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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3747. Отображено 100.
16-02-2012 дата публикации

Pick Assembly with Integrated Piston

Номер: US20120038203A1
Автор: David R. Hall
Принадлежит: Hall David R

In one aspect of the present invention a pick assembly comprises a rotatable drum comprising at least one block disposed on a circumferential surface of the drum. The at least one block comprises a cavity comprising a cylinder. A pick comprises a working end and an opposing base end wherein the base end is disposed within the cavity and comprises a piston that is slidably retained within the cylinder. In another aspect of the present invention a pick assembly comprises a rotatable drum comprising at least one block disposed on a circumferential surface of the drum. The rotatable drum comprises a cavity comprising a cylinder. The at least one block comprises a first end and an opposing second end wherein the second end is disposed within the cavity. A pick comprising a working end is rigidly secured to the first end of the at least one block and the second end comprises a piston slidably retained within the cylinder.

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Номер записи: 1
03-05-2012 дата публикации

Drive mechanism for a longwall mining machine

Номер: US20120104832A1
Автор: Edward F. Niederriter, Shawn W. Franklin
Принадлежит: Joy MM Delaware Inc

A mining machine for mining along a mining face includes a longwall shearer, a product removal system for removing product cut by the longwall shearer, and a drive system for moving the longwall shearer along a rack extending along the mining face. The drive system including a housing coupled to the longwall shearer, a motor, and a sprocket at least partially positioned within the housing and drivingly connected to the motor. The sprocket is engaged with the rack and moves the longwall shearer along the rack. A shoe maintains the sprocket in engagement with the rack. The housing is configured to rotate relative to the longwall shearer such that the drive system adjusts for vertical height variations and horizontal variations of the rack.

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Номер записи: 2
12-07-2012 дата публикации

Tool

Номер: US20120174366A1
Автор: Günter Hähn, Martin Lenz, Stefan Abresch, Thomas Lehnert
Принадлежит: WIRTGEN GMBH

A tool for mounting a chisel on a chisel holder, having an actuating member, which has a push-off section, wherein the actuating member can be displaced along a displacement direction. It is possible to simplify changing the chisel if the actuating member can be shifted by an actuating unit. The actuating unit has a draw-in section, which is spaced apart from the push-off section and is arranged transversely with respect to the displacement direction of the actuating member. The actuating member can be power-operated bidirectionally in the displacement direction by the actuating unit.

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Номер записи: 3
12-07-2012 дата публикации

Bit holding system with an opening for removal of broken bits

Номер: US20120175939A1
Автор: Michael L. O'Neill
Принадлежит: Joy MM Delaware Inc

A cutting tool assembly including a bit holder having a forward portion, a rearward portion, and a generally planar mounting surface between the forward and rearward portions. The forward portion defines a front aperture having an axis inclined relative to the mounting surface, and the rearward portion defines a rear aperture open to the front aperture. A cutting bit is mounted in the front aperture and includes a rearward end accessible through the rear aperture of the bit holder rearward portion.

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Номер записи: 4
28-03-2013 дата публикации

TOOL SYSTEM AND TOOL FOR MINING MACHINE

Номер: US20130076102A1
Автор: Johnson Michael, Kuiper Lincoln, Pizzato Walter, Ross Matthew, Steel Richard, Wenham Paul
Принадлежит: SOUTHERN ENGINEERING SERVICES PTY LTD

A tool system for a mining machine. The tool comprises a tool holder () and a cutting tool pick () with a cutting tip (). The mounting end of the tool comprises a tapered shank () in a corresponding tapered socket () of the tool holder (). There may be a wear plate () situated between the tool holder () and the tool (). There may be further removable wear plates () positioned between the tool holder and the tool in the shank region, these wear plates may have lateral projections () engaging corresponding recesses () in the shank region of the body (). All these wear plates may be sacrificial and are able to be replaced upon wear, thus less damage will occur to the shank region of the tool or the holder body. The tool assembly may further include a pin () which can engage both the tool and holder by extending through aligned openings, opening () in the tool holder and opening () in the tool. The pin may be resiliently held in place. A spray unit () extends through the wear part () and has an outlet () to direct fluid toward the cutting tip (). 164-. (canceled)65. A tool for a tool system for a mining machine , the tool comprising:a cutting end for winning mineral from an ore body,a mounting end comprising a shank complementary with and engageable in a socket of a tool holder,a laterally extending flange between the mounting end and the cutting end, the flange being engageable by a lever to facilitate removal of the tool from the tool holder, anda line of weakness in the tool defining a predetermined failure point, the line of weakness being positioned on the cutting end side of the flange, such that the tool is adapted to fail at a position that leaves the flange intact.66. A tool according to claim 65 , wherein the line of weakness extends laterally across the tool.67. A tool according to claim 65 , wherein the line of weakness is in the form of a groove in the tool.68. A tool according to claim 65 , wherein the tool has a streamlined shape.69. A tool according to ...

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Номер записи: 5
25-04-2013 дата публикации

Cutter Insert Gum Modification Method And Apparatus

Номер: US20130099553A1
Автор: Krauter David
Принадлежит: HERRENKNECHT TUNNELING SYSTEMS

Described herein are several methods and apparatuses for treating a cutter tool adapted to be used in tunnel boring operations. In one form, an initial cutter member blank is formed and heat treated prior to a laser cladding process. An alloy is often applied to the surface of the cutter blank adjacent to the cutting elements by the cladding process whereby the cladding process has insufficient heat transfer from the cladding process to reduce hardness properties of the inserts and/or the cutter blank. In one example a fabric-like material defines the region of the exterior hard surface. 1. A method of treating a cutter tool , the method comprising:a) preheating the tool to at least 350° F.b) identifying a gum region positioned in the outer portion of the cutter tool,c) employing laser cladding to the gum region adjacent to cutting elements,d) whereas the cutting elements have a hardness higher than that of the surrounding gum region adjacent thereto and the heat transfer to the cutting elements from the laser cladding process is insufficient to materially alter the hardness of said cutting elements and the gum region is more resistant to erosive wear.2. The method as recited in whereby the cladding process applies a cladding material at a thickness s greater than 0.030 of an inch.3. The method as recited in whereby the heat transfer to the cutting elements does not raise the temperature of the cutting elements above 900° F.4. The method as recited in further comprising the step of brazing the cutting elements into cavities within the cutter tool.5. The method as recited in whereby a distance of a laser beam in the laser cladding process to the gum region is adjusted to a consistent width during application on the gum region.6. A method of treating a cutter tool claim 1 , the method comprising the steps of:a) providing a cutter tool that is heat treated with an outer region defining a plurality of cavities adapted to receive cutting elements,b) inserting cutting ...

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Номер записи: 6
16-05-2013 дата публикации

REPLACEABLE ARBOR TOOL HOLDER FOR REPLACEABLE IMPACT TOOLS

Номер: US20130119746A1
Автор: Clark Cedric J., Clark Ryan L., Clark Travis L.
Принадлежит:

A replaceable arbor tool holder for replaceable impact tools provides a base structurally carrying a tool holder for a replaceable impact tool. The base is arcuate and the tool holder is structurally interconnected to a top surface of the base. A medial channel is defined in the tool holder to releasably carry an impact tool. The tool holder converts impact forces upon the impact tool into frictional forces along a line tangent to the circumference of the arbor when the tool holder is fastened to the rotating arbor. 1. An impact tool holder for a rotating arbor of a crushing and milling machine , the tool holder comprising in combination:a base having a top portion, a bottom portion, a leading end portion and a trailing end portion configured for releasable attachment to the arbor; anda tool holder structurally connected to the top portion of the base and configured to releasably carry a tool.2. The impact tool holder for a rotating arbor of further comprising:a bolt hole defined in the base for a mounting bolt to extend therethrough to releasably engage with the arbor.3. The impact tool holder for a rotating arbor of further comprising:a bolt bushing carried on the bottom surface of the base defining a medial channel communicating with a bolt hole defined in the base for a mounting bolt to extend simultaneously therethrough to releasable engage with the arbor.4. The impact tool holder for a rotating arbor of further comprising:an impact tool releasably carried by the tool holder.5. The impact tool holder for a rotating arbor of further comprising:a gusset communicating between the base and the tool holder.6. The impact tool holder for a rotating arbor of wherein:the base is convex on the top portion.7. The impact tool holder for a rotating arbor of wherein:the base is concave on the bottom portion.8. The impact tool holder for a rotating arbor of wherein:the base is welded to an outer circumferential surface of a cylindrical arbor.9. The impact tool holder for a ...

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Номер записи: 7
11-07-2013 дата публикации

CUTTING TOOL HOLDING DEVICE

Номер: US20130175848A1
Автор: CHIANG Chun-Li
Принадлежит: EVERPADS CO., LTD.

A cutting tool holding device includes a base, a cutting tool holder and a fastening member. The base includes an abutting portion and a transverse dovetail groove, wherein the abutting portion is defined between a first wall with a mounting surface and a second wall, and the transverse dovetail groove is formed on the mounting surface. The cutting tool holder has a transverse dovetail portion, wherein the cutting tool holder is abutted against the abutting portion, and the transverse dovetail portion is detachably engaged into the transverse dovetail groove on the mounting surface of the second wall. The fastening member is for fastening the cutting tool holder to the base. 1. A cutting tool holding device , comprising: an abutting portion defined between a first wall with a mounting surface and a second wall; and', 'a transverse dovetail groove formed on the mounting surface;, 'a base, comprisinga cutting tool holder having a transverse dovetail portion, wherein the cutting tool holder is abutted against the abutting portion, and the transverse dovetail portion is detachably engaged into the transverse dovetail groove on the mounting surface of the second wall; anda fastening member for fastening the cutting tool holder to the base.2. The cutting tool holding device of claim 1 , wherein:a bottom surface of the transverse dovetail groove has a depression space; anda pressing member is installed in the depression space, and the pressing member having a thickness changing gradually along a direction of a length thereof is configured for pressing and positioning the cutting tool holder.3. The cutting tool holding device of claim 1 , wherein:the base further comprises a mounting hole penetrating the second wall and a fastening hole communicated with the mounting hole, and the first wall and the second wall has an included angle not greater than 90 degrees;the cutting tool holder further comprises a holding hole penetrating the cutting tool holder, and the holding hole ...

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Номер записи: 8
08-08-2013 дата публикации

WEAR PART

Номер: US20130199693A1
Автор: Tank Klaus, Van Staden Louise Frances, Wai Siu-Wah
Принадлежит:

A tool component comprising a wear part covered at least in part by a connection member, the wear part having a specified hardness and the connection member being a metal or alloy, and the wear part comprising a surface that includes one or more depressions or projections therefrom, and the connection member having been pressed against that surface so that at least the surface of the connection member that faces the wear part surface follows the profile of the wear part, whereby relative movement between the wear part and connection member is substantially prevented. The metal or alloy connection member may be readily attached to a tool body for example by brazing of the like. The wear part may comprise a material that is not readily brazeable, for example a ceramic material or a cermet or a superhard material or a composite of such materials. 135.-. (canceled)36. A tool component comprising a wear part that is covered at least in part by a connection member , the wear part having a hardness of at least 15 GPa and comprising a ceramic material , a cermet material , or a superhard material or a composite of a ceramic and a superhard material , or a cermet and a superhard material , and the connection member comprises a metal or alloy , having a hardness less than 15 GPa , the connection member providing a layer over at least part of the wear part , the ratio of the thickness of the connection member to the thickness of the wear part underlying it measured at any point being at most 1:10 , the wear part comprising a surface that includes one or more depressions therein and/or projections therefrom , and at least part of the connection member having been pressed against at least part of the surface of the wear part that includes the depressions or projections , such that a surface of the connection member that faces a surface of the wear part follows the profile of the said part of the surface of the wear part against which it has been pressed , whereby the surfaces of ...

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Номер записи: 9
15-08-2013 дата публикации

CUTTING TOOL HOLDING DEVICE

Номер: US20130207444A1
Автор: CHIANG Chun-Li
Принадлежит: EVERPADS CO., LTD.

A cutting tool holding device includes a base, a positioning tube and a positioning member. The base includes a mounting hole and a through hole, and the through hole is formed at a side of the mounting hole and communicated with the mounting hole. The positioning tube includes an axial receiving hole, an accommodated portion and a limiting groove. The axial receiving hole is formed within the positioning tube for receiving a cutting tool. The accommodated portion is disposed at an end of the positioning tube for being installed into the mounting hole. The limiting groove is formed on a side of the accommodated portion. The positioning member is positioned in the through hole of the base, wherein the positioning member abuts against the limiting groove of the positioning tube. 1. A cutting tool holding device , comprising: a mounting hole; and', 'a through hole formed at a side of the mounting hole and communicated with the mounting hole;, 'a base, comprising an axial receiving hole formed within the positioning tube for receiving a cutting tool;', 'an accommodated portion disposed at an end of the positioning tube for being installed into the mounting hole; and', 'a limiting groove formed on a side of the accommodated portion; and, 'a positioning tube, comprisinga positioning member positioned in the through hole of the base, wherein the positioning member abuts against the limiting groove of the positioning tube.2. The cutting tool holding device of claim 1 , wherein:the base further comprises a first wail and a second wall, the second wall has a mounting surface, and the mounting hole is formed at the mounting surface; andthe positioning tube further comprises a step portion disposed at an outside of the positioning tube, and the step portion abuts against the mounting surface.3. The cutting tool holding device of claim 1 , wherein:the base further comprises an axial pressing groove disposed at a side of the mounting hole opposing to the through hole; andthe ...

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Номер записи: 10
15-08-2013 дата публикации

Metal Matrix Composite Mining Pick and Method of Making

Номер: US20130207445A1
Автор: Bell Andy
Принадлежит: Sandvik Intellectual Property AB

A mining pick is disclosed. The pick has a body, at least part of the body being formed of a metal matrix composite comprising particles dispersed in a metal, a cutting element mounted to body, and a shank extending from the body. The at least part of the body formed of the metal matrix composite is configured to provide a barrier during an excavation operation. 1. A mining pick , the pick comprising:a body;at least part of the body being formed of a metal matrix composite comprising particles dispersed in a metal;a cutting element mounted to the body; anda shank extending from the body, wherein the at least part of the body formed of the metal matrix composite is configured to provide a barrier during an excavation operation.2. A mining pick defined by wherein the at least part of the body formed of the metal matrix composite is configured to provide a barrier disposed adjacent to a distal end of the body claim 1 , the barrier protecting at least a portion of the mining pick disposed between the barrier and a proximal end of the shank.3. A mining pick defined by claim 1 , wherein the at least part of the body formed of the metal matrix composite forms an exterior surface of the body adjacent the cutting element.4. A mining pick defined by wherein the exterior surface encircles the cutting element.5. A mining pick defined by claim 1 , wherein the metal matrix composite has less propensity to cause ignition of a flammable substance adjacent the body during the excavation operation than at least one of cemented carbide claim 1 , a material of the shank claim 1 , and a material of the cutting element.6. A mining pick defined by claim 1 , wherein the at least part of the body formed of the metal matrix composite is configured to provide a barrier after the cutting element fails.7. A mining pick defined by claim 1 , wherein the particles have a hardness greater than 1000 Hardness Vickers and a modulus greater than around 200 Gigapascals.8. A mining pick defined by claim ...

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Номер записи: 11
19-09-2013 дата публикации

CHISEL HOLDER, AND CHISEL HOLDER SYSTEM COMPRISING A CHISEL HOLDER AND A BASE PART

Номер: US20130241264A1
Автор: Barimani Cyrus, Buhr Karsten, Diesner Bernhard, Hähn Günter, Kammerer Karl, Lehnert Thomas, Roth Markus
Принадлежит: WIRTGEN GMBH

A chisel holder comprises a body zone () having a chisel receiving opening () that is open at least in the direction of a chisel insertion end () of the body zone (), and also comprises a fastening shaft () which extends from a supporting end () of the body zone () and has a longitudinal shaft axis (L), the body zone () having a first supporting surface region () at its supporting end (). Said chisel holder is characterized in that the body zone () has a second supporting surface region () at its supporting end (), said second surface region () extending at an angle from the first supporting surface region (), or/and the first supporting surface region () comprises a first supporting surface () and a second supporting surface () extending at an angle from the first supporting surface (). 118.-. (canceled)19. A chisel holder , comprising:a body region having a chisel-receiving opening which is open at least toward a chisel insertion side of the body region; and{'sub': 'B', 'a fastening shank which extends from a supporting side of the body region and which has a shank longitudinal axis (L),'}wherein the body region has, on its supporting side, a first supporting surface region, and the body region, on its supporting side, has a second supporting surface region which is angled in relation to the first supporting surface region, or', 'the first supporting surface region comprises a first supporting surface and a second supporting surface which is angled in relation to the first supporting surface., 'wherein20. The chisel holder as claimed in claim 19 , wherein the chisel-receiving opening is open toward that supporting side substantially in the region of the first supporting surface region and in that the fastening shank extends from the body region substantially in the region of the second supporting surface region.211. The chisel holder as claimed in claim claim 19 , wherein the second supporting surface region comprises a first supporting surface and a second ...

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Номер записи: 12
19-09-2013 дата публикации

CHISEL HOLDER, AND CHISEL HOLDER SYSTEM COMPRISING A CHISEL HOLDER AND A BASE PART

Номер: US20130241265A1
Автор: Barimani Cyrus, Buhr Karsten, Diesner Bernhard, Hähn Günter, Kammerer Karl, Lehnert Thomas, Lenz Martin, Roth Markus
Принадлежит:

A chisel holder comprises a body zone () having a chisel receiving opening () that is open at least in the direction of a chisel insertion end () of the body zone (), and also comprises a fastening shaft () which extends from a supporting end () of the body zone () and has a longitudinal shaft axis. A fastening member-affecting zone is provided on a first side of the fastening shaft (), and a supporting zone () that has supporting surface regions () which are inclined relative to each other and adjoin each other in a transition zone () extending in the direction of the longitudinal shaft axis is provided on a second side of the fastening shaft (), said second side lying opposite the first side relative to the longitudinal shaft axis. Said chisel holder is characterized in that the transition zone () is designed like a cavity, or/and at least some sections of at least one supporting surface region () project radially outward from a basic outer peripheral surface () of the fastening shaft () in relation to the longitudinal shaft axis. 119.-. (canceled)20. A chisel holder , comprising:a body region having a chisel-receiving opening which is open at least toward a chisel insertion side of the body region; anda fastening shank which extends from a supporting side of the body region and which has a shank longitudinal axis (LB);wherein on the fastening shank there are provided, on a first side, a fastening element loading region and, on a second side situated opposite in relation to the shank longitudinal axis (LB), a supporting region with supporting surface regions which are inclined relative to one another and adjoin one another in a transition region extending in the direction of the shank longitudinal axis (LB), and the transition region is formed in the manner of a depression, or', 'at least one supporting surface region is formed so as to protrude at least in regions radially outward in relation to the shank longitudinal axis (LB) beyond a main outer circumferential ...

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Номер записи: 13
19-09-2013 дата публикации

Chisel Holder

Номер: US20130241266A1
Автор: Barimani Cyrus, Buhr Karsten, Hähn Günter, Lehnert Thomas
Принадлежит: WIRTGEN GMBH

The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side. 119-. (canceled)20. A bit holder for an earth working machine , comprising:an insertion projection; and two first bearing surfaces at a first angle to one another, the two first bearing surfaces diverging from the insertion projection side toward the working side; and', 'two second bearing surfaces at a second angle to one another, the two second bearing surfaces diverging from the insertion projection side toward the working side., 'a support member having an insertion projection side and a working side, the insertion projection extending from the insertion projection side, the working side facing away from the insertion projection, the working side including a bit receptacle, the support member including21. The bit holder of claim 20 , wherein:the two first bearing surfaces are generally on a first side of the bit receptacle with reference to a tool advance direction, and the two second bearing surfaces are generally on a second side of the bit receptacle with reference to the tool advance direction; andlines normal to and projecting outward from the two first bearing surfaces point in the tool advance direction and lines normal to and projecting outward from the two second bearing surfaces point away from the tool advance direction.22. The bit holder of claim 20 , wherein:the first angle is in a range ...

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Номер записи: 14
17-10-2013 дата публикации

Chisel Holder

Номер: US20130270891A1
Автор: Barimani Cyrus, Buhr Karsten, Hähn Günter, Lehnert Thomas, Lenz Martin
Принадлежит: WIRTGEN GMBH

The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another. 117-. (canceled)18. A bit holder for an earth working machine , comprising:a support member having an insertion projection side; and at least two convex abutment surfaces separated from one another; and', 'at least one pressure surface., 'an insertion projection attached to the support member and extending from the insertion projection side, the insertion projection including19. The bit holder of claim 18 , wherein:the at least two convex abutment surfaces are separated from one another by a recess defined in the insertion projection.20. The bit holder of claim 18 , wherein:the at least two convex abutment surfaces each have the same radius of curvature.21. The bit holder of claim 20 , wherein:the radius of curvature of the abutment surfaces is in a range of from 16 mm to 32 mm.22. The bit holder of claim 20 , wherein:the radius of curvature is constant over a length of the abutment surfaces.23. The bit holder of claim 20 , wherein:the abutment surfaces are arranged on an identical reference circle.24. The bit holder of claim 18 , wherein:the at least two convex abutment surfaces each have the same curvature geometry.25. The bit holder of claim 18 , wherein:the at least two convex abutment surfaces each have the same curvature center point.26. The bit holder of claim 18 , wherein:the insertion projection has a longitudinal center projection axis; andthe at least two ...

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Номер записи: 15
21-11-2013 дата публикации

Interchangeable Holder System For A Chisel

Номер: US20130307316A1
Автор: Erdmann Peter, Hammes Manfred, Laugwitz Niels, Roetsch Helmut, WACHSMANN Steffen
Принадлежит: BOMAG GMBH

The present invention relates to an interchangeable holder system comprising a basic module and an interchangeable holder for the accommodation of a cutting tool, which interchangeable holder is capable of being attached to the basic module, for the purpose of preparing ground surfaces, and to a construction machine, more particularly a stabilizer, a recycler, or a cold milling machine, comprising a milling device comprising such an interchangeable holder system. 1. An interchangeable holder system , comprising:a basic module and an interchangeable holder configured to be attached to said basic module and equipped with a cutting tool, wherein said basic module comprises a forward contact surface and a rearward contact surface situated at a receded level relative to said forward contact surface with reference to a longitudinal axis of said cutting tool, said forward contact surface and said rearward contact surface being separated from each other by a stopping step in the form of a stop wedge, said forward contact surface extending, with reference to a bottom region of said basic module, at least partially above said rearward contact surface such that said interchangeable holder, in the case of a work load on said cutting tool, is pressed against said stopping step, and wherein said interchangeable holder is configured for at least partial contact with said forward contact surface and said rearward contact surface across said stopping step, and at least one securing device to secure the interchangeable holder in a fixed position on said basic module.2. The interchangeable holder system as defined in claim 1 ,wherein said interchangeable holder is configured so as to be complementary to said forward contact surface, to said rearward contact surface, and to said stopping step of said basic module.3. The interchangeable holder system as defined in claim 1 ,wherein said forward and said rearward contact surfaces lie in respective planes.4. The interchangeable holder ...

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Номер записи: 16
21-11-2013 дата публикации

Chisel Holder And Lower Tool Part For A Chisel Holder

Номер: US20130307318A1
Автор: Diessner Bernhard, Kammerer Karl, Roth Markus
Принадлежит:

The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface. 120-. (canceled)21. A bit holder , comprising:a base part having a convexly curved support surface;an insertion projection extending from the base part; anda bore-shaped bit receptacle defined in the base part, the bit receptacle intersecting the support surface.22. The bit holder of claim 21 , wherein:the insertion projection is attached to the base part in an attachment region.23. The bit holder of claim 22 , wherein:the attachment region has a circumferential groove defined therein.24. The bit holder of claim 23 , further comprising:a sealing element received in the circumferential groove.25. The bit holder of claim 21 , wherein:the support surface has a spherical surface contour.26. The bit holder of claim 25 , wherein:the spherical surface contour of the support surface has a radius of curvature of greater than or equal to 50 mm.27. The bit holder of claim 26 , wherein:the radius of curvature is in a range of from 70 mm to 90 mm.28. The bit holder of claim 25 , wherein:the insertion projection has a longitudinal center axis;the spherical surface contour is curved about a center point; andan offset of the longitudinal center axis of the insertion projection with respect to the center point of the spherical surface contour is in a range of from 1 mm to 20 mm.29. The bit holder of claim 21 , wherein:the base part includes a front-side skirt, and the support surface at least locally forms an underside of the skirt.30. The bit holder of claim 21 , further comprising:side parts laterally adjacent to the base part; andwherein the support surface at least locally forms ...

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Номер записи: 17
21-11-2013 дата публикации

PICK TOOL AND METHOD FOR MAKING SAME

Номер: US20130307319A1
Автор: Heiderich Ernst, Lachmann Frank Friedrich, Ries Bernd Heinrich
Принадлежит:

A pick tool comprising an insert and a steel holder for the insert, the insert comprising a superhard tip joined to a cemented carbide support body having an insertion shank; the steel holder comprising a shaft for connection to a tool carrier and provided with a bore configured for receiving the insertion shank; the volume of the cemented carbide support body being at least 6 cm. 131-. (canceled)32. A pick tool comprising an insert mounted in a steel holder , the insert comprising a superhard tip joined to a cemented carbide support body at an end of the support body , the support body comprising an insertion shank; the steel holder having a bore configured to accommodate the insertion shank and comprising a shaft configured for mounting the steel holder onto a tool carrier; the cemented carbide support body having a volume of at least 15 cubic centimetres (cm) and comprising cemented carbide material having fracture toughness of at least 8 megapascals times square root metre (MPa·m) and at most 17 MPa·m; in which an inserted portion of the insertion shank is secured in the bore , the inserted portion having an axial length of at least 4 centimetres (cm) and at most 8.5 cm , and a mean diameter of at least 2 cm and at most 3.5 cm.33. A pick tool as claimed in claim 32 , in which the insertion shank is shrink-fitted within the bore.34. A pick tool as claimed in claim 32 , in which the interference between the insertion shank and the bore is at least 0.002 percent of the diameter of the insertion shank and at most 0.3 percent of the diameter of the insertion shank.35. A pick tool as claimed in claim 33 , in which the interference between the insertion shank and the bore is at least 0.002 percent of the diameter of the insertion shank and at most 0.3 percent of the diameter of the insertion shank.36. A pick tool as claimed in claim 32 , in which the support body comprises cemented carbide material comprising at most 10 weight percent metal binder material.37. A pick ...

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Номер записи: 18
28-11-2013 дата публикации

Linepan and longwall mining machine

Номер: US20130313887A1
Автор: Adrian Jones, Ron Vasey
Принадлежит: Joy MM Delaware Inc

A longwall mining machine and a linepan section, the linepan section may include a face-side rail, a gob-side rail opposite the face-side rail, and a conveyor pan between the face-side rail and the gob-side rail. The face-side rail may have a generally horizontal top surface at a top surface height and with a top surface width, an angled loading surface extending toward the mining face and the ground surface and arranged at an oblique angle relative to the top surface, the loading surface being at a loading height and with a loading surface width, the loading surface width being at least about 25 percent of the total width, and a material cavity defined in the face surface below the loading surface and recessed toward a gob-side.

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Номер записи: 19
05-12-2013 дата публикации

Face conveyor for extraction plants and trough element for said face conveyor

Номер: US20130319826A1
Автор: Detlef Hahn, Gerhard Siepenkort, Hendrik Padberg, Jens Steinberg, Joachim Raschka, Jorg Wirtz
Принадлежит: CATERPILLAR GLOBAL MINING EUROPE GMBH

A face conveyor includes a continuous conveyor formed by a conveyor chain with entrainment plates that are connected to chain links and which, when conveying, circulates in an outward run and a return run, each of which are guided in trough portions by trough elements, which are arranged in a row. Guides provided on each trough element include a first guide on a working face side and a second guide at a spacing from a goaf side. The first guide on the working face side is secured on the trough element between the outward run and the return run. The outward run and the return run extend in a laterally offset manner with respect to each other, and the trough portion guiding the entrainment plates in the outward run is open on the working face side.

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Номер записи: 20
26-12-2013 дата публикации

Attack Tool with an Interruption

Номер: US20130341999A1
Автор: Bailey John, Crockett Ronald, Hall David R., Jepson Jeff
Принадлежит:

A tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment is brazed to an interfacial surface of the steel base axially opposed to the shank. At least one interruption is formed in the interfacial surface. 1. An attack tool for degrading natural and man-made formations comprising: a shank for attachment to a driving mechanism;', 'a body portion having a height; and,', 'an interfacial surface spaced apart from said shank, said interfacial surface having a diameter and at least one interruption formed in said interfacial surface; and,, 'a base, said base including 'a planar end coupled to said interfacial surface with a braze, said planar end having a base diameter larger than said diameter of said interfacial surface.', 'a carbide segment, said carbide segment includinga supporting piece separate from said carbide segment, said supporting piece held at least partly within said interruption with a press-fit, said supporting piece including a surface that with an another surface of said interruption defines a space.2. The attack tool of claim 1 , further comprising a superhard tip spaced apart from said planar end and bonded to said carbide segment.3. The attack tool of claim 2 , wherein said superhard tip is brazed to said carbide segment with a braze having a thickness of 1.0 microns to 10 microns.4. (canceled)5. The attack tool of claim 2 , wherein said superhard tip comprises at least one material selected from a group consisting of polycrystalline diamond claim 2 , vapor-deposited diamond claim 2 , natural diamond claim 2 , cubic boron nitride claim 2 , infiltrated diamond claim 2 , layered diamond claim 2 , diamond impregnated carbide claim 2 , diamond impregnated matrix claim 2 , and silicon bonded diamond.6. The attack tool of claim 1 , wherein said braze comprises at least one of silver claim 1 , gold claim 1 , copper claim 1 , nickel claim 1 , palladium claim 1 , ...

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Номер записи: 21
16-01-2014 дата публикации

PICK ASSEMBLY, PICK HOLDER FOR SAME, PICK TOOL FOR SAME AND STRIKE ELEMENT FOR SAME

Номер: US20140015305A1
Автор: Jonker Cornelis Roelof, Lachmann Frank Friedrich, Ries Bernd Heinrich
Принадлежит:

A pick assembly () comprising a pick tool (), a pick holder () and a rotatable drive means (); in which the pick holder is attached to the rotatable drive means and the pick tool comprises a base () and a strike element () capable of being attached to the base, the strike element comprising a strike tip () defining a strike tip axis () and the base capable of being attached to the pick holder; the pick holder and pick tool being configured in relation to the drive means operative to the strike tip axis being oriented to within a strike angle of at most 5 degrees with a strike plane on which the strike tip will travel when driven by the drive means. 125-. (canceled)26. A pick assembly comprising:a rotatable drive means,a pick holder attached to the rotatable drive means, and a base and', 'a strike element comprising a strike tip defining a strike tip axis and capable of being attached to the base,', 'the strike element and the base capable of being attached to the pick holder;, 'a pick tool, comprising'}the pick holder and the pick tool being configured in relation to the drive means operative to the strike tip axis being oriented to within a strike angle of at most 2 degrees with a strike plane on which the strike tip will travel when driven by the drive means;in which the pick holder is attached to the drive means such that the pick holder is misaligned from the strike plane by an offset angle of at least 5 degrees.27. A pick assembly as claimed in claim 26 , in which the strike tip axis is aligned with the strike plane when the pick assembly is assembled as in use.28. A pick assembly as claimed in claim 26 , in which the strike element is non-rotatably attached to the base.29. A pick assembly as claimed in claim 27 , in which the strike element is non-rotatably attached to the base.30. A pick assembly as claimed in claim 26 , in which the strike tip has opposite ends connected by a peripheral side surface and the strike tip axis passes through both ends claim 26 , ...

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Номер записи: 22
06-02-2014 дата публикации

Milling drum having integral tool mounting blocks

Номер: US20140035346A1
Автор: Anne K. Fundakowski, Benjamin T. Schafer, Joseph D. Koehler
Принадлежит: Caterpillar Paving Products Inc

A tool mounting block is disclosed for use with a milling drum. The tool mounting block may have a flighting portion with a base surface configured to engage an outer cylindrical surface of the milling drum, and a mounting portion integrally formed with the flighting portion at a location opposite the base surface. The mounting portion may be configured to receive a separate tool holder. The tool mounting block may further have at least one locating feature integrally formed with the flighting and mounting portions. The at least one locating feature may be configured to interlock with at least one locating feature of an adjacent tool mounting block.

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Номер записи: 23
13-02-2014 дата публикации

CUTTING BIT AND BIT HOLDER

Номер: US20140042795A1
Автор: Fader Joseph
Принадлежит: Sandvik Intellecual property AB

A cutting bit for use in a heavy-duty mining, drilling or milling operation includes a generally conical body, a first end of which presents a cutting point and a second end of which presents an axially extending recess. The body has a generally convex surface portion. Locking means releasably and rotatably connect the cutting bit to a protruding part of a bit holder. The recess has an entrance portion presenting a generally conical surface portion. A corresponding bit holder is presented as well as a system using the cutting bit and bit holder. 1. A single tip cutting bit for use in a heavy-duty mining , drilling or milling operation , comprising:a generally conical body, a first end of which forming a cutting point and a second end of which forming an axially extending recess, the body having a generally convex surface portion; andlocking means for releasably and rotatably connecting the cutting bit to a protruding part of a bit holder, wherein the recess has an entrance portion forming a generally conical surface portion and the generally convex surface portion has an axially rounded convex surface.2. The cutting bit as claimed in claim 1 , wherein the locking means are spaced inwardly from an opening of the recess.3. The cutting bit as claimed in claim 1 , wherein the convex surface portion is positioned between the locking means and an opening of the recess.4. The cutting bit as claimed in claim 1 , wherein a distance from a base of the conical body to an innermost portion of the locking means is less than or equal to half a total height of the generally conical body.5. The cutting bit as claimed in claim 1 , wherein a radius of the convex surface portion is greater than or equal to ¼ of a distance from a base of the conical body to an innermost portion of the locking means.6. The cutting bit as claimed in claim 1 , wherein a radius of the convex surface portion is less than or equal to twice a distance from a base of the conical body to an innermost portion of ...

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Номер записи: 24
06-03-2014 дата публикации

PICK TOOL

Номер: US20140062163A1
Автор: Bowes David Christian, Can Nedret, Jonker Cornelis Roelof, Shabalala Thembinkosi
Принадлежит:

A pick tool for degrading asphalt or rock, comprising a PCD element; the PCD element comprising a PCD structure () bonded to a cemented carbide support body () at an interface; the PCD structure comprising a first region () and a second region () adjacent the first region, the second region bonded to the first region by intergrowth of diamond grains; the first region () comprising a plurality of alternating strata (), each stratum having a thickness in the range of about 30 to 300 microns; the second region comprising a plurality of strata (), one or more strata in the second region () having a thickness greater than the thicknesses of the individual strata in the first region (), wherein the alternating strata in the first region () comprise first strata alternating with second strata, the first strata being in a state of residual compressive stress and the second strata being in a state of residual tensile stress. 146-. (canceled)47. A pick tool for degrading asphalt , comprising a PCD element; the PCD element comprising a PCD structure bonded to a cemented carbide support body at an interface;the PCD structure comprising a first region and a second region adjacent the first region, the second region bonded to the first region by intergrowth of diamond grains; the first region comprising a plurality of alternating strata, each stratum having a thickness in the range of 30 to 300 microns; the second region comprising a plurality of strata, one or more strata in the second region having a thickness greater than the thicknesses of the individual strata in the first region, wherein the alternating strata in the first region comprise first strata alternating with second strata, the first strata being in a state of residual compressive stress and the second strata being in a state of residual tensile stress; in which the PCD structure defines a working end including a rounded conical apex having a radius of curvature of 1,3 mm to 4 mm and is 2.5 mm to 10 mm thick from ...

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Номер записи: 25
13-03-2014 дата публикации

MINING INSTALLATION FOR EXTRACTING SEAM-TYPE OR MASS-DEPOSIT MINERAL MATERIALS, AND MINING MACHINE FOR THE SAME

Номер: US20140070599A1
Автор: Herrmann Frank, Mohe Hartmut, Raschka Joachim, Steinberg Jens
Принадлежит:

A mining machine for extracting seam-type or mass-deposit mineral materials includes a conveyor for carrying away mined material, a machine frame that can be moved along the conveyor and that includes at least one drum, which is equipped with extracting tools, is rotatable about its drum axis and is adjustable in height relative to a machine frame by a swivel arm. The drum axis of the drum is parallel to the direction of travel of the mining machine, and the extracting tools are mounted in groups on tool carriers which are arranged on the circumference of the drum so as to be rotatable about rotation axes disposed transversely in relation to the drum axis. 120-. (canceled)21. A mining machine for extracting seam-type or mass-deposit mineral materials , comprising:a conveyor for carrying away mined material;a machine frame that can be moved along the conveyor and that comprises at least one drum, which is equipped with extracting tools, is rotatable about its drum axis and is adjustable in height relative to a machine frame by a swivel arm;wherein the drum axis of the drum is substantially parallel to the direction of travel of the mining machine, and wherein the extracting tools are mounted in groups on tool carriers which are disposed on the circumference of the drum so as to be rotatable about rotation axes disposed transversely in relation to the drum axis.22. A mining machine according to claim 21 , wherein the drum axis of the drum is substantially parallel to the direction of travel of the mining machine.232. A mining machine according to claim claim 21 , wherein during a mining run the drum axis is inclined in relation to the direction of travel claim 21 , and an angular offset between the drum axis and the direction of travel being equal to or less than ±6°.24. A mining machine according to claim 21 , wherein alignment of the drum axis relative to the direction of travel is adjustable about a tilt angle (α).25. A mining machine according to claim 21 , ...

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Номер записи: 26
27-03-2014 дата публикации

TIP FOR DEGRADATION TOOL AND TOOL COMPRISING SAME

Номер: US20140084669A1
Автор: Bowes David Christian, Can Nedret, Jonker Cornelis Roelof, Shabalala Thembinkosi
Принадлежит:

A tip for a degradation tool, the tip comprising a PCD structure () joined to a cemented carbide substrate (); the PCD structure comprising a plurality of strata () arranged so that adjacent strata have alternating compressive and tensile stress states, adjacent strata comprising different PCD grades and being directly bonded to each other by inter-growth of diamond grains; each stratum having a mean thickness of at most 500 microns; the PCD structure defining a working end including a rounded conical apex () having a radius of curvature of 1.3 mm to 4 mm. 123-. (canceled)24. A tip for a degradation tool , the tip comprising a PCD structure joined to a cemented carbide substrate; the PCD structure comprising a plurality of strata arranged so that adjacent strata have alternating compressive and tensile stress states , adjacent strata comprising different PCD grades and being directly bonded to each other by inter-growth of diamond grains to form an integral , solid and stratified PCD structure comprising different , alternating amounts of metal catalyst for diamond; each stratum having a mean thickness of at most 500 microns; the PCD structure defining a working end including a rounded conical apex having a radius of curvature of 1.3 mm to 4 mm.25. A tip as claimed in claim 24 , in which the working end has the general shape of a rounded cone claim 24 , including the rounded apex.26. A tip as disclosed in claim 24 , in which the PCD structure has a side forming a 35 degree to 55 degree angle with a central longitudinal axis of the tip.27. A tip as claimed in claim 24 , in which the radius of curvature is 1.3 mm to 3.2 mm.28. A tip as claimed in claim 24 , in Which the PCD structure is 2.5 mm to 10 mm thick from the apex to the interface between the PCD structure and the substrate.29. A tip as claimed in claim 24 , in which each stratum is at least 30 microns and at most 300 micron thick.30. A tip as claimed in claim 24 , in which the PCD structure comprises at least ...

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Номер записи: 27
07-01-2016 дата публикации

Variable Angle Cutting Bit Retaining Assembly

Номер: US20160003041A1
Автор: Fader Joseph, LAMMER Alfred
Принадлежит:

A cutting bit retaining assembly for mounting a cutting bit at a cutting machine. The assembly includes a holder body to receive a shank like adaptor with a cutting bit demountable at one end of the adaptor. An annular shoulder is provided at the cutting bit mounting end of the adaptor having a wedge configuration, so as to mount the cutting bit at a tilted angle relative to the shank of the adaptor to provide a desired cutting bit attack angle. 1. A cutting bit retaining assembly for mounting a cutting bit at a cutting machine , the assembly comprising:a holder body having a bore extending in a direction between a forward end and a rearward end of the body, an end surface being positioned at an entrance of the bore;an elongate bit shaft having a central longitudinal axis and configured to extend axially into the bore to mount the shaft at the holder body;the shaft terminated at one end by a male projection configured to be received within a female cavity formed within a cutting bit attachable to the shaft, the projection being configured to releasably retain the bit at the shaft via a retainer;a shoulder projecting radially outward from the shaft at an axial junction of the male projection and a first end of the shaft, an underside surface of the shoulder being configured to mate in touching or near touching contact with the end surface to support mounting of the shaft at the holder body; anda central longitudinal axis of the male projection aligned transverse to the longitudinal axis of the shaft such that the male projection is fixed at a generally tilted angle relative to the shaft so as to mount the bit at a predetermined attack angle relative to the holder body.2. The assembly as claimed in claim 1 , wherein the shoulder is a wedge having an axially thicker part relative to an axially thinner part claim 1 , the underside surface being provided at an underside of the shoulder.3. The assembly as claimed in claim 2 , wherein the underside surface and the end ...

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Номер записи: 28
04-01-2018 дата публикации

Bit holder shank and differential interference between the shank distal portion and the bit holder block bore

Номер: US20180003050A1
Автор: Phillip Sollami
Принадлежит: Sollami Co

Improved bit holder/bit holder block structure provides increased access to the rear of the assembly allowing bit holder blocks to be mounted closer to each other for micro-milling operations. Shortened bit holder shanks are reconfigured from prior art to provide increased holding power between the bit holder shank and bit holder block bore.

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Номер записи: 29
04-01-2018 дата публикации

PICK, IN PARTICULAR A ROUND-SHANK PICK

Номер: US20180003051A1
Автор: Allgaier Thomas, FRIEDERICHS Heiko, HABERSTROH Christoph, KRAEMER Ulrich
Принадлежит: Betek GmbH & Co. KG

The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shank, wherein the pick head consists of at least a base part and a cutting element, which is connected to the base part and is composed of a hard material, in particular hard metal, wherein the base part has a wear-resistant layer on the outer surface thereof at the connection to the cutting element, which wear-resistant layer covers at least one segment of the outer surface of the base part facing the cutting element and wherein an end face of the wear-resistant layer facing the cutting element is covered by the cutting element. According to the invention, the base part has an axially oriented cut-out for receiving a fastening segment of the cutting element, the base part has a counter surface facing the cutting element and extending around the cut-out, and the counter surface and the end face of the wear-resistant layer form a continuous flat surface. The invention further relates to two methods for producing such a pick. The pick formed in such a way has low abrasive wear. 1. A chisel comprising a chisel head and a chisel shank , wherein the chisel head is formed at least from a base part and from a cutting element which is connected to the base part and which is composed of a hard material , wherein the base part has , adjacent to the cutting element , a wear-resistant layer on its outer face , which wear-resistant layer covers at least one section , facing toward the cutting element , of the outer face of the base part , and wherein a front face , facing toward the cutting element , of the wear-resistant layer is covered by the cutting element ,wherein the base part has an axially oriented recess for receiving a fastening section of the cutting element, wherein the base part has, encircling the recess, a counterpart face which faces toward the cutting element, and wherein the counterpart face and the front face of the wear-resistant layer form a continuous ...

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Номер записи: 30
04-01-2018 дата публикации

CUTTING BIT ASSEMBLY

Номер: US20180003052A1
Автор: "ONeill Michael L.", Arnold Randy W.
Принадлежит:

A cutting bit assembly includes a block, a bit sleeve, and a seal. The block includes a first bore and a fluid passage. The fluid passage includes a first portion and a second portion in fluid communication with the first portion. The first portion is oriented obliquely with respect to the first bore, and the second portion extends at least partially around the perimeter of the first bore. The bit sleeve includes a shank, a flange, and a second bore extending through the shank and the flange. The shank is positioned within the first bore of the block such that a surface of the flange engages a first end surface of the block. The seal is positioned between the second portion of the fluid passage and the shank to prevent contact between a fluid in the fluid passage and the outer surface of the shank. 1. A cutting system for a mining machine , the cutting system comprising:a block including a first surface and a second surface opposite the first surface, the block including a block bore and a fluid passage, the block bore extending along an axis through the first surface and at least partially through the block toward the second surface, the fluid passage including a first portion and a second portion in fluid communication with the first portion, the first portion oriented obliquely with respect to the axis of the block bore, the second portion extending at least partially along the perimeter of the block bore;a sleeve including a sleeve shank, a flange, and a sleeve bore extending through the sleeve shank and the flange, the sleeve shank positioned within the block bore, a surface of the flange engaging the first surface of the block; anda seal positioned in the block bore between the second portion of the fluid passage and the sleeve shank to prevent contact between a fluid in the fluid passage and an outer surface of the sleeve shank, the seal having a dimension capable of being inserted into the block bore from the first surface.2. The cutting system of claim 1 , ...

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Номер записи: 31
02-01-2020 дата публикации

BIT HOLDER WITH ENLARGED TIRE PORTION AND NARROWED BIT HOLDER BLOCK

Номер: US20200003055A1
Автор: Sollami Phillip
Принадлежит: The Sollami Company

A bit assembly includes a base block and a bit holder having a forward body portion and a shank. The forward body portion includes an enlarged tire portion to deflect material and particles removed from the terra and protect the base block from damage. The base block includes a base and a shortened front end. The enlarged tire portion has dimensions that cover at least all of the shortened from end. The dimensions of the tire portion can also extend beyond the dimensions of the shortened front end. 114-. (canceled)15. A base block comprising:a base;a shortened front end extending from the base, the shortened front end comprising a pair of opposing flat sides and a bore extending from a front face of the shortened front end to a generally annular rear wall of the shortened front end; anda portion of the base comprising an arcuate segment axially extending past the generally annular rear wall of the shortened front end.16. The base block of claim 15 , wherein the pair of opposing flat sides each extend from adjacent a top portion of the shortened front end to the base.17. The base block of claim 15 , wherein the pair of opposing flat sides define a horizontal distance through a central axis of the bore.18. The base block of claim 17 , wherein the shortened front end comprises a top portion and a bottom portion that define a vertical distance claim 17 , the vertical distance greater than the horizontal distance. This application claims priority to and is a continuation of U.S. Non-provisional application Ser. No. 15/062,620, filed Mar. 7, 2016, to the extent allowed by law and the contents of which are incorporated herein by reference in their entireties.This disclosure relates to bit assemblies for road milling, mining, and trenching equipment, and more particularly, to a bit holder having an enlarged tire portion.Road milling, mining, and trenching equipment utilizes bits traditionally set in a bit assembly having a bit holder and a bit holder block. The bit is ...

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Номер записи: 32
07-01-2021 дата публикации

CUTTING ASSEMBLY

Номер: US20210003006A1
Автор: KANYANTA VALENTINE, LEEMING MATTHEW JOHN IAN, Saridikmen Habib
Принадлежит: GLOBAL INNOVATION CENTRE

This disclosure relates to a cutting assembly comprising a circular disk cutter (). A plurality of cutting elements () and a corresponding quantity of tool holders () are arranged around a circumferential surface of the disk cutter. Each tool holder is at least partially laterally offset with respect to the circular body. 1. A cutting assembly for a rock excavation machine comprising:a base unit,one or more moveable support arms extending from the base unit,a drive spindle rotatably mounted to the or each moveable support arm,a disk cutter fixed about the drive spindle such that rotation of the drive spindle causes a corresponding rotation of the disk cutter,the disk cutter comprising a cutter body, a plurality of cutting elements and a corresponding quantity of tool holders, one for each cutting element, the cutting elements and tool holders being arranged around a circumferential surface of the cutter body,in which each tool holder is at least partially laterally offset with respect to the cutter body.2. The cutting assembly as claimed in claim 1 , in which successive tool holders around the circumferential surface are laterally offset in alternating first and second directions.3. The cutting assembly as claimed in claim 1 , each tool holder comprising a proximal portion and a distal portion meeting at an intersection.4. The cutting assembly as claimed in claim 3 , in which the distal portion is laterally offset with respect to the proximal portion.5. The cutting assembly as claimed in claim 3 , in which each cutting element is mounted in the distal portion of the tool holder.6. The cutting assembly as claimed in claim 1 , further comprising hard-facing material on or near each tool holder.7. The cutting assembly as claimed in claim 6 , in which the hard-facing material is different to material of each cutting element.8. The cutting assembly as claimed in claim 6 , in which the hard-facing material is located on a leading face of each tool holder.9. The cutting ...

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Номер записи: 33
07-01-2021 дата публикации

A PICK SLEEVE

Номер: US20210003007A1
Автор: BEARD Gavin James, FORSYTH Mark
Принадлежит:

The invention relates to a pick sleeve () including a head () and a shank (). The head () includes a central part () and a bearing member () which is secured to the central part (). The bearing member () is separable from the central part () in order to facilitate removal of the pick sleeve () from a holder (). The invention extends to a tool () which is used in the removal of the pick sleeve () from the holder (). 1. A pick sleeve which includes:a head which includes a central part having an outer surface and a bearing member which is secured to the central part and is disconnectable therefrom and which defines a bearing surface through which a load can be applied to the bearing member;a shank which is connected to and protrudes from the central part of the head and which is receivable in a holder or cutter box of a mining machine; andan open-ended bore extending through the head and the shank within which a shank of a pick is receivable.2. A pick sleeve as claimed in claim 1 , in which the bearing surface protrudes laterally beyond the outer surface of the central part3. A pick sleeve as claimed in claim 1 , in which the central part and the bearing member are formed as separate parts and secured together.4. A pick sleeve as claimed in claim 3 , in which the bearing member is a press-fit on the central part.5. A pick sleeve as claimed in claim 1 , in which the central part of the head and the shank are formed as a unitary construction.6. A pick sleeve as claimed in claim 1 , in which the outer surface of the central part is frusto-conical and tapers towards a front of the head.7. A pick sleeve as claimed in claim 6 , in which the bearing member is annular and the bearing surface is tapered and extends substantially continuously with and forms an extension of the outer surface of the central part.8. A pick sleeve as claimed in claim 1 , in which a rear surface of the bearing member forms a shoulder which in use abuts against a surface of the holder in which the ...

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Номер записи: 34
02-01-2020 дата публикации

Wear component of a milling machine, milling machine, and method for determining the wear on the wear component

Номер: US20200003668A1
Автор: Lothar Schwalbach, Matthias BRÜCK
Принадлежит: WIRTGEN GMBH

The invention relates to a wear component of a milling machine, to a milling machine equipped with such a wear component, and to a method for determining the wear on a wear component. The wear component has associated with it at least one contactlessly readable electronic component for determining the wear on the wear component. Provision is made according to the present invention that at least one sensor is connected to at least one contactlessly readable electronic component for the transfer of data; that the contactlessly readable electronic component is embodied to receive measured data of the sensor and furnish them for contactless reading; and that at least one measurement portion of the sensor is guided, along at least one wear direction to be monitored, into a wear region or along the wear region of the wear component. The invention makes possible a better milling result as a result of optimized maintenance.

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Номер записи: 35
12-01-2017 дата публикации

Earth Working Machine And Method For Wear-Optimized Operation Of An Earth Working Machine

Номер: US20170009578A1
Автор: Barimani Cyrus, Hähn Günter, Wagner Stefan
Принадлежит:

The invention relates to an earth working machine and to a method for wear-optimized operation of such an earth working machine. Provision is made in this context that machine parameters with which the earth working machine is operated are adapted, in consideration of material properties of the substrate to be worked, in such a way that favorable wear behavior exists for the earth working tools being used. 128-. (canceled)29. An earth working machine comprising:at least one milling drum having earth working tools mounted thereon;a vertical adjustment system for setting a milling depth;a drive engine;a machine controller for setting actual machine parameters for operation of the earth working machine;a processing device having an associated memory; a wear on the earth working tools,', 'at least one material property of a material to be removed, and', 'at least one machine parameter,, 'wherein the memory has stored therein at least one material property and at least one described correlation between'}wherein the processing device is configured to ascertain, based on the stored correlation and on the material property, at least one target machine parameter for optimized wear on the earth working tools.30. The earth working machine according to claim 29 , wherein the memory has stored therein at least one specified machine parameter claim 29 , and a correlation of the wear on the earth working tools with the specified machine parameter; andthe processing device is configured to take the specified machine parameter into consideration when ascertaining the target machine parameter.31. The earth working machine according to claim 29 , wherein the memory has stored therein a job parameter claim 29 , and a correlation of the wear on the earth working tools with the job parameter; andthe processing device is configured to take the job parameter into consideration when ascertaining the target machine parameter.32. The earth working machine according to claim 31 , wherein the ...

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Номер записи: 36
10-01-2019 дата публикации

ANGLED CHISEL INSERT

Номер: US20190010763A1
Автор: Belnap John Daniel, CANNON NEIL, Crockett Ronald B., Madsen Aaron, Norris Dwain
Принадлежит:

A cutting element includes a substrate that is axially symmetric about a central axis. The substrate has a radius perpendicular to the central axis and that extends from the central axis to an outer surface of the substrate. A super-hard material is coupled to the substrate, and the central axis passes through the super-hard material. The super-hard material has an external surface defining at least one ridge protruding from a remainder of the external surface. A central point on the central axis is offset from the external surface of the super-hard material by a distance equal to the radius of the substrate. A distance measured from the external surface of the super-hard material to the central point is greatest at a position between 25° and 45° from the central axis of the substrate. 1. A cutting element , comprising:a substrate that is axially symmetric about a central axis thereof, the substrate having a radius that is perpendicular to the central axis and which extending from the central axis to an outer surface of the substrate;a super-hard material coupled to the substrate such that the central axis passes through the super-hard material, the super-hard material having an external surface defining at least one ridge protruding from a remainder of the external surface; anda central point on the central axis and offset from the external surface of the super-hard material by a distance equal to the radius of the substrate, a distance measured from the external surface of the super-hard material to the central point being greatest at a position between 25° and 45° from the central axis of the substrate.2. The cutting element of claim 1 , the at least one ridge being generally perpendicular to the central axis of the substrate.3. The cutting element of claim 1 , the at least one ridge being generally convex over a length thereof.4. The cutting element of claim 3 , the at least one ridge having a radius of curvature of between 0.075 inch and 3.000 inches claim 3 , ...

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Номер записи: 37
14-01-2021 дата публикации

CUTTING ASSEMBLY

Номер: US20210010371A1
Автор: KANYANTA VALENTINE, LEEMING MATTHEW JOHN IAN, Saridikmen Habib
Принадлежит: ELEMENT SIX (UK) LIMITED

This disclosure relates to a cutting assembly for mining or extraction. The cutting assembly comprises a circular disk cutter (). Cutting elements are arranged around a circumferential surface of the disk cutter, each seated in a tool holder (). The orientation of the seat is such that the cutting element () points tangentially in or towards the intended 1. A cutting assembly for a rock excavation machine comprising:a base unit,one or more moveable support arms extending from the base unit,a drive spindle rotatably mounted to the or each moveable support arm,a disk cutter fixed about the drive spindle such that rotation of the drive spindle causes a corresponding rotation of the disk cutter,the disk cutter comprising a cutter body, a plurality of cutting elements and a corresponding quantity of tool holders, one for each cutting element, the cutting elements and tool holders being arranged around a circumferential surface of the cutter body,each cutting element being received into a seat in the tool holder,in which the seat is oriented such that the cutting element points in or towards the intended direction of rotation.2. The cutting assembly as claimed in claim 1 , in which the tool holders extend radially outwardly from the cutter body.3. The cutting assembly as claimed in claim 1 , in which a rake angle of the cutting element with respect to the tool holder is between 10 and 30 degrees.4. The cutting assembly as claimed in claim 3 , in which the rake angle is around 25 degrees.5. The cutting assembly as claimed in claim 1 , in which the tool holder is permanently mounted to the cutter body claim 1 , for example claim 1 , using brazing.6. The cutting assembly as claimed in claim 1 , in which the tool holder is detachably mounted to the cutter body.7. The cutting assembly as claimed in claim 6 , in which the tool holder is detachably mounted to the cutter body using a locking pin arrangement.8. The cutting assembly as claimed in claim 1 , in which each cutting ...

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Номер записи: 38
12-01-2017 дата публикации

Cutting bit monitoring system

Номер: US20170011564A1
Автор: Eric S. Engelmann, John Lee Marsolek
Принадлежит: Caterpillar Paving Products Inc

A monitoring system for at least one cutting bit connectable to a milling drum of a machine is disclosed. The monitoring system may include at least one transmitter disposed within the at least one cutting bit and configured to emit a signal associated with the at least one cutting bit. The monitoring system may further include a reader configured to detect the signal emitted by the at least one transmitter, and a controller electronically connected to the reader. The controller may be configured to determine that the at least one cutting bit is connected to the milling drum based on the signal emitted by the at least one transmitter, and determine when a wear level of the at least one cutting bit exceeds a threshold based on the signal emitted by the at least one transmitter.

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Номер записи: 39
09-01-2020 дата публикации

VERTICAL LIFTING TYPE COMPREHENSIVE DRUM COAL-MINING MACHINE WITHOUT ROCKER ARM

Номер: US20200011174A1
Автор: LU Wenjia, LV Hangyuan, Tan Xuefei, Yang Zhou, YAO Guo, ZHANG Jinrui, Zhang Yimin, ZHAO Yanhui, ZHU Lisha
Принадлежит:

Disclosed is a comprehensive vertical-lifting drum shearer without a rocker arm suitable for mining a medium-thick long wall coal seam having a coal seam dip angle of less than 30 degrees and a medium-hard or hard coal quality. The comprehensive vertical-lifting no-rocker drum shearer comprises a central control box (), left and right cutting lifting reduction boxes (), left and in right side guiding rail fixing casings (), left and right traction reduction boxes (), and left and right walking gearboxes (); the left and right cutting lifting reduction boxes () are provided with slideways which are matched with lifting guiding rails () of the left and right side guiding rail fixing casings () in a sliding manner; the left and right cutting lifting reduction boxes () are driven to perform a lifting motion by lifting oil cylinders (), and meanwhile, cutting motors of the left and right cutting lifting reduction boxes () drive a spiral drum to rotate by means of a cutting gear reduction mechanism; the left and right traction reduction boxes () drive the left and right walking gearboxes (), and then drive the whole machine to perform left and right traction movement. The cutting gear reduction mechanism of said shearer uses two-level gear transmission and two-level planetary gear transmission, without a plurality of idle wheel sets, and the transmission chain is simple; and the cooperation of the lifting guiding rails and the slideways makes the whole machine compact in structure, improving the operation reliability and stability. 1. A vertical lifting type comprehensive drum coal-mining machine without a rocker arm , comprising: a central control box , a left supporting box body , a right supporting box body , a left guide rail fixing box body , a right guide rail fixing box body , a left traveling gear box , and a right traveling gear box;wherein the left supporting box body and the right supporting box body are symmetrically arranged below the central control box, the ...

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Номер записи: 40
15-01-2015 дата публикации

Cutting Tool Mounting Assembly

Номер: US20150015055A1
Автор: Bookhamer Paul A., Paros Nicholas J., Weber Luke A.
Принадлежит:

A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine, includes: a tool holder having a key shank; a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder; a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base; and wherein tool holder includes a retention post configured for cooperating with the base for connecting the tool holder to the base. Also included is a dampening element configured between the tool holder and the base for reducing vibration therebetween. 1. A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine , the cutting tool mounting assembly comprising:a tool holder having a key shank;a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder;a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base; andwherein the tool holder includes a retention post configured for cooperating with the base for connecting the tool holder to the base.2. The cutting tool mounting assembly of claim 1 , wherein the mounting groove of the base includes an open end for receiving the key shank and an opposing rearward end and the mounting groove slopes generally downwardly from the open end to the rearward end.3. The cutting tool mounting assembly of claim 2 , wherein the base includes an aperture extending through the rearward end for receiving the retention post of the tool holder.4. The cutting tool mounting assembly of claim 3 , wherein the retention post includes a distal end and an annular groove formed adjacent to the distal end.5. The cutting tool mounting ...

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Номер записи: 41
19-01-2017 дата публикации

ACTIVE METAL BRAZE JOINT WITH STRESS RELIEVING LAYER

Номер: US20170014930A1
Автор: EASLEY Thomas
Принадлежит: DIAMOND INNOVATIONS, INC.

The present disclosure relates to a brazed superabrasive assemblies and method of producing brazed superabrasive assemblies. The brazed superabrasive assemblies may include a plurality of braze alloy layers that are positioned opposite a stress relieving layer. The stress relieving layer may have a solidus temperature that is greater than a solidus temperature of the plurality of braze alloy layers. 1. A brazed superabrasive assembly , comprising:a superabrasive layer;a stress relieving layer coupled to the superabrasive layer by a first braze layer; anda substrate coupled to the stress relieving layer by a last braze layer, wherein the stress relieving layer has a solidus or melting temperature that is greater than a solidus temperature of the first braze layer and the last braze layer.2. The brazed superabrasive assembly of claim 1 , wherein the stress relieving layer comprises copper or a copper alloy.3. The brazed superabrasive assembly of claim 1 , wherein the stress relieving layer comprises nickel or a nickel alloy.4. The brazed superabrasive assembly of any of - claim 1 , wherein the first braze layer comprises a refractory metal or a refractory metal alloy that is positioned between the superabrasive layer and the stress relieving layer.5. The brazed superabrasive assembly of any of - claim 1 , further comprising a carbide layer claim 1 , wherein the carbide layer is positioned between a first diamond-containing material and the first braze layer.6. The brazed superabrasive assembly of claim 5 , wherein the carbide layer comprises a carbide of a refractory metal.7. The brazed superabrasive assembly of any of - claim 5 , wherein the refractory metal comprises at least one of tungsten claim 5 , titanium claim 5 , niobium claim 5 , zirconium claim 5 , tantalum claim 5 , vanadium claim 5 , chromium claim 5 , molybdenum claim 5 , or an alloy or composite thereof.8. The brazed superabrasive assembly of any of - claim 5 , wherein the first braze layer and the ...

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Номер записи: 42
19-01-2017 дата публикации

Friction Welded Insert and Processes for Inserting the Insert into a Substrate

Номер: US20170016323A1
Автор: Behmlander Matthew, Diez Fernando Martinez, Thorson Timothy
Принадлежит: CATERPILLAR INC.

A method for attaching an insert to a substrate includes: rubbing the insert against the substrate; forming a heat-affected zone in the substrate; forming plasticized substrate material from friction resulting from the rubbing; moving the insert to a first depth in the heat-affected zone in the substrate; moving the insert to a second depth in the heat-affected zone in the substrate where the first depth is deeper than the second depth; flowing the plasticized material against the insert; and releasing the insert. 1. An insert , comprising:a body, having an engaging portion and a free portion located opposite the engaging portion;a side portion of the body defining a retention cavity, the retention cavity being located closer to the engaging portion than the free portion;a junction between the retention cavity on a side of the portion defining a rounded surface; anda protrusion extending from a surface on the engaging portion.2. The insert of claim 1 , further comprising a second retention cavity located near the engaging portion.3. The insert of claim 1 , further comprising a hole located in at least one of either the side portion and the engaging portion.4. The insert of claim 1 , further comprising a second protrusion extending from a surface on the engaging portion.5. The insert of claim 1 , further comprising a fillet defined by a junction between a side portion of the body and a retention groove.6. The insert of claim 1 , further comprising a coating on the body.7. The insert of claim 1 , wherein the body consists of at least one of the following: carbide claim 1 , ceramic claim 1 , and metal.8. The insert of claim 1 , further comprising a substrate encompassing the engaging portion of the body.9. The insert of claim 8 , wherein the substrate further comprises multiple substrate portions.10. A ground engaging element for a machine claim 8 , the ground engaging element comprising:a substrate; andan insert having a body, which has an engaging portion and a free ...

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Номер записи: 43
18-01-2018 дата публикации

ROTARY CLAW DRILL BIT

Номер: US20180016849A1
Автор: Fader Joseph, GHOLIOF Hamidreza, GRIEF Ralf
Принадлежит:

A modular rotary claw drill bit having a head is mountable at a body, the head mounting a plurality of front and gauge cutting picks. A cutting tip of each front pick is located at a different radial position at the head to optimise the flushing of cut material and to minimise pick wear during use. 1. A rotary claw drill bit comprising:a central axis;a body having a rearward region for attachment of the bit to a drill string;a bore extending axially through the body;a head provided at a forward end of the body and having an axially extending bore arranged to align with the bore of the body; anda plurality of picks mounted at the head, each pick having a cutting tip, the picks including radially inner front picks and radially outermost gauge picks, wherein the head and body are non-integrally formed, and a radial separation distance of the cutting tips of each of the front picks from the axis is different.2. The bit as claimed in claim 1 , wherein the bore of the head exits the head as a single opening positioned at the axis of the bit.3. The bit as claimed in claim 1 , wherein an axial position of the tips of the front picks at the head is different.4. The bit as claimed in claim 1 , wherein the front picks are positioned at the head asymmetrically.5. The bit as claimed in claim 1 , wherein the head includes a plurality of pick holders formed integrally or non-integrally with the head and the picks are detachably mounted at the head via the pick holders.6. The bit as claimed in claim 1 , wherein the picks are arranged into groups claim 1 , and the head includes a plurality of shoulders extending radially outward and axially rearward from a forward end of the head each shoulder mounting one of the groups of the picks.7. The bit as claimed in claim 1 , wherein the picks are arranged into groups according to an angular alignment of each pick at the head relative to a central axis of the bit claim 1 , wherein within a same group picks claim 1 , the picks includes an ...

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Номер записи: 44
18-01-2018 дата публикации

Chisel Holder For A Soil Treatment Machine

Номер: US20180016898A1
Автор: Barimani Cyrus, Buhr Karsten, Diessner Bernhard, Hähn Günter, Kammerer Karl, Lehnert Thomas, Roth Markus
Принадлежит:

The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair. 116-. (canceled)17. A tool apparatus for an earth working machine , comprising:an insertion projection; anda support member having an insertion projection side and a working side, the insertion projection extending from the insertion projection side, the working side facing away from the insertion projection, the support member including a convex pyramid shaped bearing surface system defined on the insertion projection side, the convex pyramid shaped bearing surface system including at least three non-parallel planar bearing surfaces, each of the bearing surfaces forming a part of a side of one and the same pyramid shape having at least three sides, each of the bearing surfaces intersecting at least one other of the bearing surfaces.18. The tool apparatus of claim 17 , wherein:the insertion projection extends from the insertion projection side in an insertion direction; andthe at least three non-parallel bearing surfaces are configured so as to support the support member against tension loading in the insertion projection parallel to the insertion direction, and to support the support member against forward and rearward forces and side to side forces orthogonal to the insertion direction.19. The tool apparatus of claim 17 ...

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Номер записи: 45
28-01-2016 дата публикации

Angled Degradation Pick

Номер: US20160024917A1
Автор: Condon Gary, Crockett Jeffrey, Crockett Ronald B., Hall David R., Norris Dwain, Peterson Gary
Принадлежит:

A degradation pick of the type used in such fields as road milling, mining, and trenching to engage and degrade tough materials such as asphalt, concrete, and rock may comprise a body attached at one end to a substantially cylindrical shaft. A hardened tip may also be attached to the body opposite the shaft. The hardened tip may comprise an axis offset from a central axis of the shaft. Such a degradation pick may be secured to an exterior of a rotatable drum or continuous chain so as to be repeatedly brought into contact with a surface of a material to be degraded. The body may comprise a protruding spine adjacent the hardened tip and opposite a direction of travel of the hardened tip when transported by a rotating drum or continuous chain. 1. A degradation pick , comprising:a substantially cylindrical shaft comprising a central axis;a body attached to one end of the shaft; anda hardened tip attached to the body opposite the shaft; whereinthe body comprises a protruding spine adjacent the hardened tip and opposite a direction of travel of the hardened tip; andan axis of the hardened tip is offset from the central axis of the shaft.2. The degradation pick of claim 1 , wherein the shaft is secured to an exterior of a rotatable drum or continuous chain.3. The degradation pick of claim 1 , wherein the protruding spine is substantially complementary to a path traveled by a distal end of the hardened tip.4. The degradation pick of claim 1 , wherein the shaft is rotationally positioned such that the protruding spine pushes aggregate perpendicular to a plane in which the hardened tip travels.5. The degradation pick of claim 1 , wherein an angle between the axis of the hardened tip and the central axis of the shaft is between 7 and 25 degrees.6. The degradation pick of claim 1 , wherein an angle between the axis of the hardened tip and a path traveled by a distal end of the hardened tip is between 25 and 43 degrees.7. The degradation pick of claim 1 , wherein the shaft is ...

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Номер записи: 46
28-01-2016 дата публикации

Universal Pick Adapter

Номер: US20160024918A1
Автор: Brown Braden, Hall David R., Johnson Zackary T., Julian Brad, Leany Francis E., Peterson Gary
Принадлежит:

An adapter may allow for non-rotating degradation tips to be secured to holders traditionally used for accepting rotatable bits. Such an adapter may comprise a body comprising an interface on one surface and a seat on an opposing surface. The interface may comprise a form complementary to an end of a holder and the seat may comprise a form for accepting a hardened tip. 1. An adapter for mating a hardened tip to a holder , comprising:a body comprising an interface on one surface and a seat on an opposing surface;the interface comprising a form complementary to an end of a holder; andthe seat comprising a form for accepting a hardened tip.2. The adapter of claim 1 , wherein the interface is secured to a holder.3. The adapter of claim 2 , wherein the interface is secured to the holder at an end of the holder exposed when the holder is positioned within a block.4. The adapter of claim 3 , wherein the block is secured to a rotatable drum or continuous chain.5. The adapter of claim 2 , wherein the interface is rigidly secured to the holder by means of a weld claim 2 , braze claim 2 , epoxy claim 2 , shrink fit claim 2 , or press fit.6. The adapter of claim 2 , wherein the interface is nonrotatably secured to the holder.7. The adapter of claim 1 , wherein the seat is secured to a hardened tip.8. The adapter of claim 7 , wherein the seat is rigidly secured to the hardened tip by means of a weld claim 7 , braze claim 7 , epoxy claim 7 , shrink fit claim 7 , or press fit.9. The adapter of claim 7 , wherein the hardened tip comprises a superhard material attached to a substrate.10. The adapter of claim 9 , wherein the hardened tip further comprises a bolster attached to the substrate opposite the superhard material.11. The adapter of claim 9 , wherein the superhard material is attached to the substrate via sintering.12. The adapter of claim 9 , wherein the superhard material comprises polycrystalline diamond.13. The adapter of claim 9 , wherein the substrate is formed of ...

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Номер записи: 47
28-01-2016 дата публикации

End Ring Degradation Pick Support

Номер: US20160024919A1
Автор: Crockett Ronald B., Hall David R., Norris Dwain
Принадлежит:

In such fields as road milling, mining and trenching it is often desirable to engage and degrade tough materials such as asphalt, concrete and rock. To do so, degradation picks comprising hardened tips may be secured to an exterior of a rotatable drum so as to be repeatedly brought into contact with a surface of a material to be degraded. To secure such degradation picks to the rotatable drum, a toroidal body comprising an interior surface rigidly attachable to the rotatable body and an exterior surface comprising a plurality of bore holes disposed there around may receive a plurality of degradation picks secured within the bore holes. 1. A degradation pick support , comprising:a toroidal body comprising an interior surface and an exterior surface;the interior surface rigidly attachable to a rotatable body; anda plurality of bore holes disposed around the exterior surface.2. The degradation pick support of claim 1 , wherein the toroidal body is rigidly secured to a rotatable body.3. The degradation pick support of claim 2 , wherein the toroidal body is coaxial with the rotatable body.4. The degradation pick support of claim 2 , wherein the rotatable body is generally cylindrical claim 2 , conical or frustoconical.5. The degradation pick support of claim 2 , wherein the toroidal body is secured proximate an end of the rotatable body along a rotational axis thereof.6. The degradation pick support of claim 5 , wherein a portion of the exterior surface facing the rotatable body is substantially planar.7. The degradation pick support of claim 6 , wherein another portion of the exterior surface facing opposite the rotatable body is substantially curved.8. The degradation pick support of claim 2 , wherein the rotatable body comprises a generally helical flange disposed around an exterior thereof.9. The degradation pick support of claim 8 , wherein the plurality of bore holes are disposed in a pattern continuing from the helical flange.10. The degradation pick support of ...

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Номер записи: 48
28-01-2016 дата публикации

Block Capable of Supporting Multiple Picks

Номер: US20160024920A1
Автор: Crockett Ronald B., Hall David R., Norris Dwain
Принадлежит:

In such fields as road milling, mining and trenching it is often desirable to engage and degrade tough materials such as asphalt, concrete and rock. To do so, degradation picks comprising hardened distal tips may be secured to an exterior of a movable support such as a rotatable drum or continuous chain so as to be repeatedly brought into contact with a material to be degraded. To secure such degradation picks to the movable support, a block comprising a body with a base surface rigidly attachable to a movable support is disclosed. A first receptacle with a first central axis may be disposed on an external surface of the body and formed to receive a first removable degradation pick. A second receptacle with a second central axis may also be disposed on the external surface and formed to receive a second removable degradation pick where the first and second central axes are nonparallel. 1. A block for securing degradation picks to a movable support , comprising:a body comprising a base surface rigidly attachable to a movable support and an external surface opposite the base surface;a first receptacle disposed on the external surface having a first central axis and formed to receive a first removable degradation pick; anda second receptacle disposed on the external surface having a second central axis and formed to receive a second removable degradation pick;wherein the first central axis and second central axis are nonparallel.2. The block of claim 1 , wherein the body comprises a sagittal plane passing from a posterior end to an anterior end thereof and separating the body into two sides claim 1 , and the first central axis falls substantially on the sagittal plane.3. The block of claim 2 , wherein the first receptacle is disposed proximate the posterior end and the second receptacle is disposed proximate the anterior end.4. The block of claim 2 , wherein the second central axis extends away from the sagittal plane.5. The block of claim 1 , further comprising at ...

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Номер записи: 49
25-01-2018 дата публикации

POLYCRSTALLINE DIAMOND STRUCTURE

Номер: US20180023348A1
Автор: Can Nedret, Shabalala Thembinkosi
Принадлежит:

A PCD structure comprises a first region and a second region adjacent the first region, the second region being bonded to the first region by intergrowth of diamond grains; the first region comprising a plurality of alternating strata or layers, each stratum or layer having a thickness in the range of around 5 to 300 microns. The second region comprises a plurality of strata or layers, one or more strata or layers in the second region having a thickness greater than the thicknesses of the individual strata or layers in the first region. The alternating layers or strata in the first region comprise first layers or strata alternating with second layers or strata, the first layers or strata being in a state of residual compressive stress and the second layers or strata being in a state of residual tensile stress. 1. A PCD structure comprising a first region and a second region adjacent the first region , the second region being bonded to the first region by intergrowth of diamond grains; the first region comprising a plurality of alternating strata or layers , each stratum or layer having a thickness in the range of around 5 to 300 microns; the second region comprising a plurality of strata or layers , one or more strata or layers in the second region having a thickness greater than the thicknesses of the individual strata or layers in the first region , wherein the alternating layers or strata in the first region comprise first layers or strata alternating with second layers or strata , the first layers or strata being in a state of residual compressive stress and the second layers or strata being in a state of residual tensile stress.2. A PCD structure according to claim 1 , wherein each stratum or layer in the first region has a thickness in the range of around 30 to 300 microns.3. A PCD structure according to claim 1 , wherein the strata or layers in the first region have a thickness or thicknesses in the range of around 30 to 200 microns.4. A PCD structure ...

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Номер записи: 50
10-02-2022 дата публикации

Pick tool for road milling

Номер: US20220042414A1
Автор: Bernd Heinrich Ries, Eric WEINBACH
Принадлежит: ELEMENT SIX GMBH

This disclosure relates to a pick tool with a PCD impact tip. The impact tip is joined to a support body at a non-planar first interface. The non-planar first interface comprises two co-axial and annular interface surfaces of differing radial widths.

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Номер записи: 51
24-04-2014 дата публикации

Combination Polycrystalline Diamond Bit and Bit Holder

Номер: US20140110991A1
Автор: Sollami Phillip
Принадлежит:

A quick change type bit/bit holder includes several different structures for holding the item in a bit block without the necessity of a fastener. The bit portion of the bit/bit holder combination includes a ductile steel insert with a polycrystalline diamond coated tungsten carbide bit positioned therein. The ductility of the steel insert acts as a shock absorber to allow the bit to successfully remove concrete as well as asphalt in a road milling machine. 1. In a bit holder for road milling machinery , a shank comprising:an elongate generally cylindrical member having a distal end including an annular axially inwardly extending groove therein defining an interior surface of an annular outer side wall between about ⅛ and ½ inch in thickness.2. The bit holder for road milling machinery as defined in further including:at least one axially oriented elongate slot extending longitudinally on said annular outer sidewall from a distal end of said shank.3. The bit holder for road milling machinery as defined in further comprising:an enlarged diameter body extending forwardly of said shank, said body including at its forwardmost end a generally cylindrical flat topped bit with a polycrystalline diamond surface.4. The bit holder for road milling machinery as defined in wherein:said generally cylindrical flat topped bit is mounted in a steel base having a ductility that provides an impact absorbing member for the PCD tipped bit.5. The bit holder for road milling machinery as defined in further comprising:an enlarged diameter body extending forwardly of said shank, said body including at its forwardmost end a generally cylindrical conical topped bit with a polycrystalline diamond surface.6. The bit holder for road milling machinery as defined in wherein:said generally cylindrical conical topped bit is mounted in a steel base having a ductility that provides an impact absorbing member for the PCD tipped bit.7. A bit/bit holder for road milling machinery comprising:a body of ...

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Номер записи: 52
29-01-2015 дата публикации

Chisel Holder

Номер: US20150028654A1
Автор: Barimani Cyrus, Buhr Karsten, Hähn Günter, Lehnert Thomas
Принадлежит:

The invention relates to a bit holder for an earth working machine, in particular a surface miner, a road milling machine, or the like, having a holding projection that comprises a bit receptacle and/or carries a cutting element. In order to improve the operating reliability of an earth working machine, provision is made according to the present invention that the holding projection has, behind the cutting element or behind a receiving region of the bit receptacle in the tool advance direction, a wear protection element having a hard-material element in order to provide an emergency-mode property. 117-. (canceled)18. A bit holder for an earth working machine , comprising:a holding projection including a bit receptacle, the bit receptacle including a receiving end for receiving a cutting bit; anda wear protection element attached to the holding projection behind the receiving end of the bit receptacle, the wear protection element including a hard-material element harder than the holding projection, the hard-material element being arranged to engage the earth in the event of excessive wear or breakage of the cutting bit.19. The bit holder of claim 18 , wherein:the hard-material element is located on a radially outer region of the holding projection and extends radially outward at least as far as a radially outermost surface of the holding projection.20. The bit holder of claim 18 , wherein:the hard-material element is located on a radially outer region of the holding projection and extends radially outward beyond a radially outermost surface of the holding projection.21. The bit holder of claim 18 , wherein:the hard-material element is located on a radially outer region of the holding projection and is arranged such that the hard-material element is radially set back from a cutting tip of an unworn cutting bit received in the bit receptacle.22. The bit holder of claim 18 , wherein the hard-material element includes a cutting edge.23. The bit holder of claim 22 , ...

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Номер записи: 53
29-01-2015 дата публикации

CUTTER TOOL

Номер: US20150028655A1
Автор: Ball Brett, Clapham William Stephen, Moore Philip Nigel
Принадлежит: ESCO Hydra (UK) Limited

A cutter tool that includes a shank by which the tool is releasably retainable within a tool holder, an enlarged shoulder or heel provided at one end of the shank and adapted, in use, to abut a seating surface of a tool holder and limit the penetration of the tool holder into a receiving aperture of the tool holder, and an integral blade provided beyond the enlarged shoulder or heel and terminating in a carbide or other tip. The tool is provided with a zone of weakness such that if subjected to fracture forces, a fracture will be encouraged to propagate from the zone of weakness in a particular desired manner. 1. A cutter tool comprising:a shank releasably retainable within an aperture in a tool holder;a head fixed to the shank, the head having a tip at one end to contact the material to be engaged during use, and the head being larger than the shank where the head is fixed to the shank to define an interface between the shank and the head such that the head abuts a seating surface of the tool holder and limits the penetration of the cutter tool into the aperture of the tool holder; anda zone of weakness defining a frangible portion at a location other than the interface between the shank and the head, wherein the force required to break the frangible portion when the force is an impact load applied to the tip of the cutter tool is at least about ten percent less than the force required to break the interface between the shank and the head when the force is an impact load applied to the tip of the cutter tool.2. A tool as claimed in which has a front surface claim 1 , a rear surface and side surfaces claim 1 , wherein the front surface faces in the direction of travel when in operation claim 1 , and the zone of weakness is defined by a slot that opens only in the front surface and in the side surfaces to the depth of the slot.3. A tool as claimed in claim 1 , wherein the head includes a blade on a free end and a shoulder between the blade and the shank claim 1 , and ...

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Номер записи: 54
29-01-2015 дата публикации

Bit Holder

Номер: US20150028656A1
Автор: Sollami Phillip
Принадлежит:

An improved bit holder includes a larger bit shank bore and an enlarged upper shank segment or band with a taper of up to 7 degrees per side that provides an interference fit between the top of the shank and top of the bit block bore when the bottom of the bit holder body seats on the top of the bit block bore. An annular tapered void adjacent the bit holder tire portion provides for ease of bit holder extraction. 1. A bit holder body and a generally cylindrical shank depending from the bottom of said bit holder body ,said shank including:an upper portion generally closely subjacent a bottom of said bit holder body, said upper portion including an outer taper surface of up to 7 degrees per side with a central axis of said bit holder.2. The bit holder as defined in wherein a bottom of said bit holder body includes a tire portion having a radially inward outer annular tapered portion adjacent a bottom surface thereof for providing a void for insertion of an extraction tool therein.3. The bit holder as defined in wherein said annular tapered portion is at about a 45 degree angle to said bottom surface of said tire portion.4. The bit holder as defined in wherein a bottom of said bit holder body has a tire portion including a first pair of spatially related parallel undercuts extending inwardly from a bottom of said tire portion claim 1 , said undercuts being a hollow wedge shape the declining terminuses of said ending short of a plane through an axis of said holder.5. The bit holder as defined in further including a second pair of spatially related parallel undercuts positioned opposite a central plane through an axis of said bit holder from said first pair of undercuts.6. The bit holder body as defined in wherein:said axial height of said upper portion is between about ½ inch and ⅞ inch.7. The bit holder body as defined in wherein the outer diameter of said upper tapered shank segment is about 0.000 to 0.003 inches larger than the corresponding outer distal diameter of ...

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Номер записи: 55
01-02-2018 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTION AND METHOD FOR MAKING SAME

Номер: US20180029130A1
Автор: Can Nedret, Fish Michael Lester
Принадлежит:

A polycrystalline diamond construction comprising a body of polycrystalline diamond material is formed of a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, and a non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area. The percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material and the mean of the individual cross-sectional areas of the non-diamond phase pools in the image analysed using an image analysis technique at a selected magnification is less than 0.7, or less than 0.340 microns squared, or between around 0.005 to 0.340 microns squared depending on the percentage of non-diamond phase in the total area of the cross-section of the polycrystalline diamond construction. There is also disclosed a method of making such a construction. 1. A polycrystalline diamond construction comprising a body of polycrystalline diamond material formed of:a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, anda non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area,wherein the percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material is between around 0 to 5%, and the mean of the individual cross-sectional areas of the non-diamond phase pools in an analysed image of a cross-section through the body of polycrystalline material is less than around 0.7 microns squared when analysed using an image analysis technique at a magnification of around 1000 and an image area of 1280 by 960 pixels.2. A polycrystalline diamond construction comprising a body of ...

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Номер записи: 56
29-01-2015 дата публикации

CUTTING DRUM AND METHOD OF DESIGNING A CUTTING DRUM

Номер: US20150032433A1
Автор: Guo Hua, Li Xing Sheng, Sun Yong
Принадлежит:

A method of designing a cutting drum for earth moving equipment is disclosed. The cutting drum has two or more ring segments, each ring segment comprising a plurality of cutting tools, and the rotational position of at least one ring segment is adjustable relative to one or more other ring segment and fixable in the new rotational position. The method involves inputting a plurality of design parameters of a cutting drum into a computer program, performing a computer simulated analysis of the cutting drum using the computer program to determine at least one operational value associated with at least one design objective, using the computer simulated analysis to determine the relative locations of the ring segments that correspond to the at least one design objective, and rotating the or each adjustable ring segment relative to at least one other ring segment so that the relative locations of the ring segments correspond to the at least one design objective. A cutting drum for use with the method is also disclosed. 1. A method of designing a cutting drum for earth moving equipment , the cutting drum comprising two or more ring segments , each ring segment comprising a plurality of cutting tools , and the rotational position of at least one ring segment being adjustable relative to one or more other ring segment and fixable in the new rotational position , the method comprising the steps of:(A) inputting a plurality of design parameters of a cutting drum into a computer program;(B) performing a computer simulated analysis of the cutting drum using the computer program to determine at least one operational value associated with at least one design objective;(C) using the computer simulated analysis to determine the relative locations of the ring segments that correspond to the at least one design objective; and(D) rotating the or each adjustable ring segment relative to at least one other ring segment so that the relative locations of the ring segments correspond to the ...

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Номер записи: 57
02-02-2017 дата публикации

PICK, IN PARTICULAR A ROUND SHAFT PICK

Номер: US20170030191A1
Автор: FRIEDERICHS Heiko, Kammerer Karl
Принадлежит: Betek GmbH & Co. KG

The present invention relates to a pick, in particular, a round shaft pick, having a pick head and a pick shaft, having a support element which has a centring lug on the underside thereof, wherein the centring lug has a centring surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the present invention is disposed in the transition region from the centring surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear. 1. A pick comprising a pick head , a pick shaft , and a support element that includes a protruding centering attachment on its bottom surface , wherein the centering attachmentincludes a centering surface that extends at an angle with respect to the center longitudinal axis of the pick and merges into a seating surface , wherein a circumferential groove is arranged in the transition region from the centering surface to the seating surface , and wherin the depth of the groove in relation to the seating surface is greater than or equal to 0.3 mm.2. The pick as claimed in claim 1 , wherein the centering surface merges tangentially into the top surface of the groove.3. The pick as claimed in claim 1 , wherein the groove has a depth between 0.3 mm and 2 mm in relation to the seating surface.4. The pick as claimed in claim 1 , wherein the ratio of the thickness of a part of the support element receiving the groove to the depth of the groove is at least 2 to 1 and/or wherein the material thickness between the groove and a support surface located opposite the seating surface is at least 2 mm.5. The pick as claimed in claim 1 , wherein the support element has a diameter between 38 mm and 95 mm.6. The pick as claimed in claim 1 , wherein the groove comprises a rounded contour claim 1 , and wherein the radius of the contour lies ...

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Номер записи: 58
04-02-2016 дата публикации

CUTTING LINK FOR MINING CHAIN AND MINING PIN RETENTION SYSTEM

Номер: US20160032722A1
Автор: Crystal Clayton A.
Принадлежит:

An improved cutting link and drive pin retention system for mining chains is disclosed. The cutting link is cast as a single piece instead of multiple parts welded together. The drive pin retention system further decreases the chance that the chain can break due to sheared dowel pins. 1. A cutting link for a mining chain wherein said link comprises:a. a link body having a transverse bore at each longitudinal end and an integral outwardly projecting hub portion having an open bore sized to snugly receive the shank of a tool bit wherein said open bore has an axis disposed in angular relation to the length of said link body; and 'wherein said link body is integrally cast without requiring significant further milling or cutting.', 'b. a shank access gap defined by the space between said projecting hub portion and said link body which opens on one side of the link body and contiguous with said open bore;'}2. The device of wherein said bores are further hardened by induction hardening.3. A retention system for the drive pin of a chain wherein said retention system comprises:a. a drive pin having a pin head disposed at a first end and a fastener end at the second end, wherein said fastener end is configured to receive a retainer cap and has a drive pin hole in the side of said drive pin for interfacing with a locking mechanism of retainer cap;b. said retainer cap having one end configured to receive the fastener end of the drive pin and said locking mechanism for securing said retainer cap to said drive pin.4. The device of wherein said locking mechanism is a rubber sandwich pin or a steel spring configured to interface with said drive pin hole.5. The device of wherein said locking mechanism is a castle nut or Hendrix pin secured by a cotter pin.6. The device of wherein said locking mechanism comprises a dowel pin having at least one notch that is capable of being secured by a c-shaped ring that closes around said notch. The present invention relates to an apparatus for ...

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Номер записи: 59
04-02-2016 дата публикации

Tool

Номер: US20160032723A1
Автор: Abresch Stefan, Hähn Günter, Lehnert Thomas, Lenz Martin
Принадлежит:

A tool for mounting a chisel on a chisel holder, having an actuating member, which has a push-off section, wherein the actuating member can be displaced along a displacement direction. It is possible to simplify changing the chisel if the actuating member can be shifted by an actuating unit. The actuating unit has a draw-in section, which is spaced apart from the push-off section and is arranged transversely with respect to the displacement direction of the actuating member. The actuating member can be power-operated bidirectionally in the displacement direction by the actuating unit. 1. A method of installing a chisel in a chisel holder , comprising:(a) extending an actuating member of a mounting tool through a chisel receptacle bore of the chisel holder;(b) engaging the actuating member with a shank of the chisel; and(c) retracting the actuating member and pulling the chisel shank into the chisel receptacle bore.2. The method of claim 1 , further comprising:during step (a), pushing a worn chisel out of the chisel receptacle bore.3. The method of claim 2 , further comprising:during step (a), supporting a first end of the mounting tool against a first support surface of the chisel holder.4. The method of claim 3 , further comprising:during step (c), supporting a second end of the mounting tool against a second support surface of the chisel holder, the first and second support surfaces of the chisel holder facing each other.5. The method of claim 1 , further comprising:during step (c), supporting an end of the mounting tool against a support surface of the chisel holder.6. The method of claim 1 , further comprising:prior to step (a), inserting the mounting tool into a cavity of the chisel holder, the cavity being communicated with the chisel receptacle bore.7. A method of replacing a chisel in a chisel holder claim 1 , comprising:(a) engaging a mounting and demounting tool with the chisel and the chisel holder;(b) extending an actuating member of the tool in an ...

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Номер записи: 60
01-02-2018 дата публикации

MINERAL WINNING PICK, HOLDER, AND COMBINATION

Номер: US20180030829A1
Автор: Cheyne Mark Alexander, Rickey Jack Charles
Принадлежит:

A pick for mineral winning includes an elongate shank configured to be positioned into a cavity of a holder. A profile is defined on an outside surface of the shaft which includes a first surface formed into the profile and disposed to receive a leveraging device to enable a first forced translational movement of the shaft relative to the holder, and a second surface formed into the profile and disposed to receive the leveraging device to enable a second forced translational movement of the shaft relative to the holder. 1. A pick comprising:a head including a working end for engaging the ground and a mounting end including a bearing surface to set against a corresponding surface on a holder;a shank extending from the mounting end of the head in a first direction for receipt in an opening of the holder; anda plurality of removal features spaced from each other in the first direction, each said removal feature including a removal surface that can be engaged by a tool to apply a force to remove the pick from the holder, wherein at least one of the removal surfaces is in the head between the bearing surface and the working end.2. The pick of wherein the shank has a longitudinal axis extending generally in the first direction claim 1 , and each said removal feature is within a longitudinal extension of the shank.3. The pick of wherein the removal features are positioned successively in a line.4. The pick of wherein the removal features are centered along the longitudinal axis.5. The pick of wherein each said removal feature includes a notch beneath each said removal surface to facilitate engagement of the tool on the removal surface.6. The pick of wherein the removal features are positioned successively in a line.7. The pick of wherein each said removal feature includes a notch beneath the removal surface to facilitate engagement of the tool on the removal surface.8. A pick comprising:a head for engaging the ground;an elongate shank extending outward from the head along ...

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Номер записи: 61
01-02-2018 дата публикации

CONTROLLING AN OUTPUT OF A MINING SYSTEM

Номер: US20180030830A1
Автор: Rimmington Gareth
Принадлежит:

Controlling an output of a mining system. The control includes receiving, at a processor, a first signal associated with a position of the shearer, determining, using the processor, the position of the shearer based on the first signal, receiving, at the processor, a second signal associated with a load of a conveyor, and determining, using the processor, the load of the conveyor based on the second signal. The method further includes determining, using the processor, an output of the mining system based on the position of the shearer and the load of the conveyor and controlling a speed of the shearer based on the output of the mining system. 1. A computer implemented method for controlling operation of a mining system , the mining system including a shearer and a conveyor , the method comprising:determining, using a processor, a position of the shearer based on a first signal from a first sensor, the first signal associated with the position of the shearer;determining, using the processor, a load of the conveyor based on a second signal from a second sensor, the second signal associated with the load of the conveyor;determining, using the processor, an output of the mining system based on the determined position of the shearer and the determined load of the conveyor;generating, using the processor, a first control signal for a first drive mechanism to control a speed of the shearer based on the determined output of the mining system; andgenerating, using the processor, a second control signal for a second drive mechanism to control a speed of the conveyor based on the determined output of the mining system.2. The computer implemented method of claim 1 , further comprising comparing claim 1 , using the processor claim 1 , the output of the mining system to a predetermined threshold claim 1 , and controlling the speed of the shearer based on the comparison of the output to the predetermined threshold.3. The computer implemented method of claim 2 , wherein the ...

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Номер записи: 62
05-02-2015 дата публикации

Underground Mining Tool Packaging with Increased Visibility Feature

Номер: US20150034515A1
Автор: Kozminski Tadeusz, Monyak Kenneth
Принадлежит: Sandvik Intellectual Property AB

Container for tools for excavating and cutting geological formations has a base structure with an interior volume accessible via an opening and a lid connected to the base structure to close the opening. A visibility enhancing feature is incorporated into one or more of the lid and the base structure, the visibility enhancing feature based on luminescence or reflectance. A kit including the container and methods of illuminating a portion of an underground mine and of identifying a tool located in an underground mine are also disclosed. When placed in an underground mine and irradiated or illuminated, visible electromagnetic radiation associated with the visibility enhancing feature can illuminate a structure of the underground mine, illuminate a content of the container and/or be an indicia of the tool stored in the container. 1. A container for tools for excavating and cutting geological formations , the container comprising:a base structure including a bottom and one or more side walls joined to define an interior volume accessible via an opening;a lid connected to the base structure to close the opening, the lid including a first surface and a second surface, wherein when the lid closes the opening, the first surface faces the interior volume and the second surface forms a part of an exterior of the container; anda visibility enhancing feature incorporated into one or more of the lid and the base structure, the visibility enhancing feature based on luminescence or reflectance.2. The container of claim 1 , wherein the visibility enhancing feature is based on luminescence from a first thermoplastic composition comprising at least one thermoplastic resin and a first phosphor claim 1 , andwherein one or more of the lid and a portion of the base structure are formed from the first thermoplastic composition.3. The container of claim 2 , wherein visible electromagnetic radiation emitted by the first phosphor of the first thermoplastic composition forming the lid is ...

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Номер записи: 63
01-05-2014 дата публикации

Cutting tip and cutting bit having increased strength and penetration capability

Номер: US20140117740A1
Автор: Fader Joseph, LAMMER Alfred
Принадлежит: Sandvik Intellectual Property AB

A profile of a cutting tip includes a convex portion extending from a cutting end to an inflection point located at an axial and radial distance from the cutting end. A concave portion extends from the inflection point to a point at a greater radial and axial distance from the cutting end. The profiles of the generally concave portion and the generally convex portion have a first linear portion defined by a portion of a first line extending from a first point at a first radial position to a second point at a second radial position and axially spaced from the first point. A second linear portion is defined by a portion of a second line extending from a third point to a fourth point at the second radial position and at an axial distance from the second point corresponding to about half a length of the first line. 1. A cutting tip having a conical body substantially rotationally symmetric about a center axis and having a profile in a longitudinal section through the center axis , the profile comprising:a generally convex portion extending from a cutting end situated on the center axis, to an inflection point located at an axial and radial distance from the cutting end, towards a base portion of the body; anda generally concave portion extending from the inflection point to a point located at a greater radial and axial distance from the cutting end and axially closer to the base portion, wherein the profile of at least one generally concave portion and the generally convex portion include a first linear portion, defined by a portion of a first line, the first line extending from a first point at a first radial position, at an angle of about 45 degrees relative to the center axis, to a second point at a second radial position and axially spaced from the first point, and a second linear portion defined by a portion of a second line, the second line extending from a third point, forming an approximate middle point of the first line, to a fourth point at the second radial ...

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Номер записи: 64
01-05-2014 дата публикации

Chisel Holder For A Soil Treatment Machine

Номер: US20140117741A1
Автор: Cyrus Barimani, Günter Hähn, Karsten Buhr, Thomas Lehnert
Принадлежит: WIRTGEN GMBH

The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.

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Номер записи: 65
05-02-2015 дата публикации

PICK TOOL AND ASSEMBLY COMPRISING SAME

Номер: US20150035342A1
Автор: Fries Robert, Jonker Cornelis Roelof, Lachmann Frank Friedrich, Ries Bernd Heinrich
Принадлежит:

A pick tool comprising a super-hard strike tip, a base and a unitary cemented carbide support body comprising a head portion including an overhang portion, and an insertion shaft extending from the head portion, a surface of the overhang portion extending laterally from the insertion shaft; the strike tip is attached to the head portion of the support body and the base is provided with a bore into which the insertion shaft is shrink fitted; the base has an external surface adjacent the bore and overhang portion of the head portion is configured to extend over at least an area of the external surface operative to shield the area from wear when in use. 1. A pick tool comprising a super-hard strike tip , a steel base and a unitary cemented carbide support body comprising a head portion including an overhang portion , and a cylindrical insertion shaft having a volume of at least 15 cubic centimetres (cm) , a length of at least 2 centimetres (cm) , and extending from the head portion; the strike tip being attached to the head portion and the base being provided with a bore into which the insertion shaft is shrink fitted , and having an external surface adjacent the bore; in which the support body comprises of cemented carbide material comprising 5 to 10 weight per cent binder material comprising cobalt , and tungsten carbide grains having a mean size of 1 to 6 microns; and the overhang portion is configured to extend radially over at least an area of the external surface a distance of more than 5 per cent of the mean diameter of the bore , operative to shield the area from wear when in use.2. (canceled)3. (canceled)4. (canceled)5. A pick tool as claimed in claim 1 , in which the base comprises a shank configured for coupling the pick tool non-rotatably to a tool carrier drum.6. A pick tool as claimed in claim 1 , for road milling or mining.7. A pick tool as claimed in claim 1 , in which the super-hard material is polycrystalline diamond (PCD) material.8. A pick tool as ...

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Номер записи: 66
05-02-2015 дата публикации

Insert with offset apex for a cutter bit and a cutter bit having the same

Номер: US20150035343A1
Автор: Randall Walter Ojanen
Принадлежит: Kennametal Inc

A non-rotatable cutter bit for mining and construction operations having a central longitudinal axis extending therethrough includes an insert at one end. The insert has a central longitudinal axis and the apex is offset from the central longitudinal axis to provide an elongated rake face. With the insert mounted within the cutter body, the central longitudinal axis of the cutter body intersects with the apex such that the cutter body may be easily exchanged with conventional cutter bodies. The insert may also be mounted directly to the body without using an insert holder. The insert also has applications in oil and gas drilling operations.

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Номер записи: 67
05-02-2015 дата публикации

Pick Tool with a Removable Shank

Номер: US20150035344A1
Автор: Brown Braeden, Hall David R., Leany Francis E., Spence Benjamin J., Wahlquist David C.
Принадлежит:

Pick tool assemblies for use with formation degradation machines, such as road milling, mining, trenching or drilling machines, may be disposed on rotatable drums, wheels, continuous chains, drill bits or the like and brought into engagement with such formations as rock, asphalt, coal or concrete to break up or otherwise degrade the formations. Such pick tool assemblies may comprise a shank comprising a forward end and a rearward end wherein the rearward end may be formed for retention in a bore of a block attached to a driving mechanism and the forward end may comprise a body detachably and nonrotatably fastened thereto. Further, an impact tip may be bonded opposite the rearward end. 1. A pick tool assembly , comprising:a shank comprising a forward end and a rearward end;the rearward end formed for retention in a bore of a block attached to a driving mechanism;the forward end comprising a body detachably and nonrotatably fastened thereto; andan impact tip bonded opposite the rearward end.2. The pick tool assembly of claim 1 , wherein the impact tip is bonded to the forward end.3. The pick tool assembly of claim 2 , wherein the forward end is disposed within a cavity passing completely through the body.4. The pick tool assembly of claim 1 , wherein the impact tip is bonded to the body.5. The pick tool assembly of claim 4 , wherein the forward end is disposed within a socket of the body.6. The pick tool assembly of claim 5 , wherein the body comprises a radial flange disposed adjacent the socket that transfers forces to an outer shelf disposed around an exterior of the forward end.7. The pick tool assembly of claim 5 , wherein the forward end is press fit within the socket of the body.8. The pick tool assembly of claim 7 , wherein the forward end is hollow to aid in the press fit.9. The pick tool assembly of claim 7 , wherein the forward end is slotted to aid in the press fit.10. The pick tool assembly of claim 7 , wherein the forward end is tapered to aid in the ...

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Номер записи: 68
04-02-2021 дата публикации

CUTTING ASSEMBLY

Номер: US20210032988A1
Автор: KANYANTA VALENTINE, LEEMING MATTHEW JOHN IAN, Saridikmen Habib, VERMEULEN ADRIAAN
Принадлежит:

This disclose relates to a cutting assembly () for mining comprising a disk cutter (), which is moveable between horizontal and vertical cutting orientations. 1. A cutting assembly for a rock excavation machine comprising:a base unit,one or more moveable support arms extending from the base unit,a drive spindle rotatably mounted to the or each moveable support arm,a disk cutter fixed about the drive spindle such that rotation of the drive spindle causes a corresponding rotation of the disk cutter,the disk cutter comprising a cutter body and one or more cutting elements arranged peripherally around the cutter body,wherein the or each support arm is configured to be moveable into first and second cutting orientations, in which in the first cutting orientation the drive spindle is horizontal and in which in the second cutting orientation the drive spindle is vertical.2. The cutting assembly as claimed in claim 1 , in which a pair of spaced apart support arms is provided.3. The cutting assembly as claimed in claim 1 , in which the or each support arm is moveable between a first operative position and a second operative position claim 1 , in each of the first and second cutting orientations claim 1 , according to the depth of cut required.4. The cutting assembly as claimed in claim 2 , in which each support arm comprises a first arm portion connected to a second arm portion by a joint claim 2 , each first and second arm portion being independently moveable relative to each other.5. The cutting assembly as claimed in claim 1 , in which a plurality of disk cutters are arranged on the drive spindle.6. The cutting assembly as claimed in claim 5 , in which the plurality of disk cutters are regularly spaced apart along the length of the drive spindle.7. The cutting assembly as claimed in claim 6 , in which the plurality of disk cutters are spaced apart by a gap measuring between 10 cm and 50 cm.8. The cutting assembly as claimed in claim 6 , in which the gap between adjacent ...

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Номер записи: 69
09-02-2017 дата публикации

MILLING CUTTING ELEMENT SYSTEM

Номер: US20170037724A1
Автор: Latham Winchester E.
Принадлежит:

A cylindrical cutting system, a bit holder assembly, and machine for milling or scarifying road surfaces are disclosed. A bit holder is attachable to a milling platform, and includes an inward facing surface for engaging a corresponding mating surface of the milling platform. The inward facing surface of the bit holder and the mating surface include aligning fastener and pin openings. A fastener and a pin are inserted within the respective openings to couple the bit holder to the milling platform. The mating surface may define a part of a recess formed in the milling platform. A wear element may be disposed at the leading side of the bit holder. Multiple platforms may be coupled together with axially extended platform fasteners. 1. A cutting system , comprising:a milling platform rotatable about an axis, the milling platform including a circumferential outer surface defined about the axis, and a mating surface on the outer surface, the mating surface including a fastener base opening and a pin base opening; anda bit holder including a cutter bit, the bit holder having a radially inward facing surface engaging the corresponding mating surface of the milling platform, the radially inward facing surface including a fastener bit holder opening in alignment with the corresponding fastener base opening of the milling platform to receive a fastener, and a pin bit holder opening in alignment with the corresponding pin base opening of the milling platform to receive a pin, wherein the fastener and the pin removably couple the bit holder to the milling platform.2. The system of claim 1 , wherein the milling platform includes a planar surface formed in the outer surface to define the mating surface.3. The system of claim 1 , wherein the milling platform includes a recess formed in the outer surface claim 1 , the recess being defined by a leading recess edge claim 1 , a lagging recess edge claim 1 , and a mating surface interconnecting the leading recess edge and the lagging ...

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Номер записи: 70
16-02-2017 дата публикации

ATTACK INSERTS WITH DIFFERING SURFACE FINISHES, ASSEMBLIES, SYSTEMS INCLUDING SAME, AND RELATED METHODS

Номер: US20170043452A1
Автор: Daniels Grant Kyle, Marx John Christian, Spencer Jarid Lynn, Wood Jeremy Dane
Принадлежит:

A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface. 1. A superabrasive element comprising:a substrate; and a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table; and', 'an unpolished surface having an unpolished finish, the unpolished surface surrounding a majority of the polished surface., 'a superabrasive table bonded to the substrate, the superabrasive table comprising2. The superabrasive element according to claim 1 , wherein at least a portion of the unpolished surface of the superabrasive table is substantially conical.3. The superabrasive element according to claim 1 , wherein at least a portion of the unpolished surface of the superabrasive table is non-planar.4. The superabrasive element according to claim 3 , wherein at least a portion of the unpolished surface of the superabrasive table is substantially arcuate and concave.5. The superabrasive element according to claim 3 , wherein at least a portion of the unpolished surface of the superabrasive table is substantially arcuate and convex.6. The superabrasive element according to claim 1 , wherein the central claim 1 , apical region is domed.7. The superabrasive element according ...

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Номер записи: 71
15-02-2018 дата публикации

Locking device for securing a wear member

Номер: US20180044894A1
Автор: Joan Tuto, Jorge TRIGINER BOXIEDA, Justo ORTIZ GARCIA
Принадлежит: Metalogenia Research and Technologies SL

Locking device for securing a wear part ( 1 ) on a support ( 2 ) for excavators and similar machines, the locking device that comprises a locking element ( 20 ), with a locking end, a thread ( 40 ), and at least one helical spring ( 30 ) defining a longitudinal axis, where the spring ( 30 ) is at least partially threaded in the thread ( 40 ). The support ( 2 ) comprises a housing ( 12 ) and the wear part ( 1 ) comprises an orifice ( 11 ) so that, in a mounted position, the housing ( 12 ) and the orifice ( 11 ) are at least partially overlapped, where the locking device is able to be introduced in the housing ( 12 ), where, in the mounted position, the locking end at least partially emerges from the housing ( 12 ) and penetrates into the orifice ( 11 ).

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Номер записи: 72
13-02-2020 дата публикации

BLOCK POSITIONING TOOL

Номер: US20200047294A1
Автор: "DAscanio Valerio E.", Cesari Marco, CIARDULLO DANILO, Sansone Dario, Virgi Prasad S.
Принадлежит: Caterpillar Paving Products Inc.

A tool for positioning a block on a milling drum having a plurality of welded blocks thereon is provided. The tool includes a longitudinal body. The tool also includes a plurality of arm members extending from the longitudinal body. Each of the plurality of arm members includes a fixture body provided at a distal end thereof. The tool further includes a plurality of fixture assemblies coupled to the fixture body of the corresponding arm member. The plurality of fixture assemblies are adapted to be coupled with corresponding welded blocks of the plurality of welded blocks. Further, at least one of the plurality of arm members and the corresponding fixture assembly coupled to the at least one of the plurality of arm members are adapted to position the block at a desired position on the milling drum relative to the plurality of welded blocks. 1. A tool for positioning a block on a milling drum having a plurality of welded blocks thereon , the tool comprising:a longitudinal body;a plurality of arm members extending from the longitudinal body, wherein each of the plurality of arm members includes a fixture body provided at a distal end thereof;a plurality of fixture assemblies coupled to the fixture body of the corresponding arm member, the plurality of fixture assemblies being adapted to be coupled with corresponding welded blocks of the plurality of welded blocks,wherein at least one of the plurality of arm members and the corresponding fixture assembly coupled to the at least one of the plurality of arm members are adapted to position the block at a desired position on the milling drum relative to the plurality of welded blocks.2. The tool of claim 1 , wherein the tool is adapted for positioning the block on at least one of a left hand spiral block arrangement of the milling drum and a right hand spiral block arrangement of the milling drum.3. The tool of claim 1 , wherein the tool is adapted to extend along at least one of a single spiral and multiple spirals of the ...

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Номер записи: 73
26-02-2015 дата публикации

TOOTH AND RETAINER

Номер: US20150054332A1
Автор: Latham Winchester E.
Принадлежит:

A milling drum adapted to be rotated in a cutting direction about an axis defined by the cylindrical surface of the drum. A plurality of pairs of overlapping recesses in the cylindrical surface of the drum. A tooth or cutting bit with a base configuration matching a first of the pair of the overlapping recesses, and a lower portion of a side surface including a retainer engagement feature. A retainer has a base configuration matching a second of the pair of overlapping recesses, and a side surface including a tooth engagement feature. A fastener secures the retainer in the second of the overlapping recesses so that the tooth engagement feature of the retainer engages the retainer engagement feature of the tooth or cutting bit to hold the tooth or cutting bit in the first of the overlapping recesses. 1. A combination of a cylindrical surface of a milling drum , adapted to be rotated in a cutting direction about an axis concentric to the cylindrical surface and additional apparatus , the combination comprising:a plurality of pairs of overlapping recesses in the cylindrical surface;a tooth or cutting bit having a base configuration matching a first of the pair of the overlapping recesses, and a lower portion of a side surface including an retainer engagement feature;a retainer having a base configuration matching a second of the pair of overlapping recesses, and a side surface including a tooth engagement feature; anda fastener securing the retainer in the second of the pair of overlapping recesses so that the tooth engagement feature of the retainer engages the retainer engagement feature of the tooth or cutting bit.2. The combination of claim 1 , wherein each of the pairs of overlapping recesses includes side surfaces that are parallel to each other.3. The combination of claim 1 , wherein the retainer engagement feature on the lower portion of a side surface of the tooth comprises an inclined planar surface facing outwardly relative to the drum cylindrical surface.4. ...

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Номер записи: 74
25-02-2021 дата публикации

TOOL HOLDER INSTALLATION DEVICE AND SYSTEM

Номер: US20210054740A1
Автор: Johnson Nicholas B., Magee Kevin J.
Принадлежит: Caterpillar Paving Products Inc.

A tool holder insertion device includes a frame extending from a proximal end to a distal end, the frame including first and second longitudinal arms extending between the distal end and the proximal end. The frame also includes a distal transverse arm connected to respective distal ends of the first and second longitudinal arms, a proximal transverse arm opposite the distal transverse arm, and an internal space extending from the distal transverse arm, the internal space forming an insertion opening. The tool holder insertion device also includes a drive assembly fixed to the frame, the drive assembly including a pushing surface that is movable within the internal space toward the distal end of the frame. 1. A tool holder insertion device , comprising: first and second longitudinal arms extending between the distal end and the proximal end;', 'a distal transverse arm connected to respective distal ends of the first and second longitudinal arms;', 'a proximal transverse arm opposite the distal transverse arm; and', 'an internal space extending from the distal transverse arm, the internal space forming an insertion opening; and, 'a frame extending from a proximal end to a distal end, the frame includinga drive assembly fixed to the frame, the drive assembly including a pushing surface that is movable within the internal space toward the distal end of the frame.2. The device of claim 1 , wherein the internal space is approximately rectangular and the drive assembly is provided at a proximal end of the internal space.3. The device of claim 1 , wherein the drive assembly extends through the insertion opening.4. The device of claim 1 , wherein the first and second longitudinal arms claim 1 , the proximal transverse arm claim 1 , and the distal transverse arm define and enclose the internal space.5. The device of claim 4 , wherein the drive assembly is fixed to the proximal transverse arm.6. The device of claim 4 , wherein the first and second longitudinal arms claim 4 , ...

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Номер записи: 75
13-02-2020 дата публикации

SHEARING SYSTEM FOR LONGWALL MINING

Номер: US20200049004A1
Автор: Kirkhope Euan Russell
Принадлежит: CATERPILLAR GLOBAL MINING EUROPE GMBH

A shearing system includes a pan line having an end stop, a gate end, and a set of consecutively arranged pans extending from the gate end and having one or more pans disposed beyond the end stop. A shearer is stoppable at the end stop, includes a shearer arm, and is positioned on the one or more pans when the shearer arm is disposed between the end stop and the gate end. A first sensor detects an orientation of the shearer, while second sensors detect an orientation of the set of consecutively arranged pans. A control system determines a profile of the pan line between the end stop and the gate end and controls a movement of the shearer arm based on the profile of the pan line when the shearer arm is disposed between the end stop and the gate end. 1. A shearing system for longwall mining , the shearing system comprising:a pan line defined by a plurality of interconnected pans, the pan line including an end stop, a gate end, and a set of consecutively arranged pans extending from the gate end and having one or more pans disposed beyond the end stop, away from the gate end; a shearer arm configured to be moved to remove mine material from a mine face, wherein the shearer is positioned on the one or more pans when the shearer arm is disposed between the end stop and the gate end; and', 'a first sensor configured to detect an orientation of the shearer;, 'a shearer moveable on and along the pan line and configured to stop at the end stop, the shearer includinga set of second sensors each configured to detect an orientation of a pan of the set of consecutively arranged pans; and determine a profile of the pan line between the end stop and the gate end based on the orientation of one or more pans of the set of consecutively arranged pans and the orientation of the shearer when the shearer arm is disposed between the end stop and the gate end; and', 'control a movement of the shearer arm based on the profile of the pan line when the shearer arm is disposed between the end ...

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Номер записи: 76
22-02-2018 дата публикации

SCANNING ELECTROCHEMICAL MICROSCOPY WITH OSCILLATING PROBE TIP

Номер: US20180052187A1
Автор: McKelvey Kim MArtin, Unwin Patrick
Принадлежит:

A new scanning electrochemical microscopy tip positioning method that allows topography and surface activity to be resolved independently is presented. A SECM tip is oscillated relative to the surface of interest. Changes in the oscillation amplitude, caused by the intermittent contact of the SECM tip with the surface of interest, are used to detect the surface of interest, and as a feedback signal for various types of imaging. 1. A method comprising:oscillating, using a piezoelectric positioner, a scanning microscopy probe tip in height relative to a surface of interest;detecting damping of an amplitude of the oscillation of the probe tip by detecting a decrease in the amplitude of the oscillation of the probe tip as compared to an amplitude of oscillation of the probe tip in a bulk solution, the decrease in the amplitude of the oscillation of the probe tip indicating intermittent contact with the surface of interest;using the detected decrease in the amplitude to detect the surface of interest; andusing the probe tip to measure or modify activity of the surface of interest simultaneously with detecting damping.2. A method as claimed in claim 1 , comprising detecting the decrease in the amplitude of the oscillation of the probe tip during an approach curve measurement.3. A method as claimed in claim 2 , comprising terminating the approach curve measurement when intermittent contact is detected.4. A method as claimed in claim 2 , comprising terminating the approach curve measurement on detecting a decrease in sensor tip oscillation amplitude as compared to oscillation amplitude in a reference medium.5. A method as claimed in claim 2 , comprising terminating the approach curve measurement on detecting a decrease of between 0.5% and 15% in sensor tip oscillation amplitude as compared to oscillation amplitude in a reference medium.6. A method as claimed in claim 2 , comprising terminating the approach curve measurement on detecting a decrease of about 5-10% in tip ...

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Номер записи: 77
04-03-2021 дата публикации

SELF-ALIGNING ADAPTER BLOCK

Номер: US20210062652A1
Автор: GEYER James R., Helsel Eric P., MOUTHAAN Daniel J.
Принадлежит:

Mounting assemblies for cutting tools are disclosed that include a base and an adapter block. Mounting assemblies are provided with self-fixturing features to provide a desired mounting position and to restrict movement of the adapter block with respect to the base prior to bonding. The self-fixturing features provide the ability to perform repeatable and consistent bonding of the adapter block to the base. 1. A mounting assembly for a cutting tool comprising:a base comprising a holder receiving surface including at least one planar intersection and a front planar intersection; and an adapter block body having a top surface and a mounting surface;', 'at least one alignment protrusion tab extending from the mounting surface structured and arranged to engage the at least one planar intersection of the base; and', 'at least one alignment tab extending from the mounting surface structured and arranged to engage the front planar intersection of the base,, 'an adapter block, the adapter block comprisingwherein the front planar intersection is a mounting groove recessed in the holder receiving surface and extends from a front edge of the holder receiving surface to a clearance opening.2. The mounting assembly for a cutting tool of further comprising a first planar intersection extending from a first side edge of the holder receiving surface to the clearance opening claim 1 , a second planar intersection extending from the clearance opening to a second side edge of the holder receiving surface.3. The mounting assembly for a cutting tool of claim 1 , wherein the holder receiving surface comprises a first mounting region extending from a rear edge of the holder receiving surface of the planar intersection claim 1 , and a second mounting region extending from the planar intersection to a front edge of the holder receiving surface.4. The mounting assembly for a cutting tool of claim 3 , wherein the first mounting region comprises a first rear planar face and a second rear ...

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Номер записи: 78
22-05-2014 дата публикации

Tips for pick tools and pick tools comprising same

Номер: US20140139008A1
Автор: Cornelis Roelof Jonker, Matthew Alan SANAN
Принадлежит: Individual

Tips for pick tools and pick tools comprising same are provided. The tip comprises an impact structure formed joined at a non-planar boundary surface of a substrate. The boundary surface includes a depression. The impact structure comprises super-hard material and has a working end including an apex opposite the depression. The boundary surface of the substrate comprises a ridge at the periphery of the depression and a generally tapered circumferential region depending away from the ridge towards a side of the tip, a lowest point of the depression being directly opposite the apex.

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Номер записи: 79
12-03-2015 дата публикации

Cutting Bit Retaining Assembly

Номер: US20150069816A1
Автор: FADER Joe, VOITIC Hannes
Принадлежит:

A cutting bit retaining assembly for mounting a cutting bit at a cutting machine includes a holder body having a through bore to receive a bit shaft. A retainer acts against the holder body and bit shaft and includes a first and second abutment member that provides a reliable and constant locking force between the body and the shaft. 1. A cutting bit retaining assembly for mounting a cutting bit at a cutting machine , the assembly comprising:a holder body having a through bore extending between a forward and a rearward end of the body;a bit shaft attached to the bit head, the bit shaft extending axially through the bore, a rearward region of the bit shaft projecting from the rearward end and including an abutment portion; anda retainer positioned about the rearward region of the shaft to releasably retain the shaft at the body, the retainer having a first and a second abutment member spaced apart in the axial direction of the bore and coupled so as to be resilient to axial compression together, wherein the first abutment member contacts the rearward end of the body and the second abutment member contacts the abutment portion of the shaft to provide a retaining force under compression to retain the shaft at the body.2. The assembly as claimed in claim 1 , wherein the retainer includes a wedge shaped configuration claim 1 , the first and second abutment members being attached at respective first ends such that opposed respective second ends of the abutment members are resistant to compression together.3. The assembly as claimed in claim 1 , wherein the retainer includes a single unitary body having a bent or folded region such that the first member and the second member project from the bent or folded region at an acute angle relative to one another.4. The assembly as claimed in claim 3 , wherein the first and second members include a respective recess having a size to allow the retainer to be positioned over and about an external surface of the shaft at the rearward ...

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Номер записи: 80
17-03-2022 дата публикации

Mineral Bit and Cutting Tip Therefor

Номер: US20220082016A1
Автор: ZAAYMAN Oswald D.
Принадлежит:

Provided is a mineral bit and cutting tip therefor. The mineral bit is configured to penetrate geological materials in a dig face to effectively process the same. The mineral bit includes various geometric constraints to increase structural integrity and penetration capability. The cutting tip may have increased durability and may be self-sharpening. 1. A mineral bit for use during excavation and mining operations , the mineral bit having a front region and an opposite rear region , the bit further comprising:a head portion;a mounting portion secured to the head portion and configured to be releasably retained by a mount;a rounded transition disposed in the front region of the bit between the head portion and the mounting portion and configured to provide a clearance between the head portion and the mount when the mounting portion is releasably retained by the mount;a rear shoulder surface disposed on the head portion in the rear region of the bit and configured to interface with the mount when the mounting portion is releasably retained by the mount;the mounting portion having a front face, an opposite rear face, and side faces therebetween; a leading edge connected to the rounded transition and extending away from the mounting portion at first angle with respect to the front face of the mounting portion, the leading edge being configured to releasably retain a cutting tip;', 'a top face opposite the interface between the mounting portion and the head portion, and extending between a distal end of the leading edge and the rear shoulder, wherein the top face includes first and second surfaces connected by a rounded transition section, the first surface extending from the distal end of the leading edge to the transition section, the second surface extending from the transition section to the shoulder; and', 'first and second side faces each extending from the interface to the upper face., 'the head portion further comprising2. The bit of claim 1 , wherein the first ...

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Номер записи: 81
27-02-2020 дата публикации

TAPERED CUTTER BIT AND MOUNTING BLOCK FOR THE SAME

Номер: US20200063555A1
Автор: Latham Winchester E.
Принадлежит:

A cutter bit adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine is provided. The body of the cutter bit is generally formed of a hardened steel, the cutting surface may be a diamond composition fixed in a step in the upper end of the cutter bit. The cutter bit includes a cutting surface, and the cutting surface may include non-parallel side edges and an upper cutting edge parallel to a lower edge. The lower edge may be any length sufficient to inhibit unintended angular displacement of the cutting surface during operation of the working surface. Alternatively or in addition, the cutting surface may be defined by three edges to allow the cutting surface to be removed and repositioned in at least a second orientation. 1. A cutter bit comprising:an elongated body adapted to be fixed to a working surface of a rotating drum of a milling, planing, mining or reclaiming machine, the elongated body comprising:a front surface;a back surface obverse to the front surface; anda cutter element comprising polycrystalline diamond, the cutter element independently coupled with an upper end of the front surface of the elongated body, the cutter element including a front planar surface positioned to face away from the front surface of the elongated body and extending toward a lower end of the front surface of the elongated body, a perimeter of the front planar surface defined by three edges including an upper cutting edge, and at least a portion of each of the three edges being linear.2. The cutter bit of claim 1 , wherein the front surface is formed to include a cavity claim 1 , and the three edges further include a first side edge and a second side edge claim 1 , the first side edge and the second side edge linearly extending to form a tip claim 1 , the tip positioned within the cavity.3. The cutter bit of claim 1 , wherein the three edges further include a first side edge and a second side edge claim 1 , wherein the ...

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Номер записи: 82
19-03-2015 дата публикации

CUTTING BIT AND BIT ASSEMBLY

Номер: US20150076894A1
Автор: FADER Joe, VOITIC Hannes
Принадлежит:

A cutting bit and bit assembly for mounting at a cutting machine. The bit includes an axially tapered bit body having a recess extending axially within the body. The recess has an innermost region and a mouth region that is generally convex and/or tapered radially outward to abut a corresponding concave or tapered surface of a projection to secure the cutting bit at a holder body. An annular step is positioned within the recess at the mouth region to prevent dust and contaminant fluid or particles from passing axially into the recess. 1. A cutting bit for mounting at a cutting machine comprising:an axially tapered bit body having a forward end providing a cutting tip and a rearward end for mounting at a bit holder;a recess extending axially within the body from the rearward end, the recess having an innermost region and a mouth region located substantially at the rearward end, the recess being defined axially by a radially inward facing annular surface;{'b': '103', 'a groove projecting radially outward into the body from the recess at an axial position between the innermost region and the mouth region, wherein the radially inward facing surface includes a section that is generally convex and tapered radially outward at an axial position between the groove and rearward end to abut a corresponding concave or tapered surface of a projection to secure the cutting bit at a holder body (); and'}an annular step positioned within the recess at the mouth region axially between the section and the rearward end, the step being defined by a convex mouth surface that is an axially rearward part of the section and that terminates axially at the step and an annular entrance surface extending axially forward from the rearward end and aligned transverse or perpendicular to the mouth surface.2. The bit as claimed in claim 1 , wherein a radius of the surface at the section is greater than or equal to a fifth of a distance from the rearward end of the body to an axially forwardmost ...

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Номер записи: 83
05-06-2014 дата публикации

ARRANGMENT FOR FIXING A CUTTER

Номер: US20140152074A1
Автор: Gerer Roman, Grief Raif
Принадлежит: Sandvik Mining and Construction G.m.b.H.

An arrangement for fixing a pick to a cutting tool of a cutting machine includes a pick holder and a rotationally symmetrical pick sleeve, which is detachably fixed against an axial stop by surface pressure in a conical receiving element of the pick holder. The pick sleeve has an axial length that is greater than the axial length of the receiving element of the pick sleeve. A part of the pick sleeve that protrudes with respect to the edge of the receiving element when fixed has, on the outer diameter thereof, a conical bevel, which is inclined inwards. 1. An arrangement for fixing a pick to a cutting tool of a cutting machine , comprising:a pick holder; anda rotationally symmetrical pick sleeve is detachably fixed against an axial stop by surface pressure in a conical receiving element of the pick holder, the pick sleeve having an axial length which is greater than an axial length of the receiving element of the pick sleeve, wherein a part of the pick sleeve protrudes with respect to an edge of the receiving element when fixed, the part exhibiting at its outer diameter a conical bevel which is inclined inwards.2. An arrangement for fixing of a pick according to claim 1 , wherein an inclination angle of the bevel against a generating line of an outer casing of the pick sleeve is between 15° and 30° claim 1 , preferably 23°.3. An arrangement for fixing of a pick according to claim 1 , wherein the conical bevel begins at the position of the pick sleeve when it is in contact against the axial stop claim 1 , directly at the edge of the receiving element.4. An arrangement for the fixing of a pick according to claim 1 , wherein a surface pressure between the receiving element and the pick sleeve is constantly adjusted over the entire axial length of the receiving element claim 1 , and amounts to at least 150 N/mm2.5. An arrangement for the fixing of a pick according to claim 1 , wherein the pick holder includes a hole claim 1 , opening into the receiving element claim 1 , ...

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Номер записи: 84
17-03-2016 дата публикации

Chisel Holder

Номер: US20160076370A1
Автор: Barimani Cyrus, Buhr Karsten, Diessner Bernhard, Hähn Günter, Kammerer Karl, Lehnert Thomas, Roth Markus
Принадлежит:

The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side. 1. A tool system for an earth working machine , comprising:a base part including an insertion receptacle, two first support surfaces at a non-parallel angle to one another, and two second support surfaces at a non-parallel angle to one another and to the first support surfaces; and an insertion projection received in the insertion receptacle of the base part; and', two first bearing surfaces at a first angle to one another, the two first bearing surfaces diverging from the insertion projection side toward the working side, each of the first bearing surfaces engaging a respective one of the first support surfaces; and', 'two second bearing surfaces at a second angle to one another, the two second bearing surfaces diverging from the insertion projection side toward the working side, each of the second bearing surfaces engaging a respective one of the second support surfaces., 'a support member having an insertion projection side and a working side, the insertion projection extending from the insertion projection side, the working side facing away from the insertion projection, the support member including], 'a tool apparatus including2. The tool system of claim 1 , wherein:the insertion receptacle of the base part extends downwardly relative to the support surfaces;the support surfaces of the base part all ...

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Номер записи: 85
17-03-2016 дата публикации

SERVICE TOOL FOR CUTTING BIT ASSEMBLY

Номер: US20160076371A1
Автор: "ONeill Michael L.", Arnold Randy W.
Принадлежит:

A tool includes an actuator assembly, a rod, a first nut, and a second nut. The actuator assembly includes a cylinder, a ram, and a bore extending through the cylinder and the ram. The cylinder includes an internal chamber supporting the ram, a first end, a second end, and a reaction surface positioned proximate the first end. The ram is movable relative to the cylinder and positioned adjacent the second end of the cylinder. The rod extends through the bore of the actuator assembly. The first nut is selectively coupled to one of a first end of the rod and a second end of the rod, and defines a first dimension larger than the bore width of the bit block. The second nut is selectively coupled to the other of the first end of the rod and the second end of the rod, and defines a second dimension less than the bore width. 1. A tool for installing and removing a bit sleeve with respect to a bore of a bit block , the bit sleeve including a shank and a bore for receiving a bit , the bit block bore defining a bore width , the tool comprising:an actuator assembly including a cylinder and a ram, the cylinder including an internal chamber supporting the ram and configured to be in fluid communication with a fluid source, the cylinder including a first end, a second end, and a reaction surface positioned proximate the first end, the reaction surface configured to contact an end of the sleeve, the ram movable relative to the cylinder and positioned adjacent the second end of the cylinder, the actuator assembly including a bore extending through the cylinder and the ram;a rod including a first end and a second end, the rod defining a rod axis extending between the first end and the second end, the rod extending through the bore of the actuator assembly, a portion of the rod configured to extend through the bore of the bit sleeve such that the first end is positioned adjacent an end surface of the shank, the second end of the rod positioned adjacent the ram;a first nut selectively ...

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Номер записи: 86
15-03-2018 дата публикации

PICK HAVING A SUPPORTING ELEMENT WITH A CENTERING EXTENSION

Номер: US20180073359A1
Автор: FRIEDERICHS Heiko, KRAEMER Ulrich
Принадлежит: Betek GmbH & Co. KG

A round-shank pick having a pick head and a pick shank that includes a supporting element pierced along its longitudinal center axis by a mounting hole with an inside diameter for receiving the pick shank. A collar height, measured in the direction of the longitudinal center axis between an end, facing away from the seat surface, of the centering extension and the seat surface or between the end of the centering extension and an inner termination of a recess that is integrally formed in the supporting element in an indented manner with respect to the seat surface, is configured such that the ratio between the inside diameter of the mounting hole in the supporting element and the collar height is less than 8, and/or that the collar height is greater than an axial clearance of the pick mounted in a pick holder. 1. A round-shank pick comprising a pick head and a pick shank that includes a supporting element with a seat surface on its underside and a centering extension that projects beyond the seat surface , wherein the centering extension has a centering surface that extends in an inclined manner with respect to a longitudinal center axis of the pick and transitions indirectly or directly into the seat surface , and wherein the supporting element is pierced along the longitudinal center axis by a mounting hole with an inside diameter for receiving the pick shank ,wherein a collar height, measured in the direction of the longitudinal center axis between an end, facing away from the seat surface, of the centering extension and the seat surface or between the end of the centering extension and an inner termination of a recess that is integrally formed in the supporting element in an indented manner with respect to the seat surface, is configured such that the ratio between the inside diameter of the mounting hole in the supporting element and the collar height is less than 8, and/or that the collar height is greater than an axial clearance of the pick mounted in a pick ...

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Номер записи: 87
16-03-2017 дата публикации

REPLACEABLE MOUNTING APPARATUS FOR REDUCING ELEMENTS

Номер: US20170073940A1
Автор: CUTLER Edward Lee, FLAHIVE Jeffrey Michael
Принадлежит:

Aspects of the present disclosure relate to an apparatus including a drum rotatable about an axis of rotation and a support mount secured to the drum. The apparatus includes a support mount defining first and second fastener openings and first and second anchor openings. A replaceable holding block mounts to the support mount and the replaceable holding block has a front face and a rear face. The replaceable holding block defines a first fastener opening, a second fastener opening, and a tooth opening that extend through the replaceable holding block from the front face to the rear face. The first and second fastener openings of the replaceable holding block align with the first and second fastener openings of the support mount when the replaceable housing block is mounted to the block mounting surface. A tooth is secured to the replaceable holding block at the tooth opening. 1. An apparatus comprising:a drum rotatable about an axis of rotation;a support mount secured to the drum, the support mount including a base that mounts to the drum and a block mounting surface, the support mount also including first and second sides that extend between the base and the block mounting surface, the support mount defining first and second fastener openings that extend into the support mount from the block mounting surface toward the base, the first and second fastener openings having open ends at the block mounting surface, the support mount also defining first and second anchor openings that extend between the first and second sides and that respectively intersect the first and second fastener openings, the first and second anchor openings having open ends at one or both of the first and second sides;a replaceable holding block that mounts to the support mount, the replaceable holding block having a front face and a rear face, the rear face adapted to face toward the block mounting surface when the replaceable holding block is mounted at the support mount, the replaceable ...

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Номер записи: 88
16-03-2017 дата публикации

SHANK CHISEL AND FIXING ASSEMBLY FOR A SHANK CHISEL

Номер: US20170074098A1
Автор: Roth Markus
Принадлежит: Betek GmbH & Co. KG

The present invention relates to a shank chisel with a chisel head and a chisel shank, wherein the chisel shank has a securing element receptacle in which a securing element is arranged. In order to be able to make simple installation of the shank chisel in a chisel holder possible in a safe and maintenance-optimized manner of operation, it is provided according to the invention that a clamping element is adjustable relative to the chisel shank in such a manner that at least one part of the outer contour of the securing element is changed. The invention furthermore relates to a corresponding fixing assembly for a shank chisel in a chisel holder. 1. A shank chisel with a chisel head and a chisel shank , wherein the chisel shank has a securing element receptacle in which a securing element is arranged , wherein the clamping element is adjustable relative to the chisel shank in such a manner that at least one part of the outer contour of the securing element is changed.2. The shank chisel as claimed in claim 1 , wherein the chisel shank and the clamping element are connected in an infinitely adjustable manner to each other via a connecting element and a receptacle.3. The shank chisel as claimed in claim 2 , wherein the adjustment of the clamping element relative to the chisel shank is limited by means of a stop.4. The shank chisel as claimed in claim 1 , further comprising a chisel tip composed of hard material with a hardness of at least 25 GPa claim 1 , particularly preferably of greater than 40 GPa claim 1 , is fastened to the chisel head.5. The shank chisel as claimed in claim 1 , wherein the chisel head has a tool receptacle for securing a tool in an interlocking manner in the circumferential direction.6. The shank chisel as claimed in claim 1 , wherein at least one part of the chisel shank is formed in a step-like manner by a first cylindrical portion claim 1 , a transition and a second cylindrical portion.7. The shank chisel as claimed in claim 1 , wherein the ...

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Номер записи: 89
14-03-2019 дата публикации

BIT DRIVER AND METHOD FOR ITS USE

Номер: US20190076998A1
Автор: Verkley Steven Gerard
Принадлежит:

A bit driver for a cutting bit having an elongated body configured for being grasped by a user, and a lower end having a distal face. A shaped cavity is formed into the distal face, extending into the elongated body, and has one or more sections, each having a tapered annular surface that is configured to conform to an outer surface of a bit end of a conventional cutting bit. The tapered annular surface holds the cutting bit aligned along an axis of the elongated body. The bit driver also includes a driving end opposite the lower end having a target surface that has a diameter or average effective dimension larger than the diameter of the elongated body. The driving end receives an impact delivered by a hammer to insert the base end of the cutting bit into a receptacle bore of a cutting bit holder or cutting equipment. 1. A bit driver for a cutting bit , including:a) an elongated body configured for being grasped by a user;b) a lower end having a distal face, with a shaped cavity in the distal face extending into the elongated body, the shaped cavity having one or more sections of a tapered annular surface that is configured to conform to an outer surface of a bit end of a conventional cutting bit, to hold the cutting bit aligned along an axis of the elongated body; andc) a driving end opposite the lower end, including a diameter or area target surface larger than the diameter of the elongated body, and configured for receiving an impact delivered by the hammer.2. The bit driver of claim 1 , wherein the weight of the bit driver is at least 5 times the weight of the conventional cutting bit.3. The bit driver of claim 2 , wherein weight of the bit driver is at least 10 times the weight of the conventional cutting bit.4. The bit driver of claim 1 , wherein the diameter of the driving end is at least 25% larger claim 1 , including at least 50% larger claim 1 , than the diameter of the elongated body.5. The bit driver of claim 1 , wherein the surface area of the driving ...

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Номер записи: 90
12-06-2014 дата публикации

Cutting Tool Mounting Assembly

Номер: US20140159467A1
Автор: Bookhamer Paul A., Paros Nicholas J., Weber Luke A.
Принадлежит: KENNAMETAL INC.

A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine. The cutting tool mounting assembly includes a tool holder having a key shank, a base attached to the surface of the rotatable driving member with the base having a mounting groove for receiving the key shank of the tool holder, and a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base. 1. A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine , the cutting tool mounting assembly comprising:a tool holder having a key shank;a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder; anda resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base.2. The cutting tool mounting assembly of claim 1 , wherein the key shank is generally T-shaped.3. The cutting tool mounting assembly of claim 2 , wherein the mounting groove is generally T-shaped for cooperating with the key shank.4. The cutting tool mounting assembly of claim 1 , wherein the tool holder is releasably attached to the base.5. The cutting tool mounting assembly of claim 1 , wherein the resilient retention structure includes a compressible member positioned between the base and the tool holder.6. The cutting tool mounting assembly of claim 5 , wherein the mounting groove includes a recess configured for receiving a bottom portion of the compressible member.7. The cutting tool mounting assembly of claim 6 , wherein a bottom surface of the key shank includes a notch configured for receiving a top portion of the compressible member.8. The cutting tool mounting assembly of claim 7 , wherein the compressible member is formed of nylon claim 7 , ...

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Номер записи: 91
12-03-2020 дата публикации

SLEEVE RETENTION FOR CUTTING PICK ASSEMBLY

Номер: US20200080420A1
Автор: Stewart Christopher G.
Принадлежит:

A cutting assembly is configured to be coupled to a drum that is rotatable about an axis. The cutting assembly includes a block having a leading surface and an inner surface. The inner surface forms a block bore extending along an axis through the leading surface and at least partially through the block. The cutting assembly also includes a sleeve having a sleeve shank with an outer surface, a flange, and a sleeve bore extending through the flange and at least partially through the sleeve shank. During installation of the sleeve to the block, an interface between the outer surface of the sleeve shank and the inner surface of the block bore transitions from an interference fit to a clearance fit. 1. A cutting assembly configured to be coupled to a drum that is rotatable about an axis , the cutting assembly comprising:a block including a leading surface and an inner surface, the inner surface forming a block bore extending along an axis through the leading surface and at least partially through the block;a sleeve including a sleeve shank having an outer surface, a flange, and a sleeve bore, the sleeve bore extending through the flange and at least partially through the sleeve shank, the sleeve shank positionable within the block bore;a step positioned on one of the inner surface of the block bore and the outer surface of the sleeve shank; anda protrusion positioned on the other of the inner surface of the block bore and the outer surface of the sleeve shank, the protrusion engaging the step to maintain the sleeve shank within the block bore.2. The cutting assembly of claim 1 , wherein the protrusion is a sleeve protrusion positioned on the outer surface of the sleeve shank claim 1 , wherein the inner surface of the block bore includes a block protrusion having the step claim 1 , wherein the block protrusion includes an inner diameter and the sleeve protrusion includes an outer diameter claim 1 , and wherein the outer diameter is greater than the inner diameter.3. The ...

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Номер записи: 92
19-06-2014 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTION AND METHOD FOR MAKING SAME

Номер: US20140165476A1
Автор: Can Nedret, Fish Michael Lester
Принадлежит:

A polycrystalline diamond construction comprising a body of polycrystalline diamond material is formed of a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, and a non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area. The percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material and the mean of the individual cross-sectional areas of the non-diamond phase pools in the image analysed using an image analysis technique at a selected magnification is less than 0.7, or less than 0.340 microns squared, or between around 0.005 to 0.340 microns squared depending on the percentage of non-diamond phase in the total area of the cross-section of the polycrystalline diamond construction. There is also disclosed a method of making such a construction. 1. A polycrystalline diamond construction comprising a body of polycrystalline diamond material formed of:a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, anda non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area,wherein the percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material is between around 0 to 5%, and the mean of the individual cross-sectional areas of the non-diamond phase pools in an analysed image of a cross-section through the body of polycrystalline material is less than around 0.7 microns squared when analysed using an image analysis technique at a magnification of around 1000 and an image area of 1280 by 960 pixels.2. A polycrystalline diamond construction comprising a body of ...

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Номер записи: 93
02-04-2015 дата публикации

Chisel Device And Wear-Protected Chisel For Ground Milling Machines

Номер: US20150091365A1
Автор: Arne Schlichting, Bernd Raufelder, Daria Hefter, Domenico Muscara, Joachim Hermes, Monica Wolf, Robert Laux
Принадлежит: Bomag GmbH and Co oHG

The present invention relates to a chisel device for a ground milling machine, comprising a chisel holder having a mounting orifice and a milling chisel, wherein the milling chisel has a basic body of, in particular, a uniform material and has a shaft and a tool region, said shaft being held, under working conditions, in the mounting orifice while the tool region (P) protrudes, under working conditions, from the chisel holder, wherein said milling chisel has a wear protection cap consisting of carbide and having a tip and a protective jacket, wherein the wear protection cap is positioned on the tool region (P) in such a manner that it covers at least 70% of the external surface of the tool region (P). The present invention also relates to a milling chisel for such a chisel device.

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Номер записи: 94
30-03-2017 дата публикации

Reverse Taper Shanks and Complementary Base Block Bores for Bit Assemblies

Номер: US20170089198A1
Автор: Sollami Phillip
Принадлежит:

A bit holder and corresponding base block are disclosed wherein a slotted shank of the bit holder includes a reverse taper portion adjacent a distal end thereof. A base block with a bore for receiving said shank includes a corresponding hollow portion of reverse taper configuration that will tend to retain said shank therein. 1. A bit holder comprising:an upper body portion and a hollow slotted generally cylindrical shank depending from said upper body portion,an outer surface of at least a first portion of the length of said shank adjacent a distal end thereof having a taper extending away from an axis of said shank as it descends toward said distal end.2. The bit holder as defined in wherein said shank further includes:a second portion of diminished diameter upwardly adjacent said first portion.3. The bit holder as defined in wherein:said shank further includes a third portion adjacent a bottom of said upper body portion that is of increased diameter relative said second portion, andone of cylindrical configuration, andtapered configuration toward said axis of said shank as one descends toward said distal end of said shank.4. The bit holder as defined in further including:a hardened tip integrally formed on a top of said upper body portion.5. The bit holder as defined in wherein said tip includes diamond material on top of a tungsten carbide substrate.6. The bit holder as defined in wherein said tip includes thermally stable polycrystalline diamond material.7. The bit holder as defined in wherein said combined first claim 3 , second and third portions of said shank are less than 2½ inches in length.8. The bit holder as defined in wherein the slot of said hollow slotted generally cylindrical shank extends from said distal end thereof axially through said first portion thereof and through said second diminished diameter portion thereof terminating adjacent said third portion thereof.9. A combination bit holder and base block comprising:a bit holder having an upper ...

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Номер записи: 95
05-05-2022 дата публикации

Method and device for monitoring operation of a mining machine unit

Номер: US20220136390A1
Автор: Euan KIRKHOPE, Johannes Wesselmann
Принадлежит: CATERPILLAR SARL

The present invention pertains to a method for monitoring operation of a mining machine unit, particularly of a longwall mining system, having a shield unit connected to a material removing unit by means of an actuator for adjusting a distance between the shield unit and the material removing unit, the method comprises the steps of determining a position change of the shield unit during an actuating operation of the actuator; and a step of detecting a malfunction of the mining machine unit based on the determined position change.

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Номер записи: 96
01-04-2021 дата публикации

METHOD AND TOOL FOR DISCONNECTING A LINE SPLICE

Номер: US20210094194A1
Автор: Smith Sean T.
Принадлежит:

A sleeve is made up of two halves which in one embodiment are identical. The sleeve includes a channel extending along the length thereof, which is sized to receive a line therein, which line is to be removed from a splice. The sleeve includes a shim on an end thereof which is sized to fit into an end of the splice, with a tip of the shim pushing back jaws of the splice to remove the line from the splice. A casing fits over the sleeve halves to hold them together. This casing includes a first half and the second half which are pivoted together about a pivot joint. The tool including the casing and sleeve halves can slide along the line to allow the tip of the shim to fit into the end of the splice and push back the jaws to release the line. 1. A tool for removing a splice from an end of a wire , the tool comprising in combination:a pair of sleeve halves surrounding a central channel sized to receive the wire;a casing surrounding at least portions of said pair of sleeve halves to hold said pair of sleeve halves together; andsaid sleeve halves including a shim end with a tip of said shim end having an annular size greater than a diameter of the wire and less than a diameter of the splice at an end of the splice coupled to the wire.2. The tool of wherein said sleeve halves are semi-cylindrical in form with channel portions therein which together form said central channel.3. The tool of wherein said casing includes a first half and a second half which are hinged together.4. The tool of wherein said sleeve halves each include a body having a larger diameter than said shim end and said tip claim 3 , and with said body of each of said sleeve halves held together by said casing.5. The tool of wherein said casing includes an inner chamber shaped to receive said the body of each of said sleeve halves therein while held together and upon the wire.6. The tool of wherein said sleeve halves include a shoulder between said body and said shim end claim 5 , said shoulder having a ...

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Номер записи: 97
26-06-2014 дата публикации

Pick For Earthworking Machine

Номер: US20140175853A1
Автор: Warren John Joseph
Принадлежит: ESCO Hydra (UK) Limited

A pick to be used on an earth working roll for mining, construction and public works machines such as crushers, surface miners, milling machines and the like. The pick includes a working end with holes that extend into the pick and inserts are received into the holes. The inserts during operation impact and fracture a consolidated material to separate the material. Impacting the material generates heat in the pick at the working end of the pick which must be dissipated and attenuated to limit thermal fatigue in the inserts that occurs at high temperatures. The inserts in the working end are configured to dissipate the generated thermal energy from the inserts to the body of the pick. 1. A pick for attachment to a driven roll for working a consolidated material comprising:a head configured to separate the consolidated material including:a strike face;holes that open at the strike face; andinserts received in the holes that extend beyond the strike face to impact the consolidated material; anda body that contacts the driven roll.2. The pick of where the inserts are equidistant about a center point of the strike face.3. The pick of where the holes are parallel to each other.4. The pick of where the angle between any two holes is between 5 and 40 degrees.5. The pick of where the inserts are made of one or more material selected from the material group comprising carbide claim 1 , steel claim 1 , diamond and ceramic.6. The pick of where the hardness of at least one of the inserts is different than the hardness of the other inserts.7. The pick of where the head receives three inserts.8. The pick of where the head receives four inserts.9. The pick assembly of where the holes are all parallel viewed from a first perspective and the angle between two of the holes is between 5 and 40 degrees viewed from a perspective orthogonal to the first perspective.10. The pick of where the pick includes a shank to be received in an opening of a tool holder secured to the roll.11. The ...

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Номер записи: 98
01-04-2021 дата публикации

MILLING PICK

Номер: US20210095564A1
Автор: FRIEDERICHS Heiko, Kramer Ulrich
Принадлежит:

The invention relates to a milling pick, in particular a round pick having a pick head (), which has a pick tip () made of a hard material as a cutting element, wherein furthermore a pick shank () is provided, which is coupled directly or indirectly to the pick head (), wherein a wear-protection disk () is provided, the cut-out of which, in particular a drilled hole, is pushed onto the pick shank (), 112-. (canceled)13. A milling pick , comprising:a pick head including a bearing surface;a pick shank coupled directly or indirectly to the pick head;a pick tip made of a hard material harder than the pick head, the pick tip being connected to the pick head; a counterface configured to engage the bearing surface of the pick head;', 'an underside support surface; and', 'a disk thickness defined between the counterface and the underside support surface at an outer periphery of the wear-protection disk; and, 'a wear-protection disk including a cut-out, the pick shank being received through the cut-out, the wear-protection disk includingwherein a ratio of a diameter of the pick shank adjacent the cut-out to the disk thickness is in a range of from 1.5 to 3.75.14. The milling pick of claim 13 , wherein:the ratio of a diameter of the pick shank adjacent the cut-out to the disk thickness is in a range of from 2 to 3.15. The milling pick of claim 13 , wherein:the underside support surface is parallel to the counterface.16. The milling pick of claim 13 , wherein:the cut-out is a drilled hole.17. The milling pick of claim 13 , wherein:the counterface includes recesses configured such that second surface segments of the counterface are formed between the recesses; andwherein the second surface segments rest at least in some areas against the bearing surface of the pick head.18. The milling pick of claim 17 , wherein:the counterface includes a first surface segment running annularly around the cut-out; andwherein the first surface segment adjoins the second surface segments, and the ...

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Номер записи: 99
12-05-2022 дата публикации

Cutting tool for a tunnel boring machine and a tunnel boring machine

Номер: US20220145757A1
Автор: Christian Himmelsbach
Принадлежит: HERRENKNECHT AG

In a cutting tool ( 106 ) for a tunnel boring machine, a tool head ( 115 ) equipped with at least one wear sensor ( 315 ) is present that is detachably connectable to a tool holder ( 206, 321 ). A line arrangement having a wireless, connector-free coupling module ( 312 ) between the tool head ( 115 ) and the tool holder ( 206, 321 ) is provided for connecting the or each wear sensor ( 315 ) to an evaluation module ( 330 ). In this way, in the event of wear, a tool head ( 115 ) to be replaced may very easily be removed from the tool holder ( 206, 321 ) and a new tool head ( 115 ) may be connected to the tool holder ( 206, 321 ) very easily and in an electrically safe manner. A tunnel boring machine equipped with at least one cutting tool ( 106 ) of this type is thus operable in a very efficient manner.

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Номер записи: 100