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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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Применить Всего найдено 11. Отображено 11.
11-05-2017 дата публикации

ADAPTIVE HAMMER CONTROL SYSTEM

Номер: US20170129088A1
Автор: Koushik Kabiraj, Chetan V. Dahiwal, Anuop Udayakumar, KABIRAJ KOUSHIK, DAHIWAL CHETAN V, UDAYAKUMAR ANUOP, Kabiraj Koushik, Dahiwal Chetan V., Udayakumar Anuop
Принадлежит: Caterpillar Inc.

A control system for a hydraulic hammer is provided. The control system includes a sensing unit configured to sense position and rebound acceleration of a piston of the hydraulic hammer. The control system further includes an electronic control module (ECM) in communication with the sensing unit, and configured to generate signals based on the sensed position and rebound acceleration of the piston. The control system further includes a selection unit configured to allow an operator to select between a manual mode and an automatic mode. The control system further includes a valve in communication with the electronic control module (ECM). The valve being configured to be operated between a closed position and an open position based on the signals generated by the electronic control module (ECM) to selectively move the piston. 1. A control system for a hydraulic hammer , the control system comprising:a sensing unit configured to sense position and rebound acceleration of a piston of the hydraulic hammer;an electronic control module (ECM) in communication with the sensing unit, and configured to generate signals based on the sensed position and rebound acceleration of the piston;a selection unit in communication with the electronic control module (ECM) and configured to allow an operator to select between a manual mode and an automatic mode, wherein in the manual mode the operator selects number of blows per minute for the hydraulic hammer, and in the automatic mode, upon sensing threshold limit of rebound acceleration of the piston, the electronic control module (ECM) adjusts piston movement based on a work surface; anda valve in communication with the electronic control module (ECM), the valve being configured to be operated between a closed position and an open position based on the signals generated by the electronic control module (ECM) to selectively move the piston.2. A hydraulic hammer comprising:a housing;a piston movably positioned within the housing;a tool ...

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Номер записи: 1
03-12-2015 дата публикации

HAMMMER TOOL ASSEMBLY

Номер: US20150343626A1
Автор: Dahiwal Chetan V., Gunasekaran Jayaram, Moore Cody T., Padwal Yogesh G., Rajendran Ashok, Udayakumar Anuop
Принадлежит: CATERPILLAR INC.

A hammer tool assembly for a machine is provided. The hammer tool assembly includes a power cell, a tool, and a frame assembly. The frame assembly includes a first side plate and a second side plate. A set of paired blocks are coupled to an inner wall of the first and second side plates respectively. Each of the set of paired blocks includes a plurality of holes configured to receive dowel pins therein. A plurality of mechanical fasteners received through a plurality of openings at any one of the first and second side plates. The plurality of openings of each of the first and second side plates is coaxially aligned with corresponding holes in each of the set of paired blocks respectively. A plurality of mechanical fasteners passes through the aligned holes and extends through the plurality of openings provided at the other of the second and first side plates. 1a power cell defining a first axis;a tool coupled to one end of the power cell; and a first side plate and a second side plate, the first and second side plates positioned in surrounding contact with the power cell; and', 'a set of paired blocks coupled to an inner wall of the first and second side plates respectively, the set of paired blocks arranged to surround the power cell, each of the set of paired blocks including a plurality of holes defined on an inner facing side thereof, the plurality of holes configured to receive dowel pins therein,', 'wherein a plurality of openings is defined on each of the first and second side plates, wherein the plurality of openings of each of the first and second side plates is coaxially aligned with corresponding holes in each of the set of paired blocks respectively, and wherein a plurality of mechanical fasteners are received through the plurality of openings at any one of the first and second side plates, such that the plurality of mechanical fasteners pass through the aligned holes and extend through the plurality of openings provided at the other of the second and ...

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Номер записи: 2
31-12-2015 дата публикации

Fork assembly for lifting machines with interlocking tines

Номер: US20150375978A1
Автор: Anuop Udayakumar, Chetan V. Dahiwal, Gopalakrishnan Kanniappan, Gregory A. Seljestad, Venkatesh Madeshi
Принадлежит: Caterpillar Inc

A fork assembly for a lifting machine is provided. The fork assembly includes a fork base and a tine member. A first end of the fork base is attachable to the movable frame portion. A second end of the fork base extends outwardly from the first end. The fork base defines a lift surface, a first side surface, and a second side surface. The tine member defines a top portion, a first side portion, a second side portion, and a bottom portion. The bottom portion of the tine member defines a recess with a first engagement wall, a second engagement wall, and a third engagement wall. The tine member attains an interlocked position with the fork base, when the fork base is disposed within the recess of the tine member.

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Номер записи: 3
17-11-2022 дата публикации

Cover for a hammer tool and systems, assemblies, and methods thereof

Номер: US20220362897A1
Автор: Akshay D. Mate, Chetan V. Dahiwal, Cody Moore, Hariom K. GUPTA, Manoj Kumar
Принадлежит: Caterpillar Inc

A cover for a hammer tool and systems, assemblies, and methods thereof can be flexible and can comprise a body; a first attachment interface at a first end portion of the body; and a second attachment interface at a second end portion of the body separated from the first end portion of the body. A predefined hinge can be formed in the body of the cover, between the first attachment interface and the second attachment interface. The cover can be configured to be fixedly coupled to a housing of a hammer tool via the first attachment interface. The cover can be configured to be removably coupled to the housing of the hammer tool via the second attachment interface.

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Номер записи: 4
23-11-2023 дата публикации

Cover for a hammer tool and systems, assemblies, and methods thereof

Номер: AU2022274536A1
Автор: Akshay D. Mate, Chetan V. Dahiwal, Cody Moore, Hariom K. GUPTA, Manoj Kumar
Принадлежит: Caterpillar Inc

A cover (120) for a hammer tool and systems, assemblies, and methods thereof can be flexible and can comprise a body (122); a first attachment interface (126) at a first end portion (123) of the body (122); and a second attachment interface (130) at a second end portion (124) of the body (122) separated from the first end portion (123) of the body (122). A predefined hinge (134) can be formed in the body (122) of the cover (120), between the first attachment interface (126) and the second attachment interface (130). The cover (120) can be configured to be fixedly coupled to a housing (102) of a hammer tool via the first attachment interface (126). The cover (120) can be configured to be removably coupled to the housing (102) of the hammer tool via the second attachment interface (130).

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Номер записи: 5
08-02-2024 дата публикации

Bearing materials for tricone bit rolling elements

Номер: AU2022316878A1
Автор: Akilan Appavu, Benjamin J. BARGFREDE, Chetan V. Dahiwal, Gary C. Yerby, Michael A. Pershing, Scott A. Johnston, Swetha SURESH, Thomas J. Yaniak, Timothy F. Nusz, Todd M. BLINDT
Принадлежит: Caterpillar Inc

Roller cone drill bits (100) and methods of increasing the wear resistance of a roller cone drill bit are disclosed. The roller cone drill bit (100) includes a plurality of rolling elements (400A, 400B) within a bearing assembly (202, 204, 206) of a cone (110). Each rolling element of the plurality of rolling elements (400A, 400B) may have a surface hardness of HRC 59-63, a hardened depth that is 0.5 mm to 3.0 mm deep, and may be derived from a low carbon bearing steel material. The hardened depth is measured from the surface of each rolling element (400A, 400B) and the low carbon bearing steel material has, by weight percent, from 0.12% to 0.25% carbon.

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Номер записи: 6
17-11-2022 дата публикации

Cover for a hammer tool and systems, assemblies, and methods thereof

Номер: WO2022240670A1
Автор: Akshay D. Mate, Chetan V. Dahiwal, Cody Moore, Hariom K. GUPTA, Manoj Kumar
Принадлежит: CATERPILLAR INC.

A cover (120) for a hammer tool and systems, assemblies, and methods thereof can be flexible and can comprise a body (122); a first attachment interface (126) at a first end portion (123) of the body (122); and a second attachment interface (130) at a second end portion (124) of the body (122) separated from the first end portion (123) of the body (122). A predefined hinge (134) can be formed in the body (122) of the cover (120), between the first attachment interface (126) and the second attachment interface (130). The cover (120) can be configured to be fixedly coupled to a housing (102) of a hammer tool via the first attachment interface (126). The cover (120) can be configured to be removably coupled to the housing (102) of the hammer tool via the second attachment interface (130).

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Номер записи: 7
20-03-2024 дата публикации

Cover for a hammer tool and systems, assemblies, and methods thereof

Номер: EP4337422A1
Автор: Akshay D. Mate, Chetan V. Dahiwal, Cody Moore, Hariom K. GUPTA, Manoj Kumar
Принадлежит: Caterpillar Inc

A cover (120) for a hammer tool and systems, assemblies, and methods thereof can be flexible and can comprise a body (122); a first attachment interface (126) at a first end portion (123) of the body (122); and a second attachment interface (130) at a second end portion (124) of the body (122) separated from the first end portion (123) of the body (122). A predefined hinge (134) can be formed in the body (122) of the cover (120), between the first attachment interface (126) and the second attachment interface (130). The cover (120) can be configured to be fixedly coupled to a housing (102) of a hammer tool via the first attachment interface (126). The cover (120) can be configured to be removably coupled to the housing (102) of the hammer tool via the second attachment interface (130).

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Номер записи: 8
02-02-2023 дата публикации

Bearing materials for tricone bit rolling elements

Номер: CA3226117A1
Автор: Akilan Appavu, Benjamin J. BARGFREDE, Chetan V. Dahiwal, Gary C. Yerby, Michael A. Pershing, Scott A. Johnston, Swetha SURESH, Thomas J. Yaniak, Timothy F. Nusz, Todd M. BLINDT
Принадлежит: Caterpillar Inc

Roller cone drill bits (100) and methods of increasing the wear resistance of a roller cone drill bit are disclosed. The roller cone drill bit (100) includes a plurality of rolling elements (400A, 400B) within a bearing assembly (202, 204, 206) of a cone (110). Each rolling element of the plurality of rolling elements (400A, 400B) may have a surface hardness of HRC 59-63, a hardened depth that is 0.5 mm to 3.0 mm deep, and may be derived from a low carbon bearing steel material. The hardened depth is measured from the surface of each rolling element (400A, 400B) and the low carbon bearing steel material has, by weight percent, from 0.12% to 0.25% carbon.

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Номер записи: 9
05-06-2024 дата публикации

Bearing materials for tricone bit rolling elements

Номер: EP4377581A1
Автор: Akilan Appavu, Benjamin J. BARGFREDE, Chetan V. Dahiwal, Gary C. Yerby, Michael A. Pershing, Scott A. Johnston, Swetha SURESH, Thomas J. Yaniak, Timothy F. Nusz, Todd M. BLINDT
Принадлежит: Caterpillar Inc

Roller cone drill bits (100) and methods of increasing the wear resistance of a roller cone drill bit are disclosed. The roller cone drill bit (100) includes a plurality of rolling elements (400A, 400B) within a bearing assembly (202, 204, 206) of a cone (110). Each rolling element of the plurality of rolling elements (400A, 400B) may have a surface hardness of HRC 59-63, a hardened depth that is 0.5 mm to 3.0 mm deep, and may be derived from a low carbon bearing steel material. The hardened depth is measured from the surface of each rolling element (400A, 400B) and the low carbon bearing steel material has, by weight percent, from 0.12% to 0.25% carbon.

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Номер записи: 10
27-09-2023 дата публикации

Dust suppression system for hammers

Номер: EP4247593A1
Автор: Akshay D. Mate, Chetan V. Dahiwal, Cody Moore, Dhanunjaya D. Reddy, Hariom K. GUPTA
Принадлежит: Caterpillar Inc

A dust suppression system (54) for a demolition hammer (1) is disclosed. The dust suppression system (54) may have a water hose (56) routed within a power cell (26) of the demolition hammer (1), and a connector channel (58) internal of the walls of a front head (35) of the demolition hammer (1). The water hose (56) may be utilized to deliver water from outside of the demolition hammer (1) to a connection valve (65) on a top end (64) of the front head, (35) and the internal connector channel (58) may deliver water from the connection valve (62) to one or more nozzles (66) located at a bottom end (68) of the front head (35).

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Номер записи: 11