Реверсивное гидроударное устройство

FIELD: power engineering. SUBSTANCE: invention relates to a reverse hydraulic impact device. The device contains a distributor with a control chamber and a control channel, an energy accumulator, a spring-connected case and a striker with a groove, a hydraulic chamber, striker movement limiters, the first pair of control channels, the second pair of control channels, an overflow valve, an additional distributor and a throttle for supplying liquid from the control channel of the additional distributor to a drain line. The first pair of control channels connects, depending on the position of the striker, the control channel leading to the distributor control chamber to drain or pressure lines. The overflow valve is made with the possibility of providing liquid supply in an open state through the control channel of the additional distributor to the control chamber of the additional distributor. EFFECT: same efficiency of the device in forward and reverse directions is ensured. 1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 770 914 C1 (51) МПК B25D 9/14 (2006.01) E21B 1/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B25D 9/14 (2022.02); E21B 1/26 (2022.02) (21)(22) Заявка: 2021129096, 06.10.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 25.04.2022 (45) Опубликовано: 25.04.2022 Бюл. № 12 2 7 7 0 9 1 4 R U (54) Реверсивное гидроударное устройство (57) Реферат: Изобретение относится к реверсивному гидроударному устройству. Устройство содержит распределитель с камерой управления и каналом управления, аккумулятор энергии, связанные пружиной корпус и боек с проточкой, гидравлическую камеру, ограничители движения бойка, первую пару каналов управления, вторую пару каналов управления, переливной клапан, дополнительный распределитель и дроссель для подачи жидкости от канала управления дополнительного распределителя в сливную линию. Первая пара каналов управления Стр.: 1 (56) Список ...

Отбойный молоток

Полезная модель относится к горнодобывающей и строительной промышленности и может быть использована для разрушения горных парод, бетонов, асфальта, кирпичных и каменных кладок, рыхления твердого и промерзшего грунта, расколки льда и для других общестроительных и специальных работ. Отбойный молоток, содержащий соединенные между собой посредством проставки корпус с рукоятью и ствол с рабочим инструментом, причем рукоять установлена на корпусе посредством подпружиненного стакана, внутри ствола расположен ударный элемент, одним концом взаимодействующий с рабочим инструментом, а другим концом - с плунжером ударного механизма, расположенного в корпусе, при этом плунжер ударного механизма соединен с гильзой, причем параллельно ударному механизму с гильзой установлен золотниковый механизм, содержащий соединенные между собой золотник, гильзу и плунжер, при этом гильза ударного механизма гидравлически сообщена с золотниковым механизмом с возможностью передачи ударного импульса и холостого хода, причем ...

Двухпоршневой пневмоударник

Полезная модель относится к буровой технике и может быть использована в горнорудной промышленности. Двухпоршневой пневмоударник включает корпус, состоящий из двух соосно расположенных цилиндров 1 и 2 с выхлопными каналами 3 и цилиндрической камерой, разделённой перегородкой 4, поршни 5, 6 и долото 7. Поршни 5, 6 снабжены штоком 8, расположенным между ними и снаружи них. Шток 8 вместе с поршнями 5 и 6 объединены в единую конструкцию. В штоке 8 и поршнях 5, 6 выполнен осевой воздушный канал 9, а в поршнях 5, 6 - радиальные отверстия 10 рабочего хода и наклонные 11 отверстия холостого хода. В цилиндрической камере выполнены уширения 12. С одной стороны цилиндрическая камера снабжена головкой 13 со шпонкой, в которой закреплено долото 7, а с другой стороны - переходником 14 с осевым каналом 15, сообщающимся с осевым каналом штока 9. Наружный диаметр штока 8 между поршнями 5, 6 соответствует внутреннему диаметру перегородки 4, установленной между цилиндрами 1, 2. Обеспечивается упрощение конструкции ...

ПОГРУЖНОЙ ПНЕВМОУДАРНИК

Использование: горная промышленность. Сущность изобретения: погружной пневмоударник содержит корпус, установленный в нем с возможностью возвратно-поступательного перемещения ступенчатый полый поршень-ударник, ступень большего диаметра которого установлена в корпусе с зазором, и на ее наружной поверхности выполнено уплотнение, составной переходник, в котором установлена ступень меньшего диаметра поршня-ударника, переходную втулку и закрепленную в ней газораспределительную трубку. На наружной поверхности части меньшего диаметра переходника выполнены продольные пазы, радиальные отверстия и дополнительная кольцевая проточка. В ступени большего диаметра поршня-ударника выполнены газораспределительные радиальные отверстия. В газораспределительной трубке, имеющей радиальные отверстия, по краям выполнены сопряженные с ними кольцевые проточки. 2 ил. 9519$х60с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 093 675 (13) С1 Е 21 С 3/24, 3/26 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96116725/28, 30.08.1996 (46) Дата публикации: 20.10.1997 (56) Ссылки: 1. Патент СССР М 1811556, кл. Е 21 С 3/24, 1993. 2. Авторское свидетельство СССР М 1689605, кл. Е 21 С 3/24, 1991. (71) Заявитель: Йелстаун Корпорейшн Н.В. (М) (72) Изобретатель: Гречушкин Борис Алексеевич[К], Кадомкин Виктор Викторович[КУ], Комаров Владимир Михайлович[КУ], Френкель Борис Ефимович[К] (73) Патентообладатель: Йелстаун Корпорейшн Н.В. (М) (54) ПОГРУЖНОЙ ПНЕВМОУДАРНИК (57) Реферат: Использование: горная промышленность. Сущность изобретения: погружной пневмоударник содержит корпус, установленный в нем с возможностью возвратно-поступательного перемещения ступенчатый полый поршень-ударник, ступень большего диаметра которого установлена в корпусе с зазором, и на ее наружной поверхности выполнено уплотнение, составной переходник, в котором установлена ступень меньшего диаметра поршня-ударника, переходную втулку и закрепленную в ней газораспределительную трубку. ...

Пневматический ударный механизм

Изобретение относится к строительству и горной промышленности, в частности к пневматическим устройствам ударного действия. Пневматический ударный механизм содержит цилиндрический корпус с выпускными каналами, кольцевой фланец со сквозным центральным отверстием, рабочий инструмент с хвостовиком, ступенчатый ударник со штоковой частью, установленный в центральном отверстии кольцевого фланца стержень с поршневой частью с винтовым каналом-пазом, кольцевую камеру пневматического буфера, втулку цилиндрического корпуса с отверстием для пропуска штоковой части, камеру сетевого воздуха со стороны кольцевого фланца с каналами перепуска, камеру холостого хода со стороны хвостовика рабочего инструмента. Внутри втулки цилиндрического корпуса расположена распределительная камера. Каналы перепуска постоянно сообщают камеру сетевого воздуха с распределительной камерой. Относительно цилиндрического корпуса закреплен стакан с каналом для подвода воздуха. Наружная боковая поверхность штоковой части ступенчатого ...

Ударная компрессионно-вакуумная машина двойного действия

Изобретение относится к горному делу и строительству, а именно к машинам ударного действия, применяемым при отбойке монолитов, для разрушения устаревших фундаментов при реконструкции зданий и забивке свай, в сейсморазведке как источник возбуждения сейсмических волн на малых глубинах. Машина содержит корпус и размещенный в нем ударник, образующие нижнюю камеру и верхнюю камеру, соединенную с вакуум-компрессором, рабочий инструмент, инерционно-фрикционный клапан в верхней части корпуса, содержащий золотник с фрикционной втулкой-седлом. Нижняя камера соединена с атмосферой. Верхняя камера соединена с вакуумной и напорной линиями вакуум-компрессора попеременно через упомянутый инерционно-фрикционный клапан, золотник которого оснащен в нижней части магнитным фиксатором, в верхней - распределителем рабочей среды, выполненным с возможностью попеременного соединения посредством ударника вакуумной и напорной линий вакуум-компрессора с верхней камерой и атмосферой. Фрикционная втулка-седло золотника ...

Двухпоршневой пневмоударник

FIELD: mining. SUBSTANCE: invention relates to drilling equipment. Hammer consists of two cylinders 1 and 2 with coaxially arranged cylinders 1 and 2 with cylindrical chambers 3 and 4 separated by partition 5 with holes 6, pistons 7 and 8, lengthwise channel 9 and striker 10. In piston 7 there is a cavity, in which striker 10 is installed. Piston 8 comprises axial channel 11 and radial channels 12 and 13 to act as air distribution unit. Proposed hammer is equipped with head 14 with bit 15 fitted on cylinder 1 and adapter 16 with axial hole 17 fitted on cylinder 2. Bore 18 is made in end part of cylinder 1 on side of head with bit. Bores 19 and 20 are made in cylinder 2 on its end parts. In its central part there is an exhaust radial hole 21. Longitudinal channel 9 connecting cylindrical chambers 3 and 4 is installed inside cylinders 1 and 2. EFFECT: simplified design, increased reliability of operation, reduced weight and size of device, simplified process of device manufacturing. 1 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 740 979 C1 (51) МПК E21B 4/14 (2006.01) E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 4/14 (2020.08); E21C 37/24 (2020.08); B25D 9/14 (2020.08); B25D 2250/275 (2020.08) (21)(22) Заявка: 2020119403, 11.06.2020 (24) Дата начала отсчета срока действия патента: 22.01.2021 Приоритет(ы): (22) Дата подачи заявки: 11.06.2020 (45) Опубликовано: 22.01.2021 Бюл. № 3 2 7 4 0 9 7 9 R U (54) Двухпоршневой пневмоударник (57) Реферат: Изобретение относится к буровой технике. Пневмоударник включает корпус, состоящий из двух соосно расположенных цилиндров 1 и 2 с цилиндрическими камерами 3 и 4, разделёнными перегородкой 5 с отверстиями 6, поршни 7 и 8, продольный канал 9 и боек 10. В поршне 7 выполнена полость, в которой установлен боек 10. В поршне 8 выполнены осевой канал 11 и радиальные каналы 12 и 13, выполняющие функцию воздухораспределительного узла. ...

Пневматический ударный механизм

Изобретение относится к горному делу и строительству - к буровой технике, применяется при бурении скважин ударно-вращательным способом. Пневматический ударный механизм содержит корпус с буровой коронкой, в котором расположены поршень, образующий с его стенками камеры рабочего и холостого хода, переходник для соединения с напорной магистралью энергоносителя, имеющий центральный канал и перекрытие в нем, выполненное за одно целое с переходником и разделяющее его центральный канал на заднюю часть, сообщенную с боковыми каналами в стенке переходника, и переднюю часть, сообщенную с отверстиями в дне кольцевой канавки, выполненной по наружной боковой поверхности переходника, в которой установлен с предварительным натягом эластичный клапан в форме тора, образующий с корпусом и переходником надклапанную полость, сообщенную с напорной магистралью через указанные боковые каналы в стенке переходника, и заднюю часть его центрального канала, а со стенками корпуса – канал для впуска энергоносителя в ...

PNEUMATIC SINGLE-SHOCK DEVICE

Abstellvorrichtung fuer Pressluftwerkzeuge

Werkzeugzieher (Dornzieher), besonders fuer Aufweitewerkzeuge

Presslufthammer

Durch ein gasfoermiges Druckmittel betriebener Hammer

Chirurgisches Instrument zum mechanischen Entfernen von Knochenzement, sowie Verfahren zum Erzeugen von Stoßwellen

Fluidbetriebenes Schlagwerk mit automatischer Hubumschaltung

Improvements in percussive tools

... 288,242. Ingersoll-Rand Co., (Assignees of Hulshizer, G. W.). April 6, 1927, [Convention date]. Percussive drills.-The piston chamber B has an annular recess C at its front end, and an intermediate recess D connected to the rear end by passages E. An inlet plug P is mounted in the rear of the tool and is provided with ports S connected by external passages T. A hammer piston U reciprocates in the chamber B and is provided with a head V, a rearward extension W, annular grooves Z, b connected by passages Y, and a central, rearwardly open bore X which slides on the plug P and is constantly exposed to fluid pressure. An exhaust port is provided at F. In the position shown, the pressure fluid passes through the plug passage R, ports S, passages T, Y, recess D, and passages E to the rear end of the cylinder and drives the piston forward. When the passages Y enter the recess C, the piston overruns the port F, fluid pressure is supplied to the forward end of chamber B and exhausted from the rear ...

Improvements in Pneumatic Impact Tools.

... 12,194. Burlingham, W., and Weaver, J. B. May 18. Percussive hand tools. -The tool is provided with tandem high and low pressure cylinders 13, 2 formed in an extension of the handle and a separate casting which are connected together by a screwed collar 5, and is provided with a receiver comprising longitudinal connected bores 25. High - pressure and low - pressure air together effect the operative stroke of the piston, and low-pressure air alone the return stroke. The distribution is effected by two parallel differential valves 22, 23 comprising pairs of large and small heads placed beneath the high-pressure cylinder and shown diagrammatically in Figs. 1 and 2. The supply fluid has constant access to the areas between the central heads. The valve 22 is reversed bv high - pressure fluid from the high-pressure cylinder; the valve 23 is reversed by receiver pressure. During the reciprocation of the main differential piston, the large valve ends are put into communication with the exhaust ...

Powered impact tools

... 979,744. Percussive tools. T. MIKIYA. Feb. 8, 1963 [Aug. 7, 1962], No. 5296/63. Heading B4C. A compressed air-actuated percussive tool comprises a rear cylinder 1 in which a hammer piston 22 slides, a front cylinder 2, a toolholder 35 slidable in the front cylinder, air passages 15, 151, 16 formed in the walls of the cylinders, valve means 8 controlling the supply of air to the passages, an inlet port 30 and exhaust port 32 for admitting and exhausting air from the rear of the piston when the latter is in a retracted and advanced position respectively, a port 41 for introducing compressed air from the passage 16 into air passages 40 in the holder when it is in its advanced position, an anvil 34, and exhaust ports 32, 44 for connecting the spaces above and below the anvil to atmosphere. The retracted position of the piston 22, anvil 34 and tool-holder 35 is as shown in Fig. 2, so that in operation, when the valve 8 is opened by means of a lever 9 compressed air is fed via a passage ...

Pneumatic percussion tool

... 1,041,780. Percussion tools. JAEGER MACHINE CO. June 22,1965 [Aug.10, 1964], No. 26359/65. Heading B4C. The piston 11 (not shown) of a pneumatic percussion tool is raised by compressed air supplied past a manually-operated throttle valve 38 into a chamber 50a above an annular valve member 55 and through bores 51 in the valve chest 50 and passages 30 (not shown) in the cylinder wall 15, to enter the cylinder through radial bores beneath the piston 11. When the piston 11 nears the upper end of the cylinder 15 the air pressure above it is such that the valve member 55 is raised to disconnect the bores 51 from the compressed air supply and to connect them to a chamber 53 vented to the atmosphere through a bore 54 (not shown). Compressed air is then supplied to the bores 58 in the valve member 55 to the space above the piston 11, whilst the space below the piston is exhausted to the atmosphere through ports in the cylinder wall. The piston 11 is thus driven downwardly and the valve member 55 ...

Improvements in and relating to percussive tools

... 927,902. Percussive tools. C. LEAVELL. June 17, 1959 [June 18, 1958], No. 20869/59. Class 124: A pneumatic percussive tool comprises a counterbalancing system having upper and lower counterbalancing surfaces with crosssectional areas equal to the upper and lower reaction surfaces on the tool, a hermetic barrier between the upper and lower counterbalancing surfaces and means for applying pneumatic pressure against the upper and lower counterbalancing surfaces equal in value to those applied to the lower and upper reaction surfaces of the tool. As shown, a casing 356 forming a cylinder having upper and lower counterbalancing surfaces 364a and 364b is fixed to the casing of a percussive tool having upper and lower reaction surfaces 2b and 2a. A piston 320 is provided in the cylinder and the space 356b below the piston is connected to the space above the tool piston, while the upper space 356a is connected to the space below the tool piston. The downward thrust when compressed air is admitted ...

POST DRIVERS

Improvements relating to Percussive Mining Drills.

... 4392. Rayner, G. H. Feb. 22. [Cognate Application, 16,729/10.] Percussive drills; percussive hand tools. - In a hammer drill, the piston e is intermittently rotated by a rifle bar and a ratchet, t h e motion being conveyed to the tool by a flat f<1> on the piston engaging a pin g<2> in the chuck g. The tool is retained in the chuck by a screwed cap t slotted to pass over the drill steel and engaging a collar thereon. A coil of wire u engages a notch in the cap to prevent unscrewing. The handle b, cylinder a, and collar r are secured together by bolts which carry springs bearing against a sleeve s which supports the chuck g.

Apparatus of percussion.

PNEUMATICALLY OPERATION IMPACT EQUIPMENT

PNEUMATIC PERCUSSIVE TOOL.

PROCEDURE AND MACHINE TO LEVELLING ROAD-UPPERFLAT

IMPACT EQUIPMENT WITH A MECHANISM FOR STEERING ROUND THE APPLICATION OF PRESSURE OF THE IMPACT PISTON

ONE-STROKE PNEUMATIC DEVICE

Pressure reversing valve for percussive drilling apparatus

ROCK DRILL

IMPACT TOOL WITH HYDRAULIC COCKING MECHANISM

An impact tool for mining, demolition work and the like. An energy storing device such as a coil spring, when compressed| accelerates a hammer to deliver a blow to a working tool. The hydraulic cocking mechanism has a compression chamber and a bias chamber. A shaft extends through the compression chamber and into the bias chamber. The shaft has an annular stop attached to it and reciprocally carries a compression sleeve above the annular stop. A bias member extends into the bias chamber. Input hydraulic pressure urges the bias member to press the compression sleeve into seating contact with the annular stop to define a piston. Hydraulic input pressure acting at the same time below the piston urges the shaft upward to cock the spring. At the top of the stroke, ports and passages reduce the pressure difference above and below the piston to allow the spring to force the shaft down for impact. On the downstroke, the compression sleeve and annular stop separate. Ports urge the sleeve back into ...

PNEUMATIC TOOL

A pneumatic percussion tool for rock breaking and other purposes has, removably enclosed within an outer casing a pneumatic engine including a cylinder with a work head extending slidably from its lower end, a piston slidable in the cylinder impacting the work head on its downstroke. The piston serves also as a sliding valve into which compressed air is admitted through an air inlet tube fixed coaxially in the cylinder and on which the piston is slidable. The piston and cylinder are formed with such air ports and passages that the engine remains at rest until the work head applied with pressure to a work-piece is retracted into the cylinder displacing the piston valve which thereupon is reciprocated, causing the work head to deliver percussive blows while applied to the work-piece. At the final part of its upstroke the piston enters a compression chamber or energy cell which thus decelerates the piston and commences its downstroke.

PNEUMATIC DRILLING DEVICE

A pneumatic drilling device comprising: an impact manifold or cylinder in fluid communication with a rotary air manifold or gear box; and a single air inlet. The single air inlet may be in fluid communication with the impact manifold or cylinder.

PNEUMATICALLY DRIVEN REVERSE IMPACT DEVICE

PNEUMATICALLY DRIVEN REVERSE IMPACT DEVICE A device for removing pins, nails, dowels, rods, and the like from material which includes wood, metal, concrete, and human and animal bone, includes a pneumatically actuated piston producing a reverse impact striking effect which causes extraction of the pin from the material. The device includes a main housing comprising a tool handle, an elongated barrel partially mounted in the tool handle, and a muffler housing fitted on the barrel and abutting the tool handle. A central chamber extends the length of the barrel, and disposed within the central chamber is a shaft which is adapted for linear reciprocal movement therein. An anvil is mounted at the inner end of the shaft and a tool holder is mounted at the opposite end of the shaft. Slidably disposed on the shaft is a piston which is adapted for linear reciprocable movement thereon for forcibly striking the anvil. An upper valve block, a lower valve block, and a flipper valve positioned therebetween ...

Durch Pressluft betriebene Handramme.

Steuerung für Pressluftgeräte

Steuerungseinrichtung für Pressluftgeräte

Einrichtung zum Befestigen von Platten an parallelen stabförmigen Teilen

Impulsgeber für periodisch arbeitende pneumatische Antriebe

Pneumatisches Hämmergerät

Bohrhammer

Einrichtung zur Verhinderung der Leerlaufbetätigung von Schlagwerkzeugen

MASCHINE ZUR NIVELLIERUNG EINER FAHRBAHNOBERFLAECHE.

SCHLAGGERAET MIT EINEM SCHLAGWERKZEUG.

Kraftgetriebenes Schlagwerkzeug

Outil à percussion pneumatique

Vibrator

PNEUMATICALLY OPERATION IMPACT EQUIPMENT.

PNEUMATIC PERCUSSIVE TOOL, IN PARTICULAR FOR BONE WORKING ON TOOLS.

Tool with compressed-air percussion

Sophisticated pneumatic drill

Control device for compressed-air tools

Pneumatic drill

Improvements with the control drives for tools with percussion actuated by an agent under pressure

Improvements with the pneumatic peaks

Improvements with the distributors for pneumatic strikers

Pneumatic drill

Improvement with the blocking of the screwed parts

Pneumatic drill

Distributor for pneumatic drills

IMPACT AIR DRIVEN TOOL

ROAD LEVELLING MACHINE

Tool with percussion

Thermal transfer receiving sheet

PNEUMATIC UNIT OF PERCUSSION HAS WORK TOOLS REMOVABLE.

Improvements to air hammers

Pneumatic drill hammer comprising a boost chamber and a drilling rig comprising such a drill hammer

The invention relates to a pneumatically operated drill hammer (1), comprising a piston (3) and a distributor (5) axially arranged relative each other in a housing (7), the piston (3) being arranged to be moved axially between a first position and a second position. The drill hammer (1) further comprises a pneumatic drive system, comprising a drive chamber (11), a return chamber (13) and a plurality of channels (15) for distribution of drive gas in said drive system. The return chamber (13) is arranged at a lower side (17) of the piston (3) and the drive chamber (11) is arranged at an upper side (19) of the piston (3), wherein the drive chamber (11) is defined by a variable space enclosed by at least the housing (7), the piston (3) and the distributor (5). The drive chamber (11) comprises at least one inlet port (21) and at least one exhaust port (23) arranged at a circumference of the drive chamber (11), wherein pressurization of the pneumatic drive system alternates pressurization of ...

Slagverk

PERCUSSION TOOL FOR SURGICAL INSTRUMENTS

A percussion tool for surgical instruments comprises a sleeve-shaped handle, a tool holder which can slide longitudinally in the handle, and a driven piston which oscillates longitudinally in the handle. The piston has two impact faces which impinge on corresponding contact faces on the tool holder to which they impart impulses in opposite directions. In order to selectively produce impulses in the direction of percussion and in the direction of withdrawal without resetting the tool, the actual piston stroke in the handle is limited so that it is less than the double impact stroke which the piston would have to travel from impact of the first impact face on the first contact face until impact of the second impact face with the second contact face if the tool holder were fixed in the handle. The tool holder also moves in the handle relative to both the handle and the piston.

Apparatus with two end positions generating a reciprocating motion

An apparatus with two limit positions and generating a reciprocating motion, comprises a first moving part (4a, 4b) and a second moving part (16a, 16b) between which parts (4a, 4b; 16a, 16b) a pressurized drive medium (38a, 38b) such as compressed air, is disposed to simultaneously displace the moving parts (4a, 4b; 16a, 16b) in mutually opposite directions. At least the first moving part (4a, 4b) is actuated, by a constantly present force, for example by the pressure of the driving media (38a, 38b) applied on at least one surface of the first moving part (4a, 4b), in the forward direction under tensioning of an associated force accumulator (20a), for example a spring. The pressurized drive medium (38a, 38b) is also applied between the first and second moving parts (4a, 4b; 16a, 16b) such that the second moving part (16a, 16b) is disposed, in the forward direction, to tension an associated force accumulator (19a, 19b) under simultaneous cancelling of the load on the force accumulator (20a ...

PNEUMATIC ENGINE OR TOOL.

Pneumatic tool driven by pulsating air

Exhaust control for air hammers

Device for reversing the pressure on a piston

Changing pressure biassing of impact piston of pneumatic hammer The piston (21) moves to and fro in a housing or work cylinder (2) and the work chambers (22,23) in it are connected alternately to a pressure source through control mechanism (11) in the form of a ball. The active face of the sealing seats has the shape of the sleeve face of a truncated cone. The diameter of the sealing seats and that of the ball are measured so that the circular shaped sealing line or the same contact line of the ball in the sealing seat can be formed in an area at a distance of at least 0.02 times the diameter of the control ball between the upper and lower boundary of the active face of the sealing seats. The mean diameter of the sealing seats is 0.86 to 0.55 times preferably 0.82 to 0.68 times the diameter of the ball-shaped control mechanism. The ball shaped control mechanism weighs less than 7.8 grams per cubic centimetre of ball volume.

Knocker with self-control

Пневматический ударный механизм

Изобретение относится к строительству и горной промышленности, в частности к пневматическим устройствам ударного действия. Пневматический ударный механизм содержит цилиндрический корпус с выпускными каналами, кольцевой фланец со сквозным центральным отверстием, рабочий инструмент с хвостовиком, ступенчатый ударник со штоковой частью, установленный в центральном отверстии кольцевого фланца стержень с поршневой частью с винтовым каналом-пазом, кольцевую камеру пневматического буфера, втулку цилиндрического корпуса с отверстием для пропуска штоковой части, камеру сетевого воздуха со стороны кольцевого фланца с каналами перепуска, камеру холостого хода со стороны хвостовика рабочего инструмента. Внутри втулки цилиндрического корпуса расположена распределительная камера. Каналы перепуска постоянно сообщают камеру сетевого воздуха с распределительной камерой. Относительно цилиндрического корпуса закреплен стакан с каналом для подвода воздуха. Наружная боковая поверхность штоковой части ступенчатого ...

Пневматический ударный механизм

Изобретение относится к строительству и горной промышленности, в частности к пневматическим устройствам ударного действия. Пневматический ударный механизм содержит цилиндрический корпус с выпускными каналами, кольцевой фланец со сквозным центральным отверстием, рабочий инструмент с хвостовиком, ступенчатый ударник со штоковой и поршневой частями, установленный в центральном отверстии кольцевого фланца стержень с поршневой частью с винтовым каналом-пазом, постоянно находящимся в осевом канале ступенчатого ударника, кольцевую камеру пневматического буфера, втулку цилиндрического корпуса с отверстием для пропуска штоковой части ударника, образующую со стороны кольцевой камеры пневматического буфера кольцевой перешеек, ограничивающий величину перемещения ступенчатого ударника, закрепленный относительно цилиндрического корпуса стакан с каналом для подвода воздуха, кольцевую распределительную камеру во втулке цилиндрического корпуса, камеру сетевого воздуха со стороны кольцевого фланца с каналами ...

Пневматический ударный механизм

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 120 246 A (51) МПК E21B 1/30 (2006.01) E21B 1/38 (2006.01) E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017120246, 08.06.2017 Приоритет(ы): (22) Дата подачи заявки: 08.06.2017 (43) Дата публикации заявки: 10.12.2018 Бюл. № Адрес для переписки: 630008, г.Новосибирск, ул. Ленинградская, 113, НГАСУ (Сибстрин), отдел ПЛР R U (57) Формула изобретения 1. Пневматический ударный механизм, содержащий цилиндрический корпус с выпускными каналами, кольцевой фланец со сквозным центральным отверстием, крышки с впускным отверстием, рабочий инструмент с хвостовиком, ступенчатый ударник со штоковой и поршневой частями, установленными в центральном отверстии кольцевого фланца стержень с поршневой частью с каналом-пазом, постоянно находящимся в сквозном осевом отверстии ступенчатого ударника, втулку цилиндрического корпуса с отверстием для пропуска штоковой части ступенчатого ударника и образующим во втулке кольцевой перешеек, ограничивающий величину перемещения ступенчатого ударника, закрепленный относительно цилиндрического корпуса стакан с каналом для подвода воздуха, кольцевую распределительную камеру во втулке цилиндрического корпуса, камеру сетевого воздуха в крышке со стороны кольцевого фланца, ограничивающий величину перемещения ступенчатого ударника, закрепленный относительно цилиндрического корпуса стакан с каналом для подвода воздуха, кольцевую распределительную камеру во втулке цилиндрического корпуса, камеру сетевого воздуха в крышке со стороны кольцевого фланца, камеру-ресивер между стаканом и крышкой, камеру холостого хода со стороны хвостовика рабочего инструмента; удерживаемого пружиной относительно цилиндрического корпуса, при чем канал-паз на боковой поверхности поршневой части стержня выполнен с изменяющимся геометрическим сечением, увеличивающимся от боковой поверхности поршневой части со стороны стержня до окончания его ...

УДАРНЫЙ ПОРШЕНЬ

Pneumatisches Werkzeug

Pressluftwerkzeug mit einem in die Bahn des Kolbens ragenden Anlassorgan

Druckluftschaber

Hydraulisches Schlagwerkzeug.

Schlagend wirkendes Pressluftwerkzeug

Improvements in or relating to pneumatic hammers

... 171,671. Bailly, A. Nov. 19, 1920, [Convention date]. Fluid-actuated gears.-A hammer for chiselling, punching, riveting, &c., and for use in mines, is provided with a differential main piston d constantly subjected on the left to fluid-pressure supplied through an inlet f, and alternately put to pressure and exhaust on the right by a fluidactuated differential piston valve LKM, which is constantly subjected to fluid-pressure on the stem M. During the piston motion to the right, when the port H is opened, the valve is moved to the right, thereby opening passages hj, Q to fluid-pressure. The motion of the main piston is reversed. When the piston passes port H. the right-hand fluid supply is cut off. When the piston leaves the central stem m, an auxiliary exhaust passage n, o, p is opened. The consequent reduction in pressure enables the pressure in the stem M to effect the reversal of the valve and the opening of the main exhaust through ports Q, R.

Improvements in fluid-pressure distributing means for percussive tools

... 352,310. Percussive tools. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, New Jersey, U.S.A. Sept. 5, 1930. No. 26529. Convention date, Nov. 27, 1929. [Class 124.] In valveless percussive tools wherein the piston effects the distribution of the pressure fluid which is constantly admitted through a passage V in a plug S to a chamber R in the piston, an annular groove Y in the piston controls the supply to the forward cylinder end through a passage b in the plug and cylinder. A port X in the plug, the groove Y in the piston, and a neck Z in the plug S enables fluid to pass to the rear of the piston. The exhaust ports D, E are controlled by the piston. An annular groove C provides an ample charge of pressure fluid to assure a powerful blow, and also provides a clearance volume to prevent compression retarding the piston.

Vibration reduction system

Apparatus for reflex-percussive cutting of concrete etc

PCT No. PCT/GB89/00117 Sec. 371 Date Aug. 3, 1990 Sec. 102(e) Date Aug. 3, 1990 PCT Filed Feb. 8, 1989 PCT Pub. No. WO89/07690 PCT Pub. Date Aug. 24, 1989.The machine includes a reciprocating piston/hammer (10) assembly, which is constrained against rotation in the cylinder (8). This allows the cutting bit to apply concentrated action along a line, and thus is useful for cutting grooves. The cutting bars (40) are arranged in sequence to enter progressively deeper into the groove. Many bits are arranged side by side, for cutting parallel grooves simultaneously.

ROAD LEVELLING MACHINE

... 1407206 Road levelling machine KLARCRETE LTD 21 Sept 1972 [22 Sept 1971] 44181/71 Heading EIG [Also in Division B4] A road levelling machine for breaking away irregularities in a road surface includes a power propelled chassis 10 mounting a power driven hammer unit 17 (Div. B4) for imparting blows to the road surface and a sensor 19 or 20 on the chassis which detects height irregularities in the road surface and regulates the speed of the chassis in response thereto. The leading sensor 19 may operate to switch off the hammer unit in the absence of any irregularities. The hammer unit includes a plurality of hammers arranged transversely of the machines' direction of travel and mounted on a carriage 13 which is reciprocated on rails 14 transversely of said direotion of travel, the carriage 13 being adjustable in height on rails 46. The sensors 19, 20 detect variations in the distance from the chassis 10 to the road surface and comprise pivotal levers each having one 'end engaging the road ...

Vibrator

... 814,240. Excavators; percussive tools. INDUSTRIKOMPANIET A.B. Aug. 8, 1957 [May 24, 1957], No. 25028/57. Class 124. [Also in Groups XXI and XXIX] A vibrator, consisting of cylinder 10, differential piston 11 and piston rod 12, has means for high speed oscillation, consisting of a slide valve 13 and springs 25, 26 which are always acted on by the piston and force the slide valve to follow, with some timelag, the motion of the piston. The piston rod side of the piston is always open to fluid pressure, and the action of the slide valve is such that it alternatively connects the other side to pressure and exhaust. The vibrator may be coupled with the excavating elements of an excavating and loading machine. In another embodiment, the block containing the valve forms one end of the cylinder, and the whole is sufficiently narrow to be used as a deep drilling machine. Two such vibrators may be mounted on a tube which is rotated in the drilling hole to obtain a core of the material being drilled ...

Improvements in or relating to pneumatic tools

... 849,246. Percussive tools. BROOM & WADE Ltd., BROOM, H. S., and JAMES, E. B. March 26, 1959 [April 1, 1958], No. 10494/58. Class 124. A pneumatic percussive tool having a valve operated by the ratio of supply air pressure to the pressure in the cylinder, has at least one cushioning air chamber in connection with the cylinder at the end remote from the tool steel, the connection being through a metering hole of small dimensions relative to the air chamber. As shown, a pneumatic tool has a piston 51 operating in a cylinder 12, an anvil 45 transmitting the blow to a steel 48, and a valve 28 of cup shape having a flange moving between two seatings 26a and 26b. The valve is held in position with the flange seating on 26b by the pressure of compressed air entering through a valve 18, in this position the piston is driven upwardly. When the piston head 53 passes an exhaust port 55 air is compressed above the piston and some of this pressure is relived by air passing through one or more metering ...

Improvements in or relating to control valves

... 811,727. Portable drilling machines. ARO EQUIPMENT CORPORATION Aug. 31, 1955 [Dec. 20, 1954], No. 25002/55. Class 83 (3). [Also in Group XXIX] In a pneumatic drill 10, a valve for controlling the supply and exhaust of compressed-air to and from a double-acting reciprocating motor 12, Fig. 1, and a rotary-vane motor 16, to feed and rotate the tool 18 respectively, comprises a valve-spool 22, Fig. 2, slidable in the bore 24 of a casing 14 on the end of the motor cylinder 12, valves 26, 28 manuallyoperable to vent end-chambers 38, 40, respectively of the bore 24, and a valve 30, operable on the piston 70 reaching the end of its forward stroke, to automatically reverse the piston. Air admitted to the port 56 passes to a chamber 64 to move the piston forwardly, and through the bore 68 of the piston-rod to rotate the vanes of the motor, whilst air admitted to the port 54 passes through a duct 58, annular groove 60 and a duct 62 to a chamber 72 to return the piston.

METHOD AND APPARATUS FOR BREAKING A HARD COMPACT MATERIAL SUCH AS ROCK OR CONCRETE

... 1535027 Rock-breaking appliances INSTITUT CERAC SA 6 May 1977 [25 May 1976] 19045/77 Heading E1F [Also in Division B5] A method of breaking a hard, compact material, e.g. rock or concrete, involves drilling a hole into the material, gripping a region of the wall of the hole by applying a radially, outwardly directed force thereto and then applying an axially outwardly directed force to the gripping region, the forces being of sufficient magnitude so as to cause cracks to arise in the wall of the hole and in the case of at least one of the forces, said force or forces is or are generated by means of sequentially repeated axially directed impacts. The apparatus shown involves only means for applying and creating the forces. A second embodiment has additional means in its construction for drilling the hole as well as applying and creating the forces. The first means comprises a hammer piston making impacts of variable magnitude on one or a pair of shoulders 5, 4 on a rod 3 carying a wedge ...

Improvements in pneumatic tools

... 157,214. Jacobeit, K. Oct. 24, 1918, [Convention date]. fluid-actuated gears; beat or lift valves; slide valves, piston.-In a percussive tool wherein a ball valve is reversed by compression and the exhaust controlled by the main piston, undue compression is avoided by providing an auxiliary exhaust through piston-controlled ports f, f<1> which communicate with the main exhaust ports e, e<1> through grooves in The piston. The auxiliary ports may be formed in and communicate with the sides of the piston.

Sealing arrangement in rotating control valve of pressure fluid-operated percussion device

The invention relates to a sealing arrangement in a rotating control valve of a pressure fluid-operated percussion device, to which percussion device a tool is mountable movable in its longitudinal direction, the percussion device containing a work chamber and a transmission piston mounted movable to compress the tool suddenly to generate a stress pulse to the tool, inlet and outlet channels for conducting pressure fluid to the percussion device and away from it, and a control valve having a rotating switch member with channels to connect inlet and outlet channels through the channels of the switch member to alternately conduct the pressure fluid through the channels to the work chamber and, correspondingly, away from the work chamber, and in the inlet channel of the pressure fluid at the switch member side end thereof at least one sealing sleeve for the purpose of sealing the inlet channel to the switch member. In the arrangement, the sealing sleeve is mounted obliquely to the surface of the switch member and the switch member side surface of the sealing sleeve is essentially in the shape of the switch member surface.

Hydraulic impact mechanism for use in equipment for treating rock and concrete

A hydraulic impact mechanism, of the valveless impact mechanism type, comprising a pre-charged gas accumulator connected to a working chamber in order to make possible impact mechanisms for equipment for rock drilling and hydraulic breakers that is lighter, cheaper and more sustainable from the point of view of material fatigue. Furthermore, a gas accumulator of piston type with an integral brake chamber ( 240, 250, 360 ) and a piston ( 220, 320 ) designed to fit into the said brake chamber ( 240, 250, 360 ).

DEVICE AND METHOD FOR ROCK AND - CONCRETE MACHINING

The invention concerns a hydraulic, valveless impact mechanism for use in equipment for the machining of at least one of rock and concrete comprising a machine housing () with a cylinder bore, a piston () mounted such that it moves within this bore arranged to carry out when in operation repetitive reciprocating motion relative to the machine housing and in this way to deliver impact directly or indirectly on a tool connectable to the equipment for machining at least one of rock and concrete, and where the piston includes a driving part () that separates a first drive chamber () and a second drive chamber (), with an effective volume that is greater than that of the first drive chamber. The impact mechanism comprises further a starting means arranged such that it creates for a short duration, during an initial pressurisation of the impact mechanism, a connection between the second drive chamber and the first drive chamber, where the said connection can remain during one complete stroke cycle, in order in this way to set the piston into self-oscillation and avoid the piston remaining stationary at an equilibrium position. Furthermore, the invention concerns a rock drill with such an impact mechanism, and a rock drill rig comprising such a rock drill, and further a hydraulic release valve for the start of valveless hydraulic impact mechanisms. The invention concerns in addition to this a starting method for a hydraulic valveless impact mechanism. 1. A hydraulic , valveless impact mechanism for use in equipment for machining at least one of rock and concrete comprising a machine housing with a cylinder bore , a movable piston mounted in this bore and arranged to carry out repetitively reciprocating motion during operation relative to the machine housing , and in this way to deliver impacts directly or indirectly against a tool connectable to the equipment for machining at least one of rock and concrete , and where the piston includes a driving part that separates a ...

SURGE ACCUMULATOR FOR HYDRAULIC HAMMER

A hydraulic hammer is disclosed that includes at least one accumulator that is connectable to a hydraulic circuit disposed in the housing of the hammer. The accumulator includes an annular base coupled to a cover with a diaphragm sandwiched therebetween. The annular base includes a proximal end and a distal end. The proximal end of the annular base defines a first central opening. The proximal end of the base in the housing define an annular inlet that encircles the first central opening and that is in communication with the first central opening. The cover also includes a proximal end and a distal end. The proximal end of the cover is coupled to the distal end of the base with the outer periphery of the diaphragm sandwiched therebetween. 1. An accumulator that is connectable to a hydraulic circuit disposed in a housing , the accumulator comprising:an annular base including a proximal end and a distal end, the proximal end of the base defining a first central opening, the proximal end of the base and the housing defining an annular inlet that encircles the first central opening and that is in communication with the first central opening;a diaphragm having an outer periphery;a cover including a proximal end and a distal end, the proximal end of the cover coupled to the distal end of the base with the outer periphery of the diaphragm sandwiched therebetween.2. The accumulator of wherein the distal end of the base includes a first annular projection claim 1 , the proximal end of the cover includes a second annular projection claim 1 , the first and second annular projections being directed at one another and sandwiching the outer periphery of the diaphragm therebetween.3. The accumulator of wherein the cover is connected to the housing with by at least one fastener and the base is sandwiched between the cover and the housing.4. The accumulator of wherein the distal end of the cover includes a gas inlet port for receiving pressurized liquid.5. The accumulator of wherein ...

ROTARY-PERCUSSIVE HYDRAULIC PERFORATOR PROVIDED WITH A CONTROL CHAMBER PERMANENTLY CONNECTED TO A LOW-PRESSURE ACCUMULATOR

The rotary percussive hydraulic perforator comprises a body; a fitting; a striking piston configured to strike the fitting; a stop piston including a front face facing the fitting and a rear face situated opposite to a rear wall of a cavity receiving the piston stop; and a main hydraulic supply circuit including a high pressure fluid supply conduit and a low pressure fluid return conduit. The body and the stop piston delimit a first control chamber permanently connected to the high pressure fluid supply conduit and configured to bias the stop piston forwards, and a second control chamber configured to bias the stop piston forwards and permanently connected to a low pressure accumulator connected to the low pressure fluid return conduit. 1. A rotary percussive hydraulic perforator comprising:a body,a fitting intended to be coupled to at least one drilling bar equipped with a tool,a striking piston slidably mounted inside the body along a striking axis and configured to strike the fitting,a stop piston which is slidably mounted in a cavity of the body along an axis of displacement substantially parallel to the striking axis, the stop piston including a front face facing the fitting and intended to position the fitting in a predetermined equilibrium position with respect to the striking piston, and a rear face opposite to the face front and situated opposite to a rear wall of the cavity, anda main hydraulic supply circuit configured to control an alternating sliding of the striking piston along the striking axis and to control a sliding of the stop piston along the displacement axis, the main hydraulic supply circuit including a high pressure fluid supply conduit and a low pressure fluid return conduit,the body and the stop piston delimiting at least partially a first control chamber permanently connected to the high pressure fluid supply conduit and configured to bias the stop piston forwards, the rotary percussive hydraulic perforator further comprising a connecting ...

BREAKING DEVICE

A breaking device includes a frame, an impact device having a pressure chamber with a rear pressure chamber and a front pressure chamber. The breaking device further includes a first low pressure port at the rear pressure chamber, a first low pressure channel and a first low pressure accumulator connected to the first low pressure channel. The breaking device further includes a second low pressure port at the rear pressure chamber substantially opposite to the first low pressure port, second low pressure channel and a second low pressure accumulator connected to the second low pressure channel. The first low pressure accumulator and the second low pressure accumulator are arranged at the outer circumference of the frame of the breaking device at different positions in the axial direction of the breaking device. 1. A breaking device comprising:a frame;an impact device including a pressure chamber and a percussion piston, which is an elongated object contributing to divide the pressure chamber into a rear pressure chamber and a front pressure chamber;at least one first low pressure port in the frame at the rear pressure chamber and at least one first low pressure channel extending from the at least one first low pressure port to an outer circumference of the frame of the breaking device;at least one first low pressure accumulator connected to the at least one first low pressure channel at the outer circumference of the frame of the breaking device;at least one second low pressure port in the frame at the rear pressure chamber substantially opposite to the at least one first low pressure port;at least one second low pressure channel extending from the at least one second low pressure port to the outer circumference of the frame of the breaking device; andat least one second low pressure accumulator connected to the at least one second low pressure channel at the outer circumference of the frame of the breaking device, wherein the at least one second low pressure ...

HYDRAULIC HAMMERING DEVICE

Provided is a hydraulic hammering device having improved hammering efficiency and of low cost. A piston has a valve switching groove between large-diameter sections thereof. A cylinder has three control ports at positions corresponding to the valve switching groove. A switching valve mechanism has a valve presser for always pressing a valve in one direction and also has a valve controller for moving, when supplying pressurized oil, the valve in the opposite direction against the pressing force of the valve presser. A valve control port communicates with the valve controller so as to supply the pressurized oil to the valve controller and is separated from a piston front chamber and a piston rear chamber. Only either a piston retraction control port or a piston advance control port communicates with the valve control port depending on advance or retraction of the valve switching groove. 1. A hydraulic hammering device comprising:a cylinder;a piston that is slidably fitted into the inside of the cylinder;a piston front chamber and a piston rear chamber that are defined between an outer peripheral surface of the piston and an inner peripheral surface of the cylinder and are arranged separated from each other in axially front and rear direction; anda switching valve mechanism configured to switch each of the piston front chamber and the piston rear chamber into communication with either a high pressure circuit or a low pressure circuit in an interchanging manner; and which is configured to hammer a rod to be hammered, by making the piston advance and retract in the cylinder,wherein the piston has a large-diameter section, small-diameter sections that are individually disposed in front and the rear of the large-diameter section, and a valve switching groove that is formed substantially at an axially middle portion of the large-diameter section,the switching valve mechanism has a valve chamber that is formed in the cylinder in a non-concentric manner with the piston, a ...

Hydraulic Hammer

A hydraulic hammer for a working machine configured for digging a surface includes a housing, a chisel, sensors, and a controller. The housing is coupled to the working machine. The chisel is partially enclosed by the housing and extendable from the housing for digging the surface at a contact location. Each of the sensors is configured for generating a signal indicative of a projecting distance between one of the sensors and the surface. The controller is configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees.

PERCUSSION DEVICE

The invention relates to a percussion device comprising a percussion mechanism housing which has a receiving bore in which a percussion piston is mounted such that it is movable along the longitudinal axis, wherein at least one percussion mechanism guide surface having an inner diameter is formed in the receiving bore and at least one percussion piston guide surface having an outer diameter is formed on the percussion piston. In order to avoid radial contact between the percussion piston and the percussion mechanism housing as far as possible, to reduce the volume of oil leakage through the gap of the guide surface and to prevent wear on the guide surfaces and on the lands between the seals, according to the invention the percussion mechanism guide surface has, at least in some regions, an inner diameter that increases non-linearly in the axial direction and/or the percussion piston guide surface has an outer diameter that decreases non-linearly in the axial direction. 1. An impact tool with an impact mechanism housing having a receiving bore in which an impact piston is mounted such that it is movable along the longitudinal axis , wherein at least one impact mechanism guide surface having an inner diameter is formed in the receiving bore and at least one impact piston guide surface having an outer diameter is formed on the impact piston , wherein the impact mechanism guide surface has in the axial direction at least in regions an inner diameter that increases non-linearly and/or that the impact piston guide surface has an outer diameter that decreases non-linearly in the axial direction.2. The impact tool as claimed in claim 1 , wherein the inner diameter of the impact mechanism guide surface has a diameter that increases non-linearly toward at least one of the ends.3. The impact tool as claimed in claim 2 , wherein the impact mechanism guide surface guides a piston rod wherein the inner diameter of the impact mechanism guide surface has a diameter that increases ...

Accumulator

An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together

HAMMER ASSEMBLY

A hammer including a housing and a piston arranged for reciprocating movement within the housing is disclosed. The hammer further includes a head assembled on the housing and defining a chamber for holding a pressurized gas and a wall configured to abut the housing and defining a gas discharge passage extending between the chamber and the housing. A plug is positioned in the gas discharge passage and configured to move or deform under pressure of the pressurized gas in the chamber. 1. A hammer comprising:a housing;a piston arranged for reciprocating movement within the housing;a head assembled on the housing and defining a chamber for holding a pressurized gas; the head comprising a wall configured to abut the housing and defining a gas discharge passage extending between the chamber and the housing; anda plug positioned in the gas discharge passage and configured to move or deform under pressure of the pressurized gas in the chamber on separation of the head from the housing.2. The hammer of claim 1 , wherein the plug abuts the housing.3. The hammer of claim 1 , wherein the plug defines a clearance with the gas discharge passage.4. The hammer of claim 3 , wherein the plug comprises of a seal configured to engage the gas discharge passage.5. The hammer of claim 1 , wherein the head is assembled on the housing by bolts.6. The hammer of claim 1 , wherein the pressurized gas is nitrogen.7. The hammer of claim 1 , wherein the gas discharge passage has a first end exposed to the chamber and a second end having a receptacle configured to receive the plug.8. A hammer comprising:a first member and a second member configured for attachment to each other and defining a chamber for holding a pressurized gas;a gas discharge passage defined in the first member and extending between the chamber and an outside surface of the first member;a plug inserted in the gas discharge passage, the plug retained in the gas discharge passage against the pressure of the gas in the chamber by ...

HYDRAULIC HAMMER HAVING CO-AXIAL ACCUMULATOR AND PISTON

A hydraulic hammer is disclosed having a piston and an accumulator membrane disposed external and co-axial to the piston. Additionally, a sleeve is disposed between the piston and accumulator membrane, wherein the sleeve has a plurality of radial passages formed therein that fluidly connect the accumulator membrane with the piston. 1. A method of operating a hydraulic hammer , comprising:receiving pressurized fluid at an inlet;directing the pressurized fluid axially into an accumulator membrane;redirecting the pressurized fluid radially inward from the accumulator membrane toward a piston; andbiasing the piston upward with the pressurized fluid.2. The method of claim 1 , further including selectively blocking and passing pressurized fluid to a valve with movement of the piston.3. The method of claim 2 , further including:directing the pressurized fluid axially away from a tip of the piston to the valve; andbiasing the valve upward with the pressurized fluid.4. The method of claim 3 , further including selectively directing the pressurized fluid into a fluid chamber located axially adjacent to the valve.5. The method of claim 4 , further including biasing the piston downward claim 4 , away from the valve claim 4 , with the pressurized fluid in the fluid chamber.6. The method of claim 5 , wherein biasing the piston upward increases gas pressure within a gas chamber located axially adjacent to the fluid chamber.7. The method of claim 6 , further including biasing the piston downward and away from the valve with the pressurized gas in the gas chamber.8. The method of claim 7 , further including directing the pressurized fluid from the fluid chamber radially outward and through a plurality of outlet apertures located between the annular groove and gas chamber. This is a divisional of application Ser. No. 13/837,969, filed Mar. 15, 2013, which is incorporated herein by reference.The present disclosure is directed to a hydraulic hammer and, more particularly, to a ...

PNEUMATIC DRILLING DEVICE

A pneumatic drilling device comprising: an impact manifold or cylinder in fluid communication with a rotary air manifold or gear box; and a single air inlet. The single air inlet may be in fluid communication with the impact manifold or cylinder. 1. A pneumatic drilling device comprising:an impact manifold or cylinder in fluid communication with a rotary air manifold or gear box; anda single air inlet.2. The pneumatic drilling device of wherein the single air inlet is in fluid communication with the impact manifold or cylinder.3. The pneumatic drilling device of further comprising a flushing tube made of metal.4. The pneumatic drilling device of further comprising no grease points.5. The pneumatic drilling device of further comprising one or more internal ports to allow an oil and air mixture introduced into the single air inlet to lubricate one or more internal parts of the pneumatic drilling device.6. The pneumatic drilling device of further comprising a heat shield.7. The pneumatic drilling device of further comprising a fixed exhaust that does not swivel. This application claims the benefit of provisional patent application U.S. Ser. No. 62/354,141 filed Jun. 24, 2016, which is incorporated by reference herein for all purposes.The present disclosure generally relates to the field of pneumatic drilling devices. More precisely, the present invention concerns pneumatic drilling devices particularly adapted for drilling blast furnace tap holes.BACKGROUND-FIELD OF THE DISCLOSUREConventional pneumatic drilling devices , such as for rock drilling, e.g., Ingersoll Rand VL-140, and as shown and described in U.S. Pat. Nos.: 4,084,646; 4,718,500 and 5,402,854 (all of which are incorporated by reference herein for all purposes). Such known pneumatic drilling devices, however, do not work well in the harsh environment of a blast furnace or other metal making furnace or vessel.It would be advantageous to have a pneumatic drilling device that works well the harsh environment ...

CHARGING SYSTEM FOR HYDRAULIC HAMMER

A charging system for a hydraulic hammer is disclosed. The charging system includes a charge plug. The charge plug is disposed on an opening defined in the wall housing connected to the top end of the power cell of a hammer. The charge plug is fluidly communicated to the chamber via a conduit. The charge plug includes a first compartment. The first compartment is configured to receive a first chemical substance. The charge plug also includes a second compartment. The second compartment is configured to receive a second chemical substance. The first compartment and the second compartment are covered by a membrane. A pressure difference causes collapsing of the membrane to allow the first chemical substance and the second chemical substance is allowed to react with each other. The reaction of the first chemical substance and the second chemical substance pressurizes the air within the chamber to a desired pressure. 1a wall housing connected to a top end of the power cell, and defining a chamber therein, wherein a first end of a piston slidably disposed within the power cell is received within the chamber and a second end is configured to engage with a tool, and wherein the chamber is adapted to contain pressurized air for moving the piston between a first position and a second position; and a first compartment configured to receive a first chemical substance; and', 'a second compartment disposed adjacent to the first compartment, the second compartment configured to receive a second chemical substance, wherein each of the first compartment and the second compartment is covered by a membrane,', 'wherein the piston moves from the first position to the second position during charging of the hydraulic hammer to create a pressure difference within the chamber, and wherein the pressure difference causes collapsing of the membrane to allow the first chemical substance and the second chemical substance react with each other, and wherein reaction of the first chemical ...

ROCK DRILLING ARRANGMENT AND MACHINE

A rock drilling arrangement includes an impact device having a frame, pressure chambers in the frame, and a piston arranged in the impact device. The arrangement further includes a rear mounting arrangement for attaching the impact device to a carriage, a front mounting arrangement for attaching the impact device to a machine component, at least one fore pressure accumulator arranged on a front side of the rear mounting arrangement in an axial direction of the piston, and at least one rear pressure accumulator arranged on a back side of the rear mounting arrangement. The fore pressure accumulator and the rear pressure accumulator are connected to one of the pressure chambers and arranged to absorb pressure fluctuations in the pressure chambers. 1. A rock drilling arrangement comprising:an impact device including a frame, a plurality of pressure chambers in the frame, and a piston arranged in the impact device;a rear mounting arrangement arranged for attaching the impact device to a carriage, the rear mounting arrangement having a front side and a back side;a front mounting arrangement arranged for attaching the impact device to a machine component;at least one fore pressure accumulator arranged on front side of the rear mounting arrangement in an axial direction of the piston; andat least one rear pressure accumulator arranged on back side of the rear mounting arrangement, the at least one fore pressure accumulator and the at least one rear pressure accumulator being connected to one of the plurality of pressure chambers and arranged to absorb pressure fluctuations in the plurality of pressure chambers.2. The arrangement as claimed in claim 1 , wherein the at least one fore pressure accumulator comprises at least two fore pressure accumulators.3. The arrangement as claimed in claim 1 , wherein the at least one fore pressure accumulator comprises four fore pressure accumulators.4. The arrangement as claimed in claim 1 , wherein the at least one rear pressure ...

Piston and Magnetic Bearing for Hydraulic Hammer

A hydraulic hammer includes a power cell. A work tool is partially received in, and movable with respect to, the power cell. A sleeve is positioned in the power cell that defines a centerline. A piston is concentrically positioned in the sleeve and movable in the sleeve between a first position in contact with the work tool and a second position out of contact with the work tool. A magnetic guide system includes at least one of a first magnetic guide component disposed in the piston and at least one of a second magnetic guide component disposed in the sleeve that interact to produce magnetic repellent forces therebetween to urge the radial position of the piston towards the center line. 1. A hydraulic hammer , comprising:a power cell;a work tool partially received in, and movable with respect to, the power cell;a sleeve positioned in the power cell and defining a centerline;a piston with a plurality of hydraulic surfaces, the piston concentrically positioned in the sleeve and movable in the sleeve between a first position in contact with the work tool and a second position out of contact with the work tool; anda magnetic guide system including at least one of a first magnetic guide component disposed in the piston and at least one of a second magnetic guide component disposed in the sleeve that interact to produce magnetic repellent forces therebetween to urge the radial position of the piston towards the centerline.2. The hydraulic hammer of claim 1 , wherein the magnetic guide system includes an electrodynamic bearing system.3. The hydraulic hammer of claim 2 , wherein the first magnetic guide component includes a first ring magnet and a second ring magnet disposed in an axially spaced apart configuration in the piston.4. The hydraulic hammer of claim 3 , wherein the second magnetic guide component includes a first conductive cylinder and a second conductive cylinder claim 3 , the first and second conductive cylinders disposed adjacent respective first and second ...

METHOD FOR CONTROLLING A PERCUSSION TOOL POWER SUPPLY PARAMETER

A control method including providing a control device arranged to adjust a supply parameter of a percussion apparatus, providing a control unit arranged to apply a control instruction to the control device, switching on the percussion apparatus, measuring at least one sound data in the vicinity of a predetermined area, transmitting the at least one measured sound data to the control unit, comparing the at least one sound data received by the control unit with a predetermined threshold value, correcting the control instruction of the control device depending on the at least one received sound data, and applying, by means of the control unit, the corrected control instruction to the control device. 1. A control method for controlling a supply parameter of a percussion apparatus actuated by a pressurized incompressible fluid , comprising:providing a control device arranged to adjust a supply parameter of the percussion apparatus,providing a control unit arranged to apply a control instruction to the control device,switching on the percussion apparatusmeasuring at least one sound data in the vicinity of a predetermined area,transmitting the at least one measured sound data to the control unitcomparing the at least one sound data received by the control unit with a predetermined threshold value,correcting the control instruction of the control device depending on the at least one received sound data, andapplying, by means of the control unit, said corrected control instruction to the control device.2. The control method according to claim 1 , wherein the correction step comprises correcting the control instruction such that the supply parameter adjusted by the control device induces sound data lower than the predetermined threshold value.3. The control method according to claim 1 , wherein:if the at least one received sound data is greater than the predetermined threshold value, the correction step comprises correcting the control instruction of the control device so as ...

Variable Volume Accumulator

A hammer assembly including a hammer housing and a work tool movably supported in the hammer housing is provided. A gas chamber is defined in the hammer housing and contains a compressible gas. An accumulator assembly includes an interior space. A barrier divides the interior space into a first interior portion containing a compressible gas and a second interior portion configured to receive a pressurized fluid. The barrier is configured to be movable in response to changing the amount of pressurized fluid in the second interior portion and such that movement of the barrier varies the volume of the first interior portion. The first interior portion is in communication with the gas chamber. A control valve assembly is configured for selectively placing the second interior portion of the accumulator assembly in communication with a pressurized fluid source. 1. A hammer assembly comprising:a hammer housing;a work tool movably supported in the hammer housing;a gas chamber defined in the hammer housing and containing a compressible gas;an accumulator assembly including an interior space, a barrier dividing the interior space into a first interior portion containing a compressible gas and a second interior portion configured to receive a pressurized fluid, the barrier being configured to be movable in response to changing the amount of pressurized fluid in the second interior portion and such that movement of the barrier varies the volume of the first interior portion, the first interior portion being in communication with the gas chamber;a control valve assembly configured for selectively placing the second interior portion of the accumulator assembly in communication with a pressurized fluid source; anda piston movably disposed in the housing and having a first fluid engagement surface configured for engagement with a pressurized fluid for moving the piston in a first direction away from the work tool and thereby compressing the compressible gas in the gas chamber and ...

HYDRAULIC ROTARY-PERCUSSIVE HAMMER DRILL PROVIDED WITH A STOP PISTON

The hydraulic rotary-percussive hammer drill includes a body; a shank; a striking piston configured to hit the shank; a stop piston configured to position the shank in a predetermined balanced position, the body and the stop piston delimiting a first control chamber permanently connected to a high-pressure fluid feed-in conduit and configured to urge the stop piston forwards, and a second control chamber configured to urge the stop piston forwards. The hydraulic rotary-percussive hammer drill comprises a fluidic communication channel opening into the second control chamber, configured to supply the second control chamber with high-pressure fluid and provided with a calibrated orifice. 1. A hydraulic rotary-percussive hammer drill , comprising:a body;a shank intended to be coupled to at least one drill bar equipped with a tool;a striking piston slidably mounted inside the body along a striking axis and configured to hit the shank;a stop piston which is slidably mounted in a cavity of the body according to an axis of displacement substantially parallel to the striking axis, the stop piston including a front face facing the shank and configured to position the shank in a predetermined balanced position with respect to the striking piston, and a rear face opposite to the front face and located opposite a rear wall of the cavity; anda high-pressure fluid feed-in conduit and a low-pressure fluid return conduitthe body and the stop piston delimiting at least partially a first control chamber permanently connected to the high-pressure fluid feed-in conduit and configured to urge the stop piston forwards, the hydraulic rotary-percussive hammer drill further comprising a connecting channel configured to fluidly connect the first control chamber to the low-pressure fluid return conduit when the rear face of the stop piston is located at a distance from the rear wall of the cavity which is larger than a predetermined value,wherein the body and the stop piston further delimiting ...

ROTARY-PERCUSSIVE HYDRAULIC PERFORATOR PROVIDED WITH A STOP PISTON AND A BRAKING CHAMBER

The rotary-percussive hydraulic perforator a body; a shank; a striking piston configured to strike the shank and provided with a braking surface; a braking chamber configured to hydraulically brake the striking piston; a stop piston configured to apply a pushing force on the shank and provided with a bearing surface configured to abut against a stop surface provided on the body, so as to limit the stroke of displacement of the stop piston towards the shank. The rotary-percussive hydraulic perforator is configured such that the bearing surface and the stop surface are axially spaced apart by a predetermined spacing distance simultaneously when (i) the shank bears on the stop piston and is in contact with the striking piston, and (ii) the braking surface is located at an inlet edge of the braking chamber. 1. A rotary-percussive hydraulic perforator comprising:a body;a shank mounted in the body and intended to be coupled to at least one drill bar equipped with a tool;a striking piston slidably mounted inside the body according to a striking axis and configured to strike the shank, the striking piston including a braking surface which extends transversely to the striking axis;a braking chamber configured to hydraulically brake the striking piston when the striking piston exceeds a predetermined striking position, the braking chamber being configured to be partially closed by the braking surface of the striking piston when the striking piston exceeds the predetermined striking position;a stop piston which is tubular and which is slidably mounted inside the body along an axis of displacement substantially parallel to the striking axis, the stop piston being configured to apply a pushing force on the shank, the stop piston comprising a bearing surface configured to abut against a stop surface provided on the body, so as to limit a stroke of displacement of the stop piston towards the shank;wherein the rotary-percussive hydraulic perforator is configured such that the ...

Hydraulic buffer with fast startup

An accumulator assembly includes a vessel having an upper portion and a lower portion. The accumulator assembly includes a flexible membrane extending between the upper portion and the lower portion. The membrane may divide the vessel into a first interior chamber and a second interior chamber. The accumulator assembly includes a receptacle located proximate the vessel. The receptacle may be in fluid communication with the second interior chamber. The accumulator assembly includes a plunger located at least partially within the receptacle.

HAMMER HAVING PISTON SLEEVE WITH SPIRAL GROOVES

A sleeve is disclosed for use with a hammer. The sleeve may have a generally cylindrical body with a first end and a second end. The sleeve may also have a plurality of channels spiraling at least partially around the generally cylindrical body between the first and second ends. 1. A hammer sleeve , comprising:a generally cylindrical body having a first end and a second end; anda plurality of channels spiraling at least partially around the generally cylindrical body between the first and second ends.2. The hammer sleeve of claim 1 , wherein the plurality of channels include:a plurality of first channels each forming a portion of a different pressure passage;a second channel forming a portion of a drain passage; anda third channel forming a portion of a pilot signal passage.3. The hammer sleeve of claim 2 , wherein the plurality of channels further includes a fourth channel forming a portion of a shutoff passage.4. The hammer sleeve of claim 3 , wherein each of the different pressure passage claim 3 , signal passage claim 3 , and shutoff passage spirals through about 90°.5. The hammer sleeve of claim 4 , wherein the drain passage extends from the first end a greater distance toward the second end than each of the different pressure passage claim 4 , the drain passage claim 4 , and the signal passage.6. The hammer sleeve of claim 5 , wherein the drain passage spirals through about 100-360° at a location between the second end of the generally cylindrical body and each of the different pressure passage claim 5 , drain passage claim 5 , and signal passage.7. The hammer sleeve of claim 2 , wherein the plurality of first channels includes four first channels.8. The hammer sleeve of claim 2 , wherein each of the plurality of first channels has at least one of a depth and a width greater than a depth and a width of the second claim 2 , third claim 2 , and fourth channels.9. The hammer sleeve of claim 8 , wherein each of the plurality of first channels claim 8 , second ...

HYDRAULIC HAMMER

A hydraulic hammer for a working machine configured for digging a surface includes a housing, a chisel, sensors, and a controller. The housing is coupled to the working machine. The chisel is partially enclosed by the housing and extendable from the housing for digging the surface at a contact location. Each of the sensors is configured for generating a signal indicative of a projecting distance between one of the sensors and the surface. The controller is configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees. 1. A hydraulic hammer for a working machine configured for digging a surface , the hydraulic hammer comprising:a housing coupled to the working machine;a chisel partially enclosed by the housing and extendable from the housing for digging the surface at a contact location; anda plurality of sensors, each of which is configured for generating a signal indicative of a projecting distance between one of the plurality of sensors and the surface; anda controller configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees.2. The hydraulic hammer of claim 1 , wherein the plurality of sensors comprise a first sensor configured for generating a first signal indicative of a first projecting distance between the first sensor and the surface claim 1 , and a second sensor configured for generating a second signal indicative of a second projecting distance between the second sensor and the surface.3. The hydraulic hammer of claim 2 , wherein the housing comprises a bottom surface comprising an aperture through which the chisel is ...

Pressure indicator for hydraulic hammer

A pressure indicator for a hydraulic hammer is provided. The pressure indicator includes a sleeve member configured to couple to an opening defined in a wall housing of an accumulator of the hydraulic hammer. The pressure indicator further includes a plunger slidably disposed within the sleeve member and movable between a first position and a second position with respect to the sleeve member. The plunger includes a first end disposed outside the wall housing of the accumulator. The plunger further includes a flange coupled to a second end. The pressure indicator further includes an elastic member inserted over the plunger and disposed between the wall housing of the accumulator and the flange. A position of the first end of the plunger with reference to an outer end of the sleeve member provides a visual indication of the pressure of the gas within the accumulator.

HYDRAULIC HAMMER HAVING VARIABLE STROKE CONTROL

A variable stroke control system for a hydraulic hammer is disclosed. The variable stroke control system may include an inlet groove formed around a piston associated with the hydraulic hammer and configured to receive pressurized fluid, and an outlet groove formed around the piston associated with the hydraulic hammer and configured to discharge the pressurized fluid. The variable stroke control system may further include a valve in fluid communication with the inlet groove and the outlet groove, and configured to selectively adjust a stroke length of the piston based on a change in pressure differential between the inlet groove and the outlet groove. 1. A variable stroke control system for a hydraulic hammer , comprising:an inlet groove formed around a piston associated with the hydraulic hammer and configured to receive pressurized fluid;an outlet groove formed around the piston associated with the hydraulic hammer and configured to discharge the pressurized fluid; anda valve in fluid communication with the inlet groove and the outlet groove, and configured to selectively adjust a stroke length of the piston based on a change in pressure differential between the inlet groove and the outlet groove.2. The variable stroke control system of claim 1 , wherein the pressure differential is indicative of a hardness of a material impacted by a work tool of the hydraulic hammer.3. The variable stroke control system of claim 1 , wherein the valve is configured to cause the stroke length of the piston to be longer when the pressure differential is greater than a threshold amount.4. The variable stroke control system of claim 3 , wherein the valve is configured to cause the stroke length of the piston to be shorter when the pressure differential is less than the threshold amount.5. The variable stroke control system of claim 1 , wherein the valve includes:a valve element configured to move between a flow blocking position and a flow passing position; anda spring configured to ...

Accumulator membrane for a hydraulic hammer

An accumulator membrane is disclosed. The accumulator membrane may include a generally cylindrical tube having a side wall with a first end a second end. A lip may be located at the first end, and may form a pocket with the side wall. An extension may protrude from the second end at an angle generally perpendicular to the lip and co-axial with the generally cylindrical tube.

HYDRAULIC HAMMER HAVING CO-AXIAL ACCUMULATOR AND PISTON

A hydraulic hammer is disclosed having a piston and an accumulator membrane disposed external and co-axial to the piston. Additionally, a sleeve is disposed between the piston and accumulator membrane, wherein the sleeve has a plurality of radial passages formed therein that fluidly connect the accumulator membrane with the piston. 1. A hydraulic hammer assembly , comprising:a piston;an accumulator membrane disposed external and co-axial to the piston; anda sleeve disposed between the piston and the accumulator membrane, the sleeve having a plurality of radial passages formed therein that fluidly connect the accumulator membrane with the piston.2. The hydraulic hammer of claim 1 , further including a sleeve liner disposed radially between the accumulator membrane and the sleeve.3. The hydraulic hammer of claim 2 , further including a plurality of longitudinal recesses formed within the sleeve claim 2 , wherein at least one of the plurality of longitudinal recesses fluidly connects at least one of the plurality of radial passages with the accumulator membrane.4. The hydraulic hammer of claim 3 , further including an annular groove formed at an internal surface of the sleeve claim 3 , wherein the plurality of longitudinal recesses fluidly connect the annular groove with the accumulator membrane via the plurality of radial passages.5. The hydraulic hammer of claim 4 , wherein:the piston includes an impact end; andthe annular groove is disposed between the impact end and the plurality of radial passages.6. The hydraulic hammer of claim 4 , further including a valve located at an axial end of the accumulator membrane claim 4 , wherein the plurality of longitudinal recesses connect the valve to at least one of the plurality of radial passages.7. The hydraulic hammer of claim 6 , further including:a head configured to close off an end of the sleeve; anda fluid chamber formed within the head.8. The hydraulic hammer of claim 7 , wherein the valve is located inward of the ...

HYDRAULIC HAMMER HAVING IMPACT SYSTEM SUBASSEMBLY

An impact system for a hydraulic hammer is disclosed. The impact system may include a piston, a sleeve disposed co-axial with the piston, and an accumulator membrane disposed external to the sleeve. A first seal may be located at an end of the sleeve, and configured to connect the sleeve to the piston. The accumulator membrane may have an extension configured to engage a recess in the sleeve. 1. An impact system for a hydraulic hammer , the impact system comprising:a piston;a sleeve disposed co-axial with the piston;a first seal located at an end of the sleeve and configured to connect the sleeve to the piston; andan accumulator membrane disposed external to the sleeve and having an extension configured to engage a recess in the sleeve.2. The impact system of claim 1 , wherein the first seal is configured to generate a radial force on the sleeve and the piston after assembly that secures the sleeve to the piston.3. The impact system of claim 1 , wherein the extension is co-axial with the piston and oriented inwards towards the piston.4. The impact system of claim 1 , further including:a seal carrier disposed co-axial with the piston; anda second seal configured to connect the seal carrier to the piston.5. The impact system of claim 4 , wherein the second seal is configured to generate a radial force on the seal carrier and the piston after assembly that secures the seal carrier to the piston.6. The impact system of claim 5 , further including a valve trapped within a cavity formed between the seal carrier and the piston.7. The impact system of claim 6 , wherein the valve is disposed external to the accumulator membrane.8. The impact system of claim 6 , wherein the seal carrier and the sleeve overlap each other axially to form the cavity.9. The impact system of claim 8 , wherein:the seal carrier includes a female connector; andthe sleeve includes a male connector received by the female connector.10. The impact system of claim 1 , further including a sleeve liner ...

Two-Piston Hydraulic Striking Device

Provided is a two-piston hydraulic striking device that has stable operatively. This two-piston hydraulic striking device includes two striking mechanisms for striking one transfer member. Each striking mechanism has a pressure receiving area ratio between the front and rear of a piston thereof set in such a way that the two striking mechanisms have the same cycle time. 1. A two-piston hydraulic striking device comprising:a striking mechanism configured to strike one transfer member with two pistons, whereinthe striking mechanism includes a first striking mechanism and a second striking mechanism, and the first striking mechanism and the second striking mechanism are arranged in series in front and rear direction in such a way that striking axes are coaxial with each other and the second striking mechanism is positioned on a side where the one transfer member is located,the first striking mechanism includes: a first cylinder; a first piston configured to be slidably fitted into the first cylinder in such a manner as to be able to advance and retract, the first piston having a first striking portion for striking the one transfer member at a tip portion of the first piston; and a first switching valve configured to switch advancing and retracting movements of the first piston, a second cylinder; a second piston configured to be slidably fitted into the second cylinder in such a manner as to be able to advance and retract, the second piston having a second striking portion for striking the one transfer member at a tip portion of the second piston; and', 'a second switching valve configured to switch advancing and retracting movements of the second piston,, 'the second striking mechanism includesonly either the first striking mechanism or the second striking mechanism includes a valve controller for controlling operation of both the first switching valve and the second switching valve,of the two pistons, at least the second piston is formed into a hollow shape and the ...

Hydraulic Hammering Device

Hammering power of a hydraulic hammering device is improved by shortening a piston stroke, while keeping hammering energy. The device includes a cylinder, a piston slidingly fitted in the cylinder, and a piston front chamber and a piston rear chamber defined between an outer circumferential surface of the piston and an inner circumferential surface of the cylinder and disposed separately from each other at front and rear, respectively, in an axial direction. The device also includes a switching-valve mechanism driving the piston by switching at least one of the piston front or rear chamber into communication with at least one of a high pressure circuit or a low pressure circuit, and an acceleration piston disposed behind the piston and coming in contact with the piston during a retreat stroke of the piston to urge the piston forward in cooperation with braking force by pressurized oil acting on the piston. 1. A hydraulic hammering device comprising:a cylinder;a piston slidingly fitted in the cylinder;a piston front chamber and a piston rear chamber which are defined between an outer circumferential surface of the piston and an inner circumferential surface of the cylinder and disposed separately from each other at front and rear, respectively, in an axial direction of the piston;a switching-valve mechanism driving the piston by switching at least one of the piston front chamber and the piston rear chamber into communication with at least one of a high pressure circuit and a low pressure circuit; andan urging unit, which is disposed behind the piston and comes in contact with the piston during a retreat stroke of the piston, to urge the piston forward in cooperation with braking force by pressurized oil acting on the piston.2. The hydraulic hammering device according to claim 1 , wherein the urging unit comes into contact with the piston at a timing of an action of the braking force on the piston owing to pressurized oil during the retreat stroke of the piston.3. The ...

HYDRAULIC HAMMER

A hydraulic hammer for a machine is provided. The hydraulic hammer includes a housing and a piston disposed within the housing and adapted to reciprocate along a longitudinal axis of the housing. The hydraulic hammer further includes a first chamber and a second chamber defined within the housing. The hydraulic hammer further includes a primary passage extending from an inlet and branching into a first passage and a second passage. The first passage fluidly communicates the primary passage with the first chamber and the second passage fluidly communicates the primary passage with the second chamber. The hydraulic hammer further includes a flow control device coupled to the first passage. The flow control device includes a valve element adapted to move between a first position and a second position based on an input signal indicative of a pressure of charge in the first chamber. 1. A hydraulic hammer of a machine , the hydraulic hammer comprising:a housing;a piston disposed within the housing and adapted to reciprocate along a longitudinal axis of the housing;a first chamber defined within the housing;a second chamber defined within the housing;a primary passage extending from an inlet and branching into a first passage and a second passage, the first passage fluidly communicating the primary passage with the first chamber and the second passage fluidly communicating the primary passage with the second chamber; anda flow control device coupled to the first passage, the flow control device including a valve element adapted to move between a first position and a second position based on an input signal indicative of a pressure of charge in the first chamber, wherein the valve element allows flow of charge from the primary passage to the first chamber in the first position and restricts flow of charge from the primary passage to the first chamber in the second position, allowing the first chamber to be pressurized to a first pressure equal to the input signal and the ...

Hydraulic Striking Device

Provided is a hydraulic striking device in which a reverse operation circuit and a forward operation circuit can switch connection states to a high pressure circuit and a low pressure circuit by means of an operation switching valve. Further, the hydraulic striking device is configured to be selectable between a reverse operation mode or a forward operation mode by operating the operation switching valve. A high/low pressure switching portion is provided with a shortening portion for reducing the time required for high/low pressure switching operation in piston front and rear chambers in association with retraction of a valve to be shorter than the time required for high/low pressure switching operation in the piston front and rear chambers in association with advancement of the valve.

Apparatus for Generating Impulse-Dynamic Process Forces

An apparatus for generating impulse-dynamic process forces includes a pressure chamber, a connecting chamber and a bolt chamber The pressure chamber includes a plunger arranged to be pushed into the pressure chamber for compression of a hydraulic medium 1ocated therein. In the connecting chamber there is displaceably arranged a stepped pistons which has a valve body for closing an orifice connecting the pressure chamber to the connecting chamber. In the bolt chamber there is located a displaceable impact bolt which has a first bolt portion and a second bolt portion The first bolt portion seals an interior space of the bolt chamber that surrounds the second bolt portion. Connected to the bolt chamber there is at least one pressure reservoir containing pressurised pressure medium, which pressure reservoir is in communicating connection via a connection port with the interior space of the bolt chamber. 1. An apparatus for generating impulse-dynamic process forces , comprising:a pressure chamber in which a pressurised hydraulic medium is arranged;means for temporarily increasing the pressure of the hydraulic medium located in the pressure chamber;a connecting chamber arranged downstream of the pressure chamber and connected thereto;a bolt chamber arranged downstream of the connecting chamber and connected thereto;a stepped piston arranged so as to be displaceable in the connecting chamber, which piston has a valve body for closing an orifice connecting the pressure chamber to the connecting chamber, and a piston portion facing the bolt chamber, by means of which piston portion a transmission space of the connecting chamber between the piston portion and the bolt chamber is sealed with respect to the side of the connecting chamber remote from the bolt chamber, the transmission space having a pressurised hydraulic medium arranged therein; andan impact bolt arranged so to be displaceable in the bolt chamber,wherein the impact bolt has a first bolt portion with a larger ...

LEVELING DEVICE ASSEMBLY FOR A HYDRAULIC HAMMER

A leveling device assembly for use with a hydraulic hammer is provided. The leveling device assembly comprises a control unit, a leveling sensor in communication with the control unit, and a laser generator in communication with the control unit. Additionally, the laser generator is configured to produce a first colored light beam and a second colored light beam different from the first colored light beam. The control unit is further configured to cause the laser generator to produce the first colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially vertical position and produce the second colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially non-vertical position. 1. A leveling device assembly for a hydraulic hammer comprising:a control unit;a leveling sensor in communication with the control unit; anda laser generator in communication with the control unit and configured to produce a first colored light beam and a second colored light beam different from the first colored light beam;wherein the control unit is configured to cause the laser generator to produce the first colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially vertical position and produce the second colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially non-vertical position.2. The leveling device assembly of claim 1 , further comprising a shutoff valve operatively in communication with the control unit for operatively being in communication with a hydraulic system of the hydraulic hammer.3. The leveling device assembly of claim 2 , wherein the shutoff valve is configured to move to an open position when the leveling sensor indicates the hydraulic hammer is in a substantially vertical position and move to a closed position when the leveling sensor indicates the hydraulic hammer is in a substantially non-vertical position.4. The ...

HYDRAULIC BREAKER

The present invention relates to a hydraulic breaker comprising: a back head having a gas chamber provided therein; a cylinder disposed at the lower part of the back head, and having a hydraulic passage and a hydraulic space; a front head disposed at the lower part of the cylinder; a chisel provided inside the front head; a piston provided to reciprocate in the cylinder so as to hit the chisel; and a breaker main body having a plurality of penetration bolts integrally connecting the back head, the cylinder, and the front head, wherein the back head of the breaker main body is provided with a control valve for supplying and blocking hydraulic pressure to/from the hydraulic passage and the hydraulic space. 1. A hydraulic breaker comprising a breaker main body comprising:a back head provided with a gas chamber therein;a cylinder positioned below the back head and provided with a hydraulic path and a hydraulic space;a front head positioned below the cylinder;a chisel installed inside the front head;a piston reciprocally movably installed in the cylinder so as to strike the chisel; anda plurality of through bolts connecting the back head to the cylinder to the front head,wherein the back head of the breaker main body is provided with a control valve to supply hydraulic pressure to the hydraulic path and the hydraulic space and block the supply.2. The hydraulic breaker according to claim 1 ,wherein the cylinder is provided, on an outer side thereof, with an accumulator to smooth flow of a fluid through the hydraulic path.3. The hydraulic breaker according to claim 1 , wherein the hydraulic breaker comprises:a bracket surrounding and supporting the breaker main body and installed at an excavator, a lower end portion of the breaker main body inserted into the bracket being fixed to the bracket by a fixing member, and three remaining surfaces except for a front surface of an upper end portion of the breaker main body being supported by the bracket by a fixing pad;a stopper ...

IMPACT TOOL

In an impact tool, a vibration absorbing body is fitted on the outside of an outer periphery of an operating body, and the vibration absorbing body is interposed between the operating body and the cover body. The vibration absorbing body includes a tubular main body, and ring bodies attached to be fitted into recessed grooves formed on an inner peripheral surface and an outer peripheral surface of the tubular main body along the circumferential direction and elastically deformed to expand or contract the outside diameter. The ring bodies are maintained in a state where the ring bodies are elastically contracted in a freely expanding or contracting manner. 1. An impact tool comprising a cover body and a distal end work tool extending forward from said cover body for performing a task by abutment of said distal end work tool against a workpiece while a gas is introduced into the inside of said cover body , whereinsaid cover body includes: an inner space portion formed along a longitudinal direction; and a cylindrical operating body moving in the longitudinal direction or rotating about an axis along the longitudinal direction is mounted in said inner space portion,when a gas is introduced to a rear side of said operating body, a hammer provided in said operating body reciprocates to impact repeatedly the distal end work tool, thereby transmitting an impact force to the workpiece,a vibration absorbing body is provided so as to be fitted to the outside of said operating body and interposed between an outer peripheral surface of said operating body and an inner peripheral surface of said cover body,said vibration absorbing body includes: a tubular main body; and an elastically deformable ring body mounted onto each of an inner peripheral surface and an outer peripheral surface of said tubular main body along a circumferential direction,in a state where said vibration absorbing body is interposed between the outer peripheral surface of said operating body and the inner ...

PERCUSSION APPARATUS

This percussion apparatus includes a striking piston, a control distributor arranged to control a reciprocating movement of the striking piston, and a control device arranged to vary the striking stroke of the striking piston. The control device comprises a plurality of control channels, a control channel connected to the control distributor, a control slide movably mounted between a plurality of control positions, and an adjusting slide mounted in a receiving housing delimited by the control slide, the control slide and the adjusting slide delimiting a first adjusting chamber connected to the control channel and a second adjusting chamber connected to a the high-pressure fluid supply circuit. The control slide is movably mounted between a first position in which the first control chamber and the second adjusting chamber are connected and a second position in which the first control chamber and the second adjusting chamber are isolated. 1. A percussion apparatus , including:a body delimiting a piston cylinder,a striking piston alternately movable inside the piston cylinder, and arranged to strike a tool during each operating cycle of the percussion apparatus,a control distributor arranged to control a reciprocating movement of the striking piston inside the piston cylinder reciprocally along a striking stroke and a return stroke, a control cylinder,', 'a plurality of control channels each opening into the control cylinder, each control channel also opening into the piston cylinder and being adapted to be put in communication with a high-pressure fluid supply circuit during at least one part of the reciprocating movement of the striking piston,', 'a control channel connected to the control distributor and opening into the control cylinder,', 'a control slide movably mounted in the control cylinder between a plurality of control positions in each of which the control slide is configured to fluidly connect the control channel with at least one of the control channels ...

PERCUSSION APPARATUS PROVIDED WITH A GUIDE BEARING EQUIPPED WITH A CENTERING DEVICE

This percussion apparatus includes a striking piston mounted so as to be displaced inside a piston cylinder and arranged to strike a tool; and a guide bearing comprising a guide surface configured to guide the striking piston during the displacements of the striking piston in the piston cylinder. The guide bearing includes a centering device configured to center the striking piston in the piston cylinder, the centering device comprising centering chambers formed in the guide surface and distributed around the striking piston, each centering chamber being fluidly connected to a high pressure fluid supply circuit; and at least one discharge groove formed in the guide surface of the guide bearing and located proximate to at least one of the centering chambers, the at least one discharge groove being fluidly connected to a low pressure circuit. 2. The percussion apparatus according to claim 1 , wherein the centering chambers are evenly distributed around the striking piston.3. The percussion apparatus according to claim 1 , wherein the centering chambers are aligned on a same circumference of the guide surface.4. The percussion apparatus according to claim 1 , wherein the centering device is configured to supply each centering chamber with a substantially constant supply flow rate.5. The percussion apparatus according to claim 1 , wherein the centering device includes a plurality of connection channels each provided with a flow rate control member claim 1 , each connection channel fluidly connecting the high pressure fluid supply circuit to a respective centering chamber.6. The percussion apparatus according to claim 5 , wherein each flow rate control member is a calibrated orifice.7. The percussion apparatus according to claim 1 , wherein the centering device includes a plurality of discharge channel claim 1 , each discharge channel fluidly connecting the low pressure circuit to a respective discharge groove.8. The percussion apparatus according to claim 1 , which ...

VIBRATION ISOLATOR FOR A PNEUMATIC POLE OR BACKFILL TAMPER

A percussion action pneumatic tool for compacting backfill areas including a vibration isolator and a percussion mechanism. The vibration isolator includes an inner shaft and an outer sleeve attached to a pair of springs. The springs dampen vibration or feedback transferred from the percussion mechanism to the outer sleeve and felt by the operator. The percussion mechanism includes a pair of elbows and an air conduit which allows the airflow to move through a second flow path into a second air space when the valve assembly directs the airflow through the second flow path. 1. A vibration isolator apparatus for use with a percussion mechanism comprising:an inner shaft including an upper end and a lower end;an outer sleeve including an upper end and a lower end, the outer sleeve slidably received around the inner shaft;a first spring including a first end and a second end;a second spring including a first end and a second end;wherein the first spring is connected to the upper end of the outer sleeve and the second spring is connected to the lower end of the outer sleeve;wherein when the lower end of the inner shaft is connected to the percussion mechanism, and the first spring and the second spring limit the vibration transferred to the outer sleeve from the percussion mechanism.2. The isolator apparatus of claim 1 , wherein the first spring and the second spring are slidably received around the inner shaft.3. The isolator apparatus of claim 1 , further comprising:an upper cap connected to the upper end of the inner shaft and the first end of the first spring; anda lower cap connected to the lower end of the inner shaft and the second end of the second spring.4. The vibration isolator apparatus of further comprising an air hose connected to the upper cap.5. The vibration isolator apparatus of claim 1 , further comprising:an upper bushing connected to the upper end of the outer sleeve and the second end of the first spring; anda lower bushing connected to the lower end ...

DEVICE FOR PRESSURE MONITORING

A device for monitoring pressure within a gas space, which is filled with gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism having a housing in which a piston is mounted, together with a display element which extends through the face surface of the housing, so as to be slidingly movable counter to the force of a spring, wherein the piston divides the housing into a pressure chamber and a spring chamber. The spring acts on a spring chamber-side working surface of the piston, and the pressure accumulator is at least indirectly operatively connected to the pressure chamber-side working surface of the piston, such that, in the event of a critical pressure within the pressure accumulator being undershot, the piston and the display element are displaced to such an extent that the display element protrudes out of the housing. 1. A device for monitoring a pressure within a gas space , which is filled with a gas , preferably nitrogen , and/or is prestressed , of a pressure accumulator of a hydraulically driven percussive mechanism , the device comprising:a housing in which a piston is mounted, together with a display element which extends through a face surface of the housing, so as to be slidingly movable counter to a force of a spring, wherein the piston divides the housing into a pressure chamber and a spring chamber, the spring acting on a spring chamber-side working surface, which is averted from the display element, of the piston, and the pressure accumulator is at least indirectly operatively connected to the pressure chamber-side working surface, facing toward the display element, of the piston, such that, in an event of a critical pressure within the pressure accumulator being undershot, the piston and the display element are displaced to such an extent that the display element protrudes out of the housing.2. A device according to claim 1 , wherein the display element has at least one marking ...

PRESSURE MONITORING DEVICE

A device for monitoring the pressure within a gas space, which is filled with a gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism, in particular of a demolition hammer or of a drilling hammer, having a housing in which a piston is mounted, together with an indicator element which extends through the face surface of the housing, in slidingly movable fashion. The piston divides the housing into two chambers, and a first, pressure accumulator-side chamber and a pressure accumulator-side working surface, which is averted from the indicator element, of the piston are operatively connected at least indirectly to the gas space of the pressure accumulator. A second, hydraulics-side chamber and a hydraulics-side working surface, facing toward the indicator element, of the piston are connected to the hydraulic system of the percussive mechanism. 1. A device for monitoring a pressure within a gas space , which is filled with a gas , preferably nitrogen , and/or is prestressed , of a pressure accumulator of a hydraulically driven percussive mechanism , having a housing in which a piston is mounted , together with an indicator element which extends through a face surface of the housing , in slidingly movable fashion , wherein the piston divides the housing into two chambers , and a first , pressure accumulator-side chamber and a pressure accumulator-side working surface , which is averted from the indicator element , of the piston are operatively connected at least indirectly to the gas space of the pressure accumulator , the device comprising:a second, hydraulics-side chamber and a hydraulics-side working surface, facing toward the indicator element, of the piston connected to a hydraulic system of the percussive mechanism such that the indicator element, by way of a position of the indicator element, signals an undershooting of a critical pressure within the pressure accumulator if an exertion of pressure ...

METHOD FOR SETTING THE STRIKING STROKE OF A STRIKING PISTON OF A PERCUSSION APPARATUS, AND A PERCUSSION APPARATUS FOR IMPLEMENTING SAID METHOD

The percussion apparatus includes a striking piston and a piloting device configured to make a striking stroke of the striking piston vary, the piloting device comprising a piloting cylinder, a piloting slide mounted movable in translation within the piloting cylinder according to a direction of displacement and mounted movable in rotation within the piloting cylinder, and a main piloting chamber delimited by the piloting slide and the piloting cylinder. The percussion apparatus further includes a setting device configured to set a range of variation of the striking stroke of the striking piston, the setting device including a setting member configured to set the angular position of the piloting slide in the piloting cylinder, and at least one fluidic communication passage formed on the piloting slide and configured to hydraulically limit the translational displacement stroke of the piloting slide according to the direction of displacement according to the angular position occupied by the piloting slide. 1. A setting method for setting a striking stroke of a striking piston of a percussion apparatus , the setting method comprising the following steps:providing a percussion apparatus comprising a striking piston displaceable in a reciprocating manner inside a body of the percussion apparatus and configured to hit a tool at each operating cycle of the percussion apparatus, and a piloting device configured to make the striking stroke of the striking piston vary automatically according to the hardness of the ground encountered by the tool, the piloting device comprising a piloting cylinder, a piloting slide mounted movable in translation within the piloting cylinder according to a direction of displacement and configured to occupy a plurality of piloting positions shifted from one another according to the direction of displacement, and a main piloting chamber delimited by the piloting slide and the piloting cylinder,setting a range of variation of the striking stroke of ...

Slagverktyg.

Hammer device

Hammer device comprising a machine housing (1) with a hammer piston (2) movable to-and-fro. The movement to-and-fro of the hammer piston is controlled by a valve body (6) movable to-and-fro in the machine housing. In order to speed up the turning of the hammer piston at its rear end position the machine housing is provided with a room (10) which by the hammer piston is separated from connection with the valve body (6) at the same time as the rear end surface (5) is supplied with pressure fluid via a connection (11) opened by the hammer piston to the pressure source (8) when the hammer piston approaches its rear end position.

Pneumatic hammer

FIELD: construction equipment.SUBSTANCE: invention can be used as a pneumatic hammer for destruction of stone quarry gangways, frozen soil, concrete foundations, road pavements and similar materials and structures. Pneumatic hammer comprises an air-hammer mechanism of throttle valve type. Proposed tool comprises working tool with shank end, cylindrical case, barrel with air feed channel, annular flange with central bore and intake throttle channel, end prechamber, formed between the shell and the annular flange, a hammer in the housing with a through axial hole and a bypass channel on the side surface and dividing the housing cavity into the working and idle chambers, installed in central hole of annular flange rod-tube, passed through central hole in sleeve and fixed relative to it, radial outlet channel in rod-tube with its continuation in form of axial longitudinal channel with outlet into atmosphere. Rod-tube on the side of the end prechamber is equipped with a radial throttling channel of air inlet with its continuation in the form of a longitudinal channel with output to the idle stroke chamber.EFFECT: invention allows increasing kinetic energy of single impact and reducing specific air flow rate.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 728 064 C2 (51) МПК E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21C 37/24 (2020.02); B25D 9/14 (2020.02); B25D 9/26 (2020.02) (21)(22) Заявка: 2017117364, 18.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 28.07.2020 (43) Дата публикации заявки: 19.11.2018 Бюл. № 32 (45) Опубликовано: 28.07.2020 Бюл. № 22 2 7 2 8 0 6 4 R U (54) Пневматический молот (57) Реферат: Изобретение относится к строительной технике и может быть использовано в качестве пневматического молота для разрушения каменных карьерных негабаритов, мерзлого грунта, бетонных фундаментов, дорожных покрытий и тому подобных материалов и ...

液压式冲击装置

本发明提供一种提升冲击效率且低成本的液压式冲击装置。活塞(200)在其大径部具有阀切换槽(205)，缸体(100)在与阀切换槽(205)相对应的位置具有3个控制口(112、113、114)，切换阀机构(210)具有始终对阀(300)朝向一个方向施力的阀施力部件和在供给压力油时克服阀施力部件的作用力而使阀(300)向相反方向移动的阀控制部件。阀控制口(114)以能够向阀控制部件供给压力油的方式与该阀控制部件连通，并且与活塞前室(110)、后室(111)相互隔绝，活塞后退控制口(113)和活塞前进控制口(112)通过与阀切换槽(205)的前后移动相应地只有任一个口与阀控制口(114)连通。

空圧式衝撃工具等の緩衝装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Пневматический молот

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 117 364 A (51) МПК E21C 37/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017117364, 18.05.2017 Приоритет(ы): (22) Дата подачи заявки: 18.05.2017 (43) Дата публикации заявки: 19.11.2018 Бюл. № Адрес для переписки: 630008, г. Новосибирск, ул. Ленинградская, 113, НГАСУ (Сибстрин), отдел ПЛР R U (57) Формула изобретения Пневматический молот, включающий пневмоударный механизм дроссельноклапанного типа, содержащий рабочий инструмент с хвостовиком, цилиндрический корпус, стакан с каналом подвода воздуха из сети, закрепленный разъемно относительно цилиндрического корпуса, кольцевой фланец с центральным отверстием и дроссельными каналами впуска, торцевую предкамеру, образованную между стаканом и кольцевым фланцем, размещенный в цилиндрическом корпусе ударник со сквозным осевым отверстием и перепускным глухим каналом на боковой поверхности и разделяющий полость цилиндрического корпуса на камеры рабочего и холостого хода, установленную в центральном отверстии кольцевого фланца стержень-трубку, пропущенную через центральное отверстие в стакане и закрепленную относительно его, выточку в камере холостого хода, взаимодействующую с перепускным каналом в виде канала-лыски, либо канала-паза на боковой поверхности ударника, радиальный канал выпуска в стержне-трубке с его продолжением в виде продольного канала с выходом в атмосферу и открываемый торцом ударника со стороны хвостовика рабочего инструмента, дополнительную кольцевую предкамеру, образованную между стаканом и цилиндрическим корпусом, каналом перепуска в боковой стенке кольцевого фланца, постоянно сообщающим торцевую предкамеру с дополнительной кольцевой предкамерой, кольцевую камеру и кольцевую аккумуляционную камеру в виде кольцевых выточек, разделенных кольцевым буртиком, сквозные перепускные каналы в стенках выточек, постоянно сообщающие кольцевую камеру торможения и кольцевую аккумуляционную камеру с ...

Hydraulic rock breaker

FIELD: process engineering. SUBSTANCE: invention relates to percussion tools, namely, hydraulic rock breakers. Proposed device comprises one-piece case with piston and piston rod, moving hammer, working tool and pressure conversion piston. Gas chamber is arranged between case, pressure conversion piston and hammer. Pressure conversion cylinder and compensation chamber are arranged between pressure conversion piston and piston rod. Connection channel is made between gas and compensation chambers. EFFECT: decreased weight and sizes, smaller recoil pulses. 6 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 449 882 (13) C2 (51) МПК B25D 9/04 (2006.01) B25D 9/20 (2006.01) B25D 9/26 (2006.01) E21C 37/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010103146/02, 08.07.2008 (24) Дата начала отсчета срока действия патента: 08.07.2008 (73) Патентообладатель(и): КОНЕК с.р.о. (SK) R U Приоритет(ы): (30) Конвенционный приоритет: 09.07.2007 SK PP 93-2007 (72) Автор(ы): КОНЕЧНИК Штефан (SK) (43) Дата публикации заявки: 20.08.2011 Бюл. № 23 2 4 4 9 8 8 2 (45) Опубликовано: 10.05.2012 Бюл. № 13 (56) Список документов, цитированных в отчете о поиске: US 5113950 A, 19.05.1992. SU 859622 A1, 30.08.1981. SU 845796 A3, 07.07.1981. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.02.2010 2 4 4 9 8 8 2 R U (87) Публикация заявки РСТ: WO 2009/008844 (15.01.2009) C 2 C 2 (86) Заявка PCT: SK 2008/000008 (08.07.2008) Адрес для переписки: 400096, г.Волгоград, а/я 4, пат.пов. Б.И.Машкину (54) ГИДРАВЛИЧЕСКИЙ ОТБОЙНЫЙ МОЛОТОК (57) Реферат: Изобретение относится к ударным устройствам, а именно к гидравлическим отбойным молоткам. Отбойный молоток содержит монолитный корпус с поршневым штоком и поршнем, подвижным ударником, рабочим инструментом и поршнем преобразователя давления. Между корпусом, поршнем преобразователя давления и ударником образована газовая камера. Между поршневым штоком и поршнем преобразователя ...

Adjustable compression-vacuum shock machine of double action

FIELD: construction. SUBSTANCE: machine comprises a housing and a striker arranged therein, forming the upper chamber and the lower chamber, a vacuum compressor located at the upper part of the housing, connected to the upper chamber and comprising at least one pair of centrifugal compression-vacuum mechanisms mounted oppositely to each other with suction openings connected to the disc and having a common channel through an opening in this disc, which forms chambers above and below the disc in the upper housing part. The chamber above the disc is connected to the atmosphere, and cuts off said upper chamber and the chamber under the disc from the atmosphere. Said centrifugal compression-vacuum mechanisms are electrically connected to a three-position switch electrically connected to the current source, a receiver connected to the upper chamber, a magnetic lock for the striker, installed in the upper chamber, and a working tool. The lower chamber is connected to the atmosphere. The receiver is located in the housing between the upper chamber and the vacuum compressor and is connected to the upper chamber through the openings of the centering disk separating the receiver from the upper chamber, and to the vacuum compressor - through the openings in the mounting disc separating the vacuum compressor from the receiver. The magnetic lock for the striker is connected to a regulator located in the receiver and made with the possibility to change its length. EFFECT: ensuring the possibility to expand the energy of impacts and the frequency, to avoid pressure losses during the flow-over from the receiver to the upper chamber, to reduce the machine dimensions by width, and to work in hard-to-reach places. 3 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 931 C1 (51) МПК E21B 1/38 (2006.01) E02D 7/02 (2006.01) E21C 37/22 (2006.01) B25D 9/04 (2006.01) B25D 9/06 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ...

Double action vacuum impact machine

FIELD: mining. SUBSTANCE: invention relates to mining - percussion machines, used for breaking monoliths, for destroying outdated foundations during the reconstruction of buildings and driving piles, as well as in seismic exploration as a source of excitation of seismic waves at shallow depths. The machine contains a body and a striker placed in it, forming the lower and upper chambers, a vacuum compressor connected to the upper chamber, a working tool, while the lower chamber is connected to the atmosphere, a gravitational switch and an inertial-friction valve located in the upper part of the body and containing spring loaded spool with friction sleeve-seat. The spool is connected to the switching element of the inertial-friction valve connected to the gravitational switch, installed with the possibility of periodic interaction with the striker through the said element, which is made in the form of a rod. The gravity switch is installed in its upper part with the ability to move along it. The upper chamber is equipped with a recuperator of the striker backstroke energy installed on the switching element of the inertial-friction valve. EFFECT: invention provides recuperation of the energy of the striker backstroke, reduction of weight and overall parameters, expansion of the field of application. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 762 655 C1 (51) МПК E21C 37/22 (2006.01) E02D 7/02 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21C 37/22 (2021.08); E02D 7/00 (2021.08); B25D 9/14 (2021.08) (21)(22) Заявка: 2021114675, 25.05.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.12.2021 Приоритет(ы): (22) Дата подачи заявки: 25.05.2021 (45) Опубликовано: 21.12.2021 Бюл. № 36 2 7 6 2 6 5 5 R U (54) Вакуумная ударная машина двойного действия (57) Реферат: Изобретение относится к горному делу – к машинам ударного действия, применяется при отбойке ...

冲击锤

本发明冲击锤涉及石化设备领域，具体涉及冲击锤，包括气缸外缸和活塞杆，所述气缸外缸的一端连接有气缸端盖，另一端连接有一密封头，所述密封头中心处设置有一通孔，所述活塞杆一端滑动设置在气缸外缸内且连接有一活塞，另一端穿过密封头上的通孔伸出气缸外缸，所述活塞与气缸外缸气密连接，所述活塞杆为中空活塞杆；本发明结构简单，使用方便，利用从第一气孔进入的高压气体推动活塞向冲击头运动，直至冲击头与工件相抵，高压气体通过通气孔进入压力气腔内，实现储气加载，随着不断有高压气体进入，芯锤最终朝向冲击头高速运动，并将冲击力通过冲击头传递给工件。

충격 장치

충격 장치(2)는, 타격 피스톤(5), 타격 피스톤(5)의 왕복 운동을 제어하는 제어 분배기(11), 및 타격 피스톤(5)의 타격 행정을 변화시키는 제어 장치(15)를 포함한다. 이 제어 장치(15)는, 복수의 제 1 제어 채널(18a, 18b, 18c), 제어 분배기(11)에 연결되는 제 2 제어 채널(19), 복수의 제어 위치 사이에서 움직일 수 있게 장착되는 제어 슬라이드(16), 및 이 제어 슬라이드에 의해 형성된 수용 하우징 안에 장착되는 조절 슬라이드(34)를 포함하고, 제어 슬라이드(16)와 조절 슬라이드(34)는, 제 2 제어 채널(19)에 연결되어 있는 제 1 조절 챔버(36), 및 고압 유체 공급 회로(12)에 연결되어 있는 제 2 조절 챔버(37)를 형성한다. 제어 슬라이드(34)는, 제 1 조절 챔버(36)와 제 2 조절 챔버(37)가 서로 연결되는 제 1 위치와, 제 1 조절 챔버(36)와 제 2 조절 챔버(37)가 서로 격리되는 제 2 위치 사이에서 움직일 수 있게 장착된다.

Деструктивный гидромолот

1. Деструктивный гидромолот, имеющий монолитный несущий цилиндрический корпус, содержащий цилиндрические поршневой шток, подвижный ударник и рабочий инструмент, приводимые в действие впуском и выпуском напорной рабочей жидкостью, отличающийся тем, что в части несущего корпуса (1) находится неподвижно расположенный поршневой шток (2) с поршнем (21), на который установлено подвижное клапанное кольцо - клапанная кольцевая втулка (23), укороченный и в осевом направлении жесткий ударник (3), введенный во втулку (24) ударника, поршень (25) мультипликатора, причем в другой части несущего корпуса находятся рабочий инструмент (4), свободно выставленный во втулку (27) инструмента, защищенную с внешней стороны посредством уплотнительной крышки (29), при этом таким размещением между несущим корпусом, поршнем мультипликатора и ударником образована газовая камера (45), между поршневым штоком и поршнем мультипликатора образован цилиндр (43) мультипликатора и компенсационная камера (44), а между газовой камерой и компенсационной камерой образован соединяющий канал (26). ! 2. Деструктивный гидромолот по п.1, отличающийся тем, что цилиндрический корпус ударника имеет выполненное по оси внутреннее заглубление диаметром, соответствующим диаметру поршневого штока, при этом выставленный в заглублении поршневой шток образует замкнутую полость, разделенную поршнем на первую камеру (41) и вторую камеру (42), причем поршневой шток в полости первой камеры имеет на поверхности сплошной участок ограниченной длины с уменьшенным диаметром, на котором выставленная клапанная кольцевая втулка, имеющая протяженность большую, чем участок длины поршневого што РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 103 146 (13) A (51) МПК B25D 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010103146/02, 08.07.2008 (71) Заявитель(и): КОНЕК с.р.о. (SK) Приоритет(ы): (30) Конвенционный приоритет: 09.07.2007 SK PP 93-2007 (72) ...

Hydraulic impact arrangement

A hydraulic percussion apparatus comprising a body, a cylinder in the body and a percussion piston reciprocating in the cylinder. A distributing valve moves in a valve housing. A valve for starting and stopping the percussion apparatus is provided. A hydraulic pump and hydraulic channels form a percussion circuit with a gas/liquid pressure accumulator. A distributing valve circuit and a free circulation circuit are provided for the pump which are parallelly coupled with the percussion circuit, which circuits are connected to the pump and to the start-and-stop valve which has positions for controlling pressure in the circuits. The start-and-stop valve has a middle position during which pressure in the percussion circuit rises up to a predetermined value while the distributing valve circuit remains closed independent of the pressure in the percussion circuit.

Hydraulic percussion machine

Изобретение относитс  к горной промышленности , а именно к устройствам ударного действи  дл  разрушени  горных пород. Цель изобретени  - повышение срока службы устройства за счет исключени  кавитации рабочей жидкости. Гидравлическое устройство ударного действи  содержит корпус 1, в полости которого расположен с возможностью осевого перемещени  и взаимодействи  с инструментом 2 боек (Б) 4, имеющий бурт (БУ) 3. Корпус 1 и Б 4 образуют верхнюю 5, среднюю 6 и ; i нижнюю (НК) 7 камеры. Камера 5 заполнена газом. Камера 6 св зана со сливной магистралью 11, Через золотник 10 НК 7 попеременно св зана со сливной 11 и напорной 12 магистрал ми, 8.полости корпуса 1 коакси- ально Б 4 со стороны НК 7 с возможностью осевого перемещени  установлен полый поршень (П) 17. Устройство имеет несколько вариантов выполнени . Установлен П 17 может быть под БУ 3, на БУ 3. Выполнен П 17 может быть с ограничительным по ском, При выполнении БУ 3 с первой ступенью П 17 выполнен с диаметром внутренней поверхности , ответным диаметру этой ступени , выполненной длиной,по величине не меньшей длины П 17 до ограничительного по ска. Шток Б 4 может быть выполнен с проточкой, ширина которой по величине больше ширины ограничительного по ска П 17. При выполнении БУ 3 со второй ступенью П 17 выполн етс  с ответной этой ступени расточкой. При отскоке Б 4 после удара по инструменту 2 И. 17 продолжает движение вниз и преп тствует возникновению кавитации в НК 7. Затем поддействием давлени  масла П 17 поднимаетс  до контакта с Б 4. 5 з.п. ф-лы, 14 ил. tf.tf В &amp;amp; fsl х|

Method of generating loading impulse in instrument using impact device activated by pressure fluid, and pressure device

FIELD: physics; mechanics. SUBSTANCE: present invention pertains to generating a loading impulse in an instrument using an impact device activated by a pressure fluid, particularly boring machines or perforators. According to the invention the instrument is brought into contact with material, subjected to impact action, for processing the material. The pressure fluid is put into the impact device and released from it to activate the impact device. The impact device comprises a frame, to which in the longitudinal direction the instrument is fixed. During impact the instrument is brought into contact with the material, subjected to the impact action, and the apparatus for letting the pressure fluid into the impact device and releasing the pressure fluid from it, so as to activate the impact device. The impact device comprises a working chamber and an apparatus for transmitting the pressure fluid in form of pressure impulses into the working chamber, located between the frame of the impact device and the instrument. The pressure fluid is transmitted in form of pressure impulses into the working chamber such that, pressure of the fluid creates a force between the frame of the impact device and the instrument. That force presses the instrument to the processed material such that, under the effect of that force in the instrument, in its longitudinal direction, a loading impulse is generated, and the loading impulse propagates in the instrument to the processed material. Generation of the loading impulse practically stops at exactly that moment, when the force stops acting on the instrument. EFFECT: reduced adverse effects of dynamic forces, arising from the operation of the impact device. 35 cl, 6 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 341 635 (13) C2 (51) ÌÏÊ E21B 1/28 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2006103359/03, 06.07.2004 (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà ...

Pneumatic drop hammer

FIELD: mining pneumatic hammer drill. SUBSTANCE: casing provided with covers accommodates a hollow piston with a double-ended rod. The piston forms piston with a double-ended rod. The piston forms forward and back stroke chambers in the casing. Control valve forms in the casing control spaces that periodically communicate with compressed-air source or exhaust port. Floating pistons are installed in casing bores on the side of each cover with formation of buffer chambers with the latters. The covers have radial grooves communicating at the end of the stroke with annular recesses made on the rods. The groove for communication of the control chambers with the compressed-air source in made as an axial passage in one of the rods and radial passage in the piston. EFFECT: improved design. 3 dwg ЭУ9ЗСЗУтОСсС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ “” 2043 546 ' 13) Сл Е 15 В 15/14 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5001433/29, 13.09.1991 (30) Приоритет: 15.09.1990 СМ 90220630.3 (46) Дата публикации: 10.09.1995 (56) Ссылки: Заявка Франции М 2552172, кл. Е 15В 15/22, 1985. (71) Заявитель: Чи-Гуо Данг[СМ] (72) Изобретатель: Чи-Гуо Дан[СМ] (73) Патентообладатель: Чи-Гуо Дан[[СМ] (54) ПНЕВМАТИЧЕСКОЕ КОПРОВОЕ УСТРОЙСТВО (57) Реферат: Использование: В рудничном пневматическом бурильном — устройстве. Сущность изобретения: в корпусе с крышками размещен полый поршень с двусторонним штоком. Поршень образует в корпусе камеры прямого и обратного хода. Распределительный золотник образует в корпусе полости управления, периодически сообщаемые с источником сжатого воздуха или ВЫХЛОПОМ. Плавающие поршни установлены в расточках корпуса со стороны каждой крышки с образованием с последними буферных камер. Крышки выполнены с радиальными каналами, сообщенными в конце хода с кольцевыми проточками, выполненными на штоках. Канал для сообщения камер управления с источником сжатого воздуха выполнен в виде осевого канала в одном ...

Piercing apparatus

A piercing apparatus compact in size having a decreased number of hoses is suited for use as an iron runner port-opening machine for a blast furnace or the like furnace in an iron mill. The piercing apparatus executes the piercing by moving back and forth, by using a feed unit, a drifter equipped with a forward-blowing unit, a reverse-blowing unit and a rotary unit, and wherein cylinders containing a cylindrical blowing piston are provided in front of, and at the back of, a drifter body maintaining a distance relative to each other; a shank rod having, formed as a unitary structure, a blowing portion of a large diameter with blowing surfaces formed on the front and rear portions thereof and rod-like small-diameter portions protruding forward and backward beyond the blowing portion, is provided along the axial direction of the drifter body in a manner that the blowing portion is positioned between the front cylinder and rear cylinder and that the small-diameter portions on both sides are fitted to the cylindrical blowing pistons of the respective sides; and valves are provided in the outer peripheral portions of the front and rear cylinders to supply hydraulic pressure into the cylinders.

Compact pneumatic auto body hammer with fine control of impact force

用于敲击并且打平金属板的手持气动冲击工具，包括小型化的单稳态、往复冲击机构，其具有用于控制敲击力的空气压力调节器以及用于施加修复凹陷或褶皱的车身所必须的力的可互换工具头。

Percussion device and rock drilling machine including such a percussion device

一种冲击装置，其在机壳(7)内具有可移动冲击活塞(2)，所述活塞(2)的运动可通过移动的阀体(5)控制，所述阀体(5)根据指示冲击活塞的轴向位置的信号被设置成将一室交替地连接到压力源和低压上，活塞(2)上的驱动面位于所述室中，因此，用于传送所述信号的控制通道机构(10、12；10′、12′)具有打开机构，所述打开机构通向用于容纳活塞(2)的气缸空间，以与活塞上的控制边缘(11、13)相配合，设置调整机构，使调整所述信号被传送的活塞的轴向位置成为可能。调整机构包括至少一个可轴向移动的控制机构(9、9′、9″)，所述控制机构(9、9′、9″)接触活塞，并包括具有打开机构的控制通道机构的一部分(10、12；10′、12′)，本发明还涉及一种凿岩机和方法。

Control Device of Piston Stroke of hydraulic Breaker

본 고안은 피타격물 파쇄작업시 타격수 및 타격력을 변화시켜 피타격물의 종류에 따라 유압 브레이커의 파쇄작업효율을 향상시킬 수 있도록 피스톤의 행정거리를 조절하는 유압 브레이커의 피스톤 행정거리조절장치에 관한 것으로서, 밸브 전환실이 실린더 하실과 연통되었을 때 밸브 스풀이 상승되고, 실린더 하실과 실린더 저압실 사이에 구비된 제1 실린더 전환실과 제2 실린더 전환실을 연통 또는 단속하는 유압 브레이커의 피스톤 행정거리조절장치에 있어서, 상기 제2 실린더 전환실과 상기 제1 실린더 전환실을 선택적으로 연통시키는 회전밸브(10)와; 상기 회전밸브(10)의 상측에서 결합되어 상기 회전밸브와 함께 회전되는 회전체(20)와; 상기 회전밸브(10)와 상기 회전체(20) 사이에 개재되어 상기 회전체(20)를 탄성 지지하는 스프링(40)과; 상기 회전밸브(10) 및 상기 회전체(20)의 상부가 결합되고 상기 회전체(20)의 회전을 차단하는 커버(30);를 포함하는 것을 특징으로 한다. 따라서, 유압 브레이커를 이용한 파쇄작업시 작업자의 의도와 무관하게 임의적으로 피스톤의 행정거리가 변화되어 발생할 수 있는 작업효율의 저하를 방지할 수 있다. The present invention relates to a piston stroke distance adjusting device of a hydraulic breaker that adjusts the stroke stroke of the piston to change the number of blows and the blow force during the crushing object to improve the crushing efficiency of the hydraulic breaker according to the type of the strike object. In the piston stroke distance adjusting device of a hydraulic breaker, the valve spool is raised when the valve switching chamber communicates with the cylinder chamber, and communicates or intercepts the first cylinder switching chamber and the second cylinder switching chamber provided between the cylinder chamber and the cylinder low pressure chamber. A rotary valve (10) for selectively communicating with the second cylinder switching chamber and the first cylinder switching chamber; A rotating body 20 coupled to the upper side of the rotary valve 10 to rotate together with the rotary valve; A spring 40 interposed between the rotary valve 10 and the rotary body 20 to elastically support the rotary body 20; And a cover 30 coupled to the rotary valve 10 and the upper part of the rotating body 20 to block rotation of the rotating body 20. Therefore, it is possible to prevent a decrease in work efficiency that may occur due to a change in the stroke length of the piston arbitrarily regardless of the intention of the operator during the crushing operation using the hydraulic ...

Compression-vacuum impact machine (versions)

FIELD: machine building. SUBSTANCE: invention relates to compression-vacuum impact machine. Impact machine contains housing, striker, together with housing forming forward and reverse stroke chambers, and source of working medium, electrically connected to control unit first input. Electrically driven valve is connected with reverse stroke chamber, made with possibility to supply, termination of working medium supply into reverse stroke chamber from working medium source and used working medium discharge and electrically connected to control unit second input. Forward stroke chamber is equipped with electric valve, made with possibility of supply, termination of working medium supply into forward stroke chamber from working medium source and used working medium discharge and electrically connected to control unit third input. EFFECT: result is increased frequency and energy of impacts, simplified design. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 609 765 C1 (51) МПК B25D 9/14 (2006.01) B25D 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015145912, 26.10.2015 (24) Дата начала отсчета срока действия патента: 26.10.2015 Дата регистрации: (72) Автор(ы): Белобородов Василий Николаевич (RU), Ткачук Андрей Константинович (RU), Заболоцкая Надежда Назимовна (RU) Приоритет(ы): (22) Дата подачи заявки: 26.10.2015 (45) Опубликовано: 02.02.2017 Бюл. № 4 (56) Список документов, цитированных в отчете о поиске: RU 2508979 C2, 10.03.2014. RU 2390404 C2, 27.05.2010. US 4495791 A1, 29.01.1985. 2 6 0 9 7 6 5 R U (57) Формула изобретения 1. Компрессионно-вакуумная ударная машина, содержащая корпус, ударник, образующий с корпусом камеры прямого и обратного хода, блок управления, источник рабочей среды, электрически соединенный с первым входом блока управления, электроклапан, связанный с камерой обратного хода и выполненный с возможностью подачи, прекращения подачи рабочей среды в ...

Impact device and method for generating stress pulse therein

본 발명은 유압 작동식 충격 장치에서 응력 펄스를 발생시키기 위한 방법과 함께 공구 (3) 가 길이 방향으로 운동가능하도록 장착되는 프레임 (2) 및 충격 장치 (1) 에 대한 압력 유체 공급을 제어하기 위한 제어 수단 (7) 을 포함하는 유압 작동식 충격 장치에 관한 것이다. 상기 충격 장치 (1) 는 작동실 (8) 과 이 작동실 내에서 운동하는 전달 피스톤 (9) 을 포함한다. 압력 유체의 에너지를 저장하기 위한 에너지 저장 수단과 상기 제어 수단은 주기적으로 그리고 교번적으로 연결되어 압력 유체가 상기 작동실 (8) 에 유입되게 되고, 이어서 이 작동실 (8) 로부터 압력 유체를 방출한다. 상기 방법에서는, 압력 유체가 작동실 (8) 로 공급되어, 상기 전달 피스톤 (9) 을 공구 (3) 의 방향으로 미는 힘을 발생시키고 따라서 공구 (3) 에 응력 펄스가 발생된다. The invention relates to a frame (2) on which a tool (3) is mounted so as to be movable in the longitudinal direction and a pressure fluid supply to the impact device (1) together with a method for generating a stress pulse in a hydraulically actuated impact device. A hydraulically actuated impact device comprising control means 7 is provided. The impact device 1 comprises an operating chamber 8 and a transfer piston 9 moving within the operating chamber. The energy storage means for storing the energy of the pressure fluid and the control means are connected periodically and alternately so that the pressure fluid enters the operating chamber 8, and then discharges the pressure fluid from the operating chamber 8. do. In this method, a pressure fluid is supplied to the operating chamber 8 to generate a force that pushes the transfer piston 9 in the direction of the tool 3 and thus to generate a stress pulse on the tool 3.

Percussive-action hydraulic device

Device for pneumatic impact mechanism with throttling air distribution

FIELD: construction.SUBSTANCE: invention relates to the field of construction equipment for destruction of strong materials of artificial and natural origin, in particular, in pneumatic machines of impact action. Device air-inlet rod has blind cavity-chamber with inlet channel for inlet of network air and with closed end on the side of idle stroke chamber. Outputs of throttle inlet channels on side wall of rod are made in the form of tiers of radial throttle intake channels and radial throttle trigger channels separately for working stroke chamber and idle stroke chamber and so, that the throttling inlet channels are made on the striker movement section, which is less than the distance between the cutting edges on the side of the striker ends, and the radial throttle starting channels for the working stroke chamber are made at the level of the cutting edge of the striker end on the side of the working stroke chamber in the striker position, supported on the annular flange, and radial starting throttles for idle stroke chamber are made at level of cutoff edge of striker end from idle stroke chamber in hammer position resting on working tool shank.EFFECT: increasing internal air energy and efficiency of application of variable cross-section areas of throttle channels at outlet into working chambers, higher efficiency of air usage at its expansion and increased energy of single impact transmitted to working tool.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 728 067 C2 (51) МПК E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21C 37/24 (2020.02); B25D 9/14 (2020.02); B25D 9/26 (2020.02) (21)(22) Заявка: 2018123908, 29.06.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 28.07.2020 (43) Дата публикации заявки: 30.12.2019 Бюл. № 1 (45) Опубликовано: 28.07.2020 Бюл. № 22 2 7 2 8 0 6 7 R U (56) Список документов, цитированных в отчете о поиске: SU 1239303 ...

Hammering device and method of surge generation

FIELD: mining. ^ SUBSTANCE: invention refers to hammering devices and to methods of surge generation in hammering devices. The hammering device consists of a frame, wherein designed to length travel tool is assembled, of means for control over working fluid supply in the hammering device, of means for generating a surge in the tool by means of working fluid pressure, of a working chamber completely filled with working fluid and of means of charging working fluid with energy, when working fluid is supplied to the hammering device for surge generation. A transmission piston is installed in the working chamber; this piston is designed to move the tool lengthwise relative to the frame. The transmission piston contacts the tool at surge generation. The means of control provide abrupt growth of pressure in the working chamber for generating a surge in the tool and termination of surge generating in the tool during working fluid kick form the working chamber to return the transmission piston into its initial position. ^ EFFECT: decreased dynamic loads in hammering device. ^ 29 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 353 507 (13) C2 (51) МПК B25D 9/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006103362/02, 06.07.2004 (24) Дата начала отсчета срока действия патента: 06.07.2004 (43) Дата публикации заявки: 27.07.2006 (56) Список документов, цитированных в отчете о поиске: WO 03004822 A1, 16.01.2003. SU 694636 A1, 30.10.1979. SU 1028840 A1, 15.07.1983. RU 2079735 C1, 20.05.1997. SU 1798165 A1, 28.02.1993. 2 3 5 3 5 0 7 R U (86) Заявка PCT: FI 2004/000429 (06.07.2004) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 07.02.2006 (87) Публикация PCT: WO 2005/002802 (13.01.2005) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. С.А.Дорофееву (54) УДАРНОЕ УСТРОЙСТВО И СПОСОБ ГЕНЕРИРОВАНИЯ ...

Hydraulic impact device

本发明提供一种能够维持冲击能量，并且使活塞冲程短冲程化从而增大冲击输出的液压式冲击装置。该液压式冲击装置包括：缸体(100)；活塞(200)，滑动嵌合于缸体(100)内部；活塞前室(110)和活塞后室(111)，被划分在活塞(200)的外周面与缸体(100)的内周面之间，并隔开配置在轴向的前后；切换阀机构(130)，将活塞前室(110)和活塞后室(111)的至少一方切换成高压回路(101)和低压回路(102)的至少一方来驱动活塞(200)；以及作为施力单元的加速活塞(410)，设置于活塞(200)的后方，并在活塞(200)的后退工序中，在将制动力作用于活塞(200)的定时，抵接于活塞(200)来对活塞(200)向前方施力。

Percussive device

Arrangement in connection with a hydraulically operated impact device, such as a breaking apparatus

본 발명은 파쇄 장치 따위의 유압식 충격 장치로서, 충격 피스톤(2)과, 충격 장치의 안팎으로 압력유를 이송하기 위한 수단과, 축압기로 구성된 유압식 충격 장치에 관한 것이다. 본 발명에 따라, 축압기는 충격 피스톤(2)을 둘러싸는 환상 공간으로서 형성된다. 축압기는 프레임(5)과 슬리브(9) 사이에 배열된 슬리브형 다이어프램(11)에 의해 분리되는 슬리브형 압력실(6a, 6b)로 이루어진다. 압력실(6a, 6b)은 프레임의 둘레에 배치된 슬리브(9)의 내주 및 프레임(5)의 외주에 상호 대향하는 리세스가 제공될 수 있도록 형성된다.

Method for switching between striking stroke lengths of a percussive tool striking piston

This switching method is adapted to change the striking stroke of the striking piston 1 between a short striking stroke and a long striking stroke so that the striking tool is started and the striking device is operated with a short striking stroke for a predetermined period of time from the start thereof And actuating the control device 16 to operate the impact device with a long striking stroke after a predetermined period of time.

Working machine

차체(4)에 붐(5)을 상하 요동 가능하게 설치하고, 해당 붐에 아암(7)을 상하 요동 가능하게 설치하여, 해당 아암에 버킷(10)을 상하 회전 가능하게 설치하고, 상기 붐, 상기 아암 및 상기 버킷을 붐 실린더(6), 아암 실린더(8) 및 버킷 실린더 (11)로 각각 구동하도록 하여, 상기 아암에 진동 발생 장치(13)를 설치하고, 해당 진동 발생 장치에 전압구(19), 치즐(58) 또는 항타구를 교환 가능하게 설치하며, 상기 붐 실린더, 아암 실린더 및 버킷 실린더 중 적어도 하나의 실린더의 신장실과 수축실을 연통하여 탱크(78)에 연통하거나 또는 차단하는 플로트 밸브(84)를 설치하여, 전압 작업시에는 상기 플로트 밸브를 개방하고, 파쇄 작업시 및 항타 작업시에는 상기 플로트 밸브를 폐쇄하도록 한 작업 기계이다. The boom 5 is vertically swingably mounted on the vehicle body 4 and the arm 7 is pivotally mounted on the boom so that the bucket 10 is vertically rotatably mounted on the arm. The arm and the bucket are driven by the boom cylinder 6, the arm cylinder 8 and the bucket cylinder 11 so that the arm is provided with the vibration generating device 13, 19, a chisel 58, or an anti-tip ball is interchangeably provided, and a float (not shown) that communicates with the tank 78 by communicating the extension chamber and the shrinkage chamber of the cylinder of at least one of the boom cylinder, the arm cylinder, A valve 84 is provided to open the float valve at the time of voltage operation and to close the float valve at the time of crushing operation and hunting operation.

Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device

응력 펄스를 발생시키며 충격 장치의 방법으로서, 작업 대상물을 향하여 결과 힘이 공구를 가압하도록 충격 장치의 프레임과 공구 사이에 위치하는 작동실에 압력 펄스로서 압력 유체를 공급한다. 충격 장치는 작동실과, 충격 장치의 프레임과 공구 사이에 힘이 발생되어 작업 대상물을 향해 공구가 가압되도록 압력 펄스로서 압력 유체를 이송시키기 위한 수단을 포함한다. As a method of the impact device generating a stress pulse, a pressure fluid is supplied as a pressure pulse to an operating chamber located between the tool and the frame of the impact device such that the resulting force presses the tool toward the workpiece. The impact device includes means for transferring a pressure fluid as a pressure pulse such that a force is generated between the operating chamber and the frame of the impact device and the tool to press the tool toward the workpiece.

Hydraulic drive for an impact tool

Vibration generator

피스톤을 확실하게 왕복운동 할 수 있도록 한다. 수압면적이 작은 제1수압실(34)의 압유와, 제1수압실(4)과 수압면적이 큰 제2수압실(5)의 수압면적차에 의하여 왕복운동하는 피스톤(3)을 구비한 실린더부(6)와, 제1압력실(13), 제2압력실(14)의 압력에 의하여 제1위치, 제2위치로 바꿔서 상기한 제2수압실(5)을 유압원과 탱크로 서로 번갈아 연통하는 피스폰(8)을 구비한 변환 밸브(9)와, 상기한 피스톤(3)의 이동에 의하여 변환밸브(9)의 제1압력실(13)을 유압원과 탱크로 연통제어하는 서어보밸브(19)로 구성된 진동발생장치이다.

Double-piston pneumatic hammer

FIELD: drilling.SUBSTANCE: invention relates to drilling equipment. The double-piston pneumatic hammer includes a body with longitudinal channels and two coaxially located cylindrical cavities separated by a divider with holes, a hollow and a solid pistons located inside the cylindrical cavities, a striker installed coaxially with the pistons, and an air distribution unit. The air distribution unit includes a valve box with an inlet, a seat, and an air duct, and a valve made in the form of a triangular or square plate, installed inside the box with a gap. Two holes are made in the body of the pneumatic hammer: one exhaust radial hole in the central part of the cylindrical cavity of the area of the solid piston, and the second axial hole between the inner cavity of the valve box and the cylindrical cavity of the area of the solid piston.EFFECT: structure and manufacture are simplified, reliability of operation is increased, weight and size of the apparatus are reduced.1 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 759 466 C1 (51) МПК E21B 4/14 (2006.01) E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 4/14 (2021.08); E21C 37/24 (2021.08); B25D 9/14 (2021.08); B25D 9/16 (2021.08); B25D 9/24 (2021.08) (21)(22) Заявка: 2021115587, 31.05.2021 (24) Дата начала отсчета срока действия патента: 15.11.2021 Приоритет(ы): (22) Дата подачи заявки: 31.05.2021 2 7 5 9 4 6 6 R U Адрес для переписки: 362021, Рес. Северная Осетия - Алания, г. Владикавказ, ул. Николаева, 44, ФГБОУ ВО Северо-Кавказский горно-металлургический институт Государственнй технологический университет, отдел интеллектуальной собственности, Герасименко Татьяна Евгеньевна (54) Двухпоршневой пневмоударник (57) Реферат: Изобретение относится к буровой технике. Двухпоршневой пневмоударник включает корпус с продольными каналами и двумя соосно расположенными цилиндрическими полостями, разделенными перегородкой с ...

Hydraulic impact mechanism

A hydraulic percussion machine, comprising a body carrying hydraulic passages and valves, and having a gas-filled, hydraulic pressure accumulator for storing the stroke energy which accelerates a piston to strike against a tool. The percussion machine has a separate hydraulic stroke standardizing circuit by action of which the piston stroke is independent of the liquid pressure in the high pressure line supplying the machine and of the volumetric flow.

Pneumatic impact mechanism

FIELD: construction.SUBSTANCE: invention relates to the field of construction and mining, in particular, to pneumatic devices of percussive action. Pneumatic percussion mechanism contains a cylindrical body with exhaust channels, annular flange with a through central hole, lids with inlet, working tool with shank, stepped drummer with rod and piston parts, mounted in the central hole of the annular flange rod with a piston part with a channel-groove, constantly located in the through axial hole of the stepped drummer, the sleeve of the cylindrical body with the hole for the passage of the rod part of the stepped drummer and forming an annular isthmus in the sleeve, limiting the amount of movement of the stepped impactor, fixed with respect to the cylindrical body cup with a channel for supplying air, an annular distribution chamber in the sleeve of the cylindrical body, the network air chamber in the lid on the side of the annular flange, the receiver chamber between the cup and the lid, the idle chamber on the shank side of the working tool, held by the spring relative to the cylindrical body, and the channel-groove on the side surface of the piston rod is made with a changing geometric section, increasing from the side surface of the piston part from the side of the rod to the end of its piston part from the side of the through axial bore of the stepped drummer. Between the rod part of the stepped impactor and the cylindrical body, on the side of the annular isthmus of the sleeve, an annular controlled working stroke chamber is formed, and on the side surface of the rod part of the stepped impactor, an airflow bypass channel is made with a varying geometric section in the form of right-angled triangles with decreasing cross-sectional areas to the sides of the annular distribution chamber and the annular controlled chamber of the working stroke, or in the form of a right-angled triangle with the apex facing the annular distribution chamber, either in the form of a ...

DEVICE FOR PNEUMATIC SHOCK MECHANISM WITH THROTTLE AIR DISTRIBUTION

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 123 908 A (51) МПК E21B 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018123908, 29.06.2018 Приоритет(ы): (22) Дата подачи заявки: 29.06.2018 (43) Дата публикации заявки: 30.12.2019 Бюл. № 1 R U (57) Формула изобретения Устройство для пневматического ударного механизма с дроссельным воздухораспределением, содержащее стакан с каналом впуска воздуха из сети, цилиндрический корпус, размещенный в нем ударник со сквозным осевым отверстием, разделяющим цилиндрический корпус на камеры рабочего и холостого ходов, кольцевой фланец с размещенным вдоль продольной оси стержнем, пропущенным в сквозное осевое отверстие ударника, дроссельный канал с выходом для впуска воздуха в камеру холостого хода, выполненный в стержне, выпускные каналы, в стенке цилиндрического корпуса, дроссельный канал с выходом впуска воздуха в камеру рабочего хода, рабочий инструмент с хвостовиком входящим в камеру холостого хода и удерживаемый относительно цилиндрического корпуса колпаком с пружиной, дроссельный канал для выпуска воздуха в камеру холостого хода выполненный в стержне, на боковой поверхности которого размещены выходы каналов для впуска воздуха в камеры холостого и рабочего ходов, при этом радиальные, относительно продольной оси проходные сечения выходов дроссельных каналов выполнены переменными, а сквозное осевое отверстие в ударнике имеет расширенное коническое сечение со стороны торцов ударника, а расстояние между расширенными коническими сечениями сквозного осевого отверстия в ударнике меньше длины осевой проекции выхода каждого из дроссельных каналов для выпуска воздуха в камеры холостого и рабочего ходов, отличающееся тем, что в стержне выполнена глухая полость-камера с впускным каналом для впуска сетевого воздуха и с закрытым торцом со стороны камеры холостого хода, выходы дроссельных каналов впуска на боковой стенке стержня выполнены в виде ярусов радиальных дроссельных ...

Impacting tool of lever

내용 없음. No content.

Lever device in impact tool

Pneumatic hammer

Изобретение относится к машиностроению и может быть использовано в горном деле, строительстве и в других отраслях народного хозяйства. Пневматический молоток содержит рукоятку с втулкой, образующие воздушную амортизационную камеру, кожух, установленный в кожухе ствол с рабочим инструментом, с ударником и воздухоподводящим патрубком и воздухораспределительное устройство. Воздухоподводящий патрубок выполнен ступенчатым с большой ступенью, посредством которой он закреплен в стволе, и с малой ступенью, установленной во втулке с возможностью перемещения и выполненной с закрытым торцем и радиальными отверстиями на боковой ее поверхности для периодического сообщения воздухораспределительного устройства с сетью сжатого воздуха. В результате обеспечивается упрощение конструкции, повышение удобства эксплуатации и эффективности виброгашения. 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 623 936 C2 (51) МПК B25D 9/14 (2006.01) E21C 37/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015153005, 09.12.2015 (24) Дата начала отсчета срока действия патента: 09.12.2015 (72) Автор(ы): Касаткин Виктор Алексеевич (RU) (73) Патентообладатель(и): Касаткин Виктор Алексеевич (RU) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: SU 1785886 A1, 07.01.1993. RU Приоритет(ы): (22) Дата подачи заявки: 09.12.2015 (43) Дата публикации заявки: 15.06.2017 Бюл. № 17 2278776 C1, 27.06.2006. RU 2353509 C2, 27.04.2009. GB 2345928 A, 26.07.2000. WO 9619323 A1, 27.06.1996. Адрес для переписки: 426077, Удмуртская рес., г. Ижевск, ул. Красноармейская, 76, кв.311, Касаткину В.А. 2 6 2 3 9 3 6 R U (57) Формула изобретения Пневматический молоток, содержащий рукоятку с втулкой, образующие воздушную амортизационную камеру, кожух, установленный в кожухе ствол с рабочим инструментом, ударником и воздухоподводящим патрубком и воздухораспределительное устройство, отличающийся тем, что воздухоподводящий ...

Компрессионно-вакуумная ударная машина двойного действия

Изобретение относится к горному делу и строительству - к машинам ударного действия, применяется при отбойке монолитов, для разрушения устаревших фундаментов при реконструкции зданий и забивке свай, а также в сейсморазведке как источник возбуждения сейсмических волн на малых глубинах. Машина содержит корпус и размещенный в нем ударник, образующие нижнюю и верхнюю камеры, вакуум-компрессор, фиксатор для ударника, выполненный в виде магнита и установленный в корпусе, поворотный распределитель рабочей среды с заслонкой, постоянно соединенный с атмосферой и попеременно компрессионным каналом с вакуум-компрессором. К нижней части корпуса присоединен обратный клапан сброса давления рабочей среды. Упомянутый поворотный распределитель рабочей среды, расположенный в верхней камере, соединен попеременно вакуумным каналом с вакуум-компрессором, а его заслонка, жестко связанная с днищем поворотного распределителя рабочей среды в его нижней части и оснащенная поворотным переключателем с пружиной кручения, установлена с возможностью попеременного соединения верхней камеры с компрессионным и вакуумным каналами вакуум-компрессора. Нижняя камера постоянно соединена с атмосферой. Упомянутый обратный клапан установлен выше ударника в его нижнем положении, а фиксатор для ударника смонтирован на монтажном диске и подпружинен относительно него. Обеспечивается повышение эффективности и надежности работы машины. 1 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 701 006 C1 (51) МПК E02D 7/02 (2006.01) E21C 37/22 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E02D 7/02 (2019.05); E21C 37/22 (2019.05); B25D 9/14 (2019.05) (21)(22) Заявка: 2019105274, 26.02.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 26.02.2019 (45) Опубликовано: 24.09.2019 Бюл. № 27 2 7 0 1 0 0 6 R U (56) Список документов, цитированных в отчете о поиске: RU 147963 U1, 20 ...

MANAGEMENT OF THE WORK FREQUENCY OF THE SHOCK MECHANISM

1. Устройство управления (S) приводимого в действие посредством давления рабочей среды ударного механизма, снабженного средством реверсирования (2) осевой подачи давления на ударный поршень и рециркуляции рабочей среды, отличающееся тем, что переключаемый ударным поршнем при реверсировании (2) в качестве линии рециркуляции рабочей среды, по меньшей мере, один канал, содержит, по меньшей мере, одно переключаемое средство (3) для регулирования расхода.2. Устройство управления (S) по п. 1, отличающееся тем, что два канала, переключаемых ударным поршнем при реверсировании (2) в качестве линии рециркуляции рабочей среды, содержат переключаемые средства (3, 3') для регулирования расхода.3. Устройство управления (S) по п. 2, отличающееся тем, что переключаемые средства (3, 3') для регулирования расхода рабочей среды регулируются независимо друг от друга.4. Применение устройства управления (S) приводимого в действие посредством давления рабочей среды ударного механизма по одному из пп. 1-3 в устройстве для открывания и/или закрывания выпускного отверстия металлургической емкости. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B25D 9/12 (13) 2014 108 199 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014108199/02, 03.03.2014 (71) Заявитель(и): ТМТ-ББГ РИСЕРЧ ЭНД ДЕВЕЛОПМЕНТ ГМБХ (AT) Приоритет(ы): (30) Конвенционный приоритет: 04.03.2013 AT А 50139/2013 Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и партнеры" A 2 0 1 4 1 0 8 1 9 9 R U Стр.: 1 A (57) Формула изобретения 1. Устройство управления (S) приводимого в действие посредством давления рабочей среды ударного механизма, снабженного средством реверсирования (2) осевой подачи давления на ударный поршень и рециркуляции рабочей среды, отличающееся тем, что переключаемый ударным поршнем при реверсировании (2) в качестве линии рециркуляции рабочей среды, по меньшей мере, один канал, содержит, по меньшей ...

Drilling hydraulic percussion device

In an hydraulic rock drill there is an hydraulic so called recoil damper that damps the reflected shock waves that propagates from the rock backwardly through the drill stem. The damper comprises a support piston (68) slidably in a cylinder so that a pressure chamber (20) is formed in which the support piston has a piston area. Narrow clearances (75,76) between the support (68) and its cylinder form leak passages and these leak passages are coupled in series with an orifice restrictor (84) to tank. The pressure peaks in the pressure chamber do not reach sealing rings located at the outer portions of the clearances.

Impact piston

FIELD: mining. SUBSTANCE: impact piston for the rock drilling machine, containing the control cylinder, the distributor and the working medium under the pressure, includes the control edge, adapted to provide changes of the distributor position in the direction parallel to the axial direction of the impact piston, when the impact piston moves in the impact direction relatively to the control cylinder. The control edge of the impact piston contains at least one recess, provided on the outer periphery of the control edge and configured to provide the start of changing the distributor state, before the control edge of the impact piston will pass the corresponding control edge, provided on the distributor or the control cylinder. EFFECT: weathering reduction at the working space. 14 cl, 8 dwg С 2 2624492 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) м эм а а (13) (51) МПК Е21В 1/24 (2006.0Т) Е21В 1/38 (2006.01) Е21В 4/14 (2006.01) В25р 9/14 (2006.01) \ / \ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015149590, 18.11.2015 (72) Автор(ы): МУУТТОНЕН Тимо (ЕП, (24) тата чала отсчета срока действия патента: КОСКИМЯКИ Антти (ЕП. "0" КОТАЛА Ари (Е|), Дата регистрации: ЛЕЙНО Тимо (ЕП) 04.07.2017 (73) Патентообладатель(и): Приоритет(ь): САНДВИК МАЙНИНГ ЭНД (30) Конвенционный приоритет: КОНСТРАКШН ОЙ (ЕП 20.11.2014 ЕР 14194091.6 (43) Дата публикации заявки: 24.05.2017 Бюл. № 15 (45) Опубликовано: 04.07.2017 Бюл. № 19 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (56) Список документов, цитированных в отчете о поиске: КО 2027937 С1, 27.01.1995. КО 2013540 СТ, 30.05.1994. КО 2042812 СТ, 27.08.1995. \О 2004/073932 АТ, 02.09.2004. 05 2010/0059242 АТ, 11.03.2010. (54) УДАРНЫЙ ПОРШЕНЬ (57) Реферат: Группа изобретений относится к области бурения. Ударный поршень для бурильной машины для горной породы, содержащей цилиндр управления, распределитель и рабочую среду под ...

PNEUMATIC HAMMER KASATKIN

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 153 005 A (51) МПК B25D 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015153005, 09.12.2015 (71) Заявитель(и): Касаткин Виктор Алексеевич (RU) Приоритет(ы): (22) Дата подачи заявки: 09.12.2015 (43) Дата публикации заявки: 15.06.2017 Бюл. № 17 (72) Автор(ы): Касаткин Виктор Алексеевич (RU) A 2 0 1 5 1 5 3 0 0 5 R U Стр.: 1 A (57) Формула изобретения 1. Пневматический молоток Касаткина, содержащий рукоятку с втулкой, образующие воздушную амортизационную камеру, кожух, установленный в кожухе ствол со ступенчатым воздухоподводящим патрубком, большой ступенью закрепленный в стволе и малой ступенью установлен во втулке с возможностью перемещения, отличающийся тем, что торец малой ступени закрыт, а на боковой ее поверхности выполнены радиальные отверстия, периодически сообщающие сеть сжатого воздуха с воздухораспределительным устройством. 2. Пневматический молоток по п. 1, отличающийся тем, что ствол сверху закрыт гайкой, в которой выполнена воздушная амортизационная камера и в которую скользяще помещена малая ступень воздухоподводящего патрубка с возможностью перемещения, а большая ступень закреплена во втулке рукоятки и при этом на малую ступень установлено уплотнительное резиновое кольцо. 2 0 1 5 1 5 3 0 0 5 (54) ПНЕВМАТИЧЕСКИЙ МОЛОТОК КАСАТКИНА R U Адрес для переписки: 426077, Удмуртская рес., г. Ижевск, ул. Красноармейская, 76, кв.311, Касаткину В.А.

Two-piston air hammer

FIELD: machine engineering. SUBSTANCE: device includes a housing with two coaxially located cylindrical cavities separated by a partition with an opening, two pistons located within the cylindrical cavities having cavities of driving and idle strokes, a shank coaxially arranged with the pistons, an air distribution unit with air supply and air discharge channels of equal diameter and a working slide valve in the form of a hollow cylinder, installed in a cylindrical cavity, with the formation of chambers. The housing is equipped with a compressed air supply chamber. One of the pistons is made hollow with a hollow rod, and the second piston is made solid with two solid rods. One of the rods installed in the cavity of the other piston and the opening of the partition between the cylinders. The second rod is mounted coaxially to the first rod on the opposite side of the piston and is provided with a pusher disposed at its end. The rod with the pusher is made of variable cross-section and is installed with a gap with the possibility of moving in the cavity of the working slide valve. The slide valve is provided with a supply and a discharge annular grooves, wherein the supply groove is connected to the compressed air supply chamber and to the cylindrical cavities of the pistons by channels, and the discharge groove is connected to the atmosphere by air discharge channels. The grooves are located at a distance from each other equal to three channel diameters, the width of the grooves is equal to the diameter of the channel, the distance between the channels in the area of the working slide valve is equal to one channel diameter, and the stroke of the working slide valve is equal to two channel diameters. EFFECT: increased operational characteristics and performance reliability. 2 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 331 C1 (51) МПК E21B 4/14 (2006.01) E21B 1/24 (2006.01) E21B 1/38 (2006.01) E21C 37/24 (2006.01) B25D 9/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ...

Hydraulically operated percussion mechanism

The object of the invention is to configure a percussion mechanism in such a way that the number of blows - and hence the return stroke and the individual impact energy of the percussion piston - is matched automatically to changing working conditions via an internal control system as a function of the contact pressure on the tool insertion end. <??>For this purpose the invention proposes to hold a contact-pressure control element (31) at least temporarily in contact with the insertion end (12) under the action of a resetting arrangement (31a, 22) acting in the striking direction (arrow 18) and, via this contact-pressure control element, to connect a control conduit (35) either to a pressure conduit (22) or to a balanced return conduit (25). <??>Via the control conduit, a switching element (30) can be actuated in such a way that the control device (4) alternately switching over the movement of the piston performs the reversing movement into the working-stroke position at an earlier or later point in time during the return stroke (arrow 19) of the percussion piston, thereby triggering the working stroke of the percussion piston in the striking direction. <IMAGE>

Control of operating frequency of shock mechanism

FIELD: machine building. SUBSTANCE: invention relates to a control apparatus impactor actuatable pressure fluid and acting in the two axial directions. Device comprises a housing with channels for the medium and move it to the reversing of the load of the tubular piston. Reversible portion comprises at least one part of the switch. Switching part is adapted to the axial positioning of said reversible portion and provides the ability to switch the flow control with two control values returned by the tubular piston medium depending on the position of the reversing switch to the side parts. EFFECT: as a result the technological capabilities are expanded. 4 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 581 324 C2 (51) МПК B25D 9/14 (2006.01) C21B 7/12 (2006.01) F27D 3/15 (2006.01) F01L 15/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014108199/02, 03.03.2014 (24) Дата начала отсчета срока действия патента: 03.03.2014 (72) Автор(ы): КАЙНДЛЬБАУЭР, Штефан (AT) (73) Патентообладатель(и): ТМТ-ББГ РИСЕРЧ ЭНД ДЕВЕЛОПМЕНТ ГМБХ (AT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.09.2015 Бюл. № 25 R U 04.03.2013 AT a 50139/2013 (45) Опубликовано: 20.04.2016 Бюл. № 11 2 5 8 1 3 2 4 R U (54) УПРАВЛЕНИЕ РАБОЧЕЙ ЧАСТОТЫ УДАРНОГО МЕХАНИЗМА (57) Реферат: Изобретение относится к устройству осевого позиционирования в указанной управления ударного механизма, приводимого в реверсивной части и обеспечивает возможность действие давлением рабочей среды и переключения регулирования расхода с двумя действующего в двух осевых направлениях. величинами регулирования возвращаемой Устройство содержит корпус с каналами для посредством трубчатого поршня среды в проведения среды и перемещающуюся в нем зависимости от положения части переключения реверсивную часть для нагружения трубчатого в реверсивной части. В результате расширяются поршня. Реверсивная часть содержит по меньшей технологические ...

Apparatus for generating impulse-dynamic process forces

An apparatus for generating impulse-dynamic process forces includes a pressure chamber, a connecting chamber and a bolt chamber. The pressure chamber includes a plunger arranged to be pushed into the pressure chamber for compression of a hydraulic medium located therein. In the connecting chamber there is displaceably arranged a stepped piston which has a valve body for closing an orifice connecting the pressure chamber to the connecting chamber. In the bolt chamber there is located a displaceable impact bolt which has a first bolt portion and a second bolt portion. The first bolt portion seals an interior space of the bolt chamber that surrounds the second bolt portion. Connected to the bolt chamber there is at least one pressure reservoir containing pressurised pressure medium, which pressure reservoir is in communicating connection via a connection port with the interior space of the bolt chamber.

Percussion device

Impact device and method for generating stress pulse therein