公开(公告)号：US09937611B2

公开(公告)日：2018-04-10

申请号：US14435209

申请日：2013-11-22

Applicant: Atlas Copco Rock Drills AB

Inventor： Erik Jakobsson ,  Thomas Johansson

IPC: B25D9/20 ,  B25D9/12 ,  B25D9/18 ,  F16K27/04 ,  F15B13/02

CPC classification number: B25D9/20 ,  B25D9/12 ,  B25D9/18 ,  F15B13/02 ,  F16K27/041

Abstract: A device in a hydraulic rock drilling machine (1) has a distribution valve (7, 7′, 7″) for controlling hydraulic flow to different parts of the rock drilling machine. The distribution valve has a valve body (8, 8′, 8″) which moves to and from in an axial direction inside a valve chamber (33). The valve chamber is limited in axial direction by two valve end walls (10, 11; 10′, 11′; 10″, 11″). One of the valve end walls is movable in an axial direction against an abutment (12, 12″) to define an end position for the valve body, and a pressing device (13, 13′, 13″) is provided for pressing at least one of the valve end walls against the abutment. A rock drilling machine includes the device.

公开(公告)号：US09840000B2

公开(公告)日：2017-12-12

申请号：US14574326

申请日：2014-12-17

Applicant: Caterpillar Inc.

Inventor： Vaino Esko Juvonen ,  Cody Moore

IPC: B25D9/26 ,  B25D9/14 ,  B25D9/18

CPC classification number: B25D9/26 ,  B25D9/145 ,  B25D9/18

Abstract: 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.

公开(公告)号：US09656377B2

公开(公告)日：2017-05-23

申请号：US14455715

申请日：2014-08-08

Applicant: CATERPILLAR INC.

Inventor： Cody Thomas Moore ,  Bart A. Fisher

IPC: F01B7/00 ,  B25D9/18 ,  F15B11/072 ,  B25D9/12 ,  B25D9/16

CPC classification number: B25D9/18 ,  B25D9/12 ,  B25D9/16 ,  B25D2250/375 ,  F15B11/072

Abstract: A self-charging assembly having a first side wall, a second side wall, a third sidewall, a first chamber, a second chamber, a first valve assembly, and a second valve assembly. The second side wall is disposed within the first side wall. The third sidewall connects the first side wall and the second side wall. The first chamber is defined by the first, second, and third sidewalls. The second chamber is disposed within the first chamber and is defined by the second side wall. The first valve assembly is configured to selectively place an interior portion of the second chamber in communication with an atmosphere outside of the self-charging assembly. The second valve assembly is configured to selectively place an interior portion of the first chamber in communication with the interior portion of the second chamber.

公开(公告)号：US09108311B2

公开(公告)日：2015-08-18

申请号：US13259793

申请日：2010-03-24

Applicant: Markku Keskiniva ,  Juha Piispanen ,  Mauri Esko

Inventor： Markku Keskiniva ,  Juha Piispanen ,  Mauri Esko

IPC: B25D9/16 ,  B25D9/18 ,  B25D9/22 ,  B25D17/24

CPC classification number: B25D9/18 ,  B25D9/22 ,  B25D17/245 ,  B25D2209/005 ,  B25D2217/0023

Abstract: The invention relates to a percussion device having a frame, a tool mounted movable in its longitudinal direction, the percussion device containing a work chamber having a movably mounted transmission piston to compress the tool so that a longitudinal stress pulse is generated to the tool, inlet and outlet channels for conducting the pressure fluid to the percussion device and away from it and a control valve that alternately directs the pressure fluid from the inlet channel to the work chamber to act on the transmission piston and, correspondingly, discharges the pressure fluid from the percussion device. The percussion device and trans-mission piston have channels that connect the pressure fluid that acted on the transmission piston to flow during the return movement of the transmission piston through the control valve and transmission piston to the pressure fluid outlet channel and cut off the flow when the transmission piston has returned to its initial position.

Abstract translation: 本发明涉及一种具有框架的冲击装置，可沿其纵向移动的工具，冲击装置包含具有可移动安装的传动活塞的工作室，以压缩工具，使得向工具产生纵向应力脉冲，入口 以及用于将压力流体传导到冲击装置并远离其的出口通道以及将压力流体从入口通道交替地引导到工作室以作用于传动活塞的控制阀，并且相应地将压力流体从 打击乐器 冲击装置和传动活塞具有将传动活塞上的压力流体连接到传动活塞通过控制阀和传动活塞返回到压力流体出口通道而返回运动期间流动的通道， 传动活塞已经返回到其初始位置。

公开(公告)号：US20140290971A1

公开(公告)日：2014-10-02

申请号：US14196378

申请日：2014-03-04

Applicant: TMT-BBG RESEARCH AND DEVELOPMENT GMBH

Inventor： Stefan KAINDLBAUER

IPC: B25D9/26

CPC classification number: B25D9/26 ,  B25D9/18 ,  C21B7/12 ,  C21C5/4653 ,  F27D3/1527

Abstract: Control device of an impact mechanism operable by a pressure media having an element for reversing the axial pressurization of the percussion piston and the return of the medium. In order to achieve a controllability of impact mechanisms by which the energy and the frequency of the moved percussion piston can be adjusted, at least one channel switchable by the reversal as a return line for the medium from the percussion hammer has at least one switchable element for the flow control.

Abstract translation: 冲击机构的控制装置可由具有用于反转冲击活塞的轴向加压和介质返回的元件的压力介质操作。 为了实现冲击机构的可控制性，通过该机构可以调节移动的冲击活塞的能量和频率，可以通过作为打击锤的介质的返回线的反转切换的至少一个通道具有至少一个可切换元件 用于流量控制。

公开(公告)号：US08240394B2

公开(公告)日：2012-08-14

申请号：US12579077

申请日：2009-10-14

Applicant: Shigeki Kobayashi

Inventor： Shigeki Kobayashi

IPC: B25D17/00

CPC classification number: B25D9/18 ,  B25D17/24 ,  B25D2250/181 ,  B25D2250/371

Abstract: A power-driven hammer including a body including a tubular housing and a barrel assembly received in the housing. The barrel assembly has an at-rest position relative to the housing. The barrel assembly includes a barrel having a forward end adapted to hold a tool, an opening, and a rearward end. The barrel assembly includes a mass received in the opening of the barrel. The mass moves in the barrel opening when the hammer is operating through a power stroke and a return stroke. The barrel assembly moves forward and rearward from its at-rest position relative to the housing when the hammer is operating. The hammer includes a vibration reducing mechanism connecting the barrel assembly to the body reducing shock transmitted to the housing as the mass moves forward and rearward in the barrel.

Abstract translation: 一种电动锤，其包括主体，该主体包括容纳在壳体中的管状壳体和筒组件。 枪管组件相对于壳体具有静止位置。 筒组件包括具有适于保持工具，开口和后端的前端的筒体。 桶组件包括容纳在桶的开口中的质量。 当锤通过动力行程和返回行程操作时，质量块在枪管开口中移动。 当锤子操作时，枪管组件相对于壳体从其静止位置向前和向后移动。 锤子包括一个减振机构，当机体在筒体中向前和向后移动时，将筒体组件连接到主体，从而减少传递到壳体的冲击。

公开(公告)号：US07836969B2

公开(公告)日：2010-11-23

申请号：US11794615

申请日：2006-01-04

Applicant: Erkki Ahola ,  Mauri Esko ,  Aimo Helin ,  Markku Keskiniva ,  Jorma Mäki ,  Juha Piispanen

Inventor： Erkki Ahola ,  Mauri Esko ,  Aimo Helin ,  Markku Keskiniva ,  Jorma Mäki ,  Juha Piispanen

IPC: E21B7/001

CPC classification number: B25D9/18 ,  B25D9/22 ,  B25D9/26

Abstract: The invention relates to a method for controlling a pressure fluid operated percussion device comprising a working chamber for pressure fluid and in the working chamber a transmission piston installed movably with respect thereto so as to enable a tool installed in the percussion device to be pressed against a material to be broken in order to generate a stress pulse, and to a percussion device.The method comprises adjusting the length of the stress pulse by adjusting the time during which pressure influences the transmission piston. The percussion device comprises an adjustment element and adjustment means for adjusting the influence time of the pressure of the pressure fluid being fed via a control valve and influencing the transmission piston.

Abstract translation: 本发明涉及一种用于控制压力流体操作的冲击装置的方法，其包括用于压力流体的工作室，并且在工作室中，可移动地安装有相对于其的传动活塞，以使安装在冲击装置中的工具能够被压在 为了产生应力脉冲而被破坏的材料和冲击装置。 该方法包括通过调节压力影响传动活塞的时间来调节应力脉冲的长度。 冲击装置包括调节元件和调节装置，用于调节通过控制阀供给的压力流体的压力的影响时间并影响传动活塞。

公开(公告)号：US07775295B1

公开(公告)日：2010-08-17

申请号：US12018623

申请日：2008-01-23

Applicant: Donald J. Glaser ,  Lon C. Tidwell ,  Kevin M. James

Inventor： Donald J. Glaser ,  Lon C. Tidwell ,  Kevin M. James

IPC: B25D9/14

CPC classification number: B25D9/18 ,  B25D9/04 ,  B25D2250/341 ,  Y10T137/7722 ,  Y10T137/87249

Abstract: A control system for use in conjunction with a primary power system and operable to control a pneumatically powered hand-held tool broadly comprises an air delivery assembly operable to communicate with a pressurized air source; a control assembly including an exhaust line from the primary power system and to the control assembly, a spool valve in fluid communication with the supply line and the exhaust line, and a control line in fluid communication with the spool valve and the hand-held tool; a tool assembly comprising the hand-held tool for performing delicate hand working operations; and a housing for at least partial storage of the air delivery assembly and the control assembly. The primary power system and the control system operate in conjunction with each other to both power and precisely control a pneumatically powered hand-held tool.

Abstract translation: 与主电力系统一起使用并且可操作以控制气动动力手持工具的控制系统广泛地包括可操作以与加压空气源连通的空气输送组件; 包括从主电力系统和控制组件的排气管线的控制组件，与供应管线和排气管线流体连通的滑阀，以及与滑阀和手持工具流体连通的控制线 ; 包括用于执行精细手工操作的手持工具的工具组件; 以及用于至少部分地存储空气输送组件和控制组件的壳体。 主电力系统和控制系统相互协调工作，既能动力又精确地控制气动的手持式工具。

公开(公告)号：US20090229843A1

公开(公告)日：2009-09-17

申请号：US11920828

申请日：2006-06-14

Applicant: Kurt Andersson

Inventor： Kurt Andersson

IPC: B25D9/20 ,  B25D9/26

CPC classification number: B25D9/20 ,  B25D9/18 ,  B25D2209/007 ,  B25D2250/275 ,  E21C3/24

Abstract: A valve device (V, 4′) for controlling the movement in a machine housing (2) of a reciprocating percussion piston (3) of a percussion device (1) for a rock drilling machine with a first chamber (5) that can be pressurized for forward driving of the percussion piston (3) and a second chamber (8) that can be pressurized for back-driving of the percussion piston (3), wherein the valve device includes a to and fro movable valve element (20), the movement of which being controlled as a response to the position of a valve portion (V) of the percussion piston in a valve housing portion by periodically pressurising a signal chamber (21) actuating the movement of the valve element over signal conduit means (22, 23, 24). Said signal conduit means includes at least two signal conduit portions (23, 24), which are arranged for essentially simultaneous pressurising through co-operation between a corresponding number of valve control edges (25, 26) on the valve portion of the percussion piston and edges (34, 35) or control chambers in the machine housing. The invention also concerns a percussion device and a rock drilling machine.

Abstract translation: 一种用于控制用于具有第一室（5）的凿岩机的冲击装置（1）的往复冲击活塞（3）的机械壳体（2）中的运动的阀装置（V，4'），所述第一室可以是 加压用于冲击活塞（3）的前进驱动和可被加压以用于冲击活塞（3）的反向驱动的第二室（8），其中所述阀装置包括来回可动阀元件（20） 其运动通过周期性地对通过信号管道装置（22）致动阀元件的运动的信号室（21）作为对冲击活塞的阀部分（V）的位置的响应进行控制， ，23,24）。 所述信号管道装置包括至少两个信号管道部分（23,24），其布置成基本上同时通过冲击活塞的阀部分上的相应数量的阀控制边缘（25,26）之间的协作加压，以及 边缘（34,35）或机器壳体中的控制室。 本发明还涉及一种打击乐器和一种凿岩机。

公开(公告)号：US20090223689A1

公开(公告)日：2009-09-10

申请号：US12086847

申请日：2007-01-26

Applicant: Peter Birath

Inventor： Peter Birath

IPC: B25D9/26 ,  B25D9/14

CPC classification number: B25D9/18 ,  B25D9/26 ,  E21B1/02

Abstract: A percussion device having, inside a machine housing (7), a movable percussive piston (2), the movement of which being controllable through a movable valve body (5), which is arranged to, in dependence of a signal indicating the axial position of the percussive piston, alternately to a pressure source and to a low pressure connect a chamber, in which a driving surface on the piston (2) is located, whereby control channel means (10, 12; 10′, 12′) for transmitting said signal have opening means opening into a cylinder space for receiving the piston (2) for co-operation with a control edge (11,13) on the piston. Adjustment means are arranged for making possible an adjustment of which axial position of the piston said signal is transmitted. The adjustment means includes at least one axially displaceable control means (9, 9′, 9″), which contacts the piston, and which includes a portion (10, 12; 10′, 12′) of the control channel means including the opening means. The invention also concerns a rock drilling machine and a method.

Abstract translation: 一种在机器壳体（7）内具有活动冲击活塞（2）的冲击装置，可移动的冲击活塞（2）通过可移动的阀体（5）可控制，该可移动的冲击活塞根据指示轴向位置 冲击活塞交替地到压力源和低压连接一个其中活塞（2）上的驱动表面所在的腔室，由此控制通道装置（10,12; 10'，12'）用于传送 所述信号具有开口装置，该开启装置通向气缸空间，用于接收活塞（2），用于与活塞上的控制边缘（11,13）配合。 调整装置被布置成使得可以调节所述信号的活塞的哪个轴向位置被传送。 调节装置包括至少一个与活塞接触并且包括控制通道装置的部分（10,12; 10'，12'）的可轴向移动的控制装置（9,9'，9“），该部分包括 开放手段。 本发明还涉及一种凿岩机和一种方法。