公开(公告)号：US11027403B2

公开(公告)日：2021-06-08

申请号：US16011001

申请日：2018-06-18

申请人： Caterpillar Inc.

发明人： Jordan Beckhusen ,  Cody Moore ,  Jason Ray Walker

IPC分类号： B25D9/18 ,  B25D9/04 ,  B25D17/00 ,  E02F3/96

摘要： A hydraulic hammer includes a housing defining a cutout and a power cell slidably received within the housing. The power cell includes a valve assembly extending from a side of the power cell. The valve assembly is at least partially received within the cutout of the housing. The hydraulic hammer further includes a pair of wear plates at least partially disposed around the valve assembly of the power cell. Each of the pair of wear plates is coupled to at least one of the power cell and the housing.

公开(公告)号：US10377028B2

公开(公告)日：2019-08-13

申请号：US15068645

申请日：2016-03-14

申请人： Caterpillar Inc.

发明人： Joshua Grzybowski ,  Cody Moore

IPC分类号： B25D9/16 ,  B25D9/12 ,  B25D9/18 ,  B25D9/20 ,  B25D9/26

摘要： A hydraulic hammer is provided. The hydraulic hammer includes a fluid inlet configured to receive a pressurized fluid for running the hydraulic hammer and a fluid outlet for discharging hydraulic fluid from the hydraulic hammer. A bypass passage fluidly connects the fluid inlet and the fluid outlet, the bypass passage has a bypass inlet fluidly connected to the fluid inlet and a bypass outlet fluidly connected to the fluid outlet. An automatic shut-off valve is disposed in the bypass passage between the bypass inlet and the bypass outlet and is configured to open or close the bypass passage. The automatic shut-off valve is configured to open the bypass passage under pressure of the pressurized fluid on continuous running of the hydraulic hammer for a set time to stop the hammer.

公开(公告)号：US09937611B2

公开(公告)日：2018-04-10

申请号：US14435209

申请日：2013-11-22

申请人： Atlas Copco Rock Drills AB

发明人： Erik Jakobsson ,  Thomas Johansson

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

CPC分类号： B25D9/20 ,  B25D9/12 ,  B25D9/18 ,  F15B13/02 ,  F16K27/041

摘要： 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

申请人： Caterpillar Inc.

发明人： Vaino Esko Juvonen ,  Cody Moore

IPC分类号： B25D9/26 ,  B25D9/14 ,  B25D9/18

CPC分类号： B25D9/26 ,  B25D9/145 ,  B25D9/18

摘要： 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

申请人： CATERPILLAR INC.

发明人： Cody Thomas Moore ,  Bart A. Fisher

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

CPC分类号： B25D9/18 ,  B25D9/12 ,  B25D9/16 ,  B25D2250/375 ,  F15B11/072

摘要： 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

申请人： Markku Keskiniva ,  Juha Piispanen ,  Mauri Esko

发明人： Markku Keskiniva ,  Juha Piispanen ,  Mauri Esko

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

CPC分类号： B25D9/18 ,  B25D9/22 ,  B25D17/245 ,  B25D2209/005 ,  B25D2217/0023

摘要： 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.

摘要翻译： 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：US20090321099A1

公开(公告)日：2009-12-31

申请号：US12309987

申请日：2007-09-12

申请人： Peter Birath

发明人： Peter Birath

IPC分类号： B25D9/16 ,  B25D9/18 ,  E21B1/26

CPC分类号： B25D9/26 ,  B25D9/16 ,  B25D2250/005 ,  E21B6/08 ,  E21B7/025 ,  E21B44/08 ,  Y10T137/86582 ,  Y10T137/8663

摘要： A percussive device including, inside a machine housing (3), a reciprocally moveable percussive piston (2), the movement of which being controllable through a control valve (5), which is arranged to alternatively connect a chamber to a pressure source and to low pressure in dependence of a signal describing the axial position of the percussive piston, wherein valve means (16) are arranged to allow adjustment of in which axial position of the percussive piston said signal is transmitted, through respectively opening and blocking of connection between one or a plural of said control channels (10,11,12,13) and the control valve. The invention also concerns a rock drilling machine and a method.

摘要翻译： 一种冲击装置，其包括在机器壳体（3）内的可往复运动的冲击活塞（2），所述冲击活塞的运动可通过控制阀（5）控制，所述控制阀被布置成交替地将腔室连接到压力源， 根据描述冲击活塞的轴向位置的信号的低压，其中阀装置（16）被布置成允许通过分别打开和阻止所述冲击活塞之间的连接来调节所述信号的冲击活塞的哪个轴向位置 或多个所述控制通道（10,11,12,13）和所述控制阀。 本发明还涉及一种凿岩机和一种方法。

公开(公告)号：US06938704B2

公开(公告)日：2005-09-06

申请号：US10467289

申请日：2002-03-11

申请人： Rudolf Berger ,  Mirko Lysek ,  Wolfgang Schmid

发明人： Rudolf Berger ,  Mirko Lysek ,  Wolfgang Schmid

IPC分类号： B25D11/12 ,  B23B45/16 ,  B25D9/18 ,  B25D11/00 ,  B25D17/00

CPC分类号： B25D11/005 ,  B25D2250/221

摘要： The invention relates to a pneumatic percussive tool for a paving breaker and/or a hammer drill comprising a drive piston which is displaceable both backwards and forwards by a crankshaft and arranged in a percussion piston which is displaceable both backwards and forwards. A hollow chamber is connected to a compensating chamber by an idling air channel and embodied between the drive piston and the percussion piston in order to receive a pneumatic spring. A valve is arranged in the idling air channel, the opening and closing position thereof depending on the rotational speed of the crankshaft. If the rotational speed of the crankshaft falls below a predetermined value, the valve opens the connection between the hollow chamber and the compensating chamber so that a pneumatic spring can no longer be to embodied in the hollow chamber and the pneumatic percussion tool is placed in a idling position.

摘要翻译： 本发明涉及一种用于铺路破碎机和/或锤钻的气动冲击工具，其包括驱动活塞，该驱动活塞可由曲轴向后和向后移动并且布置在能够向后和向后移动的冲击活塞中。 中空室通过怠速空气通道连接到补偿室，并且被实施在驱动活塞和冲击活塞之间以便接收气动弹簧。 阀在空转通道内设置，其开闭位置取决于曲轴的转速。 如果曲轴的转速低于预定值，则阀打开中空室和补偿室之间的连接，使得空气弹簧不再能够体现在中空室中，并且气动冲击工具被放置在 空转位置

公开(公告)号：US5971083A

公开(公告)日：1999-10-26

申请号：US115480

申请日：1998-07-15

申请人： Henry Wiklund

发明人： Henry Wiklund

IPC分类号： B25D9/02 ,  B25D9/14 ,  B25D9/18 ,  F15B15/22 ,  B25D9/00

CPC分类号： B25D9/14

摘要： Pressure fluid operated impact mechanism having a reciprocating working member (5), a stop member (17) and, formed between said members, a drive chamber (18) with seals (15, 16) and a regulating valve (21) co-operating with a supply opening (25) for pressure fluid, in which opening a sleeve (24) can be arranged for the journalling of the valve. The valve blocks the opening when the working member (5) and the stop member (17) have moved a distance away from each other and is open when they are close to each other. Through the valve and the working member, a discharge channel (33, 31, 20, 32) for pressure fluid is provided which is closed when its inlet opening (33) is inside the stop member and is freed when the working and stop members have moved a distance away from each other.

摘要翻译： 压力流体操作的冲击机构具有往复运动的工作构件（5），止动构件（17），并且形成在所述构件之间，具有密封件（15,16）和调节阀（21）的驱动室（18） 具有用于压力流体的供应开口（25），其中可以布置开口套筒（24）用于阀的支承。 当工作构件（5）和止动构件（17）彼此离开一定距离时，阀阻止开口，并且当它们彼此靠近时打开。 通过阀和工作构件，设有用于压力流体的排放通道（33,31,20,32），当其入口开口（33）位于止挡件内部时，其被封闭，当工作和止动件具有 离开了一段距离。

公开(公告)号：US4784228A

公开(公告)日：1988-11-15

申请号：US94697

申请日：1987-09-09

申请人： Ikuo Ito

发明人： Ikuo Ito

IPC分类号： B25D9/12 ,  B25D9/14 ,  B25D9/18 ,  B25D9/20 ,  E21B1/26

CPC分类号： B25D9/145 ,  B25D9/20 ,  B25D2209/002 ,  B25D2209/007

摘要： An impact device that consists of a housing having a bore, a piston, and a change-over valve for control of the reciprocal movement of the piston is presented in the present invention. In the present invention, it is not necessary to employ a long-size piston and a high piston speed is obtained and, further, a compact device in which the fluctruation of the pressure in the low pressure path is small can be obtained.

摘要翻译： 在本发明中提出了一种冲击装置，其包括具有孔，活塞和用于控制活塞的往复运动的转换阀的壳体。 在本发明中，不需要使用长尺寸活塞，并且可以获得高活塞速度，并且还可以获得其中低压路径中的压力波动小的紧凑装置。