公开(公告)号：US09701003B2

公开(公告)日：2017-07-11

申请号：US14285780

申请日：2014-05-23

申请人： Caterpillar Inc.

发明人： Cody Moore

IPC分类号： B25D9/12 ,  B25D9/26 ,  B25D9/14 ,  E02F3/96 ,  B25D9/18 ,  E02F9/22 ,  B25D9/16 ,  F15B13/02 ,  F15B11/042

CPC分类号： B25D9/265 ,  B25D9/12 ,  B25D9/145 ,  B25D9/16 ,  B25D9/18 ,  E02F3/966 ,  E02F9/2267 ,  F15B11/042 ,  F15B13/024

摘要： An automatic shutoff system for a hydraulic hammer is disclosed. The automatic shutoff 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 a piston associated with the hydraulic hammer and configured to discharge the pressurized fluid. The automatic shutoff system may also include an annular passage configured to allow the pressurized fluid to flow between the inlet and outlet grooves. The automatic shutoff system may further include a valve disposed upstream of the inlet groove and configured to selectively block the pressurized fluid from flowing into the inlet groove based on an operational state of the hydraulic hammer.

公开(公告)号：US20170156973A1

公开(公告)日：2017-06-08

申请号：US15262342

申请日：2016-09-12

申请人： EMPI, Inc.

发明人： Lotta Hart

IPC分类号： A61H23/00 ,  G10K15/04 ,  B25D9/16 ,  B25D9/26 ,  A61H23/04 ,  B25D9/08

CPC分类号： A61H23/008 ,  A61H1/008 ,  A61H23/04 ,  A61H2023/002 ,  A61N7/00 ,  A61N2007/0004 ,  B25D9/08 ,  B25D9/16 ,  B25D9/26 ,  G06F19/3481 ,  G10K15/043

摘要： A processor-controlled, energy-based therapy apparatus includes a device configured to provide therapeutic energy to a patient and a processor that controls the output of the device. The output of the device is based on output profiles programmed into the processor. The output profiles include a therapeutic energy output profile and a ramp-up energy profile. The therapeutic energy output profile includes a desired target energy level and a therapeutic duration for controlling the output of the device during a therapeutic period. The ramp-up energy output profile includes an initial treatment energy level and a ramp-up duration for controlling the output of the device during a ramp-up period. The energy output specified by the ramp-up energy output profile incrementally increases over the ramp-up duration as a function of the desired target energy level and the ramp-up duration.

公开(公告)号：US20160297058A1

公开(公告)日：2016-10-13

申请号：US15033786

申请日：2014-10-24

申请人： CONSTRUCTION TOOLS PC AB

发明人： Thomas LILJA ,  Olof ÖSTENSSON

IPC分类号： B25D9/16 ,  B25D16/00

CPC分类号： B25D9/16 ,  B25D9/14 ,  B25D16/00 ,  B25D2250/181 ,  B25D2250/245

摘要： A pneumatic hammer including a connector for connection to an external compressed air source and a striking mechanism. The striking mechanism includes a housing and a piston arranged for reciprocating motion in the housing. The striking piston has front and rear piston portions. The piston and the housing form front and rear spaces. A compressed air conduit is arranged in airflow communication with the front space via a second passage in the housing, at which second passage a first valve is arranged. There is an intermediate space between the front and rear piston portions and the housing. The control unit is alternately subjected to air pressure of the rear space with respect to the intermediate space during reciprocating motion of the piston. The control unit controls the first valve based on air pressure to alternately supply compressed air to the front space and achieving a return movement of the piston.

摘要翻译： 一种气动锤，包括用于连接到外部压缩空气源的连接器和打击机构。 撞击机构包括壳体和设置成在壳体中往复运动的活塞。 打击活塞具有前活塞部分和后活塞部分。 活塞和外壳形成前后空间。 压缩空气管道经由壳体中的第二通道与前部空间气流连通地布置，第二通道设置有第一阀门。 前活塞部分和后活塞部分之间存在中间空间。 控制单元在活塞的往复运动期间相对于中间空间交替地受到后部空间的空气压力。 控制单元基于空气压力控制第一阀，以交替地向前部空间供应压缩空气并实现活塞的返回运动。

公开(公告)号：US20120160528A1

公开(公告)日：2012-06-28

申请号：US13298717

申请日：2011-11-17

申请人： Francis Theobalds

发明人： Francis Theobalds

IPC分类号： B25D9/16 ,  F16K31/12 ,  B25D9/14

CPC分类号： E02F3/966 ,  B25D9/12 ,  B25D9/16 ,  B25D9/265 ,  E02F9/2267 ,  F15B13/024

摘要： A pressure protection valve is provided which provides a fluid short circuit between a fluid pressure inlet of a hydraulic tool such as a hydraulic hammer and a low pressure region when the pressure at the fluid pressure inlet exceeds a first trigger pressure equal to a predetermined permissible pressure. This prevents damage to the hydraulic tool which can arise through operation at excessive fluid flow or pressure from hydraulic fluid supplied by a carrier vehicle. The pressure protection valve may maintain fluid communication between the fluid pressure inlet and the low pressure region until the pressure at the fluid pressure inlet reduces to a pressure below a predetermined second trigger pressure which is less than the first trigger pressure, to prevent further operation of the tool until the flow of fluid to the fluid pressure inlet has been stopped by an operator.

摘要翻译： 提供一种压力保护阀，当压力入口处的压力超过等于预定允许压力的第一触发压力时，提供在诸如液压锤的液压工具的流体压力入口与低压区域之间的流体短路 。 这防止了液压工具的损坏，该液压工具可以通过在由载体车辆供应的液压流体的过度流体流动或压力下操作而产生。 压力保护阀可以保持流体压力入口和低压区域之间的流体连通，直到流体压力入口处的压力降低到小于第一触发压力的预定的第二触发器压力的压力，以防止进一步的操作 直到流体流入流体压力入口的流动已经被操作者停止。

公开(公告)号：US07762347B2

公开(公告)日：2010-07-27

申请号：US12188729

申请日：2008-08-08

申请人： Donald J. Glaser ,  Lon C. Tidwell

发明人： Donald J. Glaser ,  Lon C. Tidwell

IPC分类号： B25D9/14

CPC分类号： B25D9/16 ,  B25D9/26 ,  B25D2216/0015 ,  B25D2250/121 ,  B25D2250/181 ,  B25D2250/201 ,  B44B5/00

摘要： An improved impact power tool for carving and engraving an article comprises an air delivery system operable to communicate with a pressurized air source; a drive assembly operable to receive air from the pressurized air source via the air delivery system; a hand held device in driven communication with the drive assembly; and a housing for storage of the air delivery system and drive assembly. The tool includes an improved valve design, a throttle bias valve, and an air storage tank housed within the housing, and an improved housing construction. The improved valve design and air storage tank enable greater stroke speeds of a work tool over a wider power range while also improving the crispness and speed of the impact reaction time over the entire range. The throttle bias valve is in communication with an additional exhaust path, such that the bias valve allows improved control of the hand held device and improved operation over a wider range of air pressures.

摘要翻译： 用于雕刻和雕刻物品的改进的冲击动力工具包括可操作以与加压空气源连通的空气输送系统; 驱动组件，可操作以经由空气输送系统从加压空气源接收空气; 与驱动组件驱动连通的手持装置; 以及用于存储空气输送系统和驱动组件的壳体。 该工具包括改进的阀设计，节气门偏压阀和容纳在壳体内的储气罐，以及改进的壳体结构。 改进的阀门设计和储气罐能够在更宽的功率范围内提高作业工具的冲程速度，同时还可提高整个范围内冲击反应时间的脆性和速度。 节气门偏压阀与另外的排气通道连通，使得偏压阀允许改进手持式装置的控制并且在更宽的空气压力范围内改善操作。

公开(公告)号：US20080185550A1

公开(公告)日：2008-08-07

申请号：US12024603

申请日：2008-02-01

申请人： Andrew Hall

发明人： Andrew Hall

IPC分类号： F16K1/38

CPC分类号： F16K11/056 ,  B25D9/16 ,  F16K7/20

摘要： A ball valve assembly for use as a control valve for controlling the flow of gas through a continuous stroke pneumatic tool. The valving element is generally spherical and non-magnetizable. The generally spherical valving element is loosely confined between two concave generally conical surfaces, which are provided on valve seat members. The concave generally conical surfaces are opposed to one another to define a valve chamber therebetween. Sufficient clearance is provided so the generally spherical valving element is free to roll and tumble as it moves in the valve chamber between the concave generally conical surfaces. This allows the ball valve assembly to be self purging of excess lubricant, dust, and the like. Wear is distributed over the entire generally spherical surface of the valving element. The loose confinement is also sufficient to provide a relatively large cross-section of gas passageway through the control valve assembly. The two valve seat members are suitably ported to permit the ball valve assembly to be used as a drop-in replacement for prior pneumatic tool control valves.

摘要翻译： 一种用作控制阀的球阀组件，用于通过连续行程气动工具控制气体的流动。 阀元件通常是球形和不可磁化的。 大致球形的阀元件松散地限制在设置在阀座构件上的两个凹入的大致圆锥形表面之间。 凹入的大致圆锥形表面彼此相对以在其间限定阀室。 提供足够的间隙，使得大致球形的阀元件在其在凹入的大致圆锥形表面之间在阀室中移动时自由地滚动和滚动。 这允许球阀组件自动清除多余的润滑剂，灰尘等。 磨损分布在阀元件的整个大致球形的表面上。 松动约束也足以提供通过控制阀组件的相当大的气体通道横截面。 两个阀座构件被适当地插入以允许球阀组件用作现有气动工具控制阀的替换。

公开(公告)号：US07252158B2

公开(公告)日：2007-08-07

申请号：US11276889

申请日：2006-03-17

申请人： Paul Kirsch

发明人： Paul Kirsch

IPC分类号： B25D9/02

CPC分类号： B22D31/00 ,  B25D9/08 ,  B25D9/16 ,  B25D9/20 ,  B25D17/245

摘要： A pneumatic tool (20) for impacting a workpiece (22) is provided. The tool (20) comprises a casing (42) defining a chamber (48). A piston (54) is slidable within the chamber (48) along an operational axis (A). An exhaust valve (100) controlled by a pilot valve (200) slides the piston (54) by selectively introducing and releasing pressurized fluid into and out from the chamber (48). The pilot valve (200) includes a valve housing (202) defining a pilot chamber (204) with a plunger (206) slidable in the pilot chamber (204). The pilot valve (200) actuates the tool (20) by quickly releasing pressurized fluid from the exhaust valve (100) to atmosphere. The pilot valve (200) includes a spring-biased annular seal (214) that is releasable from a poppet seat (222) to perform this function.

摘要翻译： 提供了用于冲击工件（22）的气动工具（20）。 工具（20）包括限定腔室（48）的壳体（42）。 活塞（54）可沿着操作轴线（A）在腔室（48）内滑动。 由先导阀（200）控制的排气阀（100）通过选择性地将加压流体引入和释放进入腔室（48）而使活塞（54）滑动。 先导阀（200）包括限定具有可在先导室（204）中滑动的柱塞（206）的先导室（204）的阀壳体（202）。 先导阀（200）通过将加压流体从排气阀（100）快速释放到大气中来致动工具（20）。 先导阀（200）包括弹簧偏置的环形密封件（214），其可从提升阀座（222）释放以执行该功能。

公开(公告)号：US6152013A

公开(公告)日：2000-11-28

申请号：US194946

申请日：1998-12-07

申请人： Shigeru Shinohara ,  Mitsuru Arai ,  Takayuki Muto ,  Naoki Ishizaki

发明人： Shigeru Shinohara ,  Mitsuru Arai ,  Takayuki Muto ,  Naoki Ishizaki

IPC分类号： B25D9/16 ,  B25D17/10 ,  F01L25/02 ,  F01B7/18

CPC分类号： B25D9/16

摘要： A hydraulically actuated breaker with a lost-motion preventing device includes a cylinder portion (26) defining a first chamber (23) constantly communicated with a hydraulic pressure source (47) and having a small pressure receiving area for upwardly moving a piston (22) and a second chamber (24) having a large pressure receiving area for downwardly moving the piston, by inserting the piston into a piston bore (21) of a breaker main body (20); a chisel (28) inserted within a chisel insertion hole (27) of the breaker main body in opposition to the piston; a main switching valve (40) being switched between a first position (E) communicating the second chamber with a tank (48) and a second position (F) communicating the second chamber with the hydraulic pressure source; and a valve mechanism (30) placing the main switching valve at the first position when the piston is in an effective lower stroke end position, placing the main switching valve at the second position when the piston is in an effective upper stroke end position, and maintaining the main switching valve at the second position when the piston is lowered beyond the effective lower stroke end position.

摘要翻译： PCT No.PCT / JP97 / 02577 Sec。 371 1998年12月7日第 102（e）日期1998年12月7日PCT 1997年7月24日PCT公布。 公开号WO98 / 04387 日本1998年2月5日具有防漏运动装置的液压致动断路器包括限定与液压源（47）恒定连通的第一腔室（23）的气缸部分（26），并且具有小的压力接收区域用于向上移动 通过将活塞插入到断路器主体（20）的活塞孔（21）中，具有用于向下移动活塞的大的压力接收区域的活塞（22）和第二室（24）。 插入在与所述活塞相对的所述断路器本体的凿子插入孔（27）内的凿子（28） 主切换阀（40）在连通第二腔室的第一位置（E）与罐（48）之间切换，以及将第二腔室与液压源连通的第二位置（F）; 以及阀机构（30），当所述活塞处于有效的下行程末端位置时，将所述主切换阀置于所述第一位置，当所述活塞处于有效的上冲程终点位置时，将所述主切换阀置于所述第二位置，以及 当活塞下降超过有效下冲程终点位置时，将主切换阀保持在第二位置。

公开(公告)号：US4483402A

公开(公告)日：1984-11-20

申请号：US326239

申请日：1981-12-01

申请人： William Vonhoff, Jr.

发明人： William Vonhoff, Jr.

IPC分类号： B25D9/08 ,  B25D9/16 ,  B25D17/00

CPC分类号： B25D17/00 ,  B25D9/08 ,  B25D9/16

摘要： A paving breaker for the construction industry of the type having a vibrating moil point or tool steel impacted by a pneumatically reciprocated piston including a double walled cylinder slidably receiving the piston designed so that the space between the inner and outer walls of the cylinder forms a passageway for delivery of piston return air to the lower cylinder chamber and the space also forms an accumulator for air compressed by the piston during the lower part of its power stroke. In one embodiment an outer cylinder sleeve is mounted on an elastomeric member surrounding an inner cylinder sleeve, and is free to reciprocate a limited distance in the housing to partly balance the reaction forces of the piston. This double walled cylinder is surrounded by rectangular polyurethane covers that form an air exhaust space around the cylinder so that exhaust air assists in cooling the cylinder. Air is ported to the opposite ends of the cylinder by a self guiding valve member that has easily machined expansion grooves on opposite sides of a metering land and an annular guide stem that is slidably mounted in a bore in a lower valve block member mounted at the top or backhead of the paving breaker adjacent the cylinder, and this valve guide stem forms a conduit for air to the rear side of the piston.

摘要翻译： 一种用于建筑行业的铺路破碎机，其具有由气动往复活塞冲击的振动的马氏点或工具钢，该双层壁圆柱体可滑动地容纳活塞，双壁圆柱体被设计成使得气缸的内壁和外壁之间的空间形成通道 用于将活塞返回空气输送到下部气缸室，并且该空间还形成用于在其动力冲程的下部期间由活塞压缩的空气的蓄能器。 在一个实施例中，外筒套筒安装在围绕内筒套筒的弹性体构件上，并且可自由地在壳体中往复运动有限距离以部分平衡活塞的反作用力。 该双壁圆筒由矩形聚氨酯盖围绕，形成围绕气缸的排气空间，从而排气有助于冷却气缸。 空气通过在计量区域的相对侧上容易加工的膨胀槽的自引导阀构件移动到气缸的相对端部，以及环形引导杆，其可滑动地安装在安装在该壳体上的下阀块构件的孔中 铺路破碎机与缸体相邻的顶部或后端，并且该阀导向杆形成用于空气到活塞后侧的导管。

公开(公告)号：US4303002A

公开(公告)日：1981-12-01

申请号：US103513

申请日：1979-12-12

申请人： Petr A. Maslakov ,  Nikolai A. Klushin ,  Leonid A. Juriev ,  Vladimir I. Kokarev ,  Viktor E. Kilin ,  Anas G. Galimov ,  Oleg Y. Sutyagin ,  Oleg A. Yankovsky

发明人： Petr A. Maslakov ,  Nikolai A. Klushin ,  Leonid A. Juriev ,  Vladimir I. Kokarev ,  Viktor E. Kilin ,  Anas G. Galimov ,  Oleg Y. Sutyagin ,  Oleg A. Yankovsky

IPC分类号： B25D9/08 ,  B25D9/16 ,  F01L21/04 ,  F01L25/06 ,  F01L25/04 ,  F01L21/02

CPC分类号： B25D9/08 ,  B25D17/06 ,  B25D9/16 ,  F01L21/04 ,  F01L25/066 ,  B25D2217/0023

摘要： A hand-operated pneumatic impact machine comprising a hollow body with an axially-reciprocating impact ram inside which forms, together with the body, variable-volume working chambers. It also comprises a distributing space communicating with the working chambers and with a source of compressed air. There also is a valve in the form of a cylindrical bushing whose inner surface covers at least one hole which admits compressed air into the distributing space, the compressed air forcing the valve to cover alternately the inlet channels of the working chambers for reciprocating the impact ram. The valve has at least one longitudinal channel which is in constant communication with the source of compressed air through a hole which connects the distributing space with the source of compressed air, the channel being intended to deliver compressed air to the inlet channels of the working chambers.

摘要翻译： 一种手动气动冲击机，其包括具有轴向往复冲击压头的中空体，所述中空体与主体一起形成可变容积的工作室。 它还包括与工作室和压缩空气源连通的分配空间。 还有一种圆柱形衬套形式的阀门，其内表面覆盖至少一个允许压缩空气进入分配空间的孔，压缩空气迫使阀门交替地覆盖工作室的入口通道，使撞击柱塞往复运动 。 阀具有至少一个纵向通道，该纵向通道通过将分配空间与压缩空气源连接的孔与压缩空气源恒定连通，该通道旨在将压缩空气输送到工作室的入口通道 。