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公开(公告)号：US5873579A
公开(公告)日：1999-02-23
申请号：US895237
申请日：1997-07-16
CPC分类号： B25D17/00 , Y10T279/17042 , Y10T279/17094 , Y10T279/17102
摘要： A percussion tool includes a housing part having a frontal end provided with an opening; a tool bit guide supported in alignment with the opening; and a tool bit slidably supported in the tool bit guide and projecting from the housing part through the opening. The tool bit is arranged for a reciprocating motion parallel to the longitudinal tool bit axis and transverse excursions substantially perpendicular to the tool bit axis. A transverse guide is attached to the housing part and displaceably receives an outer seal composed of a transverse slide. The transverse slide has an aperture through which the tool bit passes. The transverse slide and the tool bit are arranged such that the transverse slide and the tool bit move as a unit during the transverse excursions of the tool bit. There is further provided an inner seal disposed in the housing part between the transverse slide and the tool bit guide externally thereof. The inner seal surrounds the tool bit and is in a resilient contacting relationship therewith.
摘要翻译： 冲击工具包括具有前端设置有开口的壳体部分; 支撑与开口对齐的工具钻头引导件; 以及工具钻头，其可滑动地支撑在所述工具钻头引导件中并从所述壳体部件穿过所述开口突出。 工具钻头布置成平行于纵向工具钻头轴线的往复运动和基本上垂直于工具钻头轴线的横向偏移。 横向引导件附接到壳体部分并且可移动地接收由横向滑动件构成的外部密封件。 横向滑块具有工具钻头穿过的孔。 横向滑块和工具钻头被布置成使得横向滑块和工具钻头在工具钻头的横向偏移期间作为一个单元移动。 另外还设置有内部密封件，该内部密封件设置在外部部件之间的横向滑动件和其外部的工具钻头引导件之间。 内密封件围绕工具头并且与其具有弹性接触关系。
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2.发明授权
公开(公告)号：US5860481A
公开(公告)日：1999-01-19
申请号：US921113
申请日：1997-08-29
CPC分类号： B25D9/14
摘要： A fluid-operated striker assembly includes a working cylinder and a striker piston slidably received in the working cylinder for executing working (forward) and return strokes. The striker piston delivers a blow to a tool bit during the working stroke when the striker piston is either in a limit position or in an advanced position which is beyond the limit position in the direction of the working stroke. A control arrangement applies an alternating fluid pressure to the striker piston to execute the working and return strokes. Further, a precontrol arrangement is provided for affecting the control arrangement dependent on whether the striker piston has exceeded its limit position. The precontrol arrangement causes the control arrangement to operate the striker piston with a normal working stroke as long as the striker piston delivers a blow to the tool bit in the limit position, and causes the control arrangement to operate the striker piston with a short working stroke--whose length is less than that of the normal working stroke--as long as the striker piston delivers a blow to the tool bit in the advanced position.
摘要翻译： 流体操作的撞击器组件包括工作缸和可滑动地容纳在工作缸中用于执行工作（向前）和返回冲程的撞击活塞。 当冲击器活塞处于极限位置或处于超出工作冲程方向上的极限位置的前进位置时，冲击活塞在工作冲程期间对工具头施加打击。 控制装置向冲击器活塞施加交替的流体压力以执行工作和返回冲程。 此外，提供预控制装置用于根据撞针活塞是否超过其极限位置来影响控制装置。 预控制装置使得控制装置能够在正常工作行程下操作冲击器活塞，只要撞击活塞将工具钻头吹到极限位置，并使控制装置以较短的工作行程操作冲击活塞 - 长度小于正常工作行程的长度 - 只要撞击活塞向前进位置的工具头施加打击。
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公开(公告)号：US20080296035A1
公开(公告)日：2008-12-04
申请号：US11658071
申请日：2005-07-02
申请人： Stefan Lohmann , Karlheinz Fritz , Reiner Kock , Markus Mellwig , Hendrik Moller , Uwe Autschbach
发明人： Stefan Lohmann , Karlheinz Fritz , Reiner Kock , Markus Mellwig , Hendrik Moller , Uwe Autschbach
CPC分类号： B25D9/265
摘要： The invention relates to a striking device (5) comprising a striking mechanism (8) which is driven by a pressure medium. Said device comprises a percussion piston (13) which can be displaced back and forth by means of a control device and a control valve which is embodied as a pressure shut-off valve (19) or as a stop valve, said control valve automatically stopping the striking mechanism if it exceeds a predetermined maximum value based on the working pressure controlling the inlet line, blocking the pressure line (3) or maintaining the control device in one of the end positions thereof. The inventive striking device also comprises a hydraulic catcher buffer which is used to brake the percussion piston when it exceeds a predetermined impact plane. According to the invention, the control valve must remain deactivated at least as long as the percussion piston is displaced on the hydraulic catcher buffer.
摘要翻译： 本发明涉及一种打击装置（5），其包括由压力介质驱动的打击机构（8）。 所述装置包括冲击活塞（13），该冲击活塞可通过控制装置和控制阀来回移动，所述控制装置和控制阀被实施为压力截止阀（19）或作为截止阀，所述控制阀自动停止 所述打击机构如果其基于控制所述入口管线的工作压力超过预定最大值，则阻止所述压力管线（3）或将所述控制装置保持在其一个端部位置。 本发明的打击装置还包括液压抓取器缓冲器，其用于在撞击活塞超过预定冲击平面时制动冲击活塞。 根据本发明，控制阀必须至少等于冲击活塞在液压捕集器缓冲器上移动时保持停用。
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4.发明授权公开(公告)号：US07779930B2
公开(公告)日：2010-08-24
申请号：US11658071
申请日：2005-07-02
申请人： Stefan Lohmann , Karlheinz Fritz , Reiner Koch , Markus Mellwig , Hendrik Moller , Uwe Autschbach
发明人： Stefan Lohmann , Karlheinz Fritz , Reiner Koch , Markus Mellwig , Hendrik Moller , Uwe Autschbach
IPC分类号： B23Q5/26
CPC分类号： B25D9/265
摘要： The invention relates to a striking device (5) comprising a striking mechanism (8) which is driven by a pressure medium. Said device comprises a percussion piston (13) which can be displaced back and forth by means of a control device and a control valve which is embodied as a pressure shut-off valve (19) or as a stop valve, said control valve automatically stopping the striking mechanism if it exceeds a predetermined maximum value based on the working pressure controlling the inlet line, blocking the pressure line (3) or maintaining the control device in one of the and positions thereof. The inventive striking device also comprises a hydraulic catcher buffer which is used to brake the percussion piston when it exceeds a predetermined impact plane. According to the invention, the control valve must remain deactivated at least as long as the percussion piston is displaced on the hydraulic catcher buffer.
摘要翻译： 本发明涉及一种打击装置（5），其包括由压力介质驱动的打击机构（8）。 所述装置包括冲击活塞（13），该冲击活塞可通过控制装置和控制阀来回移动，所述控制装置和控制阀被实施为压力截止阀（19）或作为截止阀，所述控制阀自动停止 所述打击机构如果其基于控制所述入口管线的工作压力超过预定最大值，则阻止所述压力管线（3）或将所述控制装置保持在其位置之一。 本发明的打击装置还包括液压抓取器缓冲器，其用于在撞击活塞超过预定冲击平面时制动冲击活塞。 根据本发明，控制阀必须至少等于冲击活塞在液压捕集器缓冲器上移动时保持停用。
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公开(公告)号：US4646854A
公开(公告)日：1987-03-03
申请号：US801966
申请日：1985-11-26
CPC分类号： B25D9/145
摘要： A hydraulic striking device (1) includes a percussion piston (3) which reciprocates in an operating cylinder (2) and strikes a bit (4). The reciprocation is governed by a control valve (10) which is connected to the operating cylinder by a control conduit (27). A holding valve (30) in the control conduit has three connections (27a, 27b, 31): one with the control valve, one with the operating cylinder, and one with the return conduit (17). The connections (27a, 31) which are connected with the operating cylinder and with the control conduit are axially aligned and form the outlets of a hollow cavity (53) in which a preferably spherical movable valve body (54) is disposed, the cross-sectional area of the valve body being smaller than that of the cavity. The connection (27b) with the control valve opens radially into the cavity. If the valve body rests against the valve seat (55) which faces the return conduit, the axis of the connection (27b) passes through that half of the valve body which faces this valve seat. When the striking device operates, energy that is reflected from the bit to the percussion piston can be utilized for the following stroke and thus the total performance of the striking device is increased.
摘要翻译： 液压打击装置（1）包括在操作缸（2）中往复运动并撞击钻头（4）的冲击活塞（3）。 往复运动由控制阀（10）控制，控制阀（10）通过控制管道（27）连接到操作缸。 控制管道中的保持阀（30）具有三个连接（27a，27b，31）：一个具有控制阀，一个具有操作缸，一个具有回流管道（17）。 与操作气缸和控制导管连接的连接件（27a，31）轴向对齐并形成中空腔（53）的出口，其中设置有优选球形的可移动阀体（54） 阀体的截面积小于空腔的截面面积。 与控制阀的连接（27b）径向地打开到空腔中。 如果阀体靠在面向回流导管的阀座（55）上，则连接件（27b）的轴线穿过面对该阀座的阀体的一半。 当打击装置工作时，从钻头反射到冲击活塞的能量可以用于随后的冲程，因此提高了打击装置的总体性能。
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