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1.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：US5960893A
公开(公告)日：1999-10-05
申请号：US990465
申请日：1997-12-15
申请人： Heinz-Jurgen Prokop , Marcus Geimer
发明人： Heinz-Jurgen Prokop , Marcus Geimer
摘要： A fluid-powered percussion tool includes a percussion piston which, under the effect of a control alternately performs a working stroke and a return stroke with the aid of a control valve. The control valve assumes a working stroke or a return stroke position, depending on the position of the percussion piston. In the working stroke position, the percussion piston is admitted with working pressure such that it performs a working stroke counter to the effect of a continuous reset force. In contrast, the percussion piston is connected in the return stroke position to a discharge line so that it performs a return stroke under the effect of the reset force. The control valve is admitted during the working stroke with working pressure and is thereby held in the working stroke position. With the approach of the percussion piston to the point of impact, the connection to the pressure line under working pressure is interrupted and only a low pressure level is maintained in the region of control valve, under the effect of which the control valve is switched to the return stroke position and kept in this position during the return stroke.
摘要翻译： 流体动力冲击工具包括冲击活塞，该冲击活塞在控制的作用下，借助于控制阀交替执行工作行程和返回行程。 根据冲击活塞的位置，控制阀采取工作行程或返回行程位置。 在工作行程位置，冲击活塞被承受工作压力，使得它与执行连续复位力的作用相反地执行工作行程。 相比之下，冲击活塞在返回行程位置连接到排出管线，使得其在复位力的作用下执行返回冲程。 控制阀在工作行程中通过工作压力进入，从而保持在工作行程位置。 随着冲击活塞进入撞击点，在工作压力下与压力线的连接被中断，并且在控制阀的区域内仅保持低压水平，在该作用下控制阀切换到 返回行程位置，并在返回行程期间保持在此位置。
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公开(公告)号：US06959967B1
公开(公告)日：2005-11-01
申请号：US09238735
申请日：1999-01-28
申请人： Heinz-Jürgen Prokop , Marcus Geimer
发明人： Heinz-Jürgen Prokop , Marcus Geimer
CPC分类号： B25D9/26
摘要： A fluid-powered impact vibrator (5), in particular a hydraulic hammer, comprising a fluid-powered percussion hammer (8) with a percussion piston (18) that is moved back and forth under the effect of a control means (10) and comprising a guide unit (7) on which the percussion hammer is supported, wherein the impact vibrator is additionally provided with a control valve, designed as a pressure monitor, for adaptation to the supplied input power. The control valve preferably is a pressure shut-off valve or a pressure-limiting valve (25) that is connected to the input pressure line (3) provided with the operating pressure, and automatically stops the percussion hammer (8) if the operating pressure resulting from the input power exceeds a specified maximum value. To stop the percussion hammer (8), either the pressure line (3) is blocked or the control means (10) is held in one of its end positions, i.e., the operating stroke or the return stroke positions. Moreover, the pressure shut-off valve or the pressure-limiting valve (25) preferably is a component of the guide unit, consisting of a support frame (7), or the percussion hammer (8) itself.
摘要翻译： 一种流体动力冲击振动器（5），特别是液压锤，包括具有在控制装置（10）的作用下来回移动的冲击活塞（18）的流体动力冲击锤（8），以及 包括一个引导单元（7），冲击锤被支撑在该引导单元上，其中冲击振动器还附加设置有一个设计成压力监视器的控制阀，用于适应所提供的输入功率。 控制阀优选地是连接到设置有操作压力的输入压力管线（3）的压力切断阀或限压阀（25），并且如果操作压力自动停止打击锤（8） 由输入功率超过规定的最大值。 为了停止冲击锤（8），压力管路（3）被阻挡或控制装置（10）保持在其一个端部位置，即操作行程或返回冲程位置。 此外，压力切断阀或限压阀（25）优选地是由支撑框架（7）或冲击锤（8）本身构成的引导单元的部件。
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4.发明授权Method and device for determining the operating time and the operating condition of a hydraulic percussion unit 有权用于确定液压冲击单元的操作时间和操作条件的方法和装置公开(公告)号：US06510902B1
公开(公告)日：2003-01-28
申请号：US09573874
申请日：2000-05-19
IPC分类号： E21B1036
摘要： A method and a device for determining the operating time and the operating condition of a hydraulic percussion unit, in particular a hydraulic hammer, having a percussion piston which is guided inside a housing and, under the effect of a controller, alternately performs an operating stroke in an impact direction and a return stroke in a return direction. The method and device obtain information to determine whether the percussion unit requires maintenance operations. Signals are generated during the consecutive, individual operational segments of the percussion unit. The number of signals is proportional to the strokes performed by the percussion piston in one movement direction. The number of the signals is continuously added and is stored as a total number. The current total number of signals can be displayed at least at times for indicating the operating condition of the percussion unit.
摘要翻译： 一种用于确定液压冲击单元的操作时间和操作条件的方法和装置，特别是液压锤，其具有在壳体内被引导的冲击活塞，并且在控制器的作用下交替地执行操作冲程 在冲击方向和返回方向上的返回行程。 该方法和设备获取信息以确定敲击单元是否需要维护操作。 在打击乐单位的连续的单个操作段中产生信号。 信号的数量与冲击活塞在一个运动方向上执行的冲程成比例。 信号的数量被连续添加并存储为总数。 至少有时可显示当前信号总数，以指示打击乐器的操作状态。
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公开(公告)号：US06334495B2
公开(公告)日：2002-01-01
申请号：US09808940
申请日：2001-03-16
IPC分类号： B25D914
摘要： A fluid-operated percussion device (1) having a percussive piston (3), which alternately executes a work stroke and a return stroke due to the effect of a control. To avoid no-load strikes, in one embodiment of the percussion device (1), the percussive piston (3) is shut down if it has overshot the extended position occurring in normal operation (long- and/or short-stroke operation) by a predetermined distance in the work-stroke direction (arrow 3e) and reached a no-load-strike position. For this purpose, the interior (2d) of the work cylinder (2) that receives the percussive piston (3) additionally has a no load-strike opening (20a), which is connected to the pressure line (8) of the percussion device (1) with an interposed safety element (21) that can be switched between an inoperative position and an operative position.
摘要翻译： 具有冲击活塞（3）的流体操作冲击装置（1），其由于控制的效果而交替地执行工作冲程和返回冲程。 为了避免空载冲击，在冲击装置（1）的一个实施例中，如果冲击活塞（3）超过在正常操作（长时间和/或短行程操作）中发生的延伸位置，则关闭冲击活塞（3） 在工作行程方向（箭头3e）上的预定距离并达到无负载击打位置。 为此目的，接收冲击活塞（3）的工作缸（2）的内部（2d）还具有无冲击开口（20a），其连接到冲击装置的压力线（8） （1）具有可在非操作位置和操作位置之间切换的插入的安全元件（21）。
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