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公开(公告)号：US12005555B2
公开(公告)日：2024-06-11
申请号：US17195855
申请日：2021-03-09
发明人： Julia C. Marsh , Kyle Greunke , Kevin A. McLachlan
CPC分类号： B25D11/066 , B25D11/04 , B25D2211/003 , B25D2211/006 , B25D2216/0069 , B25D2250/321 , B25D2250/365 , B25D2250/371
摘要： A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, a striker received within the spindle for reciprocation in response to reciprocation of the piston, and an anvil received within the spindle and positioned between the striker and the tool bit. The anvil is configured to impart axial impacts to the tool bit in response to reciprocation of the striker. The rotary hammer also includes a retainer received within the spindle for selectively securing the striker in an idle position in which it is inhibited from reciprocating within the spindle. The retainer includes a detent member configured to engage the striker to secure the striker in the idle position, and a tensing element configured to bias the detent member radially inward toward engagement with the striker.
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公开(公告)号：US20230150103A1
公开(公告)日：2023-05-18
申请号：US17916928
申请日：2021-04-07
发明人： Ernst-Rudolf LÜBKERT , Uto PLANK , Jochen ERHARDT
CPC分类号： B25D11/12 , B25D17/26 , B25D2217/0065 , B25D2250/121 , B25D2250/345 , B25D2250/365
摘要： An electropneumatic impact mechanism for an electric hand-held power tool, in particular a hammer drill and/or chipping hammer, wherein the impact mechanism has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is designed as an externally toothed gearwheel and is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing about an axis of rotation on the other side, an axial gap, preferably for optionally receiving at least part of a lubrication space separating element, is provided between an eccentric wheel surface facing the connecting rod and a connecting rod surface facing the eccentric wheel.
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公开(公告)号：US10016885B2
公开(公告)日：2018-07-10
申请号：US14772722
申请日：2014-02-17
发明人： Takahiro Ookubo
CPC分类号： B25D16/00 , B25D11/12 , B25D17/20 , B25D17/26 , B25D2217/0096 , B25D2250/131 , B25D2250/231 , B25D2250/365
摘要： An impact tool which transmits an impact force to a tool bit supported by a casing includes: a cylinder which is attached to the casing and has an opening on one end side thereof to which the tool bit is inserted; an intermediate element which is provided in an inside of the cylinder so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit; and passages and which communicate a space in an inside of the cylinder at a position nearer to the tool bit than the projection with the outside of the cylinder and penetrate through the cylinder in the radial direction.
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公开(公告)号：US20180147708A1
公开(公告)日：2018-05-31
申请号：US15363941
申请日：2016-11-29
申请人： Caterpillar Inc.
发明人： Joshua Grzybowski , Cody Moore
CPC分类号： B25D9/04 , B25D17/00 , B25D2250/121 , B25D2250/365
摘要： A method of retaining and removing a valve locking body from a powered hammer assembly comprises inserting a locking member into a radially extending aperture of a cylinder, inserting a spring until the spring contacts the locking member; and inserting a keeper radially inwardly of the spring and the locking member and attaching the keeper to the cylinder.
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公开(公告)号：US09593804B2
公开(公告)日：2017-03-14
申请号：US14523769
申请日：2014-10-24
申请人： CATERPILLAR INC.
CPC分类号： F16N21/06 , B25D17/26 , B25D2250/125 , B25D2250/351 , B25D2250/365
摘要： A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The plug head may include a first hole and a second hole opposite the first hole, each hole extending from the outer surface of the plug head. The anti-rotation component may include a first linear portion and a second linear portion. The first linear portion and second linear portion may both be configured to fixably engage with the hammer assembly.
摘要翻译： 插头组件，其构造成安装在锤组件中，所述插头组件包括圆柱塞和防旋转部件。 圆柱塞可以包括塞头和塞体。 塞头可以包括第一孔和与第一孔相对的第二孔，每个孔从插塞头的外表面延伸。 防旋转部件可以包括第一直线部分和第二直线部分。 第一直线部分和第二直线部分都可以构造成可与锤组件固定接合。
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公开(公告)号：US09555531B2
公开(公告)日：2017-01-31
申请号：US13837969
申请日：2013-03-15
申请人： CATERPILLAR INC.
发明人： Cody Moore
CPC分类号： B25D9/145 , B25D9/18 , B25D9/20 , B25D2209/005 , B25D2250/225 , B25D2250/231 , B25D2250/245 , B25D2250/365
摘要： A hydraulic hammer is disclosed having a piston and an accumulator membrane disposed external and co-axial to the piston. Additionally, a sleeve is disposed between the piston and accumulator membrane, wherein the sleeve has a plurality of radial passages formed therein that fluidly connect the accumulator membrane with the piston.
摘要翻译： 公开了一种液压锤，其具有设置在活塞外部并且同轴的活塞和蓄能器膜。 此外，套筒设置在活塞和蓄能器膜之间，其中套管具有形成在其中的多个径向通道，其将蓄能器膜与活塞流体连接。
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公开(公告)号：US20160151904A1
公开(公告)日：2016-06-02
申请号：US14772722
申请日：2014-02-17
发明人： Takahiro OOKUBO
CPC分类号： B25D16/00 , B25D11/12 , B25D17/20 , B25D17/26 , B25D2217/0096 , B25D2250/131 , B25D2250/231 , B25D2250/365
摘要： An impact tool capable of preventing an impact force from being applied to an intermediate element in a state where the intermediate element and a tool bit are apart from each other is provided. An impact tool which transmits an impact force to a tool bit supported by a casing includes: a cylinder which is attached to the casing and has an opening on one end side thereof to which the tool bit is inserted; an intermediate element which is provided in an inside of the cylinder so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit; and passages and which communicate a space in an inside of the cylinder at a position nearer to the tool bit than the projection with the outside of the cylinder and penetrate through the cylinder in the radial direction.
摘要翻译： 提供一种能够防止在中间元件和工具头彼此分离的状态下将冲击力施加到中间元件的冲击工具。 将撞击力传递到由壳体支撑的工具钻头的冲击工具包括：缸体，其附接到壳体并且在其一端侧具有插入工具钻头的开口; 设置在气缸内部以能够直线移动的中间元件具有沿径向突出的突出部，以便调节直线运动的范围，并将冲击力传递到工具头; 以及通道，其在比圆柱体的突起更靠近工具钻头的位置处在气缸的内部中传送空间，并且在径向方向上穿过气缸。
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公开(公告)号：US20150014011A1
公开(公告)日：2015-01-15
申请号：US14318073
申请日：2014-06-27
申请人： Black & Decker Inc.
发明人： Ernst Staas , Stefan Gensmann , Achim Buchholz
CPC分类号： B25F5/02 , B25D16/00 , B25D17/00 , B25D2222/24 , B25D2222/61 , B25D2250/065 , B25D2250/121 , B25D2250/245 , B25D2250/331 , B25D2250/335 , B25D2250/365 , F16J15/50
摘要： A power tool comprises a housing having at least two housing parts and at least one recess, a portion of the recess provided by each housing part, and a bearing located in the recess. The power tool includes a seal comprising an elongate seal member located between the housing parts to seal at least a portion of the housing. The seal includes at least one polymeric extension part extending from the elongate seal member and in contact with an external part of the bearing without extending around the bearing. The polymeric extension part of the seal prevents the external part of the bearing from rotating with respect to the housing during use of the power tool.
摘要翻译： 电动工具包括具有至少两个壳体部分和至少一个凹部的壳体，由每个壳体部分提供的凹部的一部分和位于凹部中的轴承。 电动工具包括密封件，其包括位于壳体部件之间的细长密封件，以密封壳体的至少一部分。 密封件包括至少一个从细长密封构件延伸并且与轴承的外部部分接触而不在轴承周围延伸的聚合物延伸部分。 在使用电动工具期间，密封件的聚合物延伸部分防止轴承的外部相对于壳体旋转。
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公开(公告)号：US20130000939A1
公开(公告)日：2013-01-03
申请号：US13261412
申请日：2011-03-22
申请人： Per Jonsson
发明人： Per Jonsson
CPC分类号： B25D9/12 , B25D17/06 , B25D2217/0019 , B25D2250/365
摘要： The present invention relates to a hydraulic percussive arrangement comprising a displaceable arrangement (1) in a casing (11), in which casing (11) the following are arranged at the displaceable arrangement (1): a first chamber (5) connected to a return line (7) for hydraulic oil, a bushing (6) on a first side of the first chamber (5) and separated from the first chamber (5) by a first gap (12) along the displaceable arrangement (1), and a second chamber (2) with a higher pressure of hydraulic oil than that of the first chamber (5) and arranged on a second side of the first chamber (5), separated from the first chamber (5) by a second gap (4) along the displaceable arrangement (1). According to the invention, a third chamber (8) is fixed arranged between the second gap (4) and the first chamber (5) and the third chamber (8) is connected to the first chamber (5) not only by a first passage (14) but also by a third gap (9) along the displaceable arrangement (1). The invention relates also to a piston guide in such a hydraulic percussive arrangement and to a drilling rig with such a percussive arrangement.
摘要翻译： 液压冲击装置技术领域本发明涉及一种液压冲击装置，其包括在壳体（11）中的可移动装置（1），其中下列装置布置在可移动装置（1）处：第一腔室（5） 用于液压油的返回管线（7），在第一室（5）的第一侧上的衬套（6），并沿着可移位装置（1）与第一室（5）分隔开第一间隙（12）;以及 第二室（2），其具有比第一室（5）更高的液压油压力，并且布置在第一室（5）的第二侧上，与第一室（5）分隔开第二间隙（4） ）沿着可移位装置（1）。 根据本发明，第三室（8）固定地设置在第二间隙（4）和第一室（5）之间，第三室（8）不仅通过第一通道 （14），而且沿着可移位装置（1）的第三间隙（9）。 本发明还涉及一种具有这种液压冲击装置的活塞导向件以及具有这种冲击装置的钻机。
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公开(公告)号：US20110303431A1
公开(公告)日：2011-12-15
申请号：US13156603
申请日：2011-06-09
IPC分类号： B25D9/16
CPC分类号： B25D17/06 , B25D11/005 , B25D2217/0015 , B25D2250/035 , B25D2250/365
摘要： A power tool is disclosed. The power tool includes a striker, a guide tube in which the striker is guided along an axis, and a pneumatic chamber, which is closed by the striker, the guide tube and a valve device actuated by its own medium. A volume of the pneumatic chamber changes in the case of a movement of the striker along the axis. The valve device has a swivelable sealing element between the striker and the guide tube. The swivelable sealing element is swiveled into a retracted position when the striker moves in the impact direction and is swiveled into an extended position when the striker moves against the impact direction. In the retracted position, the sealing element has a first inflow surface. In the extended position, the sealing element has a second inflow surface. The second inflow surface is larger than the first inflow surface.
摘要翻译： 公开了电动工具。 电动工具包括一个撞击器，一个引导管，其中撞针沿着一个轴线被引导;一个气动室，由冲击器，引导管和由其自身的介质致动的阀装置封闭。 在冲击器沿轴线运动的情况下，气动室的体积变化。 阀装置在冲击器和引导管之间具有可旋转的密封元件。 当撞针沿冲击方向移动时，可旋转的密封元件旋转到缩回位置，并且当撞针相对于冲击方向移动时，可旋转的密封元件旋转到伸出位置。 在缩回位置，密封元件具有第一流入表面。 在延伸位置，密封元件具有第二流入表面。 第二流入面大于第一流入面。
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