公开(公告)号：US4635536A

公开(公告)日：1987-01-13

申请号：US734742

申请日：1985-05-14

申请人： Ming Liu ,  John F. Bowbin ,  Raymond L. Ghislain ,  Stephen K. McDaniel

发明人： Ming Liu ,  John F. Bowbin ,  Raymond L. Ghislain ,  Stephen K. McDaniel

IPC分类号： F15B15/26

CPC分类号： F15B15/261

摘要： Locking apparatus for a piston and cylinder device includes a locking plunger connected to the piston and disposed between the piston and an end cap of the piston and cylinder device. The locking plunger includes a sleeve which carries a plurality of radially movable ball bearings. As the piston is moved toward an extreme position of the device, the ball bearings contact a spring loaded locking plug disposed in the head of the device, thereby moving the plug away from a first position. The piston and locking plunger continue to move the locking plug away from the first position until the balls are aligned with a circumferential groove or channel in the head. At this point the locking plug is moved to the first position under spring force, in turn moving the ball bearings radially outward into engagement with the channel or groove. The piston and piston rod of the device are thereby locked in position in the absence of fluid pressure. The locking plug includes surfaces against which pressurized fluid acts at the beginning of a return stroke to move the plug away from the first position and release the ball bearings from the channel. The piston is thereby unlocked and is free to move toward the other extreme position of the device.

摘要翻译： 活塞和气缸装置的锁定装置包括连接到活塞并设置在活塞和活塞和气缸装置的端盖之间的锁定柱塞。 锁定柱塞包括承载多个可径向移动的滚珠轴承的套筒。 当活塞向装置的极限位置移动时，球轴承接触设置在装置的头部中的弹簧加载的锁定插头，从而将插头从第一位置移开。 活塞和锁定柱塞继续将锁定塞移动离开第一位置，直到球与头部中的周向凹槽或通道对准。 此时，锁定塞在弹簧力下移动到第一位置，从而径向向外移动球轴承以与通道或凹槽接合。 因此，在没有流体压力的情况下，装置的活塞和活塞杆被锁定就位。 锁定塞包括在返回行程开始时加压流体作用于其上的表面，以使塞子远离第一位置移动并从通道释放球轴承。 因此，活塞被解锁并且能够朝向装置的另一极限位置移动。

公开(公告)号：US3988968A

公开(公告)日：1976-11-02

申请号：US535277

申请日：1974-12-23

申请人： Walter C. Peters ,  Raymond L. Ghislain ,  Francis S. Flick

发明人： Walter C. Peters ,  Raymond L. Ghislain ,  Francis S. Flick

IPC分类号： F15B15/24 ,  F01B11/02 ,  F16J15/18

CPC分类号： F15B15/24

摘要： A stop tube for use in cylinder assemblies. The stop tube is defined by a base having a tube secured thereto and the base is adapted to be slidably received on the rod of a cylinder to float thereon.

摘要翻译： 用于气缸组件的止动管。 止动管由具有固定在其上的管的底座限定，并且底座适于可滑动地容纳在气缸的杆上以在其上浮动。