如果油缸的换向运动能自动控制,那么对于油缸的一些应用便能被简化。这一点只要在活塞上装上一个带有弹性装置的阀便可以做到(见附图)。在起始位置时碟形阀被压在一个打开的位置。这时候介质油由入口处流入A室并且经由已打开了的碟形阀流入B室,于是差动式活塞便慢慢地向右移动,直到碟形阀被右挡销(制动器)压住为止。由于在A室与B室之间形成了压力差,于是碟形阀被关闭,所以活塞便向左运动,这时候活塞的运动速度便由出口处的节流阀来调整。这样一直要到碟形阀的阀杆撞 If the cylinder reversing movement can be automatically controlled, then some applications for the cylinder can be simplified. This can be done by attaching a valve with a spring to the piston (see attached). In the home position the disc valve is pressed in an open position. At this time, the medium oil flows into the chamber A from the inlet port and flows into the chamber B through the opened disk valve, and the differential piston slowly moves to the right until the disk valve is stopped by the right stopper (stopper) . As a result of the pressure difference between chamber A and chamber B, the disc valve is closed so that the piston moves to the left, at which point the speed of the piston is adjusted by the throttle at the outlet. This has been to the disc valve stem hit