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本装置用于气动或液动活塞的速度控制。当活塞以高速小冲程工作时,用本装置能对机械工作部件进行高精度的控制。如图所系,装置主要由液动活塞1(作为系统的驱动机构,液量——压力转换器2和节流单元组合3构成。它们通过输入通道4和输出通道5与图中未画出的液动装置相连去控制一个机械工作部件,例如冲压机、剪切机或挖掘机的抓斗。节流单元组合可以
The device is used for pneumatic or hydraulic piston speed control. When the piston to work at high speed small stroke, the device can be used for high-precision mechanical control of parts. As shown in the figure, the apparatus is mainly composed of a hydraulic piston 1 (serving as a system drive mechanism, a fluid pressure-pressure converter 2 and a throttle unit combination 3. They communicate with an output port 5 through an input passage 4 and an output passage 5, Of the hydraulic device connected to control a mechanical working parts, such as stamping machine, shearing machine or excavator grab. Throttle unit can be combined