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当液压缸运动到行程末端,如若使它立即停止(或返回),将会引起很大的冲击和振动。尤其当运动速度高,运动件质量大时,巨大的冲击力将会造成液压缸或其他承载零件损坏。因此,当液压缸活塞运动到接近行程终了时,需要采用一定的减速装置使它减速,逐渐停止。采用减速装置来控制减速运动、缓和冲击方法基本有两种:一种是液压缸外部控制,也就是液压缸的回油路上装上节流阀或其他形式的流量控制装置或吸能装置;另一种是液压缸内部控制,也就是在缸内部设计一定的缓冲元件来实现缓冲。由于用控制缓冲元件间构成的
When the hydraulic cylinder moves to the end of the stroke, if it is stopped (or returned) immediately, it will cause a great shock and vibration. Especially when the movement speed is high and the mass of the moving parts is large, the huge impact force will cause damage to the hydraulic cylinder or other bearing parts. Therefore, when the hydraulic cylinder piston moves to near the end of the stroke, it needs to use a certain deceleration device to make it slow down and stop gradually. The use of deceleration devices to control deceleration, mitigation of impact There are basically two ways: one is the hydraulic cylinder external control, that is, the hydraulic circuit mounted on the throttle valve or other forms of flow control device or energy-absorbing device; the other One is the internal control of the hydraulic cylinder, which is designed within the cylinder buffer components to achieve a certain buffer. As a result of the control buffer between components