液压机卸压冲击的研究

Study of Relieving Impact on Hydraulic Press

大型液压机压制行程完毕或进入保压状态后,油缸和机架系统储存了相当大的能量,若压机突然转入回程,势必产生很大的液压冲击,从而造成设备和管路的剧烈振动,降低了系统的安全可靠性和系统的寿命。而且过度延长卸压时间会降低系统的效率。因此,随着液压系统的高压化发展,对系统的卸荷冲击及其缓冲措施进行深入细致的理论分析和试验研究日趋迫切。

Fuel tank and rack system store great energy after pressing process and pressure maintaining. If the forging machine suddenly turns into a return, it can he bound to have a lot of hydraulic shocks, and so result in a sharp line of the equipment and vibration and reduce the system＇s safety and reliability and its life inevitably. Prolong the stress--relief time excessively will be reduced the efficiency of the system. Thus, with the development of the high-- pressure hydraulic system, it is urgent to do a depth and meticulous theoretical analysis and experimental study on the unloading impact and cushioning measures.