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在油压机、折弯机、矫直机等液压系统中,工作状态的压力都很高,一般都需在10MPa以上,当工作完成以后,换向阀开始换向,将原来的高压油路接通回油油路,由于压力高流量大,换向时间又很短,所以在换向时产生压力冲击是相当严重的。造成连接螺纹松动、管路焊接部分和某些液压元件开裂,致使设备严重漏油无法工作,即使经常维修也不能从根本上解决问题,因此,在类似的液压系统中,换向时的压力冲击必须采取有效措施从根本上加以解决。
In the hydraulic machine, bending machine, straightening machine and other hydraulic systems, the pressure of working conditions are high, generally required at 10MPa above, when the work is completed, the reversing valve began to reverse the original high-pressure oil connected Back to the oil circuit, due to high pressure flow, commutation time is very short, so when the commutation pressure shock is quite serious. Resulting in loosening of the connecting thread, pipe welding parts and some hydraulic components cracking, resulting in serious oil leakage equipment can not work, even if the regular maintenance can not fundamentally solve the problem, therefore, in a similar hydraulic system, when the commutation pressure shock We must take effective measures to fundamentally solve it.