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液压挖掘机工作时,操作动臂和斗杆复合动作的频次最多,该复合动作的操作性对整机操作的舒适性、效率影响较大。通过对于用户普遍认可的几种知名品牌液压挖掘机的动臂和斗杆液压分流及合流回路的分析,并通过专业机手的测试,结合这几种液压回路和测试数据,分析和总结动臂和斗杆液压分流和合流回路的特点,并对现有该复合动作协调性不好的机器液压系统改进,同时进行测试验证。
When the hydraulic excavator is working, the frequency of the composite action of the boom and the stick is the most, and the operability of the composite action greatly affects the comfort and efficiency of the whole operation. Through the analysis of the hydraulic shunting and merging circuits of boom and stick of several well-known brand hydraulic excavators generally accepted by the users, and through professional hand test, combined with these hydraulic circuits and test data, the boom And the characteristics of the hydraulic shunting and merging loops of the stick, and improving the existing hydraulic system of the machine with poor coordination of the composite action, and simultaneously performing the test and verification.