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履带式液压挖掘机是用铲斗挖掘高于或低于承机面的物料,并装入运输车辆或卸至堆料场的土方机械。挖掘的物料主要是土壤、煤、泥沙以及经过预松后的土壤和岩石。在现如今的水利建设工程中,工业建设工程中、城镇建设中小型履带式挖掘机的使用还是非常广泛的。随着我国工程技术的快速发展,小型履带式液压挖掘机在使用数量和产品品质方面都有明显的改观。但是就液压系统而言,小型挖掘机在这方面的技术还不是很成熟,小型履带式挖掘机的液压系统还有待进一步的研究。
Crawler hydraulic excavator is a bucket excavation above or below the bearing surface of the material, and loaded into the transport vehicle or unloaded to the stockyard of earth moving machinery. Excavation of the material is mainly soil, coal, sediment and pre-loose soil and rocks. In today’s water conservancy construction projects, industrial construction projects, the use of small and medium-sized urban excavators tracked excavator is still very extensive. With the rapid development of engineering and technology in our country, the small crawler hydraulic excavator has obvious improvement in the quantity and product quality. However, the hydraulic system, the small excavator in this area is not very mature technology, small crawler excavator hydraulic system remains to be further studied.