Analysis and Design on Air Controlled Hydraulic System about Dump Truck Lifting Mechanisms

摘要

By analyzing the composition and working principle of air controlled hydraulic system and referring to similar models, the design of the tank, the limiting mechanism and power taker are conducted. 3201Z-type dump truck is modification desiged by EQ3208GJ dump truck chassis which the technical performance parameters are know n, and using a lifting mechanism of air controlled hydraulic system. By calculating the main technical parameters, including in the performances of the hydraulic cylinder and the hydraulic pump, the dump truck's special oil cylinder HG-E180X780 and gear pump CBT-E563 are selected. By the stability of the piston rod, the system pressure and cars lifting time are checked, the reasonability and safty of the design can be proved.