Selection of hydraulic components for body hoist control of dumper

摘要

Hydraulic system is generally used in off-road vehicles for their efficient operation in wider speed range of operation and easier monitoring. Dumper is one of the important, off-road vehicle used in open pit mines for transporting loose material from one place to another. It consists of a body which is mounted on the chassis and raised by means of the hydraulic actuator. The hydraulic system of dumper consists of the hoist, steering, brake and the brake cooling circuits. The selection of the basic hydraulic components of the dumper depends on its maximum dumping capacity. This paper discusses the basic approach of selecting the major hydraulic components for the body hoist control of rear discharge 50 tonne dumper. This paper also highlights the effects of the performance characteristics of the major components like hydraulic pump and the overall efficiency of the proposed hydraulic system.