Hydraulic control system of low-density material transportation semitrailer

Abstract

The invention discloses a hydraulic control system of a low-density material transportation semitrailer. The rear door opening and closing oil cylinder is used for controlling a rear door opening and closing of the low-density material transportation semitrailer, the roller hydraulic motor is used for controlling a discharging roller of the low-density material transportation semitrailer to rotate, the winch hydraulic motor is used for controlling a discharging push plate of the low-density material transportation semitrailer to return, and the oil cylinder is used for controlling the rear door opening and closing. The hydraulic oil pump and the hydraulic oil tank are used for providing power for the whole hydraulic control system. The hydraulic system has the advantages of simplicity in control, low manufacturing cost and capability of well solving the problems of heating and system faults of the hydraulic system.

Description

technical field [0001] The invention relates to the technical field of low-density material transport semi-trailers, in particular to a hydraulic control system for low-density material transport semi-trailers. Background technique [0002] At present, the hydraulic control system used in domestic low-density material transportation semi-trailers usually uses pressure reducing valves to realize high and low pressure control, and uses the method of adding tensioning cylinders to ensure the tension of steel wire ropes and conveyor belts. However, this structure has the following problems: [0003] 1. The pressure reducing valve needs to reach the overflow pressure of the main relief valve when it is working, and the excess flow of the hydraulic system will overflow back to the hydraulic oil tank under high pressure, which will cause serious heating of the hydraulic system; [0004] 2. Adopting the method of increasing the tensioning oil cylinder will lead to an increase in the...

AI Technical Summary

Problems solved by technology

[0003] 1. The pressure reducing valve needs to reach the overflow pressure of the main relief valve when it is working, and the excess flow of the hydraulic system will overflow back to the hydraulic oil tank under high pressure, which will cause serious heating of the hydraulic system;

[0004] 2. Using the method of increasing the tensioning cylinder will lead to an increase in the length of the wire rope, and at the same time will increase a lot of guide pulley mechanisms, resulting in an increase in the failure rate of the system

Images