Hydraulic system components of rear-turning dump semi-trailer
The rear-turning dump semi-trailer train is mainly composed of a tractor and a semi-trailer. The main vehicle (tractor) is connected to the semi-trailer through a saddle to form a semi-trailer train. The hydraulic lift system of the rear-turn dump semi-trailer mainly consists of a power take-off (gearbox), hydraulic pump, lift valve, air control valve, limit valve, hydraulic cylinder, hydraulic tank, high (low) pressure oil pipe, etc.
Principle of hydraulic system of rear-turning dump semi-trailer
The hydraulic lifting principle of the rear-turning dump semi-trailer is as follows: the power take-off device of the main vehicle gearbox is controlled to drive the hydraulic pump. The hydraulic pump sucks the hydraulic oil in the hydraulic tank through the low-pressure inlet pipe and generates high-pressure oil for output. The gear pump outputs The high-pressure oil enters the lift valve through the high-pressure oil pipe. The lift valve, under the control of the air control valve, delivers the high-pressure oil to the oil cylinder or discharges it into the hydraulic oil tank to realize the lifting, stopping and lowering functions of the hydraulic cylinder.
