|Posté le : 10/11/2016 à 22:21 (Lu 557 fois)|
Hydraulic steering system
The steering hydraulic system is composed of gear pump, full hydraulic steering gear and steering oil cylinder, which is the core component of the steering system. The steering system consists of steering body, bidirectional buffer relief valve, overload relief valve, Back To one-way valve and other components.
The steering gear for the happy no feedback, happy to stop the steering, the gear pump output of hydraulic oil directly back to the tank, gear pump unloading, reducing system power waste, no feedback that the steering load of the reaction force of the steering Gear is not Feedback to the steering wheel, you can reduce the labor intensity of the driver. Small Road Roller - Shanghai Doan Machinery Technology Co., Ltd
The basic construction of the hydraulic system of double - drum roller
Walking hydraulic system
The double-drum roller hydraulic system uses a swash-plate axial piston pump and two oblique axial piston motor parallel closed circuit (see the schematic diagram), in order to ensure the normal operation of the closed loop, the system Also integrates the servo valve , Multi-function valve (high pressure relief valve, one-way charge valve), pressure shut-off valve, charge relief valve and flushing valve, now the main function of the valve described as follows:
Servo valve: Servo handle rotation through the servo cylinder to control the action to achieve the roller forward, stop and reverse. Multi-function valve: including high pressure relief valve and one-way charge valve, the main function of high pressure relief valve is The main circuit when the system pressure is higher than the relief valve set pressure overflow to protect the system components, High-pressure relief valve set pressure is 400bar, one-way charge valve is the main function of the low-pressure side of the system To replenish the oil to make up for the flushing valve flushing and system leakage loss of flow, to avoid air suction.
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