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Briefly describe the main hydraulic system of hydraulic machinery and equipment
Author : admin Time : 2021-06-18 AllPageView : 268
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The main hydraulic system of hydraulic equipment is mainly composed of an oil tank and an oil pump. The hydraulic oil pump is the power source of the hydraulic system. The hydraulic oil pump we choose should meet the pressure and flow requirements of the oil tank of the hydraulic system. At the same time, we should fully consider the reliability, service life and maintainability, so that the selected hydraulic oil pump can operate in the tank hydraulic system for a long time. This is the subtle relationship between the two in the device:
The hydraulic oil tank in the hydraulic machine equipment is installed with:
1. The inlet cover is installed on the top of the oil tank, and there are two, among which the hydraulic air filter is installed on the inlet cover of the oil tank return area.
2. The hydraulic air filter filters the air circulating in the oil tank, and filters the oil when the oil tank is refueled.
3. Two level gauges, installed on the front side of the fuel tank, with two level gauges, high and low.
4. The oil temperature gauge is installed on the front side of the oil tank to measure the oil temperature in the oil tank. The normal working oil temperature is 30~70℃;
5. Two main oil return ports, set on the bottom plate of the oil tank, equipped with a one-way valve, respectively connected to the main oil return pipe and the overflow valve oil return port; the one-way valve is automatically closed when the hydraulic pipeline is repaired to prevent it from being in the oil tank The oil is lost.
6. The drain port is set on the bottom plate of the fuel tank and is blocked with a plug; the hydraulic oil of the fuel tank can be drained by opening the plug.
7. The suction port of the main oil pump is set on the front side of the oil tank, and the main suction filter is installed;
8. The oil suction port of the steering oil pump is set on the front side of the oil tank, and the steering oil suction filter is installed;
9. The oil return port of the steering system is set on the bottom plate of the oil tank and is equipped with a one-way valve. The one-way valve is automatically closed when the hydraulic pipeline is repaired to prevent oil loss in the oil tank;
The hydraulic oil pump in the equipment: the single gear structure is respectively installed on two hydraulic transmission power take-off boxes, driven by the torque converter pump wheel, the engine rotates, and the power take-off box can drive the oil pump. The power take-off box is equipped with a hydraulic clutch. When hydraulic action is required, you can operate the "hydraulic pump clutch" handle of the driller control box and set it to the "oil pump I on" position, and the oil pump I is combined to output working pressure oil; the handle is set to "oil pump II" "Close" position, the oil pump II is combined to output working pressure oil;. The handle is placed in the middle position, and the two oil pumps are separated and stopped.

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