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Causes and treatment of gear oil pump not oiling

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Gear oil pump is a device that converts mechanical energy into hydraulic energy by a pair of gears that mesh with each other. It is widely used in the lubrication system of air compressors. The failure of the oil pump in operation is usually a drop in oil pressure in the lubrication system, and sometimes it can not be oiled. The reasons are generally:
1) The direction of rotation is opposite to the prescribed direction;
2) The suction pipe is not thorough, and the check valve is stuck;
3) Poor seal between the pump body and the pump cover;
4) The amount of oil in the oil tank is insufficient;
5) severe wear of oil pump parts;
6) The suction filter is blocked. In actual work, different treatments should be performed according to specific situations. During the inspection, special attention should be paid to the sealing of the suction pipe and the seal between the pump body and the pump cover of the large-flow gear pump . If the suction end is not well sealed, air will leak into the inlet of the oil pump, causing the oil pump to evacuate.
7) The high-flow gear pump works with two gears rotating with each other, and does not require high media. The general pressure is below 6 MPa, and the flow is relatively large. A pair of slewing gears are installed in the pump body, one is active and the other is passive. A is the suction chamber and B is the discharge chamber. During operation, the driving gear drives the driven gear to rotate. When the gear is engaged to disengaged, a partial vacuum is formed on the suction side (A), and the liquid is sucked. The sucked liquid fills each tooth valley of the gear and is taken to the discharge side (B). When the gear enters the mesh, the liquid is squeezed out to form a high-pressure liquid and is discharged out of the pump through the pump discharge port.
The old gear oil pump is generally not too oily because the gap is too large, that is, the gear and the gear, the gear and the pump body, the gear and the end face are affected by excessive wear. The above is the problem of the gear oil pump used for too long.
Solution: The reason for the large gap of the high-flow gear pump can only be adjusted the end surface clearance. Replace the thin cushion to reduce the gap of the gear oil pump, causing the liquid to be pumped out. If not, you must replace the gear oil pump with a new one.
  • Taixing Gear Oil Pump Tel: 0523-87893614 Fax: 0523-87893614 Email: liouxiaoyu716@163.com
  • Address: Haigu Industrial Zone, Huangqiao Town, Taixing City Record number: 苏 ICP 备 16058667
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