Common failure factors of hydraulic motors

Today, quality assured hydraulic motors can improve the operation efficiency of equipment equipment, providing the necessary power for the operation of equipment. Hydraulic motor with its high efficiency, safety, reliability and compact structure characteristics, and is widely used in the power rotation system of drilling machine, such as in the industrial sector, agriculture, forestry, animal husbandry and fishery industries. However, the hydraulic motor will also have common faults during operation, which is analyzed below.

1: The device is leaking

Many factors, such as the working pressure difference of the hydraulic motor, the viscosity of the oil and the structural form, will cause the equipment to leak too much, the volume efficiency is greatly reduced, and will cause the hydraulic motor to shake or stop when turning. Therefore, maintenance personnel need to test the sealing performance of the hydraulic motor, and choose the appropriate viscosity of the hydraulic oil, if necessary, it is necessary to set up a special brake device, so that the heavy weight slowly falls or the vehicle slides on the slope and causes an accident.

2: The device is crawling

The unstable leakage of the hydraulic motor will lead to the crawling phenomenon of the motor, so the maintenance personnel should judge the friction and wear of the hydraulic motor in time according to the abnormal changes in the temperature and noise of the hydraulic motor, and should be able to ensure that the relative moving surface of the system has enough lubrication, and the appropriate oil should be selected and kept clean. Keep a good seal and check the leak site in time and take anti-leak measures.

3: equipment noise

There may be mechanical noise and hydraulic noise during the operation of high efficiency hydraulic motor. Mechanical noise is mainly caused by the loosening, collision and eccentricity of bearings, couplings or other moving parts; Hydraulic noise is caused by the pulsation of pressure and flow, the change of trapped oil volume, the impact when high and low pressure oil is connected instantaneously, the friction during oil flow, eddy current and air precipitation, and so on.

Not only that, the reliable performance of the hydraulic motor will also be due to the assembly quality, parts sliding surface wear, lubrication status, viscosity of hydraulic oil, etc., resulting in the size of the internal friction resistance of the system is uneven or unstable, at this time, maintenance personnel should pay attention to the lubrication status of the hydraulic motor and to detect the viscosity of the hydraulic oil, timely replacement of vulnerable parts.