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What are the common faults of electric grease pumps?

2020-08-24 H:56:40
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  Do you know what are the common faults of the electric grease pump? The electric grease pump motor is an improved specific motor that drives the electric grease pump. The electric butter pump motor includes a motor main body, a front end cover an output drive shaft. A diameter-shaped hole is opened on the front end cover. The output drive is retracted into the front end cover is a hollow shaft. The shaft hole diameter is the same as the input drive shaft of the electric butter pump. The outer diameter of the output drive shaft is matched, there is a key groove on the shaft end of the output drive shaft. The electric grease pump is divided into high pressure low pressure, that is, the high-pressure plunger electric grease pump relies on the camshaft in the pump to drive the plunger to reciprocate up down in the plunger sleeve, high-pressure oil is supplied to the injector. The titles of electric butter pump motors generally focus on four aspects: failure to start, noise during work, low insulation resistance, overheating of bearings. So how to solve it? Let's take a look at it together.

  The electric grease pump cannot be started: firstly, the power supply should be blocked, the wiring should be carefully observed to see whether the wiring has a title, whether the mechanical part is stuck, etc., then check whether the load is exceeded. If it is , it means that the internal stator rotor windings have the title. .

  There is noise in the operation of the electric butter pump: listen carefully to the sound announced by the motor, assuming that the announcement of the grunt is generally due to the damage of the bearing balls, the announcement of the sizzling sound is caused by lack of oil, the loose rotor can also cause noise, so you need to start over Fix the rotor. Another situation is that the stator rotor undergo deformation after long-term high temperature effects, resulting in too small a gap between them, friction occurs. This requires us to polish the deformed part to meet the requirements.

  The insulation resistance of the electric butter pump is low: the working environment of electric power is changeable, the information provided by the user can help us better judge the fault. Before judging the fault of the motor, we must always ask the predecessors about the working condition of the motor the environmental condition of the place of use. In a humid environment, water can easily enter the motor cause the insulation value to be low, the oil on the windings can also easily cause the insulation value to drop. There is also a situation that is the aging of the insulation, which requires replacement of the insulation. .

  Electric butter pump bearing overheating: Through infrared thermometer, we can accurately quickly understand the temperature of the bearing. The bearing is overheated severely even burnt black smoke. This shows that the electric idea has long-term high current operation, which causes a lot of heat. This may be due to the end cover the bearing being too tight, causing it to become stuck unable to roll. It may also be due to uneven sides of the end cover, causing the motor to fail to work normally. There is also a low ignition point in the lubricating grease. The last condition is that the bearing is severely damaged, causing the motor to fail to work normally.


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