Analysis on the oil seepage treatment method of sliding bearing of explosion-proof motor

In many high-voltage explosion-proof motors, the use of plain bearings is more and more, mainly in the very important production departments and product processing areas. This is also because the use of plain bearings can improve the efficiency and operational safety of high-voltage explosion-proof motors. However, often in the installation and use of supporting, it will lead to oil leakage and oil leakage due to some sloppiness and small problems in the process. This problem will reduce the efficiency of high-voltage explosion-proof motor and safety risks. If you want to improve this situation, it is necessary to start the internal design of high-voltage explosion-proof motors and the production and processing of bearings, from which better protection can better reflect the performance and safety of high-voltage explosion-proof motors.

First, the basic structure of high-voltage explosion-proof motor sliding bearings

The plain bearing is composed of bearing bush and bearing bracket, which also improves the stability of the bearing, and some auxiliary parts such as sealing ring, oil ring, bearing bush, etc., which are equipped with bearing temperature measurement components in a good high-pressure explosion-proof motor. If lubricating oil is applied to the plain bearing, the friction can be greatly reduced, which is conducive to the safe operation of high-voltage explosion-proof motors. If the high-voltage explosion-proof motor is in continuous work or overload operation, it is necessary to apply lubricating oil in time, so that it can be better used.

Second, the failure and protection of high-voltage explosion-proof motor sliding bearing oil leakage

1, the quality problem in the manufacturing of sliding suction: in the high-pressure explosion-proof motor, the part that is easy to leak oil mainly occurs in the bearing interface, outlet, sealing position, these positions are not considered in the manufacturing process of the main parameters of the components, and in the main oil port entry place, some electronic components and other places that need to be sealed without strengthening the seal. The problem of oil leakage occurs when the high voltage explosion-proof motor is running. In this way, it is necessary to start from the processing of explosion-proof motors to strengthen the strength and size of plain bearings

The size and various sealing measures are done to greatly reduce the appearance of oil leakage in the structure.

2, the importance of the quality of the installation and debugging link of the sliding extraction: in fact, the installation and debugging is only to adjust the pressure of the oil supply, if the installation and debugging process of the explosion-proof motor, the pressure of the oil intake should be adjusted to the high point, if the position of the bearing oil tank is too high, and the oil will leak out, this time it is necessary to follow the instructions of the explosion-proof motor factory

The pressure of the oil port can be adjusted to maintain a certain flow rate.

3, the internal design of the explosion-proof motor will affect the oil leakage of the sliding bearing: in the internal structure of the explosion-proof motor, near the sliding bearing, the explosion-proof motor will form negative pressure inside the sliding bearing under normal operation, which will cause oil mist inside the bearing, and oil droplets will be formed during long-term operation, at this time, it will leak outside. At this time, it is necessary to increase the sealing type of the sliding bearing, reduce the formation of oil mist inside, and add a layer of sealing between the inner shell and the shaft of the sliding bearing. Under the premise of a wide range of high-voltage explosion-proof motors, it is necessary to start from the process, design, processing, accessories and other aspects of high-voltage explosion-proof motors to strengthen the production quality of high-voltage explosion-proof motors. In the use of high-voltage explosion-proof motor, the sliding bearing is an important influence, and plays an important and key part in the application, so it is necessary to be vigilant in the actual operation of high-voltage explosion-proof motor, the production of explosion-proof motor manufacturers to strengthen the development and application of new technology.