A brief analysis of oil seepage treatment method of sliding bearing of explosion-proof motor

In many high-voltage explosion-proof motors, sliding bearings are used more and more, mainly in very important production departments and product processing areas.This is also because the use of plain bearing can improve the use efficiency and safety of high - voltage explosion - proof motor.But often in the installation, use, matching, will be due to some careless and technical problems, will lead to the problem of oil leakage, seepage bearing.This kind of problem will reduce the high voltage explosion-proof motor use efficiency and safety hidden trouble.If you want to improve this situation, it is necessary to heavy high voltage explosion-proof motor internal design and bearing production and processing, from better protection, better embodiment of high voltage explosion-proof motor performance and safety.

I. basic structure of sliding bearing for high voltage explosion-proof motor

Sliding bearing is composed of bearing bush and bearing bracket, and also improve the stability of bearing, there are some auxiliary parts such as sealing ring, oil ring, bearing bush, etc., in a good high voltage explosion-proof motor with bearing temperature measuring parts.If the lubricating oil is applied to the sliding bearing, the friction can be greatly reduced, which is conducive to the safe operation of the high-voltage explosion-proof motor.If the high voltage explosion-proof motor in the continuous work or overload operation, to timely daub lubricating oil, so as to better use.

Ii. Fault and protection of oil leakage of sliding bearing of high voltage explosion-proof motor

1, the quality problems in manufacturing sliding bearing, easy to leak in the high voltage explosion-proof motor parts mainly in bearing interface, export, sealing position, the position is in the process of manufacturing without considering the parts of main parameters, and in the main oil mouth into place, such as some electronic originals need to seal without strengthening seal, lead to high voltage explosion-proof motor oil spill occurs on running problem.In this way, it is necessary to start from the processing of explosion-proof motor, strengthen the strength and size of sliding bearing, do a variety of sealing measures, greatly reduce the occurrence of oil leakage in the structure.

2, installation and debugging of sliding bearing link quality: the importance of installation and debugging actually just do some adjust on oil supply pressure, if in the process of explosion-proof motor for installation debugging, inlet pressure to the peak, if bearing tank position is too high, at the same time to the leakage of oil, this time will be according to the manual of explosion-proof motor factory oil pressure, adjust to keep a certain flow.

3, explosion-proof motor internal design will affect the sliding bearing oil: on the internal structure of explosion-proof motor, near the sliding bearing, explosion-proof motor under normal operation, will form negative pressure in sliding bearing formation, which is bearing the internal will cause oil mist, in the long run can form oil droplets, at this time will ooze out.At this point it is necessary to increase the seal type of the sliding bearing, reduce the formation of oil mist in the interior, and add a layer of seal between the inner shell of the sliding bearing and the shaft.

On 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 sliding bearing is an important influence, and in the use of an important, one of the key components, so in the actual operation of high voltage explosion-proof motor to enhance vigilance, the production of explosion-proof motor manufacturers to strengthen the development and application of new technology.