Maintenance and maintenance of explosion-proof permanent magnet motors

We introduced the working principle of the explosion-proof permanent magnet motor last time. It can be seen that its working principle is somewhat complicated. Usually when we use explosion-proof permanent magnet motors, we need to carry out careful maintenance and maintenance. Taking such measures can increase the service life of its explosion-proof motors. So what are the maintenance and upkeep tasks for explosion-proof permanent magnet motors? Let’s find out together next!

First of all, before using an explosion-proof motor, we must carefully check whether there is any serious mechanical damage to the explosion-proof surface during transportation, hoisting or installation. If there is irreparable mechanical damage, it is necessary to replace the explosion-proof motor with the same type.

Explosion-proof motors must adopt the correct installation process, and the force must be even during installation to prevent improper operation from deforming the explosion-proof surface. The fastening screws of the explosion-proof motor sealing ring cannot be tightened too tightly or too loosely. If it is too tight, the sealing ring will be cracked due to excessive force; if it is too loose, the sealing ring will be easily damaged by external corrosion and lose the sealing effect.

In order to extend the service life of explosion-proof motors, regular maintenance and upkeep of explosion-proof permanent magnet motors should be carried out. The interval can be determined according to the type of motor and the operating environment. The main maintenance and upkeep items are as follows:

1. Remove debris, dust and sludge from the outside of the motor base in a timely manner. If there is a lot of dust in the operating environment, it must be cleaned every day.

2. Always check whether the motor terminals and screws are loose or burned.

3. Measure the insulation resistance of the motor regularly. If the operating environment is relatively humid, it should be measured more frequently.

4. Clean the bearings with kerosene regularly and replace with new oil (usually once every six months). It is not recommended to fill the oil completely when changing the oil. Generally, 1/2~1/3 of the oil chamber is sufficient. Otherwise, it will easily generate heat or be thrown out, and the oil will To add people from one side, you can squeeze out the impurities that have not been cleaned from the other side.

5. Check the vulnerable parts of the electrical starting equipment regularly to see if the contacts and terminals are burnt, oxidized, and have good contact.

6. Check the insulation condition. The insulating ability of insulation materials varies with the degree of dryness, so it is very important to keep the motor windings dry. Factors such as a humid working environment of the motor and the presence of corrosive gases in the working room will damage the insulation of the motor. A common thing is that the winding is grounded, that is, the insulation is damaged, causing the live parts to collide with metal parts that should not be live, such as the casing. This kind of failure will not only affect the normal operation of the motor, but also endanger personal safety. Therefore, when the motor is in use, the insulation resistance should be checked frequently, and attention should also be paid to check whether the grounding of the motor casing is reliable.

7. In addition to regular protection of the motor according to the above contents, the motor and related mechanical equipment must also be overhauled in a planned manner. Conduct thorough and thorough inspection and maintenance of the motor, replenish the missing and worn components of the motor, completely remove dust and dirt on the inside and outside of the motor, check the insulation condition, clean the bearings and check their wear.

Explosion-proof motors are mainly used in harsh environments such as flammable and explosive. Usually these motors are used in harsh environments. In addition, irresponsible maintenance personnel do not check the motor's starting equipment properly, which will accelerate the aging of the insulation and damage the motor. Therefore, we must strengthen the maintenance and maintenance of explosion-proof permanent magnet motors to extend the service life of explosion-proof motors.