Maintenance and maintenance of electric actuator

Electric actuators are mainly composed of motors, bearings, gear transmission systems and electronic parts. According to the reliability data, actuator faults are mainly concentrated in motors and bearings. Good maintenance can supplement the reliability deficiency of electric actuators and improve their effectiveness.

1. Strengthen the cleanliness management of lubricating oil

Electric actuators are characterized by the use of lubricating oil. Its viscosity changes with oil temperature. If the viscosity is too low, the wear of transmission parts such as worm and gear will increase, and the transmission accuracy will decrease. High viscosity, poor movement. However, it is more difficult to manage the cleanliness of lubricating oil. The infiltration of impurities and water generated by wear and aging of transmission parts such as worm and worm, and the shedding and corrosion of internal coating will affect the cleanliness of lubricating oil.

2. Eliminate grease leakage in time

Because of the high frequency and fast speed of the electric actuator, the impact is difficult to avoid, which is an important reason for the leakage of lubricating oil. Once the lubricating oil leaks, it needs to be solved in time.

3. Improve the working environment and use conditions

Reliability and life are directly related to factors such as service conditions, environmental conditions and personnel knowledge. Only in the maintenance management to improve its working environment and service conditions, it is possible to prolong its life.

4 In the early stage of failure, special maintenance should be strengthened

In most failures, the proportion of initial failures is generally higher. Initial failures are mostly caused by initial errors in design, manufacturing and installation. These initial failures take a lot of work to discover and time to resolve. Therefore, special maintenance management should be strengthened during the initial failure period.

5. Do a good job in data management to prevent occasional failures

Occasional failures are generally difficult to predict. To prevent occasional faults, check and maintain regularly, and master the maintenance data and historical files of a certain period. This is very important for accurate fault diagnosis and routine maintenance.

6. Improve the professional knowledge of operation and maintenance personnel

The professional knowledge of o&M personnel directly affects maintenance management. In recent years, due to structural changes, operation and maintenance personnel have greatly improved their knowledge and technical level of electric actuators. However, there are still many lack of professional knowledge and technology. The electric actuator is in the situation of "half-understanding", which is also the weak link of maintenance management.