Classification and maintenance of electric hoist

First, the classification of electric hoist
Electric hoist mainly has the following types of classification:
Divided by structural form:
Wire rope electric hoist: composed of motor, transmission mechanism, drum and wire rope. It has the characteristics of small volume, light weight, easy operation, etc., and is widely used in industrial and mining enterprises, warehouses, docks and other places for lifting operations.
Chain electric hoist: with chain chain as the lifting medium, compared with wire rope electric hoist, chain electric hoist has the advantages of fast lifting speed, smooth operation, wear resistance, etc., suitable for occasions with higher lifting speed and accuracy requirements.
By installation method:
Fixed electric hoist: installed on a fixed support structure, can not be moved. It is usually used in specific workplaces, such as fixed stations in workshops.
Running electric hoist: it can walk on the track to expand the scope of operation. It can be divided into single beam operation and double beam operation, which are suitable for different lifting needs.
According to the use environment:
Ordinary electric hoist: suitable for general indoor working environment, the temperature, humidity and other conditions are relatively low requirements.
Explosion-proof electric hoist: specially used for flammable and explosive and other dangerous environments, its electrical equipment and mechanical components are specially designed and treated to ensure safe operation in dangerous environments.
Second, the maintenance of electric hoist
In order to ensure the safe and reliable operation of the electric hoist and extend its service life, regular maintenance is required. The following are the maintenance points of electric hoist:
Daily maintenance:
Before each use, check whether the appearance of the electric hoist is damaged and whether the components are firmly connected.
Check whether the wire rope or ring chain has wear, broken wire, deformation, etc., if there is a problem, it should be replaced in time.
Check whether the hook has cracks, deformation and other defects to ensure the safety performance of the hook.
During the operation, pay attention to the operation of the electric hoist, if there is abnormal sound, vibration or odor, it should be immediately stopped and checked.
After use, clean up the electric hoist and store it in a dry and ventilated place.
Regular maintenance:
Every once in a while (generally one month to three months), the electric hoist is fully inspected and maintained.
Check the insulation performance of the motor to ensure the normal operation of the motor.
Check the gear, shaft, bearing and other parts of the transmission mechanism, and fill the appropriate amount of lubricating oil to ensure the good lubrication of the transmission parts.
Clean and lubricate wire ropes or chains to extend their service life.
Check the electrical control system to ensure that the electrical components are working properly and the wiring is firmly connected.
Check and adjust the brake device of the electric hoist to ensure reliable braking performance.
Special maintenance:
If the electric hoist is used in harsh environments, such as high temperature, humidity, corrosion and other environments, the number of maintenance should be increased according to the actual situation, and corresponding protective measures should be taken.
For the electric hoist that has not been used for a long time, a comprehensive inspection and trial operation should be carried out before re-use to ensure its normal performance.
In short, the correct classification and scientific maintenance can improve the efficiency and safety of the electric hoist and extend its service life. When using the electric hoist, it should be operated in strict accordance with the operating procedures, and regular maintenance and maintenance.