Working process and maintenance rules of mining electric locomotive

The mining electric locomotive plays an important role in the entire transportation work of the mining system. As a user, many times we not only need to understand its working principle and the characteristics of the machine itself in detail, in addition to this In addition, we must have a good understanding of its working process and maintenance measures. The following editor will introduce you in detail.

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Working process of mine electric locomotive:

1. The working process of overhead electric locomotive. After the high voltage alternating current is reduced and rectified by the traction converter, the positive pole is connected to the overhead line and the negative pole is connected to the rail. The pantograph on the locomotive is in contact with the overhead line, and the current is introduced into the car, and then enters the traction motor through the air automatic switch, controller, and resistance box to drive the motor to run. The electric motor drives the wheels to rotate through the transmission device, thereby pulling the train to travel. The current from the motor flows back to the converter through the track.

2. The working process of the battery electric locomotive. The direct current provided by the battery enters the motor through the flameproof plug, the controller, and the resistance box to drive the motor to run. The electric motor drives the wheels to rotate through the transmission device, thereby pulling the train to travel.

 

How to effectively maintain the mine electric locomotive?

1. Check whether the air compressor is operating normally, whether the air duct is leaking, and release the waste oil and water in the air storage tank;

2. Check whether the commutator, carbon brush and brush holder of the air compressor motor are normal;

3. Check the spring pressure of the receiver, the degree of wear of the skateboard, and whether the receiver is flexible, complete and complete;

4. Check the terminals and resistance elements of the resistors, and they shall not be loose or broken;

5. Use a dust blower or clean cotton wool to remove dirt and dust inside the switch, and keep all parts clean;

6. Check whether the fastening parts such as screws and nuts are firm and reliable, and whether the contacts are loose;

7. Check and adjust the contact disconnection distance and rolling distance;

8. Check whether the arc extinguishing cover is damaged and whether the fastening bolts are loose;

9. Check whether the insulation of the inner wall of the metal shell and the insulation bottom plate are intact;

10. Check whether the metal shell is deformed or damaged.

11. Check the wear condition of the brake shoes, replace the brake shoes, and adjust the brake shoe gap.

12. Check whether the brake of the brake system, the transmission rod (chain) and its connecting parts are normal and complete.

13. Check whether the wheel is cracked, whether the wheel tyre is loose, and whether the wheel tread wears depth.

14. Check the contact, wear and burn marks of the contacts. If there is burn mark, it can be processed and repaired with a fine file;

15. Check whether the armature device, tension spring, and tension rod are damaged, whether the compression spring on the moving contact is broken, whether the trip device is flexible and reliable, and whether there is jamming or failure;

16. Check whether the insulation performance of the live conductor parts on the shell is reliable;

17. Check whether the gear box (cover) is firmly fixed and whether it leaks oil;

18. Check the frame spring, hanger, balance beam for cracks and severe wear;

19. Check the connection device, there must be no damage and wear exceeding the limit;

20. Whether the sanding device is flexible and reliable, and whether the sand outlet is aligned with the center of the rail surface;