How to solve the problem of DC motor abnormal sound？

How to solve the problem of DC motor abnormal sound？

There are many kinds of DC geared motor common fault, here I will talk about it when a failure in the problem of sound, this is also one of the most common problems, why there is a different ring and how to repair? 

vibration-motor

If there is no axial channeling dynamic collision caused by the armature, should be a structure have loose phenomenon. Everyone please remember a principle: The pole on the gasket shouldn’t be got rid of more often, this will affect the motor performance and running state, about the problem of noise here is the following method: open the electric control system of the motor power supply access oscilloscope waveform is there lack of wave head, lacks can produce vibration and noise, then check the compensation coil and armature connection, if failed it may be the magnetic circuit is too strong, electromagnetic noise, you can put the motor to at the rated speed, to see whether there is in a certain range, and then cut off the power supply. Then to see whether there are noise in the process of slowing down, if not that is electromagnetic noise can be determined, if not it should be mechanical issues. 

explosion-proof-vibration-motor

So, we in the future when using gear motor, ensure that every time it is in the correct operation, also we can't forget the more at ordinary times of maintenance, it is a good way to prevent or reduce the problem.

rock-loader-motor

PK Machinery has been exporting belt conveyor, bucket elevator, scraper conveyor, screw conveyor, vibrating screen and other spare parts for many years. We do believe business between our customers and us can develop fast. Any enquiry, please contact us!

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The daily Care and Maintenance of Motorized Pulley

Are you in trouble with maintaining and repairing motorized pulley when operate the belt conveyor? Come and check this article ,we are sure you will get a satisfied solution ! 
1. In order to create a good condition for normal operation, please check the surrounding environment, fastening bolts, oil leakage, the cable before each start-up.
2. Please start a new pulley with inching running, then it will turn into normal gradually, please check the machine vibration, noise, and temperature heating of each operating component after running for 10 minutes.
3. If oil leakage happens to motorized pulley, please pay attention to check two parts: one is oil seal, check it whether has wear and tear or deformation phenomenon, if any, please replace the cage oil seal timely; the other one is that the air outlet can’t be blocked, if there is blockage, the deposition of dust, grease and sundries shall be removed as soon as possible to ensure smooth access.
4. Regularly check the oil level in the drum is an important part of the daily maintenance, besides, regulation of the oil level height is one of the conditions to ensure the normal operation of the pulley. Inspection methods can be referred according to operation manual.

Common Failure Diagnosis and Troubleshooting of Motorized Pulley(1)

The motorized pulley should be checked regularly and eliminated trouble timely. The common failure and troubleshooting of motorized pulley will be introduced as shown as below:

1.The current of motor is low, and the cylindrical body doesn’t rotate.
Troubleshooting method: Motor should be checked regularly to know whether it is normal or not. If motor is normal, it indicates that there might be broken in coupling pin shaft ,after changing the coupling pin shaft and start the machine to prevent the more severe consequences.

2.Oil leakage in pulley ends and coupling rotating parts. 
Troubleshooting method: Tighten the spring coil or replace the grease seal.

3.Oil leakage in end cover. 
Troubleshooting method: Tighten the oil plug and change to grease resistant rubber gasket.

4.Oil leakage in the connection parts of cover and cylinder body. 
Troubleshooting method: Check whether the connecting bolts are loosen or not and check if the ventilation plug and air outlet are blocked, unclogging it or clean it if it is blocked.

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation.