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Causes and solutions of hoist noise summarized by Xinghuo mine

Author: admin Release time: 2015-12-29 10:41 Number of visits:

Xinxiang Xinghuo mining equipment Co., Ltd Has been committed to the research and design of hoist equipment*** Spark mine Let's talk about the causes and solutions of the noise generated by the hoist
   
1. Abnormal noise of head wheel and bottom wheel: the noise is very small when the head wheel and bottom wheel work normally. When the abnormal noise occurs, the bearing is damaged due to poor sealing or lubrication, which is caused by the bearing seat. Carefully check the bearing condition of head wheel and bottom wheel. If the bearing is damaged, it should be replaced in time.
2. Abnormal noise in the barrel: the main reason for the abnormal noise in the barrel is the hopper falling off, damaged or loose. In this case, stop the machine immediately, carefully check and repair the falling, damaged or loose hopper. In daily work, bucket elevator every 500 hours, a comprehensive inspection of the hopper, hopper and hopper belt connection is firm, to ensure the stability of hopper work. At the same time, it can be installed at the back of the hopper to prevent the equipment from falling off.
3. The chain is loose and the chain bucket collides with the shell. When the chain of the machine is in use for a long time, it will cause the chain to swing when it is too long. The solution is to adjust the tension device, so that the chain shaking distance is about 3 mm.
4. Noise caused by collision between guide plate and hopper. The collision between the guide plate and the hopper is due to the small distance between the head wheel and the guide plate, which causes continuous collision and friction during the operation of the hopper. If you do not pay attention to this situation for a long time, the hopper is very easy to damage and fall off. The solution is to adjust the position of the guide plate and increase the spacing.
5. There is material between the guide plate and the hopper, which will lead to premature wear of the guide plate, resulting in continuous friction and noise during operation. The solution is to enlarge the input angle of base materials and enlarge the space for holding materials.
6. Noise caused by bearing failure. The bearing failure of bucket elevator is mostly caused by the material falling in the process of operation. When the hopper is loaded too much, the materials fall out of the hopper and fall on the bearing during the lifting process, resulting in the bearing locking and inflexible operation. Solution: replace the bearing in time and clean up the materials scattered on the bearing.
7. Materials or other foreign matters are stuck in the body to produce noise. Before the operation of the bucket elevator, clean up the accumulated materials at the bottom of the machine body to prevent the equipment failure caused by foreign matters stuck in the body during the operation of the equipment.
8. Noise caused by chain and gear engagement. This is for the ring chain or plate chain bucket elevator. When the chain is loose and swings during operation, it will cause dislocation when the chain and gear bite. If the chain is not paid attention for a long time, it will cause the chain deformation and aggravate the damage speed. The solution is to adjust the tension device and tighten the chain.
9. Poor tooth shedding between chain segments refers to poor tooth shedding when the chain is detached from contact with sprocket. The solution is to add proper lubricating oil to the chain wheel or chain to reduce the noise.
10. The noise when the two shafts of the coupling of bucket elevator are not concentric. The abnormal noise is produced at the coupling between the motor and reducer at the high-speed end of the driving device or at the coupling with brake wheel. This noise is also accompanied with the vibration with the same rotation frequency of the motor. When this kind of noise occurs, the position of the motor reducer should be adjusted in time to avoid the fracture of the input shaft of the reducer.
11. Noise generated by the reducer. Due to the long-term operation of bucket elevator, the internal oil consumption of reducer is increased, and the noise is generated due to the neglect of maintenance. The solution is to check and add lubricating oil regularly.
12. Noise caused by hopper falling off or loosening. When the hopper falls off, it will collide with other parts and produce noise during the operation of bucket elevator. Solution: if the internal sound of the machine body is abnormal, it is necessary to stop the machine in time, check whether the hopper is falling off or loose, and replace or fasten it in time.

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