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What is the cause of hoist shaft wear? What are the treatment measures?

(Summary description)Hoist is a large-scale mechanical equipment transported by changing potential energy. During its operation, hoist shaft wear is a very common equipment fault.

What is the cause of hoist shaft wear? What are the treatment measures?

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What is the cause of hoist shaft wear? What are the treatment measures?

(Summary description)Hoist is a large-scale mechanical equipment transported by changing potential energy. During its operation, hoist shaft wear is a very common equipment fault.

Categories:Industry news
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Time of issue:2021-10-22 09:38
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Hoist is a large-scale mechanical equipment transported by changing potential energy. During its operation, hoist shaft wear is a very common equipment fault. Next, Xiaobian will explain the causes and treatment measures of hoist shaft wear.

Generally, the causes of hoist shaft wear can be summarized as follows:

The normal fatigue wear of metal is the inherent characteristic of metal itself;

The problem of fitting relationship. No matter how high the machining accuracy is, the parts can never achieve 100% fitting of the fitting surface of the parts. From the microscopic magnification observation, the metal fitting surface can only achieve 30% - 50%, so the small stress surface of the fitting part is also one of the fundamental reasons for metal fatigue wear;

Installation problem: during the installation process, the installation position of the bearing can not be well controlled or the clearance of the bearing can not be effectively controlled, resulting in the bearing can not be in a good state during operation, and then the operating resistance increases, the temperature increases, and more torque acts on the mating surface, resulting in relative movement between the bearing inner ring and the shaft surface, resulting in shaft wear.

Operation and maintenance, including poor lubrication of bearings, high operating temperature caused by blockage of cooling system, loosening of fastening devices, etc.

Treatment measures for wear of hoist shaft:

Repair welding machine processing, brush plating, thermal spraying, laser cladding and so on are all commonly used treatment measures, but there are more or less disadvantages in repair effect, repair time, repair cost and so on. In addition to the above treatment measures, we can also use soray carbon nano polymer material technology for repair. This technology not only has simple and convenient operation and short repair time, but also ensures the use effect after repair.

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