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Scraping method of main bearing shell of ball mill

A technology of main bearing bush and ball mill, which is applied in the field of mechanical repair and inspection equipment, can solve the problems of long maintenance time, low success rate, oil film damage, etc., and achieve the effect of reducing maintenance time

Inactive Publication Date: 2011-11-23
NANJING MEISHAN METALLURGY DEV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will directly or indirectly lead to the destruction of the oil film between the main bush and the hollow shaft of the ball mill, and the friction between the two will increase, which will lead to the temperature rise of the main bush, which is unavoidable in the actual production process
In the actual maintenance, workers deal with it according to their feelings and imaginations, resulting in low maintenance efficiency, long maintenance time, low success rate, wasting a lot of manpower and material resources and failing to achieve the maintenance effect

Method used

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  • Scraping method of main bearing shell of ball mill
  • Scraping method of main bearing shell of ball mill
  • Scraping method of main bearing shell of ball mill

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Embodiment Construction

[0029] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0030] attached Figure 1-2 The middle marks respectively represent: main bearing 1, split surface 2, boundary line 3, and contact angle α.

[0031] This scraping method is mainly suitable for sliding bearings made of Babbitt alloy or copper casting, see attached Figure 1-2 , the method of scraping and grinding the main bearing bush of the ball mill is as follows:

[0032] Preparation

[0033] Sand the hollow shaft with 120-200 grit sandpaper until the finish reaches above. If there is no condition for accurate measurement on-site inspection, hand touch and visual inspection can be used. The measurement standard is: the tactile sense of the hand should be similar to that of a mirror when touched by the hand; Then clean the ...

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Abstract

The invention belongs to machines and tools for machine repair and inspection, and in particular relates to a scraping method of the main bearing shell of a ball mill after the main bearing shell of the ball mill is out of order. The scraping method is mainly applicable to sliding bearings cast by using babbitt metal or copper, and accurately defines the parameters and steps for scraping the main bearing shell by four main steps of demarcating border lines, finding a basal plane, uniformly spotting and approving by stress, thereby greatly shortening the inspection and repair time and improving the inspection and repair efficiency. The invention has the advantages of ensuring successful scraping once, preventing repeated inspection and repair, greatly shortening the inspection and repair time every time and reducing the labor intensity of workers.

Description

technical field [0001] The invention belongs to mechanical repair and inspection equipment, and in particular relates to a method for scraping and grinding the main bush of a ball mill after the main bush of the ball mill fails. Background technique [0002] Ball mill is an important equipment widely used in metallurgy, mining, electric power and other related industries for crushing and grinding of various materials. In the production practice of mineral processing plants, ball mill is the throat equipment of the entire mineral processing process. In the past production, the main accident was that the main bearing bush was burned out, which could easily lead to a long-term shutdown for maintenance. Due to the large maintenance workload, high technical requirements, and low success rate of one-time maintenance, it causes great losses in manpower, material resources and production. [0003] After a certain working time of the ball mill, due to various reasons, the temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D79/02
Inventor 陈喜华施兴洲
Owner NANJING MEISHAN METALLURGY DEV
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