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From the reducer bearing chamber wear analysis technology of choice
by:Waxing
2020-10-08
To the design of the speed reducer, general housing and the bearing outer ring clearance fit.
Bearing stress direction is fixed in the process of operation, main gear meshing between under reaction.
If bearing outer ring circumferential direction is fixed, the force will always effect on the bearing outer ring of a fixed point, this makes it easier to cause metal fatigue, reduce the service life of bearing.
In theory in the process of actual operation, the bearing outer ring allowed within a certain time period turning slowly.
This can effectively avoid reacting force always ACTS on the outer ring of a certain point, delay the fatigue wear of bearing.
Through the analysis of the design theory, think this is the fundamental cause of the reducer bearing chamber to wear one.
Because there will always be deviation, theory with practice in the design, manufacturing and assembly are uncertainty, it is difficult to effectively guarantee the reducer bearing chamber and the fitting clearance of bearing outer ring, and it is hard to ensure the bearing outer ring rotation cycle of the week.
So the bearing outer ring rotates the length of time will directly decides the service life of the bearing chamber.
But the bearing outer ring rotates cannot guarantee in actual application.
First analyze the common technique process, common method for set shaft sleeve, pitting, welding, brush plating, thermal spraying, laser cladding, the repair process in drive technology improvement and development at the same time, and because of the complex process conditions and the environment and limited, especially in the face of some unexpected emergency, large equipment, such as removal of complex equipment problems, the process is clearly the heart is unable to do.
Set sleeves, is very old style of playing pitting axle repair method, repair effect is poor, is now rarely used.
The more perfect craft, sauvy carbon nano polymer materials, for example, using the technology of materials to repair.
The site rapid maintenance reducer bearing housing application cases (
1)
Reducer bearing chamber surface baked oil processing and polished to reveal the metal color.
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