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Spherical mills in the mine equipment, the spherical huglet holder is generally used in the use of phenolic resin shaft. When this failure occurs, the phenolic resin shaft tiles are tight on both sides of the ball mill air, so that the shaft and the tiles are lubricated and invalid, form dry friction, and the watt winding temperature rises sharply. When the dispensing of the phenolic resin shaft tile was discovered, there was a significant burning trace on both sides of the shaft tile, but the central portion was intact.
The cause of the ball mill phenolic resin shaft hugging clip is mainly the following aspects, introduced by Xiaobian to you:
1 new ball grinder shaft tile does not effectively scrape, in contact with the shaft tile and hollow shaft Contact or contact surface distribution is unreasonable, resulting in a phenolic resin shaft tile bearing heat, and it is found that the shaft tile clamping is found. [12] 2 phenolic resin shafts themselves are not closed, and the anti-bending deformation performance is not good enough, and when the operation is subjected to other loads, deformation is generated, so that the ball mill is hugging.
3 ball mill causes the shaft flush by cold cooling or other reasons due to winter cooling, although welding or bonding is reduced, but the shaft tile holds slightly deformed, so that the inner diameter of the shaft tiles is small, the radius of curvature is also It becomes smaller, that is, the axial tile geometry changes, causing the shaft tile hug.
4 Ball mill shaft gas is lack of oil or other reasons, the shaft tiles and the shaft wear are very serious, and the surface of the shaft tiles produces local defects. After replacing the shaft, the local defective parts of the shaft strips and the shaft space have a gap. After the ball mill is reimbursed, the ball mill shaft is deformable, so that the curvature is small, and it will eventually lead to the shaft tile clamp.
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