Roll repair of roller crusher

Roller crusher, also known as roller crusher, double roll crusher. Use has been more than two hundred years of history, in the constant replacement, the roller crusher technology has reached an unprecedented maturity. After a long period of use, the roller crusher roll surface may be subject to certain damage, this time, you need to roll the crusher to repair the surface, the roller crusher roller repair method is as follows:

First, the local cutting method
Install a special tool holder on the rack of the roller crusher. Repair the crusher, start with a manual feed mechanism (conditional can also use automatic feed mechanism) to cut the roller. Precautions:
(1), control the movement speed of the roller. The speed of the roller surface should not exceed the permissible cutting speed of the cutting tool to avoid damage to the tool.
(2), for high hardness roller, if the cutting can not be processed, grinding can be used for grinding.
(3), the tool path is parallel to the axis of the roller, so as not to appear after cutting taper, affecting the crushing effect.
Second, the local welding method
Welds are filled in the worn groove. This method is simple and practical, does not affect the production, and the welding parts of the hardness and wear resistance are better. Precautions:
(1), select the small diameter of the stack electrode, small current stratified surfacing. This reduces thermal stress, avoids severe deformation and cracks.
(2), welding machine to ride directly on the roller, do not ride on the shaft, so as not to flow through the rolling bearing, spark, so that the rolling bearing and raceway surface burned.
(3), surfacing process, we should often use the ruler model to check the welding site to ensure that the size of qualified.
The above is the roller crusher roller surface repair method, hoping to use the roller crusher users to bring some help.

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