Two Repair Methods of Roller Crusher after Wear and Deformat

Roller crusher equipment after a long period of work, the roller will be deformed because of wear and tear, we buy the time not only to learn to maintain maintenance, to increase the life of the roller, and to learn how to repair, teach you 2 repair simple method.

1, Method of cutting (grinding) processing in situ

Cutting (grinding) processing in situ is to install a dedicated tool holder on the frame of the crusher, which should be moved parallel to the axis of the roll. Repair the crusher, start with a manual feed mechanism (conditional can also use automatic feed mechanism) to cut the roller.

Application of this method should pay attention to the following: the knife running trajectory parallel to the axis of the roller to avoid taper after cutting, affecting the crushing effect. Control the movement speed of the roller. The speed of the roller surface should not exceed the permissible cutting speed of the cutting tool, otherwise slow down measures should be taken to avoid damage to the tool. For high hardness roller, cutting can not be processed, then you can use the grinding method according to the cutting method of grinding.

2, Method of welding in situ

Surfacing in situ is the welding of the worn at the notch. This method is simple and practical, does not affect the production, and welding parts of the hardness and wear resistance are better, the disadvantage is only suitable for good solderable roller (such as steel roll).

Welding should pay attention to the following matters: stack electrode selection to be appropriate to use heap 256 and pile 266 is appropriate. Should choose a small diameter of the stack electrode, small current welding specifications, layered surfacing, which can reduce the thermal stress, to avoid serious deformation and crack. Surfacing process, we should often use the ruler model of the surfacing site to check to ensure that the size of qualified. 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.