The solution to the problem of motor bearing running sleeve. The rolling bearing runs inside and outside the outer ring, that is, the rolling bearing runs on the inner and outer rings. The so-called rolling bearing running ring failure is also a common problem during the operation of rolling bearings. Next, Xiaobian will talk about it in detail based on the knowledge of bearings Specific solutions to the running sleeve problem.

(1) After the rolling bearing running sleeve problem occurs, some areas may be repaired by surface sealing and punching on the surface of the rolling bearing chamber, but this will lead to low concentricity of the rolling bearing and frequent disassembly and assembly of the motor. It is troublesome, and will still damage the rolling bearing and cause damage to the motor, which cannot completely solve the problem of the rolling bearing running sleeve. At present, the most frequently used and effective methods are filling and repair welding. The filling sleeve is used when running the outer sleeve, and the repair welding is used when running the inner sleeve. This method can not only ensure the repair quality, but also prolong the operation of the motor. cycle.

(2) Actual operation. When the rolling bearing runs out of the casing, the first step is to disassemble the motor, clean the end cover of the running casing, measure the depth of the rolling bearing chamber and record the data, and then draw the processing drawing according to the outer diameter of the rolling bearing. In order to ensure that the machined hole is round and conforms to the standard, it is necessary to fix the end cover of the motor on the chuck of the lathe for alignment, and then expand the rolling bearing chamber of the original rolling bearing to 6-10mm. After that, the sleeves are processed according to the dimensions of the outer ring of the rolling bearing and the inner ring of the rolling bearing, and then inserted into the end cover by cold fitting. In the process of inserting the end cap, it should be noted that when the processed sleeve is put into the metal container and immersed in liquid air, it should be completely submerged, and it should be cooled for ten minutes before inserting. requested size. When the inner sleeve of the rolling bearing occurs, the processing drawing should be drawn first, and then the repair welding method should be used to repair it. The journal should be cleaned before repair welding. In order to ensure the quality of repair welding, the symmetrical welding method is usually used, and the welding current is controlled at 100A. It is cut according to the pre-drawn processing drawing.