One of the effective ways to reduce the failure of Raymond mill is to check regularly, so that you can understand the use of parts and reduce the possible failures. The problems that need to be paid attention to when checking different parts are different. This article introduces the problems that need to be paid attention to when checking bearings.
The first is the quality of the bearing
For the bearing, the quality will affect its service life. If the quality is not good, it will be easily damaged in the production, which will affect the use of Raymond mill. Therefore, its quality is a key point of inspection, and its quality is judged mainly to check whether the bearing is bitten or worn, check the finish of the inner and outer rings, rolling elements, cage surface and whether there are defects such as cracks, rust, peeling, pits, heat and discoloration, and then measure whether the bearing gap exceeds the standard. And check whether the bushing for wear, pits, peeling, if yes, then the Raymond mill needs to replace the new bearing.
Followed by the bearing cooperation
The cooperation of the bearing will also affect the work of the Raymond mill. The cooperation mentioned here refers to the inner diameter of the bearing and the cooperation of the shaft, the outer diameter and the outer casing. If the fitting is too loose, the mating surface will wear due to the relative sliding generated, and thus the damage the shaft or the outer casing, and the powder generated by the wear phenomenon will invade the inside of the bearing, causing the heating, vibration and damage of the bearing. In addition, when the Raymond mill bearing is too large, the diameter of the outer ring will become smaller or the inner diameter of the inner ring will become larger. To reduce the internal gap of the bearing, it is necessary to make timely adjustments for the above-mentioned coordination problems.
Again, the gap of the bearing
If the gap of the Raymond mill bearing is too narrow, which will cause the friction loss of the oil in the gap to be excessive and the oil quantity to decrease. These phenomena will increase the bearing temperature, but if the gap is too wide will change the dynamic characteristics of the bearing and reduce the stability of rotor operation. So the gap of Raymond mill bearing needs to be set according to the type of equipment and the conditions of use.
14th Sep 2018