Wrong operation of bearing maintenance and repair for Roots blower
We're using it Roots blower More routine maintenance is inevitable. In fact, it's mainly about maintaining each Roots blower Parts for. For example, bearing is an important part of the fan, so it also needs to be inspected and maintained regularly.
I. appearance inspection:
1. Check whether the inner ring, outer ring, rolling element and cage are damaged;
2. Check the radial and axial clearance of the bearing to see if it meets the technical requirements;
3. Check whether the bearing rotates flexibly and whether the cage position is normal.
Tools and inspection items for root fan bearing inspection:
When checking, rotate the bearing by hand to make it rotate, then slow down and stop by itself. The bearing with good quality should rotate smoothly in the process of rotation, with slight sound but no vibration. Slow down gradually when stopping, and do not reverse after stopping. Check whether the shape and size of the rolling element are the same and whether the cage is loose
II. Maintenance method of bearing:
Clean and dry the bearings with kerosene, then check the smoothness of the surface and check for discoloration, rust, black spots, dents, scratches, spalling, cracks and other defects. If defective, replace the bearing. If you only reduce butter, you can continue to use butter.
3、 Wrong operation of maintenance
Roots blower The maintenance is not simply tightening the screws, but adding gear oil, just listening to the noise. Many old technicians who have been repairing for many years are also easy to make mistakes, let alone novices.
1. Maintenance Roots blower After the frequent failure is that the fixed end and free end of the fan bearing cover are not installed correctly.
Since there are eight parts in the fan end cover, if not carefully distinguished, the fixed end and the free end can not be distinguished. Although the layout of the two sides is roughly the same, the functions realized in actual use are different. Why is there a significant difference between the fixed end cap and the free end cap? This is because it is suitable for high temperature environment Roots blower The thermal expansion of the shaft, when the fan leaves the factory, non positioning bearings are installed at the tail. The positioning bearing needs to be strictly positioned during the installation process, and the independent bearing cannot be limited to the expansion side. Therefore, if the equipment is not correct, the stuck shaft may be free of elasticity, which is easy to cause accidents and damage the equipment. Therefore, when installing the bearing cover, the bearing end cover can be inserted into some flanges to distinguish the length of the flange. The end cap with the shortest flange is installed on the farthest side to effectively position the end cap.
2. When it is necessary to formally find a mechanic to repair the equipment, the repairman often uses the method of tightening or loosening the anchor bolt to improve the accuracy. Although this method has achieved the goal temporarily, it will not take a long time for the equipment to deteriorate.
Due to tightening or loosening the anchor bolts, the preload of all anchor bolts will be uneven. In the process of using the equipment, it is very simple to damage a single bolt due to excessive stress. In the later repair and protection, if it is tightened again, it will damage the scale of the device that has been debugged. Therefore, this method is not advisable Roots blower This kind of misunderstanding should be avoided when repairing and protecting
Roots blower It can be rotated and needs maintenance. Roots blower It's the same as a person. If you don't give him food and water, how can I work for you? Roots blower The same is true. Don't treat small problems as problems. If not timely daily maintenance and maintenance, that small problem will become a big problem, eventually leading to the fan can not be used, scrap
Wrong operation of "roots blower" bearing maintenance and repair: http://theoxfordjazz.com/xw/114.html
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