Bean processing equipment has its own operation manual. In daily operation and maintenance, we should abide by its manual. Bean processing equipment consists lots of parts, and bearing is the vulnerable part of bean processing equipment. Now, let’s talk about bean processing equipment vulnerable part.
 

When the inner bearing and the rolling element have serious damage, then they need replacement. When the bearing has abrasion, we can adopt welding tractor method to repair BEAN PROCESSING EQUIPMENT VULNERABLE PART. Before welding, we should preheat the bearing and the inner bore of the end cap to 150-250℃. We usually adopt J507Fe welding rod. The inner bore of the end cap usually uses electrode for cast iron. After welding, we should bury it into the dry lime powder for cooling to avoid cold brittleness. During welding and repairing, we should pay attention to the following points:

1) The concentricity adjusted value is no more than 0.015mm to avoid increasing noises and heating vibration during high-speed running.

2) When the motor journal <40mm, it is suitable to adopt 6-8 equal parts line shape overlaying method. When the motor journal >40mm, it can adopt full overlaying method. This is decided by the bearing transmission force under the output power. No matter which kind of overlaying method, it should adopt interrupted electrode manipulation and symmetry welding in case of too large welding stress and big change of concentricity.

3) In lathe processing, the roughness of the motor shaft turning should be around 3.2 under 11KW. We can use grinder for fine processing after 11KW motor shaft turning so as to ensure the quality. When the rotor and the roller separate, we can use heat resisting 502 adhesives to process the clearance between the rotor and the roller. Then we use 40% saline to irrigate it again. After several days of airing, it can be assembled.

In operatin and maintenance, we should pay attention to the above points about bean processing equipment vulnerable part, because the correct operation and maintenance of the vulnerable part can prolong bean processing equipment service life.