Cleaning Method Of Fan Impeller In Coal Mine

The coal mine fan impeller is easy to attach paint dirt, which causes the impeller to be out of balance and vibrate, so the impeller needs to be cleaned regularly. Here's how to clean the coal mine fan impeller. (1) In the manufacturing and processing stage, the clearance between the shaft hole and the transmission shaft should be increased for the convenience of disassembly and assembly. Of course, the difference between the two diameters should not be greater than 0.5mm, otherwise the normal operation of the impeller will be affected. (2) The impeller can be cleaned thoroughly by removing the impeller. It can be cleaned by solvent or by burning. The impeller can be removed by a small puller. However, when some fans are manufactured, the shaft hole drive shaft is processed according to the standard. After a period of operation, the shaft hole and shaft lock up, which is difficult to remove. This requires the use of a larger Jack to remove, (3) measure the two on the impeller hub Diameter m of the mounting holes and spacing n of the two holes. More than 20t jack, two anchor bolts, diameter less than m, a piece of thick steel plate with length or diameter greater than 1.5 times n (not less than 20mm thickness).