Form and position tolerance meet the requirements. After repair, the hole tolerance and center distance tolerance directly affect the noise and temperature of the coal banana screen vibrator. The tolerance of center distance directly affects the meshing accuracy of gear. If the difference is added, the gear backlash will be large and the noise will be large. If the difference is reduced, the gear backlash is small and the noise is small. The tolerance of the hole affects the radial clearance of the bearing. If interference fit, the clearance is reduced and the noise is reduced. If excessive matching, clearance changes little, bearing noise becomes larger). (5) Proper installation method. Before installation, all parts and the interior of the box should be cleaned to ensure that the lubricating parts, oil holes and oil pipes are free of sundries; When coal banana screen bearings are assembled, special tooling needs to be made to ensure that the inner ring or outer ring is evenly compressed and assembled in place during bearing assembly, so as to prevent the uneven stress of the inner and outer rings during assembly);
The combination surface of the box and the end cover should be made of sealant to ensure that there is no oil leakage: after the bearing assembly, it should operate flexibly, and the eccentric block should be able to swing freely by hand; There shall be no abnormal noise in the box during the test run. After continuous operation for 8h, the highest temperature of the bearing shall not exceed 60℃; vibrator anchor bolts and nuts can only be used once. They must be replaced after being fastened and removed. (6) Reduce the disturbance in the vibration process. Every 200h after operation, check the tension degree and good condition of the triangle belt; Every 500h after operation, check the degree of bolt fastening of the vibrator;
Check and clean the universal head every 500h after operation; After each stop, clean up the coal deposit of spring and check the good condition of spring; Start before feeding, avoid starting with material.
By discussing the common fault analysis, fault judgment and daily maintenance methods of coal banana screen, the maintenance of coal banana screen vibrator is a continuous work, only in the actual work constantly summarize and analyze the cause of the fault, and take targeted preventive measures, do a good job of maintenance work, In order to ensure the safe operation of the linear vibrating screen. Only by deeply understanding the performance of equipment and mastering the running status of equipment, can maintenance workers be fundamentally changed as management work and the level of mechanical and electrical maintenance in coal washing plants be improved.
