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Regular medical examinations for the reducer

Mar 24, 2020

Regular medical examinations for the reducer


Regular check-ups for the reducer. Lubricating oil should be applied to the mating surfaces of the worm gear and shaft, and the bearing and shaft. If the worm gear is assembled, the worm wheel ring should be press-fitted on the hub and tightened. To install the worm gear on the shaft, two methods are commonly used: press-fitting and heating.


Install the worm gear shaft assembly into the casing, and then install the worm into the casing. The axis of the worm should be aligned with the middle plane of the worm. The deviation should meet the requirements. Bearings and shaft shoulders, bearings and glands are suitable for assembly. After compression, the rotation should be flexible. After assembling the worm drive mechanism, its transmission flexibility needs to be checked. The worms at any position should have basically the same rotational torque.


1. Remove the worm gear reducer Remove the belt cover, V-belt, pulley, remove the coupling, bolt, and suspend the motor. Remove the bolts at both ends of the worm and the bolts on the split surface of the reducer, lift the upper cover of the casing and place it on the rubber plate. To prevent damage to the middle split surface, clean the upper cover, and check whether the fastening bolts leak oil. Remove the lubrication system Remove the worm gear lock nut, use special tools to remove the worm gear, and check the worm gear and worm meshing, including contact area, position, wear and so on. Remove the oil seal, clean the case, and check and handle the middle split plane.


2, check the worm gear, worm gear Worn gear, pitting, gluing (adhesion and tear) is serious, you can replace or use a modified worm gear method to repair the worm gear, reconfigure the worm gear. Worm gears, worm tooth surfaces are lightly glued, pitting and individual tooth surfaces are defective, and can be repaired by milling, scraping and grinding after welding.


3, the shaft journal wear can be repaired by spraying, brushing, grinding after plating. The keyway on the shaft is damaged, and the keyway can be reprocessed at a phase of 120 ° from the original keyway.


4. Reducer assembly Before assembly, clean the parts, deburr, and check the size, geometry, accuracy, surface roughness, etc. according to the requirements of the drawing.


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