Research on Maintenance of Cylindrical Gear Reducer

It focuses on the maintenance methods and quality standards of the cylindrical gear reducer, puts forward the key points of the disassembly and maintenance management and control of the cylindrical gear reducer, introduces the relevant precautions for the disassembly and assembly of the reducer, and clarifies the methods and experience of bearing replacement, clearance adjustment, and fit clearance measurement.

Spare parts and tools ready.Before starting the construction, conduct a comprehensive inspection and check on the materials and spare parts used in the maintenance to ensure that they are in good condition and available, and conduct a comprehensive visual inspection and experiment on the maintenance tools used. Cable trays, power tools, and lifting tools are all within the inspection cycle. , and the appearance inspection is qualified, after passing the inspection, all of them will be transported to the designated location of the maintenance site for on-site inspection preparation.The maintenance site shall be managed by fixed location. Before the start of construction, the layout of the maintenance site shall be completed, and all inspection safety measures must be implemented.Construction deadline.The person in charge of the work will explain the safety precautions, maintenance quality requirements, and work progress to the staff, and enter the work site to start the maintenance work.

1. Remove the outer ring of each bearing (mark it well), lift out the high-speed shaft, medium-speed shaft and low-speed shaft of the reducer, and place them in the maintenance area.Preliminary inspection of the gear and shaft of the reducer, no cracks, broken teeth and falling blocks, and no looseness of the gear on the shaft.

2. A limited arrangement is made to check the joint of the oil seal of the shaft head frame of the reducer and the wear of the shaft surface, so as to be brushed and plated in time.The shaft surface is uniformly worn, and the wear groove is less than 0.3mm, otherwise, it should be treated.Priority should be given to checking the traces of rotation and wear of the bearing casing of the bearing hole of the reducer case body, and recording the wear of the bearing retaining ring and end cover for targeted measurement.

3. Remove the mechanical oil in the reducer, store it in a special oil tank, clean the box with kerosene, and preliminarily check the inside of the reducer (clean the oil on the ground in time to avoid people slipping).Combined with the external leakage of the reducer box, make a good mark and check the points inside the box, and there are no cracks or abnormalities.Clean the sealant on the joint surface of the upper and lower boxes of the reducer, and check the sealing surface.