What measures should be taken to address abnormal loads in the WH series worm gear reducer

Immediately stop the machine and cut off the power: If any abnormal load is found (abnormal noise, severe vibration, temperature rise exceeding 85 ℃), immediately cut off the power supply, hang maintenance signs, strictly prohibit continuous operation with faults, and avoid irreversible damage such as worm gear adhesion and motor burnout.

Cut off power connection: Disconnect the coupling between the reducer, motor, and load end, completely isolate the power source, and prevent safety accidents caused by accidental starting.

2、 Troubleshooting and elimination of load side faults

Check for jamming and foreign objects: manually rotate the load side to check for mechanical jamming, material blockage, rust on the guide rail, etc., clean up foreign objects, repair jamming components, and eliminate direct overload sources.

Check the matching degree of load torque: Use a torque meter to measure the required torque of the load, compare it with the rated output torque of the reducer, ensure that the actual torque does not exceed 80% of the rated value, and reserve a safety factor of 1.2-1.5 times.

Dealing with impact/fluctuating loads: If there is a sudden increase or decrease in the impact condition of the load, install an elastic buffer coupling to prevent the instantaneous torque peak from exceeding the bearing limit of the reducer.

3、 Transmission system status verification

Check the meshing status of the worm gear: Open the box and inspect the tooth surface. If there is pitting, bonding, or wear exceeding 0.3mm, replace the worm gear; Slight wear can be repaired by laser cladding on the tooth surface, and the mesh clearance can be re measured to be controlled within the range of 0.15~0.3mm.

Verify the accuracy of bearings and shaft systems: Check the clearance of bearings. If the axial clearance exceeds the standard range of 0.03~0.15mm, replace the original bearings of the same model directly; Correct the coaxiality of the shaft system, with a radial deviation of ≤ 0.05mm, and eliminate transmission jamming resistance.

Troubleshooting installation accuracy deviation: Recheck the center distance of the worm gear, adjust the meshing contact spot to a tooth surface ratio of ≥ 70%, and avoid abnormal overload caused by local stress concentration.

4、 Optimization and adjustment of lubrication system

Check the oil quality and level: If the oil is emulsified, mixed with metal debris, or the viscosity decreases, thoroughly drain the old oil, rinse the inside of the box with kerosene, add L-CKE 220 # worm gear special extreme pressure oil, and control the oil level at the center line of the oil window.

Adaptation of lubrication strategy for working conditions: Upgrade to forced oil injection lubrication under heavy load and high temperature conditions, regularly sample and test the oil quality every 300 hours, and change the oil immediately if blackening or turbidity occurs to avoid lubrication failure exacerbating friction loads.