Winch common fault handling method

The main reasons and treatment methods for the abnormal noise of the winch drum:
   1. The main cause of abnormal noise in the winch drum
    (1) The drum shell bolts are loose
    (2) The gap between the cylinder shell and the support wheel (flange) is too large.
    (3) The drum casing is cracked.
    (4) The welding shell is opened for welding.
    (5) The fixing screws of the swimming roller and the bushing are loose, causing relative sliding between the swimming roller and the bushing.
    (6) The gap between the bushing and the main shaft is excessively worn.
    (7) The worm gear screw clutch is loose.
   2. Processing method
     According to the inspection situation, determine the processing method. For loose nuts, etc., it can be tightened when the handover shift is stopped; if the sound is not serious, the winch load can be appropriately reduced, observe and observe, and repair until the specified shutdown maintenance; if the sound is serious, stop repair immediately. Or replace it to prevent the accident from expanding.
The hazards, causes and treatment methods of the wire ropes on the hoist drum
   1. The hazard of the wire rope on the winch drum is not neatly arranged
    (1) Accelerate wire rope wear. When the wire rope is tangled on the drum, the traction force rope is often squeezed out in the messy rope and pressed in again, causing serious wear, resulting in the grinding of the wire rope diameter and the broken wire, shortening the service life of the wire rope.
    (2) Cause the wire rope to slide out of the drum. The wire ropes are not arranged neatly, which will inevitably lead to pile-up phenomenon and damage the rope guard. When the pile height exceeds the edge height of the drum, the wire rope can easily slide out of the drum, the light is broken, and the heavy rope is broken.
   2. The main reason why the wire ropes on the winch drum are not arranged neatly
    (1) The winch is not properly arranged, that is, the hoisting angle of the lifting wire rope does not meet the requirements.
    (2) The winch balance wheel (guide wheel) is short of oil and cannot slide left and right as the wire rope is wound on the drum.
    (3) The winch rope arranging device has failed or has been removed.
    (4) Improper operation, winding is not tight.
   3. Processing method
     According to different situations, symptomatic treatment. If the installation quality and the failure of the rope-removing device are invalid, it shall be reported in time to request the dispatcher to handle it. If it is improperly operated or maintained, it must be carefully operated and maintained according to the regulations. The inclined lane winch should pay special attention to clear the obstacles in the way to prevent the weight from being lowered. When the object is tight, the wire rope is loose.
Causes and treatment methods for abnormal noise and vibration during operation of winch reducer
   1. The main cause of abnormal noise and vibration during operation of the reducer
    (1) The gear meshing clearance is too tight or too loose.
    (2) The bearing clearance is too large. Generally speaking, the sound is loud when the air is unloaded, and the sound is small when the heavy load is raised.
    (3) The reducer or bearing bolt is loose.
    (4) Foreign objects are lost in the reducer.
   2. Processing method
    (1) Adjust the gear meshing clearance to the proper position. If the wear is serious, the gear should be replaced.
    (2) Repair or replace the loose bearing.
    (3) Pay attention to tighten the loose screws.
    (4) If any foreign matter falls into the reducer, stop it immediately and eliminate the malfunction.
Causes and treatment of heating of winch brake
   1. Reasons for the heating of the winch brake
    (1) Use the brake too early, too much, too strong.
    (2) The brakes are often used when the heavy objects are lowered. The winch does not have an electric power brake system. This is often the case with single drum winches.
    (3) The brake shoe bolt is loose or the brake shoe is excessively worn, and the bolt head touches the brake wheel (or brake disc).
    (4) The brake shoe and the brake wheel (or brake disc) are not installed correctly, and the contact area is too small.
    (5) The brake wheel (or brake disc) swings a lot.
   2. Prevention and treatment methods
    Continuously sum up the operating experience, explore the operation method, and improve the level of operation technology; Strictly Chapter 5 Scheduling the safe operation of the winch, check and maintain the traction load, and prohibit the winch motor from being sent by the brake when the load is lowered; check and maintain frequently. Pay attention to the contact between the brake shoe and the brake wheel (or brake disc).

Ningbo Hipower Precision Technologies Co., Ltd.