In the design process of the hoist, it is necessary to avoid the phenomenon of wire rope disorder and rope biting. A hoist with a cam rope mechanism is proposed.

The drum is the key design component. The traditional design method is mostly based on experience. thickness.

 

The motor is an important part of the hoist, and it is also the most expensive part in the hoist. If it is damaged, the repair or replacement cost will be very high.

So here to remind customers to take good care of the hoist or winch motor. The maintenance methods are as follows:

 

1. The operating environment should always be kept dry, the surface of the motor should be kept clean, and the air inlet should not be obstructed by dust, fibers, etc.

 

 

2. When the thermal protection of the motor continues to operate, it should be ascertained whether the fault comes from the motor or the overload or the setting value of the protection device is too low.

After the fault is eliminated, it can be put into operation.

 

 

3. The motor should be well lubricated during operation. The general motor runs for about 5000 hours, that is, the grease should be added or replaced. When the bearing is overheated or the lubrication is deteriorated during operation,

the hydraulic pressure should be replaced in time. When replacing the grease, remove the old lubricating oil, clean the oil grooves of the bearing and bearing cap with gasoline, and then fill 1/2 of the cavity between the inner and outer rings of the bearing with ZL-3 lithium-based grease (for 2 poles) And 2/3 (for 4, 6, and 8 poles).

 

 

4. When the life of the bearing is over, the vibration and noise of the motor will increase significantly. Check that the radial clearance of the bearing reaches the following value, and the bearing should be replaced.

 

5. When disassembling the motor, the rotor can be taken out from the shaft extension end or the non-extended end. If it is not necessary to remove the fan, it is more convenient to take out the rotor from the non-shaft extension end. When pulling out the rotor from the stator, prevent damage to the stator winding or insulation.

 

 

6. When replacing the winding, you must write down the form, size, number of turns, wire gauge, etc. of the original winding. When you lose these data, you should ask the manufacturer to change the original design winding at will, which often results in one or several performances of the motor. Worsened, even unusable

 

 

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