10 Ton Bridge Crane Motor Heating Solution

Dec 01, 2023

The motor is the primary driving component of the 10 ton bridge crane, and it usually uses an AC motor. Because the AC motor can draw power directly from the grid, it is easy to operate and maintain, the unit is light in weight and operates reliably.

 

When selecting a 10 ton bridge crane motor, the driving power, overload capacity and heat generation of the motor should be calculated, and certain safety should be taken into consideration. Therefore, under normal use of the crane, the heat output of the motors of each mechanism will not exceed the standard requirements. If the motor overheats during use, it needs to be carefully analyzed and the fault can be eliminated before continued use. Otherwise, it may easily cause accidents such as motor burnout.

 

Grab-crane

 

Common causes of motor overheating include the following:

 

First check whether the 10 ton bridge machine is overloaded. Overload will cause the motor to heat up, and long-term overload will burn the motor. If it is not overloaded and the motor still heats up, you should check whether there is something wrong with the motor itself. For example, check to see if the motor bearings are damaged.

 

Electromagnetic-crane

 

Common causes of motor overheating and their corresponding solutions:

 

1. Winding short circuit: The motor has been used for a long time or is manufactured unqualified materials, resulting in a short circuit in the motor's internal windings and excessive current in the motor, causing the motor to overheat.

 

Solution: The motor needs to be repaired or replaced to extend the service life of the motor.

 

2. Bearing overheating: The motor bearings are worn or poorly lubricated. When the motor load is large, the heat generated by bearing friction will increase, causing the motor to overheat.

 

Solution: The motor bearings need to be inspected and replaced to ensure normal operation of the bearings.

 

3. The ambient temperature is too high: The motor has poor heat dissipation. When the ambient temperature is higher than the motor's heat dissipation capacity, the motor will overheat.

 

Solution: It is necessary to strengthen the cooling system of the motor, increase the number of radiators, or upgrade the motor.

 

4. Load changes: The motor load changes or the load is too large and the current is too large, causing the motor to overheat.

 

Solution: Analyze and control the motor load to reduce motor load changes, or use a high-power motor to increase the motor's carrying capacity.

 

5. Electrical equipment failure: Damage or looseness of electrical equipment, poor contact of electrical circuits, etc. will cause partial power supply to the motor, causing the motor to overheat.

 

Solution: Repair electrical equipment and wiring to ensure that the electrical system is working properly.

 

Hook-crane

 

It should also be checked whether the operating system of the 10 ton bridge overhead crane motor matches the level of the crane's operating organization. If the motor operating system cannot meet the frequency and time interval of continuous operation of the bridge crane mechanism, it is also one of the reasons for motor heating. The operating system of the motor should be strictly followed when using it. Check whether the brake used with the motor can be fully opened. If the braking gap is too small and the motor cannot be completely detached during operation, a great conflict will occur. Conflict heating is equivalent to adding additional load, reducing motor speed, increasing current and heating. At this time, stop the work and readjust the braking gap.

Through the above inspection, the heating problem of the bridge crane motor can basically be solved. If it still cannot be eliminated, please ask the crane manufacturer to send professionals to deal with it in time.

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