How To Solve The Problem Of Motor Heating Of Double-Girder Bridge Crane?

Double-girder bridge crane maintenance refers to the technical work performed to restore the function of the equipment after the technical condition of the equipment has deteriorated or failed. This processing method is relatively passive, and it is not known when the double-girder bridge crane will malfunction. The disadvantages of passive maintenance are obvious, such as interruption of production plans, uncertainty of maintenance time and cost. It is often encountered that the maintenance fee of the bridge machine exceeds the limit approved by the leader, resulting in extended maintenance time. In fact, maintenance is a relatively primitive equipment management system that is only suitable for some small equipment.

Next, I will briefly introduce and explain several reasons and solutions for motor heating, and give you some suggestions for maintaining the crane.

Causes of motor heating in double-girder bridge cranes

1. The motor of the double-girder 15 ton overhead crane generates heat because there is no lubricating oil in the bearing, which will cause the motor to heat up. Bearings lacking lubricant can cause noise and vibration, which can cause the motor to heat up. This will also cause the rotating shaft to bend, and incorrect positioning of the frame, rotor and end cover will cause the cavity to clear, which can easily cause the motor to heat up or even burn out. When it is found that the bearing is short of oil, lubricating oil should be added immediately to make the bearing run smoothly.

2. Because the high voltage of the power supply will cause the motor to heat up and produce a buzzing sound. High voltage for a long time will burn out the coil, so the power supply of the electric hoist should be equipped with a transformer and continuous protection.

3. When dust and debris enter the motor, the insulation performance of the motor will be reduced. When there are debris in the air gap between the stator and rotor, the motor will sweep through the air chamber, causing insulation wear of the motor windings. In severe cases, the engine may even be scrapped. Our company recommends cleaning the motor frequently.

4. Overloading the motor will also cause the motor to heat up. Under intense production tasks, electric hoist cranes operate 24 hours a day, which is very harmful to the motor. It will not only cause the motor to heat up, but also affect the service life of the motor.

Therefore, no matter what kind of mechanical equipment cannot be overloaded for a long time, necessary rest must be given.

How to maintain double girder overhead crane?

The maintenance of double-girder bridge crane mainly involves the disassembly, inspection and adjustment of its main components. It is a planning method for equipment management that allows components that have reached specified wear limits to be replaced when necessary. Ordinary production units should conduct regular or irregular inspections and maintenance of equipment according to its usage. The difference between overhaul and minor repair is that when production tasks are not tight, a certain maintenance time can be actively arranged. Double-girder bridge cranes are special equipment, and repair projects should be organized and implemented by professional construction units.

Double-girder bridge machine inspection is a scientific management method that can timely grasp the operating status of the equipment and guide maintenance work. Inspect and monitor equipment, discover equipment aging and hidden danger information, analyze the reasons, take measures to improve, treat equipment maintenance as preventive maintenance, and eliminate hidden dangers in equipment management methods. Lifting equipment is mainly inspected by the user, and hidden dangers are recorded as a key report for the next maintenance.

In terms of management of double-girder bridge cranes, manufacturers recommend users to "inspect inspections, repair more, and repair less." That is, daily operators must conduct spot checks on lifting equipment. For crane maintenance units, attention should be paid to maintenance work to eliminate faults. Reduce the number of passive maintenance and ensure safe production.