How to deal with abnormal noise of gantry crane wire rope electric hoist

When using the gantry crane wire rope electric hoist, there will inevitably be some problems. If we knew some of its solutions and product precautions beforehand, it would definitely save some trouble.

1. When the gantry crane wire rope electric hoist is running, there will be abnormal noises. Usually, this is caused by a glitch in the control device. The location, height and sound of these noises will vary depending on the cause of the problem. Identify the location of the noise, find and fix the problem.

2. If the motor makes abnormal noise, it should be stopped immediately to check whether the motor is single-phase operation or whether the bearing is damaged, whether the coupling shaft is correct and the "cleaning" fault, which will cause the motor to produce abnormal noise, different faults The orientation and the level and level of harmony, please be consistent, when single-phase operation, the entire electric machine emits a regular "hum" sound.

3. When the bearing is damaged, there will be a "humming" sound of "clack-clack" in the vicinity of the bearing. The reducer makes an abnormal noise, and the reducer is faulty. At this point, machine viewing should be suspended. First, confirm the reducer of the reducer.

4. Or whether to lubricate the bearing before use, and whether to replace the lubricating oil regularly during use. If it is not smoothed as required, the reducer will not only produce an excessive "humming" sound, but also the sliding distance during braking exceeds the specified requirements. more, which reduces brake spring pressure and braking force.

5. Check whether the gantry hoist is overloaded. Overloading can cause the motor to heat up. Prolonged overloading will burn the motor; if the motor is not overloaded, it will still heat up. Check the motor bearings for damage. It is also necessary to check whether the motor operates according to the specified operating system, which is also one of the reasons for the heating of the motor. When using, the operation should be carried out in strict accordance with the motor operation system.

6. When the weight rises to mid-air, it cannot be restarted after abort. First check whether the system voltage is too low or whether the fluctuation is too large. The contacts of the contactor are soldered. When the stop switch is pressed, the contacts of the contactor cannot be disconnected, and the gantry crane motor wire rope electric hoist will not stop when it is still energized. If the limiter fails in the extreme position, the hoist will not stop.