Gantry crane troubleshooting method
The gantry crane is composed of wheel set, hook set, drum set, motor, reducer and other accessories. The fault that easily occurs during use is the gnawing. Yuantai gantry crane manufacturer briefly introduces the hazards of gantry crane gnawing rails:
Rail gnawing will aggravate track wear, increase running resistance, reduce the service life of wheels, and seriously damage the beam structure, and even cause derailment accidents.
There are many reasons for the formation of gnawing tracks, mainly as follows:
1. The track surface is faulty. Oil stains or snow on the track surface have not been cleaned up in time.
2. Corrosion and deformation of metal structure, especially for gantry cranes used outdoors, due to corrosion and deformation, the diagonals of large and small car frames are out of tolerance. Long-term use causes the bridge to run in a diamond shape, causing wheels to gnaw on the rails.
3. Poor installation accuracy of wheels of large and small vehicles. The horizontal and vertical deflection of the wheel is too bad, and the wheel track has too much pressure per unit area due to wear, which leads to uneven wheel wear and rail gnawing.
4. The speeds of the motors at the two ends of the drive are not equal, and the braking torques of the brake shafts at both ends are different, resulting in inconsistent wheel speeds on both sides, unsynchronized operation, and causing rail gnawing.
Solution to the failure of the gantry crane operating mechanism:
Eliminate the influence of oil pollution or ice and snow on the track; adjust the size of the car track to make it meet the installation technical requirements; check the transmission chain connection, bolt connection, gear coupling engagement and other conditions, eliminate excessive gaps, and make the two ends drive consistent; adjust the wheels Installation accuracy, if L and h are the horizontal and vertical measurement chord length respectively, make the horizontal deflection less than L/1000 and the vertical deviation less than h/1000; change the starting method of the motor or replace it with a wound rotor motor, check to ensure that the two electric Synchronize.
