What Are The Running Torsion Conditions Of The 20 Ton Bridge Crane

What are the running torsion conditions of the 20 ton bridge crane？

The starting and braking of the crane is realized through the friction between the driving wheel and the I-beam track.
If the friction between the end beam of the crane and the drive wheel is inconsistent, it will cause the crane to toss.
The causes and treatment methods of different torsion phenomena are analyzed below.

When the 20 ton overhead crane visibly wobbles during start and stop, the operation of the drive wheel on the wobble side should be investigated.
When shutting down, the driving wheel on the swing side rotates, which can be judged to be caused by inconsistent braking on both sides.
At this moment, the motor starts synchronously without torque.
If the drive wheel doesn't spin during the wobble, it's not a brake problem, it's caused by the suspension on the side of the drive wheel.

There are two torsion phenomena during the start and stop of the crane:
 

One is that the motor side is damaged and the brake fails; the other is that the friction of the beam drive wheel is small or the suspension is unstable.
By replacing or repairing the motor and adjusting the brake, the problem of motor damage and brake failure can be solved.
 

Torsion during start-stop caused by drive wheel suspension:
One is that the convex part of the I-beam is unevenly installed, so that the I-beam track pedal cannot effectively contact the driving end of the beam wheel;
One is that there is an error in the I-beam itself.
For example, the error formed on one side of the internal gear scale is exactly the running side of the driving wheel, which also leads to poor contact between the driving wheel and the I-beam tread.
In any case, the driving wheel cannot touch the I-beam track pedal when starting, and the driving wheel cannot effectively walk, resulting in lag. When the other side walks for a certain interval, it drives the sliding side to walk.

When parking, the sliding side of the automatic wheel has stopped rolling, but the trampling contact braking effect between the automatic wheel and the I-beam is not good, and the friction is insufficient.
If the drive wheel continues to move under the effect of inertia, it will still change under the effect of inertia.
Therefore, the key to solving the torsion problem is to make the driving wheel and the I-beam track effectively contact.