What is the principle of cable drum of gantry crane?

The principle of cable drum of gantry crane is as follows:

The power part and speed regulation part of the cable reel are borne by the motor, which has unique electrical and mechanical characteristics. The motor has a wide speed range and soft mechanical characteristics. When the load changes, the working speed of the motor changes accordingly, that is, the speed decreases when the load increases and increases when the load decreases.

Moreover, the motor can run stably for a long time at any point on the mechanical characteristic curve of its torque and rotation speed, so it can ensure that the cable can obtain appropriate winding speed and tension on the corresponding drum radius.

1. The torque output by the cable winding motor is the power, which drives the drum to take up the cable through the deceleration part.

2. The output torque of the cable motor is released as a blocking force, which prevents the cable from unwinding quickly from the reel and ensures the synchronization of cable unwinding.

3. When the motor stops for a long time, it has a disc-type normally closed brake, which can ensure that the cable will not slip from the cable reel due to gravity when the motor is powered off.

Extended data

Design principle:

Cable reels can be used in two ways: horizontal pay-off and vertical pay-off.

Transverse cable installation:

1, you can go out in 1 or both directions.

2. Drag the cable or support cable off the ground on a continuous plane, and the spacing is less than1m..

3. The installation height from the cable traction plane to the center of the drum shall not exceed1m..

4, regardless of cable steering.

5. Running speed: 10m/min-60m/min.

6. The maximum acceleration can reach 0.3m/s. ..

Vertical cable installation:

1, the roller is installed at the top.