Bridge crane common troubleshooting methods

Dec 9th,2024 1218 Views

In the process of using the bridge crane, it is inevitable to encounter some problems and cannot operate normally. For you to list common crane fault treatment:

1, brake failure to stop the car: repair electrical parts; Replace the brake lining; Replace the tired main spring and adjust the brake according to technical requirements.

2, the brake can not be opened: clear the block; Adjust the main spring to meet the standard; Adjust or replace the brake screw; Replace the coil.

3, the brake lining appears burnt smell, smoke, and the lining wears rapidly: adjust the brake to achieve uniform clearance, and the lining can be removed from the brake wheel during operation; Replace the auxiliary spring; Trim the brake wheel face.

4, the braking torque is unstable: adjust the concentricity to make it consistent.

5, hook group fall: immediately repair the rise limit; Overload is strictly prohibited; Replace the new rope.

6, hook head tilt rotation is not flexible: replace the thrust bearing.

7, the reducer periodic flutter and sound: replace the damaged gear.

8. The reducer vibrates on the bridge, and the sound is too large: tighten the bolts; Adjust the concentricity to meet the standard; Reinforce the support structure to increase its stiffness.

9, the car running when the slip: adjust the high and low position of the wheel shaft, increase the wheel pressure of the driving wheel; Adjust the elevation difference of the track.

10, big wheel gnawing rail: check the transmission shaft key connection, gear coupling mesh, bolt connection of each part, eliminate excessive gap, so that both ends of the transmission coordination; Adjust wheel installation accuracy: Adjust the cart track.

11, the motor overheating during operation: reduce the crane starting frequency, reduce the load or replace the motor consistent with the type of work.

12. The motor vibrates during operation: replace the damaged bearings.

13, the controller in the work of blocking phenomenon: replace the contact.

14, the main contactor does not draw the reason: the power supply has no voltage; The fuse is off; The controller handle is not in the zero position; The emergency switch and the interlocking contacts are not closed; Main contactor coil is burnt out.

15, the reason for the single direction of the car: the limit switch is in poor contact and the line segment is broken; The corresponding interlocking contact in the controller is not in good contact or disconnected; The commutator coil or the auxiliary normally closed contact is not in good contact.

16. The reason why the auxiliary hook can not rise: the rise limit switch is disconnected; Poor contact; Slip wire breaks.

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