Disposal measures and preventive measures for common faults of electric hoist of single beam crane

Electric hoist is a commonly used lifting device for electric single-beam cranes . If the electric hoist fails, it will seriously affect the normal operation of the single-beam crane. The editor will introduce the handling measures and preventive measures for common failures of the electric hoist of single-beam cranes. Learning reference.

1. Disposal measures and preventive measures of electric hoist car

1.1 Disposal measures for electric hoist car

1.1.1 Press the emergency stop button immediately to cut off the power supply of the electric hoist;

1.1.2 Take protective measures to prevent the load from continuing to fall;

1.1.3 Remove the load safely;

1.1.4 Carry out a comprehensive overhaul of the equipment, and continue to use it after troubleshooting.

1.2 Preventive measures for electric hoist rolling

1.2.1 Use wire ropes that meet the load-bearing capacity to carry the load, and it is prohibited to use electric hoists to directly carry the load;

1.2.2 Strengthen maintenance and overhaul

2 Disposal measures and preventive measures for wire rope breakage

2.1 Disposal measures for wire rope breakage

2.1.1 Press the emergency stop button immediately to cut off the power supply of the electric hoist;

2.1.2 Replace the steel wire rope (chain) and conduct a comprehensive overhaul of the equipment;

2.1.3 After confirming that the equipment is fault-free, it can continue to be used.

2.2 Preventive measures for wire rope breakage

2.2.1 Use wire ropes that meet the load-bearing capacity to carry the load, and it is forbidden to use electric hoists to directly carry the load;

2.2.2 Use electric hoist with proper rated load;

2.2.3 Replace the excessively worn wire rope in time.

3 Disposal measures and preventive measures for flushing

3.1 Disposal measures for flushing

3.1.1 Press the emergency stop button immediately to cut off the power supply of the electric hoist;

3.1.2 Overhaul the upper limit of the equipment, and resume operation after confirming that the fault is eliminated.

3.2 Preventive measures for flushing

Strengthen daily maintenance and overhaul.

4 Disposal measures and preventive measures for rewinding

4.1 Disposal measures for rewinding

4.1.1 Press the emergency stop button immediately to cut off the power supply of the electric hoist;

4.1.2 Overhaul the lower limit of the equipment, and resume operation after confirming that the fault is eliminated.

4.2 Preventive measures for rewinding

Strengthen daily maintenance and overhaul.

5 Disposal measures and preventive measures that cannot be started

5.1 Disposal measures that cannot be started

5.1.1 Check whether the electric hoist power supply is effectively connected;

5.1.2 Check whether the electric hoist operating device is in good contact;

5.1.3 After finding out the above reasons, repair them in time.

5.1.4 If the cause cannot be found, replace the electric hoist.

5.2 Preventive measures for failure to start

Regularly check the cable connection plug and operation control device.

6 Disposal and preventive measures for jamming during operation

6.1 Measures to deal with jams during operation

6.1.1 Check whether the electric hoist power supply is effectively connected;

6.1.2 Check whether the electric hoist operating device is in good contact;

6.1.3 After finding out the above reasons, repair them in time.

6.1.4 If the cause cannot be found, replace the electric hoist.

6.2 Preventive measures during operation

Regularly check the cable connection plug and operation control device.

Methods and steps for investigating electric hoist failures and causes of accidents

(1) Protect the scene;

(2) Investigate and visit carefully;

(3) Check the scene carefully;

(4) Cooperate in technical appraisal;

(5) Cooperate with the analysis and identification of the cause, identify the cause of the failure and the accident, including the time of the failure and the accident, the location of the failure and the accident and the point of the failure and the accident, the nature and responsibility of the failure and the accident.

When using a single-beam crane, pay attention to whether the electric hoist is operating normally, and do a good job of maintenance of the electric hoist in order to ensure the normal use of the crane.

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