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Time:Aug 8th, 2018
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Common faults and maintenance methods for apron feeder’s driving device

The drive is a device that powers the traction chain. It consists of a motor, a reducer, a frame, and a drive chain. The motor is connected to the reducer. Power is transmitted to the traction chain through the two sprockets and the drive chain.
The common faults and maintenance methods of the apron feeder drive unit are as follows:
apron feeders

Failure form

cause of issue

Maintenance method

The motor doesn’t run

Circuit disconnection

Overload switch failure

Check external wiring

Reset or replace the switch

Slow start

 

Check line voltage

Excessive wear of the chain

Poor lubrication

Check lubrication parts, chain and chain support wheels with grease

Chain blocking when running

Remove obstacles and replace chains damaged by obstacles

Conveyor overload

Adjust the load to meet the design requirements

Chain is too slack

The chain lengthens due to normal wear and tear

Adjust the tensioning device, remove a chain to ensure the chain pitch

Motor heating

Unstable voltage, fuse blown

Check line voltage and replace fuse

Frequent parking

Motor bearing damage         poor chain lubrication             

Replace the motor bearing              Lubricating traction chain                    

Reducer heating

Less reducer lubricant        wrong type of lubricant         

Adding lubricant                      Lubricating traction chain                     

Reducer noise

Reducer vibrat

Lack of lubricant                 Bearing lack of oil or damage            Mounting bolt loose

Add lubricant as required

Lubricate or replace bearings

Fastening mounting bolt

Reducer oil leakage

Oil plug loose

Bearing oil seal damage

Fastening oil plug

Replace oil seal

Drive chain excessive wear

Drive chain position and sprocket is not correct

Poor lubrication

Adjust the drive chain and sprocket

Cleaning the sprocket, chain, and lubricating oil

Drive chain running noise

Drive chain gap is not suitable

Drive chain tilt

Adjust the drive chain and sprocket

Cleaning the sprocket, chain, and lubricating oil

Drive chain pulsation

Large meshing clearance, loose drive chain

Drive or traction chain wear is severe

Adjust the support rail and tension the sprocket

Replace heavily worn parts

1. The apron feeder is started under no-load condition. After 2 to 3 minutes of starting, the conveying material is added.
2. During the operation of the apron feeder, it is not allowed to clean and repair the moving parts, nor to adjust the tensioning device.
3. In the running process of the apron feeder, if encountering various abnormal conditions, press the emergency stop button in the car, and then drive after the fault is eliminated.
4. Before the apron feeder stops, the materials in the machine should be unloaded.

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