Sheet pre-treatment line manufacturers fault analysis!
A, the equipment appears abnormal sound
Failure analysis: 1. Collision sound occurs when idling, generally is the sound of blade high-speed operation and protective lining plate friction issued by each other.
2. After running, join the projectile sound, generally is the directional sleeve and the splitting wheel is not the center, splitting wheel eccentric. With the directional sleeve or projectile into the tube end surface extrusion sound.
Troubleshooting: 1. should stop, open the shield repair side shield gap so that it is not less than 5mm, or adjust the directional sleeve and the location of the shot wheel, so that concentric.
2. Should stop, remove the introduction of the tube, check the shot wheel, so that the directional sleeve and the shot wheel concentric, directional sleeve, shot wheel, the clearance between the projectile into the tube should be guaranteed for the larger projectile diameter of 2-2.5 times.
Second, low cleaning efficiency
Failure analysis: 1. The projectile sector projection angle is not aligned with the need to clean the cleaning workpiece.
2. Insufficient supply of projectiles, cleaning time dragged out.
3. Projectile impure or mixed into other impurities, blocking the projectile channel.
4. Directional sleeve outlet wear is too large.
5. The shot wheel wear is too large, reducing efficiency.
6. The projectile contains too much waste sand and dust.
7. Slackening of the belt of the blast head, so that the wheel is below the rated speed, reducing the volume of shot and projectile function.
Troubleshooting: 1. Adjust the window position of the directional sleeve, so that the projectile can be accurately shot to clean the workpiece.
2. Add enough projectiles and check the projectile circulation system.
3. Clear the magazine in the projectile, and pass the sieve before adding the projectile.
4. Regularly check the directional sleeve, and replace it in time if it is worn out seriously.
5. Regularly check the pellet wheel, and replace it in time when it is worn out.
6. Dredge the dust removal system pipes to improve the efficiency of dust absorption and sand separation.
7. Adjust the blast head belt, so that the rated speed of the wheel.
Three, serious vibration in operation
Failure analysis: 1. Blade wear serious, so that the blade appears serious bias.
2. Blade and combined with the disk connected to the two combined surface is not tight, screw fixation is not uniform, blade deflection.
3. directional sleeve loose, and blade rubbing, serious when broken blade.
Troubleshooting: 1. Should check the blade wear situation, change the blade. The weight difference of each blade shall not exceed 4g, in the same diameter, the weight difference of two blades shall not exceed 3g.
2. pay attention to the installation, blade and combined with the disk combined surface to be tight, screw fastening to be uniform.
3. Adjust and fix the directional sleeve, so that it is concentric with the blade, split shot wheel.
Four, the bearing temperature is too high
Failure analysis: 1. bearing lack of lubricant.
2. grease is too much, when grease filled with the entire bearing space, bearing operation forced lubricant in the ball between the sharp string, friction generated a lot of heat, resulting in bearing heat.
Troubleshooting: 1. Use No.2 calcium-based lubricant to lubricate on time.
2. The amount of lubricating oil should be appropriate, generally 1/3 of the bearing space.
Five, the motor is hot
Failure analysis: 1. The operation of the blade friction guard or shield, so that the motor overload.
2. The supply of pills is too large, so that the motor overload.
3. Power system failure to make the motor but phase, the motor sound abnormal.
4. The motor itself is faulty.
Troubleshooting: 1. The gap between the blade and the guard should not be less than 5 mm.
2. The amount of pellet supply should be carefully adjusted, and the pellet supply valve should be fixed in a certain appropriate position.
3. Should immediately stop to check the power failure.
4. Overhaul the motor.
Six, the projectile cycle is not smooth
Failure analysis: 1. Lift machine belt slack, so that lift the belt slippage.
2. The projectile storage bin has holes. Make the projectile cycle volume reduced.
3. Projectile recovery scraper wear.
4. The projectile conveying tube is clogged due to projectile clumping.
5. The screw conveyor is stuck.
6. Too many impurities in the roller sieve block the sieve holes and affect the projectile sieving.
7. The iron bucket on the lifting belt in the elevator is excessively worn or the iron bucket falls off.
Troubleshooting: 1. Adjust the bolts on both sides of the drum on the hoist to make the belt tighten.
2. Check the loophole of the projectile circulation system and repair it.
3. Replace the scraper or adjust the scraper gap.
4. Dredge the pipeline, replenish and add the projectile should be over the sieve, pay attention to the equipment base protection.
5. The bearings at both ends of the spiral conveyor are stuck due to dust or pellets, so that the spiral conveyor can not run, the bearings need to be replaced, and pay attention to sealing the bearings.
6. Clean the impurities in the trommel screen frequently.
7. Replace the lifting belt, or repair the belt, and match the iron bucket.
Seven, poor separation of pill sand
Failure analysis: 1. Separator ventilation is not enough.
2. Separator pill sand quantitative valve adjustment is not appropriate, pill sand can not form a certain requirement of pill sand thin curtain.
3. Separator, separation sieve has debris blockage.
Troubleshooting: 1. Equipped with sufficient air volume of the fan.
2. Should repeatedly adjust the separator pills sand quantitative valve.
3. Clear the impurities in the separator and separating sieve in time.
Eight, the hook does not run smoothly
Failure analysis: 1. Poor articulation between the active track and the main track.
2. Crash block, fork, the relative position of the active track has deviation.
Troubleshooting: 1. Adjust the relative position of the movable rail and the main rail, so that the articulation is correct.
2. Adjust the relative position of the bumping block, fork and movable rail, so that the collision position is correct and the movable rail can move freely.