Conveyor causes of common failures and treatment
Belt can be used as transport machinery has been widely used in coal, grain, flour mills and other industries. Can transport bulk materials, but also delivery of bagged materials. Users in the installation and use of such equipment, some of the cause of the malfunction is not always clear, treatment is small. This paper describes the reasons for common failures of such equipment and treatment methods.
First, the conveyor belt slip and the solution in operation, slipping for many reasons, common causes and solutions are:
1, the initial tension is too small. Belt tension is not enough to leave the drum at the conveyor belt caused by skidding. This situation generally occurs at startup, the solution is to adjust the tensioning device to increase initial tension.
2, the drive pulley and the belt is not enough cause friction between slipping. Mostly because its not on the conveyor belt of water or humid environment. The solution is to add some rosin on the drum end. But be careful not to hand the addition, the application of blown blast equipment to avoid personal injury.
3, does not turn tail roller bearing damage or damage to the upper and lower roller bearing does not turn too much. Cause of the damage was the tail drifting too much, there is no timely maintenance and replacement of damaged parts or rotation is not flexible, so that resistance increases caused by skidding.
4, start too fast can also form a skid. This problem can be slow to start. Such as the use of squirrel-cage motor, twice and then start jogging, but also can overcome the slip phenomenon.
5, the conveyor belt load is too large, more than the motor power will slip. At this point the positive side slip played a protective role in the motor. , a long time, the motor will be burned. But it is a slippery run accident.
To overcome the belt slipping phenomenon, we must first find the cause of slipping before effective solutions.
Second, the conveyor belt and treatment of deviation
Conveyor belt run-time deviation is one of the most common faults. There are several reasons for deviation, the main reason is to install low precision and poor routine maintenance.
During installation, the head and tail drum, in the middle between the roller in the same center line as possible and parallel to each other in order to ensure unbiased or less biased belt. In addition, the tape connector to the right, both sides of the circumference should be the same.
In the course, if there is deviation, will have to make the following checks to determine the cause, to be adjusted. Deviation always check the site conveyor and processing methods are:
1, check the horizontal center line and the conveyor roller is not coincidence degree longitudinal centerline. If you do not contact ratio value of more than 3mm, you should use both sides of the roller group elongated mounting holes to adjust them. The specific method is preferred which side of the conveyor belt, roller conveyor side group which moved forward the way forward, or backward the other side.
2、 2, check the head, tail rack bearing the deviation of the two planes. If the two planes the deviation is greater than 1mm, then the two planes should adjust in the same plane. The adjustment of the head drum is: If the right side of the roller conveyor to the deviation, the roller bearing should be the right or left side bearing to move forward after the shift; if the left side of the roller conveyor to the deviation, the roller bearing should be left or right side of the bearing to move forward after the shift. Rear roller adjustment method and the head drum is just the opposite.
3, check the location of the material in the conveyor belt. The material in the conveyor belt is not centered on the cross section will result in belt deviation. If the material to the right side, the belt deviation to the left, and vice versa. Should be possible to use materials center. Conveyor belt to reduce or avoid such deviation can increase the block plate and change the direction and location of the material. |
