In the adjustment of conveyor belts, the principles of "running tight but not loose, running high but not low, running large but not small, and running after but not before" are emphasizedThe conveyor mainly consists of a frame, conveyor belt, rollers, tensioning device, transmission device, etc. It can transport materials on a certain conveyor line, forming a material conveying process from the initial feeding point to the final unloading point. The conveyor has a large conveying capacity, long conveying distance, smooth conveying, no relative movement between the material and the conveyor belt, low noise, simple structure, easy maintenance, and low energy consumption. The conveyor should be supervised by a fixed personnel during operation, who must have general technical knowledge and be familiar with the performance of the conveyor.In general, conveyor belts often deviate during transportation due to the following reasons:1. Conveyor belt deviation:During the operation of the conveyor, the deviation of the conveyor belt may be due to the misalignment of the conveyor belt joints, the deviation of the belt buckle nails, or the non perpendicular alignment of the conveyor belt cut with the belt, resulting in uneven tension on the conveyor belt; The conveyor belt itself is not straight or the edges are severely worn, resulting in inconsistent tension on both sides of the conveyor belt and causing the deviation position to be unstable; The conveyor belt is loose or the initial tension is too high, causing the empty vehicle to deviate when unloaded; In the load-bearing section of the tape, due to eccentric feeding and lateral impact of the material, the distribution of the material on the tape is biased towards one side, and the tape that bears the eccentric load is subjected to eccentric force, resulting in deviation; When the conveyor belt is running, due to the different heights on both sides of the frame, the conveyor belt is not horizontal, and the material on it moves towards the lower side, resulting in deviation; The cleaning effect of the conveyor belt cleaner is poor, resulting in material sticking to the surface of the drum and roller, forming surfaces of different shapes, causing the conveyor belt to run unevenly and deviate.The deviation of the conveyor belt follows the rule of "running tight but not loose, running high but not low, running large but not small, and running after but not before". Specifically, as follows:(1) Tight running, not loose running: When the conveyor belt is running, if the centerline of the head and tail rollers is not parallel, causing different degrees of tightness on both sides of the conveyor belt, the conveyor belt will move towards the tighter side.(2) Run high, not low: If the supporting rollers and other devices are not in the same horizontal position parallel to the direction of the conveyor belt, but are higher on one side and lower on the other, then the conveyor belt will move towards the higher side.(3) Running big, not small: Processing errors, adhesive or uneven wear on the outer surface of the drum can cause uneven diameters, and the tape may deviate towards the side with the larger diameter.(4) After running, do not run before: If the roller support and other devices are not on a section perpendicular to the direction of the conveyor belt, and one side is in the front and the other side is in the back (determined by the direction of the conveyor belt), then the conveyor belt will move towards the back.In addition, there may be slippage during the transportation of the conveyor belt. When the conveyor belt starts, the tension at the point where it leaves the drum is insufficient, causing the conveyor belt to slip; Watering or humid environment on the conveyor belt reduces the friction coefficient between the transmission drum and the conveyor belt, resulting in insufficient friction and causing slippage; Too many damaged rear roller bearings or upper and lower roller bearings that do not rotate; Starting too fast can also cause slippage. At this time, it can be started slowly; If the load on the conveyor belt is too high, it will slip even if it exceeds the capacity of the motor.During use, attention should be paid to the above aspects as much as possible to improve the service life of the conveyor.
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