How to adjust when the belt conveyor runs off?

How to adjust when the belt conveyor runs off?

1. Adjusting the carrying roller set tape can adjust the position of the roller set to adjust the running deviation when the entire belt conveyor is deflected in the middle of the belt conveyor; in the manufacturing, the mounting holes on both sides of the roller set are processed to grow holes for adjustment . The specific adjustment method is the side to which the tape is biased, which side of the roller set moves forward toward the advance direction of the tape, or the other side moves backward. As the tape moves upward in the upward direction, the lower position of the roller set should move to the left, and the upper position of the idler set moves to the right.

2. Installation of the aligning roller set The aligning roller set has various types such as intermediate rotary shaft type, four-link type, vertical roller type, etc. The principle is to block or generate lateral thrust by blocking or idler in the horizontal plane. The tape is automatically centered to achieve the purpose of adjusting the deviation of the tape. This method is generally reasonable when the total length of the belt conveyor is short or when the belt conveyor is operated in both directions, because the shorter belt conveyor is more prone to deviation and is not easy to adjust. Long tape conveyors must not use this method, because the use of the centering roller set will have a certain impact on the life of the tape.

3. Adjusting the drive roller and the reversing roller position The adjustment of the drive roller and the reversing roller is an important part of the tape deviation adjustment. Since a belt conveyor has at least 2 to 5 rollers, the installation position of all the rollers must be perpendicular to the center line of the length of the belt conveyor. If the deflection is too large, the deviation will occur. The adjustment method is similar to the adjustment of the roller set. For the head roller, such as tape, to the right side of the drum, the bearing housing on the right side should move forward, and the tape should be moved to the left side of the drum. The bearing housing on the left side should move forward, and the corresponding bearing can also Move the left bearing housing back or the right bearing housing back. The tail roller is adjusted in the opposite way to the head roller. The adjustment method is as shown. After repeated adjustments until the tape is adjusted to a desired position. The position must be accurately installed before adjusting the drive or redirecting the drum.

4. The adjustment of the tensioning point of the tensioning belt is a very important part of the belt conveyor's deviation adjustment. The two redirecting rollers on the upper part of the weight tensioning section should be perpendicular to the vertical line of gravity except for the longitudinal direction of the tape, that is, the horizontal centerline of the shaft is ensured. When using a screw tension or hydraulic cylinder tension, the two housings of the tensioning drum should be translated simultaneously to ensure that the drum axis is perpendicular to the longitudinal direction of the tape. The specific method of adjusting the deviation of the tape is similar to the adjustment at the drum.

5. Influence of the blanking position at the transfer point on the deviation of the tape The blanking position of the material at the transfer point has a very large influence on the deviation of the tape, especially when the projection of the two belt conveyors in the horizontal plane is vertical. The relative heights of the upper and lower belt conveyors at the transfer point should generally be considered. The lower the relative height, the greater the horizontal velocity component of the material, the greater the lateral impact on the underlying tape, and the difficulty in centering the material. The material on the cross-section of the tape is deflected, which eventually causes the tape to run off. If the material is on the right side, the tape goes to the left and vice versa. The relative height of the two belt conveyors should be increased as much as possible during the design process. The form and size of the upper and lower funnels, guide troughs, etc. of the space-constrained mobile bulk conveying machinery should be carefully considered. Generally, the width of the guide groove should be about two-thirds of the width of the tape. In order to reduce or avoid the deviation of the tape, the baffle block material can be increased, and the falling direction and position of the material can be changed.

6. Two-way running belt conveyor deviation adjustment The two-way operation of the belt conveyor belt offset adjustment is relatively more difficult than the one-way belt conveyor deviation adjustment. In the specific adjustment, one direction should be adjusted first, then adjust Another direction. When adjusting, carefully observe the relationship between the direction of the tape movement and the trend of deviation, and adjust them one by one. The focus should be on the adjustment of the drive roller and the redirecting roller, followed by the adjustment of the idler and the adjustment of the blanking point of the material. At the same time, it should be noted that the adhesive tape should be evenly stressed in the longitudinal direction of the tape when the joint is vulcanized, and the forces on both sides should be as equal as possible when using the guide chain.