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Focus to address such failures to pay attention to the dimensional accuracy of the installation and day-to-day maintenance. There are many reasons for deviation, processing depending on the reason for the difference between. 1. Adjust the the carrying idlers belt conveyor belt in the middle of the entire belt conveyor deviation to adjust the position of the roller group to adjust the deviation; grow hole mounting holes on both sides of the roller group are processed at the time of manufacture, in order to be adjusted. Specific adjustment method, the specific method is biased towards belt on which side, which side of the roller toward the belt forward direction forward, or the other side after the shift. As shown in Figure 1 belt upward direction deviation is lower position at the roller group should move to the left, move to the right at the upper roller group. 2. There are many types of mounting self-aligning roller group Spherical roller group such as the middle of the shaft, four-link, the principle of vertical roller type horizontal thrust block or idlers direction of rotation in the horizontal plane blocking or produce the automatic belt to adjust the belt deviation to the heart. Usually shorter total length of the belt conveyor or belt conveyor bidirectional runtime, this method is more reasonable, the shorter belt conveyor easier deviation and not easy to adjust. Long belt conveyor is best not to use this method, have some impact because the group will belt service life of the self-aligning roller. 3. Adjust the drive roller and bend pulley position the drive the roller bend pulley adjustment is an important part of the belt deviation adjustment. Because a belt conveyor with at least 2-5 of rollers, the mounting position of all of the rollers must be perpendicular to the centerline of the longitudinal direction of the belt conveyor, if the skew is too large inevitable deviation. Adjustment Method and idler group of similar. For the head drum, such as the belt deviation to the right side of the drum, the bearing seat on the right should be moved forward, the belt deviation to the left side of the drum, then the left of the bearing should be moved forward, and the corresponding may also be shift the bearing seat on the left side or the right side of the bearing seat backward. Rear roller adjustment and the head drum contrary. Adjustment method. After repeated adjustments until the belt is transferred to a better position. Best adjust the drive or bend pulley install its exact location. 4. Adjustment of the tension at the adjustment of the belt tension at a very important part of the belt conveyor deviation adjustment. It should also be outside the hammer tension at the upper part of the two bend pulley in addition should be perpendicular to the direction of the length of the belt is perpendicular to the the gravity vertical line, which is to ensure the level of the shaft centerline. Tensioning spiral tensioning or hydraulic cylinder, the two chocks of the tensioning drum should also pan, to ensure that the perpendicular to the longitudinal direction of the axis of the drum and the belt. Specific belt deviation adjustment with the adjustment of the roller at. 5. The reproduced point blanking position belt deviation reprint at the point of the material blanking position of the belt deviation have a very big impact, especially in the two belt conveyor in the horizontal plane of projection perpendicular greater impact. Usually should consider the relative height of the the reproduced point at the upper and lower two belt conveyor. The relative height of the lower, the greater of the horizontal velocity component of the material, the greater the impact on the lower belt lateral, while the materials can also be difficult to center. The skew in the cross section of belt materials, and ultimately lead to belt deviation. If the material is biased to the right, then the belt deviation to the left, and vice versa. As far as possible in the design process to increase the relative height of the two belts. Bulk material handling machinery of the upper and lower funnel, the form and size of the pieces of the chute, etc. should be seriously considered in the mobile space restrictions. General chute width should be the width of the belt for about two-thirds more appropriate. In order to reduce or avoid the belt deviation increase backgauge the plate blocking material to change the direction and location of the whereabouts of the material. 6. Bidirectional operation the adjustment the bidirectional operation adjustment of the belt conveyor deviation belt conveyor belt deviation than the one-way adjustment of the belt conveyor deviation relatively difficult for many specific adjustments should be adjusted first in one direction, and then adjust the Another direction. Adjust to carefully observe the relationship between the belt movement direction and deviation trends, be adjusted individually. Emphasis should be placed on the drive roller and bend pulley adjustment second is the idler adjustment with the material blanking point adjustment. The belt in the vulcanized joint should be uniform so that the force in the direction of the length of the belt cross section when the traction of the chain guide on both sides of the force should also be noted as equal as possible.
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