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11, belt conveyor machine skin common fault handling

Number of visits: Date:2013-4-24


Belt conveyor belt deviation adjustment:

Belt Conveyor running belt deviation is the most common fault. In order to solve this type of fault focus should pay attention to the installation of the dimensional accuracy and daily maintenance. There are a variety of reasons for deviation, according to different reasons to deal with differences.
1. Adjust the belt of the belt conveyor belt to adjust the position of the roller group to adjust the deviation when the belt conveyor is in the middle of the whole belt conveyor. The mounting holes on both sides of the roller group are made into long holes when Make adjustments. The specific method of adjustment (see Figure 1), the specific method is to which side of the belt, the side of the roller group toward the belt forward direction forward, or the other side of the backward. As shown in Figure 1, the belt is moved in the upward direction, and the lower part of the idler roll should move to the left and the upper position of the idler group is moved to the right.
2. The installation of aligning roller set aligning roller group has a variety of types such as intermediate rotary shaft, four-link type, vertical roller, etc., the principle is to use the block or roller in the horizontal direction of rotation or block the lateral thrust So that the belt automatically to the heart to adjust the belt deviation of the purpose. It is generally reasonable to use this method when the overall length of the belt conveyor is shorter or when the belt conveyor is bi-directionally operating, because the shorter belt conveyor is more prone to deviation and is not easy to adjust. The long belt conveyor is best not to use this method, because the use of aligning roller group will have a certain impact on the life of the belt.
3. Adjust the drive roller and the direction of the roller to drive the drum and adjust the drum adjustment is an important part of the belt deviation adjustment. Because a belt conveyor has at least 2 to 5 rollers, all drums must be mounted at a position perpendicular to the centerline of the belt conveyor. If the skew is too large, the deviation will occur. The adjustment method is similar to adjusting the roller group. For the head roller, such as the belt to the right side of the drum deviation, the right side of the bearing seat should move forward, the belt to the left side of the roller deviation, the left side of the bearing should move forward, the corresponding can also Move the left side bearing seat back or the right side bearing seat backwards. The tail roller is adjusted in the opposite direction to the head roller. Adjustment method (see Figure 2). After repeated adjustments until the belt transferred to the ideal location. It is advisable to install the position correctly before adjusting or reversing the drum.
4. Adjust the tension at the belt tension adjustment is a belt conveyor deviation adjustment of a very important part. The two rewinding rollers in the upper part of the hammer tension should be perpendicular to the gravitational perpendicular to the longitudinal direction of the belt, ie to ensure that the centerline of the shaft is horizontal. When tension is applied with a screw tension or a hydraulic cylinder, the two bearing housings of the tension roller should be translated at the same time to ensure that the roller axis is perpendicular to the longitudinal direction of the belt. The adjustment of the specific belt deviation is similar to that of the roller.
5. The effect of the blanking position on the belt deviation at the transfer point The material blanking position at the transfer point has a very large effect on the belt deviation, especially when the two belt machines are projected vertically in the horizontal plane. Usually should consider the transfer point at the upper and lower two belt machine relative height. The lower the relative height, the higher the horizontal velocity component of the material, the greater the lateral impact on the lower belt, and the material is also difficult to center. So that the material in the belt cross section on the skew, eventually leading to deviation of the belt. If the material to the right side, then the belt to the left side deviation, and vice versa. In the design process should be as much as possible to increase the relative height of the two belt machine. In the space-limited movement of bulk transport machinery up and down funnel, guide trough and other parts of the form and size should be carefully considered. The width of the general guide groove should be about two thirds of the width of the belt. To reduce or avoid the belt deviation can increase the block material to block the material, change the direction and location of the material falling.
6. Bidirectional operation Belt conveyor deviation adjustment Bi-directional operation of the belt conveyor belt deviation adjustment than the one-way belt conveyor deviation adjustment is relatively difficult, in the specific adjustment should first adjust a direction, and then adjust Another direction. Adjust the time to carefully observe the belt movement and the trend of deviation, one by one to adjust. The focus should be on the drive roller and adjust the adjustment to the drum, followed by the adjustment of the roller and the material blanking point adjustment. At the same time should pay attention to the belt in the vulcanization joints should be the length of the belt section of the force evenly, in the use of guided traction when the force on both sides as much as possible.

The handling of belt conveyor
Belt conveyor sprinkling is a common problem, the reasons are many. But the focus is to strengthen the daily maintenance and maintenance.
1. The transfer point of the spices at the transfer point of the sprinkler is mainly in the hopper, guide trough, etc.. Such as belt conveyor serious overload, belt conveyor conveyor tarpaulin rubber skirt damage, guide groove at the steel design time away from the belt rubber skirt longer material to the material out of the trough. The above situation can be in the control of transport capacity, strengthen the maintenance on the solution.
2. When the concave radius of the belt is too small, the belt will be vacant when the radius of curvature of the concave section is small. At this time, the belt becomes a change of the groove, because the belt has left the groove roller group, the general groove angle So that part of the material spilled out. Therefore, in the design phase should be used as much as possible a large radius of curvature to avoid such a situation. Such as in the mobile mechanical loading machine, heap reclaimer equipment in order to shorten the tail car and the concave section of this design into a non-circular transition interval, when the belt width is relatively easy to use when the smaller scavenging material.
3. Spreading when the deviation of the sprinkling of the belt when the deviation is due to the two edges in the operation of the height of the two sides have changed, while the other side, while the other side of the material from the low side of the method, the method is to adjust Belt deviation.

Belt slippery solution
1. Heavy hammer tension belt conveyor belt slip The belt conveyor with the hammer tensioner can be added with a counterweight when the belt is slipping and added to the belt without slipping. But should not be added too much, so as not to allow the belt to withstand unnecessary excessive tension and reduce the belt life.
2. Spiral tension or hydraulic tension Tape machine skid Use a screw tension or hydraulic tension of the belt conveyor slip can be adjusted when the tension stroke to increase the tension. However, sometimes the tension stroke is not enough, the belt appeared permanent deformation, then the belt can be cut off a section of re-vulcanization.
3. In the use of nylon belt or EP is required to stretch a long stroke, when the trip is not enough to re-vulcanization or increase the tension to solve the trip.

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