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Common problems and countermeasures in the conveyor process
The belt conveyor is mainly used for conveying loose objects or pieces. Due to the different requirements of different processes, the belt conveyor not only has a single conveyor mode, but also can combine multiple conveyors for conveyance. When multiple conveyors constitute a conveying system, they can be horizontal or inclined. The combination and the composition system are diverse, which is one of the reasons why it is widely used. However, some faults often occur in the application, which affects the conveying efficiency of the articles.
Spreading is one of the common problems with belt conveyors. The belt conveyor should convey materials safely and stably. However, due to various reasons, during the conveying process, the belt conveyor often has a problem of spreading materials. The specific analysis is as follows: the concave section of the belt is suspended and the material is spread. The belt of the belt conveyor is continuous, and it should be in a state of tension at all times, but because the belt is flexible rather than rigid, so for a section of the belt, as long as the forces on the front and rear sections of the belt are not balanced, the belt will make It is in a relaxed state, which is why the concave section of the belt appears. The belt is suspended because its corresponding concave segment has a smaller radius of curvature. When the belt has a concave section, compared with the state of the entire belt, the appearance of the concave section has obviously changed the grooved state of the belt. At this time, from the perspective of the trough-shaped roller set, the belt is no longer close to each other, causing the groove angle to become smaller, which results in part of the problem of spreading. For such problems, we should fundamentally optimize and improve the design, analyze from the phenomenon of the concave section above, and use a larger radius of curvature for the concave section belt to effectively avoid such problems.
Method for solving deviation of belt conveyor belt
Belt misalignment is the most common problem in the operation of belt conveyors, but as long as reasonable treatment is taken, such problems can be easily solved. Installation of self-aligning rollers. The use of self-aligning rollers is an effective method to solve the problem of deviation of the belt conveyor belt. Regarding the self- aligning idler roller group , the principle is the same whether it is an intermediate shaft type, a four-link type or a vertical roller type. The purpose is to make the belt automatically center, so that the off-track belt is adjusted. In general, the belt conveyor is relatively short, and its deviation problem is more common and the solution is relatively complicated. The effect of this method is better. In addition, this method works well when the belt conveyor runs in both directions. It is worth noting that this method is not suitable for long belt conveyors, which will adversely affect the service life of the belt. Adjusting the drive roller and changing the position of the roller is an important method to solve the problem of belt deviation. In a belt conveyor, there are at least 2 to 5 rollers. Of course, there is no need to distinguish which is the driving roller or the redirecting roller, but one thing is the same, that is, the installation position of the roller must be perpendicular to the centerline of the belt More specifically, it is perpendicular to the longitudinal centerline. If the two directions are tilted greatly, the problem of deviation is unavoidable.
The specific method for adjusting the belt conveyor driving roller and redirecting the roller is that for the head roller, if the belt deviates to one side of the roller, then the bearing seat on that side should move forward. The bearing seat on one side moves backward. The adjustment method of the rear roller is exactly the opposite. In order to adjust the belt to a more suitable and accurate position, it usually needs to be adjusted repeatedly. In addition, for driving or redirecting the drum, the position of the blank at the transfer point should be accurately positioned, which is also an important factor affecting the deviation of the belt. From the actual production point of view, when the position of the two belt conveyors in the horizontal direction is relatively special, such as when the projections of the two machines are perpendicular to each other, this effect is greater. In general, the relative position of the two belt conveyors at the transfer point needs to be given high attention. From the perspective of the speed vector, the lower the relative height, the greater the horizontal partial speed of the material, so the greater the impact force on the lower belt of the belt conveyor will eventually lead to the deviation of the belt.If the material is biased to which side, then It means that the belt conveyor belt deflects to the opposite side. Therefore, in the design process, this problem should be considered and solved, and the relative position between the two belt conveyors should be avoided as low as possible. Generally, the width of the material guide slot should be taken to a suitable value, which cannot be too large or too small, generally 2/3 of the belt width.At the same time, the direction and position of the material drop can be changed, thereby reducing or avoiding the belt conveyor belt The appearance of deviation problems.
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