The middle trough carries the role of carrying material in the entire coal mining scraper conveyor, it is made by two methods of integral casting and casting welding. Although the middle groove can be formed, the actual effect of the product on the coal mining scraper conveyor is that there will be differences between the names, which can be found from the amount of wear.
By comparing the use of a surface, it was found that the wear of the middle casting groove of the coal mining scraper conveyor was very good; there was basically no deformation and damage; there was no obvious deformation and fracture of the connecting part of the rolling ear and dumbbell pin; Differently, there is severe wear and tear.
The results show that the middle groove of the coal mining scraper conveyor is cast as much as possible, so that the middle plate of the middle groove can be oriented in the running direction of the scraper; and the total number of wave patterns helps reduce the scraper in the coal mining scraper conveyor. The contact area of the middle plate significantly reduces the friction resistance of the blade and extends its service life.
However, when it is necessary to integrally cast the middle groove of the coal mining scraper conveyor, the entire material has as high a strength and high wear resistance as possible. Therefore, the problems of dewelding and cracking of the middle plate and the bottom plate completely overcome the influence of welding the middle groove. It also avoids the situation where the groove of another intermediate welding groove is prone to wear and the intermediate plate has relatively poor wear resistance.
Because the amount of wear is controlled, this means that the coal mining scraper conveyor basically does not need to repair the scraper during use, which greatly saves maintenance costs and improves production efficiency. The results show that under the same conditions of use, the service life of the entire casting with high strength, high wear and non-welded middle grooves is more than twice that of welded middle grooves, and the proportion of the medium is very obvious for the medium.
