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This is currently the most widely used model in coal mines underground, mainly used in horizontal or inclined situations less than 18 degrees. Due to the limitations of the strength of the conveyor belt and components, the length of a single machine cannot be too long.

Although the structure of the roller is relatively simple, the roller designed at present does not meet the standard requirements stipulated by the state, and the indicators considered in the design are insufficient, such as the running resistance coefficient is rarely considered.

Differential flex roller type reversible self-aligning idler. It is composed of cylindrical rollers, conical rollers, roller group rotating brackets, etc.

The belt speed used in China has reached 3.5-4.2m/s, which is fast and efficient. With the development of large-scale belt conveyor, in addition to the above advantages, there are also the advantages of high power, low power consumption, smooth operation of the transmission system, etc., so that its operation is safe and reliable, it is easier to control automatically, and the use cycle is long In order to achieve the best configuration of the conveying system, it should be optimized in the design process.

In today's rapid development, industrial production occupies an important position, and any mechanical products are processed step by step and improved step by step.