无动力托辊在皮带输送机的应用领域非常广泛，是组件的重要组成部门。无动力托辊在在输送设备当中起着支撑和承载的作用，其主要是由若干个无动力托辊和输送带进行结合而成，并且可以根据使用场合的不同，有的皮带输送机会很长，并且由数个段落进行组合而成，相邻的架两存在着落差，当上段输送带上的物料落到下段的始端时，由于物料的自重和速度等影响，现有的技术通过托辊机构以及在其两边所设置数道缓冲橡胶圈可以使得皮带与托辊之间实现缓冲作用，可以在一定程度上起到保护橡胶输送带与输送机托辊，抗击所承受的外力冲击，但在业内现场使用中发现，这种结构还不能够从根本上来解决输送皮带和托辊间长期工作所出现的易损问题。

Unpowered idlers are widely used in belt conveyors, and are important components of components. The unpowered roller plays the role of supporting and carrying in the conveying equipment, which is mainly composed of several unpowered rollers and conveyor belts, and can be used for a long time according to the different use situation, and it is composed of several paragraphs, and the two adjacent frame has a drop, When the material on the upper part of the conveyer belt falls to the beginning of the lower part, the existing technology can make a buffer between the belt and the roller, which can protect the rubber belt and the conveyor to a certain extent, due to the weight and speed of the material. Roll, to resist the external force impact, but in the field of use in the industry found that this structure is not able to fundamentally solve the long-term work between the conveyer belt and the rollers.