The role of the roller is to support the conveyor belt and the weight of the material. The idler operation must be flexible and reliable. Reducing the friction between the conveyor belt and the supporting rollers plays a key role in the life of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor. Although the idler is a small part in the belt conveyor and the structure is not complicated, it is not easy to produce a good quality idler. The criteria for judging the quality of the idler are as follows: the radial runout of the idler .
Roller flexibility; axial shifting amount. Divided into rubber rollers, ceramic rollers, nylon rollers and insulation rollers by material. There are mainly trough-shaped roller groups, various types of parallel roller groups, various self-aligning roller groups, and various buffer roller groups. Slotted rollers include ordinary type rollers, forward type rollers, quick-change bearing rollers, hanging type rollers, three-chain rollers, reversible rollers, variable groove angle rollers, transitional rollers, V-shaped rollers and so on.
Parallel idlers include ordinary idlers, comb idlers, forward inclined idlers, steel rubber idlers, spiral idlers, etc. Self-aligning idlers include general purpose, friction reversible idlers, and powerful idlers. , Cone rollers, spiral rollers, combined rollers, etc .; buffer rollers include spring plate rollers, buffer ring rollers, strong buffer rollers, adjustable elastic rollers, hanging rollers Wait.
Ceramic rollers can effectively prevent the belt from deviating, reduce the local loss of the belt, extend the belt life, reduce the frequent replacement of the rollers and use them in harsh outdoor environments. Ceramic rollers have a longer life than ordinary rollers. Ceramic rollers have high strength and good wear resistance. Ceramic rollers have a long service life and can reduce belt wear. High temperature resistance, oxidation resistance, strong corrosion resistance, ceramic rollers are suitable for various harsh environments. No static electricity, no sparks during abrasion and collision, ceramic idler is suitable for easy environment such as coal mine. Stable performance, can effectively prevent the belt conveyor from drifting, pulling forks, and generating heat.