Principle of conveyor belt rollers

‌The role of rollers in conveyor belts is to support and guide the conveyor belt through its rotational motion to ensure that materials can be transported smoothly. The roller uses the friction between the conveyor belt and the roller to drive the roller tube, bearing seat, bearing outer ring, and sealing ring to rotate, thereby efficiently realizing the transmission of logistics‌.

Working principle of rollers
The working principle of rollers is based on the friction between them and the conveyor belt. When the conveyor belt is running, the roller supports the conveyor belt through rotational motion to prevent the conveyor belt from sagging or running off the track. The rotational motion of the roller and the movement of the conveyor belt work together to ensure the smooth operation of the conveyor belt, thereby ensuring the smooth transmission of materials‌.

Types of rollers and their application in belt conveyors
There are many types of rollers, including supporting roller groups, self-aligning roller groups, and buffer roller groups.

‌Supporting roller group‌: Used to support the conveyor belt and the materials on it, divided into upper roller group and lower roller group. The upper roller group supports the load-bearing branch, and the lower roller group supports the unloaded branch‌.
‌Self-aligning roller group‌: Used to correct the deviation of the conveyor belt and ensure the normal operation of the conveyor. There are many types of self-aligning roller groups, such as rotary grooved self-aligning roller groups, side roller forward tilting self-aligning roller groups and side rollers with conical self-aligning roller groups‌.
‌Buffer roller group‌: Installed at the loading point of the conveyor belt, used to buffer the impact of materials and reduce damage to the roller bearings. There are many types of buffer rollers, such as rubber ring type, spring plate type and heavy-duty buffer rollers‌.
The importance of rollers in belt conveyors
The roller is one of the core components of the belt conveyor, accounting for about 30%-40% of the weight of the whole machine and 5%-30% of the price of the whole machine. Its quality and performance directly affect the operating efficiency and stability of the belt conveyor. High-quality rollers can ensure the smooth operation of the conveyor belt, reduce the failure rate and extend the service life of the equipment‌.