Tongxiang is a big China impact roller supplier.The roller is an important part of the belt conveyor, many types, large number. It accounts for 35% of the total cost of a belt conveyor, with more than 70% resistance, so the quality of the roller is particularly important.The role of the roller is to support the conveyor belt and material weight. The roller operation must be flexible and reliable. Reducing the frictional force of the conveyor belt with the roller is critical to the life of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor. Although the impact roller is a smaller part in the belt conveyor, the structure is not complicated, but it is not easy to create a high quality roller.Judge the roller is good or bad standards are the following: the roller radial runout; roller flexibility; axial movement.
Impact roller: installed in the conveyor under the material section, to reduce the impact of the conveyor belt to extend the conveyor belt life,it is used for the impact of the blanket on the conveyor belt, mainly for the coal preparation plant, coking plants, chemical plants and other corrosive environment developed a class of roller, which itself has Toughness is more than 10 times the ordinary metal, life of five times the traditional column shoes, corrosion-resistant flame retardant, anti-static, light weight and other characteristics, widely used in mining.
Generally, the impact roller is made of elastic material. This roller is used at the feeding point. When the material is dropped on the conveyor belt, the large material will have a great impact force. The rubber ring on the roller can play a role. Buffering effect. This type of rubber ring is a common form of cushioning roller, which is made of elastic discs having a certain gap between each other.
The component of Impact roller:
1. Roller stamping bearing seat: The roller bearing seat is divided into two types, one is the stamped bearing seat and the other is the cast iron bearing seat. Most of stamped bearing seats are welded with steel pipes, and cast iron bearing seats are used for extrusion with steel pipes. The characteristics of stamped bearing seats are good sealing and strong overall bearing capacity. The most important feature of cast iron bearing seats is high concentricity, but the bearing capacity is lower than that of stamped bearing seats.
2. Roller bearing: The bearing is the most important part of the belt conveyor idler roller. The bearing’s good or bad influence the service life of the roller directly. Therefore, choosing roller bearings is more prudent than choosing other roller accessories.
3, roller seal: roller seal material is divided into polyethylene and nylon. Polyethylene is low in cost, but its wear resistance is relatively poor. On the contrary, the sealing cost of nylon material is relatively high, but the abrasion resistance is high.
4. Roller shaft: The roller shaft is divided into a cold-drawn steel shaft and a stepped shaft. Note: The tolerance of the roller shaft must be guaranteed to be between 0.002mm and 0.019mm.
5. Retaining spring: The spring used for the idler roller is made of spring steel and plays the role of fixed idler roller. The inferior spring has poor elasticity and variability, and it cannot prevent and control the idling of the idler roller under the punching with external force.
6. Retaining ring: The fixing of the parts on the shaft is divided into axial fixation and circumferential fixation.

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