About the main performance indicators and comparison of belt conveyor idlers

The main performance indicators and comparison of belt conveyor rollers. Belt conveyors play an important role in the transportation of bulk materials. The dryer mesh belt is a machine that uses static friction to transport materials in a continuous manner by friction drive. Using it, the material can be formed on a certain conveying line from the initial feeding point to the final unloading point to form a material conveying process. The chain plate feeder is a kind of mechanized storage and transportation system in lime production enterprises. Auxiliary equipment, its main function is to continuously and uniformly feed processed or unprocessed materials from a certain equipment (hoppers, storage bins, etc.) to the receiving equipment or transportation machinery. The belt loading conveyor has a large conveying capacity, It has the advantages of simple structure, convenient maintenance and standardized parts. It is widely used in mining, metallurgy, coal and other industries. It is used to transport loose materials or finished items. According to the requirements of the transportation process, it can be transported by a single unit, or composed of multiple units or combined with others. The conveying equipment is composed of a horizontal or inclined conveying system to meet the needs of different layout types of operation lines. It is suitable for conveying the bulk density of less than 1.67/ton/m3, easy-to-pick powder, granular, and small lumps with low abrasiveness Materials and bagged materials, such as coal, gravel, sand, cement (materials: powdery hydraulic inorganic cementitious materials), fertilizers, grains, etc. The temperature of the delivered material is less than 60°C. The captain and assembly form can be determined according to user requirements, and the drive can be an electric drum or a drive device with a drive frame. Logistics conveyor belt belt with traction parts The conveyor belt generally includes: traction parts, load-bearing members, driving devices, tensioning devices, redirecting devices and supports. Traction parts are used to transmit traction, which can be conveyor belts, traction chains or steel wire ropes (composed of steel wires, rope cores and grease); load-bearing components are used to carry materials, including hoppers, brackets or spreaders, etc.; drive devices are used for conveying The machine is powered by a motor, a reducer and a brake (stop); the tensioning device generally has two types of screw type and heavy hammer type, which can maintain a certain tension and sag of the traction member to ensure the normal operation of the conveyor belt ; The supporting member is used to support the traction member or the load-bearing member, and can adopt rollers, rollers, etc. The basic working principle of the tunnel drying oven: under the monitoring of the computer system, the bottles are transported by the conveyor belt into the preheating zone, high temperature sterilization zone and low temperature cooling zone of the tunnel sterilization oven. The conveyor belt speed is steplessly adjustable, and the temperature monitoring system is set to have no paper or paper records. The whole process is always under the protection of one hundred levels of laminar flow. The roller is one of the important parts of the belt loading conveyor. The important part of the loading conveyor is the idler roller. Therefore, its performance, service life and reliability will directly affect the maintenance workload, operating cost and operational reliability of the conveyor. At present, there are many types of idlers in the market, and their performance is also very different. In terms of service life, some rolls can be scrapped for several days or even hours, while some can run normally for more than ten years without damage. Of course, the price difference is relatively large, which makes it difficult for users to choose. 1. The life and reliability of rollers. The life of rollers can be divided into theoretical life, calculated life and service life. The theoretical life generally refers to the standard life of the bearing, which is provided by the bearing manufacturer. The calculated life is based on the theoretical life, the bearing working conditions, idler parts manufacturing and installation errors, idler stress state, idler shaft deformation, etc. are converted. The service life of the roller is relatively simple, which means the actual running time of the roller. Under normal circumstances, the life of the bearing is regarded as the life of the idler, which is consistent with the actual situation, because in most cases, the damage of the idler is caused by the failure of the bearing. The main factors that affect the life of the roll are: the type and carrying capacity of the roll bearing, the correct selection of the roll, the working environment and the lubrication conditions of the roll. According to the national standard (approved and issued: National Standardization Authority), the service life of the roller is no less than 20,000 hours, and there are many factors that affect this index. First of all, the choice of bearing is the choice of bearing. At present, most domestic manufacturers choose deep groove concentric ball bearings. The rotation resistance of the rollers at home and abroad can be realized. 0.5N, the difference can reach 6N, the difference is very big. Generally speaking, the rotation resistance of tapered roller bearings is slightly greater than that of ball bearings, but there is almost no difference when the machining quality and lubrication conditions are good.

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