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What problems should be paid attention to in the selection of rubber conveyor belts?

Sep 08, 2019

Rubber conveyor belts are used in a wide range of applications and are used in many industries.


      1. The shape and structure of the rubber conveyor belt

      Different types of conveying methods, such as flat shape, trough shape, large inclination angle, bending and turning conveying, box shape, tubular shape, closed conveying, and lifting conveying, etc., these different conveying methods are determined by the conveying capacity of the conveyor belt, and Subject to terrain and environmental conditions, it is a prerequisite for determining the material, structure, safety factor and length of the belt used for the heavy rubber belt.


      2, conveyor belt core material, structure selection

      The performance of the conveyor belt has a great relationship with the core material, structure and number of layers. The cotton canvas multi-layer transport tape has low strength, many layers, is not resistant to fatigue, is easy to mold and corrosion, has large weight, high energy consumption, and high strength of nylon belt. The utility model has the advantages of large elasticity, light weight, good impact resistance and bending resistance, good groove forming performance, mildew resistance, water resistance and the like, and the performance is superior to the ordinary conveyor belt of the cotton canvas as the skeleton, and the disadvantage is that the elongation is large, when When the tensioning stroke can be set longer, the nylon rubber belt can be preferred. The strength of the polyester belt is similar to that of cotton. It has all the advantages of nylon tape. Its modulus of elasticity is higher than that of nylon, its elongation is small, and its dimensional stability is good. A more ideal transportation belt commonly used in industry, and the steel cord conveyor belt has high strength, good groove formation, small elongation and short tensioning stroke, and is particularly suitable for conveying requirements of large volume, high belt speed and long distance.


      3, the choice of cover layer

      The choice of cover layer includes cover material, surface shape and thickness. The main components of the cover layer are various rubbers and plastics. Under most climatic conditions, the rubber band can work normally under the condition that the inclination angle is not more than the flat angle, and the flame retardant conveyance The inclination angle with normal operation is below 120 degrees. Although the main frame material is not as good as rubber, it has good flame retardancy, unloading and cleaning properties, and the performance difference of various rubbers. It is also very large. For example, natural rubber and styrene-butadiene rubber have good energy absorption and abrasion resistance. Ethylene-propylene rubber is particularly heat-resistant. Butyl cyanide rubber has good oil resistance. Propylene-butyl rubber has both heat resistance and oxidation resistance. The type of cover material to be selected must be comprehensively considered based on the type of commonly used materials, operating conditions and working environment.