Conveyor belt is used to load the goods and transfer the amount of traction of the common bearing parts, mainly by rubber belt or plastic belt as raw materials. Material requirements high strength, good resistance to abrasion and durable, torsion, elongation is small, easy installation and maintenance. The ordinary rubber belt is the most widely used. This kind of rubber belt generally use cotton fabric or chemical fiber fabric hang after the glue layers as core materials, rubber as cover material, suitable for working environment in - 15 ℃ ~ + and ℃ between, the material temperature not more than fifty ℃, domestic common belt conveyor common bandwidth have 6 kinds of specification: 500 mm and 650 mm and 800 mm and 1000 mm and 1200 mm and 1400 mm.
     Rubber conveyor belt tension by core adhesive liner layer inherit, with strength depends on the band width and core liner layer. In order to make the delivery with enough lateral stiffness, prevent it on a retainer roll between both sides to fall too much, should be based on bandwidth choose certain liner layer.
    The characteristics of rubber conveyor belt is a tank resistance, good elongation string of small, to drive roller of the friction coefficient is bigger, strength and allow tape speed, it is suitable for large surface is widely used.
     At present also have plastic instead of rubber, used as a conveyor belt material, plastic material's advantage lies in the manufacturing process is simple and of good quality, low price, plastic material delivery with multiple core and whole core two kinds, multiple core plastic belt and ordinary rubber band structure is roughly same, the whole core plastic belt to vinylon - cotton blended fabric for whole core, with polyvinyl chloride (PVC) plastic for cover. Rubber covering role is to protect the liner from mechanical damage, wear and external medium erosion, according to the nature of the bored by transportation and size to the selected cover rubber thickness.
     Rubber belt connection form can use mechanical joint or cure joint. Mechanical joint is to use a row of steel clamp connection at both ends of the conveyor belt, the structure is simple, production and maintenance more convenient. But due to the steel clamp to transport has some damage, the strength of the joints is only 35% of the tape - 40%, core exposed is susceptible to corrosion. This kind of connection mode suitable for conveying distance is not big, material weight is lighter, no corrosion, the maintenance time to demand higher occasion. Vulcanization joint is the head of the conveyor belt layers and covering cutting into symmetric step, coated with mortar, heating pressure and become, vulcanization joint strength can reach 85% ~ 90% of the conveyor belt strength, and can prevent the core corrosion, long service life. In the small batch manufacturing and maintenance, sometimes by cold adhesive technology to connect rubber conveyor belt. Cold adhesive joint strength is better than cure turn joint, but simple process and low cost.
Conveyor belt often with a retainer roll are used together, due to the transmission belt bending resistance is bigger, generally can't play a branch off bearing material role. A retainer roller can support material, reduce conveyor belt sag, ensure material in the smooth running of the conveyor belt.
     In carrying a cargo, generally USES parallel roller. Parallel roller is a root flat roller structure, to ensure a smooth delivery of the goods.
    Buffer roller are used for conveyer belt by cargo place, in order to reduce the goods to the impact of the conveyor belt in roller below installation rubber ring and spring.
    There is also a self-aligning roller, it is to adjust conveyor belt transverse position, prevent the conveyor belt running deviation phenomenon happened. Conveyor belt running deviation is running in a common fault. Conveyor belt running deviation is mainly caused by the roller installation is not straight, frame rugged, conveyor belt connection not flat, roller surface not clean, roller in irons or material loading migration, self-aligning roller can adjust conveyor belt transverse position, ensure the smooth running of conveyor belt.
    A conveyor roller number, roller quality has direct influence on the service life of the conveyor belt and running resistance. Roller maintenance and replacement cost is conveyor operating costs of direct part. In order to reduce roller conveyor belt for the movement of the resistance, roller ends equipped with rolling bearings, to ensure that the roller rotation agile and prolong service life. The distance between the roller should be appropriate, space is too small will increase conveyor belt wear and power consumption, too big if the two between the roller conveyor belt is too sag, go against the delivery of materials.