Variety classification of transmission belt
This kind of high performance seamless flat belt has been developed into three types: Polyurethane tape, polyurethane core belt and rubber canvas core belt. In the rubber micro strip, in addition to chemical fiber canvas, there are special products using nylon membrane, aramid cord, glass fiber cord as core and surface rubber covered with chrome leather. They have the essential difference with the traditional canvas plate, the specification request is very precise, the added value is very high, the world each big adhesive tape producer is competing the development, has become in the rubber industry the high and new technology product. Triangle belt, also known as V belt, is the largest output belt, the most varieties and the most widely used products. Since 1917, the first American made car fan belt, after the early 20s began to spread to the agriculture machinery, more than half a century of development is very rapid, has become the mainstream of the drive belt. In the world's transmission belt, from the rubber consumption point of view, the triangle belt has now accounted for 65%, the tooth belt is 25%, flat belt has been reduced to less than 10%. V-belt has become the main equipment of power transmission and speed change in various mechanical devices in the world. It plays a more and more important role in the fields of agricultural machinery, machine tools, automobiles, ships, office equipment and so on.
With the rise of high-tech industries, this kind of micro band is widely used in computer peripheral equipment, office automation equipment and labor-saving equipment. For example, ticket vending machine, automatic ticket machine, currency exchange machine, coupons, cash machines and bank clearing machine machine, automatic inspection machines, copiers, medical equipment, automatic packing machine, fish detector and so on, the United States and Japan and other countries every year to double-digit growth.
The flat belt is one of the oldest varieties of transmission belt. It has more than 100 years of history, but it still accounts for about half of the market share in the transmission belt until the middle of twentieth Century. The utility model has the advantages of simple structure, convenient transmission, no limit of distance, easy adjustment and replacement, etc., and is widely used in various industrial and agricultural machinery. Flat belt width is generally 16-600mm, the length of the maximum up to 100 ~ 200m, the number of layers is 6, the most common for the canvas belt, divided into cladding, stacked and stacked three. Laminated tape (also known as the cladding with round edge band) improved products, with soft, elastic, durable advantages such as flexible, suitable for use in small round and above 20m/s fast transmission device. The folded belt is between the two, and is easy to wear at the edges. As the flat belt drive efficiency is low (usually about 85%), and occupies a larger area, therefore, from 1960s, the world's output has dropped year by year. In developed countries, in addition to some agricultural machinery and textile machinery is still a small amount of use, has been in a state of being eliminated. On the other hand, in this period, the non - joint and hot - junction ring made of chemical fiber canvas and cord fabric became a great progress all over the world. With high strength, low noise, stable transmission, smooth transportation, flex, long life and no joint features such as, using the field continues to expand, and in the micro belt formed in the mainstream.
