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Conveyor Chains

Conveyor Chains:

It is a conveyor using chains as its name suggests. It is used for various purpose and is a type of conveyor which has a lot of varieties compared with other kinds of conveyor. Chain conveyor is often used in situations that belt conveyor cannot cope with because of temperature, airtightness, degree of curve, durability, weight, setting environment, etc.

Main types of chain conveyor are bucket, flight, apron, slat, pipe, and so on. About the structure of chain conveyor, flat plates or buckets for carrying various stuffs are attached to the chain. Chains are engaged to wheels and sprockets attached to head(front) and tail (opposite side of the front), and stuffs are carried when chain moves forward by rotating the wheels and sprockets. Rails for chain roller is attached for conveying stuffs smoothly. By this way, conveyor works without being off to right and left since chain run along the rail, and also load for driving motor can be reduced by letting the chains run on the rails. However, there are some types of the chain conveyor which is not suitable for using the rails.

Types of basic conveyor chains:

  • with bushes: for low speeds (conveyor, feeder, scraper belts) and in certain precise cases where the chain’s accessories are the carriers, and here the chain serves essentially as the traction component.

  • with small rollers: in elevators where the chain’s speed is higher and causes impacts at the moment of gear meshing. The rollers, made of quenched carburized steel or of steel that has received another treatment, protect the bushes and prevent tooth wear.

  • with wheels (rollers with a diameter greater than the height of the plates): these rollers allow the chain to roll on a flat surface. The rollers may be plain or flanged to ensure lateral guidance. Plain and flanged rollers are made of treated steel.