High-strength chains are professionally used for supporting engineering, manufacturing, production lines and special environments. There are many classifications of mechanical chains, which can be divided into transmission chains, transport chains, decorative chains, cable-tightening chains and special chains according to their uses. According to the structure of the chain: it can be divided into roller chain, sleeve chain, plate chain, nylon roller chain, scraper chain, sleeve chain and so on.
Most of the chains are composed of chain plates, chain pins, shaft sleeves and other components. Other types of chains just make different changes to the chain plates according to different needs. Some are equipped with scrapers on the chain plates, some are equipped with guide bearings on the chain plates, and some are equipped with rollers on the chain plates, etc. These are all modifications that are used to stop in different application places.
For ordinary chains, the smooth parts are mainly the sprocket and the rollers of the chain, the chain shaft and the bushing. Due to the different structure of the chain, the smooth part of the chain may also be changed. However, in most chains, the smooth parts are mainly the sprocket and the rollers of the chain, the chain shaft and the bushing.
Because the matching clearance between the shaft of the chain and the shaft sleeve is small, it is difficult to be smooth. Regarding special chains: such as chains equipped with bearings, rollers and other friction pairs, the smooth parts of these friction pairs should also be considered.
The main failure mode of the chain:
A: The pin is broken;
B: Pitch increase;
C: The sprocket tooth is broken;
D: Chain card bite
The smooth oil should be chosen as much as possible. For special chains and special conditions, smooth grease and dry film smoothing agent can be selected. The request for smoothing agent during chain operation should be met to the greatest extent, and the requirements of equipment and consumption should be separated, and suitable and economical smoothing agent should be selected.
