Self-lubricated speed-doubling chain

Abstract

The invention discloses a self-lubricated speed-doubling chain, which comprises an outer chain plate, an inner chain plate and a pin shaft. The outer chain plate is arranged on the inner side of the inner chain plate; the pin shaft horizontally penetrates through the inner chain plate and the outer chain plate and is fixed on the outer side of the outer chain plate; the outer side of the pin shaft is provided with a large roller, and two sides of the large roller are respectively provided with a small roller; two sleeves are arranged between the large roller and the pin shaft and are mutually contacted; the outer sidewalls of the other ends of the sleeves are contacted with the inner chain plate; and the sum of the length of the two sleeves is equal to the distance between two symmetric inner side faces of the outer chain plate. When the self-lubricated speed-doubling chain is used, dry friction caused by direct contact between the pin shaft and the inner chain plate can be avoided, and the wear resistance of the pin shaft can be improved. Moreover, since the sum of the length of the two sleeves is equal to the distance between the two symmetric inner side faces of the outer chain plate, the smoothness of a chain framework can be conveniently ensured, direct contact between the outer chain plate and the inner chain plate can be avoided, and the service life of the chain can be greatly prolonged.

Description

technical field [0001] The invention relates to a double-speed chain, in particular to a self-lubricating double-speed chain with long service life. Background technique [0002] At present, the traditional double-speed chains used in automated production lines are mostly composed of six parts, including inner chain plates, sleeves, small plastic rollers, large plastic rollers with steps, outer chain plates, and pin shafts. The principle is: the goods are conveyed on the large roller, and the small roller runs on the track. The contact friction between the small roller and the step of the large roller drives the large roller to move, and according to the outer diameter ratio of the large and small rollers, the large roller moves double speed effect. This double-speed chain requires frequent refueling and maintenance to ensure the service life of the chain. If drip lubrication or oil groove lubrication is used, not only will the equipment cost be increased, but also the lub...

AI Technical Summary

Problems solved by technology

If drip lubrication or oil groove lubrication is used, not only will the equipment cost be increased, but also the lubricating oil adhering to it will be scattered, polluting the environment and increasing additional environmental maintenance costs

More importantly, if the lubricating oil enters between the large and small rollers, it will cause the small roller and the large roller to slip on each other, and cannot drive the large roller to run, so that the conveyed items cannot achieve the effect of speeding up

Images