Novel sealing chain

Abstract

The invention provides a novel sealing chain which solves the problem that the existing sealing chain is short in life. The novel sealing chain is formed by combining a plurality of chain units sequentially; each chain unit comprises two inner chain plates that are fixed by a shaft sleeve; two outer chain plates are arranged on the outer sides of the two inner chain plates of each chain unit, and are fixed by a pin shaft correspondingly; the shaft sleeves are arranged on the pin shafts in a sleeving manner; a first sealing ring and a second sealing ring are arranged between one inner chain plate and one outer chain plate that are arranged on the same side correspondingly; the first sealing rings are arranged on the shaft sleeves in a sleeving manner; the second sealing rings are arranged on the first sealing rings in a sleeving manner; the two end faces of each first sealing ring and the two end faces of each second sealing ring are planes; the two end faces of one first sealing ring and the two end faces of one second sealing ring abut against one inner chain plate and one outer chain plate correspondingly; the first sealing rings are fixedly connected with the inner chain plates; the second sealing rings are fixedly connected with the outer chain plates; an annular first oil storage groove is formed in the end face, contacted with one outer chain plate, of one first sealing ring correspondingly; and an annular second oil storage groove is formed in the end face, contacted with one inner chain plate, of one second sealing ring correspondingly. The novel sealing chain has the advantage of long service life.

Description

technical field [0001] The invention belongs to a chain, in particular to a novel sealing chain. Background technique [0002] In the prior art, the sealed chain consists of an inner chain plate, an outer chain plate, a shaft sleeve, a pin shaft and O Type sealing ring and so on. in, O The type sealing ring is squeezed between the inner chain plate, the outer chain plate and the shaft sleeve, and these four form a closed space, so that the grease between the shaft sleeve and the pin shaft will not overflow during operation. [0003] In actual use, the elasticity, wear resistance and sealing performance of the sealing ring play an important role in the service life of the chain. and O There is a certain amount of deformation after being squeezed. Although its advantage is that the price is low, the wear resistance of this sealing ring is poor. After the grease evaporates, the chain will wear faster without lubrication, which cannot meet the market demand for hi...

AI Technical Summary

Problems solved by technology

and O There is a certain amount of deformation after being squeezed. Although its advantage is that the price is low, the wear resistance of this sealing ring is poor. After the grease evaporates, the chain will wear faster without lubrication, which cannot meet the market demand for high-strength sealing. chain life requirements

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