Seals for chain drives

Abstract

The invention discloses a sealing device for a chain transmission device. The sealing device comprises a first bearing, a second bearing, a third bearing and a fourth bearing. The first bearing and the second bearing are arranged on the two sides of a first chain wheel correspondingly. A first flange is arranged on the outer wall of the inner end of the first bearing. A first piston ring groove isformed in the outer wall of the outer end of the first bearing. A first piston ring is arranged in the first piston ring groove. A second flange is arranged on the outer wall of the inner end of thesecond bearing. A second piston ring groove is formed in the outer wall of the outer end of the second bearing. A second piston ring is arranged in the second piston ring groove. The outer end of thefirst bearing is provided with a first connecting pipe, and the first connecting pipe is connected with the first bearing through the first piston ring in a sealed manner. The outer end of the secondbearing is provided with a second connecting pipe, and the second connecting pipe is connected with the second bearing through the second piston ring in a sealed manner. A second sealing cover is arranged on a first sealing cover in a covering manner, and the second sealing cover is fixedly connected with the first sealing cover. The sealing device is suitable for sealing of various chain transmission devices and can be suitable for being applied to any occasions where the position between a driving shaft and a driven shaft is fixed.

Description

technical field [0001] The invention relates to a sealing device of a chain transmission device. Background technique [0002] The chain transmission device includes a chain, the chain is installed on the first sprocket and the second sprocket, the first sprocket is installed on the driving shaft, and the second sprocket is installed on the driven shaft. Chain, sprocket wheel are not sealed, if lubricating oil is smeared on the chain, then lubricating oil leakage is serious, pollutes environment easily. Some occasions that require a clean production environment (such as food machinery, cigarette machinery, etc.), cannot be lubricated, and the chain and sprocket are in a state of severe dry friction, which is easy to be damaged, and the chain is easy to elongate, requiring frequent maintenance and replacement. The chain sprockets are not sealed and sometimes cause industrial accidents. Contents of the invention [0003] The technical problem to be solved by the present in...

AI Technical Summary

Problems solved by technology

The chain and the sprocket are not sealed. If lubricating oil is applied to the chain, the lubricating oil will leak seriously and easily pollute the environment.

Some occasions that require a clean production environment (such as food machinery, cigarette machinery, etc.), cannot be lubricated, and the chain and sprocket are in a state of severe dry friction, which is easy to be damaged, and the chain is easy to stretch, requiring frequent maintenance and replacement

The chain sprocket is not sealed, which sometimes causes industrial accidents

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