Wear-resistant chain

Abstract

The invention discloses a wear-resistant chain. The chain comprises an inner chain plate, an outer chain plate, a pin shaft, a sleeve and a locking piece, wherein the inner chain plate is connected with the outer chain plate through the pin shaft; the sleeve is arranged outside the pin shaft; the locking piece for fixing the pin shaft is arranged outside the outer chain plate; and a wear-resistant layer is arranged on the surface of the pin shaft and is an alloy coating which is a hard chromium layer. According to the wear-resistant chain, the wear-resistant layer is arranged on the surface of the pin shaft, so the wear degree of the surface of the pin shaft, which is rolled by a high-hardness abrasive mixture, is greatly reduced, the corrosion resistance of the pin shaft is improved, the service life is prolonged, imported chains are not needed, and production cost is greatly reduced.

Description

technical field [0001] The invention relates to a chain, in particular to a wear-resistant chain. Background technique [0002] In the fields of mining, coal fine washing, metallurgical casting, etc., the wear resistance of the chain is very high, because there are a large amount of slag, iron filings, carbon filings, sand, dust and other high-hardness materials in the equipment used in these fields. Abrasives, so that when the chain is running, the surface of the pin shaft is more severely worn than the inner wall of the sleeve due to the rolling of the high-hardness abrasive mixture, which will cause the chain to fail due to severe wear of the pin shaft after less than 3 months of use. Improving the surface hardness of the pin shaft will cause the pin shaft to be brittle, and the purpose of prolonging the service life of the chain cannot be achieved. Because the self-produced chains are far from reaching the expected service life, they can only rely on imports. The price ...

AI Technical Summary

Problems solved by technology

[0002] In the fields of mining, coal fine washing, metallurgical casting, etc., the wear resistance of the chain is very high, because there are a large amount of slag, iron filings, carbon filings, sand, dust and other high-hardness materials in the equipment used in these fields. Abrasives, so that when the chain is running, the surface of the pin shaft is more severely worn than the inner wall of the sleeve due to the rolling of the high-hardness abrasive mixture, which will cause the chain to fail due to severe wear of the pin shaft after less than 3 months of use. Improving the surface hardness of the pin shaft will cause the pin shaft to be brittle and break, which cannot achieve the purpose of prolonging the service life of the chain

Because the self-produced chain is far from reaching the expected service life, we can only rely on imports. The price of imported chains is very expensive, which increases production costs

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