High-speed steel wear-resistant collar

Abstract

The invention discloses a high-speed steel wear-resistant collar. An inner roller sleeve is tightly fixed on a roller, inner collars and sealing collars which are arranged alternatively are clamped bytwo outer collars, the outer collars, the inner collars and the sealing collars jointly realize rolling, when some portion of the collar is seriously damaged and needs to be replaced, only the damaged collar portion needs to be disassembled for replacement, the whole collar does not need to be replaced, and the cost is saved. A steel wire rope group is matched with a first bolt head and a secondbolt head to fix the three collars, the outermost layer of the steel wire rope group is provided with an arc cutting angle, the arc surface with a diameter larger than the diameter of a single strandwire rope is formed, the contact surface between the steel wire rope group and the collar is expanded, and the limiting and fixing effect is improved. A gap between the steel wire rope group and a threaded hole is beneficial to heat dissipation, meanwhile, due to the fact that the collar is used for rolling in a high-temperature environment, the collar is subjected to thermal expansion at a high temperature, the gap between the steel wire rope group and the threaded hole can provide balance for thermal expansion, and cracking of the collar after thermal expansion is avoided.

Description

technical field [0001] The invention relates to the technical field of roll fittings, in particular to a high-speed steel wear-resistant roll ring. Background technique [0002] As we all know, rolls are the main working parts and tools that cause continuous plastic deformation of metal at high temperatures. Roller rings are a kind of rings that are used to cover the periphery of rolls to prevent iron oxide scales from falling into bearings and withstand lateral pressure. It has been widely used in the field of roll fittings; the existing roll ring is usually an integral structure, when a certain position of the roll ring is excessively worn or damaged due to excessive pressure, the entire roll ring needs to be removed Replacement, which will cause an increase in the cost of the roll ring, resulting in reduced practicability. [0003] Therefore, a high-speed steel wear-resistant roller ring is proposed. Contents of the invention [0004] The purpose of the present invent...

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Problems solved by technology

[0002] As we all know, rolls are the main working parts and tools that cause continuous plastic deformation of metal at high temperatures. Roller rings are used to cover the periphery of rolls to prevent iron oxide scales from falling into bearings and withstand lateral pressure. It has been widely used in the field of roll fittings; the existing roll ring is usually an integral structure, when a certain position of the roll ring is excessively worn or damaged due to excessive pressure, the entire roll ring needs to be removed Replacement, which will increase the cost of the roll ring, resulting in reduced availability

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