Automatic compensation type wear-free roller bushing with disc spring

By using disc spring-driven automatic compensation wear-free roll bushings, the problem of poor synchronous transmission accuracy caused by the clearance between the roll journal and the roll bushing was solved, achieving a combination of high rigidity and quick assembly/disassembly, thus improving rolling efficiency and product quality.

CN115283447BActive Publication Date: 2026-07-03SHANDONG IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Filing Date
2022-08-10
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing hot rolling production lines, there is a gap in the fit between the roll journal and the roll sleeve, which results in poor synchronous transmission accuracy of the rolls, affecting the stability of the material shape and the accuracy of the product, and making it difficult to achieve quick loading and unloading.

Method used

The wear-free roll bushing with disc spring automatic compensation is adopted. Through the radial adjustment key plate and the disc spring radial adjustment mechanism, the tight interference fit and large clearance separation between the roll journal and the roll bushing are achieved. The elastic force of the disc spring is used to automatically compensate for wear, meeting the requirements of high rigidity and quick assembly and disassembly.

Benefits of technology

It improves the rotational synchronization and transmission accuracy of the rolls, reduces labor intensity, increases roll changing efficiency, adapts to changes in rolling torque, and ensures stable product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115283447B_ABST
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Abstract

This invention discloses a disc spring-driven, wear-free roller bushing with automatic compensation, comprising: a bushing body; a radial adjustment key plate, disposed in a groove with clearance fit; and a disc spring radial adjustment mechanism, comprising: a bearing nut, a T-shaped tie rod, a disc spring, and an adjusting nut; the lower part of the bearing nut is inserted into and fixed in a through hole, while the upper part is located outside the bushing body; one end of the T-shaped tie rod passes through the guide hole of the bearing nut and the through hole on the bushing body, and is confined within the T-shaped groove of the radial adjustment key plate, while the other end is located outside the bearing nut; the disc spring is located within the through hole of the bushing body, with one end abutting against the end face of the bearing nut and the other end abutting against the radial adjustment key plate; the adjusting nut is threaded onto the T-shaped tie rod and located on the side of the bearing nut furthest from the bushing body. This roller bushing can withstand large rolling torques and is easy to adjust, facilitating quick installation and removal on-site, and possesses the structural advantages of simplicity, reliability, efficiency, and speed.
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