Roller sleeve dismounting device and method

By combining the support unit and the heating unit, the roller sleeve and the roller shaft are separated smoothly by using the temperature difference and the gravity of the roller shaft, which solves the problem of damage during the disassembly of the roller sleeve and ensures sealing and product quality.

CN118162850BActive Publication Date: 2026-06-26NINGBO IRON & STEEL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO IRON & STEEL
Filing Date
2024-03-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technology can easily damage the roller sleeve during disassembly, affecting sealing and product quality, especially when the roller sleeve is not worn to the point of being scrapped, making it difficult to guarantee the sealing of the water cooling channel.

Method used

The device employs a combination of a support unit and a heating unit. The support unit extends into the groove bottom of the roller sleeve for support, while the heating unit heats the outer circumference of the roller sleeve. The temperature difference causes the roller sleeve to separate from the roller shaft, avoiding direct contact between radial and axial forces. The roller shaft's own weight is used to achieve a smooth separation.

Benefits of technology

This reduces the chance of damage to the roller sleeve, ensures the sealing between the inner wall of the roller sleeve and the outer wall of the roller shaft, avoids destructive disassembly, and enables the roller sleeve to be reused.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN118162850B_ABST
    Figure CN118162850B_ABST
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Abstract

The application provides a roller sleeve dismounting device and a roller sleeve dismounting method, and relates to the technical field of auxiliary dismounting equipment. The roller sleeve dismounting device comprises a supporting unit and a heating unit. The supporting unit is formed with a containing space with an open top. The aperture of the opening is larger than the inner diameter of the roller sleeve of the sleeve roller. The edge of the opening is provided with a supporting seat. The supporting seat is used for extending into the groove provided at the axial end of the roller sleeve and being in contact with the groove bottom. The heating unit is provided at the top of the supporting unit. The heating unit is provided with a heating cavity penetrating from top to bottom. The aperture of the heating cavity is larger than the outer diameter of the roller sleeve. The application can separate the roller sleeve from the roller shaft while reducing the damage probability of the roller sleeve. The dismounted roller sleeve can be continuously used after maintenance, and the roller sleeve is not dismounted in a destructive way. The structure is simple, and the practicality is high.
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