High-precision eccentric sleeve adjusting device for roller shaft

By combining a servo motor-driven harmonic reducer and a T-block, along with a ring cylinder and an absolute photoelectric encoder, the problem of precise adjustment and real-time monitoring of the roller eccentric sleeve was solved, thus improving rolling accuracy and equipment stability.

CN224423820UActive Publication Date: 2026-06-30ZHEJIANG PENGCHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG PENGCHENG TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, the axial height adjustment accuracy of the roller eccentric sleeve is insufficient, which easily leads to fluctuations in rolling force and insufficient real-time performance and accuracy of roll gap measurement.

Method used

A combination of a servo motor-driven harmonic reducer and a T-block is used to achieve micron-level precise adjustment of the eccentric sleeve; an annular hydraulic cylinder is used to counteract axial force, and an absolute photoelectric encoder is used to monitor the rotation angle in real time, enabling real-time and precise monitoring of the roll gap size.

Benefits of technology

It achieves micron-level precise adjustment of the eccentric sleeve, suppresses axial movement, improves equipment stability and rolling accuracy, and avoids manual measurement errors and hysteresis problems.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a high-precision roller eccentric sleeve adjustment device, comprising a roller installed inside a housing, an eccentric sleeve mounted on the circumference of the roller, and an axial height adjustment component corresponding to the eccentric sleeve installed on the housing. The axial height adjustment component includes a servo motor, the output end of which is connected to the input end of a harmonic reducer. One end of a T-block abuts against the output end of the harmonic reducer, and the other end of the T-block abuts against the eccentric sleeve. This invention uses a servo motor to drive a harmonic reducer with a transmission ratio of 1:300, which in turn drives the T-block. Utilizing its high transmission precision and micro-displacement characteristics, it achieves micron-level precise adjustment of the axial height of the eccentric sleeve. Compared to traditional gear transmission, the harmonic reducer has the characteristics of zero backlash and smooth transmission, converting the rotational motion of the servo motor into a micro-axial displacement of the eccentric sleeve, significantly improving rolling accuracy.
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