Roll Chock Liner Structure for Cold Rolling Vibration Suppression
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Solution Overview
Problem
Existing rolling mills face challenges in suppressing vibrations during the cold-rolling process, which can cause cyclic thickness changes in the steel sheet, and conventional methods using elastic members on roll chock liners face issues with wear and exposure.
Innovation Solution
A rolling mill configuration with a roll chock liner comprising a first liner plate, a second liner plate stacked in the rolling direction, and an elastic member interposed between them, fastened using fasteners with heads housed in dedicated openings, preventing exposure and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an elastic member is mounted on the roll chock liner to suppress vibrations, then vibration suppression is improved, but the elastic member becomes exposed and wears out
Solution Approach 1:
The roll chock liner is divided into multiple liner plates stacked in the rolling direction, with the elastic member positioned between specific plates. This segmentation allows the elastic member to be protected while maintaining its vibration suppression function.
Solution Approach 2:
The elastic member is nested between the first and second liner plates, with the second liner plate covering and protecting the elastic member from exposure and wear. This nested structure solves the wear problem while preserving the elastic member's functionality.
2Device complexity
If a single liner plate is used on the roll chock, then the structure is simple, but vibration suppression is insufficient
Solution Approach 1:
The roll chock liner combines multiple materials with different properties: rigid liner plates for structural support and an elastic member for vibration absorption. This composite structure achieves effective vibration suppression while maintaining structural integrity.
Solution Approach 2:
Different portions of the liner structure have different properties - the liner plates provide rigidity where structural support is needed, while the elastic member provides flexibility where vibration absorption is required. This local differentiation optimizes both functions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively suppresses vibrations and prevents wear of the roll chock liner, ensuring stable rolling processes and reduced cyclic thickness changes in the steel sheet.
Implementation Method 1
an elastic member interposed between the first liner plate and the second liner plate... capable of suppressing vibration during a rolling process
Data Source
Figure 1~2
Figure 3
AI summary
A tandem cold rolling mill 1 (rolling mill) includes a plurality of stands 3 to 6 configured to roll a steel sheet 2 (material to be rolled), and at least one stand 3, among the stands 3 to 6, includes: at least one pair of work rolls 10 (rolling rolls); a work roll chock 20 (roll chock) that rotatably support the work rolls 10; and a work roll chock liner 30 (roll chock liner) that includes a first liner plate 36 mounted on the work roll chock 20, a second liner plate 38 stacked on the first liner plate 36 in the rolling direction X, and an elastic member 37 interposed between the first liner plate 36 and the second liner plate 38.