Asymmetric Rolling Roll Support for Longitudinal Force Stability
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Solution Overview
Problem
Conventional asymmetric rolling technologies face issues such as deformation of small work rolls due to strong reaction forces, leading to defects like uneven waves, bucking, and distortion in rolled materials, and the work rolls are displaced or broken during the rolling process.
Innovation Solution
An asymmetric rolling device using idle and guide rolls to support the first work roll in the longitudinal direction, maintaining alignment and responding to reaction forces, with features like idle rolls spaced apart from the drive roll and guide rolls to enhance stability and durability, and a sliding mechanism to minimize deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If asymmetric rolling is performed using work rolls of different radii to generate shear deformation and improve material formability, then the physical property and formability of the material are improved, but the small work roll is easily deformed due to strong reaction forces in the longitudinal direction
Solution Approach 1:
The patent introduces idle rolls and guide rolls as intermediary components between the drive roll and the small work roll. These intermediary rolls support the small work roll in the longitudinal direction, distributing the reaction forces and preventing direct transmission of strong forces to the small work roll, thereby preventing deformation while maintaining the asymmetric rolling effect for improved formability
2Adaptability or versatility
If asymmetric rolling is performed with small work rolls to enhance material properties, then shear deformation is generated in materials with poor formability, but defective phenomena such as uneven wave phenomenon, bucking phenomenon, uneven thickness phenomenon, distortion phenomenon, or camber phenomenon occur on the material
Solution Approach 1:
The idle rolls and guide rolls act as mediators that stabilize the small work roll position, preventing excessive deformation and ensuring uniform contact with the material. This stabilization eliminates the defective phenomena (uneven waves, bucking, distortion) while preserving the beneficial shear deformation effect for improving material formability
3Adaptability or versatility
If asymmetric rolling is performed using work rolls of different radii, then shear deformation is generated to improve material formability, but the work roll is displaced from the original position or broken due to severe deformation beyond elastic range
Solution Approach 1:
The idle rolls and guide rolls serve as protective intermediary components that support the small work roll against strong reaction forces. This support system prevents the work roll from experiencing severe deformation beyond its elastic range, thereby preventing displacement and breakage, while maintaining the asymmetric rolling configuration needed for generating shear deformation and improving formability
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
The device effectively responds to longitudinal forces, minimizing deformation and ensuring precise control over the shape of the rolled material, enhancing strength and durability while preventing defects.
Implementation Method 1
the work roll is displaced from the original position or is broken due to severe deformation of the work roll beyond an elastic range
Implementation Method 2
a drive roll contacting the first work roll and formed above or below the first work roll so as to drive the first work roll
Data Source
AI summary
The present disclosure relates to an asymmetric rolling device capable of enhancing a physical property of materials and may include: a first work roll contacting a first surface of a material to be rolled; a second work roll contacting a second surface of the material to be rolled and having a second radius greater than a first radius of the first work roll so as to asymmetrically roll the material to be rolled; a drive roll contacting the first work roll and formed above or below the first work roll so as to drive the first work roll; a driving device driving the second work roll or the drive roll; and a first idle roll contacting the first work roll and formed at a front or a back of the first work roll to support the first work roll in a longitudinal direction of the material.