Rotationally Symmetrical Rolling Stand With Eccentric Roller Adjustment
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Solution Overview
Problem
Existing rolling stands for metal rods, wires, or pipes fail to provide flexible positioning and adjustment configurations, leading to insufficient roundness of the rolled material and limited accessibility for automatic and manual adjustment.
Innovation Solution
A stand with a rotationally symmetrical housing and eccentric bushings allows for adjustable radial spacing of rollers, enabling modular placement and flexible adjustment configurations, including both manual and automatic operation, while maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stands with limited side surfaces are used, then the structure is simple, but the flexibility and modularity of rolling mill setups are reduced
Solution Approach 1:
The stand housing is designed with threefold rotational symmetry (120-degree symmetry) rather than conventional bilateral symmetry, creating a structure that can be positioned in multiple orientations while maintaining functional equivalence. This symmetric design enables flexible placement in rolling mill setups while keeping the structural complexity manageable through repetition of identical components.
Solution Approach 2:
The rotationally symmetrical housing with six side surfaces allows the same stand to serve multiple positions and configurations in a rolling mill. Any of the six side surfaces can serve as a contact surface for positioning, making the stand universally applicable in various arrangements without requiring multiple different stand designs.
2Manufacturing precision
If multiple stands are arranged in succession to improve roundness, then the roundness of rolled material is improved, but the complexity and size of the rolling mill increases
Solution Approach 1:
The patent combines the functions of multiple stands with different roller arrangements (Y-arrangement and anti-Y-arrangement) into a single stand design. By incorporating three rollers arranged at 120-degree intervals with the ability to position them in different configurations, one stand can perform the roundness-improving function that previously required multiple sequential stands, thereby reducing the overall complexity and size of the rolling mill.
3Ease of operation
If adjustment connector is positioned for manual operation accessibility, then manual adjustment is easy, but automatic adjustment by remote motor is not possible
Solution Approach 1:
The adjustment connector is designed with a universal interface that can accommodate both manual operation and automatic remote motor actuation. The connector can be positioned on any of the six side surfaces of the rotationally symmetrical housing, allowing the same stand configuration to support both manual adjustment (when positioned for accessibility) and automatic adjustment (when positioned for motor coupling), thus providing flexibility in adjustment configurations.
4Adaptability or versatility
If stands are designed with fixed roller positions, then the structure is simple, but the radial spacing of rollers cannot be adjusted for different diameters
Solution Approach 1:
The stand incorporates an eccentric adjustment mechanism that enables dynamic adjustment of the radial spacing of rollers from the rolling axis. The roller shafts are mounted in bearing holes of the stand housing in such a way that the radial spacing is adjustable, allowing the caliber to be set for different material diameters while maintaining a relatively simple overall structure through the use of standard eccentric adjustment components.
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 solution enhances the flexibility and modularity of rolling mill setups, ensuring high-quality roundness of the rolled material and simplifies drive arrangement, reducing the complexity and size of the rolling mill.
Implementation Method 1
the three roller shafts being mounted by means of eccentric bushings in bearing holes of the stand housing in such a way that a radial spacing of the rollers from the rolling axis is adjustable
Data Source
AI summary
The present application relates to a stand (1) for rolling metal rods, wires or pipes along a rolling axis (19), said stand comprising a stand housing (10), the outside of which, viewed along the rolling axis (19), comprises at least six side surfaces (14.1-14.6) that are of equal length and are arranged in a rotationally symmetrical manner about the rolling axis, wherein in each case two side surfaces (14.1, 14.4, 14.2, 14.5, 14.3, 14.6) form a pair of side surfaces (14.1-14.6) that are located in parallel with one another, and three rollers (20.1-20.3) which are positioned on one roller shaft in each case, surround the rolling axis (19) in a star-shaped manner, and together form a caliber (21). The three roller shafts are mounted by means of eccentric bushings in bearing holes of the stand housing (10) in such a way that a radial spacing of the rollers (20.1-20.3) from the rolling axis (19) is adjustable.