Cross-Roll Gap Adjustment with Coaxial Mechanical-Hydraulic Setting
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Solution Overview
Problem
Existing cross-rolling technologies face challenges in accurately adjusting roll gaps under load, leading to potential inaccuracies and damage due to tilting or twisting movements during the cross-rolling process.
Innovation Solution
A cross-rolling unit comprising a mechanical setting unit with two displaceable subassemblies having a common axis of symmetry and a hydraulic setting unit with displaceable subassemblies having central axes, both integrated as a common subassembly within a force-absorbing roll stand, allowing for precise adjustment of roll gaps under load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mechanical setting unit with two mutually displaceable subassemblies having a common axis of symmetry and a hydraulic setting unit with displaceable subassemblies having central axes are integrated as a common subassembly, then positioning accuracy and regulation accuracy are improved, but device complexity increases
Solution Approach 1:
The mechanical setting unit and hydraulic setting unit are integrated as a common subassembly with shared axes, combining two setting mechanisms into a unified structure. This merging reduces the number of separate components and alignment requirements, thereby improving positioning accuracy while managing device complexity through systematic integration.
Solution Approach 2:
The design employs a common axis of symmetry for mechanical subassemblies and central axes for hydraulic subassemblies, creating a symmetric configuration that minimizes tilting and twisting movements. This symmetric arrangement improves regulation accuracy by ensuring balanced force distribution across the roll gap adjustment mechanism.
2Manufacturing precision
If mechanical and hydraulic setting units are integrated as a common subassembly with shared axes, then regulation accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
By integrating mechanical and hydraulic setting units into a common subassembly with shared axes, the invention reduces the number of separate manufacturing processes and alignment operations required. This unified structure improves regulation accuracy while simplifying manufacturing through reduced assembly steps and fewer precision alignment requirements compared to separate units.
3Stability of the object's composition
If the mechanical setting unit and hydraulic setting unit are disposed as a common subassembly with common axes, then tilting and twisting movements are minimized, but the structure becomes more complex
Solution Approach 1:
The common axis of symmetry for mechanical subassemblies and central axes for hydraulic subassemblies create a symmetric structural configuration that inherently minimizes tilting and twisting movements during roll gap adjustment. This symmetric design improves stability by ensuring balanced force distribution, while the modular common subassembly structure manages complexity through systematic integration rather than ad hoc arrangements.
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 minimizes tilting and twisting movements, enabling high positioning and regulation accuracy during cross-rolling, and allows for both mechanical and hydraulic adjustments under load, improving control accuracy and natural angular frequency while reducing hydraulic power requirements.
Implementation Method 1
a hydraulic setting unit for a second cross-roll setting, wherein the mechanical setting unit comprises two mutually displaceable mechanical subassemblies having a common axis of symmetry and the hydraulic setting unit comprises at least two mutually displaceable hydraulic subassemblies having respectively one central axis
Data Source
AI summary
In order to provide an adjustment of the roll gap under load with high positioning accuracy and regulation accuracy, a cross-rolling unit for adjusting rolls operating under load with, disposed on a force-absorbing roll stand, a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting, wherein the mechanical setting unit includes two mutually displaceable mechanical subassemblies having a common axis of symmetry and the hydraulic setting unit includes at least two mutually displaceable hydraulic subassemblies having respectively one central axis, has the mechanical setting unit and the hydraulic setting unit disposed in the force-absorbing roll stand as a common subassembly. The axis of symmetry of at least one of the mutually displaceable mechanical subassemblies and the central axes of each of the mutually displaceable hydraulic subassemblies are the same.