Cross-Roll Setting Assembly for Accurate Under-Load Roll Gap Control
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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 with a mechanical setting unit and a hydraulic setting unit, where the mechanical setting unit comprises two displaceable subassemblies with a common axis of symmetry, and the hydraulic setting unit comprises displaceable subassemblies with central axes, are integrated as a common subassembly within a force-absorbing roll stand to ensure precise adjustment of roll gaps under load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical setting units are used for cross-roll setting, then positioning accuracy can be achieved, but tilting and twisting movements occur under load causing regulation inaccuracy
Solution Approach 1:
The patent combines mechanical setting units with hydraulic setting units into a hybrid setting system. The mechanical units provide precise positioning while the hydraulic units compensate for tilting and twisting movements under load, thereby achieving both high positioning accuracy and high regulation accuracy simultaneously.
Solution Approach 2:
The hydraulic setting units act as intermediaries between the mechanical setting units and the rolls. They absorb and compensate for the harmful tilting and twisting movements that occur under load, protecting the mechanical setting units from these disturbances and maintaining regulation accuracy.
2Manufacturing precision
If hydraulic setting units are used for cross-roll setting, then regulation under load is improved, but positioning accuracy decreases compared to mechanical settings
Solution Approach 1:
The patent merges mechanical setting units and hydraulic setting units into a coordinated system. The mechanical units establish precise initial positioning, while the hydraulic units provide continuous regulation under load, combining the advantages of both systems to achieve superior overall performance.
3Productivity
If rolls are adjusted under load, then productivity increases, but risk of damage from tilting and twisting movements increases
Solution Approach 1:
The hydraulic setting units are designed to absorb and cushion the tilting and twisting forces that occur during under-load adjustment. This protective function allows rolls to be adjusted under load without risking damage to the mechanical setting units or the rolls themselves, thereby enabling continuous operation and improving productivity.
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, allowing for precise roll adjustments even under load, thereby enhancing the accuracy and safety of the cross-rolling process.
Implementation Method 1
a hydraulic setting unit for a second cross-roll setting
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.