Rolling Direction Force Detection Using Segmented Load Sensors
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Solution Overview
Problem
Existing rolling apparatuses face challenges in accurately detecting rolling direction forces due to the size constraints of load detection devices, which can lead to inaccurate measurements when the work rolls tilt or wear down, affecting the production of flat-rolled metal materials.
Innovation Solution
The implementation of multiple load detection devices on housings or project blocks, strategically positioned to maintain contact with the work roll chocks across various orientations, ensuring accurate detection of rolling direction forces by supporting the chocks at multiple points and maintaining contact even with changes in roll position or wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single load detection device is used to measure rolling direction force, then the device structure is simple, but the measurement accuracy deteriorates when work rolls tilt or wear down
Solution Approach 1:
The single load detection device is segmented into multiple load detection devices (first and second devices) positioned at different locations. Each device independently measures the rolling direction force, and their results are combined to provide accurate measurement even when work rolls tilt or wear down, resolving the contradiction between measurement accuracy and device simplicity.
2Reliability
If load detection devices are positioned to contact work roll chocks, then rolling direction force can be measured, but contact is lost when rolls tilt or wear down
Solution Approach 1:
The contact system is segmented into multiple load detection devices positioned at different locations to contact the work roll chocks. This ensures that even if one device loses contact due to roll tilting or wearing, other devices maintain contact and continue measuring, thereby improving reliability without complicating operation.
Solution Approach 2:
The positions of the load detection devices are strategically changed/adjusted based on expected roll orientations and wear patterns. By positioning devices at multiple locations along the roll chock, the system adapts to various roll positions and maintains continuous contact, resolving the contradiction between reliability and ease of operation.
3Reliability
If multiple load detection devices are used to maintain contact across orientations, then measurement reliability improves, but device complexity increases
Solution Approach 1:
The detection system is divided into multiple load detection devices positioned at specific locations. This segmentation allows the system to maintain detection accuracy under various orientations while keeping each individual device relatively simple, balancing reliability improvement against device complexity.
Solution Approach 2:
Each load detection device is designed to perform the same function (measuring rolling direction force) but at different positions. This multi-functionality approach allows the system to achieve reliable detection across various orientations using standardized components, minimizing the increase in overall device complexity while improving reliability.
Data Source
AI summary
[Object]To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock.[Solution]A rolling apparatus for flat-rolled metal materials including a pair of upper and lower work rolls 1 and 2 includes a pair of work roll chocks 5 and 6 configured to hold the respective work rolls 1 and 2, housings 10 configured to hold the work roll chocks, and rolling direction force measurement devices 21, 22, 23, and 24 configured to measure rolling direction forces. The rolling direction force measurement devices include a plurality of load detection devices on an entry side or an exit side of the work roll chocks in a rolling direction, and the plurality of load detection devices are provided to one of the housings, and the plurality of load detection devices are disposed in a manner that, during rolling of the flat-rolled metal materials, at least two of the load detection devices are arranged adjacent to each other in a draft direction facing a side surface of a corresponding one of the work roll chocks. In this case, the at least two load detection devices are disposed in a manner that a line extending in the rolling direction and including a roll axis, which is a point of effort of a rolling direction force, is interposed between the at least two load detection devices in the draft direction.