Bearing Unit Production Using Load-Torque Feedback
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Solution Overview
Problem
Bearing units face increased torque due to changing load conditions, which affects their performance and efficiency, particularly in applications like vehicles where low torque and stability are crucial for fuel efficiency and reliability.
Innovation Solution
A producing method that involves measuring torque under various load conditions during production, determining target values for production parameters based on load-torque relationships, and optimizing these parameters to minimize torque changes due to load variations, thereby enhancing the bearing unit's resistance to disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If torque measurement is performed only at production time to control quality, then production efficiency is maintained, but the ability to reduce torque change under load conditions is insufficient
Solution Approach 1:
The patent applies preliminary action by measuring torque under multiple load conditions during the production process itself, rather than only after production. This allows production parameters to be optimized in advance based on actual torque measurements taken at different load levels (no load, light load, heavy load), enabling the bearing unit to have reduced torque variation under subsequent load conditions without adding post-production inspection steps
Solution Approach 2:
The patent implements feedback by using the torque measurement results obtained during production to determine target values for production parameters. The measured torque values under different load conditions are fed back to adjust production parameters (such as assembly force, clearance, or preload), creating a closed-loop system where production quality is continuously optimized based on actual performance data
2Use of energy by moving object
If torque is reduced for high efficiency and low fuel consumption, then energy efficiency improves, but resistance to disturbance from changing load conditions deteriorates
Solution Approach 1:
The patent applies parameter changes by systematically varying production parameters based on torque measurements taken under different load conditions. By adjusting parameters such as assembly force, clearance, or preload according to the observed torque characteristics at no load, light load, and heavy load conditions, the bearing unit achieves optimized low torque for efficiency while simultaneously gaining adaptability to handle varying load conditions during operation
Data Source
AI summary
A producing method of a bearing unit includes: a step of measuring torque of a first bearing unit under each of a plurality of load conditions during production of the first bearing unit; a step of determining a target value of each of a plurality of production parameters based on of a load-torque relationship obtained from measurement results of the torque; and a step of producing a second bearing unit on the basis of the target value of each of the plurality of production parameters.