U-Bolt Strain Pattern Detection for Proper Nut Fastening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing techniques cannot confirm the fastening state of the shaft part of a U-bolt by a nut, leading to potential breakage due to excessive stress from improper attachment.
Innovation Solution
A U-bolt with strain detection patterns on its shaft parts, accompanied by a detection device that generates images before and after nut adjustment, detects strain, and outputs fastening information to ensure proper attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If strain detection patterns are attached to the shaft parts of the U-bolt, then the fastening state can be confirmed, but the device complexity increases
Solution Approach 1:
The patent uses digital imaging to create a visual copy of the strain detection pattern on the U-bolt shaft. By capturing images of the pattern before and after fastening and comparing the displacement, the system determines fastening state without requiring complex sensor electronics or signal processing hardware on the bolt itself.
Solution Approach 2:
The strain detection pattern acts as an intermediary between the mechanical fastening process and the detection system. Instead of directly measuring physical quantities with complex sensors, the pattern translates shaft deformation into visible displacement that can be captured by standard imaging devices, simplifying the detection system.
2Ease of operation
If the U-bolt is attached in an inclined manner to match structural requirements, then the ease of operation improves, but the reliability decreases due to excessive stress
Solution Approach 1:
The patent implements feedback by detecting the strain detection pattern displacement and providing information about the fastening state. This allows workers to adjust the nut fastening to achieve the desired fastening force, ensuring reliable attachment even when the U-bolt is installed in an inclined manner to match structural requirements.
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
Enables workers to confirm and ensure the proper fastening state of U-bolt shaft parts by a nut, preventing breakage from excessive stress and ensuring secure attachment.
Implementation Method 1
a strain detection pattern is attached on at least a part of at least one shaft part of the pair of shaft parts... generating a first observation image by imaging a pattern region which is the at least part of the at least one shaft part to which the strain detection pattern is attached, generating a second observation image by imaging the pattern region after fastening of the shaft part by the nut is adjusted, detecting a strain of the pattern region on the basis of the first observation image and the second observation image
Data Source
AI summary
A U-bolt (10) according to the present disclosure is a U-bolt (10) including a pair of shaft parts (11) arranged in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (12) connecting one end of each of the pair of shaft parts (11) and in which a strain detection pattern is attached to at least a part of at least one shaft part (11) of the pair of shaft parts (11).