Rotation Sensor Axial Gap Adjustment Using Screw Positioning
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Solution Overview
Problem
Existing rotation detection devices face challenges in simplifying the adjustment of the axial gap between the detection and detected parts, which affects detection characteristics and requires complex processes.
Innovation Solution
A rotation detection device with a screw mechanism involving a female screw portion in the housing and a male screw portion in the installation member, allowing for adjustable axial gap intervals by changing the screwing amount, simplifying the adjustment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the axial gap interval is adjusted to achieve target detection characteristics, then detection precision is improved, but device complexity and adjustment difficulty increase
Solution Approach 1:
The patent applies the dynamics principle by implementing an adjustable axial gap mechanism that allows the detection part and detected part to be positioned at variable intervals. The adjustment mechanism enables dynamic modification of the axial gap distance, allowing optimization of detection precision for different application requirements while maintaining operational flexibility.
Solution Approach 2:
The patent applies the parameter changes principle by providing an adjustment mechanism that modifies the axial gap parameter. By changing the distance parameter between the detection part and detected part, the system can optimize detection characteristics for different operational conditions, achieving target detection precision through controlled parameter variation.
2Measurement precision
If the axial gap interval is adjusted to achieve target detection characteristics, then detection precision is improved, but adjustment time and labor increase
Solution Approach 1:
The adjustable mechanism enables dynamic modification of the axial gap, allowing quick adaptation of the detection system to different precision requirements without time-consuming reconfiguration or disassembly operations.
Solution Approach 2:
The adjustment mechanism is pre-configured within the device structure, allowing the axial gap to be adjusted at any time during operation. This preliminary preparation of the adjustment capability eliminates the need for complex setup procedures or extended calibration time when precision requirements change.
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
The solution enables easy and precise adjustment of the axial gap, reducing processing costs and complexity, while ensuring reliable fixation and accurate interval adjustment.
Implementation Method 1
a female screw portion that is provided in one of the housing and the installation member, and a male screw portion that is provided in the other of the housing and the installation member and screwed into the female screw portion, in which the female screw portion and the male screw portion form a screw mechanism which is configured to change relative positions in the axial direction of the housing and the installation member by changing an amount of screwing of the male screw portion with respect to the female screw portion
Data Source
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AI summary
Provided is a rotation detection device in which it is possible to simplify the work of adjusting the interval of an axial gap. A rotation detection device (10) includes a housing (22) that accommodates a rotating body (12), a detected part (30) that rotates integrally with the rotating body (12), a detection part (34) that faces the detected part (30) in an axial direction (X) with an axial gap (32) interposed therebetween, an installation member (36) on which the detection part (34) is installed, a female screw portion (46) that is provided in one of the housing (22) and the installation member (36), and a male screw portion (48) that is provided in the other of the housing (22) and the installation member (36) and screwed into the female screw portion (46).