Rotation Sensor Junction Body Spacing Design
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Solution Overview
Problem
Existing rotation detecting devices face challenges in design flexibility and accuracy due to the fixed positioning of the rotor relative to the rotation drum, leading to potential detection errors and interference with other components.
Innovation Solution
A rotation detecting device design where a rotor is spaced from the rotation member and supported by a housing, with a junction body that is separable and coaxial with the rotational axis, allowing for improved spacing and alignment accuracy, reducing detection errors and enhancing design freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rotor is fixed to the rotation drum, then the rotation detection can be implemented, but the design freedom is reduced and detection accuracy may deteriorate due to space constraints and positional variation
Solution Approach 1:
The rotation detection system is segmented into separate components: the rotation drum and the rotation sensor are independent of each other, connected only through the junction body. This segmentation allows independent optimization of each component's design and positioning, improving both design freedom and detection accuracy.
Solution Approach 2:
A junction body is introduced as an intermediary component between the rotation drum and the rotation sensor. The junction body transmits rotational movement from the drum to the sensor's rotor while allowing the sensor to be positioned at a distance, eliminating direct coupling constraints and improving both design flexibility and detection precision.
2Volume of moving object
If the rotation sensor is positioned close to the rotation drum, then the structure is compact, but the rotor and detector positional relation varies leading to detection errors
Solution Approach 1:
The junction body serves as a mediator that enables the rotation sensor to be positioned away from the rotation drum while maintaining reliable rotational coupling. This intermediary structure eliminates the need for close positioning, allowing the sensor to be placed where it can maintain a stable positional relationship with the rotor, thereby improving detection accuracy.
3Adaptability or versatility
If the rotor is spaced from the rotation member, then design freedom is improved, but the rotational movement transmission may become less reliable
Solution Approach 1:
The junction body acts as a reliable intermediary for transmitting rotational movement over a distance. It provides a positive mechanical coupling that ensures reliable transmission of rotation from the drum to the sensor rotor, even when the sensor is spaced away from the drum for design flexibility.
Data Source
AI summary
A rotation detecting device has a junction body, and a rotation sensor. A rotor of the rotation sensor is spaced from a change drum in the axis direction, and is rotatable about the rotational axis. The rotating position of the rotor is detected by a detector of the rotation sensor. The junction body is separatable from the change drum and the rotation sensor, is rotatable about the rotational axis, and transmits the rotative movement of the change drum to the rotor.