Transmission Sensor Mounting Direction for Maintainability
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Solution Overview
Problem
The existing transmission apparatus has poor maintainability and machinability due to the perpendicular installation of shift spindle and shift drum sensors, making them difficult to attach, detach, and machine.
Innovation Solution
The shift spindle sensor and shift drum sensor are mounted in the same direction through dedicated holes in the case, allowing for easy installation, removal, and servicing, with the sensors being oriented parallel to each other to minimize interference and facilitate machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shift spindle sensor and shift drum sensor are installed perpendicular to each other on different mount seat faces, then the sensors can detect their respective components, but the maintainability and machinability deteriorate due to difficult attachment, detachment, and machining operations
Solution Approach 1:
The patent merges the mounting directions of the shift spindle sensor and shift drum sensor by providing both mount seat faces on the same surface of the case. This allows both sensors to be accessed from the same side, simplifying maintenance operations and improving ease of repair while maintaining their independent detection functions.
2Reliability
If the shift spindle sensor and shift drum sensor are installed perpendicular to each other on different mount seat faces, then the sensors can detect their respective components, but the manufacturing precision deteriorates due to poor machinability of the mount seat faces
Solution Approach 1:
The patent combines both sensor mount seat faces on the same surface of the case, allowing machining operations to be performed in a single direction. This improves manufacturing precision by eliminating the complexity of machining perpendicular surfaces and facilitates easier attachment and detachment of sensors during assembly and maintenance.
Data Source
AI summary
In a vehicle engine transmission apparatus, a shift spindle sensor is mounted in and extends through a through spindle sensor mount hole defined in a spindle sensor mount seat formed on a portion of a case, and a shift drum sensor is mounted in and extends through a through drum sensor mount hole defined in a drum sensor mount seat formed on a portion of the case. The direction in which the shift spindle sensor is mounted and the direction in which the shift drum sensor is mounted are same as each other. The shift spindle sensor and the shift drum sensor can be easily attached to and detached from their mount seats and can be well serviced for excellent maintainability, and the mount seats can be machined with ease and excellent machinability.