Transmission Gear Structure Assembly Sequence Inversion
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Solution Overview
Problem
Conventional transmission systems require significant time and effort for assembly and maintenance due to complex component arrangements, particularly when attaching gears to the input shaft, which complicates the assembly workability and maintainability.
Innovation Solution
The gear structure is redesigned with a first gear body and a boss part that are axially non-movably and rotatably fit onto the transmission shaft, allowing the second gear to be attached from the opposite side, reducing the number of components inside the cylindrical part and simplifying assembly by positioning components before attaching the second gear, and enabling easy detachment and attachment of gears during maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the press body and positioning components are attached after the high gear is assembled, then the gear structure can be completed, but the assembly workability and checking workability require significant time and effort
Solution Approach 1:
The press body and positioning components are attached to the input shaft before the high gear is assembled. This preliminary action allows the components to be positioned and secured in advance, eliminating the need for complex post-assembly operations and significantly reducing assembly time and effort.
2Ease of operation
If the press body is attached from the left side after high gear assembly, then positioning is achieved, but access to the inner side of the cylindrical part becomes difficult
Solution Approach 1:
Instead of attaching the press body from the left side after high gear assembly (the conventional approach), the invention inverts the sequence by attaching the press body from the right side before the high gear is assembled. This inversion provides easier access to the inner side of the cylindrical part and simplifies the overall assembly process.
Data Source
AI summary
A transmission includes: a counter low-gear with a low-gear body and a boss fit into the low-gear body so that driving force can be transmitted, and provided with dog-claws and an expanded part at one axial end and that is axially non-movably and rotatably fit around a counter shaft. A counter high-gear with a high-gear body is arranged in the one side from the low-gear body and with a cylinder including dog-claws at the one axial end thereof and is axially non-movably and rotatably fit around the boss. A shift sleeve is axially movably spline-fit around the counter shaft, and is arranged in the one side from the counter high-gear and that includes dog-claws capable of engaging with the dog-claws of the gears. The high-gear body is axially non-movably arranged between the low-gear body and the expanded part.