Steering Drive Mounting on Main Frame for Weight Balance
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Solution Overview
Problem
In vehicles with a drive source for steering the front wheel, there is a need for a simple structure to support the drive source effectively, ensuring good weight balance and protection while allowing easy power transmission and obstacle-free turning.
Innovation Solution
A vehicle design featuring a steering swivel unit supported on a head pipe with a drive source mounted on a main frame extending rearwardly, utilizing upward extensions and a cross member for support, and including a speed reducer and torque changing mechanisms to facilitate easy turning and weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive source is mounted on the head pipe, then the steering mechanism can be compact, but the drive source is not well supported and weight balance is poor
Solution Approach 1:
The drive source is relocated from the head pipe area to the main frame area, utilizing the vertical dimension and rearward extension of the main frame to provide a stable mounting position. This dimensional relocation allows the drive source to be supported by the robust main frame structure rather than the narrower head pipe, improving support quality while maintaining structural simplicity.
2Stability of the object's composition
If the drive source is positioned centrally and rearwardly, then weight balance improves, but the power transmission path becomes longer
Solution Approach 1:
The power transmission system incorporates a torque changing mechanism that can dynamically adjust the transmission characteristics. This allows the system to compensate for the increased transmission path length by optimizing torque delivery, ensuring that the centrally-positioned drive source maintains effective power transmission despite the longer distance to the steering swivel unit.
3Reliability
If upward extensions are added to support the drive source, then support quality improves, but the structure becomes more complex
Solution Approach 1:
The upward extensions serve multiple functions: they provide structural support for the drive source, establish the central positioning for weight balance, and create mounting surfaces for the drive source and associated mechanisms. By making these extensions multi-functional, the design improves support quality without proportionally increasing structural complexity.
4Object-affected harmful factors
If a cross member is added to interconnect upward extensions, then drive source protection improves, but device complexity increases
Solution Approach 1:
The cross member is integrated with the existing upward extensions and main frame structure, merging multiple structural elements into a unified support and protection system. This integration provides drive source protection while minimizing the increase in overall structural complexity by combining functions rather than adding separate protective elements.
Data Source
AI summary
A vehicle includes a vehicle frame, a steering swivel unit supported on a head pipe of the vehicle frame and angularly movable about a steering axis, a front wheel angularly movable in unison with the steering swivel unit, and an automatic steering mechanism for angularly moving the steering swivel unit, wherein the vehicle frame includes a main frame extending rearwardly from the head pipe, and the steering mechanism includes a steering motor for angularly moving the steering swivel unit, the steering motor being supported on the main frame.