Pivotable Axle Assemblies for Stand-On Vehicle Height Adjustment
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Solution Overview
Problem
Existing stand-on vehicle designs face challenges in achieving a compact and adjustable drive system that simplifies installation and allows simultaneous adjustment of vehicle frame and stand-on platform heights, while maintaining the stability and rigidity of the vehicle.
Innovation Solution
A pivotable drive apparatus with a hydrostatic transmission and separable axle assemblies that can be easily connected and adjusted, allowing for independent manipulation of the vehicle's sides for improved installation and alignment, and enabling simultaneous or separate height adjustments of the vehicle frame and stand-on platform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drive system is designed to be compact and adjustable, then installation is simplified and height adjustment is enabled, but the stability and rigidity of the vehicle may be compromised
Solution Approach 1:
The drive system is divided into separable axle assemblies that can be independently manipulated during installation. Each axle assembly can be positioned and aligned separately before being connected to the hydrostatic transmission, simplifying the installation process while maintaining overall structural integrity through proper connection mechanisms.
Solution Approach 2:
The system incorporates pivotable connections that allow the axle assemblies to be adjusted to different positions and angles. This dynamic capability enables height adjustment of the vehicle frame and stand-on platform while maintaining stability through controlled pivot points that preserve structural rigidity during operation.
2Ease of manufacture
If the axle assemblies are made separable for easier installation, then assembly is simplified, but the structural rigidity may be reduced
Solution Approach 1:
The axle assemblies are designed as separable units that can be independently assembled and then connected to the hydrostatic transmission. This segmentation allows for easier manufacturing and assembly while the connection mechanisms are designed to maintain structural rigidity when assembled.
Solution Approach 2:
The separable axle assemblies are designed to merge into a rigid structure when connected to the hydrostatic transmission and to each other. The connection points are engineered to provide strong, rigid joints that restore full structural integrity after the modular assembly process.
3Adaptability or versatility
If the vehicle frame and stand-on platform heights are adjusted simultaneously, then versatility is improved, but the complexity of the adjustment mechanism increases
Solution Approach 1:
The system uses pivotable connections that enable dynamic adjustment of both the vehicle frame height and stand-on platform height. The pivot points are designed to allow independent adjustment of each component while maintaining proper alignment and structural integrity throughout the adjustment range.
Solution Approach 2:
The pivotable connection mechanism serves multiple functions: it allows height adjustment of the vehicle frame, enables height adjustment of the stand-on platform, and maintains structural support during both adjusted positions. This multi-functionality achieves versatility without requiring separate complex mechanisms for each adjustment function.
Data Source
AI summary
A vehicle transmission housing has first and second axle housings pivotably connected to opposite ends of the transmission housing and a stand-on platform may be connected to the assembly. A first gear train in the first axle housing drives a first axle having a first axis of rotation. A second gear train is disposed in the second axle housing drives a second axle having a second axis of rotation collinear with the first axis of rotation. The axle housings are both capable of pivoting about the transmission housing about a third axis that is parallel to the first and second axes. The first and second axle housings may also be separately rigidly or flexibly connected to one another. This assembly permits adjustment of the ground heights of the platform with respect to a vehicle frame.