Indexable Sleeve Axle Alignment Adjustment Mechanism
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Solution Overview
Problem
Current axle alignment systems fail to effectively adjust camber, toe, and thrust, leading to irregular tire wear, especially in vehicles carrying heavy loads and navigating uneven road surfaces, due to the inherent flexing of axles under load and varying road conditions.
Innovation Solution
A system comprising a sleeve fitted over the axle spindle with a locking mechanism, allowing for discrete adjustments of wheel alignment by rotating the sleeve relative to the spindle, utilizing a plurality of apertures on both the sleeve and flange to provide a range of predetermined adjustments, ensuring precise control over camber, toe, and thrust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the axle stiffness is increased to resolve camber issues under load, then camber stability is improved, but manufacturing cost and material usage increase
Solution Approach 1:
The invention introduces a dynamic adjustment mechanism that allows the camber angle to be modified after the axle is manufactured. The adjustable camber block enables the camber angle to be changed based on loading conditions, replacing the need for a permanently stiffer axle design.
Solution Approach 2:
The invention changes the camber angle parameter dynamically through an adjustable camber block that can be repositioned. This allows the camber angle to be optimized for different load conditions without changing the fundamental axle structure or material properties.
2Manufacturing precision
If the axle is designed to be perfectly straight with zero camber and toe, then manufacturing precision is improved, but performance under load deteriorates due to axle flexing
Solution Approach 1:
The invention makes the previously static axle alignment dynamic by introducing an adjustable camber block. This allows the alignment to adapt to loading conditions while the axle itself maintains its simple, precisely manufacturable straight geometry.
Solution Approach 2:
The invention separates the axle structure from the alignment adjustment function. The axle remains a simple, straight component while the camber block provides the necessary alignment adjustments, allowing each component to be optimized independently.
3Measurement precision
If discrete predetermined adjustment positions are provided for wheel alignment, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The invention divides the continuous adjustment range into discrete predetermined positions using indexed apertures. This segmentation provides precise alignment control while maintaining a simple mechanical structure without requiring complex control systems.
Solution Approach 2:
The invention uses an indexing mechanism with apertures and detents as an intermediary between the adjustment input and the camber block position. This provides precise discrete positioning while keeping the overall mechanism simple and mechanically straightforward.
Data Source
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AI summary
A system for wheel alignment is provided including adjustments to camber, toe, and thrust. A sleeve is fitted over the spindle of an axle. Rotation of the sleeve relative to the spindle provides for adjustments to wheel alignment while a locking feature such as e.g., a pin, is used to maintain the selected position of the sleeve relative to the spindle. The available positions of the sleeve relative to the spindle are predetermined in order to provide for discrete, known adjustments to the alignment of the wheel. Numerous positions can be provided based on the range and magnitude of adjustability selected.