Cam Adjustable Shim Assembly for Suspension Geometry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle suspension systems lack an efficient mechanism to adjust the position and orientation of control arms relative to the vehicle body, particularly for fine-tuning wheel alignment and suspension geometry.
Innovation Solution
A cam adjustable shim assembly is introduced, comprising a bushing and a cam with an offset bolt, where the bolt's rotation causes the cam to rotate within the bushing, allowing for precise adjustment of the control arm's position relative to the vehicle body, thereby adjusting the wheel's camber and caster.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a cam adjustable shim assembly with offset bolt is used, then adjustment precision of control arm position is improved, but device complexity increases
Solution Approach 1:
The cam mechanism transforms the static bolt position into a dynamic adjustment system. Rotating the bolt about the second axis (which is offset from the first axis) causes the cam to rotate within the bushing, dynamically changing the control arm position. This allows precise adjustment while maintaining a relatively simple overall structure.
Solution Approach 2:
The offset between the first axis (bushing opening) and second axis (bolt) creates an eccentric cam mechanism. This dimensional offset transforms simple rotational motion into controlled positional adjustment, enabling precise control arm positioning through a straightforward rotational action on the bolt.
2Ease of operation
If cam adjustable shim assembly is introduced, then ease of operation for wheel alignment adjustment is improved, but device complexity increases
Solution Approach 1:
The dynamic cam mechanism allows the operator to adjust wheel alignment by simply rotating the bolt, which automatically translates into controlled movement of the control arm. This converts a potentially complex multi-step adjustment process into a single rotational operation, improving ease of operation.
Solution Approach 2:
The cam acts as an intermediary mechanism between the bolt (operated by the user) and the control arm (which needs adjustment). The offset cam configuration mediates the rotational motion of the bolt into precise positional changes of the control arm, simplifying the user's interaction with the system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables precise adjustment of the control arm's position, allowing for optimal wheel alignment and suspension geometry, enhancing the vehicle's handling and stability by allowing independent adjustment of camber and caster.
Implementation Method 1
The second axis is offset relative to the first axis such that the bushing opening is eccentric relative to the bolt. The bolt is fixed to the cam such that rotation of the bolt about the second axis causes the cam to rotate within the bushing about the first axis.
Data Source
AI summary
A cam adjustable shim assembly includes a bushing defining a bushing opening. The bushing opening extends along a first axis. The cam adjustable shim assembly further includes a cam disposed in the bushing opening and a bolt at least partially disposed within the cam. The bolt extends along a second axis. The second axis is offset relative to the first axis such that the bushing opening is eccentric relative to the bolt. The bolt is fixed to the cam such that rotation of the bolt about the second axis causes the cam to rotate within the bushing about the first axis.