Rotatable Inner Housing Bushing for Stabilizer Bar Angle Adjustment
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Solution Overview
Problem
The existing modularized stabilizer bar assemblies face difficulties in adjusting the angle of the stabilizer bar due to non-rotatable bushing components, leading to suboptimal vehicle operation and increased manufacturing complexity for different vehicle types and specifications.
Innovation Solution
A bushing with rotatable inner elements, comprising an outer housing, outer rubber, first and second inner housings, inner rubber, and a retainer ring, allows for adjustable angles by relative rotation of the inner housings, with a rotation stopper mechanism to prevent distortion and maintain the adjusted position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double housing-type bushing with multiple housings and rubbers is used to reduce noise and increase roll stiffness, then noise reduction and roll stiffness are improved, but the ability to adjust the angle between the rod and stabilizer bar is lost
Solution Approach 1:
The bushing is divided into multiple independent housings (outer housing, first inner housing, second inner housing) that can rotate relative to each other. This segmentation allows each housing to perform its noise reduction function while enabling angle adjustment through relative rotation, resolving the contradiction between structural integrity and adaptability.
Solution Approach 2:
The bushing transitions from a static structure to a dynamic one where the inner housings can rotate relative to the outer housing. This dynamic capability enables angle adjustment while maintaining the noise reduction and roll stiffness properties of the double housing structure, simultaneously achieving both reliability and adaptability.
2Ease of manufacture
If the stabilizer bar assembly is manufactured with fixed angle components for easy assembly, then assembly convenience is improved, but the angle is not optimized for vehicle operation and the bushing deforms
Solution Approach 1:
The bushing is pre-assembled with the stabilizer bar in a standard configuration for easy manufacturing and assembly. However, the rotatable inner housings provide the capability to subsequently adjust the angle to the optimized position, combining the benefits of easy assembly with operational optimization without deformation.
3Adaptability or versatility
If different types of stabilizer bar assemblies are manufactured for different vehicle types and specifications, then vehicle-specific optimization is achieved, but manufacturing complexity and productivity are reduced
Solution Approach 1:
A single universal bushing design with rotatable inner housings can be used across different vehicle types and specifications. The bushing can be assembled once and then adjusted to different angles to accommodate various vehicle requirements, eliminating the need to manufacture different types of assemblies and significantly improving productivity while maintaining adaptability.
Data Source
AI summary
A bushing having rotatable inner elements which includes a plurality of housings and a plurality of rubbers and into which a stabilizer bar is inserted to be mounted on a vehicle body, may include an outer housing connected to a lower end of a rod connected to the vehicle body, an outer rubber attached on the inner surface of the outer housing, a first inner housing disposed in the outer rubber, a second inner housing disposed in the first inner housing to be rotated with respect to the first inner housing, an inner rubber disposed in the second inner housing, and being in contact with a surface of the stabilizer bar, and a retainer ring formed in a partially-cut ring shape such that the diameter thereof is increased, disposed between the first and second inner housings, and pressurizing the second inner housing toward the inner rubber.