Replaceable Coupling Cartridge for Linkage Assemblies
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Solution Overview
Problem
Existing mechanical coupling systems require the replacement of entire assemblies when only a coupling member is worn, leading to time-consuming and expensive repairs, as the coupling members are often integrally formed and replacement necessitates realignment of the vehicle's steering assembly.
Innovation Solution
A replaceable cartridge design for threaded rod components, allowing for independent replacement without disassembling the entire assembly, enabling installation from multiple angles and reducing the need for mirrored forgings, thus avoiding realignment and simplifying the replacement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coupling members are integrally formed as a single unit, then structural strength and reliability are improved, but replacement complexity and time increase when only the coupling portion is worn
Solution Approach 1:
The coupling assembly is divided into two separate components: a reusable housing member and a replaceable cartridge member. The housing contains threaded bores that receive the cartridge, which has external threading designed to engage with coupling members. This segmentation allows the cartridge to be replaced independently when worn, while the housing can be reused, thereby reducing replacement complexity and time while maintaining the reliability of the overall assembly
Solution Approach 2:
The threaded coupling portion is extracted as a separate replaceable cartridge that can be removed and replaced independently from the housing. This extraction allows the worn threading to be replaced without discarding the entire assembly, enabling selective replacement of only the worn component while preserving the reusable housing structure
2Reliability
If entire assembly is replaced when coupling is worn, then reliability is improved, but time consumption and cost increase
Solution Approach 1:
By segmenting the coupling into a reusable housing and a replaceable cartridge, the system enables replacement of only the worn cartridge portion rather than the entire assembly. This selective replacement significantly reduces the time required for maintenance while ensuring reliability through replacement of the worn component, eliminating the need to replace functional portions of the housing
3Ease of manufacture
If coupling members are integrally formed, then manufacturing simplicity is improved, but adaptability and versatility decrease
Solution Approach 1:
The cartridge is designed with standardized external threading that can engage with various types of coupling members (such as tie rod ends, drag link ends, and other linkage components). This universal design allows a single cartridge type to serve multiple functions and applications, increasing adaptability and versatility while maintaining manufacturing simplicity through standardized production processes
Data Source
AI summary
A universal replaceable cartridge for coupling together members of a linkage assembly. The cartridge includes a generally cylindrical body having first and second ends and first and second surfaces. A first threaded portion is formed on the first surface of the cylindrical body adjacent the first end and a second threaded portion is formed on the second surface of the cylindrical body adjacent the second end. The threaded portions allow the cartridge to be threadedly attached to first and second members of the linkage assembly.