Tapered Bushing Removal Tool for Worn Torque Rod Assemblies
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Solution Overview
Problem
Torque rod assemblies with tapered bushing connectors are difficult to disassemble due to their inaccessible positions and heavy wear, making maintenance and repair challenging.
Innovation Solution
A press tool comprising a base assembly, drive pin, and guide sleeve, which applies a displacing force to remove the tapered bushing connector by axial rotation causing linear displacement, and in cases of excessive force, a weldment is formed to enhance the connection for removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional disassembly methods are used on torque rod assemblies, then the components can be removed, but the process becomes extremely difficult due to inaccessible positions and heavy wear
Solution Approach 1:
The patent introduces intermediary components including a press tool with drive pin and guide sleeve that mediates between the operator and the tapered bushing connector. The drive pin engages the bushing connector directly, while the guide sleeve provides structural support and alignment, enabling removal from inaccessible positions without requiring direct manual access to the connector
Solution Approach 2:
The disassembly tool is segmented into distinct functional components: a base assembly, a drive pin for engaging the bushing connector, and a guide sleeve for structural support. This segmentation allows each component to perform its specific function efficiently, with the drive pin applying localized force and the guide sleeve providing stability during the disassembly process
2Productivity
If a press tool with drive pin and guide sleeve is used, then disassembly efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent merges the drive mechanism and guidance function into a single integrated press tool assembly. The drive pin and guide sleeve work together as a unified system where the guide sleeve provides structural support while the drive pin applies the removal force, eliminating the need for separate alignment tools and reducing overall procedural complexity
Solution Approach 2:
The press tool assembly serves multiple functions simultaneously: the guide sleeve provides alignment and structural support, while the drive pin engages and applies force to the bushing connector. This multi-functionality allows a single tool to perform what would otherwise require multiple specialized tools, improving productivity without proportionally increasing complexity
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
Facilitates efficient disassembly of torque rod assemblies by providing a tool system that overcomes access and wear issues, ensuring effective maintenance and repair.
Implementation Method 1
a drive pin, which engages the base assembly such that axial rotation of the drive pin causes linear displacement of the drive pin relative to the base assembly
Data Source
AI summary
A torque rod disassembly system for removing a tapered bushing assembly comprising a tapered bushing connector having an internal threaded surface from a structural member defining a tapered opening comprising a housing, a bearing washer, a drive sleeve, a drive nut, and a tension bolt. The housing engages structural member and supports the bearing washer. The drive sleeve threadingly supports the drive nut. The tension bolt extends through the drive sleeve to engage the internal threaded surface of the tapered bushing connector. Rotation of the drive nut displaces the drive sleeve, the tension bolt, and the tapered bushing connector such that the tapered bushing connector is removed from the tapered opening in the structural member.