Percussion Hammer for Universal Joint Bushing Assembly
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Solution Overview
Problem
The existing methods for assembling and disassembling universal joints are labor-intensive and require frequent clamping of the universal joint in a vice, making the process inefficient and difficult for universal joints of different sizes.
Innovation Solution
A device utilizing a stationary, adjustable percussion hammer with a guide and interchangeable striking tools allows for easy assembly and disassembly of universal joints by vibrating the bearing bush in or out of its bore, reducing manual effort and accommodating various sizes through adjustable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual assembly and disassembly methods are used with expelling tools and vices, then the process can be completed with simple equipment, but the process becomes labor-intensive and requires frequent clamping operations
Solution Approach 1:
The patent employs a percussive tool that generates mechanical vibrations to facilitate the assembly and disassembly of bearing bushes. The vibrations loosen the interference fit between the bearing bush and bearing bore, enabling easy removal without manual hammering or frequent clamping operations, thus improving both ease of operation and productivity
Solution Approach 2:
The invention replaces the manual mechanical system of hammering and vice-clamping with a powered percussive tool that automatically generates vibrations. This substitution eliminates the need for operators to manually clamp and hammer components, significantly reducing labor intensity and increasing assembly speed
2Reliability
If the universal joint is clamped in a vice for manual assembly, then the workpiece can be held securely, but the process requires frequent clamping and re-clamping for different sizes
Solution Approach 1:
The patent replaces the vice-clamping system with a percussive tool that can be manually held and positioned. The tool's self-contained design eliminates the need for external clamping fixtures, allowing operators to quickly adjust and secure different sized universal joints without time-consuming clamping and re-clamping operations
Solution Approach 2:
The invention introduces dynamic adaptability by using a handheld percussive tool that can be easily repositioned and adjusted for different universal joint sizes. This dynamic approach replaces the static vice system, enabling rapid setup changes and eliminating time losses associated with re-clamping operations for different component sizes
3Manufacturing precision
If multiple specialized tools are used for different assembly steps, then each operation can be performed precisely, but the device complexity increases
Solution Approach 1:
The patent employs a single percussive tool that performs multiple functions: it drives bearing bushes into bearing bores, removes bearing bushes, and can accommodate different universal joint sizes through adjustable positioning. This multi-functional tool replaces multiple specialized tools, maintaining assembly precision while significantly reducing device complexity and the number of tool changes required
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
The device enables efficient and effortless mounting or dismounting of bearing bushes without the need for frequent clamping, allowing for quick changeovers between different-sized universal joints, enhancing productivity and simplifying the process.
Implementation Method 1
a striking tool which is driven vibrating in the direction of a main axis and is used for assembly or disassembly of the bearing bush
Implementation Method 2
The hammer can be designed to be adjustable in height relative to the guide. For this purpose, the percussion hammer can be accommodated in a linearly adjustable or pivotable manner
Implementation Method 3
The hammer can be designed to be adjustable in height relative to the guide. For this purpose, the percussion hammer can be accommodated in a linearly adjustable or pivotable manner
Implementation Method 4
The hammer can be designed to be adjustable in height relative to the guide. For this purpose, the percussion hammer can be accommodated in a linearly adjustable or pivotable manner
Data Source
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AI summary
The invention relates to a device for mounting and dismounting a bearing bushing into or from a bearing bore of a universal joint, comprising a stationary impact hammer 1, a guide 5 against which the universal joint can be supported during mounting or dismounting, and an impact tool 3 which is vibratingly driven by the impact hammer 1 and serves for mounting or dismounting the bearing bushing.