Gear Puller Detent Arms for Parallel Tension Alignment
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Solution Overview
Problem
Conventional gear puller tools face issues with maintaining parallel tension forces and radial adjustment, leading to difficulty in engaging and removing gears or wheels from their shafts, requiring repeated adjustments and skilled operation.
Innovation Solution
A gear puller assembly with a yoke and threaded jack shaft, featuring puller arms with detent assemblies and ridges for angular positioning, and a shoulder for secure engagement with the yoke, allowing for efficient and precise alignment and removal of gears or wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If links and pivots are provided in the pulling implements to accommodate different sizes of gears or wheels, then the tool becomes universally adaptable, but the tension forces in the pulling implements are not parallel to the compression force in the jack shaft, causing difficulty in maintaining engagement
Solution Approach 1:
The pulling implement is divided into separate puller arms that can be independently positioned and locked at specific angles relative to the yoke. Each puller arm can be selectively engaged with the yoke at predetermined angular positions, allowing the operator to adjust the radial position of each arm independently while maintaining parallel force alignment with the jack shaft.
Solution Approach 2:
The puller arms are made adjustable and reconfigurable rather than fixed, allowing the tool to adapt to different gear sizes and positions. The detent assembly enables dynamic repositioning of puller arms at specific angular intervals, providing both adaptability for different applications and stability for maintaining engagement during operation.
2Adaptability or versatility
If the puller tool is designed for universal use with different sizes of wheels or gears, then it can accommodate various applications, but considerable skill and dexterity are required to properly assemble and position the tool
Solution Approach 1:
The detent assembly pre-establishes correct angular positions for the puller arms relative to the yoke and jack shaft. The ridges on the puller arms align with slots in the yoke at predetermined angles, automatically guiding the operator to the correct positioning without requiring complex manual alignment or specialized skill.
Solution Approach 2:
The detent assembly acts as an intermediary mechanism between the puller arms and the yoke, providing a simple engagement interface. The spring-loaded detent ball automatically engages with the ridges when the puller arm is inserted, providing tactile feedback and ensuring proper positioning without requiring precise manual alignment.
3Device complexity
If limited radial adjustment is provided in the puller implements, then the structure remains simple, but the tension forces cannot be aligned parallel to the compression force in the jack shaft, causing the puller to lose grip
Solution Approach 1:
The puller arms are positioned at specific asymmetric angular intervals relative to the yoke, with the detent assembly providing discrete angular positioning options. This asymmetric configuration allows the operator to select the optimal angular position for each application, enabling parallel alignment of tension and compression forces while maintaining simple structural elements.
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 solution enables easier and more reliable engagement and removal of gears or wheels by maintaining locked angular positions and parallel tension forces, reducing the need for repeated adjustments and improving user dexterity.
Implementation Method 1
Each of the detent assemblies is configured for engagement with respective puller arms to cause the puller arm to maintain a locked position defined at an angle between the respective puller arms and the yoke
Implementation Method 2
The detent assembly includes a spring biased detent ball
Implementation Method 3
a threaded jack shaft threadably received through the yoke and having a pressing surface on an end thereof
Implementation Method 4
Rotation of the jack shaft causes the pulling implements to draw the wheel or gear toward the jack shaft for removal from the shaft
Implementation Method 5
Each respective puller arm defines a plurality of ridges that are configured to engage with a respective detent assembly
Data Source
AI summary
A gear puller assembly includes a yoke that defines a plurality of puller arm receiving interfaces, a threaded jack shaft threadably received through the yoke and having a pressing surface on an end thereof, and a plurality of puller arms, wherein each respective puller arm is configured for being selectively engageable with a respective puller arm interface of the yoke. A detent assembly extends from the yoke through each of the puller arm receiving interfaces, each of the detent assemblies configured for engagement with respective puller arms to cause the puller arm to maintain a locked position defined at an angle between the respective puller arms and the yoke.