Segmented Shaft Driving Tool for Tight-Space Shaft Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Commonly constructed jack screw actuated gear pullers and shaft driving tools are mechanically cumbersome and difficult to operate, especially in tight spaces, making them impractical for use in limited working environments.
Innovation Solution
A multiply segmented sleeve apparatus with a drive gear on the upper segment, a rotatably supported drill-actuated gear on the medial segment, and shaft engaging structures on the lower segment, featuring non-circular pin-and-socket joints and helically threaded components to facilitate efficient axial driving and removal of shafts from apertured members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional jack screw actuated gear puller is used, then the shaft can be removed from the aperture, but the tool becomes mechanically cumbersome and difficult to operate in tight spaces
Solution Approach 1:
The tool is divided into multiple segments including a multiply segmented sleeve with upper, lower, and medial segments that can rotate relative to each other. This segmentation allows the tool to be operated in tight spaces while maintaining the functional capability to remove shafts from apertures.
Solution Approach 2:
The upper and lower sleeve segments are nestingly received within the medial segment, creating a compact nested structure. This nesting arrangement reduces the overall size and complexity of the tool while preserving its shaft removal functionality, making it easier to operate in confined spaces.
2Ease of operation
If a traditional jack screw actuated gear puller is used, then the shaft can be removed from the aperture, but the tool becomes difficult to operate in tight locales with limited working space
Solution Approach 1:
The tool is divided into multiple segments including a multiply segmented sleeve with upper, lower, and medial segments that can rotate relative to each other. This segmentation allows the tool to be operated in tight spaces while maintaining the functional capability to remove shafts from apertures.
Solution Approach 2:
The upper and lower sleeve segments are nestingly received within the medial segment, creating a compact nested structure. This nesting arrangement reduces the overall size and complexity of the tool while preserving its shaft removal functionality, making it easier to operate in confined spaces.
3Ease of operation
If a drill actuated mechanism is used, then the tool can be easily operated in confined spaces, but the mechanism becomes more complex with multiple gears and segmented components
Solution Approach 1:
The tool is divided into multiple segments including a multiply segmented sleeve with upper, lower, and medial segments that can rotate relative to each other. This segmentation allows the tool to be operated in tight spaces while maintaining the functional capability to remove shafts from apertures.
Solution Approach 2:
The manual jack screw actuation mechanism is replaced with a drill actuated mechanism that uses rotational power from a drill to drive the shaft removal process. This substitution reduces the mechanical complexity of the actuation system while improving ease of operation in confined spaces.
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 tool effectively drives and removes shafts from apertured members, such as gears and axle mounts, by utilizing a drill-powered mechanism that rotates the segmented sleeve and screw shaft, allowing for secure engagement and extraction in confined spaces.
Implementation Method 1
A screw shaft which is helically threadedly mounted within the lower segment's helically threaded hollow bore
Implementation Method 2
the upper sleeve segment is nestingly received within the upper end of the hollow bore of the medial segment... the lower segment of the sleeve is nestingly received within the lower end of the hollow bore of the medial section, such receipt forming a lower rotation stopping pin-and-socket joint component
Data Source
AI summary
A tool for driving a shaft within an apertured member, the tool incorporating a segmented sleeve having upper, lower, and medial segments, each segment having upper and lower ends, a hollow bore of the lower segment being helically threaded; a shaft biasing screw mounted within the lower segment's hollow bore, upper and lower joints, the upper joint connecting the upper end of the screw with the upper segment, and the lower joint connecting the medial segment with the lower segment; a first gear attached to the upper segment; a support frame attached to the medial segment; a second gear mounted rotatably upon the support frame, the second gear being positioned for rotating the first gear; a rotary power input stem fixedly attached to the second gear; and a clamp or hook arms adapted for positioning the apertured member beneath the screw's shaft biasing lower end.