Segmented Extension Tool for Angled-Path Remote Inspection
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Solution Overview
Problem
Robotic arm assemblies are often cost-prohibitive and overly complex for certain applications, making it difficult to reach remote locations efficiently.
Innovation Solution
A selectively flexible extension tool with sequentially arranged links and a support member, featuring bends and windows, allows for insertion into components with angled openings and reduces friction, enabling access to remote locations while facilitating inspection and maintenance operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If robotic arm assemblies are used to reach remote locations, then access capability is improved, but cost and device complexity increase significantly
Solution Approach 1:
The extension tool is divided into multiple sequentially arranged links that can be individually positioned and controlled. Each link can be independently adjusted to navigate complex geometries, allowing the tool to reach remote locations through segmented, modular components rather than a single complex robotic arm.
Solution Approach 2:
The extension tool uses a simple, cost-effective design with basic mechanical components (links, wheels, bends) that can be easily manufactured and replaced if needed, replacing the need for expensive robotic arm assemblies while maintaining the capability to reach remote locations.
2Length of moving object
If robotic arm assemblies are used to reach remote locations, then access capability is improved, but manufacturing cost increases
Solution Approach 1:
The tool uses simple, segmented links that can be manufactured using conventional machining processes, avoiding the need for expensive robotic arm components. Each link is a basic mechanical element that is straightforward to produce.
Solution Approach 2:
The extension tool employs inexpensive mechanical components that can be easily manufactured and replaced, providing a cost-effective alternative to expensive robotic arm assemblies while achieving the same functional goal of reaching remote locations.
3Reliability
If multiple wheels are used in the extension tool, then support and stability are improved, but friction and device complexity increase
Solution Approach 1:
The design extracts the essential support function to a single strategically positioned wheel at the distal end, removing unnecessary wheels that would increase friction. This single wheel provides sufficient support and stability for the application while minimizing energy loss.
Solution Approach 2:
Instead of adding multiple wheels to increase support, the design inverts the approach by using a minimal number of wheels (single wheel) and achieving stability through the tool's geometry, bends, and insertion mechanics rather than through multiple contact points.
4Strength
If the extension tool has a rigid structure, then structural strength is improved, but ability to navigate angled openings and reduce friction deteriorates
Solution Approach 1:
The extension tool incorporates bends and articulated links that allow the structure to dynamically adjust its configuration during insertion, enabling navigation through angled openings while maintaining structural integrity. The tool transitions from a rigid state to a more flexible insertion state.
Solution Approach 2:
The tool incorporates curved bends and rounded transitions in its link structure, allowing it to navigate angled openings and curved paths within the component. The curvature enables the tool to conform to the geometry of the insertion path while maintaining structural strength.
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 extension tool provides positive control of direction, reduces inspection time, improves quality, and lowers production costs by using a single wheel for reduced friction, allowing access to remote locations within components like gas turbine engines.
Implementation Method 1
using a single wheel for reduced friction
Data Source
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AI summary
An extension tool (100) including a base link (124) comprising the proximal end (112), wherein the base link (124) includes a first bend (115). The extension tool (100) includes a transition section (104) coupled to the base link (124) and including a second bend (125) and a plurality of sequentially arranged links (106) coupled to the transition section (104) and moveable relative to one another and including a third bend (135). The extension tool (100) includes a support member (130) comprising the distal end (122), the support member (130) including a wheel (132) disposed at the distal end (122), where the support member (130) includes a fourth bend (145). The first bend (115) of the base link (124) extending in a first direction from a longitudinal centerline (CL), while the second bend (125) and the fourth bend (145) extend in a second direction substantially along the longitudinal centerline (CL) bending downward, and the third bend (135) of the plurality of sequentially arranged links (106) extends in a third direction from the longitudinal centerline (CL) bending upward.