Half-Ring Gear Mechanism for 360° Ultrasonic Pipe Inspection
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Solution Overview
Problem
Conventional ultrasonic inspection methods for pipes are costly and labor-intensive, especially when inspecting hard-to-reach locations, and require significant manual effort, which limits their effectiveness and efficiency.
Innovation Solution
A half ring gear mechanism integrated with robotic crawlers and drones for ultrasonic pipe inspection, featuring a driven gear that rotates 360 degrees around the pipe, allowing continuous ultrasonic testing with a single probe, and a dual-motor drive system for seamless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ultrasonic inspection methods are used for pipes in difficult-to-reach locations, then inspection coverage is achieved, but labor costs and safety risks increase significantly due to required scaffolding and manual intervention
Solution Approach 1:
The patent replaces manual inspection systems with an automated robotic crawler that moves along the pipe using tracked wheels. The robotic system eliminates the need for scaffolding and manual intervention, allowing inspection of difficult-to-reach locations while reducing labor costs and safety risks.
Solution Approach 2:
The robotic crawler is self-propelled and autonomously navigates the pipe structure, carrying its own ultrasonic inspection equipment. The system performs self-locomotion and self-inspection without external assistance, eliminating the need for human operators to access hazardous locations.
2Reliability
If a full circumferential housing is used to enclose the pipe for inspection, then complete coverage is achieved, but device complexity and size increase
Solution Approach 1:
The housing is designed as a segmented structure with an opening rather than a complete enclosure. The ultrasonic inspection device is divided into functional modules (transducers, gear mechanism, housing sections) that can operate independently, simplifying the overall structure while maintaining inspection effectiveness.
Solution Approach 2:
The patent uses a half-ring gear mechanism that provides sufficient circumferential coverage for effective ultrasonic inspection without requiring a complete 360-degree enclosure. The partial housing structure achieves the necessary inspection coverage while reducing device complexity and size.
3Ease of operation
If the ultrasonic probe remains stationary relative to the pipe, then inspection simplicity is maintained, but inspection efficiency and coverage speed decrease
Solution Approach 1:
The ultrasonic inspection device incorporates a dynamic gear mechanism that enables the probe to rotate relative to the pipe circumference. This rotational movement allows the stationary probe to scan different angular positions, significantly improving inspection efficiency and coverage speed while maintaining operational simplicity through automated motion control.
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
Enables efficient, automated, and cost-effective circumferential ultrasonic inspection of pipes, reducing manual labor and facilitating inspection of difficult-to-reach areas, including integration with drones for enhanced accessibility.
Implementation Method 1
A first driving gear assembly is disposed at the first end of the arcuate shaped housing. The first driving gear assembly includes a first driving gear powered by a first motor. A second driving gear assembly is disposed at the second end of the arcuate shaped housing. The second driving gear assembly includes a second driving gear powered by a second motor.
Implementation Method 2
An ultrasonic testing (UT) probe assembly is fixedly attached to the arcuate shaped driven gear and configured for direct contact with the pipe for performing ultrasonic inspection of the pipe or tube.
Data Source
AI summary
An ultrasonic inspection device for a pipe or tube is provided and includes an arcuate shaped housing having an arcuate shaped guide slot. The arcuate shaped housing has a first end and an opposite second end spaced from the first end. A first driving gear assembly is disposed at the first end of the arcuate shaped housing and includes a first driving gear powered by a first motor. A second driving gear assembly is disposed at the second end of the arcuate shaped housing and includes a second driving gear powered by a second motor. An arcuate shaped driven gear, that supports ultrasonic testing (UT) probe assembly, travels within the arcuate shaped guide slot and is engaged at all times with at least one of the first driving gear and the second gear to permit the arcuate shaped driven gear to be driven in a 360 degree path around the pipe.