Robotic Crawler Cladding Curved Pipe Interiors
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Solution Overview
Problem
Cladding the interior surfaces of curved pipe sections is difficult and expensive, as existing methods and devices are inefficient and costly, particularly when trying to apply wear-resistant coatings in a longitudinal manner.
Innovation Solution
A method and apparatus that includes a pipe support for conjoint rotation, a flexible track assembly with track mounts to secure the track along the pipe's interior surface, a robotic crawler for movement along the track, and a material applicator system that can be rotated and controlled to apply coatings efficiently, allowing for various material types and process applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to clad the interior surfaces of curved pipe sections, then wear-resistant coatings can be applied, but the process becomes difficult and expensive
Solution Approach 1:
The patent employs a robotic crawler that moves dynamically along the interior surface of the curved pipe section, adapting to the pipe's geometry. The crawler's movable positioning system allows it to navigate the curved surface efficiently, making the cladding process more manageable and less expensive while maintaining coating quality
Solution Approach 2:
The patent introduces a flexible track system as an intermediary between the robotic crawler and the pipe interior surface. This track system conforms to the curved geometry of the pipe, providing a stable pathway for the crawler and enabling precise material application without requiring complex direct positioning mechanisms
2Reliability
If conventional cladding methods are used on curved pipes, then coatings can be applied, but the cost increases significantly
Solution Approach 1:
The robotic crawler is equipped with self-contained propulsion and positioning systems that allow it to move autonomously along the flexible track within the pipe. This self-service capability eliminates the need for external positioning equipment or manual intervention, reducing operational costs while maintaining reliable coating application
Solution Approach 2:
The patent utilizes the flexibility of the track system to adapt to different pipe curvatures and dimensions. By changing the track's configuration parameters to match the specific pipe geometry, the system can efficiently apply coatings to various curved pipe sections without requiring multiple specialized devices, thereby reducing overall operational costs
3Manufacturing precision
If longitudinal cladding is applied to curved pipe interiors, then wear-resistant surfaces are achieved, but existing systems are inefficient
Solution Approach 1:
The patent replaces manual or conventional mechanical cladding systems with a robotic crawler equipped with automated material application equipment. This robotic system provides precise longitudinal cladding application while operating continuously along the flexible track, significantly improving both precision and productivity compared to conventional methods
Solution Approach 2:
The robotic crawler moves continuously along the flexible track within the pipe interior, applying cladding material in a continuous longitudinal process. This continuous operation eliminates interruptions and maximizes productivity while maintaining consistent coating quality throughout the pipe section
4Extent of automation
If a robotic system is used for pipe cladding, then automation is improved, but device complexity increases
Solution Approach 1:
The robotic crawler is designed as a universal system that can apply different cladding materials to various pipe geometries by simply changing the flexible track configuration. This multi-functionality reduces the need for multiple specialized devices, thereby managing device complexity while maintaining high automation levels
Solution Approach 2:
The patent employs a flexible track that can conform to different pipe curvatures and sizes. This flexible component simplifies the overall device structure by eliminating the need for rigid, complex positioning mechanisms, allowing the robotic system to adapt to various pipe configurations without increasing device complexity
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 and cost-effective longitudinal cladding of curved pipe sections by controlling heat input and accommodating different pipe dimensions, allowing for precise application of wear-resistant coatings, reducing damage and operational costs.
Implementation Method 1
The interior surfaces of pipe sections are typically clad by depositing the cladding material thereon using well known methods in the field of automatic or semi-automatic electric arc welding
Data Source
AI summary
An apparatus for cladding the interior surfaces of a curved pipe section includes a flexible track that is positioned longitudinally within the curved pipe and supported at opposite ends to corresponding opposite ends of the curved pipe. The flexible track is caused to bend and conform to the radius of curvature of an interior surface of the curved pipe. A robotic crawler is supported on the track section and carries a material applicator head. The robotic crawler is driven back-and-forth across the track section while the material applicator head applies an overlay material to the interior surface of the curved pipe. In a method, the position of the curved pipe in space, the travel direction and speed of the crawler and the position of the application head are all coordinated to maintain the application of the overlay material in the “flat plane” position.