Spring-Mounted Magnetic Crawler Track for Inspection Vehicle Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inspection vehicles for power generating plants face challenges with secure adhesion on uneven surfaces due to the limitations of permanent magnets and dual crawler tracks, which can lead to device instability and inability to access surfaces with resin drips or varying diameters.
Innovation Solution
The drive unit incorporates spring-mounted running wheels with integrated magnetic rings and a central non-magnetic inner ring, allowing for adaptable adhesion via magnetic repulsion or attraction, and a flexible crawler track with a raised wheel guide, ensuring stable attachment on uneven surfaces, and is connected via swivel joints or tube bends for varying diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If permanent magnets are used to press the device onto the surface, then adhesion force is improved, but on uneven surfaces the magnets can partially lose their attracting action and the device can fall off
Solution Approach 1:
The running wheels are spring-mounted to the support structure, allowing them to move dynamically to accommodate uneven surfaces. This dynamic adjustment ensures that the magnetic rings maintain consistent contact and adhesion force regardless of surface irregularities, preventing the device from falling off.
Solution Approach 2:
The magnetic rings are integrated directly into the running wheels, combining the adhesion function with the wheel structure. This integration ensures that the magnetic force is applied at the contact point with the surface, maintaining reliable adhesion even on uneven terrain.
2Force
If two parallel crawler tracks are used with permanent magnets between them, then adhesion is improved, but the drive units cause problems and cannot handle surfaces with resin drips
Solution Approach 1:
The spring-mounted running wheels can independently adjust to surface variations, including resin drips and uneven spots. Each wheel responds dynamically to the local surface conditions, allowing the device to maintain adhesion and continue moving without interruption.
Solution Approach 2:
The magnetic rings are positioned at the contact point of each running wheel with the surface, concentrating the adhesion force exactly where needed. This localized magnetic attraction ensures reliable attachment even on surfaces with irregularities like resin drips.
3Device complexity
If the device is designed for fixed diameter surfaces, then structural simplicity is improved, but adaptability to varying diameters and curvatures is reduced
Solution Approach 1:
The swivel joints connect the drive units to the sensor platform, allowing the entire inspection vehicle to pivot and adapt to different curvatures and diameters. This dynamic configuration enables the device to operate on various surface geometries without requiring multiple specialized designs.
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 provides secure and adaptable adhesion on uneven surfaces, enabling efficient inspection and measurement on various geometric features, including cylindrical surfaces, with improved stability and ease of use across different curvatures and diameters.
Implementation Method 1
The magnetic rings can mutually repel, wherein the inner ring is formed of a non-magnetic material. The magnetic rings, however, can also mutually attract
Implementation Method 2
a multiplicity of running wheels which are spring-mounted upon the support structure
Data Source
AI summary
A drive unit (10) for an inspection vehicle which can be used on ferromagnetic bases (19), especially in generators, which drive unit includes a motor-powered crawler track (18) and also magnetic devices for holding the drive unit (10) on the base (19). An improved insensitivity to uneven spots in the base is achieved by the crawler track (18), in the region where it bears upon the base (19), being guided via inner, spring-mounted running wheels (12), and by the magnetic devices being integrated in the running wheels (12).