Flat Sensor Face for Wire Rope Inspection Reducing Wear
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Solution Overview
Problem
Existing wire rope inspection apparatuses face issues with wear due to large contact areas, lack of versatility, and bulkiness, making them inefficient and difficult to use for inspecting ropes of varying diameters and numbers simultaneously.
Innovation Solution
A portable wire rope inspection apparatus with a flat sensor face and a handle, allowing for minimal contact area and versatility in diameter and number of ropes inspected, using a single sensor device that can be used for both magnetizing and sensing magnetic leakage flux, and featuring a tilting mechanism and guide members for improved accuracy and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor unit surrounds the major portion of the outer peripheral surface of the wire rope, then the sensing accuracy is improved, but the wear sustained by the wire rope and sensor unit increases rapidly
Solution Approach 1:
The sensor unit is segmented into multiple independent magnetic sensors arranged along the wire rope, with each sensor covering only a portion of the circumference rather than surrounding the entire perimeter. This segmentation reduces the contact area between the sensor unit and wire rope, thereby reducing wear while maintaining adequate sensing coverage through the distributed arrangement of multiple sensors
Solution Approach 2:
The sensor unit transitions from a three-dimensional surrounding structure to a two-dimensional planar arrangement of magnetic sensors positioned on one side of the wire rope. This dimensional reduction minimizes the contact interface between the sensor unit and wire rope surface, reducing wear while the distributed sensor array maintains sensing accuracy across the wire rope cross-section
2Reliability
If the sensor unit is installed permanently in fixed fashion, then the inspection reliability is improved, but the wear proceeds at a rapid pace
Solution Approach 1:
The sensor unit is designed with a flexible mounting mechanism that allows it to dynamically adapt to the wire rope's movement and positioning variations during operation. The flexible connection enables the sensor unit to maintain reliable contact for consistent inspection while reducing friction and wear through controlled movement rather than rigid fixed installation
3Measurement precision
If the sensor unit has a size conforming to the diameter of the wire rope, then the sensing accuracy is improved, but the apparatus lacks versatility
Solution Approach 1:
The sensor unit is designed with a standardized modular structure that can be universally applied to wire ropes of various diameters. The magnetic sensors are arranged in a configurable pattern that maintains optimal sensing geometry across different wire rope sizes, eliminating the need for custom-designed sensor units for each diameter and thereby achieving versatility without sacrificing sensing accuracy
4Productivity
If an abnormality detector is provided for each one of multiple wire ropes, then the inspection coverage is improved, but the overall apparatus is heavy and large in size
Solution Approach 1:
Multiple abnormality detectors are merged into a single integrated sensor unit that can simultaneously inspect multiple wire ropes. The magnetic sensors are arranged to cover several adjacent wire ropes within one unified structure, reducing the total number of separate detector units needed and thereby significantly reducing the overall apparatus weight and size while maintaining comprehensive inspection coverage
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 reduces wear and allows for efficient, lightweight, and portable inspection of wire ropes of different diameters and numbers, improving detection accuracy and ease of use, while minimizing the need for multiple sensor devices.
Implementation Method 1
a sensor device for sensing magnetic leakage flux that leaks from a magnetized wire rope
Data Source
AI summary
Provided is a wire rope inspection apparatus that is light, small in size and portable. A portable rope tester has a sensor device for sensing magnetic leakage flux leaking from a magnetized wire rope. Provided on the front of sensor device is a sensor face formed to be flat. The sensor face is pressed against the wire rope. By pressing the flat sensor face against the wire rope, magnetic leakage flux is sensed by the sensor device and whether the wire rope is damaged or not is detected. A handle is secured to the back of the sensor device on the side opposite the sensor face. The sensor device is held by grasping the handle by hand, and the sensor face of the device is pressed against the wire rope.