Wheelset Hollow Shaft Test Lance Drive for Portable Ultrasonic Inspection
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Solution Overview
Problem
Existing ultrasonic testing devices for hollow shafts, particularly those of wheelsets in rail vehicles, are bulky, complex, and difficult to transport and handle, failing to meet the need for compact, easily portable solutions that ensure thorough inspection for material defects.
Innovation Solution
A redesigned ultrasonic testing device comprising a base body, adapter, and test lance, where the test lance is supported directly on the hollow shaft, with a drive unit within the base body, allowing for compact and lightweight design, and featuring a rotary drive mechanism for axial movement of the test lance, enabling easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If stationary testing devices are used for ultrasonic testing of hollow shafts, then testing accuracy is ensured, but the device weight increases to several hundred kilograms and device complexity increases
Solution Approach 1:
The testing device is divided into separate functional components: a base body for support, a test lance for ultrasonic probing, and an adapter for mounting. This segmentation allows each component to be optimized independently, reducing overall device weight while maintaining testing accuracy through specialized design of each segment.
Solution Approach 2:
The heavy stationary support structure is completely removed from the device. Instead, the test lance is supported directly on the hollow shaft being tested, extracting the support function from the device itself and transferring it to the workpiece, thereby dramatically reducing device weight.
2Measurement precision
If stationary testing devices are used for ultrasonic testing of hollow shafts, then testing accuracy is ensured, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The device is segmented into modular components (base body, test lance, adapter) that can be easily assembled and disassembled. This modularity reduces complexity by allowing simple connection interfaces and enabling the device to be configured for different testing scenarios without requiring complex integrated systems.
Solution Approach 2:
The test lance is supported directly on the hollow shaft during testing, allowing the workpiece itself to provide support rather than requiring complex external positioning mechanisms. This self-service approach simplifies the device structure while maintaining testing accuracy.
3Stability of the object's composition
If traditional mounting methods are used for the test lance, then stability is ensured, but ease of manufacture and ease of operation worsen due to complex mounting structures
Solution Approach 1:
An adapter component serves as an intermediary between the base body and the hollow shaft. This adapter simplifies the mounting process by providing a standardized interface that can be easily attached to the shaft while ensuring stable positioning of the test lance, thereby improving ease of manufacture without compromising stability.
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 device provides a compact, lightweight, and easily transportable solution for ultrasonic testing of hollow shafts, ensuring accurate and efficient detection of material defects with minimal complexity, facilitating on-site inspections and maintenance.
Implementation Method 1
devices for the ultrasonic testing of hollow shafts
Implementation Method 2
featuring a rotary drive mechanism for axial movement of the test lance
Data Source
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AI summary
The invention relates, among other things, to a device (10) for ultrasonic testing of hollow shafts (11), in particular hollow shafts of railway wheelsets (12), comprising a test lance (14) having an ultrasonic probe (15) and which can be inserted into the hollow shaft (11), a base body (18) with a tunnel (19) through which the test lance (14) can be guided, and an adapter (20) with a fastening section (22) for fixing to an axial end region (21) of the hollow shaft (11) and with a receiving section (23) by means of which the base body (18) can be fixed relative to the hollow shaft (11), wherein the base body (18) has a drive (24) with which an axial displacement of the test lance (14) can be effected.