Switch Mechanism Test Rig with Adjustable Test Slider
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Solution Overview
Problem
Existing switch mechanism test rigs fail to synchronously test the actuating slider and test slider, leading to incomplete testing, as the test sliders are not fitted during the testing process and require separate testing for their function and high-voltage resistance.
Innovation Solution
A modular arrangement with a horizontal and vertical component, allowing independent movement of the actuating and test sliders, enabling flexible adaptation and synchronization of the test slider's coupling position on the test rig, which includes a magnetic fastening foot and programmable controller for automated positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the test slider is fitted during testing, then complete testing of the switch mechanism is achieved, but the actuating slider and test slider cannot move synchronously due to different displacement lengths
Solution Approach 1:
The patent makes the position of the test slider adjustable and movable along the guide rail, allowing it to be dynamically repositioned to different coupling positions. This dynamic adjustment enables the test slider to accommodate different displacement lengths and move independently from the actuating slider, resolving the synchronization issue while maintaining complete testing capability.
Solution Approach 2:
The patent separates the movement control of the actuating slider and test slider by providing independent coupling positions and adjustment mechanisms. The test slider can be positioned at different locations along the guide rail independently of the actuating slider's position, allowing each slider to move according to its own displacement requirements without interfering with the other.
2Ease of operation
If the test slider is removed before testing, then synchronous movement is possible, but separate testing of the test slider is required afterwards
Solution Approach 1:
The patent enables the test slider to be pre-positioned at the correct coupling position before the main testing begins. By providing adjustable positioning mechanisms and multiple coupling positions, the test slider can be properly configured in advance, eliminating the need for removal and subsequent separate testing, thus saving time and ensuring complete testing in one process.
3Device complexity
If a fixed coupling position is used for the test slider, then the testing setup is simple, but the arrangement cannot accommodate different mechanical dimensions of various switch mechanisms
Solution Approach 1:
The patent creates a universal testing arrangement by providing multiple adjustable coupling positions along the guide rail and interchangeable fastening feet. This universal design allows the same testing apparatus to accommodate switch mechanisms of different mechanical dimensions by simply adjusting the test slider position or changing the fastening foot, without requiring separate dedicated fixtures for each mechanism type.
Solution Approach 2:
The patent transforms the fixed coupling position into a dynamic, adjustable position system. The test slider can be moved to different locations along the guide rail and secured at various coupling positions, allowing the testing arrangement to adapt to different switch mechanism dimensions while maintaining operational simplicity through standardized adjustment procedures.
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 complete testing of switch mechanisms in their final state without pre-removal or post-test replacement of test sliders, ensuring accurate force measurement and high-voltage resistance testing without separate testing of the test sliders.
Implementation Method 1
a magnetic fastening foot and programmable controller for automated positioning
Data Source
AI summary
A switch mechanism serves for changing over the path traveled by a rail vehicle on a track. The switch mechanism has an electric motor, the rotational movement of which is converted into a linear movement by way of a spindle rod or toothed rack. Part of the mechanical system is usually also a coupling, which prevents excessive force from being exerted on the track. A flexible adaptation for the test slider of a switch drive enables complete testing of the switch drive on a test bench. The switch drive can be tested in the final state because the test slider does not need to first be removed and then reinstalled only after testing. Separate testing of the test slider in terms of its function and its high voltage strength is therefore no longer necessary. After the testing, no additional steps need to be carried out on the switch drive.