Embedded-Sensor Linear Guideway for Rolling Wear Detection
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Solution Overview
Problem
Linear guideways face challenges in detecting wear of rolling members, leading to reduced smoothness and accuracy of slider movement over time, as existing methods lack effective monitoring and maintenance triggers.
Innovation Solution
Incorporating a sensing module with elastic members and temperature sensors within the linear guideway to detect deformation and temperature, allowing for real-time monitoring of wear rates and triggering maintenance when wear exceeds predetermined limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rolling members are used in the linear guideway to enable smooth movement, then the slider can move smoothly on the track, but the rolling members wear out over time reducing accuracy
Solution Approach 1:
The patent embeds a sensing module in advance within the slider to continuously monitor the wear state of rolling members before significant wear occurs. This preliminary detection enables proactive maintenance scheduling, allowing replacement of rolling members at optimal intervals to maintain both smooth operation and accuracy without waiting for performance degradation to become apparent.
2Device complexity
If no monitoring system is installed, then the device complexity remains low, but wear detection capability is lost
Solution Approach 1:
The sensing module is nested within the existing slider structure, utilizing the hollow interior space of the slider to house sensors, signal processing circuits, and power management components. This nesting approach integrates monitoring functionality without adding external components, maintaining the compact and simple external geometry of the linear guideway while enabling comprehensive wear detection through strain gauges and other sensors positioned to detect rolling member degradation.
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 timely replacement of worn rolling members, ensuring continuous smooth and accurate movement of the slider, improving the longevity and performance of the linear guideway.
Implementation Method 1
The elastic member becomes deformed when a force is applied to the elastic member
Implementation Method 2
the sensing module further comprises a temperature sensor to detect the temperature
Data Source
AI summary
A linear guideway with an embedded sensor includes a track, a slider, a plurality of rolling members, and a sensing module. The track extends in a first direction and has a first recess. The slider can move in the first direction and include a second recess, a channel, at least one hole, and a deforming region. The channel is formed by coupling the first recess and the second recess, and extends in the first direction. The hole extends from the surface of the slider along the insertion axis and into the slider. The rolling members are disposed in the channel. The sensing module is disposed in the hole, and contacts the deforming region to detect the amount of deformation.