Linear Guide Self-Adjusting Play Reduction
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Solution Overview
Problem
Existing linear guides with self-adjusting play reduction mechanisms are complex in structure and difficult to mount, often resulting in increased sliding friction and cumbersome arrangements of disc springs, waved leaf springs, or wedge elements.
Innovation Solution
A simplified linear guide design where the adjusting element's further slide surface is integrated into the slider's slide surface, allowing for self-adjusting play reduction by sliding displacement perpendicular to the displacement direction, eliminating the need for additional slide elements and simplifying the structure, with a compact and prismatic surface configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional adjusting elements (disc springs, waved leaf springs, wedge elements) are used for play reduction, then play can be reduced, but the structure becomes complex and mounting becomes difficult
Solution Approach 1:
The adjusting element is merged with the slide surface of the slider. The further slide surface of the adjusting element forms an integral part of the associated slide surface, eliminating the need for separate adjusting mechanisms and reducing structural complexity while maintaining play reduction functionality
Solution Approach 2:
The adjusting element serves multiple functions: it acts as both a play reduction mechanism and a slide surface for the slider. This multi-functionality reduces the number of separate components needed and simplifies the overall structure
2Reliability
If additional slide elements are added for play reduction, then play can be reduced, but the guide size increases
Solution Approach 1:
The adjusting element is integrated into the existing slide surface structure rather than adding separate slide elements. This merging approach reduces the overall volume of the moving object while achieving play reduction
3Reliability
If wedge elements with inclined planes are used, then play can be reduced, but sliding friction increases
Solution Approach 1:
The inclined plane mechanism is extracted from the adjusting element design. Instead of using wedge elements with inclined planes that generate high friction, the adjusting element uses a flat further slide surface that slides with reduced friction against the guide surface of the rail
Solution Approach 2:
The design uses simple, low-friction sliding surfaces rather than complex wedge mechanisms. This approach prioritizes low friction and simplicity over the mechanical advantage provided by inclined planes
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
This design reduces play in the slider's movement while allowing for adjustable play settings, achieving smooth, stepless operation with reduced frictional forces, enhancing ease of assembly and minimizing the guide's size, suitable for various applications including furniture and mechanical systems.
Implementation Method 1
the adjusting element is spring-loaded in the direction perpendicular to the displacement direction
Implementation Method 2
with reduced frictional forces
Data Source
AI summary
A linear guide which is of a simple structure and which can be easily fitted, having self-adjusting play reduction. It includes a slider with slide surfaces and a rail with guide surfaces, wherein the slider is guided with its slide surfaces adapted to the guide slide surfaces in a slidingly displaceable reciprocating relationship in a displacement direction at the guide surfaces of the rail. The self-adjusting play reduction of the linear guide has at least one adjusting element which according to the invention has a slide surface forming a portion of one of the slide surfaces of the slider.