Magnetic Lubricating Device for Linear Guideway Wear Compensation
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Solution Overview
Problem
Existing linear guideway lubricating devices fail to maintain effective contact with the rail due to wear and tear, leading to reduced lubrication efficiency, as solutions involving springs, elastic pieces, or rubber become loose and lose effectiveness over time.
Innovation Solution
A lubricating device utilizing magnetic forces to push an oil-containing member against the rail, where magnets attract metallic members to maintain contact, with a simple structure comprising a housing, oil-containing member, and magnets, ensuring consistent lubrication despite wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring is arranged in the oil tank to push the oil-containing sponge against the rail, then the sponge can be pushed against the rail, but the structure becomes complicated and the spring becomes loose due to wear and elastic fatigue
Solution Approach 1:
The patent replaces the mechanical spring system with a magnetic field system. Magnets are embedded in the housing to generate magnetic attraction force that pushes the oil-containing member against the rail. This substitution eliminates the need for mechanical springs, reducing structural complexity while maintaining reliable contact even after wear, as the magnetic force automatically compensates for wear without elastic fatigue.
Solution Approach 2:
The patent changes the physical state and properties of the oil-containing member by incorporating magnetic particles or making it magnetically responsive. This allows the member to be actuated by magnetic fields rather than mechanical springs, enabling contact maintenance through wear compensation via magnetic attraction without the limitations of elastic fatigue.
2Reliability
If a reverse U-shaped elastic piece is arranged in the oil tank to push the oil-containing sponge against the rail, then the sponge can be pushed against the rail, but the elastic piece becomes loose due to wear and elastic fatigue
Solution Approach 1:
The patent replaces the elastic piece mechanism with a magnetic field-based system. Magnets embedded in the housing generate continuous magnetic attraction force that acts on the oil-containing member throughout its service life. This eliminates the degradation issues of elastic pieces, as magnetic fields do not suffer from elastic fatigue or loosening due to wear, thereby extending the duration of effective contact maintenance.
3Reliability
If elastic rubber is arranged in the oil tank to push the oil-containing sponge against the rail, then the sponge can be pushed against the rail, but it becomes loose due to wear and elastic fatigue
Solution Approach 1:
The patent replaces the elastic rubber mechanical system with a magnetic field system. By embedding magnets in the housing, the system uses magnetic attraction to push the oil-containing member against the rail. This substitution simplifies the structure by eliminating the need for elastic rubber components while maintaining reliable contact through wear compensation via magnetic force.
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 magnetic force maintains effective contact between the oil-containing member and the rail, enhancing lubrication efficiency and ease of assembly, as the magnetic attraction increases with wear, preventing clearance and ensuring continuous lubrication.
Implementation Method 1
uses a magnetic force to push the oil-containing member against the rail
Data Source
AI summary
A lubricating device for a linear guideway, used at either side of the slide block of a linear guideway, comprises: a housing, oil-containing member, magnets and metallic magnetic members. Using a magnetic force to push the oil-containing member against the rail, the magnetic force will not fatigue but will increase with the reduction in distance between the magnets and the metallic magnetic members, therefore, the oil-containing member can be kept in a good contact with the rolling passage of the rail, and the lubricating oil can be continuously transmitted from the oil-containing member to the surface of the rail, thus lubricating the linear guideway automatically without disassembling it.