Linear Guide Lubricant Retainer for Continuous Rail Lubrication
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Solution Overview
Problem
Conventional linear guides stop lubricant supply when the lubricant in the lubricant-containing member is consumed, necessitating maintenance for replacement.
Innovation Solution
A linear guide with a lubricant retainer that includes a lubricant storage space filled with lubricant, allowing continuous supply to the guide rail over a long period by replenishing the lubricant as it is consumed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lubricant-containing member is used to supply lubricant to the guide rail, then lubrication is provided, but the lubricant supply stops when the lubricant is consumed, requiring maintenance replacement
Solution Approach 1:
The lubricant storage space is pre-filled with lubricant before the lubricant retainer is installed. This preliminary action ensures that when the lubricant in the retainer is consumed, the replenishment mechanism is already in place and can immediately transfer lubricant from the storage space to the retainer, maintaining continuous lubrication without interruption or maintenance intervention.
2Reliability
If the lubricant retainer is continuously impregnated with lubricant, then continuous supply to the guide rail is achieved, but lubricant leakage may occur
Solution Approach 1:
The lubricant retainer and lubricant storage space are designed as dynamic components that move together with the slider. This dynamic configuration ensures that the lubricant supply system adapts to the motion of the linear guide, maintaining proper lubricant impregnation and transfer mechanisms during operation while preventing leakage through controlled movement and positioning.
Solution Approach 2:
The lubricant retainer acts as an intermediary component between the lubricant storage space and the guide rail. It receives lubricant from the storage space, becomes impregnated with it, and then transfers it to the guide rail. This intermediary function allows controlled lubricant distribution while preventing direct contact between the storage space and the external environment, thereby preventing leakage.
3Duration of action of stationary object
If a lubricant storage space is integrated into the linear guide, then long-term lubricant supply is enabled, but the device structure becomes more complex
Solution Approach 1:
The lubricant storage space is merged with the lubricant retainer to form an integrated lubrication system. The storage space is positioned within or adjacent to the retainer structure, allowing direct lubricant transfer without requiring separate external reservoirs or complex delivery mechanisms. This merging reduces overall system complexity while enabling long-term lubricant supply.
Solution Approach 2:
The lubricant storage space is nested within the lubricant retainer structure or positioned in a nested configuration. This nesting arrangement allows the storage space to be compactly integrated into the existing retainer geometry, minimizing additional space requirements and reducing structural complexity while providing extended lubricant capacity for prolonged operation.
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
Ensures continuous lubricant supply to the guide rail, reducing maintenance needs and maintaining a sufficient lubricant state over time, preventing lubricant leakage and foreign matter accumulation.
Implementation Method 1
the lubricant retainer is sufficiently impregnated with the lubricant
Implementation Method 2
when all of the lubricant impregnated in the lubricant-containing member is consumed
Data Source
Figure 1
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Figure 3
AI summary
A return cover (26) provided with a ball circulation path is attached to a slider (18), a lubricant retainer (42) made up from a porous elastic body and in sliding contact with a guide rail (14) of a body (12) is supported by the return cover, and the lubricant retainer is provided therein with a lubricant storage space (44) filled with lubricant.