Motion Guide Cover Member Lubrication Layout Around Bolt Holes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional motion guide devices face design constraints and increased costs due to the need for altering the shape of cover members with lubricant supply passages, especially when forming tunnel-like passages from side surfaces to the central portion, which is limited by bolt attachment holes and varied specifications.
Innovation Solution
A motion guide device with a cover member featuring a first lubricant supply passage extending orthogonally from the side surfaces and a second lubricant supply passage with a diameter-expanded hollow section, allowing for flexible formation of tunnel-like passages that avoid bolt holes, enabling diverse specifications and efficient lubricant distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tunnel-like lubricant supply passages are formed from side surfaces to central portion of cover member, then lubricant distribution is improved, but design flexibility is reduced due to bolt attachment holes
Solution Approach 1:
The lubricant supply passage is divided into two separate passages: a first lubricant supply passage extending from the side surface to the central portion, and a second lubricant supply passage extending from the central portion to the rolling member circulation passage. This segmentation allows each passage to be optimized independently, enabling the first passage to avoid bolt attachment holes while maintaining proper lubricant distribution to the rolling members.
2Adaptability or versatility
If cover member shape is altered to accommodate different specifications, then adaptability is improved, but manufacturing cost increases
Solution Approach 1:
The cover member is designed with a standardized structure featuring a first lubricant supply passage extending from the side surface to the central portion and a second lubricant supply passage extending from the central portion to the rolling member circulation passage. This universal design allows the same cover member structure to be used across different specifications and applications, eliminating the need to alter the cover member shape for different requirements and thereby reducing manufacturing costs.
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 configuration allows for a common design of cover members that can accommodate various specifications, ensuring effective lubricant supply while avoiding design alterations and cost increases, and maintains lubricant passage functionality even with plug insertion.
Implementation Method 1
a first lubricant supply passage formed to extend in a direction orthogonal to a longitudinal direction of the track member from at least one of a left side surface and a right side surface of the cover member, and a second lubricant supply passage connected to the first lubricant supply passage
Implementation Method 2
the rolling members arranged between the rolling member rolling surface of the track rail and the loaded rolling member rolling surface of the movable block make rolling motion, and circulate through the rolling member circulation passage
Implementation Method 3
it is necessary to make good lubrication, that is, making a film of oil or grease between a rolling member and a rolling surface, to prevent direct contact between metals
Data Source
AI summary
The motion guide device includes a lubricant supply passage provided in at least one of a pair of cover members provided to a movable member and configured to supply lubricant to an endless circulation passage, in which the lubricant supply passage includes at least a first lubricant supply passage α formed to extend in a direction orthogonal to a longitudinal direction of the track member from at least one of a left side surface and a right side surface of the cover member, and a second lubricant supply passage β connected to the first lubricant supply passage α, and a passage shape in a place connected to the first lubricant supply passage α of the second lubricant supply passage β is configured as a diameter-expanded hollow section having a diameter more expanded than a passage shape of another place. Thus, a new form of a cover member is provided.