Sliding Cable Mesh Retains Lubricant
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sliding cables experience increased sliding resistance due to lubricant migration and inadequate retention within the cable main body, leading to inefficient lubrication.
Innovation Solution
A sliding cable design featuring a mesh structural body on its outer surface, comprising strands with a low friction coefficient, such as polytetrafluoroethylene, which forms closed cells to retain lubricant and reduce contact surface area with the casing, thereby minimizing friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If an outer layer with a protrusion extending in the sliding direction is provided, then sliding resistance is reduced, but lubricant migration occurs and lubricant retention becomes inadequate
Solution Approach 1:
The outer layer is segmented into multiple protrusions distributed along the sliding direction, creating discrete lubricant retention zones. Each protrusion acts as an independent lubricant reservoir, preventing bulk lubricant migration while maintaining reduced contact area for sliding resistance.
Solution Approach 2:
The outer layer features localized protrusions with specific geometric properties (height, width, spacing) optimized for lubricant retention. These protrusions create local pockets that trap lubricant, while the overall surface topology maintains low sliding resistance through reduced contact area with the casing.
2Force
If the contact surface area with the casing is reduced, then sliding friction decreases, but lubricant retention becomes inadequate
Solution Approach 1:
The solution transitions from a two-dimensional contact surface problem to a three-dimensional structure by adding protrusions with height dimension. These protrusions create volumetric lubricant retention spaces while maintaining minimal contact area between the cable and casing, effectively decoupling lubricant quantity from contact surface area.
Solution Approach 2:
The outer layer structure functions as a porous or cellular material with protrusions creating void spaces for lubricant storage. This porous architecture allows the cable to retain lubricant within the protrusion cavities while presenting a reduced effective contact surface area to the casing, thereby maintaining low sliding friction.
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 mesh structural body effectively holds lubricant within the cells, reducing sliding friction and enhancing sliding efficiency by dispersing contact points along the cable's surface.
Implementation Method 1
the cells of the mesh structural body form closed spaces on the surface of the cable main body. Thus, when a lubricant is applied to the sliding cable, the lubricant can be held adequately in the cells of the mesh structural body
Implementation Method 2
since the cells of the mesh structural body form protrusions that protrude from the surface of the cable main body, the contact surface area with respect to a casing or other member that the cable main body and the mesh structural body slide against is reduced efficiently and the sliding friction is decreased
Data Source
AI summary
A sliding cable is provided that basically includes a cable main body and a mesh structural body. The cable main body is made of a plurality of steel wires bundled together. The mesh structural body is arranged on an outer surface of the cable main body.