Nested Drain Pipe Assembly for Wind Transmission Oil Sumps
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Solution Overview
Problem
Existing flexible drain pipes in wind power transmissions are prone to defects, leaks, and high costs due to low mechanical load-bearing capacity and are difficult to install, especially when compensating for manufacturing tolerances and load-related deformations.
Innovation Solution
A mechanically robust and cost-effective drain pipe design featuring interconnected pipe pieces that are easily assembled, allowing for axial displacement and fluid-tight sealing, enabling compensation for transmission housing deviations and deformations while preventing twisting and tilting issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible pipe section is used to compensate for manufacturing tolerances and load-related deformations, then adaptability is improved, but reliability deteriorates due to susceptibility to defects and leakages
Solution Approach 1:
The pipeline is divided into multiple straight pipe pieces (first pipe piece, second pipe piece, etc.) that are connected together. Each piece maintains high mechanical strength while the segmented structure allows for assembly flexibility to accommodate manufacturing tolerances and deformations without requiring a continuously flexible pipe section.
Solution Approach 2:
The pipe pieces are inserted into one another in a nested arrangement, where the second pipe piece is inserted into the first pipe piece. This nesting provides both flexibility for alignment adjustment and a robust mechanical connection that maintains reliability under load.
2Adaptability or versatility
If a flexible pipe section is used to accommodate deformations, then adaptability is improved, but device complexity increases due to special production requirements
Solution Approach 1:
Instead of producing complex flexible pipe sections, the system uses simple straight pipe pieces that can be manufactured using standard processes. The flexibility is achieved through the assembly of multiple simple components rather than through complex material or structural design.
Solution Approach 2:
The pipe connection allows for dynamic adjustment during assembly to accommodate deformations and tolerances, while the pipe pieces themselves remain simple static components that are easy to manufacture.
3Ease of operation
If pipe pieces are inserted into one another to provide flexibility, then ease of operation is improved, but manufacturing precision requirements increase to ensure fluid-tight sealing
Solution Approach 1:
The nested insertion arrangement allows for easy assembly while the overlapping structure provides a large contact area for sealing, reducing the impact of manufacturing tolerances. The nesting geometry naturally guides alignment during installation.
Solution Approach 2:
The sealing function is integrated into the insertion connection itself rather than requiring separate sealing components. The fluid-tight seal is achieved through the combined geometry of the inserted pipe pieces, simplifying both manufacturing and assembly.
Data Source
AI summary
An arrangement including a transmission housing forming a lubricant sump and a pipeline including a first piece and a second piece. The first piece and the second piece of the pipeline respectively open into the lubricant sump. The first piece and the second piece of the pipeline are inserted into one another.