Windmill Hub Sealing Apparatus Segmentation
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Solution Overview
Problem
Conventional sealing apparatuses for windmills are inflexible, difficult to detach or replace, and cannot be easily adapted to various types of windmills, leading to inadequate sealing and potential damage from water or foreign objects.
Innovation Solution
A hub sealing apparatus comprising multiple sealing rings with a flexible architecture, allowing easy detachment and replacement, and composed of bottom, middle, and top sealing rings that can interconnect to form full rings, providing multiple seals and adapting to different windmill types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sealing apparatus is used, then the hub can be sealed to prevent water and lubricating oil leakage, but the sealing apparatus cannot be easily detached or replaced and cannot be adapted to different windmill types
Solution Approach 1:
The sealing apparatus is divided into multiple independent sealing rings (first sealing ring, second sealing ring, third sealing ring) that can be separately installed, detached, and replaced. Each sealing ring is positioned at different locations (between blades and bearing, between bearing and hub, and additional sealing position) to provide modular sealing coverage, enabling easy maintenance while maintaining reliable sealing effectiveness.
2Reliability
If a conventional sealing apparatus is used, then the hub can be sealed, but the apparatus cannot be easily adapted to various types of windmills
Solution Approach 1:
The sealing apparatus uses standardized sealing rings with consistent structural design that can be universally applied to different windmill types. The modular multi-ring configuration allows the same basic design to be adapted to various hub sizes and configurations, making the sealing solution versatile across different windmill models while maintaining effective sealing performance.
3Reliability
If multiple sealing rings are used to improve sealing effectiveness, then the sealing becomes more reliable, but the device complexity increases
Solution Approach 1:
The sealing function is segmented into multiple independent sealing rings positioned at different critical interfaces. This segmentation provides redundant sealing paths, so if one sealing ring fails, others continue to provide sealing protection, thereby improving overall reliability without requiring a single complex sealing mechanism.
Data Source
AI summary
A windmill having a hub sealing apparatus for sealing an interface between a hub and a blade of the windmill, The hub sealing apparatus includes a bottom sealing ring configured to be sealed to the hub, a top sealing ring configured to be rotatably sealed to the blade, and a middle sealing ring configured to be sealed to the top sealing ring and the bottom sealing ring, so as to connect the top and bottom sealing rings.