Wind Turbine Blade Rope Access for Crane-Free Maintenance
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Solution Overview
Problem
Existing methods for maintaining large wind power generators are costly, labor-intensive, and pose safety risks due to the need for cranes and workers to operate at high heights, especially when accessing blades for lightning resistance and wear issues.
Innovation Solution
A system comprising a rope holding device that moves to the wind turbine blade and holds ropes, allowing a maintenance device to move along these ropes for safe and easy access, enabling maintenance while minimizing the weight and complexity of the rope holding device to facilitate its own positioning and the maintenance device's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a large crane is used to remove and put down the blade for maintenance, then the maintenance can be performed on the ground, but the cost and construction period increase enormously
Solution Approach 1:
A rope holding device serves as an intermediary mechanism between the blade and maintenance workers. The device travels along the blade using ropes, providing a stable platform for maintenance without requiring crane-based blade removal. This mediator enables ground-based maintenance preparation while avoiding the time-consuming crane operations.
Solution Approach 2:
The invention extracts the essential function of blade access from the complex crane system. By using a lightweight rope holding device that travels along the blade, the patent removes the need for heavy crane equipment while maintaining the ability to perform maintenance tasks on the blade.
2Ease of operation
If a large crane is used to remove and put down the blade for maintenance, then the maintenance can be performed on the ground, but the cost and labor increase much
Solution Approach 1:
The invention extracts the essential function of blade access from the complex crane system. By using a lightweight rope holding device that travels along the blade, the patent removes the need for heavy crane equipment while maintaining the ability to perform maintenance tasks on the blade.
Solution Approach 2:
The rope holding device is designed as a simple, lightweight, and relatively inexpensive system compared to large cranes. It uses standard ropes and a compact holding mechanism that can be deployed and retrieved without significant investment in heavy infrastructure.
3Device complexity
If a worker moves on the blade along a rope for maintenance, then the equipment requirement is reduced, but the safety risk increases due to working at high place
Solution Approach 1:
The rope holding device serves as a stable intermediary platform between the blade and workers. Instead of workers directly navigating the blade, they operate from this controlled platform that is securely held by the rope system, significantly improving safety while keeping equipment requirements low.
4Ease of operation
If the rope holding device weight is reduced for easier positioning, then the positioning and movement become easier, but the structural strength may be compromised
Solution Approach 1:
The patent balances the rope holding device weight by using counterweight principles. The device is designed to be lightweight for easy positioning while incorporating structural elements and rope tension management that provide sufficient strength and stability to support maintenance operations safely.
Data Source
AI summary
This system, for performing maintenance of at least one part of an object, is provided with: at least one rope holding device which is configured to move up to said at least one part of said object and to hold at least one rope at said at least one part of said object; and a maintenance device which, configured to perform the maintenance of said at least one part of said object, is configured to move on the aforementioned at least one rope, held by the at least one rope holding device, to said at least one part of said object and to move on said at least one part of said object.