Wind Turbine Access Device with Counterweight Balance
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Solution Overview
Problem
Current hoisting arrangements for accessing and maintaining wind turbines, particularly rotor blades and towers, are time-consuming, require heavy machinery, and lack user-friendliness and safety features, necessitating the development of a more efficient and safer access device.
Innovation Solution
A device comprising a suspended first main part and a movable second main part that can rotate and adjust vertically and horizontally, equipped with a counterweight for balance, allowing access to all parts of a wind turbine using a lightweight construction with enhanced safety and independence from external power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy machinery such as cranes is used to fix suspension means and lift platforms, then the device can support heavy loads and provide stable access, but the device becomes complex, requires extensive external equipment, and increases costs
Solution Approach 1:
The patent employs a counterweight mechanism where a first counterweight is attached to the first main part and a second counterweight is attached to the second main part. These counterweights balance the gravitational forces on the device, allowing it to remain suspended at desired heights without requiring heavy external lifting machinery while maintaining stability during operation.
2Reliability
If a large and heavy platform is used to carry personnel and equipment, then the platform can support heavy loads and provide stable working conditions, but it requires heavy machinery for lifting and lowering, increasing costs and time consumption
Solution Approach 1:
The patent uses counterweights attached to both the first and second main parts to balance the weight of the platform and its occupants. This allows the platform to be lightweight yet maintain stable working conditions by compensating for weight changes dynamically as personnel move or equipment is added or removed.
Solution Approach 2:
The device is divided into multiple independent parts: a first main part for suspension, a second main part for carrying personnel, and counterweights for each. This segmentation allows each component to be optimized independently - the platform remains lightweight while the counterweight system provides the necessary support without requiring heavy construction.
3Weight of moving object
If the device structure is made lightweight to reduce equipment requirements, then the device becomes easier to deploy and requires less external machinery, but it may compromise safety standards and stability
Solution Approach 1:
The counterweight system provides active balance compensation that maintains safety margins even with lightweight construction. The counterweights are positioned and sized to ensure that the device remains in equilibrium under various loading conditions, preventing uncontrolled movements that could compromise safety despite the reduced structural weight.
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 device enables efficient and safe access to wind turbine components by allowing flexible positioning and operation without the need for heavy machinery, improving user-friendliness and safety standards while maintaining balance and stability.
Implementation Method 1
The device comprises a counterweight for balance
Data Source
AI summary
The present invention relates to a device for enabling access to a structure above ground level by lowering and/or lifting the device in relation to the structure, the device comprising a first endless frame structure defining an opening, wherein at least part of the first endless frame structure forms a track portion, the track portion being adapted to guide an, in relation to the track portion, movable object, such as a gondola, along the track portion. The device may further comprise a second endless frame structure defining an opening, the second endless frame structure being aligned with the first endless frame structure.