Wind Turbine Blade Lifting Device With Inflatable Pneumatic Chamber
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Solution Overview
Problem
Existing wind turbine blade lifting devices often damage the blades during maintenance due to direct contact and lack of flexibility in movement, and they restrict the range of motion required for operations like disassembly and reassembly.
Innovation Solution
A wind turbine blades lifting device featuring a hollow structure made of strong, rigid material with an inflatable pneumatic chamber that surrounds the blade, providing support and immobilization without direct contact, allowing for flexible movement and reduced risk of damage during lifting, rotation, and positional changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid structure is used to support the blade during lifting, then structural strength and rigidity are improved, but the blade may be damaged due to direct contact
Solution Approach 1:
A pneumatic chamber is introduced as an intermediary element between the rigid structure and the blade. The chamber can be inflated to provide a cushioning layer that prevents direct contact between the rigid structure and the blade surface, thereby protecting the blade from damage while maintaining structural support capability
Solution Approach 2:
The pneumatic chamber acts as a flexible protective shell that conforms to the blade surface. When inflated, this flexible membrane provides protection against the rigid structure while allowing the structure to maintain its load-bearing capacity
2Stability of the object's composition
If a fixed lifting device is used, then structural stability is improved, but the range of motion and flexibility are restricted
Solution Approach 1:
The lifting device incorporates a dynamic pneumatic chamber that can be inflated and deflated as needed. When inflated, the chamber provides stability and support; when deflated, it allows greater flexibility and range of motion for blade manipulation during maintenance operations
Solution Approach 2:
The physical state of the pneumatic chamber is changed between inflated and deflated conditions to adapt the device's characteristics. In the inflated state, the chamber provides structural support and stability; in the deflated state, it allows for greater flexibility and ease of movement
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 securely holds and protects the blade during lifting and positional changes, enabling more freedom of movement and reducing the risk of damage, while maintaining structural rigidity and support, thus facilitating efficient maintenance operations without harming the blades.
Implementation Method 1
The pneumatic chamber is inflatable and is suitable for retaining the blade when it is inflated, immobilizing it and preventing direct contact between the structure and the blade
Data Source
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AI summary
Wind turbine blades lifting device comprising a structure (1) for supporting the blade (3) during lifting. The structure (1) is made of a rigid material and defines a hollow closed contour with a geometry suitable for surrounding the blade (3), the device (100) further comprising a pneumatic chamber (4) attached to the structure (1) and arranged in the hollow area of the closed contour defined by said structure (1) such that the pneumatic chamber (4) surrounds the blade (3) at least partially. The pneumatic chamber (4) is inflatable and is arranged in the closed contour defined by the structure (1), such that when it is inflated, said pneumatic chamber (4) retains the blade (3), immobilizing it and preventing direct contact between the structure (1) and the blade (3).