Wind Turbine Blade Assembly Suspension Structure
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Solution Overview
Problem
The conventional method of installing large-sized wind turbine blades requires skilled labor for suspension and alignment, leading to increased construction costs and safety risks due to the need for precise adjustment of the center of gravity and rotation plane.
Innovation Solution
A method and structure that attach a suspension system to the rotor head, allowing for the lifting and installation of multiple blades as an integrated assembly using cranes, with eye plates and suspension wires to manage the blades' orientation and prevent rotational movement, eliminating the need for skilled labor in suspension and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual suspension operation with skilled workers is used, then precise adjustment of center of gravity and rotation plane can be achieved, but construction cost increases and safety risks increase
Solution Approach 1:
The blade assembly structure itself provides the suspension function through integrated eye plates and suspension wires, eliminating the need for external skilled workers to manually adjust and suspend the blades. The structure serves both its rotational function and suspension function simultaneously.
Solution Approach 2:
The suspension function is merged with the blade assembly structure by integrating eye plates directly into the rotor head and combining suspension wires with the blade support system. This integration allows the same structure to perform both suspension and structural support functions.
2Ease of manufacture
If integral assembly of three-blade assembly is used, then construction cost is reduced, but suspension and alignment becomes more complex
Solution Approach 1:
The suspension system is segmented into discrete components (eye plates, suspension wires, pins) that can be independently attached to the rotor head. This segmentation simplifies the suspension process while maintaining the integral assembly benefit, as each component can be separately installed and adjusted.
Solution Approach 2:
The eye plates are pre-attached to the rotor head during manufacturing, and the suspension wires are pre-configured with pins. This preliminary preparation simplifies the on-site suspension process, as the components are ready for direct installation without requiring complex assembly operations.
3Weight of moving object
If climbing cranes are used for suspension, then large mass blade assembly can be lifted, but skilled work for suspension and alignment is required
Solution Approach 1:
The eye plates and suspension wires act as intermediaries between the crane and the blade assembly. These intermediaries transfer the lifting force from the crane to the blade assembly while maintaining proper orientation and alignment, eliminating the need for skilled workers to manually manage the suspension process.
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
This approach significantly reduces the need for skilled labor, enhances operational efficiency, and ensures safety by stabilizing the center of gravity and rotation plane during installation, allowing for faster and safer assembly of wind turbine blades on a tower.
Implementation Method 1
by lifting the blade assembly through the suspension structure by a first crane
Implementation Method 2
The fixing a suspension plate may be achieved by inserting a pin into the holes of the plurality of protrusion sections and the hole of the suspension plate; and by inserting a slip-off prevention pin into the pin
Data Source
AI summary
In the aspect of the present invention, an installing a wind turbine is achieved by forming a blade assembly in which a plurality of blades are attached to a rotor head, by attaching a suspension structure to the rotor head, by lifting the blade assembly through the suspension structure by a first crane, and by installing the blade assembly to a nacelle of a wind turbine tower.