Wind Turbine Lifting Device Angled Arm Assembly
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Solution Overview
Problem
The existing methods for assembling wind power plant components are costly and weather-dependent, particularly due to the need for crane-based lifting, which is inefficient and can be halted by high wind speeds.
Innovation Solution
A lifting device with angled and pivotable arms, a carriage system, and multiple attachment units allows for the efficient lifting and positioning of wind turbine components, enabling faster assembly by reducing crane usage and optimizing component placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If crane-based lifting is used to transport components into the rotor, then components can be installed in or attached to the rotor, but the process is costly and dependent on prevailing weather conditions
Solution Approach 1:
The invention extracts the lifting function from the crane and integrates it directly into the lifting device through integrated fastening units with lifting eyes, allowing components to be lifted and positioned simultaneously without requiring separate crane operations
Solution Approach 2:
Components are pre-assembled on the lifting device on the ground before being transported to the rotor, allowing assembly work to be performed in favorable weather conditions before the critical crane-based lifting is needed
2Productivity
If multiple components are assembled separately using crane, then each component can be installed, but the assembly process is time-consuming and requires multiple crane movements
Solution Approach 1:
Multiple fastening units are combined into a single lifting device structure, allowing multiple rotor components to be lifted and positioned in one coordinated operation rather than requiring separate crane movements for each component
Solution Approach 2:
The lifting device serves multiple functions: it acts as a lifting mechanism, a positioning platform, and an assembly station, eliminating the need for separate crane operations for each function
3Adaptability or versatility
If a fixed lifting device structure is used, then the structure is simple, but it cannot adapt to different component positions and orientations required for rotor assembly
Solution Approach 1:
The lifting device incorporates rotatable and adjustable fastening units that can change orientation and position dynamically during the lifting process, allowing adaptation to different component requirements without requiring multiple fixed structures
Solution Approach 2:
The lifting device is divided into modular fastening units that can be independently positioned and oriented, allowing each unit to be optimized for specific component placement while maintaining overall structural simplicity
Data Source
Figure 1
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AI summary
The invention relates to a lifting device (1000) for lifting components of a wind turbine (100). The lifting device has at least a first and a second fastening unit (1110, 1120) in each case for fastening a component (1500, 1502) of a wind turbine (100) and a first arm (1200) having a plurality of bores (1001-1008). The bores (1001-1008) have different angles relative to the first and second fastening unit (1110, 1120).