Wind Turbine Lifting Tool Assembly Quick Release Mechanism
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Solution Overview
Problem
Current solutions for lifting heavy wind turbine parts, such as nacelles and rotors, require time-consuming and costly bolted connections, posing safety risks and inefficiencies due to the need for heavy hydraulic tools and complex disassembly processes, especially in offshore environments.
Innovation Solution
A tool assembly with a stem that can be freely passed through a receiving portion in the wind turbine part, locked in place for lifting, and easily removable, utilizing a quick release mechanism and optional ring or wedge locking systems to prevent disengagement during lifting, allowing for safer and faster operations without additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bolted connections are used to attach lifting tools to wind turbine parts, then the lifting operation can be performed, but the disassembling operation takes a long time and involves additional costs and safety risks
Solution Approach 1:
The lifting tool is segmented into a stem portion and a head portion that can be easily separated. The stem is inserted through the wind turbine part and locked in place, while the head portion remains externally accessible for quick attachment and detachment of lifting equipment, eliminating the need for time-consuming bolted connections.
Solution Approach 2:
The lifting tool employs a dynamic locking mechanism where the stem can be freely inserted through the wind turbine part but is automatically locked upon engagement. This allows for quick attachment during lifting operations while enabling rapid removal afterward, significantly reducing disassembling time compared to static bolted connections.
2Reliability
If bolted connections are used to attach lifting tools to wind turbine parts, then the lifting operation can be performed, but heavy hydraulic tools and electric power are required which increase cost and complexity
Solution Approach 1:
The lifting tool assembly is designed to be self-sufficient, requiring no external hydraulic power sources or electric tools for operation. The stem locks automatically upon insertion, and the quick release mechanism allows for tool removal without requiring heavy hydraulic equipment, thereby reducing device complexity and eliminating the need for additional power systems.
Solution Approach 2:
The invention extracts and eliminates the need for complex hydraulic attachment systems and electric power requirements from the lifting operation. By using a simple mechanical insertion and locking mechanism, the system removes unnecessary complexity while maintaining reliable lifting capability.
3Ease of operation
If workers perform disassembling operations outside the nacelle while lifting equipment is still in operation, then the lifting tool can be removed, but unsafe conditions are created for workers
Solution Approach 1:
The dynamic quick release mechanism allows the lifting tool to be easily detached from the wind turbine part while the lifting equipment remains in place. This enables tool removal to be performed safely from inside the nacelle without requiring workers to expose themselves to hazardous conditions outside during active lifting operations.
4Reliability
If permanent lifting tools are attached to wind turbine parts, then the lifting operation can be performed, but unnecessary weight is added to the wind turbine
Solution Approach 1:
The lifting tool is designed as a temporary attachment that is removed after the lifting operation is complete. The stem is inserted through the wind turbine part during lifting, performs its function, and then is easily removed, leaving no permanent attachment or unnecessary weight on the wind turbine structure.
Data Source
AI summary
The assembly includes a tool with a stem having a first end having a projecting portion such as a ring, and a second end adapted to be engaged by lifting equipment. The assembly also includes a stem receiving portion formed in a wind turbine part to be lifted. The stem of the tool is adapted to be freely passed through the stem receiving portion until the first end of the stem is locked to the stem receiving portion, thereby preventing the stem from separating from the stem receiving portion when lifting the wind turbine part.