Modular Jib Crane for Wind Turbine Nacelle Maintenance
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Solution Overview
Problem
Existing wind turbines face challenges in efficiently installing and maintaining components within the nacelle due to the lack of a reliable and flexible lifting solution.
Innovation Solution
A modular jib crane system for wind turbines, comprising a base element, a pillar with interchangeable modules, and pivotable crane arms, allowing for customizable configuration and easy transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed crane system is installed in the nacelle, then lifting operations can be performed, but the system lacks flexibility for different component sizes and installation scenarios
Solution Approach 1:
The crane system is divided into modular components including interchangeable boom sections, adjustable support legs, and separable mounting mechanisms. This segmentation allows the crane to be reconfigured for different component sizes and installation scenarios while maintaining manageable complexity through standardized connection interfaces
Solution Approach 2:
The crane incorporates adjustable and movable elements such as telescopic booms, extendable support legs, and repositionable mounting brackets. These dynamic features enable the crane to adapt its configuration to various lifting requirements without requiring multiple fixed crane systems
2Adaptability or versatility
If a modular crane design is used, then flexibility and adaptability are improved, but assembly and installation time increases
Solution Approach 1:
The modular crane components are pre-assembled into standardized sections with pre-configured connection interfaces during manufacturing. This preliminary preparation allows for rapid on-site assembly by simply connecting pre-fabricated modules rather than assembling individual components from scratch
Solution Approach 2:
The modular crane uses universal connection mechanisms and standardized interfaces that can accommodate different component types and configurations. This universality reduces assembly time by eliminating the need for custom fabrication or complex alignment procedures for different installation scenarios
3Force
If a traditional crane is installed, then lifting capacity is sufficient, but transportation and storage become problematic due to size constraints
Solution Approach 1:
The crane is segmented into collapsible sections including telescopic booms that can be retracted, detachable support legs, and separable mounting mechanisms. This segmentation reduces the transportation footprint and storage space requirements while maintaining full lifting capacity when assembled
Solution Approach 2:
The crane employs nested telescopic boom sections where smaller sections are contained within larger sections during transportation. This nesting arrangement minimizes the overall volume required for transport and storage while preserving the extended lifting capability when deployed
Data Source
AI summary
A modular jib crane for a nacelle for a wind turbine includes: a base element for attaching the crane to the nacelle, a pillar, wherein the pillar is coupleable with the base element at a first end of the pillar, and a first crane arm, wherein the first crane arm is coupleable with the pillar at a first end of the first crane arm, wherein at least one of the pillar and the first crane arm includes a plurality of modules coupleable with each other to form the pillar or first crane arm.