Segmented Lattice Piece for Crane Boom Payload Optimization
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Solution Overview
Problem
Lattice booms in cranes face challenges in achieving higher payloads due to weight constraints from the number of lattice pieces used, leading to strain on the crane and limitations in lift height and payload capacity.
Innovation Solution
A lattice piece design featuring separable parts connected via releasable points and spacer elements, allowing for variable cross-sections and diameters, enabling flexible assembly to accommodate larger payloads while maintaining stability and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the number of lattice pieces is increased to achieve higher payloads, then the payload capacity is improved, but the boom weight increases significantly
Solution Approach 1:
The lattice piece is divided into multiple separable parts (first part and second part) that can be connected or disconnected. This segmentation allows the boom to be assembled with fewer components while maintaining the necessary payload capacity, thereby reducing the overall boom weight compared to traditional designs that require more lattice pieces.
Solution Approach 2:
The lattice piece parts are connected via releasable connection points that allow dynamic adjustment of the boom configuration. The connection points can be selectively engaged or disengaged to adapt the boom structure to different payload requirements, enabling weight optimization without sacrificing payload capacity when needed.
2Strength
If the lattice piece dimensions are increased to handle larger payloads, then the payload capacity is improved, but the boom weight increases
Solution Approach 1:
Instead of using fewer but larger lattice pieces, the invention segments the lattice piece into multiple smaller parts that are connected through releasable connection points. This approach maintains the structural strength needed for large payloads while avoiding the weight penalty of oversized individual components.
Solution Approach 2:
The lattice piece parts are designed with optimized local geometries and connection structures that provide strength exactly where needed for payload handling, rather than uniformly increasing the dimensions of entire lattice pieces. This localized optimization reduces unnecessary weight while maintaining payload capacity.
3Strength
If multiple strands are used in the lattice boom, then the payload capacity is improved, but the boom weight increases significantly
Solution Approach 1:
The invention achieves enhanced payload capacity through segmentation of individual lattice pieces rather than through multi-strand configurations. By dividing lattice pieces into separable parts with releasable connections, the structural strength is optimized without duplicating entire boom strands, thereby avoiding the weight increase associated with multi-strand designs.
4Strength
If the lattice piece cross-section is increased to handle larger payloads, then the payload capacity is improved, but the adaptability to different applications decreases
Solution Approach 1:
The releasable connection points enable dynamic reconfiguration of the lattice piece parts, allowing the boom cross-section to be adjusted for different application requirements. The connection points can be selectively engaged to create larger cross-sections when high payload capacity is needed, or disengaged for lighter applications, providing adaptability across different crane tasks.
Solution Approach 2:
The separable lattice piece design with releasable connections creates a universal component system that can be configured for multiple applications. The same lattice piece parts can be assembled with different connection configurations to suit various payload requirements, making the boom adaptable to diverse crane operations without requiring application-specific custom designs.
Data Source
AI summary
The present invention relates to a lattice piece for a crane boom comprising at least two lattice piece parts which are separably connected to one another in the longitudinal direction by means of one or more releasable connection points, wherein one or more lattice piece parts have one or more longitudinal tubes at least sectionally in the region of the connection points.