Split Crane Superstructure for Transport Length Limits
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Solution Overview
Problem
Conventional rotating superstructures for cranes face complications during transportation due to the need to separate and reattach the mast and winch, which exceeds the permitted length limits and complicates assembly and disassembly processes.
Innovation Solution
The rotating superstructure is configured to split into a front block with a power unit and a rear block with a boom-raising unit, using pins and guiding sections to securely join and separate the blocks, allowing for easier transportation and reassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the rotating superstructure is configured as a single integrated unit, then the structural strength and stability are improved, but the transportation complexity increases due to length limits requiring separation of mast and winch
Solution Approach 1:
The rotating superstructure is divided into two separate blocks: a front block containing the power unit and a rear block containing the winch and boom-raising unit. This segmentation allows each block to be transported independently within length limits, eliminating the need to separate the mast and winch, thus reducing transportation complexity while maintaining structural integrity through proper connection mechanisms.
2Length of moving object
If the rotating superstructure is split into separate components for transportation, then the transportation feasibility is improved, but the assembly and disassembly complexity increases
Solution Approach 1:
The superstructure is segmented into front and rear blocks that can be separated for transportation. The connection mechanism uses a pin-based system with guiding sections that automatically align the blocks during assembly, significantly reducing the complexity of reassembly compared to conventional methods requiring multiple separate components.
Solution Approach 2:
A pin connection mechanism serves as an intermediary element between the front and rear blocks. The pin, guided by guiding sections, provides a simple yet effective means of joining the blocks, reducing assembly complexity compared to direct mechanical coupling of multiple components.
3Length of moving object
If the winch is removed from the rotating superstructure for transportation, then the length limit compliance is improved, but the reassembly complexity and time consumption increase
Solution Approach 1:
The winch and boom-raising unit are merged into the rear block, which remains attached to the front block during transportation. This merging eliminates the need to separately handle and reattach the winch, reducing reassembly time and complexity while ensuring the overall structure complies with transportation length limits.
Data Source
AI summary
A rotating superstructure includes: a front block on which a power unit that includes a prime mover; and a rear block on which a unit for raising and lowering a boom that includes a winch, a, and an arm. And the rotating superstructure is configured to be split into the front block and the rear block.