Adjustable Boom Support Platform for Crane Relocation Under Obstructions
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Solution Overview
Problem
The process of disassembling and reassembling cranes for relocation is time-consuming and costly, often taking days, which delays construction projects and increases operating expenses due to the need to avoid obstructions like electrical lines and uneven terrain.
Innovation Solution
A vehicle system that supports and stabilizes the crane's boom arm during relocation by lowering it to a horizontal position, allowing the crane to be moved without disassembly, using a skid-based steering vehicle with a platform that adjusts height and tilt to maintain the boom arm's position, and equipped with sensors for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the crane boom arm is kept assembled for relocation, then relocation time is reduced, but the crane cannot pass under electrical lines and cables due to height constraints
Solution Approach 1:
The boom arm is made dynamically adjustable between vertical and horizontal positions through a cable system. The cables can be loosened to lower the boom arm horizontally for transport under obstructions, then tightened to raise it vertically for operation, allowing the crane to adapt to different spatial constraints during relocation
Solution Approach 2:
The spatial configuration parameter of the boom arm is changed from vertical to horizontal position during relocation. By altering the boom arm's orientation parameter, the crane passes under electrical lines without disassembly, reducing relocation time while avoiding harmful impacts
2Object-affected harmful factors
If the crane boom arm is disassembled for relocation, then the crane can pass under electrical lines, but relocation time increases by 1-4 days
Solution Approach 1:
The cable system enables dynamic reconfiguration of the boom arm from vertical to horizontal position without disassembly. This dynamic adjustment allows the crane to pass under electrical lines while maintaining the boom arm as an integrated component, eliminating the time-consuming disassembly and reassembly process
Solution Approach 2:
The boom arm's spatial parameter is changed from vertical to horizontal configuration during transport. This parameter change allows the crane to navigate under obstructions without disassembly, reducing relocation time by 1-4 days while avoiding harmful impacts
3Productivity
If the boom arm is lowered to horizontal position for transport, then the crane can move without disassembly, but the boom arm may become damaged during transport
Solution Approach 1:
The vehicle acts as an intermediary support structure for the horizontally positioned boom arm during transport. The vehicle's platform carries the boom arm securely, preventing damage while allowing the crane to move quickly without disassembly, thus maintaining both productivity and reliability
Solution Approach 2:
The crane's own cables and hoisting mechanism are used to lower and secure the boom arm in horizontal position for transport. This self-service approach allows the boom arm to be positioned safely without external equipment, maintaining integrity while enabling quick relocation
Data Source
AI summary
A vehicle may be configured with an adjustable horizontal planar platform for receiving a load, such as a boom arm of a crane and transporting the load to a new location. In some cases, the platform is configured to swivel and tilt in order to maintain an alignment with a second vehicle during transport of a load.