Self-Movable Boom System for Precise Construction Material Handling
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Solution Overview
Problem
Conventional tower cranes require a large height and complex operations, leading to positional errors, increased personnel costs, and difficulties in automating construction material movements due to their structure, which limits their efficiency and flexibility in multistoried building construction.
Innovation Solution
A self-movable boom system with a boom disposed perpendicular to a building clamp structure, equipped with a circumferential moving unit, a lifting-up unit, and a boom moving unit, allowing for independent movement and positioning of the boom along the building clamp structure, reducing positional errors and enhancing operational flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional tower crane is used to move construction materials, then the working area is sufficient, but the height is excessively large and positional errors occur due to angle errors at the end of the tower crane
Solution Approach 1:
The tower crane is divided into multiple segments: a base unit with a first boom, and multiple movable units with second booms that can independently position materials. This segmentation allows each unit to operate within a smaller, more precise range while collectively covering the required working area, thereby reducing positioning errors.
Solution Approach 2:
The movable units are equipped with circumferential moving units that enable them to move not only vertically but also in a circumferential direction around the building. This adds a dimensional aspect to the positioning system, allowing materials to be delivered from multiple angles and reducing the impact of angle errors on positioning accuracy.
2Productivity
If a conventional tower crane is used, then construction materials can be moved, but personnel expenses are increased due to the need for highly-trained operators
Solution Approach 1:
The movable units are equipped with autonomous moving capabilities through circumferential moving units and lifting units, reducing the need for manual intervention and highly-trained operators. The system can automatically position materials by coordinating the movements of multiple units, thereby lowering personnel expenses while maintaining construction efficiency.
Solution Approach 2:
Each movable unit is designed to perform multiple functions: lifting materials, moving circumferentially around the building, and positioning materials at different locations. This multi-functionality reduces the need for specialized operators for different tasks, as a single operator can control multiple versatile units.
3Duration of action of moving object
If a conventional tower crane is used for multistoried building construction, then materials can be moved to upper floors, but the support structure for the base mast needs to be very enlarged
Solution Approach 1:
The material transport function is segmented across multiple movable units, each with its own lifting unit and boom. This distributes the load and structural requirements across several smaller units rather than requiring a single, massively enlarged base mast support structure, thereby reducing the weight and complexity of the stationary support structure.
Solution Approach 2:
The movable units can move circumferentially around the building and position materials at different radial distances from the center. This allows materials to be transported to upper floors without requiring the base mast to extend to excessive heights, thereby reducing the structural requirements of the base mast support structure.
4Productivity
If a conventional tower crane is used, then construction materials can be moved, but automation of construction processes is difficult to implement due to positional errors
Solution Approach 1:
The system incorporates control units that can monitor and adjust the positioning of movable units and materials in real-time. This feedback mechanism compensates for angle errors and positioning deviations, enabling automated construction processes by providing the precision and control necessary for automation.
Solution Approach 2:
The movable units are designed with integrated lifting, circumferential moving, and positioning capabilities, all controllable through a centralized control system. This multi-functionality and integration facilitate automation by reducing the need for manual intervention and enabling coordinated, automated material handling processes.
Data Source
AI summary
A self movable boom system is provided. The self movable boom system include: a boom disposed on a plane perpendicular to a building clamp structure; and a moving unit apparatus including a circumferential moving unit which is disposed between the boom and the building clamp structure to move the boom on a plane perpendicular to the building clamp structure, a lifting-up unit of which one end is disposed toward the circumferential moving unit and of which other end is disposed toward the building clamp structure to move the boom along a longitudinal direction of the building clamp structure, and a boom moving unit which moves an object along the longitudinal direction of the building clamp structure and along a longitudinal direction of the boom.