Concrete Pump Placing Boom Folding for Low-Height Deployment
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Solution Overview
Problem
Conventional concrete pump masts require a significant height change from transport to working position, which is problematic in environments with height restrictions, leading to operational safety risks and restricted visibility for operators.
Innovation Solution
A placing boom with a unique arm assembly design, featuring pivotable mast arms and a rotating head, allows for minimal height requirements during transition from transport to working position, enabling operation within confined spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional placing boom arms are positioned in retracted state in front of operator's cab during transport, then the pump can be moved into building, but operator's view is severely restricted and safety is compromised
Solution Approach 1:
The patent repositions the retracted boom arms from the horizontal plane (in front of cab) to the vertical plane (above cab), allowing transport through buildings without blocking the operator's forward view while maintaining the ability to deploy boom arms vertically for concrete placement operations
2Ease of operation
If conventional placing boom is moved to working position outside building before entering, then operator's view is maintained, but height restrictions prevent operation inside building
Solution Approach 1:
The boom arms are designed to fold vertically above the cab rather than horizontally in front, transitioning from horizontal retraction to vertical stacking, enabling the pump to enter buildings with limited headroom while the operator maintains an unobstructed view during transport
3Ease of operation
If conventional placing boom requires significant height change from transport to working position, then boom can be deployed for concrete placement, but operation is prevented in environments with height restrictions
Solution Approach 1:
The boom arm folding mechanism utilizes the vertical dimension by stacking arms above the cab in transport position, minimizing the height profile required for entry, while still allowing full deployment of boom arms for concrete placement operations in the working position
Solution Approach 2:
The boom arms are designed to nest within each other through folding, with each arm folded over the previous one in a Z-fold configuration, creating a compact vertical stack that reduces the overall height requirement for transport through restricted spaces
Data Source
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AI summary
The invention relates to a placing boom for a concrete pump, in particular a mobile concrete pump, comprising an arm assembly having several mast arms pivotable relative to each other, and a rotary head rotatable about an axis of rotation and connected to a first mast arm of the arm assembly, characterized in that in a transport position of the placing boom, at least one further mast arm is folded over the second mast arm, preferably several further mast arms are folded in a Z-fold over the second mast arm.