Modular Conveyor Trolley with Grid-Hole Crossbeams
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Solution Overview
Problem
Existing transport trolleys for underground tunnel construction are not adaptable to project-specific requirements without losing material, limiting their reuse and modification capabilities.
Innovation Solution
A modular transport trolley design featuring crossbeam bars with uniform grid spacing holes, allowing for combination of standardized parts to create project-specific dimensions, along with height-adjustable lifting legs and extendable lattice girders, enabling flexible assembly and adaptation without material loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transport trolleys are manufactured specifically for each project, then they meet project-specific requirements, but they cannot be reused and modification costs increase
Solution Approach 1:
The transport trolley is divided into modular components including crossbeam bars with standardized hole patterns, lifting legs, trusses, and connection plates. Each component can be independently selected and reconfigured to meet different project requirements, enabling both customization and reuse across multiple projects.
Solution Approach 2:
The patent creates a universal modular system where standardized components with uniform grid spacing holes can be used across different transport trolley configurations. The same crossbeam bars, lifting legs, and connection plates can serve multiple projects with varying dimensions, achieving both project-specific adaptation and reusability.
2Ease of manufacture
If previously used transport trolleys are reused by separating, cutting to length, welding together and adding new parts, then costs are saved, but substance is lost with each modification
Solution Approach 1:
The transport trolley components are pre-manufactured with standardized hole patterns and connection interfaces before deployment. This preliminary standardization eliminates the need for cutting, welding, and modifying components during reuse, allowing direct assembly of existing parts for new projects without material loss.
Solution Approach 2:
Instead of physically modifying components (cutting, welding), the patent achieves adaptation by changing the configuration parameters - selecting different combinations of standardized crossbeam bars with various lengths and hole patterns. This parameter-based adaptation preserves all material while achieving project-specific dimensions.
3Strength
If crossbeams are made as single rigid pieces, then structural strength is maintained, but adaptability to different dimensions is reduced
Solution Approach 1:
Crossbeams are segmented into multiple crossbeam bars that can be connected through standardized connection plates with uniform grid holes. This segmentation maintains structural strength through rigid plate connections while allowing flexible configuration of different beam lengths and hole patterns to match various project dimensions.
Solution Approach 2:
The crossbeam system transitions from fixed rigid pieces to a dynamic, reconfigurable assembly. The standardized hole patterns enable the same crossbeam bars to be configured in multiple positions and arrangements, providing dimensional adaptability while maintaining structural integrity through rigid plate connections.
4Ease of manufacture
If lifting legs are fixed in position, then manufacturing is simplified, but height adjustment capability is lost
Solution Approach 1:
The lifting legs are designed with multiple holes along their length that align with the uniform grid pattern on crossbeam bars and connection plates. This allows the lifting legs to be positioned at different heights by simply changing the attachment location, providing height adjustability without complex mechanisms while maintaining manufacturing simplicity.
Data Source
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AI summary
The trolley (13) has height-adjustable lifting legs (51), and two trussed beams (53, 53') for connecting the lifting legs, where the legs have fastening flanges (75) on three sides. Transverse beams (43) are screwed with the trussed beams for connecting the trussed beams with one another. The transverse beams are made from transverse beam rods (40.1-40.4) that are screwed among each other, where the rods comprise steel sections with an upper belt (44) and a lower belt (46). Trussed bars are provided at the trussed beams and comprise a perforation with borings in grid spacing.