Modular Trolley Support with Releasable Flat Braces
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Solution Overview
Problem
Existing crane girders and overhead transport devices face challenges in cost-effective production and flexible adaptation to varying application requirements, particularly in terms of span length and load-bearing capacity.
Innovation Solution
A modular support system for trolleys, featuring a truss girder design with flat, releasably secured braces that connect the upper and lower chords, allowing for flexible adjustment of length and easy assembly at the site of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional non-releasable connections (welded or fixed) are used between braces and chords, then structural strength and stability are improved, but manufacturing complexity and cost increase, and adaptability decreases
Solution Approach 1:
The support structure is divided into modular components (chords and braces) that can be manufactured separately and assembled through releasable connections. This segmentation allows each component to be produced using simple, cost-effective processes while maintaining overall structural strength through proper connection design.
Solution Approach 2:
The connection system transitions from fixed, permanent joints to dynamic, releasable connections that can be assembled and disassembled. This enables the structure to be adapted to different span lengths and application requirements while maintaining sufficient strength through engineered connection details.
2Stability of the object's composition
If the support is manufactured as a complete, non-modular structure, then structural integrity is ensured, but adaptability to different span lengths and application requirements decreases
Solution Approach 1:
The support is segmented into standardized chords and braces that can be configured in different arrangements to achieve various span lengths. This modular approach maintains structural integrity through consistent connection designs while enabling adaptation to different application requirements.
Solution Approach 2:
The standardized components (chords and braces with releasable connections) serve multiple functions and can be reused across different support configurations and span lengths. This universal design allows a single set of components to address diverse application requirements while maintaining structural integrity.
3Ease of manufacture
If complex factory assembly and transport of complete supports is avoided, then production cost decreases, but assembly simplicity at the place of use may be compromised
Solution Approach 1:
The support components are segmented into manageable chords and braces that can be transported efficiently and assembled simply at the installation site. This segmentation reduces transport costs and enables straightforward on-site assembly through releasable connections, while factory production of individual components remains cost-effective.
Solution Approach 2:
The components are pre-manufactured with standardized connection interfaces and connection elements, allowing for simple and quick assembly at the place of use. This preliminary preparation of connection details ensures that on-site assembly is straightforward while maintaining production efficiency.
Data Source
AI summary
A support for a trolley, having a running surface that is formed on the support for the trolley, an upper chord, a lower chord and braces that connect said chords together, wherein the braces are designed to be flat, and each brace has a main surface that faces away from the support longitudinally between the upper chord and the lower chord. Two of the braces form a brace pair in each case and are arranged next to one another as viewed in the direction of the longitudinal axis of the support, preferably on the outside of opposite longitudinal sides of the support. To provide such a support, the flat braces are releasably secured to the upper chord and/or to the lower chord. The invention also relates to an overhead transport device having such a support and a trolley that can be moved along the support on the running surface.