Chamfered Track Profile for Lifting Devices
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Solution Overview
Problem
The production of tracks for lifting devices is time-consuming and prone to buckling due to welded structures, which are costly and lack the necessary rigidity and lightweight construction.
Innovation Solution
A method involving chamfering steps to form a continuous cross-sectional profile from plate-like materials, eliminating the need for welding and allowing uninterrupted force flow, thereby increasing rigidity and reducing production time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If welded structures are used to construct tracks, then individual construction is simple, but production is time-consuming and the structure may buckle during production
Solution Approach 1:
The patent merges the load-bearing support, side flanks, and receiving flanges into a single integrated plate-like main body that is chamfered in one continuous process. This eliminates the need for separate welding operations to join individual components, thereby simplifying construction while dramatically reducing production time and preventing buckling issues associated with welded structures.
2Ease of manufacture
If welded structures are used to construct tracks, then individual construction is simple, but the structure lacks sufficient rigidity and requires re-alignment
Solution Approach 1:
By combining all track components into a single chamfered plate body, the patent creates a monolithic structure with inherent high rigidity. The continuous chamfering process produces uninterrupted force flow lines through the entire cross-section, eliminating the weak points created by welded joints and ensuring dimensional stability without requiring re-alignment.
3Ease of manufacture
If welded structures are used to construct tracks, then individual construction is simple, but production costs increase
Solution Approach 1:
The patent replaces the mechanical welding process with a chamfering process that works on a single plate-like material. This substitution eliminates the need for welding equipment, consumables, and the associated quality control procedures, thereby reducing production complexity and costs while maintaining construction simplicity.
4Adaptability or versatility
If traditional track construction is used, then individual components can be assembled, but the force flow is interrupted at joints
Solution Approach 1:
The patent merges all components into a single continuous plate body, ensuring that force flow lines extend uninterrupted along the entire cross-section. The chamfered transitions between load-bearing support, side flanks, and receiving flanges create smooth force distribution paths, eliminating the discontinuities introduced by welded joints while maintaining the adaptability of the track design.
Data Source
AI summary
The invention relates to a method for producing a track (14) for a track lifting device (11) and to a track (14) which can be transferred from an idle position into a working position (12) by at least one lifting unit (15), wherein a main body (27) of the track (14) is made from a plate-shaped material, wherein the main body (27) is transferred by a plurality of chamfering steps of the plate-shaped material into an end shape in which, between a load pick-up (16) and a respective side flange (31) adjoining same laterally, a chamfer (28, 29) is formed having a chamfer direction of the chamfers directed toward each other, and each side flange (31) formed in this way is delimited by at least one further chamfer (32, 33) having a chamfer direction opposite to the chamfer direction of the chamfers (28, 29). A receiving web (34) is formed with a travel surface (36) directed toward the running surface (17) of the load pick-up (16).