Rail Coupling Drawbar Pivoting Mechanism for Mixed Towing
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Solution Overview
Problem
Conventional couplings for mixed coupling between automatic central buffer couplings and towing hooks of rail vehicles require manual handling and complex setup, especially when adapting to different coupling types, leading to increased set-up times and difficulty in simultaneous coupling with towing hooks and mainline or metro couplings.
Innovation Solution
A coupling system featuring a pull rod with a joint arrangement that allows the coupling head to pivot into a horizontal coupling plane, enabling automatic connection to different coupling types without the need to remove the towing hook module, and incorporating an energy-absorbing element for force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional coupling system is used for mixed coupling between automatic center buffer couplings and towing hooks, then coupling compatibility is achieved, but manual handling and complex setup are required leading to increased set-up times
Solution Approach 1:
The coupling system is divided into separate functional modules: a towing hook module that can be detached and a coupling head module that remains mounted. This segmentation allows the coupling head to stay in position while the towing hook is removed, enabling quick adaptation between different coupling types without complete disassembly and reducing set-up time
Solution Approach 2:
The coupling system incorporates a pivot arrangement that allows the coupling head to dynamically change its orientation between a first position (for coupling with towing hooks) and a second position (for coupling with automatic center buffer couplings). This dynamic repositioning enables automatic adaptation to different coupling types, eliminating manual intervention and reducing set-up time
2Stability of the object's composition
If the coupling head is permanently mounted on the towing hook, then structural stability is maintained, but the ability to adapt to different coupling types requires removal and reattachment
Solution Approach 1:
The system separates the towing hook module from the coupling head module, allowing the coupling head to remain permanently mounted on the vehicle body while the towing hook can be detached. This maintains structural stability of the mounted coupling head while providing flexibility to remove and reattach the towing hook module as needed
Solution Approach 2:
The pivot arrangement enables the coupling head to dynamically reposition between different orientations without requiring removal from its mounted position. This maintains the structural stability of the mounting while providing adaptability to different coupling types through positional changes
3Measurement precision
If manual handling is used for coupling setup, then precise positioning can be achieved, but operator difficulty increases when simultaneously coupling with towing hooks and mainline couplings
Solution Approach 1:
The coupling system incorporates automatic centering arrangements and pivot mechanisms that self-adjust to achieve proper alignment and positioning. The coupling head automatically centers itself relative to the coupling partner, and the pivot arrangement self-adjusts to the correct orientation, eliminating the need for manual positioning while maintaining high positioning accuracy
Solution Approach 2:
The dynamic pivot arrangement allows the coupling head to automatically orient itself to the correct position through controlled movement. This dynamic adjustment mechanism reduces operator difficulty by automating the positioning process while maintaining precise alignment through mechanical guidance
Data Source
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AI summary
The invention relates to a drawbar (1) for a coupling (100) of a track-guided vehicle, in particular a rail vehicle, and to a corresponding coupling (100) with such a drawbar (1). The drawbar (1) has a first end region (2) on the car body side, via which the drawbar (1) is preferably detachably connected or connectable to a car body of the track-guided vehicle, a second end region (3) opposite the first end region (2), on which a coupling head (20) of an automatic coupling is interchangeably attached or attachable, and a pivot arrangement (4) via which, if necessary, the coupling head (20) of the automatic coupling can be pivoted into a horizontal coupling plane.