Rail Vehicle Bogie Cable Connection Device
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Solution Overview
Problem
The existing connection systems for parking brake cables on rail vehicles are complex and time-consuming to disconnect and reconnect, particularly when bogie interchangeability is required, often necessitating special tools and being vulnerable to environmental influences.
Innovation Solution
A connection device with a connection box on the bogie side, featuring a positive locking mechanism and bayonet-style closure element, allows for quick and tool-free disconnection and reconnection of parking brake cables, using parallel cables to distribute force directly to both axles and protect components from environmental damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional cable connection systems are used for parking brake cables on rail vehicles, then the connection can be established, but the disconnection and reconnection process becomes time-consuming and requires special tools
Solution Approach 1:
The connection device is divided into separate modular components: a connection box with a cover, connecting elements for cables, and a locking device. This segmentation allows the locking mechanism to be independently operated without requiring tools for the entire assembly, enabling quick release and reconnection of cable pulls during bogie changes
Solution Approach 2:
A locking device acts as an intermediary mechanism between the connecting elements. This locking device with a lever can be operated by hand to secure or release the connection between cable pulls, eliminating the need for special tools while maintaining a secure mechanical connection during operation
2Ease of operation
If traditional cable connection systems are used, then the connection can be established, but special tools are required for release and reconnection
Solution Approach 1:
The locking device is designed to be self-operating through a hand-operated lever mechanism. The lever can be manually moved to locked or unlocked positions without requiring external tools or specialized equipment, making the system self-sufficient for maintenance personnel at replacement facilities
Solution Approach 2:
The connection device design allows the same locking mechanism to serve multiple functions: securing the connection during operation, enabling quick release without tools, and providing a standardized interface that can be used across different bogie types, reducing the need for multiple specialized tools
3Ease of operation
If cable connections are made accessible for quick connection, then disconnection and reconnection is simplified, but the connection point becomes vulnerable to environmental influences
Solution Approach 1:
The connecting elements and locking mechanism are nested within a connection box that has a cover. This nested structure protects the internal components from environmental factors such as moisture, dust, and contaminants while still allowing access when the cover is opened for connection or disconnection operations
Solution Approach 2:
The connection box cover acts as a protective shell that seals the internal components from the environment. This shell structure maintains protection during storage and operation, and can be opened when connection operations are required, balancing environmental protection with operational accessibility
Data Source
Figure 1
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Figure 4
AI summary
A connecting device (1) for connecting a first sheathed cable (3) to a second sheathed cable (2) in the region of a truck of a rail vehicle with exchangeable trucks.