Rail Vehicle Current Collector Pressing-On Device
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Solution Overview
Problem
Current current collectors require manual intervention and time-consuming conversions to switch between different power rail systems, hindering quick changes and increasing operational costs.
Innovation Solution
A pressing-on device for current collectors that allows for automatic switching between upper and lower sliding contact positions using a rocker unit and spring device, enabling seamless transition between power rail systems without stopping the rail vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual conversion is used to switch between power rail systems, then the current collector can be adapted to different systems, but the switching process becomes time-consuming and requires intervention
Solution Approach 1:
The current collector arm is designed to be dynamically adjustable between upper and lower contact positions. The pressing-on device can be actuated to automatically switch the contact shoe between upper and lower sliding contact positions, enabling the system to adapt to different power rail configurations without manual intervention and reducing switching time
Solution Approach 2:
The pressing-on device is equipped with automatic actuation capability that can switch between upper and lower contact positions without external manual intervention. The device serves itself by automatically adjusting the contact shoe position based on the required power rail system, eliminating the need for manual conversion operations
2Reliability
If manual intervention is required for current collector conversion, then precise adjustment can be achieved, but operational costs increase and traffic flow is impeded
Solution Approach 1:
The pressing-on device automatically adjusts the contact shoe between upper and lower positions without manual intervention, maintaining reliable contact precision through controlled actuation while eliminating manual intervention requirements. This self-service capability prevents traffic disruptions and reduces operational costs by enabling seamless transitions between power rail systems
Solution Approach 2:
The device dynamically switches between upper and lower contact configurations through automated actuation of the pressing-on mechanism. This dynamic adjustment capability ensures reliable contact precision for different power rail systems while maintaining continuous traffic flow without manual intervention delays
3Device complexity
If the contact shoe is fixed in one position, then the structure is simple, but the device cannot switch between different power rail systems
Solution Approach 1:
The current collector arm is designed with dynamic positioning capability, allowing it to switch between upper and lower contact positions through actuation of the pressing-on device. This dynamic structure enables the simple basic design to adapt to different power rail systems by moving the contact shoe between two fixed positions rather than requiring complex reconfiguration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and cost-effective switching between power rail systems by automatically adjusting the contact shoe to match different power rail configurations, eliminating the need for manual intervention and reducing operational delays.
Implementation Method 1
The pressing-on force is generated by a pneumatic cylinder which is connected to the arm which it operates in the manner of a lever
Implementation Method 2
The pressing-on force is generated by a pneumatic cylinder which is connected to the arm which it operates in the manner of a lever
Data Source
AI summary
A current collector for a rail vehicle and a method for transmitting energy from power rails to the vehicle employ a contact shoe that includes an upper sliding contact surface and a lower sliding contact surface. A first pressing-on force forms a sliding contact between the upper sliding contact surface and an upper contact surface of a first power rail, when the contact shoe is in an upper sliding contact position. A second pressing-on force forms a sliding contact between the lower sliding contact surface and a lower contact surface of a second power rail, when the contact shoe is in a lower sliding contact position. The pressing-on forces may be applied by a pressing-on device attached to the contact shoe. The contact shoe may be moved into the upper sliding contact position by the first power rail, and into the lower sliding contact position by the second power rail.