Heatable Rail Brake Anti-Freeze Mechanism
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Solution Overview
Problem
Existing rail brakes face challenges in operability, particularly at low temperatures, where they can freeze to the rail, making them difficult to remove and operate effectively.
Innovation Solution
Incorporating a heating element within the track brake's U-shaped trough, specifically designed to heat the sliding strip, which prevents freezing and allows for efficient operation down to temperatures below -25°C, and optionally connecting to a point heating system or having a separate control unit for remote operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the track brake is used at low temperatures without heating, then the structure remains simple and cost-effective, but the brake carrier freezes to the rail making it difficult to remove and operate
Solution Approach 1:
A heating element is introduced as an intermediary component between the brake carrier and the rail. This heating element acts as a mediator that prevents freezing by generating heat when current flows through it, thereby eliminating the adhesive freezing problem without requiring fundamental changes to the brake carrier or rail structures.
Solution Approach 2:
The physical state of the interface between the brake carrier and rail is changed by introducing thermal energy. By changing the temperature parameter through the heating element, the system transitions from a frozen state (where removal is difficult) to a non-frozen state, enabling easy removal and operation at low temperatures.
2Object-affected harmful factors
If a heating element is added to prevent freezing, then weather resistance and operational reliability improve, but the device complexity and manufacturing cost increase
Solution Approach 1:
The heating element serves as a relatively simple intermediary component that can be integrated into the existing track brake structure. It provides effective protection against freezing while maintaining reasonable manufacturing simplicity, as the heating element itself is a standard component that can be easily installed and connected.
3Adaptability or versatility
If the heating element is controlled remotely via signal box, then operational flexibility and control capability improve, but the control system complexity increases
Solution Approach 1:
The heating element is designed to serve multiple functions: it can be controlled remotely via the signal box for flexible operation, and it can also be integrated with existing switch heating systems for automated control. This multi-functionality approach allows the same heating component to adapt to different control scenarios without requiring separate dedicated systems.
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
The heating element enhances weather resistance and operational reliability by preventing freezing, allowing the track brake to function effectively in low temperatures and providing remote control options, thus improving the overall performance and usability of the rail brake.
Implementation Method 1
the track brake includes at least one heating element for heating the slide bar
Data Source
Figure 1
AI summary
A track brake (10) is provided for holding or braking a wheel of a rail vehicle located on a rail (20). The track brake (10) has a U-shaped trough (11) comprising two legs (17) and, on each leg (17), a slide rail (12) arranged at the end of the leg (17) and a brake carrier (13) movably arranged on the slide rail (12) in the transverse direction (18). In its installed state, the track brake (10) is arranged relative to the rail (20) such that the rail (20) is positioned between the legs (17) of the trough (11). According to the invention, the track brake (10) includes at least one heating element (15) for heating the slide rail (12).