Railroad Carriage Automatic Braking Mechanism
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Solution Overview
Problem
The positioning of railway laying and maintenance machines on a slope is complex and dangerous due to uncontrolled carriage movement, requiring operator intervention for braking, which can lead to accidents if the operator is inattentive.
Innovation Solution
A carriage with automatic braking and locking mechanisms that engage when placed on the track, eliminating the need for operator intervention, ensuring secure and easy positioning of the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If braking means are actuated voluntarily by an operator before positioning the machine on the carriage, then the carriage can be controlled to prevent uncontrolled movement, but the positioning process becomes more complex and time-consuming
Solution Approach 1:
The braking means are designed to be automatically actuated as soon as the carriage is placed on the track, before the machine positioning operation begins. This preliminary automatic braking action eliminates the need for manual intervention and ensures safety is established in advance, resolving the contradiction between reliability and operational complexity.
Solution Approach 2:
The carriage system performs the braking function automatically through its own weight and integrated braking mechanism, without requiring external operator intervention. The system serves itself by automatically engaging brakes when placed on the track, thereby improving reliability while reducing the complexity of the positioning process.
2Reliability
If an operator holds the carriage during machine positioning, then uncontrolled movement can be prevented, but the positioning operation becomes more difficult and requires continuous human intervention
Solution Approach 1:
The carriage automatically manages its own positioning stability through integrated braking means that engage automatically when the carriage is placed on the track. This eliminates the need for operator intervention to hold or secure the carriage, thereby improving reliability while significantly easing the operation of positioning the machine.
Solution Approach 2:
The manual mechanical action of an operator holding the carriage is replaced by an automatic braking mechanism. The braking means are actuated automatically through the carriage's own weight and integrated release mechanism, substituting human physical intervention with an automated mechanical system that improves both reliability and ease of operation.
3Reliability
If a wedge is placed in front of the rolling means to prevent carriage movement, then safety is improved, but the positioning process requires additional manual steps and time
Solution Approach 1:
The braking means are automatically engaged as soon as the carriage is placed on the track, before any positioning operations begin. This preliminary automatic action eliminates the need for subsequent manual steps such as placing wedges, thereby improving reliability while maintaining high productivity by streamlining the entire positioning process.
Solution Approach 2:
The carriage system automatically performs the safety function of preventing uncontrolled movement through its integrated braking mechanism, without requiring external manual intervention. The braking means are actuated automatically by the carriage's own weight and release mechanism, improving reliability while eliminating time-consuming manual steps and enhancing overall productivity.
4Ease of operation
If braking means are automatically actuated when the carriage is placed on the track, then the positioning process is simplified and safety is improved, but the structure of the carriage becomes more complex
Solution Approach 1:
The braking means are integrated into the carriage structure itself, combining the braking function with the existing carriage components. The braking means are actuated automatically through the carriage's own weight and release mechanism, merging multiple functions into a unified structure that improves ease of operation while minimizing additional structural complexity.
Solution Approach 2:
The carriage structure is designed to serve multiple functions: it supports the machine, enables movement along the track, and automatically actuates the braking means through its own weight. This multi-functionality allows the same structural elements to perform both mechanical support and automatic braking activation, improving ease of operation without significantly increasing overall device complexity.
5Device complexity
If the carriage is placed on a slope without automatic braking, then the structure remains simple, but the carriage may move in an uncontrolled manner and strike persons or machines
Solution Approach 1:
The braking means are automatically engaged as soon as the carriage is placed on the track, before any movement can occur. This preliminary automatic braking action prevents uncontrolled movement on slopes without requiring complex additional safety systems, as the braking function is integrated into the basic carriage structure and actuated by the carriage's own weight.
Solution Approach 2:
The carriage automatically activates its own braking mechanism through its weight and integrated release mechanism, without requiring external safety systems or complex additional structures. This self-service braking function prevents uncontrolled movement on slopes while maintaining relative structural simplicity, as the same carriage components serve both structural and braking functions.
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 carriage automatically transitions into a braking position upon placement on the track, preventing uncontrolled movement and enhancing safety by simplifying the positioning process without operator intervention.
Implementation Method 1
the locking means being movable between a locking position of the means of bearing corresponding to the braking position and an unlocking position of the rolling means corresponding to the release position
Implementation Method 2
the carriage comprises return means arranged to return the blocking means to their blocking position
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a carriage (2) that comprises a bearing portion (12) on which the track-laying and maintenance machine is to be mounted, which carriage can travel along the two rails of a railroad. The carriage includes a braking means (13, 17, 21) movable between a release position in which the carriage travels along the rails of the railroad, and a braking position in which the carriage cannot travel along the rails of the railroad, which braking means can be switched into the release position thereof when the track-laying and maintenance machine is positioned on the bearing portion, and switched into the braking position thereof when the track-laying and maintenance machine is withdrawn from the bearing portion. Switching of the braking means is carried out without operator intervention.