Railway Air Brake Hose Bracket With Spring Suspension
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Solution Overview
Problem
Existing railway car air brake hose support systems face challenges in securely mounting and maintaining the air brake hose assemblies, particularly on cushioned railway cars, which can lead to unintended uncoupling and safety concerns during transport, especially at high speeds or when negotiating curves.
Innovation Solution
The development of a durable and securely mountable air brake hose support bracket that attaches directly to the coupler casting, allowing for controlled movement while avoiding excessive hose movement, with features such as wrap-around attachments and grasping connectors to ensure stable suspension and easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air brake hose support bracket is made more secure and durable to prevent uncoupling, then the reliability improves, but the device complexity increases
Solution Approach 1:
The support bracket is divided into multiple functional segments: a coupler engagement portion with teeth that engage the coupler's toothed surface, a hose support portion that holds the air brake hose, and a connection mechanism. This segmentation allows each part to be optimized independently for its specific function while maintaining overall reliability without excessive complexity.
Solution Approach 2:
The bracket incorporates dynamic elements including a spring mechanism that allows controlled movement and adjustment, and a rotatable connection point that permits the hose to move with train operations. This dynamic design maintains secure engagement while accommodating operational movements without requiring overly complex rigid structures.
2Ease of operation
If the support bracket allows controlled movement to facilitate connection, then the ease of operation improves, but the stability of the hose assembly deteriorates
Solution Approach 1:
The bracket employs a spring-loaded mechanism that provides controlled movement during connection operations, allowing the hose to be easily attached and detached. Once connected, the spring mechanism maintains stable positioning by providing continuous gentle pressure, thus achieving both ease of operation and operational stability.
Solution Approach 2:
The connection mechanism changes its mechanical parameters dynamically: during connection, it allows greater movement range and lower resistance; during normal operation, it transitions to a more rigid, stable configuration with restricted movement. This parameter change enables the system to satisfy both contradictory requirements at different operational stages.
3Adaptability or versatility
If the bracket is designed for universal fitment across various coupler styles, then the adaptability improves, but the manufacturing precision requirements worsen
Solution Approach 1:
The coupler engagement portion is designed with universal compatibility features including a set of teeth with varying engagement geometries that can accommodate different coupler styles (e.g., AAR, SABCO, Knuckle couplers). The toothed surface and engagement mechanism are configured to work with multiple coupler types without requiring custom-bracket designs, achieving universality while maintaining adequate manufacturing tolerances.
Solution Approach 2:
Different portions of the engagement mechanism have locally optimized geometries: certain teeth are shaped for specific coupler types, while others provide general compatibility. This local quality variation allows the single bracket design to accommodate diverse coupler styles without compromising engagement precision for any specific type.
4Reliability
If the bracket restricts hose movement to prevent uncoupling, then the reliability improves, but the ease of operation for connection deteriorates
Solution Approach 1:
The bracket incorporates a spring mechanism and rotatable connection point that dynamically adjust the restriction level: during connection operations, the mechanism allows greater movement freedom to facilitate easy attachment; during normal operation, it transitions to a more restrictive configuration that prevents uncoupling, thus resolving the contradiction between reliability and ease of operation.
Data Source
AI summary
A railway car air brake hose support bracket has an upper portion with first and second attachment members, a lower portion and an air hose connector. The first attachment member enters into and engages a portion of an accessible compartment of an uncoupling mechanism housing below the coupler head, and the second attachment member is secured to an air brake hose support lug of the railway car coupler. The air brake hose connector engages an air brake hose assembly and suspends this hose assembly from the railway coupler at a predetermined distance above the rail bed. A method of installing the hose support bracket includes positioning the first and second attachment members, securing them in place, and attaching one or more railway brake hose units to the air hose connector, either before or after this positioning and securing of the upper portion of the bracket.