Railcar Bogie Separation via Detachable Level Valve
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Solution Overview
Problem
Conventional railcar configurations make it difficult to separate the bogie constituting member from the carbody when the automatic level controlling valve is connected to the air supply pipe, as the interface plate obstructs the separation process.
Innovation Solution
The automatic level controlling valve is detachably attached to a side surface of the interface plate or the lower portion of the carbody using a first attaching portion and attaching means, allowing for separation of the bogie constituting member from the carbody in either configuration, and a jig is used to facilitate attachment to the carbody without interference from the interface plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the automatic level controlling valve is attached to the interface plate from below, then the maintenance of the automatic level controlling valve can be performed together with the maintenance of the bogie constituting member, but the interface plate obstructs the separation of the carbody from the bogie constituting member when the valve is connected to the air supply pipe
Solution Approach 1:
The automatic level controlling valve is segmented from the interface plate through detachable attachment, allowing it to be separated into independent components. The valve can be detached from the interface plate and reattached to the carbody, enabling separate maintenance of the bogie constituting member and carbody while maintaining connectivity to the air supply system.
Solution Approach 2:
The attachment configuration of the automatic level controlling valve is made dynamic and adjustable. The valve can be attached to different locations (interface plate or carbody) depending on maintenance requirements, transforming a static fixed attachment into a flexible, reconfigurable system that adapts to different operational and maintenance scenarios.
2Adaptability or versatility
If the automatic level controlling valve is detachably attached to the interface plate or carbody, then separate maintenance of bogie and carbody becomes possible, but additional attaching portions and attaching means increase device complexity
Solution Approach 1:
The attaching portions and attaching means are designed as universal components that can accommodate multiple attachment configurations. The same attaching mechanism can attach the valve to either the interface plate or the carbody, reducing the need for separate specialized attachment systems for each location and thereby limiting the increase in overall device complexity.
Data Source
AI summary
A railcar includes: a carbody; a bogie constituting member including an interface plate provided at a lower portion of the carbody, an air spring, and a bogie; an automatic level controlling valve configured to maintain a height of the spring within a certain range; a first attaching portion provided on a side surface of the plate, the valve being detachably attached to the side surface of the plate by the first attaching portion; and attaching means provided at the lower portion of the carbody, the valve being detachably attached to the lower portion of the carbody by the attaching means, the bogie constituting member being separable from the carbody in a state where the valve is attached to the side surface of the plate through the first attaching portion or a state where the valve is attached to the lower portion of the carbody through the attaching means.