Steering Bogie Guide Frame Support Mechanism
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Solution Overview
Problem
In track-based transportation systems, the independent suspension type for steering bogies leads to increased upward-and-downward displacement of the steering guide device, causing guide wheels to potentially stick out of the guide rails, necessitating wider rails and higher facility costs.
Innovation Solution
A steering bogie design with a guide frame support mechanism that hangs from the suspension mechanism, allowing the guide frame to be supported from below the air spring, thereby suppressing upward-and-downward displacement and allowing the use of existing guide rails, and includes rockable hanging links and elastic members to maintain stability and facilitate maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the steering guide device is hung from the car body in an independent suspension type, then the suspension mechanism can be disposed between the steering guide device and the axle, but the upward-and-downward displacement of the steering guide device becomes large causing guide wheels to stick out from guide rails
Solution Approach 1:
The patent introduces a guide frame support mechanism as an intermediary component between the car body and the guide frame. This mechanism includes a support rod connected to the car body and a support plate that supports the guide frame from below, effectively mediating the connection and controlling the guide frame's displacement to prevent guide wheels from sticking out of the guide rails.
2Manufacturing precision
If the steering guide device is hung from the axle in a spring lower portion, then the displacement of the air spring does not affect the guide frame displacement, but the layout performance is low and it is difficult to hang the steering guide device from the axle in independent suspension type
Solution Approach 1:
Instead of hanging the guide frame from above (from the car body or axle), the patent inverts the support approach by supporting the guide frame from below using the guide frame support mechanism. This inverted support structure effectively controls the guide frame's upward-and-downward displacement while maintaining good layout performance in independent suspension configurations.
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
This design effectively suppresses the upward-and-downward displacement of the steering guide device within the rail width, enabling the use of existing guide rails and reducing facility costs while ensuring stable vehicle travel.
Implementation Method 1
an air spring that elastically supports the car body
Implementation Method 2
a guide wheel that is configured to roll as a result of contact with the guide rail
Data Source
AI summary
A steering bogie provided with a pair of tires (13) positioned on both sides in the vehicle-widthwise direction, a primary suspension mechanism (51) for supporting the pair of tires (13) independent from a subframe (11), and a steering guide device (14) which is guided along guide rails (6) extending along a track (5), wherein the steering guide device (14) is equipped with: a guide frame (31); guide wheels (33) which roll as a result of contact with the guide rails (6), and are rotatably supported by the guide frame (31); and a guide frame support mechanism (32) for supporting the guide frame (31) by hanging from the primary suspension mechanism (51).