Bogie Frame Reinforcement for Heavy Vehicle Transport Joints
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Solution Overview
Problem
Conventional devices for transporting four-wheeled vehicles lack sufficient strength in the connecting portion between the device main body and the bogie frame, particularly under the bending moment caused by the vehicle's load, limiting the range of vehicles that can be transported.
Innovation Solution
The vehicle transporting device incorporates a bogie frame with two pipes and frame members arranged in a strengthened configuration, including additional reinforcing members connected by welding, to enhance the strength of the connecting portion between the device main body and the bogie frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple structure with two aggregates arranged in parallel is used for the bogie frame, then the device complexity is reduced, but the strength of the connecting portion is insufficient
Solution Approach 1:
The bogie frame is segmented into multiple components: two pipes arranged in parallel, two frame members positioned outside the pipes, and reinforcing members extending between the pipes. This segmentation allows each component to contribute specifically to the overall strength while maintaining structural organization
Solution Approach 2:
Reinforcing members are added specifically at the tip portion where the connecting portion experiences bending moments during lift-up operations. This local reinforcement strengthens the critical area without requiring to strengthen the entire bogie frame uniformly
2Strength
If the connecting portion strength is increased to withstand bending moments, then the strength is improved, but the device complexity increases
Solution Approach 1:
The reinforcing members are integrated into the existing bogie frame structure by connecting them to the pipes and frame members. This merging approach incorporates the reinforcement function into the structural components themselves rather than adding separate, complex reinforcement systems
Solution Approach 2:
Reinforcing members are extended in the orthogonal direction (width direction) at the tip portion, adding structural strength in a dimension perpendicular to the longitudinal direction of the pipes. This dimensional approach provides bending moment resistance without lengthening the longitudinal structure
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 configuration increases the strength of the connecting portion, enabling the transportation of four-wheeled vehicles with larger body weights and expanding the range of vehicles that can be handled.
Implementation Method 1
The two pipes facing each other and the reinforcing member may be connected by welding.
Data Source
AI summary
A vehicle transporting device includes a bogie frame, a device main body, and an upright frame. The upright frame connects a tip portion of the bogie frame and the device main body. The bogie frame includes two frame members and at least two pipes, which are disposed parallel to a longitudinal direction of the bogie frame. The two frame members are disposed parallel to the at least two pipes at a position outside the at least two pipes in a width direction of the bogie frame. The at least two pipes include two pipes facing each other in the width direction. A reinforcing member extending in the width direction is provided at the tip portion of the bogie frame and between the two facing pipes. The two frame members, the reinforcing member, and the upright frame are connected to each other at the tip portion of the bogie frame.