Integrated Rail Vehicle Gearbox Framework Design
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Solution Overview
Problem
Current bogie frameworks for rail vehicles are not highly integrated, leading to time-consuming and labor-intensive manufacturing and installation processes, potential safety hazards, and excessive vehicle height, which limits operating conditions and increases costs.
Innovation Solution
A gearbox design for rail vehicles that integrates a primary gearbox with a secondary gearbox on both sides, forming a framework bearing beam, which simplifies the structure, enhances safety, and reduces the overall height of the bogie, allowing for reduced manufacturing costs and improved safety features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate gearbox mounting seat is disposed on the bogie framework, then the gearbox can be installed, but the manufacturing and installation process becomes complicated and time-consuming
Solution Approach 1:
The patent merges the gearbox mounting function with the bogie framework by forming a gearbox mounting seat directly from the framework structure. This integration eliminates the need for separate mounting seats, simplifies the overall structure, and reduces manufacturing and installation complexity while maintaining structural strength.
2Power
If the gearbox is added separately to the bogie framework, then the power transmission function is achieved, but the vehicle height becomes excessive
Solution Approach 1:
The patent combines the gearbox with the bogie framework structure, allowing the gearbox to be positioned within the framework's spatial envelope. This integration enables power transmission functionality while controlling the overall vehicle height to meet tunnel and elevated track requirements.
3Productivity
If various bogie parts are not highly integrated, then manufacturing flexibility is maintained, but the manufacturing process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent integrates multiple bogie components including the gearbox, mounting seats, and framework into a highly integrated assembly. This integration significantly reduces the number of separate manufacturing and installation operations, thereby improving productivity while maintaining design flexibility through modular integration.
Data Source
AI summary
Disclosed is a gearbox for rail vehicle, a bogie for rail vehicle and a rail vehicle. The gearbox for rail vehicle includes a primary gearbox (1) configured to connect with a traction motor, and a secondary gearbox (2) arranged on both sides of the primary gearbox (1) along a longitudinal direction of the rail vehicle, wherein a framework bearing beam is formed by connecting the primary gearbox (1) and the secondary gearbox (2), the primary gearbox (1) is configured to transmit power from the traction motor to the secondary gearbox (2), and the secondary gearbox (2) are configured to transmit power from the primary gearbox (1) to wheelsets of the rail vehicle.