Meter Gauge Bogie Driving Device Space Optimization
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Solution Overview
Problem
The existing meter gauge power bogie's structure is inefficient due to the limited space for the driving device, resulting in restricted traction power and vehicle speed, primarily because of the narrow rail gauge and the integral structure of the traction motor, gearbox, and dental coupling.
Innovation Solution
A compact driving device design where the traction motor and gearbox form an integral structure with the rolling axial suspension box, connected via a motor derrick, allowing for a more efficient use of space and increased traction power by arranging the traction motor at the front or rear of the rolling axial suspension box and the gearbox between the motor and wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the traditional integral structure with connecting piece, derrick and dental coupling is used, then the driving device can be assembled, but the structure takes up large space and limits the power of the traction motor
Solution Approach 1:
The patent merges the connecting piece, derrick, and dental coupling into an integrated motor derrick structure. The motor derrick directly connects the traction motor to the gearbox, eliminating the need for separate connecting pieces and dental couplings. This consolidation reduces the overall space occupied by the driving device while maintaining structural integrity and power transmission capability, thereby enabling larger traction motors to be installed within the same space constraints.
2Speed
If the traction motor power is increased to improve vehicle speed, then the vehicle speed improves, but the space required for the traction motor increases which is not available in meter gauge bogie
Solution Approach 1:
By integrating the motor mounting structure and power transmission components into a compact motor derrick, the patent reduces the total volume required for the driving device. This space optimization creates room for more powerful traction motors, directly enabling higher vehicle speeds in meter gauge applications where space is constrained by the narrow rail gauge.
3Ease of operation
If the connecting piece, derrick and dental coupling are arranged separately, then the driving device can function, but the structure is complex and takes up large space
Solution Approach 1:
The patent combines multiple separate components (connecting piece, derrick, dental coupling) into a single integrated motor derrick structure. This merger simplifies the overall structure by reducing the number of individual parts and their associated mounting requirements, while maintaining all necessary functions for power transmission from the traction motor to the gearbox. The integrated design reduces structural complexity and facilitates easier assembly and maintenance.
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention provides a meter gauge power bogie and a meter gauge vehicle, the meter gauge power bogie includes two wheelsets arranged in a longitudinal direction of a vehicle body, a framework arranged on the wheelsets and a driving device, the wheelset includes an axle extending along the width of the vehicle body and wheels press-fitted with the axle and located at both ends of the axle, a traction motor is arranged at a front side or a rear side of a rolling axial suspension box, and via the rolling axial suspension box enclosing an axle of the driving device of the bogie, and a gearbox being arranged between ends of the traction motor and the rolling axial suspension box at the same side and the corresponding wheel, every two of the rolling axial suspension box, a housing of the traction motor and the box body of the gearbox are fixedly connected, thus the rolling axial suspension box, the traction motor and the gearbox form an integral structure, which may be connected with a framework via a motor derrick, rendering the structure of the driving device more compact, thus saving space for mounting the traction motor, and solving the technical problem in the prior art that arrangement of the driving device occupies great space.