Oblique Traction Device Bogie for Light Locomotives
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Solution Overview
Problem
Conventional bogie structures for shunting locomotives are large and complex, making them unsuitable for light locomotives, and internal combustion engines cause significant air pollution, especially in enclosed spaces.
Innovation Solution
A bogie design with a first end beam featuring a downward and inward concave structure, allowing an oblique arrangement of the traction device, combined with a frame, axle, driving, and braking devices, to reduce overall length and enhance compactness, suitable for light locomotives, and incorporating a stone discharging and sanding device for environmental friendliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a conventional bogie structure is adopted for shunting locomotives, then the starting traction force is sufficient (greater than or equal to 350 kN), but the structure becomes complex and the size is large, making it unsuitable for light locomotives
Solution Approach 1:
The bogie structure is divided into modular components including a frame, traction device, axle device, driving device, and braking device. The frame is segmented into side beams, end beams, and cross beams, allowing for simplified assembly and reduced complexity while maintaining the required traction force of 350 kN or more.
Solution Approach 2:
The end beams are designed with three-dimensional recesses (first recess at upper portion, second recess at side portion) that accommodate the traction device in an oblique arrangement. This dimensional optimization allows the traction device to be positioned more efficiently, reducing the overall bogie size and complexity while preserving the necessary traction capability.
2Force
If a conventional bogie structure is adopted for shunting locomotives, then the traction capability is sufficient, but the overall size and length increase, making it unsuitable for light locomotives with reduced length requirements
Solution Approach 1:
The traction device is nested within the recesses of the end beams, with the first recess accommodating the upper portion and the second recess accommodating the side portion. This nesting arrangement allows the traction device to be integrated compactly into the frame structure, reducing the overall bogie length while maintaining sufficient traction capability.
Solution Approach 2:
The oblique arrangement of the traction device, enabled by the three-dimensional recesses in the end beams, optimizes the spatial utilization. This angular positioning allows the traction device to be compactly integrated, reducing the longitudinal length of the bogie while preserving the necessary traction force for light locomotives.
3Force
If internal combustion engine power is used in shunting locomotives, then the starting traction force is sufficient (greater than or equal to 350 kN), but air pollution is caused, especially in enclosed spaces
Solution Approach 1:
The patent replaces the internal combustion engine with an electric motor (driving device) that drives the axle device through a driving connection. This substitution eliminates the harmful emissions associated with internal combustion engines, particularly in enclosed spaces like subways and mountains, while maintaining the capability to generate the required starting traction force of 350 kN or more through electric power transmission.
Data Source
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AI summary
The present disclosure relates to the technical field of locomotives, and provides a bogie and a locomotive having same. The bogie comprises a framework, a traction device, an axle device, a driving device and a braking device; two ends of the traction device are respectively connected to a first end beam and a vehicle body, one end of the traction device is located at the lower portion of the first end beam so that the traction device is obliquely provided, and the opening of a second recess faces the direction of the other end of the traction device; the axle device is connected to the framework; the driving device is connected to the framework and is in driving connection with the axle device; and the braking device is connected to the framework. The traction device is obliquely provided, and a part of section body of the traction device is located below the first end beam, increasing an overlapping part of the traction device and the first end beam, reducing the overall length of the bogie; and the bogie has high compactness, so as to be suitable for light locomotives.