Bogie with internally-arranged axle boxes for broad-gauge subway vehicle

Abstract

The invention discloses a bogie with internally-arranged axle boxes for a broad-gauge subway vehicle. The internally-arranged axle box structures are adopted; first hanging devices adopt quasi-rotary-arm-type positioning, spiral steel spring sets and rotary arm positioning rubber joints are symmetrically arranged on the two sides of axle box bodies, and stiffness matching is conducted through therotary arm positioning rubber joints; second hanging devices comprise air springs, vertical vibration reducers, horizontal vibration reducers, side-rolling prevention torsion bars and the like, thus vibration and impact are reduced, and taking comfort is improved; basic braking devices comprise axle-mounted disc-type braking units and are arranged on the outer sides of wheels; a traction motor isfully suspended, and gear transmission is two-stage decelerating transmission; and adapters are mounted at the axle ends for providing mounting interfaces for speed sensors. The problem that a bogie cannot be provided with a current collector due to the 1676 mm wide gauge of an Indian subway and the excessively-small distance between a third rail and a running rail is solved; the torsion stiffnessof the bogie and the horizontal span of the first hanging devices on the left and right sides are reduced, and the curve negotiating property is improved; and the structure is compact, the function is complete, and safe operation of the vehicle can be ensured.

Description

technical field [0001] The invention belongs to the technical field of rail transit vehicles, and in particular relates to a bogie built into an axle box of a wide-gauge subway vehicle. Background technique [0002] At present, the gauge of subway vehicles at home and abroad is generally 1435mm standard gauge. After a long period of practical use, a relatively mature bogie structure has been formed. The existing bogies generally adopt the axle box external structure, and the axle box is arranged on the outside of the wheel. However, there are still some countries in the world that use wide gauge gauges, such as 1520mm, 1600mm, and 1676mm. [0003] The Indian subway has a wide gauge of 1676mm, and the third rail receives current. The inner distance of the wheel set is 1600mm, and the lateral distance between the center of the third rail and the center of the running rail is only 1490mm. The distance is too short, and the lateral layout space of the bogie is very compact. I...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a wide-gauge subway vehicle axle box built-in bogie, which can solve the problem that the bogie cannot be arranged due to the 1676mm wide gauge of the Indian subway and the short distance between the third rail and the running rail. It is compact in structure, complete in function and strong in carrying capacity, meeting the strength and dynamic performance requirements required for vehicle operation

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