Bogie frame with built-in axle box for wide-gauge subway vehicles

Abstract

The invention discloses a bogie framework with internally-arranged axle boxes for a broad-gauge subway vehicle. A framework main body is of an H-shaped structure and is arranged symmetrically; a frontcross beam and a rear cross beam are both seamless steel pipes and are perpendicularly connected with side beams through connecting seats and extend to the outer sides of the side beams to be of outer cantilever structures; the side beams are of box-type structures with the downwards-concave middles and are arranged on the inner sides of wheels, rotary arm positioning rubber joint mounting seats,first spring seats, first vertical vibration reducer seats, wheel pair hoisting seats, second horizontal vibration reducer seats, end mounting seats and horizontal stop seats are arranged on the sidebeams, braking pipe beams are mounted on the upper portions of the side beams in a front-rear symmetrical mode, and axle end adapter mounting seats are arranged at the outer ends of the braking pipebeams; traction pull rod seats are arranged on the front cross beam and the rear cross beam correspondingly, and air spring seats and steel cable mounting seats are arranged on outer cantilevers; andcurrent collector mounting seats and second vertical vibration reducer seats are arranged on the outer side faces of the air spring seats. The side beams are arranged on the inner sides of the wheels,so that the horizontal span of the two side beams is decreased, the overall stiffness of the framework is improved, the structure is compact, the function is complete, the bearing capability is high,and the strength of the formwork can meet the strength requirement of the vehicle with the maximum axle weight being 17 t.

Description

technical field [0001] The invention belongs to the technical field of rail transit vehicles, and in particular relates to a bogie frame 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 compa...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a wide-gauge subway vehicle axle box built-in bogie frame, which can solve the problem that the Indian subway has a wide gauge of 1676mm, and the distance between the third rail and the running rail is too close. The problem of arranging the current collector, and the structure is compact, the function is complete, the carrying capacity is strong, and the strength and dynamic performance requirements required by the vehicle are met.

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