Power bogie with independent wheels for 100 percent low-floor light rail vehicles

Abstract

The invention discloses a power bogie with independent wheels for 100 percent low-floor light rail vehicles. The power bogie with the independent wheels comprises a framework, an axle mechanism, primary springs, secondary springs, secondary vertical and transverse dampers, a double-pull rod traction mechanism, the longitudinal driving mechanism of an elastically frame-suspended motor and a hydraulic brake unit, wherein the side beams of the framework are cantilevers which protrude outward; two short shafts are supported by bearing units and connected with elastic wheels respectively; an axle consists of the two short shafts; two wheels on the same side of the bogie are fixed on a motor-driven shaft; a motor is coupled with two gear boxes; a brake system is integrated with a traction motor; the four secondary vertical dampers are arranged at the four corners of the framework; the secondary transverse dampers are arranged at the two ends of the framework; and a parallel double-pull rod traction system is arranged on the inner side of the framework. The requirement of 100 percent low floor on vehicle bodies is really realized by the high-strength welded framework, the independent wheel axle mechanism, the primary springs and the secondary springs which are rationally structured, the optimal secondary vertical and transverse dampers, the parallel double-pull rod traction device with internal traction, the longitudinal drive of the elastically frame-suspended motor, and the hydraulic brake unit which is integrated with the traction motor.

Description

technical field [0001] The invention relates to a bogie, in particular to a 100% low-floor light rail vehicle independent wheel power bogie. Background technique [0002] The power bogie at both ends of 70% low-floor vehicles adopts the traditional form, the traction motor is placed inside the frame, and the beam is connected in the middle of the thicker part of the middle part of the side beam. Therefore, the upper body of the power bogie is a high-floor area. In this way, the two Step steps bring inconvenience to passengers. In order to make the floor height of the whole vehicle be the low floor area, measures must be taken to reduce the height of the high floor area. However, due to the restriction of traditional concepts, it is difficult for people to change the suspension position of the light rail vehicle motor and gear box, so 100% low-floor vehicles have not been realized. Contents of the invention [0003] The technical problem to be solved by the present invent...

AI Technical Summary

Problems solved by technology

[0002] The power bogie at both ends of 70% low-floor vehicles adopts the traditional form, the traction motor is placed inside the frame, and the beam is connected in the middle of the thicker part of the middle part of the side beam. Therefore, the upper body of the power bogie is a high-floor area. In this way, the two Step steps cause inconvenience to passengers

However, due to the constraints of traditional concepts, it is difficult for people to change the suspension position of the light rail vehicle motor and gearbox, so 100% low-floor vehicles have not been realized.

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