Articulated type motor train unit power bogie

Abstract

The invention relates to an articulated type motor train unit power bogie which comprises a framework, a driving device, a wheel set and axle box device, a primary suspension device, a secondary suspension device, a foundation brake device and a traction device, wherein the framework is a welding framework in a shape like a Chinese character 'Mu' comprising two side beams, two cross beams and two end beams, a full suspension type driving device mounting device is arranged on the framework, the driving device comprises a traction motor, a gear box and a rubber coupler, the traction motor is in shaft connection with a small gear of the gear box by virtue of a diaphragm type coupling, a large gear of the gear box is connected with the rubber coupler by virtue of a hollow shaft, the rubber coupler is connected with the wheel set and axle box device, and the driving device is suspended on the framework by virtue of the driving device mounting device. The power bogie provided by the invention has the advantages of excellent mechanical properties and high traction brake adhesion availability and is stable and reliable in power transmission.

Description

technical field [0001] The invention belongs to the field of rail transportation, and in particular relates to a power bogie for an articulated train set. Background technique [0002] With the development of railway transportation, the types of rolling stock equipment are becoming more and more diversified. As we all know, according to international experience, high-speed EMUs (running speed ≥ 200km / h) are mainly used for intercity passenger transport on main lines, urban rail transit (running speed ≤ 120km) is mainly used for passenger transport in cities; commuter EMUs (running The speed is 130-180km / h), which is mainly used for passenger transportation in regional urban agglomerations. At present, my country's high-speed EMUs and urban rail transit are developing rapidly, and a high-speed rail network between cities and a multi-level rail transit network within cities have gradually formed. At the same time, a full range of transportation equipment has been developed. ...

AI Technical Summary

Problems solved by technology

If the articulated power bogie adopts the same structure, the unsprung mass of the bogie will be greatly increased, which will lead to the deterioration of the dynamic performance of the EMU, especially the doubled dynamic force of the wheel and rail, which will inevitably increase the damage of the wheel and rail during operation. , increase line and vehicle maintenance costs

At present, most quasi-high-speed locomotives and high-speed locomotives also adopt a wheel set hollow shaft structure in order to reduce the unsprung mass and improve dynamic performance, but the output coupling adopts a six-link structure, which is mainly composed of a rubber ball joint, a connecting rod , transmission plate, power transmission pin, inner hollow shaft, connecting rod two and outer hollow shaft, this structure is not only heavy and complex, but also requires high strength for the connecting rod mechanism

In addition, since multiple holes need to be processed on the wheel panel to install the connecting rod mechanism, higher requirements are placed on the strength of the wheel, and it is not conducive to the installation of the basic brake device.

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