Novel high-speed motor train unit power bogie

Abstract

The invention relates to a novel high-speed motor train unit power bogie. The novel high-speed motor train unit power bogie is characterized in that crossbeams and side beams respectively adopt a box-type structure formed by welding steel plates, a main body consists of two side beams and a crossbeam, the side beams and the crossbeam are respectively formed by welding steel plates, the side beams and the crossbeam are respectively provided with various functional seat, the crossbeam and the side beams are connected in a plugging manner, an upper cover plate and a lower cover plate of each side beam respectively extend inwards, a side vertical plate of the crossbeam is directly inserted into an extension position of the upper cover plate and the lower cover plate of the side beam to be directly connected with the inner vertical plate of the side beam, the lower cover plates of the crossbeam and each side beam are directly connected in a welding manner, and the upper cover plates of the crossbeam and each side beam are elastically connected with each other; a motor is suspended in a supporting manner on four points, and the motor is elastically connected with a bogie framework; an oil pressure damper is arranged between the motor and the framework, and a transverse stop bar is arranged between the motor and the framework. The bogie is simple in structure; the motor suspension frame is not needed, so that the structure is greatly simplified, the application, maintenance and repairing are facilitated, modularized and uniform design of parts can be realized, and the product applicability can be improved.

Description

technical field [0001] The invention relates to a rail vehicle power bogie, in particular to a lightweight new high-speed standard EMU power bogie with high parts interchangeability, convenient operation and maintenance, and meeting performance requirements. Background technique [0002] With the development of high-speed railways, the types of vehicles are increasing day by day, the operation and maintenance management is difficult, and the maintenance cost is relatively high. And bogie dynamic performance and vehicle modal matching all put forward higher requirements, and at the same time have a great impact on vehicle dynamic performance. Therefore, there is an urgent need to develop a lightweight new high-speed standard EMU power bogie with high parts interchangeability, convenient operation and maintenance to meet the performance requirements. [0003] The existing high-speed EMU power bogie usually includes a welded H-shaped frame, and two wheel-to-axlebox...

AI Technical Summary

Problems solved by technology

In order to achieve elastic suspension, the existing EMU adopts a transitional motor hanger structure to solve this problem. This structure will lead to a more complicated overall structure of the bogie. At the same time, it is difficult to ensure the fatigue strength of the motor hanger, which is prone to insufficient strength. Poor workmanship and high cost

In summary, the overall structure of the bogie is complex, and the space occupied by the external installation and load-bearing parts is relatively large, which is not conducive to the lightweight design of the bogie itself and the improvement of vehicle speed.

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