High-speed train unit axle box built-in power bogie and rail vehicle with bogie

Abstract

The invention relates to a high-speed train unit axle box built-in power bogie, which is characterized in that the axle box and a truck side sill are both arranged in the inner sides of a wheel set, the axle box is positioned by using a horizontal pull rod, a single stage suspension uses two rubber conical springs which are longitudinally arranged and are positioned at the top of the axle box, a disc brake caliper in a brake device is positioned at the end part of the truck side sill, a central traction device adopts two longitudinally arranged laminated rubber stacks, and an anti-side rollingtorsion bar is positioned at the lower part of the truck side sill. According to the invention, the vertical bearing capacity of the single stage suspension is enhanced, and meanwhile, the transverseoccupied space of the springs is reduced; the quick replacement of the wheel set can be achieved; the space required by bolt connection is omitted; and the longitudinal rigidity of the rubber node isadjustable, so that the requirement of higher longitudinal positioning rigidity of the wheel set of the bogie of the high-speed train unit can be met. The bogie adopts a wheel-mounted brake disc to ensure that the axle box positioning pull rod can be horizontally arranged in the center of the axle box. Meanwhile, the fixed wheelbase size adjusting space is released, and a smaller fixed wheelbasecan be achieved on the premise of meeting the dynamic performance, so that the compact design of the bogie is further achieved.

Description

technical field

[0001] The invention relates to a rail vehicle power bogie, in particular to a power bogie built in an axle box of a high-speed EMU and a rail vehicle with the bogie. Background technique

[0002] At present, the bogies of existing high-speed EMUs in my country all adopt the traditional axle box external bogie, that is, the axle box is located on the outside of the wheel set, and the frame side beam is located on the outside of the wheel set. This kind of axle box external bogie has a large lateral dimension, and is suitable for use on high-speed rail lines with large vehicle limits. However, for some European countries (such as the United Kingdom), the railway has a history of more than 100 years. The old railway lines are complex and the vehicle limits are small. Therefore, for high-speed EMUs, these existing lines must meet a small limit. Require. Due to the limitation of the overall structure and layout of the bogie, there is no room to reduce the later...

Images