B0 bogie for power-centralized D-series high-speed train

Abstract

The invention discloses a B0 bogie for a power-centralized D-series high-speed train. The B0 bogie comprises an 8-shaped framework, a wheel set and a single traction bar, wherein a framework tractionbase is arranged on a framework end beam, one end of the single traction bar is connected to the framework traction base through a first traction base, and the other end of the single traction bar isconnected to a train body chassis through a second traction base; the height of the end, connected with the framework traction base, of the single traction bar is lower than that of the end, connectedwith the train body chassis, of the single traction bar. By means of the B0 bogie for the power-centralized D-series high-speed train, a middle-arranged low-level slant single-pull-rod traction structure is adopted to achieve low-level traction of a small-wheel-diameter bogie, the adhesion utilization rate is greatly increased, and the axial weight transfer is reduced; meanwhile, through the optimization of position relations of parts on the bogie, the D-series high-speed train has excellent comfort, stationarity and safety. The speed level of an existing line of 160 km/h is satisfied, and the requirements for the safety, stationarity, and low wheeltrack motion acting force when a passenger railway line is running at the speed level of 200 km/h are also met.

Description

technical field [0001] The invention belongs to the technology of rail transportation, and in particular relates to a B0 bogie for a concentrated power EMU. Background technique [0002] At present, CRH1, CRH2, CRH5, and CRH3 high-speed rail power decentralized EMU lineages have basically been formed through the introduction, digestion and absorption of the past few years in China, and the speed levels basically cover 200km / h to 350km / h. [0003] In order to complete the comprehensive coverage of products to locomotives, urban rails, and EMUs, and meet the needs of high-speed railway development at home and abroad. On the basis of the currently developed 160km / h power concentrated EMU, the maximum operating speed is 200km / h, and the B0 bogie with small wheel diameter is used in strict accordance with the provisional regulations of the domestic standard EMU. [0004] The original power centralized EMU mainly has the following defects: [0005] 1. The traction device adopts ...

AI Technical Summary

Problems solved by technology

[0005] 1. The traction device adopts a horizontal traction rod structure, and its nominal traction point height reaches 380mm, the adhesion utilization rate is low, the axle load transfer is large, and the dynamic performance is poor

[0006] 2. It cannot meet the requirements of 160km / h speed level of the existing line and 200km / h speed level of the passenger dedicated line for operation safety, stability, and low wheel-rail action force requirements

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