The Feasibility Study Of The High Speed Locomotive Bogie With Independent Brake Shaft Driving System

With the development of the high-speed dedicated passenger railway lines, the high-speed dedicated passenger railway lines become a part of the existing railway network is critical important for making itself work better and can improve our country’s transportation capacity. But the reality is there is no suitable railway vehicles can have a good performance in technical and economic indexes when it is used on both railway lines. In order to meet the market demand for cross line transportation, the paper puts forward the main parameters for the selection of vehicles aiming at the requirements of the passenger train that cross a line in all the lines moves and drawing up a bogie project based on these main parameters.The bogie project follows the cross line vehicles overall goals. A new designed driving system is used in the project. This driving system combines driving part with braking part. By calculating and dynamic simulation analysis, the bogie project and the independent brake shaft driving system is feasible.At the same time, axle load can reduce to17t by using the A-1-A axle arrangement.The independent brake shaft driving system is the key part of this bogie. The paper has analyzed and designed around the new structure driving system, such as brake gear transmission ratio, braking power, the structure and connection parameters of the independent brake shaft coupling. At last, the dynamic simulation analysis of independent brake shaft system assembling is given by dynamic software ADAMS. The conclusion gets from the analysis is reasonable matching to the rubber component parameters of the coupling can effective vibration damping. As a result, the independent brake shaft driving system has applied for a patent.Because of using the traditional locomotive traction mode and hollow shaft driving system, it can evidently reduce the life cycle cost. The independent brake shaft can install brake disk, so that makes it possible to reduce the wheel diameter as it no longer install brake disk. For this reason, it can make the mass under the department of the firs class spring minimum and further improves the bogie dynamic performance. In conclusion, the bogie project can fully satisfy the requirements on cross lines transportation both the economical indices and the technical performance.