Analysis And Resea Rch On The Direct Drive Bogie

Direct drive to the analysis and the research frame is a frontier issue of modern railvehicle field. With the development of China’s rapid economic development and science and technology, to track vehicles in operation reliability, operating cost,energy saving and environmental protection, have put forward higherrequirements. Direct driving bogie in these areas with traditional bogieincomparable advantage, therefore to accelerate the drive of our own direct to thcresearch and development of advanced application frame, in order to improve thecity rail transit vehicle in China’s overall strength of science and technology,reduced with the foreign advanced countries, advanced technology the gap, thedevelopment orbit of our country city and city of adaptation.In this paper, based on studying the domestic and foreign city track trafficdevelopment, reference to domestic and foreign direct drive the latest achievements of bogie, in Germany Siemens developed Syntegra type bogie is an important reference target, according to the German-Siemens public Syntegrabogie design specific data, plus our own Syntegra model bogie is inverse derived data, it analyzes each specific size and data, and the reference to China’s Beijing,Shanghai and Guangzhou and other city advanced rail vehicle on the basis of a bogie design dimensions and technical parameters, and through these bogie foundin the use of specific issues in the process of and solutions, technical parametersand application in writing practice, after thinking and calculated carefully, we designthe direct driving bogie general reference data, and these data preliminarily established a dynamic simulation model for vehicle, and in future studies onspecific data size was gradually plan adjustment.The direct drive to direct drive device frame are analyzed detailed selection,specifically regarding the operation speed is not high city rail transit vehicles,should choose permanent magnet synchronous motor shaft rigidity of direct drive for suspension, and a qualitative analysis of the natural braking characteristics of permanent magnetic synchronous motor with built-in resistor braking. In addition to a special analysis of the direct drive bogie axle load transfer phenomenon, the analysis results show that the adhesive weight directly driven bogie railcarutilization rate than the traditional coaxial distance train.This first of the direct drive to the development and Prospect of frame are studied in detail, and the analysis and comparison of a lot of, the direct drive to direct drivedevice selection frame, or permanent magnet synchronous AC motor. After the bogie other important components analysis, comparison, such as direct drivingbogie frame, suspension, two suspension, brake and wheel and bearing. And in thefoundation of dynamic assessment strictly abide by the system of city rail vehicle, adynamic model of steering rack driven directly by using simulation software SIMPACK, the kinetic data and the calculated, and validate our calculations of dataand the changes in ts basis, the most mportant is the key component of the steering bearing frame of life calculation and selection.In reference to foreign direct driving bogie structural basis, according to the results of analysis and calculation and dynamic, gives a direct drive to the structure size frame. To turn to the main structure, such as a frame, a suspension system,suspension system, motor wheel unit of3D structure design in detail, finally got thedirect drive to the overall3D structure.Based on the analysis of direct drive steering mechanism frame starting, the mechanism analysis and structure design together, by mechanism analysis results to guide the structural design, the final3D design method to get the detailed bogie structure assembly drawing, this process has an important guiding significance forthe research and development of new products for.