The Research On Key Technology Of FF Mechanical Transmission On-line Test Bench

In the drive system of automobile, the transmission is one of the most important components in transferring engine power. Compared with other types of transmission, FF mechanical transmission still account for a large share of the market. Transmission assembly line whether can produce products with high quality, in addition to being related to the production process, it also depends on transmission on-line test bench located at the last station in the assembly line. But there is little special research on transmission on-line test bench at present. The equipment also had a lot of problems, such as the volume is too large, the high noise, the demand for manual operation on type switching etc. To counter these problems, the paper focused on key technology of the test bench based on a survey of a large number of documents and referring to the application results at home and abroad.Based on the analysis of transmission on-line test bench performance and disadvantages of existing equipments, the paper described the key technology points of the test bench and confirmed the whole project, then studied conveying system, optimization of motor layout, input shaft assembly, output shaft, hydraulic system. The fifth chapter analyzed dynamic performance of input spindle through finite element analysis software "ANSYS Workbench" and proved that the input spindle designed could meet the work requirement. Finally, a test bench prototype had been made according to the design process, and it had carried on test. The test data proved that the equipment could complete test tasks.Currently, the prototype has been put into use in assembly line and had passed inspection. Practical application verified the availability of the proposed scheme based on key technology and the equipment could meet the use requirements.