Structure Research And Kinematical Simulation About Machine With Load And Unload Bushing In Frame

For guaranteeing the safety that railroad train drive, all countries railroad is not all to adapt to the system of the servicing similarly, but is suitable for the state of every nation to establish the system of the servicing according to the railroad condition of all countries. Our nation has prescribed that the frame of the train must be repaired completely every four years. When being repaired the old wearable bushings must be exchanged to new ones. Although the machine being designed can resolve the problem about the load or unload bushing, its weight make against the worker's operation by hand and it can't expediently change the work position; in the same time, it need consume the worker's vast labor and the work efficiency is low.This article puts forward the solution of the assistant support with the machine and designs the structure by analyzing the process of the machine. It can lighten the worker's intensity, improve the working efficiency, meet the needs of flexible change of job position and also utilize space effectively.This thesis includes: designing the system of the assistant support -with the machine, based on the referring existing design and the request of the working environment; Using 3-dimensional plotting software UG (Unigraphics) to sculpt all parts of the assistant support; In the process of the design, some mechanisms are obtained according to experiential formulae, so the ultimate results need to be analyzed further. In this article, the turning arm is made finite element analysis by finite element analysis part of UG The analytic model is based on the relevant part of UG, and the arm has been simplified reasonably in preprocess. After material, load and boundary conditions being defined, the model's mesh is generated. Through finite element analysis, the results of deformation and stress can be obtained; at the same time the structure optimized and the results can be exported from the postprocessor. At last, using the motion module of UG to establish virtual prototyping model and do kinematical simulation. The results verify the rationality of this mechanism and provide the basis fortrial-manufacture of physical and the structure betterment.