Design Of Intelligent Machine With Load And Unload Bushing In Frame Of Train

In order to be insured the safety of driving of train , the nation has prescribed that the frame of the train must be repaired completely every four years. When being repaired the old resist grind bushings must be exchanged to new ones. Because there is a relation of the tight fitting between the resist grind bushing and suspension yoke, and the suspension yokes distribute many corner in the frame, which make against to work by machine. Now there are not special device to preferably finishing load and unload of resist grind bushing o The tradition method not only may kill great work and low work efficiency but also may cause accident hidden trouble.By analyzing the suspension yokes' distributing characteristic in the train frame of 206 and 209 type the peculiarity between the resist grind bushings and the suspension yokes and restriction condition of device during the process of assemble, it puts forward a different project from tradition's. Furthermore, it designs an intelligent Machine with loading and unloading Bushing. This machine has not only eliminate the tradition method's shortcoming lightening the workers" labor intensity and enhancing work efficiency, but also gives different alarm by the disqualification such as over loose or over lighted. It has made up the blank in aspect in our nation.The main work of this article: firstly, bring forward the basic structure of machine with loading and unloading bushing; secondly, use 3D parameter design software Pro/Engineer 2001 to realize entity-modeling of machine with loading and unloading bushing. It uses the great software FEA ANSYS, analyzing the strength and mesh according to the main part of component, making sure of the main push axis and C-type clamp should have enough intension during the process of working; thirdly, by using the OPT technology of ANSYS 8.0, it realizes optimization on its structure and realize the minimize quality of C-type clamp under some intensity and pressure. The quality of machine with loading and unloading bushing has been improved and the structure of which has beenturned rationalization; fourthly, According to the relation of the tight fitting between resist grind bushing and suspension yoke, making use of the two simple thick circles theory in the elastic-plastic mechanics and the fourth strength theory, it integrated theory with it's formulation characteristic and developed the solver of the tight fitting force in the system of C++ Builder .It could realize the solve of all tight fit force and save up the frame's size and the tight fitting's data in database in order to use in the future ?The assemble force of tight fitting can be used as the rule of estimating loose or tight bushing in theory. Actually, we only input the type of the frame and the size of the resist grind bushing in operation; we can immediately find the counterpart data of the assemble force - the maximum and the minimum. The system will can availably give a relevant alarm about the force of the assemble process in time according to the maximum and the minimum. It can realize intelligence during the process of loading and unloading bushing.