Dynamic And Experimental Investigation Of Inner Displaced Indexing Cam Mechanism

Inner displaced indexing cam mechanism is a brand new type of intermittent mechanism, which always has several advantages, such as simple structure, smaller volume, much indexing number and high load-capacity. It might be widely used in the future.Based on the presentation of the transmission principle of the new mechanism, the design parameters are confirmed, and the design flow chart is proposed. Some research has been done on the meshing number of the cam and pin. Dynamic equation considering elastic of the components was established,the influence on the first-order natural frequency by the main parameters is distributed. At last a prototype and related experiment are also performed.Firstly, the transmission principle of the new mechanism is introduced, and draws the conclusion that the shaking force can be balanced theoretically.Secondly, the thesis concentrates on the basic design flow and design method, gives the method on how to select the components of the mechanism and processes the intensity design on the condition that the force of the cam-pin meshing pair has been already obtained.Thirdly, the ten degree of freedom dynamic equations are established, the output shaft response was derived by using close-algorithm. Reasons which result in the low first order natural frequency was given, then shows the way on how to improve the situation, at last a group of optimal parameters are put forward.Finally, the design and manufacturing of a prototype is performed. The performance of the prototype indicates that the mechanism is feasible. Measurements and analysis of the vibration and noise are conducted by using TST5912.