The Optimization And Dynamics Simulation Of Small Planetary Fast Grinding Machine

Conventional design of planetary grinding machine is in accordance with the process of "Design—Trial—Experiment—Re-design", it means according to the different design options of every designer, make engineering draw appear, then chose the appropriate option and trial a physical prototype after a long period of demonstration based on experience. And then carry out many experiments and analysis, in order to improve the initial design. Then make a round of trail and experiments, determine the model and put it into production after modification. This method not only costs a lot of manpower, material, and extends the design cycle, and also some experiments will be associated with difficult because of many dangers. Furthermore, designers are unable to get the nature of the relationship between structure and performance. As a result, designers could not find the potential defects as soon as early.In this paper, the small planetary grinding machine express as the research object, the kinematical analysis, dynamic modeling, simulation and optimization have been studied by Virtual Prototyping Technology. And realize the parametric of the structure of this grinding machine. Then study the movement of internal materials, and get the parameters of structure which affect its performance. And then optimize, which is in order to improve the grinding quality, at the same time reduce the number of the trail and experiments. Final, shorten the design cycle, and achieve the serialization of design in planetary grinding machine.First, in this paper, review the development and present situation of the fields correlative with the Grinding Machine and the Virtual Prototyping Technology, indicate the target and values of the thesis, and state the chief research content of it. Then, the working principle and the characteristics of movement have been studied, and set up a dynamic model of the mill, have a kinetic analysis, and parameterize the structure of this grinding machine.Which follows, the critical equation of collision between the ball and container wall of the grinding machine has been deduced based on design parameters and the speed of the small planetary fast grinding machine, from the characteristics of the structure and the speed. A characterization model of analyzing the relationship among the grinding power of smash, grinding rate and structural parameters of the grinding machine has been established. Besides, dynamic simulation for the grinding machine is implemented. Then get the optimization model.The grinding object, in this paper, is the powder of ceramics. The value of the material's size is under 20. Mohs Hardness is under 7. According to the grinding object, the kinematical properties of the internal materials, for example, the diameter of the tube, and the volume of the internal material, and the motor speed, have been studied. After that, the impaction of these kinematical properties has been analyzed. Then get their ideal value.Finally, important conclusions were summarized, and more research assumptions brought forward.