| The development of non-circular gear has been a long history, this technology is created by a German scholar.Poles make good use of non-circular gears and their respective strengths to form a non-circular gear circular planetary gear mechanism,and apply it to the motor. Research paper produced for 4-6 hydraulic motor main body non-circular planetary gear train mechanism, the establishment of a non-circular gear planetary gear train and the characteristics of its three-dimensional model of kinematics, statics, dynamics, etc. carry out research.Firstly, introduce the history sources of the subject and domestic and foreign development, discuss the purpose and significance of the research, explain the status of non-circular gears and hydraulic motors content of this paper and introduce the virtual prototype features.Secondly, the paper quoted the basic theory of non-circular gear transmission and tooth profile meshing law, analysis non-circular involute spur gear pitch curve equation and identified non-circular planetary gear joggle tooth profile equation based on the principles of engagement profile equation, engaging relationship between the angle and the corner,establish relations section curve equation and the mathematical model of the train wheels and the inner ring of the sun gear, using three-dimensional software design non-circular planetary gear mechanism model and analyzes its structure, and discuss the ratio between the drive teeth relationship between function and the angle between the rotation angle and pressure as well as active angle between the discussed method for solving tooth modulus.Finally, a virtual prototype model is established, the kinematics and dynamics feature is analysised, and the characteristics of the input torque, output torque during movement were studied.using elastic mechanics parameters in the model set to give the kinematics and dynamics of the institution to obtain the velocity of the sun gear and the planetary gear and acceleration graphs, establishing a non-circular planetary gear train static and dynamic models based on the analysis and theoretical analysis, the non- circular planetary gear mechanism conduct static analysis, modal analysis and transient kinetic analysis to obtain the stress distribution of non-circular planetary gear train of each gear tooth and natural frequencies and mode shapes of teeth during engagement surface and The total deformation maps. The results can be used to effectively determine which parts of the teeth is the most serious injury, in order to achieve the purpose of preventing the failure of the gear mechanism, whether the system is working smoothly may also be obtained by analyzing the results. |
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