Multi-variation Design Of Dual Phase Hy-Vo Silent Chain System

As one kind of transmission ways used widely,Hy-Vo silent chain transmission has many advantages,such as,smooth transmission,low noise,high wear resistance,etc.Compared to the single phase Hy-Vo silent chain,the dual phase Hy-Vo silent chain drives better and can reduce the fluctuations and vibration noise of the Hy-Vo silent chain transmission system.Based on National Natural Science Foundation of China(the multi-variation and meshing mechanism research of dual phase Hy-Vo silent chain transmission system)and Science and Technology Development Project of Jilin Province(the key technology research of multi-phase Hy-Vo silent chain transmission system),the multi-variation forms of dual phase Hy-Vo silent chain are analyzed,and the multi-variation character and design method of dual phase Hy-Vo silent chain are researched.Based on the theory of transmission that the Hy-Vo silent chain meshes with the sprocket,the meshing design system of the dual phase Hy-Vo silent chain link-sprocket-tool and the dynamics model of the dual phase Hy-Vo silent chain transmission system based on heart-shaped hole are built in the paper.The main design parameters of chain link,benchmark apothem and positioning offset angle,are designed and the harmonic relationship between them and the transmission system fluctuations is analyzed.The simulation analysis results show that the fluctuations of the dual phase transmission system are less than those of the single phase transmission system obviously no matter how the benchmark apothem and the positioning offset angle vary.Compared to the single phase transmission system,the link angular velocity fluctuation of the dual phase transmission system is smaller,the frequency is lower and the instantaneous transmission ratio is more accurate.In addition,the optimal value of the dual phase Hy-Vo silent chain system is not the simple superposition of two optimal parameters of the single phase Hy-Vo silent chain system but the optimal value of the interaction between each other.The research results will provide the support for parameter optimization of dual phase Hy-Vo silent chain,and also provide some scientific basis for multi-variation coupling effect of the dual phase Hy-Vo silent chain system.A new kind of Hy-Vo silent chain based on rhombus hole is presented,and the rhombus hole and the pin's shape of the link are defined and calculated.The parameters of link,sprocket,rhombus hole and pin of dual phase Hy-Vo silent chain based on rhombus hole are designed and calculated.Through building the dynamic simulation model of dual phase Hy-Vo silent chain transmission system based on rhombus hole,the trajectory of the transmission system,the silent chain's fluctuations,the link angular velocity,the instantaneous transmission ratio and the link tension are analyzed.The simulation results show that the dual phase Hy-Vo silent chain transmission system based on rhombus role runs smoothly,and the transmission performance of the dual phase Hy-Vo silent chain based on rhombus role is better than that of the single-phase Hy-Vo silent chain,which further proves the design method is feasible.Because the dual phase Hy-Vo silent chain based on rhombus role has the characteristic of positioning stably,high wear resistance and easy lubrication,the research result will provide theoretical basis for the further research and product exploitation of the dual phase Hy-Vo silent chain transmission system based on rhombus hole.In conclusion,the design method of the multi-variation of dual phase Hy-Vo silent chain system in the paper is one kind of innovations for the optimization design of dual phase Hy-Vo silent chain.Besides,the feasibility and important practical significance of researching the dual phase Hy-Vo silent chain are further testified.