| At present,the design of the logarithmic curve loading structure is mainly based on the friction transmission.The design method mostly relies on the traditional experience method.The design process is not systematic enough and the design result can not achieve the best effect.In this paper,The design process of the system is given.On the bas is of the design,the planetary traction drive logarithmic curve loading device is designed.The device has the advantages of small volume,small size,compact structure,The invention has the advantages of high efficiency,low noise and long life of the traction drive,which solves the problem of no overload protection of the planetary gear transmission device and realizes the adaptive loading function,so the planetary traction drive logarithmic curve loading structure has Important research value and broad application prospects.An adaptive loading mechanism of logarithmic curve of planetary traction drive is designed,the sun wheel made of hollow elastic sleeve and input shaft through the three logarithmic surface connection,through the wedge of the logarithmic profile,the torque of the input shaft can be transformed into the expansion deformation of the solar wheel sleeve,the normal contact stress between the sun wheel and the planet wheel is produced,thus,the positive pressure required by the traction drive is obtained,and the adaptive load of the traction drive is realized.The radius of the sun wheel,the wheel width,the adhesion coefficient of friction,the logarithmic curve parameters and the transmission ratio are designed as the design variables,the volume is minimized,the output torque is the largest multi-target,the sun wheel,the contact strength of the planetary wheel as the constraint The optimization design model of MATLAB is used to solve the optimization parameters of design variables..Based on the optimized design parameters,the design parameters of the planetary traction drive logarithmic curve loading device are completed,which includes the selection and application of the input shaft,output shaft,sun wheel material and bearing model.CAXA software draws two-dimensional engineering drawings.The three-dimensional solid model of the whole device is established by using PROE,and the finite element analysis software ANSYS is used to analyze the important structural components of the device,and the structure of the device is further optimized to make the design more reasonable. |
