Abstract
A Harmonic drive is a core component of industrial robot joints, which can greatly affect rotation accuracy and reliability. The Twice conjugated meshing (TCM) has an important influence on improving the coincidence and meshing performance of the harmonic gear transmission with double-circular-arc Common-tangent tooth profile (DCTP). A parametric design method of DCTP which can obtain continues TCM is proposed effectively. Based on the envelope theory and the deformation of flex spline (FS), the expression of the conjugate tooth profile (CTP) of the circular spline (CS) is derived. By analyzing the influence of FS parameters on CTP, the geometric relationship of CTP under TCM is found. The HD design with TCM is realized by adjusting the tooth profile parameters of FS. The calculation of error and backlash shows that the tooth profile meshes well, the backlash distribution is reasonable and verifies the geometrical property of the TCTP. The number of meshing teeth has been guaranteed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
