The Researches On Modification Of Tooth Surface Of End Face Harmonic Gear Drive Of Oscillating Teeth

The end face harmonious gear drive of oscillating teeth is a new type of drive, which contains the advantages of the common harmonic gear drive and the oscillating tooth. It radically solves the contradiction between the deformation and the carrying capacity of flexible gear. The carrying capacity is increased on the basis of preserving all merits of the common harmonic gear drive. According to the result of literature search, the theoretical researches of end face harmonic gear drive of oscillating teeth have not been founded.The theory of harmonic gear drive, oscillating teeth drive and the theory, method and thchnics of cylindrical gear are presented. The structure and the transmission theory of end face harmonic gear drive of oscillating teeth are introduced. The researches for the modification of end face harmonic gear drive of oscillating teeth have been done in the condition of analyzing the equations of teeth surface of all key components. The conclusions are drawed as follows:(1) The modification of the tooth surface must be done for decreasing the impact while oscillating teeth doing the axial reciprocating motion in the process of end face harmonic gear drive.(2) The modification theory and method are introduced in the condition of preserving the motion state of the end face harmonic gear drive of oscillating teeth. It not only decreases the impact while oscillating teeth doing the axial reciprocating motion, but also is convenient for design and manufacture.(3) The modification principle of tooth surface is deduced, and it draws the conclusion that the modificative tooth depth of wave producer, end face gear and oscillating teeth have certain relation.(4) The modification of oscillating teeth for the multi-teeth drive of end face harmonic gear drive of oscillating teeth is discussed, and several measures are introduced.(5) The equations of teeth surface after modification of all key components, such as wave producer, oscillating teeth, end face gear, are deduced.Furthermore, the posterior dominating researches on end face harmonic gear drive of oscillating teeth are discussed. It is helpful for the basically theoretical researches and the design of end face harmonic gear drive of oscillating teeth. And it has a definite application expectation and economic value.