The influence of the method of manufacturing a flexible wheel on the kinematic error of the wave gear

Over several decades, wave gears have been intensively used in engineering and instrumentation, providing high quality characteristics, that is, kinematic accuracy, backlash error, efficiency, torsional stiffness, etc. The process of cutting teeth on round work parts of flexible gears cannot provide adequate accuracy. Therefore, it is important to estimate the possibility of increasing the accuracy of flexible gears by changing the manufacturing technology of flexible wheel teeth. This paper analyses the influence of the flexible wheel manufacturing technique on the kinematic accuracy of the wave gear. Experimental studies of the kinematic accuracy are performed. The effect of manufacturing technique of the flexible wheel and manufacturing errors of wave gear elements on the kinematic accuracy of the wave gear is investigated. It is shown that the kinematic accuracy of the wave gear with flexible wheels cut in the deformed state is higher than that for the wave gear with wheels manufactured in the undeformed state. The results of the study will be useful for manufacturing high-precision kinematic gears.

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