Error Modeling and Control of Swing Roller Movable Teeth Transmission Considering Machining Error

doi:10.3901/JME.260413

Abstract

Abstract: Aiming at the problem of ambiguous mapping relationship between movable teeth transmission error and machining errors of transmission components. Taking swing roller movable teeth as the research object, and the geometric error vector representation model of the transmission components based on the equivalent mechanism of the swing roller movable teeth transmission is established. What’s more, the error transmission path is explored, and the transmission error model of multi-tooth parallel system is constructed considering the coordination relationship of multi-tooth parallel system. By means of time-frequency domain analysis, the time-frequency domain characteristics of the swing roller movable teeth transmission error under the effect of machining errors of wave generator, ring gear and separator are clear, as well as the combined effect of these errors. On this basis, the transmission error control schemes are developed. Then, a test platform for transmission error of swing roller movable teeth transmission is built to compare the error control effect of swing roller movable teeth prototype. The results show that transmission error peaks of the control schemes based on the influence degree of individual error factors and error interaction are controlled at the IT6 level of precision, which is 37.7% and 35.2% lower than IT7 level of precision, respectively. The transmission error peak value and fluctuation amplitude of the error control prototype based on the interaction influence degree of error are significantly lower than the same precision prototype based on IT7-level machining accuracy, which verifies the effectiveness of the transmission error model and error control method, and achieves an effective balance between transmission accuracy and machining cost.

Key words: transmission error, swing roller movable teeth, error control, multi-tooth meshing, time-frequency domain analysis

CLC Number:

TH132

CHEN Meiyu, YI Yali, WEI Rui, YANG Zeyu, CHEN Tao, JIN Herong. Error Modeling and Control of Swing Roller Movable Teeth Transmission Considering Machining Error[J]. Journal of Mechanical Engineering, 2026, 62(9): 155-171.

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