Tooth contact analysis with latent error of double circular-arc spiral bevel gears for industrial robot joint nutation drive

Zheng, Lin; Yao, Ligang; Zhang, Jun; Su, Tongke; Chen, Kunjing

doi:10.1007/s40430-019-2085-0

Cited by 8 publications

(5 citation statements)

References 15 publications

(19 reference statements)

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“…He et al [11] obtained the accurate initial value of MPA by identifying the initial contact point on the gear and the pinion. Lin et al [12] established the flank contact trajectory equation according to the meshing equation and coordinate transformation. These studies obtain the FCA based on the traditional or optimized methods.…”

Section: Introductionmentioning

confidence: 99%

An analytical method for the meshing performance of deviation surface of spiral bevel gear based on a one-dimensional probe

Li,

Dai,

Zhang

et al. 2023

Meas. Sci. Technol.

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The meshing performance is a significant indicator for evaluating the machining quality of spiral bevel gear. The flank contact accuracy (FCA) and flank geometric accuracy (FGA) are important aspects of meshing performance, and both are indispensable. In the actual production process, due to the lack of professional meshing performance analysis (MPA) software, the flank geometric structure cannot be reflected based on the FCA, and the actual meshing state cannot be reflected by the FGA, which cannot meet the manufacturing requirements of high-quality gear. Therefore, a MPA method for deviation surface of spiral bevel gear is proposed based on the gear measuring center (GMC) using a one-dimensional probe. By constructing the deviation surface, the flank meshing model is established, and the meshing parameters are determined. Aiming at the complexity of solving the meshing model, a method for decreasing the dimension of the meshing equations is proposed by establishing the mathematical relationship between the rotation angle and the normal vector, which improves the solution accuracy of the meshing point. The intersection points of the adjacent transmission error curves are taken as the meshing in and out points, and then the actual position of the contact pattern is accurately determined. The instantaneous contact ellipse is obtained by using the method of a cylindrical surface intercepting the deviation surfaces, which not only simplifies the solution algorithm, but also obtains the contact pattern more in line with the actual situation. Finally, the transmission error and contact pattern are digitally characterized. The experimental results show that the digital and actual patterns have good consistency. Flank geometry and gear meshing are organically linked based on the proposed method, and the actual meshing state can be predicted according to the flank topology deviation, which provides important theoretical support for the improvement of the machining quality and meshing performance of the spiral bevel gear.

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Section: Introductionmentioning

confidence: 99%

An analytical method for the meshing performance of deviation surface of spiral bevel gear based on a one-dimensional probe

Li,

Dai,

Zhang

et al. 2023

Meas. Sci. Technol.

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show abstract

“…Researchers usually use two methods to study the relationship between vibration and structures [2]. The first is to simulate the vibration of industrial robots through a dynamic model [3], and the other is an experimental method. Researchers have created a series of research methods for robot vibration tests [4].…”

Section: Introductionmentioning

confidence: 99%

Vibration Diagnosis and Optimization of Industrial Robot Based on TPA and EMD Methods

Xie¹,

Cheng²,

Li³

2023

Computer Modeling in Engineering &Amp; Sciences

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This paper proposed method that combined transmission path analysis (TPA) and empirical mode decomposition (EMD) envelope analysis to solve the vibration problem of an industrial robot. Firstly, the deconvolution filter timedomain TPA method is proposed to trace the source along with the time variation. Secondly, the TPA method positioned the main source of robotic vibration under typically different working conditions. Thirdly, independent vibration testing of the Rotate Vector (RV) reducer is conducted under different loads and speeds, which are key components of an industrial robot. The method of EMD and Hilbert envelope was used to extract the fault feature of the RV reducer. Finally, the structural problems of the RV reducer were summarized. The vibration performance of industrial robots was improved through the RV reducer optimization. From the whole industrial robot to the local RV Reducer and then to the internal microstructure of the reducer, the source of defect information is traced accurately. Experimental results showed that the TPA and EMD hybrid methods were more accurate and efficient than traditional time-frequency analysis methods to solve industrial robot vibration problems.

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“…e existing achievements in scientific research mainly focus on the study of the dynamic performance of the gear transmission system, with the known basic parameters and the gear surface appearances [1][2][3][4][5][6][7][8]. Nevertheless, the research on the dynamic performance of the gear transmission system is less in response to the situation that the gear surface appearance is unknown.…”

Section: Introductionmentioning

confidence: 99%

Research on the Method of Prediction for Fuzzy Tooth Surface of Involute Gear

Liu

2022

Mathematical Problems in Engineering

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Surface appearance of involute gear is the basis to research the dynamic performance of gear transmission system. The Delaunay triangulation method of layered local dynamic is proposed to construct the precise tooth surface of the known tooth surface appearances. The concave and convex region of the real tooth surface was extracted by isosurface subdivision. In order to smooth the surface, the energy method and the improved fractal method with minimum included angle are used to smooth the curve. On the basis of the loaded tooth contact analysis of involute gears, the loaded tooth contact analysis model of digital error tooth surface is constructed. The tooth surface appearances of fuzzy tooth surface were predicted by extracting contact patterns under various working parameters on the experimental platform. Through the analysis on actual examples, it is concluded that the method proposed in this manuscript can accurately predict the tooth surface morphology of fuzzy tooth surface and lay the foundation for the dynamic performance optimization of gear system with fuzzy tooth surface.

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Tooth contact analysis with latent error of double circular-arc spiral bevel gears for industrial robot joint nutation drive

Cited by 8 publications

References 15 publications

An analytical method for the meshing performance of deviation surface of spiral bevel gear based on a one-dimensional probe

An analytical method for the meshing performance of deviation surface of spiral bevel gear based on a one-dimensional probe

Vibration Diagnosis and Optimization of Industrial Robot Based on TPA and EMD Methods

Research on the Method of Prediction for Fuzzy Tooth Surface of Involute Gear

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