Meshing theory of face worm gear drive with hardened cylindrical worm

Mu, Shibo; Zhao, Yaping; Cui, Jian; Meng, Qiaoling; Li, Gongfa

doi:10.1016/j.mechmachtheory.2023.105323

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…In this case, the helical face of Archimedes cylindrical worm is machined using a turning tool with a linear profile . However, the hardness of Archimedes cylindrical teeth tends to be low, leading to limited load carrying capacity (Mu et al, 2023). Consequently, this configuration typically employed in applications involving small loads, low speeds, or less critical tasks (Liu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Meshing performance investigations on oblique worm drive

YANG,

CHEN,

GAO

et al. 2024

JAMDSM

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This paper proposed an innovative approach to oblique worm drive by introducing a specific inclination angle. The investigation focused on the meshing performance of oblique ZA worm drive by varying the crossed axis angle. The meshing geometric models of oblique ZA worm drive are deduced, and the derivation of the lubrication angle along with the induced normal curvature calculation formula are proposed. The tooth-face contact conditions for different worm gears with various inclination angles are analyzed, and lubrication angles and induced normal curvatures are presented. To verify the numerical analysis, a simulation analysis was conducted for the oblique ZA worm drive with an inclination angle of 10°, and the results confirmed the conclusions drawn from the numerical analysis. A comparative test was performed between the transmission efficiency of the oblique and standard ZA worm drive reducer. The results demonstrated that the oblique ZA worm drive exhibited strengthened transmission efficiency and load carrying capacity.

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Section: Introductionmentioning

confidence: 99%

Meshing performance investigations on oblique worm drive

YANG,

CHEN,

GAO

et al. 2024

JAMDSM

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“…Recently, Zhao et al(2023) introduced a novel transmission that involves the meshing of a cylindrical worm enveloped by a cone surface with a face worm gear. Expanding on this transmission, a more profound understanding of the meshing theory at a specific reference point were achieved through further research, and a calculation method for determining the maximum allowable mounting distance of the worm in the axial direction is also provided.…”

Section: Introductionmentioning

confidence: 99%

Meshing performance investigations on face worm gear drive with the variable worm cone angle

XIAN,

CHEN,

GAO

et al. 2023

JAMDSM

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This article aims to reveal the meshing performance on face worm gear drive with the variable worm cone angle and to verify the feasibility of using a cylindrical worm as a replacement for the spiroid worm in face worm gear drive. The meshing functions and tooth surface equations are derived in the given coordinate system, as well as the meshing performance equations of induced normal curvature, lubrication angle, and relative entrainment velocity are presented. The influences of worm cone angle variation on the three metrics are analyzed under the design parameters, and it combined with simulation analysis to verify its correctness. The results of the analysis show that as the decreases of worm cone angle, the meshing characteristic between the tooth profiles on both sides of the transmission has an asymmetric feature. The magnitude of variation of the three metrics that assess the performance of meshing is not obvious, indicating that it is possible to replace the spiroid worm drive with a face worm gear with cylinder worm in some working conditions in the future.

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Curvature interference characteristic analysis of offset involute cylindrical worm drive

Yu,

Zhao,

et al. 2023

Math Methods in App Sciences

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The theory of calculating the curvature interference limit line of the offset involute cylindrical worm drive based on the singular point condition on the enveloping surface is established. The tooth surface equations and the meshing function of the worm drive are derived. Based on the singular point condition that the normal vector of the enveloping surface is zero, the equation of the curvature interference limit line is obtained. By employing the resultant elimination method and the geometric construction, the existence of the solutions of the curvature interference limit line is determined, and the reasonable initial values for the iteration program are afforded. The numerical outcomes show that there is one meaningful curvature interference limit line on each flank of single tooth of the worm gear, which usually does not enter the worm gear tooth surface. Both flanks of the worm gear are all settled in the side of the limit line, the curvature interference does not happen on the worm gear tooth surface. The undercutting of the cutting engagement process generally does not happen. The results also reveal that the curvature interference limit line is closer to the addendum and heel of the face worm gear on the i flank, which has the greatest potential venture inflict the undercutting.

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Meshing theory of face worm gear drive with hardened cylindrical worm

Cited by 6 publications

References 28 publications

Meshing performance investigations on oblique worm drive

Meshing performance investigations on oblique worm drive

Meshing performance investigations on face worm gear drive with the variable worm cone angle

Curvature interference characteristic analysis of offset involute cylindrical worm drive

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