Study on a novel backlash-adjustable worm drive via the involute helical beveloid gear meshing with dual-lead involute cylindrical worm

Ye, Xinxin; Chen, Yonghong; Lu, Binbin; Luo, Wei; Chen, Bingkui

doi:10.1016/j.mechmachtheory.2021.104466

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…With the rapid development of the industrial field, worm transmission is gradually developing towards the direction of heavy load, high speed, high precision, miniaturization, lightweight and high efficiency. Based on this idea, many scholars or experts have put forwarded or invented a lot of new worm drive forms [1][2], based on the thought of high efficiency, namely the high transmission efficiency, and the scholars put forward a series of movable tooth enveloping worm drive [3][4][5]. The sliding friction of conventional worm drive is changed into rolling friction by the rotation of the worm gear movable tooth itself to reduce the capacity loss of the sliding friction.…”

Section: Introductionmentioning

confidence: 99%

Thermal Elastohydrodynamic Lubrication Analysis for Rolling Cone Enveloping End Face Worm Drive

Geng¹,

Liu

2023

J. Phys.: Conf. Ser.

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To explore the thermal elastohydrodynamic lubrication performance of rolling cone enveloping end face worm drive, the mathematical model of thermal elastohydrodynamic lubrication is established based on the meshing theory of rolling cone enveloping end face worm drive and elastohydrodynamic lubrication theory. With the help of the numerical analysis software MATLAB, the thermal elastohydrodynamic lubrication performance under smooth conditions is selectively analyzed by the multigrid method. Besides, the effects of throat coefficient, cone apex radius and half cone angle of the rolling cone on thermal elastohydrodynamic lubrication performance are analyzed at the meshing out of the transmission pair. The results show that the thermal elastohydrodynamic lubrication film thickness at meshing out of the worm gear is the smallest; the oil film thickness, oil film pressure and oil film temperature are reduced from meshing in to meshing out. The oil film temperature at the interlayer is the largest. The oil film temperature at the end face worm surface is the smallest. The small half-cone angle of the cone apex radius and larger throat coefficient and cone apex radius may achieve better thermal elastohydrodynamic lubrication performance of rolling cone enveloping end face worm drive.

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Section: Introductionmentioning

confidence: 99%

Thermal Elastohydrodynamic Lubrication Analysis for Rolling Cone Enveloping End Face Worm Drive

Geng¹,

Liu

2023

J. Phys.: Conf. Ser.

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“…Yan et al [22] used the VTTIG as the transmission part of the 3K reducer. Zheng et al [23] and Ye et al [24] combined VTTIG with a doublelead involute cylindrical worm and proposed a new type of worm gear with adjustable backlash. However, the above-mentioned VTTG realizes the axial change of the tooth thickness by adopting different radial modification coefficients, which makes the tooth root circle and the addendum circle of each transverse different.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Research on Electrical Control Anti-backlash Based on a Novel Type of Variable Tooth Thickness Involute Gear Pair

Wang¹,

Zhu²,

Zou³

et al. 2022

sv-jme

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This paper presents an electrical backlash control method based on a novel variable tooth thickness involute gear pair (VTTIGP) through acceleration judgment. First, the principle, characteristics and theoretical tooth surface equation of the novel type of variable tooth thickness involute gear (VTTIG) are proposed. Compared with the traditional variable tooth thickness gear (VTTG), each transverse of the novel type of VTTIG has the same tooth root circle and the addendum circle. Therefore, there will be no interference caused by the excessive axial relative movement distance between the gear pairs when eliminating the backlash. The theoretical calculation equation of no-load transmission error (TE) and time-varying backlash for a dual-eccentric novel type of VTTIGP are deduced. Second, using the theoretical backlash equation and the eccentricities and the initial phases obtained through the experimental TE curve obtained with angular displacement sensors and the developed TE equation, the continuous backlash curve of the gear pair is obtained. Based on the RecurDyn software and its Colink control module, the co-simulation model of the novel type of VTTIGP and its backlash control system is used to explore the electrical backlash control method through acceleration judgment in the case of time-varying backlash. Finally, using angular displacement sensors and linear actuators, the experimental study on the anti-backlash control with different reversed positions under different input speeds is carried out, demonstrating that this novel electrical anti-backlash control method is effective.

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Geometric parameter design and contact characteristics of beveloid gear and involute cylindrical gear transmission with crossed axes

Ni,

Liu,

Song

et al. 2024

J Mech Sci Technol

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Study on a novel backlash-adjustable worm drive via the involute helical beveloid gear meshing with dual-lead involute cylindrical worm

Cited by 11 publications

References 22 publications

Thermal Elastohydrodynamic Lubrication Analysis for Rolling Cone Enveloping End Face Worm Drive

Thermal Elastohydrodynamic Lubrication Analysis for Rolling Cone Enveloping End Face Worm Drive

Simulation and Experimental Research on Electrical Control Anti-backlash Based on a Novel Type of Variable Tooth Thickness Involute Gear Pair

Geometric parameter design and contact characteristics of beveloid gear and involute cylindrical gear transmission with crossed axes

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