Influence of tooth flank modification on tooth surface damage of conical involute gears

Morikawa, Kunihiko; Kumagai, Kouji; Nagahara, Mikio; Komori, Masaharu

doi:10.1299/transjsme.15-00311

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…Also, the influence of the tooth flank modification on the tooth surface damage was investigated. 9 Song et al. 10 and Zhu et al.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the influence of the tooth flank modification on the tooth surface damage was investigated. 9 Song et al 10 and Zhu et al 11 proposed a pitch cone based macro-geometry design procedure and investigated the effects of critical geometry parameters and torque load on the mesh and dynamic characteristics. Ni et al 12 proposed a numerical design approach with parabolic modifications to improve the mesh behaviors of crossed beveloid gear transmission and analyzed the sensitivity to misalignments.…”

Section: Introductionmentioning

confidence: 99%

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Concave modifications of tooth surfaces of beveloid gears with crossed axes

Liu

Song

Zhu

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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The mathematical models of the beveloid gear surfaces with different scenarios of combinations of profile concave modification and lead crowning are derived. Four schemes of modifications were proposed for beveloid gears with crossed axes. Tooth contact analysis is developed to study the influences of different schemes of concave modifications on the mesh behaviors including film thickness, transmission errors, contact ratio, root stresses, and contact patterns. Comparison of the contact characteristics of a beveloid gear drive with and without concave modifications is conducted. The results show that all the concave modification schemes can increase the area of contact patterns and decrease the maximum value of contact stresses, while the minimum film thickness can be increased. For the scheme i.e. the pinion with profile crowning modification and gear with profile concave modification, the contact ratio increases firstly then decreases to a relative lower value. Also, the root stresses are increased obviously. For the scheme for pinion without modification and gear with lead concave modification and the scheme for both pinion and gear with lead concave modification, the transmission errors are decreased slightly. The scheme for the pinion with combined crowning modification and gear with combined concave modification shows the largest improvement for the mesh behaviors in terms of the transmission errors and contact patterns where an almost contact condition can be found for the crossed beveloid gear pair.

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“…Also, the influence of the tooth flank modification on the tooth surface damage was investigated. 9 Song et al. 10 and Zhu et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Concave modifications of tooth surfaces of beveloid gears with crossed axes

Liu

Song

Zhu

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…For the micro-geometry design, Morikawa performed the mesh efficiency analysis considering the tooth surface modification for the spatial beveloid gearing used in FR-4WD transfer (Morikawa et al, 2014). Also the results from this group show that the crowning in profile direction and reverse crowning in tooth trace direction can improve the contact behaviors (Morikawa et al, 2015). Brecher presented an analytical-empiric method for the root carrying capacity and conducted the fatigue tests to evaluate the theoretical results (Brecher et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Tooth surface deviation and mesh analysis of beveloid gears with parallel axis considering machine tool adjustment errors

Yang

Song

Zhu

et al. 2018

JAMDSM

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The mathematical beveloid gear tooth surface model considering machine tool adjustment errors was derived. The definition and calculation process of tooth surface deviations along the tooth trace and profile directions for beveloid gear were proposed. Also, the solid model and the finite element mesh model of a paralleled beveloid gear pair were developed. Then, the effects of the machine tool adjustment errors including independent helix angle error, independent cone angle error and combined helix and cone angle errors on tooth surface deviation and contact characteristics were investigated. Results show that all the machine tool adjustment errors cause an incremental trend for the tooth profile and tooth trace deviations. And positive errors have the opposite impact on the surface deviation compared with the negative errors. The independent helix angle error has a stronger impact on the tooth surface deviations than the independent cone angle error and combined angle errors. Also, the tooth surface deviations caused by the independent helix angle error, independent cone angle error and combined angle errors have the similar magnitude level as the tooth surface modifications. All the independent helix angle error, independent cone angle error and combined angle errors tend to have deteriorative effects on the mesh characteristics, making edge contact worse, decreasing the contact area, increasing the contact pressure and the transmission error. The independent helix angle error has the strongest impact both on the contact pattern and transmission error, which is similar to the impact on the tooth surface deviations. However, the independent cone angle error shows less effects on the mesh characteristics. Thus the machine tool adjustment errors should be strictly controlled especially for the helix angle error during manufacturing.

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Continuous optimization method of micro geometry for unparallel beveloid gears

Cao,

Alessandro,

et al. 2024

Mechanism and Machine Theory

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Influence of tooth flank modification on tooth surface damage of conical involute gears

Cited by 3 publications

References 5 publications

Concave modifications of tooth surfaces of beveloid gears with crossed axes

Concave modifications of tooth surfaces of beveloid gears with crossed axes

Tooth surface deviation and mesh analysis of beveloid gears with parallel axis considering machine tool adjustment errors

Continuous optimization method of micro geometry for unparallel beveloid gears

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