Method for remanufacturing large-sized skew bevel gears using CNC machining center

Kawasaki, Kazumasa; Tsuji, Isamu; Gunbara, Hiroshi; Houjoh, Haruo

doi:10.1016/j.mechmachtheory.2015.05.013

Cited by 27 publications

(16 citation statements)

References 15 publications

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“…2 in order to analyze the tooth contact pattern and transmission errors of worm gear set. The analysis method is the same as that in the case of other kinds of gears (Tsuji et al, 2013;Kawasaki et al, 2015). That is, the position vector of the tooth surfaces of the worm and worm wheel must coincide and the direction of two unit surface normals at these positions must also coincide in order to contact two surfaces.…”

Section: Tooth Contact Analysismentioning

confidence: 99%

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Hamada¹,

Kawasaki

Tsuji³

2018

JAMDSM

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In this paper, the tooth contact pattern and transmission errors of dual lead worm gears in ISO type I are analyzed using tooth contact analysis (TCA) and the worm gears are manufactured. The setting of the hobbing machine for worm wheel manufacturing and the amounts of modification in profile and lead directions of worm grinding machine for worm manufacturing are determined so that the expected meshing conditions can be obtained based on TCA results. The dual lead worm gears in ISO type I were designed and manufactured based on this method, and the actual tooth contact patterns and transmission errors were compared with analyzed ones. Compering with TCA results, actual tooth contact patters were similar to TCA results for both flanks. However, the measured transmission errors were slightly larger than TCA results. After manufacturing worm gears, the profile errors of a worm hob cutter for tool were measured using a gear measuring machine and these measured results were fed back to TCA results in order to improve the accuracy of TCA. The influence of the tooth profile errors of the hob cutter was investigated. TCA results with feedback of tooth profile errors of the hob cutter were closer to the actual transmission errors than TCA results without feedback. As a result, the validity of this method was confirmed.

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Section: Tooth Contact Analysismentioning

confidence: 99%

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Hamada¹,

Kawasaki

Tsuji³

2018

JAMDSM

Self Cite

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“…Because of the limited lebgth of this presentation, only small part of the corresponding publications can be referenced [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Simon Vilmos Budapest University Of Technology and Economicsmentioning

confidence: 99%

Advanced Design and Manufacture of Spiral Bevel Hypoid and Worm Gears

Simon¹

2017

Fifth International Conference on Advances in Mechanical and Robotics Engineering - AMRE 2017

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Abstract-A method is presented for the optimization of design and manufacture of spiral bevel, hypoid, and worm gears. The aim of the optimization is to improve the operating characteristics of the gear pair, namely, to increase the service life of gears and to reduce the dynamic effects of gear mesh. Optimal modifications are introduced into the tooth surfaces to simultaneously reduce the maximum tooth contact pressure and transmission errors. These modifications are introduced by applying optimal machine tool settings and geometry of cutting tool in the manufacturing process. The method is demonstrated on spiral bevel, hypoid, and worm gears. The obtained results have shown that significant improvements in the operating characteristics of the gear pairs are achieved.

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“…Yang et al [7] proposed a pinion development approach in order to obtain excellent transmission performance of the face-milled spiral bevel and hypoid gears. Kawasaki et al [8] proposed a method for remanufacturing pinion member of large-sized skew bevel gears using a CNC machining center and respecting an existing gear member. The gear geometry and kinematics of space curve meshing were investigated and the mathematical model of conicalhelix bevel gears from the idea of logarithmic spiral bevel gears was proposed [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Geometry Design Parameters on the Static Strength and Dynamics for Spiral Bevel Gear

Zhao

Song

2017

International Journal of Rotating Machinery

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Considering the geometry design parameters, a quasi-static mesh model of spiral bevel gears was established and the mesh characteristics were computed. Considering the time-varying effects of mesh points, mesh force, line-of-action vector, mesh stiffness, transmission error, friction force direction, and friction coefficient, a nonlinear lumped parameter dynamic model was developed for the spiral bevel gear pair. Based on the mesh model and the nonlinear dynamic model, the effects of main geometry parameters on the contact and bending strength were analyzed. Also, the effects on the dynamic mesh force and dynamic transmission error were investigated. Results show that higher value for the pressure angle, root fillet radius, and the ratio of tooth thickness tend to improve the contact and bending strength and to reduce the risk of tooth fracture. Improved gears have a better vibration performance in the targeted frequency range. Finally, bench tests for both types of spiral bevel gears were performed. Results show that the main failure mode is the tooth fracture and the life was increased a lot for the spiral bevel gears with improved geometry parameters compared to the original design.

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Method for remanufacturing large-sized skew bevel gears using CNC machining center

Cited by 27 publications

References 15 publications

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Advanced Design and Manufacture of Spiral Bevel Hypoid and Worm Gears

Effects of Geometry Design Parameters on the Static Strength and Dynamics for Spiral Bevel Gear

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