کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5018821 1467716 2018 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research paperEffects of tooth modifications on mesh characteristics of crossed beveloid gear pair with small shaft angle
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Research paperEffects of tooth modifications on mesh characteristics of crossed beveloid gear pair with small shaft angle
چکیده انگلیسی


- A numerical design approach with tooth modifications of crossed beveloid gears was proposed.
- The mathematical model of beveloid tooth surface with transverse profile and flank line modifications was developed.
- The effects of tooth modifications on contact characteristics were investigated through performing tooth contact analysis.
- Compared to the large first principle direction angle, the mesh behaviors for small first principle direction angle are more sensitive to the tooth modifications.

A numerical design approach with tooth modifications to improve the mesh characteristics is presented for crossed beveloid gears. The mathematical model of the beveloid tooth surface with different modifications was developed. Considering the first principle direction (FPD) angle, the effects of tooth modifications on contact ellipse, contact path, transmission error, relative curvature were investigated by theoretical tooth contact analysis. For large FPD angle, independent helix crowning modification and flank line slope modification can increase the area of contact ellipse. But the flank line slope modification tends to increase the transmission error. Profile crowning modification has a degressive effect on the meshing. The contact ellipse and relative curvature are not sensitive to the transverse profile slope modification. For small FPD angle, flank line slope modification and helix crowning modification can improve the mesh characteristics. But the transmission error decreases firstly then increases and the area of ellipse increases with the increase of helix crowning modification. Compared to the large FPD angle situation, the mesh behaviors for small FPD angle are more sensitive to the tooth modifications. Finally, the loaded tooth contact analysis were performed and it shows a good correlation with the theoretical tooth contact analysis results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanism and Machine Theory - Volume 119, January 2018, Pages 142-160
نویسندگان
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