اصلاح پروفیل چرخ‎دندۀ ساده به‌منظور کاهش خطای انتقال استاتیکی

نوع مقاله : مقاله کوتاه

نویسندگان

1 دانشگاه دولتی اصفهان

2 دانشگاه اصفهان

چکیده

در پژوهش حاضر، تأثیر اصلاح پروفیل دندانۀ چرخ‌دندۀ ساده روی خطای انتقال استاتیکی مورد بررسی قرار می‌گیرد. خطای انتقال مهم‌ترین عامل ایجاد سروصدا در یک جفت چرخ‌دندۀ گیردار محسوب می‌شود. درابتدا خطای انتقال با تخمین نرمی دندانه به‌صورت تحلیلی محاسبه می‎گردد. نرمی چرخ‎دنده با درنظر گرفتن دندانه به‌صورت تیر یک‌سرگیردار، انعطاف‎پذیری بدنۀ چرخ‎دنده و اثرات تماسی هرتزین، تعیین می‎گردد. پس از تخمین خطای انتقال استاتیکی، به اصلاح پروفیل دندانه به چهار صورت اصلاح سردندانۀ چرخ‌دنده، سر و ریشۀ دندانۀ چرخ‎دنده، سردندانۀ پینیون و چرخ‌دنده و سر و ریشۀ دندانۀ پینیون و چرخ‎دنده پرداخته می‎شود. نتایج این تحقیق نشان می‌دهد اصلاح سر و ریشۀ دندانۀ پینیون و چرخ‌دنده بهترین روش برای کاهش خطای انتقال می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Spur Gear Profile Modification for the Reduction of Static Transmission Error

نویسندگان [English]

  • sheyda mohaghegh 1
  • mehrdad poursina 2
1 Isfahan University
2 Isfahan University
چکیده [English]

In the present study, the effect of tooth profile modifications on the static transmission error is investigated. The most important factor for investigating noise between two gears is the transmission error. First, the static transmission error is analytically calculated by estimating tooth compliance. The compliance of gear is calculated considering tooth as cantilever beam deflection; rigid body tooth rotation at its base and Hertzian contact. After estimating the static transmission error, tooth profile is modified in four ways: tip relief on the gear teeth only, tip and root relief on the gear teeth only, tip relief on both the gear and pinion teeth and tip and root relief on both the gear and pinion teeth. The results indicate the tip and root relief on both the gear and pinion tooth is the best way for transmission error reduction..

کلیدواژه‌ها [English]

  • Spur gear
  • Noise
  • Transmission Error
  • Profiles Modification

مراجع

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