کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
801854 1467763 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tooth contact analysis for helical gear pairs generated by a modified hob with variable tooth thickness
ترجمه فارسی عنوان
تجزیه و تحلیل تماس دندان برای جفت دنده های دنده ای تولید شده توسط یک تغییر شستشو با ضخامت دندان متغیر
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی


• We propose a mathematical model of the modified hob with variable tooth thickness.
• The model of the modified hob can be simulated the traditional and the VTT hob.
• The related coordinate systems are established for a CNC hobbing mechanism.
• The gear tooth contact simulations are investigated by applying the TCA method.

Conventionally, the longitudinal crowning of helical gears can be accomplished by varying the center distance between the hob and work gear in gear hobbing process. Without a crossed angle compensation, however, this center distance variation produces twisted tooth flanks on the work gear. A methodology is thus proposed herein to reduce the tooth flank twisting of a longitudinal crowning gear by applying a modified variable tooth thickness hob and having a diagonal feed without varying the center distance. This study also investigates the gear tooth surface topologies, contact ellipses and transmission errors of the work gear pairs, generated by a conventional hob and the proposed modified hob with variable tooth thickness, respectively. Three numeral examples are presented to illustrate and verify the merits of the proposed gear hobbing method with longitudinal crowning.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanism and Machine Theory - Volume 71, January 2014, Pages 40–51
نویسندگان
, ,