Синтез современных цилиндрических прямозубых эвольвентных передач в курсе "Прикладная механика"
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Дата
2015
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
НТУ "ХПИ"
Анотація
Изложена методика компьютерного проектирования прямозубых передач при переходе от однопарного к двухпарному зацеплению при сохранении неизменными: корпусных деталей, валов и посадочных поверхностей. Даны примеры синтеза 4-х передач, имеющих одинаковые размеры, но разную нагрузочную способность: две с коэффициентами перекрытия ε<2 и две с ε>2. Приведена диаграмма для количественной оценки зависимости повышения нагрузочной способности передач с ε>2 в зависимости от сочетания чисел зубьев шестерни и колеса в исходной передаче.
The technique of computer design of spur gears in the transition from single-pair to two-pair linkage is stated. While the case shaped parts, shafts and mounting surfaces remain invariable. The non-standard initial contour having parameters ha*=1.25, co*=0.20, α=20° was used in a technique basis. Quality of the designed gears is estimated by two criteria along all line of linkage: level of contact voltages according to Hertz and intensity of abrasive damage of teeth (coefficient of specific sliding). We created two diagrams for quickly to estimate prospects of replacement of single-pair engagement by the two-pair. The first diagram concerns dependence of overlap factor ε of the projected gear with ε<2 on numbers of teeth z1 and z2 of initial gear with ε>2. The second diagram concerns quantitative assessment of increase of rated power P1 of gear upon transition from the optimized single-pair engagement to not optimized two-pair engagement (depending on a combination of numbers of teeth z1 and z2 in initial gear). We gave examples of synthesis of 4 transfers: having the same sizes, but different loading capacity: two to overlap factor ε<2 and two with ε>2. The article, technique of synthesis and the developed program and methodical providing are focused on ordinary engineers, technicians and students.
The technique of computer design of spur gears in the transition from single-pair to two-pair linkage is stated. While the case shaped parts, shafts and mounting surfaces remain invariable. The non-standard initial contour having parameters ha*=1.25, co*=0.20, α=20° was used in a technique basis. Quality of the designed gears is estimated by two criteria along all line of linkage: level of contact voltages according to Hertz and intensity of abrasive damage of teeth (coefficient of specific sliding). We created two diagrams for quickly to estimate prospects of replacement of single-pair engagement by the two-pair. The first diagram concerns dependence of overlap factor ε of the projected gear with ε<2 on numbers of teeth z1 and z2 of initial gear with ε>2. The second diagram concerns quantitative assessment of increase of rated power P1 of gear upon transition from the optimized single-pair engagement to not optimized two-pair engagement (depending on a combination of numbers of teeth z1 and z2 in initial gear). We gave examples of synthesis of 4 transfers: having the same sizes, but different loading capacity: two to overlap factor ε<2 and two with ε>2. The article, technique of synthesis and the developed program and methodical providing are focused on ordinary engineers, technicians and students.
Опис
Ключові слова
многопарное зацепление, нагрузка, прочность, зубчатое колесо, проектирование, компьютерная программа, учебный процесс, мощность, cylindrical gear, multi-engagement
Бібліографічний опис
Бабичев Д. Т. Синтез современных цилиндрических прямозубых эвольвентных передач в курсе "Прикладная механика" / Д. Т. Бабичев, А. И. Смовж, А. В. Кривошея // Вестник Нац. техн. ун-та "ХПИ" : сб. науч. тр. Темат. вып. : Проблемы механического привода. – Харьков : НТУ "ХПИ". – 2015. – № 35 (1144). – С. 10-19.