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Прецессирующая передача для приводов запорной арматуры нефтегазопроводов и редукторных вставок насосов для добычи тяжелых нефтей

Authors: Syzrantsev, Vladimir Nikolaevich; Pazyak, Andrey Aleksandrovich;

Прецессирующая передача для приводов запорной арматуры нефтегазопроводов и редукторных вставок насосов для добычи тяжелых нефтей

Abstract

The relevance of the discussed issue is caused by the need to provide serviceability and reliability of gearboxes for pipeline valve drives operating under cold conditions and to produce heavy crude oil from stripper wells using screw pumps and Henry Pumps. Bevel gears with a small shaft angle with double-concave-convex teeth have been studied to date. Gear cutting for such gears is extremely complicated and labor-intensive. The authors proposed and studied a straight bevel gear with a small shaft angle with a non-generated gear and a generated pinion. However, lack of longitudinal localization of the bearing contact does not allow providing the required torque and product reliability in the presence of transmission errors of the mating gears. The main aim of the study is to develop mathematical models of gear tooth surface generating with localized bearing contact and gears mesh of bevel gears with a small shaft angle with a non-generated gear and a generated pinion The methods used in the study: theory of mechanisms and machines, theory of gearing, methods of vector and matrix algebra, numerical techniques of the transcendental (nonlinear) equations. The results. The authors developed the bevel gears with a small shaft angle with a non-generated gear and a generated pinion for drives of oil and gas equipment. They proposed to manufacture longitudinally crowned gear tooth surfaces- and based on the theory of gearing the authors obtained the relationships describing the gear tooth surface. A program was developed to determine the position of the lines of action in meshing in a gear with the localized contact and curvature of gear tooth surface. This program is a base to calculate the load-carrying capacity and contact stresses of gears. The authors found out that gears are insensitive to position errors of the mating pinion and gear.

Актуальность работы обусловлена необходимостью обеспечения работоспособности и безотказности приводов запорной арматуры в суровых условиях эксплуатации, а также возможности добычи высоковязкой нефти из малодебитных скважин с помощью винтовых насосов или насосов Henry Pump. К настоящему времени выполнены исследования обкатного варианта плоскоконической передачи с двояковыпукловогнутыми по длине зубьями. Процесс нарезания зубьев колес таких передач крайне сложен и трудоемок. Предложена и исследована полуобкатная плоскоконическая передача с прямыми зубьями. Однако отсутствие продольной локализации пятна контакта в этой передаче не позволяет обеспечить требуемую ее несущую способность и работоспособность при наличии погрешностей взаимного расположения звеньев. Цель работы: построение математических моделей процессов формообразования поверхностей зубьев и их зацепления полуобкатной плоскоконической прецессирующей передачи с локализованным контактом. Методы исследования: теория механизмов и машин, теория пространственных передач зацеплением, методы векторной и матричной алгебры, численные методы решения систем трансцендентных уравнений. Результаты. Для приводов нефтегазового оборудования разработана полуобкатная плоскоконическая прецессирующая передача с малым межосевым углом с локализованным контактом в продольном направлении зубьев; построены математические модели процессов формообразования поверхностей зубьев колеса и шестерни; получены зависимости для расчета координат точек контактных линий в передаче и кривизны зуба колеса - основных геометрических характеристик, необходимых для решения задач расчета нагрузочной способности передачи и расчета ее на контактную прочность. Показано, что передача малочувствительна к осевым смещениям шестерни и колеса.

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Keywords

геометрия, bevel gears with a small shaft angle with a non-generated gear and a generated pinion, локализованные контакты, lines of action, curvature of gear tooth surface, localized bearing contact, кривизна зуба колеса, geometry and kinematics, контактные линии, кинематика, полуобкатные плоскоконические передачи

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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