SU1002704A1

SU1002704A1 - Toothed gearing

Info

Publication number: SU1002704A1
Application number: SU813306088A
Authority: SU
Inventors: Николай Лазаревич Утутов; Валентин Павлович Шишов
Original assignee: Ворошиловградский машиностроительный институт
Priority date: 1981-06-26
Filing date: 1981-06-26
Publication date: 1983-03-07

Description

Изобретение относитс к маьшностроению и может быть использовано во всех .област х народного хоз йства в механических приводах .The invention relates to mechanical engineering and can be used in all areas of national economy in mechanical drives.

Известна зубчата передача, со- . держсица круглые эксцентрично посаженные колеса. Данна передача имеет переменное передаточное отношение благодар смещению осей врацег йи колес на одинаковую величину в одном направлении и одинаковому числу зубьев Г1.}.Known gear transmission, co. holding round eccentrically set wheels. This gear has a variable gear ratio due to the displacement of the axles of the wheels of the wheels by the same amount in one direction and the same number of teeth G1.}.

Недостатком этой передачи вл етс то, что радиальный зазор в зацеплении переменный, достига зна- читальных величин на линии смещени осей колес, и превышает установленные норьы. Это приводит к повышению шума работающей передачи, нарушает плавность изменени передйточното отношени и увеличивает динамические нагрузки на зубь при из пересопр жении, что отрицательно .сказываетс на работе привода.The disadvantage of this transmission is that the radial clearance in the engagement is variable, reaching significant values on the line of displacement of the axles of the wheels, and exceeds the established gears. This leads to an increase in the noise of the operating gear, disturbs the smoothness of the change in the front-end ratio, and increases the dynamic loads on the teeth during the intersection, which negatively affects the operation of the drive.

Наиболее близкой к предлагаемой по технической сущности и достигаемому эффекту вл етс зубчата riepeдача , содержаща колеса, установден;ные эксцентрично на валах. Передача содержит зубчатые.колеса, ось цилиндра выступов зубьев которых параллельна оси валов, на которых уста- новлены зубчатые колеса .Closest to the proposed technical essence and the achieved effect is a gear rieduchacha, containing wheels, installed eccentrically on the shafts. The transmission contains gear wheels, the cylinder axis of the protrusions of the teeth is parallel to the axis of the shafts on which the gears are mounted.

Недостатке известной зубчатой передачи вл ютс невысокие Ьибро акустические характеристики.A disadvantage of the known gearing is the low vibro-acoustic characteristics.

Цель изобретени - улучшение виброакустических характеристик.The purpose of the invention is to improve vibro-acoustic characteristics.

Указанна цель достигаетс тем, This goal is achieved by

10 что в зубчатой передаче, содержащей колеса, установленные зксцентрично на валах, ось цилиндра выступов зубьев одного или обоих .колес наклонена к оси вала на угол , оп15 редел егллй по зависимости10 that in a gear transmission containing wheels mounted eccentrically on the shafts, the cylinder axis of the protrusions of the teeth of one or both wheels is inclined to the shaft axis at an angle, determined by its dependence

).).

Ч( H (

ъъ

2Q где Г - радиус делительного цилиндра колеса)2Q where G is the radius of the wheel dividing cylinder)

8 - эксцентриситет колеса; b - ширина зубчатого венца/ f - угол ;Г1овооота колеса. На фиг. 1 показаны центроида 8 - wheel eccentricity; b is the width of the ring gear; / f is the angle; FIG. 1 shows the centroid

25 колес, ось цилиндра выступов зубьев одного из которых наклонена к оси iBjyiai на фиг. 2 - зубчатг ге колеса с центроидами по фиг. I ни фиг.З центроиды колес, ось.цилиндров 25 wheels, the cylinder axis of the protrusions of the teeth of one of which is inclined to the axis iBjyiai in FIG. 2 shows gear wheels with centroids of FIG. I not fig.Z wheel centroids, axle cylinders

Claims

thirty ; the protrusions | teeth of each of which are inclined to the axis in FIG. 4 gears with centroids of FIG. 3. Gears 1 and 2 gears are made with centroid / w 3 and 4. At the wheel 1, the division circle 5 at one end is not. coincides with the pitch circle 6 on the other torus (tse, and at the wheel 2 there are dividing circles | Butts at the ends coincide. Wheels 1 and 2 are made with eccentricities. E. and O. rotation centroid, as well as the displacement (eccentricity) of the rotation axes of the centroid from the axes.O and Ofy and the dividing circles of the same wheels. , and wheel 2, without inclining the generatrix. It also shows the nature of the mating of the teeth and Fig. 3 shows centroids 7 and 8 of round eccentric gear wheels, the outer surfaces of which are inclined at the same angle — in one direction to the plane, perpendicular to ––––––––––––––––––––––– inter-axial distance lines. In this case, the pitch circles of the wheels on one face plane are not; they coincide with the pitch circle g / m of the same tfonec on the other face plane. FIG. 4 are the gear boxes 9 and 10 of the gear, where the wheels 9 and 10 are made with an inclined plane forming at an angle in one direction, a perpendicular line of the axial distance. The eccentricity of these wheels is the same and directed in one direction. Transmission works as follows.,. When the gears 1 (Fig. 1) and 9 (Fig. 3) rotate from the positions shown in these figures by 90, the angle X decreases from the maximum value to 0 °, and with further rotation by another 90, the angle 3 increases from Oda to the maximum value and so on. An increase in the angle T causes an increase in the radii of the centroid 5 (Fig. 1), 7, and 8 (Fig. 3). As a result, the centroids 5, 7, and 8 in the design of qi x on the face plane have an elliptical shape. This ensures the uniformity of the radial clearance in the engagement of the eccentric round wheels and improves the dynamic transmission performance. The effect of the use of transmission is to reduce noise, more smoothly: the nature of the change in gear ratio, reducing the dynamic loads associated with the overdrive of the teeth. Claims gear transmission comprising eccentrically mounted wheels on shafts, characterized in that, in order to improve vibro-acoustic characteristics, the cylinder axis of the teeth projections, one or both wheels is inclined to the shaft axis by an angle determined by where G is the radius of the wheel dividing cylinder; J is the wheel eccentricity. B is the width of the ring gear. f, - the angle of rotation of the wheel. Sources of information taken into account in the examination 1, USSR Author's Certificate 422894, class, F 16 N 1/04, 1972. 2, Malevsky-Malevich P, S. Round eccentrically planted gears. Izv. universities. Mechanical Engineering, 1958, No. 2, p. 65-70 ((Prototype).

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