SU1272035A1

SU1272035A1 - Variable-speed drive

Info

Publication number: SU1272035A1
Application number: SU843800330A
Authority: SU
Inventors: Иван Григорьевич Мухин; Александр Иванович Мухин; Наталья Ивановна Кузевич; Ольга Николаевна Мухина; Владимир Викторович Кузевич
Original assignee: Mukhin Ivan G; Mukhin Aleksandr; Kuzevich Natalya; Mukhina Olga N; Kuzevich Vladimir V
Priority date: 1984-06-21
Filing date: 1984-06-21
Publication date: 1986-11-23

Description

Изобретение относится к машиностроению и может быть использовано в механизмах с бесступенчатым регулированием скорости ведомого вала.The invention relates to mechanical engineering and can be used in mechanisms with stepless speed control of the driven shaft.

Цель изобретения -- повышение надежности за счет установки второго промежуточного фрикционного звена и усовершенствования конструкции механизма изменения передаточного отношения.The purpose of the invention is to increase reliability by installing a second intermediate friction unit and improving the design of the gear ratio change mechanism.

На фиг.I изображен вариатор, общий вид в разрезе; на фиг.2 - разрез А—А на фиг.1; на фиг.З — разрез Б-- Б на фиг.2; на фиг.4 и 5 — рычаг, две проекции; на фиг.6 — кольцо: на фиг.7 разрез В В на фиг.6; на фиг.8 -- вид 1' на фиг.7; на фиг.9 — вид А на фиг.2.In Fig. I shows a variator, a General view in section; figure 2 - section a — a in figure 1; in Fig.Z - section B - B in Fig.2; Figures 4 and 5 show a lever, two projections; in Fig.6 - ring: in Fig.7 section B In Fig.6; on Fig - view 1 'in Fig.7; figure 9 is a view a in figure 2.

В корпусе 1 вариатора установлен ведущий вал 2 с жестко закрепленными на нем ведущим сферическим иолым фрикционным элементом 3. Соосно с ведущим валом 2 установлен ведомый вал 4 с ведомым сферическим полым фрикционным элементом 5. Внутри фрикционных элементов 3 и 5 размещены взаимодействующие с ними первое и второе промежуточные фрикционные звенья 6 и 7 и вкладыш 8, закрепленный на корпусе 1. Каждое промежуточное фрикционное звено 6 и 7 установлено в кольце 9 на шариках 10. Кольцо подпружинено блоком пружин 11 и установлено на рычаге 12 П-образной формы, имеющем штырь 13 и кулачки 14, с которыми взаимодействуют кулачки 15 вкладыша 8.In the case 1 of the variator, a drive shaft 2 is installed with a leading spherical and hollow friction element 3. The driven shaft 4 with a driven spherical hollow friction element 5 is mounted coaxially with the drive shaft 2. Inside the friction elements 3 and 5, the first and second interacting with them intermediate friction links 6 and 7 and the liner 8, mounted on the housing 1. Each intermediate friction link 6 and 7 is installed in the ring 9 on the balls 10. The ring is spring-loaded by the spring unit 11 and mounted on the lever 12 U-shaped fo We having a pin 13 and cams 14 which interact with the cams 15 of the liner 8.

На концах рычага 12 выполнены отверстия, в которых установлена втулка 16, смонтированная на валике 17, размещенном в горизонтальном окне вкладыша 8. В· кольце 9 по бокам выполнены проушины 18, каждая из которых установлена на втулке 16. На кольце 9 выполнен резьбовой участок 19, на котором закреплена крышка 20. В середине кольца 9 выполнено окно 21, в котором расположен рычаг 12, на одном конце которого образован кольцевой выступ со „шлицевой поверхностью 22 на торце, с которой взаимодействует втулка 23 со шлицевой поверхностью 24 на торце. На другом конце втулки 23 закреплены шарниры 25, взаимодействующие с дугообразными элементами 26 тяг 27, соединенных шарнирно с двуплечим рычагом 28, который соединен ¢-0 штурваломAt the ends of the lever 12, holes are made in which a sleeve 16 is mounted mounted on a roller 17 located in the horizontal window of the insert 8. In the ring 9 there are eyelets 18 on each side, each of which is mounted on the sleeve 16. A threaded section 19 is made on the ring 9 on which the cap 20 is fixed. In the middle of the ring 9, a window 21 is made in which a lever 12 is located, at one end of which an annular protrusion is formed with a “spline surface 22 at the end, with which the sleeve 23 interacts with the spline surface 24 at the end. At the other end of the sleeve 23, hinges 25 are fixed, interacting with the arcuate elements 26 of the rods 27, pivotally connected to the two-arm lever 28, which is connected by the steering wheel ¢ -0

29. Тяги 27 размещены в направляющих корпуса 1.29. Traction 27 is placed in the guides of the housing 1.

Вариатор работает следующим образом.The variator works as follows.

Для получения нужного передаточного отношения штурвал 29 поворачивают на определнный угол в соответствии со стрелочным указателем (не показан). При этом каждая из гяг 27 перемещается по направляющим 30 корпуса 1 в разных направлениях и при помощи шарниров 25 поворачивает втулки 23 также в противоположных направлениях. Последние при помощи торцевых !плицевых поверхностей 24, взаимодействующих со шлицевыми поверхностями 22 рычагов I 2. поворачивают их, а вместе с ними и промежуточные фрикционные звенья 6 и 7 в разные стороны на соответствующий угол.To obtain the desired gear ratio, the steering wheel 29 is rotated by a certain angle in accordance with a pointer (not shown). In this case, each of the rods 27 moves along the guides 30 of the housing 1 in different directions and with the help of hinges 25 rotates the bushings 23 also in opposite directions. The latter with the help of end! Plate surfaces 24, interacting with the spline surfaces 22 of the levers I 2. rotate them, and with them the intermediate friction links 6 and 7 in different directions at an appropriate angle.

Передача вращения передается от ведущего вала 2 со сферическим полым фрикционным элементом 3 на промежуточные фрикционные звенья 6 и 7 и далее на ведомый сферический элемент 5 и ведомый вал 4.The rotation transmission is transmitted from the drive shaft 2 with a spherical hollow friction element 3 to the intermediate friction links 6 and 7 and then to the driven spherical element 5 and the driven shaft 4.

Claims

The invention relates to mechanical engineering and can be used in mechanisms with un-tuned pei-lining of the speed of the driven shaft. The purpose of the invention is to increase reliability by installing a second intermediate friction link and improving the design of the mechanism for changing the transmission ratio. Figure 1 shows the variator, general vi ;, in section; on Fig.2raz A-A in Fig.1; on fig.Z - section B - B in figure 2; in figures 4 and 5 - lever, two projections; figure 6 - ring; on phi | -.7 - section В In figure 6; Fig.8 is a view of I in Fig.7; ia FIG. 9 is a view A of FIG.

2. In the Cornus 1 of the variator, a leading shaft 2 is installed with a spherical hollow friction element rigidly fixed on it

3. Coaxially with the drive shaft 2, the driven shaft 4 is installed with the driven spherical hollow friction element 5. Inside the friction elements 3 and 5, the interaction is interposed with the first and second intermediate friction links 6 and 7 and the insert 8 fixed on the cornea 1. Each intermediate friction link the link 6 and 7 is installed in the ring 9 on the balls 10. The ring is mounted on the spring block 11 n set r; and the lever 12 Г1 -shaped () zor.my, have P1ty |) 1) 1.3 and .. 14 steps with which in: - unimodusgv Yu | the cams 15 of the liner 8. At the ends of the lever 12 are made, the holes in which the VT is installed 16 are mounted on the roller 17, spaced 1 in the horizontal window of the liner 8. The ring 9 on the sides are made of iron 18, each of which is mounted on the sleeve 16. , chain 9 has a threaded section 19 on which cover 20 is fixed. In sulfur, incidentally, 1 finger 9 a window 21 is made in which lever 12 is located, at one end of which an annular protrusion is formed with a “splined surface 22 at the end with which mutual acting sleeve 23 with sh. 1 facets surface 24 per ton RNU. On another KOhHie vtu.: 1kki 23 are fastened central axles 25, interacting with 26 tg 27 arcuate elements that are connected to the two-arm lever 28, which is connected to the steering wheel. K; 29. Ti 27 sizes in the direction of the 30th corps. The variator works as follows. To obtain the desired transfer ratio, the A-29 is turned at a certain angle in conjunction with an arrow pointer (not shown). In this case, each of the tg 27 moves along the guides 30 of the Korgus 1 in different directions and, with the aid of the pins 25, rotates the sleeves 23 also in opposite directions. The latter, with the help of end faces of the front surfaces 24 interacting with the spline surfaces 22 of the levers I 2, rotate them, and with them the intermediate friction links 6 and 7 in different directions to the corresponding angle. The transmission of rotation is transmitted from the drive shaft 2: about the spherical hollow friction element 3 to the intermediate friction links 6 and 7 and further to the driven spherical element 5 and the driven shaft

4. Claims of the invention A variator comprising a body, a coaxial master and a slave wa; 1y with a spherical and hollow friction e.ment of coaxially driven in it, the first nroms / curved friction link d | -: meter installed between them; s: im B1; morning diameter with (|) joint but; 1b x four-part elements, and mechanism and: changed; -1 gear ratio, characterized in that, in order to increase reliability, the variator is equipped with a second analogous friction link located symmetrically to the first, and the mechanics of the change in the transfer fK .MO from op | enu p nt. In the form of two shoulders of a lever connected with it articulated with it and placed on the root of two tons of grams, each of which is followed by four four-dimensional arches of cement. |; 1pair connecting with extreme pairs: 11;) s; | ednyh; 1vuh BTVMOK, imek) niksh on the end of each w ,, enuye eE surface, and two levers with a spline over: -1post. each interacting with the corresponding n.1itsovaya novoshnosti ntulki and associated ka; Kdy with the corresponding nrome.intermediate {)) rncnipiVI: sheno. .

FIG.

Fi.7