SU684199A1

SU684199A1 - Elastic coupling

Info

Publication number: SU684199A1
Application number: SU772542003A
Authority: SU
Inventors: Михаил Семенович Тривайло; Павел Михайлович Тривайло; Юрий Михайлович Гузенко
Original assignee: Trivajlo Mikhail S; Trivajlo Pavel M; Guzenko Yurij M
Priority date: 1977-11-10
Filing date: 1977-11-10
Publication date: 1979-09-05

Description

II

Изобретение относитс к машиностроению .The invention relates to mechanical engineering.

Известна эластична муфта, содержаща две полумуфты с установленными между ними эластичными элементами, работающими на сжатие l. Недостатком этой муфты вл етс больша жесткость.A known elastic coupling comprising two coupling halves with elastic elements installed between them working in compression l. The disadvantage of this coupling is its high rigidity.

Известна также эластична муфта, содержаща охватьгаающие с одна другую полумуфты, обращенные одна к другой поверхности которьк имеют овальное сечение, и расположенный между ними эластичный элемент 2. Данное устройство вл етс наиболее близким к изобре тению по технической сущности и достигаемому эффекту.Also known is an elastic coupling containing coupling halves facing one another, which face one another and have an oval cross-section, and elastic element 2 located between them. This device is closest to the invention in its technical essence and the effect achieved.

Одако недостатком этой муфты вл етс сложность конструкции эластичного эле мента и невозможность изменени жесткоста муфты.However, the disadvantage of this coupling is the complexity of the design of the elastic element and the impossibility of changing the stiffness of the coupling.

С целью упрощени конструкции и обеопечени возможности изменени жесткости эластичный элемент выполнен в виде набора упругих ШП01ЮК круглого и трапецеи даль кого сечещш.In order to simplify the construction and ensure the possibility of changing the stiffness, the elastic element is designed as a set of elastic FPS01K round and trapezas far away.

Осевой разрез муфты показан на фиг.The axial section of the coupling is shown in FIG.

1; на фиг. 2 - разрез А-А фиг. 1.one; in fig. 2 - section A-A of FIG. one.

Муфта состоит из охватьтакЕцих одна другую с зазором по/ту муфт 1 и 2, которые имеют обращенные ош1а к другой наружную и внутреннюю поверхности опа- пьного сечени . В зазоре меж,ау полумуфтами расположен эластичный элемент, выполненный в виде набора разной формы в поперечном сечении шпонок, например резиновых цилиндрических 3 и трапецеидальных 4, изготовленных из кусков клинового ремн . Полумуфта 1 имеет торцовые буртики 5, которые исключают перемещение шпонок 3 и 4 в осевом направлении во врем работы.The coupling consists of each other with a gap on / that of the clutches 1 and 2, which have opposite faults facing the other, the outer and the inner surface of the section. In the gap between, ay semi-couplings is an elastic element, made in the form of a set of different shapes in the cross section of the dowels, such as rubber cylindrical 3 and trapezoidal 4, made of pieces of V-belt. The coupling half 1 has a mechanical flange 5, which exclude the movement of the keys 3 and 4 in the axial direction during operation.

Работает муфта следующим образом.The coupling works as follows.

Claims

During the rotation of the coupling half 1, with its oval cam, presses the elastic elements against the inner surface of the half-dome (5) you 2, exert pressure on it and carry it away from the rear. When this occurs, the elastic deformation of the elastic elements occurs, resulting in a smooth transfer of the load between the coupling halves. Since the elastic element is made in the form of an alternating set of rubber cylindrical 3 and trapezoidal 4 keys from the V-belt, thanks to the free space between the keys and the surface of the coupling, the keys 3 and 4 can freely deform under compression of the elasticity and the compensating properties of the coupling. The compensating properties of the coupling also increase due to the increased mobility of the elastic element, which, unlike the prototype, is made composite. Swapped the keys 3 and 4 in places, it is possible to change the stiffness of the coupling in the widths. So, for example, GPI grouping separately trapezoidal cylindrical dowels and the location of trapezoidal shpzhok at the ends of the long axis of the oval surfaces of the coupling, and Cylindrical - at the ends of the minor axis, increase the stiffness of the coupling. If the key groups are swapped with each other, the stiffness of the coupling i will be significantly reduced. The elastic olement, if necessary, can be made from a set of one cylindrical dowels or one V-belt segments. In the first case, the elasticity of the coupling greatly increases, although its carrying capacity is somewhat reduced. In the second case, the elasticity of the fit decreases, i.e., its rigidity increases. By varying the number of cylindrical and trapezoidal keys in the set of the flexible element, as well as the location alone or in groups, it is possible to adjust the coupling stiffness in shea} limits and adjust it when assembled to the optimum mode of operation when it is able to extinguish as much as possible vibrations and dynamic loads. Formula of the Invention Elastic coupling comprising half-coupling covering one another with a gap, facing one surface of which has an oval cross section, and an elastic element located in the gap between them, in order to simplify the design and provide changes in stiffness, the elastic element is made in the form of a set of elastic keys of circular and trapezoidal cross-section. Sources of information taken into account during the examination 1. V., S, Polkov, I. D. Barbash, Couplings, L ,, Maiganostroenie, 1973, p. 113, fig. 79.

2. USSR author's certificate number 176757, cl. F16 ID 3/28, 1966.