SU870788A1

SU870788A1 - Safety coupling

Info

Publication number: SU870788A1
Application number: SU802864828A
Authority: SU
Inventors: Богдан Матвеевич Гевко; Александр Павлович Шовкун; Орест Иванович Дубик
Original assignee: За вители А.П.Шовкун и О.И.Дуб:
Priority date: 1980-01-04
Filing date: 1980-01-04
Publication date: 1981-10-07

Description

(54) ПРЕДОХРАНИТЕЛЬНАЯ МУФТА(54) PROTECTION COUPLING

1one

Изобретение относитс к машиностроению , в частности к устройствам дл передачи вращени .The invention relates to mechanical engineering, in particular to devices for transmitting rotation.

Известна предохранительна муфта, содержаща упорный и нажимной диски и расположенный между ними ведомый элемент 11.Known safety clutch containing thrust and pressure disks and located between the driven element 11.

Недостатком ее вл етс низка точность срабатывани .The disadvantage of it is low accuracy of operation.

Известна вредохранительна муфта, содержаща ведомый элемент с фрикционными кольцами, расположенный между упорньм диском и нажимным диском с кольцевой вставкой, выполненной с лунками , и расположенные в них тела качени 2. IKnown harmful coupling, containing a driven member with friction rings, located between the stubborn disk and the pressure disk with a ring insert, made with holes, and rolling elements 2 located in them. I

Данное техническое решение вл етс наиболее близким к изобретению по технической сути и достигаемому результату .This technical solution is the closest to the invention in terms of its technical essence and the achieved result.

Недостатком его вл етс низкие эксплуатационные характеристики.The disadvantage of it is low performance.

Цель изобретени - повышение эксплуатационных характеристик.The purpose of the invention is to improve performance.

Поставленна цель достигаетс тем ,что кольцева вставка смонтирована с вoзмo}kиocтью поворота и выполнена с дополнительньми лунками большей глубины , фрикционное кольцо,установлено между йей и нажимным диском, а ведомый элемент выполнен с лунками под тела качени .The goal is achieved by the fact that the annular insert is mounted with an optional} rotation and is made with additional holes of greater depth, a friction ring, is installed between the pressure dial and the follower is made with holes for rolling bodies.

На фиг.1 показана предохранительна муфта; на фиг.2 - разрез А-А наFigure 1 shows a safety clutch; figure 2 - section aa on

5 фиг.1.5 figure 1.

Предохранительна муфта состоит цз ведущей полумуфты - упорного диска 1, жестко соединенной с ведущим валом 2. На антифрикционной втулке 3 установленThe safety coupling consists of the central coupling half of the coupling half - resistant disc 1, rigidly connected to the drive shaft 2. On the anti-friction bushing 3 is installed

0 ведомый элемент 4, контактирующий с ведущей полумуфтой через фрикционное кольцо-накладку 5. На ведущем валу 2 с помощью шлицевого соединени установлен нажимной диск 6, который подпружинен тарельчатой пружиной 7. Ее начальное сжатие устанавливаетс гайками 8. Нг1жимной диск 6 имеет кольцевую вставку 9, установленную с возможностью вращени и отделенную от0 driven member 4, in contact with the master coupling half through the friction ring-pad 5. On the drive shaft 2, by means of a spline connection, a pressure disk 6 is installed, which is spring-loaded with a disc spring 7. Its initial compression is established by nuts 8. The ng1zhimny disk 6 has an annular insert 9, rotatably mounted and separated from

20 нажимного диска фрикционньш дискомкольцом 10,20 pressure disc friction disc 10,

На торце вставки и на обращенном к ней торце ведомого элемента имеютс лунки 11 и 12, в которых расположеныAt the end of the insert and at the end of the slave element facing it, there are holes 11 and 12 in which

25 тела качени 13, например шарики.25 body rolling 13, for example balls.

На кольцевой вставке выполнено в два раза больше лунок, чем тел качени , причем половина из них - дополнительные лунки 14 - выполнены большейOn the ring insert, two times more holes were made than rolling bodies, and half of them - additional holes 14 - were made larger

Claims

30 depths. Deep holes alternate with shallow ones. The rolling bodies are installed in the separator 15. On the ring insert there are turn-key slots 16. The clutch works as follows. The torque from the shaft 2 through the coupling half 1 is transmitted to the driven member 4, which is pressed against the friction lining 5 by the spring 7 through the pressure disk with the friction ring 10 ring insert 9, rolling body 13 In this case, the rolling body is: 1 s in inserts 11 9. With an increase in the transmitted clutch of that torque higher than the permissible value, the end surface of the driven element slips along the friction lining 5. At the same time, the balls roll out of the holes 11, made on the ring insert 9, and fall into the holes 14. As a result The pressure plate b is moved in the direction of the follower by the amount of the difference between the depth of the said holes, which leads to a sharp decrease in the force of compression of the disk-shaped spring. In this case, the driven member rotates freely. Put together with it as one piece, the rolling body 13, the separator 15 and the ring insert 9 rotate. To return the safety lock. The coupling must be inserted into the grooves 16 and the key must be turned into an angle equal to the angle between the deep and shallow holes. . Due to the presence of an annular insert, separated from the pressure disk by a friction element, it was possible to realize a self-disconnecting safety coupling with high mechanical characteristics. Claims of the invention Safety clutch comprising a driven element with friction rings, located between the stop disk and the pressure disk with an annular insert made with holes, and rolling elements located in them, which are designed to improve the performance of the ring the insert is pivotally mounted and made with additional holes of greater depth, one of the friction rings is installed between it and the pressure disk, and the driven element is made with holes under the body. Sources of information taken into account in the examination 1. The author's certificate of the USSR 582425, cl. F 16 D 7/02, 1975.

2.Certificate of Certificate No. 2595630, cl. F 16 D 7/02, 1978 (prototype), 11 If fl V jfJAfl y y 1yy / X //// XK ///// y ///. mm: mm77777-. :; $: $$ SS $ SSSS $: FU. f