SU1339326A1

SU1339326A1 - Keyless joint

Info

Publication number: SU1339326A1
Application number: SU853953043A
Authority: SU
Inventors: Анатолий Владимирович Тетельмин; Александр Михайлович Хохрин
Original assignee: Предприятие П/Я В-2496
Priority date: 1985-09-11
Filing date: 1985-09-11
Publication date: 1987-09-23

Abstract

Изобретение относитс к машиностроению и предназначено дл передачи момента от вала на установленную на нем деталь и предохранени от перегрузки. Цель изобретени - улучшение эксплуатационных свойств путем упрощени разборки, сборки и регулировки. Соединение содержит ступенчатый вал 1 и охватывающую его деталь 2. Между валом 1 и деталью 2 установлена упруга втулка 3, поджата через втулку 4 и кольцо 5 гайкой 6 к уступу вала 1. На торцах кольца 5 и втулки 4 выполнены выступы, контактирующие между собой. Кольцо 5 и втулка 4 фиксируютс относительно вала 1 стопорами 9 и 14, расположенными в продольной и кольцевой канавках на валу 1. При сборке соединени выступы кольца 5 устанавливаютс против выступов втулки 4 и зат гивают гайку 6. Момент передаетс за счет сил трени между деталью 2 и втулкой 3. При срабатывании во врем перегрузки деталь 2 проворачиваетс относительно вала 1 и кольца 5 вместе с втулкой 4. Вершины выступов соскакивают друг с друга. Втулка 4 перемещаетс , и ослабл етс зат жка упругой втулки 3 - соединение не передает момента. Конструкци соединени позвол ет упростить разборку-сборку и регулировку соединени без перемещени детали 2. 2 ил. (Л со 00 со со ю 05The invention relates to mechanical engineering and is intended to transfer the moment from the shaft to the part mounted on it and to protect it from overload. The purpose of the invention is to improve the performance properties by simplifying disassembly, assembly and adjustment. The connection contains a stepped shaft 1 and a part 2 surrounding it. Between the shaft 1 and part 2, an elastic sleeve 3 is installed, pressed through sleeve 4 and ring 5 by nut 6 to the flange of shaft 1. At the ends of ring 5 and sleeve 4, projections are made in contact with each other. The ring 5 and the sleeve 4 are fixed relative to the shaft 1 by the stoppers 9 and 14 located in the longitudinal and annular grooves on the shaft 1. When assembling the joint, the projections of the ring 5 are mounted against the projections of the sleeve 4 and tighten the nut 6. The moment is transmitted due to the frictional forces between part 2 and the sleeve 3. When triggered during an overload, the part 2 turns about the shaft 1 and the ring 5 together with the sleeve 4. The tops of the projections jump off each other. The sleeve 4 is moved, and the tightening of the elastic sleeve 3 is loosened - the connection does not transmit a moment. The design of the joint allows to simplify disassembly-assembly and adjustment of the joint without moving part 2. 2 sludge. (L from 00 to from 05

Description

Изобретение относитс к машиностроению и предназначено дл передачи момента отвала на установленную на нем деталь и предохранени от перегрузки.The invention relates to mechanical engineering and is intended to transfer the moment of the blade to the part installed on it and to protect it from overload.

Цель изобретени - улучшение эксплуатационных свойств соединени путем упро- ш.ени разборки, сборки и регулировки.The purpose of the invention is to improve the performance properties of a joint by simplifying disassembly, assembly and adjustment.

На фиг. 1 изображено соединение при передаче момента, продольный разрез; на фиг. 2 - вид А на фиг. 1, после срабатывани соединени .FIG. 1 shows the connection at the moment transfer, longitudinal section; in fig. 2 is a view A of FIG. 1, after the connection is triggered.

Соединение состоит из ступенчатого вала 1, охватываемого деталью 2. Между валом 1 и деталью 2 установлена упруга втулка 3, поджата через нажимную втулку 4 и кольца 5 гайкой 6. На кольце 5 выполнены выступы 7, а на прижимной втулке 4 - ответные выступы 8. На детали 2 закреплен резьбовой стопор 9, хвостовик 10 которого вхоПодготовка соединени к работе после его срабатывани производитс в следующем пор дке.The connection consists of a stepped shaft 1, covered by part 2. Between shaft 1 and part 2, an elastic sleeve 3 is installed, pressed through the pressure sleeve 4 and the ring 5 by a nut 6. On the ring 5 there are projections 7, and on the clamping sleeve 4 there are counter projections 8. The part 2 is fastened with a threaded stopper 9, the shank 10 of which is inlet. The joint is prepared for operation after it has been triggered in the following order.

Отвинчиваетс гайка 6, кольцо 5 перемешаетс в осевом направлении до вывода стопора 14 из зацеплени со шлицами 15 на валу 1. Втулка 4 проворачиваетс до совмешени паза 11 с хвостовиком 10 стопора 9. Выступы 8 на кольце 5 совмешаютс с выступами 7 втулки 4, затем стопор 14 10 вводитс в зацепление с ближайшим из пазов шлиц 15 на валу 1 и зат гиваетс гайка 6. При этом оси выступов втулки 4 и кольца 5 могут быть несколько смещены, что не отражаетс на работоспособности соединени .The nut 6 is unscrewed, the ring 5 is mixed axially until the stopper 14 leaves the engagement with the splines 15 on the shaft 1. The sleeve 4 rotates until the groove 11 coincides with the stem 10 of the stopper 9. The protrusions 8 on the ring 5 will mix with the protrusions 7 of the bush 4, then the stopper 14 10 is engaged with the nearest slot slot 15 on the shaft 1 and the nut 6 is tightened. In this case, the axes of the projections of the sleeve 4 and the ring 5 can be slightly displaced, which does not affect the performance of the connection.

Конструкци соединени позвол ет производить подготовку его к работе после срабатывани без разрыва кинематической св зи механизма (перемещени детали 2) и может примен тьс в установках, где зат15The design of the joint allows it to be prepared for operation after operation without breaking the kinematic connection of the mechanism (moving part 2) and can be used in installations where

дит в выполненные на торцах втулок 4 иdit made in the ends of the sleeves 4 and

3 осевые пазы И и 12 и кольцевую канав- 20РУДн н разрыв кинематической св зи, при ку 13 на валу 1. На кольце 5 закреплен сто-этом упрощаетс сборка и разборка в труд- пор 14, который входит в выполненные нанодоступных местах и в местах с односторон- валу 1 щлицы 15.ним доступом.3 axial grooves I and 12 and an annular groove - 20RUdn kinematic coupling, with 13 on shaft 1. On ring 5 is fixed, this simplifies assembly and disassembly in workpiece 14, which is included in the nano accessible places and with one-sided shaft 1 slot 15.in access.

Claims

Invention Formula

The connection works as follows. A keyless connection containing

In the working position, the end protrusion shaft with the annular groove, the ohpha 7 of the ring 5 coincide with the end section of the extractor, the elastic sleeve with

stupas 8 push sleeve 4. Elastic sleeve-axial groove mounted between the shaft

ka 3 is compressed by soldering 6 through the pressure sleeve and the part and pressed by the threaded element 4 and ring 5. Between the shaft 1, the part 2 and the elastic sleeve 3, friction forces are created,

volume through the pressure sleeve to the ledge of the shaft, the ring with the end tabs and the stopper with

allowing transmission of a rotating cylindrical shank placed

cop When the permissible torque is exceeded, the part 2 is turned along with the pressure sleeve 4 and the sleeve 3 relative to the shaft 1 and the ring 5. In this case, the protrusions 7 of the sleeve 4 coincide with the grooves of the ring 5. The sleeve 4 moves in the axial direction and comes out of engagement with the stem 10 of the stopper 9. The elastic sleeve 3 expands and the connection does not transmit torque. Ring 5 rotates with

35

In the axial groove of the elastic sleeve and the annular groove of the shaft, characterized in that, in order to improve the performance properties by simplifying disassembly, assembly and adjustment, the pressure sleeve is made with the end tabs and the axial groove, the ring with the end tabs is installed between the pressure sleeve and the threaded element and is connected with the shaft by means of a spline joint, and the protrusions of the ring are in contact with 1 and sleeve 4 relative to sleeve 3. They interlock with the protrusions of the pressure sleeve, in the groove and part 2. which is located the stopper end.

Vida

Preparing the connection for operation after it is triggered is performed in the following order.

The nut 6 is unscrewed, the ring 5 is mixed axially until the stopper 14 leaves the engagement with the splines 15 on the shaft 1. The sleeve 4 rotates until the groove 11 coincides with the stem 10 of the stopper 9. The protrusions 8 on the ring 5 will mix with the protrusions 7 of the bush 4, then the stopper 14 0 is engaged with the nearest slot slot 15 on the shaft 1 and the nut 6 is tightened. In this case, the axes of the projections of the sleeve 4 and the ring 5 can be slightly displaced, which does not affect the performance of the connection.

The design of the joint allows it to be prepared for operation after operation without breaking the kinematic connection of the mechanism (moving part 2) and can be used in installations where

This breaks the kinematic connection, while simplifying assembly and disassembly in hard-to-reach places and places with one-way access.

and detail and preloaded threaded elements

straight shank placed

five

In the axial groove of the elastic sleeve and the annular groove of the shaft, characterized in that, in order to improve the performance properties by simplifying disassembly, assembly and adjustment, the pressure sleeve is made with the end tabs and the axial groove, the ring with the end tabs is installed between the pressure sleeve and the threaded element and connected to the shaft by means of a spline joint, and the protrusions of the contact ring 15

15

Figg

(Compiled by Y. Runov

Editor N. BobkovaTehred I. VeresKorrektor V. But ha

Order 4204/27 Circulation 811 Subscription

VNIIPI State Committee of the USSR on Inventions and Discoveries

1 13035, Moscow. G-35. Raushsk nab. D. 4/5 Production and Graphic Enterprise, Uzhgorod, ul. Design. four