SU1439312A1

SU1439312A1 - Safety friction clutch

Info

Publication number: SU1439312A1
Application number: SU874244874A
Authority: SU
Inventors: Михаил Павлович Шишкарев
Original assignee: М.П.Н1ишкарев
Priority date: 1987-05-15
Filing date: 1987-05-15
Publication date: 1988-11-23

Abstract

Изобретение относитс к машиностроению , в частности, к устройствам дл передачи момента вращени . Цель изобретени - повышение точности и плавности срабатывани муфты. Соосные одна с другой ведуща 1 и ведома 2 полумуфты св заны между собой фрик- ;ционным диском 3. Нажимной диск 4 ус- 1тановлен на втулке 6 и св зан с ней шпонкой 5. Шарики 7 расположены в гнездах переменной глубины, которые вьшолнены в упорном диске полумуфты 1 и втулке 6. Нажимной диск 4 подпружинен пружиной 11, а втулка 6 - пружиной 8. Гне зда под шарики имеют пе- ременный угол наклона рабочих поверхностей , увеличивающийс по мере уменьшени глубины гнезда. Между втулкой 6и крышкой 10, закрепленной на нажимном диске 4, имеетс осевой зазор. При перегрузке втулка 6 под действием возрастающей распорной силы на шариках 7 перемещаетс вправо. В результате выбираетс осевой зазор между втулкой 6 и крьшкой 10, а шарики 7переход т на профиль гнезд с боль- mmi углом наклона рабочих поверхностей . Происходит возрастание распорной силы, что ведет к повьпаению точности и плавности срабатывани муфты. 2 Ш1. Ф (ЛThe invention relates to mechanical engineering, in particular, to devices for torque transmission. The purpose of the invention is to improve the accuracy and smoothness of the coupling operation. Coaxial with each other leading 1 and knowing 2 half couplings are interconnected by a frictional disc 3. The pressure disk 4 is mounted on hub 6 and connected with it by a key 5. Balls 7 are located in slots of variable depth, which are filled in the thrust the half-coupling disk 1 and the sleeve 6. The pressure disk 4 is spring-loaded by the spring 11, and the sleeve 6 by the spring 8. The balls below the balls have a variable angle of inclination of the working surfaces, which increases as the depth of the socket decreases. Between the sleeve 6 and the cover 10 fixed on the pressure disk 4, there is an axial clearance. In case of overloading, the sleeve 6 under the action of increasing expansion force on the balls 7 moves to the right. As a result, an axial gap is selected between the sleeve 6 and the cover 10, and the balls 7 go to the profile of the sockets with a large angle of inclination of the working surfaces. An increase in the thrust force occurs, which leads to increased accuracy and smoothness of the coupling operation. 2 Ш1. F (L

Description

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Claims

Claim

A safety friction clutch, containing coaxially mounted leading and driven half-couplings, interconnected by friction disks placed between the thrust and spring-loaded pressure disks of the leading half-clutch, the transmitted torque control unit and the squeezing stabilizing device in the form of balls placed in the socket, characterized in that, with In order to increase the accuracy and smoothness of operation, the squeezing stabilizing device is made in the form, spring-loaded by means of an adjustable sleeve spring, With the possibility of limited axial movement relative to the pressure disk, the slots for the rolling elements are made on the thrust disk and the end face of the sleeve facing it and have a variable angle of inclination of the working surfaces.

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