SU1581910A1

SU1581910A1 - Torque-limiting friction clutch

Info

Publication number: SU1581910A1
Application number: SU874343906A
Authority: SU
Inventors: Михаил Павлович Шишкарев
Original assignee: М. П. Шишкарев
Priority date: 1987-12-15
Filing date: 1987-12-15
Publication date: 1990-07-30

Abstract

Изобретение относитс к машиностроению, в частности к устройствам дл передачи момента вращени ограниченной величины. Цель изобретени - повышение эксплуатационных свойств за счет улучшени динамических характеристик и повышени точности срабатывани . Ведуща 1 и ведома 2 полумуфты св заны фрикционным диском 3. Силовое замыкание муфты осуществл етс пружиной 15, котора передает усилие через промежуточный диск 12 и шпильки 13 на свободно установленный нажимной диск 5. Шарики 7 завальцованы в гнездах упорного диска, шарики 6 установлены на нажимном диске в сквозных аксиальных отверсти х, левые торцы которых завальцованы. Шарики 6 поджаты пружиной 10, усилие которой передаетс через диск 8 с наконечниками 9. Нажимной диск 5 снабжен крышкой 11. При работе на шариках возникает распорна сила, стрем ща с отжать вправо шарики 6. Это ослабл ет силу нажати пружины 10 на нажимной диск 5, а следовательно, и сжатие фрикционных пар. С ростом передаваемого крут щего момента увеличиваетс и распорна сила, вследствие чего шарики 6 перемещаютс вправо, что приводит к увеличению угла контакта шариков 6 и 7 и к резкому росту распорной силы. 2 ил.The invention relates to mechanical engineering, in particular, to devices for transmitting a torque of a limited amount. The purpose of the invention is to improve the performance properties by improving the dynamic characteristics and increasing the accuracy of response. The master 1 and the slave 2 coupling halves are connected by a friction disk 3. The clutch force closes by a spring 15, which transmits force through the intermediate disk 12 and the studs 13 to a freely mounted pressure disk 5. The balls 7 are rolled in the slots of the stop disk, the balls 6 are mounted on the pressure disk drive through axial holes, the left ends of which are rolled. The balls 6 are preloaded by the spring 10, the force of which is transmitted through the disk 8 with tips 9. The pressure disk 5 is provided with a cover 11. When working on the balls, an expansion force arises, tending to press the balls 6 to the right. This weakens the force of pressing the spring 10 on the pressure disk 5 and, consequently, the compression of friction pairs. As the transmitted torque increases, the thrust force also increases, as a result of which the balls 6 move to the right, which leads to an increase in the contact angle of the balls 6 and 7 and to a sharp increase in the thrust force. 2 Il.

Description

А-АAa

Claims

The claims ₅

A safety friction clutch comprising coaxially mounted leading and driven half-couplings interacting by means of friction disks placed between a thrust disc rigidly connected to the leading half-coupling and a pressure disk spring-loaded to the thrust disk, a pressure disk spring force adjusting unit and a squeezing device including rolling bodies, characterized in that from ₁₅ to improve performance properties by improving the dynamic response characteristics and enhance accuracy, it is equipped interm full-time disk associated with the pressure disk with the possibility of adjustable axial movement relative to the latter, an additional spring and additional rolling bodies installed in the cylindrical recesses made in the thrust disk, the main rolling bodies being installed in the through axial holes made in the pressure disk, fixed from moving in the direction to the thrust disk and spring-loaded with an additional spring relative to the intermediate disk, and the main spring is placed between the adjustment unit and intermediate disk.