SU958734A1

SU958734A1 - Safety coupling

Info

Publication number: SU958734A1
Application number: SU803244970A
Authority: SU
Inventors: Анатолий Степанович Дресвянкин; Леонид Васильевич Прохоров
Original assignee: Предприятие П/Я М-5380
Priority date: 1980-12-30
Filing date: 1980-12-30
Publication date: 1982-09-15

Description

(54) ПРЕДОХРАНИТЕЛЬНАЯ МУФТА(54) PROTECTION COUPLING

1one

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

Известна предохранительна муфта, содержаща ведомую зубчатую полумуфту и ведущую полумуфту, на ос х которой установлены зубчатые колеса с эксцентриками, 5 взаимодействующими с упругим элементом, выполненным в виде подвижного металлического кольца, охватывающего эксцентрики 1.The known safety coupling contains a driven gear coupling half and a driving coupling half, on the axes of which gears with eccentric wheels are mounted, 5 interacting with an elastic element made in the form of a movable metal ring covering eccentrics 1.

Недостатком этой муфты вл етс от- Q сутствие возможности регулировки момента срабатывани .The disadvantage of this clutch is the lack of possibility of adjusting the response torque.

Известна также предохранительна муфта, содержаща ведомую полумуфту с зубчатым венцом на внутренней поверхнос- 5 ти и ведущую полумуфту, иа которой на ос х установлены зубчатые колеса с эксцентриками , взаимодействующими на упругое металлическое кольцо, охватывающее эксцентрики и подэ«имающее их один к другому. В муф- 2о те имеет узел дл регулировани момента срабатывани , выполненный в виде резьбового стержн , взаимодействующего с двум роликами, контактирующими с виутренней поверхностью металлического кольца 2.A safety clutch is also known, which contains a driven half coupling with a ring gear on the inner surface and a leading coupling half, and on its axes there are gears with eccentrics that interact on an elastic metal ring that surrounds the eccentrics and pod them each other. In the muffler, it has a knot for controlling the actuation moment, made in the form of a threaded rod interacting with two rollers in contact with the inner surface of the metal ring 2.

Однако така муфта не обеспечивает точности срабатывани при заданном моменте.However, such a coupling does not provide an accuracy of operation for a given moment.

Цель изобретени - повышение точности срабатывани .The purpose of the invention is to improve the accuracy of operation.

Поставленна цель достигаетс тем, что в предохраннтельной муфте, содержащей ведомую полумуфту с зубчатым венцом на внутренней поверхности, ведущую полумуфту , на которой посредством осей установлены зубчатые колеса, вход щие в зацепление с ведомой полумуфтой, а также .узел дл регулировани момента срабатывани , выполненный в виде резьбовых стержней, венец ведомой полумуфты выполнен упругим, венцы зубчатых колес ведущей полумуфты выполнены с эксцентриситетом относительно осей, венец ведомой полумуфты выполнен упругим, а резьбовые стержни узла дл регулировани момента срабатывани св заны с ос ми зубчатых колес ведущей полумуфты .The goal is achieved by the fact that in a safety clutch containing a driven half coupling with a toothed crown on the inner surface, a driving coupling half on which gears are mounted through the axles that engage with the driven coupling half, as well as a knot for adjusting the operation torque, the form of threaded rods, the crown of the driven half-coupling is made elastic, the crowns of the gears of the driving coupling half are made with eccentricity about the axes, the crown of the driven coupling half is made elastic, and the threaded the rods of the torque control unit are connected to the axles of the gears of the drive half coupling.

На фиг. 1 изображена муфта, общий вид; на фиг. 2 разрез А-А на фиг. 1.FIG. 1 shows the coupling, general view; in fig. 2, section A-A in FIG. one.

Claims

The safety coupling contains a driven coupling half 1 with an elastic gear crown 2 and a driving coupling half 3 with an assembly for adjusting the actuation moment in the form of threaded rods 4, on their axes 5 which are mounted gears 6, the gearing crowns of which are made with eccentricity h relative to the axes located in meshing with an elastic gear 2.) The clutch works as follows. When transmitting torque, gears 6 tend to rotate on their axles. Due to the eccentricity of the axis, the elastic crown of the gear 2 is deformed until the forces in the clutch are balanced. As the torque increases, the eccentric gears 6 rotate to a greater angle, continuing to stretch the elastic crown of the gear 2. As the torque increases beyond the allowable, the eccentric gears 6 begin to roll around the gear ring 2 and the clutch starts to operate in the slip mode. . The adjustment of the moment of operation of the coupling is carried out by threaded rods 4, by means of which the distance (Fig. 1) from the eccentric pinion axis to the coupling axis is varied. This achieves a preliminary deformation of the elastic gear ring of wheel 2 and a change in the magnitude of the moment of operation of the clutch. The use of the invention makes it possible to simplify the construction of a toothed safety clutch. Claims of the Invention A safety clutch comprising a driven half coupling with a ring gear on the inner surface, a driving coupling half on which gears are mounted through the axles that engage with the driven coupling half, as well as a node for controlling the operation torque, made in the form of threaded rods, differing in By the fact that, in order to increase the accuracy of operation, the gears of the drive coupling half are installed with eccentricity about the axes, the coupling half is made elastic, and the threaded ends the operation timing control unit is connected to the gear axes of the drive half of the coupling. Sources of information taken into account during the examination 1. USSR author's certificate No. 341983, cl. F 16 D 7/04, 1971.

2. USSR author's certificate number 417650, cl. F 16 D 7/04, 1972 (prototype).