SU1260581A1 - Expanding clutch - Google Patents

Description

one

Invention from Oshito:; b.aiiii iioc rpoenia, namely to devices, i. iH transmissions of rotation, and can be used, for example, to start wind engines.

The purpose of the invention is to increase the load capacity li of operation.

On the clutch,

centrifugal in FIG. 2 -fig. 1 shows a longitudinal section; Section A-A in FIG. one.

The centrifugal clutch consists of coaxially mounted drive 1 and driven 2 half couplings connected by a jack of fricking disks 3 and 4. On the coupling half 1, through the guide pin 5, a press wheel 6 is installed, movable in the axial direction. On the coupling half 1, a stop disk 7 is also installed, fixed in axial axle 1 with the help of the stop colp 8. Disconnection of the driven elements is provided by a release spring 9. Between the uni and the pressure disks are placed in. nests, formed by bevels push-iioro disk, ball 10.

An axially movable locking element made in the form of a cup 12, which has a circumferential cylindrical surface for the balls 10, is mounted on the half coupling 1 by means of the guide pin 11 and has additional centrifugal weights in the form of beads 13 on slots formed by bevels on the inner surface of the glass 12 , fit onto the thrust disk 7. (takan 12 is guided in the direction of and.1.1 by the spring 14, the force of which is controlled by | aik 15 screwed onto the threaded end of the coupling half 1.

The centrifugal clutch operates as follows.

During acceleration of the leading coupling half 1, the balls 10 do not receive a radial non-offset. since the enveloped cylindrical

the surface of the glass

ld

-

five

() 5812

12, therefore, the clutch is not engaged in the initial acceleration phase. In this case, the balls 13 under the action of centrifugal force act on the conical surface of the glass 12 and change it internally, compressing the spring 14, and after the left end of the glass 12 passes over the centerline of the balls And) the last legs get the possibility of radial displacement: the pressure disk 6. Moving to the left and compressing the spring 9, turns on the clutch. Due to the effect on the pressure disk b of the axial component of the centrifugal force of the balls 10, it moves further to the right by the distance determined by the force of the spring 14 and the axial component of the centrifugal forces of the balls 10 and 13. These values are chosen such that in the final position at nominal The frequency of rotation of the coupling balls 10 relied simultaneously on the thrust 7 and pressure 6 discs.

As can be seen, but FIG. 1, the moment of engagement of the coupling depends on the forces of the springs 9 and 14, the axial components of the centrifugal forces of the balls 10 and 13, the force of friction in the spring-by-point connection and the force of friction between the balls 10 and the pressure disc 6. Varying force

15

20

25

thirty

35

springs 14,. it is possible to change the rotational speed, at which the clutch is activated, which expands its operating possibilities.

Transferring the clutch to the moment when the driving elements have a certain rotational speed allows the clutch to be used in cases when it is necessary to accelerate parts without load, followed by 11 m switching on, for example, in wind turbines that have a malfunctioning triggering element.

The use of the invention permits one to increase the load capacity of the device while simultaneously adjusting its control to a predetermined frequency of rotation.

Yu

Editor M. Kelsmesch Order 5208/31

FIG. 2

Sostavitel V. Ivanov Tehred I. Veres- Circulation 880

VNIIPI USSR State Committee

for inventions discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Branch PPP "Patent, Uzhgorod, st. Design,

Corre Sub

Proofreader T. Kolb Subscription

Claims (1)

A CENTRIFUGAL COUPLING, containing coaxially mounted driven and leading coupling halves connected by a friction disc package, a centrifugal switching mechanism made in the form of weights installed between the pressure plates and axially fixed axial disks, and a switching delay mechanism containing an axially spring-loaded locking element, contacting with centrifugal loads, characterized in that, in order to increase the load capacity and ease of use, the delay mechanism is equipped with an additional GOVERNMENTAL centrifugal weights disposed in a separator between the thrust plate and the locking member mounted on the hub and the drive coupling half configured as a cup, the inner working surface is formed by mating the cylindrical and conical surfaces, respectively covering the main and additional centrifugal loads. FIG. Ί cl QO 12o0e8 ΐ