SU1438624A3 - Safety clutch - Google Patents

Abstract

The invention relates to vehicles, namely, devices for transmitting and limiting the transmitted torque. The purpose of the invention is to increase reliability. The coupling contains two coupling halves (P) with hubs in the form of clamps. P made with radial protrusions (RV) 9 and 10. Kkkdy RV has at least one supporting surface (SP) 11. PB 9 are located between PB 10 with Zazo

Description

/four

Ijah oh

to

Ijjj

CM

1 / g.2

between their OPs. 11. Flat strands 7 and 8 are installed in OP 11 with tension in the circumferential direction. On the faces of the PB facing one another, there are stops 14 and 15. The elastic ring 12 with a slot covers the springs 8 and is in contact with the electric. switch 13. The hub of one of the P can be equipped with a lever connected to one of the shafts. Stupin, made in one piece with P. Val

connection with the clamp, made elongated and located in the hub of another P with a circumferential gap. Torque is transmitted from one P through springs 7 and 8 to another P. When overloaded, springs 7 and 8 bend and expand the elastic ring 12. A signal is given to the switch, the torque decreases. When the load is removed, the springs return to their original position. 7 hp ff, 6 ill.

one

The invention relates to vehicles, namely, devices for transmitting and limiting the transmitted torque.

The aim of the invention is to increase the reliability of the structure,

FIG. 1 shows a disassembled clutch; in fig. 2 - coupling, cross section; in fig. 3 - clutch general view; pas figs. 4 - clutch, spagged with a lever; in fig. 5 is the same as in FIG. 3, an end view; on fig.b characteristic of the flat spring clutch

The clutches contain two coupling halves 1 and 2 with hubs 3 and 4, connected respectively to the driving and driven shafts 5 and 6. The coupling halves 1 and 2 are interconnected by intermediate elements in the form of flat springs 7 and 8 installed in the half couplings with the possibility of moving radially, with relative angular movement of the coupling halves.

Half coupling 1 and 2 are made with radial protrusions 9 and 10, each of which has at least one bearing surface 11. The protrusions 9 of one coupling half 1 are located between the projections 10 of the other coupling half 2 with gaps between the supporting surfaces 11 facing one another. with flat tension in the circumferential direction, flat springs 7 and 8 are installed.

Outside of coupling half 1 and 2 there is an elastic ring 12 with a slot that surrounds the springs 7 and 8 and changes its shape at the moment it is activated by the pruzkin 8. The coupling is equipped with

five

five

electrically, by a switch 13, controlling the movements of the coupling halves 1 and 2. On the facing surfaces of adjacent surfaces of the coupling halves 1 and 2, stops 14 and

15 with the possibility of their mutual KO

tact Two mutually parallel springs 7 and 8 can be installed between the two adjacent protrusions 9 and 10 of the half couplings 1 and 2, while the narzha / spring spring 8 contacts the elastic ring 12. The switch 13 can be made in the form of a microswitch with a control roller 16 contacting with the outer surface of the elastic ring 12.

The hubs 3 and 4 half ft 1 and 2 can be made in the form of clamps in one piece with the half-guts 1 and 2. The hub 3 of one of the coupling halves can be equipped with a lever ohm 17 connected to one of the shafts, and the hub 4 of the other half-coupling 2 made in the form of a yoke, connected to another shaft, with. this st uepdz both coupling half 1 and 2 are made in one piece with the corresponding coupling half. The shaft 6 connected to the collar (hub 4) of one of the coupling halves (half coupling 2) is made elongated and located in the hub of the other coupling half with a circumferential gap.

The construction is fixed in assembled form with covers 18 and 19 and screws 20 and 21, with the clamp 18 adjacent to the projections 9 of the half coupling 1 attached by screws 20 to the projections 10 of the coupling half 2, and krishka-19 contacting the projections 4 of the coupling half 2, facing 3

21 to

1A

ledges 3 by

Replenum screws lumufta 1.

The clutch works as follows.

Torque is transmitted from coupling half 2 through springs 7 and 8 to coupling half 1. When the torque exceeds the torque of the permissible spring, it bends and presses on the elastic ring 12, which increases in diameter and contacts the roller 16 of the switch 13, a signal is applied torque reduction. After the load is removed, the springs return to their original position.

Due to the proposed implementation of the coupling, the reliability of the design is increased.

Claims (8)

1. A safety coupling comprising two coupling halves with hubs, connected respectively to the drive shaft and the driven shaft, and interconnected by intermediate elements mounted in the coupling halves with the possibility of moving in the radial direction with provision of relative angular movement of the coupling halves, the elastic ring covering the intermediate elements a slot that changes shape at the time of actuation under the influence of intermediate elements, and an electrical switch controlling the movement of the coupling halves, is different This is due to the fact that, for the purpose of reliability, the intermediate elements are made in the form of flat springs, and the coupling half They are filled with radial protrusions, each of which has at least one support surface, while the protrusions of one half-coupling are located between the projections of the other half-coupling with gaps between facing 1A38624 five 15 0 five ABOUT five 0 five one to another are supporting surfaces in which flat springs are fitted with tension in the circumferential direction. 2. The clutch according to claim 1, characterized in that the button of the electric switcher contacts with elastic ring. 3. Mufta on PP. 1 and 2, characterized in that on the facing surfaces of adjacent protrusions there are stops made with the possibility of their mutual contact. 4. Coupling on PP. 1-3, characterized in that two mutually parallel springs are installed between two adjacent protrusions of the coupling halves, the outer spring being in contact with the elastic ring. 5. Mufta on PP. 1-4, that is, so that the switch is made in the form of a microswitch with a control roller in contact with the outer surface of the elastic ring. 6. Mufta on PP. 1 - 4, about t l and - tachayuschaya that the hub coupling half is made in the form of clamps in one piece with the coupling half. 7. Coupling popp. 1-6, characterized in that the hub of one of the coupling halves is provided with a lever connected to one of the shafts, and the hub of the other coupling half is made in the form of a yoke connected to the other shaft, while the hubs of both semi-mt, ft are made in one piece with corresponding coupling halves. 8. Coupling on PP. 1 to 7, characterized in that the shaft connected to the yoke of one of the coupling halves is made elongated and is located in the hub of the other half of the coupling with a circumferential gap. -fS n C N) (IZ.5 Compiled by Y. Markov Editor M. Kelemesh. Tehred M. Khodanych Order 5975/59 Circulation 784 VPU-SHI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 1438624 i2 / 7 eight F (e. Proofreader N. King Subscription