SU589472A2 - Centrifugal clutch - Google Patents

Description

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The invention relates to mechanical engineering.

From the main auth. St. No. 333323 is a well-known centrifugal clutch containing an end of a triple-arranged inner drive, an outer driven half coupling and elastic tapes, placed in an annular gap formed by the coupling half and pushed by the centrifugal force to the driven coupling half. One end of each of the strips made of Solid friction material is loosely inserted into the slot made at the end of the drive coupling half.

However, the known coupling cannot sweep: it is not possible to bake the regulation of the transmitted torque and switching torque.

In order to allow adjustment of the torque transmitted by the clutch and the moment of switching on, the proposed clutch is provided with a cup, with side slots through which the friction bands run, while the cup is fixed to the drive coupling half with the possibility of turning relative to the longitudinal axis of the clutch and changing the length of contact with the driven half coupling part of the friction tape.

FIG. 1 shows the proposed centrifugal clutch, partial longitudinal section; in fig. 2 (a cut is shown along A-A in Fig. I, the Coupling consists of cocoon trichno located inside the leading I and an outer driven 2 half coupling, in the gap between which there are two field-mounted leites 3: Both ends of the tapes are fixed in the slots of the leading coupling half { with the help of plates 4 and screws 5. The length of the free sections of the tapes exceeds the circumference of the inner surface of the driven half coupling. The leading coupling half 1 is equipped with a cup 6 that clips to it, which

Fixed to it are bolts 7, mounted in annular grooves 8. In glass 6, side grooves with a width of ALINE b are made on opposite sides, through which the tapes 3 pass freely from the inner cavity of the glass to the outer one. The dimensions of the cup D1 and Dg are chosen so as to ensure the free arrangement of the ms belts, with the coupling and coupling halves I and 2.

Works iufta as follows. When the leading coupling half rotates in the direction of the arrow, the belts 3 are pressed by centrifugal forces to the inner surface of the driven coupling half and due to the friction that occurs in the I GIL section I carry it away. At the same time, the magnitude of the frictional force that arises depends, at a constant rotational speed of the leading, grolumufta, on the length of the section f located

over the friction radius R The length of this section is adjusted by changing the angular position of the cup 6 relative to the leading coupling half 1. For this, the bolts 7 are loosened, after which the pack moves along the groove 8 to the desired position.

This changes the angle L between the plane of attachment of the tapes and the location of the side grooves of the glass. The latter leads to a change in the sections I that determine the length of the contacting part of the friction bands with the driven coupling half.

Men, the angular position of the glass, you can carry the required moment transmitted by the clutch or set the required moment of inclusion of the clutch. After setting the required position of the belts 3 relative to the inner surface of the coupling half 2, the screws 5 are tightened and the coupling is ready for operation.

Claims (1)

Invention Formula Centrifugal clutch autom. St. No. 333323, characterized in that, in order to ensure the possibility of adjusting the torque transmitted by the clutch and the torque wk rk crnn, by changing the length of the part of the friction tape in contact with the driven half-coupling, it is provided with a glass with side slots through which the friction tapes are passed this glass is fixed on the leading coupling half with the possibility of rotation relative to the longitudinal axis of the coupling. A. A F1l.g