SU872839A1 - Flexible safety coupling - Google Patents

Description

(54) ELASTIC PROTECTION COUPLING

one

The invention relates to mechanical engineering and can be applied in devices in which it is necessary to transmit stable torque at a certain misalignment of the shafts.

The closest in technical essence of the invention is an elastic-safety clutch containing a driving and driven half coupling and a driving disk located between the coupling half, connected to the driving coupling half with elastic sleeves, and with a driven device through a safety device Ij,

The disadvantages of this coupling are the large axial dimensions and limited operational capabilities.

The purpose of the invention is to expand the operational capabilities and reduce the axial dimensions.

The goal is achieved by the fact that the elastic-safety coupling, containing the driving and driven coupling halves and the driving disk between the coupling halves, connected with the driving coupling coupling with elastic sleeves, and with the driven coupling, is fitted with a safety device installed concentrically with the driving coupling half. axially displaceable drive disc and safety device is located between

- a pressure ring and a driven half coupling in the holes made in the drive disk. FIG. 1 shows an elastic safety clutch, longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a section BB in FIG. one.

10 The clutch contains the leading 1 and the driven 2 coupling halves and the driving disk 3 interposed between them, connected to the driving coupling half by fingers 4 with elastic sleeves 5. The disk 3 is connected to the driven half by means of the sleeve 6 and safety

15 of the device made, for example, in the form of balls 7 with plungers 8 and springs 9. The driving disk 3 is mounted rotatably with respect to the driven / half coupling and is secured against axial movement by the washer 10. The pressure ring 11 is connected to

 drive disc 3 with the possibility of axial movement, for example, by means of studs 12 and nuts 13. With the help of ring II and

nuts 10, the force of the balls 7 is regulated to the wedge-shaped grooves 14 in the driven half coupling 2, i.e. regulation of the magnitude of the limiting moment transmitted by the clutch.

The clutch works as follows.

The torque is transmitted from the leading coupling half i through the fingers 4 and the elastic sleeves 5 to the driving disk 3, then through the safety device to the driven half coupling 2. When the torque limit is reached, the balls 7 under the action of axial force move, compressing the spring 9, and the output from the wedge-shaped grooves 14 of the driven half coupling 2, while the driving disk 3 slips and no torque is transmitted to the driven coupling half. By supplying the elastic safety clutch with a pressure ring mounted concentrically with the coupling half and connected to the drive disk with the possibility of axial movement and positioning of the safety device between the pressure ring and the driven coupling half in the holes made in the driving disk, axial dimensions are reduced

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clutches and expand its operational capabilities.

Claims (1)

Invention Formula An elastic-safety clutch containing a driving and driven half coupling and a driving disk located between the coupling half, connected to the driving half coupling with fingers with elastic sleeves, and with the driven coupling through a safety device, in order to expand operational capabilities and reduce axial dimensions, it is equipped with a clamping ring mounted concentrically on the leading half coupling and connected to the drive disk with the possibility of axial movement, and the safety device is located between izhimnym ring and a driven half coupling performed in the drive plate holes. Sources of information taken into account in the examination 1. V. V. Polkov, I. D. Barbash. A. O. Khovsky Coupling Handbook. L., “Mashinostroenie, 1974, p. 336-339, fig. 9.12. Ll g8 7 b1 /