RU2774507C1 - Compensatory-elastic coupling - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering, in particular to couplings. Compensation-elastic coupling consists of annular metal membranes and interconnected by a torsion bar of the leading and driven half-coupling. The membranes are assembled in coupling halves by means of connecting elements in pairs, one or two pairs in each of the coupling halves. Membrane pairs have the ability to compensate for axial, radial and angular displacements of the coupling halves relative to each other. The membranes are made with a vibration-absorbing surface coating.

EFFECT: reduction in the acoustic energy transmitted by the shafts between the shafts is achieved.

1 cl, 2 dwg

Description

The proposed device relates to the field of mechanical engineering, in particular, in shipbuilding to devices for transmitting torque from the engine shaft through the gearbox to the shaft of the driven mechanism, for example, to the propeller shaft.

Known compensation clutch containing two packages of thin-walled metal discs installed between the coupling halves with an intermediate shaft (see, for example, GOST R 50371-92, p. 66, p. 18).

Known elastic coupling with a limiting device against overload, where the driving and driven coupling halves are connected by means of bolts by two elastic disks (see, for example, the book: Kozhevnikov S. N. and other "Mechanisms". Directory. Publishing house "Engineering" , Moscow, 1976, p. 394, Fig. 6.35).

Known elastic torsion clutch containing connected by a torsion bar made in the form of a steel plate or membrane with the ability to compensate for transverse movements of the leading half-coupling and made of composite material, the driven half-coupling, which is a coil with two flanges, one of which is made in the form of a corrugated membrane with the ability to compensate for axial movements (see, for example, patent RU 2 268 414 C2, publ. 20.01.2006) - prototype.

The present invention solves the problem of compensating for various shaft displacements when transmitting torque from the engine shaft (through a gearbox) to the shaft of the driven mechanism, for example, to the propeller shaft, due to the compliance of both the driving and driven coupling halves in all directions and reducing the transmission of acoustic energy produced, for example , reducer, by using flexible metal membranes on both half-couplings with their surfaces coated with vibration-absorbing material.

To achieve the specified technical result in the proposed compensatory-elastic coupling containing consisting of annular metal membranes and interconnected by a torsion, the leading and driven coupling halves, according to the invention, are assembled in the coupling halves by means of connecting elements in pairs (one or two pairs in each of the coupling halves) with the provision the possibility of compensating for axial, radial and angular displacements of the coupling halves relative to each other the annular flexible metal membranes are made with a vibration-absorbing surface coating.

A distinctive feature of the invention is that the annular flexible metal membranes assembled in coupling halves by means of connecting elements into pairs (one or two pairs in each of the coupling halves) with the possibility of compensating for axial, radial and angular displacements of the coupling halves relative to each other are made with a vibration-absorbing surface coating.

In FIG. 1, 2 schematically shows the design options of the proposed compensation-elastic coupling for transmitting torque from the engine shaft to the shaft of the driven mechanism, for example, to the propeller shaft (through a gearbox).

The compensating-elastic coupling is made in the form of a leading 1 and a driven 2 half-couplings connected by a torsion bar 3. The half-couplings 1 and 2 are each assembled in pairs by means of connecting elements 4, 5 (and fasteners, in Fig.1, 2 not shown) annular flexible metal membranes 6 (one (see Fig. 1) or two (see Fig.2) pairs in each of the coupling halves), the surface of which is covered with vibration-absorbing (vibration-damping) material 7. The coating of the membranes can be both one-sided and two-sided.

Works the proposed compensation-elastic coupling as follows (see Fig. 1, 2). The torque from the motor shaft (pos. not indicated) is transmitted (for example, through a gearbox, pos. not indicated) to the driving half-coupling 1, then through the membranes 6 and elements 4 and 5 to the torsion bar 3 and through it to the driven half-coupling 2 and to the shaft driven mechanism (for example, on the propeller shaft - pos. not indicated). At the same time, due to the presence of annular flexible metal membranes 6 in the coupling halves 1 and 2, the proposed coupling is able to compensate for axial, radial and angular displacements of the shafts to which the driving 1 and driven 2 coupling halves are connected. The presence of a coating of membranes 6 with vibration-absorbing (vibration-damping) material 7 ensures the absorption of acoustic energy produced by the gearbox. The design of the coupling with two pairs of membranes 6 on each of the half-couplings 1 and 2 (see Fig. 2) expands the capacity of the coupling to compensate for displacements of the connected shafts and to reduce the acoustic energy transmitted by the shafts.

Claims (1)

A compensating-elastic coupling containing, consisting of annular metal membranes and interconnected by a torsion, the leading and driven coupling halves, characterized in that they are assembled in the coupling halves by means of connecting elements into pairs, one or two pairs in each of the coupling halves, with the possibility of compensating axial, radial and angular displacements of the coupling halves relative to each other, the annular flexible metal membranes are made with a vibration-absorbing surface coating.

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