RU2566574C1 - Resilient element of dish type - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: dish-type resilient element comprises two resilient elements set oppositely in respect to the vertical axis of a separating element. Each resilient element comprises dished resilient surface in the form of a truncated cone, three through grooves forming two truncated conical surfaces connected by three fins are provided on the above surface in the plane parallel to the bases of the truncated cone. Damping cylinders made from cast polyurethane are fixed in the central part of the separating element coaxially to the resilient elements and enter the holes at the truncated conical surfaces' vertices with a gap. Damping elements of bush type with clearance enter the dampening cylinders, they are secured by means of the resilient rings. The resilient rings are secured in holes at tops of the truncated cone surfaces of the resilient element.

EFFECT: increased efficiency of vibration isolation in resonance mode.

2 dwg

Description

The invention relates to mechanical engineering, instrumentation.

The closest technical solution to the claimed object is an elastic plate-type element according to the patent of the Russian Federation No. 2285836 F16F 1/32, 10/20/2006 (prototype), containing elastic flat elements made in the form of a spring suspension.

A disadvantage of the known device is the relatively low efficiency at resonance due to the absence of vibration damping.

The technical result is an increase in the efficiency of vibration isolation in a resonant mode.

This is achieved by the fact that in a disk-type elastic element containing dish-shaped elastic surfaces in the form of a truncated cone, with through grooves in them, connected by ribs directed along the lines forming the conical surface, it contains two opposite elements located opposite the vertical axis of the separating element of the elastic element, each of which contains a dish-shaped elastic surface in the form of a truncated cone, on which three through grooves are made in a plane parallel to the bases of the truncated cone, with the image vaniem two truncated conical surfaces, connected by three ribs, and in the central part of the spacer member coaxially elastic elements fixed damping cylinders are made of polyurethane and injection included with clearances in the holes at the tops of the truncated conical surfaces.

In FIG. 1 shows a resilient plate-type element with three ribs; in FIG. 2 is a plan view of FIG. one

The plate-type elastic element contains two elastic elements 1 and 2 opposite to the vertical axis of the separation element 12, each of which contains a elastic plate-shaped surface in the form of a truncated cone, on which three through grooves, respectively 3 and 3, are made in a plane parallel to the bases of the truncated cone. 4 (Fig. 1 and 2) with the formation of two truncated conical surfaces 1 and 11, connected by three ribs 5 and 6, respectively, directed along the lines forming the conical surface. In the central part of the separation element 12 coaxially to the elastic elements 1 and 2, damping cylinders 9 and 10 are made of injection-molded polyurethane and enter into the holes with gaps 7 and 8, respectively, at the vertices of the truncated conical surfaces 1 and 11 (Fig. 2).

It is possible that damping cylinders 9 and 10, which are rigidly fixed in the central part of the dividing element 12, coaxially with the gap, include damping elements 13 and 14 of the sleeve type, fixed by means of elastic rings fixed in holes 7 and 8 at the tops of truncated conical surfaces elastic elements.

The elastic element of the plate type works as follows.

When vibrations of a vibroinsulated object (not shown in the drawing) installed through the supporting surfaces at the bases of the truncated conical surfaces of the elastic elements 1 and 2, spatial vibration protection and shock protection are provided, while damping cylinders 9 and 10 made of injection-molded polyurethane provide damping in system, and the larger the amplitude of the oscillations, the greater the damping will be provided in the system due to the fact that when the disk-shaped elastic elements 1 and 2 are compressed, the gap will decrease 7 and 8, which includes the damper cylinder 9 and 10 in the openings at the tops of the truncated conical surfaces 1 and 11 and this will lead to additional friction into the system at resonance, and hence to improve the efficiency of vibration isolation in general.

Claims (1)

An elastic dish-shaped element containing a dish-shaped elastic surface in the form of a truncated cone with through grooves in them, connected by ribs directed along the lines forming the conical surface, contains two elastic elements opposite to the vertical axis of the separating element, each of which contains a dish-shaped elastic surface in the form truncated cone, on which are made in a plane parallel to the bases of the truncated cone, three through grooves with the formation of two truncated conic their surfaces connected by three ribs, and in the Central part of the separation element coaxially to the elastic elements are fixed damping cylinders made of injection polyurethane and entering with gaps in the holes at the tops of truncated conical surfaces, characterized in that the damping cylinders are rigidly fixed in the central part of the separation element coaxially with the gap includes sleeve-type damping elements fixed by means of elastic rings fixed in holes at the vertices truncated to onic surfaces of elastic elements.

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