RU2565791C1 - Equifrequent ring type resilient element - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to machine building. An equifrequent resilient element has two resilient rings arranged coaxially: inner and outer ones. The rings are rigidly interconnected by means of six flat resilient elements with the recesses being provided between them. Four resilient elements are set pairwise symmetrically to the horizontal axis of the inner and outer rings and are of trapezoid shape. Two resilient elements are radially set along the vertical axis and are of rectangular shape. The width of the rectangle of these elements is equal to the width of the upper base of the trapeziums of the four resilient elements. Flat resilient elements are coated with vibrodamping material, for example polyurethane.

EFFECT: higher efficiency of vibration isolation in resonance mode, simplified design and assembly.

2 cl, 2 dwg

Description

The invention relates to mechanical engineering, instrumentation and can be used for vibration isolation of technological equipment, machine tools, devices.

The closest technical solution to the claimed object is an elastic element according to the patent of the Russian Federation No. 2285831 F16F 7/00, 2006 (prototype) containing elastic flat elements made in the form of a spring suspension.

A disadvantage of the known device is the complexity of the elastic element and the lack of efficiency at the resonance due to the lack of damping.

The technical result is an increase in the effectiveness of vibration isolation in resonance mode and simplification of design and installation.

This is achieved by the fact that in a ring-type equal-frequency elastic element containing two elastic coaxially arranged rings: an external and an internal one, which are rigidly interconnected by means of flat elastic elements, elastic, coaxially arranged rings, an external and internal one, are interconnected by means of six flat elastic elements with the formation of recesses between them, and four elastic elements are arranged in pairs symmetrically relative to the horizontal axis of the outer and inner rings and have trapezoid cial shape, and two elastic elements are arranged radially along a vertical axis and have a rectangular shape, and the width of rectangle is equal to the width of these elements of the upper base trapezium of four elastic members.

Figure 1 presents a frontal section of an equal-frequency elastic element of the ring type, figure 2 is a top view of figure 1.

The ring-frequency elastic element contains two elastic coaxially arranged rings: external 1 (lower, larger diameter) and internal 2 (upper, smaller diameter), which are rigidly interconnected by means of six flat elastic elements 3, 4, 5, 6, 7, 8 with the formation of recesses 10, 11, 12, 13, 14, 15 between them. The inner ring 2 has a central hole 9 for attaching a vibration-insulated object (not shown), and the outer 1 is mounted on a base (not shown), which must be protected from vibration and shock. Moreover, the four elastic elements 3, 4, 5, 6 are arranged pairwise symmetrically with respect to the horizontal axis (Fig. 2 is a top view) of the outer 1 and inner 2 rings and have a trapezoidal shape, and two elastic elements 7, 8 are radially arranged along the vertical axis and have a rectangular shape, and the width of the rectangle of these elements is equal to the width of the upper base of the trapezoid of the four elastic elements 3, 4, 5, 6.

In this case, the flat elastic elements are coated with a vibration damping material, for example polyurethane (not shown).

The surfaces of the rings, external and internal, are covered with vibration-damping material, while the surface of the rings in contact with the base is coated on the outer ring, and the surface facing the vibration-insulated object (not shown) is coated on the inner ring.

The equal-frequency elastic element of the ring type operates as follows.

With vibrations of a vibration-insulated object installed through the hole 9 on the inner ring 2, spatial vibration protection and shock protection are provided. In addition, the vibration protection system is equally frequency-controlled, since during loading, first, sediment of rectangular elastic elements 7, 8 occurs, and then elastic elements 3, 4, 5, 6 of trapezoidal shape come into operation.

Claims (2)

1. The equal-frequency elastic element of the ring type, containing two elastic coaxially arranged rings: external and internal, which are rigidly interconnected by means of flat elastic elements, characterized in that the elastic coaxially arranged rings, external and internal, are interconnected by six flat elastic elements with the formation of recesses between them, and four elastic elements are arranged in pairs symmetrically relative to the horizontal axis of the outer and inner rings and have a trapezoid th shape, and two elastic elements are arranged radially along a vertical axis and have a rectangular shape, and the width of rectangle is equal to the width of these elements of the upper base trapezium four resilient elements, wherein the flat resilient members are covered vibration damping material such as polyurethane. 2. The equal-frequency elastic element according to claim 1, characterized in that the surfaces of the rings, external and internal, are coated with vibration damping material, while the outer ring has a surface in contact with the base, and the inner ring has a surface facing the vibration-insulated object.

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