RU127846U1 - SHOCK ABSORBER - Google Patents

Abstract

A shock absorber comprising a cable elastic-damping element, support elements, means for installing and attaching a shock absorber on one side to a vibroinsulated object, and on the other hand, to a base, characterized in that the shock absorber has the form of a lattice formed by a serpentine-shaped solid cable elastic-damping element, the support elements are made of two, external and internal, planks, planks are made with means for installing the cable in the form of semicircular transverse grooves, means of fixation and fastening.

Description

The utility model relates to devices for softening impacts in the construction of machines and structures in order to protect against shock and heavy loads. The shock absorber can be used as a vibration-isolating support (element of a prefabricated vibration isolator) and non-support (element of a prefabricated coupling, suspension of pipelines, an emphasis, a damper of lateral and longitudinal vibrations, elastic elements of couplings, etc.) of elastic-damping communication of objects in any technical field.

Known shock absorber described in the American journal "Disel Progress" No. 11 for 1985, p. 44-47 [Disel Progress No. 1, 1985, p. 44-47], which contains an elastic element of one or two pieces of steel cable in in the form of a spiral divided symmetrically into two identical parts with an inclination to a vertically transverse plane forming a round body - a straight or elliptical cylinder, two pairs of (external - supporting internal - clamping) metal plates with transverse semicircular grooves on the inner surfaces and vertical holes, of which, namely, two adjacent middle and steel through one are used to fix the turns, and the free ones on the one hand - the upper movable pair of plates - for fastening to a vibration-insulated object, and on the other - to the foundation (base).

The disadvantages of the known shock absorber are:

1. The complexity of the design;

2. The lack of reliability of the elastic cable element of the pieces of the cable.

3. The inability to adjust the characteristics of the shock absorber without changing the design;

4. Not versatility.

Also known shock absorber according to the patent of the Russian Federation No. 2086826, class. F16F 7/14, 1997 (prototype), comprising a resilient element of arcuate lengths of wire along the planks, and means for attaching the ends of the wire to planks.

The disadvantages of the known shock absorber are:

1. The lack of reliability of the elastic element containing pieces of a steel cable.

2. Limited ability to adjust characteristics.

3. Not versatility.

4. Not maintainability.

The technical results of this utility model are:

1. High reliability.

2. The ability to adjust the characteristics.

3. Versatility and maintainability.

These technical results are achieved by the fact that:

The grating-shaped shock absorber contains a single serpentine element and supporting elements.

Each supporting element consists of an outer and an inner pressure plate. Supporting elements are made with means for fastening the cable, as well as means for fastening on one side to a vibration-insulated object, and on the other, to the base.

These design features provide the ability to mount the strips on the hinges with adjustable distance.

For maximum compliance, the support elements are installed along the edges close to the hinges, and for the minimum - set at the minimum - design distance.

In addition, the adjustment of the characteristics is also possible by reducing the number of cable rods of the elastic element. For this, it is enough, for example, to release and remove the loop (hook) from the supporting elements of the shock absorber.

These features provide the ability to adjust the characteristics of the shock absorber, its versatility, maintainability, as well as the reliability of the shock absorber.

The utility model is illustrated by drawings,

where figure 1 shows the shock absorber assembly,

figure 2 is a view along aa of the support element

figure 3 is one of the options for adjusting the characteristics of the shock absorber i.e.

moving and fixing the support element to an arbitrary length of the working wire rods,

figure 4-6 some examples of the installation of shock absorbers 1 under the object 6.

The shock absorber consists of a serpentine (hereinafter referred to as the "coil") solid cable elastically damping element 1 (Figs. 1, 3-6), outer 2 (Figs. 1, 2) and internal - clamping 3 (Figs. 1, 2) supporting plates element, fastening means 4 ends of the cable 5, for example, screws.

Means for installation (placement) of the cable is made in the form of semicircular transverse grooves C, D located on the inner opposite planes of the outer 2 and inner - clamping 3 plates (Fig.1, 2).

The holes E and F on the plates 2 and 3 are intended for fastening the shock absorber on the one hand to the vibration-insulated object 6 (Figs. 4-6), and on the other, to the base.

The shock absorbers in figure 4 are installed at angles at an angle, and in figure 6 horizontally, in which the cable rods are straight.

The depreciation system of the object of FIG. 5 differs from FIG. 4 in that the elastic damping cable elements are installed curved in a semicircle. As the vibration-insulated object 6 can be, for example, an electronic unit or other sensitive equipment in any technical field.

Under the conditions of vibration and linear impacts on the object 6, its performance is ensured by the elastic-damping properties of the cable elements 1 (Fig. 1, 3-6).

During the operation of the shock absorber, damping is achieved both by friction of the strands of the cable, and structural damping.

From the presented three fastening schemes (Figs. 4-6), it can be seen that when using the same shock absorbers, but with different types of fastening, the most effective elasticity for a particular object can be achieved. For example, the most elastic depreciation scheme for object 6 is shown in FIG. 5, then the diagrams in FIGS. 6 and 4 follow.

The possibilities of directly adjusting the shock absorber characteristics by changing the length of the working part of the rope elements are also very important (Fig. 3). To do this, it is enough to unscrew the fastening means 4 and move one of the supporting elements 2, 3 forward or backward in the direction of the cable rods (Fig. 3). In addition, the adjustment of the characteristics is also possible by reducing the number of cable rods of the elastic element 1. For this, it is enough, for example, to release and remove the loop (hook) B (Figs. 1 and 2) from the supporting elements 2 and 3.

These features provide the ability to adjust the characteristics of the shock absorber, its versatility, maintainability, as well as the reliability of the shock absorber.

Claims (1)

A shock absorber comprising a cable elastic-damping element, support elements, means for installing and attaching a shock absorber on one side to a vibroinsulated object, and on the other hand, to a base, characterized in that the shock absorber has the form of a lattice formed by a serpentine-shaped solid cable elastic-damping element, the support elements are made of two, external and internal, planks, planks are made with means for installing the cable in the form of semicircular transverse grooves, means of fixation and fastening.

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