SU1420264A1 - Shock-absorber - Google Patents

Abstract

The invention relates to devices for protecting objects (electronic devices) from vibration. The aim of the invention is to increase the effectiveness of vibration damping. The shock absorber is made of a set of rods 1, strut elastic clamps 2, while the cross-section of each rod is a solid or hollow thin-walled equilateral triangle. 5 il.

Description

n

(L

3 y

to

O5

(puz.j

The invention relates to devices for the protection of objects (electronic devices) from the effects of vibration.

The aim of the invention is to increase the vibration damping efficiency by making a shock absorber from a set of rods mounted to the clamps.

FIG. 1 shows a shock absorber general view; in fig. 2 is a section A-A in FIG. in fig. 3 section bb n fig. one; in fig. 4 shows an embodiment of a cross section of an isotropic amortizer with curved yokes, with a single six axes with symmetry in FIG. 5 is one of the variants of the cross section of an anisotropic shock absorber with two axes of symmetry, and the rods constituting the set can be performed with both solid and triangular profi

The shock absorber contains a set of rods 1, strut clamps 2, located with a certain step along the length of the set. The cross section of each rod 1 is a solid or hollow thin-walled equilateral triangle. On one side of the set of rods 1 there is a base, with which the shock absorber is attached to the foundation, consisting of flanges 3, fastened with rivets 4 and fixed pin-sh 5. On the other side of the set of rods 1, a head 6 with an eye is placed.

The shock absorber works as follows; 1m.

When vibration is applied to the system, the shock absorber — the device oscillations transmitted to the device — is extinguished due to the friction of the lateral faces of the rods 1 during their deformation. Due to the large total contact area, the wear of the surfaces of the rods is minimized. From the rods with a triangular cross-sectional shape, it is possible to constrict dampers with different geometry of the sets and different elastic damping characteristics, Dp shock absorber, isotropic over all

five

five

0

five

0

possible bending directions, of triangular rods is a set that would have a cross section in the form of a convex polygon with a number of axes of symmetry greater than or equal to three. Examples of such sections are shown in FIG. four.

In cases where a shock absorber is required with a given degree of anisotropy of the elastic-damping characteristics in different directions of shock absorber bending, the section of the triangular elements is composed of a polygon set with a number of axes of symmetry less than three, i.e. with one or two axes of symmetry. The option is possible. when the set section has no axes of symmetry at all, but it is more difficult to make such a design variant. A set with a cross section with two axes of symmetry should be considered technologically more feasible for anis-1 ropal shock absorbers (Fig. 5).

With a vertical arrangement of a set of rods in a shock absorber and a large weight of a depreciable object, it is economically more feasible to make a set of rods with cross sections in the form of hollow thin-walled right triangles (Fig.7), since with the same areas of cross sections, and, consequently, metal consumption, a set of polish rods of a triangular profile has a much greater critical load than a set of solid rods.

Claims (1)

Invention Formula A shock absorber containing a set of rods retracted by elastic clamps, characterized in that, in order to increase vibration damping, the cross section of each rod is a solid or hollow thin-walled equilateral triangle. FIG. J FIG. 2 FIG. FIG. five