RU70950U1 - SHOCK ABSORBER - Google Patents

Abstract

The proposal relates to shock absorber designs used in general engineering on various mechanisms. The shock absorber contains two main parts 1 and 2, forming its body, one part of which is fixed to the foundation 4, and the other part is connected to the shock-absorbing equipment; both parts 1 and 2 of the body are interconnected by shock absorbing elements 3 made of elastic toroidal mounted shells 8, worn on cylindrical rods 7, mounted symmetrically on the central cylinder 5; the movement of the housing parts 1 and 2 is carried out by applying load from the shock-absorbing equipment 10 or from the movable foundation, while to prevent the elastic shock-absorbing elements from being squeezed, the 8 housing parts have limit stops 12, and the free movement of one housing part to another is ensured by the gap provided between their walls 11, ensuring the parallelism of the walls of the parts of the shock absorber body, as well as the safety and durability of its shock-absorbing elements 8, which are expediently performed of ftorrezino-formation to improve oil resistance and other aggressive media. Fig. - 4 Forms. 3 p.

Description

The proposal relates to general engineering, in particular, to designs of shock absorbers designed to work in various mechanisms and various environments of use of mechanisms.

Currently, there are many fundamental directions for the development of shock absorber designs for various mechanisms, from which shock absorbers can be distinguished, containing a housing, load sensing elements, fasteners and auxiliary equipment of the housing / SU 534602, F16F 15/00, 02/12/1973; Industrial and construction equipment, M. - St. Petersburg, 2003. Sat. No. 3, p. 26-29. /.

Significant disadvantages of such shock absorbers are: the use of special alloys and friction materials to ensure the operation of equipment protected from vibrational loads, which increases their size, metal consumption and cost.

The closest in technical essence is a shock absorber containing a body of two parts, one of which is mounted on shock-absorbing equipment, and the other on the foundation, the body parts are interconnected by means of shock-absorbing elements / SU No. 711309, F16F 1/14, 05/07/1973. /.

Possessing certain advantages over analogues, this shock absorber also has a significant drawback consisting in limiting the amplitude of the selected vibrational loads, significant specific material consumption and high requirements for the strength characteristics of the body and elements of the shock absorber due to its fundamental design, which works on extreme loads on shock-absorbing elements and parts housing, which limits its technological application and narrows the scope of its use.

The technical task and the technological result of the developed shock absorber is to improve its operational characteristics

in amplitude and frequency of perceived loads; more reliable protection of depreciable equipment from regular and unforeseen loads, from loads applied in various directions, including in three mutually perpendicular directions.

This is achieved in the shock absorber due to the fact that its body is made of two parts, one of which is mounted on a mechanism that is protected from loads, and the other part is connected to the foundation, the parts are interconnected by means of shock-absorbing elements, while the part of the body fixed on the foundation, made in the form of a cylinder with a base in the form of a flange, on the cylinder, in a plane intersecting its axis, at least three cylindrical rods are rigidly and symmetrically fixed to each other, on each of which is installed toroidal shell-particle-absorbing, its inner wall connected with the rod wall and the other part of the housing, fixed on the amortized equipment covers toroidal elastic damping elements (shell) on their outer surfaces, and a gap between the housing parts.

At the same time, part of these shock-absorbing shells is made with a lower degree of elasticity than other shock-absorbing shells, due to their execution from a material that is more resilient.

On the parts of the body there are stops that limit the movement of these parts during emergency dynamic impacts on the shock absorber.

Figure 1 shows a General view of the shock absorber;

figure 2 and figure 3 - details of the elastic elements;

in FIG. - section of the shock absorber on the axis.

The shock absorber comprises a housing made of two parts 1 and 2 interacting with each other by means of the shock-absorbing elements 3 placed between them; part 1 of the casing is fixed on shock-absorbing equipment, the other part 2 is fixed on the foundation 4 and is structurally designed as a cylinder 5 with a base in the form of a flange 6, and in a plane intersecting with the axis of the cylinder 5 at least three cylindrical rigidly and symmetrically fixed to each other

a rod 7, on each of which a tightly elastic toroidal shock-absorbing shell 8 is installed, which is connected with its inner wall 9 on an adhesive basis tightly and motionlessly on the rod 7 on its wall, and the other part of the housing 1 is mounted on the shock-absorbing equipment 10 and covers these elastic elements -casing 8 on their outer surfaces, while between the parts of the housing 1 and 2 there is a technical gap 11 to prevent jamming and jamming of these parts during depreciation.

To be able to work under different conditions of loads in the shock absorber, part of the shells 8 is made with a lower degree of elasticity than the rest of the shells 8 due to the execution of shells of a material of different elasticities and degrees of elasticity, and to limit the movement of parts of the housing 1 and 2 during emergency dynamic loads on parts 1 and 2, stops 12 are installed, restricting the movement of these parts in excess of the set stroke during operation.

The shock absorber is as follows. Parts 1 and 2 of it are fixed, as indicated, on the shock-absorbing equipment and on the foundation (part 2); the application of the load from the equipment 10 to the shock absorber leads to compression of elastic toroidal resilient shock-absorbing shells 8, softening the dynamic and working loads on these shells and the entire shock absorber with its cylindrical rods 7 and the central cylinder 5, while the design of the shock-absorbing shells 8 and their fit on the rods 7 allows you to damp perceived vertical, inclined and horizontal loads, making this shock absorber more versatile and efficient compared to peers that only allow linear displacements with unidirectional linear loads, in addition, the proposed shock absorber has the possibility of wide regulation of perceived loads due to shells 8 of various degrees of elasticity.

Claims (3)

1. The shock absorber comprising a housing of two parts, one of which is mounted on the shock-absorbing equipment, and the other on the foundation, the housing parts are interconnected by means of shock-absorbing elements, characterized in that the housing part, mounted on the foundation, is made in the form of a cylinder with a base in the form of a flange, on a cylinder, in a plane intersecting with its axis, at least three cylindrical rods are fixed rigidly and symmetrically to each other, on each of which an elastic toroidal shock-absorbing shell is installed, with Nations Joint its inner wall fixedly the rod wall and the other part of the housing, fixed on the amortized equipment covers elastic cushioning toroidal shell at their outer surfaces, and a gap between the housing parts. 2. The shock absorber according to claim 1, characterized in that part of these shock-absorbing shells is made with a lower degree of elasticity than other elastic toroidal shock-absorbing shells, due to their execution from a material more resilient. 3. The shock absorber according to claim 1, characterized in that on the parts of the body there are stops, restricting the movement of these parts under emergency dynamic impacts on the shock absorber.