SU1670231A1 - Absorber - Google Patents

Abstract

The invention relates to mechanical engineering and is intended for the vibration isolation of instrumentation equipment. The aim of the invention is to increase the efficiency of vibration insulation due to the dissipation of the vibrational energy during friction of the disks of an elastic element both between themselves and on the tapered surfaces, as well as due to their bending. In the resonant mode, the edges of the disks 5, 6 of larger diameter are elastically bent by the supporting element 2. At the same time, the friction losses between the conical surfaces of the supporting element 2 and the edges of the elastic disks 4, 5, 6, as well as between the disks themselves due to their bending (" spring effect "). The increase in the amplitude of bending of the protruding edges of the disks 5, 6 leads to their contact with each other. Elastic discs begin to work in compression. The stiffness of the shock absorber increases dramatically. By selecting the diameters and thickness of the discs 3, 4, 5, 6, as well as making radial cuts along the perimeter of the discs, it is possible to change the rigidity of the shock absorber. 2 Il.

Description

1

The invention relates to mechanical engineering and is intended for: vibration isolation of instrumentation equipment.

The aim of the invention is to increase the vibration insulating efficiency by dissipating the vibrational energy during friction of the disks of the elastic element both among themselves and on the tapered surfaces, as well as due to their bending.

Figure 1 shows a shock absorber, longitudinal section; figure 2 - section aa in figure 1.

The damper contains at least one sleeve 1 with flanges to which the object to be protected is attached. The sleeve 1 covers the support element 2 attached to the base. The axial hole of the support element 2 is formed by counter-directed cones. The resilient element is assembled from discs 3-6 of different thickness and diameters, varying from the top of the cone to its base. Elastic discs 3-6 can be made with radial cuts.

The shock absorber works as follows.

In the resonant mode of the shock absorber, an increase in the amplitude of the relative displacement of the sleeve 1 and the support element 2 occurs. The edge of the disks 5 and 6 of larger diameter, protruding beyond the edges of the disks 3 and 4 of smaller diameter, elastically

the supporting element 2 is bent. In this case, the friction losses between the conical surfaces of the axial bore of the supporting element 2 and the edges of the elastic disks 4-6, as well as between the disks themselves due to their bending, increase. The amplitude of the bending of the protruding edges of the larger diameter disks leads to their contact between themselves. Elastic discs begin to work in compression. The stiffness of the shock absorber increases dramatically. When the shock absorber operates in non-resonant modes, the protruding edges of the disks experience only elastic deformation. Choosing diameters and thickness of disks 3-6. and also made radial cuts along the perimeter of the disks, it is possible to change the rigidity of the shock absorber.

Claims (1)

Claims of the invention: A shock absorber containing at least one sleeve with flanges on the ends, covering its support element, the axial hole of which is formed by oppositely directed cones, and an elastic element located between the conical surfaces and the sleeve, so that efficiency of vibration isolation; an elastic element is assembled from disks of different thickness and diameters varying from the top of the cone to its base. Compiled by M. Kochar and Tehred M. Morgenthal Proofreader O. Kravtsov Editor A.Lezhnina Order 2729 Circulation 396 Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow. Zh-35, Raushska nab., 4/5 Phie.1 Proofreader O. Kravtsov