SU1551867A1 - Vibration-proof device - Google Patents

Abstract

The invention relates to mechanical engineering and is intended to relieve spatial transport dynamic loads. The aim of the invention is to increase the efficiency of low-frequency spatial vibration protection by reducing the torsional and linear rigidity of the device. The additional elastic element is designed in the form of a separator, which consists of concentrically located inner 2 and outer 3 rings, with segment holes 8 on the inner ring 2, and elastic beams 5 fixed on the outer 3 to interact with rolling bodies 4. The main elastic element 1 is made in the form of a three-layer spherical segment with segmented cuts. Due to this, the device suppresses not only longitudinal and transverse oscillations, but also torsional vibrations, with minimal weight and dimensions. 1 hp f-ly, 4 ill.

Description

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The invention relates to mechanical engineering and is intended to relieve sporadic transport dynamic loads.

The aim of the invention is to increase the efficiency of low-frequency spatial vibration protection by reducing the torsional and linear rigidity of the device with optimal dimensions.

1 shows a vibration-insulating device, a general view; FIG. 2 is a section A-A in FIG. 1; FIG. 3 shows a section BB in FIG. in fig. 4 - additional-} 5th resilient element, general view. The vibration isolating device comprises a main elastic element 1 providing elasticity in a vertical direction, an additional elastic element including inner 2 and outer 3 rings, rolling bodies 4 and sinusoidally curved elastic beams 5 fixed in pairs so that one end of the beam is fixed in a cylindrical key 6, and the other on the outer ring 3 using clamps 7. The paired beams 5 continuously interact with the rolling bodies 4. In the inner ring 2 are made. segment wells 8 for interacting with rolling bodies 4.

In addition, the anti-vibration device contains a base 9, rigidly connected with the inner ring 2 and coaxial to it, while the base 9 is supported through the balls 10, enclosed in separators 11, on disks 1 2 and 13, which are rigidly connected to each other with outer ring 3, and in the disk 12 there are windows 14 in which articulated rods 15 are placed to connect the base 9 with the main outer element 1, which can be made as a three-layer spherical segment with segment cuts made on the surface of the segment at equal corner marketing intervals.

Anti-vibration device operates as follows.

The vertical vibrations of the object are extinguished due to the elastic bending-shear deformations of the main elastic element 1. Vibration protection in radial directions is carried out by elastic beams 5. The force from the object is transmitted to the base 9, which can move in radial directions.

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directions x-, resting on the balls 10; Together, the base moves the rolling roll 4, which presses on the elastic beams 5 in the region of their attachment to the key 6, causing deformation of the paired beams 5, which dampen the vibration.

In addition, large oscillations around the axis 7 are also extinguished due to the operation of the paired elastic beams 5: the oscillations are transmitted through the main elastic element 1 and the articulated rods 15 to the base 9, which, together with the rolling bodies 4, rotate around the axis 7 10 of the rolling body, and presses on one of the paired beams 5, when this occurs a moment of elastic restoring force relative to the center 0 of the base 9,

Claims (2)

1. A vibration-insulating device containing a main and additional elastic elements providing elasticity in three mutually perpendicular directions and interconnected by a base supported through balls enclosed in separators on disks rigidly interconnected, characterized in that In order to increase the efficiency of low-frequency spatial vibration protection by reducing torsional and linear stiffness with optimal dimensions, the additional elastic element is designed as a separator consisting of concentrically arranged rings, rolling bodies, keys and sinusoidally curved elastic beams arranged at equal angular intervals, the inner ring rigidly connected to the base and made with segmental holes to interact with the rolling bodies, the outer ring is rigidly connected to the disks, elastic ba The pairs are fixed in pairs with one end in a key, and the other on the outer ring for continuous interaction with the rolling bodies, and the rings are aligned coaxially with the base. 2. The device according to p. Is distinguished by the fact that the main elastic element is designed as a three-layer spherical segment with segment cuts made on the surface of the segment at equal angular intervals. 15 b 14 AT 3 I U / g7 /////////// Л / 777 ////// UH /// L ///////////// Л g FIG. ///////////// Л /// L / / 3 g Fi & W 3 Fig.b