Combined vibroisolator with gauze damper

FIELD: machine building.

SUBSTANCE: vibration absorber consists of a casing and a resilient element from elastomer interacting with a unit. The housing is made as a sleeve resting on the upper end of resilient element, and the collars connecting by means of peripheral recess the housing with the base. The profile of lateral surfaces of elastomer is formed hyperbolic as a bar of equal resistance with a constant stiffness in axial and transversal directions. The gauze damper base is composed by the plate with mounting holes. Lower plate is connected with the base. Upper pressure plate is connected with central ring clamped by coaxial ring connected with the base. Between the lower end of the piston and bottom of the bush the polyurethane elastomer is located.

EFFECT: more efficient damping in resonance mode, simplified design and assembly.

4 cl, 1 dwg

 

The invention relates to mechanical engineering and can be used for isolation of process equipment, including devices and equipment.

The closest technical solution to the declared object is vibration absorber according to the patent of Russian Federation №2302566, F16F 15/06, comprising a housing and an elastic element made of elastomer, interacting with an object, the body is made in the form of a sleeve resting on the top end of the elastic element, and the ring which connects through a peripheral undercut case basis, and the profile of the side surfaces of the elastomer hyperbolic made in the form of beams of equal resistance with constant stiffness in the axial and transverse directions.

A disadvantage of the known device is the complexity of the hinged element and a lack of efficiency at resonance due to the lack of damping.

Technical result - increase the effectiveness of vibration isolation in a resonant mode and a simplified design and installation.

This is achieved by the combined insulator with mesh damper comprising a housing and an elastic element made of elastomer, interacting with an object, the body is made in the form of a sleeve resting on the top end of the elastic element, and the ring which connects through a peripheral undercut case basis, and profile b is the lateral surfaces of the elastomer hyperbolic made in the form of beams of equal resistance, with constant stiffness in the axial and transverse directions, and the base mesh damper is made in the form of a plate with mounting holes and mesh elastic element lower part rests n the base and fixed bottom washer rigidly connected with the base and the upper part of the fixed upper pressure plate rigidly connected to a centrally located piston covered with a gap, coaxially located sleeve rigidly connected to the base, and between the lower end face of the piston and the bottom of the liner is an elastomer, for example polyurethane.

The drawing shows a frontal section of a combined insulator with mesh damper.

Combined vibration absorber with mesh damper includes a housing, which is made in the form of a sleeve 1 with an opening 2, which is based on the top end of the elastic element 4 and the ring 5 shoulder 6 which connects through a peripheral undercut the housing base 10. The sleeve is made of the flange 3 to communicate with the elastomer. The profile of the side surfaces 8 and 9 of the elastomer hyperbolic made in the form of beams of equal resistance with constant stiffness in the axial and transverse directions. Ring 5 rests on the sleeve 7 for fastening the upper insulator.

Net damper comprises a base 10 in the form of a plate with mounting from what Artemi (not shown), mesh elastic element 13, the lower part resting on the base 10, and the fixed bottom plate 11 rigidly connected with the base 10, and the upper part of the fixed upper pressure plate 12 rigidly connected to a centrally located piston 14 covered coaxially located sleeve 15, is rigidly connected with the base 10. Between the lower end face of the piston 14 and the bottom of the sleeve 15 is located elastomer 16, for example polyurethane.

The density of the mesh structure elastic mesh element is in an optimal range of values: 1.2-2.0 g/cm3and the material elastic wire mesh elements - steel EI-708, and its diameter is optimum interval values 0,09-0,15 mm

The density of the mesh structure of the outer layers of elastic mesh element is 1.5 times the density of the mesh structure of the inner layers of elastic mesh element. Elastic mesh element 13 may be performed by a combination of mesh cage filled with elastomer, for example polyurethane.

Combined vibration absorber with mesh damper works as follows.

Fluctuations vibroisolating object elastic rubber element 4 takes the vertical load, thus weakening the dynamic effects on the overlapping buildings or on Board the aircraft. Horizontal oscillations of g which are due to unfettered location of the elastic element, that will give him a certain degree of freedom vibrations in the horizontal plane. The profile of the side surfaces 8 and 9 of the elastomer hyperbolic in the form of beams of equal resistance with constant stiffness in the axial and transverse directions, you can ensure ravnopravnosti and efficiency of rubber (elastomer).

Net damper works as follows.

Fluctuations vibroisolating object (not shown)located on the top cover of the washer 12, the elastic mesh element 13 takes both vertical and horizontal loads, thus weakening the dynamic impact on vibrotherapy object, i.e. provided the spatial and vibration protection shock protection.

1. Combined vibration absorber with mesh damper comprising a housing and an elastic element made of elastomer, interacting with the object, wherein the body is made in the form of a sleeve resting on the top end of the elastic element, and the ring which connects through a peripheral undercut case basis, and the profile of the side surfaces of the elastomer hyperbolic made in the form of beams of equal resistance with constant stiffness in the axial and transverse directions, and the base mesh damper is made in the form of a plate with the mounting holes, etc is what mesh elastic element lower part rests on the base and is fixed bottom washer, rigidly connected with the base and the upper part is fixed to the upper pressure plate rigidly connected to a centrally located piston covered with a gap coaxially located sleeve rigidly connected to the base, and between the lower end face of the piston and the bottom of the liner is an elastomer, for example polyurethane.

2. Combined vibration absorber with mesh damper according to claim 1, characterized in that the density of the mesh structure elastic mesh element is in an optimal range of values: 1.2-2.0 g/cm3and the material elastic wire mesh elements - steel EI-708, and its diameter is optimum interval values 0,09-0,15 mm

3. Combined vibration absorber with mesh damper according to claim 1, characterized in that the density of the mesh structure of the outer layers of elastic mesh element is 1.5 times the density of the mesh structure of the inner layers of elastic mesh element.

4. Combined vibration absorber with mesh damper according to claim 1, characterized in that the elastic mesh element is designed combination of mesh cage filled with elastomer, for example polyurethane.



 

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