Vibration isolator

FIELD: machine building.

SUBSTANCE: proposed device comprises barrel accommodating packs of elastic elements sequentially fitted therein. Barrel is made form elastic polymer and feature cylindrical top part and truncated cone bottom. Said packs are made from discrete raw animal material, for example, linter-feather mix. Gaskets made from elastic dense raw animal material, for example, leather or felt, are arranged between aforesaid packs. Barrel top part is closed by cover from slightly-elastic polymer provided with central hole arranged coaxially with barrel lengthwise axis.

EFFECT: higher damping properties.

1 dwg

 

The invention relates to vibration isolators and can be used in devices of the textile industry, as well as in household appliances, such as washing machines, refrigerators, etc.

Known vibration absorber, containing a hollow cylindrical rubber element and attached to its ends metal disks with a Central hole and radial grooves on the outer ends of each, equipped with valves installed in the holes of the disks [A.S. 1298444 the USSR, MCI F16F 3/08. Rubber vibration absorber / Nphparser, Punchana, Itsbase (USSR). No. 388609/25-28; Appl. 16.04.85; publ. 23.03.87, bull. No. 11. - 2 S.: ill.].

The disadvantage of this insulator is small damping capacity and complexity of manufacture.

Adopted as a prototype vibration absorber [A.S. 1737181 USSR, MKI 5 F16F 1/30. Elastic vibration absorber Kochetov / Oshkaderov. No. 4796437/28; Appl. 01.03.90; publ. 30.05.92, bull. No. 20. - 2 S.: ill.], containing the metal plate, sequentially installed elastic elements with a Central hole and a latch mounted in the part of the latter. In the metal plate is made conical hole coaxial with the hole package of elastic elements. The latch is installed in the Central part of the hole smooth part and has a threaded portion that engages with the smooth spherical part, p is Kodama through a conical hole, and vibration absorber provided with S-shaped arm, one end of which is threaded the hole for the threaded part of the locking mechanism and the other end is designed to communicate with the object.

The disadvantage is the lack of damping ability, the presence of vibration.

The technical result of the claimed invention is to increase the damping ability of the insulator to reduce dynamic loads on the Foundation side of the insulated object, reducing the vibration.

This technical result is achieved in that in the vibration damper containing sequentially installed packages elastic elements, according to the invention packages elastic elements placed in a glass made of elastic polymer and having the upper part of the cylindrical shape, and the lower truncated cone shape, with packages of elastic elements made of discrete animal sources, such as puhoperevyh mixture, and between packages elastic elements placed strip of elastic dense animal raw materials, such as leather or felt, while the upper part of the glass cover is closed from labelstring polymer with a threaded hole in the center, which is located coaxially to the longitudinal axis of the glass.

This technical result is achieved due to the fact that discrete animal syraucse absorbs vibration, than or artificial rubber, filler, consisting of discrete particles, provides the best offset layers of material in a horizontal plane, which provides additional energy dissipation. Strip between packages elastic elements made of elastic dense animal products for the best bias layers under vibration. The glass is made of elastic polymer and has the upper part of the cylindrical shape, and the lower truncated cone shape to increase the damping capacity, resistance and shape retention packages, and closed the lid of the weakly elastic polymer with a threaded hole to limit the packages above and mounting insulator to the insulated object.

Vibration absorber shown on the accompanying drawing.

Vibration absorber is made in the form of a glass consisting of the upper cylinder 1 and the bottom in the shape of a truncated cone 2 parts, made of an elastic polymer, a glass of sequentially installed packages elastic elements 3 made of discrete animal raw materials, in particular puhoperevyh mixture is divided into several layers of strips 4 of the elastic tight animal raw materials, such as leather or felt, and closed the lid 5 from labelstring material containing for fastening a threaded hole 6 in the center, which is located coaxially about Olney axis of the Cup.

The device operates as follows. Vibration absorber is installed under the legs vibroisolating object and is secured with a threaded hole, which is located coaxially to the longitudinal axis of the glass in the hole 6 of the cover 5. When working vibroisolating object fluctuations supports with legs moving to a vibration absorber, providing better damping capacity and reduced vibration due to the displacement of the layers of material in the form of discrete animal raw materials (puhoperevyh mixture) in packages of elastic elements in the horizontal and vertical planes and at the expense of bias not related to each other layers of packages elastic materials 3 sliding on the pads 4 of the elastic tight animal raw materials (leather or textile). The shape of the glass, consisting of the upper cylinder 1 and the bottom in the shape of a truncated cone 2 parts, made of elastic polymer, also provides the best damping ability, stability and maintains the shape of the packages.

Vibration absorber containing sequentially installed packages elastic elements, wherein the packets of elastic elements placed in a glass made of elastic polymer and having the upper part of the cylindrical shape, and the lower truncated cone shape, with packages of elastic elements made of discrete animal sources, such as pujo is erevos mixture, between packages elastic elements placed strip of elastic dense animal raw materials, such as leather or felt, while the upper part of the glass cover is closed from labelstring polymer with a threaded hole in the center, which is located coaxially to the longitudinal axis of the Cup.



 

Same patents:

FIELD: machine building.

SUBSTANCE: proposed damper 1 comprises hollow lengthwise part 2 to be deformed, part 3 coiling backward and attached to the end of aforesaid hollow lengthwise part. In compliance with first version, extending part is connected with coiling back part while hollow lengthwise part 2 is inclined to extending part. In compliance with second version, lengthwise axis of hollow lengthwise part 2 is inclined to lengthwise axis of transport facility. Coiling back part 3 is providing with mount 4. Perpendicular to plane 5 of mount attachment is inclined to lengthwise axis of hollow lengthwise part 2. Transport facility comprising described power damper comprises lining that forms guide surface for hollow lengthwise part 2. Method of fabrication of power damper includes the following operation: varying cross sectional width in some sections of tube from first cross sectional width to second one by forming hollow lengthwise parts with first and second widths, and contracting the tube.

EFFECT: simplified design, higher efficiency of damping.

17 cl, 16 dwg

FIELD: machine building.

SUBSTANCE: friction device comprises, at least, two elements 1, 5, one of which moves, or, potentially, may move relative to another one, driven by external force P. Relative displacement can cause relative displacement of two friction surfaces subjected to pressure forces to convert external force P into friction force and, thus, to adjust displacement of moving or potentially moving element. Pressure forces are created by pre-stressing appliances 17. Elements 1, 15 are designed to act on said pre-stressing appliances 17 to exploit developed effect of aforesaid relative displacement so as to reduced pressure forces. Friction damper of oscillations comprises aforesaid friction device.

EFFECT: possibility to adjust friction force irrespective of fraction factor of friction surfaces.

22 cl, 6 dwg

FIELD: mechanical engineering.

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EFFECT: dissipation of high impact energy and energy absorbing device construction simplification.

24 cl, 5 dwg

FIELD: machine building.

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EFFECT: simplified damping of vibrations.

2 cl, 3 dwg

FIELD: transport.

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EFFECT: simple design and reduced weight.

15 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to power-absorbing assembly 10 to be used integrated with UIC-buffer or side buffer 100. Said power-absorbing assembly 10 has main plate 2 to joint assembly 10 to support frame or chassis 101 of the main structure and, preferably, to allow its detachment, connection plate 1 whereto UIC buffer 110 may be connected, and protective power-absorbing element 3 to be arranged between main plate 2 and connection plate 1 to thrust there against, and with no play.

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14 cl, 3 dwg

Cable bumper // 2436000

FIELD: machine building.

SUBSTANCE: bumper consists of flexible element made of sections of steel cable of arc-shape. Sections are arranged in a row to the left and right along length of upper and lower bearing plates and are secured in them by means of straps. Vertices of arcs of sections face vertical axis of the bumper. Hydraulic dampers are fixed in the bearing plates along total length of the straps. Each damper is formed with two coaxial cylinder sleeves. A pressure tight circular cavity is formed between the external and internal sleeves. An upper part of the cavity is closed with a movable circular flange with packings along internal and external surfaces, while a lower one is closed with a circular washer. A circular piston with throttling orifices is arranged in the circular cavity. The piston is pivotally connected with the circular flange by means of at least three control rods; a spring rests on the circular flange. An upper base of the spring rests against a cover rigidly tied with a rod of the damper. The bush is rigidly connected with a cover and functions as a guiding device for the spring. The rod is installed coaxially to the sleeves. A lower end of the rod is connected with the vibration isolated object, while the upper one - with the cover.

EFFECT: raised efficiency of vibration insulation under resonance mode.

2 dwg

Damper // 2429394

FIELD: machine building.

SUBSTANCE: damper has elastic element positioned between two bases and friction pair. The first base is designed for connection with an object, while the second one is designed for connection with a source of vibration. A sensor of velocity is located on the first base and is connected to an input of a control unit. An output of the control unit is electrically coupled with an electro-magnet. The first part of the friction pair is made in form of a fork with straps on its ends. The fork is hinged on the first base. The second part of the friction pair is made in form of driving and driven pulleys connected with a flexible link. The driving pulley is mounted on a rotor of the electric engine secured on the second base. Axis of the driven pulley is installed on a bracket attached to the second base. The electro-magnet is fixed on the first base, while its core is hinged to a handle of the fork.

EFFECT: raised efficiency of vibro-protection.

4 dwg

Plastic damper // 2428601

FIELD: machine building.

SUBSTANCE: case of damper is made as cylinder cartridge with cover and bottom. The bottom of the case has a hole for securing a rod. End external surface of the bottom is equipped with a circular relieving groove. The rod is made in form of a cylinder rod whereon there are mounted a cutting section, a deforming element and an additional damping element. The deformed unit interacts with the deforming unit and internal wall of the case. The deformed unit is made in form of a set of coaxially arranged metal washers alternating so, that generatrix of internal surface of the set corresponds to a stepped curvilinear line equidistant to a profile of the deforming unit. The additional damping element is made in form of a cylinder casing enveloping core of the rod. The cylinder casing is equipped with circular flanges and with grooves arranged on its external surface.

EFFECT: increased specific power absorption and raised reliability and efficiency of damper.

4 cl, 4 dwg

FIELD: transport.

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EFFECT: safe attachment of aircraft onboard equipment.

9 cl, 33 dwg

FIELD: machine building.

SUBSTANCE: conic equi-frequent element is made as two internal and external flexible rings axially symmetrically arranged in parallel planes. The rings are rigidly interconnected by means of two symmetrical elastic and diametrically arranged elements with a through central slot symmetrically made inside the element. Side surface of the slot are conjugated on ends with surfaces created with through orifices on external and internal rings. Surfaces making the equi-frequent element are conic. Cavities formed with the flexible rings and symmetrical elastic diametrically arranged elements are filled with an elastic damping net element.

EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

2 cl, 2 dwg

FIELD: machine building.

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EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

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FIELD: machine building.

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EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

4 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: disk flexible element is made as two flat flexible internal and external rings coaxially arranged. The rings are positioned in parallel horizontal planes and are rigidly interconnected by means of two flexible elements. The flexible elements are radially arranged in horizontal plane at angle within ranges of 1080 in vertical plane. Cavities formed with the flexible rings and flexible radially arranged elements are filled with an elastic damping net element.

EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

4 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: disk equi-frequent element is made as two internal and external flexible rings axially and symmetrically arranged in parallel planes. The rings are rigidly interconnected by means of two symmetrical elastic and diametrically arranged elements with a through central slot symmetrically cut inside the element. The elements connecting internal and external rings have lines of curve and can be secured on the rings by welding, for example contact welding, of by means of fastening threaded elements or by glue connection. Cavities formed with internal and external rings are filled with damping net elements.

EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

2 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: conic equi-frequent element is made as two internal and external flexible rings axially symmetrically arranged in parallel planes. The rings are rigidly interconnected by means of two symmetrical elastic and diametrically arranged elements with a through central slot symmetrically made inside the element. Side surface of the slot are conjugated on ends with surfaces created with through orifices on external and internal rings. Surfaces making the equi-frequent element are conic. Cavities formed with the flexible rings and symmetrical elastic diametrically arranged elements are filled with an elastic damping net element.

EFFECT: raised efficiency of vibration isolation in resonance mode and simplification of design and assembly.

2 cl, 2 dwg

Vibration isolator // 2445527

FIELD: machine building.

SUBSTANCE: proposed device comprises barrel accommodating packs of elastic elements sequentially fitted therein. Barrel is made form elastic polymer and feature cylindrical top part and truncated cone bottom. Said packs are made from discrete raw animal material, for example, linter-feather mix. Gaskets made from elastic dense raw animal material, for example, leather or felt, are arranged between aforesaid packs. Barrel top part is closed by cover from slightly-elastic polymer provided with central hole arranged coaxially with barrel lengthwise axis.

EFFECT: higher damping properties.

1 dwg

FIELD: construction.

SUBSTANCE: flexible structural connection element comprises a body made of twisted and compressed steel strands. The curve of deformation dependence on stress in a twisted and compressed steel strand has a slope inclined zone A and a steep inclined zone B, and the specified body is used on the section in the steep inclined zone: B of the specified curve. The connection element is used for placement between adjacent parts of the structure for transfer of vertical or horizontal loads. The building module comprises the specified connection element.

EFFECT: possibility to use a connection element under high static and dynamic loads.

15 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: device includes a base, and guide and shock-absorbing devices. A stock is rigidly fixed in the bottom of a cylindrical sleeve with formation of a tight annular cavity. Bottom of the cylindrical sleeve is fixed in the sleeve rigidly attached to the base of a protected object. A spring is located in the annular cavity and supported with its lower end face from the bottom and with its upper end from the piston. The piston is made in the form of a disk and located with a throttling gap relative to the stock. A cover plate that is movable relative to the stock is located in upper part of the stock. Cover plate consists of an annular flange with a seal and a sleeve rigidly attached to the flange and enveloping the outer surface of a cylindrical sleeve through the seal. Spring is located coaxially to the stock and its upper end face is supported from the cover plate and its lower end face is supported from the piston. A supporting element of the vibroisolated object is fixed on the cover plate. On the sleeve flange there rigidly fixed is an elastically damping device consisting of lower and upper support flanges of a plate type. Elastically damping element made from twisted wire of thread waste type is located between flanges. Upper threaded end of the stock is connected to a threaded hole in upper supporting flange. In the elastically damping device there is a through central hole for passage of the stock.

EFFECT: higher vibration isolation efficiency.

1 dwg

FIELD: machine building.

SUBSTANCE: vibration isolator includes housing with flange for its attachment to support, elastic bushings made from wire material of metal rubber, central bushing and attachment parts. Central bushing is made in the form of hollow cylinder-buffer consisting of cylindrical and conical parts. Inside cylinder-buffer there located is one or two compression springs that, in non-loaded state of vibration isolator, press the buffer with low force to upper shock-proof pad built in the cover. Cover is fixed on housing with screws and nuts. Damping cassettes are installed on each other in housing. Each cassette consists of housing, cover put on housing, elastic hysteresis element made in the form of bushing and composed of individual sectors-pushers of ring with central conical hole. Cover and bottom of cassette housing serve as guides at radial working offsets of pushers. The second shock-proof pad is fixed at vibration isolator housing bottom. Spacer plate that presses cassettes to each other is installed between upper cassette and upper pad.

EFFECT: improving vibration isolating properties and durability, and simplifying vibration isolator maintenance.

6 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: invention refers to machine building industry. A vibration isolator includes a housing, two conical elastic sleeves arranged in it and made from wire material of metal rubber, a cover, a tightening element arranged in the central hole of sleeves and the cover and fastening parts. The housing is arranged inside a compression spring with a radial gap. The spring is supported from the housing flange and the vibration isolator bottom and rigidly fixed on them by means of covers composed of two semi-rings. A cylindrical wall of the housing projects on both sides of its conical base. The tightening element is made in the form of a hollow cylinder with a round conical flange. A flat supporting platform with central and threaded holes is made on outer surface of the flange. The tightening element is arranged in central holes of elastic sleeves. The conical cover is aligned on a smooth cylindrical part of the tightening element. An external support surface of the cover is flat. A round nut, under which elastic and lock washers are installed, is screwed on a threaded end of the tightening element. An unloading spiral compression spring with high flexibility is arranged inside the tightening element. A shock-proof cushion made from metal rubber material is fixed at the bottom of the tightening element.

EFFECT: improving vibration isolating properties and durability, and simplifying vibration isolator maintenance.

2 cl, 5 dwg

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