CN202176660U - Axial low-thickness three-way vibration isolating device - Google Patents
Axial low-thickness three-way vibration isolating device Download PDFInfo
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- CN202176660U CN202176660U CN2011202995181U CN201120299518U CN202176660U CN 202176660 U CN202176660 U CN 202176660U CN 2011202995181 U CN2011202995181 U CN 2011202995181U CN 201120299518 U CN201120299518 U CN 201120299518U CN 202176660 U CN202176660 U CN 202176660U
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- vibration isolator
- vibration isolating
- bonnet
- mandrel
- shell
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Abstract
The utility model belongs to a vibration isolating and buffering device used for airborne electronic equipment and relates to an axial low-thickness three-way vibration isolating device. The axial low-thickness three-way vibration isolating device comprises an installation core shaft, an upper baffle plate, a back cover, an outer shell, a metal wire mesh gasket and a lower baffle plate, wherein the metal wire mesh gasket is arranged on the installation core shaft, the upper baffle plate and the lower baffle plate are arranged at two sides of the metal wire mesh gasket, and the metal wire mesh gasket is fixed and enclosed in a cavity by the back cover and the outer shell, wherein the cavity is formed by the back cover and the outer shell. A clamping groove which is embedded with a clamp ring is arranged in the installation core shaft, the clamp ring is an opening ring which is made of spring steel and is arranged in the clamping groove of the installation core shaft in an embedding way, and the upper baffle plate is flush with the lower edge of the clamping groove. The vibration isolating device adopts a single-gasket symmetrical compression structure, a certain rigidity is provided to the vibration isolating device by utilizing the bending deflection of a metal wire, damping is provided by the friction among the metal wires, thereby realizing the vibration isolation to equipment, the axial geometric dimension of the vibration isolating device is greatly reduced, and the vibration isolating device can meet the vibration isolating requirement in narrow space only with 12 mm in an axial direction and has a higher practical application value.
Description
Technical field
The utility model belongs to a kind of vibration isolation, damping device that is used for air environment, relates to a kind of axially low thickness three-dimensional vibration isolator.
Background technique
The common employing when design of existing wire gaze vibration isolator arranges vertically that the structural type of upper and lower two wire gauze pads provides that this side up subtracts the vibration isolation effect.Since the wire gauze pad be designed with minimum dimension restriction, the vibration isolator axial dimension of this structural type just is difficult to reduce after less than 20mm, then has very much in limited time when equipment vibration isolation installing space, the type vibration isolator can't meet the demands.Special existing technology wire gaze vibration isolator can't be used for the vibration isolation that installing space is lower than the airborne equipment of 15mm.
Summary of the invention
The purpose of the utility model is: a kind of axially low thickness three-dimensional vibration isolator that can satisfy the installation space size requirement is provided.
The utility model technological scheme is: a kind of axially low thickness three-dimensional vibration isolator; It comprises installs mandrel, upper stop piece, bonnet, shell, wire gauze pad, lower stop piece; Wherein, The wire gauze pad is arranged on to be installed on the mandrel, and both sides are provided with washer and lower gear plate, are fixing and be encapsulated in the inside cavity that the two forms by bonnet and shell.
Have the draw-in groove that is embedded with snap ring in the said installation mandrel, said snap ring is the trip ring processed by spring steel, embeds in the draw-in groove that mandrel is installed, and makes upper stop piece equal with the draw-in groove lower edge.
Said shell is a circular cylindrical cavity, and its top has the circular hole that the inwall that is used to connect bonnet is provided with internal thread; Said bonnet is the peviform cylindrical housings, and bottom center has attachment hole, and these attachment hole both sides are opened two and are used for fastening symmetrical aperture, and said back decorative cover week is for being used for the outside thread that is connected with shell.
It is the installation pretightening force of 1mm that described wire gaze spacer has assembling front and back thickness difference.
The coiling of wire gauze pad is even, is homogeneous quality and distributes.
It is the helical thread portion that is connected with equipment that the mandrel upper end is installed, and the lower end is a T shape platform structure, and circular end surface is opened a word spiral shell cutter groove.
Described cylindrical cavity is formed through being threaded by shell and bonnet, and the mounting core shaft head stretches out cover top portion.
The utility model beneficial effect is: the axially low thickness three-dimensional vibration isolator of the utility model is owing to adopted single structure of pad type; The wire gaze envelope is pressed in the space of a fixed dimension; The relative movement meeting of any end drives catch and comes the distortion of compressed metal mesh pad, through such structure, under alternate load effects such as vibration; The stressed back of wire gauze pad all can produce certain elastic deformation on above-below direction; Utilize bending deflection wiry certain rigidity to be provided, and friction provides damping between the utilization silk, thereby realize vibration isolation equipment for vibration isolator.And structures such as snap ring, T stage, upper and lower catch have been used in this vibration isolator structure; Effectively saved the axial space of vibration isolation element; Dwindle the vibration isolator axial dimension, under the prerequisite that ensures other performance index, effectively saved the axial space of vibration isolation element; Dwindled the vibration isolator axial dimension; Can satisfy the vibration isolation requirement that the 12mm small space is axially only arranged, solve certain airborne infrared detecting equipment and need carry out vibration isolation installation and design problem, have bigger actual application value because of the airborne circumstance requirement., but it is at the installing space that 12mm is axially only arranged, and existing vibration isolator can't satisfy the bulk requirement of harshness like this.Adopt novel single gauze pad symmetric comprossion type structure
Description of drawings
Fig. 1 is the axially structural representation of low thickness three-dimensional vibration isolator of the utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the axially assembling schematic representation of low thickness three-dimensional vibration isolator of the utility model,
Wherein, mandrel 1, snap ring 2, upper stop piece 3, bonnet 4, shell 5, wire gauze pad 6, lower stop piece 7 are installed.
Embodiment
Through embodiment the utility model is done further explanation below:
The utility model is that a kind of relatively stricter equipment of air environment, infrared equipment and other space mounting position limit that is applicable to is installed the three-dimensional vibration isolator of usefulness.The axially low thickness three-dimensional vibration isolator of the utility model is divided into several sections such as shell, bonnet, installation mandrel, vibration insulation structure.
Please consult Fig. 1, Fig. 2 and Fig. 3 simultaneously, wherein, Fig. 1 is the axially structural representation of low thickness three-dimensional vibration isolator of the utility model; Fig. 2 is the A-A view of Fig. 1; Fig. 3 is the axially assembling schematic representation of low thickness three-dimensional vibration isolator of the utility model.The axially low thickness three-dimensional vibration isolator of the utility model comprises installs mandrel 1, snap ring 2, upper stop piece 3, bonnet 4, shell 5, wire gauze pad 6, lower stop piece 7.Wherein, said shell 5 is a circular cylindrical cavity, and its top has the circular hole that the inwall that is used to connect bonnet 4 is provided with internal thread.Said bonnet 4 is the peviform cylindrical housings, and bottom center has attachment hole, and these attachment hole both sides are opened two and are used for fastening symmetrical aperture, and said 4 circle weeks of bonnet are outside thread, is used for and being connected of shell 5.Said installation mandrel 1 exceeds shell 5 cavity top 10mm and is used for being connected of airborne equipment and vibration isolator; Installation mandrel 1 in vibration isolator is equipped with snap ring 2, upper stop piece 3, wire gauze pad 6 and lower stop piece 7 from top to bottom successively; In cavity, formed vibration insulation structure with wire gauze pad 6 upper and lower symmetries; And said upper stop piece 3 and lower gear plate 7 consistent size, the outer end is the lateral vibration displacement amount apart from cavity inner wall 2.5mm.The circular cylindrical cavity that the two formation was fixed and be encapsulated in to whole vibration insulation structure by bonnet 4 and shell 5 is inner.
The pad is made of fine wire mesh cold drawn chrome-nickel wire or textile made of manganese alloy wire Nai and die inside to the desired shape and size pressed together, the metal mesh pad thickness difference before and after the assembly 1mm, in order to ensure a certain degree of vibration isolators installed preload, wire mesh pad wound evenly, macroscopically showed a uniform mass distribution.Said upper stop piece 3 plays unidirectional position-limiting action to the wire gauze pad respectively with lower stop piece 7, has increased the compression area of wire gauze pad simultaneously, also the wire gauze pad is encapsulated in all metal construction preferably.Said snap ring 2 is the trip rings processed by spring steel; Embed in the draw-in groove that mandrel 1 is installed; Make upper stop piece equal with the draw-in groove lower edge, snap ring 2 drives upper stop piece 3 when mandrel 1 being installed moving downward and moves downward extrusion metal mesh pad 6 and produce distortion and play restriction upper stop piece 3 and install between the mandrel 1 in axial unidirectional relative displacement effect.It is the main movement parts in the vibration isolator structure that mandrel 1 is installed, and is connected with equipment through the upper end helical thread portion, vibrates with equipment, and the lower end is a T shape platform structure, and circular end surface is opened a word spiral shell cutter groove, and vibration isolator and equipment is fastenedly connected when being convenient to install; The T type boss that mandrel 1 is installed drives upwards extrusion metal mesh pad 6 of lower stop piece 7, and wire gauze pad 6 produces distortion because of the other end restriction, and the elasticity when realizing moving up and down connects; Bonnet 4 is the dome that round mouth is opened in a bottom, be connected with shell 5 through the border outside thread, bottom port be designed be convenient to install usefulness to hole structure, it is fastening to utilize special tool that inside and outside shell is connected during installation; Shell 5 bottoms are the rectangular platform of an elongation, longitudinally are evenly distributed with four tapped holes, are used for the connection of vibration isolator on the basis.
In this mode of execution, said axially low thickness three-dimensional vibration isolator installation process is following:
(1) successively lower stop piece 7, wire gauze pad 6 and upper stop piece 3 are packed into from the top that mandrel 1 is installed; Be compacted to below the draw-in groove position, stage casing; Again snap ring 2 from being installed, the mandrel top is loaded to the draw-in groove position; With pliers snap ring 2 is clutched and to be snapped in the draw-in groove, make upper stop piece 3 upper-end surfaces parallel with draw-in groove bottom;
(2) with the above-mentioned structure bonnet 4 of packing into that assembled; Guarantee that upper stop piece 3 upper ends are concordant with bonnet 4 upper edges; Again that bonnet 4 is inner together with pack into the circular cylindrical cavity of shell 5 of miscellaneous part; Utilize special tool through bonnet 4 two bottom sides apertures that being threaded of the two is fastening, then this type vibration isolator assembling is accomplished.
When (three) vibration isolator being installed, utilize installation mandrel 1 front end helical thread portion that vibration isolator is connected with equipment; Utilize four bolts hole on the outer casing bottom rectangular platform again, vibration isolator is installed on the housing construction together with equipment through 4 bolts connections.
The axially low thickness three-dimensional vibration isolator of the utility model is at a distance from being main vibration isolation element with wire gauze pad 6, and said installation mandrel 1, snap ring 2, upper stop piece 3, lower stop piece 7 are moving element.At the vibration isolator axial direction, receive the oscillating load effect, when mandrel 1 being installed moving up and down with equipment; Utilize snap ring 2 and T type boss drive upper stop piece 3 and lower stop piece 7 motions, because shell 5 all has unidirectional position-limiting action with 4 pairs of two catch of bonnet, when installation mandrel 1 moves downward; Utilizing snap ring 2 to drive upper stop piece 3 moves downward; Because lower stop piece 7 is moved downward by bonnet 4 restrictions, so wire gauze pad 6 compressive deformations, and is as the same in the other direction; Provide thus and realize that the installation mandrel is connected in axial elasticity with external structure.At the vibration isolator lateral; When receiving lateral vibration with equipment, installation mandrel 1 does the time spent; Snap ring 2, upper stop piece 3 and catch 7 meeting radially to-and-fro motion thereupon, and ring-like wire gaze pad 6 distortion will be pushed in the stage casing of installation mandrel 1, realize installing mandrel 1 and be connected with the elasticity of outside mounting structure.Therefore, inner at vibration isolator, to install between mandrel and the outside mounting structure and realized axially being connected with the elasticity of side direction, vibration isolator has three-dimensional vibration isolation effect.
The rigidity of the utility model vibration isolator and damping are all provided by wire gauze pad 6; The rigidity effect as previously mentioned; And damping function mainly comes between the gauze pad inner wire frictional damping of motion each other and interlocks with the structure that screen net structure can't recover; The former belongs to the Coulomb damping concept field, accounts for main effect; The irrecoverable distortion of the macromolecular structure of the then similar viscoelasticity high damping material of the latter plays a secondary role; The transmission of the two common dissipates vibration energy.
Under identical physical dimension; Through the frame number of silk and the winding process of silk screen etc. on the density that changes wire gauze pad 6, diameter wiry, the unit area; All rigidity and the damping to wire gauze pad 6 has certain influence; Also can obtain the homologous series product of this type vibration isolator through these parameters of adjustment.In addition; Have under the situation about needing; When satisfying the bulk requirement,, can change the parameters such as internal diameter, external diameter and gauze pad thickness of endless metal mesh pad 6 through adjustment vibration isolator physical dimension; The adjustment of these parameters produces considerable influence to the rigidity and the damping of wire gauze pad 6 equally, also is some important parameters of design of vibration isolator.
In addition; Select snap ring 2 to be connected in the utility model to be to consider from the angle that reduces axial dimension with the draw-in groove of installation mandrel 1; Under the situation that bulk allows, also can select the Placement of nut and screw thread, can be through the pretightening force of adjustment nut location adjustment vibration isolator assembling.
Certain airborne infrared detecting equipment requires to carry out the vibration isolation installation and design because of airborne circumstance, but it is at the installing space that 12mm is axially only arranged, and existing vibration isolator can't satisfy the bulk requirement of harshness like this.Adopt novel single gauze pad symmetric comprossion type structure
The axially low thickness three-dimensional vibration isolator of the utility model is owing to adopted single structure of pad type; The wire gaze envelope is pressed in the space of a fixed dimension; The relative movement meeting of any end drives catch and comes 6 distortion of compressed metal mesh pad, through such structure, under alternate load effects such as vibration; Wire gauze pad 6 stressed backs all can produce certain elastic deformation on above-below direction; Utilize bending deflection wiry certain rigidity to be provided, and friction provides damping between the utilization silk, thereby realize vibration isolation equipment for vibration isolator.Make the axial physical dimension of vibration isolator reduce greatly; Under the prerequisite that ensures other performance index, effectively saved the axial space of vibration isolation element, dwindled the vibration isolator axial dimension; Can satisfy the vibration isolation requirement that the 12mm small space is axially only arranged, have bigger actual application value.
Claims (7)
1. one kind is axially hanged down thickness three-dimensional vibration isolator; It is characterized in that: comprise mandrel [1], upper stop piece [3], bonnet [4], shell [5], wire gauze pad [6], lower stop piece [7] are installed; Wherein, The wire gauze pad is arranged on to be installed on the mandrel [1], and both sides are provided with upper stop piece [3] and lower stop piece [7], fixes and be encapsulated in the inside cavity that the two forms by bonnet [4] and shell [5] again.
2. axially low thickness three-dimensional vibration isolator according to claim 1; It is characterized in that: have the draw-in groove that is embedded with snap ring in the said installation mandrel [1]; Said snap ring [2] is the trip ring processed by spring steel, embeds in the draw-in groove that mandrel [1] is installed, and makes upper stop piece equal with the draw-in groove lower edge.
3. axially low thickness three-dimensional vibration isolator according to claim 1, it is characterized in that: said shell [5] is a circular cylindrical cavity, its top has the circular hole that the inwall that is used to connect bonnet [4] is provided with internal thread; Said bonnet [4] is the peviform cylindrical housings, and bottom center has attachment hole, and these attachment hole both sides are opened two and are used for fastening symmetrical aperture, and said bonnet [4] circle week is for being used for the outside thread that is connected with shell [5].
4. according to each described axially low thickness three-dimensional vibration isolator of claim 1 to 3, it is characterized in that: it is the installation pretightening force of 1mm that said wire gaze spacer has assembling front and back thickness difference.
5. axially low thickness three-dimensional vibration isolator according to claim 4, it is characterized in that: the coiling of wire gauze pad is even, is homogeneous quality and distributes.
6. axially low thickness three-dimensional vibration isolator according to claim 5 is characterized in that: the helical thread portion of mandrel [1] upper end for being connected with equipment is installed, and the lower end is a T shape platform structure, and circular end surface is opened a word spiral shell cutter groove.
7. axially low thickness three-dimensional vibration isolator according to claim 6, it is characterized in that: described cylindrical cavity is formed through being threaded by shell [5] and bonnet [4], and the mounting core shaft head stretches out cover top portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202995181U CN202176660U (en) | 2011-08-18 | 2011-08-18 | Axial low-thickness three-way vibration isolating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202995181U CN202176660U (en) | 2011-08-18 | 2011-08-18 | Axial low-thickness three-way vibration isolating device |
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| Publication Number | Publication Date |
|---|---|
| CN202176660U true CN202176660U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202995181U Expired - Fee Related CN202176660U (en) | 2011-08-18 | 2011-08-18 | Axial low-thickness three-way vibration isolating device |
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| Country | Link |
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| CN (1) | CN202176660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727173A (en) * | 2013-11-29 | 2014-04-16 | 辽宁峰阁钛业集团有限公司 | Shaft end metal shock absorber |
| CN106895229A (en) * | 2015-12-18 | 2017-06-27 | 中国核动力研究设计院 | A kind of close-coupled vibration isolation position limiting structure for possessing three-dimensional limit function |
| CN112443610A (en) * | 2019-09-01 | 2021-03-05 | 辽宁同泽减震器有限公司 | Multidimensional metal shock absorber |
-
2011
- 2011-08-18 CN CN2011202995181U patent/CN202176660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727173A (en) * | 2013-11-29 | 2014-04-16 | 辽宁峰阁钛业集团有限公司 | Shaft end metal shock absorber |
| CN106895229A (en) * | 2015-12-18 | 2017-06-27 | 中国核动力研究设计院 | A kind of close-coupled vibration isolation position limiting structure for possessing three-dimensional limit function |
| CN112443610A (en) * | 2019-09-01 | 2021-03-05 | 辽宁同泽减震器有限公司 | Multidimensional metal shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Desheng non-standard equipment manufacturing Co., Ltd. Assignor: China Plane Intensity Research Institute Contract record no.: 2013610000016 Denomination of utility model: Axial low-thickness three-way vibration isolating device Granted publication date: 20120328 License type: Exclusive License Record date: 20130415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |