CN104455195B - The multidirectional vibration isolator of all-metal - Google Patents
The multidirectional vibration isolator of all-metal Download PDFInfo
- Publication number
- CN104455195B CN104455195B CN201410778330.3A CN201410778330A CN104455195B CN 104455195 B CN104455195 B CN 104455195B CN 201410778330 A CN201410778330 A CN 201410778330A CN 104455195 B CN104455195 B CN 104455195B
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- Prior art keywords
- damping
- vibration isolation
- vibration
- elastic
- isolation unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The multidirectional vibration isolator of a kind of all-metal that the present invention proposes, including the boss support all around protruded around hollow out edge plane, it is placed in the vibration damping in described boss support hollow out framework and connects box and the elastic vibration isolation unit connected firmly on described boss support (1), wherein, elastic vibration isolation unit is by being arranged in damping cylinder (3), axially connect the damping slide block (8) of volute spring (4) and the bolt axially through damping collet chuck plate forms, described bolt passes through volute spring open top, spring collar (6) and described clamping plate connect firmly on the side plane that vibration damping connects box (10), described elastic vibration isolation unit in the circumferential, connects firmly on the side plane that vibration damping connects box around boss support boss side plane, forms one and points to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space. the present invention well solve the independent components and parts of electronic equipment internal in space the problem of any one direction vibration isolation. there is stable integral vibration isolation performance and significantly high functional reliability.
Description
Technical field
The present invention relates to a kind of vibration isolator being mainly used in the independent components and parts of electronic equipment internal are locally isolated extraneous vibration, especially a kind of multidirectional integral vibration isolation device of all-metal.
Background technology
The independent components and parts of electronic equipment internal are carried out the vibration isolator that locally vibration isolation adopts by prior art and is mainly rubber shock absorber or steel-wire isolator. The vibration isolator that rubber shock absorber rubber is made. The great advantage of rubber shock absorber is to have enough internal dampings, it is adaptable to the situation that dynamic displacement is of short duration but very big though static displacement is little, and can make variously-shaped, to adapt to the requirement in space. Rubber shock absorber is when the components and parts that weight is only small carry out vibration isolation, and owing to being subject to the restriction of material behavior, the natural frequency of itself is higher, and integral vibration damping effect is undesirable, does not often reach damping requirements, and can be aging, produces creep. Steel-wire isolator is a kind of typical nonlinear isolation device, and its dynamic stiffness can only reflect performance during low frequency, there is very big wave phenomenon at high frequency treatment impedance curve, and this is that the high frequency standing wave phenomena produced by metal material in steel-wire isolator causes. Steel-wire isolator is to form with a rustless steel steel wire rope coiling, and wirerope diameter number of share of stock, length, the number of turns, canoe and tightness are depended in its rigidity and damping, and damping characteristic is relevant with vibration isolator deformation.Dry friction occurs between each stock of cord when vibration isolator amplitude is sufficiently large, and now dry-friction damping is big. Being shown by steel-wire isolator mechanical impedance analysis, owing to itself damping of steel-wire isolator is less, the resonance transport of whole system is bigger, it is impossible to realize components and parts are carried out desirable vibration isolation. Above-mentioned prior art vibration isolator often can only the vibration damping in the comparatively ideal one-dimensional direction of solution vibration insolation means, and can not desirable solve the independent components and parts of electronic equipment internal in space the problem of any one direction vibration isolation.
Summary of the invention
It is an object of the invention to the weak point existed for above-mentioned prior art, a kind of overall structure compact dimensions is provided, relatively low natural frequency can be realized, can all have again the multidirectional vibration isolator of all-metal of rational damping characteristic in a plurality of directions, with solve the independent components and parts of electronic equipment internal in space the problem of any one direction vibration isolation.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that a kind of multidirectional vibration isolator of all-metal, including the boss support all around protruded around hollow out edge plane, it is placed in the vibration damping in described boss support hollow out framework and connects box and the elastic vibration isolation unit connected firmly on described boss support 1, it is characterized in that: elastic vibration isolation unit is by being arranged in damping cylinder 3, axially connect the damping slide block 8 of volute spring 4 and the bolt axially through damping collet chuck plate forms, described bolt passes through volute spring 4 open top, spring collar 6 and described clamping plate connect firmly on the side plane that vibration damping connects box 10, described elastic vibration isolation unit in the circumferential, connects firmly on the side plane that vibration damping connects box around boss support 1 boss side plane, forms one and points to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space.
The present invention has the advantages that compared to prior art.
Overall structure compact dimensions. The present invention adopts the boss support all around protruded around hollow out edge plane, utilizes the vibration damping being placed in boss support hollow out framework to connect box, connect four elastic vibration isolation unit on boss support 1, constitute the framework of integral vibration isolation system, reduce the overall structure size of vibration isolator, make vibration isolator structure size design compacter, reasonable.
There is stable integral vibration isolation performance. Elastic vibration isolation unit of the present invention in the circumferential, connects firmly on the side plane that vibration damping connects box around boss support 1 boss side plane, forms one and points to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space. Vibration damping will be fixed on by vibration isolation components and parts to connect on box, it is ensured that whole system has stable integral vibration isolation performance in omnirange.
There is significantly high functional reliability. Primary clustering of the present invention is metal structure, and vibration isolator is all-metal material generally, and overcoming prior art rubber shock absorber can be aging, produces the defect of creep, it is possible to adapt to the working environment that various complexity is harsh, therefore have significantly high reliability.
Relatively low natural frequency can be realized, can all have again the multidirectional vibration isolator of all-metal of rational damping characteristic in a plurality of directions, the present invention is by being arranged in damping cylinder 3, axially connect the damping slide block 8 of volute spring 4 and the bolt axially through damping collet chuck plate forms elastic vibration isolation unit, there is enough internal dampings, parameter by selected flexible member, it is ensured that relatively low system frequency; The damping slide block being arranged in damping cylinder constitutes frictional damping element, using the teaching of the invention it is possible to provide the system damping characteristic of reliable and stable, size reasonable.
The present invention adopts degree of freedom direction, 6, space to all point to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space, make the damped elasticity vibrating isolation system that degree of freedom direction, 6, space is collectively forming, all there is good damping property, the isolating technique to components and parts can be realized in any direction, it is possible to meet the requirement to high-performance local vibration isolation of the electronic equipment internal independent components and parts.Thus well solve the independent components and parts of electronic equipment internal in space the problem of any one direction vibration isolation. And overcoming performance when steel-wire isolator dynamic stiffness can only reflect low frequency, and may not apply to high frequency, at high frequency treatment, there is the defect of very big wave phenomenon in impedance curve.
Accompanying drawing explanation
Fig. 1 is the front view that the multidirectional vibration isolator of all-metal of the present invention comprises broken section.
Fig. 2 is the side view of Fig. 1.
In figure: 1 boss support, 2 tubular rivets, 3 damping cylinders, 4 volute springs, 5 bolts, 6 spring collars, 7 external splints, 8 damping slide blocks, 9 inner splints, 10 vibration dampings connect box, 11 nuts.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described.
Consult Fig. 1 Fig. 2. In embodiment described below, the multidirectional vibration isolator of all-metal includes: boss support, the vibration damping connection box being placed in described boss support hollow out framework and the elastic vibration isolation unit connected firmly on described boss support 1 all around protruded around hollow out edge plane, wherein: elastic vibration isolation unit, by being arranged in damping cylinder 3, axially connects the damping slide block 8 of volute spring 4 and the bolt axially through damping collet chuck plate forms. Bolt 5 connects firmly on the side plane that vibration damping connects box 10 by volute spring 4 open top, spring collar 6 and described clamping plate; Described elastic vibration isolation unit in the circumferential, connects firmly on the side plane that vibration damping connects box around boss support 1 boss side plane, forms one and points to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space.
The volute spring 4 of elastic vibration isolation unit is equal helix angle conical helical compression spring, is positioned over bottom vibration isolation unit damping cylinder. Bolt 5 acts on volute spring 4 top by external splint 7, produces decrement in advance, provides the elastic characteristic of linear stable, and obtain relatively low system frequency in vibration processes. Spring collar 6 is placed between damping slide block 8 two ends external splint 7 and inner splint 9, applies elastic pressure on damping slide block 8, and damping slide block 8 produces damping by damping bore wall friction, obtains relatively low system resonance amplification. The damping unit of elastic vibration isolation unit is by the spring collar 6 being coaxially assemblied in damping cylinder 3 housing, external splint 7, damping slide block 8, inner splint 9 is collectively forming an elastic vibration isolation unit having damping characteristic, each vibration isolator adopts four elastic vibration isolation unit to form one around by the elastic vibration isolation unit group of vibration isolation components and parts, realizes the isolating technique to components and parts in any direction.
Four elastic vibration isolation unit are symmetrically connected on a boss support. The top of each elastic vibration isolation unit is simultaneously coupled to a vibration damping by bolt 5 and connects box, is fixed on vibration damping by vibration isolation components and parts and connects on box, is placed between multiple elastic vibration isolation unit, it is ensured that whole system has stable integral vibration isolation performance in omnirange. Multiple elastic vibration isolation unit are riveted on boss support 1 each through tubular rivet 2. The processing of bolt 5 one end has screw thread, and other end processing has the hole turning over riveting. Bolt 5 is installed inner splint 9, spring collar 6, damping slide block 8, external splint 7 successively, then implements to turn over riveting at bolt 5 tail end, more incidentally volute spring 4 loads damping cylinder 3 together. Vibration damping connects box 10 and is connected to the threaded one end of bolt 5 by nut 11, and ensures that each volute spring 4 has certain decrement by design parameter, ultimately forms the miniature integral vibration isolation device of complete multidirectional all-metal.
Treat that the independent entry device of vibration isolation is connected in vibration damping and connects on box 10, when being moved along x or the y direction shown in accompanying drawing 1 relative to vibration isolator by the subsidiary vibration damping connection box 10 of vibration isolation components and parts, external splint 7 along direction of motion side elastic vibration isolation unit compresses volute spring 4, the volute spring 4 of opposite side vibration isolation unit then recovers along with the movement of external splint 7, is collectively forming elastic damping unit; Meanwhile, damping slide block 8 moves along with inner splint 9 and external splint 7, with wall friction in damping cylinder 3 under the resilient force of spring collar 6, produces damping, and so forming one has damped elasticity vibrating isolation system, it is achieved the isolating technique to components and parts.
When being moved along the z direction shown in accompanying drawing 2 relative to vibration isolator by the subsidiary vibration damping connection box 10 of vibration isolation components and parts, bolt 5 on four elastic vibration isolation unit also will along with moving in the z-direction together, make volute spring 4 produce transversely deforming, produce elastic restoring force, form Flexible element; Inner splint 9 and external splint 7 produce relative motion with damping slide block 8, produce frictional damping under volute spring 4 precompressed elastic power effect, and forming one has damped elasticity vibrating isolation system, it is achieved the isolating technique to components and parts.
Claims (7)
1. the multidirectional vibration isolator of all-metal, including the boss support all around protruded around hollow out edge plane, it is placed in the vibration damping in described boss support hollow out framework and connects box and the elastic vibration isolation unit connected firmly on described boss support (1), elastic vibration isolation unit is by being arranged in damping cylinder (3), axially connect the damping slide block (8) of volute spring (4) and the bolt axially through damping collet chuck plate forms, described bolt passes through volute spring (4) open top, spring collar (6) and described clamping plate connect firmly on the side plane that vibration damping connects box (10), it is characterized in that: described elastic vibration isolation unit is in the circumferential, connect firmly on the side plane that vibration damping connects box around boss support (1) boss side plane, form one and point to vibration damping connection box by the multidirectional elastic damping vibrating isolation system in vibration isolation space, wherein, each vibration isolator adopts four elastic vibration isolation unit to form one around by the elastic vibration isolation unit group of vibration isolation components and parts, realize the isolating technique to components and parts in any direction, four elastic vibration isolation unit are riveted on boss support (1) each through tubular rivet (2), connected box by vibration isolation components and parts by vibration damping and be placed between multiple elastic vibration isolation unit, when being moved in the z-direction relative to vibration isolator by vibration isolation components and parts, bolt (5) on four elastic vibration isolation unit also will along with moving in the z-direction together, volute spring (4) is made to produce transversely deforming, produce elastic restoring force, inner splint (9) and external splint (7) produce relative motion with damping slide block (8), produce frictional damping, the isolating technique to components and parts under the power effect of volute spring (4) precompressed elastic.
2. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterised in that: the volute spring (4) of elastic vibration isolation unit is equal helix angle conical helical compression spring, is positioned over bottom vibration isolation unit damping cylinder.
3. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterized in that: bolt (5) acts on volute spring (4) top by external splint (7), produce decrement in advance, vibration processes provides the elastic characteristic of linear stable, and obtains relatively low system frequency.
4. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterized in that: spring collar (6) is placed between damping slide block (8) two ends external splint (7) and inner splint (9), apply elastic pressure on damping slide block (8), damping slide block (8) produces damping by damping bore wall friction, obtains relatively low system resonance amplification.
5. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterized in that: the top of each elastic vibration isolation unit is simultaneously coupled to a vibration damping by bolt (5) and connects box, it is fixed on vibration damping by vibration isolation components and parts to connect on box, is placed between multiple elastic vibration isolation unit.
6. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterized in that: when being moved along x or y direction by vibration isolation components and parts, external splint (7) along direction of motion side elastic vibration isolation unit compresses volute spring (4), and the volute spring (4) of opposite side vibration isolation unit then recovers along with the movement of external splint (7); Meanwhile, damping slide block (8) moves along with inner splint (9) and external splint (7), produces damping, the isolating technique to components and parts with wall friction in damping cylinder (3) under the resilient force of spring collar (6).
7. the multidirectional vibration isolator of all-metal as claimed in claim 1, it is characterized in that: the damping unit of elastic vibration isolation unit is by the spring collar (6) being coaxially assemblied in damping cylinder (3) housing, external splint (7), damping slide block (8), inner splint (9) is collectively forming an elastic vibration isolation unit having damping characteristic, each vibration isolator adopts four elastic vibration isolation unit to form one around by the elastic vibration isolation unit group of vibration isolation components and parts, realizes the isolating technique to components and parts in any direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778330.3A CN104455195B (en) | 2014-12-16 | 2014-12-16 | The multidirectional vibration isolator of all-metal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410778330.3A CN104455195B (en) | 2014-12-16 | 2014-12-16 | The multidirectional vibration isolator of all-metal |
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| CN104455195A CN104455195A (en) | 2015-03-25 |
| CN104455195B true CN104455195B (en) | 2016-06-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177467A1 (en) * | 2016-04-15 | 2017-10-19 | 深圳市大疆创新科技有限公司 | Shock-absorbing mechanism, and unmanned aerial vehicle and movable device using shock-absorbing mechanism |
| CN110513423B (en) * | 2019-09-10 | 2024-04-05 | 北京强度环境研究所 | All-metal elastic supporting pad |
| CN113090709B (en) * | 2021-04-12 | 2024-04-09 | 西安航弓机电科技有限公司 | Inertial module with vibration isolation structure |
| CN114718986A (en) * | 2022-04-26 | 2022-07-08 | 中国电子科技集团公司第二十六研究所 | Full-suspension vibration isolation and isolation method and structure for electronic equipment |
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| JPS6110139A (en) * | 1984-06-22 | 1986-01-17 | Hitachi Ltd | Vibration isolator |
| CN1246584A (en) * | 1998-05-30 | 2000-03-08 | 皇家菲利浦电子有限公司 | Electronic device with vibration sensitive structure unit |
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| CN201621225U (en) * | 2009-12-23 | 2010-11-03 | 中国飞机强度研究所 | Invertedly-mounted vibration isolation device |
| CN104196952A (en) * | 2014-07-14 | 2014-12-10 | 西安电子科技大学 | Two-freedom-degree micro type flexible hinge vibration attenuation platform and vibration attenuation method |
| CN204387200U (en) * | 2014-12-16 | 2015-06-10 | 中国电子科技集团公司第十研究所 | Multidirectional elastic damping vibration isolator |
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2014
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| JPS6110139A (en) * | 1984-06-22 | 1986-01-17 | Hitachi Ltd | Vibration isolator |
| CN1246584A (en) * | 1998-05-30 | 2000-03-08 | 皇家菲利浦电子有限公司 | Electronic device with vibration sensitive structure unit |
| JP3233915B2 (en) * | 1999-09-06 | 2001-12-04 | 有限会社サンコーエンジニアリング | Seismic isolation device |
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