CN105020329B - A kind of high accuracy shock isolator - Google Patents
A kind of high accuracy shock isolator Download PDFInfo
- Publication number
- CN105020329B CN105020329B CN201510457940.8A CN201510457940A CN105020329B CN 105020329 B CN105020329 B CN 105020329B CN 201510457940 A CN201510457940 A CN 201510457940A CN 105020329 B CN105020329 B CN 105020329B
- Authority
- CN
- China
- Prior art keywords
- high accuracy
- shock isolator
- buffer bar
- hydraulic damping
- top base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16F15/023—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 fluid means
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
-
- 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
Abstract
The invention discloses a kind of high accuracy shock isolator, including top base, bottom base and the multiple spherical joints being arranged on top base and bottom base, hydraulic damping buffer bar is connected between two relative spherical joints, photoemission unit is provided with described top base, opto-electronic receiver processing unit corresponding with photoemission unit is provided with described bottom base；Due to being detected to upper lower platform using the method for photoelectricity, quickly and accurately can in real time measure the change of shock isolator relative attitude, with dynamic range it is big, measuring speed is fast, high precision, high degree of automation the features such as.
Description
Technical field
The invention belongs to anti-vibration, shock resistant technique field, and in particular to a kind of high accuracy shock isolator.
Background technology
The equipment such as naval vessel, aircraft in addition to by the vibration normally navigated by water, impacting, the mechanical environment such as waving and influence, and also
The blast impulse such as submarine mine, torpedo, guided missile may be subject to, or the Strong Impact Loading that other arm discharges etc. cause, this impact is carried
If lotus is not added with protecting and damaging equipment.
Be to reduce the shock loading influence and destruction that are brought to carrier-borne, airborne equipment, generally inertial navigation and installation pedestal it
Between be provided with the shock isolating apparatus of shock resistance overload protection.
Inertial navigation shock isolator uses multi link vibration damping mode in parallel, mainly by damping impact bar, spherical joint, upper leave from office
Body is constituted.Due in foozle and assembling process formed minim gap, shock isolator before impingement after, upper lower platform body
Distortion inaccuracy is generally higher than 30 " more than, and requirement of the High Accuracy Inertial to shock isolator is 10 " within, therefore in order to detect
Shock isolator whether meet design requirement, it is necessary to shock isolator before impingement after attitude and course change examine
Survey.
The precision of country's inertial navigation shock isolator raising at present is relied primarily on and improves damper rod, the accuracy of manufacture of spherical joint is come
Improve the recovery precision of shock isolator.Limited by manufacturing capacity, ball-joint gap, damper rod are replied error etc. and cannot be arranged
Remove, general gap 0.01mm, attitude error is 30 " more than.
The content of the invention
Shortcoming and defect in order to overcome prior art of the invention, the invention provides a kind of high accuracy shock isolator,
The present apparatus can provide a kind of method of use photoelectricity and upper lower platform is detected, quickly and accurately can in real time measure punching
Hit the change of isolator relative attitude, with dynamic range is big, measuring speed fast, high precision, high degree of automation the features such as, completely
Meet the requirement of shock isolator dynamic attitude accuracy test system.
The technical solution adopted for the present invention to solve the technical problems is：A kind of high accuracy shock isolator, including upper base
Seat, bottom base and the multiple spherical joints being arranged on top base and bottom base, connect between two relative spherical joints
There is hydraulic damping buffer bar, photoemission unit is provided with described top base, be provided with described bottom base and photoelectricity
The corresponding opto-electronic receiver processing unit of transmitter unit.
A kind of described high accuracy shock isolator, its photoemission unit includes light source, star tester and collimator objective.
A kind of described high accuracy shock isolator, its opto-electronic receiver processing unit includes light shield, camera lens, CCD detection
Device and image procossing and computing module.
A kind of described high accuracy shock isolator, its spherical joint is by upper and lower casing and is movably arranged on upper and lower shell
Internal spheroid composition, the gap between the spheroid and upper and lower casing is less than 0.01mm.
A kind of described high accuracy shock isolator, its hydraulic damping buffer bar has 6.
A kind of described high accuracy shock isolator, its hydraulic damping buffer bar is internally provided with damper rod, up and down bullet
Spring and position-limit mechanism, the two ends of hydraulic damping buffer bar are helicitic texture.
A kind of described high accuracy shock isolator, its top base and bottom base are circle.
The beneficial effects of the invention are as follows：The light of the light source transmitting of photoelectricity transmitter unit is uniformly impinged upon on star tester during work,
Directional light being formed by collimator objective to project, simulating the asterism target of infinite point, opto-electronic receiver processing unit is to directional light again
Imaging, forms asterism video image and exports to image procossing and computing module, then completes image by image procossing and computing module
Treatment, asterism detection, target identification and attitude algorithm, the relative attitude between output transmitter unit and reception processing unit become
Change, resulting relative attitude change is the dynamic attitude accuracy of equipment shock isolator.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Each reference is：1-top base, 2-hydraulic damping buffer bar, 3-spherical joint, 4-bottom base, 5-light
Electric transmitter unit, 6-opto-electronic receiver processing unit.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in reference picture 1, the invention discloses a kind of high accuracy shock isolator, including circular top base 1, bottom base
4 and multiple spherical joints 3 for being arranged on by certain angle on top base 1 and bottom base 4, described spherical joint 3 is by upper and lower
Housing and the spheroid composition being arranged in upper and lower shell body, upper-lower casing rotate flexible with spheroid, and gap is less than 0.01mm, on
Pedestal 1 is circular configuration, and with spherical joint link position and photoemission unit mounting platform, bottom base 4 is circular configuration,
With spherical joint link position and opto-electronic receiver unit mounting platform, it is fixedly connected between two relative spherical joints 3
Hydraulic damping buffer bar 2, is provided with photoemission unit 5 on described top base 1, photoemission unit 5 is by light source, star tester
With the element such as collimator objective composition, it is provided with described bottom base 4 and the treatment of the corresponding opto-electronic receiver of photoemission unit 5 is single
Unit 6, opto-electronic receiver processing unit 6 is made up of elements such as light shield, camera lens, ccd detector and image procossing and computing modules, work
The light of the light source transmitting of photoelectricity transmitter unit 5 is uniformly impinged upon on star tester when making, then forms directional light injection by collimator objective,
The asterism target of infinite point is simulated, opto-electronic receiver processing unit 6 forms asterism video image and export to figure to parallel photoimaging
As treatment and computing module, then image procossing, asterism detection, target identification and attitude solution are completed by image procossing and computing module
Calculate, the relative attitude change between output transmitter unit and reception processing unit, resulting relative attitude change is equipment
Shock isolator moves attitude accuracy.
The present invention can isolate the thump of extraneous transmission using many buffer bars in parallel, and absorption consumption foreign impacts are delivered to and are
Energy on system, reduces the oscillation intensity of load installation base surface, buffers influence of the extraneous thump to reference for installation load, is
The inertial navigation of carrying provides overload protection, while using Photoelectric Detection and the method for digital processing, the appearance of the upper and lower pedestal of accurate measurement
State variable quantity compensates the attitudes vibration angle of shock isolator, realizes the function that shock isolator high accuracy resets.The present invention can
Shock resistance protective effect is provided with for the navigation equipment with attitude accuracy, one-level resetting attitude, course precision are better than 1
Point, while having the characteristics of reseting precision is high, installation is simple, applied widely.
The present invention stores the impact absorbed in impact process by 6 displacement deformation abilities of hydraulic damping buffer bar 2
Energy, hydraulic damping buffer bar 2 is internally provided with damper rod, upper lower spring and position-limit mechanism, the two ends of hydraulic damping buffer bar 2
It is connected with spherical joint 3 by helicitic texture, because hydraulic damping buffer bar 2 is designed using built-in vibration insulation structure, is laid out and is
Form symmetrical above and below, therefore with good protecting against shock characteristic.Top base 1, bottom base 4, hydraulic damping buffer bar 2, spherical pass
Section 3 constitutes the agent structure of high accuracy shock isolator, is mainly used to absorbing external impact and completes one-level resetting, it is desirable to
Agent structure can bear the impact of more than 192g, and impact isolating rate is more than more than 90%.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part uses, for
For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is some deformation and
Improve, these belong to protection scope of the present invention.
Claims (4)
1. a kind of high accuracy shock isolator, including top base (1), bottom base (4) and top base (1) and bottom base are arranged on
(4) the multiple spherical joints (3) on, hydraulic damping buffer bar (2) is connected between two relative spherical joints (3), and it is special
Levy and be：Photoemission unit (5) is provided with described top base (1), is provided with described bottom base (4) and is sent out with photoelectricity
Penetrate the corresponding opto-electronic receiver processing unit (6) of unit (5)；Described photoemission unit (5) includes light source, star tester and collimation
Object lens；Described opto-electronic receiver processing unit (6) includes light shield, camera lens, ccd detector and image procossing and computing module；
Described spherical joint (3) is made up of upper and lower casing and the spheroid being movably arranged in upper and lower shell body, the spheroid with it is upper,
Gap between lower house is less than 0.01mm.
2. a kind of high accuracy shock isolator according to claim 1, it is characterised in that described hydraulic damping buffer bar
(2) there are 6.
3. a kind of high accuracy shock isolator according to claim 2, it is characterised in that described hydraulic damping buffer bar
(2) be internally provided with damper rod, upper lower spring and position-limit mechanism, the two ends of hydraulic damping buffer bar (2) are helicitic texture.
4. a kind of high accuracy shock isolator according to claim 3, it is characterised in that described top base (1) and under
Pedestal (4) is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457940.8A CN105020329B (en) | 2015-07-30 | 2015-07-30 | A kind of high accuracy shock isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457940.8A CN105020329B (en) | 2015-07-30 | 2015-07-30 | A kind of high accuracy shock isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020329A CN105020329A (en) | 2015-11-04 |
| CN105020329B true CN105020329B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457940.8A Active CN105020329B (en) | 2015-07-30 | 2015-07-30 | A kind of high accuracy shock isolator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018121694A1 (en) * | 2017-09-07 | 2019-03-07 | Stabilus Gmbh | Systems and methods for attenuating photovoltaic module assemblies |
| CN109139763A (en) * | 2018-10-29 | 2019-01-04 | 中国船舶重工集团公司第七0七研究所 | A kind of novel shock isolator |
| CN110043560A (en) * | 2019-03-25 | 2019-07-23 | 南京捷诺环境技术有限公司 | 3 d-line rolling guide |
| CN112718043B (en) * | 2020-12-16 | 2022-01-25 | 西华大学 | Impact isolation system in rice hulling roller |
| CN117231879B (en) * | 2023-11-13 | 2024-01-30 | 中国船舶集团有限公司第七〇七研究所 | Leveling device for inertial navigation equipment and construction method of leveling device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592422A (en) * | 1969-07-29 | 1971-07-13 | Nasa | Vibration isolation system using compression springs |
| US4892051A (en) * | 1984-05-23 | 1990-01-09 | Tayco Developments, Inc. | Shock isolation method and apparatus for ship-mounted device |
| US6640941B2 (en) * | 2001-10-23 | 2003-11-04 | Tayco Developments, Inc. | Shock-isolation structure |
| ES2401365T3 (en) * | 2009-11-20 | 2013-04-19 | Eads Deutschland Gmbh | Shock Insulation Structure |
| CN102141110B (en) * | 2011-01-24 | 2012-10-03 | 北京航空航天大学 | Hydraulic vibration active isolation platform |
| CN103075615B (en) * | 2012-12-19 | 2014-01-22 | 哈尔滨工业大学 | Air spring vibration isolation platform based on gas magnetic zero reference and laser self-collimating measurement |
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2015
- 2015-07-30 CN CN201510457940.8A patent/CN105020329B/en active Active
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| CN105020329A (en) | 2015-11-04 |
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