CN106870631A - A kind of laser gyro vibration insulating system - Google Patents
A kind of laser gyro vibration insulating system Download PDFInfo
- Publication number
- CN106870631A CN106870631A CN201710150019.8A CN201710150019A CN106870631A CN 106870631 A CN106870631 A CN 106870631A CN 201710150019 A CN201710150019 A CN 201710150019A CN 106870631 A CN106870631 A CN 106870631A
- Authority
- CN
- China
- Prior art keywords
- shock absorber
- laser gyro
- rubber shock
- imu
- casing
- 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.)
- Pending
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 48
- 230000035939 shock Effects 0.000 claims abstract description 48
- 229920001971 elastomer Polymers 0.000 claims abstract description 37
- 239000005060 rubber Substances 0.000 claims abstract description 37
- 238000013016 damping Methods 0.000 claims abstract description 26
- 230000005284 excitation Effects 0.000 claims abstract description 11
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
- F16F15/08—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 rubber springs ; with springs made of rubber and metal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/66—Ring laser gyrometers
- G01C19/661—Ring laser gyrometers details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Gyroscopes (AREA)
Abstract
A kind of laser gyro vibration insulating system, including casing, IMU supports are provided with the casing, laser gyro is installed on IMU supports, described IMU stent outers or so connect inner frame in two weeks through dish-shaped rubber shock absorber, inner frame upper and lower side connects outer framework through bowl-type rubber shock absorber, and the outer framework is fixed on casing.On the one hand this vibration absorber can protect inertia device laser gyro regular dither in the presence of a harsh environment, can accurate measurement carrier angular speed；On the other hand can isolate or reduce the excitation such as influence of the vibratory impulse to compass in the external world, with good vibration damping and shock resistance effect, accurate course and attitude can be provided, and stable and reliable in work, integral demounting and easy to maintenance.
Description
Technical field
The present invention relates to a kind of laser gyro vibration insulating system.
Background technology
Gyro used by laser gyro is machine laser gyroscope shaking, and it is the Segnac effects by annular light path come quick
There is latch-up phenomenon i.e. unwise to small rotating speed when using any offset frequency measure relative to the angular speed of inertial space in photosensitive road
Sense, therefore machine laser gyroscope shaking makes resonator produce the angular speed of sinusoidal variations using special shaker mechanism, it is therefore desirable to protect
This shake is protected, enables laser gyro normal work；On the other hand the naval vessel equipped with compass is by dynamic excitation such as strong wind
Wave, collision and impact, in order that the output that compass can be stablized is, it is necessary to isolate or reduce influence of the dynamic excitation to it.And show
Some laser gyro vibration absorbers typically use one-level vibration damping, there is two ways, and one kind is outer vibration damping, will metal shock reducing
Device is directly installed on the bottom of casing and internal no shock absorber；Another kind is interior vibration damping, i.e., by common rubber shock absorber
IMU supports are directly anchored on casing, and shock absorber is fitted without outside casing.Both vibration-proof structures are subject to the external world on naval vessel
During excitation such as high sea, collision and impact when, on the one hand influence laser gyro regular dither prevent laser gyro from steady
Fixed accurately measurement angular speed, causes naval vessel course that relatively large deviation occurs；On the other hand easily laser gyro internal junction is constructed
Into damage, so as to influence the life-span of laser gyro.
The content of the invention
Its purpose of the invention is that a kind of laser gyro vibration insulating system of offer, and this vibration absorber on the one hand can
Protection inertia device laser gyro regular dither in the presence of a harsh environment, can accurate measurement carrier angular speed；It is another
The excitation such as influence of the vibratory impulse to compass in the external world can be isolated or be reduced to aspect, be imitated with good vibration damping and shock resistance
Really, accurate course and attitude can be provided, and stable and reliable in work, integral demounting and easy to maintenance.
The technical scheme realized above-mentioned purpose and take, including casing, are provided with IMU supports, on IMU supports in the casing
Laser gyro, described IMU stent outers or so are installed and connect inner frame, inner frame upper and lower side through dish-shaped rubber shock absorber within two weeks
Outer framework is connected through bowl-type rubber shock absorber, the outer framework is fixed on casing.
Beneficial effect
The present invention has advantages below compared with prior art.
1) laser gyro vibration insulating system uses two grades of vibration-proof structures, wherein one-level vibration damping to use left and right suspension type, two
Level vibration damping uses upper and lower drawing and pressing type, this arrangement not only compact conformation, and with good vibration isolating effect；
2) shock absorber that laser gyro vibration insulating system is used all is the rubber shock absorber with metallic framework, with good
Elasticity and shock-absorbing capacity, intrinsic frequency is low and with larger damping, has good result to suppressing amplitude and decay impact；
3) 8 layout 8 layouts of bowl-type rubber shock absorber in center and two grades of vibration dampings of dish-shaped rubber shock absorber in one-level vibration damping
Center overlaps with the center of gravity of the IMU supports for being provided with inertia device, the coupling of all directions excitation is so reduced as far as possible, it is ensured that sieve
Through work that can also be reliable and stable when running into high sea, clashing into collision；
4) 8 principal directions of dish-shaped shock absorber and 8 bowl-types in two grades of vibration dampings in laser gyro vibration insulating system one-level vibration damping
The principal direction of shock absorber is mutually perpendicular to, and so can play more preferable anti-vibration and shock effect when compass is subject to multidirectional excitation
Really；
5) laser gyro vibration insulating system subtracts the connected mode of shock absorber and IMU supports, inner frame, outer framework by rubber,
Dismantle and easy to maintenance, outer framework, inner frame, IMU supports need not dismantle one-level dish shock absorber and two grades of bowl-type vibration dampings
Can individually be repaired in the case of device；
6) laser gyro vibration insulating system compact conformation, lightweight, and IMU supports, inner frame and outer framework are cast using aluminium alloy
Make, processing capacity is few, need to only add the boss for installing gyro and shock absorber；
7) laser gyro vibration insulating system only need to be by not falling off screw and can be fixed in compass casing on outer framework
On, and outer framework is provided with handle, so facilitates integral demounting and maintenance.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the system apparatus structure schematic diagram.
Specific embodiment
The system includes casing 7, as shown in figure 1, being provided with IMU supports 6 in the casing 7, is provided with IMU supports 6 sharp
Optical circulator 3, the outside of the IMU supports 6 left and right connects inner frame 4, the upper and lower side of inner frame 4 warp in two weeks through dish-shaped rubber shock absorber 5
Bowl-type rubber shock absorber 2 connects outer framework 1, and the outer framework 1 is fixed on casing 7.
The dish-shaped rubber shock absorber 5 is provided with 8, and the bowl-type rubber shock absorber 2 is provided with 8.
The dish-shaped rubber shock absorber 5 and bowl-type rubber shock absorber 2 are the rubber shock absorber with metallic framework.
The layout centers and 8 layout centers of bowl-type rubber shock absorber 2 of 8 dishes rubber shock absorber 5 and installation
The center of gravity for having the IMU supports 6 of inertia device overlaps, and the coupling of all directions excitation is so reduced as far as possible, it is ensured that compass is running into
High sea, clash into collision when can also be reliable and stable work.
Embodiment
The system is mainly by outer framework 1, bowl-type rubber shock absorber 2, inner frame 4, dish-shaped rubber shock absorber 5, IMU supports
6th, the composition such as casing 7.As shown in figure 1, this laser gyro vibration absorber uses two grades of vibration-proof structures, laser gyro is installed
3 and the IMU supports 6 of accelerometer be connected with inner frame 4 by 8 dish-shaped rubber shock absorbers 5 and constitute one-level vibration damping, inner frame is logical
Cross 8 bowl-type rubber shock absorbers 2 be connected with outer framework 1 composition two grades of vibration dampings, finally outer framework is fixed on casing 7.It is this
On the one hand vibration absorber can preferably protect inertia device laser gyro regular dither in the presence of a harsh environment, can essence
Really measure the angular speed of carrier；On the other hand can isolate or reduce the excitation such as influence of the vibratory impulse to compass in the external world, tool
There is good vibration damping and shock resistance effect, accurate course and attitude can be provided.
Using two grades of vibration-proof structures, wherein one-level vibration damping uses left and right suspension type, and two grades of vibration dampings use upper and lower drawing and pressing type, this
Arrangement not only compact conformation is planted, and with good vibration isolating effect.
The shock absorber for being used all is the rubber shock absorber with metallic framework, with good elasticity and shock-absorbing capacity,
Intrinsic frequency is low and with larger damping, has good result to suppressing amplitude and decay impact.
8 layout 8 cloth of bowl-type rubber shock absorber in center and two grades of vibration dampings of dish-shaped rubber shock absorber in one-level vibration damping
Office center is overlapped with the center of gravity of the IMU supports for being provided with inertia device, and the coupling of all directions excitation is so reduced as far as possible, it is ensured that
Compass run into high sea, clash into collision when can also be reliable and stable work.
This connected mode for subtracting shock absorber and IMU supports, inner frame, outer framework by rubber, dismounting and easy to maintenance,
Outer framework, inner frame, IMU supports can be repaired individually in the case where that need not dismantle shock absorber.
Three laser gyroes 3 and accelerometer are by the solid inertance element that compass is constituted on IMU supports of screw, 8 dish
The one end of shape rubber shock absorber 5 is arranged on 6 or so 8 boss of IMU supports by screw, and the other end is fixed on a left side for inner frame 4
On right boss, such IMU supports just hang holds the composition laser gyro one-level vibration damping on inner frame；8 bowl-type rubber dampings
The one end of device 2 is connected with 8 boss up and down of inner frame, and the other end is fixed in the boss face up and down of outer framework 1, such inner frame
Composition two grades of vibration dampings of laser gyro on outer framework are just supported on, then casing will be integrally attached to by not falling off screw
On.So on the one hand naval vessel ensure that the regular dither of laser gyro in the case of by high sea, collision, impact, make
Its angular speed for being capable of accurate measurement naval vessel；On the other hand there is good vibration damping and flushing partiting effect, compass is stablized essence
True output course and attitude.
Claims (4)
1. a kind of laser gyro vibration insulating system, including casing（7）, it is characterised in that the casing（7）Inside it is provided with IMU branch
Frame（6）, IMU supports（6）On laser gyro is installed（3）, the IMU supports（6）Outside or so two weeks is through dish-shaped rubber damping
Device（5）Connection inner frame（4）, inner frame（4）Upper and lower side is through bowl-type rubber shock absorber（2）Connection outer framework（1）, the outer framework
（1）It is fixed on casing（7）On.
2. a kind of laser gyro vibration insulating system according to claim 1, it is characterised in that the dish-shaped rubber damping
Device（5）It is provided with 8, the bowl-type rubber shock absorber（2）It is provided with 8.
3. a kind of laser gyro vibration insulating system according to claim 1 and 2, it is characterised in that the dish-shaped rubber
Shock absorber（5）With bowl-type rubber shock absorber（2）It is the rubber shock absorber with metallic framework.
4. a kind of laser gyro vibration insulating system according to claim 1 and 2, it is characterised in that described 8 dish-shaped rubbers
Glue shock absorber（5）Layout center and 8 bowl-type rubber shock absorbers（2）Layout center and the IMU branch for being provided with inertia device
Frame（6）Center of gravity overlap, so as far as possible reduce all directions excitation coupling, it is ensured that compass running into high sea, clash into collide
When can also be reliable and stable work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150019.8A CN106870631A (en) | 2017-03-14 | 2017-03-14 | A kind of laser gyro vibration insulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150019.8A CN106870631A (en) | 2017-03-14 | 2017-03-14 | A kind of laser gyro vibration insulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870631A true CN106870631A (en) | 2017-06-20 |
Family
ID=59170503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710150019.8A Pending CN106870631A (en) | 2017-03-14 | 2017-03-14 | A kind of laser gyro vibration insulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870631A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478225A (en) * | 2017-08-21 | 2017-12-15 | 江西中船航海仪器有限公司 | A kind of laser gyro inertial nevigation apparatus |
| CN109238278A (en) * | 2018-09-29 | 2019-01-18 | 北京航天时代激光导航技术有限责任公司 | A kind of Laser strapdown inertial measurement combination device |
| CN110567452A (en) * | 2019-07-31 | 2019-12-13 | 北京航空航天大学 | Attitude error compensation method for laser gyro double-shaft rotation inertial navigation system |
| CN110702087A (en) * | 2019-10-27 | 2020-01-17 | 江西中船航海仪器有限公司 | Novel flexible gyrocompass |
| CN111473090A (en) * | 2020-04-20 | 2020-07-31 | 南京理工大学 | High-overload-resistant vibration reduction structure for recycling micro-inertia measurement unit |
| CN115406430A (en) * | 2022-11-03 | 2022-11-29 | 四川图林科技有限责任公司 | Laser gyroscope vibration reduction integrated design method under multi-physical-field coupling condition |
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| US20080124224A1 (en) * | 2006-11-26 | 2008-05-29 | Daniel Tsai | Shock Mitigation Suspension Structure |
| CN201170284Y (en) * | 2008-04-08 | 2008-12-24 | 中国航天时代电子公司第十六研究所 | Metal rubber shock absorber and shock absorber system |
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| CN206918159U (en) * | 2017-03-14 | 2018-01-23 | 江西中船航海仪器有限公司 | A kind of laser gyro vibration absorber |
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2017
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| US20080124224A1 (en) * | 2006-11-26 | 2008-05-29 | Daniel Tsai | Shock Mitigation Suspension Structure |
| CN201170284Y (en) * | 2008-04-08 | 2008-12-24 | 中国航天时代电子公司第十六研究所 | Metal rubber shock absorber and shock absorber system |
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| CN106369105A (en) * | 2016-10-26 | 2017-02-01 | 上海航天控制技术研究所 | Eight-point damping system for optical fiber inertial unit of spacecraft |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478225A (en) * | 2017-08-21 | 2017-12-15 | 江西中船航海仪器有限公司 | A kind of laser gyro inertial nevigation apparatus |
| CN109238278A (en) * | 2018-09-29 | 2019-01-18 | 北京航天时代激光导航技术有限责任公司 | A kind of Laser strapdown inertial measurement combination device |
| CN109238278B (en) * | 2018-09-29 | 2020-10-23 | 北京航天时代激光导航技术有限责任公司 | Laser strapdown inertial measurement combination device |
| CN110567452A (en) * | 2019-07-31 | 2019-12-13 | 北京航空航天大学 | Attitude error compensation method for laser gyro double-shaft rotation inertial navigation system |
| CN110567452B (en) * | 2019-07-31 | 2021-04-23 | 北京航空航天大学 | Attitude error compensation method for laser gyro double-shaft rotation inertial navigation system |
| CN110702087A (en) * | 2019-10-27 | 2020-01-17 | 江西中船航海仪器有限公司 | Novel flexible gyrocompass |
| CN111473090A (en) * | 2020-04-20 | 2020-07-31 | 南京理工大学 | High-overload-resistant vibration reduction structure for recycling micro-inertia measurement unit |
| CN111473090B (en) * | 2020-04-20 | 2022-05-13 | 南京理工大学 | High-overload-resistant vibration reduction structure for recycling micro-inertia measurement unit |
| CN115406430A (en) * | 2022-11-03 | 2022-11-29 | 四川图林科技有限责任公司 | Laser gyroscope vibration reduction integrated design method under multi-physical-field coupling condition |
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Application publication date: 20170620 |