CN207816289U - A kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping - Google Patents
A kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping Download PDFInfo
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- CN207816289U CN207816289U CN201820019320.5U CN201820019320U CN207816289U CN 207816289 U CN207816289 U CN 207816289U CN 201820019320 U CN201820019320 U CN 201820019320U CN 207816289 U CN207816289 U CN 207816289U
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Abstract
The utility model discloses the high-precision optical fiber inertial nevigation apparatus of a kind of 8 points inside vibration dampings, including gimbal, optic fiber gyroscope component, stake body and damping assembly, optic fiber gyroscope component is mounted on gimbal, and gimbal is placed in stake body and is fixedly connected with stake body by damping assembly；Gimbal is the skeleton structure in class four directions, and eight Angle Positions of front side and rear side offer through-hole equipped with I-shaped support lug structure on the journal stirrup；Stake body is the frame beam structure in the class four directions that volume is more than gimbal, and stake body eight angular positions corresponding with the journal stirrup through-hole of gimbal are provided with mounting hole；Gimbal is with stake body by being connected set on the damping assembly of eight angular positions；8 points of inside provided by the utility model vibration-proof structure ensures the effective attenuation in transmittance process of the mechanical energy in vibration processes, improves the vibration characteristics and adaptive capacity to environment of optical fiber inertial navigation system.
Description
Technical field
The utility model belongs to technical field of inertial, more particularly, to the high-precision of a kind of 8 points inside vibration dampings
Optical fiber inertial nevigation apparatus.
Background technology
With the high speed development of inertial technology, the technology that optical fibre gyro is applied to inertia field is more and more ripe, especially
In recent years, the inertial navigation system of high-precision optical fiber gyro composition and inertial measurement system are widely used in various guided missiles, fire
The military fields such as arrow seeder, ground survey platform, satellite, while being also widely used in bridge survey, Road Detection, track inspection
The civil fields such as survey, oil exploration.
Optical fibre gyro is the interferometric fiber optic gyroscope formed based on Sagnac effects, therefore physical field and application environment are drawn
The interference optical fiber top error risen will directly affect the dynamic accuracy and adaptive capacity to environment of optical fiber inertial navigation.Currently, generally adopting
The technologies such as shielding techniques, heat-insulated or heat conduction are taken to improve external physical field；Improved using the method for increasing the rigidity of structure and intensity
Gyro adapts to the ability of environment；There are no ripe inside vibration reducing measures to adapt to come the dynamic accuracy and environment for improving optical fibre gyro
Ability.
Authorization Notice No. is that the utility model patent of CN205333080U discloses a kind of " high-precision optical fiber inertial navigation system
System ", which includes IMU modules, left Change-over frame and right Change-over frame, and left and right Change-over frame passes through eight dampers and IMU moulds
Block is connected, although the adaptive capacity to environment and service life of system are improved to a certain extent, as vibration reduction support
Left Change-over frame, right Change-over frame and mounting seat be Split type movable connection structure, coupling stiffness and intensity are poor, oscillation ring
Its structure can amplify vibration level under border, the effectiveness in vibration suppression of offset vibration-proof structure, and effectiveness in vibration suppression is not ideal enough.
Utility model content
For the disadvantages described above or Improvement requirement of the prior art, the utility model provides a kind of height of 8 points of inside vibration damping
Precision optical fiber inertial navigation device, efficiently solves that high-precision optical fiber inertial nevigation apparatus dynamic accuracy is poor, vibration characteristics is bad, impact acceleration
The problem of energy force difference.
To achieve the above object, according to the one side of the utility model, a kind of the high-precision of 8 points of inside vibration damping is provided
Optical fiber inertial nevigation apparatus is spent, including gimbal, optic fiber gyroscope component, stake body and damping assembly, optic fiber gyroscope component are mounted on
On gimbal, gimbal is placed in stake body and is fixedly connected with stake body by damping assembly；
Gimbal is the skeleton structure in class four directions, and front side and eight Angle Positions of rear side are equipped with I-shaped journal stirrup knot
Structure offers the through-hole for installing damping assembly on journal stirrup；
The journal stirrup of frame beam structure of the stake body for volume more than the class four directions of gimbal, stake body and gimbal is logical
Corresponding eight angular positions in hole are equipped with the mounting hole for installing damping assembly；Eight journal stirrups of gimbal pass through vibration damping
Component is connected with stake body, forms 8 vibration-proof structures.
Preferably, it is above-mentioned 8 points inside vibration damping high-precision optical fiber inertial nevigation apparatus, damping assembly include the first cushion blocking,
Second cushion blocking and stop screw, the first cushion blocking are placed on journal stirrup through-hole both sides, and the second cushion blocking is mounted in journal stirrup through-hole,
Gimbal is fixed on stake body by stop screw across journal stirrup through-hole, is subtracted by adjusting the length control first of stop screw
It shakes the decrement of pad.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, damping assembly further include that setting is limiting
Shield between the ailhead and the first cushion blocking of position screw, by adjusting the decrement of the first cushion blocking of thickness control of shield.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, it is recessed that the through-hole on journal stirrup is that bilateral is justified
Bench-type, the first cushion blocking are placed in the round concave table of both sides.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, optic fiber gyroscope component include adding table group
Part and light source assembly and three groups of ring body components；
Ring body component is arranged with mutually orthogonal topology layout on three lateral surfaces of gimbal, and table component is added to install
In the centre of gimbal, light source assembly is arranged on gimbal on the medial surface opposite with the installation site of ring body component.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, it is pre- between stake body and gimbal
Stay the gap of 2~3mm.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, the decrement of cushion blocking is 10%~
20%.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, further includes the shell of bottom opening, described
Shell is fixed on the pedestal of stake body, including outline border, front panel and upper cover.
Preferably, the high-precision optical fiber inertial nevigation apparatus of above-mentioned 8 points of inside vibration damping, ring body component include fiber optic loop, demodulation
Control mainboard, detector and coupler add table component to include three quartz accelerometers, add table pinboard and for installing stone
The holder and ceramic gasket of English accelerometer.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Row advantageous effect：
The high-precision optical fiber inertial nevigation apparatus of a kind of 8 points of inside vibration damping provided by the utility model, using integral type class four directions
The bearing structure of the stake body of shape frame beam structure and the gimbal of class four directions skeleton structure as optical fibre gyro, enhances light
The coupling stiffness and intensity of fine inertial nevigation apparatus entirety, can effectively improve the impact resistance of device；Gimbal is using I-shaped
Support lug structure is connected by damping assembly with stake body, forms 8 points of inside vibration-proof structures, gimbal and stake body only pass through
Damper mechanism is connected and preset clearance between the two, it is ensured that mechanical energy effective attenuation in transmittance process in vibration processes,
It prevents resonance from being impacted to the precision of optical fibre gyro, improves the vibration characteristics and adaptive capacity to environment of optical fiber inertial navigation system.
Description of the drawings
Fig. 1 is the whole three-dimensional of the high-precision optical fiber inertial nevigation apparatus for 8 points of inside vibration dampings that the utility model embodiment provides
Structure chart；
Fig. 2 is the interior three-dimensional of the high-precision optical fiber inertial nevigation apparatus for 8 points of inside vibration dampings that the utility model embodiment provides
Structure chart；
Fig. 3 is the three-dimensional organigram of gimbal and optic fiber gyroscope component that the utility model embodiment provides；
In all the appended drawings, same reference numeral indicates identical technical characteristic, specially：1- gimbals, 2- light
Fine gyrounit, 3- stake bodies, 4- damping assemblies, 5- shells, 21- ring body components, 22- add table component, 23- light source assemblies, 41-
First cushion blocking, 42- stop screws, 43- shields, the second cushion blockings of 44-, 51- outline borders, 52- front panels, 53- upper covers.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
Fig. 1 is the whole three-dimensional of the high-precision optical fiber inertial nevigation apparatus for 8 points of inside vibration dampings that the utility model embodiment provides
Structure chart；Fig. 2 is the interior three-dimensional of the high-precision optical fiber inertial nevigation apparatus for 8 points of inside vibration dampings that the utility model embodiment provides
Structure chart；Fig. 3 is the three-dimensional organigram of gimbal and optic fiber gyroscope component that the utility model embodiment provides；
As shown, a kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping provided by the utility model, including
Gimbal 1, optic fiber gyroscope component 2, stake body 3, damping assembly 4 and shell 5, optic fiber gyroscope component 2 are placed on gimbal 1
On, gimbal 1 is placed on 3 inside of stake body and is fixedly connected with stake body 3 by damping assembly 4.
Shell 5 is the class tetragonal body structure of bottom opening, and shell 5 is placed on stake body 3 and by 3 pedestal surrounding of stake body
Bolt be fixed, for protecting internal component；Shell 5 includes outline border 51, front panel 52 and upper cover 53.
Optic fiber gyroscope component 2 includes ring body component 21 plus table component 22 and light source assembly 23；Ring body component 21 plus table group
Part 22 and light source assembly 23 are placed on inside gimbal 1.
Gimbal 1 is the skeleton structure in class four directions, and eight Angle Positions of front and rear sides are equipped with I-shaped support lug structure,
The through-hole for installing damping assembly is offered on each journal stirrup, which preferably uses bilateral round concave table type；By three ring bodies
Component 21 is arranged with mutually orthogonal topology layout on three lateral surfaces of gimbal 1, and table component 22 is added to be mounted on gyro
On the crossbeam at 1 middle part of holder, the installation site phase with ring body component 21 is arranged on gimbal 1 in integrated light source assembly 23
To medial surface on.
Ring body component 21 includes the optical devices such as fiber optic loop, demodulation control mainboard, detector and coupler；Add table component packet
Include three quartz accelerometers, one piece plus table pinboard, and holder and ceramic gasket for installing accelerometer.
Stake body 3 is that the agent structure of optical fiber inertial nevigation apparatus is used for mainly as the bearing structure of optic fiber gyroscope component 2
Improve the impact acceleration and vibration characteristics of optic fiber gyroscope component 2；Stake body 3 be class four directions frame beam structure, the structure it is strong
Degree is high and impact resistance is more preferable；The volume of stake body 3 is more than gimbal 1, and gimbal 1 is placed on inside stake body 3, props up
Eight angular positions corresponding with the journal stirrup through-hole of gimbal 1 are provided with the mounting hole of certain depth on frame body 3, which is
Internal thread hole, for installing damping assembly 4.
Damping assembly 4 includes the first cushion blocking 41, stop screw 42 and shield 43 and the second cushion blocking 44；First cushion blocking
41 are placed in the round concave table of journal stirrup through-hole bilateral of gimbal 1, the second cushion blocking 44 be arranged in journal stirrup through-hole, for every
From stop screw 42 and gimbal 1 to reach better effectiveness in vibration suppression；Stop screw 42 passes through journal stirrup through-hole by gimbal 1
Eight earholes be fixed on stake body 3, optic fiber gyroscope component 2 and stake body 3 are only connected by damping assembly 4；Stop screw
It is additionally provided with shield 43 between 42 ailhead and the first cushion blocking 41, the length of stake body 3 is stretched into for adjusting stop screw 42；The
The size of the decrement of one cushion blocking 41 is controlled by adjusting the length of stop screw 42 or the thickness of shield 43, according to more
Secondary experiment show that controlling the decrement of the first cushion blocking 41 can be isolated in 10%~20% range to optical fiber gyroscope precision
The resonant frequency impacted.
8 vibration-proof structures formed by the stake body 3 of class square, gimbal 1 and eight groups of damping assemblies 4 can be true
Mechanical energy effective attenuation in transmittance process in vibration processes is protected, prevents resonance from being impacted to the precision of optical fibre gyro；
Vibration-damping supporting structure is used as using the stake body 3 of integral type, improves the Strong degree and rigidity of optical fiber inertial nevigation apparatus, anti shock and vibration
Ability is more preferable；It is significant to note that be completed between after-poppet body 3 and optic fiber gyroscope component 2 answer comprehensive reservation 2~
The gaps 3mm, otherwise influence effectiveness in vibration suppression.
After gimbal 1 and stake body 3 are completed, outline border 51 and front panel 52 are covered, is placed on the top of stake body 3
Secondary power supply, IF modules, computer plate module, each connecting cable and socket finally install upper cover 53.
The impact acceleration of high-precision optical fiber inertial nevigation apparatus provided in this embodiment reaches 70g, and vibration precision meets overall set
The requirement of meter technology.
Compared to existing optical fiber inertial navigation system, a kind of high-precision optical fiber of 8 points of inside vibration damping provided by the utility model
Inertial nevigation apparatus, using the stake body of integral type class square frame beam structure and the gimbal of class four directions skeleton structure as light
The bearing structure of fine gyro；Gimbal is connected by damping assembly with stake body using I-shaped support lug structure, forms at 8 points
Internal vibration-proof structure, gimbal and stake body are only connected by damper mechanism and preset clearance between the two, it is ensured that vibrated
Mechanical energy effective attenuation in transmittance process in journey, prevents resonance from being impacted to the precision of optical fibre gyro, improves light
The vibration characteristics and adaptive capacity to environment of fine inertial navigation system.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping, which is characterized in that including gimbal (1), optical fiber top
Spiral shell component (2), stake body (3) and damping assembly (4), the optic fiber gyroscope component (2) is mounted on gimbal (1), described
Gimbal (1) is placed in stake body (3) and is fixedly connected with stake body (3) by the damping assembly (4)；
The gimbal (1) is the skeleton structure in class four directions, and front side and eight Angle Positions of rear side are equipped with I-shaped journal stirrup
Structure offers the through-hole for installing damping assembly (4) on the journal stirrup；
The stake body (3) is the frame beam structure in the class four directions that volume is more than gimbal (1), stake body (3) and gyro branch
Corresponding eight angular positions of journal stirrup through-hole of frame (1) are equipped with the mounting hole for installing damping assembly (4)；Gimbal
(1) eight journal stirrups are connected by damping assembly (4) with stake body (3), and 8 vibration-proof structures are formed.
2. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as described in claim 1 vibration damping, which is characterized in that the vibration damping group
Part (4) includes the first cushion blocking (41), the second cushion blocking (44) and stop screw (42), and the first cushion blocking (41) setting exists
Journal stirrup through-hole both sides, second cushion blocking (44) are mounted in journal stirrup through-hole, and the stop screw (42) passes through journal stirrup through-hole
Gimbal (1) is fixed on stake body (3), the first cushion blocking (41) is controlled by adjusting the length of stop screw (42)
Decrement.
3. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as claimed in claim 2 vibration damping, which is characterized in that the vibration damping group
Part (4) further includes the shield (43) being arranged between the ailhead and the first cushion blocking (41) of stop screw (42), by adjusting institute
State the decrement of the first cushion blocking of thickness control (41) of shield (43).
4. such as the high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration dampings of claims 1 to 3 any one of them, which is characterized in that
Through-hole on the journal stirrup is bilateral round concave table type, and the first cushion blocking (41) is placed in the round concave table of both sides.
5. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as claimed in claim 4 vibration damping, which is characterized in that the optical fiber top
Spiral shell component (2) includes adding table component (22), light source assembly (23) and three groups of ring body components (21)；
The ring body component (21) is arranged in a manner of mutually orthogonal on three lateral surfaces of gimbal (1), described plus table
Component (22) is mounted on the centre of gimbal (1), and the light source assembly (23) is arranged on gimbal (1) and ring body component
(21) on the opposite medial surface of installation site.
6. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as claimed in claim 4 vibration damping, which is characterized in that the stake body
(3) gap of 2~3mm is reserved between gimbal (1).
7. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as claimed in claim 2 or claim 3 vibration damping, which is characterized in that described to subtract
Shake pad (41) decrement be 10%~20%.
8. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as described in claim 1 or 6 vibration damping, which is characterized in that further include
The shell (5) of bottom opening, the shell (5) are fixed on the pedestal of stake body (3), including outline border (51), front panel (52)
With upper cover (53).
9. the high-precision optical fiber inertial nevigation apparatus of 8 points of inside as claimed in claim 5 vibration damping, which is characterized in that the ring body group
Part (21) includes fiber optic loop, demodulation control mainboard, detector and coupler, and described plus table component (22) includes that three quartz accelerate
Degree meter plus table pinboard and holder and ceramic gasket for installing quartz accelerometer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820019320.5U CN207816289U (en) | 2018-01-05 | 2018-01-05 | A kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820019320.5U CN207816289U (en) | 2018-01-05 | 2018-01-05 | A kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping |
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| Publication Number | Publication Date |
|---|---|
| CN207816289U true CN207816289U (en) | 2018-09-04 |
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ID=63326254
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| CN201820019320.5U Active CN207816289U (en) | 2018-01-05 | 2018-01-05 | A kind of high-precision optical fiber inertial nevigation apparatus of 8 points of inside vibration damping |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682991A (en) * | 2018-12-12 | 2019-04-26 | 上海航天控制技术研究所 | A kind of carrier rocket high-altitude active off-load accelerometer device |
| CN110672084A (en) * | 2019-11-20 | 2020-01-10 | 衡阳市和仲通讯科技有限公司 | Active heat dissipation optical fiber gyroscope framework |
| CN111044028A (en) * | 2020-01-09 | 2020-04-21 | 陕西华燕航空仪表有限公司 | Three-axis optical fiber gyroscope |
| CN111215887A (en) * | 2019-12-04 | 2020-06-02 | 上海航天控制技术研究所 | Error-proof combined device for quick assembly alignment of sensitive package |
| CN111964660A (en) * | 2020-06-30 | 2020-11-20 | 北京航天时代光电科技有限公司 | Optical fiber gyroscope capable of independently resisting high-overload large impact in axial direction |
| CN112146641A (en) * | 2020-09-25 | 2020-12-29 | 上海航天控制技术研究所 | Four-axis high-precision optical fiber gyroscope combination for space |
| CN112146642A (en) * | 2020-09-25 | 2020-12-29 | 上海航天控制技术研究所 | Three-axis high-precision fiber-optic gyroscope combination for satellite |
| CN112985395A (en) * | 2021-05-12 | 2021-06-18 | 北京三快在线科技有限公司 | Inertia measurement assembly, flight control inertia measurement assembly and aircraft |
| CN114323006A (en) * | 2021-12-30 | 2022-04-12 | 率为科技(北京)有限责任公司 | A vibration-reduced fiber optic inertial navigation system suitable for unmanned driving |
| CN114414841A (en) * | 2021-12-21 | 2022-04-29 | 上海航天控制技术研究所 | Accelerometer combination |
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2018
- 2018-01-05 CN CN201820019320.5U patent/CN207816289U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682991A (en) * | 2018-12-12 | 2019-04-26 | 上海航天控制技术研究所 | A kind of carrier rocket high-altitude active off-load accelerometer device |
| CN110672084A (en) * | 2019-11-20 | 2020-01-10 | 衡阳市和仲通讯科技有限公司 | Active heat dissipation optical fiber gyroscope framework |
| CN111215887B (en) * | 2019-12-04 | 2021-12-14 | 上海航天控制技术研究所 | Error-proof combined device for quick assembly alignment of sensitive package |
| CN111215887A (en) * | 2019-12-04 | 2020-06-02 | 上海航天控制技术研究所 | Error-proof combined device for quick assembly alignment of sensitive package |
| CN111044028A (en) * | 2020-01-09 | 2020-04-21 | 陕西华燕航空仪表有限公司 | Three-axis optical fiber gyroscope |
| CN111964660A (en) * | 2020-06-30 | 2020-11-20 | 北京航天时代光电科技有限公司 | Optical fiber gyroscope capable of independently resisting high-overload large impact in axial direction |
| CN111964660B (en) * | 2020-06-30 | 2023-02-28 | 北京航天时代光电科技有限公司 | Optical fiber gyroscope capable of independently resisting high-overload large impact in axial direction |
| CN112146641A (en) * | 2020-09-25 | 2020-12-29 | 上海航天控制技术研究所 | Four-axis high-precision optical fiber gyroscope combination for space |
| CN112146642A (en) * | 2020-09-25 | 2020-12-29 | 上海航天控制技术研究所 | Three-axis high-precision fiber-optic gyroscope combination for satellite |
| CN112985395A (en) * | 2021-05-12 | 2021-06-18 | 北京三快在线科技有限公司 | Inertia measurement assembly, flight control inertia measurement assembly and aircraft |
| CN112985395B (en) * | 2021-05-12 | 2021-08-24 | 北京三快在线科技有限公司 | Inertia measurement assembly, flight control inertia measurement assembly and aircraft |
| CN114414841A (en) * | 2021-12-21 | 2022-04-29 | 上海航天控制技术研究所 | Accelerometer combination |
| CN114323006A (en) * | 2021-12-30 | 2022-04-12 | 率为科技(北京)有限责任公司 | A vibration-reduced fiber optic inertial navigation system suitable for unmanned driving |
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