CN207066453U - A kind of laser gyro inertial navigation system - Google Patents
A kind of laser gyro inertial navigation system Download PDFInfo
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- CN207066453U CN207066453U CN201721045851.3U CN201721045851U CN207066453U CN 207066453 U CN207066453 U CN 207066453U CN 201721045851 U CN201721045851 U CN 201721045851U CN 207066453 U CN207066453 U CN 207066453U
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Abstract
A kind of laser gyro inertial navigation system, including case lid, casing, bottom, casing side is provided with aerial lug, the left side of the casing is provided with IMU supports, 3 accelerometers plus table support and 3 laser gyroes are installed on IMU supports, 3 laser gyroes connect casing through 8 rubber shock absorbers, and the right side of the casing is provided with IF plates, navigation panel, power panel and bus bar plate, and the IF plates, navigation panel, power panel connect casing with bus bar plate through latch assembly.IMU and printed circuit board are laid out in the left and right sides of casing respectively, spaced intermediate, have compact-sized, small volume, in light weight, the characteristics of being convenient to mount and dismount, and do not interfere with each other, the transmission that heat will not be mutual.
Description
Technical field
It the utility model is related to a kind of laser gyro inertial navigation system.
Background technology
The structure of laser gyro inertial navigation system is mainly made up of core component IMU, various circuit boards, connector etc., wherein
IMU includes accelerometer plus table support, laser gyro, IMU supports etc..IMU is responsible for the survey of carrier angular speed and linear acceleration
Amount, various circuit boards are responsible for power supply, data acquisition, conversion and processing, finally by output side connector position and attitude information.
The various circuit boards of existing many laser gyro inertial navigation systems are all to be arranged on IMU supports or casing by screw
On, the mutual interference of signal is so not only caused, heat mutually transmits, and repairs inconvenient, dismounting IMU and circuit board
It is all cumbersome.Also existing laser gyro inertial navigation system only carries out single-layer shield i.e. only to IMU bulk shieldings, shield effectiveness
It is not fine, sensing element laser gyro and Jia Biao are also bigger by outside electromagnetic interference.
Utility model content
Its purpose of the utility model, which is that, provides a kind of laser gyro inertial navigation system, IMU and printed circuit board difference cloth
Office is spaced intermediate in the left and right sides of casing, has compact-sized, small volume, in light weight, the characteristics of being convenient to mount and dismount, and mutually
Do not disturb, the transmission that heat will not be mutual.
The technical scheme realized above-mentioned purpose and taken, a kind of laser gyro inertial navigation system, including case lid, casing, bottom,
Casing side is provided with aerial lug, and the left side of the casing is provided with IMU supports, 3 accelerometers are installed on IMU supports, are added
Table support and 3 laser gyroes, 3 laser gyroes connect casing through 8 rubber shock absorbers, and the right side of the casing is provided with
IF plates, navigation panel, power panel and bus bar plate, the IF plates, navigation panel, power panel connect casing with bus bar plate through latch assembly.
Beneficial effect
The utility model has advantages below compared with prior art.
1) 3 accelerometers plus table support, 3 laser gyroes are all mounted in composition laser gyro inertial navigation on IMU supports
The core I MU of system, installed in the left side of casing；IF plates, navigation panel, power panel and bus bar plate are arranged on the right side of casing, in
It is spaced apart, does not interfere with each other, heat also will not be transmitted mutually, topology layout compact and reasonable；
2) 8 rubber shock absorber one end are connected with casing, and the other end is connected with IMU supports, and such IMU is just suspended on casing
In, this has good effectiveness in vibration suppression to whole system to shock absorber layout, and sensing element is swashed in vibrated or impact
Optical circulator and acceleration are in respect of protective effect；
3) bus bar plate is arranged on the bottom of casing, and IF plates, navigation panel and power panel are inserted on bus bar plate, realize three pieces of printings
Being in communication with each other between circuit board, space so can be not only saved, cabling is convenient, and easy to maintenance, discovery circuit problem
When can directly change circuit board；
4) IF plates, navigation panel and power panel, which are fixed, uses homemade locking member, it by tie down screw, upper wedge type block, in
Wedge type block, lower wedge type block are formed, and wherein locking nut is set on lower wedge type block, and middle wedge type block is provided with strip hole, and riveting is in printing electricity
On the plate of road, so with a word screwdriver rotational lock screw rod, upper wedge type block slides downwards, lower wedge type block slides upwards, thus may be used
So that circuit board is locked in the groove of casing, this locking mechanism is simple, convenient disassembly；
5) gyro radome is installed on 3 laser gyroes, has mask frame again in IMU outside, carries out double layer screen,
It can make whole system that there is good shield effectiveness, sensing element gyro and Jia Biao is stablized the work for protecting precision；
6) thermal grease conduction is coated on heat sink, the power module being allowed on the power panel bigger with caloric value is adjacent to, so
After be fixed on casing, so conducted heat to using heat sink in air and casing surrounding be provided with radiating groove, this
Sample whole system radiating effect is relatively good.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation front view of the present utility model；
Fig. 2 is structural representation top view of the present utility model；
Fig. 3 is the latch assembly structural representation in the utility model.
Embodiment
A kind of laser gyro inertial navigation system, including case lid 1, casing 2, bottom 15, the side of casing 2 are provided with aerial lug
20, as shown in Figure 1 and Figure 2, the left side of the casing 2 is provided with IMU supports 3, and 3 accelerometers 5 plus table are installed on IMU supports 3
Support 4 and 3 laser gyroes 18,3 laser gyroes 18 connect casing 2 through 8 rubber shock absorbers 16, the casing 2
Right side is provided with IF plates 6, navigation panel 8, power panel 10 and bus bar plate 14, the IF plates 6, navigation panel 8, power panel 10 and bus bar plate 14
Casing 2 is connected through latch assembly 13.
The latch assembly 13 includes tie down screw 21, upper wedge type block 22, middle wedge type block 23, lower wedge type block 24, locking screw
Mother 25, as shown in figure 3, the locking nut 25 is set on lower wedge type block 24, is provided with strip hole, middle wedge type block on middle wedge type block 23
23 strip hole riveting is on the printed circuit board of IF plates 6, navigation panel 8, power panel 10 and bus bar plate 14, rotational lock screw rod 21,
Sliding, lower wedge type block 24 slide upper wedge type block 22 upwards downwards, printed circuit board are locked in the groove of the inner side of casing 2, locking
Simple in construction, detachable maintaining is convenient.
The IF plates 6, navigation panel 8, the side of power panel 10 are provided with IF plates liner plate 7, navigation panel liner plate 9, power panel liner plate
11, the right side in the casing 2 is provided with heat sink 12.
Gyro radome 19, the IMU supports 3 are installed on 3 laser gyroes 18
Outside be provided with mask frame 17.
Embodiment
The present apparatus mainly by case lid 1, casing 2, IMU supports 3, plus table support 4, accelerometer 5, IF plates 6, IF plates liner plate 7,
Navigation panel 8, navigation panel liner plate 9, power panel 10, power panel liner plate 11, heat sink 12, latch assembly 13, bus bar plate 14, bottom
15th, rubber shock absorber 16, mask frame 17, laser gyro 18, gyro radome 19, aerial lug 20 etc. form.Wherein lock
Component 13 is made up of tie down screw 21, upper wedge type block 22, middle wedge type block 23, lower wedge type block 24, locking nut 25, as shown in Figure 1, Figure 2,
Shown in Fig. 3.3 accelerometers 5 plus 4,3 laser gyroes 18 of table support, which are all mounted on IMU supports 3, forms laser gyro
The core I MU of inertial navigation system, the left side of casing 2 is suspended on by 8 rubber shock absorbers 16；IF plates 6, navigation panel 8, power panel 10
The right side of casing 2 is fixed on by latch assembly 13 with bus bar plate 14, spaced intermediate, signal is not interfere with each other, and heat also will not phase
Mutually transmit, topology layout compact and reasonable, be convenient to mount and dismount.
IMU and printed circuit board are laid out in the left and right sides of casing respectively, spaced intermediate, not only compact-sized small volume,
It is in light weight, and do not interfere with each other, the transmission that heat will not be mutual.
IMU is suspended in casing by 8 rubber shock absorbers, there is good effectiveness in vibration suppression to whole system, is being shaken
Sensing element laser gyro and accelerometer can be protected during dynamic impact, the output that can stablize.
Gyro radome 19 is installed on 3 laser gyroes 18, has mask frame 17 again in IMU outside, is carried out double-deck
Shielding, can make whole system have good shield effectiveness, sensing element gyro and Jia Biao is stablized the work for protecting precision.
Being in communication with each other between IF plates 6, navigation panel 8 and power panel 10 is made using bus bar plate 14, so can not only be saved
Space, cabling are convenient, and easy to maintenance, can directly change circuit board during discovery circuit problem.IF plates 6, navigation panel 8 and electricity
Source plate 10 is fixed and uses latch assembly 13, and it is made up of tie down screw 21, upper wedge type block 22, middle wedge type block 23, lower wedge type block 24,
Wherein locking nut 25 is set on lower wedge type block 24, and middle wedge type block 23 is provided with strip hole, riveting on a printed circuit board, so with one
Word screwdriver rotational lock screw rod 21, sliding, lower wedge type block 24 slide upper wedge type block 22 upwards downwards, thus can be by circuit board
It is locked in the groove of casing 2, this locking mechanism is simple, and detachable maintaining is convenient.
Operation principle
3 accelerometers are fixed in three mutually perpendicular positioning holes for adding table support, are formed and are added table component, add table group
Part is arranged in the inner chamber of IMU supports, and 3 laser gyroes are arranged on three orthogonal benchmark of IMU supports together with gyro radome
On face, the core I MU of laser gyro inertial navigation system is thus constituted, is fixed IMU and mask frame using 8 rubber shock absorbers
On casing, such IMU is just suspended in casing by front and rear rubber shock absorber, is accelerated for measuring the angular speed of carrier and line
Degree.IF plates liner plate, navigation panel liner plate and power panel liner plate are solid the one of IF plates, navigation panel and power panel respectively by rivet
Side, three latch assemblies are then distinguished into opposite side of the riveting in IF plates, navigation panel and power panel, form IF board components, navigation panel
Component, power supply board component.Wherein locking member is mainly by wedge type block, locking nut under tie down screw, upper wedge type block, middle wedge type block
Composition, locking nut are set in lower wedge type block, and the hole of middle wedge type block is strip hole, so with a word screwdriver rotational lock screw rod
When, upper wedge type block is slid downwards, and lower wedge type block slides upwards, and IF plates, navigation panel and power panel can be just squeezed in the groove of casing
It is interior.Bus bar plate is fixed on the bottom of casing, and IF board components, navigation board component and power supply board component are respectively inserted in the corresponding groove of casing
It is interior and fixed, the power module that thermal grease conduction is close on the bigger power panel of caloric value is coated on heat sink and is radiated.IF
Plate is responsible for the analog signal of accelerometer output being converted into data signal, and navigation panel is responsible for the number such as laser gyro, accelerometer
According to collection and navigation calculation, power panel be responsible for laser gyro, accelerometer, IF plates, navigation panel etc. power, pass through bus bar plate
Upper connector is in communication with each other, and orientation and attitude information are exported using aerial lug.
Claims (4)
1. a kind of laser gyro inertial navigation system, including case lid（1）, casing（2）, bottom（15）, casing（2）Side connects provided with outside
Connect device（20）, it is characterised in that the casing（2）Left side be provided with IMU supports（3）, IMU supports（3）3 acceleration of upper installation
Meter（5）Plus table support（4）With 3 laser gyroes（18）, 3 laser gyroes（18）Through 8 rubber shock absorbers（16）Connection
Casing（2）, the casing（2）Right side be provided with IF plates（6）, navigation panel（8）, power panel（10）And bus bar plate（14）, the IF
Plate（6）, navigation panel（8）, power panel（10）And bus bar plate（14）Through latch assembly（13）Connect casing（2）.
A kind of 2. laser gyro inertial navigation system according to claim 1, it is characterised in that the latch assembly（13）Including
Tie down screw（21）, upper wedge type block（22）, middle wedge type block（23）, lower wedge type block（24）, locking nut（25）, the locking nut
（25）It is set in lower wedge type block（24）On, middle wedge type block（23）On be provided with strip hole, middle wedge type block（23）Strip hole riveting in IF plates
（6）, navigation panel（8）, power panel（10）And bus bar plate（14）Printed circuit board on, rotational lock screw rod（21）, upper wedge type block
（22）Sliding, lower wedge type block downwards（24）Sliding upwards, casing is locked at by printed circuit board（2）In the groove of inner side, locking knot
Structure is simple, and detachable maintaining is convenient.
A kind of 3. laser gyro inertial navigation system according to claim 1 or 2, it is characterised in that the IF plates（6）, navigation
Plate（8）, power panel（10）Side be provided with IF plate liner plates（7）, navigation panel liner plate（9）, power panel liner plate（11）, the casing
（2）Interior right side is provided with heat sink（12）.
A kind of 4. laser gyro inertial navigation system according to claim 1, it is characterised in that 3 laser gyroes（18）
On gyro radome is installed（19）, the IMU supports（3）Outside be provided with mask frame（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721045851.3U CN207066453U (en) | 2017-08-21 | 2017-08-21 | A kind of laser gyro inertial navigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721045851.3U CN207066453U (en) | 2017-08-21 | 2017-08-21 | A kind of laser gyro inertial navigation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207066453U true CN207066453U (en) | 2018-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721045851.3U Active CN207066453U (en) | 2017-08-21 | 2017-08-21 | A kind of laser gyro inertial navigation system |
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Cited By (3)
| 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 |
| CN110466893A (en) * | 2019-07-24 | 2019-11-19 | 长沙誉美达光电技术有限责任公司 | A kind of inertia sensing device assembly sealed storage cabinet and its manufacturing process |
| CN114295129A (en) * | 2021-12-30 | 2022-04-08 | 率为科技(北京)有限责任公司 | Anti-electromagnetic interference light and small optical fiber inertial navigation system for intelligent driving |
-
2017
- 2017-08-21 CN CN201721045851.3U patent/CN207066453U/en active Active
Cited By (3)
| 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 |
| CN110466893A (en) * | 2019-07-24 | 2019-11-19 | 长沙誉美达光电技术有限责任公司 | A kind of inertia sensing device assembly sealed storage cabinet and its manufacturing process |
| CN114295129A (en) * | 2021-12-30 | 2022-04-08 | 率为科技(北京)有限责任公司 | Anti-electromagnetic interference light and small optical fiber inertial navigation system for intelligent driving |
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