CN108006410A - A kind of twin shaft indexing mechanism for Strapdown Inertial Navigation System location position - Google Patents
A kind of twin shaft indexing mechanism for Strapdown Inertial Navigation System location position Download PDFInfo
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- CN108006410A CN108006410A CN201711132197.4A CN201711132197A CN108006410A CN 108006410 A CN108006410 A CN 108006410A CN 201711132197 A CN201711132197 A CN 201711132197A CN 108006410 A CN108006410 A CN 108006410A
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- inside casing
- outline border
- navigation system
- twin shaft
- indexing mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 37
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- 239000011796 hollow space material Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000000306 component Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 238000012360 testing method Methods 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/021—Locking means for rotational movement
- F16M2200/024—Locking means for rotational movement by positive interaction, e.g. male-female connections
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of twin shaft indexing mechanism for Strapdown Inertial Navigation System location position, belong to SERVO CONTROL field, including base body, cover assembly, outer frame members and frame members, the lock-out state of interior outer frame members and the conversion of working status are realized with the work that matches of outer frame members by cover assembly, and outer frame members realize the location position of inertial measurement cluster with the orthogonal rotation of frame members.The twin shaft indexing mechanism of the present invention, by the way that interior outer frame members and inertial measurement cluster are multiplexed integrated design and structure optimization, greatly reduce the volume of twin shaft indexing mechanism, reduce installation difficulty, effectively realize indexing function of the inertial measurement cluster in quadrature shaft, solve the problems, such as to need dismounting during inertial measurement cluster location position, greatly improve the calibration efficiency of inertial measurement cluster, improve the practicality and convenience of Strapdown Inertial Navigation System.
Description
Technical field
The invention belongs to SERVO CONTROL field, and in particular to a kind of twin shaft indexing for Strapdown Inertial Navigation System location position
Mechanism.
Background technology
Inertial navigation system (abbreviation " inertial navigation system ") is the core of flight control system, is the accuracy at target of aircraft
Provide safeguard with performance, with the continuous development of vehicle technology, have more for the service precision of inertial navigation system
It is required that also promote the further development of inertial navigation system.
Existing inertial navigation system mainly includes Methods of Strapdown Inertial Navigation System, analytic expression inertial navigation system and semi analytic formula inertial navigation system
System.Wherein, analytic expression inertial navigation system is that platform stable follows system in the inertia of inertial space, its direct analogue navigation coordinate
System, calculates simply, can isolate the angular movement of carrier, and system accuracy is higher, but its is complicated, and volume is big, and manufacture is of high cost,
Using being subject to certain restrictions；Semi analytic formula inertial navigation system is also known as local horizontal inertial navigation system, there is a three-axle steady platform, platform
Face parallel local level all the time, although its concealment is preferable, short-term accuracy and high stability, it determines also brighter
Aobvious, longer especially with the time, its position error is bigger, expensive along with its equipment, can not extensive use, because
And its application is also limited be subject to larger；Methods of Strapdown Inertial Navigation System is by by inertial measurement cluster (such as gyroscope and accelerometer
Deng) be directly installed on aircraft, naval vessels, guided missile etc. and need in the main body of navigation information, measuring signal is converted using computer
For navigational parameter, it has the advantages that system bulk is small, light-weight, cost is low, easy to maintain, therefore is widely applied to flight
In device control system.
The inertial measurement cluster of existing Methods of Strapdown Inertial Navigation System (referred to as " used group ") is directly anchored in aircraft bay section, by
The change of portion's device parameters and stress release in the inner, can cause a whole used group parameter constantly to change with the time, therefore, in order to
Ensure the service precision of used group, it is necessary to take periodic cyclic to test it, the method taken in the prior art be first by used group from
Disassembled on aircraft, the enterprising row position calibration of ground turret plant is placed on, then again by used group of good installation of location position
Return in aircraft.But it could meet to use, it is necessary to often carry out calibration and safeguard since carry-on used group of retention cycle is short
It is required that this greatly reduces the work efficiency of Methods of Strapdown Inertial Navigation System, add Methods of Strapdown Inertial Navigation System application and maintenance into
This.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides one kind to be used for Strapdown Inertial Navigation System position
The twin shaft indexing mechanism of calibration, wherein being integrated in by the way that ground is demarcated turntable optimization in twin shaft indexing mechanism, is turned by the twin shaft
The indexing of position mechanism is directly realized by the automatic Calibration of inertial measurement cluster, and the inertia for efficiently solving Methods of Strapdown Inertial Navigation System is surveyed
Amount component needs the problem of often calibration is safeguarded, reduces the repair and maintenance cost of inertial measurement cluster, improves strapdown and be used to
The work efficiency of guiding systems, reduces the application cost of Methods of Strapdown Inertial Navigation System, has promoted the further of Methods of Strapdown Inertial Navigation System
Development.
To achieve the above object, the present invention provides a kind of twin shaft indexing mechanism for Strapdown Inertial Navigation System location position,
It includes being installed in aircraft bay section for the base body of accommodating twin shaft indexing mechanism main element, it is characterised in that
The base body is the frame structure of inner hollow, its over top is provided with cover assembly, the cover assembly
The outer frame members and frame members for being mutually matched work are provided with the base body hollow space of lower section；Wherein,
The cover assembly is arranged at the top of the base body and by the base body top seal, it includes middle part and opens up
There is the upper cover of through hole, be arranged in the through hole and axially offer the locking bed of through hole, be vertically arranged to the locking bed axis
Into through hole and can external force driving under vertically the sliding nut of alternating translational and respectively with the sliding nut and the lock
Tight seat is mutually matched the rotation axis of connection, and then the sliding nut can drive the rotation axis to carry out vertical alternating translational；
The outer frame members are arranged in the space of the base body inner hollow, it is offered for inner hollow and bottom
The frame structure of through hole, including top match with the rotation axis and connect and can vertically be put down under the drive of the rotation axis
The outline border of shifting, the fixed tooth disk being arranged in the outline border bottom through-hole, be fixedly installed on the base body bottom with to be described fixed
Fluted disc provides the fixed tooth disk seat of support, and the outline border can carry out vertical translation under rotation axis drive and can be driven in external force
Under be rotated around vertical axis；
The frame members are arranged in the outline border, it includes the inside casing for being equipped with inertial measurement cluster, the inside casing
Both sides be horizontally arranged with inside casing rotation axis and the inside casing be fixed on the outline border with described with the inside casing rotation axis
Outline border translates and/or rotation, and the locking clamping block being bonded can be matched with the sliding nut bottom surface by being provided with the top of the inside casing,
And the bottom of the inside casing is provided with and can be intermeshed with the fixed tooth disk to lock the active toothed disk of the inside casing, the inside casing can
It is rotated under external force driving around the inside casing rotation axis, so as to pass through the orthogonal rotation of the inside casing and the outline border
Transhipment is moved to realize the location position of the inertial measurement cluster in the inside casing.
As a further improvement on the present invention, it is axially disposed in the axially extending bore of the locking bed to have lower end and the cunning
Dynamic nut is with the Screw of Worm Gear of screw thread matching connection, and matched be provided with upper end of the Screw of Worm Gear can drive its rotation
The locking worm screw of movement, then the Screw of Worm Gear can be vertical reciprocal flat by sliding nut progress described in rotational movement
Move.
As a further improvement on the present invention, the side of the inside casing is provided with inside casing electric rotating machine and inside casing indexing tooth
Wheel, the inside casing indexing gear are set in vertical annular, it can be mutually matched company with the output rotor of the inside casing electric rotating machine
Connect and realize that the inside casing is moved around the inside casing rotation axis under its driving.
As a further improvement on the present invention, first angle measurement assembly is provided with the inside casing, for real-time, smart
Really feed back the rotating angle position of the inside casing.
As a further improvement on the present invention, second angle measurement assembly is provided with the outline border, for real-time, smart
Really feed back the rotating angle position of the outline border.
As a further improvement on the present invention, outline border electric rotating machine is provided between the fixed tooth disk seat and the outline border,
Its output rotor is connected with the outline border to drive it to carry out pivoting, and the outline border electric rotating machine and the fixed tooth disk seat
Between be vertically provided with first straight line swivel bearing.
As a further improvement on the present invention, be provided with the cover assembly with it is described locking worm screw match connect and can
The locking motor for driving it to move.
As a further improvement on the present invention, the first angular contact axis is provided between the Screw of Worm Gear and the locking bed
Hold, and/or the second angular contact bearing is provided between the inside casing rotation axis and the outline border.
As a further improvement on the present invention, second straight line rotation axis is provided between the rotation axis and the locking bed
Hold.
As a further improvement on the present invention, the rotatable angle of the inside casing is not less than 270 °, and/or the outline border can
Rotating angle is not less than 270 °.
In general, by the contemplated above technical scheme of the present invention compared with prior art, have below beneficial to effect
Fruit：
(1) the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position of the invention, by by interior outer frame members with
Inertial measurement cluster is multiplexed integrated design, effectively realizes indexing function of the inertial measurement cluster in quadrature shaft, solves
The problem of dismounting is needed during inertial measurement cluster location position, greatly improve the calibration efficiency of inertial measurement cluster, improves
The practicality and convenience of Strapdown Inertial Navigation System；
(2) the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position of the invention, passes through outer frame members in optimization
Structure, reduce the volume size of twin shaft indexing mechanism, substantially reduce the requirement that bay section volume is housed for aircraft, drop
The low setting difficulty of inertial measurement cluster, substantially increases the practicality and compatibility；
(3) the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position of the invention, by setting active toothed disk and determining
Fluted disc matches work and locks the locking that briquetting carries out inside casing, greatly improves the reliable lock of twin shaft indexing mechanism
Property, it ensure that the job stability of inertial measurement cluster；
(4) the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position of the invention, structure design is compact, and assembling is torn open
It is convenient to unload, easily operated and repair and maintenance, can substantially reduce use, the calibration cost of inertial measurement cluster, improves inertial navigation
The accuracy and economy of system, have promoted the application and development of strap-down inertial navigation system.
Brief description of the drawings
Fig. 1 is the overall structure of the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position in the embodiment of the present invention
Schematic diagram；
In all of the figs, same reference numeral represents identical technical characteristic, is specially：1. base body, 2. upper covers,
3. locking bed, 4. sliding nuts, 5. angular contact ball bearings, 6. Screw of Worm Gear, 7. locking worm screws, 8. locking motors, the rotation of 9. straight lines
Shaft is held, 10. rotation axis, 11. angle measure components, 12. outline borders, 13. angular contact ball bearings, 14. active toothed disks, 15. fixed tooth disks,
16. fixed tooth disk seat, 17. Linear rotary shafts are held, 18. outline border electric rotating machines, 19. angle measure components, 20. inside casing indexing gears,
21. inside casing, 22. inside casing rotation axis, 23. locking clamping blocks, 24. inside casing electric rotating machines.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
In addition, as long as technical characteristic involved in each embodiment of invention described below is each other not
Forming conflict can be mutually combined.
The overall structure signal of the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position in the embodiment of the present invention
Scheme as shown in fig. 1, wherein mainly including base body 1, being arranged at the cover assembly of the top of base body 1, be arranged in base body 1
Outer frame members and the frame members that are arranged in outer frame members；Further specifically, cover assembly includes upper cover 2, locking bed
3rd, sliding nut 4, Screw of Worm Gear 6, locking worm screw 7, locking motor 8, rotation axis 10；Outer frame members include outline border 12, active toothed disk
14th, fixed tooth disk 15, fixed tooth disk seat 16, outline border electric rotating machine 18；Frame members include inside casing 21, inside casing indexing gear 20, inside casing
Rotation axis 22, locking clamping block 23, inside casing position rotaring motor 24.
Further, the base body 1 in a preferred embodiment is the frame structure of inner hollow, its top is to open completely
The design of formula opening is put, its bottom is designed for semi open model and offers ladder hole in bottom centre；Further, in base body
1 over top is provided with cover assembly, and the upper cover 2 of cover assembly is open-topped framework knot in a preferred embodiment
Structure, its bottom is matched with the top of base body 1 so as to by the top seal of base body 1, and the middle part of upper cover 2 offers ladder and leads to
Hole, to house the main element of cover assembly；Further, locking bed 3 is equipped with the ladder hole of upper cover 2, it is in rank
Terraced cylindrical structural, and its middle part offers the ladder hole of accommodating Screw of Worm Gear 6 and is provided with what is matched with Screw of Worm Gear 6
Worm screw 7 is locked, Screw of Worm Gear 6 is installed in locking bed 3 with angular contact ball bearing 5 and can opposite lock in a preferred embodiment
3 rotary motion of tight seat；Further, it is preferable to which the Screw of Worm Gear 6 in embodiment is ladder shaft type, its one end is worm gear section, another
Hold as leading screw section, wherein, worm gear section is engaged with locking worm screw 7, and external screw thread is provided with leading screw section and passes through rotation with sliding nut 4
Turn secondary connection transmission；Further, the side of locking worm screw 7 is provided with locking motor 8, it can drive locking locking worm screw 7
Rotate, then drive Screw of Worm Gear 6 to rotate by locking worm screw 7 to drive sliding nut 4 to move up and down.
Further, the lower section of locking bed 3 is provided with rotation axis 10, its middle part offers through hole to be set in locking bed 3
On the periphery wall of bottom, the through-hole wall of rotation axis 10 matches connection with 4 outer wall of sliding nut, so as to follow sliding nut into
Row rotary motion, and the bottom margin of rotation axis 10 and the top of outline border 12 are connected with each other, so as to be moved down on sliding nut 4
Drive rotation axis 10 to move up and down when dynamic, then drive connected outline border 12 to move up and down by rotation axis 10；Further preferably
Ground, is provided with Linear rotary shaft between rotation axis 10 and locking bed 3 in a preferred embodiment and holds 9, to aid in rotation axis
10 are rotated around locking bed 3.
Further, outer frame members are provided with 1 inner space of base body below cover assembly, it includes and upper cover
The outline border 12 that rotation axis 10 in component is connected with each other, top and the rotation axis 10 of outline border 12 are connected with each other, its accommodated inside has
Frame members, and can be in the opposite through hole for offering accommodating inside casing rotation axis 22 in both sides；It is further, it is preferable to outer in embodiment
12 bottom of frame offers the ladder hole to match with fixed tooth disk 15 and will not between fixed tooth disk 15 when outline border 12 moves up and down
Interfere；Further, the top of fixed tooth disk 15 offers fluted disc, its bottom is installed on fixed tooth disk seat 16, depending on
Fluted disc seat 16 is corresponded on the ladder hole of 1 bottom of base body, its side perisporium is mutually matched with outline border electric rotating machine 18；It is excellent
The outline border electric rotating machine 18 in embodiment is selected to be arranged in outline border motor cabinet, its rotor of output shaft axle is connected with each other with outline border to drive
Outline border 12 moved around axis, and is fixedly connected between outline border electric rotating machine 18 and outline border motor cabinet with bearing, then by outline border
Motor cabinet is matched with the side perisporium of fixed tooth disk seat 16, between outline border motor cabinet and fixed tooth disk seat 16 in a preferred embodiment
17 are held with Linear rotary shaft and is mutually matched connection, so that when outline border 12 moves up and down, can drive outline border electric rotating machine 18 together
Move up and down, and during the indexing of outline border 12, the rotor of outline border electric rotating machine 18 can drive outline border 12 to carry out pivoting movement, excellent
That selects the outline border 12 in embodiment moves rotatable angle not less than 270 ° around axis.
Further, it is preferable to 12 bottom of outline border in embodiment is provided with angle measure component 19, it can be outside Real-time Feedback
Outline border 12 is around the rotating angle of vertical rotation axis in the angle that frame 12 is turned over, i.e. Real-time Feedback preferred embodiment.
Further, inside casing 21 being internally provided with outline border 12, it is used for the core component for installing inertial measurement cluster,
Inertial measurement cluster in one preferred embodiment includes light gyro and accelerometer, it is fixed in inside casing 21, from
And orthogonal rotation can be carried out by inside casing 21 and outline border 12 to realize location position；Further, it is preferable to the inside casing in embodiment
21 are arranged in outline border 12, its top open up it is fluted and be equipped with can with 4 bottom surface of sliding nut be bonded or separated locking
Briquetting 23, its both sides are horizontally arranged with inside casing rotation axis 22 respectively, and the inside casing rotation axis 22 laterally set is opposite with outline border two
The cross through hole opened up on side is correspondingly arranged for the spacing and installation to inside casing 21 in outline border 12；Further preferably
Ground, preferably carries out Matching installation between the inside casing 21 and outline border 12 in embodiment, so that inside casing 21 can with angular contact ball bearing 13
Rotated around transverse rotation axis, rotatable angle is not less than 270 ° in a preferred embodiment for it.
Further, the side of inside casing 21 is provided with vertical cricoid inside casing indexing gear 20, and with it matchingly
Inside casing electric rotating machine 24 is provided with, 24 output rotor of inside casing electric rotating machine is connected with each other with inside casing indexing gear 20, inside casing rotation
Motor 24 drives inside casing indexing gear 20 to rotate, and then drives inside casing 21 to rotate about axis 22 and is rotated；It is further excellent
Selection of land, inside casing electric rotating machine 24 are fixedly arranged preferably to the top of outline border 12, and angular surveying group is preferably provided with inside casing 21
Part 11, with accurate and Real-time Feedback inside casing 21 rotation angle；Further, the bottom of inside casing 21 is provided with active toothed disk 14, its
It can be mutually matched and lock with being arranged at the fixed tooth disk 15 of 12 bottom of outline border.
Twin shaft indexing mechanism in the embodiment of the present invention, can be loaded inertial measurement cluster and by its base body by its inside casing 21
1 is installed in aircraft bay section, so as to provide safeguard to the accuracy at target and performance of aircraft.
Before aircraft takeoff, the driving locking worm screw 7 of locking motor 8 in cover assembly rotates, and locking worm screw 7 drives snail
Wheel leading screw 6 is rotated down, that is, drives sliding nut 4 to move up, then rotation axis 10 moves up therewith with outline border 12, phase
Answer, outline border 12 drives inside casing 21 to also move up, then so that the active toothed disk 14 of 21 bottom of inside casing and the fixed tooth disk of its bottom
15 separation, unlock so as to fulfill the position of inertial measurement cluster, further, inside casing electric rotating machine 24 and outline border after unlock in place
Electric rotating machine 18 works, and inside casing electric rotating machine 24 drives inside casing 21 to rotate around inside casing rotation axis 22, realizes inside casing 22
Indexing function, and pass through 11 Real-time Feedback inside casing of High-precision angle feedback component, 21 rotary angle position；And outline border electric rotating machine
18 driving outline borders 12 rotate around outline border axis, realize outline border indexing function, and real by High-precision angle feedback component 19
When feed back 12 rotary angle position of outline border, when interior outline border is indexable, inertia measurement device work and gathered data.
After inertia measurement device data acquisition works and completes location position, interior outline border returns to initial bit respectively
To put, i.e., locking motor 8 works, and driving locking worm screw 7 is rotated to drive Screw of Worm Gear 6 to move up, correspondingly, sliding nut 4
Move down and drive outline border 12 to move downward, then the locking clamping block 23 at the top of inside casing 21 is pressed with the bottom surface of sliding nut 4,
The active toothed disk 14 of 21 bottom of inside casing is engaged with the matching of fixed tooth disk 15 of its bottom, so as to fulfill inertial measurement cluster in inside casing 21
The location position process completion of locking, at this time inertial measurement cluster, aircraft can normally take off.
The twin shaft indexing mechanism for Strapdown Inertial Navigation System location position of the present invention, its by by inertial measurement cluster and
Frame members integrated design, then interior outline border orthogonal pivoting motion is set to meet that the location position of inertial measurement cluster is adjusted,
The process that must be disassembled when eliminating inertial measurement cluster location position, is greatly saved the position mark of inertial measurement cluster
Fix time, improve calibration and the service efficiency of inertial measurement cluster, and between interior outer frame members and base body, cover assembly
Structure is preferably provided with, and further reduces the volume of twin shaft indexing mechanism, reduces the installation difficulty of twin shaft indexing mechanism, is improved
Twin shaft indexing mechanism using compatibility, promoted its extensive use.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of twin shaft indexing mechanism for Strapdown Inertial Navigation System location position, it include being installed in aircraft bay section with
For housing the base body (1) of twin shaft indexing mechanism main element, it is characterised in that
The base body (1) is the frame structure of inner hollow, its over top is provided with upper cover (2) component, the upper cover (2)
Outline border (12) component and frame members for being mutually matched work are provided with base body (1) hollow space below component；Wherein,
Upper cover (2) component is arranged at the top of the base body (1) and by the base body (1) top seal, during it includes
Portion offers the upper cover (2) of through hole, is arranged in the through hole and axially offers the locking bed (3) of through hole, is vertically arranged to
In locking bed (3) axially extending bore and can external force driving under vertically the sliding nut (4) of alternating translational and respectively with
The sliding nut (4) and the locking bed (3) are mutually matched the rotation axis (10) of connection, and then the sliding nut (4) can band
The dynamic rotation axis (10) carries out vertical alternating translational；
Outline border (12) component is arranged in the space of the base body (1) inner hollow, it is opened for inner hollow and bottom
Frame structure equipped with through hole, including top matched with the rotation axis (10) connection and can be in the drive of the rotation axis (10)
The lower outline border (12) for carrying out vertical translation, the fixed tooth disk (15) being arranged in the outline border (12) bottom through-hole, be fixedly installed on
To provide the fixed tooth disk seat (16) of support for the fixed tooth disk (15), the outline border (12) can be in institute for base body (1) bottom
Rotation axis (10) is stated to drive lower progress vertical translation and can be rotated around vertical axis under external force driving；
The frame members are arranged in the outline border (12), it includes the inside casing (21) for being equipped with inertial measurement cluster, described
The both sides of inside casing (21) are horizontally arranged with inside casing rotation axis (22) and are fixed the inside casing (21) with the inside casing rotation axis (22)
To translate and/or rotate with the outline border (12) on the outline border (12), being provided with the top of the inside casing (21) can be with institute
State sliding nut (4) bottom surface matching fitting locking clamping block (23), and the bottom of the inside casing (21) be provided with can with it is described fixed
To lock the active toothed disk (14) of the inside casing, the inside casing (21) can be under external force driving around described interior for fluted disc (15) intermeshing
Frame rotation axis (22) is rotated, so as to be realized by the orthogonal pivoting motion of the inside casing and the outline border (12)
The location position of inertial measurement cluster in the inside casing (21).
2. the twin shaft indexing mechanism according to claim 1 for Strapdown Inertial Navigation System location position, wherein, the locking
The axially disposed Screw of Worm Gear for thering is lower end to match connection with screw thread with the sliding nut (4) in the axially extending bore of seat (3)
(6), and the Screw of Worm Gear (6) upper end it is matched be provided with the locking worm screw (7) that can drive its rotary motion, then institute
Vertical alternating translational can be carried out by sliding nut described in rotational movement (4) by stating Screw of Worm Gear (6).
3. the twin shaft indexing mechanism according to claim 1 or 2 for Strapdown Inertial Navigation System location position, wherein, it is described
The side of inside casing (21) is provided with inside casing electric rotating machine (24) and inside casing indexing gear (20), and the inside casing indexing gear (20) is in
Vertical annular is set, it can be mutually matched with the output rotor of the inside casing electric rotating machine (24) and be connected and realized under its driving
The inside casing (21) is moved around the inside casing rotation axis (22).
4. according to the twin shaft indexing mechanism according to any one of claims 1 to 3 for Strapdown Inertial Navigation System location position, its
In, first angle measurement assembly (11) is provided with the inside casing (21), for feeding back the inside casing (21) precisely in real time
Rotating angle position.
5. the twin shaft indexing mechanism according to any one of claims 1 to 4 for Strapdown Inertial Navigation System location position, its
In, second angle measurement assembly (19) is provided with the outline border (12), for feeding back the outline border (12) precisely in real time
Rotating angle position.
6. according to the twin shaft indexing mechanism according to any one of claims 1 to 5 for Strapdown Inertial Navigation System location position, its
In, be provided with outline border electric rotating machine (18) between the fixed tooth disk seat (16) and the outline border (12), its output rotor with it is described
Outline border (12) is connected to drive its to carry out pivoting, and between the outline border electric rotating machine (18) and the fixed tooth disk seat (16)
It is vertically provided with first straight line swivel bearing (17).
7. the twin shaft indexing mechanism according to claim 2 for Strapdown Inertial Navigation System location position, wherein, the upper cover
(2) it is provided with component and matches the locking motor (8) that connects and can drive it to move with the locking worm screw (7).
8. the twin shaft indexing mechanism for Strapdown Inertial Navigation System location position according to any one of claim 2~7, its
In, the first angular contact bearing (5), and/or inside casing rotation are provided between the Screw of Worm Gear (6) and the locking bed (3)
The second angular contact bearing (13) is provided between shaft (22) and the outline border (12).
9. according to the twin shaft indexing mechanism according to any one of claims 1 to 8 for Strapdown Inertial Navigation System location position, its
In, second straight line swivel bearing (9) is provided between the rotation axis (10) and the locking bed (3).
10. according to the twin shaft indexing mechanism according to any one of claims 1 to 9 for Strapdown Inertial Navigation System location position,
Wherein, the rotatable angle of the inside casing (21) is not less than 270 °, and/or the outline border (12) rotatable angle is not less than
270°。
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| CN109631879A (en) * | 2018-11-15 | 2019-04-16 | 湖北三江航天红峰控制有限公司 | Orthogonal locking double-shaft indexing mechanism |
| CN109677617A (en) * | 2019-01-22 | 2019-04-26 | 广州市妙伊莲科技有限公司 | A kind of stable type unmanned flight's transport device for logistics distribution |
| CN110488853A (en) * | 2019-08-29 | 2019-11-22 | 北京航空航天大学 | A kind of calculation method reducing the hybrid inertial navigation system stability contorting instruction that shaft whirling motion influences |
| CN110763254A (en) * | 2019-10-17 | 2020-02-07 | 哈尔滨工程大学 | Double-shaft indexing mechanism based on MEMS navigation system and calibration method thereof |
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| CN112196368A (en) * | 2020-09-30 | 2021-01-08 | 湖南航天机电设备与特种材料研究所 | Bolt type locking mechanism and inertial navigation device |
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| CN114001735A (en) * | 2021-11-02 | 2022-02-01 | 湖南航天机电设备与特种材料研究所 | Bolt type locking mechanism and rotary inertia measuring device |
| CN114001735B (en) * | 2021-11-02 | 2023-11-14 | 湖南航天机电设备与特种材料研究所 | Bolt formula locking mechanism and rotation type inertial measurement unit |
| CN115164934A (en) * | 2022-06-10 | 2022-10-11 | 北京理工导航控制科技股份有限公司 | Biaxial rotation mechanism and inertial navigation device |
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