CN213632142U

CN213632142U - Airborne horizontal leveling device

Info

Publication number: CN213632142U
Application number: CN202022979716.4U
Authority: CN
Inventors: 李大臻; 王路; 张涛; 郭峰
Original assignee: Sichuan Xihua General Aviation Co ltd
Current assignee: Sichuan Xihua General Aviation Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-06
Anticipated expiration: 2030-12-09

Abstract

The application relates to an airborne horizontal leveling device, which belongs to the technical field of airplane measurement and comprises a mounting plate fixed on a machine body, wherein an arc-shaped guide rail is arranged on the mounting plate, the plane where the arc-shaped guide rail is located is vertical to the plane where the mounting plate is located, and the guide rail is inwards concave towards the direction far away from the mounting plate; the airborne horizontal leveling device also comprises a fixed plate used for installing an inertia measurement unit, wherein a plurality of rollers are arranged on the fixed plate, and the rollers are symmetrically distributed on two sides of the fixed plate along the plane where the center of gravity of the fixed plate is located; the length direction of the fixed plate is parallel to the length direction of the guide rail, and the rollers are arranged on the fixed plate along the length direction of the fixed plate. The fixed plate is pushed to a certain height, and the fixed plate drives the roller to slide back and forth along the guide rail under the action of the inertia measurement unit and the self gravity; when the fixed plate is stable, the plane on which the fixed plate is located is a horizontal plane, the inertia measuring unit is also located at the horizontal position, the adjustment is simple, and the operation is practical.

Description

Airborne horizontal leveling device

Technical Field

The application relates to the technical field of airplane measurement, in particular to an airborne horizontal leveling device.

Background

In the flying process of an airplane, in order to obtain airplane state information, an inertia measurement unit is required to be installed on the airplane: an Inertial Measurement Unit (IMU) is an electronic device that combines accelerometers and gyroscopes, and sometimes magnetometers, to measure and report on a particular force, angular velocity, and magnetic field around an object; when the inertial measurement unit is installed, the inertial measurement unit needs to be adjusted to be horizontal so as to obtain more accurate data.

At present, an inertia measurement unit is fixed in a machine body through a stud, a slide block is arranged on the inertia measurement unit, the slide block is arranged on the stud in a sliding and penetrating mode, a nut is connected to the stud in a threaded mode, and the slide block is connected to the nut in a bearing mode; when the inertia measurement unit is leveled, the bolt moves on the stud by screwing the bolt, so that the sliding block is driven to slide along the stud, and the inertia measurement unit is leveled.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the inertia measurement unit is leveled, the heights of four corners of the inertia measurement unit need to be adjusted, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to carry out the leveling to inertial measurement unit for convenience, this application provides an airborne level leveling device.

The application provides an airborne level adjusting device adopts following technical scheme:

an airborne horizontal leveling device comprises a mounting plate fixed on a machine body, wherein an arc-shaped guide rail is arranged on the mounting plate, the plane of the arc-shaped guide rail is vertical to the plane of the mounting plate, and the guide rail is inwards concave towards the direction far away from the mounting plate; the airborne horizontal leveling device also comprises a fixed plate used for mounting an inertia measurement unit, wherein a plurality of rollers are arranged on the fixed plate, and the rollers are symmetrically distributed on two sides of the fixed plate along the plane where the center of gravity of the fixed plate is located; the length direction of the fixed plate is parallel to the length direction of the guide rail, and the rollers are arranged on the fixed plate along the length direction of the fixed plate.

By adopting the technical scheme, when the inertia measurement unit is leveled, the inertia measurement unit is arranged on the fixing plate; then, the fixed plate is pushed to a certain height, and the fixed plate drives the roller to slide back and forth along the guide rail under the action of the inertia measurement unit and the self gravity; when the fixing plate is stable, the plane of the fixing plate is a horizontal plane, the inertia measuring unit is also positioned at the horizontal position, the adjustment is simple, and the operation is practical; meanwhile, the rollers are convenient to drive the fixing plate to move along the guide rail, the influence of friction force on the leveling process is reduced, and the adjusting precision is improved.

Optionally, the lowest position of the guide rail is provided with a first magnet, and the roller is provided with a second magnet with a magnetic pole opposite to that of the first magnet.

Through adopting above-mentioned technical scheme, at the effect of first magnetic force, the direction motion of first magnet is kept away from to the concrete orientation of second magnet, and then drives the second magnet of symmetric distribution in first magnet both sides and be in balanced position, has further improved the accuracy of leveling.

Optionally, the second magnet is slidably disposed on the guide rail, a sliding direction of the second magnet is along a vertical direction, and a first driving member for driving the second magnet to slide is disposed on the fixing plate.

Through adopting above-mentioned technical scheme, for reducing the error of leveling in-process, improve the height of fixed plate, and then improved the fixed plate displacement volume, meanwhile, order about the second magnet through first driving piece and slide and shift out the guide rail to make the terminal surface of second magnet and the bottom surface laminating of guide rail, and then reduced the influence that the second magnet produced to the fixed plate slides, improved the accuracy of leveling.

Optionally, the first driving part includes a motor disposed on the mounting plate, the length direction of the output shaft of the motor is parallel to the plane of the mounting plate, a toothed ring is disposed on the output shaft of the motor, a rack engaged with the toothed ring is disposed on the second magnet, and the length direction of the rack is perpendicular to the length direction of the output shaft of the motor.

By adopting the technical scheme, the motor is started, the motor drives the gear ring to rotate, the gear ring rotates to drive the rack to operate, the rack operates to drive the second magnet to operate, and the second magnet is driven to move to a required position, so that the operation is simple and practical; the transmission of the gear ring and the rack has the advantage of stable transmission; meanwhile, the motor has the self-locking performance and fixes the second magnet to a required position.

Optionally, the first magnet and the second magnet are both electromagnets, a first switch for controlling the first magnet is arranged on the mounting plate, and the first switch is electrically communicated with the first magnet; be provided with the second switch that is used for controlling the second magnet on the mounting panel, the second switch communicates with second magnet electricity.

By adopting the technical scheme, the electromagnet generates a stronger magnetic field after being electrified, so that the fixing plate is driven to be positioned at the lowest position of the guide rail, the fixing plate is positioned at the horizontal position, and the electromagnet enables the first magnet and the second magnet to have stronger repulsive force, so that the influence of the friction force between the roller and the guide rail on the leveling precision of the fixing plate is reduced; after the electromagnet is powered off, the magnetic field disappears, and then the influence of the first magnet and the second magnet on the inertia measurement unit is reduced.

Optionally, the mounting panel is provided with the butt plate that is used for fixed plate in the slip, the slip direction perpendicular to guide rail place's plane of butt plate, be provided with on the mounting panel and be used for driving the gliding second driving piece of butt plate.

Through adopting above-mentioned technical scheme, after the fixed plate leveling, order about butt joint board slip butt fixed plate through the second driving piece, and then fix the fixed plate to required department, reduced the fixed plate and carelessly rocked the influence to the leveling precision.

Optionally, the second driving part comprises an electric push rod arranged on the mounting plate, the length direction of the electric push rod is parallel to the sliding direction of the butt plate, and the butt plate is fixedly connected to an output shaft of the electric push rod.

By adopting the technical scheme, the electric push rod is started, drives the abutting plate to slide and abut against the fixed plate, so that the fixed plate is fixed to a required position, and the operation is simple and practical; meanwhile, the electric push rod has the advantage of stable transmission.

Optionally, the abutting plate is provided with an anti-slip piece, and the anti-slip piece is used for increasing the friction force between the abutting plate and the fixing plate.

Through adopting above-mentioned technical scheme, the setting up of antiskid has increased the frictional force between butt board and the fixed plate, and then has reduced fixed plate and butt board and has produced the relative gliding possibility, and then has ensured that the fixed plate is located horizontal position.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixed plate is pushed to a certain height, and the fixed plate drives the roller to slide back and forth along the guide rail under the action of the inertia measurement unit and the self gravity; when the fixing plate is stable, the plane of the fixing plate is a horizontal plane, the inertia measuring unit is also positioned at the horizontal position, the adjustment is simple, and the operation is practical;

2. under the action of the magnetic force of the first magnet, the second magnet moves in a direction away from the first magnet, so that the second magnets symmetrically distributed on two sides of the first magnet are driven to be in a balanced position, and the leveling accuracy is further improved;

3. after the fixed plate leveling, order about butt joint board slip butt fixed plate through the second driving piece, and then fix the fixed plate to required department, reduced the fixed plate and carelessly rocked the influence to the leveling precision.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a cross-sectional view of an arc-shaped plate in the embodiment of the present application, and is intended to show a structural schematic diagram of a first magnet.

Description of reference numerals: 1. mounting a plate; 2. an arc-shaped plate; 3. a fixing plate; 4. a roller; 5. a first magnet; 51. a magnetic block; 6. a second magnet; 7. a motor; 8. a toothed ring; 9. a rack; 10. a butt joint plate; 11. an electric push rod; 12. a support pillar; 13. a chute; 14. a fixed block; 15. a second bolt; 16. supporting legs; 17. mounting grooves; 18. accommodating grooves; 19. a support plate; 20. a limiting column; 21. a first positioning groove; 22. a column; 23. an inertial measurement unit.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses airborne horizontal leveling device. Referring to fig. 1, the onboard horizontal leveling device comprises a mounting plate 1 for fixing to a fuselage, wherein a first bolt (not shown in the figure) is connected to the mounting plate 1 in a threaded manner and is used for fixing the mounting plate 1 to the fuselage; be provided with the arc guide rail on the mounting panel 1, the plane at arc guide rail place is perpendicular with the plane at mounting panel 1 place, and the welding has support column 12 on the mounting panel 1, and the guide rail is including welding arc 2 on support column 12, and the direction indent of mounting panel 1 is kept away from to arc 2 orientation has seted up spout 13 on the arc 2.

Referring to fig. 1, the onboard horizontal leveling device further comprises a fixing plate 3 for mounting an inertia measuring unit 23, a fixing block 14 is integrally formed on the inertia measuring unit 23, the fixing block 14 is located at the bottom of the inertia measuring unit 23, a second bolt 15 is in threaded connection with the fixing block 14, and a thread groove for threaded connection of the second bolt 15 is formed in the fixing plate 3; the second bolt 15 is screwed, and the second bolt 15 is screwed on the fixing plate 3, and the inertia measuring unit 23 is fixedly connected on the fixing plate 3.

Referring to fig. 1, a plurality of rollers 4 are arranged on a fixing plate 3, in the embodiment, four rollers 4 are arranged, a supporting leg 16 is welded on one side surface of the fixing plate 3 close to a mounting plate 1, and the rollers 4 are arranged on the end parts of the supporting legs 16 far away from the fixing plate 3; supporting leg 16 keeps away from the tip of fixed plate 3 and has seted up mounting groove 17, and the welding has the connecting axle on supporting leg 16, and the length direction of the length direction perpendicular to supporting leg 16 of connecting axle, simultaneously, the both ends of connecting axle all weld on the lateral wall of mounting groove 17, have seted up the installing port on gyro wheel 4, and gyro wheel 4 is pegged graft on the connecting axle.

Referring to fig. 1, the rollers 4 are symmetrically distributed on both sides of the fixing plate 3 along a plane where the center of gravity of the fixing plate 3 is located; the length direction of the fixed plate 3 is parallel to the length direction of the guide rail, and the rollers 4 are arranged on the fixed plate 3 along the length direction of the fixed plate 3.

The fixed plate 3 is pushed to a certain height, and the fixed plate 3 drives the roller 4 to slide back and forth along the guide rail under the action of the inertia measurement unit 23 and the self gravity; when the fixed plate 3 is stabilized, the plane in which the fixed plate 3 lies is the horizontal plane, and the inertial measurement unit 23 is also at the horizontal level.

Referring to fig. 1 and 2, in order to improve the leveling precision of the inertia measurement unit 23, a first magnet 5 is arranged at the lowest horizontal position of the guide rail, the first magnet 5 comprises two magnetic blocks 51, the ends with the same magnetic poles of the two magnetic blocks 51 are close to each other, the airborne horizontal leveling device further comprises a mounting block for mounting the two magnetic blocks 51, and a fixing groove is formed in the mounting block; the two magnetic blocks 51 are embedded in the mounting block and fixed in the fixed groove, so that the possibility of separation of the two magnetic blocks 51 is reduced; the roller 4 is provided with a second magnet 6 with the magnetic pole opposite to that of the first magnet 5, and the second magnet 6 is embedded on the supporting leg 16.

Under the repulsive force of the first magnet 5 and the second magnet 6, the two support legs 16 on the same vertical plane are symmetrically distributed on two sides of the guide rail along the central line of the guide rail, so that the leveling precision of the inertia measurement unit 23 is further improved.

Referring to fig. 1 and 2, in order to reduce the influence of the second magnet 6 on the sliding of the roller 4 along the guide rail, the second magnet 6 is slidably disposed on the guide rail, the sliding direction of the second magnet 6 is along the vertical direction, the accommodating groove 18 is disposed at the lowest tooth of the guide rail, and the depth of the accommodating groove 18 on the guide rail is equal to the height of the second magnet 6, so as to reduce the height difference between the second magnet 6 and the bottom of the sliding groove 13, and reduce the influence on the roller 4.

Referring to fig. 1 and 2, a first driving member for driving the second magnet 6 to slide is arranged on the fixing plate 3, the first driving member includes a motor 7 arranged on the mounting plate 1, a supporting plate 19 is welded on the mounting plate 1, the motor 7 is fixedly connected to the supporting plate 19 through a third bolt, the length direction of an output shaft of the motor 7 is parallel to the plane of the mounting plate 1, a toothed ring 8 is arranged on the output shaft of the motor 7, the toothed ring 8 is welded on the output shaft of the motor 7, a notch communicated with the accommodating groove 18 is formed in the guide rail, a rack 9 meshed with the toothed ring 8 is arranged on the second magnet 6, one end of the rack 9 enters the accommodating groove 18 through the notch, and is welded on the mounting block, and the length direction of the rack 9 is perpendicular to the length direction of the. And starting the motor 7, wherein the motor 7 drives the gear ring 8 to rotate, and the gear ring 8 rotates to drive the rack 9 to move, so that the mounting block is driven to move out of or move out of the accommodating groove 18.

Referring to fig. 1 and 2, in order to reduce the possibility of separation of the toothed ring 8 and the rack 9, a limiting column 20 is welded on the mounting plate 1, the length direction of the limiting column 20 is perpendicular to the plane where the mounting plate 1 is located, a first positioning groove 21 is formed in the positioning column, and the rack 9 is slidably located in the first positioning groove 21 on the positioning column; a positioning block is arranged on the side wall of the rack 9, and a second positioning groove for the positioning block to slide is formed in the side wall of the first positioning groove 21 and on the positioning column; the positioning block is clamped in the second positioning groove, so that the possibility of separation of the rack 9 and the toothed ring 8 is reduced.

Referring to fig. 1 and 2, in order to reduce the influence of the first magnet 5 and the second magnet 6 on the inertia measurement unit 23, the first magnet 5 and the second magnet 6 are both electromagnets, which have the advantage of controllable magnetic field, and when the electromagnets are powered off, the magnetic field of the electromagnets disappears, thereby reducing the influence on the operation of the inertia measurement unit 23.

In order to control the on/off of the electromagnet, a first switch for controlling the first magnet 5 is arranged on the mounting plate 1, and the first switch is electrically communicated with the first magnet 5; a second switch for controlling the second magnet 6 is arranged on the mounting plate 1, and the first switch is electrically communicated with the second magnet 6.

Referring to fig. 1 and 2, in order to fix the position of the inertia measurement unit 23, the mounting plate 1 is slidably provided with an abutting plate 10 for fixing the fixed plate 3, the sliding direction of the abutting plate 10 is perpendicular to the plane of the guide rail, and the abutting plate 10 and the fixed plate 3 are located on the same horizontal plane; the slide abutting plate 10 abuts against the fixed plate 3, thereby fixing the inertia measurement unit 23 to a desired place.

Referring to fig. 1 and 2, in order to facilitate the sliding of the abutting plate 10, a second driving member for driving the abutting plate 10 to slide is arranged on the mounting plate 1, the second driving member includes an electric push rod 11 arranged on the mounting plate 1, an upright column 22 is welded on the mounting plate 1, a mounting opening is formed on the upright column 22, a body of the electric push rod 11 is clamped on a side wall of the mounting opening on the upright column 22, and is bonded on the upright column 22 through an adhesive; the length direction of the electric push rod 11 is parallel to the sliding direction of the abutting plate 10, the abutting plate 10 is fixedly connected to the output shaft of the electric push rod 11, and the abutting plate 10 is fixed to the output shaft of the electric push rod 11 through a third bolt.

Start electric putter 11, electric putter 11 drive butt joint board 10 slides and butt fixed plate 3, and then fixes fixed plate 3 to required department, easy operation is practical.

Referring to fig. 1 and 2, in order to reduce the possibility of the abutting plate 10 and the fixing plate 3 falling off, the abutting plate 10 is provided with an anti-slip member for increasing the friction force between the abutting plate 10 and the fixing plate 3, in this embodiment, the anti-slip member includes anti-slip lines provided on the abutting plate 10; the anti-slip pattern improves the friction between the abutment plate 10 and the fixing plate 3, thereby reducing the possibility of the abutment plate 10 falling off from the fixing plate 3.

In other embodiments, the anti-slip member may be replaced by a plurality of protrusions disposed on the fixing plate 3, and the fixing plate 3 is provided with grooves for the protrusions to be inserted.

The implementation principle of an airborne horizontal leveling device in the embodiment of the application is as follows:

when the inertia measurement unit 23 is leveled, the fixing plate 3 is pushed to a certain height, and the fixing plate 3 drives the roller 4 to slide back and forth along the guide rail under the action of the inertia measurement unit 23 and the self gravity; when the roller 4 no longer passes the second magnet 6, the motor 7 is started, and the motor 7 drives the second magnet 6 to move out of the accommodating groove 18.

And the first switch and the second switch drive the first magnet 5 and the second magnet 6 to be electrified respectively, so as to adjust the position of the supporting leg 16.

And starting the electric push rod 11, driving the abutting plate 10 to slide by the electric push rod 11 and abut against the fixed plate 3, and further fixing the leveled inertia measurement unit 23.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an airborne level adjusting device which characterized in that: the mounting plate comprises a mounting plate (1) used for being fixed on a machine body, wherein an arc-shaped guide rail is arranged on the mounting plate (1), the plane where the arc-shaped guide rail is located is vertical to the plane where the mounting plate (1) is located, and the guide rail is inwards concave towards the direction far away from the mounting plate (1); the airborne horizontal leveling device further comprises a fixing plate (3) used for mounting an inertia measurement unit (23), a plurality of rollers (4) are arranged on the fixing plate (3), and the rollers (4) are symmetrically distributed on two sides of the fixing plate (3) along a plane where the center of gravity of the fixing plate (3) is located; the length direction of the fixed plate (3) is parallel to the length direction of the guide rail, and the rollers (4) are arranged on the fixed plate (3) along the length direction of the fixed plate (3).

2. An airborne level-adjusting device according to claim 1, characterized in that: the guide rail level is provided with first magnet (5) in the lowest department, be provided with on gyro wheel (4) with first magnet (5) opposite second magnet (6) of magnetic pole.

3. An airborne level-adjusting device according to claim 2, characterized in that: the second magnet (6) is arranged on the guide rail in a sliding mode, the sliding direction of the second magnet (6) is vertical, and a first driving piece used for driving the second magnet (6) to slide is arranged on the fixing plate (3).

4. An airborne level-adjusting device according to claim 3, characterized in that: the first driving piece comprises a motor (7) arranged on the mounting plate (1), the length direction of an output shaft of the motor (7) is parallel to the plane of the mounting plate (1), a toothed ring (8) is arranged on the output shaft of the motor (7), a rack (9) meshed with the toothed ring (8) is arranged on the second magnet (6), and the length direction of the rack (9) is perpendicular to the length direction of the output shaft of the motor (7).

5. An airborne level-adjusting device according to claim 2, characterized in that: the first magnet (5) and the second magnet (6) are electromagnets, a first switch for controlling the first magnet (5) is arranged on the mounting plate (1), and the first switch is electrically communicated with the first magnet (5); be provided with the second switch that is used for controlling second magnet (6) on mounting panel (1), the second switch communicates with second magnet (6) electricity.

6. An airborne level-adjusting device according to claim 1, characterized in that: the sliding device is characterized in that a supporting plate (10) used for fixing a fixing plate (3) is arranged on the mounting plate (1), the plane where the sliding direction of the supporting plate (10) is perpendicular to the guide rail is arranged, and a second driving piece used for driving the supporting plate (10) to slide is arranged on the mounting plate (1).

7. An airborne level adjustment device according to claim 6, characterized in that: the second driving piece comprises an electric push rod (11) arranged on the mounting plate (1), the length direction of the electric push rod (11) is parallel to the sliding direction of the butt plate (10), and the butt plate (10) is fixedly connected to an output shaft of the electric push rod (11).

8. An airborne level adjustment device according to claim 7, characterized in that: and an anti-skid piece is arranged on the abutting plate (10), and the anti-skid piece is used for increasing the friction force between the abutting plate (10) and the fixing plate (3).