Airplane head-up display installation error calibration device

Abstract

The utility model discloses an airplane head-up display installation error calibration device, which relates to the technical field of airplane avionics system boresighting and comprises a connecting support, a lower adjusting support, an upper adjusting support and a head-up display sighting telescope. The connecting support is used for being connected with an airplane head-up display. The lower adjusting support and the connecting support are locked and fixed in a screwed connection mode, and the lower adjusting support can achieve levelness adjustment relative to the connecting support. The upper adjusting support is locked and fixed to the top of the lower adjusting support in a screwed connection mode, and the upper adjusting support can be rotationally adjusted relative to the lower adjusting support. The head-up display sighting telescope is rotationally connected to the upper adjusting support and locked and fixed through a pitching locking knob. According to the utility model, multi-dimensional adjustment of the levelness, the rotation angle and the pitching angle is realized, and the installation error of the plane head-up display can be accurately calibrated. According to the device, through the optical sighting telescope and a mechanical adjusting structure, interpretation errors caused by different observation angles of an operator are reduced, and the calibration precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft avionics system target calibration, more particularly to a kind of aircraft flat display installation error calibration device. BACKGROUND

[0002] Flat display is a visual sighting device installed in the front of aircraft cabin, to ensure sighting accuracy, the installation error needs to be calibrated, and flat display display picture sighting cross line is aligned with target mark cross line on target plate, then flat display can be considered without installation error. If there is error between the two, the installation angle of flat display needs to be mechanically adjusted to make flat display picture sighting cross line aligned with target mark cross line on target plate to eliminate installation error. Using this direct visual calibration method, the angle of observation of the operator's eyes is different, and the calibration results also have differences, which has certain interpretation error. Since the target plate is placed in front of flat display at a distance of more than 20 meters, the operator cannot easily see the scale of the target mark on the target plate, which affects the efficiency and accuracy of calibration.

[0003] For example, patent CN202111395607.0 (published on November 23, 2021) discloses a target calibration device with a three-dimensional adjustment mechanism, which is only used for optical axis calibration of the aircraft head-up display itself, and does not mention the calibration of the error after the head-up display is installed on the aircraft.

[0004] Patent CN202111395608.5 (published on November 23, 2021) provides a method for calibrating the optical axis of an aircraft head-up display, which mainly includes the position placement of the calibration target plate and the error reading method, and does not involve the design of the tool used for head-up display target calibration.

[0005] Therefore, in order to solve the problem of aircraft flat display installation error calibration, a flat display installation error calibration device is designed to eliminate the interpretation error of direct visual interpretation of target mark, which is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0006] Therefore, the utility model provides an aircraft flat display installation error calibration device to solve the above technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An aircraft flat display installation error calibration device comprises:

[0009] The connecting bracket is used to connect with the aircraft flat display.

[0010] A lower adjusting support is locked and fixed with the connecting support by a screw connection mode, and the lower adjusting support can realize horizontal degree adjustment relative to the connecting support;

[0011] An upper adjusting support is locked and fixed on the top of the lower adjusting support by a screw connection mode, and the upper adjusting support can realize rotation adjustment relative to the lower adjusting support;

[0012] A flat display sighting telescope is rotationally connected on the upper adjusting support and locked and fixed by a pitch locking knob.

[0013] Through the above technical scheme, the combination of the connecting support, the lower adjusting support, the upper adjusting support and the flat display sighting telescope realizes multi-dimensional adjustment of the horizontal degree, the rotation angle and the pitch angle, can accurately calibrate the installation error of the flat display of the airplane, and compared with the traditional direct visual calibration method, the device reduces the reading error caused by different observation angles of the operator through the optical sighting telescope and the mechanical adjusting structure, and improves the calibration accuracy.

[0014] Preferably, in the above-mentioned flat display installation error calibration device for airplane, one side of the connecting support has two support positioning pins on both sides, the two support positioning pins are positioned with the flat display of the airplane, and are fastened and connected with the flat display of the airplane through the positioning screw passing through the connecting support.

[0015] Preferably, in the above-mentioned flat display installation error calibration device for airplane, the position of the connecting support for connecting the lower adjusting support is fastened and connected with a transition plate through a screw, and the transition plate is provided with a stud connected with the lower adjusting support.

[0016] Preferably, in the above-mentioned flat display installation error calibration device for airplane, the lower part of the lower adjusting support is rotationally connected with a nut, and the nut is threadedly locked with the stud.

[0017] Preferably, in the above-mentioned flat display installation error calibration device for airplane, one side of the transition plate is provided with two circular notch positioning grooves, and the other side of the transition plate is provided with an elliptical groove; one side of the lower part of the lower adjusting support is provided with a positioning pin positioned and inserted into the circular notch positioning groove, and the other side of the lower part of the lower adjusting support is threadedly connected with an adjusting screw, the bottom end of the adjusting screw is inserted into the elliptical groove, and the top end of the adjusting screw is fixed with an adjusting rotating wheel.

[0018] Preferably, in the above-mentioned flat display installation error calibration device for airplane, the upper part of the lower adjusting support is rotationally connected with a shaft, the shaft is fixed with an azimuth adjusting hand wheel, the top end of the shaft is inserted and fixed with the upper adjusting support, and the bottom end of the shaft is threadedly connected with an azimuth locking knob for locking the shaft.

[0019] Preferably, in the aircraft flat display installation error calibration device, the azimuth adjusting handle has an azimuth scale.

[0020] Preferably, in the aircraft flat display installation error calibration device, the upper adjusting support is a U-shaped support with an open top, the bottom end of the U-shaped support is fixedly connected with the shaft, the open top of the U-shaped support is rotatably connected with the fixed ring on the flat display sighting scope, and the outer wall of one side of the U-shaped support is provided with the pitch locking knob.

[0021] Preferably, in the aircraft flat display installation error calibration device, the inside of the flat display sighting scope is sequentially provided with a turning prism and a differentiation plate from the objective lens to the ocular lens, and the turning prism changes the direction of light transmission.

[0022] Preferably, in the aircraft flat display installation error calibration device, the objective lens side of the flat display sighting scope is provided with a lens, the ocular lens side of the flat display sighting scope is provided with an eye protection sleeve, and the flat display sighting scope is provided with an ocular lens focusing handle and an objective lens focusing handle.

[0023] Compared with the prior art, the aircraft flat display installation error calibration device provided by the utility model can be used for clearly observing the cross line of a target far away through the flat display sighting scope, and the installation angle of the flat display can be adjusted in real time, so that the calibration efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only the embodiments of the utility model, and those skilled in the art can obtain other drawings according to the provided drawings without creating creative labor.

[0025] Figure 1 The drawing is the structural schematic diagram of the aircraft flat display installation error calibration device provided by the utility model;

[0026] Figure 2 The drawing is the bottom surface structural schematic diagram of the connecting support provided by the utility model;

[0027] Figure 3 The drawing is the top surface structural schematic diagram of the connecting support provided by the utility model;

[0028] Figure 4The drawing is a structural schematic view of a lower adjusting support provided by the utility model;

[0029] Figure 5 The drawing is a schematic view of a differentiating plate provided by the utility model.

[0030] Figure 6 The drawing is a schematic view of a differentiating plate provided by the utility model.

[0031] Wherein:

[0032] 1-connection support; 2-upper adjusting support; 3-flat field sighting telescope; 4-protective sleeve; 5-eyepiece focusing hand wheel; 6-objective focusing hand wheel; 7-pitch locking knob; 8-fixing ring; 9-azimuth adjusting hand wheel; 10-lens; 11-circular segment positioning groove; 12-stud; 13-elliptical groove; 14-lower adjusting support; 15-support positioning pin; 16-positioning screw; 17-transition plate; 18-adjusting screw rod; 19-positioning pin; 20-nut; 21-adjusting rotating wheel; 22-azimuth locking knob; 23-azimuth scale; 24-shaft; 25-objective; 26-rotating prism; 27-differentiating plate; 28-eyepiece. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Referring to the drawings, Figure 1 The utility model embodiment discloses a kind of airplane flat display installation error calibration devices, comprising:

[0035] Connection support 1, connection support 1 is used to be connected with airplane flat display;

[0036] Lower adjusting support 14, lower adjusting support 14 is locked and fixed by screw thread connection mode with connection support 1, and lower adjusting support 14 can realize the levelness adjustment relative to connection support 1;

[0037] Upper adjusting support 2, upper adjusting support 2 is locked and fixed in the top of lower adjusting support 14 by screw thread connection mode, and upper adjusting support 2 can realize the rotary adjustment relative to lower adjusting support 14;

[0038] Flat field sighting telescope 3, flat field sighting telescope 3 is rotationally connected on upper adjusting support 2, and is locked and fixed by pitch locking knob 7.

[0039] Referring to the drawings, Figure 2And attached Figure 3 One side of the connecting bracket 1 has two bracket positioning pins 15 on both sides, which are positioned with the aircraft flat display and fastened with the aircraft flat display through positioning screws 16 passing through the connecting bracket 1.

[0040] In order to further optimize the above technical scheme, the position of the connecting bracket 1 for connecting the lower adjusting bracket 14 is fastened by a screw with a transition plate 17, which has a stud 12 connected with the lower adjusting bracket 14.

[0041] See attached Figure 4 The lower part of the lower adjusting bracket 14 is rotatably connected with a nut 20, which is threadedly locked with the stud 12.

[0042] In order to further optimize the above technical scheme, one side of the transition plate 17 has two circular notch positioning grooves 11, and the other side of the transition plate 17 has an oval slot 13; one side of the lower part of the lower adjusting bracket 14 has a positioning pin 19 which is positioned and inserted into the circular notch positioning groove 11, and the other side of the lower part of the lower adjusting bracket 14 is threadedly connected with an adjusting screw 18, the bottom end of which is inserted into the oval slot 13, and the top end of the adjusting screw 18 is fixed with an adjusting turn 21.

[0043] The circular notch positioning groove 11 is used for the installation limit of the lower adjusting bracket 14, and one oval slot 13 is used for horizontal adjustment stop. The stud 12 is mechanically connected with the lower adjusting bracket 14.

[0044] In order to further optimize the above technical scheme, the upper part of the lower adjusting bracket 14 is rotatably connected with a shaft 24, the shaft 24 is fixed with an azimuth adjusting hand wheel 9, the top end of the shaft 24 is inserted and fixed with the upper adjusting bracket 2, and the bottom end of the shaft 24 is threadedly connected with an azimuth locking knob 22 for locking the shaft 24.

[0045] In order to further optimize the above technical scheme, the azimuth adjusting hand wheel 9 has an azimuth scale 23.

[0046] In order to further optimize the above technical scheme, the upper adjusting bracket 2 is a U-shaped bracket with a top opening, the bottom end of the U-shaped bracket is inserted and fixed with the shaft 24, the top opening of the U-shaped bracket is rotatably connected with the fixed ring 8 on the flat display sighting scope 3, and one side of the outer wall of the U-shaped bracket has a pitch locking knob 7.

[0047] See attached Figure 5 The inside of the flat display sighting scope 3 is provided with a turning prism 26 and a differentiation plate 27 in sequence from the objective lens 25 to the eyepiece 28, and the turning prism 26 changes the direction of light transmission.

[0048] See attached Figure 6The utility model uses the graduation plate 27 inside the flat field sighting telescope 3 to mark the line to align the sighting cross line of the flat field picture, the optical system of the flat field sighting telescope realizes the telescope function, the graduation plate 27 mark line aligns the target mark on the target plate far away, and the target mark cross line far away can be clearly observed by the calibrating personnel.

[0049] In order to further optimize the above technical scheme, the objective side of the flat field sighting telescope 3 is provided with a lens 10, the ocular side of the flat field sighting telescope 3 is provided with an eye protection sleeve 4, the flat field sighting telescope 3 is provided with an ocular focusing hand wheel 5 and an objective focusing hand wheel 6. The eye protection sleeve 4 is a soft and elastic rubber sleeve with folds, which prevents the eyes from being hurt when the eyes are close to the calibration device for visual interpretation.

[0050] In the embodiment, the connecting bracket 1 is mainly used for fixing the calibration device on the flat field and limiting the space position. The transition plate 17 is fixed on the connecting bracket 1 and is used for combining and connecting the whole adjusting structure and the connecting bracket 1 together. The upper adjusting bracket 2 is connected with the lower adjusting bracket 14, which is mainly used for adjusting the horizontal, pitch and azimuth of the sighting telescope in three spatial dimensions, so as to ensure that the cross line of the calibration target instrument aligns with the sighting cross line in the flat field picture. The flat field sighting telescope 3 is installed on the upper adjusting bracket 2 and is a telescopic sighting optical instrument, which has sighting and reading functions and can align with the center of the flat field sighting cross line to read the installation error value of the flat field.

[0051] Specific adjusting mode:

[0052] The azimuth adjusting hand wheel 9 is rotated to adjust the horizontal angle of the flat field sighting telescope 3, the azimuth scale 23 is used to indicate the azimuth rotation angle, and the azimuth locking knob 22 is used to lock after adjustment.

[0053] Pitch adjustment: used for adjusting the height angle of the flat field sighting telescope 3, the fixed ring 8 is connected with the flat field sighting telescope 3 and can rotate around the pitch axis, and the pitch locking knob 7 is used to lock after adjustment.

[0054] Horizontal adjustment: used for adjusting the roll angle of the flat field sighting telescope 3, the rotating adjusting wheel 21 is rotated to drive the adjusting screw 18 to move up and down, and the nut 20 is used to lock after adjustment.

[0055] The flat field sighting cross line and the target cross line image enter the optical system through the lens 10, the objective 25 plays the role of a telescope, the image focal length is adjusted through the objective focusing hand wheel 6, and the clarity of the observed cross target is ensured. The turning prism 26 changes the light transmission direction, enters the ocular 28, and the clarity of the graduation plate 27 is adjusted through the ocular focusing hand wheel 5.

[0056] The design of the graduation plate 27 is shown in Figure 6 The engraved line covers a 24° field of view and has a resolution of 5'.

[0057] The utility model uses the installation error calibration device of flat display to read the installation error of flat display, compares directly with the flat display sighting cross line and directly aligns the external target cross line to read the installation error, overcomes the reading error caused by the different observation angles of the calibration operator, improves the calibration precision. After the error is eliminated, when the plane flat display is used to visually aim at the target, the precision is higher. The flat display sighting scope optical system of the calibration device can make the operator see the target cross line in the distance more clearly and quickly, through the change of the light path direction, the installation angle of the flat display can be adjusted while observing the alignment error of the flat display and the target, the operation is more convenient, the efficiency of the flat display installation error calibration of a certain type of plane can be greatly improved.

[0058] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aircraft flat-panel installation error calibration device, characterized by, The utility model relates to a kind of aircraft flat display connection device, including: Connecting support (1), the connecting support (1) is used to be connected with aircraft flat display; Lower adjusting support (14), the lower adjusting support (14) is locked and fixed with the connecting support (1) by screw connection, and the lower adjusting support (14) can realize horizontal degree adjustment relative to the connecting support (1); Upper adjusting support (2), the upper adjusting support (2) is locked and fixed in the top of the lower adjusting support (14) by screw connection, and the upper adjusting support (2) can realize rotation adjustment relative to the lower adjusting support (14); Flat display sighting telescope (3), the flat display sighting telescope (3) is rotatably connected on the upper adjusting support (2), and is locked and fixed by pitch locking knob (7).

2. An aircraft flat-panel installation error calibration device according to claim 1, wherein, One side of the connecting support (1) has two support positioning pins (15) on both sides, and the two support positioning pins (15) are positioned with the aircraft flat display, and are fastened and connected with the aircraft flat display by positioning screw (16) through the connecting support (1).

3. The device of claim 1, wherein, The position of the connecting support (1) for connecting the lower adjusting support (14) is fastened and connected with transition plate (17) by screw, and the transition plate (17) has stud (12) connected with the lower adjusting support (14) on it.

4. An aircraft planar display installation error calibration device as in claim 3, wherein, The lower part of the lower adjusting support (14) is rotatably connected with nut (20), and the nut (20) is threadedly locked with the stud (12).

5. An aircraft planar display installation error calibration device as in claim 4, wherein, One side of the transition plate (17) has two circular notch positioning grooves (11), and the other side of the transition plate (17) has oval groove (13); one side of the lower part of the lower adjusting support (14) has positioning pin (19) positioned and inserted with the circular notch positioning groove (11), and the other side of the lower part of the lower adjusting support (14) is threadedly connected with adjusting screw (18), the bottom end of the adjusting screw (18) is inserted into the oval groove (13), and the top end of the adjusting screw (18) is fixed with adjusting rotating wheel (21).

6. The apparatus of claim 1, wherein, The upper part of the lower adjusting support (14) is rotatably connected with shaft (24), the shaft (24) is fixed with azimuth adjusting hand wheel (9), the top end of the shaft (24) is inserted and fixed with the upper adjusting support (2), and the bottom end of the shaft (24) is threadedly connected with azimuth locking knob (22) for locking the shaft (24).

7. An aircraft planar display installation error calibration device as in claim 6, wherein, The azimuth adjusting hand wheel (9) has azimuth scale (23) on it.

8. An aircraft planar display installation error calibration device as in claim 7, wherein, The upper adjusting support (2) is U-shaped frame with top opening, the bottom end of the U-shaped frame is inserted and fixed with the shaft (24), the top opening of the U-shaped frame is rotatably connected with fixed ring (8) on the flat display sighting telescope (3), and one side of the outer wall of the U-shaped frame has the pitch locking knob (7).

9. The apparatus of claim 1, wherein, The inside of the flat display sighting telescope (3) is sequentially provided with turning prism (26) and differentiation plate (27) from objective lens (25) to ocular lens (28), and the turning prism (26) changes the direction of light transmission.

10. The apparatus of claim 1, wherein, The objective side of the flat-viewing scope (3) has a lens (10), the ocular side of the flat-viewing scope (3) has an eye guard (4), the flat-viewing scope (3) has an ocular focusing hand wheel (5) and an objective focusing hand wheel (6).

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