CN113670331B - Method for installing standby magnetic compass of airplane - Google Patents
Method for installing standby magnetic compass of airplane Download PDFInfo
- Publication number
- CN113670331B CN113670331B CN202010413122.9A CN202010413122A CN113670331B CN 113670331 B CN113670331 B CN 113670331B CN 202010413122 A CN202010413122 A CN 202010413122A CN 113670331 B CN113670331 B CN 113670331B
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- plane
- installation
- magnetic compass
- mounting
- calibration
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention belongs to the field of aircraft aviation manufacturing, and relates to an installation method of a standby magnetic compass of an aircraft. The method is characterized in that a mounting plane is selected as a horizontal calibration plane, and when the mounting plane cannot be used for placing a measuring tool, an auxiliary flat plate larger than the mounting plane is placed on the mounting plane as the horizontal calibration plane to perform horizontal calibration. And manufacturing an installation datum line by means of an airplane symmetrical structure near the installation plane, manufacturing a scribing mark according to the installation datum line, and installing the spare magnetic compass according to the scribing mark. The method can effectively ensure the horizontal installation precision and the heading installation precision of the standby magnetic compass, simplify the subsequent Luo Cha calibration step and reduce the calibration time.
Description
Technical Field
The invention relates to the field of aviation manufacturing, in particular to an installation method of a standby magnetic compass of an airplane.
Background
The standby magnetic compass provides magnetic heading information indication for the pilot, and in an emergency situation, the pilot depends on the heading information provided by the standby magnetic compass to fly, and if the heading error is large, yaw is possibly caused, and the destination cannot be reached. Currently, when a spare magnetic compass is installed on an aircraft, a visual installation mode is generally adopted, and a large installation error exists. When the offset calibration is carried out before the delivery of the aircraft, the installation error is difficult to accurately compensate and correct, so that the offset calibration method is complicated and is easy to fail. The method for installing the spare magnetic compass can effectively ensure the installation precision of the spare magnetic compass, simplify the compass calibration method, save Luo Cha calibration time and improve the success rate of compass calibration.
Disclosure of Invention
Aiming at the requirements of airplane development and the problems existing in the prior art, the invention aims to provide an airplane standby magnetic compass installation method which can effectively ensure the horizontal installation precision and heading installation precision of the standby magnetic compass.
The method for installing the standby magnetic compass of the airplane is characterized by comprising the following steps of: 1) Selecting an installation plane of the spare magnetic compass on the aircraft body as a calibration plane, wherein the installation plane is provided with a prefabricated through hole, and the prefabricated through hole is matched with the appearance of the spare magnetic compass; 2) Carrying out horizontal calibration on the installation plane of the spare magnetic compass to enable the installation plane to be in a horizontal position; 3) Manufacturing a mounting datum line on a mounting plane, wherein the mounting datum line passes through the center of the prefabricated through hole and is parallel to the heading of the airplane; 4) And installing the spare magnetic compass on the installation plane, and aligning a center scribing line at the top of the spare magnetic compass with an installation datum line on the installation plane.
The invention has the beneficial effects that: the method can simplify the step of Luo Cha calibration and reduce Luo Cha calibration time; by using the method, the Luo Cha can be ensured to have reliable and high calibration precision after calibration; with this method, if the mounting plane is not removed and replaced, there is no need to perform the mounting calibration again when replacing the spare magnetic compass.
The invention is described in further detail below with reference to the drawings of embodiments.
Drawings
FIG. 1 is a schematic diagram of an alternate magnetic compass installation.
Fig. 2 is a schematic diagram of a stand-by magnetic compass horizontal calibration.
The numbering in the figures illustrates: the device comprises a mounting plane 1, a marking mark 2, a spare magnetic compass 3, a center marking on the top of the spare magnetic compass 4, a bolt 5, a spare magnetic compass mounting bracket 6, an airplane symmetrical structure near the mounting plane 7, a central line of the symmetrical structure 8, a strippable gasket 9 and an auxiliary flat plate 10.
Detailed Description
In this embodiment, the installation method of the spare magnetic compass of an aircraft selects the installation plane 1 of the spare magnetic compass 3 on the aircraft body as the calibration plane, if the installation plane of the spare magnetic compass cannot place the measurement device, an auxiliary flat plate 10 may be used, the auxiliary flat plate 10 is parallel to the installation plane 1, and the auxiliary flat plate 10 is used as the horizontal calibration plane. Then, carrying out horizontal calibration on the installation plane 1 of the spare magnetic compass, and firstly, calibrating the plane horizontally; secondly, using devices such as an electronic protractor or a level meter to horizontally calibrate the horizontal calibration plane in the transverse direction and the longitudinal direction, when the horizontal calibration plane is not horizontal, adding or reducing connecting materials such as a strippable gasket and the like at the fixed position of the installation plane 1 of the spare magnetic compass and the aircraft structure, and adjusting until the horizontal calibration plane is horizontal in the transverse direction and the longitudinal direction; after the calibration work is completed, if the auxiliary flat panel 10 is used, the auxiliary flat panel 10 is detached from the installation plane. And manufacturing an installation datum line. And (3) using an airplane symmetrical structure near the installation plane of the spare magnetic compass to make a central symmetrical line of the structure, projecting the central symmetrical line onto the installation plane through the center of the prefabricated through hole on the installation plane, wherein the projection line is an installation datum line, and manufacturing a scribing mark according to the installation datum line. And finally, installing a spare magnetic compass according to the installation datum line. The center score line on top of the spare magnetic compass is aligned with the score line mark and the spare magnetic compass is secured to the mounting plane.
As shown in fig. 1 and 2. The installation method in this embodiment includes the following steps:
step one: the mounting plane 1 of the spare magnetic compass 3 is checked, and since the mounting plane 1 is small, an electronic protractor for horizontal calibration cannot be placed, and thus an auxiliary plate 10 having a flatness of not more than 0.6 is fabricated. The hole is used for fixing with the installation plane of the spare magnetic compass 3, and the extending surface can be used for placing an electronic protractor. The auxiliary flat plate 10 is tightly attached and fixed with the installation plane 1 of the spare magnetic compass 3 to serve as a horizontal calibration plane. The auxiliary flat plate 10 is a rigid flat plate, and is not easy to bend so as to ensure the level of the auxiliary flat plate.
Step two: the aircraft is leveled, the electronic protractor is used for measuring the angles between the transverse direction and the longitudinal direction of the auxiliary flat plate 10 and the horizontal plane, when the error exceeds the requirement, the strippable gaskets (aluminum) 9 are correspondingly added at the joints of the 4 bolts 5 to adjust the level of the auxiliary flat plate 10 until the error meets the requirement. After the auxiliary flat plate 10 is leveled, the auxiliary flat plate 10 is disassembled, the strippable gasket 9 is kept unchanged, the purpose of leveling the installation plane 1 of the spare magnetic compass 3 is achieved, and the installation plane is located at a horizontal position.
Step three: since the spare magnetic compass 3 is installed at the center of the aircraft nose, the aircraft symmetrical structure 7 near the installation plane 1 is selected as a symmetrical structure, and the aircraft symmetrical structure 7 is positioned at the center of symmetry of the aircraft. And finding out a central line 8 of the symmetrical structure on the plane symmetrical structure 7 near the installation plane, projecting the central line 8 of the symmetrical structure onto the installation plane 1 of the spare magnetic compass 3 through the center of the prefabricated through hole on the spare magnetic compass installation plane, namely, using a vibration tool to make a physical scribing mark 2 along the installation datum line.
Step four: the center score line 4 on the top of the spare magnetic compass is aligned with the score line mark 2 on the installation plane 1, and the spare magnetic compass 3 is installed and fixed on the installation plane 1 by using a nonferromagnetic tool, so that the installation of the spare magnetic compass 3 can be completed.
Claims (2)
1. The method for installing the standby magnetic compass of the airplane is characterized by comprising the following steps of: 1) Selecting an installation plane of the spare magnetic compass on the aircraft body as a calibration plane, wherein the installation plane is provided with a prefabricated through hole, and the prefabricated through hole is matched with the appearance of the spare magnetic compass;
2) Carrying out horizontal calibration on the installation plane of the spare magnetic compass, placing an auxiliary flat plate larger than the installation plane on the installation plane, wherein the auxiliary flat plate is parallel to the installation plane, and taking the auxiliary flat plate as a horizontal calibration plane to enable the installation plane to be in a horizontal position;
3) Manufacturing a mounting datum line on a mounting plane, using an airplane symmetrical structure near the mounting plane to make a central symmetrical line of the structure, projecting the central symmetrical line onto the mounting plane through the center of a prefabricated through hole on the mounting plane, wherein the projection line is the mounting datum line which passes through the center of the prefabricated through hole and is parallel to the course of the airplane;
4) And installing the spare magnetic compass on the installation plane, and aligning a center scribing line at the top of the spare magnetic compass with an installation datum line on the installation plane.
2. The aircraft alternate magnetic compass mounting calibration method of claim 1, wherein the score marks of the mounting reference line are made on the mounting plane such that the center score line on the top of the alternate magnetic compass is aligned with the score marks on the mounting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413122.9A CN113670331B (en) | 2020-05-15 | 2020-05-15 | Method for installing standby magnetic compass of airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413122.9A CN113670331B (en) | 2020-05-15 | 2020-05-15 | Method for installing standby magnetic compass of airplane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113670331A CN113670331A (en) | 2021-11-19 |
| CN113670331B true CN113670331B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010413122.9A Active CN113670331B (en) | 2020-05-15 | 2020-05-15 | Method for installing standby magnetic compass of airplane |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB239914A (en) * | 1924-06-13 | 1925-09-14 | Seizo Shimizu | Apparatus for determining a magnetic field for the magnetic compass adjustment |
| GB752709A (en) * | 1953-05-30 | 1956-07-11 | Francois Baptistin Bellon | Improvements in magnetic compasses and similar apparatus provided with magnetic correcting means such as quadrantal and semi-circular correctors |
| CN102829721A (en) * | 2012-08-17 | 2012-12-19 | 中国航天空气动力技术研究院 | Airplane detection platform and airplane detection method |
| CN203266589U (en) * | 2013-06-03 | 2013-11-06 | 山东太古飞机工程有限公司 | Disassembling adjusting tool of aircraft standby magnetic compass |
| CN104655114A (en) * | 2014-12-26 | 2015-05-27 | 国家电网公司 | Calibration device for magnetic compass of unmanned aerial vehicle |
| CN105157690A (en) * | 2015-09-01 | 2015-12-16 | 湖南基石信息技术有限公司 | Four-rotor aircraft magnetic compass calibration method |
| CN206223174U (en) * | 2016-12-09 | 2017-06-06 | 张意涵 | A kind of simple unmanned plane magnetic compass calibrating installation |
| CN107917704A (en) * | 2017-11-17 | 2018-04-17 | 上海拓攻机器人有限公司 | A kind of magnetic compass calibration method and device, computer-readable recording medium |
| CN208419991U (en) * | 2018-06-27 | 2019-01-22 | 广东容祺智能科技有限公司 | A kind of magnetic compass alignment aid of unmanned plane |
| CN208488103U (en) * | 2018-08-14 | 2019-02-12 | 中国人民解放军空军工程大学航空机务士官学校 | A kind of magnetic compass correction simulator |
| CN109916385A (en) * | 2019-04-11 | 2019-06-21 | 中国民航大学 | A kind of multi-operation mode aircraft standby compass tester |
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2020
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| GB239914A (en) * | 1924-06-13 | 1925-09-14 | Seizo Shimizu | Apparatus for determining a magnetic field for the magnetic compass adjustment |
| GB752709A (en) * | 1953-05-30 | 1956-07-11 | Francois Baptistin Bellon | Improvements in magnetic compasses and similar apparatus provided with magnetic correcting means such as quadrantal and semi-circular correctors |
| CN102829721A (en) * | 2012-08-17 | 2012-12-19 | 中国航天空气动力技术研究院 | Airplane detection platform and airplane detection method |
| CN203266589U (en) * | 2013-06-03 | 2013-11-06 | 山东太古飞机工程有限公司 | Disassembling adjusting tool of aircraft standby magnetic compass |
| CN104655114A (en) * | 2014-12-26 | 2015-05-27 | 国家电网公司 | Calibration device for magnetic compass of unmanned aerial vehicle |
| CN105157690A (en) * | 2015-09-01 | 2015-12-16 | 湖南基石信息技术有限公司 | Four-rotor aircraft magnetic compass calibration method |
| CN206223174U (en) * | 2016-12-09 | 2017-06-06 | 张意涵 | A kind of simple unmanned plane magnetic compass calibrating installation |
| CN107917704A (en) * | 2017-11-17 | 2018-04-17 | 上海拓攻机器人有限公司 | A kind of magnetic compass calibration method and device, computer-readable recording medium |
| CN208419991U (en) * | 2018-06-27 | 2019-01-22 | 广东容祺智能科技有限公司 | A kind of magnetic compass alignment aid of unmanned plane |
| CN208488103U (en) * | 2018-08-14 | 2019-02-12 | 中国人民解放军空军工程大学航空机务士官学校 | A kind of magnetic compass correction simulator |
| CN109916385A (en) * | 2019-04-11 | 2019-06-21 | 中国民航大学 | A kind of multi-operation mode aircraft standby compass tester |
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| Publication number | Publication date |
|---|---|
| CN113670331A (en) | 2021-11-19 |
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