Calibration device for quick north returning of artillery

Abstract

The utility model relates to an artillery quick north-returning calibration device which comprises a fixing cylinder, supporting arms, a mounting platform and elastic pieces, the fixing cylinder is used for being mounted at the front end and / or the rear end of an artillery barrel of an artillery, the fixing cylinder is located on the inner side of the artillery barrel and coaxial with the artillery barrel, the front end of the fixing cylinder is open, the interior of the fixing cylinder is hollow, and the two supporting arms are horizontally and symmetrically arranged at the rear end; an installation platform is arranged between the two supporting arms, the two ends of the installation platform are hinged to the two supporting arms, the two ends of the disc damping rotating shaft are fixedly connected with the supporting arms and the installation platform respectively, an installation area is arranged on the installation platform and used for installing a north seeker, and a transverse gradienter and a longitudinal gradienter are arranged on the installation platform. M-shaped elastic pieces are symmetrically arranged on the two sides of the outer surface of the fixing barrel, scale marks are arranged on the inner side of the fixing barrel in the radial direction, the total station is erected on the rear side of the fixing barrel, the north-returning calibration process of the artillery is more simplified and efficient, and the battle preparation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artillery, in particular to a rapid north return calibration device for artillery. Background Art

[0002] Artillery refers to a barreled weapon that uses mechanical energy, chemical energy, electromagnetic energy and other energy to project projectiles. Its range exceeds that of individual weapons. It consists of two major parts: the barrel and the gun carriage. It is a barreled weapon with a caliber of not less than 20 mm. Since the 21st century, most existing artillery has been equipped with a fire control system and an inertial navigation system (inertial navigation system). The inertial navigation system (INS, hereinafter referred to as inertial navigation) is an autonomous navigation system that does not rely on external information and does not radiate energy to the outside. Its working environment includes not only air and ground, but also underwater. The basic working principle of inertial navigation is based on Newton's laws of mechanics. By measuring the acceleration of the carrier in the inertial reference system, integrating it over time, and transforming it into the navigation coordinate system, it is possible to obtain information such as speed, yaw angle and position in the navigation coordinate system. Artillery determines the firing angle and strike position through the inertial navigation system. The use of the inertial navigation system requires the current firing angle of the artillery and the orientation angle formed by the barrel and the north line. Therefore, the orientation angle needs to be measured before the artillery is used. This process is called the north return calibration of the artillery.

[0003] Existing artillery orientation angle measurement methods usually use a total station and a north-finder combined for measurement. Before use, the total station needs to find an observation point and place it fixedly, then the north-finder is installed on the top of the total station, and then the total station is adjusted to measure the angle of the artillery barrel, and the orientation angle is calculated in combination with the north-finder. The use of a total station is costly, inconvenient to carry, and troublesome to install, and it is inconvenient to quickly realize the north return calibration of the artillery. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for quickly returning to the north for artillery in view of the above shortcomings.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A device for rapid north return calibration of artillery comprises a fixed barrel, a support arm, a mounting platform and an M-shaped shrapnel, wherein the fixed barrel is used to be mounted to the front end and / or rear end of a barrel of the artillery, the fixed barrel is located inside the barrel and is coaxial with the barrel, the front end of the fixed barrel is open and the interior is hollow, and two support arms are horizontally and symmetrically arranged at the rear end, a mounting platform is arranged between the two support arms, two ends of the mounting platform are hinged to the two support arms through a disc damping shaft, the two ends of the disc damping shaft are respectively fixedly connected to the support arms and the mounting platform, the mounting platform can realize forward and backward rotation through the disc damping shaft, an installation area is arranged on the mounting platform, the installation area is used to install a north finder, a horizontal level and a longitudinal level located outside the installation area are arranged on the mounting platform, two M-shaped shrapnel for fixing the fixed barrel to the inside of the barrel are symmetrically arranged on both sides of the outer surface of the fixed barrel, and scale lines for cooperating with a total station for calibration are radially arranged on the inner side of the fixed barrel, and the total station is mounted on the rear side of the fixed barrel.

[0007] Furthermore, the installation area is rectangular, and a plurality of installation holes are provided on the installation area, and the plurality of installation holes are respectively used for fixing and installing the north finder by means of bolts.

[0008] Furthermore, the installation platform is rectangular, and the center lines of the horizontal level and the vertical level coincide with the longitudinal center line and the horizontal center line of the installation platform respectively.

[0009] Furthermore, the central concave portion of the M-shaped spring piece is fixedly connected to the fixed tube, and both ends are in contact with the outer side of the fixed tube, and can translate relative to the fixed tube under pressure.

[0010] Furthermore, the north-finding instruments are used for remote connection with an external inertial navigation system.

[0011] Furthermore, the body of the fixing tube is a hollow structure.

[0012] Furthermore, the scale line is located on the inner side wall of the rear portion of the fixed cylinder.

[0013] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0014] The utility model simplifies and improves the northing calibration process of artillery by setting a fixed tube, a support arm, a mounting platform and a shrapnel. The operator can quickly install and use a north finder or a total station to measure the orientation angle without complicated adjustments and settings, thereby improving the efficiency of combat preparation; the horizontal level and the vertical level set on the mounting platform, as well as the scale lines, together provide an accurate calibration reference for the north finder or the total station. These designs help reduce measurement errors and improve the measurement accuracy of the orientation angle, thereby ensuring the accuracy of artillery shooting; at the same time, the design of the M-shaped shrapnel enables the fixed tube to be firmly fixed on the inside of the barrel, ensuring the reliability of the measurement data; the transparent setting of the fixed tube body can reduce the manufacturing materials of the fixed tube, reduce the manufacturing cost, and reduce the weight of the fixed tube, making it easy to carry.

[0015] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the positional relationship between the utility model and the gun barrel when using the north finder;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when using a total station;

[0018] Figure 3 This is a cross-sectional view of the connection structure between the utility model and the barrel;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model when using the north finder;

[0020] Figure 5 It is a schematic top view of the utility model when the north finder is used.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Fixed cylinder; 2. Support arm; 3. Mounting platform; 301. Mounting area; 302. Mounting hole; 4. M-shaped spring; 5. Disc damping shaft; 6. North finder; 7. Total station; 8. Horizontal level; 9. Vertical level; 10. Scale line. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] like Figure 1-5 As shown, a device for quickly returning to the north for artillery is provided, comprising a fixed tube 1, a support arm 2, a mounting platform 3 and an M-shaped shrapnel 4, wherein the fixed tube 1 is used to be mounted to the front end and / or rear end of a barrel of the artillery, the fixed tube 1 is located inside the barrel and is coaxial with the barrel, the front end of the fixed tube 1 is open and the interior is hollow, and two support arms 2 are horizontally and symmetrically arranged at the rear end, a mounting platform 3 is arranged between the two support arms 2, and both ends of the mounting platform 3 are hinged to the two support arms 2 through a disc damping shaft 5, and both ends of the disc damping shaft 5 are respectively connected to the support arms 2 and the mounting platform 3 Fixedly connected, the mounting platform 3 realizes forward and backward rotation through a disc damping shaft 5, an mounting area 301 is provided on the mounting platform 3, the mounting area 301 is used to install a north finder 6, a horizontal level 8 and a vertical level 9 located outside the mounting area 301 are provided on the mounting platform 3, two M-shaped spring clips 4 for fixing the fixed tube 1 to the inner side of the barrel are symmetrically provided on both sides of the outer surface of the fixed tube 1, and a scale line 10 for cooperating with the calibration of the total station 7 is radially provided on the inner side of the fixed tube 1, and the total station 7 is mounted on the rear side of the fixed tube 1.

[0026] As an implementation manner, the installation area 301 is rectangular, and a plurality of installation holes 302 are provided on the installation area 301. The plurality of installation holes 302 are respectively used to fix and install the north finder 6 by means of bolts.

[0027] As an implementation manner, the installation platform 3 is rectangular, and the center lines of the transverse level 8 and the longitudinal level 9 coincide with the longitudinal center line and the transverse center line of the installation platform 3 respectively.

[0028] As an implementation mode, the central concave portion of the M-shaped spring piece 4 is fixedly connected to the fixed tube 1 , and both ends are in contact with the outer side of the fixed tube 1 , and can translate relative to the fixed tube 1 under pressure.

[0029] As an implementation mode, the north-finding device 6 is used for remote connection with an external inertial navigation system.

[0030] As an implementation manner, the body of the fixing tube 1 is a hollow structure.

[0031] As an implementation manner, the scale line 10 is located on the inner wall of the rear end of the fixed tube 1 .

[0032] In the present invention, the data of the north-finder 6 and the total station 7 are transmitted to the external inertial navigation system, and the inertial navigation system calculates the orientation angle of the artillery through the data of the north-finder 6 or the total station 7; the model of the north-finder 6 is Zhonghaida TS5PRO.

[0033] The workflow of this utility model:

[0034] When using the north-finder 6 for calibration, first install the two north-finders 6 on the two fixed tubes 1 respectively, and then insert the two fixed tubes 1 into the front and rear ends of the barrel respectively, and the M-shaped spring piece 4 of the fixed tube 1 is against the inner wall of the barrel in the barrel to ensure that the fixed tube 1 is coaxial with the barrel and stable. Use the horizontal level 8 and the vertical level 9 on the mounting platform 3 to adjust the horizontal angle of the mounting platform 3 and the barrel until the bubbles of the two levels are located in the center of the levels to ensure that the mounting platform 3 is in a horizontal state. The external inertial navigation system calculates the orientation angle of the barrel through the coordinate collection results of the two north-finders 6;

[0035] When using the total station 7 for calibration, only a fixed tube 1 is required. First, insert the fixed tube 1 into the tail of the barrel, adjust the mounting platform 3 to be parallel to the axis of the barrel, and adjust the horizontal level until the bubble is located in the center of the level. Then place the total station on the rear side of the fixed tube 1 and turn on the laser. Adjust the total station 7 until the laser is parallel to the scale line 10. The external inertial navigation system calculates the orientation angle of the barrel through the laser emission angle collection result of the total station 7.

[0036] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A device for rapid north return calibration of artillery, characterized in that: The invention comprises a fixing tube (1), a support arm (2), a mounting platform (3) and an M-shaped shrapnel (4), wherein the fixing tube (1) is used to be mounted on the front end and / or rear end of a barrel of a cannon, the fixing tube (1) is located inside the barrel and is coaxial with the barrel, the front end of the fixing tube (1) is open and the interior is hollow, and two support arms (2) are horizontally and symmetrically arranged at the rear end, a mounting platform (3) is arranged between the two support arms (2), two ends of the mounting platform (3) are hinged to the two support arms (2) through a disc damping shaft (5), two ends of the disc damping shaft (5) are respectively fixedly connected to the support arms (2) and the mounting platform (3), and the mounting platform (3) is arranged between the two support arms (2). The platform (3) is rotated forward and backward by a disc damping shaft (5); an installation area (301) is provided on the installation platform (3); the installation area (301) is used to install a north finder (6); a horizontal level (8) and a vertical level (9) are provided on the installation platform (3) and are located outside the installation area (301); two M-shaped spring clips (4) are symmetrically provided on both sides of the outer surface of the fixed tube (1) for fixing the fixed tube (1) to the inner side of the gun barrel; a scale line (10) for cooperating with a total station (7) for calibration is provided radially on the inner side of the fixed tube (1); and the total station (7) is mounted on the rear side of the fixed tube (1).

2. A rapid north return calibration device for artillery according to claim 1, characterized in that: The installation area (301) is rectangular, and a plurality of installation holes (302) are provided on the installation area (301). The plurality of installation holes (302) are respectively used to fix and install the north finder (6) by means of bolts.

3. The artillery rapid north return calibration device according to claim 1, characterized in that: The installation platform (3) is rectangular, and the center lines of the transverse level (8) and the longitudinal level (9) coincide with the longitudinal center line and the transverse center line of the installation platform (3), respectively.

4. A rapid north return calibration device for artillery according to claim 1, characterized in that: The central recessed portion of the M-shaped spring piece (4) is fixedly connected to the fixed cylinder (1), and both ends are in contact with the outer side of the fixed cylinder (1), and can translate relative to the fixed cylinder (1) under pressure.

5. The artillery rapid north return calibration device according to claim 1, characterized in that: The north-finding instruments (6) are used for remote connection with an external inertial navigation system.

6. A device for rapid north return calibration of artillery according to claim 1, characterized in that: The body of the fixed cylinder (1) is a hollow structure.

7. A rapid north return calibration device for artillery according to claim 1, characterized in that: The scale line (10) is located on the inner side wall of the rear end of the fixed cylinder (1).

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