CN114750960B - Gun rack of military helicopter and use method thereof - Google Patents
Gun rack of military helicopter and use method thereof Download PDFInfo
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- CN114750960B CN114750960B CN202210407597.6A CN202210407597A CN114750960B CN 114750960 B CN114750960 B CN 114750960B CN 202210407597 A CN202210407597 A CN 202210407597A CN 114750960 B CN114750960 B CN 114750960B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D7/00—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft
- B64D7/02—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms
- B64D7/06—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms movably mounted
Abstract
The invention provides a gun rack of a military helicopter and a using method thereof, wherein the gun rack of the military helicopter comprises: a machine gun sliding beam; a bolt face, comprising: a sliding connecting sleeve and a machine gun fixing sleeve; adsorb positioning mechanism includes: the bolt fixing seat and the magnetic part are arranged on the sliding connection sleeve and mutually attracted with the bolt fixing seat; the head part of the positioning bolt is of a cylindrical structure provided with threads matched with the first positioning nut, and the middle part of the positioning bolt is of a polished rod conical structure matched with the positioning hole; the tail part of the positioning bolt is provided with a second positioning nut fixedly connected with the positioning bolt. The part of the positioning bolt matched with the positioning hole is set to be a polished rod conical structure. And the magnetic part of the adsorption positioning mechanism attracts the bolt fixing seat, so that the problem that bolts and fixing holes used for fixing the relative position of the gun seat on the gun sliding beam are easy to damage in the machine gun buffer frame for the airplane in the prior art can be effectively solved.
Description
Technical Field
The invention relates to the technical field of gun rack equipment on a military helicopter, in particular to a gun rack of the military helicopter and a using method thereof.
Background
The combat helicopter needs to arrange a gun at a cabin door position in the flight process, and a fighter can adjust the shooting position of the gun seat through adjusting the rotating angle of the gun seat and adjusting the telescopic length of the gun seat on the gun sliding beam, so that a good shooting angle is provided for the fighter. However, due to the high recoil that occurs during continuous firing of the machine gun, bolts are typically used in the prior art to fix the relative position of the gun mount on the gun slide beam. However, due to the large assembly gap between the bolt and the side fixing hole of the gun sliding beam, the assembly gap can cause the bolt to impact the hole wall of the fixing hole under the impact of the recoil of shooting when a fighter shoots. This fit-up gap can accelerate the damage speed of bolt, causes the bolt to warp, the gun platform takes place position offset, influences the shooting precision, causes the problem that the bolt can't insert the gun sliding beam lateral part fixed orifices even.
Disclosure of Invention
The invention aims to provide a gun rack of a military helicopter, and aims to solve the problem that bolts and fixing holes used for fixing relative positions of a gun seat on a gun sliding beam are easy to damage in a gun buffer rack for a airplane in the prior art. To this end, the invention provides a gun carrier for a military helicopter, comprising:
the machine gun sliding beam is provided with a positioning hole for accommodating a positioning bolt at the side part in the length direction; the machine gun sliding beam is provided with a pivoting end which is pivoted on the fixing plate in a rotating manner and a rotating end which is driven to rotate by an angle;
a bolt face, comprising: a sliding connecting sleeve and a machine gun fixing sleeve; the sliding connecting sleeve is matched with the machine gun sliding beam in shape, the sliding connecting sleeve is driven to be arranged in the length direction of the machine gun sliding beam in a sliding mode, and the positioning bolt sequentially penetrates through the machine gun seat and the positioning hole and is fixed through a first positioning nut and a second positioning nut so as to fix the machine gun seat on the machine gun sliding beam;
adsorb positioning mechanism includes: the bolt fixing seat is arranged on the sliding connection sleeve, and the magnetic part is attracted with the bolt fixing seat;
the head of the positioning bolt is of a cylindrical structure provided with threads matched with the first positioning nut, and the middle of the positioning bolt is of a polished rod conical structure matched with the positioning hole; the tail part of the positioning bolt is provided with the second positioning nut fixedly connected with the positioning bolt.
Optionally, the magnetic component is an electrified coil connected with a power supply element through a controller, and the controller adjusts the intensity of electromagnetic force generated by the electrified coil through the power supply element.
Optionally, the magnetic component and the bolt fixing seat are magnets with opposite magnetism.
Optionally, an extension frame detachably connected with the sliding connection sleeve is arranged on the sliding connection sleeve;
one side of the extending frame facing the bolt fixing seat is also provided with a guide groove for accommodating the bolt fixing seat;
the magnetic part is arranged at the bottom of the guide groove, and when the positioning bolt is matched and connected with the positioning hole, a fastening gap for the bolt fixing seat to move towards the direction of the guide groove is further arranged between the magnetic part and the bottom of the guide groove.
Optionally, the fastening gap is no greater than 5 mm.
Optionally, the extending frame is fastened to the sliding connection sleeve through a screw.
Optionally, the gun rack of the military helicopter still includes:
fast-assembling mechanism includes: the quick-release plate is detachably connected with the extension frame through a fastening bolt, and the elastic element is fixed on the quick-release plate and connected with the bolt fixing seat;
when the positioning bolt is matched and connected with the positioning hole, the elastic element applies pressure towards the bolt fixing seat to enable the elastic element to move towards the direction of the bottom of the guide groove.
Optionally, the elastic element is a compression spring.
Optionally, a thread groove for clamping and fixing the positioning bolt is formed in the bolt fixing seat, and a thread matched with the thread groove is formed in one end, close to the second positioning nut, of the positioning bolt.
The using method of the gun rack of the military helicopter comprises the following installation steps:
s1, fixing the positioning bolt on a quick-release plate of the quick-assembly mechanism, and fastening the extension frame on the sliding connection sleeve;
s2, mounting and fixing the quick-release plate on the extension frame; during the process of installing the quick-release plate, the positioning bolt is inserted into the gun seat and the gun sliding beam;
s3, pre-fixing and installing a first positioning nut on the positioning bolt to enable the first positioning nut to be abutted against the sliding connecting sleeve;
s4, controlling a magnetic component to generate a magnetic field through a controller, and adjusting the size of the magnetic field according to the machining precision of the positioning bolt, so that the positioning bolt is attracted to move towards the positioning hole, and the positioning bolt with a conical structure is tightly matched and connected with the positioning hole;
and S5, tightening and fixing the first positioning nut, and controlling the magnetic component to keep a magnetic field by the controller in the gun shooting process.
Optionally, the use method of the gun rack of the military helicopter further includes the following disassembling steps:
s1, controlling the magnetic component to eliminate the magnetic field through the controller;
s2, removing the first positioning nut from the positioning bolt;
s3, detaching the quick-release plate from the extension frame; and in the process of dismantling the quick-release plate, the positioning bolt moves out of the gun seat and the gun sliding beam so as to remove the relative limit of the gun seat and the gun sliding beam.
The technical scheme of the invention has the following advantages:
1. the invention provides a gun rack of a military helicopter, which comprises: the machine gun sliding beam is provided with a positioning hole for accommodating a positioning bolt at the side part in the length direction; the machine gun sliding beam is provided with a pivoting end which is rotatably pivoted on the fixed plate and a rotating end which is driven to rotate by an angle; a bolt face, comprising: a sliding connecting sleeve and a machine gun fixing sleeve; the sliding connecting sleeve is matched with the machine gun sliding beam in shape, the sliding connecting sleeve is driven to be arranged in the length direction of the machine gun sliding beam in a sliding mode, and the positioning bolt sequentially penetrates through the machine gun seat and the positioning hole and is fixed through a first positioning nut and a second positioning nut so as to fix the machine gun seat on the machine gun sliding beam; adsorb positioning mechanism includes: the bolt fixing seat is arranged on the sliding connection sleeve, and the magnetic part is attracted with the bolt fixing seat; the head part of the positioning bolt is of a cylindrical structure provided with a thread matched with the first positioning nut, and the middle part of the positioning bolt is of a polished rod conical structure matched with the positioning hole; the tail part of the positioning bolt is provided with the second positioning nut fixedly connected with the positioning bolt.
In the invention, the part of the positioning bolt matched with the positioning hole is set to be a polished rod conical structure. And the magnetic part of the adsorption positioning mechanism attracts the bolt fixing seat, so that the positioning bolt moves towards the positioning hole, and the positioning bolt is tightly matched with the positioning hole. The adsorption positioning mechanism can effectively drive the positioning bolt to be pre-tightened and fixed with the positioning hole, so that the positioning bolt is further fastened and fixed through the first positioning nut. Moreover, the adsorption positioning mechanism can also effectively generate driving force in the shooting process of fighters, so that the positioning bolts are tightly matched with the positioning holes. The positioning bolt is tightly matched with the positioning hole, so that the gap between the positioning bolt and the positioning hole can be effectively reduced, and the damage of the buffering force generated by the machine gun in the shooting process to the positioning bolt is reduced.
2. According to the gun rack of the military helicopter provided by the invention, the magnetic component is an electrified coil connected with a power supply element through a controller, and the controller adjusts the strength of electromagnetic force generated by the electrified coil through the power supply element.
In the invention, the controller controls the electrified coil to generate a magnetic field, so that an operator can adjust the size of the suction force generated by the magnetic component according to actual needs, and further control the positioning bolt to be tightly connected with the positioning hole. If the positioning bolt is low in machining precision, the magnetic force of the magnetic part can be increased according to needs, and therefore the gap between the positioning bolt and the positioning hole is reduced.
3. The invention provides a gun rack of a military helicopter, which further comprises: fast-assembling mechanism includes: the quick-release plate is detachably connected with the extension frame through a fastening bolt, and the elastic element is fixed on the quick-release plate and connected with the bolt fixing seat; when the positioning bolt is matched and connected with the positioning hole, the elastic element applies pressure towards the bolt fixing seat to enable the elastic element to move towards the direction of the bottom of the guide groove.
In the invention, the quick assembly mechanism can effectively realize that the fastening bolt is arranged on the gun sliding beam and the gun fixing sleeve through the quick disassembly plate, or the fastening bolt which is deformed or reaches the service cycle is disassembled from the gun sliding beam and the gun fixing sleeve.
4. The bolt fixing seat is provided with a thread groove used for clamping and fixing the positioning bolt, and one end of the positioning bolt close to the second positioning nut is provided with a thread matched with the thread groove.
According to the invention, the bolt fixing seat and the positioning bolt are fixed together through the thread structure, so that the positioning bolt can be quickly and firmly fixed on the bolt fixing seat.
5. The invention provides a using method of a gun rack of a military helicopter, which comprises the following installation steps:
s1, fixing the positioning bolt on a quick-release plate of the quick-assembly mechanism, and fastening the extension frame on the sliding connection sleeve;
s2, mounting and fixing the quick-release plate on the extension frame; during the process of installing the quick-release plate, the positioning bolt is inserted into the gun seat and the gun sliding beam;
s3, pre-fixing and installing a first positioning nut on the positioning bolt to enable the first positioning nut to be abutted against the sliding connecting sleeve;
s4, controlling a magnetic component to generate a magnetic field through a controller, and adjusting the size of the magnetic field according to the machining precision of the positioning bolt, so that the positioning bolt is attracted to move towards the positioning hole, and the positioning bolt with a conical structure is tightly matched and connected with the positioning hole;
and S5, tightening and fixing the first positioning nut, and controlling the magnetic component to keep a magnetic field by the controller in the gun shooting process.
According to the invention, the quick assembly and disassembly of the positioning bolt can be effectively realized through the gun rack of the military helicopter. Moreover, more importantly, the magnetic part can effectively enable the positioning bolt and the positioning hole to be tightly matched, so that the positioning bolt and the positioning hole are tightly matched in the process of screwing and fixing the first positioning nut or in the process of gun shooting, the gap between the positioning bolt and the positioning hole is reduced or even eliminated to the maximum extent, the positioning bolt cannot shake in position in the process of gun shooting, the stress of the positioning bolt is more uniform, and the damage to the positioning bolt is reduced.
6. The use method of the gun rack of the military helicopter provided by the invention further comprises the following disassembly steps: s1, controlling the magnetic component to eliminate the magnetic field through the controller;
s2, removing the first positioning nut from the positioning bolt;
s3, detaching the quick-release plate from the extension frame; and in the process of dismantling the quick-release plate, the positioning bolt moves out of the gun seat and the gun sliding beam so as to remove the relative limit of the gun seat and the gun sliding beam.
In the invention, the quick-mounting mechanism can simply and quickly realize the disassembly of the positioning bolt, thereby facilitating the fighter to replace the positioning bolt in an emergency environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic perspective view of a machine gun buffer for a helicopter according to the present invention;
FIG. 2 is a schematic view of the internal structure of the adsorption positioning mechanism and the quick-assembly mechanism of the machine gun buffer rack provided by the invention;
FIG. 3 is a partially enlarged view of the connection structure of the magnetic member and the bolt holder driven to attract each other according to the present invention;
FIG. 4 is a schematic perspective view of a positioning bolt according to the present invention;
fig. 5 is a schematic perspective view of a gun mount according to the present invention.
Description of the reference numerals:
1-gun sliding beam; 2-positioning bolts; 3-positioning holes; 4, fixing a plate; 5-a pivot joint end; 6-a gun mount; 7-a sliding connection sleeve; 8-machine gun fixing sleeve; 9-a first positioning nut; 10-a second positioning nut; 11-bolt fixing seats; 12-a magnetic component; 13-an extension frame; 14-a guide groove; 15-a fastening gap; 16-a fastening bolt; 17-quick release plate; 18-elastic element.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
This embodiment describes a gun carrier for a military helicopter, as shown in fig. 1, comprising:
the machine gun sliding beam comprises a machine gun sliding beam 1, wherein a positioning hole 3 for accommodating a positioning bolt 2 is formed in the side part of the machine gun sliding beam 1 in the length direction;
the bolt support 6, as shown in fig. 5, comprises: a sliding connecting sleeve 7 and a machine gun fixing sleeve 8; the sliding connection sleeve 7 is matched with the gun sliding beam 1 in shape, the sliding connection sleeve 7 is driven to be arranged in the length direction of the gun sliding beam 1 in a sliding mode, the positioning bolt 2 sequentially penetrates through the gun base 6 and the positioning hole 3 and is fixed through a first positioning nut 9 and a second positioning nut 10, and the gun base 6 is fixed on the gun sliding beam 1;
adsorb positioning mechanism includes: the bolt fixing seat 11 and the magnetic part 12 are arranged on the sliding connecting sleeve 7 and mutually attracted with the bolt fixing seat 11; as shown in fig. 2 and 3, the magnetic component 12 is an electrified coil connected to a power supply unit through a controller, and the controller adjusts the intensity of the electromagnetic force generated by the electrified coil through the power supply unit. The sliding connecting sleeve 7 is also provided with an extension frame 13 detachably connected with the sliding connecting sleeve; one side of the extending frame 13 facing the bolt fixing seat 11 is further provided with a guide groove for accommodating the bolt fixing seat 11; the magnetic component 12 is arranged at the bottom of the guide groove 14, and when the positioning bolt 2 is connected with the positioning hole 3 in a matching manner, a fastening gap 15 for the bolt fixing seat 11 to move towards the direction of the guide groove 14 is further arranged between the magnetic component 12 and the bottom of the guide groove 14. The depth of the fastening gap 15 is 3 mm. The controller is used for adjusting the electrified coil to generate a magnetic field, so that an operator can adjust the size of the suction force generated by the magnetic component 12 according to actual needs, and further control the positioning bolt 2 to be tightly connected with the positioning hole 3. If the positioning bolt 2 has low machining precision, the magnetic force of the magnetic part 12 can be increased according to the requirement, so that the gap between the positioning bolt 2 and the positioning hole 3 is reduced; as shown in fig. 4, the head of the positioning bolt 2 is a cylindrical structure provided with a thread adapted to the first positioning nut 9, and the middle of the positioning bolt 2 is a smooth rod tapered structure adapted to the positioning hole 3; the tail part of the positioning bolt 2 is provided with the second positioning nut 10 fixedly connected with the positioning bolt;
the fast-assembling mechanism, as shown in fig. 2, the extension frame 13 is fixedly connected with the sliding connection sleeve 7 through a screw. And the fast-assembling mechanism includes: a quick release plate 17 detachably connected to the extension frame 13 via a fastening bolt 16, and an elastic element 18 fixed to the quick release plate 17 and connected to the bolt fixing seat 11; when the positioning bolt 2 is in fit connection with the positioning hole 3, the elastic element 18 applies a pressure to the bolt fixing seat 11 to move the bolt fixing seat toward the bottom of the guide groove 14. The elastic member 18 is a compression spring.
In this embodiment, the bolt fixing seat 11 is provided with a thread groove for clamping and fixing the positioning bolt 2, and one end of the positioning bolt 2 close to the second positioning nut 10 is provided with a thread adapted to the thread groove. Through above-mentioned helicitic texture with bolt fixing base 11 and positioning bolt 2 fixed together, can swiftly firmly fix positioning bolt 2 on bolt fixing base 11.
The use method of the gun rack of the military helicopter in the embodiment comprises the following installation steps:
s1, fixing the positioning bolt 2 on a quick-release plate 17 of the quick-assembly mechanism, and fastening the extension frame 13 on the sliding connection sleeve 7;
s2, mounting and fixing the quick-release plate 17 on the extension frame 13; during the process of installing the quick release plate 17, the positioning bolt 2 is inserted into the gun mount 6 and the gun sliding beam 1;
s3, pre-fixing and installing a first positioning nut 9 on the positioning bolt 2, and enabling the first positioning nut 9 to be abutted with the sliding connecting sleeve 7;
s4, controlling the magnetic component 12 to generate a magnetic field through a controller, and adjusting the size of the magnetic field according to the machining precision of the positioning bolt 2, so as to attract the positioning bolt 2 to move towards the positioning hole 3, and thus the positioning bolt 2 with a conical structure is tightly matched and connected with the positioning hole 3;
and S5, tightening and fixing the first positioning nut 9, and controlling the magnetic part 12 to keep the magnetic field by the controller in the gun shooting process.
In the using method of the gun rack of the military helicopter in the embodiment, the disassembling steps are as follows:
s1, controlling the magnetic component 12 to eliminate the magnetic field by the controller;
s2, removing the first positioning nut 9 from the positioning bolt 2;
s3, detaching the quick-release plate 17 from the extension frame 13; in the process of dismounting the quick release plate 17, the positioning bolt 2 moves out of the gun mount 6 and the gun sliding beam 1 to release the relative limit of the gun mount 6 and the gun sliding beam 1.
Of course, in this embodiment, the depth of the fastening gap 15 is not particularly limited, and in other embodiments, the depth of the fastening gap 15 may also be 5 mm.
Of course, in the present embodiment, the structure of the elastic element 18 is not particularly limited, and in other embodiments, the elastic element 18 is an elastic rubber member.
In the present embodiment, of course, the structure of the elastic member 18 is not particularly limited, and in other embodiments,
example 2
This embodiment is described in terms of a gun carrier for a military helicopter, as shown in fig. 1, comprising:
the machine gun sliding beam comprises a machine gun sliding beam 1, wherein a positioning hole 3 for accommodating a positioning bolt 2 is formed in the side part of the machine gun sliding beam 1 in the length direction;
a bolt face 6, comprising: a sliding connecting sleeve 7 and a machine gun fixing sleeve 8; the sliding connection sleeve 7 is matched with the gun sliding beam 1 in shape, the sliding connection sleeve 7 is driven to be arranged in the length direction of the gun sliding beam 1 in a sliding mode, the positioning bolt 2 sequentially penetrates through the gun base 6 and the positioning hole 3 and is fixed through a first positioning nut 9 and a second positioning nut 10, and the gun base 6 is fixed on the gun sliding beam 1;
adsorb positioning mechanism includes: the bolt fixing seat 11 and the magnetic part 12 are arranged on the sliding connecting sleeve 7 and mutually attracted with the bolt fixing seat 11; the magnetic component 12 and the bolt fixing seat 11 are magnets with opposite magnetism; the bolt fixing seat 11 and the magnetic component 12 can be effectively attracted to each other through the magnet;
the head of the positioning bolt 2 is of a cylindrical structure provided with threads matched with the first positioning nut 9, and the middle part of the positioning bolt 2 is of a polished rod conical structure matched with the positioning hole 3; the tail part of the positioning bolt 2 is provided with the second positioning nut 10 fixedly connected with the positioning bolt.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A gun rack of a military helicopter, comprising:
the machine gun sliding beam (1), wherein a positioning hole (3) for accommodating a positioning bolt (2) is formed in the side part of the machine gun sliding beam (1) in the length direction;
a bolt carrier (6) comprising: a sliding connecting sleeve (7) and a machine gun fixing sleeve (8); the sliding connection sleeve (7) is matched with the machine gun sliding beam (1) in shape, the sliding connection sleeve (7) is driven to be arranged in the length direction of the machine gun sliding beam (1) in a sliding mode, the positioning bolt (2) sequentially penetrates through the machine gun base (6) and the positioning hole (3) and is fixed through a first positioning nut (9) and a second positioning nut (10) so that the machine gun base (6) is fixed on the machine gun sliding beam (1);
adsorb positioning mechanism includes: the bolt fixing seat (11) and a magnetic component (12) are arranged on the sliding connecting sleeve (7) and mutually attracted with the bolt fixing seat (11);
the head of the positioning bolt (2) is of a cylindrical structure provided with threads matched with the first positioning nut (9), and the middle part of the positioning bolt (2) is of a polished rod conical structure matched with the positioning hole (3); the tail part of the positioning bolt (2) is provided with the second positioning nut (10) fixedly connected with the positioning bolt;
the magnetic component (12) is an electrified coil connected with a power supply element through a controller, and the controller adjusts the strength of electromagnetic force generated by the electrified coil through the power supply element;
the sliding connecting sleeve (7) is provided with an extension frame (13) detachably connected with the sliding connecting sleeve; one side of the extending frame (13) facing the bolt fixing seat (11) is also provided with a guide groove for accommodating the bolt fixing seat (11); the magnetic part (12) is arranged at the bottom of the guide groove (14), and when the positioning bolt (2) is matched and connected with the positioning hole (3), a fastening gap (15) for the bolt fixing seat (11) to move towards the direction of the guide groove (14) is further arranged between the magnetic part (12) and the bottom of the guide groove (14).
2. The gunrack of a military helicopter according to claim 1, characterized in that said magnetic component (12) and said bolt holder (11) are magnets of opposite magnetic polarity.
3. The gun rest for military helicopters according to claim 1, characterized in that said fastening gap (15) is not greater than 5 mm.
4. The gun rest for military helicopters according to claim 1, characterized in that said extension frame (13) is solidly connected to said sliding connection sleeve (7) by means of screws.
5. The gunframe of a military helicopter of claim 1, further comprising:
fast-assembling mechanism includes: a quick-release plate (17) detachably connected with the extension frame (13) through a fastening bolt (16), and an elastic element (18) fixed on the quick-release plate (17) and connected with the bolt fixing seat (11);
when the positioning bolt (2) is matched and connected with the positioning hole (3), the elastic element (18) applies pressure towards the bolt fixing seat (11) to enable the elastic element to move towards the direction of the bottom of the guide groove (14).
6. The gunrack of a military helicopter of claim 5, wherein said elastic element (18) is a compression spring.
7. The gun rack of a military helicopter of claim 1, characterized in that the bolt fixing seat (11) is provided with a thread groove for clamping and fixing the positioning bolt (2), and one end of the positioning bolt (2) close to the second positioning nut (10) is provided with a thread matched with the thread groove.
8. A method of using the gun carrier of a military helicopter of claim 1, comprising the steps of:
s1, fixing the positioning bolt (2) on a quick-release plate (17) of the quick-assembly mechanism, and fastening an extension frame (13) on the sliding connection sleeve (7);
s2, mounting and fixing the quick-release plate (17) on the extension frame (13); during the process of installing the quick-release plate (17), the positioning bolt (2) is inserted into the gun seat (6) and the gun sliding beam (1);
s3, pre-fixing and installing a first positioning nut (9) on the positioning bolt (2) to enable the first positioning nut (9) to be abutted against the sliding connecting sleeve (7);
s4, controlling a magnetic component (12) to generate a magnetic field through a controller, and adjusting the size of the magnetic field according to the machining precision of the positioning bolt (2), so that the positioning bolt (2) is attracted to move towards the positioning hole (3), and the positioning bolt (2) with a conical structure is tightly matched and connected with the positioning hole (3);
s5, the first positioning nut (9) is screwed down and fixed, and the controller controls the magnetic component (12) to keep a magnetic field during gun shooting.
9. The method of using a gun rack of a military helicopter of claim 8, further comprising the steps of:
s1, controlling the magnetic component (12) to eliminate the magnetic field through the controller;
s2, the first positioning nut (9) is taken down from the positioning bolt (2);
s3, detaching the quick-release plate (17) from the extension frame (13); in the process of dismantling the quick-release plate (17), the positioning bolt (2) moves out of the gun mount (6) and the gun sliding beam (1) so as to relieve the relative limit of the gun mount (6) and the gun sliding beam (1).
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| SU355829A1 (en) * | 1970-11-12 | 1980-06-15 | Nevskij Yu B | Device for investigating effect of overloads on man rotating on centrifuge |
| DD300561A5 (en) * | 1988-05-11 | 1992-06-17 | Zentr F Forschung U Technik Be | Locking device for rockets for attachment to aircraft, in particular helicopters |
| US9428273B1 (en) * | 2013-07-22 | 2016-08-30 | Contract Fabrication and Design, LLC | Helicopter crew-served weapon mounting apparatus |
| CN106697294A (en) * | 2016-12-30 | 2017-05-24 | 北京摩诘创新科技股份有限公司 | Machine gun installing bracket of helicopter cabin door |
| CN207647908U (en) * | 2017-12-06 | 2018-07-24 | 东方电气集团东方电机有限公司 | A kind of magnetism side adsorbent equipment |
| CN109625022A (en) * | 2018-12-10 | 2019-04-16 | 王建荣 | A kind of rail traffic goat friction axis coupling |
| CN211370975U (en) * | 2019-12-30 | 2020-08-28 | 无锡巧菲雅精密机械有限公司 | Anti-loosening nut structure |
| CN211874918U (en) * | 2020-03-18 | 2020-11-06 | 青岛德兴索具有限公司 | Anti-loosening and anti-skid bolt structure |
| CN214787995U (en) * | 2021-04-15 | 2021-11-19 | 芜湖市容川机电科技股份有限公司 | Driven screw for vacuum pump |
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| CN114750960A (en) | 2022-07-15 |
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