Antiaircraft machine gun fixing device of assault vehicle gun-replacing-gun training system

Abstract

The utility model discloses an antiaircraft machine gun fixing device of an assault vehicle gun-replacing-gun training system, which comprises an ammunition chamber and a positioning component, the ammunition chamber is positioned in the front middle of a machine gun and comprises a front ammunition chamber and a rear ammunition chamber, the positioning component comprises a front supporting component and a rear supporting component, the front supporting component is an elastic supporting component, and the rear supporting component is an elastic supporting component. The conical surface of the front supporting assembly is attached to the conical surface of the front ammunition chamber, the rear supporting assembly is adjustably connected with the rear ammunition chamber, and the central axis of the positioning assembly coincides with the axis of the ammunition chamber. The centering and positioning accuracy of the machine gun is ensured, the situation that vibration is generated in gaps between the front supporting ring and the conical surface of the ammunition chamber and between the rear supporting ring and the conical surface of the ammunition chamber during shooting is avoided, and the shooting precision is improved.

Description

Technical Field

[0001] The utility model relates to a machine gun fixing device, in particular to an anti-aircraft machine gun fixing device applied to an assault vehicle gun-in-lieu-of-cannon training system, belonging to the field of military training equipment. Background Art

[0002] Nowadays, in the field of military training equipment, modified tank-type gun-substituting-artillery training systems are often used to replace assault vehicle gun-substituting-artillery training systems for training. Gun-substituting-artillery means fixing the anti-aircraft machine gun inside the artillery, replacing artillery shooting with machine gun shooting to reduce training costs. The tank-type gun-substituting-artillery training system controls the accuracy of anti-aircraft machine gun shooting by centering the front and middle of the machine gun. The front part of a conventional anti-aircraft machine gun is fixed in a suitable fixed position in the machine gun by the front support ring and the rear support ring to achieve the centering of the entire machine gun. However, during installation, it is easy for the cone surface of the front support ring and the front cone surface of the ammunition chamber to not be installed in place, resulting in a gap, which makes the centering between the machine gun and the ammunition chamber inaccurate, and then the barrel vibrates during the subsequent anti-aircraft machine gun shooting, resulting in reduced shooting accuracy. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a training device which can realize the accurate centering and positioning of the ammunition chamber and the machine gun through an adjustable positioning component.

[0004] In order to solve the above technical problems, the utility model provides an anti-aircraft machine gun fixing device for an assault vehicle-gun-in-lieu-of-artillery training system, comprising an ammunition chamber and a positioning assembly, wherein the ammunition chamber is located in the front center of the machine gun, the ammunition chamber comprises a front ammunition chamber and a rear ammunition chamber, the positioning assembly comprises a front support assembly and a rear support assembly, the front support assembly is an elastic support assembly, the conical surface of the front support assembly is fitted with the conical surface of the front ammunition chamber, the rear support assembly is adjustably connected to the rear ammunition chamber, and the central axis of the positioning assembly coincides with the axis of the ammunition chamber.

[0005] The front support assembly in the utility model comprises a first compression spring, a second compression spring and a front support ring, wherein the first compression spring and the second compression spring are respectively arranged at two ends of the front support ring, and the conical surface of the front support ring fits with the conical surface of the front ammunition chamber.

[0006] The rear support assembly in the utility model comprises an adjusting bolt and a rear support ring, the rear end of the rear support ring is adjustably connected to the adjusting bolt, and the rear support ring is fixed to the rear end of the rear ammunition chamber.

[0007] The front end of the ammunition chamber in the utility model is connected with a plurality of chamber protection tubes, and the plurality of chamber protection tubes are detachably connected through a spring positioning structure.

[0008] The rear end of the ammunition chamber in the utility model is provided with a machine gun fixing frame, the machine gun fixing frame is a split structure, the split parts of the machine gun fixing frame are clamped in the machine gun, the machine gun fixing frame and the machine gun can be pushed to move along the axis of the cannon in the cannon, the machine gun fixing frame and the anti-aircraft machine gun are clamped by a clamping device, and then fixed to the rear end of the ammunition chamber.

[0009] Beneficial effects of the utility model:

[0010] 1. The utility model achieves the coincidence of the firing axis of the machine gun and the firing axis of the artillery through the adjustable positioning component and the complete fit with the conical surface of the ammunition chamber, thereby ensuring the accuracy of the centering and positioning of the machine gun, avoiding the vibration of the gap between the front support ring and the rear support ring and the conical surface of the ammunition chamber during shooting, and improving the shooting accuracy;

[0011] 2. The front support assembly is elastically adjusted through the first compression spring and the second compression spring located on both sides of the front support ring. The front and rear positions of the front support ring are automatically adjusted by the elastic force of the spring. Compared with the non-adjustable front support ring, this avoids the problem of displacement of the front support ring due to the push and pull force when the machine gun is shooting, squeezing the artillery ammunition chamber, and damaging the equipment, thereby protecting the artillery equipment;

[0012] 3. The detachable barrel guards are connected by a spring positioning structure, which solves the time-consuming and labor-intensive problem of conventional barrel guard thread connection, avoids the hidden danger of the barrel guard loosening due to thread connection, and improves the stability of the entire barrel guard;

[0013] 4. The structure of the machine gun fixing frame moving forward along the axis of the gun makes the machine gun firing axis always coaxial with the axis of the gun, which solves the slight deviation caused by the conventional lever-type lifting structure and further ensures the firing accuracy of the machine gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of an anti-aircraft machine gun fixing device for an assault vehicle-gun-in-lieu-of-artillery training system;

[0016] Figure 2 The diagram is a schematic diagram of the spring positioning structure in an anti-aircraft machine gun fixing device of an assault vehicle-gun-in-lieu-of-artillery training system. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0024] like Figure 1 , 2 As shown, an anti-aircraft machine gun fixing device of an assault vehicle-gun-in-lieu-of-artillery training system in this embodiment includes an ammunition chamber and a positioning assembly, the ammunition chamber is located in the front center of the machine gun, the ammunition chamber includes a front ammunition chamber 1 and a rear ammunition chamber 2, the positioning assembly includes a front support assembly and a rear support assembly, the front support assembly is an elastic support assembly, the conical surface of the front support assembly is fitted with the conical surface of the front ammunition chamber 1, the rear support assembly is adjustably connected to the rear ammunition chamber 2, and the central axis of the positioning assembly coincides with the axis of the ammunition chamber.

[0025] Conventional non-adjustable positioning components are prone to cause a gap between the machine gun fixing device and the artillery ammunition chamber during installation, resulting in excessive bullet dispersion due to the vibration of the barrel with the gap during shooting, affecting the shooting accuracy. In this embodiment, the ammunition chamber is located inside the artillery, and the positioning component is arranged on the outside of the machine gun. The machine gun is fixed to the inside of the artillery ammunition chamber through the positioning component. During the installation process, the elastic front support component and the adjustable rear support component automatically move to the closest point to the artillery ammunition chamber, reducing the gap between the front support component and the conical surface of the artillery ammunition chamber, and improving the shooting accuracy of the machine gun during shooting while ensuring that the shooting axis of the machine gun is consistent with the shooting axis of the artillery.

[0026] The front support assembly in the utility model comprises a first compression spring 3, a second compression spring 4 and a front support ring 5. The first compression spring 3 and the second compression spring 4 are respectively arranged at two ends of the front support ring 5. The conical surface of the front support ring 5 fits with the conical surface of the front ammunition chamber 1.

[0027] One end of the first compression spring 3 is connected to the machine gun through a washer, and the other end is connected to the front support ring 5. One end of the second compression spring 4 is connected to the front support ring 5, and the other end is locked with the connecting pipe 11 through a locking washer. During the installation process, the front support ring 5 is automatically adjusted to the position that best fits the conical surface of the front ammunition chamber 1 through the interaction between the first compression spring 3 and the second compression spring 4. After the installation is completed, since the entire machine gun is locked in the ammunition chamber and no longer makes axial movement, the front support ring 5 on the machine gun will not make axial movement either, and the entire front support assembly is in a fixed state in the front ammunition chamber 1 of the artillery.

[0028] The rear support assembly in the utility model includes an adjusting bolt 6 and a rear support ring 7. The tail end of the rear support ring 7 is adjustably connected to the adjusting bolt 6. The rear support ring 7 is fixed to the tail end of the rear ammunition chamber 2. One end of the adjusting bolt 6 is fixed to the middle of the anti-aircraft machine gun, and the other end is threadedly connected to the rear support ring 7. The rear support ring 7 adjusts the axial position through the thread on the adjusting bolt 6, providing a sufficient axial distance for the front support ring 5, so that the front support ring 5 can reach a position that fits the conical surface of the front ammunition chamber 1.

[0029] The front end connection of the ammunition chamber in the utility model is provided with a plurality of sections of barrel guard tubes 8, and the plurality of barrel guard tubes 8 are detachably connected with each other through a spring positioning structure. In the present embodiment, the spring positioning structure comprises a spring positioning pin 12 and a positioning sleeve 13. The spring positioning pin 12 and a small compression spring 14 are installed in the positioning sleeve 13. The cover plate 15 and the fixing screw 16 are used for compression and fixing. The handle 17 is connected with the spring positioning pin 12 through a cylindrical pin 18. During installation, the two sections of barrel guard tubes 8 are screwed into the barrel guard tube support 19 and then locked through the barrel guard tube support nut 20. Thereafter, the spring positioning pin 12 is pulled up through the lifting handle 17. After one section of the barrel guard tube 8 is inserted into place along the alignment line of the other section of the barrel guard tube 8, the lifting handle 17 is released. Under the pressure of the small compression spring 14, the spring positioning pin 12 is automatically inserted into the positioning hole of the other section of the barrel guard tube 8 to achieve fixation.

[0030] Compared with the conventional threaded connection method, the disassembly method through the spring positioning structure saves the time and labor of threaded connection, reduces the hidden danger of loosening of the barrel guard caused by the forward and reverse installation of the thread, and reduces the difficulty of use and maintenance.

[0031] The rear end of the ammunition chamber in the utility model is provided with a machine gun fixing frame 9, which is a split structure. The split parts of the machine gun fixing frame 9 are clamped in the machine gun. The machine gun fixing frame 9 and the machine gun can be pushed to move along the axis of the cannon in the cannon. The machine gun fixing frame 9 and the anti-aircraft machine gun are clamped by a clamping device 10. The structure of the machine gun fixing frame 9 moving along the axis of the cannon makes the entire machine gun shooting axis coaxial with the cannon axis, solves the deviation of the shooting axis caused by the conventional lever-type lifting structure, and improves the shooting accuracy.

[0032] When the utility model is actually used, by pulling forward at the muzzle and pushing forward at the tail of the gun, the entire front support assembly achieves the purpose of automatically adjusting the position of the front support ring 5 through the compression and extension of the first compression spring 3 and the second compression spring 4, and the purpose of completely fitting the conical surface of the front support ring 5 of the machine gun with the front ammunition chamber 1 of the artillery is achieved. The length of the connection between the rear support ring 7 and the adjustment bolt 6 is adjusted, and a sufficient axial distance is provided for the front support ring 5 under the premise of ensuring the centering positioning of the machine gun at the rear ammunition chamber 2. Then, the machine gun fixing frame 9 is moved along The axis of the firing gun is pushed toward the muzzle until the entire anti-aircraft machine gun can no longer be pushed forward. At this time, the front support ring 5 is completely fitted with the conical surface of the front ammunition chamber 1. The machine gun fixing frame 9 is pressed against the anti-aircraft machine gun by the clamping device 10. The installed multi-section barrel guard tube 8 is pushed in from the muzzle and reversed to be connected, so that the barrel guard tube 8 is threadedly connected to the muzzle and locked. The two-point positioning of the front support ring 5 and the rear support ring 7 in the entire machine gun ensures the coincidence of the axis of the barrel and the axis of the gun, solves the problem of excessive shooting dispersion caused by barrel vibration, and improves shooting accuracy.

[0033] In the above description, many specific details are elaborated to facilitate a full understanding of the present invention. However, the above examples are merely preferred implementation methods of the present invention and cannot be used to limit the scope of rights of the present invention. Simple modifications and equivalent changes made to the above examples based on the essence of the present invention still fall within the scope of the present invention.

Claims

1. An anti-aircraft machine gun fixing device for an assault vehicle-gun-in-lieu-of-artillery training system, characterized by: The invention comprises an ammunition chamber and a positioning assembly, wherein the ammunition chamber comprises a front ammunition chamber (1) and a rear ammunition chamber (2), and the positioning assembly comprises a front support assembly and a rear support assembly, wherein the front support assembly is an elastic support assembly, the conical surface of the front support assembly is arranged to fit the conical surface of the front ammunition chamber (1), the rear support assembly is adjustably connected to the rear ammunition chamber (2), and the central axis of the positioning assembly coincides with the axis of the ammunition chamber.

2. The anti-aircraft machine gun fixing device of the assault vehicle gun-in-lieu-of-artillery training system according to claim 1 is characterized by: The front support assembly comprises a first compression spring (3), a second compression spring (4) and a front support ring (5); the first compression spring (3) and the second compression spring (4) are respectively arranged at two ends of the front support ring (5); and the conical surface of the front support ring (5) is in contact with the conical surface of the front ammunition chamber (1).

3. The anti-aircraft machine gun fixing device of the assault vehicle gun-in-lieu-of-artillery training system according to claim 1 is characterized by: The rear support assembly comprises an adjustment bolt (6) and a rear support ring (7), the rear end of the rear support ring (7) being adjustably connected to the adjustment bolt (6), and the rear support ring (7) being fixed to the rear end of the rear ammunition chamber (2).

4. The anti-aircraft machine gun fixing device of the assault vehicle-gun-in-lieu-of-artillery training system according to any one of claims 1 to 3, characterized in that: The front end of the ammunition chamber is connected to a plurality of chamber protection tubes (8), and the plurality of chamber protection tubes (8) are detachably connected to each other via a spring positioning structure.

5. The anti-aircraft machine gun fixing device of the assault vehicle gun-in-lieu-of-artillery training system according to claim 4 is characterized by: A machine gun fixing frame (9) is arranged at the rear end of the ammunition chamber. The machine gun fixing frame (9) is a split structure. The split parts of the machine gun fixing frame (9) are clamped in the machine gun. The machine gun fixing frame (9) and the machine gun can be pushed to move along the axis of the cannon in the cannon. The machine gun fixing frame (9) and the anti-aircraft machine gun are pressed by a pressing device (10) and then fixed to the rear end of the ammunition chamber.

6. The anti-aircraft machine gun fixing device of the assault vehicle-gun-in-lieu-of-artillery training system according to any one of claims 1 to 3, characterized in that: A machine gun fixing frame (9) is arranged at the rear end of the ammunition chamber. The machine gun fixing frame (9) is a split structure. The split parts of the machine gun fixing frame (9) are clamped in the machine gun. The machine gun fixing frame (9) and the machine gun can be pushed to move along the axis of the cannon in the cannon. The machine gun fixing frame (9) and the anti-aircraft machine gun are pressed by a pressing device (10) and then fixed to the rear end of the ammunition chamber.

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