Recoil buffering device for howitzer

Abstract

The invention discloses a howitzer recoil buffering device which is applied to the field of weapon buffering and comprises a buffering assembly, the buffering assembly comprises a buffering box, two sets of second cavities are symmetrically formed in the buffering box, and second isolation plugs are slidably connected to the interiors of the second cavities; a first cavity and a third cavity are symmetrically formed in the upper end and the lower end of the second cavity, a first isolation plug and a third isolation plug are slidably connected into the second cavity, a sealing ring is installed on a shaft body of each set of isolation plugs, each set of isolation plugs divides the corresponding cavity into two spaces, high-pressure gas is contained in the space at the left end of the first isolation plug, and high-pressure gas is contained in the space at the right end of the third isolation plug. Hydraulic oil is contained in the space at the right end of the first isolation plug, high-pressure gas is contained in the space at the left end of the second isolation plug, hydraulic oil is contained in the space at the right end of the second isolation plug, high-pressure gas is contained in the third cavity, and tiny airflow holes are formed in the third isolation plug. The device has the characteristic of buffering recoil of the howitzer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of weapon buffering technology, in particular to a recoil buffering device for a howitzer. BACKGROUND

[0002] A howitzer is a kind of artillery with a core feature of a curved trajectory. With the advantages of curved trajectory coverage, firepower mobility and cost, the howitzer is still the core equipment for ground suppression of the army.

[0003] The recoil force of the howitzer, as the reaction force generated by the propellant gas during firing, directly affects the structural safety, firing accuracy, mobility and personnel operation of the artillery. In daily training, in order to save costs, a howitzer simulation device is often used for firing training, so the recoil force impact on the simulation device is much smaller than that in the real firing condition. Under the prior art, the structure of the recoil force buffering device of the real howitzer is usually large. If the real recoil force buffering device is used in the simulation device, not only the training cost is increased, but also the use of the trainees is inconvenient.

[0004] Therefore, how to reduce the structure of the recoil force buffering device in the simulation firing device has become a problem to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a recoil buffering device for a howitzer to solve the problems raised in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a recoil buffering device for a howitzer, comprising a base, a numerical control module and a buffering assembly, the buffering assembly comprising a buffering box, the bottom end of the buffering box being provided with a second loading slot, the inside of the buffering box being symmetrically provided with two groups of second chambers, the inside of the second chamber being slidably connected with a second isolation plug, the upper and lower ends of the second chamber being symmetrically provided with a first chamber and a third chamber, and the inside of the first chamber and the third chamber being slidably connected with a first isolation plug and a third isolation plug respectively, the shaft of each group of isolation plugs being provided with a sealing ring, and each group of isolation plugs dividing the corresponding chamber into two spaces; The first isolation plug and the third isolation plug are connected with a fixed rod on the side facing the right, a sealing ring is installed between each group of fixed rods and each group of chambers, a liquid passage is formed in the inside of the buffering box, the liquid passage communicates the first chamber and the second chamber, a throttling orifice plate is fixedly installed in the inside of the liquid passage, a plurality of throttling holes are formed in the inside of the throttling orifice plate, the port of the second chamber communicated by the liquid passage is processed into an arc shape, and the throttling holes close to the port of the second chamber are also processed into an arc shape.

[0007] According to the technical scheme, the first chamber is provided with high-pressure gas in the space at the left end of the first isolation plug and hydraulic oil in the space at the right end of the first isolation plug, the second chamber is provided with high-pressure gas in the space at the left end of the second isolation plug and hydraulic oil in the space at the right end of the second isolation plug, and the third chamber is provided with high-pressure gas and a small air flow hole is formed in the third isolation plug to connect the spaces at the left and right of the third isolation plug.

[0008] According to the technical scheme, the inside of the base is provided with a bottom plate, the upper end of the bottom plate is connected with an upper plate, the upper end of the upper plate is connected with an upper cover, and an installation window is formed in the front of the upper cover.

[0009] According to the technical scheme, the upper end of the upper plate is provided with a barrel assembly, the barrel assembly is located in the installation window of the upper cover, and the barrel assembly comprises a simulation barrel and a barrel pipe, and the left and right ends of the barrel assembly are connected with the upper cover.

[0010] According to the technical scheme, the inside of the simulation barrel is provided with a sliding groove, the rear end of the simulation barrel is provided with a buffer groove, the bottom of the buffer groove is provided with a first loading groove, and the inner diameter of the first loading groove is the same as the outer diameter of the barrel pipe.

[0011] According to the technical scheme, a boss is symmetrically arranged on the shaft of the barrel pipe close to the firing end, the barrel pipe penetrates the simulation barrel, the boss is in sliding connection with the sliding groove, a section of the shaft of the barrel pipe away from the firing end is processed into a semicircular pipe, the inner and outer diameters of the semicircular pipe are the same as those of the barrel pipe, and the semicircular pipe is processed with a certain arc, and the barrel pipe is arranged in the first loading groove.

[0012] According to the technical scheme, the second loading groove has the same size as the semicircular pipe, when the buffer assembly is connected with the barrel assembly, the first loading groove and the second loading groove form a coaxial channel, and the barrel pipe is located in the channel.

[0013] According to the technical scheme, the buffer assembly is in sliding connection in the buffer groove, and one end of each of the fixing rods away from the buffer box is fixedly connected with the simulation barrel.

[0014] According to the technical scheme, a closed groove is formed in the upper end of the buffer box, the closed groove penetrates the buffer box and is in communication with the second loading groove, a baffle assembly is in sliding connection in the closed groove, and the baffle assembly comprises a baffle, the lower half of the baffle is processed into a semicircle, and the diameter of the baffle is the same as the inner diameter of the semicircular pipe.

[0015] According to the technical scheme, the upper end of the buffer tank is provided with a fixing seat, the fixing seat is circular in shape, the closed groove is surrounded inside the circular ring, the upper end of the fixing seat is provided with a groove, the upper end of the fixing seat is provided with a rotating plate, the rotating plate is slidably connected with the groove of the fixing seat, the upper end of the rotating plate is provided with a through hole with the same length and width structure as the baffle, a plurality of operating rods are fixedly installed around the through hole, and the upper end of the rotating plate is provided with a pull rod.

[0016] Compared with the prior art, the present application has the advantages that: by setting the baffle assembly, the barrel is blocked, the energy loss during ammunition launching is reduced, and the operator is protected; by setting the buffer assembly, the recoil force generated during grenade launcher launching can be effectively buffered, and the damage to the equipment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, which together with the embodiments of the present application, serve to explain the present application, and do not constitute a limitation on the present application. In the drawings: Figure 1 is a structure schematic view of the grenade launcher simulation device of the present application; Figure 2 is a structure schematic view of the upper cover of the present application; Figure 3 is a structure schematic view of the inside of the upper cover of the present application; Figure 4 is a structure schematic view of the barrel assembly of the present application; Figure 5 is a structure schematic view of the simulation barrel of the present application; Figure 6 is a rear view schematic view of the simulation barrel of the present application; Figure 7 is a structure schematic view of the barrel of the present application; Figure 8 is a structure schematic view of the buffer assembly of the present application; Figure 9 is an explosion schematic view of the baffle assembly of the present application; Figure 10 is a structure schematic view of the buffer tank of the present application; Figure 11 is a cross-sectional view of the buffer tank of the present application; Figure 12 is a cross-sectional view of the second chamber of the present application; Figure 13 is a schematic view of area A of the present application Figure 12 ​In the figure: 1, base; 2, bottom plate; 3, upper plate; 4, upper cover; 5, barrel assembly; 6, simulated barrel; 7, cannon barrel; 701, boss; 702, semicircular tube; 8, buffer box; 9, closed groove; 10, first chamber; 11, third chamber; 12, second chamber; 13, first isolation plug; 14, second isolation plug; 15, third isolation plug; 16, fixed rod; 17, sealing ring; 18, baffle; 19, fixing seat; 20, rotating plate; 21, through hole; 22, operating rod; 23, pull rod; 24, second loading slot; 25, buffer groove; 26, first loading slot; 27, throttle orifice plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] Embodiment one: please refer to Figures 1-3 The present application provides a technical solution: a recoil buffer device for a howitzer, comprising a base 1 and a numerical control module, the numerical control module is used for receiving signals and issuing instruction signals to corresponding devices, the inside of the base 1 is provided with a bottom plate 2, the upper end of the bottom plate 2 is connected with an upper plate 3, the upper end of the upper plate 3 is connected with an upper cover 4, and an installation window is formed in the front of the upper cover 4.

[0020] Please refer to Figures 3-7 The upper end of the upper plate 3 is provided with a barrel assembly 5, the barrel assembly 5 is located in the installation window of the upper cover 4, the barrel assembly 5 comprises a simulated barrel 6 and a cannon barrel 7, a sliding groove (not shown in the figure) is formed in the inside of the simulated barrel 6, a buffer groove 25 is formed in the rear end of the simulated barrel 6, a first loading slot 26 is formed in the bottom of the buffer groove 25, the inner diameter of the first loading slot 26 is the same as the outer diameter of the cannon barrel 7, bosses 701 are symmetrically installed on the shaft of the cannon barrel 7 close to the firing end, the cannon barrel 7 penetrates through the simulated barrel 6, and the bosses 701 are in sliding connection with the sliding groove, a semicircular tube 702 is formed on the shaft of the cannon barrel 7 away from the firing end, the inner and outer diameters of the semicircular tube 702 are the same as those of the cannon barrel 7, and the semicircular tube 702 is processed with a certain arc, and the cannon barrel 7 is arranged in the first loading slot 26.

[0021] The left and right ends of the barrel assembly 5 are connected with the upper cover 4.

[0022] Please refer to Figures 8-13 A buffer assembly is in sliding connection with the inside of the buffer groove 25, the buffer assembly comprises a buffer box 8, a second loading slot 24 is formed in the bottom end of the buffer box 8, the outer dimensions of the second loading slot 24 are the same as those of the semicircular tube 702, when the buffer assembly is connected with the barrel assembly 5 (as shown in the figure), the semicircular tube 702 is in sliding connection with the second loading slot 24, and the buffer box 8 is in sliding connection with the buffer groove 25.Figure 4 As shown in the figure, the first loading groove 26 and the second loading groove 24 form a coaxial channel, and the barrel 7 is located inside the channel. After the ammunition and the powder bag are sequentially loaded into the channel, the arc of the semicircular tube 702 can be fitted with the pushing track in the process of being pushed to the barrel 7, so as to effectively reduce the pushing resistance and provide guidance for the ammunition and the powder bag to smoothly enter the barrel 7, thereby further optimizing the filling operation efficiency.

[0023] The inside of the buffer box 8 is symmetrically provided with two groups of second chambers 12, and the second chambers 12 are slidably connected with second isolation plugs 14. The upper and lower ends of the second chambers 12 are symmetrically provided with first chambers 10 and third chambers 11, and are respectively slidably connected with first isolation plugs 13 and third isolation plugs 15. The shafts of each group of isolation plugs are provided with sealing rings (not shown in the figure), and each group of isolation plugs divides the corresponding chamber into two spaces. The first isolation plug 13 and the third isolation plug 15 are connected with fixed rods 16 on the side facing the right. Each group of fixed rods 16 is provided with a sealing ring 17 between each group of chambers. The end of each group of fixed rods 16 away from the buffer box 8 is fixedly connected with the simulated barrel 6. The inside of the buffer box 8 is provided with a liquid passage, and the liquid passage communicates the first chamber 10 and the second chamber 12. The inside of the liquid passage is fixedly provided with a throttling orifice plate 27. The inside of the throttling orifice plate 27 is processed with a plurality of throttling holes. The port of the liquid passage communicating with the second chamber 12 is processed into an arc shape, and the throttling holes close to the port of the second chamber 12 are also processed into an arc shape. In the first chamber 10, the space on the left end of the first isolation plug 13 is filled with high-pressure gas, and the space on the right end of the first isolation plug 13 is filled with hydraulic oil. In the second chamber 12, the space on the left end of the second isolation plug 14 is filled with high-pressure gas, and the space on the right end of the second isolation plug 14 is filled with hydraulic oil. The third chamber 11 is filled with high-pressure gas, and the third isolation plug 15 is provided with a small air flow hole (not shown in the figure) on the top, which communicates the spaces on the left and right of the third isolation plug 15. Since the size of the air flow hole is small, the resistance of air flow in the third chamber 11 is large enough.

[0024] The upper end of the buffer box 8 is provided with a closed groove 9 which penetrates the buffer box 8 and communicates with the second loading groove 24. A baffle assembly is slidably connected in the closed groove 9. The baffle assembly includes a baffle 18. The lower half of the baffle 18 is processed into a semicircle shape with a diameter same as the inner diameter of the semicircular tube 702. A fixing seat 19 is mounted on the upper end of the buffer box 8. The fixing seat 19 is in the shape of a ring and surrounds the closed groove 9 inside the ring. A recess is formed in the upper end of the fixing seat 19. A rotating plate 20 is arranged above the fixing seat 19 and is slidably connected with the recess of the fixing seat 19. A through hole 21 with the same length and width structure as the baffle 18 is formed in the center of the upper end of the rotating plate 20. A plurality of operating rods 22 are fixedly installed around the through hole 21. A pull rod 23 is arranged on the upper end of the rotating plate 20. The pull rod 23 is in the shape of T. The longitudinal part of the pull rod 23 is connected with the upper end of the baffle 18 through the through hole 21.

[0025] The supplementary explanation based on the above structure is as follows. The operator actuates the operating rod 22. The operating rod 22 drives the rotating plate 20 to rotate until the through hole 21 is aligned with the closed groove 9. The operator pulls the transverse part of the pull rod 23 to move the longitudinal part of the pull rod 23 upward along the through hole 21, thereby driving the baffle 18 to move upward along the closed groove 9. The structure of the upper half of the baffle 18 passes through the through hole 21, so that the cannon barrel 7 is not blocked. When the operator pushes the transverse part of the pull rod 23 to move downward, the baffle 18 moves downward. The semicircular lower half of the baffle 18 is attached to the semicircular tube 702, so that the cannon barrel 7 is closed (as shown in FIG. 8). Figure 7 Further, the operator actuates the operating rod 22 to misalign the through hole 21 with the closed groove 9. At this time, the rotating plate 20 limits the upward movement of the baffle 18. The rotating plate 20 limits the baffle 18. When the ammunition is fired, the baffle 18 blocks the cannon barrel 7, thereby reducing the energy leakage and providing protection for the operator. Further, when the operator pulls the pull rod 23 to move upward, the baffle 18 moves upward synchronously. At this time, the cannon barrel 7 is not blocked, which is convenient for loading ammunition and gunpowder.

[0026] In the second embodiment, multiple operators enter the inside of the upper cover 4 and reach their respective responsible positions. Further, the operators perform function state detection on the respective managed equipment, confirm whether the equipment is normally operated, and confirm that the equipment is normally operated. The operator serving as the gun captain observes the firing target and issues instructions to the gunner and the loader.

[0027] Further, the operator pulls the lever 22, pulls the pull rod 23, and drives the baffle 18 away from the semicircular tube 702, so that the barrel 7 is penetrated, and the loader sequentially loads the ammunition and the powder pack into the first loading slot 26 and the second loading slot 24 to form a coaxial channel. After loading, the baffle 18 is lowered to isolate the ammunition and the powder pack from the operator. The gunner controls the barrel assembly 5 to aim at the target according to the commander's instruction. After aiming, the commander performs the shooting operation; Further, during shooting, the powder pack is detonated to launch the ammunition. When the powder pack explodes, a huge recoil force is generated in the barrel 7. The recoil force drives the baffle 18 to move away from the simulated barrel 6. The baffle 18 drives the buffer box 8 to move synchronously. Since the fixed rod 16 is fixedly connected with the simulated barrel 6, the fixed rod 16, the first isolation plug 13, and the third isolation plug 15 remain relatively stationary; During the action of the recoil force, with the buffer box 8 as a fixed reference, the first isolation plug 13 and the third isolation plug 15 move along the corresponding chamber inner wall towards the simulated barrel 6. In the first chamber 10, the first isolation plug 13 extrudes the right end space, so that the hydraulic oil in the right end space flows into the second chamber 12 through the throttle orifice plate 27. The hydraulic oil flowing into the second chamber 12 drives the second isolation plug 14 to move away from the simulated barrel 6, extruding the high-pressure gas in the left end space of the second isolation plug 14. At the same time, in the third chamber 11, the third isolation plug 15 moves towards the simulated barrel 6, extruding the high-pressure gas in the right end space of the third isolation plug 15. The gas flows into the left end space through the tiny gas flow hole and generates resistance; During the above movement, the viscosity of the hydraulic oil and the air resistance in the third chamber 11 realize the buffering of the recoil force. The throttle orifice plate 27 further reduces the flowability of the hydraulic oil, thereby increasing the buffering effect.

[0028] In the third embodiment, since the second isolation plug 14 is a closed structure, when the recoil force subsides, the high-pressure gas in the left end space of the second isolation plug 14 rapidly drives the second isolation plug 14 to move towards the simulated barrel 6, so that the hydraulic oil returns to the right end space of the first isolation plug 13 through the throttle orifice plate 27. Since the first isolation plug 13 is fixed through the fixed rod 16, the hydraulic oil returning to the right end space of the first isolation plug 13 extrudes the sealing ring 17, thereby driving the buffer box 8 to move towards the barrel, and resetting the buffer assembly.

[0029] Further, during the resetting process, the hydraulic oil buffers the thrust of the high-pressure gas, avoiding collision damage to the buffer assembly due to the large thrust during resetting. Since the reaction force during ammunition launching is much larger than the thrust of the high-pressure gas, the liquid channel and the arc-shaped port of the throttle orifice plate 27 reduce the resistance of the hydraulic oil when returning to the first chamber 10, so that the buffer assembly is more easily reset.

[0030] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Finally, it should be noted that the above-mentioned only constitutes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will still be able to modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A recoil buffer device for a howitzer, comprising a base (1), a numerical control module, and a buffer assembly, characterized in that: The buffer assembly includes a buffer box (8), the bottom of which is provided with a second loading slot (24). The buffer box (8) is symmetrically provided with two sets of second chambers (12). A second isolation plug (14) is slidably connected inside the second chamber (12). A first chamber (10) and a third chamber (11) are symmetrically provided at the upper and lower ends of the second chamber (12), and a first isolation plug (13) and a third isolation plug (15) are slidably connected inside them respectively. A sealing ring is installed on the shaft of each set of isolation plugs. Each set of isolation plugs divides the corresponding chamber into two spaces. The first isolation plug (13) and the third isolation plug (15) are both connected to a fixing rod (16) on the right side. Each group of fixing rods (16) is connected to a sealing ring (17) between each group of chambers. The buffer box (8) has a liquid channel inside. The liquid channel connects the first chamber (10) and the second chamber (12). A throttling orifice plate (27) is fixedly installed inside the liquid channel. The throttling orifice plate (27) has several throttling holes inside. The port of the liquid channel that connects to the second chamber (12) is processed into an arc shape. The port of the throttling orifice near the second chamber (12) is also processed into an arc shape.

2. The recoil buffer device for a howitzer according to claim 1, characterized in that: In the first chamber (10), the space at the left end of the first isolation plug (13) is filled with high-pressure gas, and the space at the right end of the first isolation plug (13) is filled with hydraulic oil. In the second chamber (12), the space at the left end of the second isolation plug (14) is filled with high-pressure gas, and the space at the right end of the second isolation plug (14) is filled with hydraulic oil. The third chamber (11) is filled with high-pressure gas. The third isolation plug (15) has tiny airflow holes that connect the spaces on the left and right sides of the third isolation plug (15).

3. The recoil buffer device for a howitzer according to claim 2, characterized in that: The base (1) has a base plate (2) installed inside. The upper end of the base plate (2) is connected to an upper plate (3). The upper end of the upper plate (3) is connected to an upper cover (4). An installation window is provided in front of the upper cover (4).

4. A recoil buffer device for a howitzer according to claim 3, characterized in that: The upper end of the upper plate (3) is equipped with a gun body assembly (5). The gun body assembly (5) is located in the installation window of the upper cover (4). The gun body assembly (5) includes a simulated gun body (6) and a gun barrel (7). Both the left and right ends of the gun body assembly (5) are connected to the upper cover (4).

5. A recoil buffer device for a howitzer according to claim 4, characterized in that: The simulated gun barrel (6) has a sliding groove inside, and a buffer groove (25) is provided at the rear end of the simulated gun barrel (6). A first loading groove (26) is provided at the bottom of the buffer groove (25). The inner diameter of the first loading groove (26) is the same as the outer diameter of the gun barrel (7).

6. A recoil buffer device for a howitzer according to claim 5, characterized in that: The gun barrel (7) has symmetrical bosses (701) mounted on the shaft near the firing end. The gun barrel (7) passes through the simulated gun barrel (6), and the bosses (701) are slidably connected to the groove. A section of the shaft away from the firing end of the gun barrel (7) is machined into a semi-circular tube (702). The inner and outer diameters of the semi-circular tube (702) are the same as those of the gun barrel (7), and it is machined with a certain curvature. The gun barrel (7) is located inside the first loading groove (26).

7. A recoil buffer device for a howitzer according to claim 6, characterized in that: The second loading slot (24) has the same external dimensions as the semi-circular tube (702). When the buffer assembly is connected to the gun body assembly (5), the first loading slot (26) and the second loading slot (24) form a coaxial channel, and the gun barrel (7) is located inside the channel.

8. A recoil buffer device for a howitzer according to claim 7, characterized in that: The buffer assembly is slidably connected inside the buffer groove (25), and the end of each set of fixed rods (16) away from the buffer box (8) is fixedly connected to the simulated gun body (6).

9. A recoil buffer device for a howitzer according to claim 8, characterized in that: The upper end of the buffer box (8) is provided with a closed groove (9), which passes through the buffer box (8) and communicates with the second loading groove (24). A baffle assembly is slidably connected inside the closed groove (9). The baffle assembly includes a baffle (18), the lower half of which is processed into a semi-circular shape with the same diameter as the inner diameter of the semi-circular tube (702).

10. A recoil buffer device for a howitzer according to claim 9, characterized in that: The upper end of the buffer box (8) is equipped with a fixed seat (19). The fixed seat (19) is circular in shape and surrounds the closed groove (9) inside the ring. The upper end of the fixed seat (19) is provided with a groove. A rotating plate (20) is provided above the fixed seat (19). The rotating plate (20) is slidably connected to the groove of the fixed seat (19). The upper center of the rotating plate (20) is provided with a through hole (21) with the same length and width structure as the baffle (18). Several operating levers (22) are fixedly installed around the through hole (21). A pull rod (23) is provided at the upper end of the rotating plate (20). The pull rod (23) is T-shaped. The longitudinal part of the pull rod (23) passes through the through hole (21) and connects to the upper end of the baffle (18).

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