Friction buffering device of weapon launching carrier

Abstract

The invention discloses a friction buffering device of a weapon launching carrier. A servo motor is arranged on a motor fixing frame and provided with a lead screw shaft with a lead screw shaft sleeve, a friction plate fixing plate is arranged at the bottom of the lead screw shaft sleeve, and a limiting friction plate is arranged at the bottom of the friction plate fixing plate; the bottom of the friction buffer mechanism plate is slidably connected with an equipment fixing plate; a friction plate is arranged in the equipment fixing plate; two spring shaft fixing blocks are arranged at the two ends of one side of the friction buffering mechanism plate, and a reset spring guide rod with a reset spring is arranged between the two spring shaft fixing blocks. A spring stop block penetrating through the return spring guide rod is arranged at one end of the equipment fixing plate close to one side of the return spring; one end of the reset spring abuts against the spring stop block, and the other end of the reset spring abuts against the spring shaft fixing block away from the spring stop block. A bottom plate of the motor fixing frame is fixed to the friction buffering mechanism plate. The uniform and stable buffering effect is achieved through mutual conversion between pressure and friction force, kinetic energy generated by weapon launching is rapidly converted into internal energy, and the problems existing in a spring buffer are effectively solved.

Description

Technical Field

[0001] This invention relates to a friction buffer device for a weapon launching vehicle, belonging to the field of light weapons technology. Background Technology

[0002] With the continuous development and increasing maturity of artificial intelligence, new types of robotic mobile devices are beginning to enter traditional weapon launching platforms and systems, especially in the field of small arms, where automated robotic launching platforms are being widely used in many weapon systems. In the application of these new platforms, the cushioning and damping of recoil generated during weapon (gun) firing is a new problem that urgently needs to be solved. Effective cushioning and damping measures can significantly ensure the reliability of the system platform.

[0003] Traditional shock absorption and buffering devices are mostly springs, rubber pads, and hydraulic systems. Each of these has its own shortcomings and defects in achieving a buffering effect. For example, springs and rubber pads utilize deformation to eliminate kinetic energy, but as they absorb kinetic energy, their own potential energy gradually increases, causing the buffering effect to gradually decrease. Specifically, in a spring-type buffer, as the spring absorbs kinetic energy, its length continuously shortens, while the accumulated potential energy increases simultaneously, creating peaks and troughs in the stress curve. This is not conducive to uniform absorption of buffering force, making it impossible to achieve a uniform buffering effect and ensuring the continuous stability of the firing platform. Furthermore, the buffering force of a spring is fixed, limiting the platform's compatibility with different weapons. Rubber pad buffers have relatively small deformation, and similarly cannot achieve uniform buffering for long-stroke, long-distance mechanisms. While hydraulic damping devices can achieve uniform buffering, they are large in size, complex in structure, have many mechanisms, and a long cycle time, making them unsuitable for high-speed, high-frequency light weapon launching platforms. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a friction buffer device for a weapon launching vehicle. This device utilizes the mutual conversion between pressure and friction to form a uniform and stable buffering effect, quickly converting the kinetic energy generated by weapon launch into internal energy. This overcomes the limitations and deficiencies of the original buffering and shock absorption methods, and effectively solves the problems of spring buffers.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a friction buffer device for a weapon launching vehicle, comprising a friction component device and a vehicle platform component device, wherein the friction component device is fixedly installed above the vehicle platform component device.

[0006] Furthermore, the friction assembly includes a motor mounting bracket, a servo motor, a lead screw shaft, a lead screw bushing, a friction plate fixing plate, a limiting friction plate, and guide post sleeves. The motor mounting bracket is U-shaped and hollow inside. A servo motor with its drive end facing downwards is fixedly installed at the top center of the motor mounting bracket. A vertically oriented lead screw shaft is fixedly installed at the drive end of the servo motor. A lead screw bushing is meshed on the lead screw shaft. The lead screw bushing is a circular boss-shaped protrusion with its protruding part facing upwards. A horizontally oriented friction plate fixing plate is fixedly installed at the bottom of the lead screw bushing. A rectangular limiting friction plate is fixedly installed at the bottom center of the friction plate fixing plate. On both sides of the lead screw shaft, two guide posts are installed in the friction plate fixing plate. A copper sleeve is fitted between the guide post and the friction plate fixing plate. The copper sleeve is fixed in the friction plate fixing plate, and the guide post fits in the copper sleeve and can slide in the copper sleeve. A guide post sleeve is fixedly connected to both sides inside the motor mounting bracket. The guide post sleeve is fixedly connected to the upper end of the corresponding guide post on each side.

[0007] Furthermore, the vehicle platform component includes a friction buffer mechanism plate, guide rails, sliders, friction plates, an equipment fixing plate, a return spring guide rod, a return spring, a spring stop, a clamping block, and a center block. The friction buffer mechanism plate is a rectangular plate with a rectangular hole near its center. Two spaced guide rails are fixed along the length of the bottom of the friction buffer mechanism plate, and a rectangular equipment fixing plate is installed at the bottom of the two guide rails. Several evenly spaced sliders are fixed along the length of both sides of the top of the equipment fixing plate, and each slider is slidably connected to the guide rail on its respective side. A friction plate is fixed in the equipment fixing plate on the side closest to the friction buffer mechanism plate. Two spaced center blocks are fixed at the center line of the bottom of the equipment fixing plate, and a clamping block is connected to each side of the center block by a screw. A spring is installed on the screw rod between the clamping block and the center block.

[0008] On one side of the friction buffer mechanism plate along its length, two spring shaft fixing blocks are fixed at both ends of this side. A return spring guide rod is fixed between the two spring shaft fixing blocks, and a return spring is fitted on the return spring guide rod. On the side closer to the return spring, a spring stop is fixed at one end of the equipment fixing plate along its length. The spring stop passes through the return spring guide rod, with one end of the return spring abutting against the spring stop and the other end abutting against the spring shaft fixing block away from the spring stop. The base plates on both sides of the motor mounting bracket are fixedly connected to the friction buffer mechanism plate with bolts, thus fixing the friction assembly device to the vehicle platform assembly device.

[0009] Furthermore, the guide rails are positioned on both sides of the rectangular hole's width direction, and the guide rails do not interfere with the rectangular hole.

[0010] Furthermore, on both sides of the rectangular hole, the friction buffer mechanism plate is provided with several evenly arranged weight-reducing holes.

[0011] Furthermore, two spaced limiting blocks are fixed on both sides of the bottom of the friction buffer mechanism plate along its length. Each limiting block is fixedly connected to a rubber buffer block. The rubber buffer blocks on both sides face each other and are both facing the equipment fixing plate.

[0012] Furthermore, a rectangular groove I is provided at the center of the bottom of the friction plate fixing plate, which restricts the friction plate to fit into the rectangular groove I and is fixedly connected by bolts.

[0013] Furthermore, between the sliders on both sides, a rectangular groove II is provided in the top of the mounting plate, and the friction plate is fitted into the rectangular groove II and fixed by bolts.

[0014] Furthermore, the position of the rectangular hole corresponds to that of the friction plate fixing plate.

[0015] Furthermore, a notch is provided at the bottom of both sides of the motor mounting bracket in the width direction, and the two ends of the friction plate mounting plate are flush with the notch.

[0016] The beneficial effects of this invention are as follows: Based on the principles of physics and mechanics, this invention utilizes the mutual conversion between pressure and friction to form a uniform and stable buffering effect, rapidly converting the kinetic energy generated by weapon firing into internal energy (manifested as an increase in temperature), thus overcoming the limitations and deficiencies of the original buffering and shock absorption methods. This friction buffering device controls the friction force by controlling the clamping force between the friction plates, and ultimately achieves energy consumption through the movement of the relative distance between the two friction plates, thereby achieving the effect of buffering and shock absorption. The buffering principle of this device is to uniformly reduce the recoil energy of the firing motion through frictional movement, changing the traditional principle of converting kinetic and potential energy, and eliminating the continuously increasing reaction force during the conversion of kinetic energy into potential energy. This device has been applied to the FWR anti-drone system and has shown good performance. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 yes Figure 1 A bottom-view diagram.

[0020] Figure 3 This is a schematic diagram of the clamping block and the center block of the present invention.

[0021] Figure 4 This is a schematic diagram of the vehicle platform component device of the present invention when the equipment fixing plate is removed.

[0022] Figure 5This is a schematic diagram of the vehicle platform component device of the present invention with the friction buffer mechanism plate and friction pad removed.

[0023] Figure 6 This is a top view of the vehicle platform component device of the present invention.

[0024] Figure 7 yes Figure 6 A-A direction diagram.

[0025] Figure 8 This is a schematic diagram of the friction assembly device of the present invention.

[0026] Figure 9 yes Figure 8 A bottom-view diagram.

[0027] Figure 10 This is a cross-sectional schematic diagram of the friction assembly device of the present invention.

[0028] Figure 11 This is a schematic diagram of the friction assembly device of the present invention when the motor mounting bracket is removed.

[0029] Figure 12 This is a schematic diagram of the friction assembly device of the present invention with the motor mounting bracket and the limiting friction plate removed.

[0030] Numbering on the map: 1. Friction assembly device; 2. Carrier platform assembly device; 3. Motor mounting bracket; 301. Notch; 4. Servo motor; 5. Lead screw shaft; 6. Lead screw shaft sleeve; 7. Friction plate fixing plate; 701. Rectangular groove I; 8. Limiting friction plate; 9. Guide post; 10. Guide post sleeve; 11. Friction buffer mechanism plate; 1101. Rectangular hole; 1102. Weight reduction hole; 12. Guide rail; 13. Slider; 14. Friction plate; 15. Equipment fixing plate; 1501. Rectangular groove II; 16. Spring shaft fixing block; 17. Return spring guide rod; 18. Return spring; 19. Limiting block; 20. Rubber buffer block; 21. Spring stop block; 22. Clamping block; 23. Center block; 24. Spring; 25. Copper sleeve. Detailed Implementation

[0031] like Figure 1As shown in Figure 12, a friction buffer device for a weapon launching vehicle includes a friction assembly 1 and a vehicle platform assembly 2. The friction assembly 1 is fixedly installed above the vehicle platform assembly 2. The friction assembly 1 includes a motor mounting bracket 3, a servo motor 4, a lead screw shaft 5, a lead screw bushing 6, a friction plate fixing plate 7, a limiting friction plate 8, and a guide post sleeve 10. The motor mounting bracket 3 is U-shaped and hollow inside. A servo motor 4 with its driving end facing downward is fixedly installed at the top center of the motor mounting bracket 3. A vertically oriented lead screw shaft 5 is fixedly installed at the driving end of the servo motor 3. The lead screw shaft 5 is located inside the motor mounting bracket 3, and a lead screw bushing 6 is meshed on the lead screw shaft 5. The lead screw bushing 6 is a circular boss-shaped protrusion with its protruding part facing upward. A horizontally oriented friction plate fixing plate 7 is fixedly installed at the bottom of the lead screw bushing 6, and a rectangular limiting friction plate 8 is fixedly installed at the bottom center of the friction plate fixing plate 7. Two guide posts 9 are provided in the friction plate fixing plate 7 on both sides of the lead screw shaft 5. The guide posts 9 are connected to the friction plate fixing plate 7. A copper sleeve 25 is fitted between them; the copper sleeve 25 is fixed in the friction plate fixing plate 7, and the guide post 9 is fitted in the copper sleeve 25 and can slide in the copper sleeve 25; a guide post sleeve 10 is fixedly connected to both sides inside the motor fixing bracket 3, and the guide post sleeve 10 is fixedly connected to the upper end of the corresponding guide post 9 on each side; a rectangular groove I 701 is provided at the bottom center of the friction plate fixing plate 7, which restricts the friction plate 8 to fit in the rectangular groove I 701 and is fixedly connected by bolts.

[0032] The vehicle platform component 2 includes a friction buffer mechanism plate 11, guide rails 12, sliders 13, friction plates 14, equipment fixing plates 15, return spring guide rods 17, return springs 18, spring stops 21, clamping blocks 22, and a center block 23. The friction buffer mechanism plate 11 is a rectangular plate. A rectangular hole 1101 is provided near the center of the friction buffer mechanism plate 11, and the position of the rectangular hole 1101 corresponds to the position of the friction plate fixing plate 7. Two guide rails 12 are fixed at intervals along the length of the bottom of the friction buffer mechanism plate 11. The guide rails 12 are located on both sides of the width of the rectangular hole 1101. The guide rails 12 do not interfere with the rectangular hole 1101. A rectangular equipment fixing plate 15 is provided at the bottom of the two guide rails 12. Several evenly spaced sliders 13 are fixed on both sides of the top of the equipment fixing plate 15 along its length. Each slider 13 is slidably connected to the guide rail 12 on its respective side. On the side near the friction buffer mechanism plate 11, a friction plate 14 is fixedly installed in the equipment fixing plate 15. Between the sliders 13 on both sides, a rectangular groove II 1501 is provided in the top of the equipment fixing plate 15. The friction plate 14 is fitted into the rectangular groove II 1501 and fixed by bolts. Two spaced center blocks 23 are fixed at the bottom center line of the equipment fixing plate 15. A clamping block 22 is connected to both sides of the center block 23 by a screw thread. A spring 24 is installed on the screw thread between the clamping block 22 and the center block 23.

[0033] On one side of the friction buffer mechanism plate 11 along its length, two spring shaft fixing blocks 16 are fixed at both ends of this side. A return spring guide rod 17 is fixed between the two spring shaft fixing blocks 16, and a return spring 18 is sleeved on the return spring guide rod 17. On the side closer to the return spring 18, a spring stop block 21 is fixed at one end of the equipment fixing plate 15 along its length. The spring stop block 21 passes through the return spring guide rod 17, one end of the return spring 18 abuts against the spring stop block 21, and the other end of the return spring 18 abuts against the spring shaft fixing block 16 away from the spring stop block 21. The base plates on both sides of the motor mounting bracket 3 are fixedly connected to the friction buffer mechanism plate 11 by bolts, thereby fixing the friction assembly device 1 to the vehicle platform assembly device 2.

[0034] On both sides of the rectangular hole 1101, the friction buffer mechanism plate 11 is provided with a number of evenly arranged weight reduction holes 1102; on both sides of the bottom of the friction buffer mechanism plate 11 in the length direction, there are two spaced limit blocks 19 fixedly, and a rubber buffer block 20 is fixedly connected in each limit block 19. The rubber buffer blocks 20 on both sides face each other and are facing the equipment fixing plate 15; on both sides of the motor fixing bracket 3, there is a notch 301 at the bottom in the width direction, and the two ends of the friction plate fixing plate 7 are flush with the notch 301.

[0035] In use, the mounting plate 15 is installed with the Tinni Pica rail in the gun via the bottom center block 22 and clamping block 23. The Tinni Pica rail is located between the clamping blocks 23 on both sides. The screw threaded through the clamping block 23 and threadedly connected to the center block 22, clamping and fixing the Tinni Pica rail in the gun by the screw threaded through and clamping block 23. The output end of the servo motor 4 drives the lead screw shaft 5 to rotate. The lead screw shaft 5 and the lead screw bushing 6 form a lead screw and lead screw nut mechanism. The lead screw shaft 5 drives the lead screw bushing 6 to move the friction plate fixing plate 7 and the limiting friction plate 8 downward under the guidance of the guide post 9 and the copper sleeve 25 in the friction plate fixing plate 7, so that the friction plate fixing plate 7 passes through the friction buffer mechanism plate 1. In section 1, the rectangular hole 1101 is connected to the friction plate 14 in the equipment fixing plate 15 by the limiting friction plate 8, and the limiting friction plate 8 exerts a pressing force on the friction plate 14. The recoil force of the gun being fired will drive the equipment fixing plate 15 to move through the Tinni Pica rail, so that the equipment fixing plate 15 moves under the action of the slider 13 and the guide rail 12, and the pressing force of the limiting friction plate 8 on the friction plate 14 is converted into friction force. The equipment fixing plate 15 will drive the spring stop 21 to compress the return spring 18, thereby forming a friction buffer. After the gun is fired, under the action of the return spring 18, the equipment fixing plate 15 drives the friction plate 14 to reset under the action of the slider 13 and the guide rail 12.

[0036] The guide post 9 fits into the copper sleeve 25 and can slide within the copper sleeve 25. The copper sleeve 25 plays a role in wear resistance and reducing friction, making the movement of the guide post 9 smoother. The weight reduction hole 1102 on the friction buffer mechanism plate 11 effectively reduces the weight of the friction buffer mechanism plate 11. The limit blocks 19 on both sides can effectively limit the stroke of the equipment fixing plate 15. The rubber buffer block 20 can effectively protect the equipment fixing plate 15. The notches 301 at the bottom of both sides of the motor fixing bracket 3 can limit the upward movement of the friction plate fixing plate 7.

[0037] Before firing, the friction buffer device of this weapon launching platform uses a servo motor system to control the torque. Through the mechanical cooperation of the drive screw and nut, the clamping force between the two friction plates is strictly controlled. Then, the recoil force after the gun is fired pushes the relative displacement resistance and distance between the two friction plates, which is a buffer device to counteract the recoil force on the platform. This friction buffer device can counteract the instantaneous recoil force generated during the weapon firing cycle and eliminate the impact of the recoil force on the stability of the weapon platform. By increasing and decreasing the clamping force between the friction plates, the friction force is changed, and the friction plate 14 moves a corresponding distance under the constant friction force, realizing the conversion between kinetic and potential energy, and finally achieving the buffering effect. A prominent advantage of this friction buffer device is that through the precise control of the clamping force, the buffering distance can be adjusted under the constant recoil force. Through the above mechanism, after the friction displacement absorbs the recoil energy generated by the gun firing, the friction plate 8 is quickly depressurized and disengaged under the control of the CNC servo system. The platform component 2 is reset under the action of the return spring 18 to prepare for the next firing. This cycle is repeated to ensure that the weapon launching platform can maintain a stable firing state.

[0038] The friction assembly device 1 and the vehicle platform assembly device 2 absorb the recoil generated by the firing of the gun by limiting the friction force and displacement between the friction plate 8 and the friction plate 14, thereby playing a buffering role.

Claims

1. A friction buffer device for a weapon launching vehicle, characterized in that: It includes a friction assembly device (1) and a vehicle platform assembly device (2), wherein the friction assembly device (1) is fixedly installed above the vehicle platform assembly device (2).

2. The friction buffer device for a weapon launching vehicle according to claim 1, characterized in that: The friction assembly device (1) includes a motor mounting bracket (3), a servo motor (4), a lead screw shaft (5), a lead screw bushing (6), a friction plate fixing plate (7), a limiting friction plate (8), and a guide post sleeve (10). The motor mounting bracket (3) is U-shaped and hollow inside. A servo motor (4) with its driving end facing downward is fixedly installed at the top center of the motor mounting bracket (3). A vertical lead screw shaft (5) is fixedly installed at the driving end of the servo motor (3). A lead screw bushing (6) is meshed on the lead screw shaft (5). The lead screw bushing (6) is a circular boss with the protruding part facing upward. The bottom of the lead screw bushing (6) is fixedly installed. There is a horizontal friction plate fixing plate (7), and a rectangular limiting friction plate (8) is fixedly installed at the bottom center of the friction plate fixing plate (7); on both sides of the lead screw shaft (5), there are two guide posts (9) installed in the friction plate fixing plate (7), and a copper sleeve (25) is fitted between the guide post (9) and the friction plate fixing plate (7); the copper sleeve (25) is fixed in the friction plate fixing plate (7), and the guide post (9) fits in the copper sleeve (25) and can slide in the copper sleeve (25); a guide post sleeve (10) is fixedly connected to both sides inside the motor fixing bracket (3), and the guide post sleeve (10) is fixedly connected to the upper end of the corresponding guide post (9) on each side.

3. The friction buffer device for a weapon launching vehicle according to claim 1, characterized in that: The vehicle platform assembly (2) includes a friction buffer mechanism plate (11), guide rails (12), sliders (13), friction plates (14), equipment fixing plates (15), return spring guide rods (17), return springs (18), spring stops (21), clamping blocks (22), and a center block (23). The friction buffer mechanism plate (11) is a rectangular plate, and a rectangular hole (1101) is provided near the center of the friction buffer mechanism plate (11). Two guide rails (12) are fixed at intervals along the length of the bottom of the friction buffer mechanism plate (11), and a rectangular equipment fixing plate is provided at the bottom of the two guide rails (12). 15); Several evenly spaced sliders (13) are fixed on both sides of the top of the equipment fixing plate (15) along the length direction. Each slider (13) is slidably connected to the guide rail (12) on its respective side. On the side near the friction buffer mechanism plate (11), a friction plate (14) is fixedly installed in the equipment fixing plate (15). Two spaced center blocks (23) are fixed at the bottom center line of the equipment fixing plate (15). A clamping block (22) is connected to both sides of the center block (23) by a screw. A spring (24) is installed on the screw rod of the screw between the clamping block (22) and the center block (23). On one side of the friction buffer mechanism plate (11) along its length, two spring shaft fixing blocks (16) are fixed at both ends of this side; a return spring guide rod (17) is fixed between the two spring shaft fixing blocks (16), and a return spring (18) is sleeved on the return spring guide rod (17); on the side closer to the return spring (18), a spring stop block (21) is fixed at one end of the equipment fixing plate (15) along its length; the spring stop block (21) passes through the return spring guide rod (17), one end of the return spring (18) abuts against the spring stop block (21), and the other end of the return spring (18) abuts against the spring shaft fixing block (16) away from the spring stop block (21); the bottom plates on both sides of the motor fixing frame (3) are fixedly connected to the friction buffer mechanism plate (11) by bolts, so that the friction assembly device (1) and the vehicle platform assembly device (2) are fixed.

4. The friction buffer device for a weapon launching vehicle according to claim 3, characterized in that: The guide rail (12) is located on both sides of the width direction of the rectangular hole (1101), and the guide rail (12) does not interfere with the rectangular hole (1101).

5. The friction buffer device for a weapon launching vehicle according to claim 3, characterized in that: On both sides of the rectangular hole (1101), the friction buffer mechanism plate (11) is provided with a number of uniformly arranged weight reduction holes (1102).

6. The friction buffer device for a weapon launching vehicle according to claim 3, characterized in that: Two spaced limiting blocks (19) are fixed on both sides of the bottom of the friction buffer mechanism plate (11) along the length direction. A rubber buffer block (20) is fixedly connected in each limiting block (19). The rubber buffer blocks (20) on both sides face each other and are facing the equipment fixing plate (15).

7. The friction buffer device for a weapon launching vehicle according to claim 2, characterized in that: A rectangular groove I (701) is provided at the center of the bottom of the friction plate fixing plate (7), which restricts the friction plate (8) to fit into the rectangular groove I (701) and is fixedly connected by bolts.

8. The friction buffer device for a weapon launching vehicle according to claim 3, characterized in that: Between the sliders (13) on both sides, a rectangular groove II (1501) is provided in the top of the mounting plate (15), and the friction plate (14) is connected in the rectangular groove II (1501) and fixed by bolts.

9. A friction buffer device for a weapon launching vehicle according to claim 3, characterized in that: The position of the rectangular hole (1101) corresponds to that of the friction plate fixing plate (7).

10. A friction buffer device for a weapon launching vehicle according to claim 2, characterized in that: The bottom of both sides of the motor mounting bracket (3) in the width direction is provided with a notch (301), and the two ends of the friction plate mounting plate (7) are flush with the notch (301).

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