A static explosion velocity field measuring device with a fragment filtering function

Abstract

The utility model provides a static explosion speed field measuring device with the function of fragment filtering, including the speed measurement wood target frame, the positive side of speed measurement wood target frame is connected fixed with filter plate through the connecting mechanism, is equipped with two groups of tin foil paper in the speed measurement wood target frame, the end of tin foil paper is equipped with the wood strip far from the speed measurement wood target frame side, the wood strip, tin foil paper and the speed measurement wood target frame three are through G word clamp clamping fixed between. The utility model has the beneficial effect that, through the design of filter plate and two groups of tin foil paper, the accuracy of the measured fragment speed can be ensured, most of the fragments can be filtered out through the filter hole on the filter plate, the fragments passing through the tin foil paper are one, the tin foil paper is arranged in two groups, the distance is S, when the fragments pass through two groups of tin foil 3, the on-off timer will record the time difference t of the fragments passing through the tin foil paper, through the calculation, the distance S is divided by the time t, and the speed v of the fragments can be calculated.

Description

Technical Field

[0001] This utility model is a static explosion velocity field measuring device with fragment filtering function, belonging to the field of fragment velocity measurement technology. Background Technology

[0002] In the development of integrated pre-fragmented projectiles, it is necessary to investigate the velocity level of the fragments from the integrated pre-fragmented projectile's damage source when they penetrate the target plate, and to evaluate the destructive power of the fragments. To complete this investigation, it is necessary to measure the velocity of the damage source fragments.

[0003] Because the fragments are unevenly distributed and move at high speeds during static explosions, it is difficult to accurately measure the fragment velocity using the company's existing velocity measuring devices. Currently, accurately measuring the fragment velocity generated during static explosions is a challenge.

[0004] Therefore, in order to accurately measure the fragment velocity generated during a static explosion, a static explosion velocity field measuring device with fragment filtering function is provided. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a static explosion velocity field measuring device with fragment filtering function.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A static explosion velocity field measuring device with fragment filtering function includes a velocity measuring wooden target frame. One side of the front of the velocity measuring wooden target frame is connected and fixed to a filter plate through a connecting mechanism. Two sets of tin foil are provided inside the velocity measuring wooden target frame. A wooden strip is provided on the end of the tin foil away from the velocity measuring wooden target frame. The wooden strip, the tin foil and the velocity measuring wooden target frame are clamped and fixed together by G-clamps.

[0007] Furthermore, the connecting mechanism includes a movable frame and a fixed frame, the movable frame being located above the fixed frame, and a set of top fixing blocks and a set of bottom fixing blocks being fixed to one side of the back of both the fixed frame and the movable frame.

[0008] Furthermore, each of the two bottom fixing blocks has a fixed support arm fixed on one side opposite to the other. The end of the fixed support arm is connected and fixed to the outer surface of the speed measuring wooden target frame by screws. Each of the two top fixing blocks has a movable support arm fixed on one side opposite to the other. The movable support arm is connected and fixed to the slider in the slide rail by screws. The slide rail is fixedly installed on the outer side surface of the speed measuring wooden target frame. The vertical top fixing block and the bottom fixing block are connected and fixed by a locking assembly.

[0009] Furthermore, both the movable frame and the fixed frame have slots on their inner walls, which are adapted to the filter plate.

[0010] Furthermore, the locking assembly includes a snap-fit ​​groove formed on the outer surface of the opposite side of the top fixing block and the bottom fixing block, and a top snap-fit ​​arm and a bottom snap-fit ​​arm respectively snap-fit ​​into the upper and lower snap-fit ​​grooves. The top snap-fit ​​arm and the bottom snap-fit ​​arm are respectively provided with a plug-in groove and a plug-in plate on their opposite sides.

[0011] Furthermore, the plug plate is inserted into the plug slot, and the screw holes on the top snap-fit ​​arm and the bottom snap-fit ​​arm are mated and adapted. The screw holes are connected and fixed to the outer surfaces of the top fixing block and the bottom fixing block respectively by screws.

[0012] Furthermore, the top fixing block and the bottom fixing block are respectively provided with a docking block and a docking groove on opposite sides, and the docking groove and the docking block are snap-fitted together.

[0013] Furthermore, the filter plate has filter holes.

[0014] The beneficial effects of this utility model are: Through the design of the connecting mechanism, the filter plate can be fixed in place by a connecting frame consisting of a vertically movable frame and a stationary fixed frame when it is installed or replaced, thus achieving quick snap-fit ​​of the filter plate.

[0015] Through the design of the locking components, when connecting and fixing the moving frame and the fixed frame, the top snap-fit ​​arm and the bottom snap-fit ​​arm can be snapped into the snap-fit ​​grooves on the top outer surface of the top fixed block and the bottom outer surface of the bottom fixed block from the top and bottom sides, respectively. During the docking process, the plug plate at the top of the bottom snap-fit ​​arm will be inserted into the plug groove at the bottom of the top snap-fit ​​arm. At this time, the screw holes on the top snap-fit ​​arm and the bottom snap-fit ​​arm are aligned. Then, the screws are passed through the screw holes and connected to the top fixed block and the bottom fixed block, forming a stable connection. This makes the moving frame, the fixed frame, and the filter plate form an integrated structure, which is convenient for testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a static explosion velocity field measuring device with fragment filtering function according to the present invention. Figure 2This is a schematic diagram of the wooden target frame structure of a static explosion velocity field measuring device with fragment filtering function according to this utility model; Figure 3 This is a schematic diagram of the connection mechanism of a static explosion velocity field measuring device with fragment filtering function according to this utility model; Figure 4 This is a schematic diagram of the locking assembly structure of a static explosion velocity field measuring device with fragment filtering function according to this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the locking assembly structure of a static explosion velocity field measuring device with fragment filtering function according to this utility model. Figure 2 .

[0018] In the diagram, 1. Filter plate; 2. Speed ​​measuring wooden target frame; 3. Aluminum foil; 4. Wooden strip; 5. G-clamp; 6. Slide rail; 7. Moving frame; 8. Fixed frame; 9. Fixed support arm; 10. Moving support arm; 11. Top fixing block; 12. Bottom fixing block; 13. Connecting block; 14. Connecting groove; 15. Snap-fit ​​groove; 16. Top snap-fit ​​arm; 17. Bottom snap-fit ​​arm; 18. Insertion plate; 19. Screw hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 This utility model provides a technical solution for a static explosion velocity field measuring device with fragment filtering function, including a velocity measuring wooden target frame 2. The front side of the velocity measuring wooden target frame 2 is connected and fixed to a filter plate 1 through a connecting mechanism. Two sets of tin foil 3 are provided inside the velocity measuring wooden target frame 2. A wooden strip 4 is provided on the end of the tin foil 3 away from the velocity measuring wooden target frame 2. The wooden strip 4, the tin foil 3 and the velocity measuring wooden target frame 2 are clamped and fixed together by G-clamps 5. The filter plate 1 has filter holes. The size of the filter holes is determined by the density of fragments generated by the static explosion, which can effectively filter out most of the fragments, so that only one fragment passes through the tin foil 3. This makes the measured fragment velocity more accurate. Two sets of tin foil 3 are arranged with a distance S between them. When the fragment passes through the two sets of tin foil 3, the on / off timer records the time difference t of the fragment passing through the tin foil. By calculating, the velocity v of the fragment can be calculated by dividing the distance S by the time t.

[0021] See Figures 2-3The connecting mechanism includes a movable frame 7 and a fixed frame 8. The movable frame 7 is located above the fixed frame 8. A set of top fixing blocks 11 and a set of bottom fixing blocks 12 are fixed to one side of the back of both the fixed frame 8 and the movable frame 7. A fixed support arm 9 is fixed to one side of each of the two bottom fixing blocks 12. The end of the fixed support arm 9 is connected and fixed to the outer surface of the speed measuring wooden target frame 2 by screws. A movable support arm 10 is fixed to one side of each of the two top fixing blocks 11. The movable support arm 10 is connected to the slide rail 6 by screws. The slider inside is fixed, and the slide rail 6 is fixedly installed on the outer side surface of the speed measuring wooden target frame 2. The vertical top fixing block 11 and the bottom fixing block 12 are connected and fixed by a locking assembly. The inner walls of both the moving frame 7 and the fixed frame 8 are provided with slots, which are adapted to the filter plate 1. Through the design of the connecting mechanism, when the filter plate 1 is installed or replaced, it can be fixed by the connecting frame composed of the vertically movable moving frame 7 and the fixed frame 8, so as to realize the quick snap-fit ​​of the filter plate 1.

[0022] See Figures 3-5 The locking assembly includes snap-fit ​​grooves 15 formed on the outer surfaces of the top fixing block 11 and the bottom fixing block 12 on opposite sides. A top snap-fit ​​arm 16 and a bottom snap-fit ​​arm 17 are respectively snapped into the upper and lower snap-fit ​​grooves 15. Each of the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 has an insertion groove and an insertion plate 18 on opposite sides. The insertion plate 18 is inserted into the insertion groove. Screw holes 19 on the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 are mated and fitted together. The screw holes 19 are connected and fixed to the outer surfaces of the top fixing block 11 and the bottom fixing block 12 by screws. Through the design of the locking assembly, the movement... When the frame 7 and the fixed frame 8 are connected and fixed, the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 can be snapped into the snap-fit ​​grooves 15 on the top outer surface of the top fixed block 11 and the bottom outer surface of the bottom fixed block 12 from the top and bottom sides respectively. During the docking process, the insertion plate 18 on the top of the bottom snap-fit ​​arm 17 will be inserted into the insertion groove at the bottom of the top snap-fit ​​arm 16. At this time, the screw holes 19 on the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 are docked together. Then, the screws are passed through the screw holes 19 and connected to the top fixed block 11 and the bottom fixed block 12 to form a stable connection relationship, so that the moving frame 7, the fixed frame 8 and the filter plate 1 form an integrated structure, which is convenient for testing.

[0023] See Figures 4-5The top fixing block 11 and the bottom fixing block 12 are respectively provided with a docking block 13 and a docking groove 14 on their opposite sides. The docking groove 14 and the docking block 13 are snapped together. Through the design of the docking block 13 and the docking groove 14, the connection stability of the top fixing block 11 and the bottom fixing block 12 can be improved, while the rapid docking of the moving frame 7 and the fixed frame 8 can be achieved.

[0024] When installing or replacing the filter plate 1, the movable frame 7 can be pushed vertically upward on the slide rail 6. Then, the filter plate 1 is inserted into the slot on the fixed frame 8. Subsequently, the movable frame 7 is pushed down so that it is snapped into the top of the filter plate 1. Then, the movable frame 7 and the fixed frame 8 are connected and fixed by the locking assembly. That is, the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 are snapped into the snap-fit ​​grooves 15 on the top outer surface of the top fixed block 11 and the bottom outer surface of the bottom fixed block 12 from the top and bottom sides, respectively. During the docking process, the insertion plate 18 at the top of the bottom snap-fit ​​arm 17 is inserted into the insertion groove at the bottom of the top snap-fit ​​arm 16. At this time, the screw holes 19 on the top snap-fit ​​arm 16 and the bottom snap-fit ​​arm 17 are docked together. Then, the screws are passed through the screw holes 19 and connected to the top fixed block 11 and the bottom fixed block 12 to form a stable connection. This makes the movable frame 7, the fixed frame 8 and the filter plate 1 form an integrated structure, which is convenient for testing.

[0025] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A static explosion velocity field measuring device with fragment filtering function, characterized in that, The device includes a speed measuring wooden target frame (2), one side of which is connected and fixed to a filter plate (1) via a connecting mechanism. The speed measuring wooden target frame (2) contains two sets of tin foil (3), and the end of the tin foil (3) is provided with a wooden strip (4) on the side away from the speed measuring wooden target frame (2). The wooden strip (4), the tin foil (3), and the speed measuring wooden target frame (2) are clamped and fixed together by a G-clamp (5).

2. The static explosion velocity field measuring device with fragment filtering function according to claim 1, characterized in that, The connecting mechanism includes a movable frame (7) and a fixed frame (8). The movable frame (7) is located above the fixed frame (8). A set of top fixing blocks (11) and a set of bottom fixing blocks (12) are fixed on one side of the back of both the fixed frame (8) and the movable frame (7).

3. The static explosion velocity field measuring device with fragment filtering function according to claim 2, characterized in that, Two bottom fixing blocks (12) are respectively fixed with a fixed support arm (9) on opposite sides. The end of the fixed support arm (9) is connected and fixed to the outer surface of the speed measuring wooden target frame (2) by screws. Two top fixing blocks (11) are respectively fixed with a movable support arm (10) on opposite sides. The movable support arm (10) is connected and fixed to the slider in the slide rail (6) by screws. The slide rail (6) is fixedly installed on the outer side surface of the speed measuring wooden target frame (2). The vertical top fixing block (11) and the bottom fixing block (12) are connected and fixed by a locking assembly.

4. A static explosion velocity field measuring device with fragment filtering function according to claim 3, characterized in that, Both the movable frame (7) and the fixed frame (8) have slots on their inner walls, which are adapted to the filter plate (1).

5. A static explosion velocity field measuring device with fragment filtering function according to claim 4, characterized in that, The locking assembly includes a snap-fit ​​groove (15) formed on the outer surface of the opposite side of the top fixing block (11) and the bottom fixing block (12). A top snap-fit ​​arm (16) and a bottom snap-fit ​​arm (17) are respectively snapped into the upper and lower snap-fit ​​grooves (15). The top snap-fit ​​arm (16) and the bottom snap-fit ​​arm (17) are respectively provided with a plug-in groove and a plug-in plate (18) on opposite sides.

6. A static explosion velocity field measuring device with fragment filtering function according to claim 5, characterized in that, The plug plate (18) is inserted into the plug slot. The screw holes (19) on the top snap-fit ​​arm (16) and the bottom snap-fit ​​arm (17) are mated and adapted. The screw holes (19) are connected and fixed to the outer surfaces of the top fixing block (11) and the bottom fixing block (12) respectively by screws.

7. A static explosion velocity field measuring device with fragment filtering function according to claim 6, characterized in that, The top fixing block (11) and the bottom fixing block (12) are respectively provided with a docking block (13) and a docking groove (14) on opposite sides, and the docking groove (14) and the docking block (13) are snapped together.

8. A static explosion velocity field measuring device with fragment filtering function according to claim 7, characterized in that, The filter plate (1) has filter holes.

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