A device for capturing the trajectory of a post-impact projectile

Abstract

The application discloses a device for capturing the trajectory of a projectile after oblique penetration and jump, wherein the vertical height and the inclination angle of a concrete block on a rack can be adjusted; the trajectory capturing block can be switched between vertical and horizontal assembly states on the rack, and the trajectory capturing block is formed by the interlaced and stacked arrangement of a plurality of aluminum skins and sponges. Compared with the prior art, the device can adjust the height and the angle of the test target according to the actual size of a concrete target, eliminate the influence of the throwing of the concrete fragments after the impact of the projectile on observation, capture the trajectory of the jumping projectile more safely and reliably, and will not cause large-area damage and fracture to cause observation difficulty.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of oblique penetration post-jump projectile trajectory capture device. BACKGROUND

[0002] In actual war, the projectile will have a certain angle of attack and angle of incidence when hitting the target, forming oblique penetration. During oblique penetration, the resistance of the concrete target to the projectile is asymmetric, and the direction of motion of the projectile changes constantly because the penetration resistance is not consistent with the direction of motion. When the direction of motion deviates from the direction of the concrete target, the projectile will fly out of the target surface and jump. From the perspective of attacking the target, it is desirable to avoid jumping, while from the perspective of protection, it is desirable to use jumping to reduce the penetration and explosion damage of the projectile to the target. Therefore, studying the critical jump angle and jump trajectory of the projectile oblique penetration into the concrete target is of great significance to the design of the projectile shape and the structure of the projectile shielding layer. The main function of the oblique penetration post-jump projectile trajectory capture device is to accurately and quickly adjust the angle of the concrete target surface and safely and reliably capture the jump trajectory. The device can eliminate the influence of the observation difficulty caused by the throwing of concrete debris and restore the jump trajectory through the hole in the test target. The existing oblique penetration concrete target method uses a customized concrete target with a tilted target surface or a target frame, which has the following problems:

[0003] The concrete target with a tilted target surface needs to be customized and has a fixed tilt angle, which is not convenient for adjusting the angle during subsequent tests.

[0004] In addition, the existing jump trajectory capture method uses observation of the projectile hole left by the jump projectile on a single layer of wood panel. The throwing of concrete debris caused by penetration can cause large-scale damage and fracture of the wood panel, making observation difficult. Furthermore, there is a lack of research on the capture of the trajectory of the projectile after jumping in oblique penetration research. Therefore, the present application provides a device that can perform oblique penetration tests and capture the jump trajectory of the projectile. SUMMARY

[0005] The present application is to solve the problems existing in the prior art and provides an oblique penetration post-jump projectile trajectory capture device.

[0006] The technical solution adopted by the present application is as follows:

[0007] An oblique penetration post-jump projectile trajectory capture device, comprising

[0008] a frame;

[0009] a concrete block, the vertical height and tilt angle of the concrete block on the frame are adjustable;

[0010] a trajectory capture block, the trajectory capture block can be switched between vertical and horizontal assembly states on the frame, and the trajectory capture block is formed by interlaced and stacked arrangement of several aluminum skins and sponges.

[0011] Further, a lifting frame is slidably connected to the frame, and is driven to lift by a cylinder, and the concrete block is arranged on the lifting frame.

[0012] Further, an angle adjusting mechanism is arranged on the lifting frame, and comprises a fixed base, a first screw rod, a first motor and a driving arm, the fixed base is rotatably connected to the lifting frame, one end of the driving arm is hingedly connected to the fixed base, the other end of the driving arm is slidably connected to the lifting frame, the first screw rod is rotatably connected to the lifting frame, and the first screw rod is threadedly connected to the driving arm, and the first motor drives the first screw rod to rotate.

[0013] Further, the driving arm has a U-shaped structure with one middle side and two side sides, the two side sides of the driving arm are hingedly connected to the fixed base, and the two ends of the middle side are slidably connected to the lifting frame, and the first screw rod is threadedly connected to the middle side.

[0014] Further, the fixed base comprises a bottom beam, a backrest, two fixed plates, two insertion plates and a locking screw rod, the backrest is vertically fixed to the bottom beam, the two fixed plates are symmetrically arranged and slidably connected to the bottom beam along the axial direction of the first screw rod, the locking screw rod is fixed to the fixed plates and horizontally inserted into the backrest, and the two insertion plates are inserted into the two fixed plates along the radial direction of the first screw rod.

[0015] Further, the backrest is provided with two mutually outwardly extending burrs, the locking screw rod is inserted into the burrs, and the fixed plates are slidably arranged on the bottom beam and can be arranged on the outer sides of the two sides of the backrest.

[0016] Further, an adjusting mechanism is arranged on the frame to switch the vertical and horizontal assembly states of the trajectory capturing block on the frame, and the adjusting mechanism comprises a second motor, two second screw rods, two fixed bases, two sliding rails and two sliding blocks, the two second screw rods are vertically arranged on the frame, the second motor drives the two second screw rods to synchronously rotate, nuts are threadedly connected to the two second screw rods, the two sliding rails are horizontally fixed to the frame, the two sliding blocks are slidably connected to the two sliding rails, the two fixed bases are arranged, one end of each of the two fixed bases is hingedly connected to the nuts of the two second screw rods, and the other end of each of the two fixed bases is hingedly connected to the two sliding blocks, and the two ends of the trajectory capturing block are fixed to the two fixed bases.

[0017] Further, a fixed groove is arranged on each of the fixed bases, the trajectory capturing block is inserted into the fixed groove, and a locking bolt is threadedly connected to the outer wall of each of the fixed bases, and the end of the locking bolt extends into the fixed groove and abuts against the trajectory capturing block.

[0018] Further, the second motor drives the two second screw rods to synchronously rotate through a synchronous wheel and a synchronous belt.

[0019] Further, the bottom layer of the trajectory capturing block is an aluminum skin, the top layer is a steel plate, and a layer of target paper is arranged below each layer of sponge.

[0020] The present invention has the following beneficial effects:

[0021] Compared with existing devices, this invention can adjust the height and angle of the test target according to the actual size of the concrete target, eliminate the influence of concrete fragments thrown after the projectile impacts the observation, capture the trajectory of the bouncing projectile more safely and reliably, and avoid large-area damage or breakage that would cause observation difficulties. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the present invention.

[0023] Figure 2 This is a structural diagram of the trajectory capture block.

[0024] Figure 3 This is a diagram showing the installation structure of the concrete blocks.

[0025] Figure 4 This is a structural diagram of the carrier used for installing concrete blocks.

[0026] Figure 5 This is a structural diagram of the adjustment mechanism.

[0027] Figure 6 This is a structural diagram of the adjustment mechanism.

[0028] Figure 7 This is a state structure diagram of the present invention.

[0029] Figure 8 This is a schematic diagram of the experimental structure of the present invention. Detailed Implementation

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 The present invention provides a device for capturing the trajectory of a ricocheting projectile after oblique penetration, comprising a frame 1, a concrete block 2, and a trajectory capturing block 3. The concrete block 2 is mounted on the frame 1, and the vertical height and tilt angle of the concrete block 2 are adjustable. The trajectory capturing block 3 can switch between vertical and horizontal assembly states on the frame 1. The trajectory capturing block 3 is formed by a plurality of aluminum sheets 31 and sponges 32 arranged in an alternating layered manner.

[0032] The trajectory capturing block 3 is arranged in an interlaced and laminated manner by aluminum skin 31 and sponge 32, the thickness of the aluminum skin is 0.2mm, and the thickness of the sponge is 5cm, after the projectile hits the concrete block 2, the broken block will also hit the trajectory capturing block 3, some broken blocks are blocked by the aluminum skin, the broken blocks and the projectile embedded in the trajectory capturing block 3, and the aluminum skin 31 and the sponge 32 can conveniently distinguish whether it is the trajectory of the projectile or the trajectory of the broken block. Compared with the existing wooden board structure test target, the aluminum plate is combined with the sponge, the use is safer, and large-area damage and fracture do not occur, which causes observation difficulty.

[0033] The lifting frame 11 is slidably connected to the rack 1, the lifting frame 11 is driven by the air cylinder 12 and realizes lifting, and the concrete block 2 is arranged on the lifting frame 11. The lifting frame 11 is arranged to facilitate the placement of the concrete block, when the concrete block is placed, the lifting frame 11 is lowered to the lowest, and then the concrete block is manually lifted to the lifting frame, or a forklift or electric hoist is used.

[0034] Combined Figure 3 and Figure 4 , the placement angle of the concrete block 2 on the lifting frame 11 can be freely adjusted to realize multi-angle hitting test, in order to realize the angle adjustment of the concrete block, an angle adjusting mechanism is arranged on the lifting frame 11, the angle adjusting mechanism comprises a fixed seat 41, a first lead screw 42, a first motor 43 and a driving arm 44, one end of the fixed seat 41 is rotatably connected to the lifting frame 11, the driving arm 44 has a U-shaped structure with one middle side and two side sides, the two side sides of the driving arm 44 are hinged to the fixed seat 41, and the two ends of the middle side are slidably connected to the lifting frame 11, the first lead screw 42 is horizontally rotatably connected to the lifting frame 11, and the first lead screw 42 is threadedly connected with the middle side, the first motor 43 drives the first lead screw to rotate, the first lead screw 42 rotates, drives the driving arm 44 to rotate along the hinge point, and drives the fixed seat 41 to rotate along the rotation point, finally realizes the angle adjustment of the fixed seat 41, and the concrete block 2 is fixed on the fixed seat 41.

[0035] Since the projectile directly hits the outer end surface of the concrete block 2, when the concrete block is fixed, the fixed seat 41 cannot cover the outer end surface of the concrete block, and the fixed seat 41 cannot interfere with the installation and disassembly of the concrete block due to the fastening structure, therefore, the fixed seat 41 is specially designed, and the structure comprises a bottom beam 411, a backrest 412, a fixed plate 413, an insertion plate 414 and a locking screw 415.

[0036] The backrest 412 is vertically fixed on the rear side of the bottom beam 411, two fixed plates 413 are symmetrically and vertically arranged, the fixed plates 413 are slidingly connected on the bottom beam 411 along the axial direction of the first screw rod 42, the locking screw rod 415 is horizontally fixed on the fixed plate 413 and is inserted on the backrest 412, and two insertion plates 414 are inserted on the two fixed plates 413 along the radial direction of the first screw rod 42.

[0037] In the fixing of the concrete block, the fixing seat 41 is first placed horizontally through the angle adjusting mechanism (i.e. the bottom beam 411 is in a horizontal state), then the fixed plate 413 is slid backward, so that the fixed plate 413 is placed on the outer side of the backrest 412, at this time, the upper end surface of the bottom beam 411 is a smooth surface without structural interference, the concrete block 2 is carried to the bottom beam 411, after the concrete block is placed, the fixed plate 413 is moved forward, after the fixed plate 413 is moved to a suitable position, the positions of the insertion plates 414 are adjusted in opposite directions, then the nuts on the locking screw rod 415 are tightened, so that the fixed plate 413 is moved backward and the insertion plates 414 are abutted on the concrete block 2, like Figure 3 The structure, so as to realize the fixing of the concrete block. It should be noted that the maximum length of the concrete block 2 is smaller than the gap between the two fixed plates 413, so as to avoid the interference of the concrete block with the sliding of the fixed plate 413.

[0038] By inserting the insertion plates 414 with different lengths, the fixing of the concrete blocks with different lengths can be realized.

[0039] As long as each insertion plate is in contact with the concrete block by 3-5 cm, the concrete block can be effectively fixed, the insertion plate is in contact with the concrete block in a small area, and the concrete block can be well fixed, so as to ensure that the outer end surface of the concrete block is exposed for the impact of the projectile. In addition, when the concrete block is installed, the fixed plate 413 is first moved to the left and right sides of the backrest 412, so that the concrete block is placed on the bottom beam 411, and when the concrete block is disassembled, the insertion plate is pulled outward, and then the fixed plate 413 is moved backward to the left and right sides of the backrest 412, so as to avoid the interference of the fixed plate 413 and the screw rod 415 with the removal of the concrete block.

[0040] In order to move the fixed plate 413 backward and place it on the left and right sides of the backrest 412, two outwardly extending flashings 416 are arranged on the backrest 412, the locking screw rod 415 is inserted on the flashings 416, and the fixed plate 413 is slidingly arranged on the bottom beam 411 and can be placed on the outer side of the left and right sides of the backrest 412.

[0041] When the trajectory capturing block 3 is used to capture the trajectory of the jumping bullet, the trajectory capturing block 3 needs to be horizontally placed above the concrete block 2, and when the trajectory capturing block 3 is installed, if the high-altitude installation is performed at the horizontal angle, the installation is very difficult and unsafe, so as to overcome the problem, the trajectory capturing block 3 can be freely switched between the vertical and horizontal states on the rack, when the trajectory capturing block 3 is installed or removed, the trajectory capturing block 3 is placed in the vertical state, so that the installation and removal are convenient, and when the trajectory capturing block 3 is used to capture the trajectory of the jumping bullet, the trajectory capturing block 3 is placed in the horizontal state, so that the trajectory capturing block 3 is conveniently realized.

[0042] As Figure 5 and Figure 6 In order to realize the above functions, the adjusting mechanism is arranged on the rack 1 to realize the switching of the trajectory capturing block 3 between the vertical and horizontal assembly states on the rack 1, and the adjusting mechanism comprises a second motor 51, two second lead screws 52, a fixed seat 53, two sliding rails 54 and two sliding blocks 55.

[0043] The two second lead screws 52 are vertically arranged on the rack 1, the second motor 51 drives the two second lead screws 52 to synchronously rotate through the synchronous wheel and the synchronous belt. The two sliding rails 54 are horizontally fixed on the rack 1, the two sliding blocks 55 are slidingly connected on the two sliding rails 54, the fixed seat 53 is provided with two fixed seats, one end of the fixed seat 53 is hinged on the nut of the second lead screw, the other end of the fixed seat 53 is hinged on the sliding block 55, and the two ends of the trajectory capturing block 3 are fixed on the two fixed seats 53.

[0044] The fixed groove 531 is arranged on the fixed seat 53, the trajectory capturing block 3 is inserted in the fixed groove during use, and the locking bolt 532 is threadedly connected on the outer wall of the fixed seat 53, the locking bolt 532 extends into the fixed groove 531 and abuts against the trajectory capturing block 3.

[0045] When the trajectory capturing block 3 is replaced, the trajectory capturing block 3 is driven to the vertical state through the adjusting mechanism, then the locking bolts 532 on the upper and lower fixed seats 53 are sequentially loosened, and the trajectory capturing block 3 is taken down. Then the bottom end of the new trajectory capturing block 3 is first placed in the lower fixed seat 53 and locked, and then the top end of the trajectory capturing block 3 is locked in the upper fixed seat 53. Finally, the trajectory capturing block 3 is adjusted to the horizontal state by opening the second motor 51.

[0046] The bottom layer of the trajectory capturing block 3 is the aluminum skin 31, in order to better observe the trajectory of the bullet, a layer of target paper is arranged below each layer of sponge 32. Meanwhile, in order to avoid the bullet penetrating the trajectory capturing block and recovering the bullet, the steel plate 33 is arranged in the top layer of the trajectory capturing block.

[0047] Combined Figure 7 and Figure 8 In use, the concrete block is first fixed and adjusted to the required angle, then the trajectory capturing block 3 is installed and adjusted to the horizontal state (such asFigure 8 ), the projectile is deflected after impacting the impact surface of the concrete block (i.e. target body), invades the test target (i.e. trajectory capture block), and leaves a bullet hole inside the test target. After the penetration test is completed, the test target is disassembled, the impact hole positions of each layer of target paper and sponge are recorded, and the trajectory of the projectile is restored.

[0048] The above merely describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements without departing from the principles of the present application, and these improvements should also be considered as the protection scope of the present application.

Claims

1. A device for capturing the trajectory of a projectile after oblique penetration, characterized in that: The utility model relates to a concrete block trajectory capturing device, including Frame (1); Concrete block (2), the vertical height and the inclination angle of concrete block (2) on frame (1) are adjustable; Track capturing block (3) can be vertically and horizontally assembled state switching on frame (1), and track capturing block (3) is formed by the staggered layering arrangement of several aluminum skins (31) and sponge (32).

2. The oblique penetration post- bounce trajectory capture device of claim 1, wherein: Lifting frame (11) is slidably connected on the frame (1), and the lifting frame (11) is driven and lifted by the air cylinder (12), and the concrete block (2) is arranged on the lifting frame (11).

3. The oblique penetration post-impact trajectory capture device of claim 2, wherein: Angle adjusting mechanism is arranged on the lifting frame (11), and the angle adjusting mechanism includes fixed seat (41), first lead screw (42), first motor (43) and driving arm (44), the fixed seat (41) is rotatably connected on the lifting frame (11), one end of the driving arm (44) is hingedly connected on the fixed seat (41), the other end is slidably connected on the lifting frame (11), the first lead screw (42) is rotatably connected on the lifting frame (11), and the first lead screw (42) is threadedly connected with the driving arm (44), and the first motor (43) drives the first lead screw to rotate.

4. The oblique penetration post- bounce trajectory capture device of claim 3, wherein: The driving arm (44) is U-shaped structure with one middle side and two side edges, the two side edges of the driving arm (44) are hingedly connected with the fixed seat (41), and the two ends of the middle side are slidably connected on the lifting frame (11), and the first lead screw (42) is threadedly connected with the middle side.

5. The oblique penetration post-impact trajectory capture device of claim 3, wherein: The fixed seat (41) includes bottom beam (411), backrest (412), fixed plate (413), plug plate (414) and locking screw (415), the backrest (412) is vertically fixed on the bottom beam (411), two fixed plates (413) are symmetrically arranged and slidably connected on the bottom beam (411) along the axial direction of the first lead screw (42), the locking screw (415) is fixed on the fixed plate (413) and is horizontally inserted on the backrest (412), and two plug plates (414) are inserted on the two fixed plates (413) along the radial direction of the first lead screw (42).

6. The oblique penetration post-impact trajectory capture device of claim 5, wherein: Two mutually outwardly extending burrs (416) are arranged on the backrest (412), the locking screw (415) is inserted on the burr (416), and the fixed plate (413) is slid on the bottom beam (411) and is arranged on the two sides of the backrest (412).

7. The oblique penetration post- bounce trajectory catching device of claim 1, wherein: The rack (1) is provided with an adjusting mechanism for switching the vertical and horizontal assembly state of the trajectory capture block (3) on the rack (1), the adjusting mechanism comprises a second motor (51), a second screw rod (52), a fixed seat (53), a sliding rail (54) and a sliding block (55), two second screw rods (52) are vertically arranged on the rack (1), the second motor (51) drives the synchronous rotation of the two second screw rods (52), nuts are threadedly connected on the two second screw rods (52), two sliding rails (54) are horizontally fixed on the rack (1), two sliding blocks (55) are slidingly connected on the two sliding rails (54), the fixed seat (53) is provided with two, one end of one fixed seat (53) is hingedly connected on the nut of the second screw rod, the other end of the other fixed seat (53) is hingedly connected on the sliding block (55), and the two ends of the trajectory capture block (3) are fixed on the two fixed seats (53).

8. The oblique penetration post- bounce trajectory capture device of claim 7, wherein: The fixed seat (53) is provided with a fixed groove (531), the trajectory capture block (3) is inserted into the fixed groove, and a locking bolt (532) is threadedly connected on the outer wall of the fixed seat (53), the locking bolt (532) extends into the fixed groove (531) and abuts against the trajectory capture block (3).

9. The oblique penetration post- bounce trajectory capture device of claim 7, wherein: The second motor (51) drives the synchronous rotation of the two second screw rods (52) through a synchronous wheel and a synchronous belt.

10. The oblique penetration post- bounce trajectory capture device of claim 7, wherein: The bottom layer of the trajectory capture block (3) is an aluminum skin (31), the top layer is a steel plate, and a layer of target paper is arranged below each layer of sponge (32).

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