Storage grid type fragment collecting device

Abstract

The invention relates to the technical field of experimental testing equipment, and discloses a storage format type fragment collecting device so as to improve the resource utilization rate and accurately determine the fragment scattering position. The device comprises a recycling box which is internally provided with a cuboid cavity and is not provided with an upper cover; the water is filled in the recycling box; the storage lattices are divided into latticed cavities and comprise frame bodies and hanging rings, and the hanging rings are located above the frame bodies; the bottom of each cavity is gradually changed from high to low from front to back; the frame body is of a tubular structure without end covers at the front part and the rear part, so that the frame body is submerged in water in the recovery box and is attached to the left side, the right side, the front side and the lower side of the inner wall of the recovery box in a fragment collection state; the gauze element is matched with the clamping groove in the rear portion of the storage lattice frame body so as to be attached to the storage lattices in the fragment collecting state and separated from the storage lattices in the fragment counting process.

Description

Technical Field

[0001] The present invention relates to the technical field of test and measurement equipment, and particularly to a storage format fragment collection device. Background Art

[0002] Fragment collection is to collect fragments formed by the fragmentation of the shell after the detonation of an explosive with a shell. After the fragments are collected, technical research such as mass distribution and forming performance can be carried out, which is mainly used for aspects such as the optimization design of explosives, effectiveness evaluation, and the research on the fragmentation performance of shell materials. It has very high application value in the research of natural fragment shells and semi-preformed fragment shells.

[0003] Fragment collection usually adopts the water (sand) pit collection method, the water (sand) box collection method, or the fiber board collection method.

[0004] The water (sand) pit collection method is to inject water (fine sand) as a deceleration medium for fragments in a ground pit or a cave, and then bury the explosive with a shell in the medium. After detonation, the fragments are screened out. This method is usually used for explosives with relatively small explosion power.

[0005] The water (sand) box collection method is to place the explosive with a shell on the ground, and then arrange water (sand) boxes around the explosive with a shell in a certain layout. After detonation, the fragments fly into the water (sand) boxes to achieve the purpose of fragment recovery. This method is usually used for explosives with relatively large explosion power.

[0006] The fiber board collection method uses thick fiber boards as a deceleration medium to replace water or sand medium.

[0007] In the above three methods, when water or fine sand is used as the deceleration medium, usually only fragments can be collected, and the scattering direction of the fragments cannot be determined, so the original position of the fragments on the explosive with a shell cannot be traced. Using thick fiber boards can determine the scattering direction of the fragments, but the process of taking out the fragments is relatively complicated, and the fragments may be broken again during the taking-out process, affecting the mass distribution of the fragments; moreover, the cost of fiber boards is relatively high, and it cannot meet the high-efficiency large-scale application of multiple tests.

[0008] In order to solve the above problems, it is necessary to study a fragment collection device that can determine the scattering position of the fragments, is simple and convenient to use, has a low cost, and can be used multiple times. Summary of the Invention

[0009] The purpose of the present invention is to disclose a storage format fragment collection device to improve resource utilization rate and accurately determine the scattering position of the fragments.

[0010] To achieve the above object, the storage format fragment collection device disclosed by the present invention includes:

[0011] A recycling bin with a cuboid cavity inside and no upper cover;

[0012] Water filled in the recycling bin;

[0013] A storage grid divided into grid-shaped cavities, including a frame body and a hanging ring, and the hanging ring is located above the frame body; the bottom of each cavity gradually changes from front to back in a trend of decreasing from high to low; the frame body is a tubular structure without end caps at the front and back, so that in the state of fragment collection, it is submerged under the water in the recycling bin and fits with the inner wall of the recycling bin on the left, right, front, and lower four sides;

[0014] A screen mesh that cooperates with the rear slot of the storage grid frame body, so as to fit with the storage grid in the state of fragment collection and separate from the storage grid during fragment statistics.

[0015] Preferably, the bottom surface of each cavity is an inclined plane forming an angle of 1° to 3° with the horizontal plane.

[0016] Optionally, the hanging ring and the storage grid frame body are fixed by means of threads and threaded holes.

[0017] Preferably, a drain port connected to a valve-controlled drain pipe is provided at the lower rear of the recycling bin.

[0018] Preferably, the recycling bin adopts a plug-in structure that is convenient for replacing the front end face.

[0019] The present invention has the following beneficial effects:

[0020] On the one hand, by dividing the storage grid in an array manner, the initial position of the fragments in each grid on the shell explosive can be traced, and the number, size, and mass distribution of the fragments generated after the detonation of the shell explosive can be obtained. On the other hand, after lifting out the storage grid, the resource utilization rate of the recycling bin can be improved by replacing the front end face of the recycling bin and / or by sticking and sealing the perforations with adhesive tape. At the same time, during the process of fragment collection, the storage grid is less damaged under the action of water, so it can be reused multiple times. In addition, the bottom of the cavity gradually changes from front to back in a trend of decreasing from high to low, so that the storage grid drains water while being lifted out, and under the protection of the screen mesh, the fragments collected in each cavity can be effectively prevented from falling and being mixed. And during the subsequent fragment statistics, the screen mesh can be separated from the storage grid to ensure the convenience of statistics. Therefore, the fragment collection device disclosed by the present invention is simple and convenient to operate, has a high resource utilization rate, and is low in cost.

[0021] Next, the present invention will be described in further detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of a fragment recovery device.

[0024] Figure 2 It is a schematic structural diagram of a recovery box.

[0025] Figure 3 It is a schematic structural diagram of a storage compartment.

[0026] Figure 4 It is a schematic structural diagram of a lifting ring.

[0027] Figure 5 It is a schematic structural diagram of a screen.

[0028]

Reference Signs

[0029] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways defined and covered by the claims.

[0030] Embodiment 1

[0031] This embodiment discloses a storage-compartment type fragment collection device. Referring to Figure 1 , it includes a recovery box 1, a storage compartment 2, a screen 3, and water 4; a lifting ring 2.2 is provided on the storage compartment 2, and the storage compartment 2 is placed inside the front of the recovery box 1 and fits against the inner wall of the recovery box 1; the screen 3 is installed at the rear inside the recovery box 1 and fits against the storage compartment 2; water 4 is filled inside the recovery box 1 to submerge the storage compartment 2 and the screen 3.

[0032] As Figure 2 shown, the recovery box 1 is a box structure with a hollow interior and no upper cover, and a rectangular parallelepiped cavity is provided inside. Further, a drain opening connected to a valve-controlled drain pipe can be provided at the lower rear of the recovery box 1.

[0033] As Figure 3 shown, the storage compartment 2 includes a frame 2.1 and a lifting ring 2.2; the frame 2.1 is overall rectangular parallelepiped-shaped, with a grid-shaped cavity inside. The front end of the cavity is slightly higher than the rear end, with an angle of 1° with the horizontal plane. The four sides are rectangular tubular structures without end caps at the front and rear ends. Two symmetrically arranged threaded holes are provided on the frame 2.1; the structure of the lifting ring 2.2 is as Figure 4 shown. The upper part of the lifting ring 2.2 is a circular ring, and the lower part is provided with a thread, which is connected and matched with the threaded hole on the frame 2.1 through the thread.

[0034] As Figure 5 shown, the screen 3 includes a frame 3.1 and a diamond screen 3.2; the frame 3.1 is a flat square tubular structure, and the diamond screen 3.2 is arranged in the middle of the frame.

[0035] Water 4 is filled in the recovery box.

[0036] The implementation principle based on this embodiment is as follows: when the fragment recovery device faces the shell explosive directly and collects the fragments generated by the explosion of the shell explosive, first, the fragments located in the area of the connection line between the fragment recovery device and the shell explosive will move along their scattering directions and impact the recovery box 1. After the fragments penetrate the recovery box 1, they stop moving under the action of water 4 and stay in the storage grid 2. Then, when the storage grid 2 is taken out after detonation, the front section of the grid-like cavity structure inside the frame 2.1 of the storage grid 2 is slightly higher and the rear section is slightly lower, and a screen 3 is placed at the back. When draining the water 4 in the storage grid 2, the fragments will be retained in each grid. Finally, by counting the number, size and mass of the fragments in each grid of the storage grid, and according to the connection line orientation between each grid in the storage grid and the detonation center of the shell explosive, the number, size and mass distribution of the fragments in each orientation when the shell explosive detonates can be determined.

[0037] Therefore, based on the above storage grid type fragment collection device, the corresponding test method includes the following steps:

[0038] 1. First, install the storage grid type fragment collection device, fill the recovery box with water, and ensure that the recovery box, the storage grid and the screen fit together and face the detonation center of the shell explosive directly.

[0039] 2. Detonate the shell explosive. The fragments impact the fragment recovery device at a certain speed, penetrate the front of the recovery box and enter the recovery box. Then, under the obstruction of water, the fragments gradually stop moving and stay in the storage grid.

[0040] 3. Take out the storage grid, count the number, size and mass of the fragments in each grid of the storage grid, and determine the number, size and mass distribution of the fragments in each orientation when the shell explosive detonates according to the connection line orientation between each grid in the storage grid and the detonation center of the shell explosive.

[0041] 4. Seal the holes in the recovery box penetrated by the fragments with adhesive tape. After refilling with water, the above steps can be repeated for the next test. Among them, when the recovery box adopts a plug-in structure that is convenient for replacing the front end face, when the front end face cannot be reused by adhesive tape, it is replaced.

[0042] In summary, the fragment collection device with a storage format disclosed in this embodiment includes: a recovery box with a cuboid cavity inside and no upper cover; water filled in the recovery box; a storage grid divided into grid-shaped cavities, including a frame body and a hanging ring, and the hanging ring is located above the frame body; the bottom of each cavity gradually changes from front to back in a trend of decreasing from high to low; the frame body is a tubular structure without end caps at the front and back, so that in the state of fragment collection, it is submerged under the water in the recovery box and fits with the inner wall of the recovery box on the left, right, front, and lower four sides; a screen mesh that cooperates with the rear slot of the storage grid frame body to fit with the storage grid in the state of fragment collection and separates from the storage grid during fragment counting. It has at least the following beneficial effects:

[0043] On the one hand, by dividing the storage grid in an array manner, the initial positions of the fragments in each grid on the shell explosive can be traced, and the number, size, and mass distribution of the fragments generated after the explosion of the shell explosive can be obtained. On the other hand, after lifting out the storage grid, the resource utilization rate of the recovery box can be improved by replacing the front end face of the recovery box and / or sealing the perforations with adhesive tape. At the same time, during the fragment collection process, the storage grid is less damaged under the action of water, so it can also be reused multiple times. In addition, the gradual change of the bottom of the cavity from front to back in a trend of decreasing from high to low enables the storage grid to drain water while being lifted out, and under the protection of the screen mesh, the fragments collected in each cavity can be effectively prevented from falling and being mixed. When counting the fragments subsequently, the convenience of counting can be ensured by separating the screen mesh from the storage grid. Therefore, the fragment collection device disclosed in the present invention is simple and convenient to operate, has a high resource utilization rate, and is low in cost.

[0044] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A storage format fragment collection device, characterized in that Including: A recycling bin with a cuboid cavity inside and no upper cover; Water filled in the recycling bin; A storage grid divided into grid-shaped cavities, including a frame body and a hanging ring, and the hanging ring is located above the frame body; the bottom of each cavity gradually changes from front to back in a trend of decreasing from high to low; the frame body is a tubular structure without end caps at the front and back, so that in the state of fragment collection, it is submerged under the water in the recycling bin and fits with the inner wall of the recycling bin on the left, right, front, and lower four sides; A screen mesh that cooperates with the rear slot of the storage grid frame body, so as to fit with the storage grid in the state of fragment collection and separate from the storage grid during fragment counting.

2. The storage format fragment collection device according to claim 1, characterized in that, The bottom surface of each cavity is an inclined plane at an angle of 1° to 3° with the horizontal plane.

3. The storage format fragment collection device according to claim 1 or 2, characterized in that, The hanging ring and the storage grid frame body are fixed by means of threads and threaded holes.

4. The storage format fragment collection device according to claim 1 or 2, characterized in that A drain port connected to a valve-controlled drain pipe is provided at the lower rear of the recycling bin.

5. The storage format fragment collection device according to claim 3, characterized in that, A drain port connected to a valve-controlled drain pipe is provided at the lower rear of the recycling bin.

6. The storage format fragment collection device according to claim 1 or 2, characterized in that, The recycling bin adopts a plug-in structure that facilitates the replacement of the front end face.

7. The storage format fragment collection device according to claim 3, characterized in that, The recycling bin adopts a plug-in structure that facilitates the replacement of the front end face.

8. The storage format fragment collection device according to claim 4, characterized in that, The recycling bin adopts a plug-in structure that facilitates the replacement of the front end face.

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