Multi-stage vacuum fragment collecting device and collecting method

Abstract

The invention relates to a multi-stage vacuum fragment collecting device and a collecting method. The device comprises a target frame 1, recycling barrels 2, a supporting frame 3, a sealing cover plate 4, an air inflation device 5 and an air exhaust device 6, the multiple recycling barrels 2 are connected end to end and then fixed to the supporting frame 3, the target frame 1 and the sealing cover plate 4 are fixed to the two ends of the recycling barrels 2 in a sealed mode respectively, the air inflation device 5 and the air exhaust device 6 are used for conducting air exhaust and / or air deflation operation on inner cavities of the recycling barrels 2, and then a target shooting test is conducted. The multi-stage vacuum fragment collecting device is small in overall size, can move flexibly, is not limited by the environment and the site, combines the functions of multi-stage assembly, rapid air exhaust, synchronous air supply and the like, greatly reduces the preparation time in the earlier stage of a test, and improves benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of machinery and measuring equipment, and in particular to a multi-stage vacuum fragment collection device and a collection method. Background Art

[0002] During the target shooting test, a large amount of debris and powder particles will be generated, which usually need to be collected for physical and chemical analysis. In some cases, it is also necessary to prevent these fragments from being oxidized by air.

[0003] The common collection devices on the market are small and have limited use environments and working conditions, and do not have dust and vacuum collection capabilities, which makes it impossible to implement target shooting tests in multiple environments. In addition, the existing collection devices are not convenient to move, which affects work efficiency. Summary of the invention

[0004] One of the purposes of the present invention is to overcome the above-mentioned problems existing in the prior art and provide a multi-stage vacuum fragment collection device, which includes a target frame 1, a recovery tube 2, a support frame 3, a sealing cover plate 4 and an exhaust device 6. The target frame 1 and the sealing cover plate 4 are respectively sealed and fixed at the left and right ends of the recovery tube 2. The recovery tube 2 is fixed on the support frame 3 and can move therewith. The exhaust device 6 is connected to the internal cavity of the recovery tube 2 to facilitate vacuum extraction.

[0005] Furthermore, the target stand 1 includes a support seat 1-1, a target plate fixing plate 1-2, a target plate 1-5 and a matching sealing mechanism 7, the target plate fixing plate 1-2 is fixed on the support seat 1-1, the target plate 1-5 is fixed on the target plate fixing plate 1-2 and is sealed by the sealing mechanism 7.

[0006] Furthermore, the target stand 1 also includes a lifting screw 1-3 and a caster 1-4. The lifting screw 1-3 is fixed on the top of the support seat 1-1 and is mainly used for lifting the target stand; the caster 1-4 is fixed on the bottom of the support seat 1-1 and is mainly used for adjusting and moving the target stand.

[0007] Furthermore, the sealing mechanism 7 includes a positioning pin 7-1, a flange cover plate 7-2, a cover plate 7-3, an O-ring 7-4, and a buffer pad 7-5. The target plate 1-5 is fixed in the mounting hole in the middle of the cover plate 7-3. The flange cover plate 7-2 is fixedly connected to the target plate fixing plate 1-2 and the cover plate 7-3 through the positioning pin 7-1. The O-ring 7-4 and the buffer pad 7-5 are arranged between the target plate fixing plate 1-2, the flange cover plate 7-2, and the cover plate 7-3 for sealing and buffering.

[0008] Further, the number of the recovery tubes 2 is more than 1, preferably 2-12. The recovery tubes 2 are connected end to end to form a recovery tube group, and the target frame 1 and the sealing cover plate 4 are respectively sealed and fixed at the head and tail ends of the recovery tube group. The design scheme of multi-stage series connection of the recovery tubes is adopted to better adapt to different test size requirements.

[0009] Furthermore, a sealing ring is provided between two adjacent recovery tubes 2, and they are fixedly connected by bolts.

[0010] Furthermore, the number of the support frames 3 is the same as the number of the recovery barrels 2 , and a recovery barrel 2 is fixed on each support frame 3 (ie, one-to-one correspondence).

[0011] Furthermore, the support frame 3 includes a bracket 3-1, a frame body 3-2, a strap 3-3, and a Foma wheel 3-4. The bracket 3-1 is arranged at the top of the frame body 3-2, the Foma wheel 3-4 is arranged at the bottom of the frame body 3-2, the strap 3-3 is fixed to the top of the frame body 3-2 after crossing the bracket 3-1, and the recovery tube 2 is fixed between the strap 3-3 and the bracket 3-1.

[0012] Furthermore, the device also includes an inflation device 5, and an inflation port and an exhaust port are provided on the sealing cover plate 4. The inflation device 5 and the exhaust device 6 are respectively connected to the inflation port and the exhaust port on the sealing cover plate 4 through pipelines, thereby performing inflation and exhaust operations on the space inside the recovery cylinder or the recovery cylinder group.

[0013] The second object of the present invention is to provide a method for collecting vacuum fragments using the above-mentioned device, including: determining the number of recovery tubes 2 and support frames 3 according to test requirements, connecting the recovery tubes 2 end to end and fixing them on the corresponding support frames 3; fixing the target frame 1 and the sealing cover plate 4 on the left and right ends of the recovery tube 2 to seal it, connecting the inflation device 5 and the exhaust device 6 to the recovery tube 2 respectively, and performing target shooting experiments after exhausting and inflating the recovery tube 2 as needed, and the fragments are scattered in the recovery tube 2, and the target frame 1 or the sealing cover plate 4 can be removed to collect the fragments.

[0014] Compared with the existing similar technologies, the improvements of the present invention are mainly reflected in the following aspects: (1) The diameter, length, number, etc. of the recovery tube are flexibly adjustable, and it has the advantages of modularization, multi-stage series connection, and rapid assembly and disassembly. Only one set of equipment is needed to meet different test requirements; (2) The overall size of the equipment is small and can be flexibly moved without being restricted by the environment and site; (3) It has the ability to test and collect fragments under vacuum or special atmosphere (such as nitrogen, argon), which is relatively safe and reliable; (4) It has a simple structure and low cost, which significantly reduces the preparatory work before the test, reducing the test time of no less than 5 hours to 1-2 hours, greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the three-dimensional schematic diagrams of the multi-stage vacuum fragment collection device.

[0016] Figure 2 This is the second stereoscopic schematic diagram of the multi-stage vacuum fragment collection device.

[0017] Figure 3 A three-dimensional schematic diagram of the support frame.

[0018] Figure 4 A side view of the target stand.

[0019] Figure 5 This is a front view of the target stand.

[0020] Figure 6 for Figure 4 Enlarged diagram of the circled area.

[0021] The accompanying drawings are marked as follows: 1 target frame, 1-1 support seat, 1-2 target plate fixing plate, 1-3 lifting eye screw, 1-4 caster, 1-5 target plate; 2 recovery tube; 3 support frame, 3-1 bracket, 3-2 frame body, 3-3 strap, 3-4 Forma wheel; 4 sealing cover plate; 5 inflation device; 6 exhaust device; 7 sealing mechanism, 7-1 positioning pin, 7-2 flange cover plate, 7-3 cover plate, 7-4 O-ring, 7-5 buffer pad. DETAILED DESCRIPTION

[0022] In order to enable ordinary technicians in the field to fully understand the technical solutions and beneficial effects of the present invention, the following is a further detailed description in conjunction with specific embodiments and drawings.

[0023] like Figure 1-2 A multi-stage vacuum fragment collection device is shown, which mainly includes a target frame 1, a recovery tube 2, a support frame 3, a sealing cover plate 4, an air charging device 5, and an air extraction device 6, wherein 3, 6 or more recovery tubes 2 are connected end to end to form a straight pipeline, and the target frame 1 and the sealing cover plate 4 are respectively connected and fixed at both ends of the pipeline, thereby achieving the sealing of the pipeline. In order to ensure the sealing of the pipeline, a sealing ring is placed at the connection part of two adjacent recovery tubes 2, and then they are fastened together by multiple sets of bolts.

[0024] In order to resist pressure and ensure strength, the recycling drum 2 is made of alloy material, so it is heavy, and a matching support frame 3 is specially designed. The main body of the support frame 3 is a metal frame frame 3-2, and an arc-shaped bracket 3-1 and a matching strap 3-3 are arranged on the top of the frame 3-2, and 4 sets of fumar wheels 3-4 are arranged at the bottom of the frame 3-2 for easy movement. The left and right ends of each recycling drum 2 are respectively in contact with the left and right brackets 3-1 of the support frame 3, and then the strap 3-3 is tightened to fix it.

[0025] The structure of the target frame 1 is relatively complex, including a metal frame support frame 1-1, a target plate fixing plate 1-2, and a target plate 1-5. The target plate 1-5 is fixed on the target plate fixing plate 1-2, and the combination of the two is fixed on the upper part of the support frame 1-1. In order to ensure a reliable sealed connection between the target frame 1 and the recovery tube 2, a set of special sealing mechanisms 7 is also designed. The sealing mechanism 7 mainly includes a positioning pin 7-1, a flange cover plate 7-2, a cover plate 7-3, an O-ring 7-4 and a buffer pad 7-5. A mounting hole is provided in the middle of the cover plate 7-3, and the target plate 1-5 is fixed in the mounting hole. The positioning pin 7-1 passes through the positioning holes on the target plate fixing plate 1-2, the flange cover plate 7-2, and the cover plate 7-3 to determine the installation position of the three, and then the flange cover plate 7-2 and the cover plate 7-3 are fixed together with screws, and then the whole is fixed to the target plate fixing plate 1-2. In order to prevent air leakage and avoid collision of parts due to vibration, an O-ring 7-4 and a buffer pad 7-5 are provided between the target plate fixing plate 1-2, the flange cover plate 7-2 and the cover plate 7-3.

[0026] In order to meet as many different test requirements as possible, an exhaust port, an air filling port and corresponding valves are reserved on the sealing cover plate 4. The inflation device 5 and the exhaust device 6 are respectively connected to the inflation port and the exhaust port through pipelines, so as to facilitate vacuuming the recovery cylinder or injecting protective gases such as argon and nitrogen.

[0027] Attach Figure 1 For example, the following describes the assembly method of the multi-stage vacuum fragment collection device: first, prepare 6 recovery tubes 2 of the same size, use straps 3-3 to fix these recovery tubes 2 on 6 different support frames 3, move the support frames 3 to ensure that each recovery tube 2 is aligned head to tail, insert the sealing ring and tighten the bolts, thereby connecting all the recovery tubes 2 horizontally in series; assemble the target frame 1 and check its sealing performance, then install it at the outer port of the left recovery tube 2, and at the same time install the sealing cover plate 4 to the outer port of the right recovery tube 2, then connect the inflation device 5 and the vacuum device 6, lock all casters or Forma wheels, and thus complete the assembly of the device.

[0028] The method of using the multi-stage vacuum fragment collection device is as follows: the air extraction device 6 is turned on, and the air inside the recovery tube 2 is continuously extracted. When the vacuum degree in the tube drops to -100kpa, the air extraction is stopped and the air valve is closed, and the target shooting test can be started. The vacuum degree of the recovery tube 2 can also be pumped to -100kpa and then the air extraction is stopped, and then the air filling device 5 is turned on to fill the tube with an inert gas such as argon, and then the air valve is closed to start the target shooting test. During the target shooting test, the bullet or shell passes through the target frame from the left side and enters the recovery tube, and the explosion generates a large amount of fragments and dust, which can be collected.

[0029] The multi-stage vacuum fragment collection device provided by the present invention combines the functions of multi-stage assembly, rapid air extraction, synchronous air supply, etc., which greatly reduces the preparation time before the test, combines the cumbersome test steps together, and improves the efficiency.

Claims

1. A multi-stage vacuum fragment collection device, characterized in that: The device includes a target frame 1, a recovery tube 2, a support frame 3, a sealing cover plate 4, and an exhaust device 6. The target frame 1 and the sealing cover plate 4 are respectively sealed and fixed at both ends of the recovery tube 2. The recovery tube 2 is fixed on the support frame 3 and can move therewith. The exhaust device 6 is connected to the internal cavity of the recovery tube 2.

2. The multi-stage vacuum fragment collection device according to claim 1, characterized in that: The target stand 1 includes a support seat 1-1, a target plate fixing plate 1-2, a target plate 1-5, and a sealing mechanism 7. The target plate fixing plate 1-2 is fixed on the support seat 1-1, and the target plate 1-5 is fixed on the target plate fixing plate 1-2 and sealed by the sealing mechanism 7.

3. The multi-stage vacuum fragment collection device according to claim 2, characterized in that: The target stand 1 also includes a lifting eye screw 1-3 and a caster 1-4. The lifting eye screw 1-3 is fixed on the top of the support seat 1-1, and the caster 1-4 is fixed on the bottom of the support seat 1-1.

4. The multi-stage vacuum fragment collection device according to claim 2, characterized in that: The sealing mechanism 7 includes a positioning pin 7-1, a flange cover plate 7-2, a cover plate 7-3, an O-ring 7-4, and a buffer pad 7-5. The target plate 1-5 is fixed in the mounting hole in the middle of the cover plate 7-3. The flange cover plate 7-2 is fixedly connected to the target plate fixing plate 1-2 and the cover plate 7-3 through the positioning pin 7-1. The O-ring 7-4 and the buffer pad 7-5 are arranged between the target plate fixing plate 1-2, the flange cover plate 7-2, and the cover plate 7-3.

5. The multi-stage vacuum fragment collection device according to claim 1, characterized in that: The number of the recovery tubes 2 is 2-12.

6. The multi-stage vacuum fragment collection device according to claim 5, characterized in that: A sealing ring is arranged between two adjacent recovery tubes 2, and each recovery tube is fixedly connected by bolts.

7. The multi-stage vacuum fragment collection device according to claim 5, characterized in that: The number of the support frames 3 is the same as the number of the recovery tubes 2 , and a recovery tube 2 is fixed on each support frame 3 .

8. The multi-stage vacuum fragment collection device according to claim 1, characterized in that: The support frame 3 includes a bracket 3-1, a frame body 3-2, a strap 3-3, and a Foma wheel 3-4. The bracket 3-1 is arranged on the top of the frame body 3-2, the Foma wheel 3-4 is arranged at the bottom of the frame body 3-2, the strap 3-3 is fixed to the top of the frame body 3-2 after crossing the bracket 3-1, and the recovery tube 2 is fixed between the strap 3-3 and the bracket 3-1.

9. The multi-stage vacuum fragment collection device according to claim 1, characterized in that: The device also includes an air charging device 5 , and an air charging port and an air exhaust port are arranged on the sealing cover plate 4 . The air charging device 5 and the air exhaust device 6 are connected to the air charging port and the air exhaust port on the sealing cover plate 4 respectively.

10. A method for collecting vacuum fragments using the device according to any one of claims 1 to 9, characterized in that The method comprises: determining the number of recovery tubes 2 and support frames 3, connecting the recovery tubes 2 end to end and fixing them on the corresponding support frames 3; fixing the target frame 1 and the sealing cover plate 4 at the two ends of the recovery tube 2 respectively to ensure the sealing thereof, connecting the inflation device 5 and the exhaust device 6 to the recovery tube 2 respectively, performing the exhaust and inflation operations on the recovery tube 2 and then conducting the target shooting experiment, removing the target frame 1 or the sealing cover plate 4, and collecting the fragments scattered in the recovery tube 2.

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