阅读说明：本技术 一种弹丸无损回收装置 (Harmless recovery unit of shot ) 是由 牛伟萌 房立清 赵排航 齐子元 郭德卿 李永建 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种弹丸无损回收装置,包括：挡弹板、基座、支撑架、测速装置、安装件、回收筒；挡弹板设置于基座的一端,基座上设置有通过孔,挡弹板上设置有与通过孔连通的通孔,支撑架固定在基座上,回收筒设置有回收腔体且通过第一紧固件固定至基座上,回收筒后端设置有分离式回收筒体,分离式回收筒体通过第二紧固件与回收筒连接,回收筒内设置有缓冲层,挡弹板与回收筒之间通过安装件安装有测速装置,基座通过孔的中心与回收筒的中心在同一直线上。本发明一种弹丸无损回收装置结构简单,易于组装,便于拆卸,即用即装,且可以实现速度测量,适用于各种条件下的弹丸测量试验。(The invention discloses a shot nondestructive recovery device, which comprises: the device comprises a baffle plate, a base, a support frame, a speed measuring device, an installation part and a recovery cylinder; the fender apron sets up in the one end of base, be provided with the clearing hole on the base, be provided with the through-hole with the clearing hole intercommunication on the fender apron, the support frame is fixed on the base, the recovery section of thick bamboo is provided with retrieves the cavity and fixes to the base through first fastener, the recovery section of thick bamboo rear end is provided with the disconnect-type and retrieves the barrel, the disconnect-type is retrieved the barrel and is connected with the recovery section of thick bamboo through the second fastener, be provided with the buffer layer in the recovery section of thick bamboo, install speed sensor through the installed part between fender apron and the recovery section of thick bamboo, the center of base clearing hole is. The nondestructive recovery device for the shot has the advantages of simple structure, easiness in assembly and disassembly, can be assembled immediately after use, can realize speed measurement, and is suitable for shot measurement tests under various conditions.)

1. A projectile lossless recovery device, characterized by comprising: the device comprises a baffle plate, a base, a support frame, a speed measuring device, an installation part and a recovery cylinder;

the base sets up to detachably and is connected with the light gas big gun, the fender bullet board set up in the one end of base, be provided with the clearing hole on the base, be provided with on the fender bullet board with the through-hole of clearing hole intercommunication, the support frame is fixed on the base, the recovery drum is provided with the recovery cavity and fixes extremely through first fastener on the base, the recovery drum rear end is provided with the disconnect-type and retrieves the barrel, the disconnect-type retrieve the barrel pass through the second fastener with the recovery drum is connected, be provided with the buffer layer in the recovery drum, the fender bullet board with install speed sensor through the installed part between the recovery drum, the center of base clearing hole with the center of recovery drum is on same straight line.

2. The nondestructive recovery device for projectile of claim 1, wherein said speed measuring device is configured as a speed measuring coil, said speed measuring coil is configured with a groove for winding an electrified wire and a perforation for passing the projectile.

3. The nondestructive recovery device for projectile of claim 2, wherein said speed measuring device comprises a first speed measuring coil and a second speed measuring coil, and said first speed measuring coil and said second speed measuring coil are mounted on said mounting member with adjustable distance.

4. The nondestructive recovery device for projectile of claim 3 wherein said mounting member is fixed to said base by a positioning member, said first tachometer coil is fixedly disposed on said mounting member, and said second tachometer coil is slidably disposed on said mounting member.

5. A nondestructive recovery device for projectile in accordance with claim 4 wherein said mounting member is provided with a slide slot, a clamping member passing through said slide slot for connecting with said second tachometer coil, said clamping member securing said second tachometer coil to said mounting member.

6. A nondestructive projectile recovery apparatus as claimed in claim 5 wherein the distance between said first tachometer coil and said second tachometer coil is set to be in the range of 10cm to 20 cm.

7. An apparatus for nondestructive recovery of a projectile in accordance with any one of claims 1 to 6 wherein said first fastening member is provided as a circular hoop.

8. The nondestructive projectile recovery device of any one of claims 1 to 6 wherein said second fastener member is provided as a semicircular iron band.

9. A nondestructive recovery device for projectile recited in any one of claims 1 to 6 wherein said cushioning layer is formed of a polymeric resin.

10. A nondestructive projectile recovery apparatus as defined in claim 9 wherein said cushioning layer is partially cylindrical having an inner diameter smaller than the outer diameter of the projectile and a conical surface at the bottom thereof.

Technical Field

The invention relates to a nondestructive recovery device for shot

Background

When a high-speed or low-speed projectile launching test is performed by using a light gas gun, various parameters of the projectile, such as parameters of impact overload of the projectile, acceleration of the projectile in a barrel and the like, are usually tested, and the test needs to be realized by using a parameter storage test system installed inside the projectile. To obtain the data of the complete acceleration, speed and displacement storage tester, the tested bomb needs to be recovered in a nondestructive mode, and the data in the parameter storage testing system can be read. In addition, in the process of researching parameter storage test, the parameter storage test system also needs to be subjected to overall calibration and parameter impact examination, and a complete parameter storage system needs to be obtained after shooting, so that a projectile nondestructive recovery device used on a light gas gun is urgently needed to complete data collection.

Conventional recovery devices are subject to a number of limitations when utilized with light gas guns. For example, the sand box recycling method needs larger space volume due to the damping limitation of sand; the water damping method requires a long water pipe length, which is not favorable for field layout, and water under high-speed action can be considered as a rigid body, which may cause great damage to the projectile; the parachute recovery method needs a very wide space, a parachute is arranged at the tail of the projectile, and the projectile slowly falls to the ground by utilizing air resistance; patent 201410473544X describes a high speed projectile recovery device with an initial design derived from the non-destructive recovery of penetrating projectiles, whereby a multi-layer structure is provided within a rectangular recovery box to simulate the penetration process. Meanwhile, a buffering medium can be selected according to the type of the shot bullet, and even a plurality of soft and hard medium combinations can be selected, so that the aim of lossless recovery can be achieved. The recycling bin is fixed on a three-dimensional adjustable support frame and is used for aligning the center line of the recycling bin and the center line of the barrel. The disadvantage is that the volume is large, and the device is not suitable for the environment with narrow space; the box body adopts a cubic structure, so that the space is not fully utilized, and certain space waste is caused.

In summary, in the prior art, there is no shot nondestructive recovery device designed specifically for a light gas gun, which has a mature technology and complete functions, and the characteristics of the light gas gun need to consider three problems during the recovery of the shot:

1. the volume of the recovery bin of the light gas gun is relatively narrow, and the recovery device is required to be proper in appearance and small in size.

2. The functions of the light gas gun are required to complete the test purposes of pill penetration, pill speed measurement, target plate protection and the like besides the pill test, so that the device is designed to be detachable and easy to assemble.

3. When high-speed projectiles are launched, the projectiles need to be vacuumized, so the device can not be interfered by external air pressure change, and the goal of projectile recovery is fulfilled.

Therefore, a shot nondestructive recovery device specially suitable for the light gas cannon is needed to be designed.

Disclosure of Invention

The invention provides a projectile lossless recovery device, which aims to solve the problem that no projectile lossless recovery device with complete functions specially designed for a light gas gun exists in the prior art.

A projectile non-destructive recovery device comprising: the device comprises a baffle plate, a base, a support frame, a speed measuring device, an installation part and a recovery cylinder;

the base sets up to detachably and is connected with the light gas big gun, the fender bullet board set up in the one end of base, be provided with the clearing hole on the base, be provided with on the fender bullet board with the through-hole of clearing hole intercommunication, the support frame is fixed on the base, the recovery drum is provided with the recovery cavity and fixes extremely through first fastener on the base, the recovery drum rear end is provided with the disconnect-type and retrieves the barrel, the disconnect-type retrieve the barrel pass through the second fastener with the recovery drum is connected, be provided with the buffer layer in the recovery drum, the fender bullet board with install speed sensor through the installed part between the recovery drum, the center of base clearing hole with the center of recovery drum is on same straight line.

Preferably, the speed measuring device is configured as a speed measuring coil, and the speed measuring coil is provided with a groove for winding the electrified conducting wire and a perforation for the projectile body to pass through.

Preferably, the speed measuring device comprises a first speed measuring coil and a second speed measuring coil, and the first speed measuring coil and the second speed measuring coil are mounted on the mounting part in an adjustable distance.

Preferably, the mounting part is fixed on the base through a positioning part, the first speed measuring coil is fixedly arranged on the mounting part, and the second speed measuring coil is slidably arranged on the mounting part.

Preferably, a sliding groove is formed in the mounting part, a clamping piece penetrates through the sliding groove to be connected with the second speed measuring coil, and the clamping piece fixes the second speed measuring coil to the mounting part.

Preferably, the distance between the first tachometer coil and the second tachometer coil is set to 10cm-20 cm.

Preferably, the first fastener is provided as a circular arc hoop.

Preferably, the second fastener is provided as a semicircular iron hoop.

Preferably, the buffer layer is made of a polymer polyester.

Preferably, a part of the buffer layer is cylindrical, the inner diameter of the buffer layer is smaller than the outer diameter of the projectile, and the bottom of the buffer layer is provided with a conical surface.

The nondestructive recovery device for the shot has the advantages of simple structure, easiness in assembly and disassembly, can be assembled immediately after use, does not influence the use of other functions of the light gas gun, can be normally used in a vacuum environment after the shot is shot, is also provided with the speed measuring module, can realize speed measurement when the shot enters the recovery cylinder to obtain related test data, is simple in material and easy to obtain, is easy to repair when damaged, and can be suitable for shot measurement tests under various conditions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a nondestructive pellet recycling apparatus of the present invention;

fig. 2 is a partial sectional view of a projectile recovery apparatus of the present invention without damage.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following drawings in the embodiments of the present invention are connected to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the present invention provides a nondestructive recovery apparatus for shot, comprising: the device comprises a baffle plate 1, a base 2, a support frame 3, a speed measuring device, an installation part 6 and a recovery cylinder 7;

the bottom end of the base 2 is provided with 4 threaded holes, the threaded holes are fixedly connected with bolts on a light gas gun fixing table, so that the nondestructive recovery device for the shot is detachably connected to the light gas gun, the bullet baffle plate 1 is fixed on a through hole in front of the base 2 through the bolts and used for blocking a bullet holder launched, the bullet holder is blocked by the bullet baffle plate 1, and a bullet body is launched out after passing through a through hole in the bullet baffle plate 1 and the through hole in the base 2, so that the bullet holder is separated from the bullet body.

In the embodiment of the invention, the speed measuring device is provided with a speed measuring coil, a groove is arranged on the speed measuring coil for winding a certain number of turns of electrified conducting wires, and a through hole for the elastomer to pass through is arranged on the speed measuring coil, the speed measuring device comprises a first speed measuring coil 4 and a second speed measuring coil 5, the first speed measuring coil 4 and the second speed measuring coil 5 are arranged on an installation part 6, the distance between the first speed measuring coil 4 and the second speed measuring coil 5 can be adjusted, the installation part 6 is fixed on the base 2 through 4 positioning parts 10, in the embodiment, the positioning part 10 is an L-shaped metal part, the first speed measuring coil 4 is fixedly arranged on the installation part 6, the second speed measuring coil 5 is slidably arranged on the installation part 6, the sliding arrangement mode is that a sliding groove 61 is arranged on the installation part 6, a clamping part 62 passes through the sliding groove 61 to be connected with the, it can therefore be moved to adjust the distance to the first tacho coil 4, preferably in the range of 10cm-20 cm. The support frame 3 is fixed on the base 2 through bolts, four through holes are formed in the support frame, the recovery barrel 7 is fixed on the four through holes through first fasteners 8, the first fasteners are arc hoops 8, and the positions of the through holes can ensure that the center of the recovery barrel 7 is aligned with the center of the muzzle without being adjusted again. The stabilizer blade end of circular arc hoop 8 is provided with the screw thread, the screw-thread fit who uses nut and gasket and circular arc hoop 8 can be fixed firm with the semicircle hoop, ensure that the center of recovery drum 7 aligns with the muzzle center (both centers on same straight line) can retrieve the projectile body, recovery drum 7 is provided with retrieves the cavity in order to retrieve the projectile body, retrieve and set up buffer layer 12 in the cavity, buffer layer 12's material sets up the buffer material who gathers marginal fat etc. for the polymer, buffer layer 12's partly sets up to the cylinder, its internal diameter is less than the pellet external diameter, the bottom is provided with the conical surface that drills out with the drill bit, with increase area of contact. In the invention, in order to take out the projectile body conveniently, the recovery cylinder 7 is designed to be of a separated type, namely, the rear-end separated recovery cylinder body 11 is arranged, the rear-end separated recovery cylinder body 11 can be separated from the recovery cylinder 7, the design avoids the situation that the projectile body is clamped in the recovery cylinder 7 and cannot be taken out, the rear-end separated recovery cylinder body 11 is arranged to be connected with the recovery cylinder 7 by using three second fastening pieces 9, in the embodiment, the second fastening pieces 9 are semicircular iron hoops 9, and the rear-end separated recovery cylinder body 11 is tightly pressed on the recovery cylinder 7 by matching with bolts.

When the nondestructive recovery device for the projectile is used, the distance between the first speed measuring coil 4 and the second speed measuring coil 5 is adjusted according to actual requirements, then the base 2 is fixed on a fixing table of a light gas cannon, and the distance between the rear end of the rear-end separation type recovery barrel body 11 and a baffle in a recovery bin is 1-2 cm. Then the recovery bin is closed, and the power supply of the speed measuring coil is turned on, so that the light gun shooting can be started. When the projectile flies out of the barrel, the projectile body penetrates through the through hole of the bullet baffle plate 1, the projectile support is separated from the barrel support under the action of the bullet baffle plate 1, the projectile body sequentially penetrates through the first speed measuring coil 4 and the second speed measuring coil 5, two signals are generated by an external oscilloscope, and the speed of the projectile at the moment can be obtained by utilizing the principle of zone-cutting speed measurement. Then the pill gets into in the recovery section of thick bamboo 7, stays in the rear end disconnect-type recovery barrel 11 of recovery section of thick bamboo 7 under the effect of buffer layer 12, later opens the recovery storehouse, unpacks two circular arc hoops and can take off recovery section of thick bamboo 7, opens three semicircle hoops in proper order, takes off the section of thick bamboo wall of rear end disconnect-type recovery barrel 11, and the pill that is wrapped up by buffer layer 12 buffer material can be taken out easily. When the test is needed to be continued, the cylinder wall of the rear-end separated recovery cylinder body 11 is fixed well by the semicircular hoop again, and then the recovery cylinder 7 is fixed on the support frame 3. When the test of retrieving the body no longer need be carried out, the bolt of base 2 can directly be unscrewed, does not influence the use of other functions. When the buffer layer is greatly deformed, the new buffer layer is replaced.

The shot nondestructive recovery device is specially designed for a light gas gun and has the following characteristics:

1. the design of the rear-end separation type recovery barrel is adopted, so that the problem that the recovered shot is difficult to take out is solved.

2. The semi-open type poly-edge grease is used as a buffer material for recovering the buffer layer, so that the cost is low, the recovery effect is good, and the replacement is easy.

3. The circular arc hoop bolt is adopted to fix the recovery cylinder, so that the device is easy to disassemble and assemble and convenient to use.

4. The base adopts detachable bolted connection, does not influence the use of other functions of light gas big gun.

In conclusion, the nondestructive recovery device for the shot solves the problems that the recovery bin is narrow in space and not beneficial to recovery of the shot, is simple in structure, easy to assemble and convenient to disassemble, can be assembled immediately after use, does not influence the use of other functions of the light gas gun, is not influenced by the change of external air pressure compared with a recovery method using schemes such as an air pump and water flow, and can be normally used in a vacuum environment after shot. Meanwhile, the speed measuring module is designed, so that the speed measurement of the projectile entering the recovery cylinder can be realized, relevant test data can be obtained, the device is simple in material and easy to obtain, the device is easy to repair when damaged, and the device can be suitable for projectile measurement tests under various conditions.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features may be made in the specification without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.