Self-contained projectile carrier for continuous firing with controllable firing intervals and method of assembly thereof

Abstract

The application discloses a self-separation projectile carrier for continuous emission and controllable emission interval and an assembling method thereof. The self-separation projectile carrier comprises a self-separation projectile carrier body composed of two petals, a projectile placing cavity and a separation spring positioning groove are arranged in the projectile carrier, and the tail limiting groove of the projectile carrier can be connected with the top step limiting cone of the same self-separation projectile carrier, so that the continuous emission of multiple projectiles can be realized, and the emission interval can be controlled. In the process of emission of the projectile, the separation spring can provide a force to the whole projectile carrier to make the projectile carrier separate by itself. The separation spring is placed in the positioning groove in a positive and negative manner, and in the separation process, the two petals can be uniformly stressed, the trajectory of the projectile can be kept stable, and the experiment failure caused by the trajectory deviation can be avoided. The device designed in the application has wide application range, is convenient to install, is easy to realize, and can be independently used in all existing test equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of material impact dynamics, in particular to a self-separation projectile carrier for continuous launching and controllable launch interval and an assembling method thereof. BACKGROUND

[0002] At present, a light gas gun is a widely used loading device in high-speed and super-high-speed impact damage experiments. The required projectile velocity in super-high-speed impact experiments is generally above 6-7 km / s, and the launching capacity of a two-stage light gas gun can meet the speed requirement. However, due to the different sizes of the launched projectiles or fragments, and in order to prevent the projectiles from seriously damaging the launch tube during high-speed movement in the launch tube, the projectiles need to be launched with a carrier to complete the experiment. The carrier and the projectile need to be separated before reaching the target in the experiment to ensure the effectiveness of the experiment.

[0003] The existing launch carrier structure can only load one projectile at a time. In the case of multiple fragments hitting at high speed, it cannot meet the condition requirement. The experimental data obtained by the existing experimental method is not accurate and effective, which will affect the experimental results. Moreover, under this experimental condition, the experimental cost and time will also be multiplied. In addition, the carrier needs to be separated from the projectile before the projectile hits the target. The main way of separation is to hit the separator. The existing carrier has a large constraint on the projectile, which also results in a low separation success rate and a greatly reduced experimental success rate.

[0004] At present, a known adjustable distance tandem carrier (CN205192331U) is formed by tightly attaching a left petal shell and a right petal shell to form a carrier body, and the projectile is placed in the projectile placement cavity formed between the first projectile cavity and the third projectile cavity. Then the carrier body is placed in the light gas gun launch tube, and under the pressure pushing action of high-pressure gas, the carrier body starts to move, and separation is achieved through multiple springs to launch two projectiles at a time. However, the carrier is integrated, and the separation of the carrier will cause the trajectory of the rear-end projectile to deviate, which cannot achieve the stable trajectory of all projectiles. Another known light gas gun pneumatic separation carrier (CN104729364B) uses the air resistance of the target chamber to achieve automatic separation of the carrier and the projectile, which has the characteristics of improving the external ballistic performance of the projectile and reducing the launch cost. Although it solves the problem of the existing carrier that needs to be assembled with additional devices for separation and the unsatisfactory separation effect, it cannot achieve continuous launching of the projectile, and cannot control the launch time interval. SUMMARY

[0005] Invention purposes: In view of the above problems, the purpose of the present application is to provide a self-separation projectile carrier for continuous launching and controllable launch interval, solve the problem that the current projectile carrier cannot realize continuous launching, avoid the influence of projectile carrier separation on the trajectory of the projectile body, make the launch interval controllable, and collect a large number of high-speed impact conditions of the projectile body without multiple experiments, so that the experiment can reflect the real damage condition of high-speed impact, improve the accuracy of experimental data, and provide an assembly method.

[0006] Technical scheme: A self-separation projectile carrier for continuous launching and controllable launch interval, comprising a launch tube for sequentially and continuously placing the projectile carrier, the projectile carrier comprising a left lobe, a right lobe, and a separation spring, the left lobe and the right lobe are structurally identical and are mirror images of each other, and the separation spring is placed between the two, the left lobe and the right lobe are mutually attached to form a whole and placed in the launch tube, the outer peripheral walls of the two are respectively in contact with the inner walls of the launch tube, so that the separation spring is pressed between the left lobe and the right lobe, and the projectile body is installed at the center of the head of the whole formed by the left lobe and the right lobe, the head of the whole is a convex body, and the tail is a concave body, the convex body and the concave body are structurally matched, so that the heads and tails of two adjacent projectile carriers in the launch tube can be docked.

[0007] The length of the projectile carrier can be changed according to the experimental requirements, that is, by manufacturing left lobes and right lobes of various specifications and lengths, the control of the launch interval can be realized.

[0008] Further, the outer peripheral surface of the head of the left lobe is a step-shaped curved surface one extending in the axial direction, the tail is provided with a step-shaped limiting groove one extending in the axial direction, the outer peripheral surface of the head of the right lobe is a step-shaped curved surface two extending in the axial direction, and the tail is provided with a step-shaped limiting groove two extending in the axial direction, the left lobe and the right lobe are connected to form a whole, so that the step-shaped curved surface one and the step-shaped curved surface two are integrated into a step-shaped peripheral surface, the head of the projectile carrier forms a step-shaped conical frustum, the step-shaped limiting groove one and the step-shaped limiting groove two are integrated into a step-shaped cylindrical recess, and the step-shaped conical frustum and the step-shaped cylindrical recess can be docked and matched.

[0009] By designing the step-shaped conical frustum and the step-shaped cylindrical recess, multiple projectile carriers can be connected, thereby realizing the continuous launching of the projectile body, better meeting the experimental requirements, and reducing the experimental cost.

[0010] Optimally, a left lobe projectile body placing cavity is formed in the center of the head of the left lobe, and a right lobe projectile body placing cavity is formed in the center of the head of the right lobe, the left lobe and the right lobe are connected to form a whole, so that the left lobe projectile body placing cavity and the right lobe projectile body placing cavity are integrated into a cylindrical cavity, and the projectile body is placed in the cylindrical cavity.

[0011] The bottom surface of the stepped columnar groove is provided with a cylindrical elastic body cavity in the center, and the head of the elastic body protrudes out of the cylindrical cavity.

[0012] Further, the separation springs are in V-shaped structure.

[0013] The elastic body can be separated by the separation springs, and the trajectory of the elastic body can be kept stable.

[0014] Optimally, four left lobe separation spring positioning grooves are arranged in parallel and at intervals on the contact surface of the left lobe, and two of the left lobe separation spring positioning grooves are arranged in axial symmetry and at intervals; four right lobe separation spring positioning grooves are arranged in parallel and at intervals on the contact surface of the right lobe, and two of the right lobe separation spring positioning grooves are arranged in axial symmetry and at intervals, the left lobe separation spring positioning grooves and the right lobe separation spring positioning grooves correspond to each other, and one separation spring is arranged between the left lobe separation spring positioning groove and the right lobe separation spring positioning groove.

[0015] Optimally, the four separation springs are arranged in positive and negative directions alternately.

[0016] The separation springs are arranged in the separation spring positioning grooves arranged in the elastic body, and are arranged in positive and negative directions alternately, so that a balanced force is provided for the elastic body, the elastic body is separated stably, the trajectory of the elastic body in the launching process is not affected by uneven force, multiple elastic bodies can be launched continuously and the trajectory is stable, and the accuracy of experimental data is ensured.

[0017] An assembly method of the self-separation elastic body launcher for continuous launching and controllable launching interval is provided, and the assembly method comprises the following steps.

[0018] Step 1: take a right lobe, and install the separation springs on the right lobe, the separation springs are arranged in multiple and in positive and negative directions alternately.

[0019] Step 2: take another right lobe, and install the separation springs on the right lobe in the same way as in step 1.

[0020] Step 3: butt the two right lobes at the head and tail, and arrange the elastic bodies at the corresponding positions of the two right lobes.

[0021] Step 4: take two left lobes, and install the left lobes on the first and second right lobes respectively, each separation spring is tightly attached to the corresponding right lobe and left lobe, and the separation springs are in a tightened state, and two elastic body launchers butted at the head and tail and provided with the elastic bodies are assembled.

[0022] Step five: the first whole cartridge and the second part of the cartridge are pressed into the launch tube, then a right petal is taken, the separation spring and the projectile body are installed in sequence, then a left petal is taken and connected with the right petal to form a complete cartridge containing the projectile body, and the second cartridge tail is connected and pressed into the launch tube;

[0023] Step six: the cartridges are assembled in sequence in the manner of step five and are pressed into the inner wall of the launch tube, so that the cartridges are connected in sequence along the direction of the action of the high-pressure hydrogen gas in the light gas gun;

[0024] Step seven: the cartridges are installed in the launch tube, the light gas gun is triggered, the light gas gun provides a force for the cartridges to move along the launch tube, and the separation of the projectile body and the cartridge is realized in the movement process.

[0025] Advantages: compared with the prior art, the advantages of the present application are:

[0026] (1) The left and right petal combination cartridge design is adopted, the cartridge front part forms a projectile body placing cavity, so that the projectile body can be placed in the projectile body placing cavity and launched together with the cartridge, and the accuracy of the experiment is ensured.

[0027] (2) The cartridge is provided with a separation spring inside, and the separation spring is a balanced force acting inside the petal, the separation spring is placed in pairs in the cartridge, can provide a separation force to the two petals in two different directions, and can ensure the good separation of the cartridge and the projectile body, so that the trajectory of the projectile body is not changed due to uneven separation of the projectile body during high-speed movement, the stability of the projectile body trajectory is ensured, and the target can be hit stably.

[0028] (3) The present application adopts a connectable form, the cartridge head stepped cone and the tail stepped cylindrical groove are matched by butt joint, the connection is close, a plurality of projectiles can be continuously launched at one time, the high-speed impact situation of a large number of fragments simulated by multiple experiments is solved, the real damage situation of the high-speed projectile body can be correctly reflected, and the accuracy of the experimental data is ensured.

[0029] (4) The cartridge can change the length of the cartridge to realize the interval of the projectile launching time, and can better adapt to the requirements of various experiments, which brings convenience to the experiment.

[0030] (5) The cartridge adopts a self-separation design, the separation spring inside can realize separation without adding additional separation device, and the cartridge is uniformly stressed and stably separated. DETAILED DESCRIPTION

[0031] Fig. 1 It is a structure diagram of the cartridge in the launch tube;

[0032] Fig. 2 Fig. 1 is a schematic diagram of the front view of the bullet carrier;

[0033] Fig. 3 Fig. 2 is a schematic diagram of the sectional view of the bullet carrier;

[0034] Fig. 4 Fig. 3 is a schematic diagram of the three-dimensional structure of the right lobe body when the separating spring is assembled;

[0035] Fig. 5 Fig. 4 is a schematic diagram of the three-dimensional structure of the separating spring. DETAILED DESCRIPTION

[0036] The present application will be further illustrated in conjunction with the accompanying drawings and specific embodiments, and it should be understood that these embodiments are only used to illustrate the present application and not to limit the scope of the present application.

[0037] A self-separating bullet carrier for continuous launching and controllable launching interval, as shown in Figs. 1-5 Fig. 1, comprising a launching tube 2 for sequentially and continuously placing the bullet carrier 1, the bullet carrier 1 comprising a left lobe body 1-1, a right lobe body 1-2, and a separating spring 3.

[0038] The left lobe body 1-1 and the right lobe body 1-2 are structurally identical and mirror-imaged, and the separating spring 3 is placed between them. The separating spring 3 is in a V-shaped structure, and four left lobe body separating spring positioning grooves 1-1-3 are parallelly and spaced apart on the contact surface of the left lobe body 1-1 and the right lobe body 1-2. The four left lobe body separating spring positioning grooves 1-1-3 are axially symmetrically and spaced apart in pairs. Correspondingly, four right lobe body separating spring positioning grooves 1-2-3 are parallelly and spaced apart on the contact surface of the right lobe body 1-2 and the left lobe body 1-1, and the four right lobe body separating spring positioning grooves 1-2-3 are axially symmetrically and spaced apart in pairs. The left lobe body separating spring positioning grooves 1-1-3 and the right lobe body separating spring positioning grooves 1-2-3 correspond to each other, and one separating spring 3 is respectively pressed between them. The four separating springs 3 are sequentially and oppositely placed in pairs. The sizes of the left lobe body separating spring positioning grooves 1-1-3 and the right lobe body separating spring positioning grooves 1-2-3 are matched with the size of the separating spring 3, so as to ensure the accurate butt joint of the left lobe body 1-1 and the right lobe body 1-2 and avoid misplacement.

[0039] The left lobe body 1-1 and the right lobe body 1-2 are mutually adhered to form an integral body and placed in the launching tube 2. The outer peripheral walls of the two are respectively abutted with the inner wall of the launching tube 2, so that the separating spring 3 is pressed between the left lobe body 1-1 and the right lobe body 1-2. The head of the integral body is a convex body, and the tail is a concave body. The convex body and the concave body are matched in structure, so that the head and the tail of the adjacent two bullet carriers 1 in the launching tube 2 can be butt jointed.

[0040] The outer circumferential surface of the head of the left lobe 1-1 is a step-shaped surface 1-1-2 extending in the axial direction, and the tail is provided with a step-shaped limiting groove 1-1-1 extending in the axial direction. The outer circumferential surface of the head of the right lobe 1-2 is a step-shaped surface 1-2-1 extending in the axial direction, and the tail is provided with a step-shaped limiting groove 2 1-2-2 extending in the axial direction. The left lobe 1-1 and the right lobe 1-2 are connected to form a whole, so that the step-shaped surface 1-1-2 and the step-shaped surface 2 1-2-1 are integrated into a step-shaped circumferential surface, thereby forming a step-shaped conical frustum at the head of the propelling support 1. The step-shaped limiting groove 1-1-1 and the step-shaped limiting groove 2 1-2-2 are integrated into a step-shaped cylindrical groove, and the step-shaped conical frustum and the step-shaped cylindrical groove can be docked and matched.

[0041] The body 4 is installed at the center of the head of the whole formed by the left lobe 1-1 and the right lobe 1-2. The central part of the head of the left lobe 1-1 is provided with a left lobe body placement cavity 1-1-4, and the central part of the head of the right lobe 1-2 is provided with a right lobe body placement cavity 1-2-4. The left lobe 1-1 and the right lobe 1-2 are connected to form a whole, so that the left lobe body placement cavity 1-1-4 and the right lobe body placement cavity 1-2-4 are integrated into a cylindrical cavity, and the body 4 is placed in the cylindrical cavity. The central part of the bottom surface of the step-shaped cylindrical groove is provided with a cylindrical body cavity, the head of the body 4 protrudes out of the cylindrical cavity, and when two adjacent propelling supports 1 are docked, the head of the latter body 4 is placed in the body cavity of the former body 4.

[0042] The above-mentioned assembly method of the self-separation propelling support for continuous launching and controllable launching interval comprises the following steps:

[0043] Step one: place a plurality of separation springs in the right lobe body separation spring positioning groove provided in the right lobe body of the propelling support, and combine the right lobe body with the left lobe body of the propelling support to form a whole propelling support;

[0044] Step two: place the fragments or projectiles in the cylindrical cavity at the head of the propelling support;

[0045] Step three: place a plurality of propelling supports in the launching tube. When assembling the propelling supports, the heads and tails of two adjacent propelling supports should be connected correspondingly, that is, the step-shaped conical frustum of one propelling support is docked with the step-shaped cylindrical groove of another propelling support, and the connection mode of the plurality of propelling supports is similar. The propelling supports are connected in sequence along the direction of action of the high-pressure hydrogen gas in the light gas gun.

[0046] Step four: after installing the plurality of propelling supports into the gun barrel, fire the light gas gun.

[0047] The high pressure hydrogen gas in the light gas gun directly acts on the bottom push surface, and pushes the sabot to move forward at high speed. When the sabot moves to the muzzle of the launch tube, the support force of the inner wall of the launch tube on the sabot is lost, and the separation spring arranged inside the sabot provides a force to promote the left and right petals of the sabot to separate. The sabot separates, and the projectile remains the original trajectory and is not affected by the separation of the sabot. A plurality of sabots are placed in the launch tube, and after the sabots are separated in turn, the continuous launching of the projectiles can be realized, and the interval of the launching time can also be controlled.

Claims

1. A self-separating sabot for continuous firing with controllable firing intervals, characterized in that: The launch tube (2) is used to place the sabots in sequence. The sabot (1) includes a left lobe (1-1), a right lobe (1-2), and a separation spring (3). The left lobe (1-1) and the right lobe (1-2) have the same structure and are mirror images of each other. The separation spring (3) is placed between them. The left lobe (1-1) and the right lobe (1-2) are attached to each other as a whole and placed in the launch tube (2). The outer peripheral walls of the two are respectively abutted against the inner wall of the launch tube (2), so that the separation spring (3) is pressed between the left lobe (1-1) and the right lobe (1-2). The projectile (4) is installed in the center of the head of the whole formed by the left lobe (1-1) and the right lobe (1-2). The head of the whole is a convex body and the tail is a concave body. The convex body and the concave body are matched in structure so that the head and tail of two adjacent sabots (1) in the launch tube (2) can be connected. The outer peripheral surface of the head of the left lobe (1-1) is a stepped curved surface 1 (1-1-2) extending along the axial direction, and the tail is provided with a stepped limiting groove 1 (1-1-1) extending along the axial direction. The outer peripheral surface of the head of the right lobe (1-2) is a stepped curved surface 2 (1-2-1) extending along the axial direction, and the tail is provided with a stepped limiting groove 2 (1-2-2) extending along the axial direction. The left lobe (1-1) and the right lobe (1-2) are connected into a whole, so that the stepped curved surface 1 (1-1-2) and the stepped curved surface 2 (1-2-1) are integrated into a stepped circular surface. The head of the spring support (1) forms a stepped truncated cone. The stepped limiting groove 1 (1-1-1) and the stepped limiting groove 2 (1-2-2) are integrated into a stepped columnar groove. The stepped truncated cone and the stepped columnar groove can be matched. The left lobe (1-1) has a left lobe projectile placement cavity (1-1-4) in the center of its head, and the right lobe (1-2) has a right lobe projectile placement cavity (1-2-4) in the center of its head. The left lobe (1-1) and the right lobe (1-2) are connected to form a whole, so that the left lobe projectile placement cavity (1-1-4) and the right lobe projectile placement cavity (1-2-4) are integrated into a cylindrical cavity, and the projectile (4) is placed in the cylindrical cavity.

2. The self-separating sabot for continuous firing with controllable firing interval as described in claim 1, characterized in that: A cylindrical projectile cavity is provided in the center of the bottom surface of the stepped columnar groove. The head of the projectile (4) protrudes out of the cylindrical cavity. When two adjacent projectiles (1) are docked, the head of the latter projectile (4) is placed in the projectile cavity of the former projectile (4).

3. The self-separating sabot for continuous firing with controllable firing interval as described in claim 1, characterized in that: The release spring (3) has a V-shaped structure.

4. The self-separating sabot for continuous firing with controllable firing interval as described in claim 3, characterized in that: Four left valve body separation spring positioning grooves (1-1-3) are provided parallel to each other on the contact surface of the left valve body (1-1) and the right valve body (1-2). The four left valve body separation spring positioning grooves (1-1-3) are arranged in pairs in an axially symmetrical manner. On the contact surface of the right valve body (1-2) and the left valve body (1-1), four right valve body separation spring positioning grooves (1-2-3) are provided parallel to each other in pairs in an axially symmetrical manner. The left valve body separation spring positioning grooves (1-1-3) and the right valve body separation spring positioning grooves (1-2-3) correspond one to one, and a separation spring (3) is pressed between each of them.

5. The self-separating sabot for continuous firing with controllable firing interval as described in claim 4, characterized in that: The four release springs (3) are placed in pairs, one in front of the other.

6. An assembly method for a self-separating sabot for continuous firing with controllable firing intervals as described in any one of claims 1 to 5, characterized in that... Includes the following steps: Step 1: Take a right lobe body (1-2) and install the separation spring (3) onto the right lobe body (1-2). Multiple separation springs (3) are installed at intervals and placed in pairs facing opposite directions. Step 2: Take another right lobe (1-2) and install the separation spring (3) in the same way as in Step 1; Step 3: Connect the two right lobe bodies (1-2) end to end, and place the projectile (4) at the corresponding positions of the two right lobe bodies (1-2). Step 4: Take two left lobe bodies (1-1) and install them onto the first and second right lobe bodies (1-2) respectively. Each separation spring (3) is close to the corresponding right lobe body (1-2) and left lobe body (1-1) respectively. The separation spring (3) is in a tightened state. The two projectiles (1) with the projectile body (4) are assembled. Step 5: Press the entire first sabot (1) and the second part of the sabot (1) into the launch tube (2), then take a right lobe (1-2), install the separation spring (3) and the projectile (4) in sequence, then take a left lobe (1-1) and connect it with the right lobe (1-2) to form a complete sabot (1) containing the projectile (4), and connect it with the tail of the second sabot (1) and press it into the launch tube (2); Step 6: Assemble multiple sabots (1) in sequence as in Step 5 and press them into the inner wall of the launch tube (2) to ensure that the sabots (1) are connected sequentially along the direction of the high-pressure hydrogen gas inside the light gas gun; Step 7: Multiple sabots (1) are installed in the launch tube (2), and the light gas gun is activated. The light gas gun provides a force to the sabots (1) so that they move along the launch tube (2) and the projectile (4) is separated from the sabots (1) during the movement.

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