CN112611273A

CN112611273A - Multi-fragment synchronous high-speed launching bullet holder and using method thereof

Info

Publication number: CN112611273A
Application number: CN202011367287.3A
Authority: CN
Inventors: 周欣伟; 陶强强; 任鹏
Original assignee: Jiangsu University of Science and Technology
Current assignee: Jiangsu University of Science and Technology
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-04-06
Anticipated expiration: 2040-11-27
Also published as: CN112611273B

Abstract

The invention discloses a multi-fragment synchronous high-speed launching bullet holder which comprises an opening and closing mechanism and a bullet holder base, wherein the opening and closing mechanism comprises a plurality of petal-shaped opening and closing members, one ends of the petal-shaped opening and closing members are circumferentially and sequentially distributed by taking one point as a center to form a semi-surrounding structure, and the other ends of the petal-shaped opening and closing members are respectively connected with the bullet holder base, so that a bullet body accommodating cavity is formed between the opening and closing mechanism and the bullet holder base. And methods of use thereof are provided. The invention can accommodate fragments with various shapes and projectiles with different shapes, thereby reducing the experiment times and being suitable for penetration simulation of explosive fragments and space fragments. Can avoid the projectile body to be blockked by petal form envelope body for the projectile body is whole to break away from the sabot and forward motion and hit the target body under the inertia effect, can reduce the experiment number of times, reduces experimental error. After the experiment is finished, the bullet support is taken back and repeated operation is carried out, and then the next experiment can be carried out continuously, so that the experiment cost is reduced.

Description

Multi-fragment synchronous high-speed launching bullet holder and using method thereof

Technical Field

The invention relates to the technical field of light gas gun launching collision test devices, in particular to a multi-fragment synchronous high-speed launching bullet holder and a using method thereof.

Background

The light gas gun is a loading device widely applied to high-speed and ultra-high-speed impact damage experiments. The projectile in the cannon barrel is acted by the gas of the instantaneous gas release chamber to obtain the initial impact velocity of 50-5000 m/s. In order to adapt to the sizes of the launched projectile body and fragments and avoid the projectile body from turning in the gun barrel, the projectile support is required to be used as a carrier for matching loading. The existing bullet holds in palm only is applicable to the body of shape rule at present, launches the bullet structure moreover and can only load a body.

The method can not realize simultaneous high-speed (speed of 300m/s-1000m/s) impact of multiple explosion fragments and ultrahigh-speed (speed of 1000m/s-5000m/s) impact of multiple space fragments, and can only simulate corresponding loading conditions by accumulating experimental results of multiple times. The experimental form not only greatly influences the effectiveness and the accuracy of experimental data, but also increases the experimental cost and the experimental time by several times, and has no economy and timeliness. Meanwhile, the bullet support needs to be separated from the bullet body before the bullet body impacts a target, the bullet support is mainly separated from the separator through impact, but the separation success rate of the existing bullet support is low due to the fact that the bullet body is in a full-constraint shape, and the success rate of experiments is greatly limited.

Disclosure of Invention

The purpose of the invention is as follows: in view of the above problems, the present invention provides a multi-fragment synchronous high-speed projectile support, which ensures the accuracy and reliability of the explosion simulation experiment result. And provides a using method of the bullet holder.

The technical scheme is as follows: the utility model provides a synchronous high-speed transmission bullet of many fragments holds in palm, includes mechanism, bullet support base that opens and shuts, it includes a plurality of lamellas form opening and shutting piece to open and shut the mechanism, and is a plurality of the one end of lamella form opening and shutting piece uses one point to distribute in proper order as central circumference and constitutes semi-enclosed structure, and is a plurality of the other end of lamella form opening and shutting piece respectively with bullet support pedestal connection makes open and shut the mechanism with bullet form a projectile body holding chamber between the support base.

Furthermore, the petal-shaped opening and closing piece comprises an enveloping body, a key, a connecting pin and an elastic piece, wherein the tail end of the enveloping body is connected with the key through the connecting pin, the middle lower part of the enveloping body is connected with the elastic support base, one end of the elastic piece is connected with the key, and the other end of the elastic piece is connected with the elastic support base.

Further, the envelope body includes lamella form body, transfer line, claw and detains one, the one end of transfer line with the bottom of lamella form body is fixed, and junction between them is equipped with claw detains one, claw detain one with the base connection is held in the palm to the bullet, U type groove has been seted up along its length direction to the other end of transfer line, the button is arranged in U type groove, set up the through-hole of two symmetries on two perpendicular walls in U type groove, the transfer line passes through the connecting pin is in through-hole department with the button is connected.

Furthermore, the key is a sheet structure with a polygonal outer contour, one side of the key is provided with a claw buckle II, the claw buckle II is connected with the elastic support base, one side of the claw buckle II adjacent to the claw buckle II is provided with a bulge, the other side of the claw buckle I is provided with a buckle I, the buckle I is connected with the elastic piece, the middle of the key is provided with a strip hole, and the connecting pin is sequentially inserted into the through hole and the strip hole.

Preferably, the elastic member is a spring.

Most preferably, the connecting pin is a cylindrical pin.

Further, the bullet holds in palm base 5 and includes base body 5-1, first connecting axle 5-2-3, second connecting axle 5-2-, the base body is the tubbiness structure, its blind end with the mechanism that opens and shuts is relative, a plurality of recesses have been seted up along circumference interval equipartition on the outer peripheral face of base body, every parallel respectively in the recess is equipped with one first connecting axle and one the second connecting axle, every in the recess first connecting axle is located the top of second connecting axle, first connecting axle the second connecting axle correspond respectively with one the lamella form is opened and is closed the piece and is connected, makes a plurality ofly the lamella form is opened and is closed the piece and is formed half and surround the structure.

Preferably, the number of the petal-shaped opening and closing pieces is 4-6.

A use method of a multi-fragment synchronous high-speed launching bullet holder comprises the following steps:

the method comprises the following steps: assembling the petal-shaped opening and closing piece, connecting the tail end of the enveloping body with the key through a connecting pin, and hooking one end of the elastic piece with the key;

step two: sequentially mounting a plurality of petal-shaped opening and closing members on a bullet holder base, connecting the other end of an elastic member with the bullet holder base, clamping the petal-shaped opening and closing members on the bullet holder base, and mutually attaching the side edges of adjacent petal-shaped opening and closing members to form a closed bullet body accommodating cavity;

step three: pressing the key to open the enveloping body, loading the elastomer required by the experiment into the elastomer accommodating cavity, loosening the key, closing the enveloping body under the action of the elastic piece to form a closed elastomer accommodating cavity again, and enveloping the elastomer required by the experiment together;

step four: the bullet is supported in a light gas gun, and the light gas gun is excited to carry out experiments.

Has the advantages that: compared with the prior art, the invention has the advantages that: the invention is applied to the first-level light gas cannon, because of the design of the projectile body containing cavity, fragments in various shapes and projectiles in different shapes can be contained, the launching of fragments with irregular shapes and trajectory tracks can be simulated, and the projectile body containing cavity can also be used for simultaneously launching projectiles with regular shapes, thereby reducing the experiment times and being suitable for penetration simulation of explosive fragments and space fragments. After the bullet holder is loaded into the light gas gun for launching, the bullet body accommodating cavity at the front end of the bullet holder can be opened, the angle can reach 120 degrees, the bullet body can be prevented from being blocked by the petal-shaped enveloping body, the bullet body can be completely separated from the bullet holder and moves forwards under the action of inertia to hit a target body, the experiment frequency can be reduced, and the experiment error is reduced. After the experiment, get back the repetitive operation with the bullet support and can continue to carry out the experiment next time to reduce the experiment expense, can make the experimental data more laminate actual conditions.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a front view of the key;

FIG. 5 is a top view of the envelope;

FIG. 6 is a side view of the envelope body;

FIG. 7 is a front view of the connecting pin;

FIG. 8 is a front view of the resilient member;

FIG. 9 is a front view of the base of the sabot;

FIG. 10 is a cross-sectional view B-B of FIG. 9;

fig. 11 is a schematic cross-sectional view of the present invention in combination with a sabot separator.

Detailed Description

The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.

The utility model provides a synchronous high-speed transmission bullet of many fragmentations holds in palm, as shown in figure 1 ~ 11, including opening and shutting the mechanism, bullet support base 2, the mechanism that opens and shuts includes a plurality of lamellas form opening and shutting piece 1, and the quantity of lamella form opening and shutting piece 1 is 4 ~ 6, and the one end of a plurality of lamellas form opening and shutting piece 1 uses one point to distribute in proper order as center circumference and constitutes half encirclement structure, and another tip of a plurality of lamellas form opening and shutting piece 1 is connected with bullet support base 2 respectively, makes and opens and shuts and form a projectile body holding chamber 3 between mechanism and the bullet support base 2.

The base 2 is held in palm to bullet includes base body 21, first connecting axle 22, second connecting axle 23, base body 21 is the tubbiness structure, its blind end is relative with the mechanism that opens and shuts, a plurality of recesses 211 have been seted up along circumference interval equipartition on the outer peripheral face of base body 21, parallel respectively is equipped with a first connecting axle 22 and a second connecting axle 23 in every recess 211, first connecting axle 22 in every recess 211 is located the top of second connecting axle 23, the quantity of recess 211 is the same with the quantity of lamella form division piece 1, first connecting axle 22, second connecting axle 23 corresponds respectively and is connected with a lamella form division piece 1, make a plurality of lamella form division pieces 1 form half-enclosed structure.

The petal-shaped opening and closing member 1 comprises an enveloping body 11, a key 12, a connecting pin 13 and an elastic member 14, wherein the connecting pin 13 is a cylindrical pin, the elastic member 14 is a spring, the enveloping body 11 comprises a petal-shaped body 111, a transmission rod 112 and a first claw buckle 113, one end of the transmission rod 112 is fixed with the bottom of the petal-shaped body 111, the first claw buckle 113 is arranged at the joint of the two parts, the first claw buckle 113 is connected with a first connecting shaft 22, the other end of the transmission rod 112 is provided with a U-shaped groove 114 along the length direction of the other end, the key 12 is arranged in the U-shaped groove 114, two symmetrical through holes 115 are formed in two vertical walls of the U-shaped groove 114, a long hole 124 is formed in the middle of the key 12, and the connecting pin 13 is sequentially inserted into the through holes 115 and the long hole 124, so that the transmission rod 112 is connected.

The key 12 is a sheet structure with a polygonal outer contour, one side of the key 12 is provided with a second claw buckle 121, the second claw buckle 121 is connected with the second connecting shaft 23 of the bullet holder base 2, one side of the key 12 adjacent to the second claw buckle 121 is provided with a bulge 122, the other side of the key 12 is provided with a first buckle 123, the first buckle 123 is connected with one end of the elastic element 14, the other end of the elastic element 14 is connected with a second buckle 212 on the outer side wall of the bullet holder base 2 in a corresponding groove 211, and the petal-shaped opening and closing elements 1 are in a normally closed state.

The bullet holder base 2 is used as an air loading surface, and the corresponding enveloping body 11 is opened and closed by pressing the protrusion 122 on the key 12, and the opening angle of the enveloping body 11 can reach 120 degrees.

The use method of the multi-fragment synchronous high-speed launching bullet holder is characterized by comprising the following steps:

the method comprises the following steps: assembling the petal-shaped opening and closing member 1, aligning the tail end of the envelope body 11 with the strip hole 124 of the key 12, screwing the connecting pin 13 into the through hole 115 at the tail end of the envelope body 11 through the strip hole 124 on the key 12, and hooking the claw buckle on the key 12 by one end of the elastic member 14;

step two: sequentially mounting a plurality of loaded petal-shaped opening and closing members 1 on a bullet holder base 2, enabling the other end of an elastic member 14 to be connected with the bullet holder base 2, clamping a first claw buckle 113 on a first connecting shaft 22, clamping a second claw buckle 121 on a second connecting shaft 23 of the bullet holder base 2, and mutually attaching the side edges of the adjacent petal-shaped opening and closing members 1 to form a closed bullet body accommodating cavity 3;

step three: pressing the key 12 to open the enveloping body 11, loading the elastomer required by the experiment into the elastomer accommodating cavity 3, loosening the key 12, closing the enveloping body 11 under the action of the elastic piece 14 to form the closed elastomer accommodating cavity 3 again, and enveloping the elastomer required by the experiment together;

step four: placing the assembled bullet holder in a light gas gun, wherein the bullet holder carrying the bullet body has initial impact speed under the pushing action of gas, a bullet holder separator 4 is fixed on an impact chamber 5, a button 12 is extruded by the inner wall of the bullet holder separator 4 when the bullet holder passes through the bullet holder separator 4, the bullet holder is left on the bullet holder separator 4, a bullet body accommodating cavity 3 at the front end of the bullet holder can be opened at the moment, the angle can reach 120 degrees, and the bullet body in the bullet body accommodating cavity 3 flies out;

step five: and after the experiment is finished, the bullet holder is taken back to repeat the steps to carry out the next experiment.

The enveloping body 11 at the front end of the bullet holder and the closed end of the bullet holder base 2 form a closed bullet containing cavity 3 which can contain bullets needed by experiments. The sabot loaded with projectiles occurs via a light gas gun, and when passing through the sabot separator 4, the key 12 contacts the inner wall of the sabot separator 4, and as the sabot moves further, the protrusion 122 on the key 12 is pressed and rotates about the second connecting shaft 23, at this time the elastic member 14 is compressed, the connecting pin 13 slides in the elongated hole 124 in the key 12, and drives the envelope 11 to rotate about the first connecting shaft 22 and open. At this time, the projectile flies out of the projectile accommodation chamber 3 and impacts on the target body. The bullet holds in the palm is left over in bullet holds in the palm separator 4, and elastic component 14 resumes initial condition when taking out the bullet and holding in the palm for envelope body 11 resets and returns closed state, can carry out next set of experiment after the loading.

Claims

1. The utility model provides a synchronous high-speed transmission bullet of many fragments holds in palm which characterized in that: including opening and shutting mechanism, bullet support base, it includes a plurality of lamellate opening and shutting pieces to open and shut the mechanism, and is a plurality of the one end of lamella form opening and shutting piece uses one point to distribute in proper order as central circumference and constitutes half surrounding structure, and is a plurality of the other end of lamella form opening and shutting piece respectively with bullet support pedestal connection makes opening and shutting mechanism with form an elastomer holding chamber between the bullet support base.

2. The multi-fragment synchronous high-speed launching sabot as claimed in claim 1, further comprising: the petal-shaped opening and closing piece comprises an enveloping body, a key, a connecting pin and an elastic piece, wherein the tail end of the enveloping body is connected with the key through the connecting pin, the middle lower part of the enveloping body is connected with the elastic support base, one end of the elastic piece is connected with the key, and the other end of the elastic piece is connected with the elastic support base.

3. The multi-fragment synchronous high-speed launching sabot as recited in claim 2, further comprising: the envelope body includes lamella form body, transfer line, claw and detains one, the one end of transfer line with the bottom of lamella form body is fixed, and junction between them is equipped with claw is detained one, claw detain one with the bullet holds in the palm pedestal connection, U type groove has been seted up along its length direction to the other end of transfer line, the button is arranged in the U type groove, set up the through-hole of two symmetries on two perpendicular walls in U type groove, the transfer line passes through the connecting pin is in through-hole department with the button is connected.

4. The multi-fragment synchronous high-speed launching sabot as recited in claim 3, further comprising: the key is of a sheet structure with a polygonal outer contour, one side edge of the key is provided with a claw buckle II, the claw buckle II is connected with the elastic support base, one side edge of the claw buckle II, which is adjacent to the claw buckle, is provided with a bulge, the other side edge of the claw buckle I is provided with a buckle I, the buckle I is connected with the elastic piece, the middle of the key is provided with a strip hole, and the connecting pin is sequentially inserted into the through hole and the strip hole.

5. The multi-fragment synchronous high-speed launching sabot as recited in claim 2, further comprising: the elastic piece is a spring.

6. The multi-fragment synchronous high-speed launching sabot as recited in claim 2, further comprising: the connecting pin is a cylindrical pin.

7. The multi-fragment synchronous high-speed launching sabot as claimed in claim 1, further comprising: the base includes base body, first connecting axle, second connecting axle is held in the palm to the bullet, the base body is the tubbiness structure, its blind end with it is relative to open and shut the mechanism, a plurality of recesses have been seted up along circumference interval equipartition on the outer peripheral face of base body, every respectively the parallel is equipped with one in the recess first connecting axle and one the second connecting axle, every in the recess first connecting axle is located the top of second connecting axle, first connecting axle the second connecting axle corresponds respectively with one the lamella form is opened and is closed the piece and is connected, makes a plurality ofly the lamella form is opened and is closed the piece and form half surrounding structure.

8. The multi-fragment synchronous high-speed launching sabot as claimed in claim 1, further comprising: the number of the petal-shaped opening and closing pieces is 4-6.

9. A use method of the multi-fragment synchronous high-speed launching sabot according to any one of claims 2 to 6, characterized by comprising the following steps: