阅读说明：本技术 一种消除装药底隙的弹底引信与弹体连接结构 (Bullet bottom fuze and bullet body connecting structure for eliminating charge bottom gap ) 是由 王雨时 邹陈来 王光宇 闻泉 张志彪 于 2020-07-03 设计创作，主要内容包括：发明公开了一种消除装药底隙的弹底引信与弹体连接结构,包括弹体、炸药装药、压螺、弹底引信、纸垫片和垫圈。在炸药装药与弹底引信之间增加压螺,通过旋拧压螺保证炸药装药的轴向定位。压螺与炸药装药之间通过压紧的纸垫片接触,消除了底隙带来的安全性隐患。发射时,压螺直接承受炸药装药产生的后坐力,避免该后坐力传递到弹底引信,使弹底引信的发射强度更容易得到保证。弹底引信传爆管采用聚能输出结构,增强传爆管的起爆能力。靠近弹底引信端的压螺中心处设有一定深度的盲孔,在保证压螺发射强度的同时,确保压螺不影响聚能传爆管形成的射流可靠起爆战斗部装药。压螺下端面与弹底引信之间增加密封垫圈,进一步防止高温高压气体窜入。(The invention discloses a bullet bottom fuse and bullet body connecting structure for eliminating a charge bottom gap. And a pressing screw is added between the explosive charge and the bullet bottom fuse, and the axial positioning of the explosive charge is ensured by screwing the pressing screw. The pressing screw is contacted with the explosive charge through a compressed paper gasket, so that potential safety hazards caused by a bottom gap are eliminated. During the transmission, the pressure spiral shell directly bears the recoil that explosive powder charge produced, avoids this recoil to transmit bullet end fuze, makes the firing strength of bullet end fuze obtain guaranteeing more easily. The bullet bottom detonator detonating tube adopts an energy-gathering output structure, so that the detonating capacity of the detonating tube is enhanced. The blind hole with a certain depth is arranged at the center of the pressing screw close to the end of the bullet bottom fuse, so that the emission intensity of the pressing screw is ensured, and meanwhile, the reliable initiation of the warhead charge by the jet flow formed by the energy-gathered booster pipe is not influenced by the pressing screw. And a sealing washer is added between the lower end face of the pressing screw and the bullet bottom fuse, so that high-temperature and high-pressure gas is further prevented from entering.)

1. The utility model provides an eliminate bullet end fuze and body connection structure of filling powder crack, includes body (1), explosive charge (2), bullet end fuze (4), body (1) bottom opening, and the open end is equipped with one section internal thread, explosive charge (2) adorn in body (1), bullet end fuze (4) threaded connection in body (1) bottom opening, its characterized in that still includes and presses spiral shell (3) and paper gasket (6), press spiral shell (3) set up through threaded connection's mode in body (1) bottom opening, press spiral shell (3) to be located explosive charge (2) rear end, press spiral shell (3) will paper gasket (6) compress tightly in between explosive charge (2) and the pressure spiral shell (3), thereby eliminate the axial positioning clearance of explosive charge (2).

2. The bottom detonator and body connecting structure for eliminating the charge bottom clearance according to claim 1, wherein the bottom detonator (4) is arranged at the bottom of the body (1) and at the rear end of the pressing screw (3), the lower end surface of the pressing screw (3) is provided with a first blind hole, and the output end of the bottom detonator (4) extends into the first blind hole.

3. The bottom detonator to body connection for eliminating the bottom clearance of the explosive charge according to claim 2, wherein the booster tube at the output end of the bottom detonator (4) comprises a shaped charge cover (41) and a booster charge (42), and the tapered opening of the shaped charge cover (41) faces upwards to form a shaped charge structure with the booster charge (42) towards the explosive charge (2).

4. The structure for connecting the bottom detonator with the projectile body for eliminating the bottom clearance of the projectile charge of claim 2, wherein the bottom of the first blind hole at the lower end of the pressing screw (3) is further provided with a second blind hole.

5. The bottom-of-bullet fuze-to-body connection structure for eliminating bottom-loading clearance according to claim 4, wherein the second blind hole is arranged coaxially with the first blind hole.

6. The bottom-of-bullet fuze-to-body connection structure for eliminating bottom-clearance charge according to any one of claims 1-5, characterized in that the upper end surface of the pressing screw (3) is higher than the tail end of the internal thread of the bullet body (1).

7. The bottom-loading gap eliminating bullet detonator and body connecting structure according to any one of claims 1 to 5, further comprising an annular gasket (5), wherein the annular gasket (5) is compressed between the lower end face of the pressing screw (3) and the upper end face of the bottom-loading fuse (4).

8. Bottom-of-bullet fuze and body attachment to eliminate bottom-clearance charges according to any of the claims 1-5, characterized in that the paper spacer (6) comprises one or more pieces.

Technical Field

The invention belongs to the general technical field of warhead, and particularly relates to a bullet bottom fuze and bullet body connecting structure for eliminating a charge bottom gap.

Background

The detonator at the bottom of the bullet is screwed down at the bottom of the bullet body through threaded connection, an irregular interface exists between the detonator and the explosive charge in front of the detonator, and the explosive charge cannot be completely and reliably supported, so that an axial structural positioning gap is formed in the explosive charge in the day, namely a charge bottom gap is formed, and hidden danger is brought to the launching safety. In addition, the bullet end fuze self launching strength is difficult to guarantee, and the support of explosive charge by the bullet end fuze is possible to cause the structure damage of the bullet end fuze, a charge bottom gap can be formed, and the launching safety hidden danger is also generated.

Disclosure of Invention

In order to solve the problems, the invention provides a connecting structure of a bullet bottom fuse and a bullet body, which can eliminate a charge bottom gap.

The technical solution for achieving the above purpose is as follows:

the utility model provides an eliminate bullet end fuze and body connection structure of filling powder crack, includes bullet, explosive charge, bullet end fuze, bullet bottom opening, and the open end is equipped with one section internal thread, the explosive charge adorn in the bullet, bullet end fuze threaded connection in the bullet bottom opening, still including pressing spiral shell and paper gasket, press the spiral shell through threaded connection's mode set up in the bullet bottom opening, press the spiral shell to be located explosive charge rear end, press the spiral shell will the paper gasket compress tightly in the explosive charge with press between the spiral shell, thereby eliminate the axial positioning clearance of explosive charge.

Furthermore, the bullet bottom fuse is arranged at the bottom of the bullet body and at the rear end of the pressing screw, a first blind hole is formed in the surface of the lower end of the pressing screw, and the output end of the bullet bottom fuse extends into the first blind hole.

Furthermore, the booster tube at the output end of the detonator at the bottom of the bullet comprises a shaped charge cover and booster powder, wherein a conical opening of the shaped charge cover faces upwards, and the shaped charge cover and the booster powder form an energy-gathered charge structure facing the explosive charge direction.

Furthermore, the bottom of the first blind hole at the lower end of the pressing screw is also provided with a second blind hole.

Further, the second blind hole is arranged coaxially with the first blind hole.

Further, the upper end surface of the pressing screw is higher than the tail end of the tail of the internal thread of the projectile body.

Furthermore, the elastic bottom fuse further comprises an annular gasket, and the annular gasket is tightly pressed between the lower end face of the pressing screw and the upper end face of the elastic bottom fuse.

Further, the paper mat comprises one or more sheets.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the pressing screw and the paper gasket are additionally arranged at the bottom of the bomb body, and the paper gasket is tightly pressed between the explosive charge and the pressing screw through the pressing screw, so that the axial positioning gap of the explosive charge is eliminated, the charge bottom gap of the warhead charge is structurally eliminated, meanwhile, the recoil generated by the explosive charge is prevented from being transmitted to the bomb bottom fuze, and the launching safety of the ammunition is ensured;

(2) a coaxial second blind hole is also formed in the center of the bottom of the first blind hole at the lower end of the pressing screw, so that the thickness of the pressing screw in the output direction of the liner is reduced, and the loss of the pressing screw to the output energy (energy-gathered jet) of the bullet bottom fuse 4 is reduced on the premise of ensuring the emission intensity of the pressing screw;

(3) the upper plane of the pressing screw is higher than the tail end of the internal thread of the projectile body, so that explosive particles of explosive loaded explosive are prevented from entering the internal thread annular groove of the projectile body, and the safety of explosive loading and launching is guaranteed.

Drawings

Fig. 1 is a cross-sectional view of a bottom charge clearance elimination bullet detonator and body coupling structure of the present invention.

In the figure: 1 is an elastic body, 2 is explosive charge, 3 is a pressing screw, 4 is a bullet bottom fuse, 41 is a liner, 42 is booster, 5 is a gasket and 6 is a paper gasket.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

A bullet bottom fuse and bullet body connecting structure for eliminating a charge bottom gap at least comprises a bullet body 1, an explosive charge 2, a pressing screw 3, a bullet bottom fuse 4 and a paper gasket 6. Wherein the bottom end of the projectile body 1 is opened, and the opening end is provided with a section of internal thread. The explosive charge 2 is loaded from the bottom of the projectile 1. The pressing screw 3 is basically in a cylindrical shape, a blind hole is formed in the center of the lower end of the pressing screw, and a section of external thread is formed in the outer cylindrical surface of the pressing screw. The pressing screw 3 is arranged at the bottom of the bomb body 1 and at the rear end of the explosive charge 2 in a threaded connection mode, and the paper gaskets 6 are tightly pressed between the explosive charge 2 and the pressing screw 3, so that an axial positioning gap (a structure bottom gap) of the explosive charge 2 is eliminated.

Furthermore, the bullet bottom fuse 4 is arranged at the bottom of the bullet body 1 and at the rear end of the pressing screw 3, and the output end part of the bullet bottom fuse extends into the first blind hole at the lower end of the pressing screw 3. The booster at the output end of the bullet bottom fuse 4 at least comprises a liner 41 and a booster 42. The liner 41 has a conical opening facing upwards and forms a shaped charge structure with the booster 42 facing the direction of the explosive charge 2.

Further, the upper plane of the pressing screw 3 is higher than the tail end of the internal thread ending of the projectile body 1, so that explosive particles of the explosive charge 2 are prevented from entering the internal thread annular groove of the projectile body 1, and the charge launching safety is further influenced.

Furthermore, a coaxial second blind hole is further formed in the center of the bottom of the first blind hole in the lower end of the pressing screw 3, so that the thickness of the pressing screw 3 in the output direction of the liner 41 is reduced, and the loss of the pressing screw 3 to the output energy (energy-gathered jet) of the bullet bottom fuse 4 is reduced on the premise of ensuring the emission intensity of the pressing screw 3.

Further, the bottom end of the projectile body 1 is also provided with an annular gasket 5. The gasket 5 is tightly pressed between the lower end face of the pressing screw 3 and the bullet bottom fuse 4, plays a role in strengthening sealing, and further prevents high-temperature and high-pressure gas from entering.

The invention provides a bullet bottom fuze and bullet body connecting structure for eliminating a charge bottom gap, a pressing screw 3 is added between an explosive charge 2 and a bullet bottom fuze 4, and the axial positioning of the explosive charge 2 is ensured by screwing the pressing screw 3. The pressing screw 3 is contacted with the explosive charge 2 through the compressed paper gasket 6, so that potential safety hazards caused by bottom clearance are eliminated. During the transmission, the pressure snail 3 directly bears the recoil generated by explosive charging 2, and the recoil is prevented from being transmitted to the bullet bottom fuse 4, so that the transmission strength of the bullet bottom fuse 4 is ensured more easily. The bullet bottom detonator booster adopts an energy-gathering output structure, and a blind hole with a certain depth is formed in the center of the pressing screw, so that the reliable detonation of the warhead charge by jet flow formed by the energy-gathering detonator is not influenced while the emission intensity of the pressing screw is ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.