阅读说明：本技术 一种输入端面齐平的引信用长延期针刺爆炸元件 (Long-delay acupuncture explosion element with flush input end face for fuse ) 是由 王雨时 李俊鸿 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种输入端面齐平的引信用长延期针刺爆炸元件,包括圆筒形的管壳,以及同轴设置在管壳内的加强帽、针刺药、第一延期药、第二延期药、输出药、底帽和若干个垫圈；位于输入端的加强帽顶部外端面与管壳输入端齐平,即针刺端面空位深度是0,从而确保与引信发火机构接口界面友好,利于击针及其刺戳运动设计。而内部装药从输出端逐次装压,装药高度累积误差在输出端底面,最后通过垫圈调整并辅以漆或胶,实现装药输出端底面与管壳输出端端面基本齐平。该结构不改变爆炸元件的外形尺寸。(The invention discloses a long delay acupuncture explosion element for a fuse with flush input end face, which comprises a cylindrical tube shell, and a reinforcing cap, acupuncture chemicals, a first delay chemical, a second delay chemical, output chemicals, a bottom cap and a plurality of gaskets which are coaxially arranged in the tube shell; the outer end face of the top of the reinforcing cap at the input end is flush with the input end of the tube shell, namely the depth of a needle puncturing end face vacancy is 0, so that the interface with the fuze ignition mechanism is friendly, and the design of a firing pin and a puncture motion of the firing pin is facilitated. And the inner powder charge is successively loaded and pressed from the output end, the accumulated error of the powder charge height is on the bottom surface of the output end, and finally the bottom surface of the powder charge output end is basically flush with the end surface of the output end of the pipe shell by adjusting through a gasket and assisting with paint or glue. The structure does not change the external dimensions of the explosive element.)

1. A long-delay needle-punched explosive element for a fuse with flush input end face is characterized in that: comprises a cylindrical tube shell (1), and a reinforcing cap (2), a puncture medicine (4), a first delay medicine (5), a second delay medicine (6), an output medicine (7), a bottom cap (3) and a plurality of gaskets (8) which are coaxially arranged in the tube shell (1); set gradually acupuncture medicine (4) from front to back, first delay medicine (5), second delay medicine (6), output medicine (7), strengthen cap (2) as the input, the top surface of strengthening cap (2) flushes with the top surface of tube (1), the processing of making a thin is done at the input center, be convenient for acupuncture arouse, the front end of whole acupuncture medicine (4) and first delay medicine (5) is filled in strengthening cap (2), the bottom of whole output medicine (7) and second delay medicine (6) is filled in end cap (3), the vacancy between the bottom surface of end cap (3) and tube (1) output terminal surface stacks a plurality of packing rings (8), packing ring (8) bottom surface that is located the bottom flushes with the output terminal surface of tube (1).

2. A long delay needle blast element for fuzes with flush input end face according to claim 1, characterized in that: the quantity of the gaskets (8) is adjusted according to the vacancy between the bottom surface of the bottom cap (3) and the end surface of the output end of the tube shell (1), and the final vacancy is filled by sealing paint or sealant.

3. A long delay needle blast element for fuzes with flush input end face according to claims 1 and 2, characterized in that: the thickness of the gasket (8) is not exactly the same.

4. A long delay needle blast element for fuzes with flush input end face according to claim 1, characterized in that: when the bottom charging structure is used for a fire cap, the bottom cap (3) and the bottom charging structure are flat-bottom structures.

5. A long delay needle blast element for fuzes with flush input end face according to claim 1, characterized in that: when the detonator is used for a detonator, the bottom cap (3) and the bottom charging structure are of energy-gathering pit structures.

Technical Field

The invention belongs to the technology of fuse explosion elements, and particularly relates to a long-delay acupuncture explosion element for a fuse with a flush input end face.

Background

At present, the long-delay acupuncture explosive element is loaded and charged from an input end in a successive pressing mode, and the acupuncture end face position is a closed ring in the pressing process, so that the size of the end face position of the input end, namely the depth of an empty position of the input end, is greatly dispersed. For example, a long delay tube with a length of 25 mm and a delay of 12 s, the depth of the vacancy (the dimension in FIG. 1)A) The maximum spread can reach 2 mm, which causes the firing pin in the fuze and the pricking movement design thereof to occupy larger axial space, and influences the overall optimization design of the fuze.

Disclosure of Invention

The invention aims to provide a long-delay acupuncture explosion element for a fuse, the input end face of which is flush, which is friendly to interface with a fuse interface, is beneficial to reducing occupied axial space of the fuse and realizes overall optimized design.

The technical solution for realizing the purpose of the invention is as follows: a long delay acupuncture explosion element for a fuse with flush input end face comprises a cylindrical tube shell, and a reinforcing cap, acupuncture powder, first delay powder, second delay powder, output powder, a bottom cap and a plurality of gaskets which are coaxially arranged in the tube shell; the bottom cap is characterized in that acupuncture drugs, first delay drugs, second delay drugs and output drugs are sequentially arranged from front to back, the reinforcing cap serves as an input end, the top surface of the reinforcing cap is flush with the top surface of the tube shell, thinning treatment is carried out at the center of the input end to facilitate acupuncture excitation, the front ends of all the acupuncture drugs and the first delay drugs are filled in the reinforcing cap, the bottom ends of all the output drugs and the second delay drugs are filled in the bottom cap, a plurality of gaskets are stacked in vacant positions between the bottom surface of the bottom cap and the end surface of the output end of the tube shell, and the bottom surface of the gasket located at the lowest position is flush with the end surface of the output end of the tube shell.

Furthermore, the quantity of the gaskets is adjusted according to the vacancy between the bottom surface of the bottom cap and the end surface of the output end of the tube shell, and the final vacancy is filled by sealing paint or sealant.

Further, the gasket thicknesses are not all the same.

Further, when the bottom cap is used for the fire cap, the bottom cap is of a flat bottom structure.

Further, when the energy-gathering cap is used for a detonator, the bottom cap is of an energy-gathering pit structure.

Compared with the prior art, the invention has the beneficial effects that: the interface of the firing mechanism of the fuse is friendly, the firing pin and the stab motion design thereof are facilitated, the axial space occupied by the firing mechanism of the fuse can be reduced, and the optimized design of the whole fuse is realized.

Drawings

Fig. 1 shows a prior art priming long delay needle-punched explosive element.

Fig. 2 is an axial cross-sectional view of a first embodiment of a long delay needle-punched explosive element for a fuze with flush input end face.

Fig. 3 is an axial cross-sectional view of a second embodiment of a long delay needle-punched explosive element for fuzes with flush inlet faces.

In the figure, 1 is a tube shell, 2 is a reinforcing cap, 3 is a bottom cap, 4 is a needle-punching medicine, 5 is a first delay medicine, 6 is a second delay medicine, 7 is an output medicine, and 8 is a gasket.

Detailed Description

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

Example 1

With reference to fig. 2, the long delay acupuncture explosion element for fuzes with flush input end surfaces, which is used as a fire cap, comprises a cylindrical tube shell 1, and a reinforcing cap 2, an acupuncture chemical 4, a first delay chemical 5, a second delay chemical 6, an output chemical 7, a bottom cap 3 and a plurality of gaskets 8 which are coaxially arranged in the tube shell 1; the acupuncture medicine 4, the first delay medicine 5, the second delay medicine 6 and the output medicine 7 (flame expanding medicine and/or initiating medicine) are sequentially arranged from front to back, the reinforcing cap 2 serves as an input end, the top surface of the reinforcing cap 2 is flush with the top surface of the tube shell 1, thinning treatment is conducted in the center of the input end, acupuncture excitation is facilitated, the front ends of all the acupuncture medicines 4 and the first delay medicine 5 are filled in the reinforcing cap 2, the bottom ends of all the output medicines 7 and the second delay medicine 6 are filled in the bottom cap 3, a plurality of gaskets 8 are stacked in a vacancy between the bottom surface of the bottom cap 3 and the end face of the output end of the tube shell 1, and the bottom surface of the gasket 8 located at the lowest position is flush with the end face of the output end of the tube shell 1.

Furthermore, the number of the gaskets 8 is adjusted according to the vacancy between the bottom surface of the bottom cap 3 and the end surface of the output end of the tube shell 1, and the final vacancy is filled by sealing paint or sealant. The thickness of the gasket 8 is not completely the same and is divided into thick and thin so as to be beneficial to finely filling the depth of the vacancy and further realize the leveling.

When the delay elements 5 and 6 are pressed, the reinforcing cap 2 is radially expanded by the piercing of the medicament 4 and is pressed against the inner wall of the housing 1 without falling out of the housing 1. In a similar way, when pressing end cap 3, through output medicine 7, also can make end cap 3 radial expansion, crowd on 1 inner wall of tube to guarantee can not deviate from in tube 1. The reinforcing cap can be fixed at the joint of the reinforcing cap and the outer end face of the tube shell by auxiliary glue or paint. After the fuse is filled, the reinforcing cap 2, the gasket 8 and the bottom cap 3 can not fall off under the constraint of a fuse structural member.

When the bottom cap is used for a fire cap, the bottom cap 3 and the bottom charging structure (the joint of the bottom surface of the output medicine 7 and the inner wall surface of the bottom cap 3) are flat-bottom structures.

The charging size error is accumulated at the output end of the fire cap, and the output power of the fire cap is not influenced. And the washer at the output end of the fire cap has a central hole, so that the flame output of the fire cap is not influenced. And the gasket at the output end of the fire cap is flush or basically flush with the end surface of the tube shell, so that the fire cap charging structure can not be damaged by loose displacement under the impact overload action of launching, falling and the like.

Example 2

With reference to fig. 3, the long delay needle-punched blasting element for fuzes with flush input end surfaces, which is used as a detonator, comprises a cylindrical tube shell 1, and a reinforcing cap 2, a needle-punched powder 4, a first delay powder 5, a second delay powder 6, an output powder 7, a bottom cap 3 and a plurality of gaskets 8 which are coaxially arranged in the tube shell 1; the acupuncture medicine 4, the first delay powder 5, the second delay powder 6 and the output powder 7 (initiating powder or initiating powder and high explosive) are sequentially arranged from front to back, the reinforcing cap 2 serves as an input end, the top surface of the reinforcing cap 2 is flush with the top surface of the tube shell 1, the center of the input end is thinned, acupuncture excitation is facilitated, the front ends of all the acupuncture medicines 4 and the first delay powder 5 are filled in the reinforcing cap 2, the bottom ends of all the output powder 7 and the second delay powder 6 are filled in the bottom cap 3, a plurality of gaskets 8 are stacked in a vacant position between the bottom surface of the bottom cap 3 and the end surface of the output end of the tube shell 1, and the bottom surface of the gasket 8 located at the lowest position is flush with the end surface of the output end of the tube shell 1.

Furthermore, the number of the gaskets 8 is adjusted according to the vacancy between the bottom surface of the bottom cap 3 and the end surface of the output end of the tube shell 1, and the final vacancy is filled by sealing paint or sealant. The thickness of the gasket 8 is not completely the same and is divided into thick and thin so as to be beneficial to finely filling the depth of the vacancy and further realize the leveling.

When the delay elements 5 and 6 are pressed, the reinforcing cap 2 is radially expanded by the piercing of the medicament 4 and is pressed against the inner wall of the housing 1 without falling out of the housing 1. In a similar way, when pressing end cap 3, through output medicine 7, also can make end cap 3 radial expansion, crowd on 1 inner wall of tube to guarantee can not deviate from in tube 1. The reinforcing cap can be fixed at the joint of the reinforcing cap and the outer end face of the tube shell by auxiliary glue or paint. After the fuse is filled, the reinforcing cap 2, the gasket 8 and the bottom cap 3 can not fall off under the constraint of a fuse structural member.

When the detonator is used for a detonator, the bottom cap 3 and the bottom charging structure (the joint of the bottom surface of the output explosive 7 and the inner wall surface of the bottom cap 3) are of energy-gathering pit structures.

The charging size error is accumulated at the output end of the detonator adopting the energy-gathering nest structure, and the output power of the detonator cannot be obviously influenced. And the gasket at the output end of the detonator has a central hole, so that the jet flow output of the detonator is not influenced. And the output end gasket of the detonator is flush or basically flush with the end surface of the tube shell, so that the detonator charging structure can not be subjected to loose type displacement damage under the impact overload action of launching, falling and the like.

The difficulty of the invention is that the traditional cognition always focuses on the axial position size precision of the output end of the explosion element without distinction. In fact, the firing reliability of the needle input end of the needle-punched explosive element is closely related to the design of the needle-punched firing mechanism of the matched fuse, which relates to the two specialties of the fuse and the initiating explosive device, so that the firing reliability is not easy to be imagined. In addition, the firing end of the firing pin is assembled before the output end is assembled during manufacturing, which is different from the traditional charging structure, the safety is not reduced but improved (only the acupuncture medicine is not high explosive when the acupuncture medicine is assembled and pressed, and the intrinsic safety is realized because the power is small), and the idea is not easily imagined.

In addition, there are some difficulties and constraints in improvement, such as not increasing the cost significantly, not decreasing the reliability, not increasing the overall size, and requiring higher production efficiency and quality assurance.