阅读说明：本技术 一种电磁机械保险式固体火箭发动机点火器 (Electromagnetic mechanical safety type solid rocket engine igniter ) 是由 余文锋 孙子杰 江海涛 赵胜海 孙伟星 孟卫兵 袁晓昱 张�林 邓波 马少杰 王 于 2019-11-19 设计创作，主要内容包括：本发明属于固体火箭发动机技术领域,涉及一种电磁机械保险式固体火箭发动机点火器；本发明将一套电磁机械保险置于点火器中发火管与点火药盒之间的燃气传火通道中,通过电信号控制电磁机械保险来控制燃气传火通道的打开和关闭,不但实现了点火器安全控制点火控制,保证了发火系统一旦误发火时,也不致引起整个点火装置点火,大大提高了安全系数,降低安全事故的可能性,而且进一步实现了机械保险装置的电气化控制,更加的安全便捷。(The invention belongs to the technical field of solid rocket engines, and relates to an electromagnetic mechanical safety type solid rocket engine igniter; the invention arranges a set of electromagnetic mechanical fuse in the gas ignition channel between the ignition tube and the ignition medicine box in the igniter, controls the opening and closing of the gas ignition channel by controlling the electromagnetic mechanical fuse through electric signals, not only realizes the safe ignition control of the igniter, but also ensures that the whole ignition device is not ignited once the ignition system is ignited by mistake, greatly improves the safety factor, reduces the possibility of safety accidents, further realizes the electrification control of the mechanical fuse device, and is safer and more convenient.)

1. An electromagnetic mechanical fuse type solid rocket engine igniter is characterized in that a set of electromagnetic mechanical fuse is arranged in a gas fire transfer channel between a fire tube and an ignition medicine box in the igniter, and the opening and the closing of the gas fire transfer channel are controlled by controlling the electromagnetic mechanical fuse through an electric signal.

2. The igniter of claim 1, wherein the electromagnetic mechanical fuse is mainly composed of an electromagnetic chuck (1), an electromagnetic chuck power supply cable (3), a gas fire transfer passage valve (11) and a spring (12); the electromagnetic mechanical fuse is arranged in the connecting seat (2), the electromagnetic sucker (1) and the connecting seat (2) are fixed in position, one end of the spring (12) is fixed on the connecting seat (2), the other end of the spring is fixed on the gas passage valve (11), the gas passage valve (11) can reciprocate in the connecting seat (2) under the action of the electromagnetic sucker (1) and the spring (12), and the gas fire transfer passage (10) is arranged in the gas passage valve (11).

3. The electromagnetic mechanical fuse type solid rocket engine igniter as claimed in claim 2, wherein said electromagnetic chuck power supply cable (3) supplies power to said electromagnetic chuck (1).

4. The igniter of claim 1, wherein the ignition tube is formed as a whole by an ignition pressing screw (4), an ignition cable (5), a bearing plate (6), an ignition head (7), an ignition powder (8) and an ignition hole (9), the ignition pressing screw (4) is in threaded connection with the connecting base (2), the ignition cable (5) penetrates through the bearing plate (6) to be connected with the ignition head (7), and the ignition powder (8) is wrapped on the ignition head (7).

5. The electromagnetically mechanically fused solid rocket engine igniter as claimed in claim 4, wherein a firing hole (9) is provided between said primer (8) and said electromagnetically mechanical fuse.

6. The electromechanically safe solid-rocket engine igniter of claim 1, wherein said ignition capsule comprises a foil (13), a reinforcing charge (14), a baffle (15), a plastic casing (16), an ignition charge (17), and a metal mesh (18); the tin foil (13), the reinforcing powder (14), the partition plate (15), the plastic shell (16), the ignition powder (17) and the metal mesh (18) are sequentially connected to form a whole.

7. The igniter of claim 1 wherein said ignition capsule is adhered to said connecting base (2) by a sealant.

8. The electro-magnetically mechanically fused solid rocket engine igniter of claim 1 wherein said electro-magnetically mechanically fused solid rocket engine igniter has two states: a safe state, a combat state; in the safe state, the spring (12) is in a free contraction state, and the gas fire transfer channel (10) is in a closed state; when the electromagnetic mechanical fuse is switched into a fighting state from a safe state, after the electromagnetic sucker (1) receives the power supply current of the electromagnetic sucker power supply cable (3), the gas fire transfer channel valve (11) moves along the direction B, the spring (12) expands along the direction C, the gas fire transfer channel valve (10) is in an open state when the gas fire transfer channel valve (11) is in contact with the electromagnetic sucker (1), and the electromagnetic mechanical fuse is characterized to be switched into the fighting state.

Technical Field

The invention belongs to the technical field of solid rocket engines, and relates to an electromagnetic mechanical safety type solid rocket engine igniter.

Background

The igniter is a starting device for the solid rocket engine, is the most dangerous part and the most easily failed part, and generally comprises a fire tube, an ignition medicine box (containing ignition medicine) and a connecting seat, wherein the fire tube is the most sensitive part in the igniter. Static electricity of human body and some plastic products, strong magnetic field caused by electromagnetic radiation of radar, radio station and high voltage line, stray current on battlefield and in weapon system, etc. may cause accidental ignition of ignition tube, resulting in serious consequences. Modern weapon systems therefore continuously improve on the one hand the safety characteristics of the squib; on the other hand, some safety insurance measures are also taken. For example, shielding measures are taken against electrostatic induction and radio frequency electromagnetic induction; installing a low-pass filter on the ignition line to prevent radio frequency electromagnetic induction; mechanical safety mechanisms, etc. Adopt shielding measure and installation safety mechanism such as low pass filter to accomplish complete shielding to solid rocket engine's some firearm very difficult, still there is some firearm condition of misfiring to take place promptly, cause serious incident, through a large amount of analysis tests, show that increase mechanical safety mechanism and can ensure that some firearm can not arouse the incident because of the misfiring in some firearm, mechanical safety usually all is manual rotary type, it is complicated and troublesome to use, consequently novel safe, mechanical type solid rocket engine point firearm that facilitates use is waited to develop.

Disclosure of Invention

The invention aims to solve the technical problems and designs an electromagnetic mechanical safety type solid rocket engine igniter

The technical scheme of the invention is as follows: an electromagnetic mechanical fuse type solid rocket engine igniter is characterized in that a set of electromagnetic mechanical fuse is arranged in a gas fire transfer channel between a fire tube and an ignition medicine box in the igniter, and the opening and the closing of the gas fire transfer channel are controlled by controlling the electromagnetic mechanical fuse through an electric signal.

The electromagnetic mechanical fuse mainly comprises an electromagnetic chuck 1, an electromagnetic chuck power supply cable 3, a gas fire transfer channel valve 11 and a spring 12; the electromagnetic mechanical fuse is arranged in the connecting seat 2, the electromagnetic chuck 1 and the connecting seat 2 are fixed in position, one end of the spring 12 is fixed on the connecting seat 2, the other end of the spring is fixed on the gas passage valve 11, the gas passage valve 11 can reciprocate in the connecting seat 2 under the action of the electromagnetic chuck 1 and the spring 12, and the gas fire transfer passage 10 is arranged in the gas passage valve 11.

The electromagnetic chuck power supply cable 3 supplies power to the electromagnetic chuck 1.

The ignition tube is composed of an ignition pressing screw 4, an ignition cable 5, a bearing plate 6, an ignition head 7, ignition powder 8 and an ignition hole 9 into a whole, the ignition pressing screw 4 is in threaded connection with the connecting seat 2, the ignition cable 5 penetrates through the bearing plate 6 to be connected with the ignition head 7, and the ignition powder 8 wraps the ignition head 7.

And a firing hole 9 is arranged between the firing powder 8 and the electromagnetic mechanical fuse.

The ignition medicine box comprises a tin foil 13, a reinforcing medicine 14, a partition plate 15, a plastic shell 16, an ignition medicine 17 and a metal mesh 18; the tin foil 13, the reinforcing powder 14, the partition 15, the plastic shell 16, the ignition powder 17 and the metal mesh 18 are connected in sequence to form a whole.

The ignition medicine box is adhered to the connecting seat 2 through a sealant.

The igniter has two states: a safe state, a combat state; in the safe state, the spring 12 is in a free contraction state, and the gas fire transfer channel 10 is in a closed state; when the electromagnetic mechanical fuse is switched into the fighting state from the safe state, after the electromagnetic sucker 1 receives the power supply current of the electromagnetic sucker power supply cable 3, the gas fire transfer channel valve 11 moves along the direction B, the spring 12 expands along the direction C, the gas fire transfer channel 10 is in the open state when the gas fire transfer channel valve 11 is in contact with the electromagnetic sucker 1, and the electromagnetic mechanical fuse is characterized to be switched into the fighting state.

Advantageous effects of the invention

The ignition control of the igniter is realized, the ignition of the whole ignition device is not caused even if the ignition system is ignited by mistake, the safety factor is greatly improved, the possibility of safety accidents is reduced, the electrification control of a mechanical safety device is further realized, and the safety control is safer and more convenient.

Drawings

FIG. 1 is a schematic diagram of the safe state of the igniter of the electromagnetic mechanical fuse type solid rocket engine according to the present invention

FIG. 2 is a schematic diagram of the fighting state of the igniter of the electromagnetic mechanical fuse type solid rocket engine according to the present invention

FIG. 3 is a schematic view of the safety electromagnetic mechanical fuse and ignition tube

FIG. 4 is a schematic view of the electromagnetic mechanical fuse and ignition tube in a fighting state

Detailed Description

An electromagnetic-mechanical fuse solid rocket engine igniter according to one embodiment of the invention is shown in fig. 1-4.

Compared with a conventional igniter, the solid rocket engine igniter with the electromagnetic mechanical fuse adds a set of electromagnetic mechanical fuse.

The electromagnetic mechanical fuse mainly comprises an electromagnetic chuck 1, an electromagnetic chuck power supply cable 3, a gas fire transfer channel valve 11 and a spring 12; a gas fire transfer channel 10 is arranged in the gas channel valve 11; the electromagnet cable 3 is used to supply power to the electromagnet 1. The electromagnetic mechanical fuse is arranged between the ignition tube and the ignition medicine box.

The ignition tube is formed into a whole by an ignition pressing screw 4, an ignition cable 5, a bearing plate 6, an ignition head 7, an ignition powder 8 and an ignition hole 9, and is connected with the connecting seat 2 through threads on the ignition pressing screw 4. The ignition cable 5 passes through the pressure bearing plate 6 to be connected with the ignition head 7, the ignition powder 8 is wrapped on the ignition head 7, and the ignition hole 9 is arranged between the ignition powder 8 and the electromagnetic mechanical fuse.

The ignition medicine box is formed into a whole by a tinfoil 13, a reinforcing medicine 14, a partition plate 15, a plastic shell 16, an ignition medicine 17 and a metal mesh sleeve 18, and the ignition medicine box is adhered to the connecting seat 2 through a sealant.

The electromagnetic mechanical fuse is arranged in the connecting seat 2, the electromagnetic chuck 1 and the connecting seat 2 are fixed in position, one end of the spring 12 is fixed on the connecting seat 2, the other end of the spring is fixed on the gas passage valve 11, and the gas passage valve 11 can reciprocate in the connecting seat 2 under the action of the electromagnetic chuck 1 and the spring 12.

The igniter has two states: security Status (SAFE), combat status (ARM).

Two states of the igniter are controlled by electromagnetic mechanical insurance, as shown in fig. 3 and 4, in a SAFE State (SAFE), the spring 12 is in a free contraction state, and the gas fire transfer passage 10 is in a closed state; when the electromagnetic mechanical fuse is switched from the SAFE State (SAFE) to the fighting state (ARM), after the electromagnetic chuck 1 receives the power supply current of the electromagnetic chuck power supply cable 3, the gas fire transfer channel valve 11 moves along the direction B, meanwhile, the spring 12 expands along the direction C, and when the gas fire transfer channel valve 11 is in contact with the electromagnetic chuck 1, the gas fire transfer channel 10 is in an open state, which represents that the electromagnetic mechanical fuse is switched to the fighting state (ARM).

An electromagnetic mechanical safety type solid rocket engine igniter is in a SAFE State (SAFE) most of time, namely, the electromagnetic mechanical safety closes a gas ignition channel 10, even if an ignition tube in the igniter is ignited by mistake, the generated ignition gas cannot ignite ignition powder 17 through the gas ignition channel 10, the igniter cannot ignite normally, and the solid rocket engine cannot be ignited.

When the solid rocket engine needs ignition, firstly, the igniter must be switched from a SAFE State (SAFE) to a fighting state (ARM), namely, the electromagnetic mechanical fuse actuates to open the gas ignition channel 10; then, after the ignition tube receives ignition current input by the ignition cable 5, the ignition head 7 works and ignites the ignition powder 8, namely the ignition tube normally ignites as required to generate high-temperature ignition gas A which passes through the ignition hole 9 and then passes through the gas fire transfer channel 10; then, the high-temperature ignition gas A quickly burns through the tin foil 13, ignites the reinforcing agent 14 to form more high-temperature gas, and then burns through the partition plate 15; and finally, igniting the ignition powder 17 to form ignition gas with higher temperature and higher pressure, burning through the plastic shell 16, igniting the solid rocket engine through the metal mesh 18, and ending the work.

The igniter is in a safe state in most of time, namely the electromagnetic mechanical fuse closes the gas fire transfer channel, even if a fire tube in the igniter is ignited by mistake, the generated ignition gas cannot pass through the gas fire transfer channel to ignite the ignition medicine box, the igniter cannot ignite normally, and the solid rocket engine cannot be ignited; when the solid rocket engine needs to be ignited, the igniter needs to be switched to a fighting state from a safe state, namely, the electromagnetic mechanical fuse actuates to open the gas ignition channel, the ignition tube in the igniter normally ignites according to the requirement in the state, the generated ignition gas ignites the ignition medicine box through the gas ignition channel, the igniter normally works, and the solid rocket engine is ignited.