CN208847042U - A kind of novel boost motor of supersonic cruising guided missile - Google Patents

Abstract

The utility model discloses a kind of novel boost motor scheme of supersonic cruising guided missile, structure includes the booster case of bottle shape, boost motor powder charge and afterburning chamber, turns grade control device and clip.The utility model compared with prior art the advantages of be: boost motor shape and powder charge are all in winebottle-shaped structure, and the foot section brought jet pipe, compared with Nozzleless booster, specific impulse is higher；Its head is protruded into inside afterburning chamber simultaneously, is considerably increased the charging quality of boost motor, is increased total punching of boost motor.Using this novel boost motor, afterburning chamber does not need powder charge, does not need the jet pipe designed for boost phase more, decreases and turn grade number, components are less, keep design process and manufacturing process greatly simplified, improve the overall reliability energy of system.The design of clip and guide groove can be effectively prevented boost motor and shift and reverse with during dishing out in working stage, brings unexpected disturbances to flight course, improves the steady operation performance of system.

Description

A kind of novel boost motor of supersonic cruising guided missile

Technical field

The utility model relates to solid rocket ramjet field, in particular to a kind of supersonic cruising guided missile is novel helps Thruster.

Background technique

As aircraft is to the continuous improvement of engine calls and the development of vehicle technology, punching engine is with it Than leaping high, it is small in size, light-weight, compact-sized, cost is relatively low the advantages that with become the main direction of development, especially as supersonic speed The power device of cruise missile increasingly shows unrivaled advantage.Punching engine primary structure include gas generator, Air intake duct, boosting afterburning chamber and jet pipe.The ram-air of the fuel-rich combustion gas and air intake port that spray from gas generator, is being helped Blending burning in afterburning chamber is pushed away, the high-temperature high-pressure fuel gas of generation is sprayed by jet pipe generates thrust.Punching engine is in low Mach Work can not be started under several, need to be accelerated to boost motor and turn grade Math 2-plus Ma.Common practice is mended in boosting It fires room and boosting powder column is added, constitute a monoblock type booster, cruise missile is accelerated to and turns grade Mach number.Therefore, it helps The combustion chamber that afterburning chamber is substantially a dual purpose is pushed away, it is both the afterburning chamber and entirety of fuel-rich combustion gas and ram-air The boosting combustion chamber of formula booster.

Since boosting afterburning chamber inner space limits, filled boosting powder column limited quality can not accelerate to cruise missile Turn grade Mach number, needs to install a special boost motor additional to punching engine.Punching engine with boost motor it is worked Cheng Shi: boost motor is lighted a fire on ground, and entire guided missile is accelerated to certain Mach number by about 5s within a very short time, and is patrolled with guided missile Grade of navigating separation；Then the boosting afterburning chamber powder charge igniting of punching engine, guided missile is continued to accelerate to turns grade Mach number；Work as boosting When the pressure of afterburning chamber drops to setting value, starting turns grade program, the ignition of gas generator, and fuel-rich combustion gas is sprayed through gas generator Mouth be injected into afterburning chamber and air blending burn, this stage punching engine provide thrust guided missile is persistently accelerated, Rise to cruise Mach number and cruising altitude.

By the above process it is found that above scheme has the following problems: first is that boost motor and boosting afterburning chamber separate powder charge, adding Fast process is divided to two successive stages, needs to design special separation control system, increases the complexity of system；Second is that Boosting afterburning chamber is both the blending combustion chamber of fuel-rich combustion gas and ram-air and the combustion chamber of boosting powder column, boosting afterburning chamber Design and thermal protection difficulty are larger；Third is that the nozzle throat diameter specific impulse pressure combustion phases of boosting is much smaller, need for boosting Afterburning chamber designs two entirely different jet pipes, and after powder column burning, boosting jet pipe is dished out, ignition of gas generator work Make, the shortcomings that boosting afterburning chamber enters blending combustion phases, this scheme is to increase jet pipe relieving mechanism, and it is difficult to increase design Degree and system complexity, while jet pipe casts process aside and has disturbance to body.Although applying day without jet pipe boosting technology in recent years Benefit attracts people's attention, but it has jet pipe scheme low by 10%~15% than using than strategically important place with performance propellant, needs Increase propellant mass to compensate, or even need to install additional concatenated boost motor to meet acceleration needs, further increases design Difficulty and system complexity.

Utility model content

In view of the above-mentioned problems, the utility model is intended to provide one kind can meet punching engine course of work needs very well Novel boost motor, guarantee punching engine is accelerated to turn grade Mach number under the premise of, punching engine system is effectively reduced Complexity improves functional reliability and stability.

In order to solve the above technical problems, technical solution provided by the utility model are as follows: a kind of supersonic cruising guided missile is novel Boost motor, including afterburning chamber, booster case, boost motor powder charge, turn grade control device and clip, the afterburning chamber is cylinder Shape cylinder, one convergence diffused jet pipe of the foot section brought, there is gas inlet on head, there is air intake port on side wall, described Booster case is winebottle-shaped structure, there is two sections that diameter is different, and lesser one section of outer diameter is head, positioned at the cavity of afterburning chamber It is interior, based on biggish one section of the booster case outer diameter, it is located at afterburning chamber jet pipe rear, outer diameter and afterburning chamber outer diameter are big Small consistent, the booster case tail portion has a convergence diffused jet pipe, the booster case head exterior surface Axis direction circumferentially equally distributed four guide grooves are parallel to, the guiding front of the slot extends through the boosting Device housing head end face, the guiding slot length are slightly less than head sections, and the boost motor powder charge riddles the boost motor The cavity of enclosure interior, the grade control device that turns are located in the booster case head end, the boost motor dress After the completion of medicine burning, when pressure drops to certain value in the booster case, the grade control device starting that turns turns grade journey Sequence dishes out the booster case separation, and the clip is circular ring shape, and the clip is along the afterburning chamber axial direction cloth It sets in the space between afterburning chamber interior walls and booster case, the clip is fixed on afterburning chamber inner wall with bonded adhesives On, the fixture block of four protrusions is circumferentially uniformly distributed in the clip inner ring, the width and height of the fixture block are led with described Cooperate to the width and depth of slot.

The utility model compared with prior art the advantages of be: booster case and boost motor powder charge all use winebottle-shaped Structure, increased head can be protruded into inside afterburning chamber wall, save bulk shared by boost motor, increase powder charge Quality；Due to devising special boosting jet pipe, compared with Nozzleless booster, specific impulse is higher, to increase boost motor It is total to rush, powder charge is not needed inside afterburning chamber, additional boosting jet pipe is not needed, reduces components, reduce and turn grade process, make Designing and manufacturing technique is greatly simplified, improves the overall reliability energy of punching engine.The design of clip and guide groove can be right Booster case carries out effective fixation radially and circumferentially, prevents booster case from deflecting before turning grade and during dishing out And twisting, unnecessary disturbance is generated to cruise missile.Manufacture and design and erection stage is to the smooth of guide groove and fixture block surface Degree requires and lubricated, reduces booster case to greatest extent and dishes out the frictional resistance of process.

Detailed description of the invention

Fig. 1 is a kind of stereoscopic schematic diagram of the novel boost motor of supersonic cruising guided missile of the utility model,

Fig. 2 is a kind of installation cross-sectional view of the novel boost motor of supersonic cruising guided missile of the utility model,

Fig. 3 is the three-dimensional figure of booster case,

Fig. 4 is the three-dimensional figure of clip.

It is as shown in the figure: 1, afterburning chamber, 2, booster case, 3, boost motor powder charge, 4, turn grade control device, 5, clip, 6, Fixture block, 7, guide groove.

Specific embodiment

The following describes the utility model in further detail with reference to the accompanying drawings.

In conjunction with attached drawing, a kind of novel boost motor of supersonic cruising guided missile, including afterburning chamber 1, booster case 2, boost motor Powder charge 3 turns grade control device 4 and clip 5, and the afterburning chamber 1 is cylindrical tube, one convergence diffused spray of the foot section brought There is gas inlet on pipe, head, there is air intake port on side wall, and the booster case 2 is winebottle-shaped structure, have diameter not Same two sections, lesser one section of outer diameter is head, and in the cavity of afterburning chamber 1,2 outer diameter of booster case is biggish Based on one section, it is located at 1 jet pipe rear of afterburning chamber, outer diameter and 1 outer diameter of afterburning chamber are in the same size, 2 tail of booster case Portion has a convergence diffused jet pipe, and 2 head exterior surface of booster case is parallel to axis direction circumferentially Equally distributed four guide grooves 7,7 front end of guide groove extends through 2 head end of booster case, described 7 length of guide groove is slightly less than head sections, and the boost motor powder charge 3 riddles the cavity inside the booster case 2, described The grade control device 4 that turns be located in 2 head end of booster case, it is described after the completion of the boost motor powder charge 3 is burnt When pressure drops to certain value in booster case 2, the starting of grade control device 4 that turns turns grade program, by the boosting The separation of device shell 2 is dished out, and the clip 5 is circular ring shape, and the clip 5 is disposed axially in afterburning chamber 1 along the afterburning chamber 1 In space between inner wall and booster case 2, the clip 5 is fixed on 1 inner wall of afterburning chamber with bonded adhesives, described The fixture block 6 of four protrusions, the width and height of the fixture block 6 and the guide groove 7 are circumferentially uniformly distributed in 5 inner ring of clip Width and depth cooperation.

In the specific implementation, the effect of the clip is to carry out consolidating radially and circumferentially to booster case to the utility model It is fixed, it prevents booster case deflecting before turning grade and during dishing out and twisting, dishes out process to reduce booster case Frictional resistance, should ensure that the smoothness of guide groove and fixture block surface, and carry out sufficient lubrication in a pre-installation.

The utility model and embodiments thereof are described above, this description is no restricted, shown in attached drawing Be also one of the embodiments of the present invention, actual structure is not limited to this.All in all if this field Those of ordinary skill is enlightened by it, without deviating from the purpose of the present invention, not inventively design with The similar frame mode of the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (1)

1. a kind of novel boost motor of supersonic cruising guided missile, it is characterised in that: including afterburning chamber (1), booster case (2), help Thruster powder charge (3) turns grade control device (4) and clip (5), and the afterburning chamber (1) is cylindrical tube, and the foot section brought one Diffused jet pipe is restrained, there is gas inlet on head, there is air intake port on side wall, and the booster case (2) is bottle Shape structure has two sections that diameter is different, and lesser one section of outer diameter is head, is located in the cavity of afterburning chamber (1), the boosting Based on biggish one section of device shell (2) outer diameter, it is located at afterburning chamber (1) jet pipe rear, outer diameter and afterburning chamber (1) outer diameter size one It causes, the booster case (2) tail portion has a convergence diffused jet pipe, the booster case (2) head appearance Face is parallel to axis direction circumferentially equally distributed four guide grooves (7), and the guide groove (7) front end extends through institute Booster case (2) head end stated, the guide groove (7) length are slightly less than head sections, the boost motor powder charge (3) The internal cavity of the booster case (2) is riddled, described turn grade control device (4) are located at the booster case (2) In head end, after the completion of boost motor powder charge (3) burning, the interior pressure of the booster case (2) drops to certain value When, described grade control device (4) starting that turns turns grade program, booster case (2) separation dished out, the clip It (5) is circular ring shape, the clip (5) is disposed axially in afterburning chamber (1) inner wall and booster case along the afterburning chamber (1) (2) in the space between, the clip (5) is fixed on afterburning chamber (1) inner wall with bonded adhesives, in the clip (5) The fixture block (6) of four protrusions, the width and height and the guide groove (7) of the fixture block (6) are circumferentially uniformly distributed on ring Width and depth cooperation.