CN207946021U - A self-bouncing launching device for increasing the initial capacity of a low-pressure chamber - Google Patents

Abstract

The self-eject launch device that the utility model discloses a kind of just to hold for improving low-pressure chamber, belongs to weapons emitter technical field, including：Launching tube, guided missile, hydraulic cylinder and supporting plate；More than two hydraulic cylinders are located inside launching tube, and cylinder body end is each attached on the step surface of launching tube, and tailpiece of the piston rod is connected as one with the supporting plate positioned at launching tube bottom；Guided missile is located in launching tube, and bottom contradicts on supporting plate, and the Laval nozzle of missile base passes through the centre bore of supporting plate；When original state, the piston rod of hydraulic cylinder is in elongation state, and the Laval nozzle of missile base and the bottom connection of launching tube touch；The low-pressure chamber that the device can improve launching tube bottom just holds, and reduces guided missile in emission process and overloads, and reduces bullet bottom temperature and reduces launching tube inside pressure.

Description

A self-bouncing launching device for increasing the initial capacity of a low-pressure chamber

technical field

The utility model belongs to the technical field of weapon launching devices, in particular to a self-bounce launching device for increasing the initial capacity of a low-pressure chamber.

Background technique

When the missile is launched, the engine combustion chamber is a high-pressure chamber, and the gas generated by the missile's own engine is directly sealed in the launch tube, so that the space at the bottom of the launch tube becomes a low-pressure chamber, and the gas in the low-pressure chamber is directly used to propel the missile. On the one hand, the gas accelerates through the Laval nozzle to form a reaction force; on the other hand, the gas fills the space of the low-pressure chamber so that the pressure rises to generate additional thrust. This launch method is called self-bomb launch. The launcher of this self-bombing launch method has a simple structure, saves space, and can increase the filling density and combat effectiveness. However, due to the small initial capacity of the low-pressure chamber of the launching device using the self-bombing launching method, the missile will be overloaded during the launching process, the pressure on the inside of the launching tube will be too high, and the temperature of the missile bottom will be too high.

Utility model content

In view of this, the purpose of this utility model is to provide a self-bomb type launching device for increasing the initial volume of the low-pressure chamber, which can increase the initial volume of the low-pressure chamber at the bottom of the launch tube, reduce the missile overload during launch, and reduce the temperature of the bottom of the missile. And reduce the pressure inside the launch tube.

The utility model is achieved through the following technical solutions:

A self-bouncing launching device for increasing the initial capacity of a low-pressure chamber, including: a launching tube, a missile, a hydraulic cylinder and a supporting plate;

An annular stepped surface is provided inside the launch tube;

A central hole is processed on the supporting plate;

The overall connection relationship is as follows: more than two hydraulic cylinders are located inside the launch tube, the cylinder ends are fixed on the step surface of the launch tube, and the piston rod end is connected with the supporting plate at the bottom of the launch tube;

The missile is located in the launch tube, its bottom touches the supporting plate, and the Laval nozzle at the bottom of the missile passes through the central hole of the supporting plate;

In the initial state, the piston rod of the hydraulic cylinder is in an extended state, and the Laval nozzle at the bottom of the missile is in contact with the bottom of the launch tube;

Before launching the missile, the hydraulic cylinder and the supporting plate drive the missile to move upwards, so that the distance between the bottom surface of the missile and the inner bottom surface of the launching tube is a set distance.

Further, the launcher cover is also included, and the launcher cover is installed on the top of the launcher.

Further, the hydraulic oil cylinder is a three-stage cylinder.

Further, there are two hydraulic cylinders, which are distributed symmetrically around the missile.

Further, one end of the launch tube is a circular tube, and the other end is a square tube, and the end of the square tube is used for installing a hydraulic cylinder.

Further, the distance between the bottom surface of the missile and the inner bottom surface of the launch tube is one-third of the length of the launch tube.

Beneficial effects: (1) The utility model shrinks the piston rod of the hydraulic oil cylinder to drive the supporting plate to lift the missile to one-third of the length of the launch tube, effectively improving the initial capacity of the low-pressure chamber at the bottom of the missile and reducing the missile's The missile is overloaded during the launch process, which reduces the temperature of the bottom of the missile and reduces the overload inside the launch tube during the launch process.

(2) The utility model has a simple and compact structure and a reliable working environment. On the premise of ensuring the emission efficiency and reliability, the utility model can effectively reduce the manufacturing and maintenance costs of the emission equipment.

(3) The utility model adopts two hydraulic oil cylinders distributed diagonally to ensure that the missile is evenly stressed when the missile is lifted by the supporting plate.

Description of drawings

Fig. 1 is the overall structural representation of the utility model.

Fig. 2 is a schematic diagram of the connection between the hydraulic cylinder and the supporting plate of the present invention.

Fig. 3 is a schematic diagram of the positional relationship between the hydraulic cylinder, the supporting plate and the missile of the present invention.

Fig. 4 is a structural schematic view of increasing the initial capacity of the low-voltage chamber in the utility model.

Among them, 1-launching tube, 2-Laval nozzle, 3-missile, 4-hydraulic cylinder, 5-supporting plate, 6-launching tube cover.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and examples.

This embodiment provides a self-bouncing launching device for increasing the initial capacity of the low pressure chamber, referring to accompanying drawing 1, comprising: launching tube 1, missile 3, hydraulic cylinder 4, supporting plate 5 and launching tube cover 6;

One end of the launch tube 1 is a circular tube, and the other end is a square tube;

The hydraulic cylinder 4 is a three-stage cylinder;

The supporting plate 5 is an annular structure;

The overall connection relationship is as follows: see attached drawing 2, two hydraulic cylinders 4 are located at two opposite corners in the square tube of the launch tube 1, and the cylinder ends are fixed at the intersection of the square tube and the circular tube of the launch tube 1 On the step surface at the place, the piston rod end is connected as a whole with the supporting plate 5 at the bottom of the square tube of the launching tube 1;

Referring to accompanying drawing 3, missile 3 is positioned in launching tube 1, and its bottom is on supporting plate 5, and Laval nozzle 2 at the bottom of missile 3 passes through the central hole of supporting plate 5;

The launcher cover 6 is installed on the end of the cylindrical tube of the launcher 1, and is used to prevent impurities from entering the launcher 1 during transportation; the launcher cover 6 is a fragile cover, and when the missile 3 hits the launcher cover 6 , The launch tube cover 6 is easily broken.

Working principle: In the initial state, the piston rod of the hydraulic cylinder 4 is in an extended state and the cylinder cover is launched;

Referring to accompanying drawing 4, before preparing to launch the missile 3, the piston rod of the hydraulic cylinder 4 shrinks, and then the supporting plate 5 drives the missile 3 to move upwards and breaks the launch tube cover 6 until the missile 3 moves to the distance between the bottom of the missile 3 and the bottom of the launch tube 1 It is 1/3rd of the length of the launch tube 1. At this moment, the initial volume of the low-pressure chamber of the launch tube 1 is increased, the piston rod of the hydraulic cylinder 4 stops shrinking, the missile 3 no longer moves upward, and the missile 3 ignites and launches.

In summary, the above are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. a kind of self-eject launch device just held for improving low-pressure chamber, which is characterized in that including：Launching tube (1), guided missile (3), hydraulic cylinder (4) and supporting plate (5)；

The launching tube (1) is internally provided with the step surface of annular；

It is machined with centre bore on the supporting plate (5)；

Integrated connection relationship is as follows：More than two hydraulic cylinders (4) are located at launching tube (1) inside, and cylinder body end is each attached to hair On the step surface of shooting cylinder (1), tailpiece of the piston rod is connected as one with the supporting plate (5) positioned at launching tube (1) bottom；

Guided missile (3) is located in launching tube (1), and bottom contradicts on supporting plate (5), and the Laval nozzle (2) of guided missile (3) bottom Centre bore across supporting plate (5)；

When original state, the piston rod of hydraulic cylinder (4) is in elongation state, the Laval nozzle (2) and hair of guided missile (3) bottom The bottom connection of shooting cylinder (1) touches；

It launches a guided missile before (3), drives guided missile (3) to move upwards by hydraulic cylinder (4) and supporting plate (5), make guided missile (3) bottom surface With at a distance from launching tube (1) inner bottom surface be setpoint distance.

2. a kind of self-eject launch device just held for improving low-pressure chamber as described in claim 1, which is characterized in that also wrap Launch tube closure (6) is included, launch tube closure (6) is mounted on the top of launching tube (1).

3. a kind of self-eject launch device just held for improving low-pressure chamber as described in claim 1, which is characterized in that described Hydraulic cylinder (4) is three-level cylinder.

4. a kind of self-eject launch device just held for improving low-pressure chamber as described in claim 1, which is characterized in that described Hydraulic cylinder (4) is two, and symmetrical centered on guided missile (3).

5. a kind of self-eject launch device just held for improving low-pressure chamber as described in claim 1, which is characterized in that described One end of launching tube (1) is round cylinder, and the other end is square cylinder, and end is for installing hydraulic cylinder (4) where square cylinder.

6. a kind of self-eject launch device just held for improving low-pressure chamber as described in claim 1, which is characterized in that guided missile (3) bottom surface is the one third of launching tube (1) length at a distance from launching tube (1) inner bottom surface.