CN221302112U - Explosion-type rock breaking device based on balanced emission principle - Google Patents

Abstract

The utility model belongs to the field of rock breaking, and particularly relates to a broken explosion type rock breaking device based on a balanced emission principle. Comprises a rear barrel, a balance body, a propellant, a rear bullet, a front barrel, an extension fuse, an explosion-transmitting medicine and a front shaped charge; one end of the front barrel is in threaded connection with the rear barrel, the other end of the front barrel is in threaded connection with the front-stage shaped charge, an extension fuze is arranged in the front barrel, and the other end of the extension fuze detonates the front-stage shaped charge through a booster; the middle part of the rear barrel is internally provided with a propellant powder, one side of the rear barrel, which is positioned in the propellant powder and is close to the front barrel, is provided with a rear bullet, and the other side of the propellant powder in the rear barrel is provided with a balancing body. The explosion type rock breaking device based on the balanced emission principle realizes controllable damage to a static target on the premise of not changing the damage power of a warhead, reduces the incidental damage effect of the traditional balanced emission, and improves the portability of equipment.

Description

Explosion-type rock breaking device based on balanced emission principle

Technical Field

The utility model belongs to the field of rock breaking, and particularly relates to a broken explosion type rock breaking device based on a balanced emission principle.

Background

In natural geological disasters, especially earthquakes, debris flows, landslides and the like, massive hard rolling stones often appear on rescue roads, the traditional small engineering machinery cannot rapidly clean the hard rolling stones, and the requirements of the large machinery on working environments and traffic roads are high, so that the rescue time of disaster area personnel is greatly influenced. Thus, the method is effective in a direct and rapid way to break the explosive by using the explosive, which is similar to mine development.

However, the conventional explosive breaking method also requires manually perforating the surface of the rolling stone, then placing the explosive inside the hole, and breaking it after detonating the explosive. The work efficiency is lower, and especially to a plurality of explosive points often need to be arranged when too big barrier, the efficiency of breaking is extremely low. For the traditional military series warhead structure, professional transmitting equipment is required, quick deployment cannot be realized, and remote transmission is often adopted for protecting transmitting equipment, so that the breaking efficiency and the breaking precision are further influenced.

Therefore, aiming at the problem that the large-block hard barren rock cannot be quickly broken in natural geological disasters, the explosion-type rock breaking device based on the balanced emission principle is provided, can be directly deployed on the surface of an obstacle in a short distance, does not need professional emission equipment, and can quickly open and break the large-block hard obstacle in various environments.

Disclosure of utility model

The utility model aims to provide a broken-explosion type rock breaking device based on a balanced emission principle.

The technical solution for realizing the purpose of the utility model is as follows: a broken burst type rock breaking device based on a balanced launching principle comprises a rear barrel, a balance body, a propellant powder, a rear bullet, a front barrel, an extension fuse, a booster powder and a front shaped charge;

One end of the front barrel is in threaded connection with the rear barrel, the other end of the front barrel is in threaded connection with the front-stage shaped charge, an extension fuze is arranged in the front barrel, and the other end of the extension fuze detonates the front-stage shaped charge through a booster; the middle part of the rear barrel is internally provided with a propellant powder, one side of the rear barrel, which is positioned in the propellant powder and is close to the front barrel, is provided with a rear bullet, and the other side of the propellant powder in the rear barrel is provided with a balancing body.

Further, a closed ring is arranged between the propellant powder and the latter bullet, and the closed ring is connected with the latter bullet by screw threads.

Further, the balance body adopts a plastic sheet stacking structure, the thickness of a single sheet is 5+/-1 mm, the diameter of the sheet is the same as that of the rear body tube, and the sheets are in soft connection with each other by wires.

Further, the rear barrel of the propellant powder is thickened, and the thickness of the rear barrel is 3 times of that of other positions of the rear barrel.

Further, the diameter of the rear barrel is 2.5 times of the diameter of the rear-stage bullet, and the length of the rear barrel is not less than 3 times of the length of the rear-stage bullet.

Further, the diameter of the front shaped charge is 3 times larger than that of the rear bullet.

Further, the bullet fixing device also comprises a centering ring, wherein the centering ring is internally and externally in close contact with the rear-stage bullet and the rear barrel respectively and is used for fixing the rear-stage bullet in the rear barrel.

Further, the front stage shaped charge comprises a front stage shaped charge housing, a shaped charge and a shaped charge liner; the other end of the front barrel is connected with the front stage shaped charge shell in a threaded manner.

Further, the liner is a conical liner, a hemispherical liner and a horn liner.

Further, the extension fuse comprises a fuse switch and a fuse extension tube, one end of the fuse extension tube is connected with the fuse switch through threads, the other end of the fuse extension tube is in close contact with the booster, the booster is in close contact with the shaped charge, and the shaped charge cover is adhered to the surface of the shaped charge.

Compared with the prior art, the utility model has the remarkable advantages that:

First, compared with the traditional explosion series connection warhead, the utility model does not need special emission equipment, can realize micro rear seat emission based on a balanced emission principle, does not need manual holding, and improves the use safety.

Secondly, the utility model adopts a modularized design, is convenient to carry, can be quickly assembled and erected during use, and improves the use efficiency.

Third, the balance body of the present utility model employs a low strength sheet stacking structure that greatly reduces collateral damage due to movement of the high mass balance body as compared to conventional balance bodies.

Fourth, the utility model can control the perforation and the follow-up depth of the subsequent bullets by adjusting the arrangement distance between the equipment opening and the target.

Drawings

Fig. 1 is a schematic structural view of a burst rock breaking device based on the principle of balanced emission.

FIG. 2 is a schematic illustration of the process of breaking rock breaking device and target action based on the principle of balanced emission; wherein (a) is in an initial state, (b) is the ignition of the propellant, (c) is the crushing of the balance body, (d) is the collision of the head of the bullet and the fuze, (e) is the detonation of the front-stage shaped charge, (f) the rear-stage bullet enters the inside of the target, and (g) the rock is crushed.

Reference numerals illustrate:

1-rear barrel, 2-balance body, 3-propellant, 4-closed ring, 5-rear bullet, 6-centering ring, 7-front barrel, 8-fuze switch, 9-fuze extension tube, 10-fixed ring, 11-booster, 12-front shaped charge shell, 13-shaped charge and 14-shaped charge cover.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1, a burst series connection warhead structure based on a balanced emission principle comprises a rear barrel 1, a balance body 2, a propellant powder 3, a closed gas ring 4, a rear bullet 5, a centering ring 6, a front barrel 7, a fuze switch 8, a fuze extension tube 9, a fixed ring 10, a booster 11, a front shaped charge shell 12, a shaped charge 13 and a shaped charge liner 14; wherein the rear barrel 1 is tightly connected with the front barrel 7 through threads, the balance body 2 is tightly contacted with the rear barrel, the propellant powder 3 is placed between the balance body 2 and the gas-closing ring 4 and is tightly contacted with the rear barrel 1, the gas-closing ring 4 is in threaded connection with the rear bullet 5, the centering ring 6 is respectively tightly contacted with the rear bullet 5 and the rear barrel 1, the fixing ring 10 is respectively tightly contacted with the front barrel 7 and the fuse extension tube 9, the shaped charge shell 12 is in threaded connection with the front barrel 7, the fuse switch 8 and the fuse extension tube 9 are in threaded connection, the booster 11 is tightly contacted with the shaped charge 13, and the powder cover 14 is adhered on the surface of the shaped charge 13; after the propellant is ignited, the rear-stage bullet 5 moves forwards under the pushing of the propellant gas, meanwhile, the balance body 2 moves towards the tail direction to offset a large amount of propellant recoil, when the bullet head impacts the fuse, the front-stage shaped charge is detonated, the liner 14 forms energy-gathering jet flow, the static target is perforated, and after that, the rear-stage bullet 5 enters the target along with the front-stage shaped charge, and then explodes to realize the efficient damage to the firm static target.

The balance body 2 adopts a plastic or nylon sheet stacking structure, the thickness of a single sheet is 5mm, and the diameter of the sheet is the same as that of the rear body tube. The balance body 2 is broken and scattered to the periphery in the backward movement process after the action of the propellant powder 3, and the auxiliary damage to the rear can be greatly reduced when the balance body is intersected with the traditional balance propellant;

The front-stage shaped charge fuse is prolonged by the extension tube, the length of the extension tube 9 is set to be 1.5 times of the front-stage charge caliber, jet flow is completed to open a target before the warhead reaches the front-stage charge, the time sequence of front-stage and rear-stage actions is ensured, and meanwhile, the impact of detonation of the front-stage shaped charge on the follow-up bullets is reduced.

The barrel around the propellant powder 3 is thickened, the specific thickness is set to be 3 times of other parts, so that the lateral leakage of the combustion pressure of the propellant powder is reduced, and the initial speed of the firing of the subsequent bullet 5 is increased;

In order to ensure the acceleration capability of the rear-stage bullet 5, the diameter of the rear barrel 1 is set to be 2.5 times of the diameter of the bullet, and the length is not less than 3 times of the length of the bullet body;

The whole device adopts a modularized design, the front-stage shaped charge is in threaded connection with the front barrel 7, the front barrel 7 is in threaded connection with the rear barrel 1, and the device can be quickly assembled during use and is convenient to carry;

The caliber of a warhead of the front-stage shaped charge can be rapidly selected according to the target characteristic requirement, and the caliber of the front-stage shaped charge is 3 times of that of a rear-stage bullet;

the following speed of the subsequent bullet 5 can be adjusted by changing the type and the quality of the propellant powder;

the balanced emission is used in a series warhead structure, so that quick arrangement and quick detonation after personnel evacuation can be realized, and quick breaking of a firm and static target can be realized.

When the device is used, the arrangement position of the device and the target can be determined according to the caliber of the front-stage shaped charge, and the device can be arranged at the 2-caliber frying height of the target usually for ensuring the optimal depth of penetration;

The liner 14 can be a conical liner, a hemispherical liner, a horn liner, etc.;

The propellant 3 ignites to generate high-temperature and high-pressure gas which respectively pushes the rear-stage bullet 5 and the balance body 2 to move in opposite directions, and the barrel remains intact at the moment, as shown in fig. 2 (b);

since the balance body 2 adopts a laminated low-strength material stacking structure, cotton thread soft connection is adopted between the balance body and the balance body, and the balance body is broken into small blocks in the backward movement process, as shown in fig. 2 (c);

The bullet head collides with the fuze switch 8, and under the action of the booster 9, the pre-shaped charge 11 detonates and crushes the shaped charge cover 14 to form energy-gathering jet flow, as shown in fig. 2 (d) and 2 (e);

the energy-collecting jet moves at a high speed to penetrate the target body, pre-perforating is carried out on the target, and after that, the rear bullet 5 continues to move forwards into the target body, as shown in fig. 2 (f);

The inner charge of the latter bullet 5 is detonated and the target is broken up as shown in fig. 2 (g).

The explosion-type rock breaking device based on the balanced emission principle disclosed by the utility model realizes controllable damage to a static target on the premise of not changing the damage power of a warhead, reduces the incidental damage effect of the traditional balanced emission, and improves the portability of equipment.

Claims (10)

1. The explosion-breaking type rock breaking device based on the balanced emission principle is characterized by comprising a rear barrel (1), a balance body (2), an emitting medicine (3), a rear bullet (5), a front barrel (7), an extension fuse, an explosion-transferring medicine (11) and a front shaped charge;

One end of the front barrel (7) is in threaded connection with the rear barrel (1), the other end of the front barrel is in threaded connection with the front-stage shaped charge, an extension fuze is arranged in the front barrel (7), and the other end of the extension fuze detonates the front-stage shaped charge through an explosion transfer agent (11); the middle part of the rear barrel (1) is internally provided with a propellant powder (3), one side of the rear barrel (1) which is positioned on the propellant powder (3) and is close to the front barrel (7) is provided with a rear bullet (5), and the other side of the rear barrel (1) which is internally provided with the propellant powder (3) is provided with a balancing body.

2. Rock breaking device according to claim 1, characterized in that a gas-tight ring (4) is arranged between the propellant powder (3) and the latter bullet (5), the gas-tight ring (4) being in threaded connection with the latter bullet (5).

3. Rock breaking device according to claim 2, characterized in that the balancing body (2) is of a stacked structure of plastic lamellae, the thickness of the individual lamellae being 5±1mm, the diameter of the lamellae being the same as that of the rear barrel, the lamellae being in soft line connection with each other.

4. A rock breaking device according to claim 3, characterised in that the rear barrel (1) at the propellant powder (3) is thickened to a thickness of 3 times the thickness of the other parts of the rear barrel (1).

5. Rock breaking device according to claim 4, characterized in that the diameter of the rear barrel (1) is 2.5 times the diameter of the rear stage bullet, and that the length of the rear barrel (1) is not less than 3 times the length of the rear stage bullet.

6. The rock breaking device of claim 5, wherein the diameter of the pre-shaped charge is greater than 3 times the diameter of the post-stage bullet.

7. The rock breaking device according to claim 6, further comprising a centering ring (6), the centering ring (6) being in close contact with the rear stage bullet (5) and the rear barrel (1) inside and outside, respectively, for securing the rear stage bullet (5) inside the rear barrel (1).

8. A rock breaking device according to claim 7, wherein the pre-charge comprises a pre-charge housing (12), a shaped charge (13) and a liner (14); the other end of the front barrel (7) is connected with the front shaped charge shell (12) in a threaded manner.

9. The rock breaking device according to claim 8, wherein the liner is a cone liner, a hemispherical liner, or a horn liner.

10. A rock breaking device according to claim 9, characterized in that the extension fuze comprises a fuze switch (8) and a fuze extension tube (9), one end of the fuze extension tube (9) is connected with the fuze switch (8) through threads, the other end is in close contact with the booster (11), the booster (11) is in close contact with the shaped charge (13), and the shaped charge cover (14) is adhered to the surface of the shaped charge (13).