RU2396509C1 - Detonation splitter in impact-wave tubes (iwt) - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: detonation splitter in IWT consists of casing, insert and cover. Proposed splitter does not comprise special ignition charge. Sealing steeped insert seals n-th amount of IWT over their side surface and constricts their sift at certain distance from the case inner surface. Insert is made from rubber mixes that feature average oil-and-petrol resistance and n holes. Outer thread smooth-bottom cover features either semi-spherical or paraboloidal shape. Case and cover can be made from plastics and comprise jointing thread.

EFFECT: safe design of IWT switching and initiating device with splitting to n tubes, reliable initiation.

5 cl, 2 dwg

Description

The invention relates to means for initiating and transmitting an explosive pulse, in particular to switching devices with branching and initiation of shock wave tubes (UHT).

Industrial use is in the mining industry for blasting (in mines, quarries, opencasts). Detonation splitters are designed for the successive detonation of fighters due to the branching of the movement of the shock wave impulse.

For detonation wiring in a non-electric initiation system, a UVT network branching device is required. Usually, surface shock-wave detonation initiation systems are used for this, which is generated by detonation of detonating cords or detonator caps, an igniter-capsule initiation system, or an electric discharge through the end of the shock wave.

The closest analogue is a splitter of a fire-retardant cord (patent RU No. 75655) - an incendiary paper cartridge (ZP-B), in the case of which there is an igniter composition, into which several segments of a fire-retardant cord (OSH) are inserted end-to-end. However, the incendiary cartridge does not provide reliable initiation of the UHT. Another disadvantage of this device is the danger in handling the splitter due to the presence of segments of the OR and ignition composition having high sensitivity, as well as the inability to operate the structure in an aqueous environment.

The technical result of the invention is the creation of a safe design of a device for switching and initiating UHT with branching into n tubes, which ensures reliable initiation of UHT.

The technical result is achieved by the constructive implementation of the switching device and the initiation of the UHT with the branching of the tubes without the use of an electric pulse and explosives.

The proposed design and technological solution differs from the previous ones in the design of the splitter, in which there is no special incendiary composition.

A bundle of sealed shock wave tubes along the lateral surface with a rubber seal is placed in the housing, the schematic device of which is illustrated in the drawing, where

1 - body with internal thread;

2 - step liner made of rubber mixtures of medium oil resistance with the required number of n holes;

3 - cover with external thread and smooth parabaloid bottom;

4 - also to the device are connected through the openings of the insert n-th number of UHT.

The principle of operation of such a device is that the shock wave impulse from one of the tubes, initiated by any method, affects the flow of products of the process occurring in the UHT to other UHT. This is achieved by the fact that the flow of reaction products initiating the UHF flows into a confined space with an air gap of a hemispherical (paraboloid) shape, elastically reflecting from it, acquires an impulse that is at least 2 times (under ideal conditions 8) greater than the incident, forming a wave initiating the n-1 of the remaining shock waves, while the initiated shock waves also give the same additional impulse when a shock wave propagation occurs in them.

As an implementation of the proposed detonation splitter device in the high-voltage circuit, a detonation splitter device in the high-voltage circuit is manufactured, where the number n, which means the number of high-voltage cylinders, is 7. The test results showed reliable initiation of 6 segments of the high-voltage circuit. Also, the test results showed the tightness of the structure and the performance of the system when immersed in water up to 1 m.

Claims (5)

1. The detonation splitter in the UHF, consisting of a housing, a liner and a cover, characterized in that it does not contain a special incendiary composition, and a sealing step liner provides a seal on the lateral surface of an nth number of UHTs and limits their movement at a certain distance from the inner surface of the housing. 2. The splitter according to claim 1, characterized in that the liner is made of rubber mixtures of medium oil resistance with the required number of n holes. 3. The splitter according to claim 1, characterized in that the cap with an external thread and a smooth bottom is hemispherical or paraboloidal. 4. The splitter according to claim 1, characterized in that the housing and cover can be made of plastic. 5. The splitter according to claim 1, characterized in that the housing and the cover may contain a connecting thread.