RU2353554C2 - Communication separation device - Google Patents

Abstract

FIELD: aircraft industry.

SUBSTANCE: invention refers to rocket-and-space equipment, and can be used in other branches of national economy, where immediate remote separation of communications (cables, ropes, small-diameter pipes, etc.) is required. Device includes a housing made in the form of two half-housings connected to each other; and electric detonator and long cumulative charge is arranged in each half-housing. Separated communications are located between long cumulative charges. In half-housings there provided are gas outlets the ends of which make wider in direction of the outlet.

EFFECT: providing decrease of mass and dimension performance of the device, and separation of large volume communications.

2 dwg

Description

The invention relates to rocket and space technology, can be used in other sectors of the economy, where instant remote separation of communications (cables, cables, pipes of small diameters, etc.) is necessary.

A device for separating communications [1], comprising a housing with pyrotechnic means installed therein, a piston with a knife, a pin fixed in the housing, and an anvil.

Such a technical solution, having high reliability, has a significant drawback: the limited amount of communications to be cut.

Also known is a device for separating communications [2], comprising a housing with pyrotechnic means installed therein, as well as a piston with a knife and an anvil.

The main disadvantage of such devices is the inability to use them to separate large volumes of communications.

All these devices use a squib and a classic cylinder with a circular piston as a source of cutting force. Typically, these devices are designed to cut either single cables and ropes, or small bundles of cables or parachute slings. In such devices, to create large efforts, a significant increase in the diameters of the cylinder and piston and an increase in the overall strength of the assembly are required. In any case, this leads to an increase in the dimensions and mass of the device. For this reason, devices of this type are not used to cut significant volumes of communications.

The objective of the proposed technical solution is the separation of communications of large volume.

This is achieved by the fact that in the device for separating communications containing a housing with pyrotechnic means installed in it, the housing is made in the form of two interconnected half-bodies, each of which contains an electric detonator and an elongated cumulative charge, while shared communications are located between the elongated cumulative charges , and in the half-shells gas outlets are made, the ends of which expand to the exit.

As indicated above, due to the strong increase in weight and overall characteristics for the separation of a large volume of communications, the use of a known device for the separation of communications becomes unprofitable. In this device, the weight and overall characteristics increase in direct proportion to the square of the diameter of the shared communications, since the body and the piston with the knife of the device have a cylindrical shape. Reducing the size and especially the weight of devices used in space objects (ships, satellites, etc.) is essential, since the cost of removing one kilogram of payload into outer space is about 10,000 US dollars. In addition, duplication of the device may be required to ensure complete separation of communications.

The technical result achieved using the present invention is to reduce the mass-dimensional characteristics of the device.

The invention is illustrated by the figures:

figure 1 - General view of the device;

figure 2 is a view of A.

The communication separation device contains two half-bodies 1, each of which has an electric detonator 2 and an elongated cumulative charge 3. Also, a gas outlet 4 is made in each half-body 1, the end of which 5 extends to the exit from the half-body 1. Half-bodies 1 are connected by fasteners 6, which can be used simultaneously to secure the entire device to the rocket, spacecraft, etc. objects. For this, longer fasteners are needed: bolts or studs. Shared communications 8 are laid between the elongated cumulative charges 3 in the gap 7 of the half-shells 1. The gap 7 is made in the area of the connection plane 9 of the half-shells 1. The device body is made of interconnected half-shells so that communication 8 equipped with terminal connectors can be laid.

The device operates as follows. Electric current is supplied to electric detonators 2, when triggered, elongated cumulative charges 3 are triggered. The cumulative jets formed when the charges 3 are triggered cut communications 8. By the gas outlets 4, excessive pressure from the triggering of charges 3 is removed from the half-shells 1, preventing their destruction. The ends 5 of the gas outlets 4 are made expanding towards the exit from the half-shells 1 in order to avoid the formation of unwanted fragments of the outlet. The power of elongated cumulative charges can be selected for two reasons:

1. A lightweight device is needed with normal reliability.

2. A device with increased reliability is needed, for example, for use on a spaceship with astronauts on board.

In case 1, the cumulative charges are selected such a power at which communications will be separated only when both charges are triggered. The device will turn out to be light, but in case of failure of one electric detonator and a cumulative charge, part of the communications will not be divided. In case 2, the power of one cumulative charge is enough to separate all communications, and the division is completely duplicated. However, in this case, it is necessary to increase the strength of the device, which will lead to an increase in its weight, but not as significant as in known devices.

Thus, the proposed technical solution allows you to create a lightweight, highly reliable device for the separation of communications.

Information sources

1. Kolesnikov KS, Kozlov V.I., Kokushkin V.V. "The dynamics of the separation of aircraft." M., "Engineering", 1977, S. 32.

2. Auxiliary systems of rocket and space technology. Translation from English, Moscow, Mir, 1970, p. 129.

Claims (1)

A device for separating communications, comprising a housing with pyrotechnic means installed in it, characterized in that the housing is made in the form of two interconnected half-bodies, each of which contains an electric detonator and an elongated cumulative charge, while the shared communications are located between the elongated cumulative charges, and gas outlets are made in the half-shells, the ends of which expand to the exit.

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