RU2655978C1 - Pyrolock - Google Patents

Abstract

FIELD: rocket and space technology.

SUBSTANCE: invention relates to rocket and space technology and can be used to connect and then disconnect the payload. Pyrolock comprises a spring-loaded device disposed in the fasteners, liners, a device for retaining liners, a housing with apertures and a damping device. Spring-loaded device is made in the form of a sleeve with holes that cooperate with the projections of the inserts. Device for holding the inserts is made in the form of a rod. Body is provided with a hermetically sealed cover. Damping device is made in the form of a wedge made of a plastic material located in the compression cavity. Wedge on one side is rigidly connected to the rod, and on the other hand it interacts with the reciprocal blind hole made in the lid. Pyrolock can have a protective cap mounted on a spring-loaded device.

EFFECT: technical result of the invention is to reduce shock loads, reduce weight and overall dimensions, increase the reliability of the pyro-lock.

1 cl, 3 dwg

Description

The invention relates to the field of rocket and space technology and can be used to connect and subsequent separation of the payload.

Known shockless pyrozamok containing a housing, a spring-loaded bolt with a groove, rusks inserted into the groove, a sleeve locking rusks, a working piston, an intermediate piston (RF patent No. 2102696).

The disadvantages of shockless pyrozamka are the complexity of its design, the presence of intermediate elements that increase leakage, which worsen the dynamics of powder gases, the high kinetic energy of moving parts, which requires any additional devices to absorb it.

Closest to the claimed pyrozam lock is a pyrozam lock containing a spring-loaded bolt with a groove, protrusions and a nut, elements fastened by it, a housing with a bottom in which a hole is made with evenly spaced grooves, a sleeve with a damper, crackers and a rod with a movable spring-loaded catcher and a shank. The housing is equipped with a cover with pyro-cartridges and an inner ring (RF No. 2150413).

The disadvantages of the above pyrozamka are the complexity of its design, the likelihood of rusks falling out of the case into the surrounding space when the pyrozamka is triggered, due to the fact that the speed of the spring, which moves the catcher, necessary to fix the rusks in the case, is much lower than the speed of the sleeve that releases the rusks, by which is affected by the combustion products of the squib.

Also, the disadvantages of this pyrozamka include high shock overloads arising from the impact of moving parts on stationary parts when the pyrozamka is triggered.

The objective of the claimed technical solution is to reduce shock loads, reduce weight and overall dimensions, eliminating the possibility of parts of the pyrozamka entering the surrounding space.

The problem is solved in that the pyrozamock containing a spring-loaded device located in the fastened elements, liners, a device for holding the liners, a housing with holes and a damping device, characterized in that the spring-loaded device is made in the form of a sleeve with holes that interact with the protrusions of the liners, and the device for holding the inserts is made in the form of a rod, the housing is equipped with a hermetically sealed cover, the damping device is made in the form of a wedge of plastic material, p located in the compression cavity, while the wedge on one side is rigidly connected to the rod, and on the other hand interacts with a mating blind hole made in the lid.

2. Pyrozamok under item 1 is characterized in that it has a protective cap mounted on a spring-loaded device.

The claimed design of the lock is illustrated by drawings.

FIG. 1 is a sectional view of a pyrozam lock before separation of elements;

FIG. 2 is a sectional view of a pyrozam at the moment of operation;

FIG. 3 is a sectional view of a pyrozam lock after actuation and separation of elements.

Pyrozamok contains:

1 - housing;

2 - sleeve;

3 - stock;

4 - wedge;

5 - cover;

6 - pin;

7 - inserts;

8 - cork;

9 - ring;

10 - a nut;

11 - washer;

12 - a cap;

13 - spring;

14 - squibs.

The pirozamok contains a sleeve 2 with a spring 13, a nut 10, a cap 12 and a washer 11. Between a nut 10 and a washer 11, a cap 12 is installed that protects the spring 13. The nut 10 rests against the element B through the washer 11. The pirozamok is fixed to the element A with screws through a threaded hole in the housing 1. Inside the housing 1 there is a rod 3 connected to the clip 4 by a threaded connection. At the end of the housing 1 there is a cover 5, designed to jam the wedge 4 with the rod 3 in it and to create a damping compression cavity. Three bushings 7 are installed in the holes of the sleeve 2, held by the rod 3 and the groove in the housing 1. The rod 3 is fixed in the sleeve 2 with a pin 6. There is a plug 8 in the sleeve 2, designed to protect the internal cavity of the sleeve 2 from the ingress of foreign parts. In the housing 1 there are two squibs. To prevent the exit of combustion products in the housing 1 made labyrinth seals.

Pyrozamok works as follows.

When the pyrocartridges act 14, the combustion products under pressure enter the cavity B of the housing 1 and act on the stem 3 with a wedge installed in it and which, moving towards the cover 5, cuts off the pin 6 and releases the bushings 7, after which the rod 3 with the wedge 4 is jammed into cover 5. The presence of a damping compression cavity G allows you to reduce the impact energy. The liners 7 fall into the sleeve 2, and it disengages from the housing 1. The sleeve 2 together with the liners 7 moves to the detachable element B, where it is fixed. The ring 9 mounted on the sleeve 2 prevents the insert 7 from falling out of the sleeve 2.

The claimed technical solution allows to increase the reliability of the lock due to the design features of the inserts, the presence of the protrusion and the ring, which allow them to be fixed in the sleeve and prevent them from falling out after the rod is moved when the switch is activated.

Claims (2)

1. Pirozamok containing a spring-loaded device located in the fastened elements, liners, a device for holding the liners, a housing with holes and a damping device, characterized in that the spring-loaded device is made in the form of a sleeve with holes that interact with the protrusions of the liners, and the device for holding inserts are made in the form of a rod, the housing is equipped with a hermetically sealed cover, the damping device is made in the form of a wedge of plastic material located in the compression strip and, on the one hand, the wedge is rigidly connected to the rod, and on the other hand interacts with a muffled counter hole made in the cover. 2. Pyrozamok under item 1 is characterized in that it has a protective cap mounted on a spring-loaded device.

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