RU2539710C1 - Device to fix and separate parts of structure - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: device to fix and separate parts of a structure comprises a lock based on a bolted joint, a pin, a split nut, a nut of a separation mechanism for tightening of a joint of two parts, a separator, a compression spring, a retaining ball, a block, insulators, current-conducting threads, a twisting spring.

EFFECT: invention makes it possible to increase reliability of a connection and to reduce structure weight.

4 dwg

Description

The invention relates to the field of rocket and space technology and can be used, in particular, for connecting structural elements and their rapid subsequent remote separation during operation.

A device for fixing detachable during operation of parts of the product from the housing (RF patent No. 2234005), which contains associated with the detachable parts of the cylindrical housing and installed in the cage with elements that fix the rod connecting the detachable parts.

Closest to the claimed technical solution according to the technical nature and the technical result achieved is a device for fixing and separating parts of the structure (hereinafter referred to as a fixing device), comprising a lock based on bolted connections (RF patent No. 2111905), where the bolted connection is implemented as a bolt with a groove, into which are inserted rusks covered by a movable sleeve.

This device is taken as a prototype of the invention.

When such fixing devices are activated, the energy of the pyrodrives is used to release the bolt, because of which there are additional significant power pulses propagating in the form of vibrational waves with a high frequency and amplitude, which can lead to disturbances in the operation of highly sensitive to shock effects, and the use of pyrodrives increases weight of the fixing device.

The technical problem solved by the present invention is to increase the reliability of the devices of the spacecraft (SC) and reduce the mass of the device.

The problem is solved in that the locking device comprises a lock based on a bolted connection, the pin of which is held by a split nut. The joint of the two parts is pulled together by the nut of the separation mechanism, and the split nut is kept from moving by a separator, which is loaded with a compression spring and is kept from moving through the rod by a ball. The ball is held by a cracker, installed in the hole of the coil and recessed into the annular groove in the rod. The cylindrical surface of the cracker holding the ball is tightly covered by a torsion spring, the ends of which are inserted into insulators held by remelted conductive threads. To operate the fixation device, a torsion spring is used, which is restrained from rotation by remelted conductive threads, which improves the reliability of the KA devices by reducing shock loads when the fixation device is triggered, and also reduces the weight of the structure due to the fact that the fixation device does not contain pyro drives.

The invention is illustrated by drawings, which show:

- figure 1 is a General view of the fixation device with a slice installed between the shared parts of the spacecraft before separation;

- figure 2 is a view a from figure 1;

- figure 3 is a view B of figure 2;

- figure 4 is a view of the fixation device with a cut after separation.

The inventive fixation device structurally consists of two parts: the actuation mechanism of the fixation device 1 (Fig. 1), mounted through an arm 18 to a fixed structural member 20, and a separation mechanism 2, mounted through a sleeve 19 to a movable structural member 21. Both mechanisms are interconnected with a pin 3 screwed into the split nut 4 by thread, the joint of the two parts is pulled together by the nut 5, the split nut 4 (Fig. 2) is kept from moving by the separator 6, which is loaded by the compression spring 7, and is held from movement through the rod 8 by a ball 9 installed in the hole of the coil 10 and recessed into the annular groove in the rod 12. The ball 9 is held by a cracker 11. The cylindrical surface of the cracker 11 as well as the cylindrical surface of the coil 10 are tightly covered by a torsion spring 13, which prevents the cracker 11 from moving and releasing ball 9. The torsion spring 13 is twisted, and its bent ends 14 (Fig. 3) enter the holes of the insulators 15. The insulators are pressed against the recesses in the housings 16 by re-melting conductive threads 17. The ends of the threads are sandwiched between the electric contacts.

The fixation device operates as follows: when current is supplied to the remelted conductive threads 17, they melt, the insulators 15 at the ends of the torsion spring 13 (Fig. 4) are released, the torsion spring untwists and allows the cracker 11 to release the ball 9, the ball leaves the annular groove of the rod 8 and the rod is released, the spring-loaded separator 6 moves the rod and releases the split nut 4, which, under the action of the spring-loaded pin 3, diverges and releases the pin 3, which is captured (together with the spring) by the damping troystvom 22.

The technical effect is achieved through the use of remelted conductive threads as an element of operation of the fixation device, which allows to reduce power pulses when the fixation device is triggered and to reduce the weight of the device.

Claims (1)

A device for fixing and separating parts of the structure, comprising a lock based on a bolted connection, a pin held by a split nut, a nut of a separation mechanism to tighten the junction of the two parts, a split nut that is kept from moving by a separator that is loaded with a compression spring and is kept from moving through the rod by a ball, installed in the hole of the coil and recessed into the annular groove in the rod, and the ball is held by a cracker, characterized in that the cylindrical surface of the cracker of the holding ball is tightly vachena torsion spring whose ends are inserted in bushings held refiner conductive filaments, wherein the fixing device for triggering the torsion spring is used, restrained from rotating refiner conductive filaments, which eliminates shock loading when the device is triggered.

Images