RU2700643C1 - Pyrofixator for docking and detachment of compartments of aircraft - Google Patents

Abstract

FIELD: aviation; astronautics.

SUBSTANCE: invention relates to aircraft and space engineering, and more specifically to stages decoupling units. Pyrofixator for docking and detachment of compartments of aircraft comprises housing fixed on main compartment, a pyrotechnic cartridge, a retractable retainer, a bolt connecting the main and repulsible compartments, a retractable retainer. Latter is made in form of a retaining ring cut, for example, into three independent segments. On the bolt there is a groove, in which segments are arranged, segments are retained in the groove of the bolt by a stop element, the bolt is held by segments in the body through the stop element. Locking element is made in form of two clamp sectors. These sectors are connected by axis and are tightened by pyro-bolt, at that on one of clamp sectors there is a fixing ledge.

EFFECT: enabling the design simplification.

1 cl, 4 dwg

Description

Pyrofixer for docking and undocking of aircraft compartments.

The invention relates to aircraft and rocket technology, to the designs of the fuselages (hulls) having undocked compartments (steps).

A device for fixing the compartments of an aircraft is known (see Utility Model Patent No. 153012), adopted as a prototype, comprising a main compartment, a push-away compartment, a housing fixed to the main compartment, a squib, a retractable latch and a retaining element supporting it, a bolt connecting the main and repelled compartments, a sliding lock, made in the form of a snap ring cut, for example, into three independent segments, a groove is made on the bolt, in which the segments are placed, the segments are held in a ditch e bolt the sliding piston disposed in the housing, and the bolt is retained in the housing segments through the stopper member.

Common features with the proposed technical solution is the presence of a main compartment, a push-away compartment, an expandable retainer, made in the form of a bolt connecting, for example, three independent segments of the retaining ring, a bolt connecting the main and repelled compartments, a groove is made in the bolt in which the segments are located.

A feature of this device is the complexity of the design and assembly of the device, high requirements for the accuracy of manufacturing parts (since the seals are mounted on two different parts), increased dimensions due to the presence of a fixed body and the placement of the squib outside the case, the possibility of turning segments and jamming of the device, since segments after the device is triggered are located in a closed cavity between the body and the bolt groove, the need to use a high power squib due to low loschadi the shifted piston on which acts the pressure of gases from the cutter. At the same time, great efforts are required to overcome the friction forces between the segments and the movable piston, the force to compress the spring and jam the nut in the housing.

Distinctive features of the proposed device from the prototype is that the functions of the shifting piston are performed by two sectors of the clamp connected by an axis and pulled together by a pyro bolt.

Due to the presence of these distinctive features in conjunction with the known, the following technical result is achieved - the task of simplifying the design and assembly, improving reliability, reducing weight and dimensions is solved.

The proposed technical solution can find application in aerospace technology for unmanned aerial vehicles with booster and detachable compartments and multi-stage missiles.

The pyrofixer for docking and undocking the aircraft compartments is shown in FIG. 1, FIG. 2, FIG. 3 and FIG. four.

In FIG. 1 shows a longitudinal section of a pyrofixer with docked compartments.

In FIG. 2 shows a longitudinal section BB of the pyrofixator.

In FIG. 3 shows a side view of the pyrofixer.

Presented in FIG. 1 pyro fixer contains sectors of the clamp 1 and 2, bolt 3 and segments 4. The sectors of the clamp 1 and 2 are connected on the one hand by the axis 5, on the other hand are pulled together with a pyro bolt 6. The locking protrusion 7 (see Fig. 2) on the sector of the clamp 1 exclusion of unauthorized shifting of the clamp sectors 1 and 2 during assembly and operation.

Pyrofixator works as follows.

The bolt 3 with the installed segments 4, the sectors of the clamp 1 and 2 is screwed into the main compartment 8, while the segments 4 abut against the repelled compartment 9, providing it is pressed against the main compartment 8. When pyrobolt 6 is activated, the sectors of the clamp 1 and 2 are disconnected, which leads to to release segments 4 and bolt 3 - the compartments are released.

In FIG. 4 shows the position of the sectors of the clamp 1 and 2 after the activation of pyrobolt 6.

Claims (1)

A pyro-fixer for docking and undocking the aircraft compartments, comprising a housing fixed to the main compartment, a squib, a retractable latch, a bolt connecting the main and repelled compartments, an expandable latch made in the form of a snap ring cut, for example, into three independent segments, made on a bolt the groove in which the segments are placed, the segments are held in the bolt groove by the locking element, the bolt is held by segments in the housing through the locking element, characterized in that the locking element ent made in two sectors of the collar, and connected in the axis explosive bolts tightened, the clamp on one of the sectors has a locking protrusion.

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