RU196192U1 - Pyrotechnic fuse response time monitoring device - Google Patents

Abstract

The utility model relates to the field of armament, specifically to devices for conducting tests for the time of operation of pyrotechnic fuses (stoppers) of ammunition. The pyrotechnic fuse response time control device includes a stand for installing a fuse and powder addition, an electric lighter for igniting the powder, an electronic stopwatch for measuring the response time, a photoelectric sensor connected to the start input of the electronic stopwatch to record the ignition time and issue a trigger signal to the electronic stopwatch. A load of electrically conductive material is installed on the fuse stopper, the weight of which is equal to the force acting on the stopper in the product during cocking, connected by a conductor to the stop input of the electronic stopwatch. The other surface of the load is closed to a contact screw connected to the stop input of the electronic stopwatch, forming a closed electrical circuit of the stop input. The utility model improves the quality and reliability of the control of the main parameter of the pyrotechnic fuse. 2 ill.

Description

FIELD OF TECHNOLOGY

The claimed technical solution relates to the field of weapons, specifically to devices for conducting tests for the duration of the operation of pyrotechnic fuses (pyrotechnic stoppers) of ammunition.

BACKGROUND

Checking the response time of the pyrotechnic fuses for projectile and missile fuses is in most cases carried out by measuring the burning time of the pressed pyrotechnic composition by the photoelectric method at the UVG-1 installation or similar (USSR copyright certificate No. 172653). With this measurement method, the actual operating conditions of the fuse in the product are not taken into account when, at the moment the fuse is cocked, the stop assembly exerts pressure on the fuse stop. If the pyrotechnic composition is not densely pressed in, there are cases of premature fuse operation due to the failure of the unburnt structure by the stopper under the pressure of the cocked unit. When pressing pyrotechnic compositions into the fuse housing, various design solutions are used to hold the press-in more firmly until the composition is completely burned, for example, RF patent No. 2285894 for the invention “Pyrotechnic moderator”.

The task of reliable measurement of the response time of the pyrotechnic fuse is solved by measuring the fuse burning time when a force equal to the force created in the product when cocking is applied to its stopper.

To implement the proposed measurement method, a device is used, consisting of a stand for installing the fuse to be checked and adding powder for ignition, an electric lighter to start the fuse, a photoelectric sensor for fixing the start of combustion (start) included in the start circuit of the electronic stopwatch, a load with a weight equal to the pressure the stopper in the product, which lies with one end on the stopper, and closes with the second end to the contact screw, creating a stop circuit for the electronic stopwatch, which breaks when lowering the load at the moment of fuse, mounting plates and mounting parts of the device.

The design of the nodes of the device is extremely simple and does not cause technical difficulties in execution.

The technical result of the utility model is to improve the quality and reliability of the control of the main parameter of the pyrotechnic fuse.

DISCLOSURE OF A USEFUL MODEL.

The utility model is illustrated by the description and drawings (Fig. 1, 2).

The structure of the device includes (Fig. 1): strap 1 for installing the studs 16 and stand 2, on which the tested fuse 3 is installed; electric lighter 4; powder bedding 5; strap for fixing the load 6 with the set screws 7; load 8 with contact tab 9; the strip 10 and the sleeve 12 with the contact 11, mounted on the strip with a nut 13; contact screw 14; nuts 15 and studs 16 securing the device; photoelectric sensor for fixing the start 17; electronic stopwatch 18. The sensor is installed opposite the stand 2 in the required place. The fuse device 3 is illustrated in FIG. 2, where 19 is the body, 20 is the stopper, 21 is the nut, 22 is the pyrotechnic press fitting.

IMPLEMENTATION OF A USEFUL MODEL.

In the initial state, the load 8 rests on the stopper 20 of the fuse 3 and presses on the stopper with its weight equal to the force acting on the stopper when cocking the product. The contact screw 14 is closed to the load 8, while the stop circuit of the electronic stopwatch 18 is shorted. The required position of the load 8 is regulated by the movement of the strap 6 and the screw 14.

When igniting powder bedding 5 with an electric lighter 4, the photoelectric sensor 17 starts the electronic stopwatch 18. After the pyrotechnic press 22 is burned, the stopper 20 lowers with the load 8, breaking the stopping circuit of the electronic stopwatch 18. The electronic stopwatch will record the response time of the pyrotechnic fuse 3.

Claims (1)

A device for monitoring the response time of a pyrotechnic fuse, comprising a stand for installing a fuse and adding powder, an electric lighter for igniting the powder, an electronic stopwatch for measuring the response time, a photoelectric sensor connected to the start input of the electronic stopwatch to record the ignition time and output a trigger signal to the electronic stopwatch, characterized the fact that a load of electrically conductive material is installed on the fuse stopper, whose weight is p Aven the force acting on the stopper in the product during cocking, connected by a conductor to the stop input of the electronic stopwatch, the other surface of the load is closed by a contact screw connected to the stop input of the electronic stopwatch, forming a closed electrical circuit of the stop input.

Images