RU2736750C1 - Wedge gate of artillery weapon - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: gate with delayed extraction of tray after firing comprises axis of cranks, opening mechanism with barrel, springs opening and closing. On the crankshafts axis there is a strainer with a roller, which interacts with the cam installed on the cradle.

EFFECT: technical result is higher reliability, avoiding jamming of wedge at reeling.

1 cl, 2 dwg

Description

The proposed technical solution relates to military equipment and can be used in the design or modernization of guns.

Recently, a new direction has appeared in domestic tank artillery - guns with a delayed extraction (ejection of a spent pallet) after a shot.

The shutter in such guns works as follows: when rolling, the opening and closing springs are cocked after rolling, the gun is set to the throw angle; a trap is put forward on the extraction line; the spent pallet is thrown into the trap and removed from the fighting compartment through the opening hatch.

The complication of the bolt design pays off by improving the layout of the fighting compartment, reducing the load on the turret ring, as well as reducing the gas content of the BO.

Excluding the trap from the sweeping radius makes it possible to:

1) increase the length of the rollback (decrease the load on the shoulder strap);

2) to shift the axle of the pins relative to the swinging part of the gun and, thereby, improve the mass characteristics and facilitate the task of balancing the gun;

3) draw the cannon into the BO (reducing the turret imbalance).

The design of the shutter is known (USSR, Inventor's Certificate No. 251252 for application No. 3144768 / 40-23 dated 04/21/1986), in which the shutter springs are cocked when rolling by moving the glass of the opening mechanism, and at the end of the roll, after choosing the gap between the glass and the stem of the opening mechanism , there is a hard start-off of the wedge (start-off, in which the semi-automatic cam runs over the stopped rod at a rolling speed, which is quite high). Pre-starting the wedge is necessary to reduce (remove) the pinching of the wedge by the pallet in order to facilitate the opening spring (s) to open the shutter. At the end of the wedge pulling off, the stop on the cradle with the glass of the opening mechanism is disengaged and after rolling, the opening and closing springs are charged, and each is held by a separate stop, and the opening spring is held through an intermediate piece - "hammer".

After turning off the stop of the opening spring, the latter strikes the rod through the "hammer" with some acceleration and opens the wedge.

As indicated above, the speed of the wedge after a hard start is quite high. The accelerated wedge, through the drive parts, hits the stop of the opening spring (position of the wedge "on hold") and rebounds to close, into the pinched area. To exclude secondary pinching, a special anti-rebound mechanism was introduced, which significantly complicated the design.

Known is another design of a shutter with a delayed extraction (US Pat. RU No. 2311603, F41A 23/28 (2006.01)), similar to the one described above, only without preliminary wedge starting when rolling. The bolt has two opening springs and a fairly large acceleration of the "hammer". The design is efficient for the pressures of powder gases that are agreed upon for it, but it does not have a margin for this factor, and, therefore, no prospects.

The task of the proposed technical solution is to increase the reliability of the shutter operation due to the smooth starting of the wedge, which removes its pinching during the roll.

In the bolt of the artillery gun, which includes a wedge, an axis of the cranks, an opening mechanism with a glass, a rod, opening and closing springs and their stops, a trigger is installed on the axis of the cranks, interacting with its roller with a copier mounted on the cradle when rolling.

The proposed technical solution allows you to perform a smooth preliminary start-off of the wedge when rolling.

The operation of the shutter is illustrated by drawings: FIG. 1 is a diagram of a mechanism with drive elements and FIG. 2 - section A-A of the structure.

The figures indicate: wedge 1 (Fig. 1, crank axis 2, breaker 3 with roller 4 (Fig. 2), stop 5 (Fig. 1) of the opening springs, stop 6 of the closing spring mounted on the cradle 15, stop 7 of the glass and copier 8, details of the opening mechanism - a glass 9, a rod 10, a "hammer" 11, opening springs 12, 13 and a closing spring 14. The moment when the roller 4 (Fig. 2) of the striker 3 meets the copier 8 is shown when rolling.

Shutter operation: when rolling, the roller 4 (Fig. 2) of the breaker 3 runs onto the copier 8 and, rolling along the profile of the copier, turns the breaker and the crank axis 2 (Fig. 1), moving the wedge 1 by the amount of breakaway and thereby reducing its pinching by the pallet ... After the roller leaves the horizontal shelf of the copier, the wedge stands "on hold", resting through the drive parts against the stop 5 of the opening springs 12, 13. With further rolling, the glass 9 is intercepted by the stop 7, and the compression of the shutter springs continues. At the end of the roll-over, the cup 9 is disengaged with the stop 7, and the cup is locked by the stop 6. After the roll-up, the bolt springs are charged. The gun is brought to the extraction angle and, after the trap exits, the stop 5 is released. Opening springs 12, 3 hit the rod 10 through the "hammer" 11 and, turning the axis of the cranks 2, open the wedge 1, throwing out the pallet. The rod 10 at the end of the stroke knocks out the stop 6, and the closing spring 14 returns the wedge to the open position.

A wedge-shaped breechblock with smooth starting, containing a trigger with a roller and a copier, is introduced on products planned for serial production.

Claims (1)

The bolt of an artillery gun with a delay in the extraction of the pallet after rolling, compression of the closing and opening springs of the bolt and preliminary starting of the wedge during rolling, including a wedge, an axis of cranks, an opening mechanism with a glass, a rod, opening and closing springs and their stops, characterized in that on the crank axis is equipped with a breaker, which interacts with a copier mounted on the cradle when rolling with its roller.

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