Designation, composition and combat characteristics
Battle unit 9H132 is designed to engage armored ground and low-speed air targets. The combat unit of cumulative action is made in the form of an autonomous unit and consists of the following main elements: hull, cumulative charge, detonator 9E243.
The explosive device ensures the activation of the combat unit against armoured targets, including those behind camouflage and light coverings (bushes, branches, kapron and steel meshes), air targets, urban-type buildings, and field structures (DZOT, DOT, dugout).
Case 14 is made of aluminum alloy and is used to place a cumulative charge in it, connect the adapter 9 with a piezo generator 2 of the fuse device and attach the safety executive mechanism 20 of the fuse device. Cumulative charge consists of two draughts - the upper 15 (okfol) and the lower 18 (A-1X-10) - and is lined with a funnel 13 in the form of a cone of variable thickness. The cumulative charge is placed in the body on a cerezin-paraffin mastic and pressed with nut 11, simultaneously pressed with cone 10. Both draughts are made by pressing. A plastic lens 17 is pressed into the bottom draughts to form a detonation wave front spreading over the charge from the place of initiation. The cumulative charge is cylindrical-conical in shape. The funnel is electrically isolated from the housing by a polyethylene cuff 12. A contact device 16 on the collet connector is inserted into the tail of the funnel. The adapter 9 is screwed into the BC case, in the front part of which the piezo generator 2 of the fuse device is mounted on the thread. A fairing 1 is screwed on the adapter 9, which gives the head part of the projectile the necessary aerodynamic shape.
The 9E243 fuse device is a piezoelectric, instantaneous, safety type device with autonomous ignition and self-liquidation and consists of two parts: the piezo generator 2 and the safety executive mechanism (PIM) 20, connected to each other by switching circuits, the role of which is performed by the elements of the combat unit.
The piezo generator 2 of the fuse device contacts the fairing 1 with its poles when it is deformed through the stop 3 and the funnel 13 of the combat unit through the bushing 8, ring 7, cone 10. PIM 20 contacts the funnel 13 through the glass 12 (Fig. 2), and the body 14 (Fig. 1) through nut 19 and the metallized surface of the body 3 (Fig. 2). The contact of the body 14 (Fig. 1) with the funnel 1 is provided by threaded connection through the adapter 9. The piezo generator of the explosive device is used to convert the mechanical energy of impact when the projectile meets the obstacle into electrical and consists of an insulating ring housing 5, in the sockets of which nine piezo elements 6 are installed. The piezo elements are pressed between the lower ring 7 and the stop 3 nut 4.
The PIM of the fuse device serves as a receiver of electrical energy generated by the piezoelectric generator when hitting an obstacle and initiates a cumulative charge explosion. The PIM consists of the following main components and mechanisms:
- of the safety-trigger mechanism;
- the engine components;
- ignition mechanism;
- long-range trigger mechanism;
- self-liquidation units;
- locking mechanism;
- initiating system;
- cases and auxiliary parts.
The safety pull-out mechanism is used to ensure safety of the HE in service handling and its safe erection when the projectile is launched. The safety and charging mechanism consists of a sleeve assembly with zigzag grooves, consisting of a metal bushing 28 (Fig. 2), pressed with press material 29, two balance sheets 33 with pins 25 pressed into them, two screws 31, two axes 34, bushing 36, spring 30 and two balls 35. In order to improve the safety of the mechanism in service, the zigzag grooves in the sleeve are shifted against each other by half a step.
The engine assembly is used to withdraw the electrodetonator from the detonation circuit of the explosive device in service, transfer it to the combat position in flight and switch electrical circuits after the PIM. The engine assembly consists of the engine 17 with a spark electrodetonator 6, pressed bushing 9, cap 7 with a spring 8, cap 11 with a spring 20, stop 44, pyrotechnic fuse in the bushing 43 with the composition of SC-1.
The ignition mechanism serves for ignition of the pyrotechnic composition of the long-range lift mechanism and self-liquidation unit and consists of the trigger device and the pawl mechanism. The trigger device serves to keep the aperture mechanism in service and consists of levers 23 and 26 with axes 22 and 27 and ball 35 respectively. The escapement consists of a sting 53 with spring 51, a bushing 54 with an inflammable capsule 52.
The long-range trigger is used to ensure the detonation of the explosive device at the distances from 20 to 100 m from the launcher and consists of sleeve 41 with the pyrotechnic composition SC-1 pressed into it.
The self-liquidation unit is used to liquidate the projectile in case of miss or failure of the fuse device and consists of a ring 32 with the trains SB-150 42 and SC-1 40 pressed into it, a detonator cap 48, two metal pads 38, 39 and a cloth gasket 37.
The blocking mechanism is used to ensure the non-initiation of the engine in case of accidental triggering of the ignition mechanism or colouring of the composition in bushing 43 in service, in case of jamming of the projectile in the starting tube or in case of chipping of the projectile, after time expiration not more than 0.2-0.3 from the moment of starting and consists of diving 49 and spring 50.
The initiating system is designed to detonate the projectile when encountering an obstacle and consists of a transfer charge and a detonator. The transfer charge consists of cup 14, cap 16 with BB TEN-2 pressed into it. The transfer charge is placed in bushing 15, which is screwed into the cap 5. The detonator consists of a cap 1 with BB TEN-2 pressed into it and a cap 13.
Case and auxiliary parts. All parts and assemblies are connected to bushing 18 using studs 24 and nuts 47, placed in housing 3 and pressed with nut 4. The stud bolts 24 are the simultaneous retainers for cover 5 and ring 32. The metallized surface of housing 3 and bushing 21 are used to connect the spark electrodetonator 6 to the piezo generator circuit after the PIM detonator is started up. Tightness of PIM is provided by application of sealant UT-34 in threaded connections of nut 4 with housing 3 and glass 12 with nut 4.
Action of the combat unit
When the projectile is launched by linear accelerations of the projectile, the sleeve 28, compressing spring 30, settles down. The subsidence of the bushing occurs slowly (within 0.1 to 0.2 s) due to the braking of the bushing's balance 33, which it is supposed to drive in an oscillating motion by engaging the pins 25 with the zigzag grooves of the bushing. At the same time it is lowered into the extreme lower position by diving 49, compressing spring 50.
After lowering the bushing 28, lever 26 is released, which by turning around axis 27 from the pressure of lever 23 releases the last lever. Lever 23, turning around axis 22, releases sting 53, and it under the action of spring 51 moves down, piercing the ignition capsule 52. The fire force from the primer capsule ignites the pyrotechnic compositions in the self-liquidation ring 32 and in the hub 41 of the long-range trigger mechanism. After burning the train in the bushing 43 engine 17 under the action of a compressed spring 8 squeezes out with its bevel stop 44 and moves to the stop in the bushing 18, cutting off the dives 49.
When moving slide 17, the piezo generator short circuit is opened (cap 11 jumps off bushing 21 and becomes on ring 32, isolated from bushing 21). At the same time, the spark electrodetonator 6 is connected to the piezo generator circuit (the spark electrodetonator cap jumps off bushing 10 and rests on bushing 21). Spark detonator 6 is against the transfer charge in bushing 15. The PIM of the detonator is armed.
When an obstacle is encountered at the poles of the piezo generator, an electrical charge is generated which triggers the spark electrodetonator 6. The spark electrodetonator triggering causes the detonation of VB TEN of the transfer charge in the bushing 15, and the last VB TEN detonation - the detonator in the cap 1, which leads to the detonation of VB draughts 18 (Fig. 1) and 15 of the combat unit with the formation of a cumulative effect, which provides target acquisition.
In case the projectile does not hit the target and the detonator does not operate when the projectile falls to the ground, the PIM of the detonator and BC are self-liquidating.
After the pyrotechnic composition 42 (Fig. 2) is burned in ring 32, the force of fire triggers the capsule-detonator 48, the explosion of which in turn causes the detonation of spark electrodetonator 6, and the last detonation of BB TEN - transfer charge and detonator.