RU2536942C2 - Onboard command device on missile dummy for take-off development - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention refers to military equipment and may be used for development of missile take-off from container. Onboard command device includes power source, electrically connected to catapult device, first-stage engine, servo units through normally closed switches, switch interacting with dummy outcome sensor, unit of engine start time delay relative to the moment of outcome sensor action, two parallel chains with inverter for supply of electric signal of required polarity to servo units.

EFFECT: providing non-use of control system for take-off and dummy displacement from take-off position.

2 dwg

Description

The invention relates to rocket technology and can be used when practicing the launch of missiles, mainly with engines on liquid fuel. Start can be carried out both from ground launchers and installations that are underwater.

Known experimental missiles that serve to work off the launch (US patent No. 3075301, 3075302, 3120709).

In these experimental missiles, imbalance is used to prevent the layout from falling onto the launcher, which begins either after the layout leaves the launcher shaft or after the layout leaves the water.

The well-known experimental rocket (see E. Burgess, "Long-range ballistic missiles", translated from English, M. Voenizdat, 1963, pp. 61-62) has a weight-sized missile model, a propulsion system of the launch stage with a limited fuel supply, and controls and management system. Within five seconds of an active flight, this rocket flew along a programmed path to a height of 600 m and fell into the sea at a distance of 800 m from the launch site.

The experimental rocket with a control system for testing the launch was chosen as a prototype.

It is known that tests at the launch site are carried out with the aim of testing the chosen method of launching the rocket and verifying the correctness of the adopted technical decisions on the design of the rocket and the launcher from the point of view of the dynamics of the launch, in particular, according to the characteristics of the power means of the launch, its launch, and ensuring an unstressed exit of the rocket from launcher, the formation of commands to start and shut off the engine of the first stage, ensuring the withdrawal of the experimental rocket (layout) from the starting position with subsequent landing (splashdown) in a given zone.

It can be seen from the foregoing that the use of experimental missiles with a standard control system for testing the launch, both from a technical and especially from an economic point of view, is impractical.

Firstly, the number of tasks solved by the control system at the launch site is insignificant and they are relatively uncomplicated in comparison with the full amount of tasks assigned to the control system at subsequent phases of the flight and, secondly, its use significantly increases the cost of this test phase.

The objective of the present invention is to develop an on-board command device mounted on an experimental rocket (layout), which without using a control system allows you to form teams to use all the systems necessary to ensure the start of the layout, and thereby solve the technical problems in this section of the movement.

This problem is solved in that in order to develop a catapulting method of launching onto a known weight-and-weight model of a rocket having, like on a rocket, a catapult device (for example, a powder pressure accumulator), a first-stage engine and steering machines of engine controls, an on-board command device is installed instead of the control system containing a power source electrically connected to power starting means and steering machines.

In the proposed device, the power source is electrically connected to the ejection device, the first stage engine and steering machines through installed switches with normally open contacts, on the output electrical circuit of the power source, a switch is used that interacts with the layout output sensor located in the area of the upper end of the launch container in the electric the communication circuit with the engine has a time delay unit for starting it relative to the moment the output sensor is triggered, for Two parallel circuits were introduced to steering cars of an electric signal of the required polarity, one of which is connected to a signal inverter, and shear pins (locks) are mounted on the rods of steering cars, initially holding the steering bodies in the zero position, and mechanical limiters of their movement during further movement of the layout .

The drawing schematically depicts an on-board command device and its functional connections with the energy means of launch, where:

1 - launch container;

2 - the layout of the rocket;

3 - ejection device;

4 - governing bodies;

5 - engine of the first stage;

6 - pallet with obturation belt;

7 - supporting-leading belt layout;

8 - output sensor;

9 - steering car;

10 - steering gear stock;

11 - mechanical limiters;

12 - shear pin;

13 - clamping screws;

14 - electric power source;

15, 16, 17, 18 - switches with normally open contacts;

19 - block time delay engine start;

20 - inverter;

21 - electrical connection.

The presence of a pallet imposes severe restrictions on the possibility of deviation of the controls from the point of view of ensuring its shock-free separation from the layout. Therefore, in the designs of the pallet with a tight layout, the controls are fixed in the zero position until it is separated.

The proposed device operates as follows.

Before starting the layout 2, the magnitude and sign of the deviation of the control elements 4 of the engine 5, as well as the operating time of the engine, which are used for the practical implementation of the withdrawal of the layout into the specified drop zone, are determined by the size of the specified (allocated) drop zone and the known direction of removal.

Then, the controls are fixed in the zero position by installing on the rods 10 of the steering machines 9 shear pins 12 and at the same time the mechanical stops 11, which limit the deviations of the controls to the obtained angle values, are fixedly fixed using clamping screws 13.

Tanks layout fill the necessary amount of fuel in accordance with the selected engine operating time.

Depending on the sign of deviation of the controls, the contacts of the switches 15 or 16 are closed.

In the time delay unit for starting the engine 19, the value of this delay is set relative to the moment the output sensor 8 is triggered, which is determined from the condition that the pallet is separated before the engine flows and the subsequent impact of the engine jets on the launcher in the process of reaching full thrust is excluded.

Next, the layout is launched. To do this, the contacts of the switch 17 are closed and the electric signal from the power source 14 is fed to the ejection device (for example, a pressure powder accumulator) 3, starting it, the layout is exited from the container 1 with a given speed range.

The exit sensor 8 has a protruding movable (spring-loaded) part, which, in a collision with the support-leading belts of the layout 7, goes into the niche of the container 1, and after they pass, the sensor takes its initial position. In the case of contact of the sensor with the switch 18, its contacts are closed (operation of the output sensor) and the electric command current from the power source is supplied to the input of the time delay device for starting the engine 19 and to the steering machines 9 through circuits with closed switches 15 or 16.

Before the appearance of combustion products of the engine, the pallet 6 is separated from the layout.

From the moment the steering machines enter the operating mode under the influence of a control electric signal, the controls are released by breaking the shear pins 12 by the rods 10 of the steering machines 9, then the controls are deflected to the installed mechanical stops 11 with their subsequent holding on the stops due to the efforts developed by the steering by cars.

With the help of the controls deflected to mechanical stops, the layout is deployed in the direction of withdrawal. At a certain point in time, the engine is stopped and after movement in the descent section, the model will reach a predetermined drop zone.

Using the proposed device allows without the use of a control system to ensure the development of the start method and reliable withdrawal of the layout from the starting position.

So, for example, for a ballistic missile with a first-stage engine having several movable chambers with swing axes in the rocket stabilization planes, by deflecting two chambers in the pitch plane to mechanical stops set at an angle of 1.3 degrees and with an engine operating time of 7 seconds provides the landing of a missile model in a given area, at a distance of 1210 m from the launch point. In this case, a time delay of starting the engine is used, equal to 0.3 seconds from the moment the pickup exit sensor triggers from the launch container.

Claims (1)

An on-board command device for practicing the method of launching a rocket from a launch container, by using launches of a weighted model of a rocket having, like on a rocket, a catapult device (for example, a powder pressure accumulator), a first-stage engine and steering gears of controls containing a power source electrically connected with energy starting means and steering machines, characterized in that in it the power source is electrically connected to the ejection device, the engine of the first stage and the steering by machines through installed switches with normally open contacts, a switch is used on the output electrical circuit of the power source that interacts with the layout output sensor located in the region of the top end of the launch container, a block for the time delay of its launch relative to the moment the output sensor is triggered is installed in the electrical circuit for communication with the engine , when an electric signal of the required polarity is fed to the steering cars, two parallel circuits are introduced, in one of which an invert p signal, and on the rods of the steering machines mounted shear pins, initially holding the controls in the zero position, and mechanical stops for their movement during further movement of the layout.

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