SU1532827A1 - Exciter of impact load - Google Patents

Abstract

This invention relates to a testing technique. The aim of the invention is to expand the operational capabilities by increasing the impact velocity. The pathogen contains a stationary coil 2, inside of which is placed a movable coil 3, a measles head 4 installed in the movable coil 4 and a source of pulsed current connected to the coils. Due to the location of the moving coil inside the fixed one, the mass of the moving part of the exciter is reduced, which makes it possible to increase the acceleration rate of the core-block and thereby increase the impact speed. 1 il.

Description

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The invention relates to a testing technique, namely to a shock load driver.

The aim of the invention is to expand the operational capabilities of the starter. Increases the impact velocity.

The drawing shows the proposed pathogen, a General view.

The shock load exciter comprises a housing 1 coaxially mounted in it a fixed coil 2 and a moving coil 3 placed inside the fixed coil 2, a measles head f placed in the cavity of the moving coil j 3, a damper 5 designed to dampen the speed of the moving coil 3 , mechanical waveguide 6, with the butt end of which the bark connects, control unit 7 connected to windings of coils 2 and 3, and button 8. Control unit 7 includes a pulsed current source, controlled arrester and arrester trigger circuit.

The pathogen works as follows.

When the coil of the moving coil 3 is connected to the control unit 7, the polarity of the applied voltage pulse and the direction of winding of the coil 3 must be taken into account, since a change in the polarity of the voltage on the winding clamps of the moving coil 3 leads to a change in the direction of movement of the moving coil 3 relative to the Fixed coil 2.

In the initial state, the measles-head k and coil 3 occupy the positions corresponding to the maximum distance from the waveguide 6. The head anchor C is set at a distance equal to the optimal gap from the equilibrium position. The coil 3, together with the kor-boy-Com, is set at a certain distance from its final position (the final position corresponds to the reel 3 in the damper 5). In this case, the specified distance is chosen in such a way that the time of movement of the core-block from the initial position to the equilibrium position is equal to the time of movement of the coil 3 from its initial position to the final position. When the button 8 is pressed, the control circuit 7 outputs a pulse of current 55 to the windings of coils 2 and 3.

In the proposed pathogen, the acceleration of the core k-block k is carried out in two 15328, 27

step mode. The first stage is the acceleration of the moving parts of the fixed coil 2, which includes the moving coil 3 and the measles head strike t. The acceleration is carried out by the electrodynamic pull force, which occurs when the windings of the moving and stationary coils 2 and 3 interact.

The electrodynamic force pulls coil 3 into the cavity of coil 2 and informs coil 3 of velocity V ,. Electro30

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the magnetic force pulls the borer k into the cavity of coil 3 and tells it the speed V2 relative to coil 3. The anchor k acquires an absolute speed equal to the sum of the speeds of the first and second stages of the exciter VV, + V2, and interacts with the end of the waveguide 6, creating shock impact. Coil 3 decelerates smoothly when interacting with the damper 5.

Thus, in comparison with the known technical solution, the proposed pathogen, along with the possibility of combining the speeds of the first and second stages, allows reducing the mass of the first stage moving parts by the mass of the core of the fixed coil and the magnetic core of the moving coil and, moreover, apply a more efficient electrodynamic acceleration method first stage. Due to this, an increase in the speed of the first stage is achieved, and consequently, the reproducible speed of the shock loading of the exciter, which leads to an increase in the level of the shock load and, thus, to an increase in the operational capabilities of the exciter.

Claims (1)

Invention Formula A shock load causative agent containing coaxially mounted fixed and moving coils placed in the cavity of the moving coil of a bark and connected to the coils of a source of pulsed current, characterized in that, in order to expand operational capabilities by increasing the impact speed, the moving coil is placed inside the fixed coil . pinch coil 3 speed V ,. Electro the magnetic force pulls the borer k into the cavity of coil 3 and tells it the speed V2 relative to coil 3. The anchor k acquires an absolute speed equal to the sum of the speeds of the first and second stages of the exciter VV, + V2, and interacts with the end of the waveguide 6, creating shock impact. Coil 3 decelerates smoothly when interacting with the damper 5. Thus, in comparison with the known technical solution, the proposed pathogen, along with the possibility of combining the speeds of the first and second stages, allows reducing the mass of the first stage moving parts by the mass of the core of the fixed coil and the magnetic core of the moving coil and, moreover, apply a more efficient electrodynamic acceleration method first stage. Due to this, an increase in the speed of the first stage is achieved, and consequently, the reproducible speed of the shock loading of the exciter, which leads to an increase in the level of the shock load and, thus, to an increase in the operational capabilities of the exciter. Invention Formula A shock load causative agent containing coaxially mounted fixed and moving coils placed in the cavity of the moving coil of a bark and connected to the coils of a source of pulsed current, characterized in that, in order to expand operational capabilities by increasing the impact speed, the moving coil is placed inside the fixed coil .