SU150545A1 - Power block of active power corrector - Google Patents

Description

As a power block of active power corrector, usually used are dual, oppositely acting on measles electromagnets. The disadvantage of such a power unit is the static output characteristic, i.e., the dependence of the force acting on the measles on the position of the latter in the air gap.

In order to eliminate this drawback, it was proposed to use a two-phase asynchronous motor in the power block of the corrector, which perceives the electrical signals of the corrector and acts through the profile washer on the forward-moving needle of the hydrosoil.

A feature of the proposed power unit of this type is the implementation of the kinematic connection between the engine and the needle of the spool through a single-stage cylindrical gearbox, driven by the bristle of which is rigidly connected to the rocker that carries the needle of the rotary slide.

The use of a gearbox allows the use of a multi-turn movement of the rotor of the engine to obtain a limited output displacement behind the gearbox and thus provides an opportunity to obtain large forces and greater efficiency of the power unit with a low control current.

The pivoting of the hydraulic gaiter ensures minimal influence of hydraulic friction and reactions of the working agent (oil) on the actuating unit, thus increasing operational reliability.

Fixing the needle in the middle position of the spool is carried out in the proposed power unit with the help of two spiral springs, each of which is pivotally connected to the rocker with one end and reinforced in the block body with the other.

No. 150545-2 -

The drawing shows the power block of the corrector.

The two-phase asynchronous motor 1 has two windings included in the electric power corrector circuitry, one field winding and the other control winding, and is connected through a single-stage spur gear with a rotary needle 2. The gearbox consists of leading gear 3 mounted on the motor shaft , and the driven shchesterna, executed in the form of a segment 4.

The rotary slide valve 2 controls the inlet of the oil under pressure into the cavity of the hydraulic booster of the turbine speed regulator and the discharge of oil from this cavity.

For this purpose, the spool is equipped with a bush with three valves: pressure, drain and impulse line. The needle of the rotary valve is fixed in the rocker arm 5, rigidly connected with the driven bristle segment 4. At the ends of the rocker arm 5 there are springs 6, which are associated with it pivotally with the help of pins 7. The springs ensure proportional dependence of the rotation of the needle on the torque of the electric motor, as well as fix the needle in the middle position by pressing the crust towards the stop corners 8.

The torque of the motor is determined by the magnitude of the control current at a constant, constant excitation current.

Subject invention

Claims (2)

1. The active power corrector power unit using a two-phase asynchronous motor that perceives electrical signals of the specified equalizer and has a kinematic connection with the hydrosoot needle, is characterized in that, in order to obtain large output forces at low control current and increase operational reliability, The communication is carried out through a single-stage spur gear, driven by the bristle of which is rigidly connected to the rocker that carries the needle of the rotary slide. 2. The power unit according to claim 1, characterized in that, in order to fix the needle in the middle position, two spiral springs are used, each of which is pivotally connected to the rocker arm at one end and fixed to the body of the other end. .