SU1453536A1 - Induction motor - Google Patents

Abstract

The invention relates to electrical engineering, namely, asynchronous electric motors with adjustable shear-active parts. The purpose of the invention is to simplify the design. The synchronous motor contains f 9 1 stator core 1, the core of the first part 2 of the rotor with winding 3, the core of the second part 4 of the rotor with winding 5, the common shaft of the rotor 6. The rotor winding rods are interconnected by flexible conductors 7 a shift of 180 el.grad. A spring 8 is located between the parts of the rotor. The rotor part 4 is mounted on the shaft 6 with the possibility of rotation independent of the shaft. At start-up, part 4 of the rotor rotates at the initial moment, and then part 2. This makes it possible to increase the smoothness of the start-up. The difference in resistances of the rods allows more simple means to obtain the required starting characteristics. 1 hp files, 2 Sh1. i (L ;;

Description

The invention relates to electrical engineering, in particular to asynchronous electric motors, controlled by the shift of the active parts.

The aim of the invention is to simplify the design.

FIG. 1 shows a motor with a two-part rotor, a longitudinal cut; in fig. 2 - engine with a torus of two parts.

An asynchronous motor with a two-part rotor contains a stator core 1, a core of the first part of the rotor 2 with a winding 3, a BTO-JJ core of the rotor part 4 with a winding 5, a common rotor shaft 6, the core of the first part of the rotor is rigidly fixed on the shaft, and The second part of the rotor is placed on the shaft with the possibility of free jQ rotation. The windings of both parts of the rotors are interconnected by flexible conductors 7. The cores of the rotor are mechanically interconnected by means of an elastic connection “for example, spring-8 8. The stator core is pressed into the housing 9. Bearing shields 10 and 11 are attached to the motor housing,

Electrodigger works as follows.

In the initial position, when there is no voltage on the stator winding of the engine, the relative shift between the rotor parts, close to 180 hl, is selected from the condition of the moment of moving the core of the second rotor part. When voltage is applied to the stator winding of the motor from inter 30

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the action of the magnetic flux of the stator and currents in the rotor windings creates a torque. Since the core of the second part of the rotor is freely mounted on the shaft, it begins to rotate, overcoming the counter moment of the spring, the angle between the parts of the rotor decreases and, consequently, the current in the rotor winding increases, which leads to an increase in torque. When this angle reaches the required value, both parts of the rotor come into rotation.

The motor allows for starting currents to be limited and a softer starting condition.

Claims (2)

1. An asynchronous electric motor containing stator and rotor magnetic cores, one of the magnetic conductors made of two parts, one of which is installed with the possibility of rotation relative to the other, and the rotor is equipped with a short-circuited winding, characterized in that an elastic element connecting the parts of one magnetic circuit. 2. The electric motor according to claim 1, T is characterized by the fact that the rotor magnetic circuit is made of two parts, and the short-circuited winding rods. One part of the rotor is connected to the rods of the other part of the rotor by 180el flexible wires. hail.