SU1681369A1 - Motor - Google Patents

Abstract

This invention relates to special engine types. The electric motor contains a rotor mounted on the shaft, as well as a dielectric stator, on which the sector conductor electrodes are mounted, separated by dielectric gaps. The rotor is made in the form of a rigid circular base with a layer of conductor deposited on it, over which a flexible dielectric shell is worn, connected to the rotor shaft without the possibility of rotation of the shell relative to the shaft. Electrorheological fluid is placed between the conductor layer on the solid circular rotor base and the flexible shell, while the stator electrodes are connected to the phase-shifting device. The device provides stable operation at low speeds, high torque, reliable adjustment of the rotational speed, high tightness and can be used in the production of automation equipment and instrument-making. 1 ppt f-ly, 4 ill.

Description

The invention relates to special types of electric machines and can be used to create automation equipment and in instrument making.

FIG. 1 shows the engine, cross section; in fig. 2 - the same, longitudinal section; in fig. 3 - a fragment of the engine with powered electrodes; in fig. 4 is an electrical circuit for supplying motor electrodes.

The electric motor (FIGS. 1-4) contains a stator 1 and a rotor 2. The stator 1 is made on a dielectric base, on which pie-conductor electrodes 3 are mounted (or deposited), separated by dielectric gaps. The electrodes 3 are connected to the phase shifter 4 (Fig. 4). Distributors, multiphase generators or a three-phase network can be used as the phase shifter 4. The rotor 2 is made on a rigid circular non-magnetic base 5 (in the form of, for example, a cylinder) on which an annular layer of the conductor 6 is applied. The base 5 with the conductor 6 is enclosed in a flexible dielectric sheath 7, which can be connected to the rotor shaft 2 without rotation around the shaft axis (the flexible sheath 7 can be attached to the rotor shaft 2 either directly or through a solid base 5; in the latter case, the flexible sheath 7 is attached to the ends with a solid base 5, which is rigidly connected to the rotor shaft 2). Inside the rotor 2 between the solid base 5 with the conductor 6 and the flexible dielectric sheath 7 is placed electrorheological fluid 8.

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The motor uses mainly light and technological dielectrics (polymers, plastics, rubber), the use of metals is very limited (electrodes 3 and conductor layer 6). Such an electric motor makes it possible to achieve small weight and dimensions.

The flexible dielectric shell 7 is made of rubber or elastic polymers. The shell 7 may be smooth, rough or corrugated.

The motor works as follows.

When power is applied to the electrodes 3, an electric field is created in the motor. Due to the alternate feeding of the electrodes 3 from the switchgear 4, the electric field of the engine is of a running or rotating nature. For example, it is possible to create traveling multi-pole floors by powering simultaneously two, four, six, eight, etc. electrodes 3 (Fig. 1.3), one electrode 3 can be simultaneously connected to the plus and the other (adjacent) electrode 3 to the minus of the voltage source. An electric field occurs between one electrode 3 and a layer of conductor 6 (Fig. 1, 3), as well as between another electrode 3 and the same layer of conductor 6. You can power large series of electrodes 3, advancing the phase of the power source around the stator circumference 1. When the occurrence of an electric field between the layer of conductor 6 of the rotor 2 and the energized electrodes 3 (FIG. 3), the electrorheological fluid 8 in this place, i.e. under the energized electrodes 3, begins to swell and press on the flexible sheath 7. An antinode of the flexible rotor 2 (FIG. 3) arises, which engages with the circular stator 1 (or its electrodes 3). Due to the traveling nature of the electric field, the antinode of the flexible rotor 2 also moves. There is a wave coupling of the flexible rotor 2 (its shell 7) with the bore

the stator. The rotor 2 acquires low-speed construction with a large moment.

By changing the switching frequency of the distributor device 4, the speed of slow rotation can also be changed. Opportunity

adjusting the speed of rotation of the rotor by changing the frequency of the device 4 is one of the advantages of this engine. If using device 4 to change the direction of rotation of the floor, then

the motor will go into reverse.

The fluid 8 is inside the rotor 2. which provides the motor with sufficient tightness (the fluid 8 is sealed with the shell 7).

Claims (1)

Invention Formula An electric motor containing a rotor and a dielectric stator, on which are installed sector conductor electrodes separated by dielectric gaps, as well as electrorheological fluid, characterized in that, in order to increase torque, stability of rotation at low speeds, reliability of adjustment of rotation speed and improve engine tightness, the rotor is made in the form of a rigid circular base with a layer of conductor applied on it flexible dielectric sheath connected to motor shaft without the possibility of rotation of the shell relative to the shaft, while the electrorheological fluid is placed between the conductor layer on the rotor and the flexible dielectric shell, and the electrodes 0 stator connected to the phase shifter. eight Fig.Z FIG. 7 J hj FIG. H