SU69284A1 - Three-position unpolarized rotary electromagnetic mechanism - Google Patents

Description

The subject of the invention is a ultra-positioned, unpowered rotary electromagnetic mechanism for use in telemechanical systems.

It consists of a hollow cylindrical magnetic core — and the cores, coils, and cores placed in its bore. The latter is rigidly connected to the rotating core of the coil. The magnetic core and the measles are made multipole with a small interstitial gap, which provides an increase in torque and a reduction in the dimensions of the mechanism. Bringing the core from the media, its position to one or another extreme fixed position is carried out by the magnetic flux of the main coil, but to make this transfer it is necessary to turn the measles slightly. ; turn in the appropriate direction. In order to carry out said preliminary displacement of the core, according to the invention, two

electromagnet having common auxiliary measles, rigidly connected with the core.

The principal design of the proposed electromagnetic mechanism is illustrated in the drawing. FIG. 1, the mechanism is shown schematically in a perspective view with a partly removed magnetic conductor; FIG. 2 shows an end view (from the side of the core), FIG. 3 is a side view in partial longitudinal section.

A cylindrical magnetic core / forms a stator, in the bore of which are placed the main coil 2, the rotor-toothed measles 3 and the core 4 of the coil. Anchor 3 is rigidly connected to the core 4, as shown in FIG. I or with a part of it (Fig. 3).

The rotation of the core 3 in one direction or the other and installation in a fixed position is carried out by slightly pre-rotating it from one of the two electromagnets 6 and 7 and the final rotation by the action of the power coil 2.

In order to carry out a preliminary rotation, the core 4 is attached with the help of a bracket 8 common to electromagnets b and 7

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auxiliary measles 9. The latter is normally in a neutral position between two U-shaped plates, Yu VL P, freely seated on the axis of the device and the pressing springs 12 to the fixed support bracket 13.

When excited, an electromagnet 7 or 8 attracts the measles 9 and rotates the clip 5, and with it the core 4 and the measles, while the poles of the core are displaced from the neutral position. After that, the magnetic flux of the power coil 2 comes into action and turns the measles 3 into a position in which the poles of the latter stand against the poles of the magnetic circuit 7. These positions of the core correspond to those shown in FIG. 2 by a dotted line of positions 9, and 9 of the auxiliary box 9.

Thus, the mechanism can have three working positions:

1) the average, when the circuit of the coil 2 and electromagnets 6 to 7 are open,

2) one extreme - with the passage of current through coils 2 and (5 and 3) the other extreme - with the passage of current through coils 2 and 7.

Coils 2, (5 and 7 can be included in various ways, for example.

as shown in FIG. I, each coil 6 to 7 can be connected in series with coil 2; in this case, chains 6–2 or 7–2 can be formed, which leads to the rotation of the core 3 to the right or left. However, it is possible to power the power coil 2 from a separate current source, and to impulse signals to the electromagnets (5 and 7, which causes a similar action of the mechanism.

Subject invention

A three-position, unpolarized rotary electromagnetic mechanism consisting of a hollow cylindrical magnetic core and a core, coil and core in its bore, made with several pole lugs and rigidly connected to a rotating core, characterized in that in order to convert the core of the main coil into fixed position by preforming it slightly, breaking the symmetrical arrangement of the core relative to the magnetic circuit, two electromagnets are used, having a common resistive measles, rigidly bonded to the core.

FIG. 2

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