SU1408461A1 - Electromagnet - Google Patents

Description

(21) 4206630 / 24-07

(22) 03/09/87

(46) 07.07.88. Bul Number 25

(71) Leningrad Electric Machine Building Association Electrosila

them. S.M.Kirov

(72) Yu.F.Bratanchuk, V.P.Gorenshev, B.N.Kosharovsky and I.L. Teterina

(53) 621.318.3 (088.8)

(56) USSR Author's Certificate No. 826428, cl. H 01 F 7/08, 1981.

USSR Author's Certificate No. 773748, cl. H 01 F 7/08, 1979.

USSR author's certificate number 1108514, cl. H 01 F 7/08, 1982.

(54) ELECTROMAGNET

(57.) The invention relates to electrical equipment and may be

used as an executive or interim body. The purpose of the invention is to increase vibro-shock resistance and reduce dimensions in the transverse direction. The device contains a poland core, a rod 7, working measles (OA) 6, additional measles (OA) 8, control windings 3,4, a return spring 5, two brackets 9,10 and a lever mechanism 11. In the cavity of the core 2 there are OA 6 and DYN. V. OC 6 is rigidly fixed on the stem 7. DL 8 is connected to the clip 9 and mounted on the stem 7 with the possibility of movement relative to it. The lever mechanism 11 consists of two elements that are connected to the brackets 9 and 10. 3 Il.

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I The invention relates to electric power engineering (vibration-proof and low-magnetic electric apparatus) and can be used as an executive or intermediate body.

The purpose of the invention is to increase vibration resistance and reduce the dimensions of the electromagnet in the transverse direction;

: FIG. 1 shows the solenoid JB position Disconnected, cut; on 1FIG. 2 - the same in the On position. in fig. 3 - electromagnet, general {view.

I The electromagnet consists of a case 1 | of a hollow core 2 with windings 3 and 4; controlling a return spring 5,; a working core 6, rigidly fastened to a rod 7, an additional core 8, connected to the rod 7 by means of clamps

9 to 10 lever mechanism 11. i The electromagnet works as follows:

In the initial position, the windings 3: and 4 are de-energized (Fig. 1). Anchor 6 is in the leftmost position of I under the influence of the return spring 15, and the bark 8 is in the extreme right position under the influence of the same spring, which is transmitted to the borer by means of (a lever mechanism which consists of two cross-cutting elements.

When voltage is applied to windings 3 and 4, which can be connected both in series and in parallel, the bark 6 and 8 are attracted to the hollow junction box 2 (Fig. 2) moving towards each other. At the same time measles 8

acting on the rod 7 through the lever mechanism 11 in such a way that its force is combined with the force created by the rim 6.

When winding 3 and 4 is removed from the voltage, the cores 6 and 8 return to the initial position (Fig. 1) under the action of a return spring.

When an external dynamic load is applied to the electromagnet (Figs. 1 and 2), directed along the longitudinal axis of the electromagnet, the cores 6 and 8, having equilibrium masses, receive the same dynamic forces, but thanks to the lever mechanism 1 1 - the effect of these forces on the rod 7 is fully compensated than vibro-shock resistance is achieved.

R

0

five

To obtain low magnitude, i.e., the minimum value of external magnetic fields created by an electromagnet, the hollow core 2 (Fig. 1) is made in the form of a symmetrical sleeve having two identical recesses, in which windings of identical magnitude are placed counter

The technical and economic advantages of the proposed technical solution include the following;

ensuring the vibration resistance of an electromagnet without the use of any special devices that, in known constructions, do not participate in creating a useful effort;

provision of a low magnetic electromagnet, i.e. expansion of the field of application, without any additional compensation devices, which in known constructions do not participate in the creation of useful effort;

reducing the size of an electromagnet by about two times due to a decrease in the diameter of the winding by about 1.4-1.5 times

Claims (1)

Invention Formula An electromagnet, comprising a housing, a hollow core with control windings, working bark, rigidly fixed on the rod with a possibility of movement in the core cavity, and an axial spring, characterized in that, in order to increase vibro-impact resistance and reduce dimensions in the transverse direction, it is equipped with an additional rem, brackets with bends set so that the bends are parallel to the rod, and a lever mechanism, which consists of two intersecting elements, the longitudinal axes of which lie in parallel x planes, and the axes of rotation are in one line and pass through the middle of each of the indicated elements and are fixed in the housing, each of the elements of the lever mechanism being hinged at one end with the bend of one of the specified brackets, and the other end with the bend of the other bracket , the core cavity is made in the form of two coaxial equal parts, in one of which 3U084614 Additional measles is located, and from the clips it is installed on the rod with a potential in another - working measles, with the possibility of moving relatively additional measles connected to one of them. 7 % 7 // phi5.3