Magnetic gear

FIELD: electricity.

SUBSTANCE: magnetic gear comprises the following components installed coaxially on a single shaft: a rotor of quick rotation with permanent magnets and pole tips, on the other shaft by means of a non-magnetic disc there is a rotor of slow rotation installed in the form of at least one hollow cylinder, a stator comprising a magnetic core with teeth on its inner surface and at least one hollow cylinder mechanically connected by its one end to the body via a non-magnetic ring, permanent magnets of the rotor of quick rotation are magnetised tangentially and oppositely and are arranged between wedge-shaped pole tips, hollow cylinders of the stator and rotor of slow rotation have alternating ferromagnetic and non-magnetic elements, directed along the axis of rotation, at the same time the gear is equipped with a bearing shield installed on the shaft of the rotor of quick rotation and tightly and mechanically connected to the other end of the hollow cylinder of the stator arranged between the rotor of quick rotation and the hollow cylinder of the slow rotation rotor.

EFFECT: possibility to tightly separate cavities of rotors of quick and slow rotation, improved conditions of accurate assembly and operation of rotors of quick and slow rotation.

3 cl, 3 dwg

 

The invention relates to electromagnetic mechanisms, and particularly to a contactless magnetic gears, and can be used as transfer devices in mechanical systems with a long service life under shock loads and in aggressive or explosive environments.

The known magnetic gearbox containing driving and driven shafts mounted on the control shaft leading element made in the form of a multipolar permanent magnet, located concentric with him annular element of a nonmagnetic material with a through radial slots filled with conductive material, and covering the last gear element (see Patent No. 2082042, publ. 20.06.1997).

Also known magnetic gearbox containing the rotor rapid rotation of permanent magnet rotor slow rotation in the form of a hollow cylinder and the stator magnetic circuit and with teeth on its inner surface (see Author's certificate No. 280142, publ. 01.01.1970).

The disadvantage of these devices is relatively small the transmitted torque.

Closest to the proposed invention to the technical essence and the achieved effect is a magnetic gear containing the rotor rapid rotation with permanent magnets and pole pieces, the rotor slow rotation in the form of a hollow cylinder and the stator, including a magnetic core with teeth on its inner surface and a hollow cylinder, mechanically associated with the housing through a non-magnetic ring, the permanent magnets of the rotor fast rotating magnetized tangentially and counter and are located between the wedge-shaped pole pieces, a hollow cylindrical stator and rotor slow rotation have alternating ferromagnetic and nonmagnetic elements directed along the axis of rotation (see Patent No. 2369955, publ. 10.10.2009).

The disadvantage of this device is a cantilever arrangement of the rotors fast and slow rotation and lack of opportunities hermetic separation of the cavities of the rotors fast and slow rotation. In addition, the cantilever arrangement of the rotors fast and slow rotation does not allow you to increase the size of the gear in the axial direction, and operating modes requires a precise concentric pair of hollow cylinders of stator and rotor slow rotation relative to each other and relative to the rotor rapid rotation, which causes technical problems in providing the necessary radial clearance of the working elements of the rotor and stator.

The technical result, which directed the claimed invention is the creation of the gearbox with the ability hermetic separation of the cavities of the rotor is quickly and slow rotation, as well as in improving the precision Assembly (alignment) and work rotors fast and slow rotation.

The technical result is achieved by the fact that the magnetic gearbox contains a coaxially mounted on the same shaft as the rotor of the rapid rotation of the permanent magnet and pole pieces, on the other shaft through a non-magnetic disk rotor slow rotation in the form of at least one hollow cylinder, the stator including a magnetic core with teeth on its inner surface and at least one hollow cylinder, mechanically connected by its end to the housing through a non-magnetic ring, the permanent magnets of the rotor fast rotating magnetized tangentially and counter and are located between the wedge-shaped pole pieces, a hollow cylindrical stator and rotor slow rotation have alternating ferromagnetic and nonmagnetic elements directed along the axis of rotation, while the gearbox is provided with a bearing shield mounted on the shaft of the rotor fast speed and hermetically sealed and mechanically connected with the other end of the hollow cylinder of the stator located between the rotor rapid rotation and a hollow cylinder rotor slow rotation.

In addition, between the non-magnetic ring and the end face of each of the hollow cylinder of the rotor slow rotation is correct terminal connection or lead icopy node.

In addition, the stator includes, mainly, at least two hollow cylinder, and between the free end of one of these cylinders is not associated with the bearing shield and the magnetic disk can be mounted bearing unit.

The invention is illustrated by drawings, where figure 1 shows a cross section of the magnetic gear; figure 2 is a longitudinal section of the magnetic gear; figure 3-wave magnetic induction and scan hollow cylinders.

Here: 1 - permanent magnets, 2 - wedge-shaped pole pieces, 3 - non-magnetic sleeve, 4 - shaft fast rotating, 5 - magnetic circuit of the stator teeth, 6 housing 7 is a hollow cylinder stator 8 is hollow cylinders of the rotor slow rotation, 9 - slow shaft rotation, 10 - non-magnetic ring, 11 - non-magnetic disc, 12 - bearing shield, 13, 14, 15, 16 - bearings.

A magnetic gear contains a coaxially mounted rotor rapid rotation, slow rotor speed and the stator. The rotor rapid rotation includes a rectangular vysokokoertsitivnye permanent magnets 1 (for example, samarium-cobalt or alloy Neodym-iron-boron), magnetized tangentially and counter located between the wedge-shaped pole pieces 2 with the convex surface facing to the working gap, and a non-magnetic sleeve 3 to fit on the shaft 4 rapid rotation.

The rotor slow rotation is a hollow cylinder 8, mechanically connected with the shaft 9 of the slow rotation of the magnetic disk 11 and having alternating ferromagnetic and nonmagnetic elements directed along the axis of rotation.

On the shaft 4 of the rotor rapid rotation through a bearing 14 mounted bearing shield 12, sealed and mechanically associated with the other end of the hollow cylinder 7, which is located between the rotor rapid rotation and a hollow cylinder 8 of the rotor slow rotation.

The shaft 4 of the rotor rapid rotation and the shaft 9 of the rotor slow rotation associated with the housing 6 by bearings 13. Hollow cylinders 8 of the rotor slow rotation based on the non-magnetic ring 10 through the bearing unit 15 and the hollow cylinder 7 of the stator bearing unit 16 is associated with a non-magnetic disk 11.

The angular sizes of all teeth and ferromagnetic elements are hollow cylinders 7 and 8 are identical. The ferromagnetic elements are hollow cylinders 7, associated with the stator, have angular position coinciding with the angular position of the teeth of the magnetic circuit is of the commutator. The number of ferromagnetic elements are hollow cylinders 7 and 8, associated with the stator and rotor slow rotation, differ within one pole of the dividing unit.

On the face of each of the open sides of the hollow cylinders 7 and 8 of the stator and rotor slow rotation, not associated, respectively, with non-magnetic ring 10 and the disc 11 mounted bearings 16 and 15, respectively, providing concentric mates and testing by internal and external adjacent surfaces.

A magnetic gear operates as follows.

The permanent magnet 1 of the rotor rapid rotation and pole pieces 2 create in the working gaps sinusoidally distributed magnetic induction. The first maximum value of the magnetic induction can be achieved in the middle of the pole pieces 2. In the working clearances in front of the means of permanent magnets 1 radial component of magnetic induction equal to zero.

When the rotor rotation fast rotation speed ω1wave magnetic induction rotates with the same angular velocity. When this hollow cylinders associated with the rotor slow rotation, in the absence of load torque will occupy a position in which in the zone of maximum magnetic induction module ferromagnetic elements are hollow cylinders 8 occupy an angular position with the incident with the angular position of the hollow cylinder 7 and the teeth on the magnetic circuit of the stator 5. In the zone of neutrals ferromagnetic elements are hollow cylinders 8 are located opposite the non-magnetic elements are hollow cylinders 7 and the slots of the magnetic core 5.

When the rotation of the rotor rapid rotation on one pole division of the slow rotor rotation will turn on one subzone division. Its final drive ratio magnetic gear is equal to the number of ferromagnetic elements are hollow cylinders 8 of the rotor slow rotation per one pole division.

Figure 3 shows wave magnetic induction B(β) and the reamer bushings. The teeth of the magnetic circuit of the stator 5 and the ferromagnetic elements of the hollow cylinder 7 is stationary. In the zone of maximum amplitude of the magnetic induction all ferromagnetic elements and the teeth are located against each other.

In areas of neutrals, corresponding to the midpoints of the magnets 1, the ferromagnetic elements are hollow cylinders 8, associated with the rotor slow rotation, are located opposite the non-magnetic elements of the hollow cylinder 7 and opposite the slots in the magnetic core 5. When the rotor rapid rotation will turn on one pole division, the poles N and S will be swapped, and the hollow cylinder 8 rotates through one ferromagnetic element (subzone division). Figure 3 shows the case when the gear ratio is 8, i.e. the rotor slow rotation rotates at a speed

ω21/8

The point p is expressed on the slow shaft rotation, is determined by the formula

With the introduction of the bearing shield 12 is fixed cantilever position of the rotor fast speed and improves its work (figure 2). The shield 12 enables sealing of the cavities of the rotor fast and slow rotation for torque transmission in aggressive or explosive environments.

The introduction of the bearings 15 and 16 fixes the console position of the hollow cylinder of the stator and rotor slow rotation, which allows to improve their working conditions and makes it possible to increase the axial length of the gear.

The lack of gear is the elasticity of transmission. When increasing the load torque on the shaft slow rotation it lags at some angle from the position corresponding to idling.

A magnetic gear has no mechanical contact between moving parts, it does not wear out, quiet in operation, has a long service life, defined by bearings that allow the shock load, since the communication between the shafts through the magnetic field. Hollow cylinders are large transmitted torque while maintaining size.

With the introduction of the bearing shield 12 and sealed to perform together with the inner hollow cylinder 7 of the stator, bearings 15, 16 on the end surface of the hollow cylinder 7 of the stator and rotor ment the frame rotation obtained magnetic gearbox with sealed separation of the cavities of the rotors fast and slow rotation, by ensuring accurate Assembly and operation, and with the possibility of increasing the magnitude of the transmitted torque by increasing the axial length of the gear.

1. A magnetic gear containing a coaxially mounted on the same shaft as the rotor of the rapid rotation of the permanent magnet and pole pieces, on the other shaft through a non-magnetic disk rotor slow rotation in the form of at least one hollow cylinder, the stator including a magnetic core with teeth on its inner surface and at least one hollow cylinder, mechanically connected by its end to the housing through a non-magnetic ring, the permanent magnets of the rotor fast rotating magnetized tangentially and counter and are located between the wedge-shaped pole pieces, a hollow cylindrical stator and rotor slow rotation have alternating ferromagnetic and nonmagnetic elements directed along the axis of rotation, characterized in that it is provided with a bearing shield mounted on the shaft of the rotor fast speed and hermetically sealed and mechanically connected with the other end of the hollow cylinder of the stator located between the rotor rapid rotation and a hollow cylinder rotor slow rotation.

2. The gearbox according to claim 1, characterized in that between the non-magnetic ring and the end face of each of the hollow cylinder of the rotor honey is i.i.d. rotation is correct bearing unit.

3. The gearbox according to claim 1, wherein the stator includes at least two hollow cylinder, and between the free end of one of these cylinders is not associated with the bearing shield, and non-magnetic disk mounted bearing unit.



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention refers to cascade electric actuators of rotational movement, which consist at least of two asynchronous motors of the same type, and can be used at creation of electric actuators with controlled rotation speed from nominal to double nominal at constant moment, or actuators with double moment at constant nominal rotation speed, as well as at creation of other types of electric actuators. Controlled cascade electric actuator includes two electric motors coaxially installed in housing, each of which consists of rotor and stator; besides, stator of the first electric motor is fixed on housing, and its rotor is fixed on its shaft; fastening rings two of which are fixed on the housing, and the other one is fixed on shaft of the first electric motor, electromagnetic clutches fixed on the housing of electric actuator, three-phase power supply system; rotor of the second electric motor is movable and installed so that it can be freely rotated relative to its shaft, and stator of the second electric motor is fixed on its shaft. Fastening ring rigidly fixed on housing of controlled cascade electric actuator on which there installed are three fixed friction semi-clutches one of which has the possibility of being pulled in order to fix the friction gasket (installed on the first shaft) of its movable semi-clutch sliding along splined recesses of electric motor shaft with freely rotating rotor; the other semi-clutch has the possibility of being pulled in order to fix to the same friction gasket of its semi-clutch entering the cavity of housing of movable rotor, which is coaxial to the above semi-clutch, and the third semi-clutch has the possibility of being pulled in order to fix to the other friction gasket fixed on the electric actuator housing of its semi-clutch entering the cavity of movable rotor housing, which is coaxial to the above semi-clutch.

EFFECT: improved design of cascade electric actuator due to operation improvement of system of electromagnetic clutches and power supply system of one of asynchronous motors, which provides obtaining of high rotation speeds close to double nominal, at nominal value of moment or obtaining of double moment at nominal rotation speed.

3 cl, 1 dwg

Energy accumulator // 2456734

FIELD: electricity.

SUBSTANCE: accumulator contains a vacuumised housing, a fly-wheel in the form of a vertical cylindrical tubular rotor with a motor generator set with a stator and a drive disc. The support system is composed of a needle support bearing with a bearing socket in the lower part and a magnetic bearing with a permanent magnet in the upper part of the rotor. The supports rotary elements are attached to the partitions installed inside the rotor tube at a certain distance from its butt ends. The horizontal plane passing through the boundary of interaction between the support rotary and non-rotary elements cross the rotation axis in the unit of the rotor axle bend shape at the operating rotation rate. The accumulator housing is installed into an accumulator assembly.

EFFECT: reduction of aerodynamic losses in the vacuumised housing and losses in the rotor support units.

2 cl, 6 dwg

FIELD: electric engineering.

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FIELD: electricity.

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EFFECT: functionality enhancement.

4 cl, 2 dwg

FIELD: electricity.

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5 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: invention relates to cascade electric rotary actuator drives and may be used for production of gearless drives with frequency adjusted from 0 to double nominal at stable nominal rotation speed including reversible and other type drives. The proposed controllable cascade electric drive contains two electric motors mounted coaxially on the housing. Each motor is composed of a rotor rigidly mounted on its shaft and a stator. The stator of one of the electric motors is designed as stationary and is mounted on the housing while the second motor stator is capable of free motion relative of the shaft. According to the invention concept, it additionally contains a fixture ring rigidly mounted on the shaft of the stationary stator motor. Mounted on the fixture ring are two e-magnetic clutches one of them capable of contact with the friction plate that has a projection fitting into the movable stator body concavity which is coaxial to the said projection. The other e-magnetic clutch is capable of contact with its friction plate and of connection, with the help of the said plate, to the movable stator electric motor shaft that has a splined recess for the friction plate to fit in. The working areas of the above two friction plates that come in contact with the above e-magnetic clutches are equal to provide for identical performance of the said e-magnetic clutches. Mounted on the drive housing is a third e-magnetic clutch capable of contact with a third friction plate that has a projection fitting into the movable stator body having a concavity which is coaxial to the said projection of the third friction plate.

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2 cl, 6 dwg

Magnetic reducer // 2369955

FIELD: electric engineering.

SUBSTANCE: invention is related to electric engineering, to electromagnet mechanisms, and more specifically, to contactless magnetic reducers, and may be used as transmission device in mechanical systems with high resource of operation under impact loads. Magnetic reducer has rotor of fast rotation with permanent magnets (1), magnetised tangentially, wedge-like pole tips (2) with convex profiled surfaces inverted to working gap, non-magnetic bush (3) for fitting onto shaft of fast rotation (4). Magnetic core (5) with evenly installed teeth inverted to working gap, is fixed to body (6), with which hollow cylinders (7) are mechanically connected by non-magnet ring (10), which have alternating ferromagnetic and non-magnet elements. Rotor of slow rotation represents hollow cylinders (8) mechanically connected to shaft of slow rotation (9) by means of non-magnet disk (11) and has alternating ferromagnetic and non-magnet elements. Due to introduction of hollow cylinders of stator and rotor of slow rotation, magnetic reducer is produced with high transmission torque from alternating ferromagnetic and non-magnetic elements.

EFFECT: improvement of mass and dimensional parameters.

3 dwg

FIELD: electricity.

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2 cl, 1 dwg

FIELD: electricity.

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1 dwg

FIELD: electricity.

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3 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: in a magnetoelectric generator, the rotor of which comprises a disc (1) fixed on a shaft, and on the disc there is a ring-shaped row of permanent magnets (2) with alternating polarity, arranged as equidistant relative to each other, and the stator comprises two parallel plates (3,4), between which there are windings, besides, stator windings are arranged on U-shaped cores from electrotechnical steel, which are fixed on plates (3, 4) of the stator, width Bc of the end of the U-shaped core (6) makes a half of the width B of the permanent magnet (2) of the rotor, besides, ends of the U-shaped cores (6) of one plate (3) face the ends of the U-shaped cores (6) of the other plate (4) and are displaced relative to them by the distance equal to the half of the width of the permanent magnet (2) of the rotor, besides, the permanent magnets (2) of the rotor are arranged between opposite ends of U-shaped cores (6) of the stator.

EFFECT: reduced magnet resistance in a magnetic circuit, increased intensity of magnetic field, electromotive force induced in stator windings, and a coefficient of generator efficiency.

4 dwg

FIELD: electricity.

SUBSTANCE: invention relates to the field of electrical engineering and transport machine building and may be used in development of mechanisms, in which it is necessary to change torque and rotations of an output shaft of an electric motor. According to this invention, in an electric motor a differential gear is used as a converter of transmission ratio, and the gear comprises one input and two outputs, the input of which is connected to a rotor of the electric motor, one of outputs, to which a high torque is sent, is connected with an output shaft, and the second output is connected with the second rotor, which is inductively connected with the rotor of the electric motor, and in case of their mutual rotation, it generates electric energy, and force arising at the same time, by changing which, through variation of inductive connection between rotors, the speed up rate may be controlled, as well as output shaft rotation speed, partially blocking the gear, aims to reduce mutual relative opposite rotation of the electric motor rotor and the second rotor. The second rotor is also connected with a speed-up coupling, which is connected with the body by a response part, and preventing rotation of the second rotor to the side opposite to direction of the electric motor rotor rotation.

EFFECT: multiple increase of electric motor torque in case of speeding.

1 dwg

Electromagnet motor // 2470442

FIELD: electricity.

SUBSTANCE: invention is referred to electric engineering and power engineering, in particular, to electromagnetic motors. The electromagnetic motor comprises a rotor arranged in the form of a shaft installed as capable of rotation of at least two discs installed on the shaft, with permanent magnets arranged along their periphery, a stator comprising electromagnets installed as capable of interaction with permanent magnets, besides, the permanent magnets are arranged in the form of cylinders, planes of ends of which are located in the radial plane of each disc, besides, permanent magnets of the first and second discs face each other with poles, and the stator comprises electromagnets in the form of solenoids without magnetic conductors installed between discs of the rotor, two start-up electromagnets, comprising non-linked magnetic conductors and installed oppositely to a permanent magnet, of any of rotor discs, a contactless induction switch installed on the stator opposite to any of permanent magnets of rotor discs with the possibility of interaction with each of permanent magnets arranged on one of rotary discs of the rotor, at the moment of permanent magnet passing through a zone of sensitivity of a sensor part of the contactless induction switch.

EFFECT: increased capacity of a motor.

8 dwg

FIELD: electricity.

SUBSTANCE: invention refers to cascade electric actuators of rotational movement, which consist at least of two asynchronous motors of the same type, and can be used at creation of electric actuators with controlled rotation speed from nominal to double nominal at constant moment, or actuators with double moment at constant nominal rotation speed, as well as at creation of other types of electric actuators. Controlled cascade electric actuator includes two electric motors coaxially installed in housing, each of which consists of rotor and stator; besides, stator of the first electric motor is fixed on housing, and its rotor is fixed on its shaft; fastening rings two of which are fixed on the housing, and the other one is fixed on shaft of the first electric motor, electromagnetic clutches fixed on the housing of electric actuator, three-phase power supply system; rotor of the second electric motor is movable and installed so that it can be freely rotated relative to its shaft, and stator of the second electric motor is fixed on its shaft. Fastening ring rigidly fixed on housing of controlled cascade electric actuator on which there installed are three fixed friction semi-clutches one of which has the possibility of being pulled in order to fix the friction gasket (installed on the first shaft) of its movable semi-clutch sliding along splined recesses of electric motor shaft with freely rotating rotor; the other semi-clutch has the possibility of being pulled in order to fix to the same friction gasket of its semi-clutch entering the cavity of housing of movable rotor, which is coaxial to the above semi-clutch, and the third semi-clutch has the possibility of being pulled in order to fix to the other friction gasket fixed on the electric actuator housing of its semi-clutch entering the cavity of movable rotor housing, which is coaxial to the above semi-clutch.

EFFECT: improved design of cascade electric actuator due to operation improvement of system of electromagnetic clutches and power supply system of one of asynchronous motors, which provides obtaining of high rotation speeds close to double nominal, at nominal value of moment or obtaining of double moment at nominal rotation speed.

3 cl, 1 dwg

Power plant // 2458803

FIELD: transport.

SUBSTANCE: set of invention relates to automotive drive power plants. In compliance with first and second versions, power plant comprises thermal engine, first and second controllers, first and second rotary machines. First rotary machine comprises rotor with several magnetic poles, stator with several armatures, second rotor with several elements from soft magnetic material. The relation between quantity of armature magnetic poles, that of soft magnetic material poles and elements makes 1:m:(1+m)/2, where m ≠ 1.0. In compliance with first version, second rotary machine comprises rotor with several magnetic poles, stator with several armatures, second rotor with several elements from soft magnetic material. The relation between quantity of armature magnetic poles, that of soft magnetic material poles and elements makes 1:n:(1+n)/2, where n ≠ 1.0. In compliance with second version, power plant comprises differential. The latter serves to combine and distribute propulsive power.

EFFECT: higher efficiency.

20 cl, 89 dwg

Power plant // 2457958

FIELD: transport.

SUBSTANCE: invention relates to automotive power plants. Proposed power plant comprises thermal engine and rotary machine. Rotary machine comprises stator, first and second rotors. One of the latter is coupled with thermal engine. Another rotor is coupled with. Stator incorporates several armatures to generate rotary magnetic field. First rotor comprises some magnetic poles. The latter are made up of multiple magnetic poles arranged with clearance in direction along the circle. Every two adjacent poles feature unlike polarities. Second rotor comprises some elements from magnetically soft material. The latter are arranged between armatures and magnetic poles. Relationship between number of armature poles, magnetic poles and elements from magnetically soft material satisfy the following condition: 1:m:(1+m)/2, where m ≠ 1,0.

EFFECT: higher efficiency.

17 cl, 31 dwg

Electric motor // 2454774

FIELD: electricity.

SUBSTANCE: electric motor (1) consists of the first structure (4) that includes some magnetic poles formed by a certain sum of magnetic poles (4a) organised in certain direction and arranged in such a way that every two neighbouring magnetic poles (4a) have polarity that differ from one another, the second structure (3) that includes some armatures located opposite to the said magnetic poles for generating movable magnetic fields moving in certain direction between the row of armature and row of magnetic poles under the influence of certain sum of armature magnetic poles generated in the armatures (3c - 3e) at electric power supply to them, and the third structure (5) that includes a row of elements from magnetic-soft material formed by certain sum of elements (5a) from magnetic-soft material organised in certain direction with a one gap in relation to the other and arranged in such a way that a row of elements from magnetic-soft material is located between a row of magnetic poles and a row of armatures, number of magnetic poles (4a) and number of elements (5a) from magnetic-soft material is determined by the ratio 1 : m : (1 + m)/2 (m ≠ 1.0).

EFFECT: decrease of dimensions and manufacturing cost of the said electric motor with simultaneous provision of possibility to increase freedom degree at its designing.

6 cl, 19 dwg

FIELD: electricity.

SUBSTANCE: method is realised by variation of terminal electric machine stator and rotors design variation, and also by using non-magnet and dielectric materials in bearing structures of the machine, which make it possible to reduce losses from occurrence of vortex currents. Application of up-to-date non-magnet and dielectric materials with sufficient heat resistance and strength exceeding strength of metals, and also with lower volume weight in manufacturing of electric machines will make it possible to wider use terminal electric machines of the proposed design in aircraft building.

EFFECT: improved manufacturability of terminal machines production, higher stiffness of their main parts and increased power indices of a terminal electric machine.

3 dwg

FIELD: electricity.

SUBSTANCE: electromechanic variator is made as electrically interconnected generator and electric motor. It is equipped with induction coils and excitation windings installed in alignment, one armature common for electric motor and generator with winding connected to its current collector. Magnetic flows of both induction coils cross armature winding and induce opposed electromotive forces in it. Variator driving shaft is connected to common armature. One of induction coils is stationary while the second one is rotary and connected to driven shaft of variator. Excitation winding of rotary induction coil has independent current collector. Depending on required direction of driven shaft rotation in regard to driving shaft this unit ensures possibility to connect excitation winding of rotary induction coil to independent direct current source or current collector of armature winding. At that excitation winding of stationary induction coil is connected to current collector of armature winding or to independent source of direct current respectively.

EFFECT: functionality enhancement.

4 cl, 2 dwg

Pulse motor // 2443048

FIELD: electrical engineering.

SUBSTANCE: pulse motor in general (without frame) includes three discs on one rotation axis, with two outer discs (stator) are retractable and are placed on the guideways in extreme positions, and the middle disc is the rotating rotor. Identical halves of stator, moved on the axis relative to electric magnets of each other by 90° have different poles of working surfaces located on them on the ring of electric magnets and permanent magnets (left half of the stator - N pole, right half of the stator - S pole), retractable along the guideways, with third disc - rotor - rotating between them with one electric magnet and two permanent magnets placed on it with the shift of 120° with left plane of the working surfaces of all three magnets of the rotor having N pole and the right plane having S pole. Operating principle of pulse motor is based on repulsion of similar poles of the rotor from magnets of each of the halves of stator, with permanent magnet of the stator interacting with permanent magnets of rotor give additional acceleration to rotor rotation, with stator electric magnets are powered in pulse mode, and rotor electric magnet is powered in continuous mode.

EFFECT: increased operational economy of pulse motor giving the possibility to increase the operation time of feeding batteries to the next recharge and possibility of motor usage in both AC and DC circuits.

11 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: electric drive with a three-step planetary gear comprises an electric motor (1), a gear with a high-speed (6), interim (7) and low-speed (8) planetary rows. Each planetary gear comprises accordingly a sun gear (9, 10, 11), satellites (12, 13, 14), a carrier (15, 16, 17) and a crown (18, 19). The high-speed carrier (15) is arranged as a whole with an interim sun gear (10). The low-speed (output) shaft (20) is arranged as a whole with a low-speed carrier and is installed with a support on two radial ball bearings (21, 22). The interim carrier (16) is arranged with an inner geared rim and in a cantilever manner with the help of an axis is installed on two bearings (26, 27) installed in the body of the low-speed carrier (17). Stop rings (28, 29) serve to retain the interim carrier against axial displacement. Engagement of teeth of a low-speed sun gear (11) and inner teeth of a geared rim of an interim carrier (16) is arranged with radial and side gaps, not less than the product of the engagement module (m) by 0.4.

EFFECT: invention makes it possible to increase efficiency, to improve weight and dimension parameters of an electric drive.

2 cl, 2 dwg

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