Variable rom and torque two-rotor motor

FIELD: engines and pumps.

SUBSTANCE: differential gearing with one input and two outputs are used as a gear ratio converter in proposed motor. Gearing input is engaged with motor rotor. One of said outputs is engaged with driven shaft to receive higher torque while second output is engaged with second rotor inductively coupled with motor rotor. Driven shaft rpm is varied by changing the second rotor circuit electric load.

EFFECT: optimum acceleration of the motor, higher efficiency, simplified control.

1 dwg

 

The invention relates to the field of transport engineering and other mechanisms that require a change in speed of the driven shaft with the torque change of the motor.

There are various ways to change the speed of the shaft of the AC motor. The main method of a smooth change of speed is the management of power line frequency AC using inverters. This method is described in the literature. For example: Waldek A.I. of the Electric machine. Leningrad. Energy, 1978, str-572. Motor with two rotors with the ability to control the speed of the output shaft is also described in patent No. 2345468, patent application No. 2010120484.

The disadvantage of the frequency control current is large, the cost of the converters, their complexity, low efficiency, the unreliability and the fact that converters for electric motors with high power has not yet established a reliable element base. The disadvantage of the method described in patent No. 2345468 is no possibility of the repeated increase in torque on the output shaft during acceleration, lack of mechanism described in application No. 2010120484 is its complexity due to the presence of the overrunning clutch.

The objective of the invention is to enable a smooth change of speed of the driven shaft of the device from what emeniem gear ratio and torque in a wide range of speeds depending on the load at the optimum mode of rotation of the rotor of the electric motor at constant optimum speed and as a result, achieving optimality of the accelerating performance, increasing efficiency, reduce production, and simplified management.

This goal is achieved by the fact that according to the invention in the motor as a transducer ratio use differential transmission of any known type, having one input and two outputs, the input of which is connected to the rotor of the electric motor, one of the outputs, which is transmitted more torque, connected to the driven shaft, and a second output connected to the second rotor, which is inductively associated with the rotor of the electric motor and at their mutual rotation generates electricity, and the power arising from this change which is changing the inductive coupling between the rotors, you can control the acceleration and speed of rotation of the driven shaft, partially blocking the transmission tends to reduce the mutual relative opposite rotation of the rotor of the electric motor and the second rotor. When the rotor of the electric motor connected to one of the Central wheel, the rotation is transmitted through the pairs of satellites, freely rotating on the drive rod, rigidly interconnected, the second Central wheel, which is connected with the driven shaft, and a pinion carrier connected to the second rotor inductively associated with the rotor e is extradigital, which in its rotation moves the second rotor electromotive force and in the presence of a controlled load in his chain with adjustable force partially blocks the transmission along the second rotor, causing the entire differential mechanism to rotate around its axis, in order to reduce the mutual relative rotation between the rotors. This leads to an increase of speed of the driven shaft and to control the rate of change of its momentum, which can change when the ratio of torque, depending on the magnitude of the electric load in the circuit of the second rotor and the torque on the driven shaft, allowing constant optimum speed rotor of the motor to change depending on the load torque and the speed of the driven shaft. During acceleration the load on driven shaft drove, United with the second rotor tends to rotate in the opposite direction. This prevents the power, taking the second rotor connected with the rotor of the motor is inductive, as it occurs in the electromagnetic coupling. When you change the load on the driven shaft, the second rotor will seek to reverse rotation in accordance with its size and power between the rotors carries a second rotor with the rotor of the motor, preventing it, and is determined by the electrical load in the circuit is which of the rotor. The speed of the driven shaft and the torque also changes in accordance with the balance between the strength of binding both the rotor and the magnitude of the load on the driven shaft and the rotor of the electric motor remains optimal and constant.

The invention is illustrated in the drawing. The rotor of the electric motor 1 rotates freely on the shaft, and the winding 2 is connected inductively to the stator winding 3 and inductively connected with the winding of the second rotor 4 mounted on a drive rod 5 differential transmission, ia installed a pair of satellites 6 and 7, obkatyvalisj two Central wheels of different diameters 8 and 9. Central wheel 8 is connected with the driven shaft 10, and the Central wheel 9 rotates freely on the shaft, but connected with the rotor of the motor 1. When the rotor of the electric motor 1, which transmits the rotation of the Central wheel 9, satellites rotate the Central wheel 8, and the reaction force tends to rotate the carrier 5 in the direction opposite to the rotation of the rotor 1. The current which is produced in the second rotor 4 by the mutual rotation of the rotor 1 and the carrier 5 on which you installed the second rotor carries the second rotor and drove differential for the rotor of the electric motor 1 with a force that is proportional to the electrical load in the circuit of the second rotor. This leads to a slow rolling satellites in the Central wheels to decrease the s ratio and the acceleration of the driven shaft 10. With the increase of the electric load in the circuit of the second rotor increases the magnitude of the force, taking him by the rotor of the electric motor, the acceleration rate of the output shaft increases. When reducing the electrical load in the circuit of the second rotor increases the slippage between the rotors, gear ratio increases, the speed of the driven shaft decreases. At a constant electrical load in the circuit of the second rotor, the change in load on the driven shaft changes the speed and torque of the driven shaft.

Double-rotor motor with variable speed and torque, where as the Converter gear ratio use differential transmission having one input and two outputs, transmitting different torque, characterized in that the input differential transmission is connected to the rotor of the electric motor, one of the outputs, which is transmitted more torque, is connected with the driven shaft and the second output is connected with the second rotor inductively associated with the rotor of the electric motor, with a torque and speed of rotation of the driven shaft of the electric motor is controlled by changing the electrical load in the circuit of the second rotor.



 

Same patents:

Gearmotor // 2510561

FIELD: electricity.

SUBSTANCE: in the gearmotor, the mounting assembly (26d) of the brush holders of the housing of the reducing gear (26) there are series-arranged two flat surfaces (19b) ad two arched surfaces (26b) such that they form an ellipse. One of the two flat surfaces is formed with first heat-removing elements (26i), and two brushes (20) and (20) of the motor are mounted near the first heat-removing elements (26i) on a block (19) of brush (20) holders, built into the mounting assembly (19) of the brushes, situated in the mounting assembly (26d) of brush (20) holders. According to the present invention, the first heat-removing element is formed on the external peripheral surface of the housing of the reducing gear, situated on the back surface of the mounting part, and said two brushes are situated further from the control board and near the first heat-removing element, such that heat released by the brushes is transferred to the first heat-removing element.

EFFECT: efficient dissipation of heat generated by brushes, thereby reducing the amount of heat transferred from the brushes to the control board in a gearmotor, which solves the problem operating such a motor for a long period of time.

15 cl, 13 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering, in particular, to power converters made as gear motors and electric drives; it can be used in special-purpose power converters in the form of power generation stations and machines in machine-building industry, transport industry, oil and gas industry, power industry, etc for the purpose of conversion of mechanical power to electrical one by means of power conversion of the primary actuator with use of power of hydroflow and wind, sun and other kinds of mechanical power (combustion engines, etc.) to electric and heat power and pressure, etc. The suggested power converter contains the primary actuator (PA) which is an electric motor, planetary cyclo gear box (PCGB) fixed at PCGB shaft through bearings that transmits rotation to the output shaft of reduction gearbox. At that convex-profiled teeth of the gearbox central wheel engaged with concave-profiled teeth of the gear wheel being a satellite gear are made as barrel-type spiral rollers made of steel or springs of cylindrical, conical and spherical shape, and their barrel radius R is defined as per Hertz formula to minimise contact stress of engagement thus providing free from play, noiseless and optimal operation in terms of their durability.

EFFECT: this construction of power converter based on planetary cyclo gear box provides technical result consisting of improvement of energy characteristics, reliability and operational life of the converter with efficiency factor ≥ 95%.

2 cl, 4 dwg

Drive device // 2487453

FIELD: electrical engineering.

SUBSTANCE: drive device (1) purposed mainly for car windscreen wipers contains engine housing (2) fixed at the upper side (7) of the gear casing (3) and overlapping hole (15) in the gear casing (3). Air-permeable membrane (14) provides pressure balancing at temperature variations. The membrane (14) is located at upper side (7) located at angle to side area (16) of the gear casing. At least one area (30) of the membrane (14) is covered by the engine housing (2) preferable with formation of air gap (17). The drive device can be mounted on a car.

EFFECT: decrease of space for mounting.

12 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: planetary gear motor consists of motor with rotor (1), which is installed in rotation supports (2) and has inner cylindrical surface, and planetary gear transmission arranged inside the motor rotor. Carrier (5) of planetary gear transmission is rigidly attached to rotor (1) through coupling (14) located between central wheels (12, 15). At least some part of external surface of coupling (14) is cylindrical and installed without a gap relative to inner cylindrical surface of rotor (1). Rotation supports (2, 7) of rotor (1) serve as rotation supports of carrier (5).

EFFECT: invention allows simplifying the design owing to combining several functions of one and the same structural assemblies.

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

FIELD: electricity.

SUBSTANCE: multi-purpose system includes housing with cover, motor and magnetoconductive rotor. Magnetoconductive rotor is made in the form of high-strength spring. Spring coils form round screw projections which are in constant engagement with mating inbent round screw slots of magnetoconductive stator. Rotor is brought into rotation about its longitudinal axis due to action on it of rotating electromagnetic field of stator. Rotor is constantly engaged with gear of drive unit, which has round screw profile of cycloidal type. Engagement has the possibility of adding and distributing power parameters on the main electric drive. Electromagnetic interaction of stator and rotor is performed along closed magnetic circuit without any air gap.

EFFECT: increasing efficiency coefficient and improving reliability of electric drive.

4 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: invention suggests electric motor (10) and gearbox drive (12) for vehicle servos which consist of armature shaft (32) installed in pole body (18) containing shell ring (20) and bearing cover (26, 28) installed at least at one end surface (22, 24) for location of bearing (30) for armature shaft (32), at that in pole body (18) there is one radial cave (42) at least, which is purposed for insertion after complete assembly of pole body of at least one radial fixing rib (53) of gearbox docking device (15) to pole body (18) in order to fix electric motor (10) at gearbox docking device (15). Subject of invention includes also method for manufacturing of suggested gearbox drive unit.

EFFECT: simplification of fixture and prevention of electric motor rotation in gear casing.

19 cl, 6 dwg

Orbital gear motor // 2428782

FIELD: electricity.

SUBSTANCE: gear motor, and namely its internal and external stators are made in the form of cylindrical magnetic conductors with additionally equipped L-shaped magnetic conductors, which are installed in the zone of teeth inside external and outside internal cylindrical magnetic conductors. At that, two-speed operating mode can be implemented in gear motor as in prototype. The main advantage of the device is that it allows avoiding the main disadvantage of prototype and namely complexity of production of front stator. It is due to the fact that cylindrical magnetic conductors equipped with additional L-shaped magnetic conductors are used instead of front stators.

EFFECT: simplifying the design and increasing manufacturability of the structure of orbital gear motor.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to braking equipment and may be used at transport facilities. Proposed electromechanical brake comprises brae shoes, case accommodating cup with spring coupled with motor. Said cup houses one or several springs arranged to get unclamped when acted on by electromagnetically controlled latches. Cup allows controlling its translation and is coupled with motor via toothed-surface tie rod, gear wheel coupled with tie rod, electromagnetic coupling and self-braking screw gear. Note here that latch control electromagnets, electromagnetic coupling and motor are connected with control unit connected, in its turn, with brake pickup and that indicating force exerted by cup on shoes.

EFFECT: fast operation at controlled and regulated braking force.

1 dwg

FIELD: electricity.

SUBSTANCE: power minidrive comprises casing (1), inside of which there is an open-frame electric motor arranged coaxially along longitudinal axis, comprising stator (2) and rotor (3) fixed on shaft (4). There is a wave gear with solids of revolution, either single-stage, where only output stage (18) is used, or multi-stage, where output stage (18) is used, as well as intermediate stage (10). Position sensor consists of stator (28) and rotor (29) installed on output link (19) of wave gear. On end surface of output link (19) of single- or multi-stage wave gear with solids of revolution there is a bushing (25) fixed eccentrically to longitudinal axis with traction rod (35). Traction rod (35) has eyes at the ends, one of which is placed onto bushing (25) with the possibility of rotation around axis of bush, and the second one is intended for fixation to fixed part (32) of aircraft. Body (1) is equipped with element (34) of fixation to movable aerofoil (31) so that longitudinal axis is aligned parallel to axis of rotation (33) of movable aerofoil (31) of aircraft.

EFFECT: provision of control of movable aerofoil, axis of rotation of which is arranged outside volume of movable aerofoil and increased reliability of control by redundancy of power minidrives according to principle of forces summation.

2 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, and namely to low-speed electric generators, and it can be used in wind-driven power plants. In magnetoelectric generator the rotor is provided with constant magnets 3, 4, and stator contains two parallel plates 5 and 6, between which annular windings 7 are arranged. The rotor is made of two parallel discs 1 and 2 fixed on shaft, on each of which ring-shaped rows of constant magnets 3, 4 are arranged. Polarity of constant magnets 3, 4 of each row alternates. Herewith poles of constant magnets 3, 4 of one row are faced to opposite poles of constant magnets 3, 4 of the other row. Annular windings 7 of the stator are made as equilateral trapezia with lateral sides 8, 9 located radially in relation to the rotor rotation axis 10 and areas 11, 12 of annular windings at trapezia bases are arc-curved; annular windings 7 are inserted by pairs one into another. Distance ℓ between areas of annular windings at the base of trapezia exceeds width b of ring-shaped row of constant magnets 3, 4. Constant magnets 3, 4 in each ring-shaped row join each other.

EFFECT: increasing power of magnetoelectric generator with preservation of its dimensions.

7 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: magnetoelectric motor comprises a rotor, made of two parallel discs fixed on the shaft, on every of which there is a ring-shaped row of permanent magnets with alternating polarity. Poles of the permanent magnets arranged at one of rotor discs face the opposite poles of the magnets placed on the other disc of the rotor, the stator is placed between discs of the rotor with a gap relative to the shaft and is equipped with circular windings in the form of isosceles trapezoids, sides of which are arranged radially relative to the axis of rotor rotation. According to the invention, the stator is made in the form of two plates parallel to each other, circular windings are placed between plates, sections of circular windings in the bases of trapezoids are bent according to the arc, circular windings of one plate of the stator are inserted into circular windings of the other plate of the stator with formation of modules, besides, the distance l between sections of circular windings in bases of trapezoids exceeds the width b of the ring-shaped row of permanent magnets of the rotor.

EFFECT: increased evenness of torque on a shaft of a magnetoelectric motor and evenness of rotor rotation.

2 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: in an electromagnetic generator a rotor is equipped with permanent magnets, and a stator comprises two parallel plates (5, 6), between which there are circular windings (7), made in the form of isosceles trapezoids, sides (8, 9) of which are arranged radially relative to the axis of rotor rotation, and sections (11, 12) of circular windings (7) in trapezoid bases are bent along the arc. The rotor is made of two parallel discs (1, 2) fixed on a shaft (10), on every of which there are ring-shaped rows of permanent magnets (3, 4) arranged on opposite surfaces, and their polarity in every row alternates. Poles of permanent magnets (3, 4) in a single row face opposite poles of permanent magnets (3, 4) of another row. Circular windings (7) are inserted into each other to form modules, at the same time the distance 6 between sections of circular windings (7) in trapezoid bases exceeds width b of the ring-shaped row of permanent magnets (3, 4). At the same time according to this invention between circular windings (7) there is an additional flat circular winding (13) in the form of an isosceles trapezoid, sides (14) of which are arranged in one plane between sides (8, 9) of other circular windings (7).

EFFECT: provision of the possibility to generate three-phase electric current.

FIELD: electricity.

SUBSTANCE: disclosed rotary MHD machine has disc rotors and collectors for inlet and outlet of the working medium, mounted in parallel in a housing. According to the invention, working elements which convert energy of the working medium to mechanical energy and then to electrical energy are disc rotors made from electroconductive porous material which is pervious on at least one end surface and are mounted with possibility of counter-rotation while providing electrical contact with each other on electroconductive areas of the rotor shafts which alternate with insulated areas of shafts in checkered order relative each other. Each pair of rotor discs lying in the same plane is placed between poles of permanent magnets placed in a perpendicular plane to axes of the rotors and is connected in series to only one pair of voltage contacts on shafts so as to allow series-flow of current through each disc of both rotors.

EFFECT: design of a multifunctional magnetohydrodynamic (MHD) machine, high emf generated by the MHD machine.

3 dwg

FIELD: electrical engineering.

SUBSTANCE: electromagnetic motor contains cylindrical induction coil consisting of magnetic core and excitation winding located in its circular groove; forward and reverse stroke armatures opposite to each other in coaxial relationship; return spring installed in the axial channel formed by end blind grooves in forward and reverse stroke armatures. Forward and reverse stroke armatures are made as disc and cylindrical parts interconnected rigidly. Cylindrical parts have diameters of different values. In cylindrical part of the forward stroke armature there is an internal blind groove which diameter is bigger than the diameter of cylindrical part of the reverse stroke armature, and it is capable to move along inner grove of the forward stroke armature. Disc parts of the armatures are oriented towards different poles of cylindrical induction coil. In the reverse stroke armature there is an axial bore with axial rod of the forward stroke armature located in it.

EFFECT: reduction of vibration level for electric motor housing, increase in performance and economical operation.

1 dwg

FIELD: electricity.

SUBSTANCE: in design of the proposed unipolar machine (UM) there are no conventional sliding brush contacts, and several disks can be easily connected in series to its electric anchor chain by means of electrically conducting belts and hollow cylinders with common magnetic system. At that, rotation shafts in the proposed UM always rotate to opposite sides, which can be provided either with individual external motors, or by any common reversing mechanism. Proposed direct current UM with two shafts can operate both in generator mode, and in motor mode.

EFFECT: sufficient increase of wear resistance, improvement of electromechanical characteristics and noticeable increase of operating voltage; enlarging application field of unipolar direct current machines.

2 dwg

FIELD: electrical engineering.

SUBSTANCE: magnetoelectric machine rotor system consists of two coaxial rotors. The external (outer) rotor is designed in the shape of a hollow cylinder of high-strength, non-magnetic and electrically non-conductive material with constant magnets uniformly fixed thereon; the magnets are magnetised in a radial direction and have alternating polarity. There are gaps between the external rotor magnets wherein the retaining elements are positioned made of a non-magnetic and electrically non-conductive material. The internal rotor is designed in the shape of a shaft of a magnetically soft material, toothed on the outside, the internal rotor teeth number equal to that of the external rotor permanent magnets. The internal rotor radial bearings are positioned outside the external rotor bearings. The external rotor axial bearing is represented by axial magnetic forces of interaction between the permanent magnets of the external rotor, the stator core and the shaft.

EFFECT: provision for the rotor system rotors strength margin and increasing the proper frequency to a value in excess of rotation rate.

16 cl, 3 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

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

FIELD: machine building.

SUBSTANCE: differential casing includes a protective housing of a differential, which is provided on its outer surface with an annular flange that is continued around the rotation axis of the protective housing. One of the two areas of the protective housing has an opening interconnected with a placing space formed in the protective housing. The protective housing area provided with the opening is equipped with an attachment section used for attachment of the differential casing. The attachment section includes two flat surfaces that are parallel to the flat surface containing the rotation axis of the protective housing and are located around the rotation axis so that space is left between them. The attachment section is provided integrally by means of an external end section of the side of the end section forming an opening, which faces the flange. The attachment section is provided with a top end surface that comprises a total surface with the end section.

EFFECT: simpler manufacture of a differential casing.

3 cl, 7 dwg

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