Structural association with clutches, brakes, gears, pulleys, mechanical starters (H02K7/10)

Self-braking asynchronous electric motor with dual squirrel-cage rotor // 2602242
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering, namely to electric motors with automatic retainer. Self-braking asynchronous electric motor comprises a stator and a cylindrical double rotor coupled with shaft by means of spline connections, to allow axial displacement in the air gap. Between the parts of the double rotor a brake spring is mounted. End shields, on internal surfaces of which the conical brake shoes with rigidly fixed brake pads are placed. Bags of magnetic conductors of cylindrical double rotor are laminated, and made of electric steel plates. On external cylindrical surfaces of the parts of the double rotor slots are made with rods of windings with their ends at the ends of magnetic conductors are connected by the short-circuited rings, at that the rods of windings placed in the slots of magnetic conductors, are located mirror-like relative to its centre in axial direction, parallel to shaft rotation axis.EFFECT: technical result is in simplification of technology of making self-braking electric motors and expanding the scope of their application.1 cl, 2 dwg

Electromagnetic brake, brake and method for making brake // 2601488
FIELD: machine building.SUBSTANCE: group of inventions relates to machine building, particularly to winch brakes. Electromagnetic brake comprises a frame part, an armature part having a magnetic core, a spring element and an electromagnet. Electromagnetic brake comprises a flat elastic bending damping plate fitted with resistance to bending with creation of damping force. Brake comprises a frame part, an armature part, an air gap and flat elastic bending damping plate. Method of making brake is executed with frame and armature parts. On frame and armature parts, mating surfaces are arranged opposite each other. Method then includes making a flat, elastic bending damping plate and installing in air gap between mating surfaces located in brake.EFFECT: reduced noise level during operation of brakes.15 cl, 7 dwg

Electric drive // 2596002
FIELD: machine building.SUBSTANCE: invention can be used in designs of drives transmitting torque from motor to actuator. Electric drive comprises drive motor, consisting of stator and rotor with magnets on its outer surface, as well as magnetic coupling and tight screen dividing coupling into half-couplings with permanent magnets mounted thereon. Motor rotor is made hollow from nonmagnetic material, and in its cavity through sealed screen there is a half-coupling of magnetic coupling. Permanent magnets on outer surface of rotor are made in form of separate segments and can form a mosaic structure. On surface segment magnets facing electric motor stator, can be installed a bandage made from high-strength non-magnetic material, for example stainless steel.EFFECT: simplified design.3 cl, 2 dwg

ethod of producing magnetic conductor of rotor of self-stopping asynchronous motor // 2585016
FIELD: machine building.SUBSTANCE: invention relates to production of electric machines and can be used in electrical engineering when making rotors of self-braking asynchronous electric motors. At manufacture of magnetic conductor of rotor induction motor self-breaking ferromagnetic powder is mixed with liquid binding agent, produced mixture is placed in mold and compacted in axial direction. Inside mold is filled with layer of homogeneous mass, having reduced magnetic permeability and consisting of liquid binding substance with ferromagnetic powder. After atop it symmetrically relative to longitudinal axis of electric steel insert is made in form of hollow thin-wall truncated cone base diameter equal to inner diameter of mold, with further inside cone of same homogeneous mass. In cavity between mold and insert, and above upper edge insert is filled with homogeneous mass of liquid binding substance with ferromagnetic powder with high magnetic permeability.EFFECT: possibility of changing and obtaining required degree of axial anisotropy.1 cl, 1 dwg

ethods and systems for improved engine speed control during engine starting // 2581247
FIELD: engines.SUBSTANCE: invention relates to control of engine restarting. A system for controlling start speed of a vehicle engine includes first battery electrically connected to engine starter when starting, and AC generator mechanically coupled to engine and having an inductor coil excitation circuit which is electrically damped by first battery when starting engine. Inductor coil excitation circuit when engine starts is electrically connected to a power source other than first battery. System also includes controller for varying strength of magnetic field generated by inductor coil by adjusting input of inductor coil excitation circuit.EFFECT: improved engine restart.10 cl, 8 dwg

Electric machine with air cooling // 2570066
FIELD: electricity.SUBSTANCE: invention is referred to electrical machine with air cooling, in particular to AC generator of a transportation vehicle as well as to starter generator of a transportation vehicle. The electrical machine with air cooling comprises the rotor, which includes the rotor shaft and excitation winding as an automatic clutch controlled electromagnetically. The electrical machine comprises also fan impeller mounted at the rotor shaft so that it may be rotated and connected of disconnected from the rotor by the automatic clutch. Between the fan impeller and rotor there is a driving element and spring-loaded element creating initial tension required for keeping the fan impeller and rotor at distance from each other in unenergised state of the excitation winding. The fan impeller is mounted at the rotor shaft so that it may be moved axially along it. In energised state of the excitation winding the fan impeller is coupled by the driving element with rotor by force closure and/or form closure.EFFECT: increased efficiency factor for the electrical machine, simplified design of the electrical machine using automatic clutch.5 cl, 2 dwg
Self-braking asynchronous electric motor with dual massive rotor // 2551893
FIELD: engines and pumps.SUBSTANCE: self-braking asynchronous electric motor with dual massive rotor contains a stator with cylindrical boring with exciting winding, the a ferromagnetic massive rotor installed on a shaft with a possibility of axial movement, bearing boards with bearings, a rotor shaft, a brake spring, a brake mechanism. The rotor is designed doubled in such a manner that in the air gap formed between its parts symmetrically located in the axial direction with reference to the stator magnetic conductor the shaft-mounted brake spring is installed. Both parts of the rotor are fabricated by the method of powder metallurgy and have constant magnetic properties along the shaft axis. On internal surfaces of bearing boards conic brake shoes with rigidly fixed brake slips are provisioned. Dual ferromagnetic parts of the massive rotor are rigidly fixed with the bases which are conjugate to the shaft by means of spline connection.EFFECT: simplification of technology of manufacturing of a ferromagnetic massive rotor and improvement of operational reliability and efficiency of braking of the electrical machine.2 cl, 2 dwg

Brake drive // 2550786
FIELD: transport.SUBSTANCE: brake drive comprises case to house revolving screw coupled via reduction gear with motor (11). Nut with rigidly secured sliders is fitted on said screw. Stack of springs is fitted between the ends of nut ends and case ends. Two brake shoes are arranged in said case. One of brake shoes is fixed in said case while opposite shoe is fitted therein to slide to contact with said sliders. Case slides in guides with axes parallel with moving brake shoe direction. This motor is a self-controlled inverted-bed or a step motor. Case can incorporate plungers in amount required for creation of the force larger than maximum force of said spring stack. Plunger axes are parallel with nut axis. Motor shaft output extension can be provided with journal for wrench fit.EFFECT: braking without extra brake shoe systems at emergent manual braking.3 cl, 2 dwg

Device and method for current measurement in bearing // 2550155
FIELD: electricity.SUBSTANCE: invention relates to the sphere of electrical engineering and can be used in electric machines. Contactless current measurement is implemented in device and method for current measurement in bearing. Contactless voltage measurement is implemented by means of in-series circuit of capacitors. Thus voltage of bearing is peculiarly good for measurement in the range of high frequencies.EFFECT: improved estimation of bearing currents.16 cl, 8 dwg

echatronic device // 2543522
FIELD: electricity.SUBSTANCE: invention is related to the area of electric engineering and may be used in electric drives of different mechanisms and actuators of automatic systems. Mechatronic device comprises synchronous motor with concentrated windings at stator poles with number of poles multiple to number of alternating current phases, winding-free rotor. Stator and rotor are made composite and consisting of two cylindrical core stacks with scalloped surface and even pitch. Number of teeth at rotor is less than number of teeth at stator. Stator packs are turned towards each other, at that angle of their scalloped surfaces shear is equal to 180. Between core stacks of stator there is permanent magnet with axial magnetisation. Rotor is set in stator bore and may perform the following complicated movement: precession in regard to stator axis and rotary in regard to own axis of symmetry. In order to transmit rotary movement of rotor to output shaft there is a device transmitting offset rotary movement, for example a pivoting device or an elastic deformable link.EFFECT: reduced level of torque pulsation, increased reduction ratio and expanded functional capabilities.2 dwg

Disc inversion generator and wind power generating equipment including this generator // 2538101
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering, particularly to wind power generating equipment. The disc co-axial inversion generator 1 includes fixed ring shaft 2 with support in central part. Basic body of disc casing 11 contains one-piece structure of disc top casing 12 and disc bottom casing 13 installed with the possibility of rotation by the wind turbine on shaft 2. The disc first 21 magnet of magnetic linkage is secured in the internal surface of top casing 12, and disc second magnet 22 is secured on internal surface of bottom casing. The disc winding 31, which part 32 looks on field between the first and second magnets 21 and 22 of magnetic linkage, is installed in the top and bottom casings 12 and 13. The disc winding 31 has central part installed with possibility of rotation on the shaft 2. The inversion magnets 41 project from the outside surface of the fixed ring shaft 2. The disc lead magnet 51 is secured to the internal surface of the bottom casing and looks on the inversion magnets 41. The disc driven magnet 61 is secured on winding 31 and looks on the inversion magnet 41. Part 71 for generated power take-off is located on part 31 of internal circle of winding body and shaft 2.EFFECT: increasing of output electric power, mechanical losses reduction, noises decreasing and maintenance simplification.8 cl, 9 dwg

Actuator // 2416863
FIELD: electricity.SUBSTANCE: actuator includes reversible electric motor and transmission to bring the actuating element having the possibility of back-and-forth movement into action. Actuating element, motor and transmission has no self-locking. There is brake to retain the actuating element in any position when electric motor is not active. The above brake can also be released with circuit breaker mechanism. Motor is used as generator when the brake is released, and stress created with generator is used to control the speed of actuating element. There is quick-acting circuit breaker which allows disengaging the actuating element from motor and transmission for correction of position in such state; at that, movement of actuating element in disengaged state occurs at controlled speed.EFFECT: simplifying and control of speed during disengagement.14 cl, 9 dwg

Braking assembly // 2416046
FIELD: transport.SUBSTANCE: proposed braking assembly comprises electromagnet, brake spring and braking plates. One of the latter is rigidly fitted on the shaft while another one moves only axially. Braking and stop locking are performed by braking plates with their contact surfaces representing radially arranged teeth. Profile of teeth on one plate matches that of grooves on opposite plate.EFFECT: reduced weight and sizes, higher reliability and longer life.3 dwg

Electric motor with low rpm, in particular for actuation of lifting devices // 2410820
FIELD: electricity.SUBSTANCE: invention refers to the field of electric engineering, in particular, to electric machines, and relates to features of design of electric motors with low rpm. Electric motor (10) is proposed with low rpm, comprising rotor (17), with supply from source of three-phase AC voltage, magnets (21, 22) and stator coil (24). Rotor (17), stator (24) and magnets (21, 22) are located in body (13) of pulley, which rotates around fixed axis (11), besides, rotor (17) is fixed to body (13), coil of stator (24) is arranged with supply from DC voltage source. Magnets (21, 22), forming stator (24), are fixed to axis (11) and are arranged with the possibility to locate a stator (24) coil in them, and body (13) of pulley is fixed to two diamagnetic side plates (16, 16'). Motor comprises electromagnet brake (25), including two metal disks, one of which is arranged as a whole with one of specified diamagnetic plates (16'), and the other one with magnet (22), which forms poles of stator (24), and spring pushes of disks arranged in according slots of magnet (22). To resist action of lowering braking disk, there is a thrust bearing. Besides, the possibility to control frequency of rotor voltage is provided to produce required motor rpm.EFFECT: production of perfect working characteristics of motor with low rpm, having compact design, which does not require step-down gear.7 cl, 1 dwg

Electromagnetic device // 2387064
FIELD: electrical engineering.SUBSTANCE: proposed device comprises rotor accommodating permanent magnets fixed in dielectric material and running in rolling bearings between two disks of stator. The latter comprises horseshoe-shaped magnetic cores with poles and windings connected in series. Crankshaft with clutch disk and overrunning cutch disk with con-rod runs in bearing fitted in the base, said disks being fitted on opposite ends of crankshaft. Free end of said con-rod is pin-coupled with the lever linked up with rotor disk periphery. Aforesaid base supports motor with independent power supply. Flywheel is fitted on one extension of motor shaft and crankshaft clutch disk is fitted on opposite end of the shaft.EFFECT: higher efficiency of conversion.2 dwg

Planetary electric motor - reducing gear with controlled commutator // 2359388
FIELD: electricity.SUBSTANCE: present invention relates to electrical engineering and electromechanics, particularly to electric machines, and pertains to distinct features of design of a planetary electric motor - reducing gear with a lever for controlling the commutator. To increase excentricity of rotation of the commutator by several times compared to excentricity of the satellite - armature, the proposed planetary electric motor - reducing gear employs a lever for controlling the commutator. The proposed planetary electric motor - reducing gear has a planetary gear system in form of a friction pair or planetary reduction gear, the first step of which executes functions of the stator and satellite - armature of the electric motor. The commutator rotates synchronously with the satellite - armature. The stator and satellite - armature are fitted with solenoid coils, which shift the satellite - armature about the point of maximum entrance of teeth of the wheel and primary pinion of the planetary reduction gear into each other, or about the point of contact of the friction pair. The commutator, which can rotate excentrically about the housing, provides for phase shifting of the electromotive force of the electric motor and closes the solenoid coils of the stator and satellite - armature. The lever for controlling the commutator has different arms, the end of the shorter one of which engages the statellite - armature, and the end of the longer one enters the collector, providing for its rotation with excentricity, which exceeds excentricity of rotation of the satellite - armature. The commutator can be used with butt-end and cylindrical arrangement of contacts. The current input and output elements of the commutator do not rotate, they only oscillate.EFFECT: improved operation of a planetary electric motor - armature, reduced spark formation of the brushes and electric arc from commutator contacts, as well as provision for wide regulation of frequency of rotation, torque and reversing the electric motor.6 cl, 8 dwg

Straight-running actuating electric mechanism // 2337456
FIELD: electricity.SUBSTANCE: invention is related to electric engineering and may be used in electric machine industry, namely, in electromechanical power devices, in particular, in straight-running actuating electric mechanisms for movement of working elements of different machines and in the most different areas of machine building, metallurgy, etc. Straight-running actuating electric mechanism contains casing, on which electric motor is installed as well as screw with master and slave pulleys and drive belt, protective tube with front bushing, in which stem with power nut is installed with the possibility of longitudinal displacement. Induction limit switches are installed in the window of protective tube with the possibility of precise and independent tuning motion in parallel guides provided in the form of threaded pins and slots installed in the box. On external surface of stem opposite to every limit switch deepenings are provided that are displaced in relation to each other in angular and axial direction, and inclined flat - opposite to induction position sensor installed in front bushing.EFFECT: increase of technological resources of straight-running actuating mechanism.5 cl, 6 dwg

Two-speed transmission and belt drive system // 2335839
FIELD: engines and pumps, electrical engineering.SUBSTANCE: two-speed transmission (100) comprises a planetary transmission incorporating input pulley (10) coupled with the input spider (20) and a sun gear (18) and gear wheel (17). Input spider (20) contains also a large number of planetary gears (15) arranged between the sun gear (18) and gear wheel (17). Sun gear (18) comes into mesh with the electromagnetic brake element (190). Gear wheel (17) comes into mesh with output pulley (30). Idling clutch (22) is arranged between input spider (20) and output shaft (31). Brake element (190) comes into mesh with the engine idling and gets out of mesh at ratios exceeding the idling speed. When brake element (190) comes into mesh, sun gear (18) does not run thus allowing gear wheel (17) and output pulley (30) to revolve at higher speed ccompared to that of the input pulley (10).EFFECT: expanded performances.24 cl, 14 dwg

Electric driver for producing of torque abd its control system // 2322747
FIELD: electrical engineering, applicable for imparting of a precision turn, rotary and oscillatory motions to various mechanisms within a wide range of angles and angular velocities.SUBSTANCE: the electric drive has a step motor, whose shaft is coupled to the electric drive output shaft through a reduction gear. An additional motor is kinematically linked with the output shaft of the electric drive by a belt transmission, and the torque developed by it on the output shaft exceeds the friction torque on the output shaft, but it doesn't exceed the torque on the output shaft from the step motor. The electric drive control system has a DC voltage source, step motor with a stop motor control unit, additional motor with a selector switch of the direction of its rotation. The step motor control unit is provided with control outputs, and its input is connected to the DC voltage source. The additional motor is connected to an additional supply source via the selector switch of the direction of its rotation, and its control inputs are connected to the control outputs of the step motor.EFFECT: expanded dynamic range of rotary speeds of the output shaft, enhanced reliability, precision of the rotary speed and provided a turn of the output shaft through the preset angle.2 cl, 4 dwg

Electric drive for producing of torque (its modifications) and its control system (its modifications) // 2322746
FIELD: electrical engineering, applicable for imparting of a precision turn and rotary motion to various mechanisms within a wide range of angles and angular velocities.SUBSTANCE: the electric drive has a step motor, whose shaft is coupled to the output shaft through a reduction gear. An additional motor is kinematically linked with the output shaft by a belt transmission, whose belt envelopes the drive and driven pulleys located respectively on the shaft of the additional motor and an the output shaft. The torque developed by the additional motor on the output shaft exceeds the friction torque on the output shaft, but it doesn't exceed the torque on the output shaft from the step motor. The electric drive control system has a DC voltage source, step motor with a step motor control unit, additional motor with a selector switch of the direction of its rotation. A DC motor is used as the additional motor, it is connected via the selector switch of the direction of its rotation to the additional DC voltage source with a drooping volt-ampere characteristic. The second modification of the electric drive and of the system of its control provides for installation of the driven pulley on the output shaft of the step motor.EFFECT: expanded dynamic range of rotary speeds of the motor output shaft of the electric drive, enhanced reliability, precision of the rotary speed and provided a turn of the motor output shaft through the preset angle.4 cl, 4 dwg

Forward-stroke executive mechanism // 2297088
FIELD: electric machinery, particularly electromechanical power equipment, for mechanical engineering, metallurgy and so on.SUBSTANCE: mechanism comprises body. Electric motor, bearing-carrying screw with pulleys and driving belt and driving belt tension control means are arranged on the body. Protective pipe is located in the body. Installed in the protective pipe is bush arranged so that the bush may slide in longitudinal direction along guider inside the bush by means of rod with power nut and head. Dowel of rod rotation prevention means and bearing clamping nut are secured to inner surface of protective pipe. The bearings are connected to screw through intermediate bush. Mechanical retaining means, which fixes bearing clamping nut inside the body, is located on the bearing clamping nut. Protective pipe is provided with inductive end switches. Stops are inserted inside protective pipe from both ends thereof. Longitudinal groove, radial orifice and outer bead are provided in rod end. The outer bead may cooperate with the stops. Insert is introduced into longitudinal groove and radial orifice so that the insert encloses the dowel by side surfaces thereof. The insert is provided with projection arranged in dowel slot of power nut located inside the rod. Intermediate bush is made as an integral part and connected to screw by means of fixing member installed in place of any bearing installation.EFFECT: increased reliability.5 cl, 6 dwg

otor-brake // 2287889
FIELD: electrical and general mechanical engineering; self-braking motors built around squirrel-cage induction motors.SUBSTANCE: stator and rotor contacting surfaces of motor-brake built around squirrel-cage induction motor are provided with taper thread; rotor shaft is supported on one end by radial bearing and on other one, by thrust bearing with spacer disk affording cohesion between stator and rotor threaded surfaces during reverse movement of rotor; shaft extension of the latter is splined.EFFECT: simplified design, enhanced reliability of brake-motor.1 cl, 2 dwg

Face-type electrical machine with built-in braking device // 2262175
FIELD: electrical engineering.SUBSTANCE: proposed face-type electrical machine has single-disk stator and single-disk rotor, as well as reliable built-in braking device affording motor stopping as soon as field winding is deenergized. Rotor disk is coupled with rotor shaft through splined joint admitting axial displacement of rotor disk relative to shaft. Braking device disposed on one of bearing end-shields of machine frame is equipped with adjusting members enabling desired positioning of rotor disk inside annular space of machine and adjustment of brake spring pressure. Shaped supports are used for installing stator core separated from rotor core by air gap which are rigidly coupled with stator core and are free to displace relative to bearing end-shield whereon they are all secured upon setting desired air gap.EFFECT: reduced size, facilitated maintenance, enhanced operating reliability.6 cl, 1 dwg

High-speed electrical machine // 2258999
FIELD: electromechanical engineering.SUBSTANCE: proposed high-speed electrical machine has stator and rotor whose shaft journal is clamped by external rings of at least three bearings installed on eccentric axles coming in mesh with auxiliary-motor rotor. Free-running unit is introduced to prevent departure of mentioned parts from one another as they wear down that functions to control turn of auxiliary-motor rotor only in direction affording tightening of shaft journal bearings by external rings. Free-running unit that functions to reduce vibration and radial thrusts on bearings is made in the form of free-wheel clutch whose driven member is rigidly fixed on frame. Driving member is auxiliary-motor rotor. In the course of running rotor takes plays due to wear-down of contacting parts under action of torque.EFFECT: enhanced reliability and enlarged service life of electrical machine.2 cl, 2 dwg

otor drive // 2199175
The invention relates to the field of electrical engineering, namely to the motor drives the high voltage equipment

The drive // 2186451
The invention relates to the field of electrical engineering, namely, Electromechanical linear actuators with a periodic change of direction of transmission of axial forces in one direction of the axial load

Induction motor // 2171542

The hydrogenerator // 2144727
The invention relates to the field of hydropower and can be used in all hydraulic units hydraulic and hydroelectric power plants (HPPs and PSPPs)

The drive // 2123752
The invention relates to an electro-mechanical linear actuators with periodic change of the direction of movement of the RAM when the unidirectional axial load and can be used, for example, as the actuator rod pumps for pumping oil from wells under the direct articulation of the mechanism with the casing

The drive // 2089988
The invention relates to an electro-mechanical linear actuators with periodic change of the direction of movement of the RAM and can be used, for example, as the actuator rod pumps for pumping oil from wells under the direct articulation of the mechanism with the casing

The drive // 2086066
The invention relates to the linear electric and can be used, for example, as the actuator valves

The drive // 2084068
The invention relates to linear mechanisms and can be used, for example, as a drive of valves

The drive // 2084067

Ac motor // 2061290

otor // 2050668

Vertical hydrogenerator // 2043692
The invention relates to electrical engineering, in particular for generators

Executive electric singleturn mechanism // 2020695
The invention relates to electrical engineering, namely, electric actuators, and can be used in engineering for systems of automatic control

Gear motor // 2008545
The invention relates to mechanical engineering and can be used in various industries, for example in the service devices of the vehicle or aircraft that require compact geared motors
 
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