Motor-brake |
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IPC classes for russian patent Motor-brake (RU 2287889):
    
 Face-type electrical machine with built-in braking device / 2262175
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.
 High-speed electrical machine / 2258999
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.
 Motor 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
 Multiphase fractional (q = 4/7) winding of electrical machines ac / 2236077
The invention relates to the field of electrical engineering and of electrical engineering, namely to dvenadtsatiletny asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters, frequency-regulated electric drive AC
 Desativada fractional (q=3/5) winding of electrical machines ac / 2231890
The invention relates to the field of electrical engineering and can be used in electrical engineering when creating devyatietazhnykh asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters in variable frequency AC drive
 Desativada fractional (q=4/7) winding of electrical machines ac / 2231194
The invention relates to the field of electrical engineering and of electrical engineering, namely to dvenadtsatiletny asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters, frequency-regulated electric drive AC
 Desativada fractional (q=5/4) winding of electrical machines ac / 2227359
The invention relates to the field of electrical engineering and of electrical engineering and can be used in devyatietazhnykh asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters in variable frequency AC drive
 Dvenadtsatiletny fractional (q=4/5) winding of electrical machines ac / 2227358
The invention relates to the field of electrical engineering and of electrical engineering, namely to dvenadtsatiletny asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters, frequency-regulated electric drive AC
 Desativada fractional (q=4/5) winding of electrical machines ac / 2227357
The invention relates to the field of electrical engineering and of electrical engineering, namely to devathasan asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters in variable frequency AC drive
 Desativada fractional (q=3/4) winding of electrical machines ac / 2227356
The invention relates to the field of electrical engineering and of electrical engineering, namely to devathasan asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters, frequency-regulated electric drive AC
 Multiphase fractional (q=6/7) winding of electrical machines ac / 2224347
The invention relates to electrical engineering and electrical engineering, namely to dvenadtsatiletny asynchronous motors with squirrel-cage rotor, fed from a solid state frequency converters, frequency-regulated electric drive AC
 The ac motors / 2195068
The invention relates to the field of electrical engineering, in particular to drive an alternating current of high frequency asynchronous motors
 Motor-brake / 2287889
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.
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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
The invention relates to stoppers and can be used in General mechanical engineering. Known locking devices as a separate structure that is attached to the motor [1]. The disadvantage of this design is its complexity. The objective of the invention is to simplify the design and increase the reliability in operation. This problem is solved by that in a motor-stopper containing an asynchronous motor with squirrel-cage rotor, the contact surface of the stator and rotor are tapered thread, the rotor shaft leans with one hand on the thrust bearing with spacer disc, and on the other side on a roller radial bearing and the output shaft end of the rotor is provided with a spline. The invention is illustrated by drawings, where figure 1 shows the General construction of the motor-stop figure 2 - node of the thrust bearing. Motor-stopper, designed on the basis of the asynchronous motor with squirrel-cage rotor has a shaft 1, which is installed on the rotor 2, the thrust bearing 3 with spacer disc 4 and roller radial bearing 5. The bearings 3 and 5 are installed in the housing 6 on which is mounted the stator pack 7. The surface of the rotor 2 and the stator 7 are contacted by the tapered thread 8. Output horse the shaft 1 provided with slots 9. The ring 10 bearing 3 mounted with a gap with respect to the housing 6. The ring 11 of the bearing 3 and spacer washer 4 is installed with a clearance relative to the shaft 1. The device operates as follows. When the motor is started and the rotation of the rotor 2 in the direction of taper threads between the surfaces of the rotor 2 and the stator 7 are in untwisted condition. Distance washer 4, the support bearing 3 controls the degree of unwinding of the thread, forming a constant minimum clearance. Distance washer 4 is such that it is guaranteed engages tapered threads 8 during the rotation of the rotor 2 in the direction opposite to the working direction. Due to the presence of the minimum gap, the rotor 2 rotates freely relative to the stator 7. In the case of engine stop and try to turn the shaft 1 and the rotor 2 in the opposite direction the shaft 1 due to the presence of the slot 9 and the implementation of the gaps on the rings 10 and 11 of the thrust bearing 3, is moved, since the tapered threaded surface of the rotor 2 is in contact with the threaded surface of the stator 7. Conical thread 8 is twisted, and the rotor 2 almost instantly now. Due to the fact that operation of the conical thread is fast, i.e. when moving the rotor 2 relative to the stator 7 is not a complete revolution, the longitudinal movement of the shaft 1 with the ring 10 bearing 3 minimal is but does not cause displacement of the working bodies of the bearing 3 relative to each other. Repeated actuation of the motor again rotates the rotor 2 in the direction of. Thread 8 is opened. The rotor 2 is shifted away from the contact screw surfaces and the shaft 1 is moved. Between the rotor 2 and the stator 7 is again installed the working gap, because the ring 10 bearing 3 is returned to its original position and the bearing 3 is again based on the thrust washer 4. Motor-stopper is a one-piece design, which is installed on the frame as a conventional electric motor and connected to the electricity network as an asynchronous motor with squirrel-cage rotor, combining the functions of the motor and the stopper. Sources of information 1. Maemowiki. Design of induction motors. Kuibyshev book house, 1970 Motor-stopper, containing asynchronous motor with squirrel-cage rotor mounted on the shaft, and a stator mounted on the housing, wherein the contact surface of the stator and rotor are made with tapered threads, the rotor shaft leans with one hand on the thrust bearing with spacer disc bonding threaded surfaces during reverse motion of the rotor, and with the other hand on the radial bearing, and the output end of the shaft provided with splines.
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