67results about "Dynamo-electric gears" patented technology

The present disclosure relates to an electromechanical apparatus (100) and to a transmission unit comprising the electro-mechanical apparatus (100) for changing motion parameters and to a vehicle comprising the transmission unit, the electro-mechanical apparatus (100) comprising a first rotating electromechanical ma-chine (110) comprising a first stator (112) and a first rotor (120), a second rotating electromechanical machine (130) having a smaller radial extension than the first rotating electromechanical machine (110) and comprising a second stator (132) and a second rotor (140), wherein the second rotating electromechanical ma-chine (130) is arranged radially within the first rotating electromechanical ma-chine (110) thereby forming an interleaving region (176) of the electromechanical apparatus (100), and wherein the first stator (112) and the second stator (132) are ironless, and wherein the first rotor (120) and the second rotor (140) are per-manent-magnet rotors or rotors comprising a winding for electrical excitation.

A magnetic modulator includes: a magnetic pole piece; a support portion disposed in an axial direction of the magnetic pole piece to rotationally support the magnetic pole piece; and a resin portion that integrates the magnetic pole piece and the support portion, in which at least one of both end surfaces of the magnetic pole piece in the axial direction is exposed.

The present invention discloses a water-cooled, sealed permanent magnet coupler. The permanent magnet coupler includes a housing, an input-side partition plate and an output-side partition plate disposed therein. The housing is separated by the input-side partition plate and the output-side partition plate into an input-side oil chamber, a rotating assembly water chamber, and an output-side oil chamber. An input shaft and an output shaft are axially mounted within the housing, a rotating assembly and a speed regulating assembly are sequentially disposed at the front end of the output shaft. An input-side sealing structure is disposed between the input-side partition plate and the rotating assembly, and an output-side sealing structure is disposed between the rotating assembly and the output-side partition plate. Even after wear and aging of the sealing rings, the present invention prevents oil-water cross-cavity leakage due to the design of the two labyrinth seal structures, thereby extending the service life of each bearing. Lubricating oil loss is also reduced, preventing the lubricating oil from deteriorating due to water ingress, and extending the overhaul period of the permanent magnet coupler.

The utility model provides a generator and a vehicle, the generator comprises a generator body, the generator body comprises a generator shell and a rotor shaft, and the generator shell is provided with heat dissipation holes; the heat dissipation fan is used for realizing ventilation of the heat dissipation holes and is arranged on the rotor shaft; the cleaning structure can perform a cleaning action to clean the heat dissipation holes; and the cleaning fan can be driven by wind power of the cooling fan to rotate so as to drive the cleaning structure, and the cleaning fan is connected with the cleaning structure. The cleaning structure is independently driven by the cleaning fan outside the generator body, the rotor shaft and the cleaning structure do not need to be connected, the rotor shaft cannot be broken due to eccentricity of the rotor shaft and the cleaning structure, and the situation that the rotor shaft is broken is reduced; in addition, wind power generated by rotation of the cooling fan enables the rotating speed of the cleaning fan to be small, power input abrasion between the cleaning fan and the cleaning structure can be reduced, the possibility that the cleaning structure loses the self-cleaning function due to the fact that the cleaning structure cannot rotate along with the cleaning fan is avoided, and then the cooling effect of the generator is guaranteed.

The present disclosure relates to a double rotor machine (DRM) for selective mechanical power transmission and / or electrical power generation in a vehicle driveline, typically comprising an input drive shaft, an input rotor, and an output rotor coupled to an output drive shaft. In a preferred variant, the double rotor machine comprises an input drive shaft for mechanically coupling the double rotor machine to an internal combustion engine, the input drive shaft extending axially into a housing of the double rotor machine. Typically, the input rotor is mechanically interconnected to the input drive shaft and is rotatably disposed inside the housing about a common axis of rotation. The output rotor is mechanically interconnected to an output drive shaft, rotatably disposed about a common axis of rotation, passing through the housing for mechanically coupling the double rotor machine to a consumer of mechanical power.

The application discloses a kind of permanent magnet coupler induction current self-regulating method and device and permanent magnet coupler for realizing soft start and overload torque limiting protection of equipment, and its features are that resistance is connected in series in two lead terminals of induction winding, the centrifugal force that centrifugal slider is received when being installed radially on inner rotor is different at different rotational speed of inner rotor, the resistance value of resistance connected in series in conductive loop including induction winding is automatically regulated, so that the induction current in conductive loop of induction winding is little changed under different induction electromotive force generated by induction winding under different working conditions of permanent magnet coupler, so that the transmission torque of permanent magnet coupler is automatically regulated, and it is changed in a very small range and tends to be constant, realizing soft start and overload torque limiting protection of equipment;The principle of the application is reliable, simple in structure, easy to realize, and can be widely applied to equipment such as belt conveyor, elevator and other equipment that need soft start, and various large inertia equipment such as ball mill, mixer, crusher and other equipment that need to improve starting performance.

A magnetic geared electrical machine includes: a stator; a magnetic pole piece rotor including a plurality of magnetic pole pieces disposed radially inward of the stator; an inner rotor including a plurality of rotor magnets, disposed radially inward of the plurality of magnetic pole pieces, and configured to rotate at a higher speed than the magnetic pole piece rotor; and a fan for cooling at least one of the stator, the magnetic pole piece rotor, or the inner rotor. The magnetic pole piece rotor further includes a power transmission shaft disposed on one side in an axial direction relative to the plurality of magnetic pole pieces, and configured to transmit rotational power to and from an external device. The fan is attached to the inner rotor on an opposite side to the power transmission shaft with the rotor magnet therebetween in the axial direction.

The utility model discloses a stable working active magnetic disk assembly, which comprises a disk body and a permanent magnet arranged on the disk body, and further comprises a bearing arranged at the rotation center of the disk body, the bearing comprises a first rotation part and a second rotation part which rotate relatively, the first rotation part is fixedly connected with the disk body, and the second rotation part is fixedly connected with the disk body. The second rotating part protrudes out of the disk body and forms the upper end face of the driving magnetic disk assembly. The driving magnetic disk assembly can bear relative rotation with the corresponding cup body or the driven magnetic disk through the bearing, and the distance between the driving magnetic disk assembly and the driven magnetic disk and the magnetic acting force are guaranteed. Correspondingly, the utility model further discloses a power assembly which comprises the motor and the driving magnetic disk assembly, and the driving magnetic disk assembly has the moving gap in the axial direction of the motor shaft. And the assembly error between the driving magnetic disk assembly and the driven magnetic disk is adjusted by utilizing the axial movement gap of the driving magnetic disk assembly, so that the distance and the magnetic acting force between the driving magnetic disk assembly and the driven magnetic disk are further ensured.

The disclosure relates to a double rotor machine (DRM) for selective transmission of mechanical power and / or generation of electrical power in a drive train of a vehicle typically comprises an input drive shaft, an input rotor and an output rotor coupled to an output drive shaft. In a preferred variation, the double rotor machine comprises the input drive shaft for mechanically coupling the double rotor machine to an internal combustion engine, said input drive shaft extending in an axial direction into a housing of the double rotor machine. Typically, the input rotor is me chanically interconnected to the input drive shaft and is arranged inside the housing rotatable about a common axis of rotation. The output rotor being arranged rotatable about the common axis of rotation and being mechanically interconnected to the output drive shaft passing through the housing for mechanically coupling the double rotor machine to a consumer of mechanical power.

The application discloses a kind of adjustable blade vertical axis ocean current energy conversion module and ocean current energy generating device, adjustable blade vertical axis ocean current energy conversion module is symmetrically set with the array of double adjustable blade vertical axis water turbine of guide vane, can realize the improvement of ocean current energy conversion efficiency, adjustable blade vertical axis ocean current energy conversion module is connected with flow velocity self-adapting power generation module and is installed in floating intelligent regulating platform to form ocean current energy generating device, axial flux permanent magnet synchronous generator is matched with electronic unit control system to form flow velocity self-adapting power generation module, so that the device generates electricity stably, the direction adjusting mechanism loaded by floating intelligent regulating platform can meet the direction change demand of adjustable blade vertical axis ocean current energy conversion module.The application solves the problems of low energy conversion efficiency and unstable power generation of existing ocean current energy generating device, realizes the improvement of ocean current energy conversion efficiency and power generation quality, and enhances the survivability of device.

The present disclosure provides a direct drive electric variable speed turbofan comprising: a first magnetic gearbox assembly connected to a fan of a turbofan engine; a second magnetic gearbox assembly connected to a spool of the turbofan engine; and a speed controller configured to adjust a rotational speed of the fan based on a rotational speed of the spool by selectively coupling and decoupling the first magnetic gearbox assembly with the second magnetic gearbox assembly. In various aspects, the first magnetic gearbox assembly or the second magnetic gearbox assembly comprises a permanent magnet array, while a different one of the first magnetic gearbox assembly or the second magnetic gearbox assembly comprises a rotor winding separated from the permanent magnet array by an air gap; and the speed controller is configured to selectively couple and decouple the first magnetic gearbox assembly and the second magnetic gearbox assembly with each other via control of switches in a winding circuit having the rotor winding.

The invention discloses an integrated skid-mounted structure permanent magnet flexible non-contact energy-saving speed regulation water pump system, and relates to the technical field of speed regulation equipment. A high-power motor with a driving function is fixedly mounted on a left side plate body of the fixing frame through bolts; by means of deep integration of embedded control, magnetic field coupling and mechanical transmission, efficient, intelligent and reliable non-contact power transmission and speed regulation are achieved, the output torque and the rotating speed are flexibly adjusted through a star wheel piece, an air gap is accurately controlled through a linear execution mechanism, and the power transmission efficiency is improved. The magnetic field coupling effect between the permanent magnet rotor and the conductor rotor is optimized, torque is transmitted in a non-contact mode, the output speed is adjusted, the integrated water pump flow, the water pump pressure and the slip monitoring system feed back the operation state in real time, closed-loop control over an air gap is achieved through a PID algorithm, the transmission efficiency and the system stability are guaranteed, and the reliability of the system is improved. And intelligent online diagnosis of potential faults can be realized.

The application relates to a transmission device which comprises a motor and a speed reducer and further comprises a magnetic coupler connecting the motor and the speed reducer; the magnetic coupler comprises a driving cylinder and a driven cylinder; the driving cylinder comprises a bearing cylinder, a heat dissipation assembly and a first magnet; the heat dissipation assembly comprises a mounting hole, a heat dissipation piece and a driving ring; the inner wall of the bearing cylinder is provided with the mounting hole; the mounting hole is provided with the heat dissipation piece; the heat dissipation piece comprises a fixed plate, a movable plate, a first screw rod and a gas guide pipe; the right side of the bearing cylinder is fixedly connected with a first connecting ring; the bearing cylinder is provided with the first magnet which is opposite to the mounting hole and is connected with the inner ring of the first connecting ring at the right end; the first magnet is in contact with the bearing cylinder through a convex ridge; the left part of the driven cylinder extends into the bearing cylinder and is connected with a second magnet which is opposite to the first magnet inside and outside. The application solves the problem that the high temperature generated by the coupler on the belt conveyor transmission device can affect the magnetism of the magnet.

The present disclosure relates to electromagnetically-controlled magnetic cycloidal gear assemblies configured to achieve enhanced torque capacity, and methods of operating same. In one example embodiment, a method includes sensing a position of a cycloid relative to a stator, where the stator includes a plurality of electromagnets, and the cycloid includes a plurality of permanent magnets. Also, the method includes determining respective torque characteristics concerning the respective electromagnets based upon the sensed position, where the respective torque characteristic that is determined concerning each respective one of the electromagnets is indicative of a respective relative position of the respective electromagnet in relation to a respective closest one of the permanent magnets. The method additionally includes outputting from a controller, for receipt respectively at least indirectly by the respective electromagnets or respective control devices coupled thereto, a plurality of output signals respectively based at least in part upon the respective torque characteristics.

A position of a magnetic pole piece (54a) in an axial direction is easily managed. A magnetic modulator (50) includes the magnetic pole piece (54a), an output shaft portion (51) and a bearing support ring (55) which are disposed in the axial direction of the magnetic pole piece (54a) to rotationally support the magnetic pole piece (54a), and a resin portion (56) that integrates the magnetic pole piece (54a), the output shaft portion (51), and the bearing support ring (55). At least one of both end surfaces (54c) in the axial direction of the magnetic pole piece (54a) is exposed. In this manner, an axial position of an end surface (54c) of the exposed magnetic pole piece (54a) can be directly measured.

A power transmission device is provided with an input shaft (20), a first output shaft (40), a second output shaft (50), and an output shaft switching unit (25). The input shaft is rotated by input of a driving force. The first output shaft is rotated by the driving force transmitted from the input shaft. The second output shaft is disposed at a different position from the first output shaft and rotates by the driving force transmitted from the input shaft. The output shaft switching part is switched between a first output state and a second output state. The first output state restricts rotation of the second output shaft based on the driving force and allows rotation of the first output shaft based on the driving force. The second output state restricts rotation of the first output shaft based on the driving force and allows rotation of the second output shaft based on the driving force.

The present description relates to an electrical machine (21) comprising: a stator (19c) having an internal surface (190c) delimiting a cavity centered on an axis of rotation (X'') of the electrical machine; a plurality of first electromagnets (57) configured to generate a first magnetic field, the plurality of first electromagnets (57) being fixed to the stator (19c); a magnetic generation device (50) configured to generate a second magnetic field, the magnetic generation device (50) being fixed to the stator (19c); a magnetic excitation device (51); and a first shaft (19a) extending within the cavity along the axis of rotation (X''); and a second shaft (19b) extending within the cavity, along the axis of rotation (X''), being concentric with the first shaft (19a);in which one of the first and second shafts (19a, 19b) is configured to generate a third magnetic field, following excitation by the magnetic excitation device (51), the third magnetic field being synchronized with: the first magnetic field so as to implement an electromechanical conversion between a mechanical power from one of the first shafts (19a) and the second shaft (19b), and an electrical power from the plurality of first electromagnets (57); and the second magnetic field so as to transmit a torque between the first shaft (19a) and the second shaft (19b). Figure for the abstract: Figure 11b;

To provide turbofan engines configured to convert mechanical rotational energy from turbine-driven spool shafts into mechanical rotational energy in a fan via electromagnet forces.SOLUTION: The present disclosure provides a direct drive electrically-geared turbofan comprising: a first magnetic gearbox assembly 210A connected to a fan 150; a second magnetic gearbox assembly 210B connected to a spool shaft 160A of a turbofan engine; and a speed controller configured to adjust a rotational speed of the fan by selectively coupling and decoupling the magnetic gearbox assembly. The magnetic gearbox assemblies include a permanent magnet array, while including a rotor winding separated from the permanent magnet array by an air gap 230. The speed controller is configured to selectively couple and decouple the magnetic gearbox assemblies mutually by controlling a switch in a winding circuit with the rotor winding.SELECTED DRAWING: Figure 2C

The invention discloses a design and implementation method of a high-performance modular magnetic lead screw and the magnetic lead screw, and belongs to the technical field of magnetic transmission. The method comprises the following steps: discretizing a target spiral magnetic circuit, establishing a three-dimensional finite element model, and iteratively optimizing the number of blocks of an arc-shaped permanent magnet; prefabricated mounting holes are formed in the arc-shaped permanent magnet blocks, the rotor base body and the rotor base body respectively; a fine model containing fastener details is established, and the mechanical strength and electromagnetic performance of the fine model are simulated and verified; whether the internal operation space of the assembly meets the tool accessibility and maintenance requirements or not is evaluated, and different assembly processes are adopted for assembly and installation. The full-process closed-loop optimization and decision-making of the magnetic lead screw from design, simulation to assembly are realized, and the performance, the reliability and the maintainability of the product are remarkably improved.

To eliminate the need for a torque sensor.SOLUTION: A magnetic modulation gear device 30 includes an input shaft 23, an output shaft 32b that is shifted and output with respect to the input shaft 23 through a reduction gear unit, an input shaft-side sensor 35 that measures a rotation angle on the input shaft 23 side, and an output shaft-side sensor 36 that measures a rotation angle on the output shaft 32b side. For example, a drive device 1 includes the magnetic modulation gear device 30, a drive source 20 that inputs torque to the input shaft, and a control device 40 that controls the amount of operation of the drive source to achieve a target torque on the basis of the measured rotation angle of the input shaft side and the measured rotation angle of the output shaft side. The drive device 1 controls the torque on the output shaft side without using a torque sensor.SELECTED DRAWING: Figure 1

A modular drive unit (A1, A2, A3, A4, A5, A6, A7) for adjusting a rotary joint of a robot arm (100) has: a servo motor with a motor housing (1, 1.1, 1.2, 1.3) and a drive shaft (2); a strain wave gear (4.1, 4.2) coupled to the drive shaft; a holding brake (3) coupled to the drive shaft; a drive encoder (5.1) for detecting a position of the drive shaft; an output encoder (5.2) for detecting a position of an output (4) of the strain wave gear; a servo controller (6) signal-connected to the drive encoder and the output encoder; a load sensor (7); and a hollow shaft (8) for passing the cable axially through the drive unit. The invention also relates to a robot arm having the drive unit.

A drive device (2, 2') for adjusting a vehicle assembly comprises a drive motor (20) having a stator (201) and a rotor (203) rotatable relative to the stator (210) about a rotational axis (D), wherein the stator (201) has an arrangement of stator teeth (202) with coil windings (206) arranged thereon for generating a magnetic stator field and the rotor (203) has an arrangement of first magnetic elements (204), and a gearbox for transmitting a torque to an output element (270) for adjusting the vehicle assembly. A magnetic drive (29) for driving the transmission has a magnetic wheel (291) coaxial to the axis of rotation (D) with an arrangement of second magnetic elements (292), wherein the rotor (203) forms a drive wheel of the magnetic drive (29) such that a transmission ratio of the magnetic drive (29) is determined by the arrangement of first magnetic elements (204) and the arrangement of second magnetic elements (292).

The invention discloses a shaftless pump pushing device based on a swash plate type plunger pump, and relates to the technical field of piston pumps. A shaftless pump pushing device based on a swash plate type plunger pump comprises the swash plate type piston pump, a power module and a supercritical carbon dioxide power generation module, a water suction opening is formed in the lower portion of the swash plate type piston pump, a water drainage opening is formed in the rear portion of the swash plate type piston pump, and the supercritical carbon dioxide power generation module is connected to the front portion of the swash plate type piston pump. Through the unique structural design, the swash plate type piston pump and the supercritical carbon dioxide power generation module are organically combined, and efficient and stable energy conversion and transmission are achieved. According to the device, the hydrodynamic performance is effectively improved through the water absorption and drainage functions of the swash plate type piston pump, meanwhile, the energy utilization efficiency of the device is further improved through introduction of the supercritical carbon dioxide power generation module, and a new thought and direction are provided for technical development of related fields.

The present application provides a magnetic power generator, comprising: a rotating wheel, wherein a plurality of magnetic force bearing units are arranged around the rotating wheel so that a notch is formed between every two adjacent magnetic force bearing units, the adjacent magnetic force bearing units face each other with the same magnetic pole, an axis hole of the rotating wheel is fixed to a center shaft, and an encoder is arranged at the rear end of the center shaft; a force applying wheel driven by a servo motor to rotate, wherein a plurality of magnetic force applying units are arranged around the force applying wheel so that the magnetic force applying units engage into the corresponding notches of the rotating wheel when the force applying wheel rotates, and the front side of the magnetic force applying unit and an adjacent magnetic force bearing unit face each other with the same magnetic pole; and a synchronous control unit connected to the encoder and the servo motor so as to obtain a rotation state signal of the rotating wheel by means of the encoder, and drive the servo motor to control the rotating speed of the force applying wheel in a synchronous or equal proportion on the basis of the rotation state signal, so that when the magnetic force applying units engage into the corresponding notches, thrust can be applied to matched magnetic force bearing units.

A device for generating electricity by means of kinetic energy of an object is a brand-new electricity generating mode. The driving motor drives a group of kinetic energy generation balancing weights with huge mass to enable the kinetic energy generation balancing weights to rotate at a high speed, so that strong kinetic energy is generated, when the kinetic energy generation balancing weights reach a certain rotating speed, the clutch is combined, and the strong kinetic energy is input into the generator through the transmission shaft, the clutch and the kinetic energy input shaft to generate electricity. And a group of kinetic energy storage balancing weights are arranged between the generator and the kinetic energy input shaft and are used for storing transmitted kinetic energy and maintaining the rotating speed of the generator to be stable. Kinetic energy is continuously converted into electric energy, the rotating speed of the kinetic energy generation balancing weight is continuously reduced, the rotating speed of the generator is also continuously reduced, after the rotating speed is reduced to a certain rotating speed, the clutch is disconnected, the driving motor drives the kinetic energy generation balancing weight to rotate again, the kinetic energy generation balancing weight rotates at a high speed again, and after the rotating speed reaches a certain rotating speed, the clutch is combined again. And the next kinetic energy input power generation process is completed.

There is provided a hybrid electric aircraft propulsion system and method for operating same. The method comprises providing, to a first electric motor and a second electric motor, alternating current (AC) electric power from a generator, the generator receiving rotational power from a thermal engine, providing, to the first electric motor and the second electric motor, AC electric power from at least one motor inverter, the at least one motor inverter configured to convert DC electric power from a DC power source into AC electric power, and selectively driving the first and second electric motors from the generator, the at least one motor inverter, or a combination thereof, wherein the first electric motor drives a first rotating propulsor and the second electric motor drives a second rotating propulsor.

The maintenance-free long-service-life permanent magnet coupler comprises a first flange plate, a driving shaft is fixedly connected to the side wall of the first flange plate, a heat conduction shell is rotationally connected to the outer side of the driving shaft, and two limiting semi-rings which are symmetrically distributed are slidably connected to the side wall of the heat conduction shell; by arranging the limiting semi-rings and rotating the rotating disc, the rotating disc drives the screw rod to rotate, the screw rod and the connecting frame do threaded motion, the connecting frame slides on the outer side of the heat conduction shell, the heat conduction shell limits the connecting frame, the connecting frame is prevented from rotating, the heat conduction shell is prevented from rotating, the heat conduction efficiency is improved, and the service life of the heat conduction shell is prolonged. When the connecting frame moves, the limiting semi-ring and the sealing plate are driven to move, the sealing plate seals the heat conduction shell, the limiting semi-ring limits the driven shaft, meanwhile, the limiting semi-ring moves to different heights to limit the driven shaft at different positions, and the first fixing plate and the second fixing plate are used for installing the screw rod.

The pipeline type efficient power generation device comprises a pipeline, the upper portion of the pipeline is connected with a mounting pipe, the upper portion of the mounting pipe is provided with a supporting seat, the upper portion and the lower portion of the supporting seat are provided with an upper bearing box and a lower bearing box respectively, and the lower end of the lower bearing box is connected with the upper end of the mounting pipe; a linear driver is installed on the upper portion of the installation ring and is in driving connection with an installation plate, a generator is installed on the installation plate, an outer magnetic rotor is installed at the end of an input shaft of the generator, a hollow shaft is rotationally arranged in the supporting base, the lower end of the hollow shaft is located in the pipeline and provided with blades, and the upper end of the hollow shaft is located in the sleeve and provided with an inner magnetic rotor.

The system comprises a first part and a second part arranged to be relatively movable relative to the first. wherein the first part comprises a sword part (2) extending in the direction of movement, in particular of an elongated design, wherein the second part comprises at least one rotatably mounted, driveable disk (1) wherein the axis of rotation is oriented perpendicular to the direction of movement, wherein the disk (1) has permanent magnets (20, 21) on its circumference, the magnetization direction of which is oriented in the radial direction or in a direction opposite to the radial direction, wherein the magnetization direction of each permanent magnet (20, 21) is opposite to the permanent magnet (20, 21) nearest in the circumferential direction, wherein the sword part (2) is made of a stamped sheet steel part and has a pole structure along the direction of movement such that the driving force is generated when the permanent magnets (20, 21) rotate past the pole structure according to the reluctance motor principle, wherein the second part has another disk (1) fitted with permanent magnets (20, 21), wherein the sword part (2) is arranged between the discs (1) wherein the pole structure has teeth that are evenly spaced apart from each other in the direction of movement, wherein the teeth have a tooth head that widens towards the respective disc (1), wherein the permanent magnets (20, 21) have a circumferential distance to their nearest neighboring permanent magnet (20, 21) which is essentially equal to, and in particular exactly equal to, the distance between the poles of the pole structure.