228 results about "Torque density" patented technology

The invention discloses a double-stator single-rotor planetary reduction type joint module which comprises a hollow shaft, a driver assembly, an axial magnetic flux motor, a planetary reducer and an output shaft, and the driver assembly, the axial magnetic flux motor and the planetary reducer are sequentially arranged on the hollow shaft in the axial direction; the axial magnetic flux motor comprises a rotor assembly and two stator assemblies. The two stator assemblies are symmetrically arranged on the two different sides of the rotor assembly in the axial direction. The rotor assembly comprises a rotor supporting plate and a plurality of magnetic steels, and the plurality of magnetic steels are circumferentially distributed on the rotor supporting plate; the stator assembly comprises a stator iron core and a plurality of stator windings, the stator iron core comprises a yoke part iron core and a plurality of tooth part iron cores, and each stator winding is wound on the corresponding tooth part iron core. According to the joint module, wiring can be facilitated, the integration level can be improved, the torque density of the joint module is effectively improved, and the heat dissipation performance is good.

The invention provides a multi-magnetic-circuit single-magnetic-ring dual-modulation three-rotor coaxial magnetic gear and an automobile hub motor, the magnetic gear comprises an inner rotor, a T-shaped dual-modulation magnetic ring, an intermediate rotor and an outer rotor, the inner rotor, the T-shaped dual-modulation magnetic ring and the intermediate rotor are nested in sequence and are coaxially configured to form a radial and modulation coaxial magnetic gear structure; the middle rotor, the T-shaped dual-modulation magnetic modulation ring and the outer rotor are sequentially nested and coaxially arranged to form an axial and modulation coaxial magnetic gear structure; and sum modulation is adopted between the inner rotor and the intermediate rotor, sum modulation is adopted between the intermediate rotor and the outer rotor, and the two sum modulation and sum modulation share one T-shaped dual-modulation magnetic modulation ring, so that the monotonic magnetic ring dual-modulation effect is realized. The size of the magnetic gear can be reduced, the torque transmission capacity of the magnetic gear is improved, the magnetic saturation phenomenon is restrained, the magnetic field modulation effect is enhanced, and the torque density of the magnetic gear is improved.

The invention discloses a stator double-permanent-magnet flux reverse motor, and belongs to the technical field of motors. The motor comprises a stator, a rotor, tangential permanent magnets, Halbach array permanent magnets and windings, the stator is of a double-salient-pole structure formed by combining T-shaped stator iron core blocks. The rotor and the stator are coaxially assembled, and an air gap is reserved between the rotor and the stator. The tangential permanent magnets are installed between the stator iron core blocks and magnetized in the tangential direction, and the adjacent directions are opposite. The Halbach permanent magnets are arranged at the openings of the stator slots, so that the Halbach permanent magnets have a magnetism gathering effect and can provide relatively high air gap flux density; the winding adopts a double-layer centralized design and is embedded into a stator slot; the tangential permanent magnets and the Halbach permanent magnets form a parallel magnetic circuit, and the air gap flux density and the torque density are improved through magnetic field superposition; the number of winding pole pairs meets a specific formula, and the motor structure can be optimized through a finite element method. Compared with a traditional motor, the motor has higher air gap flux density, no-load back electromotive force and torque, lower torque pulsation and a higher power factor, and the electromagnetic performance and the operation stability are remarkably improved.

The invention discloses a double-rotor single-stator planetary speed reduction type joint module which comprises a hollow shaft, a driver assembly, an axial magnetic flux motor, a planetary speed reducer and an output shaft, and the driver assembly, the axial magnetic flux motor and the planetary speed reducer are sequentially arranged on the hollow shaft in the axial direction; the axial magnetic flux motor comprises a rotor support, a stator assembly and two rotor assemblies, the two rotor assemblies are symmetrically arranged on the two different sides of the stator assembly in the axial direction respectively, and the two rotor assemblies are in transmission connection with the power input end of the planetary reducer through the rotor support. The power output end of the planetary reducer, the output shaft and the hollow shaft are in transmission connection in sequence; the stator assembly comprises a plurality of stator units which are circumferentially arranged; each of the two rotor assemblies comprises a rotor supporting plate and a plurality of magnetic steels. Wiring arrangement of the joint module can be facilitated, the integration degree is improved, and the torque density of the joint module is effectively improved.

The invention provides an asymmetric rotor structure for improving the torque density of a motor, a motor and a method, the rotor structure comprises an iron core, the iron core is provided with a shaft hole, a plurality of magnetic steel groups are distributed in the circumferential direction of the shaft hole of the iron core at equal intervals, and each magnetic steel group comprises a plurality of permanent magnet mounting groove structures, an air groove structure and a plurality of permanent magnet structures, each permanent magnet mounting groove structure is correspondingly provided with one permanent magnet structure; any number of permanent magnet mounting groove structures are configured to have a first arrangement direction on the iron core, and the air groove structures are configured to have a second arrangement direction on the iron core; wherein the first layout direction and the second layout direction are asymmetrically arranged in a space coordinate; a magnetic flux path is blocked, and magnetic flux leakage is reduced. The asymmetric design can optimize the magnetic field distribution of the permanent magnet, so that the phase difference between the reluctance torque component and the permanent magnet torque component is greatly reduced, and the effective torque superposition of the reluctance torque component and the permanent magnet torque component under wider working conditions is realized.

The invention discloses an axial skewed pole mixed excitation V-shaped Halbach permanent magnet flux switching motor, which comprises a first stator, a first rotor, a magnetic isolation disc, a second rotor, a second stator, an excitation winding and an armature winding which are sequentially and coaxially stacked by adopting a multi-section axial stacked structure, each of the first stator and the second stator comprises a double-U-pi type stator iron core module, a magnetic isolation sheet, a permanent magnet pair and a permanent magnet; the first rotor and the second rotor are respectively attached to the two sides of the magnetic isolation disc, the first stator and the second stator are respectively composed of six double-U-pi type stator core modules and six magnetic isolation sheets in an alternating mode, permanent magnet pairs are arranged in the double-U-pi type stator core modules, and permanent magnets are arranged on the outer sides of the double-U-pi type stator core modules; the excitation winding is wound on the double U-pi type stator iron core module in a crossing mode, and the armature winding is wound on the root portion of the double U-pi type stator iron core module. The permanent magnet synchronous motor has the advantages of high power density, high torque density, high stability, wide speed regulation range, low harmonic loss, high fault tolerance and high reliability.

The invention relates to the technical field of new energy commercial vehicle transmission systems, in particular to a distributed planet row gear shifting structure and a gear shifting mode thereof.The distributed planet row gear shifting structure comprises a driving mechanism, an integrated gear shifting sliding sleeve, a gear ring, a planet carrier, a planet wheel, a sun wheel and a half shaft; the integrated gear shifting sliding sleeve is movably installed on the side portion of the planet carrier, and the planet carrier is connected with the half shaft and used for outputting power to the wheel end. By the adoption of the distributed planet row structure, switching of two gears can be achieved, gear switching can be conducted according to the comprehensive requirements for the dynamic property and economical efficiency of the whole vehicle, a transmission shaft and a differential mechanism in a traditional central driving structure are omitted, energy consumption is further reduced, the torque density of the planet row structure is higher than that of a parallel shaft structure, and the torque density of the planet row structure is higher than that of the parallel shaft structure. And multiple groups of meshing functions are integrated through the integrated gear shifting sliding sleeve, the number of parts is reduced, the overall size is reduced, the weight is reduced, and the layout requirements of light weight and small space of the new energy commercial vehicle are met.

The invention relates to the technical field of electromagnetic driving, in particular to a coiled special-shaped groove composite magnetic flux three-dimensional winding water-cooling electromagnetic driving motor, which comprises a rotor assembly, a rotor assembly, a motor assembly and a motor assembly, and is characterized in that the rotor assembly comprises an axial rotor and a radial rotor, the axial rotor is used for generating axial magnetic flux, and the radial rotor is arranged at the outer end part of the axial rotor and is used for generating radial magnetic flux; the stator assembly comprises a three-dimensional winding, a radial stator iron core and an axial stator iron core; the three-dimensional winding is used for interacting with the composite magnetic flux generated by the axial rotor and the radial rotor respectively; the radial stator iron core is embedded with the three-dimensional winding; the axial stator iron core is arranged at one end part of the radial stator iron core and is embedded with the three-dimensional winding; wherein a plurality of first special-shaped mounting grooves for mounting the three-dimensional windings are annularly formed in the radial stator iron core, and a plurality of second special-shaped mounting grooves for mounting the three-dimensional windings are annularly formed in the axial stator iron core. According to the invention, the torque density of electromagnetic driving is improved.

The invention belongs to the technical field of motors, and discloses a rotor claw pole shaft radial hybrid excitation torque motor which comprises a radial magnetic field armature stator and a shaft radial magnetic field rotor. And a radial air gap is formed between the radial magnetic field armature stator and the radial magnetic field rotor. Wherein the axial-radial magnetic field rotor comprises two claw pole type rotor iron cores, a plurality of radial magnetic flux permanent magnets and axial magnetic flux permanent magnets. The two claw-pole type rotor iron cores are arranged in opposite directions, so that the claw-pole type rotor tooth parts are staggered with each other. The radial magnetic flux permanent magnets are sequentially inserted between the claw pole type rotor tooth parts, the magnetizing directions of the radial magnetic flux permanent magnets repel each other, and the axial magnetic flux permanent magnets are arranged between the two claw pole type rotor yoke parts. Through the action of the tangential permanent magnets and the axial permanent magnets on the claw pole rotor, cross coupling of magnetic circuits is realized, the air gap flux density is enhanced, the torque density and efficiency are improved, and the integration level and the space utilization rate of the motor are improved.

The invention provides an outer rotor 3D magnetic flux permanent magnet synchronous motor, which comprises a rotor assembly, a stator assembly and a rotating shaft, the rotor assembly comprises a radial permanent magnet group and an axial permanent magnet group, the stator assembly comprises a stator iron core and an armature winding, the axial end parts of the two sides of the stator iron core are connected with magnetic conductive yokes, the end surfaces of the magnetic conductive yokes are provided with magnetic conductive shoes, and the magnetic conductive shoes are connected with the armature winding. A radial winding groove is formed between every two adjacent magnetic conductive boots; the armature winding comprises a plurality of winding units, and the bent parts at the two ends of each winding unit are embedded in the radial winding grooves in the two sides of the magnetic conductive shoe. According to the motor provided by the embodiment of the invention, the magnetic conductive shoes are creatively used at the end part of the stator core to guide the windings to carry out back winding arrangement, an axial armature magnetic field is generated, a radial magnetic circuit and two-side end part axial magnetic circuits are combined to form a hybrid excitation 3D magnetic flux structure, and radial magnetic flux and two-side axial magnetic flux cooperatively do work outwards in a parallel connection manner, so that the motor is more compact in structure. And the torque density and the loading capacity of the motor are obviously improved.

The invention discloses a non-differential disc type equal-pole common-winding high-power-density motor and a design method, and belongs to the technical field of design and manufacturing of motors and new energy automobiles. The invention discloses a split-disc type high-power density motor and a design method, a double-disc or multi-disc structure is adopted, direct current or alternating current or single-phase alternating current is subjected to physical space nominal phase splitting to complete continuous circumferential rotation or linear motion of the motor, and the specific implementation scheme can be directed at direct current brush motors, direct current brushless motors, direct current brushless motors, direct current brushless motors, direct current brushless motors, direct current brushless motors and direct current brushless motors. Due to the fact that a multi-disc complementary effect is achieved, the number of pole pairs of a rotor and a stator can be equal, the number density of interaction force points of the stator and the rotor in a unit space can be increased, the electromagnetic torque or magnetic resistance torque density can be increased, and square waves can be adopted to replace sine wave currents. The negative torque can be effectively eliminated by timely performing transient outage on the square wave commutation interlaced area, the motor power density can be greatly improved, and the technical scheme is also suitable for the field of generators.

This invention provides an axial-radial composite flux permanent magnet motor, relating to the field of motor technology. It includes a rotor assembly and a stator assembly. The rotor assembly includes multiple permanent magnets uniformly arranged circumferentially. Each permanent magnet includes an integrally formed axial pole segment, a first transition segment, and a radial pole segment. The stator assembly includes a stator core and stator windings. The stator core includes stator teeth uniformly arranged circumferentially. Each stator tooth includes an integrally formed axial tooth body segment, a second transition segment, and a radial tooth body segment, corresponding to the axial pole segment, the first transition segment, and the radial pole segment, respectively. The stator windings are wound on the corresponding axial tooth body segments. This invention not only reduces magnetic energy loss and improves magnetic field coupling efficiency but also increases the effective coupling area between the permanent magnets and the stator teeth, improving the motor's torque density and power density. Furthermore, it ensures stable operation and has a wide range of applications.

The invention provides a control method and system for a high-torque-density robot joint module and relates to the technical field of robot joint module control, and the method comprises the steps that three-dimensional image information of waste to be compressed is obtained; determining a compression resistance degree three-dimensional distribution diagram of the to-be-compressed waste based on the three-dimensional image information of the to-be-compressed waste; based on the multiple sets of test fixing schemes, a high-torque-density robot joint module is controlled to fix and shake waste materials to be compressed; determining an initial fixing scheme and a preliminary compression depth based on the shaking video of the to-be-compressed waste fixed by each test fixing scheme; and based on the adjusting and fixing scheme, a high-torque-density robot joint module is controlled to fix the to-be-compressed waste, and a compressor is controlled to conduct compression. According to the method, the optimal fixing and compression cooperative control scheme of the to-be-compressed waste can be efficiently and accurately determined.

The invention relates to the technical field of axial magnetic flux double-excitation motors, and particularly discloses a modularized double-trapezoid topological axial magnetic flux double-excitation motor, which adopts an axial structure of double rotors and a single stator, and forms symmetrical air gaps. The first rotor, the second rotor and the permanent magnets are respectively formed by combining a plurality of modularized stator cores and along the circumferential direction, and after the stator permanent magnets and the rotor permanent magnets are designed into rectangular and trapezoidal structures along the circumferential direction by chamfering, the stator permanent magnets and the rotor permanent magnets are respectively loaded in accommodating grooves I and accommodating grooves II formed in the stator cores and the rotor cores; a double-trapezoid consequent pole topological structure with alternating permanent magnets and ferromagnetic materials is formed, the constraint relation between ferromagnetic teeth and the permanent magnets is effectively overcome, the optimal magnetic flux modulation effect can be achieved when torque is generated, the utilization rate of the permanent magnets is increased, and the service life of the permanent magnets is prolonged. And the double-trapezoid consequent-pole topological structure can strengthen various working subharmonics while strengthening fundamental waves, so that multi-harmonic co-excitation is realized, and the torque density of the motor is further improved.

The application provides a folding wing rope drive ball reverse helix folding and unfolding device, which comprises a folding and unfolding mechanism, a rope drive mechanism and a pulley steering mechanism; the rope drive mechanism supports the folding and unfolding mechanism and the pulley steering mechanism, the rope drive mechanism keeps the steel wire rope in a tension state by adjusting the distance, the pulley steering mechanism is used for changing the direction of the steel wire rope, the rope drive mechanism outputs rotary motion, the direction of the steel wire rope is changed, reciprocating tension action is realized, the folding and unfolding mechanism is pulled to drive the folding wing and the fixed wing to rotate around the axis. The rope drive mechanism and the pulley steering mechanism are used to realize the loosening and tension action of the connecting end of the steel wire rope, the sliding and rolling contact of the ball in the linear groove, the helical groove and the linear / helical composite groove structure is used to realize the rotary motion of the folding wing under a large lead, and the large-scale high-efficiency driving, the large-angle high-torque density folding and unfolding effect under the compact height wing space are achieved.

An actuator comprises a sun wheel roller (104), a planet wheel roller (102), an auxiliary roller (103) and a fixed gear ring (101), the sun wheel roller (104) is located in the center, and the fixed gear ring (101) is located outside all elements. The auxiliary roller (103) is positioned between the planet wheel roller (102) and the fixed gear ring (101), and the planet wheel roller (102) is in contact with the sun wheel roller (104), the auxiliary roller (103) and the fixed gear ring (101), characterized in that the sun wheel roller (104), the planet wheel roller (102), the auxiliary roller (103) and the fixed gear ring (101) all have a truncated cone geometry or a truncated cone geometry. According to the invention, a transmission device is realized, which provides a simple method for changing the pre-tightening force on the rolling contact element, thereby providing an effective means for improving the torque density and the mechanical efficiency of the transmission device.

The application discloses a claw pole stepping motor with an integrated stator core, and belongs to the field of permanent magnet stepping motor design. The application is used for solving the problem that the equivalent air gap of the main magnetic circuit is increased and the torque density is decreased due to the split stator structure of the micro claw pole stepping motor. The application comprises a stator and a rotor. The stator adopts an integrated stator core which is integrally bent and formed from a single plate material, and sequentially forms an inner claw pole, a stator tooth bottom, a stator wall, a stator tooth top and an outer claw pole from inside to outside along the radial direction. The stator tooth bottom is provided with a positioning hole for inserting and fixing a coil framework. The coil framework is provided with a wire outlet structure, so that the coil can be led out from the gap of the core. The rotor comprises a rotating shaft and a permanent magnet. The integrated stator core design eliminates the assembly joint of the split structure, effectively reduces the equivalent air gap, reduces the magnetic flux leakage, and thus significantly improves the torque density and electromagnetic load of the motor.

The application relates to a stator system of an axial flux motor, in particular to a new energy automobile driving motor technology field, a stator winding coil, containing a plurality of flat wire coils, each coil being isosceles triangle, the two base forming angles of the isosceles triangle are both greater than 60 DEG, and the bending radius in the forming process of the flat wire coil is less than one times the wire width; an end wire copper bar assembly is used for connecting the flat wire coil; a segmented stator core group without a back yoke contains a plurality of core units, each core unit is independently and separately arranged, full-open slot design is adopted between the two adjacent core units, the flat wire coil of the stator winding coil is nested with the core units of the segmented stator core group to form a winding. The stator system of the axial flux motor adopts the segmented stator core group with the full-open slot yokeless structure, the stator winding coil is nested in the core by adopting the flat vertical winding method, the axial structure is more compact, and the motor power density and torque density are greatly improved.

The application discloses an armature enhanced modular stator vernier permanent magnet motor, belongs to the motor field, and applies a stator magnetic barrier to the vernier permanent magnet motor as a modulation unit of an armature winding, breaks the original understanding of the magnetic barrier through a physical concept, and the stator magnetic barrier can enhance the cross-linking capacity of the armature winding to an excitation magnetic field, simultaneously enhances the magnetic motive force of multiple working armatures of the vernier permanent magnet motor, and thus increases the torque density of the motor; and a split tooth structure is adopted for the first stator tooth, the end length of the winding is shortened, and the motor volume is reduced; in addition, the magnetic barrier shape with the air gap side width being greater than the non-air gap side width can increase the first stator slot area without influencing the air gap structure, more windings are placed, and the torque density of the motor is further improved.

The invention discloses a hollow joint planetary gear motor, which realizes internal wiring by designing an integrated hollow channel penetrating through a motor rotor shaft and a final output planet carrier; meanwhile, the double magnetic encoder assemblies directly installed on the rotor shaft and the output shaft respectively are adopted, and high-precision position and speed detection without an intermediate transmission link is achieved; and in combination with an optimized two-stage planetary speed reduction structure and a special bearing support and torque transmission design, compact joint driving with high torque density and high control precision is realized on the premise of ensuring the strength and rigidity of the hollow structure. Back clearance errors, elastic deformation and abrasion caused by movement transmission through intermediate links such as a gear in the prior art are fundamentally eradicated, the control problems that precision is low and high-precision absolute position and multi-turn counting cannot be considered at the same time due to single or indirect encoder feedback are solved, high-torque-density transmission is ensured, and meanwhile the control precision is improved. And neat integrated wiring and ultrahigh-precision motion control capability are realized.

The invention relates to the technical field of motors, in particular to an angle phase staggered double-harmonic parallel motor which comprises a heat dissipation outer frame and further comprises stator discs, the two stator discs are both arranged in the heat dissipation outer frame and are coaxially arranged, and the two stator discs are distributed at a certain angle relative to the rotation center in the circumferential direction in a staggered mode; and the magnetic flux disc is arranged in the heat dissipation outer frame, the magnetic flux disc is located between the two stator discs, the magnetic flux disc and the stator discs are coaxially arranged, and the magnetic flux disc comprises an isolation plate. The magnetic flux disc is arranged, the permanent magnets on the two sides of the magnetic flux disc are arranged according to a Halbach array, the permanent magnets and the two stator discs with staggered angles form an independent magnetic circuit, and the air gap flux density and the torque density are improved; the two Halbach array permanent magnets are separated through the separation plate, and the permanent magnets are in a fragmentation design, so that the eddy current loss is reduced, and the heat dissipation effect is improved; large magnets and small magnets are alternately arranged to form a Halbach array, and the direction of magnetic lines of force is optimized.

The embodiment of the utility model discloses a motor and a vehicle with the same, the motor comprises a stator assembly, the stator assembly comprises a stator core and a stator winding, the stator core comprises a yoke part and a tooth part located at one side, facing the axis of the motor, of the yoke part, the yoke part and the tooth part define a winding groove, and the stator winding is arranged in the winding groove; wherein the stator winding comprises a winding wire wound in a winding groove, and the cross section contour of the winding wire is square. According to the motor provided by the embodiment of the invention, by adopting the square winding, the slot fullness rate can be improved, the torque density and the power density of the motor are higher, the energy efficiency of the motor is improved, the size of the motor can be reduced, the space occupation of the motor is reduced, and the arrangement difficulty of the motor is reduced.

The invention relates to a precision self-adaptive control system for a high-torque-density cycloid speed reducer joint, and belongs to the technical field of robot joint driving and control. The method comprises the steps that a robot joint is driven to reach a designated position through a communication device and a positioner, and collected joint posture data are transmitted to a main control device; through a joint encoder equipped on an angle driving framework, attitude data during equipment movement are analyzed based on the joint encoder, and precision self-adaptive adjustment in the joint angle direction is carried out according to the input attitude data; calculating the actual deviation between the cycloid speed reducer and the target joint through a backlash deviation model; based on the actual deviation, a motor is controlled to drive the framework to move in combination with the corresponding initial compensation parameters; and real-time precision evaluation is carried out on the collected joint postures through a precision evaluation framework, and the optimal compensation position and related posture data are recorded after the evaluation is passed. Under the same output capacity, the small size, the small weight and the large output torque are achieved.

The invention discloses a cycloid type permanent magnet gear composite motor, which comprises a fixed pin shaft assembly, a stator and a rotor, and is characterized in that the stator comprises a stator iron core and a stator winding with ps antipode pairs, and the stator winding is located at the inner side of the stator iron core; and the fixed pin shaft assembly comprises a fixed disc and a fixed pin shaft. The cycloid type permanent magnet and the permanent magnet motor are combined into a whole, so that driving and speed changing are integrated, a mechanical gear transmission device is omitted, space is saved, low-speed large-torque transmission can be directly achieved, the structure is more compact, loss of an intermediate speed changing device is reduced, fundamental wave speed changing transmission is utilized, and generated magnetic field loss is small; the cycloid type permanent magnet motor has the advantages that torque is further improved, the cycloid type permanent magnet motor is more suitable for low-speed large-torque transmission, the torque density of the motor is higher, the cycloid type permanent magnet motor also inherits the advantage of large transmission ratio of the cycloid type permanent magnet, and electric energy consumption can be reduced by controlling the stator winding to be powered on at the position with the air gap smaller than 2 mm instead of being powered on completely.

The invention discloses a magnetic flux reverse permanent magnet motor, and belongs to the technical field of motors. The magnetic flux reverse permanent magnet motor comprises a rotor, a stator, an armature winding and a non-magnetic rotating shaft, excitation units are arranged on the inner surface of the stator in the circumferential direction; each excitation unit comprises a plurality of permanent magnets, each excitation unit is provided with a plurality of magnetic poles with different widths, and a plurality of permanent magnet excitation magnetomotive force working harmonic waves can be generated; on the basis, the stator comprises stator armature teeth and stator auxiliary teeth which are arranged along the circumferential direction of the stator in a staggered manner, and the tooth surface width of the stator armature teeth is greater than that of the stator auxiliary teeth, so that the span of an armature winding is increased, and the winding coefficient of each harmonic of armature magnetomotive force is changed; and low-order non-working harmonic waves of the armature can be converted into working harmonic waves, so that the torque density is greatly improved.

The invention provides an axial magnetic flux hub motor with an embedded planetary reducer, and belongs to the technical field of hub motors. The hub motor comprises an axial magnetic flux motor and a planetary reducer integrated at the driving end of the axial magnetic flux motor. The axial magnetic flux motor adopts a structure that a rotor is clamped by double stators, a rotor output shaft of the axial magnetic flux motor is directly connected with a sun gear of the planetary reducer, and a planet carrier flange of the planetary reducer serves as a complete machine output end. The planetary reducer is highly integrated in the internal space of the axial magnetic flux motor, and a shell integrated connection structure is adopted, so that the axial size of the whole machine is shortened; meanwhile, the torque increasing effect of the planetary reducer is utilized, high-torque output is achieved in a compact space, and the contradiction between the limited hub installation space and the driving torque requirement is solved. In addition, the driving end shell and the non-driving end shell are both integrated with cooling water channels, and good heat dissipation performance is ensured. The hub assembly is compact in structure, high in torque density and capable of being directly matched with the hub space of an existing vehicle.

The invention discloses a method for optimal design of a transmission chain of a wind power gear box and a related product. A gearbox transmission chain comprises at least one planetary transmission stage, and the method comprises the steps that an optimization model is established according to the wind power gear transmission chain design problem, and the objective function of the optimization model comprises the maximum transmission chain torque density; the decision variables of the optimization model comprise the number of planetary gears in each planetary transmission stage, and the transmission ratio, modulus, helical angle, tooth width and total displacement coefficient of each planetary transmission stage; and solving the optimization problem by using an optimization algorithm to obtain an optimal decision variable value. According to the method, the mathematical model is established with the purpose of maximizing the torque density of the transmission chain, the optimization algorithm is used for solving, the optimal decision variable value is obtained, and then the design of the high-torque-density wind power gear transmission scheme is rapidly completed.

The invention discloses a dual three-phase asymmetric Halbach array permanent magnet fault-tolerant motor, and belongs to the field of permanent magnet motor design. The stator comprises a stator core, double three-phase centralized windings, armature teeth and fault-tolerant teeth. The rotor comprises a rotor iron core, asymmetric Halbach array permanent magnets and magnetic barriers, the semi-open magnetic barriers with openings facing the air gap side are arranged on the outer circumference of the rotor iron core, and the asymmetric Halbach array permanent magnets are arranged on the iron core in the circumferential direction. The tangential magnetized short permanent magnet is arranged in the magnetic barrier semi-open slot, and the tangential magnetized long permanent magnet extends to the bottom of the magnetic barrier from the magnetic barrier semi-open slot and is partially embedded in the magnetic barrier in the form; and two adjacent magnetic barriers are isolated by a magnetic isolation bridge. The leakage flux path is subjected to shunting regulation and control, so that the end leakage flux of the permanent magnet is reduced, and the effective flux utilization rate and the torque density of the air gap are improved; according to the invention, high torque density and low magnetic flux leakage are considered, the continuous output capability of the motor under a single-phase / multi-phase fault condition is enhanced, and a driving scene with a high reliability requirement is satisfied.

The invention provides an axial permanent magnetic field modulation motor with a double-row stator structure, and relates to the technical field of motors, the axial permanent magnetic field modulation motor comprises a rotor and a stator structure, the stator structure comprises an outer stator and an inner stator, the outer stator and the inner stator are concentrically arranged, and the outer stator and the surface, close to one side of the rotor, of the inner stator are located on the same plane; the rotor is located on one axial side of the stator structure, and an air gap is formed between the plane of one side, close to the stator structure, of the rotor and the stator structure; the inner stator comprises an inner stator iron core and a permanent magnet, and the permanent magnet is arranged close to one side of the rotor. The permanent magnets are used for replacing the exciting windings, so that the axial length of the inner stator is shortened, the internal space utilization rate of the motor is improved, the overall weight of the motor is reduced, the torque density and efficiency of the motor are further improved on the premise of ensuring the output of the motor, and a space is reserved on one side, far away from the rotor, of the inner stator for integrated heat dissipation design.

The invention provides a compact high-torque two-stage speed reducer for a vehicle active stabilizer bar. The compact high-torque two-stage speed reducer comprises a shell, a first-stage planetary gear train, a second-stage planetary gear train, a sealing assembly and an output flange. The first-stage planetary gear train and the second-stage planetary gear train are installed in the shell, and a first-stage sun gear of the first-stage planetary gear train serves as an output end. The output flange is connected with a second-stage planet carrier of the second-stage planetary gear train, and the output flange serves as an output end; a first-stage planet carrier of the first-stage planetary gear train is fixedly connected with a second-stage sun gear of a second-stage planet carrier, so that the first-stage sun gear rotates to drive the output flange to rotate; the first-stage planetary gear train and the second-stage planetary gear train are sealed in the shell through the sealing assembly. The problems that an existing active stabilizer bar driving system is low in torque density, long in axial size, insufficient in torsional rigidity and the like can be solved.