Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

37results about How to "Increase output thrust" patented technology

Composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator

The invention discloses a composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator, and belongs to the technical field of piezoelectric ultrasonic motors. The vibrator solves the problem that the output thrust of a motor is affected by inconsistent vibration properties of two driving feet of the conventional flexural vibration modal beam type linear ultrasonic motor vibrator. Eight flexural vibration piezoelectric ceramic chips are sleeved on a stud of the vibrator, two end covers are respectively screwed at two ends of the stud to compact the eight flexural vibration piezoelectric ceramic chips, an electrode plate is respectively arranged between the adjacent flexural vibration piezoelectric ceramic chips and between the contact faces of the flexural vibration piezoelectric ceramic chip and the big end face of the end cover, insulating bushes are arranged between the contact faces of all the flexural vibration piezoelectric ceramic chips and the stud and between the contact faces of all the electrode plates and the stud, two thin-wall beams are symmetrically arranged at two sides of the big end face of each end cover, a mounting seat is fixed at the outer side of each thin-wall beam, a driving foot is arranged on the small end face of each end cover, and the driving feet are blocks, the sections of which are in the same shape as the small end faces. The vibrator is suitable for an ultrasonic motor.
Owner:HARBIN INST OF TECH

Orthographic double-driving-type precise piezoelectric stick-slip linear motor and driving method thereof

The invention relates to an orthographic double-driving-type precise piezoelectric stick-slip linear motor and a driving method thereof. The technical problems are solved that since single-stator driving is adopted for an existing piezoelectric stick-slip linear motor, the output thrust is small, the stroke is short, and the precision is low. The motor comprises an inclined trapezoidal orthographic driving assembly, a rotor assembly, a base, a displacement adjuster, a dovetail platform and dovetail platform limit strips. The inclined trapezoidal orthographic driving assembly generates lateraldisplacement, the contact positive pressure between the inclined trapezoidal orthographic driving assembly and the rotor assembly is adjusted, and comprehensive regulation and control for the frictionforce are achieved; meanwhile, the inclined trapezoidal orthographic driving assembly is driven through different combinations of asymmetric electric signals, and multiple kinds of driving modes suchas output reinforcement type and motion emergent-stopping type can be achieved. The orthographic double-driving-type precise piezoelectric stick-slip linear motor has the advantages of large output thrust, high precision, long stroke and the like and has great application prospects in micro-nano precise driving and poisoning fields such as processing of optical precise instruments and semiconductors.
Owner:CHANGCHUN UNIV OF TECH

High-precision stick-slip piezoelectric rotating table and driving method thereof

The invention provides a high-precision stick-slip piezoelectric rotating table and aims to solve the technical problems of small thrust output, low positioning precision, low movement speed, high frictional loss, poor environmental suitability and the like of an existing stick-slip piezoelectric rotating table. The high-precision stick-slip piezoelectric rotating table comprises a casing, a limiting device I, a bearing, a gear, a rotating table, a packaging board, a rack, a limiting device II, a stator, a baffle plate and a packaging casing, wherein thrust and speed of the rotating table areincreased through meshing transmission of the gear and the rack; compared with direct drive of the micro-rotating table, the rotating table is driven to move by rotation of the gear, so that loss produced by rapid friction between a driving element and a rotating shaft is reduced; under different working conditions, positive pressure of the driving element can be adjusted by the table at any time,and output precision and environmental suitability of the rotating table are effectively improved. The high-precision stick-slip piezoelectric rotating table has good application prospect in the fields of precision optical instruments, biological microoperation and micro-nano precise drive and positioning technologies.
Owner:CHANGCHUN UNIV OF TECH

Short magnetic circuit structural cylindrical DC linear electric motor

The invention provides a short magnetic circuit structural cylindrical DC linear electric motor, relating to electric motor field and solving the problems that the existing electric motor has long magnetic circuit, low air gap magnetic density, large use amount of magnetic core and heavy electric motor, and that the dynamical property of the electric motor is poor due to large mass of rotor when needing dynamic secondary level. The two coils of the primary level in the invention are mutually connected in series and have opposite winding directions; the two coils are fixed on a winding supporting seat along the axial direction; the external magnetic guide yoke and the internal magnetic guide yoke in the secondary level are toroidal magnetic guide yokes; the permanent magnets in the secondary level are three toroidal permanent magnets; the permanent magnets are closely fit on the internal wall of the toroidal external magnetic guide yoke along the axial direction; the three permanent magnets are charged with magnetism sequentially along external radial direction, axial direction and internal radial direction; the permanent magnets and the primary level form external air gap; and the primary level and the internal magnetic guide yoke form internal air gap. The invention shortens the route of the magnetic flow of the permanent magnets, reduces secondary level mass and magnetic-leakage of the linear electric motor, enhances air gap magnetic density and improves the thrust output and dynamic response of the electric motor.
Owner:HARBIN INST OF TECH

Limited stroke high-dynamic plane motor

The invention relates to a limited stroke high-dynamic plane motor which belongs to the technical field of motors. The invention solves the problems of small stroke and small output thrust of the traditional synchronous short-stroke plane motor. The limited stroke high-dynamic plane motor comprises a motor unit and a rotor support mechanism, wherein the motor unit comprises a motor primary class and a motor secondary class; the motor unit has a short motor primary class and long motor secondary class structure; an air gap is arranged between the motor primary class and the motor secondary class; the motor primary class has an iron core-free structure and comprises a winding fixed support plate and four armature windings; the winding fixed support plate has a lip-rounding structure; each armature winding is correspondingly and centrally fixed on a lip-rounding frame of the fixed support plate, the four armature windings are positioned on the same plane, each armature winding is a symmetrical multiphase winding formed by a group of coils; the effective edge of the coil of each armature winding is perpendicular to the lip-rounding frame of the fixed support plate; and the motor secondary class has a double-edge structure and is symmetrically arranged at both sides of the motor primary class. The limited stroke high-dynamic plane motor is used as a plane motor.
Owner:HARBIN INST OF TECH

Electromagnetic suspension vibration isolation and energy feedback coordinating control method

Disclosed is an electromagnetic suspension vibration isolation and energy feedback coordinating control method. The working mode of a cylindrical linear permanent magnet motor is selected according to the relationship between the sprung mass velocity and the double-stator asymmetric cylindrical linear permanent magnet fault-tolerant cursor motor rotor velocity, a skyhook-groundhook combined control strategy is designed, and the thrust or braking force needed by motor output is determined. The motor feeds energy back to a storage battery in an electricity generation mode, and absorbs electric energy from the storage battery in an electric mode. By the adoption of the strategy, vibration in the vehicle running process is effectively absorbed, the driving and taking comfort, the running comfort and the control stability of a vehicle are improved, the absorbed vibration energy is stored in the storage battery, the energy consumption of an electromagnetic suspension system is greatly reduced, and the method has good application prospects.
Owner:JIANGSU UNIV

Two-stroke compact type piezoelectric linear motor

The invention relates to a two-stroke compact type multi-mode compound piezoelectric linear motor, which comprises a stator and a rotor, wherein the stator comprises an upper elastic block, a lower elastic block, a first group of piezoelectric actuating parts, a second group of electric actuating parts and fastening screws, wherein the first group of piezoelectric actuating parts are clamped between the upper elastic block and the lower elastic block and are uniformly clamped by the fastening screws; and the second group of piezoelectric actuating parts are firmly stuck on two opposite lateral surfaces of the lower elastic block. The rotor of the motor is a linear guide rail; and the lower part of the motor is supported by two parallel guide wheels. The motor is in a compact shape approximate to a cub and has the characteristic of two-stroke power output as well as high energy density, stable and precise motion output, high electro-mechanical transformation efficiency and simple structure and is easy for miniaturization.
Owner:SHANGHAI UNIV

Dynamically vertically end portion effect weakened short primary linear motor

InactiveCN108365730AIncrease output thrustReduce thrust pulsationPropulsion systemsDistortionSmallerThan
The present invention discloses a dynamically vertically end portion effect weakened short primary linear motor. The motor comprises a primary iron core, and a winding and a secondary winded on the primary iron core; the end winding of the primary iron core is a full tank structure; the length of a tooth located at the end portion of the primary iron core is smaller than the length of a tooth located at the middle portion of the primary iron core, and the length of a tooth, close to the middle portion of the primary iron core, located at the end portion of the primary iron core is not smallerthan the length of a tooth, far away from the primary iron core, located at the end portion of the primary iron core. The teeth at the incoming end portion and the outgoing end portion of a short primary are regularly shortened and electromagnetic gaps of corresponding end portions are regularly increased to allow the magnetic field change intensity of the incoming end and the outgoing ends of theprimary to be weakened during movement of the linear motor and relieve the magnetic distortion degree of the end portion of the primary end so as to reduce the additional loss and the electromagneticresistance generated by a dynamically vertically end effect and achieve the purposes of increasing output thrust, improving the traction efficiency and reducing the thrust fluctuation.
Owner:HUAZHONG UNIV OF SCI & TECH

Two-dimensional piezoelectric motor using relative friction to reduce resistance and control method thereof

The invention provides a two-dimensional piezoelectric motor using the relative friction to reduce the resistance. The two-dimensional piezoelectric motor comprise a sliding plate, an XY deforming piezoelectric body and a base. The XY deforming piezoelectric body is arranged between the base and the sliding plate; and one end of the XY deforming piezoelectric body is fixed with the base and the other end is fixed with the sliding plate. The two-dimensional piezoelectric motor is characterized by also including an X telescopic deformation piezoelectric body and a Y telescopic deformation piezoelectric body that are mutually fixed to form a structure with independently controllable X-direction deformation and Y-direction deformation, wherein the formed structure is a vertical deformation structure. Positive pressures enabling the two ends of the X telescopic deformation piezoelectric body, the two ends of the Y telescopic deformation piezoelectric body, and the sliding plate to be pressed mutually simultaneously are set. For the motor, the invention also provides a corresponding control method. The two-dimensional piezoelectric motor has advantages of simple structure, large thrust,high positioning precision, no electromagnetic interference and large moving range and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Bipolar driving linear motor

The invention relates to a bipolar driving linear motor belonging to the field of electric drive. A secondary part of the linear motor is in a U-shape groove shape, and permanent magnetic materials are attached to the inner sides of both sides of the U-shaped groove; a primary part comprises a plurality of iron core blocks which are positioned among the permanent magnetic materials positioned at both sides of the U-shape groove, the parts which can move following a straight line move along the U-shape groove, and the circumference of each iron core block is provided with a circulating cooling passage. The bipolar driving linear motor has high output power and high magnetic field utility ratio, thereby having high efficiency; the bipolar driving linear motor is easy to manufacture a low-speed high-thrust linear motor; the bipolar driving linear motor is provided with the circulating cooling passage, thereby having good radiating condition without causing the heat distortion of a machine tool and being beneficial to enhancing the processing precision of the digital control machine tool; the secondary part is in a U-shape groove shape, the permanent magnetic materials are attached to both sides of the U-shaped groove, the up and down position relation between the primary part and the secondary part is loosely required, air gaps of a magnetic field are more than 1 millimeter, and the precision is loosely required, thus the bipolar driving linear motor has convenient processing and assembly.
Owner:DALIAN UNIV OF TECH

Modular secondary yoke-free bilateral primary permanent-magnet switched reluctance linear motor

The invention discloses a secondary yoke-free bilateral primary permanent-magnet switched reluctance linear motor. A primary side of the motor comprises a U-shaped magnetic conductive material, an armature winding and permanent magnets arranged at a notch of the magnetic conductive material; and a secondary side of the motor is only composed of yoke-free rotor blocks. The permanent magnets are magnetized in parallel, the magnetizing directions of the primary permanent magnets on the two sides are opposite, and the permanent magnets generate a magnetic circuit in a no-load state, the magnetic circuit passes through the U-shaped magnetic conductive material to cause a short-circuited state, thereby reducing the positioning force; a magnetic flux passes through a yoke-free secondary side in the loading process to a series magnetic circuit during loading. Removal of the secondary yoke portion can reduce secondary mass and improve thrust density. A secondary iron core can be filled and fastened by an epoxy material with light weight. The motor provided by the invention has the advantages of a small positioning force, a simple secondary structure, high thrust density and the like, is suitable for an electromagnetic ejection system, and can improve the power density and the loading capacity of the ejection system.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Electromagnetic propulsion system for high-speed maglev transportation and maglev train

The invention provides an electromagnetic propulsion system for high-speed maglev transportation and a maglev train. The system comprises a linear motor and an electric suspension assembly. The linearmotor is used for accelerating and guiding the vehicle body. The linear motor comprises a first stator coil assembly, a second stator coil assembly, a third stator coil assembly, a fourth stator coilassembly, a first superconducting rotor coil assembly and a second superconducting rotor coil assembly. The first superconducting rotor coil assembly is positioned between the first stator coil assembly and the second stator coil assembly and is fixedly arranged on one side of the vehicle body. The second superconducting rotor coil assembly is positioned between the third stator coil assembly andthe fourth stator coil assembly and is fixedly arranged on the other side of the vehicle body. The electric suspension assembly is used for achieving automatic suspension of the vehicle body and comprises a permanent magnet array unit and a suspension induction plate, and the permanent magnet array unit and the suspension induction plate interact to generate suspension force. By means of the technical scheme, the technical problems that in the prior art, an electromagnetic propulsion system is low in thrust and poor in stability are solved.
Owner:HIWING TECH ACAD OF CASIC

Lifting-type rotating device and electronic device

The invention relates to the technical field of electronic devices, in particular to a lifting-type rotating device and an electronic device using the lifting-type rotating device. According to the lifting-type rotating device, a driving mechanism comprises a driving shaft and a lifting cylinder arranged on the driving shaft in a sleeving manner, a transmission mechanism comprises a linear transmission assembly and a rotating shaft, and the linear transmission assembly comprises a limiting cylinder arranged outside the upper end of the lifting cylinder in a sleeving mode and an elastic piece connected between the limiting cylinder and the lifting cylinder; and one end of the rotating shaft is arranged in the upper end of the lifting cylinder in a sleeved mode, the other end of the rotatingshaft stretches out of the top end of the limiting cylinder to be connected with an electronic mechanism, and the rotating shaft is rotatably connected with the top end of the limiting cylinder. In this way, the driving shaft and the lifting cylinder for realizing linear lifting motions and the rotating shaft for realizing rotational motions are arranged coaxially, so that the size of the whole device is reduced, and miniaturization of the device is facilitated; and meanwhile, coaxial arrangement of the driving shaft, the lifting cylinder and the rotating shaft is beneficial for optimizing the stress of the device and improving the thrust output by the device.
Owner:AAC OPTICS (CHANGZHOU) CO LTD

Clamp type inertia piezoelectric linear motor

The invention discloses a clamp type inertia piezoelectric linear motor. The clamp type inertia piezoelectric linear motor comprises a stator fixing frame and an output rod, the stator fixing frame isof a hollow structure, the two ends of the stator fixing frame are connected with a left lever and a right lever respectively, the upper ends and the lower ends of the left lever and the right leverare horizontally provided with an upper clamp block and a lower clamp block respectively, and a wedge block is placed between the two lower clamp blocks; annular laminated piezoelectric ceramic is arranged in the stator fixing frame, the upper end of the annular laminated piezoelectric ceramic abuts against the inner surface of the upper end of the stator fixing frame, the lower end of the annularlaminated piezoelectric ceramic abuts against the upper end of the wedge block, the output rod sequentially penetrates through the stator fixing frame, the annular laminated piezoelectric ceramic andthe wedge block downwards, and the lower end of the output rod extends out of the wedge block. According to the inertia piezoelectric linear motor, the stator adopts a clamp type structure, the leftlever and the right lever can be adjusted, and different precision requirements are met; and meanwhile, the clamp type structure can improve the output thrust by increasing the positive pressure and the friction force between the clamp and the output rod during working while realizing high precision.
Owner:NANJING INST OF TECH

A split stator moving iron core permanent magnet linear oscillating motor

The invention provides a stator split moving iron core type permanent magnet linear oscillating motor, which belongs to the field of linear oscillating motors, wherein the outer stator iron cores are symmetrically distributed on both sides of the inner stator permanent magnets; the movable iron cores are symmetrically distributed at equal intervals Between the outer stator core and the inner stator permanent magnet; the resonant spring is sleeved on the movement shaft; the movement shaft is connected to the geometric center of the side end of the mover iron core support; the armature winding includes two sets of coils, which are connected by a sinusoidal AC source; the inner stator permanent magnet includes several sub-permanent magnets of equal size, and the magnetization directions are all vertical directions, and the magnetization directions of adjacent sub-permanent magnets on the horizontal side are different; when the magnetization directions of adjacent sub-permanent magnets on the vertical side are opposite When the inner stator core is added between the permanent magnets of the two poles, the two sets of coils are connected in reverse series or reverse parallel; otherwise, the two sets of coils are connected in series or parallel in the same direction; the present invention prolongs the service life of the permanent magnets, and at the same time The output thrust density is improved, and the noise and vibration of the motor operation are reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Elevating rotating device and electronic equipment

The invention relates to the technical field of electronic equipment, in particular to an elevating rotating device and electronic equipment using the elevating rotating device. In the lifting rotating device of the present invention, the driving mechanism includes a driving shaft and a lifting cylinder sleeved on the driving shaft; the transmission mechanism includes a linear transmission assembly and a rotating shaft; the linear transmission assembly includes a limit cylinder sleeved outside the upper end of the lifting cylinder And the elastic member connected between the limiting cylinder and the lifting cylinder; one end of the rotating shaft is sleeved in the upper end of the lifting cylinder, and the other end of the rotating shaft protrudes from the top of the limiting cylinder to connect with the electronic mechanism, and the rotating shaft is connected to the The top of the limiting cylinder can be rotatably connected; through the above method, the drive shaft for linear lifting motion and the lifting cylinder and the rotating shaft for rotating motion are coaxially arranged, which reduces the volume of the entire device and is conducive to the miniaturization of the device. At the same time, the coaxial setting of the drive shaft, the lifting cylinder and the rotating shaft is conducive to optimizing the force on the device and increasing the output thrust of the device.
Owner:AAC OPTICS (CHANGZHOU) CO LTD

Short primary DC (direct current) linear motor

The invention provides a short primary DC (direct current) linear motor, relating to a DC linear motor, aiming at solving the problems that the traditional DC linear motor is long in magnetic circuit, low in air gap flux density and large in flux density fluctuation, and when a movable secondary level is needed, as the rotor is large in mass, the dynamical property of the motor is bad. An air gapis preserved between a primary level and a secondary level; the secondary level consists of a plurality of permanent-magnet units of the same structure, an upper magnetic yoke and a lower magnetic yoke; the polarities of two adjacent permanent-magnet units are opposite; the plurality of permanent-magnet units are arranged between the upper magnetic yoke and the lower magnetic yoke at intervals along the movement direction; the primary level is an armature winding of a single-phase coil; the primary level is mounted at the hollow cavity of the primary permanent-magnet unit; and the two effective sides of the primary coil are respectively located between two main permanent magnets in the two adjacent permanent-magnet units. The short primary DC linear motor is high in air gap flux density, less in flux density fluctuation and less in thrust fluctuation, and can be widely suitable for various DC linear motor systems.
Owner:HARBIN INST OF TECH

Composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator

The invention discloses a composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator, and belongs to the technical field of piezoelectric ultrasonic motors. The vibrator solves the problem that the output thrust of a motor is affected by inconsistent vibration properties of two driving feet of the conventional flexural vibration modal beam type linear ultrasonic motor vibrator. Eight flexural vibration piezoelectric ceramic chips are sleeved on a stud of the vibrator, two end covers are respectively screwed at two ends of the stud to compact the eight flexural vibration piezoelectric ceramic chips, an electrode plate is respectively arranged between the adjacent flexural vibration piezoelectric ceramic chips and between the contact faces of the flexural vibration piezoelectric ceramic chip and the big end face of the end cover, insulating bushes are arranged between the contact faces of all the flexural vibration piezoelectric ceramic chips and the stud and between the contact faces of all the electrode plates and the stud, two thin-wall beams are symmetrically arranged at two sides of the big end face of each end cover, a mounting seat is fixed at the outer side of each thin-wall beam, a driving foot is arranged on the small end face of each end cover, and the driving feet are blocks, the sections of which are in the same shape as the small end faces. The vibrator is suitable for an ultrasonic motor.
Owner:HARBIN INST OF TECH

Pressurizing cylinder and clamp device applying same

The invention discloses a pressure cylinder. The pressure cylinder comprises a cylinder body, a first piston component and a second piston component; the first piston component comprises a first rod part, a first piston part and a piston hole, and the lower end part of the first rod part and the first piston part are connected with the cylinder body in a sealing and sliding fit manner; the secondpiston component comprises a second rod part and a second piston part, the second piston part is connected into the piston hole in a sealing and sliding fit mode, and the second rod part is connectedwith the cylinder body in a sealing and sliding fit mode; and a pressurizing conical surface is arranged at the lower end of the second rod part, a pressurizing ball is embedded in the cylinder body,and a pressure conical surface is arranged at the upper end of the piston hole, so that the pressure conical surface abuts against the pressurizing ball and drives the pressurizing ball to move towards the second rod part, and then the second piston part is driven to move upwards. According to the pressure cylinder, the output thrust can be greatly improved, then the clamping force for clamping aworkpiece is improved, the structure is compact, the size is small, and the space can be saved.
Owner:希格斯精密机械(苏州)有限公司

Linear motor

The invention discloses a linear motor. The motor comprises an iron core, a coil, a first concentrating flux plate and a first permanent magnet, wherein the iron core comprises an iron core body and core teeth which are arranged on at least one outer side face of the iron core body and protrude out of the iron core body. At least one of all the outer side faces, provided with the core teeth, of the iron core is provided with a first magnetic conductive plate, a first permanent magnet is arranged on the side, facing the core teeth, of the first magnetic conductive plate, one magnetic pole of the first permanent magnet is adjacent to the core teeth, and the magnetic pole ends, adjacent to the core teeth, of the first permanent magnet are arranged in the mode that N poles and S poles or S poles and N poles are alternately arranged. The coil is wound on the outer side face of the iron core body, and the winding direction of the coil is parallel to the protruding direction of the core teeth. Magnetic poles of a magnetic field generated by electrifying in the coil interact with magnetic poles, adjacent to the core teeth, of the corresponding first permanent magnets, and thrust is generated in the length direction of the iron core body to push the iron core or the first concentrating flux plate to move. The winding process of the coil is very simple, and the utilization rate of the coil can be improved.
Owner:HANS LASER TECH IND GRP CO LTD +1

A high-thrust threaded linear ultrasonic motor and its working method

The invention discloses a large thrust thread type linear ultrasonic motor and a working method thereof. The motor comprises a casing, a piezoelectric driving module first linear bearing, a second linear bearing and an output shaft. The two ends of the output shaft are light columns, and the middle is a stud; the piezoelectric driving module is arranged in the casing, and includes two bearing plates, two nuts, a flexible coupling, and four piezoelectric stacks. The through hole controls the movement sequence of the four piezoelectric stacks, so that the two nuts generate periodic movement in a fixed step sequence, which in turn makes the output shaft generate positive and negative linear motion, so as to realize the forward and reverse motion of the device. The invention has high reliability, large output thrust, high versatility, is easy to popularize, and has good economic benefits.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Stator split type movable iron core type permanent magnet linear oscillation motor

The invention provides a stator split type movable iron core type permanent magnet linear oscillation motor, and belongs to the field of linear oscillation motors. Outer stator iron cores are symmetrically distributed at the two sides of an inner stator permanent magnet; rotor iron cores are symmetrically distributed between the outer stator iron core and the inner stator permanent magnet at equal intervals; a resonance spring is sleeved on the motion shaft; a motion shaft is connected to the geometric center of the side end of the rotor iron core bracket; the armature winding comprises two groups of coils and is connected with a sine alternating current source during use; the inner stator permanent magnet comprises a plurality of sub permanent magnets with the same size, the magnetizing directions are all vertical directions, and the magnetizing directions of the adjacent sub permanent magnets on the horizontal side are different; when the magnetizing directions of the adjacent sub permanent magnets in the vertical side are opposite, the inner stator iron core is additionally arranged between the two sub permanent magnets, two groups of coils are reversely connected in series or in parallel, and otherwise, the two groups of coils are connected in series or in parallel in the same direction; according to the invention, the service life of the permanent magnet is prolonged, the output thrust density is improved, and the noise and vibration of motor operation are reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Electromagnetic propulsion system and maglev train for high-speed maglev transportation

The invention provides an electromagnetic propulsion system and a maglev train for high-speed maglev traffic. The system includes a linear motor and an electric suspension assembly. The linear motor is used to realize the acceleration and guidance of the vehicle body. The linear motor includes first and second stators Coil groups, third and fourth stator coil groups, first and second superconducting mover coil groups, the first superconducting mover coil group is located between the first stator coil group and the second stator coil group and is fixedly arranged On one side of the car body, the second superconducting mover coil group is located between the third stator coil group and the fourth stator coil group and is fixed on the other side of the car body. The electric suspension assembly is used to realize the automatic movement of the car body. Suspension, the electric suspension component includes a permanent magnet array unit and a suspension induction plate, and the permanent magnet array unit interacts with the suspension induction plate to generate suspension force. The technical solution of the invention is applied to solve the technical problems of low thrust and poor stability of the electromagnetic propulsion system in the prior art.
Owner:HIWING TECH ACAD OF CASIC

High Thrust Servo Electric Cylinder

The invention belongs to the precise mechanical power source technical field and relates to a novel large-thrust servo electric cylinder. With the novel large-thrust servo electric cylinder adopted, technical problems in the prior art such as low thrust and poor practicability can be solved. The novel large-thrust servo electric cylinder of the invention comprise a cylinder body with a chamber; the cylinder body is provided with a plurality of inner screw rods which extend into the chamber and are distributed uniformly and circumferentially so as to form one circle through surrounding; outer screw rods which are distributed uniformly and circumferentially so as to form at least one circle through surrounding are arranged at the outer periphery of the inner screw rods which form one circle through surrounding; the inner screw rods and the outer screw rods respectively pass through a push plate in the chamber; the inner screw rods are in threaded connection with the push plate; the outer screw rods are also in threaded connection with the push plate; the push plate is provided with at least one push rod which can move relative to the cylinder body; and the cylinder body is provided with a driving mechanism which can drive the inner screw rods and the outer screw rods to rotate synchronously. Compared with the prior art, the novel large-thrust servo electric cylinder of the invention has the advantages of large thrust and high practicability.
Owner:嘉兴市海创通用设备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products