14 results about "Magnetic stabilization" patented technology

The invention discloses a variable flux memory motor and a shaftless rim underwater thruster, the motor comprises a stator, an armature winding, a rotor, a plurality of low-coercivity permanent magnets and a plurality of high-coercivity permanent magnets, the armature winding adopts a twelve-phase winding, the low-coercivity permanent magnets and the high-coercivity permanent magnets are arranged in the rotor and are alternately distributed in the circumferential direction; the low-coercive-force permanent magnet is connected with the high-coercive-force permanent magnet in series in a magnetism increasing state and a magnetism weakening state, and in the magnetism increasing state, the magnetomotive force direction of the low-coercive-force permanent magnet is consistent with that of the high-coercive-force permanent magnet; and in the weak magnetic state, the reverse is achieved. By adopting the series magnetic circuit structure design of the two different coercive force permanent magnets, the load magnetic stabilization capability of the low-coercive force permanent magnets in the motor can be effectively improved, so that the magnetic field stability and the overall performance of the motor are improved.

A generator comprises a pair of coaxially aligned rotors including an inner rotor disposed within an outer rotor that combine to form a magnetic field and armature pair. First and second prime movers rotate the rotors in opposite relative directions such that electricity is produced from relative rotation of the magnetic field and armature. First and second flywheels are connected to or integral with the rotors to rotate therewith. Each flywheel has a magnetic circumference. One or more magnetic supports are arranged relative to the circumference to cause at least one vertically acting magnetic force to be exerted on the circumference to support the flywheel's weight. A pair of magnetic stabilisers are arranged on respective opposed lateral sides of each flywheel. The stabilisers cause opposed horizontally acting magnetic forces to be exerted on the flywheel's circumference to impede lateral movement of the flywheel to stabilise the flywheel.

The application provides an electromagnetic rotary energy harvesting device and method based on a double-layer Halbach array, which comprises coaxially arranged rotor and stator assemblies, the rotor assembly is fixed to the shaft end of a rotating machine and rotates synchronously with the shaft end of the rotating machine, the coils of the annular coil assembly are symmetrically distributed according to a three-phase winding and are connected in Y shape, the magnet housing of the stator assembly is provided with magnets and counterweights, the magnets comprise inner and outer ring magnets, the double-layer concentric cylindrical Halbach array is formed by the inner and outer ring magnets, the inner and outer ring magnets are arranged in the coil assembly and are magnetized in a radially staggered manner, the counterweights balance the electromagnetic torque by gravity torque, and the relative rotation of the rotor and stator assemblies is ensured. The double-layer Halbach array is used to concentrate the magnetism of the magnets to the middle annular air gap area, the kinetic energy-electric energy conversion is realized by combining electromagnetic induction, the magnetic stabilization and voltage stabilization are realized by adjusting the arrangement angle of the magnets, and the relative movement of the magnets and the coils is realized without additional fixation of the magnets of the stator assembly by relying on the single pendulum structure of the counterweights.

The invention discloses an outer rotor motor assembly for a low-noise cross-flow fan, which comprises a volute, a butt-joint bearing arranged in the volute, a butt-joint seat arranged on the outer side of the butt-joint bearing, a bearing chamber arranged on the top of the butt-joint bearing and the butt-joint seat, an air guide assembly arranged outside the bearing chamber, a storage box arranged on the outer side of the volute, and a lubricant arranged in the storage box. A plurality of transmission channels are arranged in the volute and used for penetrating through the storage box and the butt joint seat, a plurality of butt joint holes are formed in the butt joint seat and used for conveying a lubricating agent, components in the bearing chamber can be oiled and lubricated, the jamming condition is reduced, and a margin monitoring module is arranged outside the storage box; compared with the prior art, the external rotor motor assembly has an automatic lubrication function, can significantly prolong the maintenance period, can timely warn internal wear by monitoring the allowance and flow velocity of a lubricant in real time, ensures uniform distribution of lubrication, and effectively improves the operation stability and reduces the noise by combining with a magnetic attraction stabilization technology.

Magnetically stabilized cardan shaft bearing system (60), comprising: a holder (70) with a bearing receiving zone (82) with an inner annular surface (84); an insulator (90) made of a flexible material, arranged in the bearing receiving zone (82), wherein the insulator (90) has an outer section (92) supported on the inner annular surface (84) and an inner section (94) connected to the outer section (92) via several web elements (96), wherein the inner section (94) includes an opening (98) with an annular surface section (100); a cardan shaft bearing (104) arranged in the bearing receiving zone (82) and supported by the insulator (90), wherein the cardan shaft bearing (104) is arranged in the opening (98) of the inner section (94), the cardan shaft bearing (104) comprising an outer race (106) supported by the annular surface section (100), an inner race (107), and a plurality of bearing elements (109) between the outer race (106) and the inner race (107), wherein the inner race (107) of the cardan shaft bearing (104) includes a passage (112) capable of receiving a cardan shaft (46) for a vehicle rotatably supported; and an electromagnet (120) which is mounted in the holder (70) and surrounds only a part of the cardan shaft bearing (104) and the insulator (90), wherein the electromagnet (120) is selectively activated to move the cardan shaft bearing (104) within the bearing receiving zone (82).

The utility model discloses a magnetic-attraction quick-release multifunctional clock assembly, which relates to the technical field of clocks and comprises a clock body and a magnetic stabilization assembly fixedly mounted on the clock body. The magnetic stabilization assembly comprises a shell plate fixedly arranged on the outer side of the clock body, a groove formed in the shell plate and a magnetic plate attached and fixed in the groove, the shell plate is made of copper, and the thickness of the magnetic plate is not smaller than the depth of the groove; the clock has the advantages that the shell plate made of copper is fixed on the clock body in advance, the groove in the shell plate is used as a space for placing the magnetic plate, and the shell plate counteracts a magnetic field emitted by the magnetic plate to a certain extent, so that the operation interference of the clock movement group can be reduced; the soft cushion layer covering the groove and the magnetic plate is arranged, so that wear-resistant protection can be provided for the magnetic plate; and the arranged convex plate can increase the hanging function of the clock body.

The application provides a multi-stage rotating flow-magnetic stabilization heterogeneous Fenton oxidation sewage treatment device and a sewage treatment method, and relates to the technical field of sewage treatment. The device comprises a premixing rotating flow zone, a main reaction zone and a water outlet separation zone which are sequentially connected in sequence from bottom to top. A rotating cutting type micro-nano bubble aeration device is arranged at the bottom of the premixing rotating flow zone to generate micro-nano bubbles and form initial rotating flow. Rotating flow devices and magnetic stabilization grids are alternately arranged in the main reaction zone. An external magnetic field generator is arranged on the outer wall of the reaction device at the position corresponding to the magnetic stabilization grid. A slanting plate sedimentation unit and a water outlet weir are arranged in the water outlet separation zone to realize in-situ separation of the catalyst. The application can strengthen gas-liquid-solid three-phase mass transfer, improve the utilization rate of hydrogen peroxide, reduce catalyst loss and sludge production, and is suitable for advanced treatment of difficult-to-degrade organic sewage such as landfill leachate.

The magnetic core for the inductor relates to the technical field of magnetic cores and comprises a magnetic core lower yoke and a magnetic core upper yoke, a lower sleeve hole is formed in the center of the magnetic core lower yoke, a left wrapping plate is fixed at the left end of the magnetic core lower yoke, and a right wrapping plate is fixed at the right end of the magnetic core lower yoke. A magnetic core upper yoke is installed between the upper end of the left wrapping plate and the upper end of the right wrapping plate, an upper sleeve hole is formed in the center of the magnetic core upper yoke, a magnetic core column is arranged between the upper sleeve hole and the lower sleeve hole in a sleeved mode, the center of the magnetic core lower yoke, the center of the lower sleeve hole and the center of the magnetic core upper yoke are located on the same axis, and notches are formed in the front side and the rear side of the magnetic core lower yoke. The left wrapping plate and the right wrapping plate are in bilateral symmetry about the center line of the magnetic core lower yoke, and first screw holes are formed in the front portion and the rear portion of the left wrapping plate and the front portion and the rear portion of the right wrapping plate respectively. The coil can be conveniently and stably wound on the magnetic core column, the outer side extrusion and the top pressing of the coil are safe and stable, the coil is not prone to loosing, electromagnetism is kept stable, dismounting and mounting are convenient, and the coil is more flexible, safer and more reliable.

The invention provides a magnetic assembly balance system with stable mobility performance, which relates to the technical field of magnetic assembly and comprises a magnetic stabilization platform, a magnetic assembly unit, an acceleration response module and a connection module. The magnetic stabilization platform is composed of a magnetic conduction platform and a surface texture layer and is used for bearing the magnetic assembly units; the magnetic force assembling unit is a systematic execution unit capable of being spliced and comprises magnetic single bodies of three geometric configurations, specifically, an A-type square magnetic sheet, a B-type isosceles triangle magnetic sheet and a C-type regular triangle magnetic sheet. The acceleration response module is used for controlling the stability of the system and specifically comprises a sensor and a magnetic force compensation unit; a dynamic magnetic force regulation and control mechanism is adopted, by means of closed-loop regulation of the acceleration response module and the magnetic force compensation unit, the magnetic attraction force can be adjusted in real time according to dynamic parameters such as the inclination angle and the acceleration, the problem of insufficient stability caused by non-adjustable magnetic force of a traditional system is solved, and it is ensured that no slippage or overturning risk exists in complex scenes such as inclination and acceleration.

In a spectroscopic analysis system, a broadband light source emits infra-red, visible or ultra-violet light which is transmitted through a fluid in a sample cell to a broadband detector. Changes in transmitted intensity are related to measurand in the fluid. A rotatable optical modulator or chopper, driven by an electric motor and located in the optical path, has light-transmissive optical elements, and non-transmissive regions. A non-contact magnetic field generator applies a magnetic field to the modulator or chopper to damp or brake the rotation. In an aspect, the modulator is an electrically conductive, non-ferromagnetic wheel, disc or cylinder in which eddy currents are induced. Optical elements may be apertures, filters, cuvettes, etc. A Hall effect sensor, rotary encoder, optical switch, etc. may determine angular speed or position of the modulator, and a PID controller may be used to maintain rotation speed at a setpoint by modulating an electromagnetic field generator.

According to the technical scheme, the stable magnetism type gradient compensation Halbach magnet ring comprises a basic 3D Halbach magnet ring body, the magnet ring body is of a cylindrical three-dimensional structure and is formed by arranging a plurality of fan-shaped magnetic tiles according to a Halbach array rule, the magnetization direction of the magnetic tiles follows a Halbach array angle formula, and the magnetic tiles are used for achieving magnetism gathering and self-shielding on an xoy plane; the Z-axis two-end layered compensation magnetic tiles are arranged on the end faces of the Z-axis two ends of the basic magnetic ring body, the compensation magnetic tiles are of a multi-layer structure, the number of layers is at least two, the thickness of each layer is gradually increased outwards along the Z axis, and the compensation magnetic tiles are used for gradient compensation of magnetic field attenuation in the Z-axis direction; the magnetic ring assembly is sleeved with the layered thickened shielding iron shell, the thickness of an iron shell body is a standard value, and the thickness of the iron shell corresponding to the compensation areas at the two ends of the Z axis is thickened in a layered mode and is matched with the thickness gradient of the compensation magnetic tile. By adopting the collaborative design of the layered compensation magnetic tiles and the adaptive shielding iron shell, the problem of non-uniform magnetic field of the 3D Halbach magnetic ring in the Z-axis direction is effectively solved.

The utility model relates to the technical field of magnetically stabilized beds, and discloses a novel magnetically stabilized bed reactor, which comprises a reactor main body, a cylinder body, a conical sealing head, a liquid outlet pipe and a liquid inlet pipe, an adjusting mechanism is arranged on the cylinder body, an auxiliary mechanism is arranged on the conical sealing head, the adjusting mechanism comprises an upper flange plate, and a lower flange plate is arranged on the upper flange plate. The upper flange plate is rotationally connected to the outer wall of the side face of the barrel through a bearing, the outer wall of the side face of the barrel is rotationally connected with a lower flange plate through a bearing, the outer wall of the side face of the barrel is fixedly connected with a support, and the inner wall of the front side of the upper flange plate is slidably connected with an adjusting plate. According to the utility model, by arranging the adjusting plate, the upper flange plate and other structures, the reactor connecting cylinder is conveniently disassembled and assembled, so that personnel can conveniently open internal components of the magnetically stabilized bed reactor to check and maintain in time, and the problems that a traditional shell is integrated, the personnel cannot conveniently check the interior when the internal components go wrong, and the working efficiency is low are solved. Therefore, the maintenance is more complicated.

The invention relates to the technical field of lead-zinc ore extraction metallurgy, and particularly discloses a method for extracting high-grade high-quality lead-zinc ore from lead-zinc tailings by adopting gravity concentration equipment. The composition comprises a bio-based zwitterionic polymer solution serving as a heavy medium carrier, and the bio-based zwitterionic polymer solution is formed by compounding a biodegradable anionic polysaccharide derivative and a quaternized vegetable gum cationic modifier; the product is dehydrated concentrate with the total grade of lead and zinc being greater than or equal to 65%. The preparation method comprises the following steps: pre-treating raw materials and screening target particle swarms; multi-stage reselection and enrichment are combined with gradient acid leaching for impurity removal; recycling the micro-fine particles in different paths; and carrying out heavy medium final selection upgrading and closed-loop water circulation. The composition disclosed by the invention forms a stable suspension system through the synergistic effect of zwitterions, and adapts to the rheological property of the magnetically-stabilized heavy fluid; according to the preparation method, precise regulation and control of the flow velocity gradient of the ore pulp are achieved through vibration shaking table gradient partition, pulsed magnetic field dissociation and rotational flow-centrifugal path division treatment, and the preparation method has the advantages of being good in environment compatibility, high in granularity adaptability and controllable in resource consumption.

Magnetically Stabilized Dental Implant with Adjustable Abutment Alignment