202 results about "Magnet device" patented technology

The invention discloses a wind tower body derusting magnetic adsorption wall-climbing robot, which belongs to the technical field of robots and comprises a moving trolley, an adsorption mechanism, a polishing mechanism and a walking motor. The moving trolley comprises a chassis frame and four Mecanum wheels installed on the chassis frame. The adsorption mechanism comprises two adsorption assemblies which are symmetrically arranged front and back. Each adsorption assembly comprises a magnet device and a gap adjusting device used for driving the magnet device to move up and down. An ultrasonic sensor used for detecting the size of a gap between the magnet device and the wall face of the wind tower body is arranged on the bottom face of the magnet device. The grinding mechanism comprises a base, a sliding table, a supporting arm, a grinding lifting device, a grinding rotating motor, a grinding disc and a camera. The grinding disc can move left and right and move up and down, and the rust removal efficiency is improved. The problems that in the wall-climbing process of an existing wind tower wall-climbing robot, due to the fact that the preset safety adsorption force is too large and the structure of the robot is poor, flexibility is poor, and operation efficiency is low are solved.

The invention discloses an internally-inserted water-cooled magnet device for a high-field hybrid magnet. The internally-inserted water-cooled magnet device comprises a container assembly and a magnet coil assembly arranged in the container assembly. The container assembly comprises an upper barrel assembly, a container end cover, a hydraulic machine assembly, a center pipe assembly, an inner supporting assembly, a middle barrel assembly, a lower barrel assembly and an electric connecting assembly. The hydraulic machine assembly comprises a cylinder body, a piston, a check ring, a pressure equalizing pad, a first force transmission check ring, a first anti-rotation pin, a second force transmission check ring, a second anti-rotation pin, a first force transmission column and a second force transmission column. The axial force application device has the advantages that axial force application can be performed on the magnet coil assembly, the pressing force on the magnet coil assembly is improved, and the problems of tension fracture and damage caused by coil stress overrun due to overlarge radial expansion electromagnetic force of a magnet coil bit piece and an insulating piece are solved.

The invention discloses a high-field water-cooling magnet device which comprises a container assembly and a magnet coil assembly, and the magnet coil assembly is located in the container assembly and communicated with the container assembly. The container assembly comprises a hydraulic machine assembly, and the hydraulic machine assembly comprises a cylinder body, a piston, a check ring, a pressure equalizing pad, a first force transmission check ring, a first anti-rotation pin, a second force transmission check ring, a second anti-rotation pin, a first force transmission column and a second force transmission column. The axial force application device has the advantages that axial force application can be performed on the magnet coil assembly, the pressing force on the magnet coil assembly is improved, and the problems of tension fracture and damage caused by coil stress overrun due to overlarge radial expansion electromagnetic force of a magnet coil bit piece and an insulating piece are solved.

The invention provides a magnet device and a magnetron sputtering cathode, and relates to the technical field of magnetron sputtering. At least one first magnet is additionally arranged on the surface of a partial area in a curve area of an inner magnet and / or an outer magnet or replaced by at least one second magnet with higher residual magnetic field intensity, or at least one third magnet is additionally arranged between the curve area of the inner magnet and the curve area of the outer magnet; the horizontal magnetic field distribution of the curve area is alternated by strong and weak, so that the magnetic field distribution of the curve area is effectively improved, the diagonal effect is weakened or eliminated, the utilization rate of the target material is remarkably improved, the production cost is reduced, the implementation mode is more flexible, and the cost is lower.

The composite force field magnetic separation column comprises a separation cone frustum, the separation cone frustum is of a hollow structure, and a magnet device and a rotating shaft are arranged in the separation cone frustum; the magnet device is cylindrical and is arranged between the sorting cone frustum and the rotating shaft, and the rotating shaft is movably connected with the magnet device; a sorting screw is wound on the outer side of the sorting cone frustum, a blade of the sorting screw is fixedly connected with the rotating shaft, and the sorting screw can rotate relative to the sorting cone frustum; the bottom of the rotating shaft is connected with the transmission device and used for driving the sorting screw to rotate. The bottom of the sorting spiral is close to the feeding belt, and materials on the feeding belt are conveyed upwards through rotation of the sorting spiral. And an air blowing device is arranged on one side of the separation screw, so that non-magnetic materials or weakly magnetic materials on the separation cone frustum or the separation screw are blown away from the separation screw, fall to a tailing falling area and are taken away from a working area through a tailing belt, and magnetic concentrate products at the uppermost end of the separation screw are conveyed to a concentrate product area through a concentrate belt.

The utility model discloses a magnetic attraction connector. A male end component, a female end component and a magnetic attraction device are arranged. The magnet device is arranged in the male end component and the female end component. When the male end and the female end terminals are close to each other, the male end component and the female end component can be directly adsorbed together. After the probes on the terminals are in contact, they play a role of conductive connection. The male end has three probes, and the female end has a probe and a circular contact piece. After the male and female terminals are adsorbed, misalignment can be prevented, and correct positive and negative poles can be contacted. The terminals of the male end component and the female end component can be respectively installed on a circuit board through welding wires or directly connected, which acts on the circuit connection of the two components, effectively realizing the power-on of the magnetic attraction connection. The use and operation are simple, and the stability of the male end component and the female end component after being connected is good.

The utility model discloses a magnetic crystal pulling permanent magnet device capable of ascending and descending, and belongs to the technical field of single crystal furnace accessories. A base; the magnet yoke is located above the base, the magnet yoke is provided with an opening, and the magnet yoke is provided with two mounting surfaces which are oppositely arranged; the two sets of permanent magnets are respectively fixed on the two mounting surfaces, a gap is formed between the two sets of permanent magnets, the opposite end surfaces of the two sets of permanent magnets are arranged to be concave surfaces, and the polarities of the opposite end surfaces of the two sets of permanent magnets are opposite; the lifting assembly is connected with the base and the magnet yoke, and the lifting assembly can drive the magnet yoke to move in the direction close to or away from the base; when in use, the two sets of permanent magnets on the magnet yoke are respectively positioned on two sides of the single crystal furnace, the concave surfaces of the two sets of permanent magnets can enable a magnetic field penetrating through the single crystal furnace to be distributed more uniformly, and the height of the magnet yoke can be conveniently adjusted through the lifting component, so that the magnetic field intensity is adjusted, and the crystal pulling quality of crystals is effectively improved.

Linear control system for flight simulation and other applications. The system employs a moveable handle and handle shaft configured to receive manual user input for linear in-and-out motion over at least a range of several inches and rotation back and forth about the handle-shaft axis. Various rolling contact mechanisms employing a compliant material of appropriate durometer are used to manage friction. Linear motion is detected using a motion-reducing Hall-effect sensor and magnet device, while rotary motion is detected using a different rotary sensor. The device has at least one onboard processor, which can receive, process, and output various sensor measurements to an outside computerized device (such as a computer running a flight simulation program). The onboard processor can also receive actuator commands from the outside computerized device and use them to control onboard linear and rotary actuators to provide haptic feedback to the user.

A drive device (1) is proposed, comprising a fluid-actuated linear drive (2) with a drive housing (5) and a driven element (4) that can be driven to perform a linear stroke movement (6). The linear drive (2) is equipped with a speed detection device (3) that can detect the stroke speed of the driven element (4) and which includes a permanent magnet device (46) and a magnetic field sensor device (47) fixed to the drive housing (5), as well as an electrically conductive induction section (38) designed as part of the driven element (4).During a lifting movement (6) of the output member (4), a permanent magnetic field of the permanent magnet device (46) generates eddy currents in the induction section (38), from which eddy current magnetic fields result that interact with the permanent magnetic field, so that the magnetic field sensor device (47) outputs an electrical sensor signal which an evaluation electronics (57) can convert into lifting speed information.

The invention discloses a novel water-cooled magnet coil end electromagnetic force control structure which comprises a coil A, a coil B, a coil C, a coil D, a coil E and a coil F. The coil A, the coil B, the coil C, the coil D, the coil E and the coil F are sequentially connected in series in a sleeving mode in the radial direction. The F coil comprises an F magnet coil, an F coil end plate, an F fixing rod, an F transition electric connecting ring, an F lower insulation supporting anti-rotation cylinder and a reinforcing rod. The coil assembly has the advantages that through the arrangement of the sectional insulating cylinder assembly, the insulating effect is achieved, the coil A is positioned instead of a fixing rod, the stability of the two ends of the F magnet coil is enhanced, the problems of movement and dislocation near an end plate during operation of the F coil are solved, and the service life of the F coil is prolonged. And the F transition electric connecting ring is prevented from being damaged under the condition of sudden power failure during operation of the mixed interpolation water-cooling magnet device.

The invention discloses a rotating wheel device for realizing information interaction through Hall induction in the technical field of Hall induction, comprising a rotating disk, a magnet device and a Hall probe device, wherein the magnet device is fixedly connected to the top of the rotating disk, and the Hall probe device is fixedly connected to the bottom of the rotating disk, and the rotating disk comprises a first quadrant, a second quadrant, a third quadrant, a fourth quadrant, a fifth quadrant and a sixth quadrant, and is distributed in a clockwise ring shape. The rotating wheel device for realizing information interaction through Hall induction divides the rotating disk into six quadrants, installs a Hall probe device under the rotating disk, and installs a magnet device on the six quadrants at the same time, and through the Hall induction principle, enables the Hall probe to read the magnetism of the magnet device arranged according to a fixed rule on the rotating disk and send a signal, and after being processed by a single-chip computer program, accurately identifies the rotation information of the rotating disk, has a simple structure, does not require mechanical contact, has a small loss rate, a long service life, and saves costs.

The invention belongs to the technical field of synchrotron radiation light sources, and discloses a serial impact magnet device which comprises a shell assembly, a positive pulse electrode, a negative pulse electrode and a strip magnet. The shell assembly comprises a shell body and a side end cover which are detachably connected, and a magnetic core space is formed between the shell body and the side end cover. The positive pulse electrodes extend into the magnetic core space and are arranged at intervals. The negative pulse electrodes extend into the magnetic core space and are arranged opposite to the positive pulse electrodes, and the multiple negative pulse electrodes are arranged at intervals. The strip magnets are arranged in the magnetic core space, the strip magnets are connected between every two adjacent positive pulse electrodes, the strip magnets are connected between every two adjacent negative pulse electrodes, and the two strip magnets are spaced from each other to form a magnetic field space. The electron beam current can be transmitted in the magnetic field space. The tandem impact magnet device can improve the compact degree and the vacuum degree, facilitates the assembly of an internal structure, and can meet the injection requirements of electron beams of a synchrotron radiation light source.

The invention discloses a folding screen and electronic equipment, and relates to the technical field of electronics, the folding screen comprises two screen bodies, and the two screen bodies can rotate relative to each other to enable the folding screen to be in a cover opening state or a cover closing state; a first magnet device is installed in one screen body, a second magnet device is installed in the other screen body, the first magnet device comprises a first magnet and a reset structure, and the first magnet is rotatably installed in the corresponding screen body; the second magnet device comprises a second magnet; under the condition that the folding screen is in a cover closing state, the second magnet and the first magnet attract each other, so that the magnetic pole distribution direction of the first magnet is changed from the first direction to the second direction; when the folding screen is in the uncovering state, the reset structure drives the first magnet to rotate, so that the magnetic pole distribution direction of the first magnet is changed from the second direction to the first direction, and the magnetic force of the screen body surface where the first magnet is located is reduced. The risk that the screen is extruded by ferromagnetic foreign matter can be eliminated, and color bright spots or black balls are prevented from appearing on the screen.

The invention belongs to the technical field of hydrogen production, and particularly relates to a hydrogen production electrode automatic transfer clamp which comprises a rack, a flange plate is fixedly connected to the top of the rack, sliding mechanisms are installed on the four sides of the outer wall of the rack, and suction clamping mechanisms are connected to the sliding mechanisms and used for sucking and clamping electrodes. The six electric permanent magnetic devices are uniformly mounted at the bottom of the rack and are used for adsorbing the electrodes so as to improve the stability of the electrodes; and the eight leveling mechanisms are uniformly distributed on the upper side of the rack. Through cooperation of the sucking and clamping mechanism and the electric permanent magnetic device, the problems of separate grabbing of stacked electrodes and stable grabbing of a single electrode are successfully solved, automation of hydrogen production electrode transfer is achieved, traditional manual operation is replaced, instability of manual operation is avoided, and the production efficiency is remarkably improved.

The invention relates to the technical field of superconducting cables, and aims to provide a magnesium boride superconducting cable for a magnet device and a preparation method of the magnesium boride superconducting cable for the magnet device. Two magnesium boride superconducting single wires and an annealed copper wire are twisted together to form a first-stage cable, a second-stage cable is formed by compositely twisting four first-stage cables, and a third-stage cable is formed by compositely twisting four second-stage cables; and after the three-stage cable is twisted, a layer of 316L stainless steel strip is overlapped and lapped to reinforce protection so as to enhance the electromagnetic force resistance and stable operation capability of the cable, and a layer of high-temperature-resistant glass tape is overlapped and lapped on the outermost layer to serve as an insulating layer. The magnesium boride superconducting cable produced by adopting the structure and the method is used for winding a magnet coil, the cable is straight and free of undesirable phenomena such as bending and snakelike in the winding process, the wound coil is poured with epoxy resin, the voltage endurance capacity of the coil after pouring and curing reaches 15 kv or above, the coil is in a superconducting state at the temperature of 39 K, the high critical current density is achieved, and the coil can be used for manufacturing the magnet coil. And a relatively high magnetic field is generated, and the application prospect is wide.

The present invention discloses a method for preparing high-performance composite magnetic powder, which belongs to the field of magnetic material technology. The preparation method comprises: firstly preparing Sm2Fe 17 The invention relates to a method for preparing a magnetic particle and nitriding it to obtain a samarium iron nitrogen particle magnet; and during the high-energy ball milling process of metal Sm and metal Co, a mixture of the samarium iron nitrogen particle magnet and gasoline is sprayed into a mixed powder of metal Sm and metal Co in a spray manner, so that Sm and Co react chemically to achieve the synthesis of a hard magnetic phase Sm-Co phase, simplifying the preparation process, eliminating the smelting process, and avoiding the volatilization of Sm; finally, the magnetic mixed powder is subjected to a primary and secondary laser fast sintering nitriding and tempering heat treatment in a nitrogen atmosphere to finally obtain a high-performance composite magnetic powder. The method of the present invention has a simple process, is easy to form, reduces costs, and is conducive to the application of high-performance magnets in more permanent magnet devices.

The utility model relates to a dot matrix scanning type focused ultrasound beauty instrument which comprises a shell, a main control board, a swing arm, a magnet device and a focused ultrasound transducer installed at the follow-up end of the swing arm are arranged in the shell. A rotary mounting part is arranged in the middle of the swinging arm, one side of the rotary mounting part is a driving end, and the other side is a follow-up end; the driving end is provided with a coil claw, and a driving coil is installed in the coil claw. The follow-up end extends outwards to form a mounting seat, and a focused ultrasonic transducer is mounted on the mounting seat; the magnet device comprises a base and a shielding cover; a bottom driving magnet is fixed on the inner side of the base, a top driving magnet is fixed on the inner side of the shielding cover, the bottom driving magnet and the top driving magnet are arranged at an interval, and a part of the driving coil is located in a channel between the bottom driving magnet and the top driving magnet; and the rotary mounting part of the swinging arm is rotationally connected with the base of the magnet device. According to the utility model, pulse output and accurate positioning scanning of focused ultrasound are realized, and the use effect is improved.

The invention relates to a device (100) comprising a magnetorheological transmission device (1) having two rotating parts (2, 3) which can be moved relative to each other. A working gap (4) having a magnetorheological medium (5) is formed between the rotating parts (2, 3). An electrical coil arrangement (6) is used to generate a controllable magnetic field in the working gap (4). The additional brake (7) is used to brake the rotational ability of the rotating members (2, 3) when the magnetic field of the coil mechanism (6) disappears. The additional brake (7) comprises a magnet device (17) extending in the circumferential direction of the working gap (4), which magnet device comprises at least one magnet unit (27) having at least one permanent magnet (37) extending only over a part of the circumference.

The present disclosure relates to bitter plate-based magnet devices and a reactor apparatus using same. The reactor apparatus may comprise the magnet devices. The magnet device may comprise: an upper lead plate; a plurality of conductor plates; a plurality of insulator plates; and a lower lead plate. The magnet device can be formed to have a central hole. The conductor plates and the insulator plates can be stacked such that each insulator plate is disposed between two conductor plates. Each conductor plate can be formed to have a radial slot, and each insulator plate can be formed to have a radial slot that is wider in width in the circumferential direction than the radial slot of the conductor plate. According to the present disclosure, a bitter plate-based reactor apparatus is implemented such that high current density can be achieved and a miniaturized reactor can be fabricated.

The present application relates to the technical field of induction heating, and discloses a magnet device for induction heating. The device comprises: coils, wherein the number of the coils is at least four and is an even number, the at least four coils are evenly divided into two groups, and the two groups of coils are symmetrically arranged around an axis; and a driving unit arranged on the symmetry axis of the coils, the driving unit being used for driving a metal material to be heated to rotate. According to the present application, an even number of coils are combined to form an annular coil device, so that a larger and more uniform magnetic field can be generated in the center, facilitating the improvement of the eddy current heating effect.

The invention relates to a magnet arrangement for influencing a beam of charged particles, which comprises at least 2 n alternating magnetic poles, with n ≥ 2. Each magnetic pole is formed from at least one permanent magnet, and a yoke with a coil is arranged for each pole formed from at least one permanent magnet. The invention is characterized in that at least one gap is formed per pole, delimited by two permanent magnet surfaces, and wherein at least one plate made of a soft magnetic material and a means for motorized translation of the plate are arranged for each pole, such that the at least one plate can be moved in and out of the at least one gap using the translation means. The fields provided by the magnet arrangement according to the invention can be varied by up to ± 20%, based on the operating point.

The application provides a magnet device and a magnetron sputtering cathode with reduced edge magnetic leakage, and relates to the technical field of magnetron sputtering. By adjusting the total residual magnetism ratio of the inner magnet and the outer magnet, the magnetic field distribution is improved, the edge magnetic leakage is reduced, the target material utilization is improved, the chamber pollution and the equipment maintenance frequency are reduced, and finally the use cost is reduced.

The utility model discloses a magnet device for positioning a coating workpiece, which comprises a magnetic attraction piece and a protective shell sleeved on the magnetic attraction piece, the protective shell comprises an upper shell and a lower shell which are spliced with each other, and a first part and a second part which are overlapped with each other are arranged at opposite ends of the upper shell and the lower shell. The first part and the second part are connected through the limiting assembly, the protective shell is divided into an upper shell body and a lower shell body which are spliced in order to enable the magnetic attraction piece and the protective shell to be separated more conveniently in a non-use scene, and the opposite ends of the upper shell body and the lower shell body are connected through the first part and the second part in an overlapped mode. And the first part and the second part are connected through the limiting assembly, so that when an operator needs to take out the magnetic attraction piece in the protective shell, the magnetic attraction piece is exposed by separating the first part from the second part, and the operator can conveniently separate the magnetic attraction piece in the protective shell.

The invention relates to a method for producing value documents (1), such as banknotes, checks, credit cards or other payment cards, identity cards or the like. A substrate body (2) having a front side (3) and a rear side (4) is provided, and a printing layer (6) is printed onto the front side (3) of the substrate body (2) using a first ink (5) and a second ink (15). The magnetically orientable pigment is orientated using a magnet device (11), and then the magnetically orientable pigment is fixed by a curing matrix in the orientated state using a curing device (13). At least the first ink (5) is printed in a digital printing process by means of a first print head (7) which releases the first ink (5) in a dot grid in the form of drops such that the printed layer (6) forms a digital printed layer at least with respect to the first ink (5), the first ink (5) and the second ink (15) having two different colors, and the magnetically orientable pigments each comprise a multi-layer composite structure comprising at least a magnetic layer.

The invention relates to a magnet device (11) for a magnetic resonance apparatus (10), the magnet device (11) comprising: a superconducting magnet (12); a discharge system (35); a switch (37) which is designed to interrupt a closed circuit in the superconducting magnet (12) and to transfer electrical energy which has accumulated in the superconducting magnet (12) to the discharge system (35); wherein the discharge system (35) comprises a supercapacitor (30) which is designed to buffer the electrical energy transport from the superconducting magnet (12) to the discharge element in the discharge system (35).

An electromagnet device includes a coil, a pulley, an iron core, a yoke, a movable iron piece, an auxiliary yoke, and a permanent magnet. The coil is wound around the pulley. The iron core is located inside the pulley. The yoke includes a base portion and an extension portion. The base portion extends in a direction intersecting an axial direction of the iron core and is fixed to one end of the iron core. The extension portion is connected to the base portion and arranged laterally relative to the coil. The movable iron piece is rotatably supported by the extension portion of the yoke. The auxiliary yoke is connected to an outer side of the base portion of the yoke. The permanent magnet is positioned on an extension line of the axis of the iron core and is located between the base portion of the yoke and the auxiliary yoke.

The invention relates to the technical field of high-pressure valves, in particular to a low-power-consumption bistable electromagnetic actuator for a valve, which comprises a casing main body for accommodating other parts of the electromagnetic actuator, introducing a control wire and allowing an output component to penetrate out; the stator assembly comprises annular coil devices which are symmetrically arranged in the axial direction and generate armature magnetic flux to control an output component to move transversely, and control wiring to control the time sequence of the armature magnetic flux generated by the coil devices. The middle iron core assembly comprises a permanent magnet device capable of generating permanent magnetic flux, and the permanent magnet device is located in the symmetrical middle of the symmetrically-arranged annular coil device and used for conducting electromagnetic fixing on the output component after transverse movement is finished. The armature assembly is used for driving the output component to retract into or penetrate out of the machine shell body under the action of armature magnetic flux to execute valve switch control action, and the armature assembly is arranged in the stator assembly and penetrates through the middle iron core assembly. According to the invention, a novel composite magnetic circuit under the dual action of a constant magnetic source and an electromagnetic field is constructed, so that bidirectional active switching between steady-state positions is realized.

The present invention relates to the technical field of surface strengthening of soft base materials, in particular to a high-density plasma uniform nitriding device and working method for the surface of soft base materials. The device includes 4 arc sources respectively arranged on the left side, right side, front side and rear side in the chamber. A permanent magnet device is arranged behind each of the arc sources. Each arc source is electrically connected to the negative pole of an arc source power supply, and the positive pole of the arc source power supply is grounded; it also includes 4 auxiliary anodes respectively arranged at the four corners in the chamber; an electromagnetic coil is arranged behind each auxiliary anode; each auxiliary anode is electrically connected to the positive pole of an auxiliary anode power supply through an adjustable resistor, and the negative pole of the auxiliary anode power supply is grounded.

The present invention provides a permanent magnetic circuit device. The permanent magnetic circuit device comprises a first magnet assembly, the first magnet assembly comprises a plurality of first permanent magnets and a plurality of first soft magnets, the plurality of first permanent magnets and the plurality of first soft magnets are connected to form a ring structure, and the plurality of first soft magnets are symmetrically arranged relative to the center of the ring structure. The present invention solves the problems of large amount of permanent magnets, high cost and unreasonable partitioning in the permanent magnetic device in the prior art.

A closure arrangement (1) comprises a first closure part (2), which has a first body (20), an engagement device (21), which is arranged on the first body (20), and a first magnet device (22), and also comprises a second closure part (3), which has a second body (30), a locking element (33) and a second magnet device (32). The first closure part (2) and the second closure part (3) can be placed against one another for the purpose of closing the closure arrangement (1) and, in a closed position, are held against one another by the locking element (33) engaging with the engagement device (21). The second closure part (3) has a connecting element (31), which is movably arranged on the second body (30) and on which the locking element (33) is arranged, wherein the connecting element (31) has at least one bearing portion (330), which is mounted on the second body (30) such that, when the first closure part (2) and the second closure part (3) are placed against one another for the purpose of closing the closure arrangement (1), the connecting element (31) can be moved on the second body (30), and the connecting element (31) can additionally be pivoted relative to the second body (30) in order to disengage the locking element (33) from the engagement device (21) for the purpose of opening the closure arrangement (1).