20results about How to "Strong magnetic force" patented technology

The invention provides an optical anti-shake assembly and a long-focus camera module, the optical anti-shake assembly is suitable for driving a photosensitive assembly of the camera module to move, the optical anti-shake assembly comprises a base and a support, and the support is fixed on the base; the chip carrier is movably arranged on the base and is suitable for driving the chip carrier to move relative to the base and the bracket; the driving assembly is configured to drive a chip carrier to move in the horizontal direction, the driving assembly comprises at least one first driving mechanism and at least one second driving mechanism, the first driving mechanism is arranged between the chip carrier and the support, and the second driving mechanism is arranged between the chip carrier and the support. The driving chip carrier moves along a first horizontal direction relative to the bracket; the second driving mechanism is arranged between the chip carrier and the base and drives the chip carrier to move relative to the support in the second horizontal direction.

The invention discloses a special-shaped magnetic tile which comprises a magnetic tile body, the magnetic tile body is provided with five magnets and is composed of three groups of different magnetic tiles, the back of the magnetic tile body is of an arc structure, and the bottom of the magnetic tile body is of a horizontal structure. The outer sides of a group of same magnetic blocks on the left side and the right side of the magnetic tile body structure are ground into fillets with the same radius. The special-shaped magnetic shoe has the advantages of being large in magnetic force, small in weight and small in size, compared with an existing magnetic shoe combination, the special-shaped magnetic shoe has the higher magnetic mass ratio, the heavy-load operation capacity of a vertical face walking robot is greatly improved, and high economic benefits and safety are achieved.

The invention provides polycrystalline silicon wafer magnetic grinding equipment and a polycrystalline silicon wafer magnetic grinding method, and relates to the technical field of polycrystalline silicon wafer processing. According to the polycrystalline silicon wafer magnetic grinding equipment and method, by designing a storage box, an electromagnetic relay, a screen frame and a plugging assembly, when a magnetic needle needs to be fished, a permanent magnet disc and a servo motor can be started again, the magnetic force of the permanent magnet disc is gradually reduced, and meanwhile the magnetic force of the electromagnetic relay is increased; the magnetic needles are gradually collected into the screen frame through the connecting pipe in the rotating and rolling process, so that the magnetic needles are efficiently collected, meanwhile, the efficiency of cleaning the grinding barrel and the efficiency of the whole polycrystalline silicon wafer grinding operation are improved, next-time grinding can be rapidly carried out after cleaning is finished, and the grinding efficiency is improved. And by designing an air pump, an annular circular pipe, a guide pipe and a one-way valve, the air pump can finally introduce external air into the grinding barrel through the annular circular pipe, the guide pipe, a storage box and a connecting pipe, so that the magnetic needle rolls more disorderly during rotation, and grinding is more sufficient.

The invention discloses a fireproof distribution box based on arc elimination, which comprises a cabinet body with a sealing door hinged to the front surface, a heat dissipation fan is mounted at the top of the cabinet body, and heat dissipation holes and ventilation openings matched with the heat dissipation fan for use are formed in the side surface of the cabinet body; a plurality of arc extinguishing switch assemblies are installed in the cabinet body through a supporting frame, arc extinguishing switches are assembled to be used for eliminating electric arcs generated when a circuit is overloaded, each arc extinguishing switch assembly comprises a shell, two junction poles are arranged in the shell, and contact rods are rotatably installed at the opposite ends of the two junction poles through conductive plates. A contact is arranged at the end of the feeler lever, an arc extinguishing grid piece is installed in the shell, a partition plate is fixed in the cabinet body, a sealing block is installed on the partition plate in a threaded sealing mode, the partition plate divides the bottom of the cabinet body into a material storage cavity, cooling and heat dissipation can be conducted on the interior of the cabinet body through a heat dissipation fan, and the problem that the temperature is too high is avoided; the arc generation probability is reduced.

The invention belongs to the field of crawler belt core gold production, and provides a feeding device for crawler belt core gold production, which comprises a workbench, the upper end face of the workbench is fixedly connected with an inclined guide plate, the upper end face of the workbench is connected with a positioning groove, the positioning groove is arranged on one side of the guide plate, a plurality of guide holes are arranged on the positioning groove, and the guide holes are communicated with the guide plate. A thrust assembly is arranged on the side, away from the positioning groove, of the material guide plate, the thrust assembly can be fixed to the crawler belt core metal in a magnetic attraction mode and can push the crawler belt core metal to move in the direction of the positioning groove, and a guide assembly is arranged between the material guide plate and the positioning groove. According to the invention, the electric telescopic sleeve pushes the positioning seat to apply pressure to all the track core metals in a vibrating manner, so that the two ends of each track core metal are released from abutting against the inner walls of the positioning grooves; and meanwhile, an air pump is started to induce air into the lifting seat, and particles between the crawler belt core metals are brought out from the guide holes through wind power, so that all the crawler belt core metals are aligned and positioned.

This invention provides a peritoneal dialysis catheter repositioning device, comprising a catheter body, a sliding plug, a gas delivery device, and an external magnet. The catheter body is inserted into the peritoneal dialysis catheter. The sliding plug is slidably disposed within the catheter body. A plate-shaped internal magnet is embedded within the sliding plug; the magnetic poles of the internal magnet are perpendicular to the axis of the catheter body. The gas delivery device forces the sliding plug forward within the catheter body to the desired segment of the peritoneal dialysis catheter for adjustment. The external magnet attracts or repels the internal magnet, thereby adjusting the catheter segment to the set position. This invention can utilize the attractive force between the external magnet and the internal magnet to move a segment of the catheter outward, or utilize repulsive force to move the segment inward. Each adjustment is a localized adjustment of the peritoneal dialysis catheter's position, not only repositioning the catheter but also adjusting and repositioning the catheter's embedding shape within the peritoneal cavity.

The invention relates to the technical field of waste circuit board treatment, and discloses a waste circuit board cracking device which comprises a cracking furnace for carrying out cracking treatment on a waste circuit board, the carbon black collecting pool is used for collecting carbon black formed after the circuit board is cracked; the treatment unit is used for crushing the carbon black and screening out magnetic metal in the carbon black; the feeding end of the spiral conveyor is positioned in the carbon black collecting tank, and the discharging end of the spiral conveyor is connected with the processing unit; the treatment unit comprises a crushing assembly, and the crushing assembly comprises a shell, two sorting pipes rotationally connected with the shell, a first guide plate arranged on the shell, adjusting parts arranged in the sorting pipes and connected with the shell, and a plurality of permanent magnets connected with the adjusting parts; according to the device, through the arrangement of the two sorting pipes and the adjusting parts located in the sorting pipes, ferromagnetic materials exceeding the set weight can be sorted, and the ferromagnetic materials can fall into the set position.

This utility model provides a bonding device, relating to the field of screen bonding equipment technology, to optimize the structure of the bonding device to a certain extent and solve the technical problem that the alignment and parallelism of the upper and lower platforms are difficult to adjust during the screen bonding process. The bonding device provided by this utility model includes an upper platform mechanism and a lower platform mechanism; the upper platform mechanism includes an upper platform body, a first electromagnetic component, and a second electromagnetic component; the lower platform mechanism includes a lower platform body, a third electromagnetic component, and a fourth electromagnetic component; the first electromagnetic component is disposed within the platform body, the third electromagnetic component is disposed within the lower platform body, the second electromagnetic component is disposed around the upper platform body, and the fourth electromagnetic component is disposed around the lower platform body.

The present invention discloses a needle selection device for a circular weft jacquard machine, belonging to the technical field of jacquard machines, comprising a needle cylinder and a bottom ring 1 and a bottom ring 2 fixed to each other, the bottom ring 1 being fixedly mounted with a connecting seat, the connecting seat being mounted with a cam assembly, the needle cylinder being formed with a needle slot, the needle slot being mounted with knitting needles, intermediate needles and jacquard pieces from top to bottom, the knitting needles, intermediate needles and jacquard pieces being matched with each other, the bottom ring 2 being mounted with a needle selector and an auxiliary cam connected to the jacquard piece, the side wall of the needle slot being provided with and connected with a receiving slot, the receiving slot being connected with a resistance member for increasing the resistance of the jacquard piece, the resistance member being slidably connected with the receiving slot through a control member, the control member being used to change the corresponding area of ​​the resistance member and the jacquard piece. The needle selection device for a circular weft jacquard machine of the present invention ensures stability and accuracy during needle selection, while reducing the probability of accidental needle removal caused by vibration actuating the jacquard piece.

The invention discloses a magnetic suspension device, comprising a float, a magnetic base and a controller; the magnetic base comprises a chassis, two or three excitation coils, a permanent magnet array and a float position monitoring unit; the chassis is a mounting surface for the excitation coil and the permanent magnet array; the float position monitoring unit is arranged at the center point of the chassis for real-time detection of the current position of the float on the suspension plane and transmits it to the controller; the controller compares the current position value with the target position value, generates a position deviation signal, combines the force analysis and the calculation result of the electromagnetic force between the excitation coil and the float, changes the current magnitude and direction in all the excitation coils, so that the resultant force F of all the excitation coils on the float is P The float can be pulled to the target position value. The present invention breaks through the limitation that a set of two coils in pairs can only realize the control of the degree of freedom in a certain direction, can save space and materials, and is conducive to the miniaturization of the magnetic suspension device.

The utility model relates to the technical field of wireless sensor networks, and discloses a data collection device based on an industrial wireless sensor network, which comprises a box body, a side plate, a circuit board, a data receiver, a data processor, a data transmitter, an interface and the like, a thermistor is fixedly connected on the circuit board, an electromagnet is arranged inside the side wall of the box body, and the data receiver is connected with the thermistor. And a movable cavity is formed in the box body. When the temperature inside the data collection device is high, the temperature inside the data collection device can be sensed by the thermistor, the resistance value of the thermistor is reduced along with the rise of the temperature, the current of a circuit where the electromagnet is located is increased, the magnetic force of the electromagnet is increased, and at the moment, the electromagnet adsorbs the sliding plate; after the partition plate slides down, the through holes are opened, air convection is formed between the through holes in the two sides of the box body, and then heat dissipation in the box body is accelerated.

The utility model discloses a positioning tool for fastener production, belongs to the technical field of fastener processing, and solves the problem that inevitable troubles are caused to the operation of an operator in the step due to the fact that a slotted hole in the tool is relatively consistent with a screw head of a fastener in size. Comprising a fastener base, and a plurality of downwards-sunken circular grooves are formed in the top face of the fastener base. When a plurality of bolts need to be stored for tapping machining, only bolt heads of the bolts need to be placed into the circular groove through the necking groove, then the electromagnet assembly generates magnetic force to attract the bolt heads, and then only the screw rod part needs to be rotated, so that the bolts can be tapped. The bolt can be easily inserted into the limiting groove through the electromagnet assembly, in the machining process, the bolt can be kept in a stable state only by increasing the magnetic force of the electromagnet assembly, and after tapping machining is finished, the bolt can be taken out in a toppling mode only by powering off the electromagnet assembly.

The invention provides rhythm furniture, the driving mode is an electromagnetic driving mechanism, the rhythm furniture comprises a magnetomotive assembly and a coil assembly, one of the magnetomotive assembly and the coil assembly is connected with a movable frame, the relative position of the magnetomotive assembly and the coil assembly is kept unchanged, the other of the magnetomotive assembly and the coil assembly is connected with a fixed frame, the relative position of the fixed frame is kept unchanged, and the magnetomotive assembly comprises a permanent magnet. The permanent magnet comprises a channel hole formed in the horizontal direction, the coil assembly comprises a wire coil, the wire coil is formed by winding a wire and extending in the horizontal direction and used for generating a magnetic field with magnetic pole changes, the wire coil is partially arranged in the channel hole, and the wire coil comprises a first end and a second end which are opposite in the horizontal direction. The first end is located in the channel hole, and the second end is located outside the channel hole. The electromagnetic driving mechanism is used for replacing a motor and cam combined driving mode in the related technology, noise in the rhythm furniture running process is reduced, the structure that the permanent magnet is arranged outside the coil assembly is beneficial to miniaturization of the coil assembly, and heat generated by the coil assembly is reduced.

The utility model discloses a multi-section assembled magnet, which belongs to the field of magnets and comprises a plurality of mutually attracted magnet blocks, iron plates are arranged among the magnet blocks, the magnet blocks and the iron plates form a closed-circuit magnet group, and a fixing frame device for fixing the closed-circuit magnet group is arranged on the periphery of the closed-circuit magnet group. Compared with the prior art, the device has the advantages that the positions of the magnet blocks are fixed through the fixing frame device, and the fixing frame device is made of non-magnetic materials, so that assembly and disassembly of the fixing frame device are not affected by magnetic force; a closed-circuit magnet set (magnets directly attract iron at a small distance, the magnets with different polarities NS are alternately attracted and arranged, and at the moment, the magnetic scale is short, the magnetic resistance is small and the attraction force is maximum) is generated, the attraction force is increased, meanwhile, a stress point is provided for each magnet block, and when the magnet blocks are separated, force can be exerted on the iron plate, so that the magnetic blocks can be separated more quickly in a more labor-saving mode.

This invention relates to a transanal elliptical magnetic compression and unblocking component for treating rectal stenosis and its method of use, belonging to the field of medical devices. It includes an elliptical shell A, an elliptical shell B, a magnet component A, and a magnet component B. Magnet component A is embedded within elliptical shell A, and magnet component B is embedded within elliptical shell B. Under the action of magnet components A and B, elliptical shell A and elliptical shell B are attracted together, and their shapes are adapted to each other. This invention provides a transanal magnetic compression and unblocking device adaptable to different degrees and types of rectal stenosis. Through structural optimization, it improves the passageability and compression accuracy of the stenotic segment, solving the problem of rectal stenosis for patients and improving their quality of life.

Neodymium iron boron is inserted between vertical parallel iron cores, the aluminum-nickel-cobalt magnetic steel electromagnetic and permanent magnet disk is formed by stacking a plurality of small magnetic units in parallel, magnetizing, demagnetizing and electromagnetic stress application operations can be completed in the simple small units, and the small magnetic units with complete functions are standard magnetic modules. According to the magnetic module, polarity-reversible aluminum-nickel-cobalt magnetic steel and polarity-irreversible neodymium-iron-boron magnetic steel are inserted between two vertical parallel iron cores side by side up and down, and an electromagnetic coil is sleeved on the aluminum-nickel-cobalt magnetic steel to form a double-U-shaped ultra-short magnetic circuit, so that the magnetic loss of magnetic force transmitted along the way is reduced to the minimum, and the efficiency of a magnetic system is obviously improved.

A flexible strong magnetic neodymium-iron-boron magnet preparation process based on a polymer colloidal silica comprises the steps that a swelling agent is added into first silica gel with the volume of V1, solid second silica gel with the volume of V2 is formed after the first silica gel is expanded, and the relational expression that V2 is larger than or equal to 4 * V1 is met; adding neodymium iron boron powder into the second silica gel, and stirring to form third silica gel in a solid-liquid mixed state; performing granulation processing on third silica gel to form silica gel particles, heating the third silica gel twice to a first temperature during granulation processing, and discharging the swelling agent at the first temperature in sequence; the mold is filled with the silica gel particles, the silica gel particles stand and are cooled to a second temperature T2, a first pressing head above the mold in the vertical direction and a second pressing head with the punching end provided with a guide pin sequentially punch the silica gel particles, and the punched silica gel particles form a silica gel body; the silica gel body is sequentially vulcanized and magnetized at the third temperature to form a silica gel magnet, and in the silica gel magnet, the mass of neodymium iron boron is Qwt.% of the mass of the silica gel magnet.

The invention relates to the technical field of warm air blowers, and discloses a safe warm air blower for indoor temperature rise and a using method thereof.The safe warm air blower comprises a base, an outer barrel is fixedly arranged at the top of the base, a fuel oil inner barrel is arranged on the inner side of the outer barrel, and the two ends of the outer side of the fuel oil inner barrel are fixedly connected with connecting plates used for supporting the fuel oil inner barrel. The inner adjusting plate and the outer adjusting plate are matched with the elastic structure to adjust the opening degree of the corresponding air inlet according to the air pressure, and the inner adjusting plate is matched with the variable resistance mechanism to adjust the corresponding opening degree of the proportional valve, so that the flow of fuel sprayed by the fuel spray nozzle corresponds to the flow of air actually entering the fuel oil inner cylinder; carbon deposition and fuel waste caused by insufficient fuel combustion due to the fact that the air flow is smaller than a rated value or fluctuation is reduced are avoided, the distribution amount is increased by adjusting the magnetic force of the electromagnet when the corresponding air flow channel needs to be cooled in an accelerated mode, cooling is accelerated, and the use safety of the fan heater is guaranteed.

The utility model relates to a flywheel magnetic suspension magnetic force detection device which comprises an installation assembly, a flywheel is arranged in the installation assembly, a rotating shaft is fixedly arranged on the flywheel, and two ends of the rotating shaft respectively penetrate through the top and the bottom of the installation assembly and extend to the outside of the installation assembly. The weight of the flywheel is supported through the supporting piece, the pressure value of the pressure sensor is made to be zero, after a small amount of current is introduced into the magnetic suspension device, the magnetic suspension device generates magnetic force, so that magnetic attraction force is exerted on the flywheel, the supporting piece is slowly loosened, and the flywheel is prevented from being damaged. And at the moment, the pressure sensor can read the pressure value, then the current value is slowly increased, the magnetic force is increased until the pressure value is just 0, and the current value at the moment is recorded, so that the magnetic force detection is completed, and the problem that the rotating shaft on the flywheel is damaged in the subsequent use process of the flywheel is avoided.

The invention discloses an umbrella-shaped magnetic anchoring traction device for traction and exposure in magnetic anchoring laparoscopic surgery, comprising: an umbrella cap, the main body of which is cylindrical, a fixing ring is arranged at the center of the bottom end of the cylinder, and three pairs of rotating shaft bases arranged in a 120° array are arranged at the top edge, each pair of rotating shaft bases is composed of two sheets connected into an L shape, and each sheet is provided with a through hole as an axle ring; an umbrella rib is composed of three completely identical rectangular parallelepiped units, each rectangular parallelepiped unit has a pair of symmetrical shaft cores on both sides of the bottom end, and the two shaft cores of each rectangular parallelepiped unit are inserted into the axle rings of an adjacent pair of rotating shaft bases to form a rotating shaft; a tissue clamp is composed of a tissue clamp main body and a fixing arc, and the fixing arc is connected to the fixing ring by a silk thread; wherein the umbrella cap and the umbrella rib are made of magnetic material, and the tissue clamp is made of anti-magnetic material. The invention can be inserted through a stamp, has a large cross section, a small height, and has a sufficiently large force acting on an external magnet, and can be used to grab and pull tissues to expose the field of view of laparoscopic surgery.