327 results about "Repulsion force" patented technology

A visual inspection device for surface defects of plastic bottles relates to the technical field of detecting materials by utilizing optical means and comprises a conveying mechanism, a lateral clamping mechanism, a visual inspection module and a rejecting mechanism. The suction cup assembly capable of sliding up and down is arranged in the adsorption hole, and the repulsive force of the first magnet and the second magnet is utilized, so that the vacuum suction cup can automatically adjust the height, be attached to an irregular surface and form effective sealing according to the shape of the bottle bottom (such as a flat bottom, a convex bottom and an inclined surface), and the problem that a traditional fixed plane adsorption hole cannot be matched with a special-shaped bottle bottom is solved; the plastic bottles are prevented from falling or deviating due to inertia during high-speed conveying, and the stability and the accuracy in the detection process are improved.

A reflection module includes a housing, a guide member disposed to be relatively rotatable on the housing, based on a first rotation axis, and a holder disposed to be relatively rotatable on the guide member based on a second rotation axis and having a reflection member mounted therein, wherein a first pulling magnet is disposed on one of the guide member and the holder, a second pulling magnet facing the first pulling magnet is disposed on the other of the guide member and the holder, and both attractive force and repulsive force are applied between the first pulling magnet and the second pulling magnet.

A reflection module includes a housing, a guide member disposed to be relatively rotatable on the housing, based on a first rotation axis, and a holder disposed to be relatively rotatable on the guide member based on a second rotation axis and having a reflection member mounted therein, wherein a first pulling magnet is disposed on one of the guide member and the holder, a second pulling magnet facing the first pulling magnet is disposed on the other of the guide member and the holder, and both attractive force and repulsive force are applied between the first pulling magnet and the second pulling magnet.

The invention belongs to the technical field of flange machining, and particularly relates to a multi-shaft drilling device for flange machining, the multi-shaft drilling device comprises a to-be-machined flange body, a drilling platform, flange clamps and a drilling bit, at least two evenly-distributed moving grooves are formed in the top of the drilling platform, and each moving groove is internally and movably provided with one flange clamp; the flange body to be machined is arranged in the center of the top of the drilling platform and located between the flange clamps. According to the device, when the linear moving frame moves downwards, the vertical frame drives the first piezoelectric plate to move downwards until the first piezoelectric plate is in contact with the second piezoelectric plate, so that the switch electromagnetic block is electrified, and then the magnetic sliding block drives the pushing frame to slide in the direction away from the switch electromagnetic block under the action of magnetic repulsive force of the switch electromagnetic block and the magnetic sliding block, that is, the pushing frame drives the flange clamp to move; and all the flange clamps are made to make folding movement, so that the flange body to be machined is fixed to the center of the drilling platform, the drilling position is more accurate, and the positioning action is automatically completed.

A transport system 10C has a configuration to move a transport body 500 in conjunction with movement of a moving body 200 by using repulsion based on a magnetic force applied between moving body magnets 213 and a transport body magnet 523 when there is a proximal positional relation between these magnets. The transport system 10C includes a control coil 903 that controls a traveling state of the moving body 200, and a coil drive control unit that drives and controls the control coil. The control coil 903 is configured to apply a magnetic force to the moving body magnets 213. The coil drive control unit supplies the control coil 903 with power to cause the control coil 903 to attract the moving body magnets 213 against an air flow flowing within an air blowing tube 100 in order to control and prevent the moving body 200 from traveling.

The utility model provides a ratchet wheel structure of a bicycle hub, which comprises a clutch ratchet group, a first ratchet ring and a second ratchet ring which are made of magnetic materials and mutually exclusive in magnetism, a plurality of first ratchets and second ratchets which are radially arranged are respectively arranged on one end face of each first ratchet ring and one end face of each second ratchet ring, and a plurality of second ratchets are respectively arranged on the other end face of each first ratchet ring and the other end face of each second ratchet ring. The other meshed end edges of the first ratchet rings and the second ratchet rings are respectively provided with an elastic element; a first transmission group is arranged between each first ratchet ring and the hub seat, and a second transmission group is arranged between each first transmission group and the hub seat; therefore, the first ratchet ring and the second ratchet ring which are in a magnetic repulsion state are utilized to generate separation force, and elastic elements at the other ends of the first ratchet ring and the second ratchet ring are matched to apply approaching force, so that the ratchet rings are in a floating state, and when friction force is larger than elastic force and the repulsion force is added, the separation distance between the ratchets on the two sides can be increased so as to reduce friction. And the service life of the ratchets is prolonged, the non-treading tooth disengaging action is quicker and more sensitive, and the maintenance cost can be effectively reduced.

To provide an impact absorption device that can be reused by reverting a holder after use, and that is less likely to generate a repulsive force because impact is absorbed by a friction force generated at the time of press fitting of a columnar member.SOLUTION: An impact absorption device includes: a plate-shaped holder 3 which is detachably assembled to a frame body 2; and a columnar member 4 provided on the holder 3. The holder 3 has a through hole 3a open thereon. Both of one face and the other face of the holder 3 can be assembled to the frame body 2. With one end part 41 side of the columnar member 4 being disposed in the through hole 3a and the other end part 42 side of the columnar member 4 extending to an opposite side of the frame body 2, when an external force toward the one end part 41 side is applied to the other end part 42 side of the columnar member 4, the one end part 41 of the columnar member 4 is displaced toward the side of the frame body 2 and a middle part of the columnar member 4 is press-fitted into the through hole 3a.SELECTED DRAWING: Figure 1

The invention discloses a wall column formwork slurry leakage prevention plugging device, and relates to the technical field of building construction, the wall column formwork slurry leakage prevention plugging device comprises a mounting box, a plugging mechanism is arranged above the mounting box, the plugging mechanism comprises a sealing block, an air bag is fixedly mounted on the bottom surface of the sealing block, a sealing gasket is arranged below the air bag, and a correction assembly is arranged on the back surface of the mounting box. According to the wall column formwork slurry leakage prevention plugging device, through the arrangement of the correction assembly, a worker fixes a magnetic block to a formwork, then when a vibrator vibrates concrete, the pressure detected by a pressure induction piece is increased, and then the concrete is subjected to slurry leakage prevention, so that the slurry leakage prevention of the wall column formwork is achieved; by increasing the magnetic force of the electromagnet, the electromagnet and the magnetic block attract each other, the electromagnet is more firmly fixed to the formwork, meanwhile, the repulsive force between the electromagnet and the magnetic plate is utilized, the sealing block is more tightly attached to the gap, and therefore the phenomenon that concrete leaks is avoided.

The present invention discloses a drawing assistance device, a control method, a refrigerator and a computer-readable storage medium, comprising: a first magnetic force assembly, with a magnet part arranged at the rear side of the drawer and a magnetic force device part arranged on the inner wall of the inner liner box facing the opening; a distance sensing device for detecting the distance that the drawer is drawn out of the inner liner box; and a controller capable of controlling the two parts of the first magnetic force assembly to attract each other, repel each other or cut off power according to the distance information detected by the distance sensing device. By arranging a magnetic force device on the drawer or the fruit and vegetable box, the present invention can generate a repulsive force or an attractive force between the magnetic force device of the first magnetic force assembly and the magnet by controlling the energization of the magnetic force device, so as to provide an outward thrust force to the drawer, reducing the force used by the user to draw the refrigerator outwards; or provide an inward suction force to the drawer, reducing the force used by the user to push the refrigerator back inwards. Magnetic force devices are also arranged on the left and right sides to ensure the stable position of the drawer box.

The invention belongs to the technical field of environmental functional materials and pollution remediation, and particularly relates to a universal method for preparing a magnetic adsorbent based on physical blending. The method comprises the following steps: mixing magnetic colloid particles and non-magnetic colloid particles in a solution, adding salt to adjust electrolyte concentration to induce colloid coagulation, uniformly mixing the particles by ultrasonic or vortex, standing, and collecting the obtained magnetic adsorbent by using an external magnetic field. The mechanism is characterized in that the interaction between particles is based on the colloid coagulation effect of the DLVO theory, and the relative magnitude of electrostatic repulsive force and Van der Waals attractive force is regulated and controlled by regulating and controlling the salt concentration, so that colloid coagulation is driven, and the magnetic adsorbent is formed. Complex chemical modification or high-temperature treatment is not needed, the original structure, adsorption performance and extraction performance of the adsorbent can be reserved, and the adsorbent is endowed with magnetic separation performance. Meanwhile, the method has the advantages of simplicity and convenience in operation, low cost, high universality and the like, and has a wide application prospect in the field of large-scale preparation of magnetic adsorbents.

The application relates to the technical field of electromagnetic damping, and provides a novel eddy current electromagnetic damper which comprises a cylindrical shell conductor plate (formed by embedding a conductive plate and a magnetic conductive plate), a ring-shaped Halbach permanent magnet array (as a mover), two strip-shaped permanent magnets, a central shaft and an end cover. When the damper is impacted, the mover and the stator move relatively, the conductive plate generates an eddy current, and an eddy current resistance is formed. Meanwhile, repulsion between N poles between the two strip-shaped permanent magnets and the ring-shaped Halbach permanent magnet array generates repulsion force, pushes the ring-shaped Halbach permanent magnet array back to the middle position, and makes the damper reset rapidly. The damper has the advantages of simple structure, low cost and high reliability, and is suitable for large-scale popularization and application.

This application relates to the field of underground transportation in coal mines and discloses a method for intercepting runaway speeding vehicles underground. The method includes: acquiring the vehicle speed and a preset speed threshold; triggering a hook to pop out downwards when the vehicle exceeds the speed limit; the hook inserts into a groove in the bottom plate and moves forward with the vehicle, physically connecting with an arresting cable in the shallow groove; the arresting cable, under traction, causes an upper sliding magnet to slide within a steel groove, generating friction and forming a first-stage braking force; the upper sliding magnet approaches a lower fixed magnet, generating a magnetic repulsion force of the same pole, which, combined with the friction force, forms a second-stage braking force until the vehicle stops; finally, the connection is released and the system is reset. This application achieves smooth vehicle interception through the two-stage superposition of friction and nonlinear magnetic repulsion, avoiding rigid impact; a power-off trigger mechanism ensures reliable interception when the vehicle is damaged due to power failure; and the reserved redundant rope segment at the end of the arresting cable compensates for tensile deformation, preventing cable overload and breakage.

The utility model discloses a cable external deformation detection device which comprises a workbench and a cable roller, the top of the workbench is fixedly provided with a vertical plate, the back of the vertical plate is fixedly provided with a motor, the output end of the motor is fixedly provided with a rotating shaft A, and one end of the rotating shaft A far away from the motor is fixedly provided with an electromagnet. A friction ring is fixedly mounted on the back of the vertical plate, a rotating block is rotatably mounted on the inner side of the friction ring, a rotating shaft B is fixedly mounted on one side of the rotating block, connecting plates are fixedly mounted on the outer side of the rotating shaft B and the outer side of the rotating shaft A, and four inserting rods are fixedly mounted on one side of each connecting plate. And when the cable roller is used for winding the detected cable, the current introduced to the magnet is increased, so that the magnetic force of the magnet is enhanced, the repulsive force to the electromagnet is improved, the cable roller moves on the outer side of the rotating shaft A, the cable cannot be stacked and wound, and the winding effect is improved.

The invention relates to an electromagnetic actuator having a magnetic circuit comprising at least two, preferably three, magnetic circuit elements, wherein the magnetic circuit elements exert an attracting or repelling force on one another such that the actuator effects a movement, wherein the position of at least one of the magnetic circuit elements relative to another magnetic circuit element can be adjusted in order to influence the actuator rigidity.

The application discloses a magnetic suspension push neutral pen, which comprises a tube body, a pen core, a gear, a rotating wheel, an upper magnet and a lower magnet with mutual repulsion, wherein the gear and the rotating wheel are sleeved on the tube body, the inner side of the tube body is provided with a guide rail, the guide rail is in sliding connection with the gear, the gear is used for abutting against the rotating wheel to drive the rotating wheel to move along the axial direction to a first point position and a second point position, the upper magnet is located below the rotating wheel and moves up and down along the axial direction following the rotating wheel under the action of the mutual repulsion, and the upper end of the pen core is connected with the rotating wheel and follows the rotating wheel to axially stretch and contract so that the pen tip of the pen core is located on the inner side of the tube body or extends out. The structure of the scheme does not need to use a spring and can effectively reduce noise.

The present invention relates to a permanent magnet assembly (1) for a shuttle (2) of a linear motor and / or a planar motor. The permanent magnet assembly (1) has a plurality of permanent magnets (3, 3') disposed on at least one magnetic surface. These permanent magnets (3, 3') form alternating magnetic strips with different polarities in the central region of the magnetic surface. At the edge (7, 7') of the magnetic surface, at least one end magnetic body (13, 13') is provided in the edge surface between the central region and the edge (7, 7'). The at least one end magnetic body changes the magnetic field distribution formed by the permanent magnet (3, 3') in the central region along the edge (7, 7') in a manner that varies along the length of the edge (7, 7'). Alternatively, the at least one end magnetic body (13, 13') is implemented as a magnetic short-circuit element that guides the magnetic field formed by the permanent magnet (3, 3') in the central region along the edge (7, 7'). The mutual attraction or repulsion between two permanent magnet assemblies (1, 1') of the same type arranged side by side with parallel edges (7, 7') is reduced by the changed magnetic field.

The magnetic fluid sealing structure comprises an outer sleeve, an inner ring sleeve, a first magnetic ring and a second magnetic ring, the outer sleeve, the inner ring sleeve, the first magnetic ring and the second magnetic ring are coaxially arranged, the inner ring sleeve is located in an inner ring of the outer sleeve, the second magnetic ring is located in a groove of the outer sleeve, the first magnetic ring is located in a groove of the inner ring sleeve, and the second magnetic ring is located in a groove of the outer sleeve. The same magnetic poles of the first magnetic ring and the second magnetic ring are oppositely arranged, a gap is formed between the first magnetic ring and the second magnetic ring, and the magnetic fluid is placed in the gap, so that a dynamic O-shaped ring formed by the magnetic fluid under the action of a magnetic field has high adaptability and stability, leakage of a gas or liquid medium can be effectively prevented, and the service life of the gas or liquid medium is prolonged. And the device is suitable for high-vacuum environments or corrosive medium treatment occasions. The like magnetic poles of the first magnetic ring and the second magnetic ring are oppositely arranged, strong repulsive force is generated, it is ensured that the magnetofluid forms evenly-distributed liquid rings in a gap between the first magnetic ring and the second magnetic ring, and the sealing effect is further enhanced.

The key structure of the keyboard comprises a keyboard shell, a keycap, a groove, a first magnet and a second magnet, the keycap is vertically installed on the keyboard shell, the groove is formed in the keycap, the first magnet is installed in the keycap, the second magnet is installed at the bottom of the first magnet, and the second magnet is installed at the bottom of the second magnet. Through the magnetic interaction between the first magnet and the second magnet and the adjustment of the attraction force or repulsive force of the electromagnet to the second magnet, the key cap can move up and down quickly and stably, so that the response speed of the keyboard and the stability of typing experience are improved, and the design of the electromagnet below the second magnet is matched with a contraction part between the electromagnet and the second magnet. According to the key structure, a progressive and controllable resistance sense can be provided when the key is pressed down, the touch sense of the key is softer, feedback is clear, finger fatigue caused by long-time typewriting is reduced, and due to the application of the conductive film and the elastic rubber cap, the durability of the key structure is enhanced, and the service life is prolonged.

The application discloses a constant elastic force clamping mechanism, which comprises a base, a left clamping piece, a right clamping piece, an elastic piece, a sliding block, a first magnet arranged in the sliding block and a second magnet arranged in the base, wherein the first magnet and the second magnet are oppositely arranged and spaced, the two opposite surfaces of the first magnet and the second magnet are parallel to each other, the included angles between the two surfaces and a horizontal plane are θ respectively, and the repulsion force between the first magnet and the second magnet is a clamping force F of the sliding block on a bottle mouth X =Fsinθ; the clamping force F of the sliding block on a bottle with a bottle mouth radius of a set value R1 1X =F1sinθ, wherein the clamping force F of the sliding block on a bottle with a bottle mouth radius of a set value R2 2X =F2sinθ, and F1=F2. The constant elastic force clamping mechanism and the constant elastic force clamping method can maintain a constant clamping force after replacement for two types of bottles with a determined bottle mouth radius, and the problems of bottle falling and bottle mouth scratching are avoided.

To provide an electrostretching machine with improved material uniformity. [Solution] The present invention relates to an electrostretching machine with improved material uniformity, in which the shape of the electric field generated between the emitter and the collector is changed stably or variably over time, thereby achieving a more uniform deposition of fiber-particles. To do this, the machine comprises a steering electrode (6) positioned at the end of an injector (1), the steering electrode (6) being connected to a power module (5) that applies a potential difference to the steering electrode to exert a repulsive or attractive force on the fiber-particles (4), and a collector (3) comprising conductive material regions (8) positioned on the surface of an insulating material (7) that are electrically insulated from each other, and a voltage which can have a continuous or alternating amplitude and / or phase is applied to the conductive material regions (8).

The invention discloses a magnetic latching relay, and relates to the technical field of relays. In order to solve the problems that the contact opening distance of a conventional relay is insufficient (only 0.8 mm) and the conventional relay is difficult to bear 6000A short-circuit current, the invention designs a symmetrical Z-type contact system. The system comprises two groups of movable reeds which form a Z-shaped structure through a riveting connection sheet. And the armature assembly rotates to drive the two push sheets to drive each group of movable reeds to realize a stroke greater than 3mm, so that an electric gap between the two lead-out sheets is greater than 5.5 mm. When short-circuit large current occurs, reverse repulsive Lorentz force (F2) is generated between the movable contact spring and the connecting sheet, repulsive force (F1) between the movable contact and the static contact is offset, reliable attachment of the contacts is ensured, and explosion under the impact of 6000A short-circuit current is prevented.

A detachable repelling magnet assembly for use with a water pipe, comprising a plurality of magnetic components positioned in a repelling sequence in which each magnetic component exerts a repelling force against the magnetic component adjacent thereto, the magnetic components are disposed linearly within a flexible outer casing secured in linear alignment with the water pipe, or are disposed in opposing pairs within a housing formed of a first portion and a second portion which fit together to circumferentially enclose a portion of the water pipe.

The present disclosure relates to a reflective module comprising: a housing; a bracket disposed in the housing and configured to be rotatable relative to the housing; a first magnetic portion disposed on one surface of the bracket; and a second magnetic portion disposed on one surface of the housing and facing the first magnetic portion, in which both the attractive force and the repulsive force act between the first magnetic portion and the second magnetic portion. The present disclosure also relates to a camera module comprising the reflective module.

The utility model relates to the technical field of chemical pumps, discloses a circulating lifting chemical pump, and solves the problems that the production process efficiency is influenced due to vibration of a pump body during use, and the damping effect is reduced due to aging and fatigue phenomena of a spring material. A circulating lifting chemical pump comprises a pump body, a damping plate, a bottom plate and a damping assembly, a first magnetic block and a third magnetic block have the same magnetic pole and generate upward repulsive force, the first magnetic block and the third magnetic block have the same magnetic pole and generate downward repulsive force, and when the pump body operates and generates vibration, the vibration is transmitted to the damping plate through the pump body, and the damping assembly is arranged on the bottom plate. The damping plate and the damping column move up and down together, the upward repulsive force attempts to prevent the damping column from further moving upwards along with the movement of the damping plate and the damping column, the downward repulsive force attempts to prevent the damping column from moving downwards, and therefore the damping effect is achieved.

The invention discloses an energy-saving type spraying dust suppression device which comprises a fence, the top end of the fence is fixedly connected with a plurality of sets of spraying pipes communicated with one another, one end of each set of spraying pipes located at the head end and the tail end is connected with an L-shaped guide-in pipe and an L-shaped guide-out pipe in a penetrating mode, and the L-shaped guide-in pipes and the L-shaped guide-out pipes are symmetrically distributed; the ingress pipe is provided with a filter part for filtering water, the spray pipe is provided with a jet flow part for increasing the flow speed of water flow and leading the water flow out of the spray pipe, and the spray pipe is provided with a diffusion part for scattering the water flowing out of the jet flow part to enlarge the water mist range; continuous rotation without extra power drive is achieved through the diffusion piece by means of water flow impact force and magnetic repulsive force, high-speed water flow can be fully scattered through the four sets of symmetrical striking plates, the water mist coverage range is greatly expanded, the dust suppression coverage area and effect are improved, abrasion is reduced through the smooth design of a rotating structure, the service life of components is prolonged, and the cost is reduced. And the energy-saving performance and the reliability are both considered.

We offer wind chimes that make the bells ring when the paper strips sway and the tongues vibrate, even in places where there is no wind. [Solution] The wind chime of this invention is configured so that the tongue 7 and the strip 1 are suspended by a hanging string 6, and a permanent magnet is placed at the bottom 2 of the strip. An electromagnet 3 is also placed below that, and when electricity is applied to the electromagnet, a magnetic repulsive force is generated, causing the strip to swing. This swing is transmitted to the tongue via the hanging string, and when it comes into contact with the bell 8, it produces a sound.

The present application provides a magnetic induction type mover and a magnetic induction type loitering munition launching device. The magnetic induction type loitering munition launching device includes a barrel, a magnetic induction type mover, a plurality of coils and a plurality of sensors. Through the arrangement of a plurality of magnetic induction bodies, during a single launch process, the sensors detect the magnetic induction bodies multiple times, the corresponding coils generate magnetic fields multiple times, and an electromagnetic repulsive force in the direction of the launch end is applied to the magnetic induction type mover multiple times, thereby reducing the length of the launching device and saving costs. Through the design of the lengths and distribution distances of each component, the sum of the length of the coil and the distance between adjacent coils is equal to the distance between adjacent magnetic induction bodies, so that during the launch process, the magnetic induction type mover can continuously receive an electromagnetic repulsive force in the direction of the launch end, continuously accelerating the magnetic induction type mover to push the loitering munition, avoiding multiple impacts on the loitering munition, and reducing the damage caused to the loitering munition.

The invention relates to the technical field of suspension conveying systems, and particularly discloses a maritime work platform storm self-adaptive loading and unloading buffer device which comprises a supporting seat, a supporting frame and a guide rail, a surrounding plate is fixedly connected to the outer surface of the upper end of the supporting seat, the outer surface of the upper end of the supporting seat is in sliding contact with the lower end of the supporting frame, and a buffer assembly is arranged on the outer side of the supporting frame. The buffering assembly comprises a traction rod slidably connected with the supporting frame, a magnetic ring is fixedly connected to the outer surface of the traction rod, by arranging the buffering assembly, when wind wave impact force is transmitted to the traction rod through the guide base, the balls make contact with one induction plate under the inertia effect, the electromagnet can be subjected to the magnetic repulsive force effect of the magnetic ring, and therefore the impact force of the wind wave is reduced. The supporting frame is arranged on the supporting base, the wind wave impact force borne by the supporting base can be buffered and absorbed, the movement amplitude between the supporting frame and the traction rod can be reduced to a certain degree, the erecting stability of the conveying rail of the rail can be improved, and then the cargo conveying precision can be effectively improved.

The utility model discloses a magnetic floating polishing device, and belongs to the technical field of polishing devices. A magnetic floating polishing device comprises a cylinder and a polishing disc, and further comprises a permanent magnet installed in the cylinder, the bottom of the permanent magnet is fixedly connected with a fixing rod, the fixing rod is slidably connected with the cylinder, and the lower end of the fixing rod extends out of the bottom of the cylinder and is connected with the polishing disc; the first electromagnetic coil is fixedly connected to the bottom of the inner wall of the barrel, a second electromagnetic coil is installed in the barrel and located above the permanent magnet, and the polarity of the first electromagnetic coil and the polarity of the second electromagnetic coil are opposite to the polarity of the permanent magnet; the position of the second electromagnetic coil or the current of the first electromagnetic coil or the second electromagnetic coil is changed, so that the repulsive force between the electromagnetic coils and the permanent magnet is changed, the relative distance between the grinding disc and a workpiece is changed, the grinding force is adjusted, the structure is simple, the cost is low, and the grinding effect is improved.