833 results about "Electromagnetic drive" patented technology

The invention provides a multi-angle cutting laser pipe cutting machine, and belongs to the technical field of laser cutting equipment, the multi-angle cutting laser pipe cutting machine comprises a machining module, a feeding module is arranged at one end of the machining module, a discharging module is arranged at the other end of the machining module, and the multi-angle cutting laser pipe cutting machine further comprises a cutting assembly connected with the machining module and used for cutting pipes; the device has the advantages that flexible adjustment of the position of the focus lens is achieved through cooperation of air cylinder driving and telescopic spring buffering, focus requirements of pipes with different thicknesses are met, flexible connection of a cooling channel is achieved through the telescopic pipe, continuous and stable heat dissipation of the focus lens is guaranteed, and the service life of the lens is prolonged; the electromagnetically-driven rotating cylinder drives the turbine blades to rotate to form negative-pressure airflow, an air curtain is formed at the cutting end, metal residues and dust are prevented from being diffused to the focus lens and the lens cone, a physical isolation barrier is formed through the protection sleeve, impurities are prevented from being attached to equipment parts or blocking a pipeline, long-term stable operation of equipment is guaranteed, and diffusion of the equipment to the working environment is reduced.

The invention discloses a numerical control machine tool vibration suppression self-adaptive control system and method, and relates to the technical field of intelligent vibration control, and the method comprises the steps: building a current-modal dynamic mapping relation between an electrical drive characteristic and a mechanical structure modal response based on a vibration state feature vector; real-time machine tool modal state vectors are obtained through online recursive estimation; the machine tool modal state vector is used as a boundary condition to be injected into the virtual prediction model; solving to obtain an optimal control parameter sequence and a corresponding vibration prediction result in a future time domain by taking multi-performance index collaborative optimization as a target through a rolling optimization control strategy; translating the control parameter sequence into a specific execution instruction and issuing the specific execution instruction; monitoring an execution process in real time and recording actual response data; according to the method, the accuracy of vibration prediction and the real-time performance of control response are improved by establishing the dynamic mapping relation from the electromagnetic driving characteristics of the servo main shaft and the feed motor to the dynamic response of the machine tool structure.

The invention relates to an SPnT surface-mounted microwave mechanical switch, and relates to the technical field of microwave switches, the microwave mechanical switch comprises a metal substrate, a plurality of micro coaxial transmission lines are arranged in the metal substrate, the length direction of the micro coaxial transmission lines is arranged along the thickness direction of the metal substrate, and the two ends of the micro coaxial transmission lines penetrate through the metal substrate; the radio frequency communication mechanism comprises a plurality of radio frequency reeds, one radio frequency reed is correspondingly arranged between every two adjacent micro coaxial transmission lines, the radio frequency reeds and the metal substrate are arranged in parallel at intervals, and linkage pieces are arranged on the radio frequency reeds; the electromagnetic driving mechanisms and the radio frequency reeds are arranged in a one-to-one correspondence mode, the electromagnetic driving mechanisms are connected with the corresponding linkage pieces, and the electromagnetic driving mechanisms are used for driving the radio frequency reeds to be in lap joint with the two corresponding micro-coaxial transmission lines. The microwave mechanical switch provided by the invention can be suitable for application scenes with relatively high requirements on high-frequency performance.

The invention relates to a piezoelectric and electromagnetic composite driving microminiature jumping robot structure. The two Z-shaped piezoelectric legs are symmetrically installed on the bottom face of the platform, the fan-shaped foot soles are arranged at the bottoms of the Z-shaped piezoelectric legs respectively, the electromagnetic driving device is located between the two Z-shaped piezoelectric legs, the vertical energy storage springs are located on the two sides of the electromagnetic driving device, and the direction adjusting legs are arranged at the bottom of the electromagnetic driving device. Each Z-shaped piezoelectric leg is provided with an electric ceramic piece polarized in the thickness direction. According to the invention, the Z-shaped piezoelectric legs cooperate with the attraction / repulsive force generated by the electromagnetic device through the bending deformation of the piezoelectric ceramic piece in a d31 mode to cooperatively compress the vertical energy storage spring to realize energy storage; and during release, spring energy and electromagnetic thrust are superposed to push the robot to realize high-energy-density jumping, so that the problem of low energy storage density of the miniature jumping robot is solved, and the miniature jumping robot has the characteristics of compact structure, strong obstacle crossing ability and high motion controllability.

The invention relates to the field of radio frequency mechanical switches, and discloses a radio frequency mechanical switch with a self-holding function, which comprises an output interface, a housing, a switch assembly and a signal interface assembly, and is characterized in that the output interface is arranged at the top end of the housing, the switch assembly is arranged in the housing, and the signal interface assembly is arranged at the bottom end of the switch assembly; the signal interface assembly is provided with a total signal interface and a branch signal interface, and the switch assembly comprises a mechanical motion assembly and a signal transmission assembly. Through a mechanism of combining electromagnetic driving and permanent magnet adsorption, stable maintenance of a moving iron needle state after power failure is realized, the moving iron needle is controlled through a current direction when a coil column is electrified, and after power failure, the moving iron needle is adsorbed by a first magnet due to the characteristics of an iron material, so that the switch can reliably maintain the current state without continuous power supply, and the switch is safe and reliable. And the stability and the reliability are improved.

A chess-like piece positioning and recognition system, including: an MCU, an RFID module, multi-channel analog switches, an electromagnet and communication signal switch unit, an electromagnetic drive unit, antennas, silicon steel blocks, and pieces. The MCU is used for communication with the RFID module, selecting channels of the multi-channel analog switches, and electromagnet and communication signal switch selection. The RFID module is used for reading information from the pieces. The multi-channel analog switches are used for group gating and intra-group channel gating of the RF channels. The electromagnet and communication signal switch unit is used for switching between the electromagnetic drive unit and the RF channels. The electromagnetic drive unit is used for driving an electromagnet. The antenna is used for sending and receiving signals from the pieces and also serves as the coil for the electromagnet. The silicon steel block is used as the core of the electromagnet, which generates a magnetic attraction to the pieces after being magnetized.

The present invention discloses an annular magnetic pulverization system for micro-nano crushing of wood fibers, comprising an annular pulverization cavity, a breathing device, and an emission and recovery device. The annular pulverization cavity is a closed structure, and is filled with conductive particles. A circle of electromagnetic drive devices and a circle of gravitational devices are arranged inside the annular pulverization cavity, wherein the electromagnetic drive device is located in the outer circle, and the gravitational device is located in the inner circle. The gravitational device and the electromagnetic drive device exist together. A conductive particle emission and recovery device is connected to the outside of the annular pulverization cavity. Breathing ports are provided at the top and bottom of the annular pulverization cavity, which are connected to the breathing device. Wood fiber powder moves up and down under the regularity of the breathing device, collides with the high-speed moving conductive particles in the annular cavity, and is punctured and crushed. The present invention overcomes the problems of limited diameter of existing professional supporting equipment, the inability of conductive particles to obtain initial velocity, and the problem of insufficient processing efficiency due to the lack of a breathing device.

The invention discloses a two-dimensional large-angle fast reflecting mirror device based on a sheet-shaped flexible support, a flexible support assembly comprises a flexible connecting sheet of a hollow structure and a flexible connecting rod, one side of the flexible connecting sheet is fixedly connected with a reflecting mirror assembly, and the other side of the flexible connecting sheet is fixedly connected with a base; the axial direction of the flexible connecting rod is perpendicular to the plane where the flexible connecting piece is located and penetrates through the center of the flexible connecting piece, one end of the flexible connecting rod is fixedly connected with the center of one side of the reflector assembly, and the other end of the flexible connecting rod is fixedly connected with the center of one side of the reflector assembly. The electromagnetic driving assembly penetrates through the flexible connecting piece and then is fixedly connected with the reflector assembly and the base. The sensor assembly is fixedly arranged at the central position of the base and is spaced from the reflector assembly by a first preset distance. Through the collaborative design of a flexible connecting piece-flexible connecting rod composite supporting structure and an obliquely-arranged moving magnet type electromagnetic driving assembly, the two-dimensional large-angle deflection capacity of the magnitude of + / -10 degrees is achieved.

The invention provides an electromagnetic driving system. In one embodiment, the electromagnetic drive system comprises: a) one or more magnetic robots located within a workspace; b) three independent mechanical arms, wherein each independent mechanical arm comprises a movable electromagnetic coil; c) a positioning system for tracking the one or more magnetic robots; the three independent mechanical arms are controlled through multi-objective optimization to ensure a coil configuration space capable of providing a magnetic field for manipulating the one or more magnetic robots in the working space.

The invention discloses a soft reset type electric piano counterweight keyboard, and relates to the technical field of piano equipment. A key assembly is arranged at the top of the piano shell; a hinge frame is fixedly installed at the bottom in the piano shell through bolts, soft and feedback playing hand feeling is achieved through precise mechanical linkage, meanwhile, the position of an inductance piece is changed by sliding and extruding a clamping bead through a balance weight, and high-precision and high-reliability pressing force detection is achieved in combination with optical sensing auxiliary monitoring. The force signal is converted into keyboard'post-touch layer 'control, and a single-key or global tenuto mode is intelligently distributed; in addition, the key contact state is accurately captured through photoelectric induction, space capture is carried out on hand actions in combination with an infrared camera and a sensing radar, and real-time tactile feedback is provided through electromagnetic driving.

The invention provides a silk fabric take-up and pay-off device, and relates to the technical field of textile machinery. The device comprises a supporting frame, a winding disc, a magnetic rotating assembly and an electromagnetic driving assembly, the winding disc and the magnetic rotating assembly are coaxially and fixedly connected to the supporting frame through a center rotating shaft, and the electromagnetic driving assembly generates an alternating magnetic field to drive the magnetic rotating assembly to rotate. According to the scheme, non-contact electromagnetic driving is adopted to replace traditional mechanical transmission, the abrasion problem caused by physical contact is avoided, the operation stability and the start-stop response speed are improved, meanwhile, vibration noise is reduced, the maintenance process is simplified, and the device is suitable for efficient winding and unwinding operation in silk fabric production.

A system for performing work processes on workpieces or the like. The system includes at least two first process stations for performing, in each case, a first work process on the workpiece or the like with a first process duration and at least one second process station for performing a second work process on the workpiece or the like with a second process duration, wherein the first process duration and the second process duration are of different lengths, and including a transport surface on which the workpieces or the like are movable individually on transport units by means of electromagnetic drives.

The invention relates to the technical field of driving devices, in particular to a small-angle swinging electromagnetic driving module which comprises a stator and a rotor, the rotor comprises a rotating shaft, a magnetic conductive assembly and two permanent magnets, the magnetic conductive assembly is arranged on the rotating shaft, the two permanent magnets are arranged on the magnetic conductive assembly at intervals, and the magnetic conductive assembly is provided with a first cambered surface; the stator comprises a shell, a coil and a magnetic framework, the magnetic framework and the rotating shaft are arranged in the shell, the magnetic framework is mounted on the shell, the coil is wound on the magnetic framework, the magnetic framework is provided with a second cambered surface, and the first cambered surface and the second cambered surface are concentrically arranged; two pole shoes are arranged in the shell, each pole shoe is provided with an inner arc surface, and the central angle corresponding to each inner arc surface is not larger than the swing angle of the corresponding permanent magnet. According to the invention, the magnetic conductive assembly is coupled with the magnetic conductive skeleton, the coil is utilized to generate an alternating magnetic field to control the permanent magnet to drive the rotor to swing, and the inner cambered surface angle setting of the pole shoes is utilized, so that the effect of controlling the rotation amplitude of the permanent magnet to be kept within a required range is achieved.

The invention relates to the technical field of fault prediction, and particularly discloses a fault prediction method and system for a high-voltage switch operating mechanism. According to the method, early-stage accurate prediction of the fault of the high-voltage switch operating mechanism is realized through multi-feature extraction and fusion in combination with a lightweight Transformer model, and compared with a traditional single current signal analysis method, the method fully considers the coupling effect of electromagnetic and mechanical states, captures electromagnetic abnormality through current-electromagnetic coordination node features, and improves the accuracy of the fault diagnosis of the high-voltage switch operating mechanism. According to the method, mechanical vibration faults are recognized through vibration energy features, motion discordance is detected through electromagnetic driving force-motion acceleration cooperative features, so that possible fault modes of the mechanism are comprehensively covered, the accuracy and the real-time performance of evaluation are further improved through efficient fusion of the lightweight Transform model, the early fault missing report rate is effectively reduced, and the reliability of the mechanism is improved. And reliable guarantee is provided for safe operation of a power system.

The low-noise rigidity valve comprises a valve body and a valve seat, the valve body comprises a valve shell, a valve element, a valve rod, stop iron and an electromagnetic driving mechanism, the electromagnetic driving mechanism comprises an electromagnetic coil and a movable iron core capable of moving in the axial direction, an elastic piece is connected between the movable iron core and the stop iron, and a containing cavity is formed in the end face of the end, close to the valve seat, of the stop iron. The valve element is at least partially contained in the containing cavity, and the end, close to the stop iron, of the valve element is connected with a soft cushion block. A buffering piece made of flexible materials is connected to the inner bottom wall of the containing cavity, and the cushion block abuts against the buffering piece in the power-off state of the electromagnetic coil. According to the low-noise rigidity valve, the impact strength between the cushion block and the stop iron can be obviously reduced, and noise is low.

The utility model provides a surface treatment polishing device for mobile toilet roof processing, which comprises a motor, a turntable, a small polishing head and a polishing piece, the output end of the motor is fixedly provided with the turntable, the outer end of the turntable is provided with a connector, and a round cavity is arranged between the connector and the turntable; an electromagnetic driver is detachably and fixedly mounted in the circular cavity, and a small polishing head is detachably and fixedly mounted on the electromagnetic driver; a polishing piece is detachably and fixedly installed on the connector, and a hole is formed in the surface of the polishing piece in a penetrating mode. The small polishing head is positioned in the hole; by means of the overall arrangement, in the using process, the surface of the roof of the mobile toilet can be polished in a large area, and concave positions and convex positions on the surface of the roof of the mobile toilet can be polished under the condition that no equipment is replaced; therefore, the polishing quality of the roof surface of the mobile toilet is guaranteed, and the whole mobile toilet is more convenient and flexible.

The invention relates to the technical field of medical detection equipment, in particular to a system and method for measuring the length of an ocular axis, the system comprises a probe main body structure, an ultrasonic signal receiving and transmitting module, an electromagnetic driving module, a sliding rail structure and a controller, and the probe main body structure is formed by combining a transducer and a magnetic column; the probe main body structure is arranged in the slide rail structure in a sliding manner; the electromagnetic driving module is arranged on the sliding rail structure and is matched with the magnetic column; the ultrasonic signal transceiving module is in communication connection with the transducer; according to the invention, through modular design and an innovative ejection probe structure, in combination with high-precision ultrasonic signal processing, rapid and accurate measurement of the length of the ocular axis is realized.

The utility model belongs to the technical field of valves, and discloses a bidirectional inverse proportion flow valve. The bidirectional inverse proportional flow valve comprises a valve sleeve, a proportional valve element, an electromagnetic driving assembly and a compensation valve element. A valve port A and a valve port B are formed in the valve sleeve. One end of the proportional valve element is arranged in the valve sleeve and provided with a valve element hole, and fluid can flow to the valve port B through the valve port A and the valve element hole in sequence or flow to the valve port A through the valve port B and the valve element hole in sequence. The electromagnetic driving assembly is assembled on the valve sleeve and used for pushing the proportional valve element to axially move in the valve sleeve. The compensation valve element is arranged in the valve sleeve and can move in two directions in the axial direction of the valve sleeve under the action of the pressure difference between the valve port A and the valve port B. The bidirectional inverse proportion flow valve provided by the utility model can realize bidirectional inverse proportion adjustment and pressure compensation, so that the bidirectional inverse proportion flow valve can be applied to occasions requiring bidirectional proportion adjustment and pressure compensation, and is wide in application scene and high in universality.

According to the wet kraft paper box sealing machine, an upper box sealing device and a lower box sealing device each comprise a paper frame and a paper pressing guide assembly, a wet kraft paper roll is arranged on each paper frame, and wet kraft paper is guided to a wet kraft paper humidifying and heating device through a paper feeding guide part; the wet kraft paper passes through the wet kraft paper humidifying and heating device and waits for packaging boxes at outlets of the upper box sealing device and the lower box sealing device, and a wet kraft paper pressurizing part is arranged above a paper inlet of the wet kraft paper humidifying and heating device; water inlet and outlet holes of the two wet kraft paper humidifying and heating devices are connected into a water storage tank located on the rack at the lower end of the roller shaft layer through pipelines, and paper pressing guide assemblies are arranged on the front side and the rear side of the upper box sealing device and the front side and the rear side of the lower box sealing device correspondingly and located on the rear sides of the corresponding wet kraft paper. The device has the advantages that the cover plate is pressurized through the electromagnetic driving part to further pressurize the wet kraft paper, so that the wet kraft paper works smoothly; the wet kraft paper humidifying and heating device heats and humidifies the wet kraft paper to improve viscosity and facilitate box sealing.

The invention discloses a constant-force floating grinding device based on magnetoelastic cooperative driving and a control method thereof. The constant-force floating grinding device comprises a rigid connecting assembly; the elastic guide unit is connected between the upper connecting assembly and the lower connecting assembly and comprises a plurality of groups of reset springs and guide rods which are symmetrically distributed; the electromagnetic repulsive force structure comprises a stator electromagnet and a rotor electromagnet which are coaxially and symmetrically arranged, and the polarities of the stator electromagnet and the rotor electromagnet are configured to repel each other so as to generate adjustable dynamic compensation repulsive force; the force sensor is connected to a force transmission path in series and is used for detecting grinding force; the Hall displacement sensor is used for detecting a non-contact floating air gap of the size of the air gap; the temperature sensor is embedded in a coil winding of the rotor electromagnet; and a control unit. The elastic guide unit bears most static loads, the electromagnet only needs to work in a low-power-consumption area for high-frequency fine adjustment, compared with a pure electromagnetic scheme, energy consumption is remarkably reduced, the problems of power consumption and heating are solved, and meanwhile the characteristics of fast response and high precision of electromagnetic drive are considered.

The utility model relates to an electromagnetic driving mechanism and a high-voltage direct-current relay. The electromagnetic driving mechanism comprises a coil, a static magnetic conductive piece and a movable magnetic conductive piece. The static magnetic conductive piece is provided with a first magnetic pole face. The movable magnetic conducting piece is provided with a second magnetic pole face opposite to the first magnetic pole face, and the coil is fixed relative to the static magnetic conducting piece and arranged around the movable magnetic conducting piece in the circumferential direction; the movable magnetic conductive piece can move relative to the coil so as to be close to or far away from the static magnetic conductive piece; the vertical distance between part of the surfaces of the first magnetic pole face and the second magnetic pole face is larger than the vertical distance between the rest surfaces of the first magnetic pole face and the second magnetic pole face. According to the electromagnetic driving mechanism, the magnetic density when the first magnetic pole face and the second magnetic pole face attract each other is improved, and therefore the magnetic retention force when the static magnetic conduction piece and the movable magnetic conduction piece attract each other is improved.

The utility model discloses a narrow-gap electromagnetic drive inspection robot device which comprises a frame, magnetic wheel sets are installed on the two sides of the frame respectively, an image module is installed at the front end or the rear end of the frame, a supporting module is installed on the frame, the supporting module comprises supporting idler wheels, and the supporting idler wheels are elastically installed on the frame. By means of the magnetic wheel sets installed on the two sides of the frame and the supporting module installed on the frame, the robot can walk longitudinally and stably in a narrow gap between a generator set stator and a rotor, and an operator can conduct nondestructive testing on the surface of the generator set stator through the image module.

The invention relates to the technical field of fast reflecting mirrors, in particular to a two-dimensional large-angle fast reflecting mirror device based on rigid support, which comprises a moving magnet type electromagnetic driving assembly and an eddy current sensor assembly which are arranged on the periphery of the central position in a base; the moving magnet type electromagnetic driving assembly drives the rigid supporting assembly to drive the reflector lens to deflect within a set angle, and the eddy current sensor assembly is used for detecting the deflection angle of the reflector lens. The rigid supporting assembly comprises a mirror holder, a supporting frame, a supporting long shaft and a supporting short shaft; the reflecting mirror lens is connected with the mirror holder, the mirror holder is arranged in the supporting frame through the supporting long shaft, and the supporting frame is connected with the base through the supporting short shaft; the mirror holder rotates in the first direction through the supporting long shaft and rotates in the second direction through the supporting short shaft. According to the invention, the rigid supporting assembly is driven by the moving magnet type electromagnetic driving assembly, so that the reflector lens deflects in two orthogonal directions around the supporting long axis and the supporting short axis, the limitation that the deflection angle of the existing reflector system is small is broken through, and two-dimensional large-angle and high-precision light beam deflection can be realized.

The invention discloses a physical vapor deposition auxiliary device and a use method thereof, and relates to the technical field of semiconductor technologies, and the technical key points are that the physical vapor deposition auxiliary device comprises a machine body, a vacuum pump, an electron generation system, basic components of a reaction gas bin and a clean gas bin, and three functional modules of a target material cleaning module, a gas distribution optimization system and a multi-axis rotating workpiece table; the target material cleaning module adopts a coaxial nested structure, an outer-layer ion gun removes macroscopic pollutants of the target material, and an inner-layer focusing gun removes microscopic oxides; the gas distribution optimization system adjusts the gas distribution through an annular porous guide plate and a dynamic feedback control module, and maintains the air pressure in the cavity to be uniform; the multi-shaft rotating workpiece table utilizes a driving motor, a bevel gear set, a sliding rail and an electromagnetic driving system to achieve revolution, rotation and inclination angle adjustment of a workpiece. The problems that in the prior art, target cleaning is insufficient, gas distribution is uneven, and coating uniformity is poor can be effectively solved.

The invention discloses a linear kick rapid opening and closing control method for an isolating switch, and particularly relates to the technical field of opening and closing control of high-voltage isolating switches. Collecting a linear displacement signal between the conductive arm and the static contact and an electromagnetic driving current change curve, and constructing a kick behavior data matrix; establishing a multi-dimensional state energy threshold model based on the peak acceleration and the zero crossing point; combining a real-time current response curve to complete kick prediction trajectory fitting; fast phase torque compensation is carried out according to the current phase deviation angle, and an active suppression control pulse sequence is generated to realize kick phase locking; a damping recovery coefficient is further calculated based on aftershock feedback, an electromagnetic response factor at the moment of operation is fused, a final control instruction sequence is generated and output to a driving unit, and accurate and high-speed switching-on and switching-off operation is achieved; the method has the advantages of fast control response, strong anti-disturbance capability, high adaptability and the like, and is suitable for accurate control of the isolation switch in various complex power scenes.

The utility model relates to an electromagnetic driving mechanism and a high-voltage direct-current relay. The electromagnetic driving mechanism comprises a coil, a static magnetic conductive piece and a movable magnetic conductive piece. The static magnetic conductive piece and the coil are relatively fixed; the movable magnetic conductive piece and the static magnetic conductive piece are oppositely arranged, and the movable magnetic conductive piece can be magnetized to move towards the static magnetic conductive piece when the coil is electrified; the movable magnetic conductive piece comprises a movable core body and an amplification part which are arranged in a split mode and connected with each other. The amplification part is arranged at the end, facing the static magnetic conductive piece, of the movable core body and surrounds the movable core body in the circumferential direction. According to the electromagnetic driving mechanism, the movable magnetic conductive piece is arranged to be of a split structure of the movable core body and the amplification part, and the preparation and maintenance cost of the movable magnetic conductive piece can be reduced.

The invention discloses a mechanical-electrical-sensing integrated quick-change interface and a quick-change method, and belongs to the technical field of mechanical engineering. The quick-change connector comprises a connector driving end, a connector driven end and a locking force increasing mechanism, and high locking force is achieved on the premise of miniaturization by adopting the principle that electromagnetic drive is combined with conical surface force increasing. The electrical connection and protocol conversion module integrates a tail end slave station, supports conversion of various communication protocols such as RS-485, CAN, EtherCAT and PWM, and realizes plug and play of a tail end tool; and the sensing module integrates a visual sensor and a six-dimensional force sensor and provides real-time environmental vision and force / torque feedback. Through deep integration of structure, electricity and sensing, the problems that an existing quick-change interface is complex in structure, poor in protocol compatibility and lack of autonomous sensing capacity are solved, and the flexibility, reliability and intelligent level of on-orbit fine operation of the space robot are remarkably improved.

The invention discloses a hydraulic buffer type electromagnetic drive rotor-static rub-impact device and a test method, and relates to the technical field of aeroengine blade rub-impact tests. The hydraulic buffer type electromagnetic drive rotor-static rub-impact device comprises a shell and an electromagnetic coil arranged at the end of the shell; the hydraulic damper sequentially penetrates through the electromagnetic coil and the shell, the three-way force sensor and the rub-impact head are sequentially arranged at the telescopic end of the hydraulic damper, the permanent magnet is arranged at the end, away from the shell, of the hydraulic damper in a sleeving mode, and the electromagnetic coil is arranged on the outer wall of the hydraulic damper in a sleeving mode, one end of the first spring is connected with the shell, the other end of the first spring is connected with the shell, the PID controller is electrically connected with the three-way force sensor and used for controlling the magnitude of current of the electromagnetic coil in real time, the rub-impact head extends out of the shell and is arranged to be away from the end of the electromagnetic coil, the hydraulic damper is arranged to provide constant abutting force for the rub-impact head, and the problem that the rub-impact head retracts is solved; the current of the electromagnetic coil can be controlled in real time through the PID controller, so that the adsorption force of the electromagnetic coil to the permanent magnet is adjusted, and the stability of the rub-impact force is ensured.

The invention discloses a three-phase intelligent disconnecting switch fuse group, which relates to the technical field of circuit protection and comprises an emergency protection circuit device, a three-phase disconnecting switch module, a fuse module, an intelligent control module and a base. According to the invention, the efficiency and reliability of circuit protection can be significantly improved through a three-stage cascade architecture, the optical fiber current sensor and the millimeter wave radar temperature measurement module are integrated by using the multi-physics field coupling detection unit, accurate real-time monitoring of current, temperature and arc characteristics is realized, the sensitivity and accuracy of fault detection are enhanced, and the fault detection efficiency and reliability are improved. The deep learning trigger judgment unit adopts a CNN-LSTM hybrid network, dynamically optimizes a protection threshold and effectively deals with a complex and changeable circuit environment, and the electromagnetic driving emergency processing mechanism adopts a strong magnetic field electromagnet driving technology, so that quick response and efficient execution are ensured, the fault processing time is further shortened, the stability and safety of the system are improved, and the reliability of the system is improved. And the effect of emergency circuit protection is achieved.

A relay 1 comprises a first fixed contact 7,15 (figure 1), a contact arm 8 having a first movable contact 9,14, and an electromagnetic drive unit 2 having an armature 3 and a yoke 4. A connector 10 (f