246 results about "Electromagnetic vibration" patented technology

The invention relates to an AI server cooling water pump vibration quantity self-adaptive calibration test method and system, an intelligent test platform integrates a six-dimensional force sensor and a temperature compensation vibration exciter, the platform rigidity is automatically calibrated, a water pump-pipeline system transfer function is obtained, and a rotating speed-lift-modal frequency three-dimensional mathematical model is established; a three-axis MEMS accelerometer array is arranged at sensitive parts such as a water pump bearing seat and a motor shell, and vibration, current and pressure signals are synchronously collected; carrying out time-frequency domain signal processing by adopting variational mode decomposition in combination with self-adaptive S transformation, and extracting a 128-dimensional full-frequency domain feature vector containing a modulation side frequency band; effective values of vibration acceleration, speed and displacement are calculated through a frequency domain integration algorithm, and current harmonic interference is corrected through an electromagnetic vibration compensation model; and finally, a vibration health degree evaluation model containing 18 characteristic parameters is established based on a support vector machine, the test system comprises an intelligent test platform unit, a multi-source sensing unit, an edge calculation unit and a data management unit, and microsecond-level synchronous acquisition and GB-level data throughput are realized through a time sensitive network. And online incremental learning and automatic generation of a test report are supported. The method has the effect of improving the water pump vibration quantity test precision.

The invention provides a rotor iron core, a permanent magnet motor and an inverter compressor, and relates to the technical field of motor and compressor design and manufacture, the rotor iron core comprises uniformly distributed permanent magnet grooves, a groove is arranged between two adjacent permanent magnet grooves, each groove extends inwards along the radial direction of the rotor iron core, parallel magnetic bridges are arranged between the grooves and the permanent magnet grooves, and the permanent magnet grooves are connected with the parallel magnetic bridges. A first magnetic barrier groove, a second magnetic barrier groove and a third magnetic barrier groove which are symmetrically distributed are formed in the two sides of the top of each permanent magnet groove respectively, a first arc and a second arc are arranged on the outer side of the rotor core above the magnetic barrier grooves, the second arc intersects with the side edge of the groove, and permanent magnets with alternating magnetism are embedded in the permanent magnet grooves. The radius Rr of the outer side of the rotor iron core, the distance ho from the middle point of the bottom of the permanent magnet groove to the center point of the rotor iron core and the thickness hm of the permanent magnet meet the condition that (Rr-ho) / hm is larger than 2 and smaller than or equal to 3.4. By reasonably arranging the position and the size of the magnetic barrier groove, magnetic circuit distribution can be changed, magnetic flux leakage can be reduced, the power density of the motor can be increased, and electromagnetic vibration noise of the motor and the compressor can be reduced.

The multi-directional controllable suspension system comprises a linear electromagnetic vibration reduction assembly and an arc-surface electromagnetic vibration reduction assembly, when the multi-directional controllable suspension system is used, when a vehicle frame at the lower end vibrates vertically, a first guide rod moves in the axial direction of an outer cylinder, and a cylindrical electromagnetic coupling unit fixed to the first guide rod moves between an outer permanent magnet array and an inner permanent magnet array; when the vehicle body inclines laterally or twists, the outer cylinder rotates around the hinged point of the outer cylinder and the lower end vehicle frame, the cambered surface electromagnetic coupling unit is driven to deflect between the upper permanent magnet array and the lower permanent magnet array, the gradient magnetic field is cut to generate resistance moment, and vibration is reduced. The first elastic piece and the second elastic piece provide elastic restoring force for the upper permanent magnet array and the lower permanent magnet array correspondingly to cooperatively inhibit side inclination and torsion, so that multi-dimensional vibration reduction in the horizontal direction is achieved, and the dynamic stability of the vehicle is improved.

The invention discloses a rapid calculation method for electromagnetic vibration of a permanent magnet synchronous motor, and belongs to the technical field of electromagnetic field calculation. According to the method, a magnetic potential and magnetic conductance method is innovatively combined with an improved sub-domain method, the problem of complexity of electromagnetic field distribution of a nonlinear material is effectively solved through the magnetic potential and magnetic conductance method, and the capture precision of electromagnetic field changes is remarkably improved by dividing a computational domain into a plurality of sub-domains through the improved sub-domain method. According to the method, the influence of the tangential electromagnetic force wave and the harmonic current is fully considered, and high-precision calculation of the electromagnetic force can be realized. On the basis, a stator core shell equivalent theoretical model is established, the inherent frequency of the stator is calculated by adopting an energy method, and the accuracy of the model is verified through a modal experiment. Furthermore, by determining the frequency response function of the stator in the low-order mode, the acceleration spectrum and electromagnetic force wave distribution of the prototype stator in each mode are obtained based on the linear superposition principle. Compared with a traditional electromagnetic-structure coupling finite element model, the method has the advantages that the calculation efficiency is remarkably improved while the calculation precision is guaranteed, the calculation time is shortened by 59.3%, and efficient and reliable technical support is provided for optimization design of electromagnetic equipment.

The invention discloses a prebaked anode production material conveyor and a control method, and relates to the technical field of prebaked anode production, the prebaked anode production material conveyor comprises a conveyor main body, and the conveyor main body comprises an inner-layer conveying pipe and an outer-layer cooling jacketed pipe coaxially arranged outside the inner-layer conveying pipe; an electromagnetic vibration exciter; the electromagnetic vibration exciter is arranged below the conveyor body and fixedly connected with the inner-layer conveying pipe through a rigid connecting piece, and the feeding module and the discharging module are located at the starting end and the tail end of the conveyor body respectively. The material characteristic identification sensor group is arranged in the feeding module; and the central control system is electrically connected with the material characteristic identification sensor group and the electromagnetic vibration exciter. Safety and environmental protection are guaranteed through a full-sealing structure and an active heat dissipation technology, efficient and general conveying of multi-form materials is achieved through material recognition and self-adaptive vibration control, and continuity and reliability of production are guaranteed in combination with an online self-cleaning system.

The invention discloses an electromagnetic vibration table for an uncooled infrared machine core assembly adopting multiple sensors, and relates to the technical field of vibration tables. By arranging four groups of vibration testing mechanisms of low frequency, intermediate frequency, high frequency and ultrahigh frequency, vibration waves of different frequencies can be synchronously or alternately generated, complex operation conditions of the uncooled infrared movement in real environments such as transportation jolting, mechanical shock and high-frequency vibration can be simulated, and vibration testing of different vibration frequencies can be performed on a plurality of uncooled infrared movement assemblies at the same time. Wherein the low-frequency vibration testing mechanism and the intermediate-frequency vibration testing mechanism can simulate low-frequency vibration in a transportation process, the high-frequency vibration testing mechanism can simulate high-frequency noise interference in operation of the uncooled infrared movement, and the ultrahigh-frequency vibration testing mechanism can simulate an instantaneous impact working condition of the uncooled infrared movement in an extreme environment. Therefore, each uncooled infrared movement to be tested can undergo vibration tests in various modes, full-band coverage tests are realized, and the accuracy and credibility of test results are greatly improved.

The invention discloses a process for preparing a high-strength aluminum alloy profile through gradient cooling die-electromagnetic vibration combined extrusion, and belongs to the technical field of aluminum alloy machining. According to the technology, the uniform fine grain structure and high performance of the aluminum alloy profile are achieved through the design of the length of a die working tape and the flow gradient of a cooling channel in cooperation with an electromagnetic vibration device. After a blank is subjected to homogenization treatment, the blank is extruded through a gradient cooling die, a thin-wall area working zone is 20-25 mm, the cooling water flow is 15-20 L / min, a thick-wall area working zone is 10-15 mm, the cooling water flow is 5-10 L / min, 20-50 Hz electromagnetic vibration is applied at the same time, water mist quenching and aging treatment are conducted immediately after extrusion, zinc ions serve as heterogeneous nucleation cores to promote generation of new crystal grains, ferrocene sulfenyl is adsorbed to the surfaces of the crystal grains to inhibit growth, and the thickness of the crystal grains is 10-15 mm. The average grain size is refined, and the effect is improved.

The invention relates to the technical field of steel member detection, and discloses a steel member bearing test and anticorrosive coating adhesive force detection table which comprises a workbench, a positioning clamping assembly is arranged in the middle of the top side of the workbench, a horizontal adjusting assembly is arranged at the bottom of the workbench, and pushing assemblies are arranged at the left ends of the front side and the rear side of the top of the workbench. A bearing loading mechanism is arranged in the middle of the upper end of the pushing assembly, and an auxiliary assembly is arranged at the right end of the top of the workbench. Through the integrated design of the detection table, the integrated operation of the bearing test of the steel member and the adhesive force detection of the anticorrosive coating is realized, and the detection efficiency is greatly improved; in the load-bearing loading mechanism, a hydraulic cylinder I and an integrated electromagnetic vibrator work cooperatively, static load can be provided, dynamic vibration can be superposed, load data can be monitored in real time in combination with a pressure sensor, the stress state of the steel member under complex working conditions can be accurately simulated, and diversified load-bearing test requirements are met.

The invention relates to the technical field of submersible pump testing, and discloses a permanent magnet variable frequency submersible pump testing method and system. The method comprises the following steps: acquiring an original response signal cluster of the submersible pump in multi-stage variable-speed operation by constructing an integrated test environment; decoupling and enhancing the signal cluster based on time sequence dependence, and separating out an independent hydraulic performance characteristic signal group and an independent electromagnetic vibration characteristic signal group; and inputting the characteristic signal group into a dynamic working condition simulator, and restoring an internal flow field pressure cloud picture and a rotor stress distribution picture of the submersible pump under the simulated working condition through an iterative approximation algorithm. The two are fused to deduce a potential failure mode and its evolution trajectory, and an enhanced test procedure is generated accordingly. According to the method, accurate separation of multi-physics field test signals and visualization of internal states are realized, and the accuracy of fault attribution and the advance of failure prediction are improved.

The invention relates to the technical field of transformers, in particular to a voltage regulating transformer which comprises a machine shell, a cover plate and a voltage transformation device, two transverse plates are arranged at the bottom of the voltage transformation device, grooves are formed in the bottoms of the two transverse plates, and clamping seats movably connected with the two grooves are movably arranged in the machine shell. According to the voltage regulating transformer, the L-shaped rods, the extrusion plates and the grooves of the transverse plates are dynamically matched, and the L-shaped rods and the extrusion plates are cooperatively operated with the shaking adjusting mechanisms, so that the voltage regulating transformer has the advantages that the voltage regulating effect of the voltage regulating transformer is improved, and the voltage regulating transformer is convenient to use and high in practicability. A multi-stage buffer system is constructed between the transformer core element and the shell, in the aspect of vibration isolation, when electromagnetic vibration is transmitted to the fixed inclined block through the clamping base and the movable inclined block, vertical vibration is converted into horizontal displacement through the inclined plane structure, and external mechanical impact can be effectively attenuated through spring damping.

The invention discloses an industrial internet data acquisition system which comprises a data acquisition terminal, a multi-protocol adaptive conversion module, a real-time data processing engine, a distributed redundancy storage module, a data transmission module, a central control module, a modular expansion interface, an anti-interference optimization module and a power management module. According to the invention, the anti-interference optimization module and the anti-interference design of each module effectively reduce the influence of electromagnetic, vibration, temperature and other interferences on the system in the industrial environment, so that the system can stably operate in the complex industrial environment, the data acquisition is more accurate and reliable, and the system is more suitable for the actual industrial use scene; the distributed redundancy storage module adopts a multi-node storage architecture to ensure redundancy storage of data, and data transmission adopts a 5G + wired dual-transmission mode, so that the reliability of data transmission and storage is improved, and the risk of data loss and errors is reduced.

The utility model provides an electromagnetic vibration type slimming machine which comprises a lower bottom plate, a first upper cover shell and a second upper cover shell, the first upper cover shell and the second upper cover shell can move in the vertical direction relative to the lower bottom plate, and the first upper cover shell and the second upper cover shell are arranged adjacently. A first electromagnetic vibration assembly is installed between the first upper cover shell and the lower bottom plate, and a second electromagnetic vibration assembly is installed between the second upper cover shell and the lower bottom plate. Each of the first electromagnetic vibration assembly and the second electromagnetic vibration assembly comprises an electromagnetic coil fixedly connected with the lower bottom plate and a magnetic conductive seat fixedly connected with the corresponding upper housing, and an annular magnetic gap with an opening in the lower end is formed in each magnetic conductive seat; the electromagnetic coil is located on the lower side of the magnetic conductive base, and the upper end of the electromagnetic coil is arranged in the annular magnetic gap. The electromagnetic vibration type slimming machine overcomes the defects that an existing slimming machine is of a mechanical vibration structure, so that the amplitude cannot be adjusted, and impact on a human body is large.

The utility model relates to power supply engineering technical field discloses a power supply system installation engineering pipeline structure, including lower half pipeline, one side of lower half pipeline is hinged with upper half pipeline through hinge, upper half pipeline forms the closed cylindrical pipeline structure with lower half pipeline, and the inside of lower half pipeline and upper half pipeline is provided with damping spring. This power supply system installation engineering pipeline structure, through setting damping spring, support backing plate and shock absorbing rubber pad, can effectively buffer and absorb the electromagnetic vibration that cable produces in the operation process because of the current change, when cable vibrates, the vibration is transmitted to shock absorbing rubber pad first, and shock absorbing rubber pad absorbs part of energy initially, then through support backing plate, the rest vibration is transmitted to damping spring, and damping spring further buffers the vibration, reduces the damage of vibration to pipeline and cable, prolongs the service life of cable and pipeline, reduces the noise produced because of vibration simultaneously.

This utility model discloses an active electromagnetic vibration damping device for a portable oxygen concentrator compressor, including a housing. A connecting wire is inserted into a clamping block, and the other end of the connecting wire is electrically connected to a control system. A permanent magnet is fixedly connected to the middle of the upper end of the compressor, and a vibration displacement sensor is installed on one side of the upper end of the compressor. One end of the vibration displacement sensor is electrically connected to the control system, and the control system is electrically connected to a PLC controller. This portable oxygen concentrator compressor active electromagnetic vibration damping device can form a closed-loop magnetic field area with the permanent magnet through three sets of distributed electromagnetic coils. Vibration displacement can be detected by the vibration displacement sensor, allowing for real-time vibration cancellation through active electromagnetic control technology. Support pads can be used for auxiliary vibration damping, resulting in better performance. Furthermore, the support base frame and support feet can be adjusted for height via support rods and lifting slots, offering excellent adaptability.

The application discloses a double-coil structure electromagnetic damping nonlinear vibration isolator, which comprises a rigid structure and a damping structure matched with each other; the damping structure comprises a top cover, a first left limiting part, a first right limiting part, a first magnetic material, a first coil, a second right limiting part, a base, a second coil, a second left limiting part, a second magnetic material, a base connecting shaft and a part connecting shaft; the first left limiting part, the second left limiting part, the first right limiting part and the second right limiting part are arranged on the base. The nonlinear electromagnetic vibration isolator has the characteristics of damping nonlinearity, adjustable damping and function conversion, and the reliability problem of the ordinary nonlinear vibration isolator under the working condition of low-frequency large amplitude vibration is solved through the damping end, so that the vibration isolator has a better vibration isolation effect under the low-frequency working condition.

The application provides a power management adaptive feedback regulation method and system with a wide voltage input range. In the application, the output current ripple waveform of the power supply is collected, wavelet packet decomposition is performed to extract the energy distribution of the characteristic frequency band, and the dynamic offset characteristics of the energy distribution with the wide voltage input fluctuation are used to identify the load change mode. The electromagnetic vibration caused by the current ripple is captured and converted into recovered electrical energy, which is directly supplied to the feedback circuit to realize energy self-supply. The recovered electrical energy is introduced into the ripple injection inverting proportional circuit, the gain coefficient and phase offset are dynamically set according to the load mode, and the inverting ripple signal is generated. The inverting ripple signal is superimposed on the feedback voltage to offset the ripple fluctuation by dynamically tracking the ripple amplitude change caused by the wide voltage input. Finally, the response speed of the rectifier tube driving timing is adjusted according to the input voltage fluctuation amplitude, and the optimized feedback control signal is generated. The application realizes the load fluctuation compensation and energy recovery closed loop.

The invention relates to a locking type steel wire thread insert vibration test clamp device and a vibration test method, which are suitable for vibration examination of a locking type steel wire thread insert in a free state in an aero-engine. The device comprises a clamp base body, a bolt connecting hole, an O-shaped groove and an induction block. The clamp base body is rigidly connected with the electromagnetic vibration table through a bolt, the O-shaped groove is used for installing a steel wire thread insert test piece, the induction block is made of piezoelectric crystal materials, and when the steel wire thread insert vibrates to reach the set amplitude, the induction block is contacted to generate induction current to drive the induction lamp or the ampere meter to display. The test method comprises seven steps of system connection and preparation, parameter setting and starting, vibration amplitude monitoring, amplitude adjustment, assessment state confirmation, vibration assessment execution and test ending. Through a closed-loop control system formed by an external source signal generator and a laser displacement sensor, single-degree-of-freedom fixed-amplitude vibration in a non-resonance state is realized, the amplitude control is accurate, overload is avoided, parallel testing of multiple test pieces is supported, the test efficiency is improved, the method is closer to actual working conditions, and the method has higher engineering application value.

The application discloses a kind of motor electromagnetic vibration characteristic testing devices of stator and rotor separation.The device includes bottom plate and stator, rotor, bearing seat, sensor system, coupling and auxiliary power device on it, and the stator shell of stator is connected with bottom plate only by the stator support at both ends of stator;Rotor both ends have detachable mass for adjusting unbalance;Rotor is fixed on bearing seat by bearing, bearing seat is fixed on bottom plate, and there are gasket and guide key between bearing seat and bottom plate;Rotor displacement sensor of sensor system is used to detect the position of rotor, Hall sensor and PCB magnetic sensor are used to detect the space-time characteristics of stator core surface magnetic field, and stator vibration sensor is used to measure the vibration of stator;Auxiliary power device provides original power or applies load for rotor.The application can be used to obtain electromagnetic exciting force between motor stator and rotor air gap, and various eccentric states of motor rotor can be simulated comprehensively.

The application discloses a hybrid permanent magnet structure design method for reducing vibration of a permanent magnet motor, and solves the problem of excessive vibration of the permanent magnet motor. The method is to adopt two or more kinds of permanent magnet materials with different residual magnetism densities, adopt appropriate parameters to combine into a required hybrid permanent magnet, and magnetize the hybrid permanent magnet with the maximum residual magnetism density during magnetization. After the permanent magnet motor adopts the hybrid permanent magnet structure, the harmonic content of the permanent magnet magnetic field can be significantly reduced, the sinusoidal degree of the motor air gap magnetic field is improved, and then the low space order radial electromagnetic force density generated by the action of the permanent magnet magnetic field is weakened, the electromagnetic vibration of the motor is reduced, and the problem of excessive vibration of the motor is obviously improved.

This invention provides a novel vibration fatigue testing method for gas turbine blades. Addressing the problems of large specimen wear, long testing time, and limited results associated with traditional step-and-step stress loading methods for obtaining blade fatigue limits, this invention excites blade resonance on an electromagnetic vibration table using novel step-and-step stress loading techniques on identical blade specimens. While retaining the step-and-step matching standard, when limited test data cannot meet the matching requirements, a stress "concession" method is rationally applied based on the turbine blade structure and fatigue strength level to eliminate test data with significant stress deviations, thereby obtaining the median fatigue strength of blades from the same batch. This invention makes stress matching faster and more flexible, requiring only 2-3 stress levels to achieve a test fitting result with a confidence level of over 95%, demonstrating high accuracy. This method is applicable to fatigue limit tests of all gas turbine blades.

The invention relates to the technical field of motor control, and discloses a rotor vibration suppression method based on outer air gap radial force of a stator partition magnetic regulation motor, which comprises the following steps of: 1, obtaining an inner and outer layer air gap accurate magnetic conductance model according to a conformal transformation method; 2, constructing two new rotor structures for inhibiting the radial force of the outer air gap of the motor; step 3, analyzing the reason for suppressing the low-order radial force amplitude of the outer air gap of the stator partitioned magnetic field modulation motor by the new rotor structure; and 4, establishing a multi-physical field structure model, and simulating the vibration performance of the stator partitioned magnetic field modulation motor with different rotor structures. According to the method, a magnetic conductance-magnetomotive force model is established to analyze the flux density-radial force harmonic waves of the stator partitioned magnetic field modulation motor, it is clear that dominant radial force harmonic waves for generating main electromagnetic vibration are distributed according to outer air gap radial force distribution characteristics of the stator partitioned magnetic field modulation motor, and a rotor of a surface and internal auxiliary groove structure is provided; and the radial force amplitude existing in the outer air gap is effectively inhibited.

The utility model relates to the technical field of screening machinery, and provides an electromagnetic vibration dewatering screen which comprises a pair of bottom frames and a shell, the shell is arranged on the bottom frames, a spraying assembly is arranged on the top of the shell, a vibration dewatering assembly is arranged on the top of the shell, and feeding assemblies are arranged at the two ends of the shell. The top frames are fixed to the top of the shell, a pair of vibration motors are arranged on the tops of the top frames, dewatering meshes are formed in the two surfaces in the shell, and a pair of drainage covers are arranged at the bottom of the shell. By means of the technical scheme, the problems that in the related technology, due to the fact that materials are vibrated in the screen box only through the vibration effect of a vibration motor, the material conveying speed is low, the materials at the position of a material inlet are likely to be accumulated, the thickness of the materials is large when the materials are conveyed, and the dewatering effect and speed are affected are solved.

The application relates to a multi-aperture imaging space remote sensing target positioning optical system and a calibration method, and relates to the field of remote sensing and aerospace imaging optical instruments. The application solves the contradiction between the requirements of a large field of view and high resolution imaging of a traditional single-aperture optical imaging system, and realizes accurate positioning of a target to meet the intelligent requirements of a multi-aperture optical imaging system. The multi-aperture imaging space remote sensing target positioning sub-aperture imaging optical system comprises an electromagnetic vibration mirror, a beam-reducing telescope group, a fast reflection mirror and a rear focusing mirror group. The beam-reducing telescope group and the rear focusing mirror group are connected through the fast reflection mirror, and the light beam is connected with an imaging branch through the electromagnetic vibration mirror. After the imaging light beam passes through the telescope system, the imaging light beam is reflected by the fast reflection mirror and focused on a detector to form an image. The application is also suitable for a mobile platform for fast positioning and high-precision capturing of a dynamic target in the field of industrial precision machining and space remote sensing.

The application provides a kind of seed adding device with adjustable working parameters, seed adding method and whole disk air suction type seed metering device, including vibrating seed tank, electromagnetic vibrating seed feeder and horizontal screw conveyor, and total control system.The vibrating seed tank includes fixed support, screen box mounted on the fixed support, first armature fixed on the outer bottom of the screen box shell, and first electromagnetic exciter mounted on the fixed support and located directly below the first armature.The application selects appropriate working parameters according to the physical properties of seeds, outputs working signals to the sine signal generating circuit through the host computer, so that the sine wave signals generated by the sine signal generating circuit are received by the first electromagnetic exciter and generate corresponding magnetic field changes, so as to effectively control the working parameters of the screen box, improve the screening efficiency, and effectively protect the seeds.

The invention discloses a method and a device for full-automatic rapid granulation and dry pressing forming, and belongs to the technical field of powder pressing forming. Granulating the powder through electromagnetic vibration, and transferring the granulated powder to full-automatic dry-pressing molding equipment by using a mechanical arm for dry-pressing molding to obtain a green body with a designed shape; according to the invention, rapid full-automatic forming of multi-batch powder of small samples can be realized, technical support is provided for high-throughput all-solid-phase reaction experiment preparation, efficient and rapid design development or screening of materials is promoted, and meanwhile, a new way is provided for preparation of high-performance materials.

The application discloses a multifunctional high-speed laser cladding device, which comprises a laser, an acoustic emission detection device, an infrared monitoring device, a powder feeding device, a CCD high-speed camera, a heat treatment device and an electromagnetic vibration device; the laser is located at the center of the device; the acoustic emission detection device, the infrared monitoring device and the CCD high-speed camera are arranged on one side of a molten pool; the powder feeding device is arranged above the laser and comprises a powder feeding turntable and a powder feeding pipeline; the heat treatment device moves synchronously and in the same direction with the powder feeding nozzle; and the electromagnetic vibration device is arranged at the lowermost part of the device. The application can monitor the cladding process in multiple aspects in real time, and can simultaneously perform heat treatment, so that the cladding quality is improved.

The utility model discloses a strap type vibration sputum excretion device, which belongs to the technical field of sputum excretion devices and comprises a shell, a wearable component is arranged on the front side of the shell, a massage groove is formed in the front side of the shell, massage cloth is fixedly connected to an inner cavity of the massage groove, and a movable seat is slidably connected to the inner cavity of the shell. A driving assembly used for driving the moving seat to move is installed at the top of the shell, connecting seats are fixedly connected to the two sides of the moving seat, and electromagnetic vibrators are installed on the surfaces of the connecting seats; through the arrangement of the wearing assembly, the whole device can be worn on the back of a patient, the back of the patient can be vibrated and massaged through the matched use of the electromagnetic vibrator and the massage head, and in the massage process, the massage head can be driven to move up and down along the back of the patient through the arrangement of the driving assembly; through the arrangement of the vibration massage device, the vibration massage device has the advantage that the vibration position can be moved in the using process.

The utility model provides a dry quenching poisonous and harmful gas discharge system which comprises a dry quenching furnace, a belt vestibule, a belt conveyor assembled in the belt vestibule, an interlocking signal protection device and a central control room, wherein a coke discharge port is formed in the bottom of the dry quenching furnace, and a flat valve is arranged in the coke discharge port; the lower part of the coke discharge port is connected with an electromagnetic vibration feeder, a discharge port of the electromagnetic vibration feeder is connected with a feed port of a rotary sealing valve, and a discharge port of the rotary sealing valve is connected with a coke discharge chute; linkage protection is added when running signals of the environment dust removal fan of the coke dry quenching device are lost, the axial flow fan is started to replace gas in the vestibule of the belt conveyor, the concentration of poisonous and harmful gas is reduced, the audible and visual alarm reminds people to evacuate in time through voice, personal injury accidents are avoided, the safety of workers is protected, operation is convenient, and the working efficiency is improved. The maintenance cost is low, and the applicability is wide.

The invention relates to a fiber foreign matter sorting machine which comprises a foreign matter collecting system used for collecting and conveying foreign matters; the discharging assembly is used for generating and accumulating electrostatic charges; the electromagnetic vibration feeder is used for conveying materials; the electromagnetic vibration feeder comprises a conveying channel, a mounting opening and an adhesive tape opening are formed in the conveying channel, and the discharging assembly is located on the mounting opening. The foreign matter collecting system comprises a rack, an unwinding roller and a winding roller, the unwinding roller and the winding roller are arranged on the rack, an adhesive tape roll is arranged on the unwinding roller, and an adhesive tape on the adhesive tape roll penetrates through an adhesive tape opening to be connected with the winding roller. The fiber foreign matter sorting machine has the following advantages that fiber foreign matters in graphite powder are subjected to electrostatic sorting, and the separation effect is good; the sorting operation is carried out in the conveying channel, so that the conveying of the materials and the sorting of fiber foreign matters are synchronously carried out, and the working efficiency is high; the adhesive tape surface is adopted to adhere fiber foreign matters, the collection effect is good, and the removal efficiency is high.