353 results about "Linear vibration" patented technology

The invention relates to a low-frequency vibration isolator with a wide quasi-zero stiffness interval. The low-frequency vibration isolator comprises a bearing platform, a base, a first negative stiffness assembly, a second negative stiffness assembly and a linear vibration isolation assembly. The bearing platform and the base are arranged in parallel and are both provided with bolt holes and limiting holes; a linear vibration isolation assembly is installed between the bearing platform and the base. The first negative stiffness assemblies are symmetrically distributed with the center point connecting line of the bearing platform and the base as the symmetry axis. The top of the first negative stiffness assembly is connected with the bearing platform, and the bottom of the first negative stiffness assembly is connected with the base. The two ends of the second negative stiffness assembly are connected with the two first negative stiffness assemblies correspondingly. The low-frequency vibration isolator has the characteristics of high static rigidity and low dynamic rigidity, the contradiction between the bearing capacity and the vibration isolation performance of a linear vibration isolation system is effectively solved, and the effective low-frequency vibration isolation effect on a vibration-isolated object is achieved while the bearing capacity of the vibration isolator is guaranteed.

The invention discloses a high-precision linear vibration feedback motor system, and relates to the technical field of precise electromagnetic driving, and the system comprises a core driving module which is a moving magnet type linear motor of a Halbach array magnetic circuit structure, and is integrated with a multi-physics field sensing unit; the dynamic parameter tracking module is used for acquiring a reed rigidity coefficient, a damping coefficient and a magnetic constant in real time when the motor runs, and establishing a dynamic displacement model based on a recursive least square method; a double-closed-loop control framework is adopted, an inner loop adopts field-oriented control, and an outer loop is based on model prediction control; the aging prediction unit activates a temperature rise compensation algorithm when the accumulated number of vibration times is greater than a set threshold value; the self-adaptive calibration engine is used for injecting a sweep frequency excitation signal when the system is started, and automatically compensating individual difference parameters according to the harmonic peak offset; and the digital twin mapping unit is used for establishing a real-time mapping relationship between the physical parameters of the motor and the virtual model, and dynamically correcting the model parameters by comparing the actual displacement with the model displacement.

The invention discloses an intelligent vibration isolation control method and system based on vibration monitoring, and the method comprises the steps: collecting vibration data, carrying out the preprocessing, carrying out the fuzzy conversion according to the preprocessed data, and calculating a preliminary control quantity; constructing an optimization model and defining a target function, using a locust optimization algorithm to iteratively optimize the population position until the target function value converges, and using the initial control quantity as the final optimization model input to obtain the final control quantity; driving force signals are calculated based on the final control quantity, a difference equation is further constructed based on accumulation of the driving force signals, then a predicted value is output, conversion is carried out according to the obtained predicted value, and instantaneous data are obtained. According to the method, efficient adaptive control over a complex nonlinear vibration system is achieved, the optimization process is rapidly converged, the target function optimization result is directly used for dynamic adjustment of the control quantity, the time for calculation of the control quantity is remarkably shortened, the future vibration trend is predicted through a difference equation, and the calculation efficiency is improved. And the dynamic response capability is further improved.

The invention discloses a motor control method of oral care equipment and a related device thereof. The oral care device comprises a motor, and the motor comprises a rotor. Acquiring a driving signal; controlling the rotor to perform reciprocating vibration relative to a reference axis based on the driving signal, and controlling the position of the reference axis to change so as to enlarge the coverage range of the vibration; the vibration comprises linear vibration or rotary vibration; wherein the driving signal is a preset signal. In this way, the vibration coverage range of the rotor is remarkably enlarged, and the oral cavity cleaning effect is improved.

The invention discloses a method and a system for detecting an antibacterial coating micro guide wire. The method comprises the following steps: applying a composite stress field to a guide wire to obtain stress distribution data; determining a stress response abnormal area according to the stress distribution data and applying dual-frequency vibration excitation to obtain nonlinear vibration response data and vibration energy dissipation data; force-sensitive fluorescent molecules are applied to the stress response abnormal area for treatment, and conformational changes of the stress response abnormal area are monitored to obtain preliminary spatial distribution data of the microcracks; injecting a multi-ion fluorescent tracer into the micro-crack area, and monitoring the migration rule of the multi-ion fluorescent tracer to obtain pH value distribution data and oxidation-reduction potential distribution data; bacterial suspension with specific fluorescence response is injected into the micro-crack area, and antibacterial activity evaluation data is obtained by monitoring the fluorescence response of the bacterial suspension. According to the technical scheme, the microcracks on the surface of the antibacterial coating micro guide wire are accurately detected and positioned, and the influence degree of the microcracks on the antibacterial function can be accurately evaluated.

The invention discloses an automatic energetic solid tablet filling device which comprises a tablet feeding mechanism, a tablet discharging mechanism, a tablet conveying mechanism, a tablet conveying mechanism, a tablet conveying mechanism, a tablet conveying mechanism, a tablet conveying mechanism and a tablet conveying mechanism. The tablet feeding mechanism is installed on a rack and used for conveying energetic solid tablets in a vibration mode; the mold transferring assembly is mounted on the rack and used for achieving movement of the densely-arranged molds in the horizontal direction and the vertical direction; and the close-packed mold is mounted on the mold transfer assembly and used for storing the energetic solid medicine particles. The tablet feeding mechanism comprises a vibration tray, a linear vibration feeding mechanism, a filling mechanism and an orbital transfer mechanism. Compared with the prior art, the energy-containing solid medicine particle automatic filling equipment realizes energy-containing solid medicine particle automatic filling, solves the problems of high risk and dense operators in energy-containing material filling, and improves the overall safety of equipment and personnel in the equipment production process by matching with the safety design of an electrostatic detection system, a dust removal system and the like.

The utility model provides a base damping device of a vacuum vibration press, which belongs to the technical field of damping and comprises a moving table and a damping component arranged at the top of the outer wall of the moving table, and the damping component comprises a damping seat, an auxiliary frame, a mounting frame, a damper, an angle frame, a limiting frame, a resistance reducing wheel, a supporting seat, a buffer spring and a limiting frame. The auxiliary frame is fixedly arranged at the corner of the bottom of the outer wall of the damping seat, and the limiting frame is embedded in the inner wall of the auxiliary frame. The damping assembly and a buffer spring form a rigid-flexible damping structure through a damper, high-frequency vibration can be absorbed at the same time, rapid energy consumption through damping can be achieved, low-frequency vibration can be elastically buffered through the spring, dynamic adjustment is achieved through a resistance reduction wheel, the resistance reduction wheel rolls in a limiting frame, impact force is dynamically dispersed in cooperation with a supporting base, stress concentration is avoided, and the service life of the damping assembly is prolonged. The rolling design of the resistance reduction wheel converts linear vibration into rotating kinetic energy, and direct damage of transverse impact to the structure is reduced.

The invention discloses an intelligent ring for a blind person, relates to the technical field of travel assistance for the blind person, and aims to solve the problem that an existing travel auxiliary tool for the blind person cannot provide comprehensive and timely travel assistance for the blind person, the intelligent ring comprises a wearing ring and a protection ring which are used for forming the ring, and is characterized in that a storage cavity is formed between the wearing ring and the protection ring; a 360-degree ultrasonic sensor array, a high-precision microprocessor, four groups of linear vibration feedback modules, a low-power-consumption Bluetooth 4.0 module and a rechargeable lithium battery are arranged in the accommodating cavity; the 360-degree ultrasonic sensor array comprises four sets of micro sensors which are located on the front side, the rear side, the left side and the right side of the containing cavity respectively, and the range of a single set of micro sensors is 120 degrees, so that all-directional coverage of the surrounding 360-degree space is achieved, and the blind can sense obstacles from all directions. The method has the advantage that the blind user can comprehensively and timely obtain the travel information.

An efficient multiphase-flow graded-separation, concentration, and purification system for argillaceous sandstone uranium ore includes a hydraulic tossing washing and scattering pretreatment device, a high-frequency linear vibration grading device, a first-stage multiphase-flow swirling grading device, an energy-gathering ultrasonic scrubbing device, a second-stage multiphase-flow swirling grading device, a high-frequency linear vibration dewatering device, an efficient uniform-mixing and activating system and a conditioning and pressing dewatering system. The present disclosure implements intensive mud-sand stripping of crushed argillaceous sandstone uranium ore, fine graded-separation of material, and efficient uniform-mixing and activating and deep efficient dewatering of fine-particle argillaceous material. Finally, four types of core material of coarse sand material, fine sand material, dry tailings residue and a high-concentration uranium ore leaching solution are formed through continuous work. Efficient multiphase-flow graded-separation, concentration and purification of the argillaceous sandstone uranium ore are implemented, and an intensive extraction rate of uranium ore resources is improved.

The invention relates to the technical field of fatigue tests, and discloses a vibration device for a fatigue test of a passenger ropeway carriage, the vibration device comprises a support control positioning mechanism and a height control positioning mechanism, the middle position of the support control positioning mechanism is connected with a vibration adjustment positioning mechanism, and the support control positioning mechanism comprises a positioning frame; a positioning column is fixedly arranged at the bottom end of the positioning frame, a fixing frame is fixedly arranged at the bottom end of the positioning column, and a plurality of supporting legs are fixedly arranged at the outer end of the fixing frame. The vibration mechanism can move along a square track, so that reciprocating linear vibration or rotating circular vibration is realized; due to the multidirectional vibration capability, the test working condition is closer to the actual operation scene, and the accuracy of fatigue life evaluation is improved; the vibration mechanism supports multidirectional movement and can simulate complex vibration working conditions caused by passenger walking, goods unbalance loading and the like, and the working condition coverage of the test is remarkably improved.

The invention provides a coupled vibration analysis method for a tungsten wire rope in a silicon single crystal pulling system, and belongs to the technical field of silicon single crystal growth of integrated circuits. The method comprises the following steps: constructing a lifting model of a tungsten wire rope in a silicon single crystal lifting system, and obtaining various lifting parameters of the tungsten wire rope; constructing a nonlinear vibration equation of the tungsten filament rope by utilizing the Hamiltonian principle according to each lifting parameter; and performing discretization processing on the nonlinear vibration equation by using a Galerkin method to obtain a linear vibration equation, solving the linear vibration equation, and obtaining a coupled vibration analysis result of the tungsten wire rope by using a solving result. The vibration suppression of the silicon single crystal pulling system can be realized, and the quality of the silicon single crystal is improved.

The invention relates to the technical field of automatic equipment, in particular to automatic pre-embedding equipment for pins and plastic parts, which comprises an injection molding machine main body, one side of the injection molding machine main body is provided with a robot pedestal, the upper end of the robot pedestal is provided with a six-axis robot, and the output end of the six-axis robot is matched and butted with a material taking clamp; a mounting table is arranged on one side of the six-axis robot, a pre-burying assembly is arranged at the upper end of the mounting table, and the pre-burying assembly comprises a pin pre-burying mechanism and a circular plastic part pre-burying mechanism. Through the synergistic effect of the vibration disc assembly and the straight vibration rail assembly, automatic sorting and conveying of pins and circular plastic parts are achieved; and by combining the precise actions of the six-axis robot and the material taking clamp, the pre-embedding speed is greatly increased, the problem of low manual operation efficiency is solved, manual intervention is reduced through the full-automatic process, and the labor cost is reduced.

The utility model discloses a frequency-adjustable linear vibrator which comprises a shell with a movable cavity inside, an air inlet guide rod penetrating through the shell and extending into the movable cavity, and a piston arranged on the air inlet guide rod in a sleeved mode and arranged in the movable cavity, and the movable cavity is divided into an upper cavity and a lower cavity through the piston. An upper air inlet channel capable of being communicated with the upper cavity and a lower air inlet channel capable of being communicated with the lower cavity are formed in the piston, and an air inlet of an air conveying channel in the air inlet guide rod is alternately communicated with the upper air inlet channel and the lower air inlet channel along with the reciprocating motion of the piston in the movable cavity. Each group of exhaust holes comprises an upper exhaust hole and a lower exhaust hole which are respectively communicated with the upper chamber and the lower chamber, in addition, a sealing device is correspondingly arranged in each group of exhaust holes, and during application, the opening number of the exhaust holes can be set through the sealing devices, so that the exhaust efficiency of the upper chamber and the lower chamber is influenced; and the application purpose that the vibration frequency of the piston can be adjusted can be achieved.

The invention provides a linear vibration motor which comprises a shell, a rotor, a stator and an elastic part, the rotor and the stator are accommodated in the shell at an interval, the elastic part is used for elastically suspending the rotor in the shell, and the stator is fixed in the shell and used for driving the rotor to vibrate; the rotor comprises two groups of magnetic steels which are arranged in parallel at intervals; the stator comprises a coil which is arranged between the two groups of magnetic steel and is spaced from the two groups of magnetic steel in the first direction, the winding plane of the coil is parallel to the vibration direction of the rotor, and the two opposite ends of the coil in the second direction are fixed to the two opposite sides of the shell respectively; the first direction, the second direction and the vibration direction of the rotor are perpendicular to each other. According to the linear vibration motor, the magnetic lines of force can be completely closed through the design of the double magnetic steels, so that the driving efficiency of the stator for driving the rotor is improved.

The invention discloses a bone conduction sleep pillow based on audio vibration analysis, which comprises a sleep pillow body, an integrally formed pillow back is arranged in the middle of the rear side of the sleep pillow body, and bone conduction loudspeakers are arranged on both sides of the top of the sleep pillow body; electromagnetic linear vibration assemblies are arranged at the tops of the sleep pillow body and the pillow back, and driving signals of the electromagnetic linear vibration assemblies directly come from audio low-frequency electric signals; the integrated processor comprises a Bluetooth audio processing system and has the functions of real-time frequency division and vibration signal extraction; and the power supply system provides electric energy for the sleep pillow. The two bone conduction loudspeakers are symmetrically distributed about the central axis of the sleep pillow body. By means of the processor, low-frequency components (20-150 Hz) in music signals are directly analyzed to drive the vibrator, vibration and music rhythm synchronization is achieved, and by means of the bone conduction loudspeaker, composite biomechanical stimulation is formed by a bone conduction sound field (50-4000 Hz) and low-frequency vibration.

The utility model relates to the technical field of vibration motors, and discloses a horizontal linear vibration motor, which comprises a shell with an accommodating space, a vibrator assembly and a stator assembly, the vibrator assembly and the stator assembly are vertically accommodated in the accommodating space at intervals, and the shell comprises a cover plate fixed with the stator assembly and an upper shell fixed with the vibrator assembly. An accommodating space is defined by the upper shell and the cover plate; the vibrator assembly comprises a cuboid mass block with a mounting groove, and a magnetic steel assembly fixed on the mass block and embedded in the mounting groove; the stator assembly comprises first auxiliary magnetic steel fixed on the cover plate and a coil arranged around the first auxiliary magnetic steel; second auxiliary magnetic steel is fixedly arranged at the position, corresponding to the first auxiliary magnetic steel, of the upper shell. The magnetic steel assembly comprises a first magnetic steel and a second magnetic steel which are arranged in parallel left and right, and a third magnetic steel and a fourth magnetic steel which are clamped between the first magnetic steel and the second magnetic steel and are stacked up and down corresponding to the position of the first auxiliary magnetic steel. The six-magnetic-steel structure of the vibration motor not only effectively reduces the stress of the elastic piece, but also has stronger vibration sense.

The invention relates to a working condition following gear wear monitoring and predicting method based on a vibration signal, belongs to the technical field of gear transmission, and solves the problem that influence of different working conditions and different wear states of different positions of a gear cannot be considered in gear wear monitoring and prediction in the prior art. Comprising the following steps: S1, establishing a working condition Map graph based on dynamic working condition division of multi-source sensor fusion, and updating the working condition Map graph in real time; s2, establishing an Archard wear correction model, and calculating the wear extent of the gear; s3, establishing a gear nonlinear vibration model considering wear and clearance influence, and solving a vibration signal of a gear system; s4, a CNN-LSTM mixed wear diagnosis model is established, and training is carried out; and S5, acquiring and processing in real time to obtain a vibration signal of the gear system, and inputting the vibration signal into the CNN-LSTM mixed wear diagnosis model to obtain the current wear state probability distribution of the gear and the wear development trend prediction of the gear.

The present application provides a linear vibration motor, including a casing, a stator and a vibrator accommodated in the casing, and an elastic member for suspending the vibrator in the casing. The vibrator includes a mass block having a through-hole, and a magnetic circuit system. The magnetic circuit system includes a first magnetic steel arranged on one side of the stator and a second magnetic steel arranged on the other side of the stator. The first magnetic steel and the second magnetic steel are extended in parallel and arranged centrally symmetrically around a geometric center of the stator. The first magnetic steel includes a first magnetic steel portion, and the second magnetic steel includes a second magnetic steel portion. The asymmetric magnetic circuit structure can improve the nonlinear vibration when the stator is offset during the arrangement, which is helpful for improving the stability and yield of the test.

The utility model belongs to the technical field of vibration motors, and particularly relates to a foam structure, a linear vibration motor and electronic equipment, the foam structure is used for the linear vibration motor, the linear vibration motor comprises a shell and a vibrator assembly supported in the shell through a metal elastic sheet, and the linear vibration motor comprises a foam body, the foam body comprises a bottom wall and two opposite side walls, and a through groove parallel to the two side walls is formed between the two side walls; wherein one side wall is used for being connected with an oscillator assembly, the through groove is used for being clamped on a metal elastic piece, and the foam structure abuts against the metal elastic piece through the groove bottom of the through groove so as to be adaptively positioned in the non-vibration direction. By means of the structure, the assembly consistency of the foam structure can be achieved, and then the performance consistency of the linear vibration motor is guaranteed.

An ultrasonic surgical tool system with a tip capable of simultaneously vibrating in plural modes. The system includes a console capable of supplying a drive signal to the tip that includes plural components. Each component has a frequency characteristic that is based in part on the equivalent of current through the mechanical components of the tip. The frequency components are different from each other. Based on the application of drive signal the tip undergoes non-linear vibrations.

The invention discloses a low-frequency double-nonlinear quasi-zero-stiffness energy harvesting vibration isolator, and belongs to the technical field of nonlinear vibration control and energy harvesting. Comprising a supporting frame, an upper platform and a lower platform are horizontally installed on the supporting frame, and two vertical optical shafts are symmetrically installed and penetrate through the upper platform and the lower platform; the loading platform is used for bearing a vibration-isolated object and is mounted on the upper platform; the nonlinear negative stiffness structure is a bionic skeleton X-type mechanism arranged between the upper platform and the lower platform and provides negative stiffness restoring force; the non-linear positive stiffness structure is connected with the non-linear negative stiffness structure in parallel and provides restoring force which is non-linearly changed along with displacement; the energy harvesting unit comprises a copper film arranged on the inner side face of the supporting frame and a polytetrafluoroethylene film arranged on the outer side face of the upper platform, and the copper film and the polytetrafluoroethylene film form a friction nanometer generator. The problems that in the prior art, energy harvesting and ultralow-frequency vibration isolation energy harvesting cannot be carried out in a wider working frequency band are solved, and the vibration isolation energy harvesting efficiency can be effectively improved.

The application discloses a full-automatic rubber band discharging structure and a working method thereof, relates to the technical field of discharging, and comprises a rotary screening device, a linear vibration device and a vibrating disc device. The linear vibration device comprises a linear vibrator arranged on a machine table and a vibrating seat mounted on the linear vibrator. Linear guide grooves are formed in the vibrating seat. The rotary screening device is arranged above the linear guide grooves and is in brushing cooperation with the upper end surface of the rubber band. The sliding friction between the rotary screening device and the rubber band is greater than the sliding friction between the linear guide grooves and the rubber band. The material channel comprises a first feeding part, a screening part and a second feeding part which are sequentially and mutually connected. The application preliminarily screens materials through the screening part, and the rotary screening device performs secondary screening, so that the finally conveyed rubber band better meets the production standard, the screening quality is improved, the overall production stability of the application is better, and the application has the advantages of reasonable structure design, convenient use, high production efficiency and the like.

The utility model belongs to the technical field of vibration generators, and relates to a linear vibration motor and electronic equipment, the linear vibration motor comprises a housing, a vibrator assembly accommodated in the housing, and a stator assembly and an electromagnetic damping member which are fixedly connected with the housing and used for driving the vibrator assembly to vibrate; the magnetic circuit system comprises at least two pieces of side magnetic steel and at least one piece of center magnetic steel, the magnetizing directions of the two adjacent pieces of side magnetic steel are opposite and perpendicular to the vibration direction, the center magnetic steel is clamped between the two adjacent pieces of side magnetic steel, and the thickness of the center magnetic steel is smaller than that of the side magnetic steel in the first direction. The center of gravity of the central magnetic steel is closer to the electromagnetic damping piece than the center of gravity of the side magnetic steel, the magnetizing direction of the central magnetic steel is parallel to the vibration direction, and the polarities of the ends, close to each other, of the central magnetic steel and the two adjacent side magnetic steel are the same. The structure not only can improve the electromagnetic damping effect, but also can maintain the magnetic field intensity on one side of the coil.

The invention relates to the technical field of new energy automobiles, and discloses a new energy automobile bolt firmware anti-vibration performance testing device and method.The new energy automobile bolt firmware anti-vibration performance testing device comprises a base, a vibration table, an upper testing plate and a lower testing plate, and the upper testing plate and the lower testing plate are connected through a to-be-tested bolt; vibration mechanisms are arranged on the front side, the right side and the bottom of the vibration table, each vibration mechanism comprises a linear vibration motor, a connecting column and a connecting disc, a plurality of U-shaped claws are fixedly installed on the outer side of each connecting column, and the U-shaped claws are movably connected to the outer sides of the connecting discs in a sleeving mode. The device is reasonable in design, multidirectional dynamic loading is achieved through the three-dimensional independent vibration simulation technology, the three linear vibration motors are combined with the U-shaped claw flexible connection structure, independent vibration of the vibration table in the front-back direction, the left-right direction and the vertical direction can be accurately controlled, and a multidimensional vibration scene under the complex road condition in the new energy automobile running process is effectively reproduced.

The invention discloses a functional gradient coating cone-cylindrical shell high-temperature vibration dynamics modeling and analysis method. The method comprises the following steps: establishing a linear vibration analysis model and a nonlinear vibration model considering temperature and amplitude dependence; identifying material parameters of the functional gradient coating-composite material combined shell and determining a corresponding fitting coefficient; preparing a functional gradient coating, coating the conical-cylindrical shell matrix structure with the functional gradient coating, and measuring geometric and material parameters of the matrix and the coating; building a high-temperature vibration test system, and measuring the dynamic response characteristics of the test piece under normal-temperature and multi-temperature working conditions; the theoretical model is verified based on an experimental test result, and a mechanism of influence of key parameters on the dynamic performance of the functionally gradient coating cone-cylindrical shell structure in a high-temperature vibration environment is further researched. The method has the advantages that calculation is easy and convenient, precision is high, a reliable theoretical tool is provided for thermal shock resistance design and life prediction of the structure in the extreme environment, and service safety and reliability are remarkably improved.

The application discloses a material distribution assembly, which comprises a conveying seat, a sliding piece, a first connecting piece, a blocking piece and a first driving unit. A first conveying channel is formed in the conveying seat, and the first conveying channel is used for conveying materials. The sliding piece is arranged on the conveying seat in a sliding mode. The first connecting piece is connected with the sliding piece. One end of the blocking piece is arranged at an outlet of the first conveying channel, and the other end of the blocking piece is connected with the sliding piece through the first connecting piece. The first driving unit is arranged on the conveying seat and connected with the sliding piece, and is used for driving the sliding piece to slide on the conveying seat, so as to drive the blocking piece to open or close the outlet of the first conveying channel. The material distribution assembly realizes the function of outputting a certain amount of materials each time. The application also discloses a direct-vibration conveying line comprising the material distribution assembly and a feeding device comprising the direct-vibration conveying line.

High-speed rail is used for automatic pipe production line of insulating steel, the production line includes steel supply system, insulating pipe supply system, pipe system, heat shrinkage furnace system, the steel supply system includes stock bin frame, the steel distribution device and the steel distribution device are installed in turn after the stock bin frame, the insulating pipe supply system includes the vibration disc of insulating pipe sequencing, the vibration disc is set on the machine table, the outlet of vibration disc is connected with linear vibration guide, the pipe system includes pipe carrier, steel pushing device installed on the side of pipe carrier, insulating pipe positioning and shaping die set installed on the pipe carrier. The production line realizes the automation of heat shrink tube production.

The invention relates to a coaxial rotating eccentric vibrator. A hydraulic motor drives two groups of eccentric blocks capable of reversely rotating around the same axis to rotate, and inertia force generated by rotation of the eccentric blocks is synthesized to enable a rotating shaft to generate linear vibration in a certain radial direction. The device is composed of a hydraulic motor 1, a flange plate 2, a box body 3 and an internal excitation part. A shaft output spline hole 17 of the hydraulic motor 1 is connected with a shaft head spline of the rotating shaft 5, and the hydraulic motor 1 is fixed to the box body 3. The flange 2 is fixed at the bottom of the box 3. The tool can be installed on the flange plate 2 to form a vibration tool for use. The vibrator can also be installed on other machinery equipment through the flange plate 2 to be used as a vibration source. The machine is compact in structure, easy to manufacture, concentrated in inertia force and suitable for the field with the requirement for linear vibration of inertia.

A motor control method for an oral care device and a related apparatus thereof. The oral care device comprises a motor (120). The motor (120) comprises a mover (301). The motor control method comprises: acquiring a driving signal, controlling, on the basis of the driving signal, the reciprocating vibration of the mover (301) relative to a reference axis, and controlling the position of the reference axis to change, so as to increase the coverage range of the vibration, wherein the vibration includes linear vibration or rotary vibration, and the driving signal is a predetermined signal. The coverage range of the vibration of the mover (301) is significantly improved. As a result, the oral cleaning effect is improved.

The utility model relates to the technical field of linear vibration screening machines, in particular to a linear vibration screening machine. The linear vibration screening machine comprises a linear vibration screening machine body, a sliding groove is formed in the left side of a machine frame of the linear vibration screening machine body, a supporting frame is arranged in the sliding groove, a screen is arranged on the inner side wall of the supporting frame, a positioning hole is formed in the right side of the sliding groove, and a magnetic block is arranged in the positioning hole. A handle is arranged on the left side of the supporting frame, and two sets of inserting holes are evenly formed in the top of the handle in a penetrating mode. The grab handle is moved upwards to drive the inner threaded sleeve and the plug pin to move upwards, after the hand-screwing bolt is aligned with the locking hole, the hand-screwing bolt can be rotated to be screwed into the locking hole, the plug pin is separated from the locking hole, and then the handle is moved leftwards to drive the supporting frame to be communicated with the screen to move leftwards synchronously to be separated from the linear vibrating screen machine. In this way, the effect of quickly disassembling the supporting frame and the screen is achieved, and then the use convenience of the device is improved.