67 results about "Mechanical dynamics" patented technology

The invention discloses an online test method for a characteristic parameter of a bearing-rotor system. The online test method comprises the steps of: installing a signal acquisition system on the bearing-rotor system supported by a sliding bearing; regulating the rotation speed of a main shaft, and starting a drive motor and a signal acquisition instrument; acquiring vibration signals of specific positions in real time by an eddy current displacement sensor, and storing the vibration signals by the signal acquisition system; establishing a bearing-rotor system model by adopting a finite element method; and applying a characteristic parameter optimization method of the bearing-rotor system based on combination of machinery dynamics modeling with a genetic algorithm to ensure that a theoretical vibration state obtained through the simulation model is close to an actual measurement value, thereby realizing online solving of the rigidity and damping coefficient of the sliding bearing, the off set of a rotor and the like of the bearing-rotor system. Compared with the traditional method, the online test method disclosed by the invention has the obvious advantages that external excitation or multiple machine start / stop does not need to be performed on the bearing-rotor system, and the online test method is simple and reliable and has the characteristics of high efficiency, high stability and high precision.

The invention belongs to the technical field of mechanical dynamics, and relates to a determination method for the inherent frequency of a rotor-blade coupled system. The determination method saves the cost of a sensor, an amplifier and a display or record instrument needed by experimental tests and can obtain the higher-order inherent frequency and the inherent frequency in a rotating state. The inherent frequency of the rotor-blade coupled system can be obtained just by modifying the structural size of the system without repeated modeling, the bending and torsion influence on a complex stepped rotating shaft of the coupled system, the gyroscopic effect of a shaft and a disc, centrifugal rigidifying, rotary softening and the Coriolis force influence on blades are considered so that a more accurate result can be obtained; in addition, imbalance responses, blade tip rub-impact and other faults of the rotor-blade coupled system can be analyzed, so that the system structure is optimized.

The invention relates to a redundant parallel robot system. The redundant parallel robot system is characterized by comprising a static platform, wherein four drive motors are fixedly arranged on the static platform; the four drive motors are in common connection with a controller; each drive motor is fixedly connected with a driving lever respectively; each driving lever is connected with a driven lever through a revolute pair to form a branched chain respectively; each driven lever is fixedly connected with a sensor respectively; and each sensor is in common connection with a moving platform through a revolute pair respectively. The redundant parallel robot system has the advantages of simple structure, large work space, high stiffness and high dynamic property, and can be used for manufacturing a plurality of types of mechanical equipment such as manipulators, machine tools, experimental platforms for researching force control and the like, so the redundant parallel robot system has a wide application prospect and a development potentiality in the fields of machining, assembly, mechanical kinetics scientific research and the like.

An apparatus and method to isolate downhole components within a downhole tool from shock and vibration typically experienced during handling and use of the downhole tool. The apparatus and method include a series of interlocking hooks and loops that are bondable to the downhole component and dampingly secure the downhole component within the downhole tool. The material comprising the interlocking hooks and loops is a high temperature material whose performance is not affected by high temperatures.

The embodiment of the invention provides a method and system for adjusting the amplitude of a speaker diaphragm. The method comprises the steps of: first determining an electrodynamic model and a mechanical dynamic model of a speaker through relevant parameters of the speaker; determining the expression of a S domain / Z domain transfer function of the speaker according to the electrodynamic model and the mechanical dynamic model; predicting the amplitude of a speaker diaphragm through the expression of the S domain / Z domain transfer function of the speaker; and adjusting the gain of the speakersuch that the predicted amplitude of the speaker diaphragm does not exceed a physical limit value of the speaker diaphragm. The method and the system adjust the gain of the speaker in advance by predicting the amplitude of the speaker diaphragm, thereby preventing the amplitude of the speaker diaphragm from exceeding the physical limit value, and ensuring that the speaker obtains the largest possible volume without being damaged. Moreover, there is no need for additional processing of the speaker, no need to measure current in real time, so the method and the system have advantages of low cost and lower speaker battery loss.

The invention relates to the technical fields of machinery dynamics and vibration measurements, in particular to a super-miniature rotor dynamic balancing measuring method and equipment for complementing the super-miniature rotor dynamic balancing measuring method. The method includes the following steps: (1) arranging a damping device on a bearing device, wherein the damping device is a single freedom degree damping device, and arranging the bearing device at the position of a resonance point of a dynamic balancer through a bearing piece; (2) arranging a to-be-tested super-miniature rotor on the bearing device; (3) driving and connecting a motor for the to-be-tested super-miniature rotor; (4) starting the dynamic balancer and the motor; (5) adjusting a damping coefficient of the damping device, stiffness of the bearing device, and balance revolving speed of the to-be-tested super-miniature rotor so as to enable resonance frequency and amplitude of the to-be-tested super-miniature rotor to reach a set value; (6) measuring a vibration signal of the to-be-tested super-miniature rotor and then after the vibration signal is amplified, analyzed and processed, transmitting the vibration signal to a computer; and (7) obtaining a measured result processed by the computer. The method and the equipment can achieve measurement to dynamic balance of the super-miniature rotor under the lower speed.

The invention belongs to the technical field of mechanical dynamics, and particularly relates to a method for calculating time-varying mesh stiffness of a bevel gear pair. The method includes: S1, acquiring basic parameters of the bevel gear pair; S2, separating a bevel gear pair model into N independent and uniform laminar straight gears along a tooth width direction; S3, determining whether the N laminar straight gears participate in meshing or not at the meshing position j; S4, calculating the time-varying mesh stiffness for every laminar straight gear; S5, summing the time-varying mesh stiffness of all the laminar straight gears to obtain the time-varying mesh stiffness of the bevel gear pair. The method for calculating the time-varying mesh stiffness of the bevel gear pair has the advantages that nonlinear contact is taken into consideration, influences of base body stiffness and extended meshing are corrected, an analyzing model is improved, and calculating precision is improved.

The invention discloses an automatic blue-green algae finishing boat, which mainly comprises a suction head A, an algae-water separation device B and a drive device C. The suction head A is provided with a buoy, a water pump and a prolate nozzle; the algae-water separation device B is provided with a filtering net, a net frame, an eccentric shaft and a bearing; and the drive device C is provided with a motor (or small internal-combustion engine), a transmission wheel belt, a motor boat and a water outlet pipe groove; the algae-rich water flowing out of the prolate nozzle 6 rushes into the filtering net 8, and under the effect of vibration force, the water can flow through the net holes and falls into the water outlet pipe groove 3, while the algae is blocked by the net holes and thrown toward the direction of vibration resultant force to fall into the boat; and a baffle 20 can block sporadic algae. As the eccentricity of the eccentric shaft is relatively small and the speed can be regulated according to the strength of the algae-rich water, the energy-save measures such as mechanical kinetics are comprehensively used, the power consumption during the use is relatively low, and the problem of blocking the net holes during suction is solved; moreover, automatic and fast algae-water separation is realized during the algae collection, the product is small, the efficiency is high, the operation is simple, the labor is saved and the cost is greatly reduced, and therefore the automatic blue-green algae finishing boat is blue-green algae finishing equipment with reasonable and scientific comprehensive performance.

The invention belongs to the technical field of mechanical dynamics, and particularly relates to a gear pair abrasion loss prediction method based on dynamic meshing force, which comprises the following steps: S1, acquiring basic parameters of a gear pair; S2, calculating the time-varying meshing stiffness and static load distribution coefficient of the worn gear pair according to the acquired basic parameters of the gear pair and a gear tooth bearing contact analysis method; S3, introducing the time-varying meshing stiffness obtained through calculation into a gear rotor system dynamic modelto calculate a dynamic meshing force and a dynamic load distribution coefficient of the gear pair; and S4, adopting an Archard wear theory, a wear coefficient empirical formula, the dynamic meshing force of the gear pair and the dynamic load distribution coefficient to calculate and obtain the tooth surface wear loss of the gear pair. According to the gear pair abrasion loss prediction method based on the dynamic meshing force, prediction efficiency and prediction precision are both considered.

The invention provides an industrial robot design and verification-oriented simulation platform and method. The platform comprises a mechanism kinematics design module used for building a kinematics model of an industrial robot and performing analysis on working space, operability and end errors of the industrial robot, a mechanical dynamics design module used for building a dynamics model of theindustrial robot, selecting and configuring a load inertia ratio of the industrial robot and performing analysis on a joint stress of the industrial robot, a control system design module used for establishing a design motion control algorithm and a force and moment control algorithm, and a track planning simulation module used for performing planning and simulation on a path track of the industrial robot. The integrated design of the robot can be realized, so that the research development design efficiency and quality of the robot are effectively improved.

The invention belongs to the technical field of mechanical dynamics, and particularly relates to a meshing characteristic analysis method of stripping bevel gear pair which is corrected by considering substrate rigidity. According to the method, firstly the gear tooth of a bevel gear pair is divided into N independent and uniform thin-sheet straight gears in the tooth width direction, and based on the known stripping size and position parameters, the stripping condition of each straight gear is determined; through a potential energy method, a finite element substrate rigidity correction coefficient is introduced to calculate the time-varying meshing rigidity of each single stripping straight bevel gear; based on ANSYS software parameterized programming, a three-dimensional finite element stripping bevel gear contact model is established, the time-varying meshing rigidity is solved and obtained, and analysis and comparison with an analysis method result are conveniently achieved. Based on an analysis and finite element solution method, the influence of the stripping width ws, the stripping length as, the stripping axial position and the stripping tooth-direction position on the bevel gear time-varying meshing rigidity is analyzed, and the influence of axial multi-stripping and tooth-direction multi-stripping on the bevel gear meshing rigidity is considered at the same time.

The invention belongs to the technical field of mechanical dynamics, and particularly relates to a bolt connection cylindrical shell structure frequency response function uncertainty analysis method with a flange. According to the method, eight-node degradation shell unit is adopted, and a kinetic model of bolt connection flange-cylindrical shell is established through a finite element method; bolt connection is simulated through discretizing modeling by using a spring unit, and the effectiveness of the built model is verified through a modal test; the uncertainty of the bolt connection stiffness is considered, the frequency response function interval range when the connection stiffness in five directions under a cylindrical coordinate system is an uncertainty parameter is solved based ona Chebyshev polynomial agent model and an interval analysis method, and under the deterministic inherent frequency, the Monte-Carlo sampling method is used for solving the frequency response functioninterval range, and the solving precision and efficiency of the two methods are compared; and finally, the multi-parameter uncertainty system frequency response function interval range is solved.

The invention belongs to the technical field of mechanical dynamics, and particularly relates to an aviation pipeline modeling and vibration characteristic analysis method considering bolt connection.The method comprises the following steps: establishing an entity contact finite element model constrained by a pipeline clamp, and correcting the elasticity modulus of a pipeline through a free modaltest to obtain a corrected pipeline model; Carrying out simulation calculation on the inherent frequency under the set tightening torque, and verifying the simulation calculation by adopting a modaltest and a basic excitation response test; And analyzing the rule of the influence of the bolt tightening torque, the clamp span and the pipe body length on the inherent frequency of the double-clamppipeline system. According to the method, a finite element contact model is adopted and is combined with a test to carry out comparative study, and the modeling method is accurate in calculation result and conforms to the actual structure.

The invention provides a wind magnetic suspension cabin suspension control method which aims at a nolinear wind cabin suspension system with strong interference and heavy suspended matter and can reasonably divide a control task from interference suppression. The method includes the steps that cabin suspension is divided into two parts including suspension mechanical dynamics and converter currenttracking, the suspension mechanical dynamics completes suspension air gap control and sets converter suspension current reference, and the converter current tracking completes suspension current reference tracking; the suspension mechanical dynamics adopts a suspension steady-state controller and an interference compensator to complete suspension current reference setting in a coordinated manner;and the converter current tracking adopts a current tracking steady-state controller and a self-adaption counter electromotive force compensator to cope with influences of counter electromotive forcechanges caused by suspension air gap fluctuation and converter parameter changes caused by suspension temperature rise on current tracking in a coordinated manner. The wind magnetic suspension cabinsuspension control method improves the steady state performance and the interference suppression capability of the cabin suspension system, and lays a foundation for wind alignment of wind turbine cabin yaw.

The invention discloses an active and passive vibration reduction device based on piezoelectric ceramics and a six-degree-of-freedom vibration reduction system, and belongs to the technical field of mechanical dynamics. The active and passive vibration reduction device comprises a load connector, active and passive vibration reduction mechanisms, a middle mass block, a speed sensor, a piezoelectric ceramic actuator, a displacement amplification mechanism, a foundation platform and a controller; one end of the passive vibration reduction mechanism is connected with the load connector, and the other end of the passive vibration reduction mechanism is connected with the middle mass block; the lower part of the middle mass block is connected with the displacement amplification mechanism; the speed sensor collects the movement speed of the middle mass block and feeds back a speed signal to the controller, and the controller calculates a voltage signal applied to the piezoelectric ceramic actuator according to the speed signal so as to enable the piezoelectric ceramic actuator to generate deformation displacement in the horizontal direction; and the displacement amplification mechanism converts the horizontal displacement into vertical displacement and drives the middle mass block to realize vibration reduction. According to the active and passive vibration reduction device, an active control system and a passive vibration reduction system are combined, so that the device can effectively restrain low-frequency resonance and isolate low-frequency vibration and has a good high-frequency vibration reduction effect.

The invention discloses a method for dynamically correcting and calculating the meshing stiffness of a straight gear under a fluctuation load working condition, and belongs to the technical field of mechanical dynamics. The method comprises the following steps: synthesizing time-varying meshing stiffness of a transmission gear pair in a gear transmission system under a constant load working condition by using an energy method, calculating average meshing stiffness of each pair of gear pairs, substituting the average meshing stiffness into a bending-torsion coupling model of the gear transmission system, and loading an external fluctuation load to solve transverse vibration and torsional vibration responses of the system; analyzing the influence of transverse vibration and torsional vibration responses on the actual meshing state of each transmission gear pair under the fluctuation load working condition; and the straight gear meshing stiffness under the external fluctuation load working condition is dynamically corrected. The method has the advantages that the actual meshing state of the straight gear pair is reflected more truly; different from a traditional straight gear meshingstiffness calculation method, the method considers that the center distance, the meshing angle and the coincidence degree of a meshing gear pair are changed instead of being constant, and the method is closely related to the vibration state of a driving wheel and a driven wheel.

The invention discloses a portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device, and belongs to the field of rock mechanics and dynamics indoor test measurement. The portable self-seal rock SHPB test confining pressure loading device is characterized in that an oil inlet and an exhaust opening are formed in a cylinder of a confining pressure device, cover plates are arranged at two ends of the cylinder, concentric circular holes with equal sizes are formed in the centers of the cover plates, the diameters of the concentric circular holes can be changed according to the sizes of test rock samples, double U-shaped synthetic rubber sleeves are arranged in the cylinder, spaces between the sleeves and the cylinder are filled with hydraulic oil, and the test rock samples are arranged in the double U-shaped synthetic rubber sleeves. The portable self-seal rock SHPB test confining pressure loading device has the advantages that hydraulic oil self-seal principles are adopted for integral systems, the oil inlet is connected with a loading system by a high-pressure oil pipe, and internal confining pressures of the cylinder can be monitored via theloading system in real time; radial stable confining pressures higher than 100 MPa can be applied by the portable self-seal rock SHPB test confining pressure loading device in a short time, strain gauges can be adhered with the rock samples, the rock samples can be led out from the circular holes in the cover plates by wires, deformation procedures of rock under impact load can be monitored in real time, the systems are easy to operate and convenient to carry, the confining pressures are stable, and the like.

The invention discloses a multi-objective optimization design method for dynamic characteristics of a feeding system. The multi-objective optimization design method comprises the following steps: (1)establishing rigidity and flexibility-electromechanical coupling feed system dynamic characteristic simulation analysis model; (2) determining initial parameter setting of multi-objective optimizationof the rigidity and flexibility-electromechanical coupling feed system dynamic characteristic simulation analysis model; (3) obtaining test sample points in a design variable range by using a full factor design method; (4) constructing a nonlinear input / output mapping rule between the multi-objective optimization design variable based on the BP neural network and the dynamic characteristic evaluation index; (5) optimizing rigidity and flexibility by using a cyclic approximation optimizing technology of a genetic algorithm; and the dynamic performance evaluation index of the electromechanicalcoupling feeding system is used for obtaining the Pareto optimal solution of the dynamic performance evaluation index of the feeding system. According to the method, control parameter characteristicsand mechanical and dynamic characteristics of a feeding system and the influence law of the coupling effect between the control parameter characteristics and the mechanical and dynamic characteristicsare explored.

The invention relates to a simulation and test device for the complex working condition of a wind turbine planet gear, and belongs to the field of mechanical design and mechanical dynamics. The simulation and test device comprises a flat base, a motor controller, a servo motor, two diaphragm couplings, an eddy current sensor assembly, a signal collector, an acceleration sensor assembly, a magnetic powder brake controller, a magnetic powder brake and a vibration table. A motor output shaft is connected with a to-be-simulated planet gear input shaft through the first diaphragm coupling, and a planet gear output shaft is connected with the magnetic powder brake through the second diaphragm coupling. All the parts are fixed to the flat base. The signal collector is connected with the electric eddy sensor assembly and the acceleration sensor assembly through signal lines. The electric eddy sensor assembly is arranged on an input shaft test plane and an output shaft test plane, and the acceleration sensor assembly is arranged on a planet gear box test plane. The simulation and test device is simple in structure and high in simulation accuracy of the complex working condition of the wind turbine planet gear.

A timing device of hybrid power that drives a movement of and functions as an auxiliary unit having a power supply to deliver power in time to an electro-magnetically driving unit through an automatic control s unit manipulated by a mechanical kinetics storage status detection unit to produce mechanical kinetics; and a main spring barrel or a potential difference weight of the kinetics storage unit being driven to further drive a wheel chain of the timing device and automatically suspend driving upon the completion of winding the wheel train.

The invention discloses a mechanical-electric-magnetic-control combined simulation method for pure electric vehicle powertrain. The method comprises the following steps: 1) establishing a motor electromagnetic model, a motor control strategy model, a motor driving circuit model and a three-dimensional model of a mechanical powertrain; 2) setting the real-time data exchange relationship among the models; 3) performing simultaneous operation of mechanical-electric-magnetic control and real-time data extrange to realize mechanical-electric-magnetic-control combined simulation of the powertrain; 4) obtaining the required powertrain signal. The invention improves the existing simulation method; an electromagnetic field, motor slot and other structures, motor control strategy and mechanical dynamics characteristics are fully reflected in the pure electric vehicle powertrain system model, reflecting more dynamic dynamics phenomenon, so that the results of combined simulation are closer to theactual situation, and the method make up the defect of the existing combined simulation method in which mechanical and electromagnetic and electric control are carried out separately, which is not inaccordance with the actual facts.

The invention discloses a robust finite time control method of a permanent magnet synchronous motor servo system, with input saturation constraints. The robust finite time control method includes thefollowing steps: establishing a mechanical dynamic model of the permanent magnet synchronous motor servo system; and designing an anti-saturation finite time sliding mode control law. The invention provides a robust finite time control method with input saturation constraints, for solving the problem of tracking and control of the permanent magnet synchronous motor servo system has a non-linear nondeterminacy factor of model parameters and input saturation constraints. The robust finite time control method of a permanent magnet synchronous motor servo system achieves the effect of short adjusting time and high robustness, and can effectively eliminate the adverse influence of input saturation constraints on the system tracking control performance.

The invention discloses a rotary blade-box rub-impact force determining method and belongs to the technical field of machinery dynamics. The method includes the following steps of establishing a function equation Ue+Uc=W between a blade and a box at a certain moment according to the conservation law of mechanical energy; establishing the force equilibrium relation between the blade and the box and obtaining the expression of the radial force Fn in the position of a blade tip; decomposing the blade tip radial force Fn according to the normal direction and the tangential direction of the blade tip according to the bending deformation of the blade, wherein -FL=-Fncos[v'(L,t)], and -FT=Fnsin[v'(L,t)]; and finally, composing the stress on the blade tip.

The invention provides a clearance space-contained manipulator simulation device and relates to a simulation device, particularly a clearance space-contained manipulator simulation device. The device solves the problem in the prior art that no special simulation device for studying the influence of a spatial manipulator gear backlash on the mechanical dynamics is available. The device comprises a test bench, an air-floating platform, an arm rod, a mass-adjustable load mechanism, a base, and three joints. One end of the arm rod is connected with the base through one joint. The base is fixedly mounted on the test stand. The other two joints are mounted on the arm rod. The other end of the arm rod is connected with the mass-adjustable load mechanism. The mass-adjustable load mechanism and the lower ends of the other two joints are respectively provided with one air-floating mechanism. The mass-adjustable load mechanism and the other two joints are capable of floating on the air-floating platform through air-floating mechanisms. The device of the invention belongs to the field of aerospace.

The invention provides a bolt connection cylindrical shell structure dynamic characteristic calculation and analysis method, and belongs to the technical field of mechanical dynamics. The method comprises the following steps: establishing a cylindrical shell energy equation according to a plate-shell theory; establishing a load excitation equation according to the external load condition; establishing a bolt connection mechanical equation according to the bolt connection characteristics; solving bolt connection equivalent stiffness and equivalent damping according to first-order Fourier decomposition; accurately expressing different load characteristics through component force in each vibration displacement direction; obtaining a forced vibration differential equation of the bolt connection cylindrical shell structure through a Lagrange equation; and solving the dynamic characteristics of the bolted connection cylindrical shell structure by applying an incremental harmonic balance method. The method starts from the establishment of a bolted connection equivalent mechanical model, is applied to a cylindrical shell structure, achieves the solving of the vibration response according to the demands of different actual working conditions, simplifies the modeling and calculation process, is high in precision, is high in universality, and the like.

The invention discloses a device and a method for testing dynamic contact kinetic parameters between a silk yarn package and a contact roller. The invention relates to the field of polyester filamentproduction equipment and mechanical dynamics. According to the testing device and method, in the rotating state, the dynamic contact rigidity and the contact damping value between a package and a contact roller are tested according to the mechanical dynamics principle. A spindle shaft package and a contact roller are driven by a servo motor to rotate, an air cylinder is adopted for pressurizing tokeep the contact roller in contact with the package and have certain contact pressure, an electric vibration table is adopted for providing system exciting force, vibration signals of the package andthe contact roller are tested respectively, and dynamic contact rigidity and contact damping are calculated and obtained. The dynamic contact stiffness and the contact damping value under different rotating speeds, different package diameters and different contact pressures can be accurately tested. The defects of inaccurate design parameters, access of analysis results and actual measurement andthe like caused by long-term use of static rigidity and damping and even use of estimated parameters to design a winding system are overcome.

The invention belongs to the technical field of machinery dynamics, and particularly relates to a simple pendulum and a rapid attenuation method for swinging of the simple pendulum. The rapid attenuation method for swinging of the simple pendulum comprises the following steps: establishing a simple pendulum model; establishing a kinetic equation of the simple pendulum with a movable slider; acquiring a movement path of a slider which can attenuate swinging of the simple pendulum according to the direction and magnitude of geostrophic force on the slider during movement; acquiring the ratio ofacceleration and deceleration motion time for movement of the slider or the time of a path in total movement time or the path according to a function conversion relation of the slider when the slidermoves in a certain range; and acquiring the movement range and movement time of the slider by quantitatively analyzing equivalent damping ratio generated by movement of the slider. The real process ofmovement of the slider is analyzed, slider movement which has the best effect on inhibition of swinging of the simple pendulum under the practical situation is designed, the proposed method is favorably applied to the aspect of anti-swinging active control of a simple pendulum structures, and then the simple pendulum attenuation efficiency is improved.

The invention discloses an electromechanical coupling hybrid modeling method for an electric drive system. The method comprises the following steps: 1) establishing a mechanical dynamics model based on a viscoelastic macro-unit, establishing a one-dimensional hybrid dynamics model composed of the viscoelastic macro-unit and discrete vibrators, modeling a flexible rotor shaft system by adopting thecontinuous viscoelastic macro-unit, and characterizing support and inertia of a rotor bearing elastically attached to the shaft by utilizing the discrete vibrators; 2) establishing Park electric model of an electric drive system under alpha-beta dq rotation orthogonal coordinates; assuming that magnetomotive force generated by the asynchronous motor is distributed along an air gap according to asine rule, and obtaining voltage and current in a three-phase asynchronous motor winding; and 3) establishing electromechanical coupling deep hybrid modeling of the electric drive system based on theharmonic balance method. The method solves the problem of deep fusion modeling among multiple physical quantities of rotation speed, current, flux linkage and load, and can provide a more accurate model for electromechanical coupling control of the electric drive system.

The invention provides a magnetic suspension bearing metal rubber ring combined bearing high-speed rotation system device, belonging to the field of magnetic suspension technique; the device comprises a rotor component, a radial magnetic suspension bearing component, an axial magnetic suspension bearing component and a driving motor, wherein, the radial magnetic suspension bearing is supported by a radial magnetic bearing seat; the device is characterized in that: the radial magnetic suspension bearing seat is supported by a metal rubber ring seat through a metal rubber ring; the magnetic suspension bearing metal rubber ring combined bearing component can effectively reduce the vibration when a rotator crosses the first-order bending modal frequency and improve the dynamic performance of the system. The technical proposal is simple and feasible and has good effect; the requirement of high-speed, heavy-load and slightness development of the rotation mechanical rotor leads the mechanical dynamics problems to be outstanding increasingly; the research result of the device can provide clews and references for solving relative practical problems.