161 results about "Vibration transmission" patented technology

The utility model discloses a kind of car sunroof guide rails with buffering noise reduction structure, it is related to sunroof guide rail field, this kind of car sunroof guide rail with buffering noise reduction structure includes the guide rail main body extending along first direction, outwardly extending mounting plate is formed on the guide rail main body one side outer wall, multiple mounting holes are opened on mounting plate, for bolt connection frame, bolt is passed in mounting hole when connecting;This kind of car sunroof guide rail with buffering noise reduction structure forms three-dimensional grid structure by buffer groove and extension groove, main rubber pad absorbs vertical impact, extension rubber pad inhibits longitudinal vibration, double elastic deformation greatly reduces the area of mounting plate contact part after installation with frame, blocks vibration transmission path, rubber ring in the protruding part groove isolates bolt and mounting plate metal contact, eliminates high-frequency friction abnormal sound.

The present application belongs to the technical field of carbon fiber composite materials, and particularly relates to a carbon fiber composite material with high-frequency damping performance and a preparation method thereof. Through multi-component synergistic modification of an epoxy resin matrix, a nitrile rubber composition and a boron nitride composition, combined with carbon fiber surface treatment and a segmented curing process, a multi-scale damping energy dissipation network is constructed. The material exhibits excellent damping performance in a high-frequency vibration environment, while also having high mechanical strength and interfacial bonding force, which can significantly reduce the damage risk caused by vibration transmission of sports equipment, and is suitable for high-end sports equipment field, promoting the industrial application of carbon fiber composite materials in high-frequency damping scenarios.

The utility model relates to pipeline engineering technical field, concretely is a kind of heat preservation elbow pipe with anti-seismic structure, including elbow pipe body, heat preservation mechanism and anti-seismic mechanism, the heat preservation mechanism and anti-seismic mechanism fixedly connected in the outer surface of elbow pipe body, the inner wall of elbow pipe body is equipped with flow guide groove, the heat preservation mechanism includes internal heat preservation layer and external heat preservation component, the anti-seismic mechanism includes anti-seismic inner layer and external anti-seismic component.In the utility model, through the setting of anti-seismic inner layer, buffer spring and shock absorber, form multilevel anti-seismic system, anti-seismic inner layer can preliminarily absorb the vibration energy of elbow pipe body, avoid vibration transmission to heat preservation layer, buffer spring can buffer external impact, buffer the impact force in the inside of elbow pipe body, prevent the rupture of elbow pipe body due to local stress too large, shock absorber and shock-absorbing expansion spring synergistic effect, the vibration generated due to external connection is quickly attenuated, effectively avoid pipeline interface loose, weld cracking and other risks.

The utility model discloses a water purification equipment sealing structure convenient to maintain belongs to water purification equipment technical field, including water purification equipment body, water purification filter core, six first mounting bolt, outer thread ring, second sealing washer, sealing cover and six second mounting bolt, the outer thread ring one side surface fixedly connected with a plurality of second spring, the utility model discloses, through setting up by first spring, first telescopic link, second spring and second telescopic link's buffer structure, the double seal that collocates first sealing washer and second sealing washer constitutes, can buffer the vibration that water purification equipment body runs and produces, and the problem that the sealing gap is produced to the fatigue deformation of sealing washer, the sealing gap that the sealing performance of existing equipment is led to because vibration transmission is solved pertinently is worn out slightly to another sealing washer still can maintain the sealing effect, further reduce the risk of sealing gap, as far as possible prevent the leakage, finally effectively guarantee the stable sealing performance.

We provide camera modules, in-vehicle systems, and mobile devices that can reduce the number of parts and improve assembly accuracy. [Solution] In the camera module 300 of the present invention, the first housing 23 consists of an external vibrator 23A coupled to an internal vibrator 62 and receiving vibrations from the internal vibrator 62, and a cylindrical vibration-damping weight 95 that forms part of the housing space for receiving the lens barrel 22 and prevents vibrations from the external vibrator 23A from being transmitted to the second housing 24. In this configuration, the weight 95, the second housing 24, and the lens barrel 22 are integrally formed.

The utility model discloses a kind of good anti-shock effect of heating and ventilation engineering fan mounting mechanism, belong to heating and ventilation engineering fan installation technical field.The utility model has the advantages of significantly improving anti-shock performance, prolonging equipment service life, rubber buffer column can actively absorb and buffer energy when heating and ventilation engineering fan body is impacted or vibrated externally, reduce vibration transmission to heating and ventilation engineering fan body, improve the anti-shock ability of overall system, four groups of buffer components are evenly distributed, ensure that heating and ventilation engineering fan body is balanced in each direction Stress, further reduce the instability caused by other external vibration, effectively reduce the vibration frequency and amplitude of heating and ventilation engineering fan body inside and connecting component, reduce mechanical wear and fatigue, thereby prolong the service life of heating and ventilation engineering fan body, buffering and damping effect reduces the loosening and damage of component caused by vibration in running process, improve the reliability of equipment.

This application discloses a shock-absorbing pad and a high-voltage distribution box, belonging to the technical field of high-voltage distribution boxes. It includes a body and a protrusion. The body has a through hole for a connecting device to pass through. The protrusion is connected to the body, and protrusions are provided on both sides of the body along the extension direction of the mounting hole to abut and support the target equipment. The protrusion has a spherical groove with its opening facing the side of the protrusion away from the body. When the shock-absorbing pad is compressed, the opening of the spherical groove extends outward under the pressure, increasing the contact area between the inner wall of the spherical groove and the target equipment. The contact surface gradually transforms into a negative pressure adsorption state, improving the connection stability between the shock-absorbing pad and the target component. Simultaneously, it distributes more vibration to the connecting component, further reducing the vibration transmission of the connecting component and reducing the impact of vibration on the connection and contact performance between electrical control devices in the high-voltage distribution box, as well as the tightness of the connecting component.

The utility model discloses a 500KV main transformer iron core noise reduction auxiliary tool belongs to transformer iron core noise reduction technical field, this 500KV main transformer iron core noise reduction auxiliary tool, transformer iron core subassembly sets up inside transformer body, the bottom of transformer iron core subassembly is installed to the noise reduction shell, and the top limiting installation of transformer iron core subassembly has the supplementary noise reduction cover board, one end of supplementary noise reduction subassembly sets up inside the noise reduction shell, and the bottom transmission connection of transformer iron core subassembly with supplementary noise reduction subassembly's another end, side first damping spring, side second damping spring and end damping spring, can effectively buffer and absorb the vibration energy that transformer iron core subassembly generates, reduce vibration transmission to reduce the generation and spread of noise. Meanwhile, the multilayer composite board and sound absorbing cotton in the supplementary noise reduction cover board can further absorb and block the noise, improve the noise reduction effect, and the supplementary noise reduction cover board is directly installed on the top of the transformer iron core subassembly and is not installed with the transformer body.

The utility model relates to hose connecting technical field especially relates to an anti -shock flexible hose connecting assembly, including flexible connecting piece, both ends of flexible connecting piece are provided with flexible joint, the outside of flexible connecting piece is equipped with shock insulation cover, the surface of shock insulation cover is evenly spaced and is provided with several shock absorbers along the circumference. Through setting up flexible joint, utilize its elastic deformation ability to realize quick plug -in connection with hose, simple operation, high installation efficiency, in addition, set up shock insulation cover outside flexible connecting piece, and arrange multiple shock absorbers on its surface, constitute double damping structure, shock absorber absorbs external vibration energy by its high damping characteristic, play the primary buffering effect, shock insulation cover is as the secondary damping structure, effectively isolates the vibration transmission path, thereby significantly reduce the dynamic stress suffered by the connecting part, improve the adaptive capacity of assembly under the complex vibration environment.

This invention provides a vibration-damping and noise-reducing track structure for RGV (Remotely Resistant Vehicle). The RGV vibration-damping and noise-reducing track structure includes: a vibration-damping base; two tracks, which are mounted on top of the vibration-damping base via multiple sets of fixing brackets. Each set of fixing brackets has fixing bolts installed on its top. The vibration-damping base includes a support structure, a vibration-damping structure, and a wear-resistant structure. The wear-resistant structure is installed between the support structure and the wear-resistant structure, and the vibration-damping structure is a rubber damping pad; filling openings are located at both ends of the tracks, and the interior of the filling openings is filled with a filling structure, which is made of foam plastic. Each track has a sliding opening on its top. The vibration-damping and noise-reducing track structure for RGV provided by this invention can effectively isolate vibration transmission between the track and the foundation, reducing ground vibration and noise propagation, reducing ground vibration amplitude by 30%-40%. Simultaneously, the filling structure can absorb noise, improving the noise reduction effect.

The utility model discloses a kind of vibration-resistant bimetallic thermometers, including protective tube assembly and temperature measuring component, the protective tube assembly includes protective tube and connecting column, silicon oil is filled in the top inside of protective tube, the top of protective tube is fixedly connected with connecting column, the outer surface of the top of connecting column is installed with protective tube through movable screw, corner spring is provided in the inside of universal support, with good vibration resistance, the silicon oil filling in protective tube can make vibration transmission attenuation, effectively reduce the jitter of pointer, reduce reading deviation, so that product reading is more accurate, and reduce the pointer deformation, wear caused by long time high-frequency vibration environment, thickened universal support further improves the impact resistance and shock resistance of product, thickened universal support can better protect the corner spring between meter head component and protective tube assembly, reduce its risk of deformation due to violent vibration.

This utility model relates to the field of automotive seats and discloses an underbody trim panel for automotive seats, including a panel body. A connecting assembly is installed inside the panel body, and a sealing assembly is installed outside the panel body. The connecting assembly includes four support blocks and four connecting slots. The four support blocks are fixedly installed at the rear of the panel body, and the four connecting slots are formed inside the four support blocks. A connecting post is movably installed inside each support block. A guide block is installed at the front end of each connecting post and within the connecting slot. A spring is installed outside the connecting post. A bolt slot is formed inside the guide block and the connecting post, and a rubber ring is installed at the rear end of the connecting post. The connecting post and spring allow the panel body to be pressed backward against the outer surface of the base frame, reducing noise caused by vibration transmission and facilitating adjustment of the connection depth with the seat base frame. The sealing strip improves internal sealing and reduces the ingress of external dust and water droplets.

The application relates to the technical field of compressor damping, and provides a damping assembly and a refrigeration equipment, wherein the damping assembly comprises a first damping part and a second damping part; the first damping part comprises a first support body and a first buffer body, and the first buffer body is connected to the first support body; the second damping part comprises a second support body and a second buffer body, and the second buffer body is connected to the second support body; the first support body is arranged opposite to the second support body, and an installation space for installing a vibration source is formed between the first support body and the second support body. The installation space for installing the vibration source is arranged between the first support body and the second support body, that is, the connection position of the vibration source and the damping assembly is located between the first support body and the second support body, so that the damping assembly can absorb vibration in two directions, the damping effect is better, and the situation that vibration generated by the vibration source is transmitted to a support can be effectively improved.

The application discloses a method and device for simultaneously collecting array vibration and mechanical characteristics of a multi-fracture GIS, and the vibration acceleration sensor is installed on the fracture to collect vibration signals, and the number of action time sequence complete events during GIS opening and closing operations is determined; a rigid body dynamics model is established to simulate the GIS opening and closing operations, and the number of action time sequence complete feedback events during simulation is obtained; when the number of action time sequence complete feedback events is equal to the number of action time sequence complete events, the optimal installation position of the vibration acceleration sensor is determined; the vibration transmission and collection time delay of each vibration acceleration sensor is obtained; the vibration transmission and collection time delay is superimposed on the time interval of each action time sequence during the GIS opening and closing operations to obtain the performance time interval of each action time sequence; and the performance time interval of each vibration signal is marked in the performance time interval of each action time sequence, so that the problems of improper installation, excessive vibration transmission and collection time delay of the vibration and mechanical characteristic collection device are solved.

The present application relates to the technical field of environmental vibration detection, and discloses a micro-vibration prediction system based on actual measurement, comprising: a measuring point arrangement module for arranging external vibration collection points and internal vibration collection points; a data collection module for synchronously collecting vibration response data; a transfer function calculation module for calculating vibration transmission rules and generating a vibration transfer function; a vibration prediction module for converting monitored vibration response data into predicted vibration values; a verification and correction module for comparing actual measurement values with predicted vibration values and dynamically correcting the vibration transfer function according to the comparison results. The present application can truly reflect the actual attenuation rules of vibration sources propagating to sensitive points through geology and structures, avoid errors caused by parameter uncertainty in pure numerical simulation, and give early warnings before vibration events reach sensitive equipment, thus gaining time for production scheduling or active vibration isolation.

The utility model relates to the technical fields of POS machine, especially a POS machine shell, including the casing, the outside one end of casing is installed the shell cover, the inner side wall opening edge of shell cover installs the soft pad, this kind of POS machine shell, soft pad and the edge of POS machine main body are closely combined after shell cover closure, further fixed POS machine position while providing additional buffer protection, when the POS machine is impacted by outside, first damper absorbs and disperses the impact force in vertical direction, second damper adjusts angle through rotation and simultaneously utilizes the damping material in its inside to absorb energy, reduces the vibration transmission to support plate and POS machine main body, thereby protects the internal element of POS machine from being damaged, third damper is connected with support plate through fixing lug, third damper can absorb and disperse impact force, reduces the direct influence to POS machine main body, and forms multilayer shock absorption with first damper and second damper, and the practicality is better.

The utility model discloses an improved electric fan motor, it includes casing, rotor subassembly, heat dissipation module and noise reduction ring. Rotor subassembly realizes high -efficient heat dissipation through heat -conducting silica gel strip, and heat dissipation module combines with air scoop and heat dissipation fin group optimization air current path, and noise reduction ring utilizes the damping block to absorb vibration energy, and the arc fairing of casing inner wall and micropore structure further reduce the noise. In addition, the rubber pad layer of mounting seat bottom reduces vibration transmission. The present application can effectively reduce energy consumption, improve the heat dissipation performance and significantly reduce the noise, satisfy the demand of user to high -efficient, mute electric fan motor.

This invention relates to the field of hydropower equipment condition monitoring technology, specifically a real-time monitoring system for the operating status of hydropower units based on multi-point vibration signals. The system includes modules for multi-point vibration signal acquisition, data preprocessing, extraction of spatiotemporal coupling features from multiple measurement points, dynamic updating of adaptive thresholds for operating conditions, status identification, and real-time prediction and early warning of vibration degradation trends. This invention deploys a multi-point acquisition architecture along the vibration transmission path, constructs spatial weight coefficients based on vibration transmission characteristics to extract spatiotemporal coupling features, dynamically updates early warning thresholds by associating with unit operating parameters, achieves advanced prediction of degradation trends through a time-series model, and employs an edge-end collaborative deployment architecture. This improves the accuracy of early anomaly identification and adaptability to changing operating conditions, achieving millisecond-level low-latency real-time monitoring, and is suitable for the safe management and control of the operating status of various hydropower units.

This invention discloses a method and apparatus for designing the stiffness curve of a powertrain mounting system. The design method includes: acquiring vehicle state parameters and stiffness curve data for each mounting; establishing a dynamic model of the powertrain mounting system based on the vehicle state parameters and stiffness curve data, and determining the vibration data for each mounting; comparing the nonlinear stiffness curve data and vibration data of each mounting with preset data conditions, and correcting the stiffness curve data based on the comparison results to obtain a corrected dynamic model; wherein the stiffness curve data includes nonlinear stiffness curve data; and determining the first limit dimension of the mounting based on the comparison results, according to the vehicle state parameters and preset limit rules. The technical solution of this invention, combined with the design of stiffness curve data under actual vehicle conditions, improves the reliability of noise and vibration transmission reduction in mountings, and effectively improves vehicle ride comfort.

The utility model provides a fan with noise reduction function relates to fan noise reduction technical field, including ventilation pipe still includes the vibration reduction subassembly, and the vibration reduction subassembly includes the soundproofing cotton fixedly connected in the inside of ventilation pipe, the inside fixedly connected with the positioning plate of ventilation pipe, the inside fixedly connected with the inner side plate of one end of ventilation pipe close to the positioning plate, the refraction subassembly, the refraction subassembly includes the refraction board fixedly connected in the inside both ends of ventilation pipe, the inside of refraction board is provided with the resilience angle, the inside of resilience angle is provided with the inner recess, the inside fixedly connected with the ventilation subassembly of ventilation pipe, like this design has realized the stable form of soundproofing cotton under the high speed airflow, suppresses ventilation pipe thin wall resonance, reduces the eccentric vibration of fan blade, thereby effectively solved the secondary structure radiation noise caused by motor and impeller unbalance excitation, from the source controlled mechanical noise, weakened the vibration transmission problem caused by eccentricity.

The utility model relates to electric motor car technical field discloses a kind of electric motor car motor of middle placement, including protective shell, the inner bottom wall of protective shell is fixedly connected with backing plate, the utility model passes through polyurethane elastomer backing plate, absorbs the vibration energy generated when motor runs, play buffering effect, to reduce the amplitude of vibration transmission to external structure, effectively reduce the noise caused by vibration, simultaneously, sound insulation and noise reduction board of protective shell both sides, its internal fiber structure can produce multiple reflection and absorption to sound, further reduce noise propagation, the aperture of conical sound insulation hole on the surface of sound insulation and noise reduction board gradually decreases, so that sound is hindered and reflected by different aperture size when passing, effectively reduce the propagation intensity of sound, reach better sound insulation and noise reduction effect, significantly reduce the noise when electric motor car motor runs, avoid the adverse effects of traditional motor noise on riding comfort and surrounding living environment.

The application provides a kind of encapsulated ultrasonic transducer and a kind of wet porous membrane extraction method, belong to lithium ion battery membrane preparation technical field.The encapsulated ultrasonic transducer provided by the application adopts stainless steel shell and flange to form airtight space, realizes the encapsulation of the outside of the rear end and front cover plate of half-wavelength sandwich type piezoelectric transducer, ensures that each ultrasonic transducer can independently act on extraction liquid, directly contacts and couples with extraction liquid through the setting of amplitude lever probe, the vibration transmission path is short, the energy utilization rate is higher, the sound field distribution is more uniform, and the cavitation effect is stronger.The amplitude lever probe can form a concentrated and stable excitation surface, can form a controllable strong ultrasonic field on the surface of the base film, avoid the problems of sound field blind area, local overheating or uneven cavitation easily occurred in the built-in ultrasonic transducer, and further improve the extraction efficiency of the membrane.

This utility model relates to the field of data storage hard disk technology and discloses a data storage hard disk shockproof placement device. A support protrusion is provided at the lower part of the mounting slot, and a rubber pad is fitted and fitted at the lower part of the support protrusion. The buffering support of the rubber pad can reduce the vibration transmission from the chassis side, which is beneficial to improving the working stability of the hard disk. The hard disk adopts a slot positioning and side support type installation structure. After the hard disk and the mating side are installed, they are connected to the mounting slot through a sliding groove structure, making disassembly and assembly convenient. The inner cavity of the mounting slot is set with the maximum specification size. By using it with different mating side, the device can meet the support and installation needs of hard disks of different sizes. A rear heat sink is provided at the rear of the mounting slot. While providing support and protection for the hard disk installation, the rear heat sink can be connected to external heat dissipation components. Combined with the heat dissipation slots opened on the side of the mounting slot, the ventilation and heat dissipation effect of the device can be effectively improved.

This application relates to a housing and power conversion equipment, belonging to the field of electrical equipment technology. The housing includes a housing body, a cover, a first vibration damping part, and a connector. The cover seals the housing body to form a cavity for housing the electrical equipment, and the two are connected by the connector. The first vibration damping part is located at the connection between the housing body and the cover, within at least one of a first mounting hole in the housing body and a corresponding second mounting hole in the cover, and has a third mounting hole for the connector to pass through. The housing uses detachable connectors and corresponding mounting holes, ensuring a stable connection and facilitating maintenance. The first vibration damping part effectively blocks vibration transmission and absorbs vibration energy by filling the first and / or second mounting holes, while also enhancing the housing's sealing performance. This design addresses the noise problem caused by the vibration of internal components at its source, significantly reducing sheet metal radiated noise, providing a safe and stable operating environment for electrical components, and achieving a dual improvement in noise reduction and protection performance.

The utility model provides a kind of saturated steam detection device, including detection box, the utility model is provided with buffer structure, when detection device is vibrated by outside, buffer structure starts to play a role, fixed bottom plate first receives vibration, four first buffer springs symmetrically distributed on its upper portion occur elastic deformation, utilize self telescopic buffer vibration energy, reduce vibration transmitted to detection box, piston is directed to and limit effect to first buffer spring, first fixed column on fixed bottom plate will be displaced due to vibration, be rotated by first connecting shaft and drive connecting rod, and then change vibration transmission direction and disperse vibration. Compression column outside second connecting shaft moves in conjunction, slide on first connecting column, second buffer spring between two compression columns further absorbs vibration energy, and part of energy is also consumed by compression column rotating around second connecting shaft. After multistage buffering, effectively weaken vibration transmitted to detection box, ensure that detection result is not disturbed by outside vibration.

This invention provides an indirect method for measuring the obstruction force source characteristics of mechanical equipment. The method includes the following steps: S1, obtaining the obstruction force function expression based on vibration transmission path analysis; S2, arranging measuring points on the mechanical equipment assembly system; S3, conducting a mechanical equipment operation test and collecting the responses of the indicated degree of freedom and the verification degree of freedom; S4, conducting a frequency response function test of the assembly system and obtaining typical frequency response function vectors of the verification degree of freedom measuring points and the contact degree of freedom measuring points; S5, calculating the obstruction force vector according to the obstruction force function expression; S6, comparing the predicted vibration response and the actual vibration response at the verification degree of freedom measuring points to verify the accuracy of the obstruction force calculation results. This invention provides an indirect method for measuring the obstruction force source characteristics of mechanical equipment, enabling the measurement of equipment obstruction forces under different installation conditions without disassembling the mechanical equipment.

The invention discloses a finite time composite vibration suppression control method and system for same-frequency vibration of a magnetic bearing-rotor system. The finite time composite vibration suppression control method comprises the steps that a synchronous vibration component in rotor displacement is extracted through a same-frequency narrow-band tracking filter; performing phase lead correction by using an all-pass phase shifter, generating a feed-forward compensation force by combining an equivalent gain and electromagnetic linear model based on a feedback link, and offsetting a displacement stiffness force which causes vibration transmission from a physical source; a finite time same-frequency narrow-band extended state observer is constructed, and rapid and accurate finite time estimation is carried out on total disturbance including model mismatch; and designing a finite time nonsingular terminal sliding mode controller, fusing the feedforward compensation force and the disturbance estimation value, and generating a control law with a finite time convergence characteristic. According to the method, through cooperation of feed-forward compensation, finite time observation and finite time control, rapid convergence and high-robustness stabilization of same-frequency vibration and effective suppression of control buffeting under a dynamic working condition are realized.

This utility model discloses a centrifugal clutch for aircraft with a bridge transition, relating to the field of clutch technology. The utility model includes: a coupling hub, a connector block, an upper flange, and a lower flange. This utility model achieves lightweight and high wear resistance by using 7075 aluminum alloy for the coupling hub and heat-sealing it with a wear-resistant steel ring. An aluminum alloy transition bridge is added between the coupling hub and the lower flange to form an axial flexible connection, solving the problems of heavy weight, strong vibration transmission, and complex maintenance of traditional cast iron clutches. It is suitable for rotorcraft power systems.

The application discloses a kind of urban renewal building waste cleaning equipment and its use method, it is related to garbage disposal technical field, its technical scheme includes conveying tank, filter plate is fixedly connected in conveying tank upper portion, vibration transmission shell is arranged in conveying tank bottom, first motor is arranged in vibration transmission shell upper portion, first motor output end is provided with first transmission belt, first transmission belt is driven connection with first transmission wheel, first transmission wheel is fixedly connected with eccentric wheel, eccentric wheel side is rotatably connected with vibrating rod, in the application, eccentric wheel rotation can drive conveying tank reciprocating movement, further drive filter plate vibration, filter plate does oblique reciprocating linear vibration, material on its upper portion relies on inertia, slip and throwing effect generated by vibration, along inclined groove face continuously moves at uniform speed forward, realizes continuous feeding, and vibration can also screen fine gravel and dust small particles in building waste in this feeding process, thereby avoid dust flying in subsequent garbage cleaning process.

The utility model belongs to bearing technical field, concretely is a kind of bearing outer ring with shock-absorbing function, including outer ring body: composite shock-absorbing layer is coaxially sleeved in the outer side of outer ring body, protective shell is covered in the outer side of composite shock-absorbing layer;Composite shock-absorbing layer is made of polyurethane matrix and the spiral metal framework embedded in it.Concrete is provided with the utility model by the outer side of outer ring body composite shock-absorbing layer, can use polyurethane matrix and spiral metal framework provide better buffer, shock-absorbing effect, to reduce the vibration transmission on equipment that bearing receives, to ensure the normal operation and service life of equipment, by adding 5-8wt% silicon carbide particles in polyurethane matrix, can improve thermal conductivity, facilitate heat dissipation, while inhibiting high temperature softening, improve service life, by wave-shaped protrusion and dovetail groove, can increase the deformation space of polyurethane matrix, improve the peel strength, strengthen shock-absorbing effect.