28results about How to "Achieve vibration reduction" patented technology

The parallel mechanism comprises a top plate, a base and an upper supporting leg, a partition plate is installed between the top plate and the base, the upper supporting leg is installed between the top plate and the partition plate, and the top of the upper supporting leg is connected with the bottom of the top plate through a flexible spherical hinge. The number of the upper supporting legs is six, every two adjacent upper supporting legs are perpendicular to each other, six lower supporting legs are perpendicularly installed on the top of the base, and the lower supporting legs penetrate through the partition plate and are connected with the upper supporting legs in a one-to-one correspondence mode through hooke joints. The device can realize 0.1-500Hz vibration control, vibration isolation bandwidth and six-degree-of-freedom vibration isolation, has the function of accurate positioning of a parallel mechanism, enables the driving distance of the system to be large through the serial connection of the servo motor and the voice coil motor, and can also be applied to the technical field of equipment for optical testing, measurement, alignment, detection and the like.

The utility model discloses a vibration reduction platform based on low-frequency limit cooperative control, which belongs to the technical field of vibration reduction platforms and comprises a bottom plate, a top plate, a vibration reduction component, a pressure bearing part and a sliding component. The top plate is connected with the bottom plate through the damping assembly. The vibration reduction assembly comprises a supporting block, a wedge-shaped piece, a movable piece, a movable rod, a fixed plate and a vibration reduction spring A; the four supporting blocks are evenly arranged on one side of the top plate through the pressure bearing pieces. The wedge-shaped piece is connected with one end of the supporting block; the two movable parts are symmetrically arranged on the two sides of the wedge-shaped part. The movable rods are fixedly arranged on the sides, deviating from each other, of the two movable parts; the fixed plate is sleeved on the movable rod; according to the vibration reduction platform based on low-frequency limit cooperative control, vibration force can be dispersed and buffered through the arranged vibration reduction assembly, the vibration frequency can be reduced, low-frequency limit vibration reduction is achieved, cooperative control over the vibration force can be achieved through multiple dispersion and buffering, and the vibration reduction effect is improved. Therefore, the effect of low-frequency limit cooperative control is realized.

The invention relates to a particle damping and electromagnetic suspension mixed vibration isolation test platform and a working method thereof. The platform is divided into an upper platform part and a lower platform part, the upper platform part comprises an upper supporting frame, an electromagnet and a suspension vibration sensor, the suspension vibration sensor monitors the suspension vibration condition of the upper platform part and collects signals, and the signals are transmitted to a suspension vibration controller and drive the electromagnet to generate response electromagnetic force for active vibration reduction; suspension vibration isolation is achieved; the platform lower portion comprises a lower supporting frame, a hollow groove, damping particles and a vibration sensor, the vibration sensor monitors the suspension vibration condition of the platform lower portion, the vibration controller calculates the rigidity and damping which should be achieved, the number of the damping particles is controlled to change the rigidity and damping of the platform lower portion, and particle damping vibration attenuation is achieved. Compared with the prior art, the full-band vibration energy attenuation and vibration isolation device has the advantages of achieving full-band vibration energy attenuation and vibration isolation, being good in vibration isolation effect, stable, high in integration degree, high in flexibility, high in practicability and the like.

The invention provides a light truck four-wheel drive rear air suspension device and a vehicle, and belongs to the technical field of automobile suspensions. Comprising two guide arms, two multi-cushion-block structures, a shock absorber assembly, an air bag, a drive axle, a stabilizer bar assembly and a thrust rod assembly. One end of each guide arm is connected with the frame, the other end of each guide arm is connected with an air bag, and the upper end of each air bag is connected with the frame; the drive axle is connected with the guide arm through two multi-cushion-block structures. The first end of the shock absorber assembly is connected with the frame, and the second end of the shock absorber assembly is connected with the end, away from the guide arm, of one multi-cushion-block structure. The first end of the stabilizer bar assembly is connected with the frame, and the left end and the right end of the lower end of the stabilizer bar assembly are connected with the ends, deviating from the corresponding guide arms, of the two multi-cushion-block structures in a one-to-one correspondence mode. The problems that an existing suspension is poor in controllability, poor in comfort and the like are solved. The technical effects of being good in controllability, good in comfort and the like are achieved.

The utility model discloses an air suspension vehicle's distribution valve regulation sound eliminating structure and automobile, the air suspension vehicle's distribution valve regulation sound eliminating structure includes suspensions and gaskets, the suspensions are arranged on two symmetrical points on the side surface of a distribution valve, and the gaskets are respectively arranged on two symmetrical sides of a suspension connecting line on the bottom surface of the distribution valve. When the distribution valve works, the valve port is opened and closed, the suspension on the side face of the distribution valve and the gasket play a role in vibration isolation, sound transmission is eliminated, vibration isolation is carried out on a transmission path, and in the bumping process of a vehicle, the gasket arranged on the bottom face of the distribution valve plays a role in Z-direction supporting, so that the durability of the suspension on the side face is improved, and the service life of the distribution valve is prolonged. The design with high cost performance not only improves the comfort and mute performance of the vehicle, but also brings more pleasant driving experience to the vehicle owner.

The utility model relates to the technical field of construction vibration reduction, in particular to a vibration reduction and isolation guide assembly. The device moves up and down on the guide rail through the guide unit. The guide unit comprises a hollow shaft, a guide wheel, a first elastic washer, a first fixing ring, a second elastic washer, a second fixing ring and a bearing, a double vibration reduction and isolation structure is formed through sleeving connection of all the parts, vibration of a vibration source to a guide rail embedded in the guide wheel can be remarkably reduced, and therefore mechanical equipment is protected.

The application provides a locally elastically buckled damping metamaterial structure and a preparation method thereof, and solves the problem that the existing compression-torsion structure cannot simultaneously meet the excellent compression-torsion effect and structural stability requirement. The damping metamaterial structure is a cylindrical structure formed by sequentially stacking M compression-torsion structure units along an axial direction, adjacent compression-torsion structure units are connected through annular connecting panels, and annular connecting panels are coaxially arranged at both ends of the entire damping metamaterial structure. The compression-torsion structure unit is a cylindrical structure formed by sequentially connecting N curved surface structure unit cells in a head-to-tail manner. The angle of each curved surface structure unit cell bending in the circumferential direction of the cylinder is 360° / N. The curved surface structure unit cell comprises a circular ring main body and a circular arc ligament assembly arranged on the outer periphery of the circular ring main body. Under the action of an axial load, the circular arc ligament preferentially undergoes local elastic buckling deformation, and drives the circular ring main body to rotate, so that the structure forms a compression-torsion response, thereby realizing recoverable energy absorption and damping.

The proposed structure of a vibration damper (13, 18, 25) with at least two dampers (6, 12, 19, 20, 21) can effectively damp the frequency characteristics of a crankshaft. The at least two dampers each include at least one spoke spring (29, 30, 31). The dampers (6, 12, 19, 20, 21) preferably have different natural frequencies, which are matched to the frequency characteristics of the crankshaft. The dampers (6, 12, 19, 20, 21) have a frequency characteristic that is independent or only slightly independent of the aging of the spoke springs (29, 30, 31) and of the ambient temperature. The corresponding vibration damper (13, 18, 25) can be easily constructed and installed.

The utility model discloses a vibration absorbing device for flange connection, which belongs to the technical field of flange connection and comprises a flange sleeve, a mounting frame is arranged on the surface of the flange sleeve, six groups of mounting grooves are arranged on the surface of the mounting frame at equal angles, and mounting plates are arranged in the mounting grooves. According to the vibration absorption device connected with the flange, the surface of the flange sleeve is sleeved with the mounting frame, fixing studs on one side of the flange sleeve penetrate through fixing holes to tighten fixing nuts, after the mounting frame is clamped and fixed to the surface of the flange sleeve, six sets of mounting plates are correspondingly inserted into mounting grooves correspondingly, T-shaped insertion strips are inserted into corresponding T-shaped insertion grooves, and then the mounting frame is clamped and fixed to the surface of the flange sleeve; and after the six sets of mounting plates are completely inserted into the mounting grooves, fixing pressing rings are correspondingly clamped to one sides of the mounting frames, then fixing studs penetrate through the fixing pressing rings, fixing nuts are tightened, and therefore the fixing pressing rings and the mounting frames are connected, the mounting plates are clamped and fixed into the mounting frames, and the mounting plates are conveniently disassembled or assembled.

This utility model belongs to the field of cavitation heat pump technology, specifically a cavitation heat pump capable of noise reduction. It includes a base, a working motor fixedly connected to the top edge of the base, a rotating shaft fixedly connected to the output end of the working motor, a pump casing mounted on the outer wall of the rotating shaft, and a pump body fixedly connected to one end of the rotating shaft. A cavitation drum, fixedly connected to the inner wall of the pump casing, is sleeved on the outer wall of the pump body. The outer wall of the cavitation drum has cavitation holes, and a protective frame is fixedly connected to the outer wall of the pump body. This utility model, by incorporating a sponge and a connecting plate, absorbs the noise generated by the bursting of cavitation bubbles. Simultaneously, the pump casing vibrates, causing the connecting plate to vibrate synchronously. This transmits energy to a first damping spring via a lifting plate and to a second damping spring via a telescopic plate, thus reducing vibration of the pump casing.

The invention relates to the technical field of pipeline pumps, and provides a supporting device for a pipeline pump impeller and a pipeline pump. The supporting device for the pipeline pump impeller comprises: a thrust plate, a rotor hub, a first elastic body, a second elastic body and an elastic bushing; the thrust plate is used to be connected to a stator shaft; the thrust plate has a first end face and a second end face that are separated from each other; the rotor hub is sleeved on the stator shaft, and the thrust plate is arranged in a groove of the rotor hub; the rotor hub is used to be connected to the impeller; the first elastic body and the second elastic body are arranged on both sides of the thrust plate; the first elastic body is respectively connected to the groove wall of the groove and the first thrust pad, and the first thrust pad is detachably connected to the first end face; the second elastic body is respectively connected to the groove wall of the groove and the second thrust pad, and the second thrust pad is detachably connected to the second end face; the elastic bushing is arranged between the rotor hub and the supporting pad on the stator shaft; the invention realizes radial and axial vibration reduction of the impeller on the stator shaft.

The application discloses a cutting device, which comprises a cutting element and a power head for driving the cutting element, and the power head further comprises a shell, an end cover connected with the shell, and a limiting structure for fixing the motor in the circumferential direction relative to the shell and the end cover, and a gap is arranged between the motor and the shell in the axial direction and the radial direction. The cutting device can make the motor move relative to the shell and the end cover in the axial direction and the radial direction, thereby reducing the vibration transmission between the motor, the shell and the end cover, avoiding the motor from being deadlocked with the shell and the end cover, and enabling the motor to shake and find the gravity center, so that the vibration of the cutting device is reduced and the user's hand feeling is improved.

The invention provides a precast pile hoisting rigging and a using method thereof.The precast pile hoisting rigging comprises an adjustable hoop assembly, a wedge-shaped self-unhooking elevator and an elastic buffering sleeper, the adjustable hoop assembly comprises two semicircular hoops which are symmetrically distributed up and down, and each semicircular hoop comprises a semicircular hoop body, an adjusting assembly, a transmission assembly and a fixing clamping plate; the adjusting assemblies, the transmission assemblies and the fixing clamping plates are all arranged on the semicircular hoop bodies, the multiple fixing clamping plates are arranged on the inner sides of the semicircular hoops, the fixing clamping plates are used for jacking and clamping a precast pile, and the wedge-shaped self-unhooking elevators are arranged on the outer sides of the butt joint positions of the two semicircular hoops correspondingly. The wedge-shaped self-unhooking elevator is connected with the corresponding semicircular hoop in a clamping mode, and the elastic buffering sleeper is detachably connected with the semicircular hoop located on the lower portion of the adjustable hoop assembly. By means of the rigging, vibration isolation protection of the precast pile can be effectively achieved, and meanwhile safe hoisting of the precast pile can be conveniently achieved.

The invention discloses a new energy automobile battery pack buffering device, and belongs to the technical field of battery pack buffering, the new energy automobile battery pack buffering device comprises a placing device, the placing device is used for placing a battery pack, a damping device and a delaying device are arranged in the placing device, and the damping device is used for damping the battery pack; the delay device is used for delaying the time from abnormal heating to combustion of the battery pack. When the upper cover of the placing device is buckled, the interface is automatically inserted into the butt joint port of the battery pack, and the battery pack is cooled through the cooling fins, so that the use is convenient; through the bottom springs and the side springs on the periphery of the inner wall of the bottom box, vibration reduction of the battery pack in all directions is achieved, and the buffering effect is good; when the vibration of the battery pack in a certain direction exceeds a certain amplitude, the power-off switch is triggered to cut off the power of the battery pack; the delay device is used for cooling and heat insulation in a manner of combining dry ice, a carbon-nitrogen mixture and acid reaction expansion, and the combustion time of the battery pack is delayed when the battery pack is in extreme heating.

The invention belongs to the technical field of grinding machine equipment, and particularly relates to a grinding machine belt tensioning device and method.The grinding machine belt tensioning device comprises a belt, a driving belt wheel, a driven belt wheel, a motor and a hydraulic device; the driving belt wheel is installed at the output end of the motor, and the motor is installed on the sliding table. A base is arranged below the sliding table, the base is installed on the rack, two supports are installed on the base at intervals, a plurality of transverse rods are fixedly connected between the two supports, sliding groove holes are formed in the positions, corresponding to the transverse rods, of the sliding table, and the sliding table is in sliding connection with the transverse rods through the sliding groove holes; the hydraulic device can push the sliding table to slide along the transverse rod. Compared with the prior art, the device has the advantages and positive effects that a belt of the grinding machine keeps a certain tension degree and vibration reduction of a machine frame of the grinding machine is realized in the working process at the same time; the sliding groove hole of the sliding table and the cross rod consume vibration energy through friction damping, and the purpose of reducing vibration of the rack is achieved.

The invention discloses a wind turbine generator vibration isolation structure based on an adjustable acoustic metamaterial and application. The wind turbine generator vibration isolation structure comprises a substrate, an elastic element and a tunable mass element. The substrate is made of a metal material; the elastic element is arranged on the substrate and is made of a non-metal material; and the tunable mass element is arranged on the elastic element and is made of a metal material. Compared with a traditional vibration isolator, the wind turbine generator vibration isolation structure based on the adjustable acoustic metamaterial can respond to vibration within a wide frequency range, vibration suppression of the corresponding frequency is achieved, the structure not only responds to vibration under a certain specific frequency, and even if the vibration is relatively complex, the vibration suppression effect is good. And a good vibration reduction effect can also be achieved.

The present application belongs to the technical field of gas insulated metal enclosed transmission line (GIL) bridge laying, and particularly relates to a GIL suspension system laid along the bottom of a bridge and integrated with multi-grade vibration reduction and self-monitoring, which can be applied to GIL power transmission projects of large-span bridges across rivers or seas. The present application provides a liquid anti-sloshing vibration reduction and piezoelectric monitoring integrated system for GIL pipes laid along a bridge, which solves the problems of poor deformation adaptability, obvious wind-induced sloshing, narrow vibration isolation frequency band, insufficient self-vibration suppression and complex state monitoring of the existing GIL bridge laying support system, realizes four-stage collaborative vibration reduction of "hinged energy release-tuned anti-sloshing-elastic vibration isolation-damping vibration suppression", and realizes self-driven monitoring of the vibration state by using the liquid sloshing of the anti-sloshing tank to drive the piezoelectric unit.

The invention relates to the technical field of vehicle parts, in particular to a damping device, a suspension system and a vehicle. The damping device comprises a transmission cam and an execution assembly, and the transmission cam is provided with a guide structure; the execution assembly is in matched transmission with the guide structure, and when the transmission cam moves, the execution assembly is driven to move in the axis direction of the transmission cam. In the damping device, an execution assembly and a guide structure are in matched transmission, when a transmission cam moves, the transmission cam drives the execution assembly to move in the axis direction of the transmission cam, the execution assembly moves to drive a to-be-damped part connected with the execution assembly to move in the axis direction of the transmission cam, and therefore damping is achieved. The damping device achieves damping through matched transmission of the guide structure and the execution assembly in the transmission cam, damping is achieved through a mechanical structure, and the damping device has the advantages of being higher in adjusting capacity and higher in response speed.

The invention discloses an axial folding mechanism and a band-gap-adjustable photonic crystal vibration reduction device, and belongs to the technical field of photonic crystal vibration reduction. The axial folding mechanism comprises a plurality of folding plates, a plurality of hinges and a plurality of spherical hinges, wherein the folding plates are connected together through the hinges and the spherical hinges. The plurality of folding plates are assembled in a Mipu paper folding stacking structure, adjacent sides of two adjacent folding plates are connected through hinges, and contact points of three adjacent folding plates are connected through spherical hinges; folding plate electromagnets are arranged on the folding plates located at the two ends of the axial paper folding mechanism, and the two folding plate electromagnets are connected with a power source. The photonic crystal vibration damper with the adjustable band gap comprises a plurality of sleeves, and the sleeves are used for regularly sleeving a tubular target structure at intervals; a plurality of axial folding mechanisms are arranged between the two sleeves in the axial direction of the sleeves. The device is convenient to design and manufacture, the mounting distance of the photonic crystal vibration reduction units can be changed through remote and reversible electromagnetic driving, so that the band gap adjustable effect is achieved, and operation is easy and convenient.

The day and night fire control sighting telescope comprises a telescope body and an external setting mechanism, and the external setting mechanism is located on the lower portion of the telescope body and used for being connected with large-firing-angle equipment and externally setting a firing angle; an infrared module, a television module and a laser ranging module are mounted on a front cover plate of the mirror body, an environmental parameter sensing module is mounted at the bottom of the mirror body, a fire control resolving module and an air-blast module are mounted in the mirror body, and the air-blast module is connected with a system executing mechanism through an air-blast connecting socket; the external setting mechanism comprises a pitching seat, a connecting seat and a support, the mirror body is installed on the pitching seat through a bolt, and the connecting seat is fixed to the lower portion of the support. The device can be used for long-distance day and night observation and high-precision aiming of large-firing-angle equipment, and can also be used for observation and aiming of direct-firing equipment.

The application discloses an air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit is provided with a damping device on a refrigerant pipeline. The damping device comprises a first component, a connecting rod and a second component. The first component is arranged on the refrigerant pipeline. The connecting rod is arranged on the first component. The second component is arranged on the connecting rod. The second component and the first component and the connecting rod can move relatively. One of the first component and the second component is a conductor, and the other is a magnet. When the refrigerant pipeline vibrates and drives the first component and the connecting rod to vibrate, the relative movement occurs between the first component, the connecting rod and the second component, so that the conductor generates an induced current. The magnetic field generated by the induced current is opposite to the magnetic field of the magnet, which can prevent or slow down the movement of the first component to reduce the vibration of the refrigerant pipeline. The induced current in the conductor also causes the conductor to heat, so that part of the kinetic energy of the refrigerant pipeline is converted into electric energy and heat energy, further consuming the kinetic energy of the refrigerant pipeline, and realizing the damping of the refrigerant pipeline.

The invention relates to a composite assembly applied to magnetic resonance imaging and a magnetic resonance imaging system, relates to the technical field of magnetic resonance imaging, and can reduce vibration of a scanned object and effectively dissipate heat of the scanned object in a magnetic resonance scanning process. The composite assembly comprises a first elastic buffer layer and a composite function layer composed of a phase change material and a heat conduction material. The composite functional layer and the first elastic buffer layer are distributed along the thickness direction of the composite assembly; wherein the at least one composite function layer is located on the first elastic buffer layer and used for providing support for a scanned object in the magnetic resonance scanning process through the side, deviating from the first elastic buffer layer, of the composite function layer.

The utility model discloses a machine tool vibration reduction system and a machine tool. The vibration reduction seat is arranged above the base; the first vibration reduction assembly is arranged between the base and the vibration reduction seat and is connected with the base and the vibration reduction seat; the suspension seat is arranged between the base and the vibration reduction seat, and an avoiding hole for avoiding the first vibration reduction assembly is formed in the suspension seat; the second vibration reduction assembly is arranged between the vibration reduction base and the suspension base and connected to the vibration reduction base and the suspension base. A machine tool vibration reduction system can reduce vibration of a machine tool, improve machining precision and reduce use noise. The utility model is applied to the machine tool field.

The utility model discloses a drying and washing all-in-one machine, which belongs to the technical field of electric appliances and comprises a casing, a base, a support component, a first power generation component, a second power generation component and a roller component. The supporting assembly comprises a first rail seat, a second rail seat, a first roller, a supporting seat and a second roller, wherein the first rail seat and the second rail seat are arranged on the base, the first roller is rotationally installed on the second rail seat and installed on the first rail seat in a rolling mode, and the second roller is rotationally installed on the supporting seat and installed on the second rail seat in a rolling mode. The first power generation assembly and the second power generation assembly each comprise a power generation type electromagnetic damper, a driving wheel in transmission connection with the output end of the power generation type electromagnetic damper, a driven wheel and a conveying belt arranged on the driving wheel and the driven wheel in a sleeving mode. The roller assembly is installed on the supporting base, the power generation type electromagnetic damper is installed on the second rail base or the supporting base, and the driven wheel and the first roller or the second roller are connected and rotate synchronously. According to the utility model, damping vibration attenuation and vibration energy recovery can be realized.

The utility model discloses a high rigidity vibration reduction cutter bar structure for deep hole boring, and relates to the technical field of machining cutters, the deep vibration reduction cutter bar structure comprises a main bar and a water inlet pipeline arranged at one end of the main bar, and further comprises a rigidity reinforcing assembly, a vibration reduction assembly and a cutter head assembly, through the design of the multiple layers of reinforcing ribs, the rigidity of the hollow cutter bar is greatly improved, compared with a traditional hollow cutter bar, the non-deformability of the hollow cutter bar is greatly improved, and the machining precision is effectively guaranteed; according to the cutter bar, the vibration reduction arms can be freely stretched through the self-adaptive vibration reduction device according to the shape of the special-shaped hole, all-directional vibration reduction is achieved, the problem that the adaptability of fixed-length vibration reduction is poor is solved, and the vibration reduction effect is improved.

The utility model discloses a damping bowl set which comprises an inner ball plug and a steel ball bowl arranged outside the inner ball plug in a sleeved mode, a gap is formed between the steel ball bowl and the inner ball plug, and a damping piece is arranged at the position, close to the bottom, of the gap between the steel ball bowl and the inner ball plug. A steel ball is arranged in a gap between the steel ball bowl and the inner ball plug and close to the top; the damping device has the advantages that through the steel ball bowl, the inner ball plug, the damping piece and the steel ball, when the inner ball plug rotates, due to the fact that the inner ball plug is attached to the damping piece, the inner ball plug slides on the damping piece, the vibration reduction and damping effects are achieved, in other words, after the inner ball plug is pushed, the inner ball plug can move upwards, and therefore the damping effect is achieved. The steel ball bowl and the inner ball plug generate mutual pushing force, so that the inner ball plug is tightly attached to the damping piece, meanwhile, the inner ball plug is attached to the steel ball to rotate, the clamping condition is avoided, and the vibration reduction and damping effects can be achieved.

The invention relates to a vibration reduction supporting device and an anti-dislocation structure for a redox flow battery pile, the vibration reduction supporting device comprises a base and a supporting frame, a first vibration reduction structure is arranged between the base and the supporting frame, the first vibration reduction structure is used for providing vibration reduction for the redox flow battery pile in the vertical direction, and the first vibration reduction structure is used for providing vibration reduction for the redox flow battery pile in the vertical direction. The supporting frame comprises a first frame body and a first supporting plate connected to the bottom of the first frame body. The second supporting plate is used for bearing a redox flow battery electric pile and is supported on the first supporting plate, a second vibration reduction structure and a third vibration reduction structure are arranged between the second supporting plate and the first frame body, and the third vibration reduction structure is arranged between the second supporting plate and the second frame body. The second vibration reduction structure is used for providing vibration reduction in the left-right direction for the redox flow battery electric pile plate, the third vibration reduction structure is used for providing vibration reduction in the front-back direction for the redox flow battery electric pile, the vibration reduction supporting device has a good vibration reduction effect on the redox flow battery electric pile, and the service life of the redox flow battery electric pile is prolonged.

The invention provides a generator base for a high-temperature gas cooled reactor and a generator, and relates to the technical field of generators, the generator base comprises a base main body and a friction damper, and the base main body is provided with a first mounting surface; the friction damper is provided with a first side face facing the first installation face, the first side face is connected with the first installation face and makes surface contact with the first installation face, and the friction damper is located outside the machine base body and used for absorbing vibration energy of the machine base body. The friction damper can be used for absorbing vibration energy, so that the inherent frequency of the engine base is adjusted, damping is increased, and the vibration resistance of the engine base is improved.