40results about How to "Improve vibration isolation performance" patented technology

The invention relates to the technical field of shock absorption and shock isolation of buildings and particularly relates to a prefabricated compound shock isolation member for an assembling type building. The prefabricated compound shock isolation member for the building comprises a member main body, a connecting assembly arranged on the member main body, and a pre-embedded assembly and reinforcing bars, which are arranged in the member main body; the prefabricated compound shock isolation member is integrally molded through concrete pouring; the connecting assembly is connected with a building member; the pre-embedded assembly is connected with a shock isolation support. The pre-embedded assembly, the reinforcing bars and the connecting assembly are integrally molded through the concrete pouring, so that precision requirements of the reinforcing bars and the pre-embedded assembly are guaranteed and manufacturing can be standardized; the installation efficiency, installation quality and installation precision of the shock isolation support are improved; the shock isolation performance of the building is improved. The pre-embedded assembly is flexible in design and can also be connected with a tensile device, a wind-resisting device and/or a fireproof device, so that the shock isolation support has fireproof, tensile and wind-resisting functions.

An improved rubber support comprises a rubber support body with a hole or a lead core variable, a rubber support body with multiple holes or lead cores, a large-dimension rubber support body, a rubber support body shaped like a variable steel plate, a rubber support body with a variable steel plate arranged on the surface and a rubber support body made of a variable steel plate. The shape and the height proportion of middle holes or the lead cores can be adjusted, and the side boundaries of longitudinal and radial profiles of the middle holes or the lead cores are broken-line-shaped or curve-shaped, for example, the side boundaries can be trapezoid, V-shaped, T-shaped, folded-line-shaped or curve-shaped or in a combined shape so as to meet the requirements for different shock insulation design. A plurality of holes can be arranged on the horizontal profile of the rubber support, and the position, the number, the size and the shape of the holes can be adjusted according to requirements. None or one or several lead cores can be arranged, the lead cores can be placed in part or all of the holes, the shape of the holes or the lead cores can be single or variable, the height of the holes or the lead cores is adjustable, and the height of the holes can be the same as or different from that of the lead cores. The rubber support can be a large-dimension (such as large-diameter) rubber support. The surface of a middle interlayer steel plate can be non-planar, and the surface of the steel plate can be uneven and rough.

The invention discloses a wheel. A hub of the wheel is adaptive to a rotating shaft of running equipment; a plurality of elastic supporting pieces are uniformly distributed on the peripheral surface of the hub in the circumferential direction; bodies of the elastic supporting pieces extend outwards to form end part external circular arc sections; the external circular arc sections of the pluralityof elastic supporting pieces are arranged in sequence in a spaced manner in the circumferential direction and have concentric and isodiametric convex circular arc surfaces; the elastic supporting pieces have stress deformation areas and stress position changing areas and are configured in such a way that the stress deformation areas are positioned at the middle sections of the main bodies; the direction of deformation stress generated under an outside force in the moving process tends to be consistent with the tangential direction of the rotation of the hub so that an acting force for pushingthe hub to rotate is formed during releasing the deformation stress; and the external circular arc sections are the stress position changing areas and can generate displacements with the deformations. According to the scheme, as the traditional rigid structure is transformed into rigid and soft combined structure, and an outer tire is eliminated, good running performance can be obtained, and theinfluence of a severe use environment on the service life of the wheel can be effectively avoided. The invention further provides running equipment with the wheel.

The invention discloses an air floatation vibration isolation platform on the basis of air floatation zero-position reference and laser auto-collimation measurement, and belongs to ultra-precision measurement and ultra-precision processing equipment. The air floatation vibration isolation platform is provided with three or more vibration isolators, beam splitter prisms and photoelectric detectors. An air floatation vibration isolation platform body and a load thereof are supported by the vibration isolators which are of static-pressure air floatation structures, six-degree-of-freedom postures of the platform are monitored by the beam splitter prisms and the photoelectric detectors, and three-degree-of-freedom postures of the platform body are adjusted by horizontal displacement actuators arranged among the vibration isolators and the platform body. Influence of vibration of the ground to detection for reference beams is effectively isolated by a zero-position reference device supported by air floatation dampers in the air floatation vibration isolation platform, so that the laser beam zero-position reference stability is improved. Besides, horizontal drifting and angular drifting of the reference beams are detected by the photoelectric detectors and are adjusted by a pair of wedge prisms in real time, and the distance and angles of relative positions of the wedge prisms can be adjusted, so that the reference beams can be collimated, and the vibration isolation performance of the platform can be obviously improved.

The invention discloses an air flotation vibration isolation platform based on a spring zero position criterion and laser self-alignment measurement, and belongs to ultra precise measurement and ultra precision machining equipment. According to the air flotation vibration isolation platform, three or more than three vibration isolators in static pressure air flotation structure are adopted to support an air flotation vibration isolation platform body and a load of the platform body, a beam splitter prism and a photoelectric detector are adopted to achieve platform six-freedom-degree posture monitoring, and an actuator is displaced vertically and horizontally between each vibration isolator and the platform body to achieve six-freedom-degree posture adjustment of the platform body. A zero position criterion device supported by the spring vibration isolators effectively isolates the influences from ground vibration on the detection of a reference beam, and improves the stability of the zero position criterion of a laser beam. The photoelectric detector is adopted to detect the flat flotation and angle flotation of the reference beam, the pair of wedge angle prisms capable of adjusting the space and angle of opposite positions are used for adjusting the flat flotation and angle flotation of the reference beam in real time, the reference beam is calibrated, and the vibration isolation performance of the platform can be obviously improved.

The invention discloses a gas magnetic vibration isolation platform based on an air floatation zero position benchmark and laser auto-collimation measurement, and belongs to an ultra precise measurement and ultraprecision machining device. Three or more vibration isolators with static pressure gas magnetic structures are adopted to support a gas magnetic vibration isolation platform body and a load of the gas magnetic vibration isolation platform body. Platform six degrees of freedom gesture measurement are achieved by adopting a beam splitter prism and a photoelectric detector. The adjustments of the platform six degrees of freedom gesture by a manner that a vertical direction displacement actuator and a horizontal direction displacement actuator are arranged between the vibration isolator and the platform body are achieved. The effect of the vibration of the ground on reference beam measurement can be effectively isolated through a zero position benchmark device supported by an air floating type vibration absorber, and stability of the laser beam zero benchmark is improved. A photoelectricity detector is adopted to measure flat floating and angle drift of the reference beam, a wedge angle prism capable of adjusting relative position gaps and angles is adopted to adjust the flat floating and the angle drift of the reference beam, the reference beam correction is achieved, and vibration isolation performance of the platform can be obviously improved.

The invention discloses a cross beam type power assembly suspension device. The cross beam type power assembly suspension device comprises a front suspender and a rear suspender, wherein one end of the front suspender is fixedly connected with an engine shell, the other end of the front suspender is fixedly connected with frame longitudinal beams, two ends of the rear suspender are fixedly connected with the frame longitudinal beams, the middle part of the rear suspender is fixedly connected with the middle part of a gearbox shell side plate, the rear suspender comprises mushroom-shaped cushion assemblies, rear suspender brackets and an arc-shaped cross beam, two ends of the arc-shaped cross beam are respectively and fixedly connected with the top ends of two mushroom-shaped cushion assemblies, the middle parts of the mushroom-shaped cushion assemblies are fixedly connected with the frame longitudinal beams at the same side through the rear suspender brackets, transition connecting supports are arranged between the mushroom-shaped cushion assemblies and the arc-shaped cross beam, and the top parts of the mushroom-shaped cushion assemblies are fixedly connected with the middle part of the gearbox shell side plate through the transition connecting supports. Due to the design, the longitudinal span of a whole vehicle between the front suspender and the rear suspender is increased, the vibration isolation performance is good, and the assembling space is not occupied.

The invention relates to the technical field of high polymer materials, in particular to a damping silicon material and a preparation method thereof. The damping silicon material comprises the following raw materials in parts by mass: 100 parts of silicone rubber, 20 to 100 parts of fumed silica, 2 to 4 parts of hexamethyl-disilazane, 1 to 5 parts of diphenyl silanediol, 1 to 2 parts of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane, 1 to 3 parts of methacryloxy propyl trimethoxyl silane, 3 to 10 parts of mica powder, 1 to 5 parts of vermiculite powder, and 0.1 to 1 part of molybdenum disulfide. The damping silicon material takes silicone rubber as a base material of a damping material, and can be normally operated at 50 to 150 DEG C; in addition, crystallization and vitrification of thematerial do not occur, and structural damage cannot occur; furthermore, the damping capacity of the silicon rubber material is greatly enhanced through the adding of the molybdenum disulfide to adjustthe damping capacity of the silicone rubber material, so that the material can be normally applied to the field of vibration insulation and noise reduction, and the vibration isolation performance ofa silicon material vibration isolator is enhanced.

The invention provides a passive air spring shock-absorption mechanism provided with a universal damper and a variable rubber membrane. The passive air spring shock-absorption mechanism provided withthe universal damper and the variable rubber membrane comprises damping oil (1), the universal damper (2), a central swing rod (3), a swing rod (4), a load limiting disc (5), a load disc (6), a swingrod ball (7), a rubber membrane fixing piece (8), the variable rubber membrane (9), a center cavity (10), an auxiliary air chamber (11), a main air chamber shell (12), a main air chamber (13), an auxiliary air chamber shell (14), and a damping hole (15). When the passive air spring shock-absorption mechanism is vibrated in the horizontal direction, the central swing rod moves horizontally, a damping effect is achieved through the damping oil and the universal damper jointly, and the vibration isolation performance in the horizontal direction is improved. Meanwhile, when the passive air springshock-absorption mechanism is vibrated, the central cavity moves to drive the variable rubber membrane to compress gas, and a damping effect is achieved when the compressed gas passes through the damping hole, so that the vibration isolation performance in the horizontal direction is further improved. The passive air spring shock-absorption mechanism is high in universality, simple in structure and good in manufacturability and has a broad application prospect.

The invention discloses an annular wavy periodic floating raft, comprising an upper panel, a plurality of juxtaposed intermediate annular wavy structural members and a lower panel, wherein a stabilizing ring is arranged in the middle of the annular wavy structural members to increase structural rigidity and stability; The small panel of each annular wavy structure is connected with the upper paneland the lower panel. The annular wavy periodic floating raft of the invention has high initial stiffness, can effectively absorb vibration energy, and has good recovery after tension and compression;meanwhile, when the vibration propagates along the height direction through the annular wavy structure, the stopband characteristics of the periodic structure are formed and the waveform conversion occurs, so that the vibration is greatly attenuated and the safety and reliability are strong. The invention also discloses a manufacturing method of an annular wavy periodic floating raft.

The invention discloses a swivel chair easy to lock. The swivel chair comprises a cushion, a support shaft, a base and universal wheels from top to bottom, wherein the universal wheels are arranged onthe base; mounting shafts of the universal wheels are sleeved by lower gaskets, springs and upper gaskets; pressure sensors are arranged at connecting parts of the upper gaskets and the base; the pressure sensors are connected with control devices; the control devices are connected with reminding device; annular flanges and baffle pieces are arranged on rotating wheels of the universal wheels; wrapping flanges matched with the flanges are arranged on wheel shaft supports; the wrapping flanges are arranged between the flanges and the baffle pieces in a radial direction; teeth are arranged on outer circumferential walls of the annular grooves; locking rods and return devices are arranged on the wheel shaft supports; the locking rods are connected with the return devices; the return devicesare connected with control devices. The swivel chair is good in security, comfort and flexibility, and meanwhile has the characteristic of being convenient to lock.

The invention discloses a vibration isolation and reduction support based on memory alloy. The vibration isolation and reduction support comprises a plate spring set, an upper panel and a lower panel. The plate spring set is made of memory metal. During work, when the upper panel or the lower panel is under the action of vibration loads, the relative vertical distance between the upper panel and the lower panel can be changed, on one hand, the memory alloy plate spring set is compressed and deformed to absorb energy or recovers to the original shape to release energy, and therefore the vibration isolation and reduction aim is achieved through the specific structure and material characteristics of the memory alloy plate spring set; and on the other hand, a memory alloy rope is stretched or retracted and deformed along with alternate deformation of the memory alloy plate spring set, and large hysteretic energy consumption and restoring force are provided through the structure of the memory alloy rope and the functions of materials. The vibration isolation and reduction support can effectively resist vertical vibration, the damping effect is good, the energy consumption capacity is high, extremely high reliability and stability are achieved during long-term work, automatic recovery can be achieved after vibration is conducted again, and no reset device needs to be additionally arranged.

The invention discloses a rotary wing unmanned aerial vehicle platform which comprises a device platform and a power generation device. The device platform comprises an upper plate and a lower plate which are sequentially arranged from top to bottom, the upper plate is connected with the lower plate through a connecting column, and the power generation device is mounted below the lower plate in asuspension manner. The rotary wing unmanned aerial vehicle platform has the advantages that a rotary wing unmanned aerial vehicle can have high loading capacity, loading balance of the rotary wing unmanned aerial vehicle can be ensured, good damping performance and good cooling performance of the rotary wing unmanned aerial vehicle are ensured and the like.

An embodiment of the invention provides a suspension system assembly and an automobile. The automobile comprises a rear axle assembly, a frame assembly and a suspension system assembly. The suspensionsystem assembly comprises a coil spring which is arranged between the rear axle assembly and the frame assembly and fixed to the rear axle assembly, the coil spring comprises a sparse ring structureand a dense ring structure connected with the sparse ring structure, the pitch diameter of the sparse ring structure is identical to that of the dense ring structure, and the spring pitch of the densering structure is smaller than that of the sparse ring structure. The suspension system assembly has advantages that rigidity can be correspondingly generated according to automobile loads, and accordingly the vibration isolation performance can be improved.

The invention discloses a high-temperature-resistant and anti-radiation elastic pipe clamp. The high-temperature-resistant and anti-radiation elastic pipe clamp comprises outer plates and a support frame, wherein an inner plate is connected to each of the inner sides of the two outer plates through a lining structure, and the two ends of each of the two outer plates are fixed together through a locking bolt separately; and the support frame comprises vertical plates and a bottom plate, the two vertical plates are arranged at the two ends of the lower outer plate in the two outer plates separately, and the two vertical plates are both welded to the bottom plate. According to the high-temperature-resistant and anti-radiation elastic pipe clamp, a spring made from a multielement alloy, a steel wire rope or metal rubber can be adopted as each lining structure, and a high-temperature-resistant and anti-radiation heavy elastic pipe clamp design is completed, so that the pipe clamp is high invibration reduction capacity, and capable of reducing transfer for a fluid and structural vibration in a pipeline to the support frame, and obtaining excellent vibration reduction and isolation performance; and the metal rubber, the spring or the steel wire rope has a characteristic of being not softened at a high temperature, and is capable of improving the high-temperature-resistant and anti-radiation capacity of the material of the pipe clamp, so that the service life of the pipe clamp is prolonged.

The invention discloses a Coriolis mass flowmeter and a sensor assembly thereof. The flowmeter includes an upstream pipeline connector used for being connected to an upstream fluid pipeline and a downstream pipeline connector used for being connected with a downstream fluid pipeline. The sensor assembly comprises a fluid flow pipe, a first vibration isolation piece and a connection structure; thefluid flow pipe is provided with a fluid input pipeline, a fluid output pipeline and a double loop pipeline connected between the input pipeline and the output pipeline in series; the first vibrationisolation piece is arranged on the double loop pipeline to divide the double loop pipeline into a vibration pipeline and a non-vibration pipeline; one end of the connection structure is fixedly connected to the double loop pipeline, and the other end of the connection structure is fixedly connected to the upstream pipeline connector and/or the downstream pipeline connector to enable the non-vibration pipeline to be flexibly connected with the upstream pipeline connector and/or the downstream pipeline connector correspondingly.

The invention relates to an optimum flat plate structure design method for improving transient vibration isolation performance. The method comprises the following steps of: constructing a flat plate structure transient vibration response calculation model; giving an initial state of a flat plate structure, transient excitation suffered by the flat plate structure, a to-be-optimized transient vibration index and a boundary parameter adjustable range; carrying out optimum solution search by combining known parameters of the flat plate structure and utilizing an optimization algorithm; obtainingan optimum boundary condition of the flat plate structure; and guiding optimum design of the flat plate structure according to the optimum boundary condition. According to the method, the transient vibration isolation performance of flat plate structure can be maximized without changing own parameters of flat plates.

The structure of a new type of vibration-isolating bearing seat is composed of a bearing and a spherical bushing in the structure of the bearing seat, and the spherical bushing of the bearing is connected with a rubber vibration-isolating ferrule, and is installed into the large hole of the bracket and the bracket body. The two blocking covers are respectively fixed on the bracket by bolts, and the blocking covers are connected with the rubber vibration isolating ring; the invention can automatically adapt to adjust the radial error of the shaft, achieve a good anti-vibration effect, and reduce the wear of the slender shaft and the bearing. prolong its service life.

The invention discloses an anti-rollover swivel chair which comprises a cushion, wherein a support shaft is arranged under the seat cushion, a base is arranged under the support shaft; universal wheels are arranged on the base; each universal wheel comprises a mounting shaft; mounting holes matched with the mounting shaft are formed in the base; lower gaskets, springs and upper gaskets sequentially sleeve the mounting shafts from bottom to top; the lower gaskets are fixed on the mounting shafts; the upper gaskets are fixed on the base; pressure sensors are arranged at connecting parts of the upper gaskets and the base; a control device is arranged on the support shaft; the control device is connected with the pressure sensor; a reminding device is also connected to the control device. Theanti-rollover swivel chair provided by the invention has better safety and comfort.

The invention provides a suspension structure and a vehicle, and belongs to the field of vehicles, the suspension structure comprises a driving end support, a driven end support, a connecting rod mechanism and an elastic element, the driven end support is connected with the driving end support through the connecting rod mechanism, and at least one pair of hinge points with opposite movement directions of the connecting rod mechanism are connected through the elastic element; a limiting elastic unit is further arranged on the inner wall of the driving end support. The elastic force providing direction of the suspension structure can be changed, the rigidity of a suspension system can be smaller when the stress is larger, and the vibration isolation performance of the suspension system is improved under the working condition of large torque.

The invention discloses an anti-vibration unit for electronic equipment, and solves the problems that existing anti-vibration equipment relies on import and is expensive in price, complex in structureand the like. The anti-vibration unit for the electronic equipment comprises a lower fixed frame, a lower anti-vibration foot pin, a lower-layer anti-vibration plate, a lower-layer wave spring, an upper fixed frame, an upper-layer wave spring, an upper-layer anti-vibration plate, an upper-layer anti-vibration foot pin A and an upper-layer anti-vibration foot pin B, wherein the lower anti-vibration foot pin is arranged at the bottom of the lower-layer anti-vibration plate; the lower-layer anti-vibration plate is arranged at the bottom of the lower fixed frame; the lower-layer wave spring is arranged on the upper part of the lower-layer anti-vibration plate and is in contact with the lower-layer anti-vibration plate; the upper fixed frame is arranged on the upper part of the lower-layer wave spring and is in contact with the lower-layer wave spring; the upper-layer wave spring is arranged at the bottom of the upper fixed frame; the upper-layer anti-vibration plate is arranged on the upper part of the upper fixed frame and is in contact with the upper-layer wave spring; and the upper-layer anti-vibration foot pin A and the upper-layer ant-vibration foot pin B are arranged at the topof the upper-layer anti-vibration plate.