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58results about How to "Reduce longitudinal vibration" patented technology
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Sawing machine, cutting-off method, and method of reducing noise
InactiveUS20060144202A1Reduce noiseReduce longitudinal vibrationMetal sawing devicesSampled-variable control systemsEngineeringDrive wheel
A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.
Owner:AMADA CO LTD
Double-station automatic feeding device for silicon steel sheet welding
InactiveCN106425251AAvoid shaking and misalignmentImprove work efficiencyWelding/cutting auxillary devicesAuxillary welding devicesReciprocating motionEngineering
The invention discloses a double-station automatic feeding device for silicon steel sheet welding. The double-station automatic feeding device comprises a workbench provided with a welding station, and a welding mechanism and a pressurization mechanism which are arranged above the workbench and are opposite to the welding station. The double-station automatic feeding device is characterized in that parallel guide rails which pass through the welding station are arranged on the workbench; two sliding carrying tables used for placing silicon steel sheet locating jigs are arranged on the parallel guide rails in a sliding manner; the two sliding carrying tables are connected with one translation driving mechanism, and are driven to synchronously move on the parallel guide rails through the translation driving mechanism; or, each of the two sliding carrying tables is connected with one translation driving mechanism, and is driven to independently perform reciprocating motion on the parallel guide rails through the corresponding translation driving mechanism. According to the double-station automatic feeding device, two stations are arranged to alternately feed materials, and when one of the stations operates on the welding station, the other station can be used for stacking silicon steel sheets in advance, so that the working efficiency is greatly improved; and besides, the sliding carrying tables are controlled to horizontally move through the translation driving mechanisms, the stationarity is good, and the welding quality can be improved.
Owner:KUNSHAN LIMAHE AUTOMATION SCI & TECH
Novel suspension bridge center buckle device
ActiveCN111236038AReduce longitudinal vibrationIncrease lateral stiffnessSuspension bridgeNon-rotating vibration suppressionLongitudinal vibrationEngineering
The invention discloses a novel suspension bridge center buckle device which comprises a cable clamp, a sling upper pulley, a double-strand sling, a vibration reduction frame, a sling lower pulley, adouble-strand sling fixing device, a space type inclined rod, a viscous damper and a space type inclined rod fixing device. The cable clamp is fixed to the midspan position of a suspension bridge maincable, and the upper ends of the suspension cable upper pulleys and the upper ends of the inclined rods are fixed to the cable clamp. The double-strand slings form a closed loop through upper and lower pulleys, and a plurality of damping frames are arranged in the middle of the double-strand slings; and the viscous damper is fixed in the middle of the inclined rod. The sling forms a closed loop through the upper pulley and the lower pulley, the vibration reduction frame is arranged, and the viscous damper is arranged on the inclined rod, so that longitudinal vibration of the short sling is reduced, and damage to an anchor head of the sling due to longitudinal reciprocating motion is prevented; by arranging the space type inclined rods, transverse vibration of the short slings is reduced.The device can be arranged in the midspan of the suspension bridge and used for multi-directional damping of the midspan short slings.
Owner:SOUTHEAST UNIV
Building anti-seismic crane support and using method thereof
ActiveCN110043743AReduce longitudinal vibrationReduce vibrationPipe supportsPipe elementsEngineering
Owner:深圳市置华机电设备有限公司
Medical oxygen cylinder moving and fixing apparatus
PendingCN108953997APrevent dumpingReduce shakingVessel mounting detailsContainer filling methodsFixed frameEngineering
The invention relates to the field of medical technologies, and concretely relates to a medical oxygen cylinder moving and fixing apparatus. The apparatus comprises a fixing frame, a connecting part,a clamp, springs, fixing parts, a bottom plate, lifting devices and a bottom wheels, the connecting part is arranged on the front sidewall of the fixing frame, the clamp is arranged at the front sideof the connecting part, the springs are arranged on the inner wall of the clamp, the fixing parts are arranged at one ends of the springs, the bottom plate is arranged at the bottom of the fixing frame, the central part of the top of the bottom plate is provided with an arc-shaped concave pit, and the lifting devices are arranged at the left side and the right side of the fixing frame respectively. The apparatus is simple and convenient to use, and can fix an oxygen cylinder to avoid the dumping of the oxygen cylinder in the use process and reduce the shaking of the oxygen cylinder in the movement and use process; and the apparatus also can be easily moved and fixed, and is convenient for shifting the oxygen cylinder in the use process.
Owner:武汉中智德远科技开发有限公司
Bidirectional anti-fatigue short circuit for drill column
InactiveCN101705794ASimple structureEasy to manufactureDrilling rodsDrilling casingsUnderbalanced drillingHyperboloid structure
The invention discloses a bidirectional anti-fatigue short circuit for a drill column used in the drilling engineering of the petroleum industry, particularly used for air under-balance drilling. The bidirectional anti-fatigue short circuit mainly comprises an upper joint, a short circuit main body and a lower joint. The short circuit main body consists of a spline outer barrel, a damping piston, an oil cylinder, a spring outer barrel, an upper disc spring set, a spring rod, a lower disc spring set and a buffering rubber. The disc spring sets and the damping piston are connected in series so as to play a role in retarding or absorbing longitudinal vibration simultaneously; the buffering rubber outside a spline can play a role in retarding peripheral vibration to reduce the adverse effect of accidental torque on the drill column; and through aerodynamic finite element simulation analysis for a short circuit shell structure, a single-blade hyperboloid structure optimized at the joint can reduce the erosion effect caused by high-speed airflow during air under-balance drilling so as to prolong the service life, improve the work efficiency and effectively protect a drill bit and the drill column. The bidirectional anti-fatigue short circuit has the advantages of simple structure, easy manufacture, detachment and easy maintenance.
Owner:SOUTHWEST PETROLEUM UNIV
Manual emery wire cutting machine
PendingCN107520892AImprove working environmentConstant lengthMetal working apparatusWire cuttingGear transmission
The invention provides a manual emery wire cutting machine. The manual emery wire cutting machine comprises a machine body, a gear transmission device, a crank slide block guide rod mechanism, wire winding and unwinding devices, a fixed supporting and float pressing device, a wire carrying mechanism and a fixed worktable. The whole working process is as follows: a motor drives a driving gear to rotate to enable two working gears, engaged with the driving gear up and down and with the same geometric sizes, to rotate; crank shafts with a phase difference of 180 degrees and the same eccentric distance are respectively mounted on the working gears; through connection of rolling bearings and slide block guide rods, the rotating motion of the working gears is converted to the linear reciprocating motion of the upper and lower slide block guide rods; meanwhile, the slide block guide rods are provided with the wire winding and unwinding devices for fixing, replacing and changing working sections of emery wires; and nonmetal plates are pressed by the float pressing and fixed supporting device, so that the instant advancing motion distance and speed of the emery wires mounted on the upper and lower slide block guide rods are equal to the instant retreating motion distance and speed, and the reciprocating cutting of nonmetal workpieces is finished.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Electric vehicle
InactiveUS20170028983A1Reduce longitudinal vibrationReduce compliancePropulsion by batteries/cellsMotor depositionDrive wheelElectric vehicle
An electric vehicle includes electric motors imparting driving forces to the corresponding driving wheels, a brake device imparting braking forces to the driving wheels, a control unit which calculates final target braking-driving forces (Tti) of the driving wheels and controls the electric motors and the brake device so that braking-driving forces of the driving wheels conform to the corresponding final target braking-driving forces. The control unit calculates longitudinal speeds (ΔVi) of the wheels relative to a vehicle body; calculates target correction amounts (Tt2i) of the target braking-driving forces for reducing in magnitude longitudinal speeds of the driving wheels relative to the vehicle body based on the relative longitudinal speeds; and corrects the target braking-driving forces (Tt1i) with the target correction amounts (Tt2i) to calculate final target braking-driving forces (Tti) of the driving wheels.
Owner:TOYOTA JIDOSHA KK
Composite plate emery wire cutting machine
ActiveCN106217659AReduce horizontalReduce longitudinal vibrationWorking accessoriesStone-like material working toolsControl systemWire cutting
The invention provides a composite plate emery wire cutting machine. The composite plate emery wire cutting machine comprises a coordinate table, a wire conveying mechanism, a fixed holding device, a floating pressing vibration damper, a vacuum pump powder suction system and a digital program control system. According to the working process of the cutting machine, a to-be-cut nonmetallic plate is clamped through clamps on the coordinate table, a steel ball on the fixed holding device holds the nonmetallic plate, and a steel ball on the floating pressing vibration damper presses the nonmetallic plate so as to reduce vibration and frictional resistance of the nonmetallic plate during cutting; an emery wire deviation-proof device reduces transverse and longitudinal vibration during emery wire cutting; the wire conveying mechanism makes an emery wire move, the digital program control system operates a program to control the coordinate table to drive the clamp X and the clamp Y clamping a workpiece to move, and then the cutting shape of the machined workpiece is controlled; and nonmetallic powder generated during cutting is sucked and cleared away by the vacuum pump powder suction system always operating during machining.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Earthquake-proof assembled concrete beam column connection method
ActiveCN110565799AImprove integrityImprove bearing capacityProtective buildings/sheltersShock proofingConcrete beamsBeam column
The invention relates to the technical field of a prefabricated assembled concrete structure in civil engineering, and concretely discloses an earthquake-proof assembled concrete beam column connection method. The method comprises the following steps of (1) installing a prefabricated column; (2) installing an elastic gasket; (3) installing a prefabricated beam; (4) fastening screw bolts; (5) performing grouting in reserved holes; and (6) filling mortar into grooves. The connection method has the advantages that the high ductility of prestress bars, the elasticity of the elastic gasket, and thesupport force of screw bolts and a bracket are used for providing good earthquake-proof performance and shear strength for an assembled beam column connection joint.
Owner:浙江中清大建筑工业有限公司 +1
Elevator
The invention provides a compact vibration absorption device for an elevator effectively dampening vertical vibration of low frequency and being stored in an outside dimension of a car frame. The elevator comprises a car frame 6 vertically moving in a hoistway 1; a car 5 provided in the car frame 6; a guide rail 2 for guiding the vertical movement of the car frame 6 and provided so as to be vertically extended; and a hanging rope 3 for supporting and lifting the car frame 6 through a pulley 4 below the car provided at a lower part of the car frame 6. A vertically moving dynamic damper 10 is provided below the car frame 6.
Owner:HITACHI LTD +1
Vibration reduction optimization method for host system of tunnel boring machine
InactiveUS20200285787A1Simple methodGuaranteed uptimeGeometric CADSpringsFatigue damageSupporting system
A vibration reduction optimization method for host system of a tunnel boring machine to reduce the vibration of the host and prevent fatigue damage at the critical weak position of the TBM host system. Vibration reduction optimization of the TBM host system is achieved by using a damping alloy material to replace the cutterhead system's material and the connecting flange's material and adding a magnetorheological damper at the support system and the propulsion system. This prevents sudden incidents in the TBM host system and ensures that the TBM works safely and reliably.
Owner:DALIAN UNIV OF TECH
Sawing machine, cutting-off method, and method of reducing noise
InactiveUS7526985B2Simple configurationEasy to cutMetal sawing devicesAutomatic control devicesDrive wheelEngineering
A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.
Owner:AMADA CO LTD
Novel height adjustable square speed bump
InactiveCN109610364AElasticRealize the deceleration effectTraffic signalsRoad signsSpeed bumpTransverse pressure
The invention discloses a novel height adjustable square speed bump which comprises a base. A groove is formed in the base, a connecting column is fixedly connected to a bottom position in the base, the connecting rod is arranged in the groove, a non-Newton fluid shock absorbing ball is arranged in the connecting column, a transverse pressure plate is arranged at the upper end of the non-Newton fluid shock absorbing ball, a push rod is fixedly connected to the upper surface of the transverse pressure plate, a mounting plate is fixedly connected to the upper end of the push rod, a square speedbump main body is fixedly connected to the upper surface of the mounting plate, two oblique columns are rotatably connected to the bottom position in the base through a rotating shaft, chutes A are formed in the upper surfaces of the two oblique columns, a lower supporting column is slidably connected in each chute A, and an upper supporting column is arranged above the lower supporting column. The height of the novel height adjustable square speed bump can be changed, so that people feel more comfortable when an automobile passes through the novel height adjustable square speed bump, and thenovel height adjustable square speed bump is reasonable in design and long in service life.
Owner:YANCHENG CITY JUNTAI TRANSPORTATION FACILITY CO LTD
Adjustable computer host protection holder
InactiveCN107229310AAdjustable lengthEasy to placeNon-rotating vibration suppressionDigital data processing detailsLongitudinal vibrationComputer engineering
The invention discloses an adjustable computer host protection holder which comprises a base, wherein a base groove is formed in the middle of the upper end of the base; a positioning rod is arranged in the middle of the bottom of the base groove; the outer side of the positioning rod is sleeved by a damping spring; a mounting base is arranged inside the bottom groove; a groove is formed in the lower part of the mounting base; a positioning rod groove is formed in the middle of the top of the groove; a computer host mounting groove is formed in the middle of the upper end of the mounting base; support plates are arranged at the front and rear parts of the upper end of the mounting base; moving plates are connected with the bottoms of the support plates; and chutes are formed in side walls of the computer host mounting groove. The mounting base collides with the bottom of the base groove, an effect of reducing longitudinal vibration is achieved due to the damping spring, and moreover, as two ends of the moving plates are in sliding connection with interiors of the chutes, the length of the computer host mounting groove can be adjusted, and thus computer hosts of different models can be placed inside the adjustable computer host protection holder.
Owner:安徽英冉信息咨询有限公司
Secondary rock breaking drill bit for assisting pressurizing flow back through spiral blade
InactiveCN109898998AExtended service lifeReduce vibration amplitudeDrill bitsConstructionsWell drillingSpiral blade
The invention provides a secondary rock breaking drill bit for assisting pressurizing flow back through a spiral blade. The secondary rock breaking drill bit comprises a drill bit body, the blade anda cone; the blade is arranged at the top end of the drill bit body, and the blade and the drill bit body are of an integrated structure; and a gauge protection part is arranged on the outer wall of the blade. Through improvement for the rock breaking drill bit, primary cutting is conducted at the bottom of the drill bit to form primary rock debris, the rock debris returns to the cone under carrying flow back of a well-drilling fluid, the cone can conduct secondary breaking, the spiral blade slides in the longitudinal direction to be in surface contact with the well wall, a surface contact modeof the spiral blade is far greater than a line contact mode of a traditional straight blade, longitudinal vibration in the well-drilling process can be reduced, the rock debris generated by cutting of the drill bit flows back upwards under the action of vertical component force of the spiral face, fluid carrying the rock debris generates reactive force on the spiral blade surface, the drill bit can be pressurized, and thus the problems and deficiencies proposed in the background technology are effectively solved and overcome.
Owner:LANZHOU CITY UNIV
Shipborne satellite communication equipment and operation method thereof
InactiveCN112201925AExtended service lifeConvenient hair extensionAntenna supports/mountingsAntenna adaptation in movable bodiesTelecommunicationsDrive wheel
The invention relates to the technical field of communication equipment, and discloses shipborne satellite communication equipment and an operation method thereof. The shipborne satellite communication equipment comprises a rectangular mounting plate and a first rectangular bearing plate, wherein buffer protection devices are arranged on the left side, the right side, the front side and the rear side of the upper surface of the rectangular mounting plate, the left side of the upper surface of the first rectangular bearing plate is rotationally connected with a first rotating shaft, and the upper surface of the first rotating shaft is fixedly connected with a rectangular rotating plate. According to the shipborne satellite communication equipment, by arranging a first motor, a third rotating shaft, a transmission worm rod, a driving wheel, a driven wheel, a belt and a transmission worm wheel, a second rotating shaft can conveniently and stably drive a second fixed connecting block and athird rectangular bearing plate to rotate, so that the angle of a communication antenna can be conveniently and stably adjusted; and the shipborne satellite communication equipment is simple in structure, convenient to implement and high in flexibility, signals can be conveniently received and sent by the communication antenna, and the service life of the communication antenna is greatly prolonged.
Owner:广州高腾科技有限公司
Embedded high-speed online machine vision detection method and device
InactiveCN111957584AReduce longitudinal vibrationAvoid image blurDispersed particle filtrationSortingMachine visionEngineering
The invention discloses an embedded high-speed online machine vision detection method and device, and relates to the technical field of vision detection, in order to solve the problem that the existing embedded high-speed online machine vision detection device has weak shock resistance capability, is easily subjected to vibration to make the internal precision parts damaged to affect its use, willresult in blurred imaging caused by vibration to affect the precision of the device detection, and will be easily affected by the unstable light from the outside, causing the device to have the problem of false detection. A support bracket is installed under a main body bracket, an anti-dropping chuck is installed at the lower end of the main body bracket, the anti-dropping chuck is welded and connected to the main body bracket, a bottom shock-absorbing spring is installed at the lower end of the support bracket, the bottom shock-absorbing spring is welded to the support bracket and the anti-dropping chuck, both sides in the support bracket are installed with lateral damping springs, and the lateral damping springs are welded and connected to the support bracket and the main body bracket.
Owner:杭州蒲丰视觉检测科技有限公司
Device for feeding sheets to a sheet stack
InactiveCN102190191AReduce longitudinal vibrationBig vibrationFunction indicatorsPrinting press partsLeading edgeDrive shaft
The invention relates to a device for feeding sheets to a sheet stack. In a delivery of a sheet-processing machine, in particular a printing press, provision is made for chain gripper systems for holding the sheets to be transported at the leading and trailing edges thereof. The holding devices are configured such that they can be displaced relative to one another for the purpose of format adjustment. The chain gripper system has a sprocket drive shaft and a sprocket deflection shaft for the chains of the chain gripper system. Here, provision is made for both the sprocket drive shaft and the sprocket deflection shaft to have a clutch.
Owner:HEIDELBERGER DRUCKMASCHINEN AG
A road and bridge shock-absorbing support and its installation method
ActiveCN111411575BReduce vibrationReduce longitudinal vibrationBridge structural detailsBridge erection/assemblyShock avoidanceArchitectural engineering
Owner:XINGTAI ROAD & BRIDGE CONSTR GENERAL
Multi-chip band saw blade
ActiveCN111054977ACompensation for wearReduce cutting forceMetal sawing toolsEngineeringOblique cutting
The invention discloses a multi-chip band saw blade. The band saw blade comprises a saw blade body and saw teeth located on the saw blade body, 15 saw teeth arranged in sequence form a main tooth set,and each main tooth set comprises a first sub-tooth set, a second sub-tooth set, a third sub-tooth set, a fourth sub-tooth set and a fifth sub-tooth set; and each sub-tooth set comprises a first sawtooth, a second sawtooth and a third sawtooth which are arranged in sequence, the first sawtooth is a straight tooth, and the second sawtooth and the third sawtooth are separately a left dividing toothand right dividing tooth. By controlling the different heights of the teeth and controlling the tooth dividing amount, the tooth profile divides a chip into 18 chips during cutting, and the tooth profile can remarkably reduce cutting force in the cutting process and the cutting force in the saw cutting process; and the problems of oblique cutting, core digging, immovable cutting, intolerance to cutting and the like caused by excessive abrasion of tooth tips are avoided.
Owner:湖南泰嘉智能科技有限公司
Main bearing cover for IC engine
ActiveCN1971072AReduce in quantityReduce machining surfaceCrankshaft bearingsMain bearingThermal deformation
The invention discloses a main bearing cap of gas engine, which makes use of connection to connect various bearing caps together so as to form the whole main bearing cap. In the whole main bearing cap the rigidity of main bearing seat of die-casting body is improved greatly. Mechanical deformation, thermal deformation and portrait vibration of body are decreased. The rigidity of main bearing cap, coaxiality and Cylindricity of the hole of main bearing are improved at a great extent so as to improve the pressure-bearing ability of bearing and decrease the abrasion of friction pair. In addition, back oil seal seat is cast on the main bearing cap and a boss is cast on the lower of main bearing cap to install filtering so as to decrease the parts number of gas engine, decrease mechanical machining faces, decrease the production cost and improve the production efficiency.
Owner:BYD CO LTD
A method for adding a magneto-rheological damper to a tbm support cylinder
ActiveCN109268434BGood vibration dampingReduce longitudinal vibrationSpringsNon-rotating vibration suppressionClassical mechanicsTunnel boring machine
The invention provides a method of adding TBM (tunnel boring machine) support cylinder magnetorheological dampers, is intended mainly to solve the problem that the existing full-face hard rock tunneling machine vibrates during tunneling, and is intended to relieve or decrease the damage due to severe vibrations of a main unit during operating. According to the technical scheme, magnetorheologicaldampers are added respectively between a top shield and a main drive, between a left upper shield and the main drive, between a right upper shield and the main drive, between a left shield and the main drive, and between a right shield and the main drive, so that longitudinal and transverse vibrations generated by the main unit during construction can be relieved, tunneling stability of the main unit can be improved, and better structural reliability and longer life can be imparted to the main unit.
Owner:DALIAN UNIV OF TECH
Acoustic projector and method of manufacture
ActiveUS7483339B2Reduce in quantityStiffens the longitudinal assemblyPiezoelectric/electrostriction/magnetostriction machinesPiezoelectric/electrostrictive transducersUnderwater acousticsBiomedical engineering
An underwater acoustic projector comprising one or more cylindrical shell segments (8), each shell segment (8) having an even number of drivers (10) mounted therein, and the method of manufacturing said projector. The shell segments (8) preferably are formed with a longitudinal slot (14) and have arcuate segments (16), preferably of a dielectric material extending along the sides of the slot (14) for retaining the drivers (10) within the shell segments (8). The combined lengths of the driver is between 70% and 90% of the shell segment (8) length.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC
Main bearing cover for IC engine
ActiveCN100588845CIncrease stiffnessReduce longitudinal vibrationCrankshaft bearingsFriction reductionDie casting
The invention discloses a main bearing cap of gas engine, which makes use of connection to connect various bearing caps together so as to form the whole main bearing cap. In the whole main bearing capthe rigidity of main bearing seat of die-casting body is improved greatly. Mechanical deformation, thermal deformation and portrait vibration of body are decreased. The rigidity of main bearing cap,coaxiality and Cylindricity of the hole of main bearing are improved at a great extent so as to improve the pressure-bearing ability of bearing and decrease the abrasion of friction pair. In addition,back oil seal seat is cast on the main bearing cap and a boss is cast on the lower of main bearing cap to install filtering so as to decrease the parts number of gas engine, decrease mechanical machining faces, decrease the production cost and improve the production efficiency.
Owner:BYD CO LTD
A multi-chip band saw blade
ActiveCN111054977BCompensation for wearReduce cutting forceMetal sawing toolsEngineeringOblique cutting
The invention discloses a multi-chip band saw blade. The band saw blade comprises a saw blade body and saw teeth located on the saw blade body, 15 saw teeth arranged in sequence form a main tooth set,and each main tooth set comprises a first sub-tooth set, a second sub-tooth set, a third sub-tooth set, a fourth sub-tooth set and a fifth sub-tooth set; and each sub-tooth set comprises a first sawtooth, a second sawtooth and a third sawtooth which are arranged in sequence, the first sawtooth is a straight tooth, and the second sawtooth and the third sawtooth are separately a left dividing toothand right dividing tooth. By controlling the different heights of the teeth and controlling the tooth dividing amount, the tooth profile divides a chip into 18 chips during cutting, and the tooth profile can remarkably reduce cutting force in the cutting process and the cutting force in the saw cutting process; and the problems of oblique cutting, core digging, immovable cutting, intolerance to cutting and the like caused by excessive abrasion of tooth tips are avoided.
Owner:湖南泰嘉智能科技有限公司
Elevator
ActiveCN1281473CReduce longitudinal vibrationElevatorsBuilding liftsLongitudinal vibrationEngineering
An elevator comprising a car frame (6) moving up and down in a hoistway (1), a car (5) installed in the car frame (6), and a guide for guiding the car frame (6) the lifting movement, the guide rail (2) that is arranged along the up and down direction, and via a plurality of car lower pulleys (4) that are arranged below the car frame (6), support the car frame ( 6) A sling (3) for lifting and lowering, wherein a dynamic shock absorber (10) moving up and down is provided below the car frame (6). Therefore, the vibration-absorbing device with a small structure for this elevator can not only effectively attenuate low-frequency longitudinal vibrations, but also can be accommodated within the external dimensions of the car frame.
Owner:HITACHI LTD +1
Road and bridge shock-proof support and mounting method thereof
ActiveCN111411575AReduce vibrationReduce longitudinal vibrationBridge structural detailsBridge erection/assemblyShock avoidanceArchitectural engineering
Owner:XINGTAI ROAD & BRIDGE CONSTR GENERAL
Synchronous belt supporting device
Owner:SHANDONG IND TECH RES INST OF ZHEJIANG UNIV +2
A New Central Buckle Device for Suspension Bridge
ActiveCN111236038BReduce longitudinal vibrationIncrease lateral stiffnessSuspension bridgeNon-rotating vibration suppressionViscous dampingReciprocating motion
The invention discloses a novel central buckle device of a suspension bridge, which comprises a cable clamp, an upper pulley of a sling, a double-strand sling, a shock absorbing frame, a lower pulley of a sling, a fixing device of a double-strand sling, a space type oblique rod, and viscous damping device and a space-type oblique rod fixing device; the cable clamp is fixed at the mid-span of the main cable of the suspension bridge, and the upper pulley of the sling and the upper end of the oblique rod are fixed to the cable clamp; A number of damping frames are provided; the viscous damper is fixed in the middle of the inclined rod. The invention reduces the longitudinal vibration of the short sling and prevents the anchor head of the sling from being damaged due to longitudinal reciprocating motion by passing the sling through the upper and lower pulleys to form a closed loop, setting a vibration damping frame, and setting a viscous damper on the inclined rod; The lateral vibration of the short sling is reduced by setting the space type oblique rod. The invention can be arranged in the mid-span of the suspension bridge, and is used for multi-directional vibration reduction of the mid-span and short suspension cables.
Owner:SOUTHEAST UNIV
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