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54results about How to "Large deformation range" patented technology
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Self-resetting column foot node based on shape memory alloy bar and steel structure building
ActiveCN109057018AImprove bearing capacityDoes not lose initial stiffnessProtective buildings/sheltersShock proofingShape-memory alloyAlloy
The invention discloses a self-resetting column foot node based on a shape memory alloy bar and a steel structure building. The self-resetting column foot node solves the problems in the prior art ofhigh rigidity after the nominal yield of the node and easy loss of initial rigidity after an earthquake occurs, and has the advantages of good energy consumption performance and self-resetting capability under the action of earthquake load, after suffering from an excessive deformation or at low temperature, the initial rigidity is not lost, and the structural steel column and the column foot nodeare not damaged; according to the technical scheme, the self-resetting column foot node and the steel structure building comprises a concrete foundation, a bottom plate is fixed on the upper part ofthe concrete foundation, the bottom plate is connected with a vertical supporting column through an anti-shear connecting plate, the two sides of the support column are symmetrically provided with ananchor plate, the anchor plate and the bottom plate are connected with a shape memory alloy rod through a hinged support, the shape memory alloy rod provides an energy consumption performance and a self-resetting performance for the nodes while providing rotational rigidity; the circumference of the shape memory alloy rod is coated with a sleeve, and the sleeve can restrain the buckling of the shape memory alloy rod under compression so as to improve the ductility and bearing capacity of the shape memory alloy rod when the shape memory alloy rod is pressed.
Owner:SHANDONG UNIV
Flexible pneumatic mechanical arm achieving multifunctional gripping
Owner:CENT SOUTH UNIV
Laser texture bionic capacitive flexible pressure sensor and preparation method thereof
ActiveCN112729625ATemplates are fastLow detection limitForce measurementThin membraneConductive materials
The invention discloses a laser texture bionic capacitive flexible pressure sensor and a preparation method thereof, which belong to the field of flexible pressure sensors. The bionic capacitive flexible pressure sensor sequentially comprises an upper electrode flexible substrate, an upper electrode conductive layer, a flexible dielectric layer and a lower electrode film from top to bottom, wherein the upper electrode conductive layer is made of a spongy loose porous structure conductive material, and an A surface of the flexible dielectric layer is an integrated bionic butterfly scale laminated structure and a bionic moth eye structure array; the B surface of the flexible dielectric layer is a micropore structure array, the A surface of the flexible dielectric layer is arranged above and the B surface is arranged below in sensor assembly. The two bionic structures are textured through laser, the sensitivity and the linear range of the pressure sensor are effectively improved, the preparation method is simple, the template is controllable, the processing speed is high, the repeatability is good, the template can be repeatedly used, the sensor sensitivity is high, the linear range is wide, and the detection limit is low.
Owner:XIAMEN UNIV
Pneumatic fruit and vegetable picking soft hand
InactiveCN108297117ASimple structureEasy to operateGripping headsAgricultural engineeringFruits and vegetables
The invention discloses a pneumatic fruit and vegetable picking soft hand. The pneumatic fruit and vegetable picking soft hand comprises a base and a plurality of soft fingers; the base comprises an upper base and a lower base which are combined in an embedding manner; each soft finger comprises a soft finger air chamber and a limiting layer; each soft finger air chamber is fixed to the base and the bottom end of each soft finger air chamber is connected with an air pump; and each limiting layer is arranged at the inner side of the corresponding soft finger air chamber in an adhesion manner. The pneumatic fruit and vegetable picking soft hand disclosed by the invention is highly adaptable to a grabbed object, can prevent damages of fruits and vegetables and the surrounding environment, canbe adaptable to weakness, vulnerability and individual shape differences of picked objects, and is simple in structure, good in operability, high in reliability and low in cost.
Owner:SHANGHAI UNIV
Device and method for testing performance degradation caused by transistor lattice deformation
ActiveCN102967814ASimple and convenient application of mechanical stressRealize analysisIndividual semiconductor device testingTest performanceEngineering
The invention discloses a device and method for testing performance degradation caused by transistor lattice deformation. The device for testing the performance degradation caused by the transistor lattice deformation comprises a base, a precise displacement platform, a cushion block, a carrier and a pressing block. The method for testing the performance degradation caused by the transistor lattice deformation comprises the following steps of (1) thinning a chip; (2) cutting the chip; (3) sticking the chip; (4) leading an electrode out of a transistor; (5) fixing the carrier; (6) testing the transistor before applying the stress; (7) applying the mechanical stress onto the chip; (8) testing the transistor under the stress; (9) judging whether the performance of the transistor degrades; and (10) obtaining the lattice deformation value when the performance of the transistor degrades. The device and method for testing the performance degradation caused by the transistor lattice deformation has the advantages of easily applying compression stress onto the chip, and being large in range of the applicable mechanical stress, good in chip bend uniform, simple and accurate in lattice tension amount calculation, and is suitable for analyzing the influence of the transistor lattice deformation on the performance of the transistor.
Owner:云南凝慧电子科技有限公司
Pressure adaptive watertight connection box of underwater robot
InactiveCN102407926AWork reliablyPrevent penetrationUnderwater vesselsUnderwater equipmentExtensibilityTitanium
The invention discloses a pressure adaptive watertight connection box of an underwater robot. An oil inlet and an oil outlet are arranged at the bottom surface of a metal box; a flange is mounted at the top end opening of the metal box; a compensation film is placed on the flange; a sealing strip is arranged between the compensation film and the flange; a pressing plate is arranged on the compensation film; a protection cover is mounted on the pressing plate; a watertight connection box is filled with enough compensation oil; the compensation oil and the compensation film form a built-in metal film type pressure compensator; and the built-in metal film type pressure compensator works with a piston type pressure compensator at the same time. The pressure adaptive watertight connection box of the underwater robot does not need to be externally connected with a pressure compensator and an oil path, wherein the piston type pressure compensator makes the oil pressure in the watertight connection box be a little higher than the external water pressure, so that the seawater is effectively avoided being penetrated into the watertight connection box; the titanium film is good in extensibility, large in deformation range and difficult to damage; and the watertight connection box is compact and simple in structure and reliable in operation.
Owner:ZHEJIANG UNIV
Rock burst roadway energy absorption and release comprehensive anti-impact supporting method
ActiveCN111911201ARelieve pressureImprove support lifeUnderground chambersClimate change adaptationEnergy absorptionCable tray
The invention relates to a rock burst roadway energy absorption and release comprehensive anti-impact supporting method. Foundation anchor net supporting of a roadway top plate and side parts is rapidly completed; according to different roadway rock burst danger levels, anchor cable holes are drilled in the top plate and the two side parts according to different row spacings, and it is ensured that the anchor cable holes and anchor rod holes are not located in one same roadway section; square shallow holes are constructed in two bottom corners of a roadway, the row spacing of the square shallow holes in the bottom corners of the roadway is the same as that of the anchor cable holes, and the square shallow holes and the anchor cable holes are located on the same section; an energy absorbingand releasing anti-impact bracket is mounted and fixed by taking the square shallow holes in the bottom corners of the roadway as base points, an anchor cable is mounted in the anchor cable holes bypenetrating through round holes reserved in the anti-impact bracket, an anchor cable tray and a lock are mounted, anchor cable pre-tightening force is applied, the energy absorbing and releasing anti-impact bracket is fixed, and the energy absorbing and releasing anti-impact bracket is clung to roadway surrounding rock; and along with roadway tunneling, the steps are circularly completed, and supporting of the rock burst roadway is completed.
Owner:SHANDONG UNIV OF SCI & TECH
Method of manufacturing and structure of prestressed composite reinforcements
In this invention a method of manufacturing and structure of prestressed composite reinforcements for cylindrical liners is presented. The method relies on creating deep precompression in the liner compensated by according pretension in the reinforcement. This method allows efficient use of mechanical properties of material of the liner and reinforcement and can provide a substantial mass reduction of the overall component.
Owner:PULNIKOV ANDREY
Variable-rail insulation door
ActiveCN106988651ALow costImprove sealingFireproof doorsPower-operated mechanismElectrical controlEngineering
The invention discloses a variable-rail insulation door and belongs to the technical field of industrial special doors. An upper guide wheel is arranged at the top of each door body, and a walking mechanism is arranged at the bottom of the upper guide wheel. The upper guide wheel is arranged in an upper track, and a turnable walking wheel is arranged in a lower track. The upper track comprises an upper straight track, and a plurality of upper oblique tracks are arranged at two ends of the upper straight track. Upper track variable-rail devices are arranged on the sides of the upper oblique tracks. The lower track comprises a lower straight track, and a plurality of lower oblique tracks are arranged at two ends of the lower straight track. Lower track variable-rail devices re arranged at the crossed positions of the lower straight track and the lower oblique tracks. A grabbing hook is arranged on the side adjacent to the door bodies, and a transverse hook connecting rod is arranged on the other side, and the grabbing hook extends out and then is matched with the transverse hook connecting rod. An adsorbing steel plate is arranged on the outer side wall of the outmost-side door body, extends out and then is matched with an electrical control permanent magnetic chuck built on a wall. Upper, left, right and lower inflating rubber tubes of the door bodies are communicated to form an integrated inflating rubber tube communicated with an air supply system.
Owner:SHENYANG BAOTONG DOOR
Method of manufacturing and structure of prestressed composite reinforcements
Owner:PULNIKOV ANDREY
Reaction bucket cleaning device
InactiveCN109894442AClean thoroughlyImprove clamping stabilityHollow article cleaningEngineeringMechanical engineering
The invention relates to a reaction bucket cleaning device. The reaction bucket cleaning device comprises a connecting mechanism and a cleaning mechanism arranged on the connecting mechanism, the connecting mechanism comprises a connecting disc, a positioning mechanism is arranged on the periphery of the connecting disc, a clamping mechanism is arranged on the inner ring of the connecting disc, the clamping mechanism comprises a swing rod, the middle of the swing rod is rotatably connected with the connecting disc, a swing plate perpendicular to the axis of the swing rod is arranged on the swing rod, one side of the swing plate is connected with the connecting disc through an elastic connecting plate, the connecting disc is provided with an extrusion screw used for being in contact with the other end of the swing plate, and a contact block is in elastic connection to the end of the swing rod, the positioning mechanism comprises a positioning rod, the end of the positioning rod is provided with a positioning conical block, the cleaning mechanism comprises a rotary driving mechanism arranged in the middle of the connecting disc, the rotary driving mechanism comprises a rotary outputshaft, multiple sets of cleaning brushes are arranged on the rotary output shaft, and each cleaning brush comprises a cleaning plate connected through two parallel hinge rods.
Owner:NANJING ROBOTICS RES INST CO LTD
Self-resetting rocking wall with buckling-constrained shape memory alloy bars and building
ActiveCN108930346AImprove bearing capacityGuaranteed pressure capacityWallsProtective buildings/sheltersShape-memory alloyEngineering
The invention discloses a self-resetting rocking wall based on buckling-constrained shape memory alloy bars. A rocking wall body and a foundation beam are connected by wall connecting systems, and thewall connecting systems ensure that the wall body and the foundation beam are directly hinged and leave sufficient rotating space for the rocking wall body. The alloy bars are arranged between the rocking wall body and the foundation beam, the bottoms of the alloy bars are connected to the foundation beam through anchoring devices, and the tops of the alloy bars are connected to the rocking wallbody through pre-embedded sleeves. Constraining sleeves are mounted on the circumferential sides of the shape memory alloy bars and wrap the shape memory alloy bars. Main body frames or walls are disposed on both sides of the rocking wall body, and the main body frames or the walls are connected with the rocking wall body through a plurality of sets of inter-wall dampers. The inter-wall dampers can improve the energy dissipation capability of the rocking wall. When the inter-wall dampers do not have the self-resetting performance, the shape memory alloy bars apply pre-tightening force in an over-thread-screwing mode to overcome the return resistance of the dampers.
Owner:SHANDONG UNIV
Multi-robot mobile shelf task allocation method for intelligent warehouse
ActiveCN112785132ALarge deformation rangeBest allocation planProgramme-controlled manipulatorMachine learningDistributed computingReal-time computing
The invention discloses a multi-robot mobile shelf task allocation method for an intelligent warehouse, which can ensure that the total operation distance of a robot for executing all tasks is minimum and improve the transportation efficiency of the robot. The method comprises the steps: randomly arranging the tasks to be distributed to form a task sequence; assigning tasks in the task sequence to each robot one by one in an auction mode, and performing reordering according to distances to obtain a robot task sequence; calculating the execution cost of the task sequence of each robot, and adding the execution cost to obtain the total execution cost of the task sequence; acquiring a neighborhood set of the task sequence by adopting an exchange neighborhood operator, calculating the total execution cost of each sequence in the neighborhood set, and screening out a sequence of which the cost is lower than that of the task sequence from the neighborhood set as an initial solution set; for each sequence in the initial solution set, optimizing an optimal solution task sequence by expanding K kinds of neighborhood sets; and outputting the sequence with the minimum total execution cost in the optimal solution set and the corresponding robot task sequence.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Hydraulic power antiresonance isolation device
InactiveCN106594162AReduce stiffnessLarge deformation rangeSpringsShock absorbersAntiresonanceEngineering
The invention discloses a hydraulic power antiresonance isolation device. The hydraulic power antiresonance isolation device comprises a hydraulic cylinder, a welding corrugated pipe, a main mass, a base, spiral springs and a suspension mass; the welding corrugated pipe, the main mass, the base, the suspension mass and the hydraulic cylinder are coaxially arranged; the suspension mass is sealed at one end of the welding corrugated pipe; the other end of the welding corrugated pipe is communicated with the hydraulic cylinder; the main mass is connected with the hydraulic cylinder for driving hydraulic oil in the hydraulic cylinder to perform a linear reciprocating motion; the base is used for supporting the hydraulic cylinder; the spiral springs are connected between the main mass and the base; multiple spiral springs are provided, and are uniformly arranged in the peripheral direction of the main mass; and the hydraulic cylinder is a single-piston rod single-acting hydraulic cylinder. Compared with the prior art, the hydraulic power antiresonance isolation device is easy to realize high lever ratio, simple in structure, easy to determine a main spring rigidity value, excellent in spring rigidity linearity, adjustable in parameters and convenient to disassemble.
Owner:SHANGHAI JIAO TONG UNIV
Adjustable carbon fiber wheel rim combined structure
The invention belongs to the field of vehicle wheel accessories and particularly discloses an adjustable carbon fiber wheel rim combined structure which comprises a wheel frame, spokes and a hub. The adjustable carbon fiber wheel rim combined structure is characterized in that the wheel frame and the spokes are both made of a carbon fiber composite material, the two ends of the spokes are respectively connected with the two sides of the wheel frame and the hub, and the spokes are arranged symmetrically on two sides of the hub and distributed on the wheel frame evenly. The adjustable carbon fiber wheel rim combined structure is simple in structure, is convenient to use and is applicable to composite material vehicle wheels with or without an inner tube. By the adjustable carbon fiber wheel rim combined structure, the circular degree of the wheel frame can be changed through simple adjustment so that circular degree of a whole vehicle wheel can be ensured and the quality reliability of the carbon fiber composite material vehicle wheel can be improved.
Owner:TAISHAN SPORTS IND GRP +1
Stool-couch linkage device, frame body and seat
PendingCN112244552AImprove comfortStretch smoothlyStoolsReclining chairsEngineeringMechanical engineering
Owner:DEWERTOKIN TECHNOLOGY GROUP CO LTD
Connector assembly
ActiveCN109599689AEnsure connection stabilityFit firmlySecuring/insulating coupling contact membersPrinted circuit aspectsEngineeringElectrical and Electronics engineering
The invention relates to the technical field of connectors, and specifically provides a connector assembly. The connector assembly comprises a connector and an adapter connector which are in insertedconnection adaptively, the shell of the adapter connector is provided with a first inserted connection end, the shell of the connector is of a second inserted connection end corresponding to the firstinserted connection end, one of the first inserted connection end and the second inserted connection end is a female end socket, two or more than two split grooves are formed in the side wall of thefemale end socket along the peripheral direction, and a deformable female end shell deformation part is formed between every two adjacent split groove; and / or the other of the first inserted connection end and the second inserted connection end is a corresponding male end socket, two or more than two split grooves are formed in the side wall of the male end socket along the peripheral direction, and a deformable male end shell deformation part is formed between every two adjacent split grooves. The male end shell deformation part and the female end shell deformation part swing towards the inner side or the outer side along with the displacement of the male end socket and / or the female end socket, the stability coordination can be guaranteed, the effect of vibration is weakened, and the connection stability of contact pieces inside the connector assembly is guaranteed.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
Achieving method for morphing aircraft wing frame based on folded paper structure
InactiveCN104369856ALarge deformation rangeWith a single degree of freedomWingsAircraft assemblyAirplaneMorphing
Owner:SHANGHAI JIAO TONG UNIV
Automatic precision servo powder forming machine
ActiveCN110788320AImprove storage qualityEasy to disassemble and cleanDischarging arrangementFeeding arrangmentsProcess engineeringStructural engineering
The invention relates to the field of powder forming machines, in particular to an automatic precision servo powder forming machine. The machine comprises a powder forming machine body, a powder clearing structure, a material pushing structure, a storage structure, an anti-blocking structure and a pressure releasing structure, wherein powder materials on a forming die and a finished product are cleared through the powder clearing structure, so that dust clearing of the powder materials is more convenient, and the production processing environment is greatly improved; the top end of the powderforming machine body is provided with the storage structure which is rotationally connected, so that the powder materials are convenient to store, the materials are more convenient to discharge out ofthe storage structure, meanwhile, the powder materials are more convenient to add, and material adding does not influence normal production; meanwhile, dust raising is avoided, and the storage effectof the materials is better; and one end of the anti-blocking structure is connected with the material pushing structure, and the other end of the anti-blocking structure is connected with the storagestructure, so that when the material pushing structure works, shaking of the materials in the storage structure is convenient to drive, hardening of the materials is avoided, and the materials can bebetter discharged.
Owner:广州力鸿自动化设备有限公司
Self-resetting column base joints and steel structure buildings based on shape memory alloy rods
ActiveCN109057018BImprove bearing capacityDoes not lose initial stiffnessProtective buildings/sheltersShock proofingArchitectural engineeringShape-memory alloy
The invention discloses a self-resetting column foot node based on a shape memory alloy bar and a steel structure building. The self-resetting column foot node solves the problems in the prior art ofhigh rigidity after the nominal yield of the node and easy loss of initial rigidity after an earthquake occurs, and has the advantages of good energy consumption performance and self-resetting capability under the action of earthquake load, after suffering from an excessive deformation or at low temperature, the initial rigidity is not lost, and the structural steel column and the column foot nodeare not damaged; according to the technical scheme, the self-resetting column foot node and the steel structure building comprises a concrete foundation, a bottom plate is fixed on the upper part ofthe concrete foundation, the bottom plate is connected with a vertical supporting column through an anti-shear connecting plate, the two sides of the support column are symmetrically provided with ananchor plate, the anchor plate and the bottom plate are connected with a shape memory alloy rod through a hinged support, the shape memory alloy rod provides an energy consumption performance and a self-resetting performance for the nodes while providing rotational rigidity; the circumference of the shape memory alloy rod is coated with a sleeve, and the sleeve can restrain the buckling of the shape memory alloy rod under compression so as to improve the ductility and bearing capacity of the shape memory alloy rod when the shape memory alloy rod is pressed.
Owner:SHANDONG UNIV
Large-scale fiber grating rust sensor
ActiveCN108680110AOvercoming distractionsOvercome stabilityUsing optical meansGratingElectromagnetic interference
The invention relates to the field of rust sensors and particularly relates to a large-range fiber grating rust sensor which comprises an upper cavity, a lower cavity, an L-shaped connecting member and a grating. The upper cavity is arranged in a cavity of the lower cavity, the upper end of a bottom plate of the lower cavity is provided with a lower cavity groove with an upward opening, the bottomof the upper cavity is provided with an upper cavity groove with a downward opening, and the upper cavity groove opening and the lower cavity groove opening are fitted to form a detection cavity which is internally provided with a threaded steel. An upper end of the L-shaped connecting member is horizontally provided with an optical fiber, the grating is arranged on the optical fiber, and two sides of the cavity of the lower cavity at two ends of the optical fiber are connected. The threaded steel in the detection cavity rusts, the volume is increased, the upper cavity is pushed to move upward, thus the fiber grating which is in contact with the L-shaped connecting member generates a corresponding wavelength shift, the fiber grating is used as a sensing element, and the disadvantage thata traditional electrical sensor is susceptible to electromagnetic interference and has poor short-term stability is overcome.
Owner:江西云沛科技发展有限公司
Waterproof and dustproof key
InactiveCN107968008ALarge deformation rangeEasy to cleanElectric switchesMechanical engineeringMembrane layer
The invention relates to a waterproof and dustproof key, which comprises a PCB, a contact and a film, wherein a response region is positioned on the surface of the PCB, the film is provided with a flexible membrane layer, one end of the contact is adhered to the surface of the response region, the flexible membrane layer covers the other end of the contact, and the film is connected with the PCB in a sealed manner. By adopting the sealed connecting mode of the PCB, an adhesive layer and the film, a sealed region is formed inside the key, and the film is made of a waterproof easy-to-clean material, so that the key can be easily cleaned while resisting water and dust. In addition, an elastic sheet is arranged inside the key, so as to bring better hand feeling to the user, and obtain better sensory feedback on key pressing.
Owner:徐欣欣
Camber-variable wing trailing edge and wing
ActiveCN111907694AImprove flexibilitySimple structureWithout power ampliicationWing adjustmentsTrailing edgeMechanical engineering
The invention provides a camber-variable wing trailing edge and a wing capable of realizing continuous bending of the wing trailing edge. The camber-variable wing trailing edge at least comprises a front sub-wing rib, a rear sub-wing rib and a flexible hinge for connecting the front sub-wing rib and the rear sub-wing rib, and the flexible hinge comprises a first cross reed and a second cross reed;and the first cross reed and the second cross reed are arranged in a spatial cross line manner in the front-rear direction of the wing trailing edge. The wing trailing edge is of a sectional structure, and the adjacent sub-wing ribs are connected through the flexible hinges, and the wing trailing edge has the advantages of being high in flexibility, simple in structure and light in weight.
Owner:HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
A Flexible Pneumatic Manipulator with Multifunctional Grabbing
ActiveCN107214729BLarge deformation rangeAccurate captureGripping headsRobot handClassical mechanics
Owner:CENT SOUTH UNIV
Device and method for testing performance degradation caused by transistor lattice deformation
ActiveCN102967814BSimple and convenient application of mechanical stressRealize analysisIndividual semiconductor device testingTest performanceEngineering
The invention discloses a device and method for testing performance degradation caused by transistor lattice deformation. The device for testing the performance degradation caused by the transistor lattice deformation comprises a base, a precise displacement platform, a cushion block, a carrier and a pressing block. The method for testing the performance degradation caused by the transistor lattice deformation comprises the following steps of (1) thinning a chip; (2) cutting the chip; (3) sticking the chip; (4) leading an electrode out of a transistor; (5) fixing the carrier; (6) testing the transistor before applying the stress; (7) applying the mechanical stress onto the chip; (8) testing the transistor under the stress; (9) judging whether the performance of the transistor degrades; and (10) obtaining the lattice deformation value when the performance of the transistor degrades. The device and method for testing the performance degradation caused by the transistor lattice deformation has the advantages of easily applying compression stress onto the chip, and being large in range of the applicable mechanical stress, good in chip bend uniform, simple and accurate in lattice tension amount calculation, and is suitable for analyzing the influence of the transistor lattice deformation on the performance of the transistor.
Owner:云南凝慧电子科技有限公司
GIS busbar and its busbar expansion joint
ActiveCN109755908BLow costImprove deformation abilityTotally enclosed bus-bar installationsElastic componentBusbar
The invention relates to the technical field of power transmission and transformation engineering, and in particular to a GIS busbar and its busbar expansion joint. The bus expansion joint in the GIS bus includes a front flange and a rear flange arranged along the bus axis. A bellows is connected between the front flange and the rear flange. The bus expansion joint also includes a front flange and a rear flange connected between the front flange and the rear flange. The elastic component includes a sleeve fixedly connected to the front flange and a dowel rod fixedly connected to the rear flange. The dowel rod extends into the sleeve, and the dowel rod portion extends into the sleeve and A coil spring is provided between the rear ends of the sleeve; when the bus expansion joint and the bus barrel are butted and the bellows is not deformed by force, the sum of the spacing between adjacent circles of the coil spring is not greater than the maximum allowable stretch of the bellows. quantity. The busbar expansion joint can be used to solve the problem in the prior art that the expansion joint has a small expansion range of deformation, and can also solve the problem of structural damage to the busbar barrel or the expansion joint itself due to the small deformation range of the expansion joint.
Owner:HENAN PINGGAO ELECTRIC +2
Novel variable-diameter gate rubber core
ActiveCN113323617AAchieve sealingReduce maintenance costsSealing/packingEngineeringComposite material
The invention provides a novel variable-diameter gate rubber core. The novel variable-diameter gate rubber core comprises a rubber core body, mounting blocks, a limiting mechanism and a rubber overflow mechanism, wherein an arc-shaped mounting groove is formed in the inner wall of the rubber core body, sealing layer rubber is arranged in the mounting groove, and when the sealing layer rubber is arranged in the mounting groove, filling gaps are reserved between the outer walls of the two ends of the sealing layer rubber and the rubber core body; the mounting blocks are symmetrically arranged on the outer walls of the two ends of the rubber core body, driving grooves are formed in the inner walls of the mounting blocks, detachable driving rubber is arranged in the driving grooves, and one end of the driving rubber is matched with the filling gaps; the limiting mechanism is embedded in the rubber core body, and the limiting mechanism surrounds the end surface, the top surface and the bottom surface of the driving rubber; and the rubber overflow mechanism is arranged in the mounting blocks. According to the novel variable-diameter gate rubber core, the driving rubber and the sealing layer rubber can be independently replaced according to the damage condition, the whole gate rubber core does not need to be replaced, so that the maintenance cost is reduced; and the driving rubber can extrude the two ends of the sealing layer rubber, so that the sealing effect of the two sealing layer rubber is improved, and sealing of drill rods with different diameters is realized.
Owner:四川新为橡塑有限公司
A self-resetting rocking wall and building with buckling-constrained shape memory alloy rods
ActiveCN108930346BImprove bearing capacityGuaranteed pressure capacityWallsProtective buildings/sheltersShape-memory alloyAlloy
The invention discloses a self-resetting rocking wall based on buckling-constrained shape memory alloy bars. A rocking wall body and a foundation beam are connected by wall connecting systems, and thewall connecting systems ensure that the wall body and the foundation beam are directly hinged and leave sufficient rotating space for the rocking wall body. The alloy bars are arranged between the rocking wall body and the foundation beam, the bottoms of the alloy bars are connected to the foundation beam through anchoring devices, and the tops of the alloy bars are connected to the rocking wallbody through pre-embedded sleeves. Constraining sleeves are mounted on the circumferential sides of the shape memory alloy bars and wrap the shape memory alloy bars. Main body frames or walls are disposed on both sides of the rocking wall body, and the main body frames or the walls are connected with the rocking wall body through a plurality of sets of inter-wall dampers. The inter-wall dampers can improve the energy dissipation capability of the rocking wall. When the inter-wall dampers do not have the self-resetting performance, the shape memory alloy bars apply pre-tightening force in an over-thread-screwing mode to overcome the return resistance of the dampers.
Owner:SHANDONG UNIV
A new type of variable diameter ram rubber core
ActiveCN113323617BAchieve sealingReduce maintenance costsSealing/packingEngineeringMaterials science
A new variable-diameter gate rubber core, including a rubber core. The inner wall of the rubber core is provided with an arc-shaped installation groove, and a sealing layer glue is arranged in the installation groove. When the sealing layer glue is installed in the installation groove, the two ends of the sealing layer glue There is a filling gap between the outer wall and the rubber core; the mounting block is symmetrically arranged on the outer wall at both ends of the rubber core, and the inner wall of the mounting block is provided with a driving groove, and a detachable driving rubber is provided in the driving groove, and one end of the driving rubber is matched with the filling gap; The limit mechanism is embedded in the rubber core, and the limit mechanism surrounds the end surface, top surface and bottom surface of the driving rubber; the overflow mechanism is arranged in the installation block. The driving glue and the sealing layer glue of the present invention can be replaced separately according to the damage situation, without the need to replace the entire gate rubber core, which reduces maintenance costs, and the driving glue can squeeze both ends of the sealing layer glue to improve the sealing effect of the two sealing layer glues , to achieve the sealing of different diameter drill pipes.
Owner:四川新为橡塑有限公司
Parameter-adjustable liquid-elastic vibration isolation device
The invention provides a fluid elastomer type isolation mounting with adjustable parameters. The isolation mounting comprises a cylinder barrel, a welded bellows, a principal mass, a rubber ring and asuspended mass. The welded bellows, the principal mass, the rubber ring, the suspended mass and the cylinder barrel are coaxially arranged; one end of the welded bellows is hermetically provided withthe suspended mass, and the other end of the welded bellows is fixed to the bottom of the cylinder barrel; and the principal mass is connected to the cylinder barrel through the rubber ring, and usedfor driving hydraulic oil in the cylinder barrel to reciprocate linearly. According to the isolation mounting provided by the invention, through improving the traditional dynamic anti-resonance structure, the disadvantages of complex structure and uneasy adjustment of the traditional dynamic anti-resonance structure are overcome.
Owner:SHANGHAI JIAOTONG UNIV
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