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32results about How to "Increase the maximum carrying capacity" patented technology

Concrete structure reinforcing method, self-anchored prestress assembly, assembled tensioning assembly

The invention relates to a concrete structure reinforcing method, a self-anchored prestress assembly and an assembled tensioning assembly. The concrete structure reinforcing method comprises the following steps including: an anchor seat installation step: an anchor seat is fixed on a concrete structure, wherein the anchor seat is pasted by adopting a pouring method, and fastening elements are chemically buried; a prestress cable manufacturing and installation step: a prestress cable is manufactured and is arranged in the assembled tensioning assembly; a prestress tensioning step: the prestress tensioning step includes a single prestress cable pre-tensioning sub step and a whole prestress cable tensioning sub step, so that the single prestress cables can be sequentially tensioned, and all of the prestress cables can be subsequently tensioned integrally; and a mortar spraying reinforcing step: the mortar spraying is at least carried out on regions covered by the prestress cables of the concrete structure, so that the reinforcement on the concrete structure is realized. The invention aims at providing the method of obviously improving the bearing force of the concrete structure.
Owner:湖南省交通科学研究院有限公司 +1

Hybrid magnetic bearing of rotor inside vertical coil and assembled structure thereof

InactiveCN101975221AReduce coupling effectDoes not control feature effectsMagnetic bearingsMagnetic bearingMagnetic poles
The invention relates to a hybrid magnetic bearing of a rotor inside a vertical coil and an assembled structure thereof. The hybrid magnetic bearing comprises a rotor and a stator, wherein the rotor comprises an inner magnetic conductive ring and a rotor core, wherein the rotor core is coaxially sleeved at the outer side of the inner magnetic conductive ring; the stator comprises a stator disc, a plurality of coil iron cores and a plurality of electromagnetic coils, wherein the stator disc includes an upper magnetic conductive pole plate, a lower magnetic conductive pole plate, a magnetic pillar installation disc and a permanent magnet; the plurality of coil iron cores are respectively symmetrically arranged at the upper side and the lower side of the stator disc and uniformly distributed along the circumferential direction of the stator disc, and every two coil cores which are symmetrically arranged at the top and the bottom respectively correspond to the position of one magnetic pole; the plurality of electromagnetic coils are respectively vertically sleeved on the coil iron cores; the rotor is arranged in the stator; and the magnetic conductive pole plates are respectively uniformly divided into four-magnetic pole structures in radial shapes along the circumferential direction, and the magnetic poles are connected into an integral ring on an inner edge. The magnetic poles of the hybrid magnetic bearing are connected into the integral ring so as to form radial uniform magnetic poles, therefore the eddy current loss of the rotor during operation is greatly reduced.
Owner:NAT UNIV OF DEFENSE TECH

Mixed magnetic bearing with horizontal-coil uniform radial pole and low-loss outer rotor

The invention discloses a mixed magnetic bearing with a horizontal-coil uniform radial pole and a low-loss outer rotor, comprising a rotor magnetic conducting ring (1) and a stator (2), wherein the rotor magnetic conducting ring (1) consists of a rotor iron core (11) sleeved with the inner cavity of an external magnetic conducting ring (12); the stator (2) consists of a stator disc (23), an upper magnetic conducting cover board (21), a lower magnetic conducting cover board (24), eight solenoid coils (22) and a stator mounting shaft (25), wherein the solenoid coils (22) are arranged horizontally and are respectively arranged at the upper side and the lower side of the stator disc (23) by taking the upper magnetic conducting cover board (21) and the lower magnetic conducting cover board (24) as coil iron cores. In the invention, the solenoid coils are arranged horizontally, take the magnetic cover boards as the coil iron cores and are separated from magnetic poles in structure, therefore, the processing and the assembly are more convenient and the magnetic poles can fully utilize circumference area to increase the bearing capability. In addition, the horizontal-coil uniform radial pole structure is more compact, thereby effectively reducing the axial height of the bearing and reducing the weight of the magnetic bearing.
Owner:NAT UNIV OF DEFENSE TECH

Construction method for transmission line project material transport by prefabricated cableway

The invention relates to a construction method for transmission line project material transport by a prefabricated cableway. The construction method includes the steps of S01, supporting pillar mounting, S02, pulling cable erection and driving device mounting, S03, driving device mounting, S04, carrying cable erection, S05, traveling trolley selection, and S06, cableway operation test. The construction method has the advantages of applicability to material transport in mountainous areas and hilly grounds, high applicability, simplicity in application, convenience in maintenance, high working efficiency, little environmental destruction and the like.
Owner:STATE GRID CORP OF CHINA +2

Steel reinforced concrete frame-off-centering steel shotcrete combined structure system

InactiveCN101509276AIncreased elastic lateral stiffnessBig-amplitudeShock proofingReinforced concreteSelf weight
The invention discloses a reinforced concrete frame-eccentric steel support composite structural system and relates to a reinforced concrete structure, providing the reinforced concrete frame-eccentric steel support composite structural system which has a simple and rational structure, develops the respective advantages in strength, stability and anti-shock performance of the reinforced concrete structure and the steel structure, reduces the self weight of the structure and enhances the flexibility of the building layout and a design method thereof. The system comprises a frame structure and an eccentric steel support, and the eccentric steel support is arranged inside the frame structure and is connected with the frame structure in an eccentrically arranged manner. Designing of the eccentric steel brace comprises the following steps: determining the beam-column section size according to the beam span and the limit value of axial compression ratio of the column; determining the default value of each lateral rigidity according to the requirement of the lateral deformation limit value; selecting the type and layout of eccentric steel support, determining the eccentric steel support size and the eccentricity according to the requirement of the rigidity, and working out the section area of each eccentric steel support; and checking the overall strength and deformation, and determining the section size and the reinforcing bars of the beam-column.
Owner:XIAMEN UNIV

Automatic laser welding device for fixing legs of motor shell

The invention provides an automatic laser welding device for fixing legs of a motor shell. The automatic laser welding device comprises a rack, a base plate, positioning mould components and a cam indexer component, a hydraulic cylinder heavy pressing component, a combination welding component, a workpiece ejection component, an automatic discharging component and a blanking slideway which are arranged on the base plate; each positioning mould component comprises a positioning mould and buffering connectors which are uniformly arranged around the positioning mould; the six positioning mould components are uniformly arranged on the worktable; and the hydraulic cylinder heavy pressing component, the combination welding component, the workpiece ejection component, the automatic discharging component and the blanking slideway are sequentially arranged on the periphery of the worktable. According to the automatic laser welding device, a welding structure is optimally designed according to the stressed states of the fixing legs; laser is utilized for seam welding along the edge outline of the fit area of the arc surface of each fixing leg and the outer wall of the cylindrical shell; bearing capacity of the fixing legs is greatly improved; welding quality is high; the automation degree is high; technological repeatability is good; and welding efficiency is higher.
Owner:瑞安市聚邦汽车零部件有限公司

Method for whole forming of aluminum honeycomb sandwich structure of carbon panel

The invention relates to a method for whole forming of an aluminum honeycomb sandwich structure of a carbon panel. The method comprises the following steps of designing and manufacturing a male die of a main body, manufacturing a split steel die of an outer panel, preparing a prepreg, manufacturing an inner panel and the outer panel, assembling, curing, removing the dies, and the like. The method has the advantages that by adopting the reasonable design of the dies, and the process control of carbon epoxy panel, aluminum honeycomb core and metal end frame assembly process, the aluminum honeycomb sandwich structure product of the carbon panel of a large rotary body with attractive appearance and high internal quality can be manufactured, and the design index requirements of the product are met; at the premises of not increasing the manufacturing cost, the structure size of the product is increased, and the bearing capacity of an effective load bracket is increased.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1

Resistance unit welding method of Ni element regulated and controlled magnetic field assisted aluminum alloy and steel

The invention discloses a resistance unit welding method of an Ni element regulated and controlled magnetic field assisted aluminum alloy and steel, and belongs to the technical field of welding. Theinventions aims to solve the technical problem that the welding performance is improved on the premise of keeping an AlSi coating on the surface of the steel. According to the method, a small hole isprefabricated in the surface of the aluminum alloy, a rivet is placed in the small hole, and nuggets are formed on the interfaces of the rivet and the steel during welding, so that the connection between the aluminum alloy and the steel is realized. An Ni foil is placed at the interface of the rivet and the hot stamping forming steel, an alloy element Ni is introduced into a molten pool through melting of the foil to improve the austenite stability, and generation of a full martensite structure in the molten pool is promoted; and meanwhile, permanent magnets are adopted to generate a constantradial strong magnetic field at the welding position, flowing of the Ni element and an Al element in the molten pool is promoted through the electromagnetic stirring effect, the structure uniformity is improved, large-scale generation and segregation of ferrite in the molten pool are restrained, the solidification behavior of liquid metal is improved, the size of the molten pool is increased, grains are refined, and air hole defects are eliminated.
Owner:HARBIN INST OF TECH AT WEIHAI

Novel prefabricated concrete member hoisting point embedded part system

The invention discloses a novel prefabricated concrete member hoisting point embedded part system, and relates to the technical field of assembly type structures. The system comprises an embedded part, anti-pulling steel bars, anti-splitting steel bars, horizontal U-shaped steel bars, distribution steel bars and the like. The embedded part is made of high-strength steel, grooves are formed in theedge of the embedded part, end plates are arranged at the tail of the embedded part, and the bonding performance between the embedded part and a prefabricated member is improved. The anti-pulling steel bars penetrate through holes in the embedded part and are arranged in the longitudinal direction of the embedded part, and the anti-pulling bearing capacity of the embedded part is improved. The anti-splitting steel bars penetrate through the holes in the embedded part and are perpendicular to the embedded part, and the shear capacity of the embedded part is improved. The horizontal U-shaped steel bars are arranged around the embedded part and perpendicular to the embedded part, and the performance of the embedded part under the oblique tension is improved. The distribution steel bars are arranged around the anti-splitting steel bars and perpendicular to the anti-splitting steel bars, and the integrity between the system and the prefabricated member is improved. The embedded part systemis excellent in stress performance, suitable for various hoisting modes of large prefabricated concrete members and good in engineering application prospect.
Owner:CHONGQING UNIV

Vertical honeycomb sandwich plate, preparation method and sandwich plate connecting method

The invention discloses a vertical honeycomb sandwich plate, a preparation method and a sandwich plate connecting method. The vertical honeycomb sandwich plate comprises an upper face plate, a lower face plate, an upper glue layer, a lower glue layer, a honeycomb layer arranged between the upper glue layer and the lower glue layer as well as a plurality of upright columns connected with the upperface plate and the lower face plate respectively, wherein honeycomb holes of the honeycomb layer are vertical to the face plates. During preparation, a honeycomb core is arranged in a sleeving mannerafter one ends of the plurality of upright columns are fixedly connected with the lower face plate, the upper face plate is connected and fixed with the other ends of the upright columns, the upper glue layer and the lower glue layer are poured respectively, and the honeycomb sandwich plate is prepared. According to the sandwich plate connecting method, sandwich plates can be connected by arranging overlap edges or adopting solid square tubes. The honeycomb sandwich plate is low in density, light in weight and high in specific strength, specific stiffness, bearing capacity, vibration damping,sound insulation and heat insulation, and bonding strength between the core and the face plates is high; meanwhile, the method is simple, the operability is high, and the cost is low; besides, the connecting strength of the sandwich plates is high.
Owner:JIANGSU UNIV OF SCI & TECH

Methods of strengthening concrete structures, self-anchoring prestressed components, prefabricated tensioned components

The invention relates to a concrete structure reinforcing method, a self-anchored prestress assembly and an assembled tensioning assembly. The concrete structure reinforcing method comprises the following steps including: an anchor seat installation step: an anchor seat is fixed on a concrete structure, wherein the anchor seat is pasted by adopting a pouring method, and fastening elements are chemically buried; a prestress cable manufacturing and installation step: a prestress cable is manufactured and is arranged in the assembled tensioning assembly; a prestress tensioning step: the prestress tensioning step includes a single prestress cable pre-tensioning sub step and a whole prestress cable tensioning sub step, so that the single prestress cables can be sequentially tensioned, and all of the prestress cables can be subsequently tensioned integrally; and a mortar spraying reinforcing step: the mortar spraying is at least carried out on regions covered by the prestress cables of the concrete structure, so that the reinforcement on the concrete structure is realized. The invention aims at providing the method of obviously improving the bearing force of the concrete structure.
Owner:湖南省交通科学研究院有限公司 +1

Comfortable seat frame mechanism with adjustable height and inclination angle

The invention discloses a comfortable seat frame mechanism with adjustable height and inclination angle, which is characterized in that the lower end of a left front connecting rod I is hinged with a slide rail front bracket on the corresponding side, the upper end of the left front connecting rod I is hinged with the lower end of a left front connecting rod II, the upper end of the left front connecting rod II is fixedly connected with a front transverse pipe, and the lower end of a right front connecting rod is hinged with the slide rail front bracket on the corresponding side; a first gear driving device is arranged at the upper end of the seat frame and fixedly connected with the front transverse pipe, and the first gear driving device can drive the front transverse pipe to rotate on the vertical plane so as to adjust the inclination angle of the seat frame; the lower end of the right side rear connecting rod is hinged to the sliding rail rear support on the corresponding side, the upper end of the right side rear connecting rod is fixedly connected with the rear transverse pipe, a second gear driving device is arranged between the sliding rail rear support on the left side and the side plate, the second gear driving device is fixedly connected with the rear transverse pipe, and the second gear driving device can drive the rear transverse pipe to rotate on the vertical face. Therefore, the height of the seat frame is adjusted. The inclination angle and the height can be adjusted at the same time, the requirements of different passengers can be effectively met, and the comfort level of the passengers is guaranteed.
Owner:CHONGQING ZONGSHEN HONGLI CUSHION MFG

An operating arm and its intelligent unmanned submarine

The invention discloses an operation arm. The operation arm mounted on a frame comprises a first oil cylinder; a first oil cylinder telescopic shaft of the first oil cylinder is assembled and fixed together with a second oil cylinder housing; a second oil cylinder telescopic shaft is hinged with a connecting rod; one end of the connecting rod is hinged with one end of a third oil cylinder telescopic shaft; the other end of the third oil cylinder telescopic shaft is mounted in a third oil cylinder; a third oil cylinder housing is assembled and fixed together with one end of a third shaft body;the other end of the third shaft body is mounted in a guide groove; the guide groove is formed in the external wall of a second oil cylinder; the third shaft body is assembled and fixed together withone end of a tension spring; the other end of the tension spring is assembled and fixed together with a connecting block; the other end of the connecting rod is assembled and fixed together with an end part fixing plate; the end part fixing part is assembled and fixed together with a fourth oil cylinder; a driving connecting plate is arranged on a fourth oil cylinder telescopic shaft of the fourthoil cylinder; a driving connecting plate is hinged with one end of a driving rod through a ninth shaft body; and the other end of the driving rod is hinged with a gripping plate of a mechanical gripper. The invention further discloses an intelligent unmanned submarine using the operation arm.
Owner:赵勇

Packaging lining plate

The invention relates to a packaging lining plate. The packaging lining plate comprises a bearing plate and a limiting piece, a storage groove is formed in the bearing plate, at least part of a to-be-packaged object is placed in the storage groove, the limiting part comprises an attaching part and a holding part, at least part of the attaching part is attached to the bearing plate, the holding part can be dissociated out of the bearing plate, the bearing plate is provided with a groove structure matched with the attaching part, the assembling and disassembling functions of the bearing plate and the attaching part are achieved through horizontal sliding, a sliding direction of the limiting part is not parallel to an initial taking-out direction of the to-be-packaged object relative to the bearing plate, and an included angle between the sliding direction and the initial taking-out direction is defined as theta, wherein theta meets the following mathematical formula that theta is greater than 0 degree and less than or equal to 90 degrees, and the to-be-packaged object can be limited in a space defined by the storage groove and the limiting part. The packaging lining plate is wide in application range, free of damage during dismounting, high in safety and capable of achieving effective fixing, and meanwhile personalized customization for different shape requirements can be achieved conveniently.
Owner:NINGBO DIOCHANGE MEDICAL TECH CO LTD

Symmetrical type variable-pivot rigidity regulating module capable of realizing full-range rigidity regulation

ActiveCN112157656AEliminate geometric constraintsAchieving Stiffness AdjustmentProgramme-controlled manipulatorJointsControl engineeringControl theory
The invention discloses a symmetrical type variable-pivot rigidity regulating module capable of realizing full-range rigidity regulation, relates to the technical field of robots, and aims to solve the problems that an existing VSJ rigidity regulation range is limited, and a rigidity regulating mechanism cannot realize modularization. The symmetrical type variable-pivot rigidity regulating modulecomprises a pivot regulating mechanism, an elastic transmitting mechanism and a pair of first bearings, wherein the pivot regulating mechanism is rotatably connected to the elastic transmitting mechanism through one pair of first bearings. The symmetrical type variable-pivot rigidity regulating module is used for a flexible robot.
Owner:HARBIN INST OF TECH

An automatic laser welding device for fixing feet of a motor housing

The invention provides an automatic laser welding device for fixing legs of a motor shell. The automatic laser welding device comprises a rack, a base plate, positioning mould components and a cam indexer component, a hydraulic cylinder heavy pressing component, a combination welding component, a workpiece ejection component, an automatic discharging component and a blanking slideway which are arranged on the base plate; each positioning mould component comprises a positioning mould and buffering connectors which are uniformly arranged around the positioning mould; the six positioning mould components are uniformly arranged on the worktable; and the hydraulic cylinder heavy pressing component, the combination welding component, the workpiece ejection component, the automatic discharging component and the blanking slideway are sequentially arranged on the periphery of the worktable. According to the automatic laser welding device, a welding structure is optimally designed according to the stressed states of the fixing legs; laser is utilized for seam welding along the edge outline of the fit area of the arc surface of each fixing leg and the outer wall of the cylindrical shell; bearing capacity of the fixing legs is greatly improved; welding quality is high; the automation degree is high; technological repeatability is good; and welding efficiency is higher.
Owner:瑞安市聚邦汽车零部件有限公司

Inner rotor hybrid magnetic bearing of horizontal coil and composite structure thereof

InactiveCN101968076ASmall electromagnetic control magnetic circuit coupling effectDoes not control feature effectsMagnetic bearingsMagnetic bearingMagnetic poles
The invention relates to an inner rotor hybrid magnetic bearing of horizontal coil and a composite structure thereof. The hybrid magnetic bearing comprises a rotor and a stator, wherein the rotor contains an inner magnetically conductive ring and a rotor core which is sleeved on the outside of the inner magnetically conductive ring coaxially; the stator contains a stator disk, an upper magnetically conductive cover plate, a lower magnetically conductive cover plate and a plurality of electromagnetic coils; the stator disk contains an upper magnetically conductive pole plate, a lower magnetically conductive pole plate, a magnetic cylinder mounting disk and a permanent magnet; the upper magnetically conductive cover plate and the lower magnetically conductive cover plate are arranged on and under the stator disk respectively and symmetrically; the electromagnetic coils are sleeved on the upper magnetically conductive cover plate and the lower magnetically conductive cover plate respectively, and each two electromagnetic coils which are arranged up and down symmetrically are opposite to one magnetic pole. The rotor is arranged in the stator; and the magnetically conductive cover plates are separately divided into four magnetic pole structures along the circumferential direction which are arranged radially, and the inner edges of the magnetic poles are connected to form a complete ring. The inner edges of the magnetic poles of the magnetic bearing of the invention are connected to form one complete ring and construct a uniform radial pole, thus greatly reducing the eddy current loss during the operation of the rotor.
Owner:NAT UNIV OF DEFENSE TECH

Hybrid magnetic bearing of rotor inside vertical coil and assembled structure thereof

InactiveCN101975221BReduce coupling effectDoes not control feature effectsMagnetic bearingsMagnetic bearingMagnetic poles
The invention relates to a hybrid magnetic bearing of a rotor inside a vertical coil and an assembled structure thereof. The hybrid magnetic bearing comprises a rotor and a stator, wherein the rotor comprises an inner magnetic conductive ring and a rotor core, wherein the rotor core is coaxially sleeved at the outer side of the inner magnetic conductive ring; the stator comprises a stator disc, a plurality of coil iron cores and a plurality of electromagnetic coils, wherein the stator disc includes an upper magnetic conductive pole plate, a lower magnetic conductive pole plate, a magnetic pillar installation disc and a permanent magnet; the plurality of coil iron cores are respectively symmetrically arranged at the upper side and the lower side of the stator disc and uniformly distributed along the circumferential direction of the stator disc, and every two coil cores which are symmetrically arranged at the top and the bottom respectively correspond to the position of one magnetic pole; the plurality of electromagnetic coils are respectively vertically sleeved on the coil iron cores; the rotor is arranged in the stator; and the magnetic conductive pole plates are respectively uniformly divided into four-magnetic pole structures in radial shapes along the circumferential direction, and the magnetic poles are connected into an integral ring on an inner edge. The magnetic poles of the hybrid magnetic bearing are connected into the integral ring so as to form radial uniform magnetic poles, therefore the eddy current loss of the rotor during operation is greatly reduced.
Owner:NAT UNIV OF DEFENSE TECH

Reinforcing method for improving anti-seismic property of masonry wall

The invention discloses a reinforcing method for improving anti-seismic property of a masonry wall, and relates to the technical field of building construction. The reinforcing method comprises the following steps that a component A and a component B with the same volume are prepared; the surface of the masonry wall is pretreated, and loose materials on the surface are removed; dust treatment is conducted on the surface of the masonry wall; and the component A and the component B are mixed and sprayed, so that the mixed material formed by mixing the component A and the component B is uniformlysprayed on the surface of the masonry wall to reach a certain thickness. A polyurethane or polyurea elastomer is formed by mixing and reacting the component A and the component B according to the volume ratio of 1: 1, the component A is an isocyanate component solution, and the component B is a hydroxyl compound component solution or an amino compound component solution. Spraying operation can beconducted through a pneumatic spray gun, and after spraying is completed, surface drying of the polyurethane or polyurea elastomer can be achieved within several minutes, complete curing is achievedafter 24 hours, and the phenomenon sagging is not caused.
Owner:HUAQIAO UNIVERSITY

An escape capsule and its intelligent unmanned submarine

The invention discloses an escape compartment which is installed in a placement compartment. The escape compartment comprises a compartment body, and a compartment door is hinged to the compartment body through a first pin shaft. The compartment door is further provided with a supporting hinging plate which is hinged to one end of a first telescopic shaft through a second pin shaft, and the otherend of the first telescopic shaft is arranged in a first air cylinder. The first air cylinder is hinged to the compartment body, a rescue bottom plate is arranged at the bottom of the compartment body, is located on the inner side part of the compartment body and is assembled and fixed with a driving shell, and the driving shell is internally hollow and filled with a drive object. A driving connection hole is formed in the rescue bottom plate, the bottom of a driving barrel penetrates through a locking plate to be assembled with a sealing convex pillar in a sealing mode, and a driving spring is arranged between the locking plate and a sealing partition plate. The sealing convex pillar is fixed to the sealing partition plate, and the outer wall of a barrel body is in assembled with the locking plate in a sealing mode. The locking plate is connected and fixed with the compartment body, a water guide through hole is further formed in the rescue bottom plate, and the water guide through hole enables the inside of the compartment body to communicate with the locking plate. The invention further discloses an intelligent unmanned submarine applying the escape compartment.
Owner:赵勇

Flexible mechanical hydraulic connection device between medium and heavy power device and installation foundation

ActiveCN103912623AImprove deformationAvoid high frequency dynamic hardening phenomenonSpringsShock absorbersClamp connectionMainspring
The invention discloses a flexible mechanical hydraulic connection device between a medium and heavy power device and an installation foundation. The flexible mechanical hydraulic connection device comprises a rubber mainspring component which comprises a shell upper body, a plurality of connection plates are fixedly connected outside the shell upper body, and the lower ends of the connection plates extend out of the edge of the shell upper body; the interior of the shell upper body, a rubber mainspring, an upper framework and a bolt are vulcanized together, the upper framework is positioned in the center of the rubber mainspring, and the bolt is connected with the upper framework and the rubber mainspring; a partition and a liquid column passage component are arranged on the lower portions of the rubber mainspring and the upper framework, a cavity among the rubber mainspring, the upper framework, the partition and the liquid column passage component is an upper liquid chamber, a shell lower body component is arranged below the partition and the liquid column passage component, a space among the partition, the liquid column passage component and the shell lower body component is a lower liquid chamber, and the upper liquid chamber and the lower liquid chamber are communicated through the partition and a liquid column passage of the liquid column passage component; the lower ends of the connection plates are in clamped connection with the upper edge of a shell lower body of the shell lower body component through bending portions.
Owner:SHANDONG UNIV

Method for reinforcing concrete frame joints

A method for reinforcing concrete frame joints comprises the steps that two rectangular special anchoring steel plates on the upper surface and the lower surface of a concrete beam are embedded into upper rectangular holes and lower rectangular holes of the concrete beam respectively, holes are reserved in the four corner points of each special anchoring steel plate, and then four long bolts penetrate into reserved hole channels of the upper special steel plates and the lower special steel plates respectively; and the two special anchoring steel plates are fixedly connected to the upper and lower surfaces of the beam by screwing nuts. The steel wire rope and the heart-shaped clamp penetrate through the bolt with the hole to form a ring, the lap joint of the steel wire rope is screwed and connected through the U-shaped bolt, and then the device is inserted into the cubic blocks on the upper and lower specially-made anchoring steel plates of the beam around the column. After insertion, tensioning equipment is used for applying prestress to tighten the nut to preset applied force, so that the column is reliably connected with the beam. A groove-shaped base plate is arranged on the contact face of the steel wire rope and the column to prevent the steel wire rope from extruding concrete. And angle steel is arranged at the pressed parts of the upper and lower nodes of the beam column and is connected by long bolts. A reinforced component can have good ductility, and the maximum bearing capacity of the reinforced component is improved.
Owner:JIANGSU OCEAN UNIV

Radial decoupling taper magnetic bearing with three degree of freedom

The invention discloses a radial decoupling taper magnetic bearing with three degree of freedom, comprising an upper taper stator, a lower taper stator , an upper taper rotor, a lower taper rotor, radial stators, a radial rotor iron core, a field coil, a permanent magnet, a stator magnetic conductive ring and a rotor magnetic conductive ring, wherein, the taper stators and the taper rotors are the structure of integral ring, the suction generated between the taper stator and the taper rotor passes through the rotor barycenter to control the translation in the direction z of the rotor; the two radial stators comprise stator teeth and stator magnet yokes, the two radial stators are arranged orthogonally when being installed, and a radial stator magnetic isolated ring is arranged between the two stators to let the magnetic circuit between the two radial channels be mutually decoupling; the suction generated between the radial stator and the radial rotor iron core is used to control the translation in the direction x and y of the rotor. According to the invention, the suction generated between the taper stator and the taper rotor passes through the rotor barycenter, when the rotor rotates, the length of the arm of force of negative stiffness is reduced, so that negative torsion moment is reduced; simultaneously, the two radial channels are decoupling, so that the radial bearing capacity is increased.
Owner:BEIHANG UNIV

Mixed magnetic bearing with horizontal-coil uniform radial pole and low-loss outer rotor

InactiveCN101608669BReduce coupling effectDoes not control feature effectsShaftsRotary machine partsMagnetic bearingMagnetic poles
The invention discloses a mixed magnetic bearing with a horizontal-coil uniform radial pole and a low-loss outer rotor, comprising a rotor magnetic conducting ring (1) and a stator (2), wherein the rotor magnetic conducting ring (1) consists of a rotor iron core (11) sleeved with the inner cavity of an external magnetic conducting ring (12); the stator (2) consists of a stator disc (23), an uppermagnetic conducting cover board (21), a lower magnetic conducting cover board (24), eight solenoid coils (22) and a stator mounting shaft (25), wherein the solenoid coils (22) are arranged horizontally and are respectively arranged at the upper side and the lower side of the stator disc (23) by taking the upper magnetic conducting cover board (21) and the lower magnetic conducting cover board (24) as coil iron cores. In the invention, the solenoid coils are arranged horizontally, take the magnetic cover boards as the coil iron cores and are separated from magnetic poles in structure, therefore, the processing and the assembly are more convenient and the magnetic poles can fully utilize circumference area to increase the bearing capability. In addition, the horizontal-coil uniform radial pole structure is more compact, thereby effectively reducing the axial height of the bearing and reducing the weight of the magnetic bearing.
Owner:NAT UNIV OF DEFENSE TECH

Flexible mechanical-hydraulic coupling device between medium and heavy-duty power plant and installation foundation

ActiveCN103912623BImprove deformationAvoid high frequency dynamic hardening phenomenonSpringsShock absorbersEngineeringPower apparatus
The invention discloses a flexible mechanical hydraulic connection device between a medium and heavy power device and an installation foundation. The flexible mechanical hydraulic connection device comprises a rubber mainspring component which comprises a shell upper body, a plurality of connection plates are fixedly connected outside the shell upper body, and the lower ends of the connection plates extend out of the edge of the shell upper body; the interior of the shell upper body, a rubber mainspring, an upper framework and a bolt are vulcanized together, the upper framework is positioned in the center of the rubber mainspring, and the bolt is connected with the upper framework and the rubber mainspring; a partition and a liquid column passage component are arranged on the lower portions of the rubber mainspring and the upper framework, a cavity among the rubber mainspring, the upper framework, the partition and the liquid column passage component is an upper liquid chamber, a shell lower body component is arranged below the partition and the liquid column passage component, a space among the partition, the liquid column passage component and the shell lower body component is a lower liquid chamber, and the upper liquid chamber and the lower liquid chamber are communicated through the partition and a liquid column passage of the liquid column passage component; the lower ends of the connection plates are in clamped connection with the upper edge of a shell lower body of the shell lower body component through bending portions.
Owner:SHANDONG UNIV
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