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

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.

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.

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.

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.

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.

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.

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.

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.

The invention relates to a load-sharing mechanism (2) for a loading platform (1) and the loading platform. The load-sharing mechanism spans over the loading platform (1) and comprises a plurality of main supporting pieces (30, 301), a plurality of supporting components (32, 33, 34, 35) and a plurality of support members (31; 31') extended along the width direction (y) of the loading platform. By adding the mechanism on the upper part of the loading platform, the bearing force of the loading platform which loads is shared by upper mechanism; the bending moment internal force born by the loading platform is reduced; and then the maximal bearing force of the loading platform can be greatly increased.

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.

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.

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.

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.