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559results about How to "High replaceability" patented technology

Design method for vertical tail docking structure

InactiveCN103625631AMeet the use requirementsReduce the amount of connection processingAircraft stabilisationFuselagesMaintainabilityEngineering
The invention provides a design method for a vertical tail docking structure. The design method is characterized in that an amount of single lug joints are respectively arranged at the root of a vertical tail at two sides of a course, a same amount of double lug joints are correspondingly arranged at a docking structure of the vertical tail, the diameters of holes in the single lug joints are equal to those of holes in the corresponding double lug joints, the axes of the holes are coaxial, bushes are pressed into docking through holes of the single lug joints and the double lug joints, and the single lug joints and the double lug joints are fixedly connected in a bolt connection mode. According to the invention, docking between the box section of a vertical tail composite material and fuselage lugs is realized in multi-point docking manner, so connection processing amount is reduced, connection workload is reduced, docking weight is lowered down, assembling workload is decreased, rapid docking between the vertical tail and a fuselage is realized, and connection of a few points enables the purpose of docking to be achieved and requirements on usage of an airplane to be met; thus, a development period is shortened, production cost is reduced, and maintainability and replaceability of a product are improved.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Unmanned aerial vehicle simulated flight training equipment

InactiveCN109754666AImprove performanceImprove the effect of flight simulation trainingCosmonautic condition simulationsSimulatorsUncrewed vehicleComputer module
The invention relates to unmanned aerial vehicle simulated flight training equipment. The unmanned aerial vehicle simulated flight training equipment comprises AR glasses, a scene acquisition module and an action acquisition module arranged on the AR glasses, a virtual scene displaying module, a virtual scene overlaying module, a center control module, a simulated flight hand shank, a computer visual technique computing module and a communication module; the scene acquisition module and the action acquisition module are connected with the center control module respectively, the center controlmodule is in two-way connection with the computer visual technique computing module, the computer visual technique computing module is connected with the virtual scene overlaying module, the virtual overlaying module is connected with the virtual scene displaying module, and the simulated flight hand shank comprises a control board and intelligent equipment connected with the control board. The equipment provided by the invention overlays a simulated flight scene to the real environment and provides people with immersive simulated flight experience by combining control of the simulated flighthand shank, and improves the reflecting effect of simulated flight of an unmanned aerial vehicle or flight simulative training effect.
Owner:智飞智能装备科技东台有限公司

Relay protection device and system, realizing plug-and-play, of transformer station

The invention discloses relay protection device and system, realizing plug-and-play, of a transformer station. The protection device comprises a line protector, a transformer protector, a bus connection protector and a bus separation protector relying on one another and associated with one another; required current and switching amount information are connected to the line protector, the transformer protector and the bus connection protector directly via secondary cables; opening/closing control is output directly via the secondary cables, and the protectors directly act on a switching mechanism of a bay level; the bus voltage collected by a voltage transformer is connected to the bus separator protector in the analog form; and the bus separator protector is directly connected to the line protector, the transformer protector and the bus connection protector via two optical cables in a point-to-point manner. On the premise that faults of the electric network can be overcome rapidly, the relay protection device system of the invention can further reduce the operation risk of the electrical network as well as the labor intensity of maintenance staff, and it is ensured that the electrical network operates safely, reliably and stably.
Owner:STATE GRID SHANDONG ELECTRIC POWER +2

Three-dimensional metal energy dissipation damper

The invention relates to a three-dimensional metal energy dissipation damper. The three-dimensional metal energy dissipation damper comprises an upper connecting plate, a lower connecting plate, U-shaped steel, S-shaped steel, a lateral connecting support column and a central rectangular connecting column. Two flat and straight sections of the U-shaped steel are correspondingly connected with the upper connecting plate and the lower connecting plate to form a whole. The upper end of the central rectangular connecting column is fixedly connected with the upper connecting plate, and the lower end of the central rectangular connecting column is hanging. The outer side surface of a flat and straight section of one end of the S-shaped steel is fixedly connected with the outer side surface of the central rectangular connecting column. The other end of the S-shaped steel and the lateral connecting support column are integrated. The low end of the lateral connecting support column is fixedly connected with the lower connecting plate. The S-shaped steel is symmetrically arranged at the periphery of the central rectangular connecting column. According to the three-dimensional metal energy dissipation damper, the U-shaped steel and the S-shaped steel of special shapes are used as energy dissipation elements, when the upper ends and the lower ends of the U-shaped steel and the S-shaped steel are exerted by shear force and bending moment action, by adopting bending deformation and torsional deformation generated by the U-shaped steel and the S-shaped steel, large deformation is obtained within the limited height, a hysteretic curve is full, the energy dissipation capacity is high, steel fracture is avoided effectively, and the seismic performance of a building structure is improved effectively.
Owner:TIANJIN UNIV

Laser head containing moving atmosphere chamber and method for laser additive nonferrous metal

The invention discloses a laser head containing a moving atmosphere chamber and a method for laser additive nonferrous metal. The laser head containing the moving atmosphere chamber comprises a protective cover, a connecting surface is arranged at the top end of the protective cover, a laser head main body is fixedly connected to the protective cover in a sealed mode, and a first gas channel usedfor introducing inert gas into a molten pool is arranged on the laser head main body; and inert gas inlets which are formed in the outer wall surface of the protective cover are formed in the protective cover, a second gas channel communicating with the gas inlets is formed in the cover body of the protective cover, and an outlet nozzle of the second gas channel is located at the bottom edge of the protective cover. According to the method, the moving atmosphere chamber is used for forming a movable inert atmosphere in air or under an underwater environment to carry out additive manufacturingof the metal and alloy, in the moving atmosphere chamber, laser deposition adopts a layer-by-layer accumulation mode to complete the specified deposition shape; and a fixed vacuum chamber with a largesize does not need to be established, the equipment cost is saved, and the nonferrous metal with excellent performance can be additive manufactured under a specific process condition.
Owner:SOUTHEAST UNIV

Device for detecting steel tie rod or inhaul cable and application

The invention provides a device for detecting a steel tie rod or an inhaul cable and application. A rod section detection mechanism which can stretch and retract relative to a fixing frame is installed in the fixing frame. Sensors are evenly installed in the plane, in the same vertical axis direction as an outer fixing ring, of the inner wall of an inner fixing ring. A lug base detection mechanism used for detecting a lug base of the detected steel tie rod or inhaul cable is installed on the fixing frame. The device is used for detecting the application of the steel tie rod or the inhaul cable through a metal magnetic memory detecting method. The inner diameter of a detection cavity can be adjusted immediately according to the diameter changes of the detected steel tie rod or the inhaul cable, and the adaptability is good. A detection gap produced by reducing when the outer fixing ring is expanded can be filled in time, and therefore a reducing detection ring is a complete detection ring both before and after reducing; due to the fact that the sensors are evenly distributed, comprehensive detection can be achieved, and the detection accuracy is greatly improved. The rod section of the detected steel tie rod or inhaul cable is detected, and meanwhile the lug base of the detected steel tie rod or inhaul cable is comprehensively detected.
Owner:西安建筑科大工程技术有限公司

Web friction-type shape-memory alloy rod self-resetting steel frame beam-edge column joint

ActiveCN107355000ASolve the problem of inconvenient arrangementHigh replaceabilityProtective buildings/sheltersShock proofingFloor slabShape-memory alloy
The invention discloses a web friction-type shape-memory alloy rod self-resetting steel frame beam-edge column joint comprising steel columns, steel beams, shape-memory alloy rods, L-shaped supports and friction energy dissipaters. The steel beams are located on one sides of the steel columns; the shape-memory alloy rods transversely penetrate through the steel columns; the L-shaped supports are located on the inner sides of flanges of the steel beams; and the friction energy dissipaters are located in the middles of webs of the steel beams and comprise channel steel, energy dissipation friction pieces and high-strength bolts, wherein the channel steel is connected with flanges of the steel columns and the webs of the steel beams, the energy dissipation friction pieces are arranged between the channel steel and the webs of the steel beams in a filling mode, and the high-strength bolts penetrate through the webs of the steel beams and enable the channel steel, the energy dissipation friction pieces and the webs of the steel beams to be connected together. Arranging convenience of a floor at the joint can be improved; the anchoring effect of the shape-memory alloy rods and the steel beam ends is strengthened while the local deformation resistant capability of the flanges of the steel beams is reinforced; and the replaceability of members is improved while the self-resetting performance and hysteretic energy dissipation of the joint are effectively improved.
Owner:SOUTHEAST UNIV

Intelligent double-sided grinding head assembly of vertical high-precision high-speed grinding machine

The invention relates to an intelligent double-sided grinding head assembly of a vertical high-precision high-speed grinding machine. The intelligent double-sided grinding head assembly comprises a machine head sleeve, a main shaft rotating core shaft sleeve, a main shaft rotating core shaft, a V belt wheel core shaft fixing sleeve and a V belt wheel core shaft, wherein the V belt wheel core shaft is positioned on the periphery of the main shaft rotating core shaft; a square window is formed in the machine head sleeve; a screw rod nut seat which is fixedly connected with the outer wall of the main shaft rotating core shaft sleeve and penetrates through the square window is mounted at the square window; a screw rod nut and a longitudinal ball screw matched with the screw rod nut are arranged on the screw rod nut seat; and a lifting reducer and a servo motor are mounted at one end of the longitudinal ball screw. According to the intelligent double-sided grinding head assembly, a grinding head main shaft lifting driving component and a grinding head main shaft rotating driving component are mutually independent, the lifting driving component is oppositely positioned at the side part of a main shaft, and an externally arranged structure is adopted, so that the assembly, control and maintenance are more convenient, the changeability of parts is high, the entire machine cost and maintenance cost and are greatly reduced, and the service life is greatly prolonged.
Owner:DONGGUAN HONGJINSHUN MACHINERY MFG

Automatic attaching machine for electronic product auxiliary materials

The invention discloses an automatic attaching machine for electronic product auxiliary materials. The automatic attaching machine comprises a conveying mechanism, a positioning and supporting mechanism, an attaching mechanism and a material supplying mechanism; the conveying mechanism is horizontally arranged on a rack; the positioning and supporting mechanism is arranged at an attaching stationin the conveying mechanism, when a fixture moves to the attaching station, the fixture is positioned by the positioning and supporting mechanism, and a product in the fixture penetrates through the fixture upwards to be jacked and supported and adsorbed and fixed downwards through the positioning and supporting mechanism; the material supplying mechanism is arranged on one side of the conveying mechanism and used for guiding out at least two auxiliary materials; and the attaching mechanism is arranged between the attaching station and the material supplying mechanism in a crossing mode and used for attaching the auxiliary materials to the product after the auxiliary materials guided out of the material supplying mechanism are adsorbed, fixed and moved to the attaching station. According tothe automatic attaching machine for the electronic product auxiliary materials, the functions of multi-product bearing, fixture positioning, product jacking and supporting and adsorbing and heating are achieved, the material supplying assembly achieves quick disassembling and replacing, the condition that a material belt is jammed and pulled to be broken is reduced, a multi-material automatic material taking and attaching function is achieved, the universality is high, and the part replaceability is high.
Owner:SHENZHEN NUOFENG OPTOELECTRONICS EQUIP

Anti-seismic toughness steel pipe concrete column and shape steel concrete beam frame and construction method

The invention discloses an anti-seismic toughness steel pipe concrete column and shape steel concrete beam frame and a construction method thereof. A frame structure is constructed on the basis of concrete and comprises a steel pipe concrete column, angle steel supports, connecting screw rods, a limiting component, anchor rods, a shape steel concrete beam, a beam end part overhanging pre-buried steel beam, pull rods and energy dissipation components. A plurality of butterfly spring groups are arranged in the middle of the beam end part overhanging pre-buried steel beam side by side, the pull rods are connected with beam column joints, the energy dissipation components are arranged on an upper flange and a lower flange of the beam end part overhanging pre-buried steel beam, the bottom of the column is placed in a groove of a concrete foundation, the lower ends of the anchor rods are anchored in the concrete foundation and penetrate through the angle steel supports and a limiting device,and the butterfly spring groups are installed at the top ends of the anchor rods on the upper portions of the angle steel supports. By means of the frame, a beam column can be kept elastic under thestrong earthquake action, the residual deformation of the structure under the earthquake action can be effectively reduced, and the replaceability of the external energy dissipation and self-reset components is realized.
Owner:HAINAN UNIVERSITY

Combined type high-power semiconductor laser side pumping source and preparation method thereof

The invention discloses a combined type high-power semiconductor laser side pumping source and a preparation method thereof. The invention aims to solve the technical problems of low finished product rate, low yield, inconvenience for assembly, disassembly and maintenance, shorter service life, and the like of a semiconductor laser pumping source in the prior art. The side pumping source comprises a semiconductor laser module group and a heat radiator, wherein the semiconductor laser module group comprises one or more semiconductor laser modules; and all semiconductor laser modules are fixedly arranged on the heat radiator in a movable linkage way or a welding way. In the invention, the semiconductor laser modules can be tested, aged and screened in advance and can be singly packaged, tested and aged; and different chips can be selected for combining and controlling, and the multi-wavelength wide spectrum output can be realized. If one module of the pumping source is abnormal in the use process, the module can be singly replaced so that the combined type high-power semiconductor laser side pumping source disclosed by the invention has the advantages of higher yield and longer service life.
Owner:FOCUSLIGHT TECH

Door body of refrigeration plant and refrigeration plant with door body

The invention discloses a door body of a refrigeration plant. The door body comprises a frame, a door liner, a first face plate and a second face plate. The frame comprises a left stand column, a right stand column, an upper end cover and a lower end cover, the upper end cover is connected with the upper end of the left stand column and the upper end of the right stand column, the lower end cover is connected with the lower end of the left stand column and the lower end of the right stand column, and thermal insulation material space with the opened front side and the opened back side is defined by the left stand column, the right stand column, the upper end cover and the lower end cover. The door liner is arranged on the back surface of the frame so as to close the back side of the thermal insulation material space. The first face plate is arranged in the frame, the front surface of the first face plate is flush with the front surface of the frame so as to close the front side of the thermal insulation material space. The second face plate is detachably arranged on the first face plate and connected with the front surface of the first face plate. According to the door body of the refrigeration plant in the embodiment, the convertibility of the face plates of the door body of the refrigeration plant is achieved, the requirements of different users for appearance changes of the door body of the refrigeration plant at different stages can be met, and the maintaining cost of the door body is reduced.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD

Horizontal-array high-power semiconductor laser capable of replacing chip

The invention discloses a horizontal-array high-power semiconductor laser capable of replacing a chip, which comprises a refrigerator. A liquid passage is arranged in the refrigerator; the upper end face of the refrigerator is a horizontal mounting surface; a plurality of laser chip mounting components, which are parallel to and independent from one another, are arranged on the horizontal mounting surface; each laser chip mounting component consists of the chip, and a lower insulating strip, a positive heat sink, an upper insulating strip, a chip cathode connection piece and an electrode connection piece which are sequentially laminated and fixed from bottom to top; the anode surfaces of the chips are connected with the positive heat sinks, while cathode surfaces are connected with the electrode connection pieces; and fixed plates are arranged at the upper ends of the plurality of laser chip mounting components. In the horizontal-array high-power semiconductor laser capable of replacing the chip, the plurality of independent laser chips (bars) are taken as cores and are arranged into a laser chip mounting component array in a horizontal direction, and the plurality of laser chip mounting components share the refrigerator, so thermal resistance can be reduced, radiation capacity can be improved, the optical output power of the laser is improved, and the quality of laser beams can be greatly improved under the condition of adding an alignment system.
Owner:FOCUSLIGHT TECH
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