69results about How to "Meet structural strength" patented technology

The invention discloses a turbulence device for a postcombustion chamber of a hybrid rocket engine, which is suitable for ground heat run test of the hybrid rocket engine, is applied to a central single-channel hybrid rocket engine, but is not limited by specific propellant forms. The turbulence device comprises a combustion chamber component, a spoiler component, a spoiler postcombustion chamber component, a sealing and connecting component and a spray pipe component. The spoiler component and the spoiler postcombustion chamber component are combined into a whole so as to be connected with the spray pipe component through the sealing and connecting component and the spoiler postcombustion chamber component. The spoiler component consists of an internal metal spoiler and an external heat insulating structure, and spoiling holes are uniformly distributed in a circle taking the axis of the engine as the center. The spoiler component is used for realizing the turbulence function in gas in the central area, requirements on structural strength and thermal protection of the turbulence device can be satisfied during the working process of the engine, all the components are connected through a stepped fold line mode and O-shaped sealing ring connection, so that the requirements on airtightness and thermal protection are ensured during the working of the engine.

The invention discloses a laser additive manufacturing technology for a K465 nickel-base high-temperature alloy structure piece, and belongs to the technical field of high-temperature alloy laser additive manufacturing. According to the technology forming technology parameters, the laser power ranges from 1,300 W to 1,600 W, the scanning speed ranges from 3 mm / s to 6 mm / s, the powder feeding rate ranges from 1 g / min to 2 g / min, the scanning manner is linear scanning or staggered scanning, and the overlap rate ranges from 40% to 50%. In the forming process, crack forming and expanding are controlled through a laminated structure, and the laminated structure is a structure piece formed through alternated arrangement of a layer of K465 high-temperature alloy and two layers of Stellite 6 high-temperature alloys. According to the technology, crack-free forming manufacturing of the K465 alloy structure piece is achieved.

The invention discloses a square honeycomb sandwich structure. The smallest mechanical analysis unit of the square honey comb sandwich structure is a first horizontal right-angle side and a first vertical right-angle side which constitute a first right angle and a second horizontal right-angle side and a second vertical right-angle side which constitute a second right angle and are perpendicular to each other, and the two angle sides which are in axial symmetry are connected with each other through adhesion agent. The further expanding structure is that horizontal end points, adjacent to each other from the left to the right, of the smallest mechanical analysis unit are connected, and the upper vertical side end point of the adjacent units from top to the bottom is connected with the lower horizontal side end point. The square honeycomb sandwich structure enables the weight of the sandwich structure to be lighter under the condition that the using requirement of the structure is met, and is more beautiful in shape.

The invention relates to a car frame for an economical passenger elevator. The car frame for the economical passenger elevator comprises an upper beam component (1), a vertical beam component (2), stay bolt components (3), a safety clamp device (4) and a bolt linkage component (5). The safety clamp device (4) is fixed to the bottom end of the vertical beam component (2), one end of the stay bolt component (3) is fixed onto the vertical beam component (2) while the other end of the stay bolt component (3) is fixed onto a car supporting frame, and the stay bolt components (3) in two pairs are arranged in the middle of the vertical beam component (2) and can meet the integral structural strength requirements by means of obliquely staying. The car frame for the economical passenger elevator has the advantages that the car frame is simple and firm in structure, production cost can be reduced while stability in performance and safety in operation of the elevator are guaranteed, and product competitiveness can be improved effectively.

The invention relates to a tool and method for dismounting and mounting a multifunctional online corrosion monitoring probe. The tool is provided with a lead screw, a lead screw fixing base and a positioning assembly, wherein the lead screw fixing base is installed at one end of the lead screw, and the lead screw fixing base is of an opening structure and is matched with a sealing stuffing box of the corrosion monitoring probe; and the positioning assembly is connected to the lead screw in a sliding mode through a sleeve set, and the positioning assembly is provided with a connecting part capable of being connected with the corrosion monitoring probe. The dismounting and mounting tool is used for achieving the two processes of dismounting the corrosion monitoring probe and mounting the corrosion monitoring probe. The tool and method are suitable for dismounting and mounting high-temperature high-pressure probes of various structures under pressure, and dismounting and mounting of corrosion probes under pressure are achieved. Meanwhile, the structure of the tool is optimized, the overall tool is lighter, the total weight of the tool does not exceed 6 kg, and the tool is wider in application range and good in universality, the safety of operators is protected by changing the working mode, and the tool has higher safety and practicality.

The invention relates to a suspended crawler-type cable climbing robot. The suspended crawler-type cable climbing robot comprises a hexagonal machine frame (1), wherein the hexagonal machine frame (1)is formed by butting left and right half machine frames; each half machine frame is formed by fixedly connecting three panels; three sets of suspended crawler-type clasping mechanisms (4) are arranged on the inner side of the hexagonal machine frame (1); one set of suspended crawler-type clasping mechanism (4) is arranged on a middle panel of one half machine frame; the other two sets of suspended crawler-type clasping mechanisms (4) are arranged on left and right panels of the other half machine frame; the three sets of suspended crawler-type clasping mechanisms (4) are arranged in 120-degree angles. The suspended crawler-type cable climbing robot is simple in structure, light in weight, large in effective load and strong in obstacle crossing ability, and is applicable to outer surface inspection of cable bodies such as suspension cables of suspension bridges and stay cables of cable-stayed bridges in a high-altitude environment.

The invention relates to a double-layer thin-wall trough steel bar all-welded vacuum container. Inconel625 nickel-based material with high resistivity and great mechanical property is selected to act as material of the container. The whole container comprises 20 D-shaped cross section fan-shaped segments, and the container wall is mainly formed by an internal wall, an external wall and reinforcing ribs through welding. The container adopts a thin-wall structure, and thickness of the internal and external walls is 5mm. Multiple reinforcing ribs are arranged between the two layers of walls. The trough steel form reinforcing ribs are used and the reinforcing ribs are connected with the external wall in a plug welding mode. Trough steel is relatively wide and is easy to be aligned with the plug welding holes on the external wall, and the external wall is thin so that welding is easier. The material with high resistivity and great mechanical property is selected, and the thin-wall structure and the structure of double walls and multiple interlayer reinforcing ribs are adopted so that the container is enabled to be simple in structure and can meet the strength and annular resistance requirement of a conventional magnet nuclear fusion experiment device.

The invention relates to submarine observation network equipment, and particularly relates to an underwater photoelectric separating cabin comprising a structural framework, submarine cable force-bearing end heads and a photoelectric separating cabin. The submarine cable force-bearing end heads are installed on the structural framework. Force borne by a submarine cable is borne by the structural framework. Photoelectric composite cables of which steel wire armored sheaths are removed are coiled in the structural framework. The photoelectric separating cabin is installed in the structural framework. The photoelectric composite cables enter into the photoelectric separating cabin via through-wall sealing components, and photoelectric separation is completed via the photoelectric separating cabin. A separated optical channel and an electric channel are led out to lower level equipment to work by the photoelectric separating cabin through the through-wall sealing components. Force borne by the submarine cable is borne by the structural framework so that the underwater photoelectric separating cabin is suitable for the requirements of special equipment, small in size, low in weight, economical in installing space and more suitable for the complex wiring requirements of narrow space.

The invention discloses a high-performance folding type wheelchair. The high-performance folding type wheelchair comprises folding brackets, a chair back, handle tubes, a seat cushion, a controller fixed rack, a controller, a rear wheel, a front wheel and a pedal, wherein the two folding brackets are arranged and are symmetrically arranged; the chair back is arranged between the top ends of the folding brackets; handle tubes and the top ends of the folding brackets are arranged one one side of the wheelchair; the seat cushion is arranged in the middle of the folding brackets and is fixedly connected with the folding brackets arranged on the two sides of the wheelchair; the controller is arranged at one end of one of the corresponding folding brackets through a controller fixed support; the rear wheels are fixedly connected with one side of the bottom end of the corresponding folding bracket; the front wheels are fixedly connected with the other side of the bottom end of the corresponding folding bracket through a front wheel connecting structure; and the pedal is arranged between the front wheels and is fixedly connected with the bottom ends of the folding brackets. According to the high-performance folding type wheelchair disclosed by the invention, structural improvement on various components can be realized, so that the complete wheelchair structure is more comfortable to use, is higher in safety, is high in use convenience and is attractive in appearance.

The invention discloses landscaping water-saving equipment which comprises a box body, an inner cavity with an opening is formed in the box body, a bracket is arranged in the right end wall of the inner cavity in a communicating manner, a conical cavity is formed in the lower end wall of the bracket in a communicating manner, a side cavity is formed in the lower end wall of the conical cavity in acommunicating manner, a right side inner cavity located in the box body is formed in the right side of the side cavity, and a water guide device for guiding rainwater into the equipment in an inclined manner is arranged in the inner cavity. The water guide device, a shielding device and a collecting device are adopted, the mode of being mounted on the ground is realized, the occupied space of theequipment is saved, an ingenious structure is adopted so that rainwater and residues are separated through the equipment while the basic structural strength of the equipment is met, the rainwater isefficiently recycled so that the purpose of saving water can be achieved, the residues can be taken out and replaced more conveniently, and the working efficiency and reliability of the equipment aregreatly improved.

The invention discloses a cross-arm shielding cover, which comprises a first body and a second body. The first body and the second body are positioned at the two sides of an electric pole respectively. The first body and the second body are made of engineering plastics, thus being light in weight and high in strength. Therefore, on the premise that the required structural strength for supporting the shielding operation is met, the pick-and-place convenience and the transportation convenience of the cross-arm shielding cover are further improved at the same time.

Arailway vehicle head and chassis integrated structure is characterized by comprising a cab chassis and a passenger room chassis, the cab chassis and the passenger room chassis are both composed of sandwich structures filled with core materials between inner and outer skins, and the inner and outer skin structures of the chassises are formed by continuously laying carbon fiberprepregs. The inner skins of the cab chassis and the passenger room chassis serve as parts of the integrated structures of the chassises, and the functional requirements of floor parts of traditional metal vehicles are also integrated. The foam core materials of the cab chassis and the passenger room chassis serve as parts of the integrated structures of the chassises, and the functional requirements of sound insulation parts and cold-proof parts in the traditional metal vehicles are also integrated. The cab chassis and the passenger room chassis are integrated, a high-temperature pressurizing-curing forming process is adopted, the structural deformation amount in the forming process is small, and the structural strength, rigid mechanical properties and overall machining precision of a vehicle body chassis are improved.

The invention provides a penetration blasting warhead with a titanium alloy matrix containing active fragment inclusions and a preparation method. A partition plate is arranged between a warhead and a shell; the warhead is internally provided with front-section explosive; the shell is internally provided with rear section explosive; the shell comprises a titanium alloy matrix and active fragments, wherein the titanium alloy matrix comprises a titanium alloy thin-wall cylinder framework and titanium alloy metal powder, array empty grooves are formed in the cylinder wall of the titanium alloy thin-wall cylinder framework, and the active fragments are bonded in the array empty grooves; the titanium alloy thin-wall cylinder framework, the active fragments and the titanium alloy metal powder are made into the shell by pressing; the front end of the shell is provided with internal threads connected to external threads at the tail of the warhead; and the tail end of the shell is in threaded connection with a body connecting sleeve and an end cover, and the body connecting sleeve is filled with a fuse. According to the penetration blasting warhead with the titanium alloy matrix containing active fragment inclusions and the preparation method, the 3D printing thin-wall framework is adopted for filling and fixing the active fragments, convenience is provided for design and manufacturing, a framework material is the same as the powder metallurgy shell base material, the interior of the shell has good compatibility, and the structural strength of the shell is guaranteed.

The invention discloses a multi-layer heat insulation pad, which comprises an upper layer heat insulation pad (1), a middle layer heat insulation pad (2), a lower layer heat insulation pad (5) and a cladding layer (3); the lower layer heat insulation pad ( 5), the middle layer heat insulation pad (2) and the upper layer heat insulation pad (1) are installed on the tooling in turn, and pressed from the upper end; the outer surface and the upper and lower surfaces of the three-layer heat insulation pad are covered with a cladding layer (3) , and press it tightly; cut out a V-shaped opening on the upper and lower ends of the cladding layer (3), and press the remaining cladding layers at both ends to the upper heat insulation pad (1) and the lower heat insulation pad (5) top; finally roughen the coating layer (3) on the end faces of the upper layer heat insulation pad (1) and the lower layer heat insulation pad (5) to form the roughened surface (4). The invention adopts the form of multi-layer heat insulation pad, and improves the heat insulation effect by increasing the contact thermal resistance, and solves the temperature index requirements of different equipment, especially these high-precision equipment, in a limited space.

The invention discloses a prefabricated tubular pumping house structure. The structure includes a tubular body, a pumping house baseplate and a shell cover, wherein the tubular body is arranged on the pumping house baseplate, and the shell cover is mounted on the upper end of the tubular body; the tubular body is of a segmental structure which comprises a group of tube bodies separately arranged at the top and the bottom, and the corresponding ends of adjoining tube bodies are vertical-align to each other, and moreover, the junctions of adjoining tube bodies are externally sleeved with an intensified steel belt which is connected with the tube bodies in a welded mode. Since the tube bodies are of a segmental structure and the adjoining tube bodies are shaped by being connected with the intensified steel belt in a welded mode, the structural strength can meet demands. Additionally, the prefabricated tubular pumping house structure has the advantages of being simple in forming process, high in production efficiency, low in fabricating costs, and providing convenience for controlling quality.

The invention discloses a carbon fiber composite vehicle body structure and a design method thereof, and the method comprises the steps: taking a design space, a non-design space, a constraint condition, a calculation condition and an optimization target as the input of simulation software, and creating a vehicle body topological optimization structure model; and performing iterative calculation on the vehicle body topological optimization structure model by using a variable density method to obtain a vehicle body structure force transmission path meeting constraint conditions and working condition requirements under different material utilization degrees, and obtaining an optimal vehicle body structure configuration according to the force transmission path. The design method of the input parameters is given, it is ensured that the needed structural configuration can be obtained, and the simulation efficiency and the simulation precision are improved.

The invention belongs to the technical field of elevator equipment and particularly relates to an elevator decorated ceiling. One face of a longitudinal frame is connected with one ends of arc-shapedsteel channels through one longitudinal U-shaped reinforcing rib. One face of the other longitudinal frame is connected with the other ends of the arc-shaped steel channels through the other longitudinal U-shaped reinforcing rib. The outer surfaces of the arc-shaped steel channels are connected with an arc-shaped decoration cover. Through the elevator decorated ceiling, the problem that the sizesof frames cannot be adjusted to meet different elevator car specifications according to different elevator car sizes due to non-uniform elevator car sizes in the prior art is solved. The elevator decorated ceiling has the beneficial technical effects of being high in applicability, flexible, capable of being disassembled and assembled and high in strength, production efficiency and accuracy.

The invention discloses aluminum alloy and a preparation method and application thereof, a connecting piece for the body frame of a vehicle, and an electric vehicle. The aluminum alloy comprises alloyelements, with the balance being elemental aluminum. The alloy elements are composed of, on the basis of the total weight of the aluminum alloy, 6 to 7 wt% of Si, 0.4 to 0.6 wt% of Mg, 0.2 to 0.4 wt%of Cu, no more than 0.12 wt% of Fe, no more than 0.05 wt% of Mn, no more than 0.2 wt% of Ti and no more than 0.05 wt% of Zn. The connecting piece prepared from the aluminum alloy can meet requirements on the structural strength of the body frame of the vehicle; the connecting piece can replace the traditional welding manner for connection of the body frame and realize rivet connection; and compared with a casting prepared by using a common pressure casting process, the connecting piece provided by the invention has better performance under the condition of same cost.

The invention discloses a supporting system used for a rotor of a high-speed and high-power interior permanent magnet synchronous motor and provided with reinforcing ribs. The supporting system aims to solve the problem that high electromagnetic performance and high mechanical strength of the permanent magnet synchronous motor can not be achieved at the same time. The supporting system comprises a rotor core, permanent magnet bars and a rotating shaft. A center shaft hole and a plurality of permanent magnet grooves are formed in the rotor core in the axial direction, and the permanent magnet grooves are distributed around the center shaft hole. The supporting system further comprises screws, a shaft sleeve and cross beams. The rotor iron is provided with a plurality of beam grooves and a plurality of screw holes. The shaft sleeve is a hollow cylinder, and the side wall of the cylinder is provided with a plurality of through holes for the screws to penetrate out. The cross beams are provided with threaded holes for one ends of the screws to be screwed in. After the shaft sleeve is inserted into the center shaft hole and the cross beams are inserted into the cross beam grooves, one ends of the screws penetrate through the through holes first, then penetrate through the screw holes and are screwed into the threaded holes in the cross beams at last.

The invention discloses a connection structure of large-diameter enhanced pipes, and belongs to the field of pipeline connection auxiliary devices. Each enhanced pipe comprises an inner layer of material, a middle layer of material and an outer layer of material, wherein the middle layer is an enhanced layer and mainly bears loads; and the inner layer and the outer layer are functional layers and have the maintenance function. The connection structure comprises the pipes, an inner sleeve, an outer sleeve, sealing rings and a rubber layer, wherein the inner sleeve and the outer sleeve are directly connected with the enhanced layers of the pipelines in an electrofusion mode; and the edges of the sleeves are connected in a conical surface combination mode, and the sealing rings are added on the edges of the sleeves. By the adoption of the scheme of the connection structure, the requirements for structural intensity, rigidity, sealing performance, runner consistency and the like needed by connection of the pipelines can be met, and the connection structure has the characteristics of being simple and practical in structure and convenient to install.

The invention discloses a double-curved-surface aluminium plate suspended ceiling structure. The suspended ceiling structure comprises a hoop, a keel, panels and a three-dimensional adjusting mechanism, wherein the hoop is assembled with a roof truss of a building; the keel is assembled with the hoop, the keel comprises a plurality of main keels arranged in parallel with one another, and further comprises a plurality of secondary keels arranged in parallel with one another, the length direction of the main keels is perpendicular to the length direction of the secondary keels, and framed keels are further arranged on the lower parts of the main keels and the secondary keels; a plurality of panels are fixed to the lower parts of the framed keels; and the three-dimensional adjusting mechanism comprises vertical threaded rods connected with the main keels and the secondary keels, universal joints connected with the framed keels are arranged at the bottoms of the threaded rods, the universal joints are provided with threaded holes assembled with the threaded rods, and the universal joints are provided with the rotation freedom degree of the universal joints and the rotation freedom degree of the threaded rods around the axis of the threaded rods. According to the double-curved-surface aluminium plate suspended ceiling structure, the structural strength is high, on-site welding is eliminated, maintenance and disassembly are convenient, and when the effect of the curved surface top is needed to be created on the overall, the local panel can conveniently fine adjust the height and adaptively change the angle.

The invention discloses a ceramic heating body which comprises a base, a groove is formed in the surface of the base, a heating material powder mixture is arranged in the groove, the heating materialpowder mixture and the base are jointly sintered into a whole, and the heating body is formed after the heating material powder mixture is sintered. The ceramic heating body has the advantages that the heating material powder mixture is sintered in the groove of the base to form the heating body, the heating body can be fully contacted and fixed with the base, the heating body is not easy to separate from the base, and the heating body is firmly fixed with the base; the purposes of high porosity and high strength are achieved, the structural strength is met under the condition that the ideal atomization taste effect is guaranteed, and the problem of fragmentation is solved; the physical characteristics of the heating body can be adjusted, and the resistivity, the heating value and the resistance coefficient of the heating body can be adjusted.

The invention discloses a heating body and a production process, the heating body comprises a high-porosity ceramic body and a low-porosity ceramic body, the high-porosity ceramic body is embedded ina cavity of the low-porosity ceramic body, the outer side surface of the high-porosity ceramic body is printed with a heating circuit, and the heating circuit is connected with a lead. The process forproducing the heating body comprises the following steps: forming a low-porosity ceramic body penetrating through a cavity, forming a high-porosity ceramic body in the cavity of the low-porosity ceramic body to obtain a composite base, embedding the composite base into ceramic powder, discharging the forming agent in the composite base in a glue discharging furnace, sintering the high-porosity ceramic body and the low-porosity ceramic body into a whole, printing the heating circuit on the outer surface of the high-porosity ceramic body, and welding the lead to an electrode of the heating circuit. The method has the advantages that the problem of low strength caused by high porosity is solved, the purpose of high porosity and high strength is achieved, the structural strength is met underthe condition that the ideal atomization taste effect is guaranteed, and the problem of fragmentation is solved.

The invention belongs to labeling devices, and especially relates to a labeling machine. The machine includes a cross-shaped slide table, a material cabin mechanism, a labeling mechanism, a manipulator and a material receiving box; the manipulator can convey a blood sampling test tube to the labeling mechanism through the cross-shaped slide table after grabbing the blood sampling test tube under the controlling of a central control device, so that the labelled blood sampling test tube can fall into the material receiving box; the manipulator selects an electromagnetic manipulator and incudes two mechanical clamping hands in opposite arrangement; grabbing parts on the front ends of the two mechanical clamping hands can fit with the profile of the blood sampling test tube, and the rear endsof the mechanical clamping hands are in rotatory assembling with rotating shafts; the mechanical clamping hands can be controlled by a power input device to do opposite or reverse rotation so that thegrabbing or loosening of the blood sampling test tube can be realized; and the power input device includes an electromagnet arranged between the middle parts of the two mechanical clamping hands andreset springs connected between the two mechanical clamping hands. Thus, technical problems in the prior art of low work efficiency, complex structure and poor universality can be effectively solved,and therefore, the machine has advantages of being high in working efficiency, compact in structure and good in adaptability.

The invention provides a composite material for a solar component, a solar component frame, a preparation method of the frame and an application of the frame. The composite material for the solar component comprises SMC (surface mount component) sheet molding compounds, short glass fibers, calcium carbonate powder, immerging liquid, alcohol, polyvinyl butyral resin, antioxidants, antiozonants, quenching agents and anti-fatigue agents. The solar component frame is prepared from the composite material, the strength and the corrosion resistance of the composite material can be enhanced by coordination of the components, parts can be integrated, the composite material has high heat distortion temperature and good aging resistance, the solar component frame prepared from the composite materialcan meet the requirement of the solar component IEC61215 for the mechanical load of positive and negative 5400Pa, the weight of the component is reduced, PID (proportion integration differentiation) effects are reduced, and the solar component frame has a wide application prospect.