10results about How to "Large adjustment space" patented technology

The invention relates to the technical field of zirconium alloy material preparation, in particular to a preparation method of a nuclear-grade zirconium or zirconium alloy cast ingot containing scrap-like residues. The method comprises the following steps: 1) identifying, classifying and collecting zirconium or zirconium alloy scrap-like residues; (2) size and surface treatment is conducted on the scraps; (3) sampling and detecting the treated scraps; (4) the total feeding amount and the scrap adding proportion are determined, the alloy element adding amount is calculated, and the qualified scrap is evenly mixed with sponge zirconium according to the proportion; 5) pressing the mixed scraps, zirconium sponge and alloy addition raw materials into electrode blocks, and welding a plurality of electrode blocks to obtain a consumable electrode for smelting; according to the method, the residual material recovery process and flow are simplified, the labor intensity and the cost are reduced, the high-quality nuclear grade cast ingot meeting the requirement is prepared, and the residual material recovery efficiency is improved.

The present application relates to ceramic matrix composite forming die, tooling and method, specifically relates to large complex closed cavity thin-walled structure ceramic matrix composite component overall forming tooling and method, in order to solve the existing technology exists ceramic matrix composite component parts assembly gap, overall strength is insufficient, service life is reduced and other insufficient, the present application large complex closed cavity thin-walled structure ceramic matrix composite component overall forming tooling includes shaping auxiliary tooling and graphite forming die, shaping auxiliary tooling includes M skeleton box shaping tooling and first bottom plate, wherein, M is greater than or equal to 1, graphite forming die includes M inner mold forming die, annular forming die and outer mold forming die, the present application large complex closed cavity thin-walled structure ceramic matrix composite component overall forming method is based on the above tooling, in turn includes preform shaping, preform densification forming, component processing, realizes overall forming.

The utility model belongs to the technical field of vehicles, and particularly relates to a damping connecting support and a wheelbarrow, the damping connecting support comprises a frame, a wheel, connecting rod assemblies and elastic assemblies, and the connecting rod assemblies are arranged on the two sides of the wheel; the connecting rod assembly comprises a first connecting rod module and a second connecting rod module, the upper end of the first connecting rod module is rotationally hinged to the frame, the lower end of the first connecting rod module is rotationally hinged to the upper end of the second connecting rod module through a connecting component, and the lower end of the second connecting rod module is hinged to the axis of the wheel; the first connecting rod module and the second connecting rod module are connected with a frame and wheels through the first connecting rod module and the second connecting rod module, and vibration energy is fully absorbed and dispersed through the elastic assembly. The vehicle frame is prevented from inclining forwards or backwards in the damping process when the vehicle deals with complex road conditions and large impact, the height of the vehicle frame is reduced, and the gravity center of the vehicle is lower.

This invention discloses a solid asphalt based on ultrafine rock asphalt, a high-performance asphalt mixture prepared from the solid asphalt, and a preparation method thereof. The solid asphalt includes ultrafine rock asphalt, desulfurized rubber powder, binder, interface reinforcing agent, filler, and exothermic accelerator, wherein the exothermic accelerator is selected from dicyandiamide, 4,4'-diaminodiphenyl sulfone, phthalic anhydride, or pyromellitic dianhydride. The asphalt mixture includes solid asphalt, aggregate, and blending oil, wherein the blending oil includes epoxy resin blending oil and blending oil B. In preparing the asphalt mixture, after determining the aggregate gradation, the aggregate is preheated to 170-180°C, and then solid asphalt is added and mixed for 8-12 seconds to obtain the mixture. Then, the epoxy resin blending oil is preheated separately, and then blending oil B and epoxy resin blending oil are added to the mixture sequentially, and mixed for 30-60 seconds. The present invention, based on solid asphalt, not only changes the existing liquid asphalt mixing system, but also enables rapid liquefaction of asphalt within aggregates in a short time and improves the interfacial adhesion between asphalt and aggregates.

The invention discloses a large-tube-hole continuous spiral baffle plate heat exchanger which mainly comprises a shell, heat exchange tubes, spiral baffle plates, pull rods, pipe spacers, tube plates, tube boxes, connecting tubes and the like, the heat exchange tubes are evenly arranged in the shell and penetrate through the spiral baffle plates to be fixed to the tube plates at the two ends, the spiral baffle plates are used for supporting the heat exchange tubes, and the tube boxes are used for supporting the heat exchange tubes. The spiral baffle plates are arranged in a spiral mode relative to the axis of the heat exchange tube, the diameter of tube holes in the spiral baffle plates is larger than the outer diameter of the heat exchange tube, the difference value range of the diameter of the tube holes and the outer diameter of the heat exchange tube is 1-3 mm, the heat exchange tube penetrates into the tube holes to form annular holes, high-temperature-resistant inorganic sealant is poured into the annular holes, and the annular holes are completely made up. And the heat exchange tube and the spiral baffle plate are fixed together through glue. The large-pipe-hole continuous spiral baffle plate greatly reduces the manufacturing precision requirement and the installation difficulty of the heat exchange pipe, pipe hole annular gaps are made up through sealant, leakage flow of shell pass fluid is effectively avoided, and the heat transfer performance of the heat exchanger is effectively improved.

The utility model provides a damping mechanism for an aircraft interior, which relates to the field of aircraft interior accessories and comprises a fixing box and a support, the fixing box is provided with a containing space, a damping bag is arranged in the containing space, and the support enters the containing space and is connected with the damping bag, so that the support has a damping function within the deformation range of the damping bag. The damping mechanism for the aircraft interior trim has the advantages of being good in damping effect, large in radial rigidity and axial rigidity, capable of being rapidly disassembled and assembled and the like.

This utility model discloses an adjustable hydraulic slope protection net, relating to the field of hydraulic construction technology. Its key technical features include: a foldable protective net panel with support mechanisms on both sides; each support mechanism includes a column, the side of which is hinged to the edge of the protective net panel; a weighted base fixedly mounted at the bottom of the column; a rotating block rotatably connected to the top of the column via a pivot; a limiting plate fixedly mounted on one side of the rotating block; a limiting space between the limiting plate and the rotating block, which is adapted to the limiting plate; and two support mechanisms that can be interlocked via the limiting plate. A limiting component is provided on the side of the rotating block away from the limiting plate to restrict its rotation. This utility model is easy to assemble and disassemble, improving assembly and disassembly efficiency.

This utility model discloses a multi-angle adjustable connector for a ceiling transition layer, including a bolt ball connector, a hanger, a rotating disk, and a C-shaped connector. The bolt ball connector, hanger, and rotating disk are connected sequentially from top to bottom. The C-shaped connector is installed on the outer wall of the rotating disk. The C-shaped connector includes a C-shaped connecting block and a U-shaped connecting block. The two sides of the C-shaped connecting block are respectively attached to the upper and lower end faces of the rotating disk. The C-shaped connecting block is provided with connecting bolts. The C-shaped connector of this utility model can be adjusted left and right by 90°, providing a large adjustment range. It is suitable for installation in large spaces with irregularly shaped grid-frame decorative ceiling transition layers. Furthermore, when connecting with the rotating disk, the connecting bolts do not require precise insertion into the rotating disk, ensuring connection strength while reducing the precision requirements during installation, thereby reducing rework rate and improving installation efficiency.

The application provides a kind of suspension disc positioning mechanism and surgical robot, the suspension disc positioning mechanism includes at least two suspension discs, each of the suspension disc is respectively with a first rotation axis, the suspension disc is rotatably arranged around the first rotation axis, the first rotation axis of at least two suspension discs extends in the same direction;At least two suspension discs are configured to move in the direction perpendicular to the first rotation axis;Each of the main suspension disc is respectively used for at least one mechanical arm connection.Such, at least two suspension discs are rotatably arranged around the respective first rotation axis, and at least two suspension discs also move in the opposite direction perpendicular to the first rotation axis, each suspension disc is respectively hung at least one mechanical arm, and multiple mechanical arms can be quickly adjusted to the corresponding position with the suspension disc, to meet the quick operation layout of mechanical arm.In addition, by distinguishing at least two suspension discs, each mechanical arm on the suspension disc can obtain greater adjustment space.

The invention relates to the technical field of pipeline engineering, in particular to a multi-fixed-point deformation buffering and stress dispersion arrangement method for a large-pipe-diameter inclined pipeline. According to the method, firstly, mechanical analysis and point distribution planning are carried out, and at least three false fixing points are additionally arranged on an inclined pipe section between fixing points on a slope and fixing points under the slope according to an analysis result. Then material selection and structural design are conducted, structural steel with good elastoplasticity is selected to construct false fixing points, axial thrust and gliding component force borne by the pipeline are absorbed and dispersed through deformation of the structural steel, and buffering devices are arranged at the fixing points. And finally, construction and connection are implemented. By additionally arranging the deformable false fixing points, the stress of the pipeline is actively dispersed and buffered, the problem of stress concentration of the fixing points under the slope is effectively solved, and the service life of a pipeline system is remarkably prolonged.