78results about How to "Improve wind stability" patented technology

The invention provides an especial-big span suspension bridge of a uniparted hyperboloid space rope net main cable and a construction method thereof. A straight line character of the uniparted hyperboloid is used to change a vertical parallel cable rope system of an original suspension bridge. A thick and heavy centralized cable rope is changed into a dispersive space steel wire cable rope. Multiple strand of steel wire cable ropes are arranged in a cross mode. Space rope net main cable-cross nodes are fixed to form a space cable rope system of the uniparted hyperboloid type. An oval steel strengthening ring beam is arranged. A suspender and a stiffening beam are installed. A gate-type rigidity middle buckle is arranged. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system is built. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system has the advantages of being strong in span capacity, large in space structure rigidity, high in screw frequency ratio, good in wind resistance stability and the like. The novel space main cable system suspension bridge is capable of radically saving the problem of the wind resistance stability of the big span suspension bridge and used for projects of a striding sea connected island. The especial-big span channel suspension bridge of 3000-5000 meters is built.

The invention relates to the technical field of illuminating equipment and discloses a solar street lamp. The solar street lamp comprises a street lamp body and a solar cell panel. The solar cell panel is hinged to the top end of the street lamp body. A hollow sealing plate is arranged on the upper portion of the street lamp body. A piston cylinder is arranged above the sealing plate. A piston isarranged in the piston cylinder. An expansion block is arranged on the upper surface of the piston. A piston rod is arranged on the lower surface of the piston. A slide groove is formed in one end ofthe solar cell panel. A slide block is connected into the slide groove in a sliding mode and connected with a supporting rod. The supporting rod is fixedly connected with the piston rod. The sealing plate communicates with suction discs used for stabilizing the solar cell panel. Ventilation holes are formed in the solar cell panel. An air guide mechanism, a turbine and a negative pressure blade which are used for stabilizing the solar cell panel are arranged on the lower surface of the solar cell panel. According to the solar street lamp, solar energy is fully used, and the problem that a solar street lamp in the prior art is poor in wind resistance stability is solved.

The invention relates to a production method for a wound and attached steel wire crown band ply of an all-steel radial-truck meridian tire, and belongs to the technical field of tire production. During the production of a belt ply of an all-steel radial-truck tire, two layers of steel wire crown band plys are wound at the two sides of the belt ply, and then are attached to the tire surface part; the width of the steel wire crown band ply is the width of two or more steel wires, and the steel wires are unwound by a spindle frame; the wound and attached steel wire crown band ply is rubberized and extruded in a previous procedure, and is spirally wound on an unwinding material roll. Compared with a traditional attached zero belt ply, the steel wire crown band ply produced by the invention has no lap joint, and the invention increases the uniformity of the tire, ensures the feasibility of tire retreading and pattern reincising, provides relatively uniform impression, ground pressure distribution and abrasion, allows the steel wire cord structure to be not limited to a highly-elongated cord, provides relatively uniform and stable tension control, and ensures the stability of various performance of the tire. Compared with the process for spirally winding a single steel wire on the belt ply, the production efficiency of the invention is increased by two times, and the winding stability is high.

The invention discloses a high-damping composite stay cable based on carbon fibers and steel strands, and relates to the field of stay cables. The high-damping combined stay cable comprises a core layer, 2-4 composite layers and 1-2 layers of sheaths which are arranged in sequence from inside to outside, wherein a sticky elastic damping material is filled between the core layer and each composite layer; the core layer consists of a plurality of high-intensity steel strands which are tightly arrayed; the composite layers consist of a plurality of composite fibers which are tightly arrayed; the adjacent composite layers are tightly attached; the composite fibers are prepared from a high-intensity steel wire and six carbon fibers; the six carbon fibers wrap the periphery of the high-intensity steel wire and are twisted to form a whole. Vibration attenuation of the stay cable can be accelerated, and the wind-resistant stability of an ultralong stay cable is effectively improved; the weight of the stay cable is reduced, and the transverse shear strength of the stay cable is guaranteed; furthermore, single-cable transportation and cable hanging can be realized, and the ultralong stay cable construction difficulty is reduced.

The invention provides a high-speed train ballastless track board general accurate measurement prism support. The high-speed train ballastless track board general accurate measurement prism support includes a supporting platform, a centering rod connected to the supporting platform, and two supporting feet; the supporting platform is isosceles right triangle-shaped; the centering rod is fixedly connected to a right angle of the supporting platform; the two supporting feet are hinged to tail ends of two right angle sides of the supporting platform; a circular level is arranged on an upper part of the centering rod, and is used for indicating rough leveling state of brake levers of the supporting feet; an embedded base is arranged on the bottom of the centering rod; the embedded base includes a disc-shaped base body and a radial bearing, a member embedded in a ballastless track board fastener threaded hole is arranged on the bottom of the base, the member is a hollow drum type cylinder, the centre of sphere of the radial bearing is positioned on a track board plane, the bottom of the centering rod matches an inner ring of the radial bearing; and the supporting feet are connected to the supporting platform through a precise leveling spiral device. The high-speed train ballastless track board general accurate measurement prism support matches the general construction accurate measurement technology, and lowers the difficulty of accurate measurement and the working loads of measurement workers.

The invention provides a tube-in-tube bridge tower of a space hybrid cable net suspension bridge with a parabolic arched tower cap. The tube-in-tube bridge tower of the space hybrid cable net suspension bridge with the parabolic arched tower cap is characterized in that the parabolic arched tower cap with a rigid tie rod is arranged at the top of a tube-in-tube herringbone tower column; one end ofa giant diagonal bracing is anchored to the waist of the tube-in-tube herringbone tower column; the giant diagonal bracing supports the arch foot of the parabolic arched tower cap and forms a racket-like bridge tower structure; a load-bearing steel cable is placed on the tube-in-tube herringbone tower column, and a carbon fiber space cable net is anchored on the parabolic arched tower cap to enhance the spatial stiffness of the suspension bridge and realize the cooperation between two groups of cables; a concrete-filled rectangular steel tube corner column and a grille tubular double-steel concrete composite shear wall are adopted to form a tube structure; the tube-in-tube herringbone tower column comprises an outer tube structure, a core tube structure and multiple rigid diaphragms. Thetube-in-tube bridge tower of the space hybrid cable net suspension bridge with the parabolic arched tower cap has various advantages, such as strong structural rigidity, good wind resistance stability, rich facade modeling, strong earthquake resistance, and capability of being adopted as a bridge tower structure of a space cable net suspension bridge with a super-long span of 4000 meters.

The invention discloses a butterfly-type cable-stayed bridge system. The system comprises bridge towers, main girders, abutment piers, stayed cables and asymmetric curved arches. The asymmetric curved arches are arranged in a main span, and in the area, the two ends of each stayed cable are connected with the corresponding bridge tower and the corresponding asymmetric curved arch respectively. Inclined suspenders located on the same straight lines of the stayed cables are arranged at anchorage points on arch ribs, and the inclined suspenders are connected with the main girders. Meanwhile, the tension of the inclined suspenders is larger than the cable force of the stayed cables, so that the arch ribs are compressed, and at the moment, loads are born by the stayed cables and an arch-girder system together. The asymmetric curved arches have the stiffening effects on the stayed cables in the areas of the asymmetric curved arches, the main girders, the asymmetric curved arches and the inclined suspenders in the arches form a spatial framework structure together, and the space stiffness of the cable-stayed bridge main span is improved so as to be beneficial to the effect of resisting the wind loads; meanwhile, the downward deflection deformation of the main girders is reduced, the deformation of the stayed cables is reduced, so that the cable force of the main span is reduced, and the stress state of the bridge towers is improved.

The present invention discloses a gravity center adjustment device (2) for a wind turbine installation vessel. The gravity center adjustment device (2) is movably mounted to an outside of a vessel body (4) of the wind turbine installation vessel, so that the gravity center adjustment device (2) can selectively move in a plane substantially parallel with the vessel body (4). Since the gravity center adjustment device (2) according to the invention is movably installed to the vessel body and can move in a plane substantially parallel with the vessel body (4) so as to adjust the horizontal position of the gravity center of the installation vessel, its ability of adjusting the gravity center of the wind turbine installation vessel can be improved and the stability of the wind turbine installation vessel can be improved. Therefore, the operation efficiency can be improved and the cost of constructing a wind power plant on the offshore can be reduced. The present invention also discloses a wind turbine installation vessel including the gravity center adjustment devices (2) described above.

The invention relates to a wind-resistant H-shaped steel column for a high-speed railway contact network and a method for determining an aperture ratio of the wind-resistant H-shaped steel column. The section of the H-shaped steel column for the high-speed railway contact network is H-shaped, so vortex induced vibration and galloping in a crosswind direction happen easily; the long-time higher-amplitude vortex induced vibration leads to fatigue damage of the connected part of the steel column and the galloping leads to direct damage of a strut. A hole is formed in a belly plate of the H-shaped steel column; the structure vibration frequency and the vibration mode of the H-shaped steel column which is not provided with the hole can be obtained by constructing a contact network system structure finite element model and analyzing a structure power characteristic; the strouhal number, the vortex induced vibration locked wind speed, the vortex induced vibration amplitude and the galloping critical wind speed of the section of the H-shaped steel column which is not provided with the hole are tested; and the aperture ratio of the belly plate of the H-shaped steel column is determined through a power section model wind tunnel test, so the wind-resistant stability of the H-shaped steel column is improved effectively. The wind-resistant H-shaped steel column is applicable to wind resistance of the steel column for the high-speed railway contact network and design of the H-shaped steel column with higher wind-resistant stability, and is particularly widely applied to regions under unfavorable environmental conditions, such as wind regions and tuyeres.

The invention provides a rewinding machine comprising a station rotating assembly, a plurality of rewinding assemblies and two rewinding driving assemblies. The station rotating assembly comprises a rotary disc and a rotary disc driving device, the rotary disc driving device drives the rotary disc to rotate around the axis of the rotary disc, the rewinding assemblies are arranged on the rotary disc, and each rewinding assembly comprises a rewinding roller, a driving wheel and a smooth wheel, wherein the rewinding roller, the driving wheel and the smooth wheel on each rewinding assembly are arranged coaxially, and the driving wheel and the smooth wheel are staggered in the circumferential direction; and the rewinding driving assemblies are in driven connection with the driving wheels, and the rewinding driving assemblies are relatively in sliding connection with the smooth wheels. Through drive of the rewinding driving assemblies and two adjacent rewinding assemblies, efficient uninterrupted paper winding can be achieved, and the production efficiency is greatly improved.

The invention provides a wind-resistant and anti-falling safety cone bucket with a blasting flashing function. The wind-resistant and anti-falling safety cone bucket with the blasting flashing function is composed of a reflective cone bucket body 1, two sets of LED blasting flashing lights 2, a power supply unit 3, a base balance weight 1.1 and wind guiding grooves 1.2; the LED blasting flashing lights 2 are installed on the periphery of the reflective cone bucket body 1, the power supply unit 3 supplies power by adopting a lithium battery and is connected with the LED blasting flashing lights 2, the base balance weight 1.1 is made of lead and installed on a base of the reflective cone bucket body 1, and the wind guiding grooves 1.2 are of a rhomboid structure and are formed in the upper portion and in the middle of the reflective cone bucket body 1 respectively. By adopting the structure, the warning effect of the reflective cone bucket body can be effectively improved, and the usage effects of the safety cone bucket in windy, rainy and snowy weather are guaranteed.

The invention relates to an air knife body, an air knife device and drying equipment. The air knife body comprises a connecting section, an air guide section and an air outlet section, wherein the connecting section, the air guide section and the air outlet section are connected in sequence and communicate with one another; the end, far away from the air guide section, of the connecting section can communicate with an air knife seat; the cross section, perpendicular to the air outlet direction, of the air guide section changes gradually in the air outlet direction; and the cross section, perpendicular to the air outlet direction, of the air outlet section keeps constant in the air outlet direction. According to the air knife body, the air knife device and the drying equipment, the air outlet section of the air knife body can realize parallel air output, the wind blown out by the air knife body is in a curtain shape, outlet air is more uniform, and the air output stability of the air knife body is improved. Therefore, the drying efficiency and drying quality of the air knife device and the drying equipment are improved overall, and the oil content fraction defective of dried parts after the parts are dried and discharged out of the line is lowered.

The invention relates to a furling mechanism for a covering curtain. The furling mechanism comprises a rotating shaft and an outer pipe, the rotating shaft is used for winding the covering curtain, the outer pipe contains the rotating shaft and the covering curtain, the axial direction of the rotating shaft is parallel to that of the outer pipe, an annular supporting element is fixed into the outer pipe, the rotating shaft is rotatably arranged on the supporting element, and an elongated opening for extending of a free end of the covering curtain is axially formed in the side of the outer pipe. The furling mechanism is characterized in that two coil springs are coaxially arranged at two ends of the rotating shaft respectively, each coil spring comprises an inner end and an outer end, each inner end is positioned at the center, each outer end is positioned on the periphery, the inner ends of the coil springs are connected with the rotating shaft, and the outer ends of the coil springs are connected with the outer pipe. According to the furling mechanism, the contactless coil springs replace traditional left-handed springs to realize a furling function, structures such as a spring bead and core iron are omitted, and the furling mechanism is simpler in structure and more stable in performance. As the sizes of the coil springs are small, the coil springs are arranged at the ends of the rotating shaft, less space is occupied, and weight and noise in operation can be greatly relieved as the core iron is omitted. The furling mechanism inherits characteristics of the coil springs, and the service life can be prolonged.

The invention discloses a novel vector thrust misalignment double-wing tailstock type vertical take-off and landing unmanned aerial vehicle. The unmanned aerial vehicle is provided with two wings which are in vertical misalignment arrangement, upper and lower wing supporting plates are used for supporting wings, and the tail of each supporting plate is provided with a tail vane surface; a middle vehicle body is connected by two carbon fiber tubes and the upper and lower wing supporting plates positioned on the left and the right of the two carbon fiber tubes; and double vector power systems are fixed on the front carbon fiber tubes. By use of the unmanned aerial vehicle, under a situation that the floor area and the windward area of the tailstock type unmanned aerial vehicle are effectively controlled, an effective lifting area is enlarged, weight-carrying performance is improved, and maneuvering performance is improved due to a short-tail full-motion control plane design. The unmannedaerial vehicle is especially suitable for short-distance high-flexibility investigation. For example, the unmanned aerial vehicle can be used for police departments to carry out expressway escaped criminal tracking.

The invention discloses an air entraining self-balancing type unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles. According to the air-entraining self-balancing type unmanned aerial vehicle, firstly, the air-entraining arc plates are used for achieving the effective drainage and pressure reduction process on external wind power, the wind pressure influence of the wind power on the unmanned aerial vehicle body is effectively reduced, and the rollover situation is reduced, and first balance effect is provided for stable flight of the unmanned aerial vehicle body; secondly, when the unmanned aerial vehicle body turns over on one side under the action of wind power, the balance gravity ball automatically moves to apply pressure to the air control chain plate, so that the air control chain plate displaces, the air inlet hole is opened, guided wind power enters the floating increasing air bag, and the floating increasing air bag expands, so that the air resistance borne by rollover of the unmanned aerial vehicle body is increased, and the unmanned aerial vehicle body is promoted to recover the balance state, that is, the second self-balancing process. Through the double progressive self-balancing effect, the wind resistance stability of the unmanned aerial vehicle body during flight is greatly improved.

The invention relates to a cable-stayed steel truss cooperative system bridge. The cable-stayed steel truss cooperative system bridge comprises a main span and side spans, wherein a middle pier is arranged on the lower part of the main span; the cable-stayed steel truss cooperative system bridge is characterized in that steel truss cantilever beams are arranged at the side spans thereof; cables and a bridge deck are arranged at the inner ends of the steel truss cantilever beams and on the middle part of the main span. Compared with the prior art, the cable-stayed steel truss cooperative systembridge provided by the invention has the advantages as follows: through combination of the conventional steel truss girder bridge and the conventional cable-stayed bridge, the main span bridge deck supported by stay cables can be arranged under the condition that a towering bridge tower is not required to be arranged, the dynamic performance better than that of the conventional cable-stayed bridge under the same condition can be achieved, and the wind-resisting stability thereof is improved; the cable-stayed steel truss cooperative system bridge is especially suitable for a long-span bridge with an aviation height limit requirement.

The invention provides a winding ring device. The winding ring device comprises a base; a winding ring part is arranged on the base, and provided with a notch part, a roller assembly and a damping assembly are arranged on the end wall of the winding ring part, and the roller assembly comprises a roller part wound with a strip; when the strip released by the roller part passes through the damping assembly and is wound on the bare tire bead, the strip is released; and the damping assembly applies constant resistance to the strip so that the strip is uniformly wound on the bare tire bead with constant tension. The invention also provides a winding device with the winding ring device and a tire bead winding system with the winding device, so that after the strip is wound on the bare tire bead,the strip has basically stable tension, the problems of bubbles and the like caused by unstable tension of the strip are avoided, and the winding quality is improved.

The invention discloses a towel disinfection cabinet for hotels, which comprises a cabinet body (1), a winding sterilization device (2) is arranged inside the cabinet body (1), and an air storage cylinder (2) is arranged above the winding sterilization device (2). 3), the hydraulic cylinder (4) is connected above the air storage tank (3), and the air guide tube (5) is connected below the air storage tank (3); the side of the gas storage tank (3) is connected with a conduit (6), and the upper part of the conduit (6) An ozone generator (7) is connected; the ozone generator (7) is located below the winding sterilization device (2), and an isolation plate (8) is arranged between the ozone generator (7) and the winding sterilization device (2). The invention can not only improve the hygienic condition and prevent the breeding of bacteria, but also can improve the disinfection effect and reassure the users, and has the advantages of good use safety and high energy efficiency.