3547results about How to "Increase loading capacity" patented technology

The invention provides a long-span over loading cable crane and an installation method thereof which relates to a cable crane used in bridge construction and consists of a guy rope tower 1, a cable tower 2, a main cable and a hoisting traction system 3, an anchoring system 4, an electromechanical system 5 and a wind cable system 6. The tower of the cable crane consists of the guy rope tower 1 and the cable tower 2 which is hinged on the top of the guy rope tower 1 and fixedly connected with the bottom of the guy rope tower 1. The invention adopts the techniques of the parallel bearing of a plurality of main cables, the wind cables connected in series, the joint construction of the cable towel and the guy rope tower, etc., thereby greatly improving the loading capability of the long-span cable crane and lowering the manufacturing cost as much as possible. The invention can reduce the influence of the unbalanced horizontal force on the top of the cable tower 2 on the guy rope tower 1 and greatly save the construction cost of the guy rope tower 1. The loading cable crane has strong load-carrying capability, wide loading range and high economic performance.

The invention relates to high strength easily forming atmospheric corrosion resistant steel. The invention provides the high strength easily forming atmospheric corrosion resistant steel aiming at the problems in existing steel that the weatherability is bad and the service life is lowered under the condition that the thickness is thinned. The high strength easily forming atmospheric corrosion resistant steel is composed of components of following weight percent: C: 0.04-0.09%, Si: 0.10-0.50%, Mn: 1.20-1.70%, P: <=0.020%, S: < =0.010%, Cu: 0.20-0.60%, Cr: 0.40-0.80%, Ni: 0.20-0.50% and Nb: 0.03-0.07%, and also comprises one or a plurality of Mo: <=0.20%, Ti: <=0.03% and Als: <=0.035%, and allowance is Fe and unavoidable impurity. The yield strength of the steel of the invention is more than or equal to 550MPa, the tensile strength is more than or equal to 650MPa, the percentage elongation is more than or equal to 18%, the corrosion resistance is equivalent to SPA-H steel which is used for previous containers, and the steel has excellent welding performance, cold roll forming performance and low temperature impact toughness, which is beneficial for extending and applying.

The invention provides a high-precision and large-load control system and method of a three-axis inertially stabilized platform for airborne remote sensing. The system comprises a DSP (digital signal processing) control unit, a PWM (pulse-width modulation) power drive unit, an interface circuit, a signal acquisition unit, an inertial device, an encoder and a direct current (DC) torque motor. The method comprises the following steps: acquiring data such as the attitude angle and angular speed of frameworks relative to an inertial space, coil current and relative corners among the frameworks through the signal acquisition unit; transferring the data into an internal register of the DSP control unit through the interface circuit so that the data is read by the DSP control unit; taking the data as signals to be input into the DSP control unit, and generating PWM controlled quantity by adopting a three-loop (a current loop, a speed loop and a position loop) compound control algorithm; and transferring PWM signals into an energy conversion circuit of an H-bridge DC motor through the power drive unit so as to drive the DC torque motor to change with reference instructions, and finally realizing active control of the inertially stabilized platform. The high-precision and large-load control system and method provided by the invention have the advantages that control precision and loading capability of the system are improved, the control algorithm is completed, and diversity and intellectualization of a platform operating mode are improved.

A vehicle dispatch system enables optimal dispatch of a plurality of vehicles with information of available vehicles from transportation company terminals and information of orders from client terminals under restrictive conditions such as vehicle sizes, minimum loading rates, and a maximum number of assignment locations, based on transportation regions preset in consideration of transportation times, past order quantities, and order congestion degrees, such that a relevant vehicle can perform delivery of freight within a predetermined transportation region to minimize a total transportation cost for each transportation region. The system minimizes a delivery distance of each vehicle, increases a loading volume of the vehicle to reduce an empty rate of vehicles, and minimizes the number of dispatched vehicles, thereby reducing the total transportation cost.

The combined treatment process of high concentration ammonia nitrogen waste water belongs to the field of waste water treating technology. The combined treatment process of high concentration ammonia nitrogen waste water features the combination of blow-off method, MAP method and nitrosation-anaerobic ammoxidation biological method. The treating process of the present invention includes the steps of: adding lime into the waste water in a regulating tank to reach pH of 11-12; blow-off and aerating in a blow-off tank, with the blow-off tail gas entering to an absorbing tank and the blow-off water entering to a MAP reaction tank; treating the blow-off effluent in the MAP reaction tank with thrown disodium hydrogen phosphate and magnesia to produce magnesium ammonium phosphate precipitate exhausted; and the final nitrosation-anaerobic ammoxidation biological treatment. The process has low power consumption and other advantages.

The invention comprises a compressed air energy storing system for cold and heat power supply. The system comprises a compressor, an air storage tank, a turbine expander, a gas engine and a refrigerating machine. During low power consumption, surplus power drives the compressor to store the air into the air storage tank in a high pressure manner, and the intercooler of the compressor recovers the compression heat; during high power consumption, the high-pressure air of the air storage tank is preheated through a heat regenerator to enter the turbine expander so as to work and drive a generator to generate power, the exhaust gas of the outlet of the turbine expander enters the gas engine to mix with the natural gas and burn so as to drive the generator to generate power secondarily, the heat of the high-temperature flue gas exhausted by the gas engine is exchanged through the heat regenerator, and the flue gas enters the refrigerating machine with the engine cylinder sleeve circulating water and water heated by the intercooler so as to drive the refrigerating machine to supply heat or cold. According to the system, distribution type energy and intermittent type energy are combined, the renewable energy is utilized fully, the system waste heat is utilized effectively, and the system has the advantages of high energy converting efficiency and large energy storage capacity.

The invention belongs to the technical field of agricultural product processing, and particularly relates to a rotary disk type air jet impact drying machine. The rotary disk type air jet impact drying machine comprises an air flow circulation system, a rotary disk system, a weighing system and an automatic control system. In the drying process, hot air flow with certain pressure is jetted into a drying chamber (23) through an adjustable strip-shaped air flow jet (38), multiple layers of round material racks (6) evenly distributed in the drying chamber (23) in the axial direction of a rotary material shaft (8) carry a material disk (7) to rotate in the horizontal plane, the rotary disk system can conduct drying in a rotation speed changing and rotation mode changing mode and the weighing system can indicate the drying condition of materials. The rotary disk type air jet impact drying machine solves the problems that an existing air jet impact drying machine is limited in carrying capacity, hard to meet the drying requirements of batch agricultural materials and high in manufacturing cost, and air flow adjustment is inconvenient; meanwhile, the rotary disk type air jet impact drying machine can realize the batch-type drying process of drying-tempering-drying-tempering, improve the drying efficiency, and lower the running energy consumption of the rotary disk system, and is high in automation degree and good in material adaptability.

The invention discloses a wide-input voltage high-power supply rejection ratio reference voltage source. The reference voltage source comprises a self-bias circuit (1), a primary presetting circuit (2), a secondary presetting circuit (3), a bandgap reference core circuit (4) and a signal feedback circuit (5) which are sequentially connected. By using the self-bias circuit in a self-bias current mirror structure, the circuit can be started independently without using additional start circuits; by directly using the output of the secondary presetting circuit as the output of the reference voltage and simultaneously supplying power to the bandgap reference core circuit, the connection mode can improve the loading capacity of the reference voltage; by using the operational amplifier-free feedback loop for regulation, one clamping operational amplifier is removed from the traditional reference voltage source circuit, thereby saving the area and reducing the quiescent power dissipation; andcompared with the traditional bandgap reference voltage source circuit, the power supply rejection ratio of the output reference voltage, especially the performance under a high-frequency condition, is greatly improved.

The invention provides a benzocrown ether graft polymer with a lithium isotopic separation effect and a preparation method thereof. As for the polymer, hydroxyl-contained polyvinyl alcohol or polyethylene-vinyl alcohol is adopted to serve as a main chain; benzocrown ether is adopted to serve as a side hung group; and the main chain and the side hung group are connected together through chemical bonds so as to form the benzocrown ether graft polymer. The preparation method comprises the following steps: dissolving the active hydroxyl-contained polyvinyl alcohol or the polyethylene-vinyl alcohol and the benzocrown ether with an active carboxyl functional group or an aldehyde group in a solvent; performing esterification or aldolization under the action of a catalyst at a certain temperature; completing the chemical grafting of the benzocrown ether with the polyvinyl alcohol or the polyethylene-vinyl alcohol; and finally adding a precipitating agent so as to obtain the graft polymer through precipitation. The graft polymer provided by the invention, which contains the benzocrown ether group, has a good lithium isotopic separation effect. Moreover, through adjusting the size of the crown ether ring, the graft polymer can be used for recognition and separation of heavy metal ions, and has an extensive application prospect.

The invention provides a hydrogenation catalyst and a preparation method thereof. The preparation method uses metal active components of group VIB and VIII for step load, wherein metal of group VIB is molybdenum, metal of group VIII is cobalt or nickel, and a carrier is porous oxide. Load of group VIB metal uses a corresponding soluble salt as a raw material, inorganic acid is used as an acidifying agent, and a long-chain alkyl quaternary ammonium cation is used as a precipitating agent; and Mo-based single-component loaded catalyst is prepared by firstly synthesizing an organic-inorganic hybrid material suspension, performing aqueous phase diffusion and tunnel deposition, filtering, washing, drying, and roasting. Load of group VIII metal uses a corresponding soluble salt as a raw material, and the metal is loaded onto the carried through a normal-temperature isopyknic dipping technology. The method can effectively improve load capacity of the active components and dispersiveness of the active components in the tunnels; and the prepared hydrotreating catalysts is excellent in hydrodesulfurization activity.

The present invention relates to high-pressure rotary spraying and core inserting process to form pedestal pipe. The pedestal pile consists of core pile, column and pile depestal. The cylindrical or turned frustum-shaped core pile may be prefabricated reinforced concrete pile, in-situ deposited pile or other pile in different cross section shapes. The pile pedestal below the core pile has diameter greater than that of the core pile. The column has circular, semi-circular of fan-shaped cross section. There may be several auxiliary core piles around the main solid or hollow core pile and several rings in relatively great diameter around the column. The present invention has reasonable design, compact structure, high friction resistance, and wide application in building engineering, bridge engineering, civil engineering, water engineering, etc.

The invention relates to a method for synthesizing high-dispersibility high-specific surface area large-pore volume SiO2 hollow spheres. The method comprises the following steps of: synthesizing high-dispensability uniform-pore size solid core/mesoporous shell SiO2 nanospheres through a sol-gel method and a surfactant directing method; and removing solid cores of the SiO2 nanospheres and keeping a complete mesoporous shell layer through a simple hydrothermal post-treatment method in alkaline solution so as to obtain the mesoporous SiO2 hollow spheres. The prepared mesoporous SiO2 hollow spheres have high dispersibility, high specific surface area, large pore volume, uniform pore size distribution and adjustable cavities. The results prove that: the mesoporous SiO2 hollow spheres subjectedto alkaline post-treatment have the specific surface area of 320m<2>/g and the pore volume of 0.66cm<3>/g, and has wide application prospect in the fields of medicament delivery, catalysis, microreactors, adsorption, separation, chromatogram and the like.

The invention relates to a special lifting tool for a steel containment vessel of a nuclear power station and a lifting method. A special lifting tool for the steel containment vessel of the nuclear power station comprises a sling transition beam, at least eight riggings, a lifting beam and at least eight adjustable devices, wherein the sling transition beam is fixedly connected with the lifting beam through the rigging; and the adjustable devices are symmetrically distributed at the top end of the lifting beam. In the lifting method of the steel containment vessel of the nuclear power station, a special tool is applied as transition connection between the lifting tool of a crane and the components of the steel containment vessel of nuclear power station; before lifting, load test is carried out on the sling transition beam, riggings, the lifting beam, the adjustable devices and transition connecting tools; during lifting, the length of each adjustable device is adjusted according to the detected stress data thereof by using a stress detection technology until each adjustable device reaches the stress balance requirement. The special lifting tool and the lifting method of the invention can realize stress balance of each component of the steel containment vessel during lifting, prevent component deformation and guarantee safety.

The invention relates to a four-rotor aircraft, relates to the fields of aircrafts, and solves a problem that existing four-rotor aircrafts have weak yawing capability. The four-rotor aircraft comprises an aircraft body, an avionics system, a landing gear, a work loading module, four supporting arms and driving units, wherein the supporting arms are connected with the avionics system, the supporting arms expand along a center shaft of the aircraft body towards all around with equal angles, and the driving units are disposed at the front ends of the supporting arms. The included angles between the center shaft of the aircraft body and the supporting arms are the same, and are less than 90 degrees and greater than 0 degree. The projections of the supporting arms on the oxy plane are two axisymmetric and intersectant straight lines. The projections of the driving units on the xoy plane are respectively in the four quadrants or are respectively on the x positive axis, the y positive axis, the x negative axis and the y negative axis. A projection, of the spin axis of the driving units, on the yoz plane or the xoz plane respectively has an included angle theta with the z axis, wherein the theta is not more than 65 degrees and not less than -65 degrees, and 0 is not included. The projection, of a connecting line between the spin center and the origin of the aircraft body coordinate system, on the xoy plane is perpendicular to the projection of the spin axis of the driving units on the xoy plane. The yawing moment of the four-rotor aircraft is increased by an order of magnitude, and the yawing capability of the four-rotor aircraft is greatly enhanced.

The invention relates to a biped robot lower limb mechanism, in particular to a biped robot lower limb mechanism driven hydraulically. The problems that an existing electrically-driven robot is small in loading capacity, low in specific power and poor in anti-interference performance are solved. The biped robot lower limb mechanism comprises a body, an oil distributor, a left leg and a right leg, the oil distributor is arranged on the upper surface of the body, the left leg and the right leg are arranged on the lower surface of the body side by side, and are of the same structure, and the left leg comprises a foot, a shank, a thigh, a hip joint forward swing hydraulic cylinder servo unit, a hip joint twisting hydraulic cylinder servo unit, a hip joint, a knee joint forward swing hydraulic cylinder servo unit, an ankle joint, two ankle joint hydraulic cylinder servo units, a hip joint side swing hydraulic cylinder servo unit and a body upper end swing connecting piece. The biped robot lower limb mechanism belongs to the field of robots.

The invention relates to a novel ordering membrane electrode and a preparation method and application thereof. The membrane electrode consists of a composite electrolyte membrane and a catalyst layer. The composite electrolyte membrane is a proton exchange membrane modified by Pd metal or Pd-Cu alloy or Pd-Ag alloy or Pd-Ni alloy or Pd-Ag-Ni alloy, the catalyst layer is an ordering catalyst layer which comprises a composite electrolyte membrane metal layer consists of conducting polymer nanowires distributed on the surface in an ordering array mode and Nafion self-assembled Pt-PDDA catalyst adhered to the surfaces of the conducting polymer nanowires. The novel ordering membrane electrode has the advantages of being low in Pt bearing capacity, high in utilization rate and the like and can effectively reduce the cost of a fuel-cell catalyst. In addition, the novel ordering membrane electrode can enhance mass transfer of fuel in the catalyst layer while effectively reducing liquid fuel penetration and accordingly improves the fuel utilization rate.

The invention discloses a full-automatic float-garbage clearing and packaging vessel. A vessel body is of a double-head single-hull type. The vessel comprises the vessel body, a collecting device, a smashing device, a screw conveying device, a compressing and bundling device and a storing and discharging device. The collecting device, the smashing device, the screw conveying device, the compressing and bundling device and the storing and discharging device are sequentially mounted from a vessel bow to a vessel stern in the vessel body. The collecting device is arranged between two heads of the vessel bow. The vessel is adaptable to cleaning riverway rubbish and aquatic plants and capable of compressing collected and smashed rubbish and aquatic plants, thus improving load of the vessel, shortening discharging time of round trip, facilitating discharging, increasing production efficiency and saving production cost.

The invention provides a flexible three-dimensional nano bio electrode and a preparation method thereof. The bioelectrode includes a flexible electrode substrate material, a carrier material adhered to the surface of the substrate material and enzyme supported on the carrier material. The carrier material is compounded by graphene with three-dimensional macroporous structure and mesoporous carbon bonded on the graphene surface; the mesoporous carbon is distributed in the surface of tunnel structure of the graphene; and the enzyme is glucose oxidase. The bioelectrode provided by the invention has the following advantages: the carrier with conductivity is beneficial to the transfer of electrons generated by catalysis of glucose oxidase to the electrode through the carrier material; the carrier material with larger specific surface area is conducive to the increase of immobilization amount of glucose oxidase on the carrier material in unit volume; and the carrier material with three-dimensional pore structure is conducive to the spread of solution, and can ensure that all the glucose oxidase in the carrier material conducts catalytic reaction. The invention can greatly promote the development of flexible green electronic products and implantable medical devices.

The invention provides a device system for expelling birds, and catching and killing acridid and insect pests in an airport by using a toy helicopter. The device system comprises a zero point energy helicopter which is formed by connecting toy remote-control helicopter with a zero point energy generator. The zero point energy helicopter is respectively connected with a sound-light generator, an inflatable bird expelling device, a high-voltage generator, a high-voltage electric network, a net-barrel high-voltage electric network, an ultraviolet light emitting diode (LED) lamp, an electric shock acridid catching and killing net and an ultramicro spraying device to form a universal zero point energy tyre-type air craft which has the function of expelling bird by airplane, expelling bird by inflation bird, killing sect by electric network, killing acridid by airplane and ultramicro spraying; the zero point energy generator is connected on an electric shaft of a helicopter paddle through rotary magnetic steel; a fixed coil panel is connected below the zero point energy generator so as to regenerate and recharge; two small batteries can make the helicopter continuously fly, thereby saving energy and protecting the environment. The device system is used for expelling birds instead of hurting the birds in the airport, flying in farm lands to catch and kill insects, catching and killing edible acridid in a large area and killing insects by spraying ultramicro pesticides to fruit trees in the upper air, and is low in cost and convenient to manufacture, popularize and use.

The invention relates to an aircraft (1), preferably an unmanned aircraft (UAV), drone, or unmanned aerial system (UAS), comprising a rigid wing (2), which enables aerodynamic horizontal flight, and at least four rotors (4, 4'), which are driven by means of controllable electric motors (5) and which can be pivoted between a vertical starting position and a horizontal flight position by means of a pivoting mechanism (7), wherein all electric motors (5) and rotors (4) are arranged on the wing (2).

The invention relates to a preparation method for a glass fibre reinforced resin composite plate spring. The method comprises the following steps of: respectively soaking a glass fibre cloth and a glass fibre filament in epoxy resin, laying a layer on the upper and lower surfaces of a core model by using the glass fibre cloth; in the case of existing a preset value of the appropriate tensile force, winding the glass fibre filament on the core module, wherein the applied tensile force to the glass fibre filament gradually decreases along with the number of winding layers in the winding process; laying a layer of glass fibre cloth after the completion of winding; performing die assembly by the conventional manner to obtain an incompleted plate spring in embryo, and solidifying to obtain the glass fibre reinforced resin composite plate spring. The plate spring product prepared by the method provided by the invention has more excellent strength, is stronger in fatigue resistance than steel materials and is above 60% lighter in weight than the steel plate spring.