31results about How to "Increase payload" patented technology

The invention relates to the technical field of braking systems, in particular to an electro-hydrostatic braking system of an unmanned aerial vehicle. The electro-hydrostatic brake system of the unmanned aerial vehicle is only provided with two sets of hydraulic pipelines; wherein one set comprises a first hydraulic power unit, a first pipeline, a first normally open solenoid valve, a second pipeline and a first hydraulic braking module; the other set comprises a second hydraulic power unit, a third pipeline, a second normally open solenoid valve, a fourth pipeline and a second hydraulic brake module; when the first hydraulic power unit breaks down, the flight controller controls the first normally-open electromagnetic valve to be closed and controls the normally-closed electromagnetic valve to be opened, so that oil is supplied to the first hydraulic braking module through the second hydraulic power unit. When the second hydraulic power unit breaks down, the flight controller controls the second normally-open electromagnetic valve to be closed and controls the normally-closed electromagnetic valve to be opened, so that oil is supplied to the second hydraulic braking module through the first hydraulic power unit. The air load weight of the unmanned aerial vehicle is reduced, so that the effective load of the unmanned aerial vehicle is improved.

The invention discloses a hydrogen-powered unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles, the hydrogen-powered unmanned aerial vehicle comprises a fuselage structure and a power system, the fuselage structure comprises a nacelle fuselage provided with a hydrogen storage bottle, a propeller is installed at the front end of the nacelle fuselage, the power system is installed in the nacelle fuselage, a supporting plate is fixed above the nacelle fuselage, and the two sides of the supporting plate are connected with unmanned aerial vehicle wings; the unmanned aerial vehicle wings are connected with ailerons, the unmanned aerial vehicle wings are connected with the unmanned aerial vehicle empennage through connecting rods, the unmanned aerial vehicle empennage is connected with an elevator and a rudder, and an undercarriage is fixed below the nacelle fuselage. The power system adopts a proton exchange membrane hydrogen fuel cell as an energy conversion device, the fuel cell can efficiently convert hydrogen and oxygen into electric energy and only generate water and heat, the efficiency of the conversion process is far higher than that of a traditional internal combustion engine or a battery, and therefore the cruising ability of the unmanned aerial vehicle is improved, and the unmanned aerial vehicle is reasonable in design, long in service life and low in cost. The energy is saved.

The utility model discloses a full-lifting-body perovskite solar unmanned aerial vehicle which comprises a large-chord-length lifting body fuselage and wings on the two sides, ailerons are arranged on the rear edges of the outer sections of the wings to serve as rolling control faces, and an elevator is arranged on the rear edge of the fuselage to serve as a pitching control face. A pair of vertical stabilizers are arranged on the outer side surface of the rear edge of the fuselage to enhance the course stability; perovskite solar cells with flexible substrates are distributed on the surfaces of the fuselage and the wings in an array mode and provide power for the unmanned aerial vehicle. The large-chord-length lifting body fuselage is adopted, the lifting area of the unmanned aerial vehicle is increased, meanwhile, the wingspan length of the unmanned aerial vehicle is reduced, loads borne by wings of the unmanned aerial vehicle are reduced, the weight of the wing structure is reduced, and effective loads are increased; the flexible perovskite solar cells are adopted for array, the damage rate of the cells in the installation process is reduced, and meanwhile due to the advantages of low cost, excellent flexibility, foldability, light weight and mass production of the perovskite solar cells, the service life of the unmanned aerial vehicle is prolonged, the cost is reduced, and mass production of the unmanned aerial vehicle is facilitated.

The utility model provides a lifting device and a lifting system. The lifting device comprises a frame; the at least one pair of rails comprises two rails, the rails extend in the vertical direction, and racks are arranged in the extending direction of the rails; the lift car is arranged in the frame in a liftable manner and is configured to bear the tray; the actuating assembly is arranged on the lift car, and the actuating assembly comprises first actuating parts, second actuating parts and third actuating parts, and the number of the first actuating parts corresponds to the number of the rails; and the driving gear is arranged at the output end of the first actuating part and is configured to be meshed with the rack, so that the lift car ascends or descends.

A container for handling bulk material is described, the container comprising: a substantially rectangular container frame comprising a pair of bottom end rails, a pair of top end rails, a pair of top side rails, a pair of bottom side rails, the rail pairs being connected at upper and lower regions of four corner posts; a floor panel; and a pair of end plates. The container additionally includes a pair of side members extending outwardly from the sides of the frame to define an interior space in the container in which bulk material of a volume greater than the volume of the container frame can be accommodated; and a series of reinforcing ribs disposed on an inner surface of the side member.

The present invention discloses a robot chassis structure, comprising a shell, a first side plate, a second side plate, a first wheel axle and a second wheel axle; a communication interface is arranged on the shell; the first side plate is connected to the first side wall of the shell, and a first gear box and a second gear box are arranged on the first side plate at intervals, the first gear box comprises two meshing gears and a first driving device connected to a main gear, and the second gear box comprises two meshing gears and a second driving device connected to the main gear; the second side plate is connected to the second side wall of the shell, and a third gear box and a fourth gear box are arranged on the second side plate at intervals, the third gear box comprises two meshing gears and a third driving device connected to the main gear, and the fourth gear box comprises two meshing gears and a fourth driving device connected to the main gear; two driven gears arranged side by side are connected to positions near both ends of the first wheel axle, and another two driven gears arranged side by side are connected to positions near both ends of the second wheel axle.

The invention relates to a heat exchanger of a liquid rocket engine, in particular to a wall surface integrated type 3D printing efficient heat exchange barrel with a water-drop-like section flow channel, and aims to solve the problems that an independent external heat exchanger and a pipeline thereof in an existing liquid rocket engine are complex, so that the requirement for compactness of an engine system is difficult to meet; and the complex pipeline increases the flow resistance of the liquid medium and affects the heating efficiency of the heat exchanger and the overall performance of the engine system. According to the wall surface integrated type 3D printing efficient heat exchange barrel with the water-drop-shaped section flow channel, a heat exchanger is integrated into the wall surface of a high-temperature gas pipeline, a pressurizing medium in a storage box is introduced into a second flow channel for heating, and then the pressurizing medium is introduced into the storage box to complete pressurizing; and compared with an independent external heat exchange scheme, the occupied volume and mass are greatly reduced, the thrust-mass ratio of the engine is increased, and the saved weight can be used for increasing the effective load.

The utility model relates to the technical field of aircrafts, in particular to a combined-distributed morphing aircraft which comprises four groups of aircraft monomers and a combined-separated system, each group of single aircraft body consists of a load cabin and wings, and the wings are hinged with the load cabin through a connecting rod mechanism; the combination and separation system comprises a center motor and a load bin center positioning block, the center motor is located among the four sets of load bins, the center motor is embedded in the load bin center positioning block, the load bin center positioning block is connected with the load bins in a buckled mode, and a center limiting block is assembled at the output end of the center motor. The aircraft assembly is formed by combining a plurality of single-wing aircraft single bodies, has the advantages of stable spinning, long hang time, strong load capacity, strong clustering capacity and the like, has a larger detection range and larger aerodynamic lift force, can perform collaborative search and collaborative cargo deployment at low cost, and has a wide application prospect. And the survivability and the overall efficiency of the unmanned aerial vehicle cluster can be effectively improved.

This invention discloses a carbon fiber double-double layup method for a composite material fuselage stringer structure. The stringer is fixed to the inside of the aircraft fuselage cylinder and adopts a carbon fiber double-double layup structure. First, the two angle parameters φ and ψ of the double-double layup are set within the range of 0º-180º and different combinations are made. Then, under a preset bending moment and a preset number of layers, the optimal combination of angle parameters (±φ, ±ψ) is determined by strength calculation. Finally, the double-double layup is repeated in a fixed cycle along the stacking direction according to the determined combination of angle parameters (±φ, ±ψ). This invention can improve the design stiffness and strength of the stringer with the same material usage, or reduce the amount of composite material used with the same stiffness or strength, resulting in high carbon fiber strength utilization and high material utilization rate.

The invention provides a jet circulation empennage control system, an empennage and an aircraft, and relates to the technical field of active flow control, and the jet circulation empennage control system comprises a circulation controller, a steering engine control module, an auxiliary power system, an empennage circulation control unit, an airflow monitoring sensor and an airflow valve. Compressed air is provided by an auxiliary power system of the aircraft, so that the weight of the aircraft can be reduced while yaw control and / or pitching control are / is realized, the number of parts of the whole aircraft is reduced, and the reliability of the system is improved. The aircraft does not need a hydraulic system with a complex structure any more, the weight of the aircraft is reduced, the consumption of fuel oil is reduced, and therefore the economical efficiency of the aircraft is improved. In addition, the take-off weight of the aircraft is reduced, the take-off and landing distance can be shortened, the effective load of the aircraft is improved, and therefore the overall flight performance of the aircraft is improved.

The invention provides a message sending method and device and electronic equipment, and relates to the technical field of communication, and the method comprises the steps: the authorization state information of a virtual queue of first equipment is detected, and the authorization state information is used for indicating the resource state of remaining authorization in the virtual queue; n request messages to be sent to second equipment and triggered according to the authorization state information are obtained, and each request message is used for applying for authorization to the second equipment or requesting for stopping authorization to the second equipment; and combining the N request messages into a target request message, and sending the target request message to the second device, N being an integer greater than or equal to 1. In the embodiment of the invention, the first equipment combines the N request messages to be sent to the second equipment into one message and then sends the message, so that the effective load of each message is improved, and the network utilization rate is improved.

The present application provides a method, device, equipment and computer-readable storage medium for processing game data; the method includes: in the process of game play, obtaining a game data packet triggered by the operation of a game client; obtaining a virtual scene area where a virtual object corresponding to the game client is located; when it is determined that the game data packet meets the data cache condition, adding the game data packet to the data cache queue corresponding to the virtual scene area; when it is determined that the data transmission time has arrived, merging the game data packets in the data cache queue to obtain a merged data packet; determining the target receiving object of the merged data packet, and sending the merged data packet to the target receiving object. Through the present application, the amount of data transmission in the game play can be reduced and the effective load of data transmission can be increased.

A launch system and method for a launch vehicle that can save initial launch fuel includes a support structure, characterized in that: the support structure consists of a horizontal support frame (3) and an ascending section support frame (4), a horizontal track section (5) is installed on the horizontal support frame (3), an inclined track section (6) connected to the horizontal track section (5) is installed on the ascending section support frame (4), a launch acceleration pipe (10) is fixedly installed on the horizontal support frame (3) and the ascending section support frame (4), an electromagnetic catapult (14) is installed on the electromagnetic catapult slide rail (13), a rocket trolley (8) is installed on the horizontal track section (5) and the arc track section (6), and a rocket bracket (9) is provided on the rocket trolley (8). The present invention has a reasonable structure, can obtain sufficient initial velocity before launch ignition, can save launch fuel, can increase the effective payload, and is conducive to saving launch costs.

The utility model relates to a power supply system of a new energy automobile train and the new energy automobile train, and the system comprises a power battery which is used for providing a first DC voltage; the first electric energy converter and the power battery are arranged on one of the tractor and the trailer, and the first electric energy converter is used for conducting electric energy conversion on the first direct-current voltage to obtain second direct-current voltage used for transmission and first alternating current used for driving the motor to operate; the second electric energy converter is arranged on the other one of the tractor and the trailer and is used for converting the second direct current voltage into second alternating current for driving the motor to operate; and the wire harness fixing device is used for fixing the electric energy transmission line between the first electric energy converter and the second electric energy converter. The tractor and the trailer share the same set of power battery, so that the purchase cost and management difficulty of a power supply system are reduced, and the effective load of the vehicle is improved.

The present invention provides a method for preparing a lightweight, low-ablation nozzle expansion section, comprising: mixing high-residue carbon phenolic resin, polyacrylonitrile-based short-cut carbon fiber and solvent in proportion to form a premix; after the premix is ​​desolventized, it is loaded into an expansion section preform curing tooling, and cured by heating and pressurizing a press to form a preform blank; the preform blank is machined to obtain a preform; the composite expansion section preform is woven on the outside of the preform and the large end of the expansion section by a carbon cloth / mesh tire + needle punching molding process, and after it is made, it is impregnated with phenolic resin, and then in the expansion section integral molding tooling, it is cured by heating and pressurizing a press to form a composite expansion section product; the expansion section blank is partially machined in the subsequent nozzle production and assembled with the nozzle shell. The present invention solves the problems of low material strength of the winding expansion section, large ablation amount under high temperature and high pressure working environment, and heavy nozzle weight, and meets the performance requirements of solid rocket engines for high impact-to-mass ratio nozzles.

The present invention relates to the technical field of medical supplies transportation, and in particular to an integrated medical medium-sized material transportation system, comprising a plurality of transceiver stations, a transmission line, a transfer station, a temporary transfer station and a turnover box, wherein the transceiver station, the transfer station and the temporary transfer station are connected by a transmission line, the transceiver station and the transmission line are connected by a vertical lifting device, the transmission line comprises a transverse transmission line, a longitudinal transmission line and a first rotary transfer device, the first rotary transfer device is arranged at the intersection of the transverse transmission line and the longitudinal transmission line, and the turnover box circulates between the transceiver station and the transfer station for the transportation of medical supplies; the present invention provides an integrated medical medium-sized material transportation system in which medical supplies can be automatically, quickly and safely transported to a designated location, the carrying weight reaches 50kg, and the reliability is guaranteed.

The present invention belongs to the technical field of pharmaceutical preparations, and discloses a lutein microcapsule and a preparation method and application thereof. The present invention mixes lutein with edible alcohol to obtain a core material solution; mixes esterified starch, polyvinyl pyrrolidone and water to obtain a wall material solution; adds the core material solution to the wall material solution to obtain a coarse suspension, and then homogenizes it under high pressure to obtain a nanosuspension; and spray-dries the nanosuspension to obtain a lutein microcapsule. The present invention uses esterified starch and polyvinyl pyrrolidone as wall materials, and there is a certain hydrophobic interaction between the esterified starch and polyvinyl pyrrolidone, so that the molecular chain entanglement degree is relatively high, so as to improve the embedding rate of lutein, and the embedding rate can be as high as more than 95%.

The present invention belongs to the technical field of automobile chassis steering mechanism, and proposes a wire-controlled angle drive module steering system. The steering system includes a steering drive mechanism, a steering transmission mechanism, a steering arm, a suspension assembly and a wheel assembly connected in sequence; the steering transmission mechanism includes an angle actuator, a vehicle body connection flange, an RV reducer, an output flange, a nozzle and a wheel angle sensor. The wire-controlled angle drive module steering system can realize independent steering, improve vehicle dynamic response, and realize a variety of flexible driving modes; the RV reducer is used to realize steering torque increase and vertical load bearing, which can increase the chassis payload; as an independent module development, its design and development can be decoupled from the vehicle body, and a unified interface can be realized, plug and play, and quick disassembly and assembly with the vehicle body can be realized; feedback control is adopted, and the online optimization algorithm is used to suppress instantaneous and cumulative errors and maintain a high control accuracy.

The present invention relates to the field of cable technology, and specifically to an astronaut extravehicular cable, comprising an outer sheath and a mica wrapping tape layer and an electromagnetic shielding layer arranged on the inner side of the outer sheath, wherein the electromagnetic shielding layer covers and fixes a plurality of cable cores, and the cable cores are composed of a conductor and an inner sheath; the electromagnetic shielding layer comprises a matrix resin, graphene oxide / carbon nanocomposite fibers and 3D‑MXene@M, wherein M is a transition metal element. The electromagnetic shielding layer in the present invention has good mechanical properties and excellent electromagnetic shielding effectiveness. The astronaut extravehicular cable prepared by the electromagnetic shielding layer can effectively resist electromagnetic radiation from outer space, maintain stable transmission of signals in the cable, and has broad application prospects in outer space exploration.

The application discloses a fairing and a preparation method thereof. First, a mold is prepared, and then an intermediate layer is prepared as a honeycomb-like structure, which is composed of a plurality of small blocks connected to form the honeycomb-like structure; then, according to different regions of the fairing, an outer skin is laid, metal parts are pre-buried, and a composite core material is laid; the outer skin is reversely wrapped, and at the same time, an inner skin is laid on the composite core material and the metal parts; after covering the mold and heating and curing, the product is cooled and demolded. The preparation method is integrally formed, avoids the limitation of the product being constrained by the size of the tank body, is more easy to prepare large special-shaped product, reduces the weight and increases the effective load, and shortens the manufacturing cycle.

The invention discloses a Beidou short message-based power distribution terminal communication optimization method and system, and the method is applied to a Beidou short message-based power distribution automation system, a Beidou communication module obtains a response message of a power distribution automation terminal, sets the highest priority for a remote control message, reports the remote control message in real time, shields a frequent displacement message for a remote signaling message, and carries out the real-time monitoring of the remote signaling message. Key information is extracted from the remaining remote signaling messages, protocol conversion is carried out according to a private protocol, then the messages are reported, and the telemetering messages are reported through total calling and important remote signaling deflection triggering; the data is compressed and numbered before being reported, so that channel blockage and message loss are avoided; and the Beidou short message communication manager obtains a remote control instruction of the power distribution automation master station, directly responds to a corresponding message to the power distribution automation master station if the remote control instruction is a remote control selection instruction or a remote control revocation instruction, directly issues the corresponding message if the remote control instruction is a remote control execution instruction, and starts a retransmission mechanism if the remote control execution confirmation message is overtime. According to the invention, the integrity and reliability of data transmission are systematically improved.

This invention provides a reinforcement and transmission device for the attachment support arm of a tower crane in a double-sided coal bunker boiler unit. The device includes a first tie rod, a second tie rod, a third tie rod, a first transmission beam, and a second transmission beam at the first level, and a first temporary reinforcement transmission beam, a second temporary reinforcement transmission beam, a third temporary reinforcement transmission beam, and a fourth temporary reinforcement transmission beam at the second level. This invention effectively transmits the load of the tower crane exceeding its independent height to the attachment points of the boiler steel structure through the device, ensuring that the attachment points of the boiler steel structure do not experience irreversible deformation or tearing damage. Simultaneously, it ensures that the overall column grid of the boiler does not experience irreversible displacement before an effective overall column grid is formed.

The invention relates to the technical field of aerospace, in particular to a recoverable rocket and an interstage separation guide pneumatic push rod thereof, which comprises a base, an outer cylinder, an inner cylinder, a guide bolt and a thrust bracket, the base is provided with an inflation cavity, and the inflation end of the base is provided with an inflation inlet. The outer cylinder is provided with a separation cavity, the separation end of the outer cylinder is provided with an assembly port, the butt joint end of the outer cylinder is in butt joint with the butt joint end of the base, and the separation cavity is communicated with the to-be-inflated cavity; the inner cylinder is located in the separation cavity, the outer side wall of the inner cylinder is attached to the inner side wall of the separation cavity, and the inner cylinder can slide in the separation cavity; one end of the guide bolt is inserted into the separation cavity through the assembly opening and is inserted into the inner cylinder; the outer side wall of the outer cylinder is provided with an exhaust pipe communicated with the separation cavity, the exhaust pipe is located at the position close to the separation end of the outer cylinder, and after the inner cylinder slides and is attached to the separation end of the outer cylinder, the exhaust pipe is close to the inner cylinder and is communicated with the separation cavity; and the other end of the guide bolt is connected with the thrust bracket. According to the method, the safety and reuse of the recoverable sub-stage can be guaranteed, and the effective load of the rocket is improved.

The present application relates to the field of aircraft flight mechanics and flight control, and particularly relates to a distributed overdrive tilting wing aircraft control strategy analysis method, comprising the following steps: step one: determining a rudder distribution scheme; the rudder distribution scheme is determined based on a minimum control energy fusion method; the control of multiple aerodynamic rudders is always linked without considering the flight conditions of the aircraft; in order to fully exert the efficiency of the linkage of multiple aerodynamic rudders, the weighted minimum control energy principle is used to distribute the control input, so as to use the rudders with high authority and high efficiency as much as possible under the same control input, and as little as possible to use the rudders with low authority and low efficiency, and finally make all the rudder angles as small as possible; step two: determining a flap aileron bias scheme; step three: calculating the lift propeller speed.

The present application relates to a kind of deep-sea power push rod, it relates to deep-sea equipment technical field, comprising: cylinder unit, stem;The stem and cylinder unit are slidably connected using dynamic sealing mode;The cylinder unit includes: the main cylinder of two ends opening, the guide module sealedly connected with the front end of main cylinder, the switch control module sealedly connected with the rear end of main cylinder;The stem cleaning structure is provided at the end of the guide module away from main cylinder;Along the axial direction of guide module, the stem cleaning structure relative two sides are communicated with external deep-sea environment;The switch control module is used to control the communication between the inside of cylinder unit and external deep-sea environment, to control the entry of external seawater to push the stem to extend out.The deep-sea power push rod of the present application is simple and reliable in structure, and can realize reliable power output in deep-sea environment only by relying on the pressure difference between inside and outside.

A polymer formed from a first monomer and at least one second monomer different from the first monomer. The polymer is conformationally formed to dissolve a metal salt so as to form a solid electrolyte capable of conducting lithium and other metals, the electrolyte being capable of forming a thin film, layer or otherwise configured to conduct lithium within one or more cells of the battery. The polymers are suitable for use in various components of solid state batteries in various environmental conditions. And a decomposition reaction of the polymer.

This invention discloses a rigid-flexible integrated wall-climbing robot, comprising: a rigid joint, which includes one axial rotational joint and two radial rotational joints, the two radial rotational joints being located on both sides of the axial rotational joint; two soft modules, each connected to one of the two radial rotational joints; two adsorption modules, each connected to one of the two soft modules; and multiple drive modules, located within the axial rotational joint, the two radial rotational joints, and the two adsorption modules. This rigid-flexible integrated wall-climbing robot enables positional transitions between different walls and between wall-mounted pipes, allows for rapid movement on a horizontal plane via U-shaped bends, improving work efficiency. It also enables path avoidance when encountering obstacles and increases the effective payload.

The invention provides a maintenance-free rail transit axle box bearing. The bearing comprises an inner ring, an outer ring, a roller, a retainer, an outer flange and an oil seal. The invention relates to an axle box bearing of a high-speed train, a metro train and a common passenger train. The bearing has the advantages of being small in number of parts, good in assembly performance, compact in structure, large in load, low in noise, low in torque, ultralow in temperature rise, ultralow in friction torque, ultralow in cost, integrated, super-energy-saving, always free of pre-tightening (adjustment) zero clearance, ultra-long in mileage, free of maintenance, ultra-long in service life, high in strength, rigidity, reliability and stability and the like. The effective load of the axle box bearing is obviously improved, the ineffective load is obviously reduced by more than 60%, the efficiency of a transmission system is obviously improved, the operation cost of a high-speed rail is obviously reduced, the energy consumption is obviously reduced, and energy conservation and environmental protection are realized.

The utility model relates to the technical field of glass lifting, and provides an ultra-light lifting appliance for ultra-large curtain wall glass, which comprises a lifting frame for lifting glass, the lifting frame comprises a main frame, a suction cup and a prestressed rope, the main frame is cross-shaped and comprises a cross rod and a vertical rod which are connected, two connecting rods are vertically arranged on the cross rod and are symmetrical about the vertical rod, and the suction cup is arranged on the main frame. Suckers are arranged on one sides of the ends of the transverse rods, the vertical rods and the connecting rods, suckers are also arranged at the intersections of the transverse rods and the vertical rods, and the ends of the transverse rods, the vertical rods and the connecting rods are connected through prestressed ropes. According to the utility model, the bearing capacity of the lifting appliance is greatly improved, and the lifting appliance is not easy to deform and suitable for lifting large glass; the device is light and practical, the effective hoisting load is improved, and the hoisting cost is reduced.