345results about How to "Solve the weight problem" patented technology

The invention discloses a turboramjet combined engine based on knocking combustion. Along the air flow direction, an adjustable central conical body is positioned at the forefront end of the combined engine, and surrounds into an adjustable air intake channel with a shell; the downstream of the adjustable central conical body is connected with an air intake device of a preposed turbine combined pulsation knocking engine; the upstream of an air pressing machine of the preposed turbine combined pulsation knocking engine is provided with an adjustable inlet guiding blade; an engine shell of the preposed turbine combined pulsation knocking engine surrounds into an annular air duct with the shell; and an adjustable plate is positioned at an expanding pressure buffer chamber between the air duct and the preposed turbine combined pulsation knocking engine. By the turboramjet combined engine based on knocking combustion provided by the invention, the problems of long size, great weight, complex structure, many components, and the like of a complete machine are solved, and simultaneously the propulsive performance of the turboramjet combined engine based on the knocking combustion is improved.

This invention relates to rigidity and charging extension plane frame supportive structure, which solves the current solar sailboard and plane antenna plane frame supportive structure mechanic extension and complex existence structure and bad reliability and low efficiency of folding. The frame rack is loaded with frame rack longitude baseboard, wherein, the baseboard and frame rack is connected through band; the baseboard upper end has sticking layer; the wire left end is fixed on frame rack supportive tube and is connected to supportive tube with electricity layer; the charging channel left end is fixed inside supportive tube with control valve.

The invention discloses a six-degree-of-freedom parallel micro platform which comprises a fixed platform body and a movable platform body. The lower surface of the movable platform body is evenly provided with three sets of fixing bearing bases, and each fixing bearing base is connected with the fixed platform body downwards in a transmission mode through two branch chains, namely, the three sets of the bearing bases and six branch chains are arranged between the fixed platform body and the movable platform body. According to the six-degree-of-freedom parallel micro platform, the fixed platform body is fixed to the installation end face at the tail end of a macro robot through a micro platform installation hole, a tail end actuator is fixed to the movable platform body through a gripper installation hole in the movable platform body, the size is small, the weight is low, rigidity and precision are high, six-degree-of-freedom precise trimming of space postures of a workpiece in the assembly process is achieved, and the aim of precise assembly is achieved.

A rotatable wedge-shaped sunshade capable of being unfolded segmentally comprises a cylinder part sunshade wall (1), an oblique angle part sunshade wall (2), a base (3), cylinder part linear hinge components (4), oblique angle part linear hinge components (5), a fixed chassis (6), a rotary chassis (7) and a driving component. The cylinder part linear hinge components (4) serve as a support frame of the cylinder part sunshade wall (1); the oblique angle part linear hinge components (5) serve as a support frame of the oblique angle part sunshade wall (2), and the extension of the corresponding sunshade walls are driven by extension of the corresponding support frames. The two ends of the cylinder part linear hinge components (4) are connected with the base (3) and the fixed chassis (6) respectively, and the two ends of the oblique angle part linear hinge components (5) are connected with the rotary chassis (7) and the oblique angle part sunshade wall (2) respectively. The rotary chassis (7) is mounted on the fixed chassis (6) by the driving component, and driven by the driving component to rotate relative to the fixed chassis (6).

The invention discloses a variable speed constant frequency wind power generation system integrated with an energy storing device and control methods. A variable pitch draught fan is connected with a variable pump through a coupler, the variable pump, a one-way valve A, a two-position two-way electromagnetic directional valve B, a variable motor and an oil filter are sequentially connected through hydraulic pipelines to form a loop-locked main hydraulic speed regulation loop, the variable motor is connected with a power generator or an electromotor through a clutch A, the energy storing device comprises a pump or a motor and a high-pressure gas storage tank, and the power generator or the electromotor is connected with the pump or the motor through a clutch B. A wind generating set and the energy storing device are integrated, the displacement of the variable pump and the displacement of the variable motor are independently regulated, maximum power tracing of a wind turbine can be achieved, it can be guaranteed that the output rotating speed of the variable motor is constant, the output frequency of the power generator is stable, different control methods are adopted for different types of wind power, the influences of the time and climate change on wind power generation are effectively avoided, the wind energy utilization rate is greatly increased, and wind electricity quality is improved.

The invention relates to a smarter-vision-based high-performance ore granularity visual inspection system. Detection steps are as follows: a high-speed and high-definition camera is installed above anore conveyor belt; an ordinary image and an image with structured light of broken ore on the ore conveyor belt can be taken by the camera; information of the ordinary image and the image with the structured light is transmitted to a system host for detection, ore particles are cut, ore granularity information is extracted for statistics and analysis, and the ore granularity information is outputted to a main controller of an ore crusher; the main controller adjusts various control parameters of the ore crusher according to the requirements of the production process, and the ore crusher operates according to new control parameters; after the ore crusher operates according to the new control parameters, the broken ore again appears in the image of the camera, and the closed-loop control ofthe ore crusher is realized. The smarter-vision-based high-performance ore granularity visual inspection system can effectively solve the problems that an ordinary camera can only collect two-dimensional image information, and an ore particle size analyzer cannot distinguish an damaged or water-stained empty conveyor belt from a conveyor belt scattered with the ore, so that the ore granularity information detection and analysis are inaccurate.

The invention provides a flexible solar wing used for satellite power supply and a two-degree-of-freedom storage device applied to the flexible solar wing. The flexible solar wing comprises elastic supporting rods and flexible wings, wherein the elastic supporting rods are installed on a satellite and stretch outwards; and the flexible wings are connected with the satellite and the ends, away from the satellite, of the elastic supporting rods. Solar batteries arranged in an arrayed mode are arranged on the front side of the flexible wings. The flexible wings are used for carrying the solar batteries, so that the flexible solar wing is folded conveniently, the occupied space is small, the plane after the flexible solar wing is unfolded is large, and the high-power supply requirement of the whole satellite can be well met by tracking the sun in a two-degree-of-freedom mode; and in addition, the weight of the flexible wings is low, and the problem that a solar battery assembly made of metal plates is large in occupied space and high in weight is solved.

The invention relates to a preparation method of a Hypsizigus marmoreus cultivation material. The Hypsizigus marmoreus cultivation material is prepared by the following components by the weight percent: 32-45 of wood flour, 25-40 of mill offals, 12-19 of corn cob, 3.6-6.7 of corn meal, 3.5-4 of rice bran meal, 0.5-1 of wheat straw meal, 1.7-2 of white sugar, 0.5-1 of lime, 0.1-0.3 of gypsum, 0.1-0.3 of superphosphoric calcium carbonate, 0.1-0.3 of brown sugar, and 0.5-0.8 of magnesium sulfate. The wood flour, the mill offals, the corn cob, the corn meal, the rice bran meal, the wheat straw meal and the white sugar are combined together according to the weight percent to be put into a crushing machine to be crushed into mixture with 120 meshes of particles, the mixture is taken out, the lime, the gypsum, the superphosphoric calcium carbonate, the brown sugar and the magnesium sulfate are added to the mixture in proportion, all the new mixture is poured into a stirring machine to be stirred for 65 minutes and then taken out, water is added to the mixture according to the proportion of 1:1.3-1:1.5, and the mixture is blended and then put in a fermenting tank to be piled in stacks, covered with plastic cloth, compacted and fermented for 68 hours to obtain the qualified cultivation material.

The invention relates to a harmonic drive type high-accuracy position control system and method. For the nonlinear dead zone characteristic caused by harmonic drive flexibility, the system and method of the invention adopt a control structure in which a current loop sleeves a dual velocity loop and then sleeves a position loop, so the dead zone characteristic in system tracking control can be restrained, and the tracking control accuracy can be improved. The control method mainly utilizes the advantage that multiple closed-loops exist in the output feedback, the current loop is adopted to increase the stationarity of the output force moment, the position measured by a rotary encoder is utilized to decouple the rotating speed of the motor rotor to form a speed closed-loop of the motor end, the nonlinear characteristics, such as the flexibility, the friction, etc., of a harmonic reducer are isolated in advance, and the motor anti-interference capability can be enhanced. Then, accurate control is performed on the load by combining with the outer speed loop formed by a speed measuring device and a photoelectric encoder and the position loop at the load end. Compared with the existing harmonic drive type high-accuracy control technologies, advantages of high accuracy, simple control structure and convenient debugging can be realized.

The invention provides an omnidirectional atmospheric data measurement spherical probe and provides an atmospheric data measurement instrument that is simple in structure, large in acquisition angle range, high in reliability, small in size and light in weight. According to the technical scheme of the invention, for different airflow angles, pressure measuring points on a spherical body are partitioned, and the partition areas of the pressure measuring points are positioned on the front, rear, left, right and top spherical surfaces of the hollow spherical body (1). The partitioned pressure measuring points are realized through a pressure cavity (3) in connection with the hollow spherical body and pressure measuring holes (2) uniformly distributed in the cross-shaped manner at intervals. The pressure measuring holes transmit the pressure to a pressure scanning valve (5) through a pressure measuring pipe (4). The pressure scanning valve converts a received pressure signal into a digital signal. Meanwhile, the pressure scanning valve transmits the digital signal to a calculation unit (6) arranged in the hollow spherical body, so that atmospheric parameters and the current atmospheric data information of an aircraft are calculated by the calculation unit. In this way, the simultaneous acquisition and the omnidirectional measurement of multi-point pressures at different airflow angles in different areas can be achieved.

The invention discloses a camera calibration method and system for object three-dimensional geometrical reconstruction, and belongs to the technical field of computer image processing. The method includes the following steps: arranging one or more coded calibration mold plates in a scene containing a to-be-reconstructed dimensional object; picking serial images of the to-be-reconstructed dimensional object through a camera; processing the image sequence and obtaining the image coordinate of each calibration point in each visible calibration mold plate; and obtaining the camera calibration parameters according to the image coordinates. The system comprises a group of camera calibration mold plates, the camera and a camera calibration processing unit, wherein the camera calibration mold plates can be arranged around the to-be-reconstructed object; and the camera calibration processing unit is used for conducting image analysis, geometrical processing and camera calibration on the serialimages and obtaining the camera calibration parameters. The method and system can be used for the technical field of computer vision, computer image processing, three-dimensional geometrical modeling, and the like.

The invention belongs to the field of computer simulation technology, and relates to a system and method for realizing virtual-real somatosensory interaction of digital Zenghouyi bells. The system comprises a somatosensory interaction input module, a logic interaction module, a virtual-real visual display module and a virtual-real audio output module. The method comprises a step of playing the virtual bells by a handheld somatosensory controller, and a step of interacting designated movements with virtual buttons by a fixed somatosensory controller. By virtue of multimedia technology and virtual reality technology, the system can present the digital Digitalzeng Houyi bells vividly in the aspect of appearance and sound, and solves the problems of heavy weight, high possibility to damage, inconvenience in transportation, strict requirement on storage conditions and high requirement on an exhibition environment for exhibition of real or fake Zenghouyi bells. Based on somatosensory technology, a user can play the bells by holding the handheld somatosensory controller, thereby improving the interactivity and enjoyment of exhibition.

The invention relates to a preparation method of tricholoma giganteum massee compost which comprises the following components according to the weight percent: 32-45 of pure straw powder, 25-40 of bran, 12-19 of dried dairy manure, 3.6-6.7 of corn flour, 3.5-4 of rice bran powder, 0.5-1 of bean cake powder, 1.7-2 of rape seed cake, 0.5-1 of white sugar, 0.1-0.3 of plaster, 0.1-0.3 of calcium carbonate, 0.1-0.3 of sanmate and 0.5-0.8 of monopotassium phosphate. The preparation method comprises the following steps: combining the pure straw powder, the bran, the dried dairy manure, the corn flour, the rice bran powder, the bean cake powder and the rape seed powder together according to a certain proportion; pouring into a mixing machine to be ground into grains of about 100mu; adding the white sugar, the plaster, the calcium carbonate, the sanmate and the monopotassium phosphate according to a certain proportion after taking out; adding water according to the proportion of 1:1.5-1:1.8 and uniformly mixing, placing into a fermentation tank and piling up, covering by plastic cloth, and pressing and fermenting for 48h so that the qualified compost is prepared.

The invention relates to a preparation method of nameko nutriments. The nameko nutriments comprise the following components by weight percentage: 35-55 of rice bran, 25-45 of cotton seed hull, 10-16 of corncob, 1.5-2 of bean cake, 0.5-1 of wheat bran, 0.5-1 of corn flour, 0.5-1 of plaster, 1.5-2 of beanstalk, 0.1-0.3 of oxygen enriched powder, 0.1-0.3 of nitrogen-phosphorus-potassium compound fertilizer, 0.1-0.3 of carbendazol and 0.5-0.8 of calcium superphosphate. The preparation method of the nameko nutriments comprises the following steps: combining rice brans, cotton seed hulls, corncobs, bean cakes, wheat brans, corn flours and beanstalks together in proportion, pouring the mixture into a pulverizer, pulverizing the mixture into particles of about 80 meshes, taking out the particles, adding plaster, oxygen enriched powder, nitrogen-phosphorus-potassium compound fertilizer, carbendazol and calcium superphosphate in proportion, pouring the mixture into a stirrer, stirring the mixture for 35 minutes, adding water in the proportion of 1:1.1-1:1.3, uniformly stirring the mixture, stacking the mixture, fermenting for 6 hours and obtaining the qualified nameko nutriments.

The invention discloses a high-power LED (light-emitting diode) light source packaging structure manufactured by graphene and production process thereof, and relates to high-power LED light source packaging. At present, the area and weight of a baseplate are added to accelerate heat dissipation for a high-power LED, the light source volume of the whole high-power LED is increased, weight is increased, LED light source cost is improved, and meanwhile the advantages such as, portability and the like of the LED are lost, thereby being difficult to apply. The high-power LED light source packaging structure provided by the invention comprises a baseplate which is fixedly connected with at least one chip and electrically connected with the chip, and the high-power LED light source packaging structure is characterized in that a single layer graphene material is covered on at least one of the upper surface and lower surface of the baseplate; the baseplate surface in a chip loaded region uses single layer flake graphene as a heat conduction, radiating material, the physical characteristic of the graphene is fully utilized, the heat energy generated by the chip when the high-power LED light source is conducted so as to diffuse; and under the condition of not increasing the light source weight and volume, the operating temperature of the chip is obviously improved.

The invention discloses an uninterruptible power supply, which comprises an electric supply input end and an output device. The output device is provided with a selector switch, a common output unit, a controlled uninterrupted power output unit and an output end, wherein the common output unit, the controlled uninterrupted power output unit and the output end are respectively connected with the selector switch; an electric supply leading-in end, a main switch, a power supply filtering unit and the common output unit are connected in sequence; the power supply filtering unit is also connected with an intelligent detection unit, an intelligent control unit and a display unit in sequence; the power supply filtering unit is provided with a lightning protection anti-interference module; the intelligent control unit is also respectively connected with a charge control unit and a lithium-ion power battery unit; the power supply filtering unit is also connected with a rectification unit, the charge control unit, the lithium-ion power battery unit, a high-frequency control unit, an inverter circuit, a switching control unit, an overcurrent overload detection unit and the controlled uninterrupted power output unit in sequence; and the rectification unit is also connected with the switching control unit.

The invention relates to a preparation method of a mushroom cultivation material. The mushroom cultivation material is prepared by the following components by the weight percent: 35-55 of cottonseed husk, 25-45 of rice bran, 10-16 of mill offals, 1.5-2 of bean cake, 0.5-1 of brewers grain, 0.5-1 of peanut shell, 0.5-1 of gypsum, 1.5-2 of sorghum husk, 0.1-0.3 of carbendazim, 0.1-0.3 of nitrogen-phosphorus-potassium compound fertilizer, 0.1-0.3 of oxygen-increasing powder and 0.5-0.8 of corn flour. The cottonseed husk, the rice bran, the mill offals and the bean cake are combined together according to the weight percent and poured into a crushing machine to be crushed into mixture with 120 meshes of particles, the mixture is taken out, the brewers grain, the peanut shell, the gypsum, the sorghum husk, the carbendazim, the nitrogen-phosphorus-potassium compound fertilizer, the oxygen-increasing powder and the are added to mixture according to the weight percent, the new mixture is poured into a stirring machine to be stirred for 60 minutes and then taken out, water is added to the mixture according to the proportion of 1:1.3-1:1.5, and the mixture is evenly blended and piled in stacks to be fermented for 6 hours to obtain the qualified cultivation material.

The invention discloses a wide view field imaging structure for recombining stabilized platform functions and a control method of the wide view field imaging structure. The wide view field imaging structure comprises a base, a transverse roll ring frame, a pitching ring frame, a transverse roll shaft motor, a pitching shaft motor, a 45-degree compensating mirror and an imaging instrument. A stabilized platform is recombined to the wide view field imaging structure, a classical PID three-ring control algorithm in the control field is adopted, wide view field swing imaging in the wing expanding direction and forward image motion compensation in the flying direction are achieved, the stabilized platform is configured to the imaging instrument, and the limit problems of the instrument weight and the design dimension caused by a general stabilized platform are effectively solved.

The invention relates to the technical field of smart wearing, and provides a smart watch. The smart watch comprises a watch body and a watchband; the watchband is connected to two ends of the watch body; a rechargeable battery is arranged in the watch body; a charging coil is arranged in the watchband, which forms a charging loop with the rechargeable battery after the watchband is closed. According to the smart watch, the rechargeable battery in the watch body is charged through the charging coil, thus the watchband has the effect of performing wireless charging for the watch body, besides the effect of loading the watch, and the problem that a wireless charging device added in the watch body leads to the increase of weight and volume of the watch body in the prior art is solved.

The invention discloses a power density adjustable film reflecting and condensing space solar energy collecting station, which comprises a spacecraft platform, an optical system and a light path adjusting mechanism, wherein the optical system comprises a main condenser, an auxiliary condenser and a plane mirror; the main condenser and the auxiliary condenser are arranged in opposite directions, optical axes of the main condenser and the auxiliary condenser are overlapped, and a normal distance between the main condenser and the auxiliary condenser is adjusted through the light path adjusting mechanism to change the power density of output light beams; the angle of the plane mirror is adjusted through the light path adjusting mechanism to change the direction of the output light beams; sunlight is condensed and reflected to the auxiliary condenser through the main condenser, the reflected light rays are condensed and reflected to the plane mirror through the auxiliary condenser, and the light beams are reflected to a target through the plane mirror.

The invention relates to an atomization eye patch. The atomization eye patch comprises an outer housing, an inner housing sleeving the outer housing and a silica gel ring arranged on the inner housingand in contact with the face, wherein a fumigation cavity is formed in the inner housing, a liquid storage cup and an atomizing and heating mechanism are arranged in the cavity between the outer housing and the inner housing, the atomizing and heating mechanism comprises a liquid guiding device and an atomizing device, the inner housing is provided with an air inlet hole and an inner exhausting hole, the outer housing is provided with an outer exhausting hole communicated with the inner exhausting hole, the liquid guiding device extends into the liquid storage cup, the atomizing device atomizes liquid guided out of the liquid guiding device, mist enters the fumigation cavity through the air inlet hole, and the inner exhausting hole and the outer exhausting hole are used for exhausting mist.

The invention relates to a preparation method of snapping turtle feed, which comprises 8 to 11 percent of fresh chicken entrails, 11 to 13 percent of fresh duck entrails, 11 to 13 percent of fresh and alive fish, 6 to 8 percent of fresh loach, 11 to 13 percent of fresh green shrimp, 2 to 4 percent of fresh catfish, 9 to 11 percent of fresh green bean particle, 4 to 6 percent of fresh turnip cube, 8 to 11 percent of fresh corn particle, 2 to 6 percent of bone meal, 1 to 3 percent of various vitamins, 0.5 to 1.5 percent of salt, 1 to 3 percent of pine needle meal, 0.5 to 1.5 percent of rhizoma anemarrhenae meal, 1 to 3 percent of selfheal meal, 1 to 3 percent of folium isatidis meal, 1 to 3 percent of cordate houttuynia meal, 0.5 to 1.5 percent of radix scrophulariae meal, 1 to 3 percent of ricepaper pith meal and 0.5 to 1.5 percent of quisqualis indica meal, wherein the percentage is percentage by weight.

The invention relates to a main wing surface structure of large aspect ratio wing, and belongs to the field of aviation. The main wing surface structure with the large aspect ratio comprises a honeycomb sandwich upper wall panel 1, a cap type reinforced lower wall panel 2, a box type main beam 3, a rear wall 4, a leading edge skin 5, a wing rib 6 and an adhesive 7. The honeycomb sandwich upper wall panel 1 is of a sandwich structure co-cured by carbon fiber composite inner and outer panels and a lightweight paper honeycomb. The cap-type reinforced lower wall panel 2 is of a cap type reinforcedstructure integrally cured by a carbon fiber composite skin and a foam core. The box type main beam 3 is of an integrated structure co-cured by adhering carbon fiber composite materials. The rear wall 4, the leading edge skin 5 and the wing rib 6 are of a carbon fiber composite press plate structure. The adhesive 7 is a room temperature curing paste adhesive. According to the respective bearing characteristics, each component adopts the corresponding structural form, which fully exerts the weight loss advantage of the composite material, and effectively solves the contradiction between the high load bearing and the light weight of the main wing surface structure of large aspect ratio wing.

The invention relates to a method for preparing auricularia polytricha culture material, needing the following materials by the weight percent: 35-55 of cotton seed hulls, 25-45 of rice bran, 10-16 percent of mixed wood dust, 1.5-2 percent of corn cob, 0.5-1 of straw, 0.5-1 calcium superphosphate, 0.5-1 of plaster, 1.5-2 of beanstalk powder, 0.1-0.3 of oxygen increasing powder, 0.1-0.3 of nitro-phosphor-potash compound fertilizer, 0.1-0.3 of mold resisting liquid and 0.5-0.8 of calcium superphosphate. The method for preparing auricularia polytricha culture material comprises the following steps: the cotton seed hulls, the rice bran, the mixed wood dust, the corn cob, the straw and the beanstalk powder are taken according to the weight percent, mixed together and poured into a pulverizer to be pulverized into mixture with granules of about 80 meshes; the mixture is taken out; the superphosphate, the plaster, the oxygen increasing powder, the nitro-phosphor-potash compound fertilizer, the mold resisting liquid and the calcium superphosphate are added to the mixture; the new mixture is poured into a stirrer to be stirred for about 70 min; the stirred mixture is taken out and then put into a fermentation tank; water is added to the stirred mixture at the ratio of 1:1.2-1.3; and the stirred mixture is stirred again and stacked; and the stacked mixture is sealed by a thick plastic film to be fermented for 10-12h, therefore, the qualified auricularia polytricha culture material is prepared.

The invention relates to a no-cable electrical system of a micro integrated aircraft. The no-cable electrical system comprises a core processing unit, a sensor system, a sensor, a performing mechanism and a wireless ad hoc network, wherein the core processing unit is a task management and information processing core of the electrical system of the aircraft, and is in charge of flight control, track planning, positioning resolving, electrical control, remote-control remote-measuring and full-system resource management; the sensor system carries out relevant information sensing, acquisition and transmission on the aircraft in a wireless mode; an inertia unit in the sensor and a circuit part of a rate gyroscope are separated from the device part; a servo mechanism in the performing mechanism is integrated with a servo mechanism driver; the wireless ad hoc network adopts a time division multiplexing time trigger scheduling mechanism to carry out high-speed transmission of wireless data, so that data transmission service is provided with smallest shake and controllable time delay among nodes, high-speed real-time conflict-free data transmission is guaranteed, a space utilization rate of the aircraft is remarkably increased, and general-assembly general-measuring efficiency is improved.

The invention relates to a preparation method of Tricholoma lobayense Heim culture material. The culture material is composed of the components in percentage by weight: corn cob powder, sorghum sweetmeat cake powder, dry sheep feces, wheat bran, potassium fertilizer, maize meal, gypsum, table salt, omethoate, yeast powder, procymidone and light calcium carbonate. The culture material is low in expense, easy in material obtaining, and simple in formula and preparation method; a great deal beneficial microorganisms generated from the components and the granular organic fertilizer in the components can meet the growth and development demands of Tricholoma lobayense Heim, the produced Tricholoma lobayense Heim is large in size, enough in weight, high in growth speed, and the grown Tricholoma lobayense Heim is white and tender, delicious in taste and rich in nutrients. The yield is increased, and the defects that the Tricholoma lobayense Heim is small in size, light in weight, slow in growth, and easy in warping and occurrence of spot disease are solved.

The invention discloses a coaxial turbo-shaft engine. An exhaust opening and an air inlet of the air compressor are deflected a preset angle so that one horizontal U-shaped air flow passage is formed in the air compressor; meanwhile, the exhaust opening and air inlet of the combustion chamber are deflected a preset angle so that one horizontal U-shaped air flow passage is formed in the combustion chamber; the air inlet of the combustion chamber is communicated with the exhaust opening of the air compressor to form an S-shaped air flow passage. Thus, the layout mode of an engine rotor structure and the layout structure for air charging and air exhausting are integrally changed. The coaxial turbo-shaft engine has the advantages of solving the technical problem that an existing turbo-shaft engine is relatively large in overall length and weight because of application of a serial-connection layout mode which adopts shaft coupling, and realizing the technical effects that the engine is short in overall length, light in mass, simple in supporting structure and high in space utilization rate.

The invention relates to a yaw speed reducer of a wind power generator. Four-stage satellite transmission structures are arranged in a box and are connected with each other to be transmitted to an output gear shaft in sequence; a motor flange is connected to the upper end of the box; the output gear shaft is arranged in a support body through an upper bearing and a lower bearing and is sealed by an oil seal base; a first-stage internal gear ring is connected into the motor flange through bolts; a motor input connection sleeve is arranged in the motor flange through a bearing; the number of theinternal teeth of the motor input connection sleeve is the same as the number of the external teeth of a first-stage sun gear; and the internal teeth of the motor input connection sleeve and the external teeth of the first-stage sun gear have the same modulus and the same pressure angle of 20 degrees and are in mutual meshing transmission. The yaw speed reducer has compact structure, reasonable design, good uniform-loading effect, strong bearing and impact resistance capacity, good sealing performance and a uniformly-forced satellite gear meshed with the floating sun gear, is convenient to make and not easy to cause the environmental pollution and runs stably, thereby meeting the requirements of the clients.

The invention provides a front auxiliary vehicle frame assembly and a vehicle. The front auxiliary vehicle frame assembly comprise a front transverse beam, a left longitudinal beam, a right longitudinal beam and an auxiliary vehicle frame body assembly; the left longitudinal beam, the front transverse beam, the right longitudinal beam and the auxiliary vehicle frame body assembly are sequentiallyconnected end to end to form a frame body structure; and the left longitudinal beam, the front transverse beam and the right longitudinal beam are each made of a hollow aluminum alloy profile. In thefront auxiliary vehicle frame assembly, the left longitudinal beam, the front transverse beam and the right longitudinal beam are each made of the hollow aluminum alloy profile, the manufacturing technology of the front auxiliary vehicle frame assembly can be reduced while the weight of the front auxiliary vehicle frame assembly can be decreased, thus the weight of the vehicle is decreased, the lightweight effect of the vehicle is achieved, and thus the endurance mileage of the vehicle is increased.

The invention discloses a water surface floating power generation device, belongs to the power generation field of rescue equipment, and aims at solving the problem of floating power generation. The device comprises a large hollow sphere and a small hollow sphere, and an electrode is plated on the inner surface of the hollow sphere. Metal oxide nanorods grow on the electrode and form a nano array.Electrodes are plated on the outer surfaces of the hollow balls. A friction material is attached to a gold layer, and the small hollow ball is arranged in the large hollow ball. The interiors of thesmall hollow ball and the large hollow ball have spaces for enabling a small ball to move. One wire is connected to the electrode of the small hollow ball, and passes through the large hollow ball andis led out of one wire hole in the large hollow ball; the other wire is connected to the electrode of the hollow large ball, is led out from the other wire hole. The two wire holes allow the wires tocome out and are sealed, and the two wires are connected with a signal transmitting device to supply power, thereby achieving the floating power generation.