56results about How to "Easy to achieve lightweight" patented technology

An optical system of satellite-borne differential absorption spectrometer comprises a relay optical system and an Offner imaging spectrometer system. The relay optical system is composed of a relay reflector, relay lenses and a color separation filter. The Offner imaging spectrometer system is composed of an incident slit, a convex grating, and a concave reflector. The relay optical system uses the color separation filter to split a detection waveband to form four channels, which are focused by four groups of relay lenses to the incident slit of the spectrometer. Light at each waveband entersthe spectrometer from the incident slit of the spectrometer, is split by the convex grating, and has the light path turned and focused on a detector. The invention utilizes a relay reflector to turn the light path, and utilizes the color separation filter to split the detection waveband into four channels, to therefore improve the detection resolution of the system, ensure measurement accuracy and realize compact volume of the whole optical system. The Offner imaging spectrometer has excellent imaging spectrum performance and reduced distortion. The invention facilitates miniaturization and weight reduction of the whole system, and is suitable for space technology.

The invention discloses a solar wing / antenna unfoldable supporting truss. The solar wing / antenna unfoldable supporting truss includes a first supporting rod, a second supporting rod, a third supporting rod and a fourth supporting rod. According to the solar wing / antenna unfoldable supporting truss of the invention, a truss rod system is optimized; the unfolding structure of an existing mechanism is simplified; the number of rod components can be decreased; a V-shaped oblique supporting type structure is adopted, so that the support stiffness of the solar wing / antenna unfoldable supporting truss in various spatial directions can be increased; inter-rod hinges are obliquely folded crossing type hinges, and therefore, the enveloping size of the folded truss rod system can be decreased, and the folding ratio of the supporting truss can be improved. The invention also provides an assembly adjustment method of the solar wing / antenna unfoldable supporting truss. With the method adopted, the rod components are not required to be dissembled and assembled in an installation and adjustment process. The method has the advantages of simplicity, convenience, easiness in implementation and high installation and adjustment efficiency.

The invention provides a horizontal multi-joint industrial robot which comprises a base, a horizontal swing arm assembly and a ball spline lead screw positioning assembly, wherein the horizontal swingarm assembly is rotatably mounted on the base; the ball spline lead screw positioning assembly comprises a ball spline lead screw shaft and a driving device; the driving device is used for driving the ball spline lead screw shaft to horizontally rotate and / or move up and down in the height direction of the horizontal swing arm assembly; the driving device comprises a driven assembly; the driven assembly is mounted on the ball spline lead screw shaft and is fixed at the end, far away from the base, of the horizontal swing arm assembly through a support frame; the support frame comprises a support plate and a support rod; the support rod supports the bottom of the support plate; the ball spline lead screw shaft is arranged on the support plate and the horizontal swing arm assembly in a penetrating manner; and the driven assembly is positioned in a space defined by the support plate, the support rod and the horizontal swing arm assembly. The horizontal multi-joint industrial robot is easy to assemble, compact in structure and small in inertia and can conveniently realize light weight.

The invention discloses a folding and unfolding mechanism facing a spacecraft multi-plate unfoldable antenna. The folding and unfolding mechanism comprises an antenna inner plate unfolding part, an antenna outer plate unfolding part and a truss rod system. According to the folding and unfolding mechanism facing the spacecraft multi-plate unfoldable antenna provided by the invention, the layout and composition of an existing mechanism are optimized, an inner plate active device is arranged on an antenna inner plate and is directly connected with an internal connecting hinge on one side, an outer plate active device arranged on the antenna inner plate is positioned in the middle of two outer plate connecting hinges and is connected with an outer plate through a set of connecting rod mechanism; the antenna inner plate and the outer plate are driven by the two sets of mutually independently controlled active devices to realize unfolding; the truss rod system adopts a single-point diagonal bracing type structure to be connected with a spacecraft platform, and the truss rod system composed of a multi-joint hinge and a spacecraft platform mounting support is positioned in a plane formed by the multi-joint hinge and an antenna outer plate mounting support, so that the support stiffness of the truss rod system is effectively improved, and the folding and unfolding mechanism can be used for unfolding and supporting of two spacecraft single-wing flat plate type antennas.

Provided is a small sized light linear generator system having a two-stroke free piston engine, comprising a cylinder having an induction chamber and a combustion chamber, a motor rack arranged at one end of the cylinder, an outer stator fixed inside the motor rack, an inner stator fixed inside the motor rack and having a gap with the outer stator, a rotor carrying out straight reciprocating motion along the gap formed by the outer stator and the inner stator, a magnet installed upon the rotor, a plurality of helical compressing springs arranged inside the motor rack, used for supporting the reciprocating motion of the rotor, and leading to the resonance motion of the rotor, a piston arranged inside the cylinder, connected with rotor for carrying out reciprocating motion, and compressing the fuel and air inside the combustion chamber, a snifter valve arranged upon the cylinder and used for providing fuel and air for the interior of the induction chamber, an induction flow path communicating the induction chamber and the combustion chamber, and an exhaust port arranged upon the cylinder. With the above technical scheme, the free piston linear generator is likely to operate under resonance state, thereby improving the generating efficiency and output power.

A formula student race car steering system and manufacturing and installing methods thereof are provided. The steering system comprises a steering component, a compressing device, adjustable transverse pull rods and a steering wheel assembly; the steering component includes a steering unit housing, a transverse casing, a gear shaft and a rack; the steering wheel assembly is connected with the steering unit housing through a connection rod component. The manufacturing method includes: performing fitting analysis according to experimental data from race tire officials, and selecting most suitable Ackermann percent; optimally screening out a reasonable steering gradient layout form via MATLAB, and checking steering torque and fitting a Ackermann curve for comparative analysis; using adams tocorrect and manufacture the corresponding steering component, compressing device, adjustable transverse pull rods and steering wheel assembly; locking the steering unit housing to one end of the transverse casing; selecting a suitable gear shaft to rack transmission ratio, and installing the compressing device and the steering wheel assembly; adjusting the length of the adjustable transverse pullrods to finish installation. The formula student race car steering system and the manufacturing and installing methods thereof have the advantages that precision and sensitivity are good, stability and reliability are good, and a limiting function is provided.

The invention relates to a torque transmission shaft with a yoke for a universal joint and a manufacturing method therefor. By plastic working of one axial end of a rod-shaped element (21), which has an outer diameter (D21) that coincides with the outer diameter (D19) of the completed rod section (19) and on the other axial end of which the base end of a forked yoke (9) is fixed, to change the shape of the outer circumferential surface of the one axial end in the radial direction, a male spline section (11a), wherein the root circle diameter (d11) is smaller than the outer diameter of the rod section (19) and the addendum circle diameter (D11) is greater than the outer diameter of the rod section (19), is formed on the outer circumferential surface of the one axial end.

The invention belongs to the technical field of optical equipment, and particularly relates to an ultraviolet and visible light double optical axis parallelism calibration device under external field environment. The device aims at solving the problem that ultraviolet target imaging detection system optical axis parallelism is influenced by environmental factors existing in the prior art. In order to resolve the problems existing in the prior art, the device comprises a focal depth self-calibration assembly and a radial self-calibration assembly, wherein the focal depth self-calibration assembly is composed of an ultraviolet light source assembly, a visible light source assembly, a diaphragm disk, a semitransparent semi-reflective mirror, a receiving component charge coupled device (CCD), a secondary reflecting mirror, a main reflecting mirror and a base CCD vidicon; and the radial self-calibration assembly comprises a plane optical flat which is arranged on a light circuit between the main reflecting mirror and the base CCD vidicon. The device has the advantages of being compact in structure, effectively solving the maladjusted calibration problem of ultraviolet and visible light double optical axis parallelism of an ultraviolet target imaging detection system, and improving ultraviolet and visible light double optical axis parallelism calibration efficiency. The measurement accuracy of the device reaches to 10 seconds and can be kept less than or equal to 10 seconds under the condition that the temperature is between -30 DEG C and +60 DEG C.

Provided is a wide-spectrum-band diffraction optical imaging system. The wide-spectrum-band diffraction optical imaging system comprises an optical module, a detector module, and an image restoration module, the optical module comprises a harmonic diffractive optical element and a wave-front coding element, lights are collected to images via the harmonic diffractive optical element, aberration modulation of the collected lights is performed via the wave-front coding element, the detector module receives the modulated lights for photoelectric conversion and obtains the images, the image restoration module processes the images outputted by the detector module, removes the modulation effect of the wave-front coding element on the collected lights, and eliminates the aberration with the combination of modulation information of the collected lights by the wave-front coding element, and the images are obtained. According to the wide-spectrum-band diffraction optical imaging system, the harmonic diffractive optical element is regarded as the main lens of the optical system, the characteristic of achromatism of the harmonic diffractive optical element and the characteristic of aberration correction of the wave-front coding technology are employed, the spectrum bandwidth is wide, the complexity and tolerance constraint of the system are reduced, and the diffraction optical imaging system is more easily realized.

The present invention discloses a wheelchair with single rotation driven three attitude changes. The wheelchair with single rotation driven three attitude changes comprises: a seat, a backrest, a legrest, a vehicle wheel frame, a locking rod and a driving mechanism; a middle part of a bottom surface of the seat is hingedly provided with a bracket, the bracket and the seat surrounds a quadrangularstructure, and besides, each edge of the bracket is hingedly connected to each other; a bottom part front side of the backrest is hingedly connected a seat rear side, and a bottom part rear side is fixedly connected with a rear side edge of the bracket; an upper part of the leg rest is hingedly connected with the seat and the bracket; a top part of the vehicle wheel frame is hingedly arranged ata hinge part of the seat and the bracket; the locking rod is inclinedly arranged, one end of the locking rod is disconnectably hinged with a rear side of the seat, the other end is disconnectably hinged with a lower part of the leg rest, and a middle part is hingedly connected with the vehicle wheel frame; and an output end of the driving mechanism is arranged at the hinged part of the seat and the bracket, and the driving mechanism is used for driving the quadrilateral surrounded by the bracket and the seat to move to conduct deformation to realize the attitude changes of the wheelchair. Onlyone rotation driving is needed and the driven clockwise and counterclockwise rotations realize the three attitude changes and motion coordination of the wheelchair.

The invention discloses a piezoelectric drive underwater propeller vector propulsion system and a working method thereof. The propulsion system comprises a shell, a piezoelectric drive unit, a connecting shaft and a spring. The connecting shaft comprises a fixing part, a supporting part and an adjusting part which are coaxially and fixedly connected in sequence; the shell comprises a stress part,a conduction part, a ball hinge, a connecting cylinder and a propeller; the ball hinge comprises a ball shell and a ball body; the piezoelectric drive unit comprises a driving disc, a first piezoelectric ceramic piece and a second piezoelectric ceramic piece; the piezoelectric drive unit is in interference connection with the supporting part of the connecting shaft; the spring sleeves the supporting part of the connecting shaft, one end of the spring abuts against the piezoelectric drive unit, and the other end of the spring abuts against the connecting shaft adjusting part to apply pre-pressure; the ball body of the ball hinge is connected with the adjusting part of the propeller system connecting shaft through threads; during work, piezoelectric ceramics of the piezoelectric driving unitare excited, particles on the surface of a driving disc of the piezoelectric driving unit generate micro-amplitude rotating traveling wave motion, the shell is driven by friction force to rotate, andvector propulsion is achieved.

The invention provides a glass fiber reinforced polypropylene composite material, an engine intake manifold and an automobile. The glass fiber reinforced polypropylene composite material comprises thefollowing components in parts by weight: 45-60 parts of polypropylene resin, 20-45 parts of glass fibers, 1-2.5 parts of an antioxidant, 0.5-1.5 parts of a lubricating agent, 5-10 parts of a compatilizer, 8-15 parts of a flexibilizer and 0.5-1.5 parts of a light stabilizer. The invention further provides a preparation method of the composite material and a method for manufacturing the engine intake manifold by adopting the composite material. The glass fiber reinforced polypropylene composite material not only can meet the performance requirements of the engine intake manifold, but also has very small density and low cost, easily realizes the light weight of an engine and the automobile and reduces the cost of the engine and the automobile.

The invention discloses an integrated structure of an air duct and an internally-installed middle top plate. An upper layer air conditioner air inlet plate and a lower air conditioner air outlet plate are of arc-shaped structures. A gap is formed between the upper layer air conditioner air inlet plate and the lower air conditioner air outlet plate. A rubber sealing strip and an aluminium alloy installing bracket are arranged in the position, connected with the edge of a vehicle roof, of the upper layer air conditioner air inlet plate. Compared with the prior art, according to the integrated structure of the air duct and the internally-installed middle top plate, the internally-installed middle top plate of a vehicle is turned into an air duct bottom plate, the functions of the air conditioner air duct and the internally-installed middle top plate are integrated, two parts are combined into one part, the vehicle inner space is greatly saved, weight is reduced, the structure is mainly composed of whole glass steel, the aluminium alloy installing bracket and the rubber sealing strip, the integration level is high, and the maintainability is high.

The invention relates to the field of batteries, and discloses a battery pack. The battery pack (1) comprises a battery unit (10). The battery unit (10) comprises a plurality of single batteries (100), a connecting component (11) is arranged on each single battery (100), and the battery pack (1) further comprises a supporting component (12) which can be matched with the connecting components (11)to connect the connecting components (11) of the adjacent single batteries (100). According to the invention, the connecting components are arranged on the single batteries of the battery pack, and the supporting components which can be matched with the connecting components are further arranged in the battery pack so as to connect the connecting components of the adjacent single batteries, so that the overall structure of the battery pack is firm.

The invention discloses a large-load core holder capable of integrating CT scanning and a true triaxial experiment device.The large-load core holder comprises an upper force transmission end, a lower force transmission end and a barrel; a sample cavity and four capsule containing cavities are formed in a hollow cavity of the barrel; two capsule bodies located in the left capsule containing cavity and the right capsule containing cavity are used for X-direction flexible loading force transmission, and two capsule bodies located in the front capsule containing cavity and the rear capsule containing cavity are used for Y-direction flexible loading force transmission; each capsule body is provided with an inwards-turned skirt edge connector; a sealing plug is in interference fit connection with the interior of each inwards-turned skirt edge connector; a liquid injection pipe communicated with an inner cavity of the corresponding capsule body is arranged on each sealing plug in a penetrating mode; all the liquid injection pipes penetrate out of the upper force transmission end; in addition, a Z-direction loading piston rod is arranged in the center of the lower force transmission end in a penetrating mode. The large-load true triaxial experiment device comprises the large-load rock core holder, a Z-direction loading cylinder, an X-direction hydraulic loading system, a Y-direction hydraulic loading system and a Z-direction hydraulic loading system.

The invention provides a preparation device and method for a porous low-melting-point metal exoskeleton. The preparation device for the porous low-melting-point metal exoskeleton comprises a shell, a foaming device and a gas generation device, wherein the foaming device and the gas generation device are located inside the shell, and the foaming device comprises a foaming cavity, an electrode plate and a low-melting-point metal and foaming agent mixture. The preparation device provided by the invention can combine the unique physical and chemical properties of low-melting-point metal and the mechanical property advantages of light weight and high strength of a porous structure, and can be effectively used for medical mechanical exoskeletons.

The invention belongs to the technical field of antenna testing. The invention particularly relates to a high-speed and high-precision desktop type small near-field tester which comprises an optical platform, a two-dimensional cross scanning mechanism, a test probe, a control box, a two-dimensional high-precision adjusting turntable, an antenna mounting bracket, a parallelism detector, a control terminal and a terminal adjusting mechanism, the two-dimensional high-precision turntable and a two-dimensional cross mechanism are arranged on the optical platform in parallel front and back at intervals; the antenna mounting bracket is arranged at a rear part of the two-dimensional high-precision adjusting turntable; the test probe and the antenna mounting bracket are oppositely arranged; the test probe can move up and down and left and right for scanning through the two-dimensional cross scanning mechanism; the control terminal is movably connected with the optical platform through the terminal adjusting mechanism, the control terminal is connected with the control box through a circuit or a wireless signal, the control box is connected with a driving element of the two-dimensional crossscanning mechanism through a circuit or a wireless signal, the whole tester system is integrated on the optical platform, and the high-precision and high-speed testing, high repeated positioning precision and low noise are achieved.

The invention provides a superconducting power storage device and a control method thereof. The superconducting power storage device comprises a first casing body, a superconducting coil and a superconducting generator. The superconducting part of the superconducting generator and the superconducting coil are arranged in the superconducting environment in the first casing body. The power output end of the superconducting generator is electrically connected with the superconducting coil. The superconducting coil and the superconducting part of the superconducting generator are arranged in the superconducting environment of the first casing body, so that both the superconducting generator and the superconducting coil are in a superconducting state. The power output end of the superconductinggenerator is electrically connected with the superconducting coil. The superconducting generator in the superconducting state is driven by a drive device to generate power, and the generated power isstored in the superconducting coil. The superconducting generator and the superconducting coil are in a superconducting state, so that the power storage density of the superconducting coil is not limited. The power storage efficiency of the superconducting power storage device is improved.

The invention relates to a disassembling and assembling device for a heavy wheel. The technical scheme is that: two side brackets [7] are symmetrically fixed on the two ends of a beam [9] to form a U-shaped frame; rollers [8] are arranged below the two ends of the two side brackets [7] respectively; two speed reducers [6] are arranged at one end of each of the two side brackets [7] respectively; an additional pull rod [11] is movably clamped on a short pin shaft [12]; the beam [9] is provided with a handrail [1]; two oscillating bar shafts [10] are arranged in parallel above the two side brackets [7] respectively; one end of each oscillating bar shaft [10] is connected with the output end of the corresponding speed reducer [6], and the other end of the oscillating bar shaft [10] is arranged in a corresponding bearing seat [13] respectively; and the upper ends of oscillating bars [4] fixedly arranged at the two ends of each oscillating bar shaft [10] are provided with rotary rollers [3] respectively. The device has the characteristics of high centering rate, convenient disassembly and assembly, high stability, safety, reliability and contribution to vehicle mounting and field use.

The invention provides an electric car and a controlling method thereof. The electric car includes a car frame, car wheels, a superconducting energy storage device, a driving device and a superconducting motor. A superconducting part and a superconducting coil of a superconducting generator are both installed in a superconducting environment of a first shell body. The superconducting motor includes a second shell body and a motor body. A superconducting part of the motor body is installed in a superconducting environment of the second shell body. A rotation shaft of the driving device is connected with a rotation shaft of the superconducting generator. The superconducting generator is electrically connected with the superconducting coil. The superconducting coil is electrically connected with the power supply end of the superconducting motor. The superconducting motor drives the car wheels. A superconducting system of the electric car has very high energy storage efficiency.

The invention discloses a novel swash plate type automobile air-conditioning compressor and belongs to the technical field of manufacture of compressors. The novel swash plate type automobile air-conditioning compressor comprises a compressor cylinder block, wherein one end of the compressor cylinder block is connected with a compressor spindle through a bearing pedestal; one end of the compressorspindle is positioned outside the compressor cylinder block and is connected with a belt pulley; the other end of the compressor spindle stretches into the compressor cylinder block and is connectedwith an integrated type swash plate; the integrated type swash plate comprises a pressure plate and an oblique bearing mounted in the pressure plate; placing grooves for mounting piston bodies are uniformly distributed in the pressure plate in the circumferential direction; one side of the oblique bearing is connected with the compressor spindle for driving the oblique bearing to rotate; and the other side of the oblique bearing is in rolling connection with the spherical surface of a spherical surface shaft in the compressor cylinder block. According to the novel swash plate type automobile air-conditioning compressor, the pressure plate and the oblique bearing are designed into an integrated structure, the overall structure is more compact after optimization, the optimized oblique bearing applies stress to the pressure plate through a ball, and the pressure plate generates rolling friction to the oblique bearing, so that the frictional resistance is reduced, and the stability and theservice life of the compressor are improved and prolonged.

The invention discloses a diffraction spectrum light field computing and imaging system. The light is inputted to a spectral dispersion module and then the axial dispersion light is formed; a focusingand imaging module receives the axial dispersion light and compresses the dispersion range of the axial dispersion light by using a diffraction optical computing and recovering method so as to form the expected axial dispersion light; a light field sampling module modulates the expected axial dispersion light so as to form the modulated dispersion light; a detector module performs photoelectric conversion on the modulated dispersion light so as to obtain a blurred image; and a spectral image reconstruction module demodulates the blurred image so as to finally obtain the clear spectral image.The hardware complexity of the system can be reduced and the system has the advantage of low system data volume so that diffraction computing and spectral imaging are enabled to be more easily implemented.

The invention discloses a production method of microcrystalline mullite type calcined kaolin, the prepared microcrystalline mullite type calcined kaolin and application of the microcrystalline mullitetype calcined kaolin. The method comprises the following steps: 1) taking high-iron coal gangue with Fe2O3 content of more than or equal to 0.4% as a raw material; adjusting to enable Al2O3 content in the raw materials to be greater than or equal to 30%; (2) crushing and grinding the raw materials obtained in the step (1) to 100 meshes or above to obtain a mixed powder, (3) adding water into themixed powder, uniformly mixing to prepare a wet material, carrying out ageing and mud extruding to prepare bricks, stacking the bricks on a kiln car, drying, and calcining the kiln car in a tunnel kiln at 800-1350 DEG C to obtain the microcrystalline mullite type calcined kaolin. The calcined kaolin product prepared by the production method of the microcrystalline mullite type calcined kaolin is high in whiteness, uniform in chemical components and stable in microstructure, contains a large amount of mullite microcrystals, and is a preferred raw material for ceramic glaze, high-quality clay bricks, light mullite bricks and ceramic fiber cotton.

The invention provides a power system and a controlling method thereof and a transportation tool. The power system comprises a superconductivity energy storage device, a driving device and a superconductivity motor. The superconductivity energy storage device comprises a first shell, a superconductivity coil and a superconductivity electric generator, a superconductivity part of the superconductivity electric generator and the superconductivity coil are both arranged in a superconductivity environment in the first shell. The superconductivity motor comprises a second shell and a motor body, and the motor body is arranged in a superconductivity environment in the second shell. A rotary shaft of the driving device is connected with a rotary shaft of the superconductivity electric generator,the superconductivity electric generator is electrically connected with the superconductivity coil, and the superconductivity coil is electrically connected with the power supply end of the superconductivity motor. The superconductivity coil conducts stored electric energy to the superconductivity motor, so that the superconductivity motor drives a driving structure of a vehicle to rotate, provides power for the vehicle and improves the energy storage efficiency of a superconductivity system.

The invention discloses an extended-range electric vehicle which comprises a driving system which comprises a motor A serving as a driving motor and wheels coaxially connected with the motor A; the battery system is electrically connected with the motor A; the energy recovery system comprises an electric control clutch, an air compression pump A and a high-pressure gas cylinder; the range extender comprises a micro gas turbine and a generator which are connected with each other; the heat management system comprises a refrigerating system, a heating system, a heat exchange medium circulating system, a refrigerating fan and a heating fan. The invention further discloses a control method of the electric vehicle. Cooling is achieved through the refrigerating machine, the efficiency is high, and the electric quantity of a battery system and the endurance mileage do not need to be considered; heating / refrigerating is achieved through waste heat of the micro gas turbine, meanwhile, the high-pressure gas cylinder serves as an energy balancer, braking energy of the extended-range electric vehicle is recycled, peak load shifting of energy of the whole vehicle is achieved, and the energy utilization rate is increased while environmental protection and energy saving are achieved.

The invention discloses a folding and unfolding mechanism facing a spacecraft multi-plate unfoldable antenna. The folding and unfolding mechanism comprises an antenna inner plate unfolding part, an antenna outer plate unfolding part and a truss rod system. According to the folding and unfolding mechanism facing the spacecraft multi-plate unfoldable antenna provided by the invention, the layout and composition of an existing mechanism are optimized, an inner plate active device is arranged on an antenna inner plate and is directly connected with an internal connecting hinge on one side, an outer plate active device arranged on the antenna inner plate is positioned in the middle of two outer plate connecting hinges and is connected with an outer plate through a set of connecting rod mechanism; the antenna inner plate and the outer plate are driven by the two sets of mutually independently controlled active devices to realize unfolding; the truss rod system adopts a single-point diagonal bracing type structure to be connected with a spacecraft platform, and the truss rod system composed of a multi-joint hinge and a spacecraft platform mounting support is positioned in a plane formed by the multi-joint hinge and an antenna outer plate mounting support, so that the support stiffness of the truss rod system is effectively improved, and the folding and unfolding mechanism can be used for unfolding and supporting of two spacecraft single-wing flat plate type antennas.

The invention discloses a patch type piezoelectric driving double-propeller underwater vector propulsion system and method, the system comprises a piezoelectric driving unit, two propellers and two rudders, and the piezoelectric driving unit comprises a metal matrix and eight piezoelectric ceramic parts; the propeller comprises a fixed shaft, a rotating drum, n blades, a pre-tightening bolt, a spring and n actuating rods; the rudder comprises a direction plate, two clamping plates, four fixing bolts and two tension springs. The forward and reverse propeller rotor combination adopted by the invention rotates simultaneously to balance deflection torque. the two rudders generate precompression with the piezoelectric driving unit through the tension spring. In the working process, different signals are applied to the eight piezoelectric ceramic parts, friction is generated, the piezoelectric ceramic parts advance, retreat or steer, and vector propulsion is achieved. The structure is simple, no sealing device and no complex transmission structure exist, the piezoelectric driving technology is adopted for direct driving, and miniaturization and light weight are easy to achieve.

The invention relates to the technical field of joint assistance, and discloses an exoskeleton robot. The exoskeleton robot comprises a hip joint binding piece, two sets of driving systems of the samestructure symmetrically arranged on the two sides of the hip joint binding piece respectively and a controller. The controller is respectively connected with the two sets of driving systems, the controller is used for acquiring the tension information of the two sets of driving systems and the posture information of a human body and controlling the working states of the corresponding driving systems according to the tension information and the posture information of the human body, when the left lower limb of the human body moves, the controller is used for controlling the driving system on the left side to provide assistance for the left lower limb of the human body and controlling the driving system on the right side to be in a free move state, when the right lower limb of the human body moves, the controller is used for controlling the driving system on the right side to provide assistance for the right lower limb of the human body and controlling the driving system on the left side to be in a free move state, and by means of the mode, the power assisting effect can be guaranteed under the condition that the free walking state of a wearer is not hindered.

The invention discloses a solar wing / antenna unfoldable supporting truss. The solar wing / antenna unfoldable supporting truss includes a first supporting rod, a second supporting rod, a third supporting rod and a fourth supporting rod. According to the solar wing / antenna unfoldable supporting truss of the invention, a truss rod system is optimized; the unfolding structure of an existing mechanism is simplified; the number of rod components can be decreased; a V-shaped oblique supporting type structure is adopted, so that the support stiffness of the solar wing / antenna unfoldable supporting truss in various spatial directions can be increased; inter-rod hinges are obliquely folded crossing type hinges, and therefore, the enveloping size of the folded truss rod system can be decreased, and the folding ratio of the supporting truss can be improved. The invention also provides an assembly adjustment method of the solar wing / antenna unfoldable supporting truss. With the method adopted, the rod components are not required to be dissembled and assembled in an installation and adjustment process. The method has the advantages of simplicity, convenience, easiness in implementation and high installation and adjustment efficiency.