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33results about How to "Change pitch angle" patented technology
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Photovoltaic plate pitching angle manual adjusting and positioning mechanism
The invention discloses a photovoltaic plate pitching angle manual adjusting and positioning mechanism which comprises a standing pillar, an angle adjusting mechanism and an angle positioning mechanism. The angle adjusting mechanism and the angle positioning mechanism are arranged above the standing pillar. The angle adjusting mechanism comprises an installation platform, a lifting screw rod, a standing bearing block, a driving rotation shaft, a speed reducer, a motor installed on the speed reducer, a pitching rotation shaft which is installed in the middle of the driving rotation shaft and perpendicular to the driving rotation shaft and a pitching bearing block which is fixedly installed on the backlight side of a photovoltaic plate installation frame. The angle positioning mechanism comprises a positioning dial and a positioning pointer. The photovoltaic plate pitching angle manual adjusting and positioning mechanism is simple in structure, convenient to machine, manufacture, use and operate and capable of driving the lifting screw to move by rotating a manual handle so as to change the pitching angle of the photovoltaic plate assembly. The positioning mechanism composed of the positioning indicator and the positioning dial is arranged on the pitching rotation shaft and the pitching bearing block and precision in adjustment by an operator is improved.
Owner:陕西科林能源发展股份有限公司
Frisbee launching robot
ActiveCN107398909ARealize the launch functionRealize automatic feedingIndoor gamesManipulatorRobotAerospace engineering
The invention provides a frisbee launching robot. The robot comprises a launching device, wherein the launching device comprises a launching platform, a track, a turntable, a frisbee box used for storing frisbees and a steering engine, wherein the track, the turntable, the frisbee box and the steering engine are arranged on the launching platform; the track is arranged to form an arc shape; a channel through which the frisbee flies out is formed between the track and the turntable; the steering engine is positioned at one end of the track and is equipped with a shifting sheet for pushing the frisbee to enter the channel; a gap for storing one frisbee is formed in the bottom part of the frisbee box. According to the frisbee launching robot, the launching device is arranged and can realize the basic frisbee launching function as well as the automatic frisbee feeding function; when in use, the frisbees are stored in the frisbee box, and the shifting sheet is driven by the steering engine to push the bottom frisbee to enter the track, and then the frisbee accelerates to rotate and then flies out through the frictional force between the turntable and the track; the frisbee launching distance can be changed by changing the rotating speed of the turntable and the frictional force between the turntable and the track.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Field geographic information surveying and mapping equipment and measuring method thereof
ActiveCN112113091AReduced leveling timeReduce labor intensitySurveying instrumentsStands/trestlesEngineeringMechanical engineering
Owner:敦少杰
Portable photovoltaic bracket
ActiveCN110635755AEasy to carryEasy to transportPhotovoltaic supportsSolar heating energyLong axisEngineering
The invention provides a portable photovoltaic bracket and belongs to the technical field of solar energy utilization. A bottom plate is composed of a front bottom plate and a rear bottom plate both of which are long rectangular plate structures. An electric push rod is a four-section telescopic structure. The first section of the electric push rod is tangent to the bottom surface of the bottommost photovoltaic bracket. The left and right sides of the top surfaces of the two ends of the photovoltaic bracket in the long axis are provided with bracket guide rails that cooperate with bracket sliders. The upper end of each bracket guide rail is provided with a stopping block. One end of a double-headed screw is fixedly connected to a first motor output shaft and is connected with the rear bottom plate through a second bearing seat. The other end of the double-headed screw is fixed to the rear bottom plate through the second bearing seat. The rear bottom plate below the double-headed screwis provided with two connecting rod guide rails. The lower surface is provided with a chute that cooperates with the connecting rod guide rails. Both ends of the upper side of the topmost photovoltaicbracket are provided with connecting plates. The two ends of a slide rod with the slider are fixed to the photovoltaic bracket through the connecting plates. The middle of the upper edge of the topmost photovoltaic bracket is provided with a photoelectric detection device, and the upper surface of the rear bottom plate is provided with a controller.
Owner:SOUTHWEST JIAOTONG UNIV
Power generator and power generating system
InactiveCN103375335AChange pitch angleWind motor controlWind motor assemblyEngineeringControl theory
A power generator (1, 110) according to an embodiment includes a propeller (13), a position detector (16), and a pitch controller (50). The propeller (13) includes a plurality of blades (13b1, 13b2, 13b3) whose pitch angle is changeable, and is rotated by a fluid. The position detector (16) detects the rotational position of the propeller (13). The pitch controller (50) performs pitch control processing for changing the pitch angle depending on the position of each of the blades (13b1, 13b2, 13b3) specified by the rotational position of the propeller (13).
Owner:YASKAWA DENKI KK
Wall-mounted telescopic bracket for television
InactiveCN110925533AChange pitch angleAvoid deformationTelevision system detailsColor television detailsStructural engineeringMechanical engineering
The invention discloses a wall-mounted telescopic bracket for a television. The wall-mounted telescopic bracket comprises a wall-attached rear seat, and the wall-attached rear seat is connected withatelevision fixing frame through a telescopic mechanism. The wall-mounted telescopic bracket for the television can change the distance from a wall-mounted television to a sofa, change the pitch angleof the television, and meet the needs of people for watching the television.
Owner:XIAN HAIDE ELECTRONICS TECH
Blade pitch variation device of wind power generating unit
InactiveCN109958578AChange pitch angleTurn fasterWind motor controlMachines/enginesEngineeringBlade pitch
The invention provides a blade pitch variation transmission assembly. The blade pitch variation transmission assembly comprises a winding drum, a pitch variation bearing and a connection belt providedwith two connection ends; and the connection belt is wound around the winding drum, the two connection ends are made to be fixedly connected to the pitch variation bearing from the two sides of the winding drum, and the tangent points between the connection belt and the two sides of the pitch variation bearing are located on the two sides of a connection line between the center point of the winding drum and the center point of the pitch variation bearing correspondingly. The blade pitch variation transmission assembly drives the pitch variation bearing to rotate through the winding drum so that the pitch angle of a blade can be changed, and meanwhile, the pitch variation convenience and safety can be improved. Accordingly, the invention further provides a blade pitch variation method anda power generating unit.
Owner:XINJIANG GOLDWIND SCI & TECH
Multi-foot walking type pipeline detection robot
The invention discloses a multi-foot walking type pipeline detection robot which comprises a motor, a first speed reducer, a second speed reducer and a third speed reducer. The motor is used for driving a driving synchronizing wheel to rotate, and the driving synchronizing wheel is used for driving a driven synchronizing wheel to rotate through a synchronous belt. The driven synchronizing wheel isfixedly connected with the input shaft of the first speed reducer, and the output shaft of the first speed reducer is connected with a first steering device through a first mobile device. The two ends of the input shaft of the first speed reducer are respectively connected with the input shafts of the second speed reducer and the third speed reducer through a first cardan joint and a second cardan joint, and the output shaft of the second speed reducer and the output shaft of the third speed reducer are respectively connected with a second mobile device and a third mobile device. The second mobile device is connected with a second steering device, and the third mobile device is connected with a third steering device. The multi-foot walking type pipeline detection robot adopts a six-leg type structure and increases the stability of robot body during the robot moving. In the obstacle-crossing process of the robot, a camera does not vibrate up and down, and the image shooting effect is not affected.
Owner:大庆金帝检测有限公司
Forest spraying device
InactiveCN111109228AQuick spray operationIncrease spraying rangeTransportation and packagingRotary stirring mixersElectric machineEngineering
The invention discloses a forest spraying device. The forest spraying device comprises a bottom plate, wherein a rotary plate is rotatably connected to the left side of the upper end of the bottom plate through a rotating shaft, an electric push rod is fixedly connected to the upper end of the rotary plate, and a U-shaped fixing plate is fixedly connected to the upper end of the electric push rod;a same atomizing nozzle is rotatably connected to the inner walls of the sides, opposite to each other, of the front and rear of the U-shaped fixing plate through a pin shaft, one end of the pin shaft penetrates and extends out of the U-shaped fixing plate, and is fixedly sleeved with a swing rod, and a strip-shaped opening is formed in the rod wall of the swing rod; and a drive motor is fixedlyconnected to the outer wall of the U-shaped fixing plate, a turntable is fixedly connected to the output shaft of the drive motor, and a deflection rod which is eccentrically arranged and is movably sleeved in the strip-shaped opening is fixedly connected to the surface of the turntable. The angle of elevation and depression of the atomizing nozzle can be changed continuously, so that the sprayingrange is increased, and the spraying efficiency is improved.
Owner:重庆市开州区宇海农业开发有限公司
Wall cement mortar spraying machine
InactiveCN111335598ASolve vertical transportationReduce labor intensityBuilding constructionsCement mortarMechanical engineering
The invention discloses a wall cement mortar spraying machine. The wall cement mortar spraying machine comprises an outer frame, a lifting mechanism, a transversely-moving mechanism and a mortar spraying mechanism. The top ends of vertical screws a1 on the two sides of the outer frame are sleeved with upper rotary seats a2 correspondingly, the upper rotary seats a2 are fixed to the two ends of a top beam correspondingly, and the top ends of fixing rear frames on the two sides and the corresponding upper rotary seats a2 are fixed together. Nuts at the two ends of a cross beam of the lifting mechanism are mounted on the outer sides of the corresponding vertical screws a1 in a threaded manner. Transversely-moving rollers of the transversely-moving mechanism are supported on the upper side ofa sliding cross beam and can transversely walk, and the transversely-moving mechanism is provided with a pipe clamping mechanism. In the wall cement mortar spraying machine, mortar is directly sprayedto the surface of a structure through a pump, the problem about vertical transportation of the mortar is solved, manual mortar transportation and physical labor such as lime spoon lime delivery, supporting plate lime receiving and trowel plastering are removed, thus, the labor intensity of workers is greatly reduced, the working efficiency is improved, and a far-reaching influence is brought to building construction and management.
Owner:郑州宏拓电子技术有限公司
Household solar water heating system thermal performance test platform
InactiveCN104833539AAvoid automatic tracking capture capabilitiesRealize the ability of automatic tracking and captureStructural/machines measurementTest efficiencyData acquisition
The invention belongs to the field of detection of the thermal performance of a solar water heater, and specifically relates to a household solar water heating system thermal performance test platform. The test platform comprises a rotatable pedestal and a control assembly which controls the rotatable pedestal to rotate at a specified speed, the rotatable pedestal is provided with a placing platform used for the placement of a solar water heater to be tested, the surface of a heat-collection plate of the solar water heater to be tested is arranged on the placing platform in an inclined manner, the rotatable pedestal is also provided with a planar mirror, the surface of the heat-collection plate of the solar water heater to be tested on the placing platform is arranged on the sunlight reflecting path of the planar mirror, and the test platform also comprises a data acquisition and processing assembly. According to the invention, a perfect basic hardware platform is provided for the detection of the system performance of a current household solar water heater, difficulty brought by traditional natural light tests is overcome, the test platform can adapt to the outdoor environment well, the test platform is suitable for testing a wide irradiation scope, and the testing efficiency is very high.
Owner:安徽省产品质量监督检验研究院 +2
Multifunctional plant protection operation vehicle for orchards
InactiveCN113115630ASpray evenlyChange pitch angleMeasurement devicesMowersFruit treeAgricultural engineering
The invention relates to the technical field of plant protection equipment, in particular to a multifunctional plant protection operation vehicle for orchards. The multifunctional plant protection operation vehicle for the orchards comprises a vehicle body frame, wherein a power system, a mowing system and a pesticide spraying system are arranged in the vehicle body frame, and the power system is arranged at the bottom of the vehicle body frame. The multifunctional plant protection operation vehicle for the orchards is characterized in that the pesticide spraying system comprises an atomizing head, the atomizing head is connected with the vehicle body frame through a swinging mechanism;, and the swinging structure is used for uniformly spraying the pesticide liquid onto the crowns of the fruit trees. According to the invention, a pesticide tank is arranged in the plant protection vehicle, the swinging structure comprises a lifting device and a crank driving mechanism, the lifting device is hinged to one side of the atomization head, and a crank driving mechanism is hinged to the tail of the atomizing head through a connecting rod. As the fruit trees are different in variety and different in size and different in height in different growth stages, the liquid pesticide can be sprayed uniformly only by continuously swinging the spray head up and down, and the effect of spraying the liquid pesticide by simulating hands is achieved.
Owner:邢台以利机械设备科技有限公司
Solar energy system
InactiveCN108519780AIncrease profitChange heightPhotovoltaic supportsControl using feedbackFour quadrantsIlluminance
The invention provides a solar energy system which comprises a sensor module, a clock chip, a driving module, a control module, a base, a rotary table connected in the base via a first turbine speed reducer, a pair of static supports, a movable support having a telescoping rod arranged on the linear bearing on the upper surface of the rotary table, a condensation battery plate having the front endpivoted to the pair of static supports and the rear end pivoted to the telescoping rod, and a straight pushing component arranged on the rotary table and connected with the push rod of the movable support, wherein a four-quadrant sensor transmits the detected position of the sun and the irradiation angle of the sunlight to the control module, an illuminance sensor transmits the detected sunlightintensity data to the control module, the first motor and the second motor of the driving module are controlled by the control module to work, and the azimuth angle and the pitching angle of the condensation battery plate are adjusted, so that the condensation battery plate is kept perpendicular to the sunlight all the time, and the solar energy conversion rate is improved.
Owner:ZHEJIANG IND & TRADE VACATIONAL COLLEGE
Tunable antenna of base station
PendingCN111342234AChange pitch angleEasy to coverAntenna supports/mountingsIndividually energised antenna arraysRadio frequency signalBase station
The invention discloses a tunable antenna of a base station. The tunable antenna comprises an antenna with a plurality of antenna arrays, a plurality of phase shifters, a remote control unit and a transmission mechanism; the plurality of phase shifters are respectively and correspondingly connected with the antenna arrays and are used for adjusting the phases of the radio frequency signals passingthrough the antenna arrays so as to change the pitch angles of the antenna beams; and the remote control unit and the transmission mechanism control the plurality of phase shifters, so that the phases of the radio frequency signals received or to be transmitted by the antenna arrays in the target direction of the wave beam are the same. According to the technical scheme of the invention, the pitch angle of the antenna beam can be remotely controlled and adjusted, so the wireless signal coverage of the cell is optimal, and the same-frequency and different-frequency interference of adjacent cells is minimized.
Owner:SHANGHAI NUFRONT ELECTRONICS TECH
A portable photovoltaic support
ActiveCN110635755BPrevent mutual disengagementChange pitch anglePhotovoltaic supportsSolar heating energyElectric machineryMaterials science
The invention provides a portable photovoltaic bracket, which belongs to the technical field of solar energy utilization. The bottom plate is divided into a front bottom plate and a rear bottom plate, both of which are long rectangular plate structures. The electric push rod is a four-section telescopic structure. The first section of the telescopic rod of the electric push rod is tangent to the lower surface of the bottom photovoltaic support. The left and right sides of the upper surface of the end are provided with bracket guide rails that cooperate with the bracket sliders, and the upper end of the bracket guide rails is provided with a limit block. The rear base plate is fixed, and the other end is fixed to the rear base plate through the second bearing seat. There are two sections of connecting rod guide rails on the rear base plate below the double-headed screw. The lower surface is provided with a chute matching the connecting rod guide rails. Both ends of the upper side of the bracket are equipped with connecting plates, and the two ends of the sliding rod with sliders are fixed with the photovoltaic bracket through the connecting plate. The uppermost photovoltaic bracket is equipped with a photoelectric detection device in the middle of the upper edge, and a controller is installed on the upper surface of the rear bottom plate. .
Owner:SOUTHWEST JIAOTONG UNIV
LED display screen unit and spliced LED display screen thereof
ActiveCN112696602AImprove adaptability and practicalityImprove flexibility and adaptabilityStands/trestlesIdentification meansMechanical engineeringOptics
The invention discloses an LED display screen unit and a spliced LED display screen thereof, relates to the technical field of display screen mounting racks, and solves the problems that the height and the pitching angle of an existing LED mounting rack cannot be adjusted after the existing LED mounting rack is fixed to a wall, and the height and the pitching angle can only be adjusted by re-mounting and re-dismounting the mounting rack. According to the LED display screen unit and the spliced LED display screen thereof, the LED display screen unit comprises an angle adjusting disc, and a vertical plate on one side of the angle adjusting disc is screwed and fixed in the middle of the back side of an LED splicing mounting plate through a screw. After the device is fixed, the LED splicing mounting plate can be driven to move up and down through an electric push rod to change the display height of the LED display screen in the LED splicing mounting plate, the pitching angle of the LED splicing mounting plate cannot be changed when the height of the LED splicing mounting plate is changed, and it is guaranteed that the LED display screen is always at the optimal display angle; and the display angle of the LED splicing mounting plate can be changed by rotating the adjusting rod, so that the LED display screen can display contents at different angles.
Owner:深圳中视创达光电有限公司
A field geographic information surveying and mapping equipment and its surveying method
ActiveCN112113091BReduced leveling timeReduce labor intensitySurveying instrumentsStands/trestlesSurvey instrumentEngineering
The invention discloses a field geographic information surveying and mapping equipment, which comprises a support platform, a main shaft hinged at the bottom of the support platform, and a surveying and mapping instrument adjustment mechanism fixed on the top of the support platform. The surveying and mapping instrument adjustment mechanism includes a fixed shaft for adjusting The height adjustment mechanism for the height of the surveying and mapping instrument, the direction adjustment mechanism for adjusting the surveying direction of the surveying and mapping instrument, and the pitch adjustment mechanism for adjusting the surveying and mapping angle of the surveying and mapping instrument, the fixed shaft is fixed on the direction adjustment mechanism, and the height adjustment mechanism is set on the direction adjustment mechanism , the pitch adjustment mechanism is set on the height adjustment mechanism, and the surveying and mapping instrument is set on the pitch adjustment mechanism. The beneficial effects of the present invention are: the support platform can be quickly and efficiently leveled, the surveying direction of the surveying and mapping instrument can be adjusted arbitrarily, the height of the surveying and mapping instrument can be adjusted conveniently, the pitch angle of the surveying and mapping instrument can be adjusted, and it can adapt to uneven ground.
Owner:敦少杰
Security and protection monitoring device
InactiveCN112565582AAvoid liftingIdeal effect is goodTelevision system detailsColor television detailsStructural engineeringReal-time computing
The invention relates to the technical field of security and protection, in particular to a security and protection monitoring device which comprises a base, a pitching structure, a lifting structure,a fixing structure, a rain shielding structure and a rotating structure, the pitching angle of the device can be better changed through the pitching structure, and therefore more monitoring view fields can be obtained, a wider view angle can be seen, an operator can adjust the device through the structure to achieve an ideal effect in some places which are too high or need certain angle limitation, the height of the device can be better adjusted through the lifting structure, the situation that in a narrow space, a camera cannot be lifted out due to too many objects, and the indoor situationcannot be observed is prevented, and the device can be better shielded to a certain extent through the fixing structure, so that the camera can be well protected when the device is not used, and dustis prevented from being attached to the camera.
Owner:朱佳甜
Light and thin integrated goods shelf display screen capable of being adjusted in multiple dimensions
InactiveCN113339643APlay a limit fixing effectChange locationStands/trestlesIdentification meansEngineeringStructural engineering
Owner:深圳市传光显示技术有限公司
A safe excavation and disaster early warning equipment and method for tunnels with high water head across the river
ActiveCN112627839BChange pitch angleEasy to moveMining devicesUnderground chambersCouplingArchitectural engineering
The invention discloses a safety excavation and disaster early warning equipment and method for a high-water-head tunnel crossing the river. It comprises a base, a fixed plate is installed at one end of the base, the fixed plate is rotatably connected to an adjustment seat, the other end of the base is hinged to a hydraulic rod, and the hydraulic rod is hinged to an adjustment seat. , A protective mechanism is installed between the base and the adjusting seat, a drilling rig is installed on the top of one end of the adjusting seat, the drilling rig is connected to a drill pipe, and the other end of the drill pipe is connected to a drill bit or a plugging head through a coupling. The hydraulic rod stretches, drives the adjusting seat to rotate along the fixed plate, and changes the pitch angle of the adjusting seat, so that the drill pipe drives the drill bit to drill along a predetermined angle, and the protection mechanism protects against accidental power failure to avoid equipment damage and personnel injury , when water gushing occurs in the borehole during drilling, the drill pipe drives the drill bit out, replaces the plugging head, and quickly pressurizes the borehole through the plugging head to inject grout, so that the mud penetrates into the gap on the inner wall of the borehole, thereby strengthening the plugging. Prevent and eliminate flood disasters.
Owner:核工业井巷建设集团有限公司
Spraying device with anti-solidification function for textile coloring
ActiveCN113529303AChange pitch angleGuaranteed stabilityTextile treatment machine arrangementsTextile treatment by spraying/projectingIndustrial engineeringTextile processing
The invention provides a spraying device with an anti-solidification function for textile coloring, and relates to the technical field of textile processing. The spraying device comprises a main pipe, a pumping and draining barrel and a pumping and draining plate; a liquid inlet is formed in the right end of the main pipe and communicates with a coloring liquid supply pipeline, and a liquid outlet is formed in the rear side of the left end of the main pipe; the left end and the right end of a supporting seat are connected with manual bolts correspondingly, and the main pipe is connected to the bottom of the supporting seat; the pumping and draining barrel is fixedly installed in the top of the supporting frame and located on the rear side of the main pipe; the pumping and draining plate is located in the pumping and draining barrel; and the front end of the supporting frame is fixedly connected with the main pipe. When a coloring solution in the main pipe stops flowing, a pneumatic part drives the pumping and draining plate to move rightwards, the coloring solution in the main pipe, the spraying pipe and a spraying part is pumped into the pumping and draining barrel, the pneumatic part drives the pumping and draining plate to move leftwards, and the coloring solution is drained through a liquid draining one-way valve, so that the situation that the coloring solution is solidified in the main pipe, the spraying pipe and the spraying part to affect the liquidity of the coloring solution is avoided.
Owner:江苏领智健康科技有限公司
Stroke drive mechanism for composite material forming equipment
The invention relates to the technical field of stroke drive mechanisms, in particular to a stroke drive mechanism for composite material forming equipment. The stroke drive mechanism comprises a revolution module, wherein the revolution module comprises a bottom plate I, gears II are arranged above the two ends of the top surface of the bottom plate I, and the inner walls of the gears II are fixedly connected to shaft rods II; a gear I is arranged between the two gears II, the inner wall of the gear I is fixedly connected to a shaft rod I, and the bottom end of the shaft rod I and the bottom end of one shaft rod II are rotationally connected to a rotating seat. According to the invention, through the arrangement of the revolution module and a lifting module, the output shaft can revolve under the driving of the revolution module while rotating, and can lift up and down under the driving of the lifting module, so that the output shaft can drive a stirring rod to fully mix and stir raw materials; through the arrangement of a slide block, the revolution radius of the output shaft in an output arm is changed to better adapt to a stirring container, the periphery of the inner wall of the stirring container is mixed, and dead angles are avoided.
Owner:NANJING XIAOZHUANG UNIV
Transmission device for efficiently collecting solar energy
ActiveCN112636676AChange pitch angleImprove collection efficiencyPhotovoltaic supportsPhotovoltaic energy generationThermodynamicsSolar energy harvesting
The invention relates to the field of photovoltaic power generation, and particularly provides a transmission device for efficiently collecting solar energy. The device comprises a frame module, a chassis module, a supporting rod module and a side supporting wheel module, and is characterized in that the frame module is used for fixing a photovoltaic panel in a frame; the chassis module is used for providing stable support for other modules; the supporting rod module is influenced by wind power, and the length or position of each supporting rod is changed, so that the wind power borne by the device is reduced; the side supporting wheel module is used for changing the side face supporting position along with change of wind power, and the stability of the supporting device is further improved. According to the device, the stability of the device in severe strong wind weather is improved through the matching relationship between the modules, so that the probability that a photovoltaic power generation device cannot continue to generate power due to rollover is reduced to a great extent, and the solar energy collection efficiency of the device is improved.
Owner:江苏锦尚新能源有限公司
Rotor unmanned aerial vehicle and endurance prolonging method of rotor unmanned aerial vehicle
InactiveCN113212745AExtended use timeExtend battery lifeCharging stationsElectric vehicle charging technologyElectric machineryAutomotive engineering
The invention provides a rotor unmanned aerial vehicle. The unmanned aerial vehicle comprises a rack, a battery and a control module, wherein the rack is provided with at least four paddle arms, the rotor unmanned aerial vehicle further comprises at least four paddle assemblies, and each paddle assembly comprises a charging and discharging motor, a rotating shell arranged on an output shaft of the charging and discharging motor in a sleeving mode and paddles; the paddle assembly further comprises a paddle changing assembly which is arranged in the rotating shell and drives the paddle to rotate around the center shaft. According to the rotor unmanned aerial vehicle provided by the invention, the pitch angles of the blades can be changed by the variable pitch assemblies, and in the descending process of the unmanned aerial vehicle, the blades can be always kept in a rotating state in the descending process by adjusting the pitch angles of the blades; and meanwhile, a working mode of the charging and discharging motor is switched along with the change of the pitch angle of the blades, and the discharging mode of the charging and discharging motor is switched into the charging mode through the control module, so the battery is reversely charged by utilizing the autonomous rotation of the blades in the descending process. The invention further provides a method for prolonging the endurance of the rotor unmanned aerial vehicle.
Owner:SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA +1
A led display unit and its spliced led display
ActiveCN112696602BBest display angleImprove adaptabilityStands/trestlesIdentification meansLED displayEngineering
Owner:深圳中视创达光电有限公司
Radar test mechanism and multifunctional radar test system
PendingCN113203995AFast and even adjustmentEasy to adjustWave based measurement systemsRadarAcoustics
The invention discloses a radar test mechanism and a multifunctional radar test system. The radar test mechanism comprises a substrate, a radar cover and a temperature adjusting assembly; the substrate is provided with a first side surface; the radar cover is suitable for covering at least one part of the first side surface so that a temperature testing space can be formed between the first side surface and the radar cover, and a radar to be tested is suitable for being installed in the temperature testing space; and the temperature adjusting assembly is installed on the substrate and is used for adjusting the environment temperature in the temperature testing space. The multifunctional radar test system can simulate the temperature environment in the real working process of the radar and test the working performance of the radar in a simulated temperature environment state; the multifunctional radar test system can also test the radar to be tested in a simulated vibration environment and an angle environment.
Owner:SHANGHAI VEI SHENG AUTO PARTS MFG CO LTD
A kind of sick and dead pig transporter and its operation method
Owner:SOUTH CHINA AGRI UNIV
A spraying device with anti-solidification function for textile coloring
ActiveCN113529303BChange pitch angleGuaranteed stabilityTextile treatment machine arrangementsTextile treatment by spraying/projectingEngineeringInjection device
Owner:江苏领智健康科技有限公司
Wind turbine temperature dependent noise reduction
InactiveCN110100091AGuaranteed operational safetySteps to reduce coolingWind motor controlMachines/enginesEngineeringControl theory
Owner:VESTAS WIND SYST AS
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