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142results about How to "Small adjustment range" patented technology
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Liquid crystal module testing device
ActiveCN103018934AJudging flicker valueSmall adjustment rangeStatic indicating devicesNon-linear opticsEngineeringVoltage control
The invention provides a liquid crystal module testing device. The liquid crystal module testing device comprises a lightening module, a flicker degree acquisition module, a voltage module and a control module, wherein the lightening module is used for being connected with a liquid crystal module to be tested, lightening the liquid crystal module, and providing a test picture for the liquid crystal module, the flicker degree acquisition module is used for acquiring the flicker degree of the liquid crystal module, the voltage module is used for being connected with the liquid crystal module to be tested and supplying voltage to the liquid crystal module, and the control module is connected with the flicker degree acquisition module and the voltage module respectively and used for controlling output voltage of the voltage module and receiving the flicker degree of the liquid crystal module, acquired by the flicker degree acquisition module, under corresponding voltage. According to the liquid crystal module testing device, the voltage of the liquid crystal module to be tested is controlled, the flicker degree acquisition module is used for acquiring the flicker degree of the liquid crystal module, and the flicker degree acquisition and voltage control are achieved through intelligent control, so that the best required set voltage value corresponding to the best flicker value of the liquid crystal module can be accurately judged.
Owner:BOE TECH GRP CO LTD +1
Adjustable bolt drilling machine fixture
InactiveCN107443125ANovel structureEasy to operatePositioning apparatusMetal-working holdersEngineeringScrew thread
The invention discloses an adjustable clamp for a bolt drilling machine, which comprises a base, a leg is arranged at the bottom of the base, an adjustment rod is threadedly connected to the bottom of the leg, a base is installed at the bottom of the adjustment rod, and the base The top is threaded with a connecting rod, the top of the connecting rod is threaded with a first support plate, the top of the first support plate is slidably connected with a guide block, the top of the guide block is provided with a second support plate, and the second support The top of the plate is slidably connected with splints, the top of both sides of the second support plate is provided with fixed blocks, the fixed blocks are penetrated with a screw rod, one end of the screw rod is provided with a rotating handle, and the other end of the screw rod is provided with a pressing plate , the pressing plate is set close to the splint, one side of the guide block is located on the first support plate and a limit block is provided, and an adjusting bolt is penetrated on the limit block. The present invention can be adjusted up and down, front and rear, and left and right to improve It improves the processing efficiency and has high practicability.
Owner:WUXI ZHIGURUITUO TECH SERVICE CO LTD
PID thermostatic adjustment control system for directly-heated air energy water heater
InactiveCN103148594ASmall fluctuations in temperature changesRaise the water temperatureFluid heatersProportion integration differentiationControl system
The invention discloses a PID (Proportion Integration Differentiation) thermostatic adjustment control system for a directly-heated air energy heater, which comprises a control host, a display slave and a valve control execution device, wherein the control host is connected with the display slave by an RS485 (Recommended Standard 485) serial communication interface; the valve control execution device comprises a power drive system, a stepping motor and a valve position detection plate that are sequentially connected by wires; and the control host is connected with the power drive system in the valve control execution device by the wire, and further connected with a data storage unit by a two-wire serial bus. The PID thermostatic adjustment control system for the directly-heated air energy water heater has the advantages that the PID thermostatic adjustment control system is simple in control mode, convenient to mount, and free from season and geographical position influences. Furthermore, the PID thermostatic adjustment control system makes outstanding contributions to energy conservation, environmental protection and the like.
Owner:XI'AN POLYTECHNIC UNIVERSITY
Energy storage container temperature control system and temperature control method
PendingCN110994060AGuaranteed operating storage temperatureReduce usageCells structural combinationTemperature controlElectrical battery
The invention provides an energy storage container temperature control system and a temperature control method. The temperature control system comprises an air inlet part, an air outlet part, a control part and an air duct part in a box body, and an external air inlet module and an air outlet of an air conditioner are jointly used as an air inlet part. The external air inlet module is composed ofa first electric shutter installed on the air inlet channel and a plurality of air inlet fans. An external air outlet module and an air inlet of each air conditioner jointly serve as an air outlet part, the external air inlet module is composed of a second electric shutter installed on an air outlet channel and a plurality of air outlet fans, an air outlet of each air conditioner is communicated with an air inlet of an air duct part, and an air inlet of each air conditioner is communicated with an air outlet of the air duct part. The system power consumption is greatly reduced while the battery operation storage temperature is ensured, the working efficiency of the energy storage system is effectively improved, and the product income is improved; and meanwhile, the air-conditioner utilization rate is reduced, and the air-conditioner service life is prolonged.
Owner:江苏安靠能源装备有限公司
Coaxial three-mirror zooming optical system based on photoisomerization materials
ActiveCN103777350AReduce complexitySave a lot of resourcesMirrorsPicture taking arrangementsExit pupilPhotoisomerization
Provided is a coaxial three-mirror zooming optical system based on photoisomerization materials. The coaxial three-mirror zooming optical system based on the photoisomerization materials comprises a primary mirror, a secondary mirror, a tertiary mirror and a caliber-variable diaphragm, wherein the caliber-variable diaphragm is located at a system exit pupil position in a short focal length mode, a system aperture diaphragm is arranged on the primary mirror, a classic R-C optical system is formed by the primary mirror and the secondary mirror, radiation light beams of a target scenery are converged by the primary mirror and the secondary mirror to form a middle real image, and the middle real image is imaged on the focal plane of the optical system through the tertiary mirror. According to the coaxial three-mirror zooming optical system based on the photoisomerization materials, the primary mirror, the secondary mirror and the tertiary mirror are made of the photoisomerization materials, changes of coefficients of aspheric surfaces of the mirrors are controlled through the material characteristics of the coaxial three-mirror zooming optical system in the zooming process of the coaxial three-mirror zooming optical system, and finally the coaxial three-mirror zooming optical system can have both the advantages of being large in focal length and high in resolution, and the advantages of being short in focal length and wide in field of view only through the changes of the coefficients of the aspheric surfaces of the mirrors and slight adjustment of the mirror spacing under the condition that the radii of curvature of all the mirrors of the optical system are unchanged.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Webbing adjustment device
ActiveUS10654442B2Small adjustment rangeComplicated operationSemi-passive restraint systemsBucklesRelative motionMechanical engineering
A webbing adjustment device has a cover, a frame, a slider, and a guiding ring member. The frame is up and down moveably disposed in the cover. The slider is located in the cover, is moveably disposed in a body of the frame, and has a through slot formed through the slider. Webbing inserted through the through slot is locked or unlocked by a relative motion between the frame and the slider. The guiding ring member is detachably disposed on the cover, and has a guiding ring and a positioning element connected to the guiding ring. The webbing is inserted through the guiding ring. The cover is detachably hung on the guiding ring. The webbing adjustment device can lock the webbing automatically by the tension of the webbing.
Owner:WANG LIANG HSIUNG
Traffic light detection method and device, electronic equipment and computer readable medium
ActiveCN110542931ASmall adjustment rangeSolve the problem that the status of traffic lights cannot be detectedInstruments for road network navigationOptical detectionThe InternetAutopilot
The invention provides a traffic light detection method and device, electronic equipment and a computer readable medium and belongs to the technical field of the Internet. The traffic light detectionmethod comprises steps that the current position information of a vehicle is detected in real time; if that the vehicle arrives at the preset intersection is determined according to the current position information, a traffic light detection module is started, and traffic lights at the preset intersection are detected based on deep learning; if the detection result of the traffic light detection module shows that no traffic light is detected, the angle information of the traffic light detection module is adjusted based on the step length of deep learning till the traffic light detection moduledetects the traffic light. The method is advantaged in that the angle information of the traffic light detection module is adjusted in time till the traffic light detection module detects the trafficlight according to the conditions of different traffic light intersections when the traffic light is not detected, and a problem that automatic driving equipment cannot detect a state of the trafficlight at some intersections is solved.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD
Movable assembling frame for assembled wall
ActiveCN112049434AQuick assemblyHigh fine-tuning precisionBuilding material handlingClassical mechanicsStructural engineering
The invention relates to an assembling tool for an assembled wall, in particular to a movable assembling frame for the assembled wall. The movable assembling frame for the assembled wall comprises a tackle, a supporting device, a lifting mechanism, a translation fine adjustment mechanism, a turnover adjusting mechanism and a feeding adjusting mechanism; a rail for the supporting device to slide isarranged on the tackle; the supporting device comprises a sliding base and a support, the support comprises a vertical frame and an adjusting frame connected with the vertical frame in an up-down sliding manner, and a positioning pin is arranged on the adjusting frame; the lifting mechanism is used for driving the adjusting frame to lift up and down; the translation fine adjustment mechanism is used for driving the adjusting frame to horizontally translate; the turnover adjusting mechanism is used for driving the adjusting frame to vertically turn over; and the feeding adjusting mechanism isused for driving the sliding base to feed on the tackle. The movable assembling frame has the beneficial effects of being convenient to transport, capable of effectively conducting assembly fine adjustment according to the situation of an assembled part, convenient to operate and the like.
Owner:徐优富
DC energy storage power-voltage regulation method
ActiveCN112491097AVoltage Accurate RegulationSmall adjustment rangeSingle network parallel feeding arrangementsAc network load balancingVoltage regulationVoltage droop
The invention discloses a direct-current energy storage power-voltage regulation method which comprises the steps of adopting the direct-current energy storage active-voltage control in a direct-current energy storage converter to obtain an output error signal e expression; establishing a direct-current energy storage active-voltage droop control equation according to the condition that an energystorage converter works in an inversion state, the condition that the energy storage converter works in a rectification state and an output active power equation of a direct-current energy storage converter; when a regulating voltage is positive, establishing an adaptive droop coefficient Dm1; when the regulating voltage is negative, establishing an adaptive droop coefficient Dm2; forming an adaptive droop coefficient Dm; and introducing the adaptive droop coefficient Dm into a DC energy storage active-voltage droop control equation to obtain an adaptive droop control mathematical expression.According to the present invention, the self-adaptive active voltage droop control is adopted, so that an energy storage voltage adjusting range can be reduced.
Owner:XIAN THERMAL POWER RES INST CO LTD
Test method for verifying opening and closing functions of cargo door
ActiveCN103552695AReduce trial riskEnsure safetyAircraft components testingTest articleAutomotive engineering
The invention belongs to the technical field of function test, and relates to a test method for verifying the opening and closing functions of a cargo door designed specific to the opening and closing function test of the cargo door. According to the method, the state of the cargo door during opening and closing function test can be accurately simulated; problems can be found and solved in time in a testing process, and smooth proceeding of the test is ensured; the test risk is lowered, and the safety of the test and test articles is ensured. A test method for verifying the opening and closing functions of the cargo door is realized, the accuracy of test verification is improved, the safety of test is ensured, the problem that the test state cannot be accurately simulated and problems cannot be found in the test process existing in the conventional method are solved, and smooth proceeding of the test is ensured by making adjustment in time.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Multi-parallel coexisting-cooperative-cognitive robot large-scale optical mirror surface machining device
ActiveCN108705410AAdjustable output forceSmall adjustment rangeOptical surface grinding machinesGrinding work supportsCognitive robotsMachining process
The invention discloses a multi-parallel coexisting-cooperative-cognitive robot large-scale optical mirror surface machining device. The machining device is characterized in that an L-shaped supporting frame is used for fixing and supporting two different parallel machining robots and a to-be-machined mirror surface, a mirror surface inner ring machining unit 4 is a 5 UPS + UPU type parallel machining robot, a mirror surface outer ring machining unit is a 4 UPS + PUU type parallel machining robot, an active partitioning flexible hydraulic supporting system is installed on a mirror surface rotary fixing unit, the supporting system serves as a flexible support of the to-be-machined mirror surface in the machining process, the output force of each supporting point is adjusted, and the opticalmirror surface is balanced in stress in the machining process. The machining device is small in size, high in rigidity, small in accumulative error, high in machining precision and capable of improving the machining efficiency of the optical mirror surface; and meanwhile, the rigid supporting system is improved, the output force of each supporting point can be adjusted, so that the optical mirrorsurface is balanced in stress in the machining process, and is not prone to be deformed or damaged, and the machining device is more suitable for machining complex curved surface optical mirror surfaces.
Owner:CHINA UNIV OF MINING & TECH
Method and circuit for dual PWM mixed cut wave control switch part
InactiveCN101150283AExpand the opening adjustment rangeOpen adjustment range is smallAC motor controlPower conversion systemsTurn off timeOff time
This invention relates to a method and a circuit for controlling switch devices by dual PWM mixed chopping, which utilizes a chopper control circuit to control on / off of a switch device IGBT, in which, the circuit includes two, and signals output by which control the same IGBT by an NAND gate, and the period of the output signals of the sub-PWM chopper control circuit is integer multiple of that of the master PWM and the least turned-off time of the sub-PWM is equal to a period of the output pulse control signal output by the master one, and pulse signals output by the master and sub-PWM operate on NOT AND logic operation to control on / off of the IGBT.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Radiation-emitting cable and a radiation-emitting element comprised therein
InactiveCN101164193AIncrease the tap factorReduce VSWRCoaxial cables/analogue cablesWaveguidesElectrical conductorCoaxial cable
The inventive radiation-emitting cable comprises a coaxial cable segment (1) and at least two radiation-emitting elements (5). Said radiation-emitting element is embodied in the form of an insert. The external conductor (4), dielectric layer (3) and the internal conductor of the coaxial cable segment (1) are provided with an opening which is embodied therein and used for tapping electromagnetic energy by means of said insert. The insert is made from an insulated wire segment whose one end is placed in the opening and the other end is arranged outside of the external conductor (4) of the coaxial cable segment (1) in such a way the electromagnetic energy is irradiated into environment .The electromagnetic energy tapping and irradiating device is embodied in the form of said radiation-emitting element (5).
Owner:VERITEL
Adjusting structure of refrigerator storage rack
PendingCN106766637ASmall adjustment rangeMany levels of adjustmentLighting and heating apparatusSupportMechanical engineeringEngineering
Owner:GUANGDONG GALANZ GRP CO LTD +1
Optical characteristic measuring system and application method thereof
ActiveCN108802754ASmall adjustment rangeMeet measurement needsElectromagnetic wave reradiationOptical propertyPhysics
The invention relates to an optical property measurement system and an application method thereof. The system comprises a measurement target, a detector and a controller, wherein the measuring targetand the detector are located in the same horizontal plane; the controller is used for receiving the measuring instruction, determining the target motion gesture of the measurement target and the target position information of the detector according to the target incidence angle and the target detection angle carried in the measurement instruction; controlling the measurement target to adjust the motion posture according to the target motion posture,; according to the target position information, the detector is controlled to move; the measurement target is used for adjusting the motion postureof the controller under the control; the detector is used for moving to a target position corresponding to the target position information under the control of the controller, and measuring the measurement target after the movement posture is adjusted at the target position. According to the scheme, the height adjustment range of the detector can be reduced, the space occupied by the optical property measurement system is reduced, and the construction cost of the optical property measuring system is reduced.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES
Adjusting method and system for primary side water flow of heat exchange station
InactiveCN110332604AAvoid frequent fluctuationsSmall adjustment rangeLighting and heating apparatusSpace heating and ventilation detailsTarget controlTraffic capacity
The invention discloses an adjusting method and system for primary side water flow of a heat exchange station, and belongs to the technical field of city and town centralized heating. The adjusting method includes the steps that the outdoor average temperature is obtained, and a secondary side target control temperature corresponding to the outdoor average temperature is searched for in a data comparison table of the outdoor average temperature and the secondary side target control temperature; and the secondary side target control temperature is compared with a secondary side actual supply and return water average temperature, and the primary side water flow is adjusted according to the comparative result. Due to the fact that the corresponding secondary side target control temperature atthe outdoor average temperature is used as a basis for adjusting the primary side water flow, the adjustment amplitude of the opening degree of a primary side electrically operated valve or the adjustment amplitude of the operating frequency of a primary side circulating pump is made small, and the phenomenon of frequent fluctuations of first-level network flow and transmission and distribution heat is avoided.
Owner:合肥瑞纳智能能源管理有限公司
Air bag type artery compression hemostasis control system and corollary equipment thereof
ActiveCN111481253AEasy to calculateImprove comfortPump testingSurgerySaturation oxygenPostoperative hypotension
The invention relates to an air bag type artery compression hemostasis control system and corollary equipment thereof. The air bag type artery compression hemostasis control system comprises a controlmodule, and the control module is connected with a sensor, a display interaction panel and an air pump used for inflating and deflating a compression hemostasis air bag; the sensor monitors the bloodpressure and oxygen saturation of a human body in real time and also monitors the pressure of an output pipeline of the air pump; and the display interaction panel comprises a display screen and keys. The system has the beneficial effects that radial and ulnar artery compression hemostasis and vital sign monitoring are integrated; the changes of blood pressure, oxyhemoglobin saturation and heartrate of a patient are monitored in real time, the compression strength of the compressor is dynamically adjusted according to the blood pressure, accurate and intelligent compression hemostasis is achieved, adverse events such as postoperative hypotension, maloperation reflex and syncope can be monitored, and various postoperative complications are effectively reduced.
Owner:刘夙璇 +1
Presser foot height adjusting mechanism for sewing machine
The invention provides a presser foot height adjusting mechanism for a sewing machine and belongs to the technical field of sewing machine manufacturing. The adjusting mechanism solves the problem that the height of a presser foot of an existing sewing machine is hard to adjust. The sewing machine comprises a machine head and a cylinder, wherein the cylinder is fixed in the machine head, the outer end of a piston rod of the cylinder is hinged to the top of a lifting lever, and the bottom of the lifting lever is connected with a presser foot through a lifting connecting rod, an intermittent lifting rod, a connecting plate and a pressing rod. The adjusting mechanism comprises a stitch length scaleplate and an adjusting shaft, wherein the stitch length scaleplate is located on the outer wall of the machine head and is connected with the lower middle portion of the lifting lever through the adjusting shaft, the lifting lever rotates around the adjusting shaft, and the presser foot can be driven to move up and down by rotating the stitch length scaleplate. The mechanism has the advantage that the height of the presser foot is convenient to adjust.
Owner:浙江长兴绿色电池科技有限公司
Movable control power supply for power plant or intelligent transformer substation and control method thereof
ActiveCN107345978AImprove dynamic performanceSafe steady state operationProgramme controlCurrent/voltage measurementVoltmeterEngineering
The invention provides a movable control power supply for a power plant or an intelligent transformer substation and a control method thereof, wherein the movable control power supply relates to the field of control technology for a power system. The control power supply comprises an AC input terminal, an AC switch, a monitoring module, a power supply module, an insulated monitoring device, an alarm device, a DC switch, a DC voltmeter, a DC ammeter, a current sensor, a voltage sensor and a DC output terminal. The monitoring module receives an instruction of an upper computer. A composite digital control mode in which fuzzy self-setting PI controlling and repeated controlling are combined is used for automatically adjusting input voltage. The control power supply outputs stable DC voltage. The insulated monitoring device automatically detects whether a DC output loop is grounded or insulation is complete. According to the movable control power supply, an integrated and modular structure is utilized; and functions such as digital intelligent monitoring, various protecting functions and insulation monitoring and alarming are performed; high convenience in field power supply inputting is realized; the dynamic performance of the power supply is effectively improved so that safe and stable operation of the power system with the movable control power supply is realized.
Owner:SHENYANG INST OF ENG
Spring steel sheet type variable-rigidity gripper assembly and gripper mechanism thereof
ActiveCN104290831AEven distribution of gripping forceImprove gripVehiclesSpring steelClimbing robots
The invention discloses a spring steel sheet type variable-rigidity gripper assembly and a gripper mechanism of the spring steel sheet type variable-rigidity gripper assembly. The spring steel sheet type variable-rigidity gripper assembly comprises a gripper body, an elastic connecting piece and a connecting frame. The gripper body is provided with grippers. The connecting frame comprises a gripper displacement fine adjusting part, and the gripper displacement fine adjusting part is connected with the gripper body through the elastic connecting piece. The elastic connecting piece is a series-connection elastic connection group and formed by connecting elastic pieces of different rigidities in series, the rigidities of all the elastic pieces in the series-connection elastic connection group change gradually, and the rigidity of the elastic pieces away from the gripper displacement fine adjusting part is larger than that of the elastic pieces adjacent to the gripper displacement fine adjusting part. It can thus be seen that the stability of grabbing of a climb robot can be improved greatly through the variable-rigidity character of the gripper assembly, and the spring steel sheet type variable-rigidity gripper assembly can provide larger grabbing force, be suitable for more complex working environments and have a wider application range.
Owner:NANJING UNIV OF POSTS & TELECOMM
Solar mobile underwater ozone treatment machine
ActiveCN105712467AOxygenated organic matterKill germsSludge treatment by oxidationGeneral water supply conservationUnderwaterBottom water
The invention relates to a solar mobile underwater ozone treatment machine. The solar mobile underwater ozone treatment machine comprises a solar power device, a water walking device, an ozone generation system and a self-rotating spraying device, wherein the ozone generation system is arranged on a floating body and is used for conveying ozone to the self-rotating spraying device at the front end through a gas delivery pipe; the self-rotating spraying device comprises a hollow telescopic pole, the telescopic pole is obliquely downwards hinged and fixed to the floating body through a hinge ring, a disturbance motor is arranged at the head part of the telescopic pole and drives a transmission shaft in the telescopic pole to rotate, the transmission shaft drives a rotary disturbance head at the lower end to rotate, and the rotary disturbance head and a gas channel in the telescopic pole are arranged coaxially; under the combined action of ozone gas and disturbance performed by blades of the rotary disturbance head on water in the underwater area, improvement work for bottom mud and bottom water is completed.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
Worktable of hair planting machine
ActiveCN104523002AAdjustable positionAchieve regulationBrush bodiesEngineeringMechanical engineering
The invention discloses a worktable of a hair planting machine. According to the technical scheme, the worktable of the hair planting machine is characterized in that a first rotary shaft penetrates through a clamp platform, the clamp platform is rotationally connected with a frame body through the first rotary shaft and provided with a first driving device used for driving the clamp platform to rotate around the first rotary shaft, a supporting plate is provided with a second driving device used for driving the frame body to rotate around a fixed shaft, provided with a third driving device used for driving the supporting plate to move axially along the fixed shaft, and provided with a lifting device used for driving the supporting plate to ascend and descend, and omni-directional adjustment of the clamp platform is realized through the first driving device, the second driving device, the third driving device and the lifting device. In this way, even though a brush head is complex in shape, holes in the brush head are located in different positions, the brush head is fixed to the clamp platform, hair planting operation is realized by adjusting the position of the clamp platform, work efficiency is high, a good hair planting effect of the complex brush head is realized, and practicability is high.
Owner:台州市鸿跃机械有限公司
Peak regulation energy storage device with carbon dioxide as working medium and control method thereof
ActiveCN110847988ARealize shifting peaks and filling valleysIncrease flexibilityHeat storage plantsEngine componentsProcess engineeringChemistry
The invention discloses a peak regulation energy storage device with carbon dioxide as a working medium and a control method thereof. The peak regulation energy storage device comprises an energy storage system and an energy release system. The energy storage system comprises a carbon dioxide energy storage cycle subsystem, a first energy storage subsystem and a second energy storage subsystem, wherein the carbon dioxide energy storage cycle subsystem is used for achieving the energy storage thermodynamic cycle of the carbon dioxide, the first energy storage subsystem is used for achieving basic energy storage of cold and heat, the second energy storage subsystem is used for achieving multistage storage of energy, and the energy release system comprises a carbon dioxide energy release cycle subsystem, a first energy release subsystem and a second energy release subsystem. The carbon dioxide energy release cycle subsystem is used for achieving the energy release thermodynamic cycle of the carbon dioxide, the first energy release subsystem is used for achieving basic energy release of cold and heat, and the second energy release subsystem is used for achieving multistage release of energy. Through the peak regulation energy storage device with the carbon dioxide as the working medium and the control method thereof, multistage energy storage and release can be achieved, and peak load shifting is conducted flexibly.
Owner:XI AN JIAOTONG UNIV
Stretch-bending straightener
InactiveCN102971096AEliminate longitudinal wavinessEliminate residual wavinessRoll mill control devicesMetal rolling arrangementsEngineeringStructural engineering
The invention relates to a method and stretch-bending straightener for straightening metal strips (1) by stretch-bending, comprising a plurality of straightening rolls (5a, 6a, 7a, 8a) which are arranged behind one another in the strip flow direction (D) and spaced from one another in the strip flow direction (D), wherein the strip (1) subject to tensile stress below the limit of elasticity is alternately bent around the straightening rolls (5a, 6a, 7a, 8a), undergoing plastic elongation, wherein a deflecting roll (5b, 6b, 7b) is arranged upstream of one or more straightening rolls (5a, 6a, 7a), respectively, wherein said straightening rolls can be adjusted relative to the strip (1) and wherein said deflecting roll has a larger diameter than the respective downstream straightening roll. Said method and said system are characterized in that, in order to vary the immersion depth, the straightening rolls (5a, 6a, 7a) can be adjusted relative to the associated deflecting roll (5b, 6b, 7a) such that the free strip length (F) between the run-off point (9) of the strip (1) from the deflecting roll to the run-on point (10) of the strip (1) onto the associated straightening roll does not exceed a predefined maximum value, above which longitudinal undulations of the strip form. The system is preferably designed such that, as the immersion depth and / or the angle of contact are varied, the free strip length never exceeds the maximum value over the entire adjusting range.
Owner:瑞戴克斯股份有限公司
Method for detecting optical performance of medical endoscope
ActiveCN110779692AImprove regulation efficiencySmall adjustment rangeTesting optical propertiesMedicineMechanical engineering
The invention discloses a method for detecting the optical performance of a medical endoscope. A medical hard tube endoscope (1) is fixedly clamped on a fixing device (3); a measuring mark plate (9) is fixed on a measuring mark mounting plate (66); and the medical hard tube endoscope (1) is horizontally arranged and the measuring mark mounting plate (66) is vertically arranged. The fixing device (3) is controlled to rotate anticlockwise and the measuring mark mounting plate (66) rotates clockwise simultaneously, wherein the rotation angle of the fixing device (3) is the same as that of the measuring mark mounting plate (66); and when the rotation angles of the fixing device (3) and the measuring mark mounting plate (66) are one half of a nominal visual angle, preliminary angle adjustment is completed. According to the invention, the system for detecting the optical performance of a medical endoscope has a simple structure and the adjustment requirement of the visual angle of 0 to 90 degrees is met by the operation; and the adjustment efficiency is improved.
Owner:ATTACHED OBSTETRICS & GYNECOLOGY OSPITAL MEDICALCOLLEGE ZHEJIANG UNIV +1
Gear-type fine tuning mechanism
InactiveCN102207184ALarge adjustment rangeSmall adjustment rangeGearingTheodolitesGear wheelBevel gear
The invention discloses a gear-type fine tuning mechanism which comprises an azimuth tuning device and an azimuth locking device which are connected through a swing rod; the azimuth tuning device comprises a reduction gearbox, a giggle screw, a giggle hand wheel, a gear shaft, a gear, a first bevel gear and a second bevel gear; the giggle hand wheel is connected with the reduction gearbox throughthe giggle screw; the reduction gearbox is connected with the second bevel gear; the first bevel gear and the second bevel gear are meshed mutually; the gear is connected with the first bevel gear through the gear shaft; the azimuth locking device comprises a locking hand wheel, a locking screw and a giggle switch; the locking hand wheel is connected with the locking screw; the locking screw is connected with the swing rod; the giggle switch is electrically connected with the swing rod. The invention discloses the gear-type fine tuning mechanism which has large regulation range, high regulation accuracy and high flexibility.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Preparation method of nickel-cobalt-manganese ternary precursor seed crystal
PendingCN113666434ASmall particle size distribution fluctuationsGood shape consistencyNickel compoundsManganeseSlurry
The invention discloses a preparation method of a nickel-cobalt-manganese ternary precursor seed crystal. The preparation method comprises the following steps: preparing a nickel-cobalt-manganese mixed salt solution, liquid caustic soda and an ammonia water solution; preparing a reaction base solution in a reaction kettle, and introducing N2; continuously introducing the nickel-cobalt-manganese mixed salt solution, the caustic soda liquid and the ammonia water solution into the reaction kettle respectively, and carrying out coprecipitation reaction; starting to overflow when the particle size D50 of the slurry generated by the coprecipitation reaction is 90-95% of the target particle size, stopping introducing N2 at the moment, and introducing oxygen into the residual slurry in the reaction kettle to oxidize Mn<2+> in the slurry into Mn<4+>; and stopping introducing oxygen when the slurry D00 in the reaction kettle is less than 1.0 mu m and the span d is greater than or equal to 0.9 to obtain the nickel-cobalt-manganese ternary precursor seed crystal. According to the method, Mn<2+> in the feed liquid is oxidized into Mn<4+> with smaller solubility product, the operation is simple, the pH value in the reaction process is stable, the balance between crystal nucleation and growth is easy to control, the particle size distribution fluctuation is small, and the morphology consistency of precursor particles is good.
Owner:格林爱科(荆门)新能源材料有限公司
Suspended railing device for medical curtain
A suspended slide track unit for the medical shielding purpose has a slide track with the sliding units which may be roller or hook. Said slide track installed to ceiling of room is composed of external and internal slide tracks. Said hooks for the perfusion bottle can slide along the internal track. Said rollers for cutain can slide along the external track.
Owner:张国强
Weekend train operation scheme modeling method considering passenger flow fluctuation and scheme coherence
ActiveCN111098896AReduce usageTake advantage ofData processing applicationsRailway traffic control systemsSimulationOperations research
The invention belongs to the field of intelligent transportation and particularly relates to a weekend train running scheme modeling method considering passenger flow fluctuation and scheme coherence.According to the method, a weekend train running scheme model for the weekend passenger flow peak period is established, an objective function is that the total train running cost is minimum, and thetotal cost is composed of running cost of a weekend scheme line and running cost of a normal-day scheme line, the train cost is composed of fixed cost, stop cost and motor train unit application cost, in order to control the sequence of train scheme adjustment means, corresponding penalty values are given to train on-station reconnection decompilation adjustment to be flexibly grouped train scheme lines) and scheme lines of alternative train sets at the weekend, and the adjustment means sequence of the train scheme lines is restrained through an objective function. The method is advantaged inthat transportation resource supply is recombined, so the quality of transportation products is efficiently improved, the diversity of passenger flow requirements is met, transportation resources arefully utilized, and quality improvement and efficiency improvement of transportation organizations are achieved.
Owner:BEIJING JIAOTONG UNIV
Rigid polyurethane foam culture stone and production method thereof
InactiveCN101649674ASmall adjustment rangeHigh closed cell rateCovering/liningsThermal insulationEngineering
The invention aims at the shortcomings that the current culture stones are heavy in weight, high in cost or poor in thermal insulation properties and have poor bondability with the building blocks, masonries and the like, are easily spalled, have short service lives and the like, and provides a rigid polyurethane foam (RPUF) culture stone and a production method thereof. The RPUF product with goodbondability, good thermal insulation property, light materials and long service life is obtained by improving the culture stone raw materials, production steps and technological conditions, which issuitable for the indoor and outdoor decoration in various environments.
Owner:宿迁特力新材料有限公司
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