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81results about How to "High locking precision" patented technology
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Locking device and cradle head for same
ActiveCN104981644AHigh locking precisionQuickly adjust the gimbal center of gravityAircraft componentsStands/trestlesEngineeringMechanical engineering
Owner:SZ DJI OSMO TECH CO LTD
Anti-stealing electricity analysis method based on quantitative evaluation model sealing electricity suspicion analysis algorithm
InactiveCN107221927AHigh locking precisionImprove work efficiencyAc network circuit arrangementsElectricityLow voltage
The invention provides an anti-stealing electricity analysis method based on a quantitative evaluation model sealing electricity suspicion analysis algorithm. The anti-stealing electricity analysis method is characterized by comprising the following steps of S1, collecting basic data; S2, estimating a basic data state; S3, calculating loss line of a zone area; S4, calculating a stealing electricity suspicion level of each user in a month under the zone area by employing the quantitative evaluation model sealing electricity suspicion analysis algorithm; and S5, locking a suspicion stealing electricity user. The anti-stealing electricity analysis method has the beneficial effects that the locking accuracy of the stealing electricity user in a low-voltage power supply zone area is improved, the marketing management line loss level is reduced, so that the working efficiency of an audit department is improved.
Owner:JIANGSU TONGCHI POWER AUTOMATION
Small-size speed change control moment gyroscope
InactiveCN104075700AIncrease moment of inertia/mass ratioFirmly connectedRotary gyroscopesGyroscopeLow speed
The invention discloses a small-size speed change control moment gyroscope, and belongs to the technical field of control moment gyroscopes. The small-size speed change control moment gyroscope comprises a high-speed component, a connection bracket and a low-speed component, wherein the high-speed component supplies constant angular momentum in a control moment gyroscope mode and outputs fine moment required by whole satellite attitude control in a flywheel mode; the connection bracket is connected with the high-speed component and the low-speed component and guarantees the orthogonal perpendicularity between the angular momentum direction and the axial direction of a framework; the low-speed component supports the high-speed component and the connection bracket and supplies a mounting interface for a whole satellite; in the control moment gyroscope mode, large moment which is required by fastmoving of the whole satellite and is also orthogonal to the angular momentum direction and the axial direction of the framework is generated; in the flywheel mode, the fine moment output by the high-speed component is transmitted to the whole satellite for the attitude control. The speed change control moment gyroscope disclosed by the invention realizes the high-precision framework locking, the minimization, the light weight and the high rigidity, and is suitable for the application to small quick satellites.
Owner:BEIJING INST OF CONTROL ENG
Loss allocation suspicion analysis-based anti-electricity stealing analysis method
InactiveCN106066423AHigh locking precisionData processing applicationsElectrical measurementsElectricityPower user
The invention relates to a loss allocation suspicion analysis-based anti-electricity stealing analysis method. The loss allocation suspicion analysis-based anti-electricity stealing analysis method is put forward based on analysis on different line loss and power consumption anomaly and by means of suspected power consumption calculation. With the loss allocation suspicion analysis-based anti-electricity stealing analysis method adopted, the electricity stealing behaviors of users are ultimately reflected by the anomaly of measured power consumption of the users. The objective of the invention is to approximately calculate power consumption of the users in a transformer area which are not measured actually so as to determine suspected power users. According to the loss allocation suspicion analysis-based anti-electricity stealing analysis method of the invention, line loss calculation is divided into statistical line loss calculation, theoretical line loss calculation and management line loss calculation; and calculation methods of different lines are put forward; loss-counted power consumption abnormal conditions are calculated in different aspects; suspected power consumption is analyzed; suspected power consumption is compared and distinguished according to a plurality of power consumption abnormal conditions, so that the suspected power consumption of the users can be analyzed quantitatively; a specific power consumption suspicion degree method is put forward; the suspicion degrees of the users are calculated; thresholds are screened based on the suspicion degrees; required target users are filtered out; and an investigation list is formed.
Owner:SHANGHAI PROINVENT INFORMATION TECH
Double-closed loop locking technology-based resonant optical gyro
ActiveCN102353373AQuick responseHigh locking precisionSagnac effect gyrometersSpeed measurement using gyroscopic effectsClosed loop feedbackClosed loop
The invention discloses a double-closed loop locking technology-based resonant optical gyro. The double-closed loop locking technology-based resonant optical gyro comprises an optical system composed of a tunable laser, an optical shunt, two frequency shifters of a first frequency shifter and a second frequency shifter, two modulators, an optical resonant cavity and a photoelectric conversion module, and a processing circuit composed of a modulation-demodulation module and three feedback locking modules. Main components of the optical system comprise the tunable laser as a double-closed loop feedback terminal and the two frequency shifters. A first signal extracted by the modulation-demodulation module can respectively change frequency shift amounts of the tunable laser and the first frequency shifter through two of the threes feedback locking modules. A second signal extracted by the modulation-demodulation module can change a frequency shift amount of the second frequency shifter through another feedback locking module. A rotation signal is obtained according to the difference between frequency shift amounts of the first frequency shifter and the second frequency shifter. The double-closed loop locking technology-based resonant optical gyro has a completely reciprocal resonant optical gyro structure, and is beneficial for elimination of reciprocal noise of a system, improvement of system linearity, broadening of a system dynamic scope, and reduction of optical Kerr noise.
Owner:ZHEJIANG UNIV
Interlocking mechanism of jack box
InactiveCN102377144AHigh locking precisionImprove reliabilityTotally enclosed bus-bar installationsEngineeringLocking plate
The invention provides an interlocking mechanism of a jack box; the interlocking mechanism comprises a left locking plate, a right locking plate, a pin shaft, a rotating plate, a shaft sleeve, a gear and a closing plate, wherein the pin shaft is sequentially penetrated through the rotating plate, the shaft sleeve and the gear and is fixed on a shell of the jack box by the shaft sleeve; the pin shaft is fixedly connected with the rotating plate and the gear; the left locking plate and the right locking plate are respectively fixed on the closing plate by bolts; horizontal long holes are arranged on positions of the left locking plate and the right locking plate, which are provided with the bolts; a left pothook is arranged at the lower part of the left locking plate, and a left rack is arranged at the lower part of the left locking plate; a right pothook is arranged at the lower part of the right locking plate, and a right rack is arranged at the lower part of the right locking plate; when the left locking plate and the right locking plate are arranged on the closing plate, the left pothook and the right pothook are at the same height; when the closing plate is fixed on the sell of the jack box, the left rack and the right rack are respectively matched with the gear and are horizontally distributed above and under the gear; and the interlocking mechanism has the advantages of high locking precision, strong generality, high reliability and convenient operation.
Owner:JIANGSU RUNSHENG ELECTRIC
Lens bracket assembly and gimbal used therewith
ActiveUS20170099416A1Easy to adjustIncrease stiffnessTelevision system detailsColor television detailsEngineeringGimbal
The present invention discloses a lens bracket assembly for supporting an imaging device. The imaging device includes a body and a lens connected to the body. The lens bracket assembly includes a supporting plate and a bracket. The supporting plate is used for mounting the imaging device, and the supporting plate includes a first side. The bracket includes a supporting portion of which the shape matches the lens of the imaging device and a fixing portion connected with the supporting portion. The fixing portion is fixedly arranged at the first side. The supporting portion is used for supporting the lens. The present invention further relates to a gimbal that uses the lens bracket assembly.
Owner:SZ DJI OSMO TECH CO LTD
Locking device
InactiveCN104395666AReduce volumeEasy to assemble and disassembleStands/trestlesCamera body detailsMechanical engineering
The present invention discloses a locking device, which comprises a quick release plate and a slide assembly. The quick release plate slidably connected to the slide assembly. Said locking means further comprises a locking assembly, said locking assembly is connected to the sliding assembly and the quick release plate for the slide assembly relative to said lock. Locking means provided by the bulk of the present invention is small and easy assembly and disassembly.
Owner:SZ DJI OSMO TECH CO LTD
Method for locking LiNbO3 Mach-RPAMZM offset working point
InactiveCN103257463AImplement long-term lockHigh locking precisionNon-linear opticsModem devicePhotovoltaic detectors
The invention provides a method for locking a LiNbO3 Mach-RPAMZM off set working point. When a modem is not provided with radio-frequency signals, proper detecting voltage is added at the offset input end. A photoelectricity detector is used for detecting light intensity at the output end of the modem. The light intensity is input to the microprocessor as feedback signals. The microprocessor can calculate voltage corresponding to any phase position on a transfer function of the modem at present. In order to reduce influence of laser power fluctuation on the feedback signals, largest output light intensity of the modem is calibrated with a certain period. According to the method, no extra disturbance signals need adding, no extra noise can be caused, and any phase position point can be locked. Through selection of the proper testing voltage, the feedback signals are enabled to be influenced to a minimum degree by system noise. Locking precision can be greatly improved. The method is simple in device, convenient to operate, and high in stability. Moreover, the laser power fluctuation and light path consumption influence the system little.
Owner:TAIYUAN SHANDA YUGUANG TECHNOLOGICAL
Full-automatic screw locking and sheet riveting feeding machine used for wiring terminal of switch socket
ActiveCN105563084ARealize automatic feedingNo manual operationMetal working apparatusMetal sheetMetal
The invention relates to a full-automatic screw locking and sheet riveting feeding machine used for a wiring terminal of a switch socket. According to the full-automatic screw locking and sheet riveting feeding machine disclosed by the invention, a screw, a metal column and a metal sheet are separately conveyed to a screw turning mechanism through a screw feeding mechanism, a metal column feeding mechanism, a metal sheet feeding mechanism and a material conveying mechanism, and the metal column is screwed up with the screw, and then, the metal column screwed up with the screw is conveyed to a sheet riveting mechanism through the material conveying mechanism for sheet riveting, therefore automatic operation of automatic feeding, automatic screw turning, automatic sheet riveting and the like is realized, so the full-automatic screw locking and sheet riveting feeding machine disclosed by the invention is capable of realizing full-automatic operation from feeding to screw locking to sheet riveting to discharge in a whole process of feeding, screw locking and sheet riveting without manual operation, therefore manual labor is greatly saved, production cost is reduced, and production efficiency is greatly increased.
Owner:FOSHAN SHUNDE MEIZHIMEI APPLIANCE MFG CO LTD
Screw locking suction nozzle mechanism
ActiveCN103950008AAvoid swingingRealize elastic cushioning effectSpannersWrenchesOil freeEngineering
The invention relates to a screw locking suction nozzle mechanism. The upper end of the vacuum sleeve of the screw locking suction nozzle mechanism is connected with a butting screw, and the upper part of the vacuum sleeve is sealed by a sealing ring; a front head screw is assembled inside the vacuum sleeve, the position of the front head screw is adjusted up and down through an adjustable nut, and a spring is arranged in the vacuum sleeve; an oil-free bushing is arranged in the front head screw, a suction nozzle is mounted on the front head screw, and the suction nozzle is guided through the oil-free bushing; a screw screwdriver head is arranged in the position of the suction nozzle through the vacuum sleeve; a guide hole is formed in the vacuum sleeve, the screw screwdriver head passes through the guide hole, and the guide hole can be used for guiding. The screw locking suction nozzle mechanism is wide in universality, the screwdriver head has a guiding function, the height of the suction nozzle is adjustable, the functions of air suction, vacuum sealing, elastic buffering and the like are integrated, the adjustment is convenient, and screw locking can be performed in an automatic screw suction manner by changing the size of the butting screw and assembling the butting screw and a screwdriver into a whole no matter the screwdriver is a matched screwdriver or a bought screwdriver.
Owner:BOZHON PRECISION IND TECH CO LTD
High-power ultrashort-pulse optical frequency comb generation method based on self-similar amplifier
ActiveCN105428987ARealizing Optical Frequency CombsNarrow widthLaser detailsBandwidth limitationCarrier signal
The invention discloses a high-power ultrashort-pulse optical frequency comb generation method based on a self-similar amplifier. The high-power ultrashort-pulse optical frequency comb generation method is based on self-similar amplification technology and effectively overcomes gain narrowing, bandwidth limitation and nonlinear phase distortion in pulse amplification. A light spectrum is effectively expanded, and the bandwidth of an output pulse is reduced. Furthermore the power of a mode-locked pulse is effectively expanded, thereby acquiring a high-power femtosecond pulse and improving carrier envelope phase zero-frequency locking precision. Furthermore carrier envelope phase zero-frequency locking technology based on an acoustic-optical crystal frequency shifter is utilized, thereby realizing large reaction bandwidth and high control precision, and realizing a high-frequency high-power ultrashort-pulse optical frequency comb through real-time control. The high-power ultrashort-pulse optical frequency comb generation method is advantageous in that the high-power ultrashort-pulse optical frequency comb generation method can be directly expanded and applied on femtosecond optical frequency comb control technology for obtaining the stable high-frequency high-power ultrashort-pulse optical frequency comb.
Owner:CHONGQING HUAPU INFORMATION TECH CO LTD
Spatial observation optical remote sensing equipment very large diameter expansible primary mirror precision locking apparatus
InactiveCN101236288AAchieve stabilityReduce processing difficultyMountingsElectromagnetic wave reradiationThrust bearingEngineering
The invention discloses a precise locking device for a super-large caliber expandable primary mirror of an optical sensor for space observation, comprising a positioning device and a locking device, wherein the positioning device comprises a set of positioning blocks confining three free degrees, a set of positioning blocks confining two free degrees and a set of positioning blocks confining one free degree; each set of positioning block a positioning block fixed on a bracing structure of a middle mirror of the primary mirror and a sub-positioning block fixed on a bracing structure of a block mirror of the primary mirror. The locking device comprises a fixed spring nut, a front foundation, a spring, a locking nut, a rear foundation, a push bearing, a locking bolt, a decelerator and a stepper motor. The locking device of the precise locking device carries out positioning and locking separately so as to de-skill the processing and controlling difficulty, improves the precision of positioning and the stability of locking and realizes the nano-scale stability. The invention is also applicable to other large space expansion mechanism.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
High-precision phase-locked loop and phase locking method
InactiveCN104104385APrevent discreteAvoid Phase Transient SituationsPulse automatic controlPhase detectorDiscriminator
The invention discloses a high-precision phase-locked loop comprising a frequency discriminator, a phase discriminator, a voltage-controlled oscillation module and a digital processing module. An input signal is inputted from the input ends of the phase discriminator and the frequency discriminator respectively. The output end of the frequency discriminator is connected with the digital processing module. The output end of the phase discriminator is connected with the input end of the voltage-controlled oscillation module. The input end of the voltage-controlled oscillation module is connected with the input end of the digital processing module. The output end of the digital processing module is connected with the feedback end of the phase discriminator. Frequency of an output signal is configured according to frequency of the input signal. Besides, phase difference between the input signals is adjusted via changing frequency change direction of the output signal so that the output signal is enabled to be matched with the input signal and an objective of phase locking is achieved.
Owner:SUN YAT SEN UNIV
Scanning interference photoetching system
ActiveCN110837214AHigh locking precisionImprove laser utilizationPhotomechanical exposure apparatusMicrolithography exposure apparatusFirst lightExposure control
The invention belongs to the technical field of optical instruments and meters, and provides a scanning interference photoetching system, which comprises a heterodyne light path, a first interferencelight path, a second interference light path, a motion platform and a control subsystem, wherein the motion platform is used for bearing a substrate, the displacement of the motion platform is measured by a displacement measuring interferometer, and the first beam of light and the second beam of light are focused, interfered and exposed on the substrate; the control subsystem generates an instruction according to various measurement information, adjusts the angle of a corresponding device or the phase of a light beam, and completes locking of the phase drift of the interference exposure fringes of the first light beam and the second light beam. The scanning interference photoetching system disclosed by the invention has the advantages of high fringe pattern locking precision, high laser utilization rate and the like; a heterodyne phase meter is used for measuring the phase of an exposure light beam, a displacement measuring interferometer is used for measuring the motion error of a motion platform, the control subsystem is used for compensating and controlling exposure interference fringes, and the system can be used for manufacturing large-area high-precision dense grid line gradient periodic gratings.
Owner:TSINGHUA UNIV +1
Self-centering locking damping device suitable for vehicle-mounted photoelectric turntable
ActiveCN106678265AImprove stabilityImprove vibration damping abilityNon-rotating vibration suppressionStands/trestlesLocking mechanismEngineering
The invention relates to a self-centering locking damping device suitable for a vehicle-mounted photoelectric turntable. An electric locking mechanism part of the device comprises a locking seat and three groups of linear motor locking mechanisms same in configuration and peripherally and uniformly distributed and mounted on a lower absorber mounting seat; the locking seat is fixedly connected to the bottom of an upper connecting flange part, the three groups of linear motor locking mechanisms are arranged on the lower absorber mounting seat at intervals; the upper part of an absorber component is fixedly connected to the upper connecting flange part; when the turntable is in a working mode, locking taper pins of the three groups of linear motor locking mechanisms are respectively inserted into three taper holes of the locking seat, such that a turntable connecting flange is rigidly connected to the absorber mounting seat; when the turntable is in a conveying mode, the locking taper pins of the three groups of linear motor locking mechanisms are separated from the taper holes of the locking seat, such that the turntable connecting flange is separated from the absorber mounting seat. The self-centering locking damping device has two capacities of stabilizing a base and facilitating conveying, and is high in locking precision and reliable in locking.
Owner:CHANGCHUN TONGSHI PHOTOELECTRIC TECH CO LTD
Delay-locked loop adopting novel error lock detection circuit
InactiveCN105071799AEliminate Harmonic LockHigh locking precisionPulse automatic controlVIT signalsPhase detector
The invention discloses a delay-locked loop adopting a novel error lock detection circuit, comprising the error lock detection circuit, a phase detector, a charge pump, a low pass filter and a voltage control delay line. The error lock detection circuit detects all output phase clocks of the voltage control delay line, inputs a detection signal into the phase detector, and outputs a charge-discharge control signal to the charge pump. Through adoption of the delay-locked loop, the problem of harmonic wave locking of the conventional delay-locked loop in a broadband range is solved, the harmonic wave locking is eliminated, and a multiphase output of fixed time delay is provided.
Owner:SOUTHEAST UNIV
Laser frequency stabilization method and its device
InactiveCN1556562AHigh locking precisionHigh detection sensitivityLaser detailsNon-linear opticsOptoelectronicsLaser beams
The invention relates to a laser frequency stabilizing method and a device, especially is a dual-frequency modification ring cavity enhancing and modifying laser frequency stabilizing method and device, which belongs to accurate laser spectrum technology, accurate laser frequency stabilizing technology and accurate gauge standard technology field. The invention divides the laser beam into two orthogonal beams along the polarization direction through the polarization beam divider, one beam is used for the lock between the ring optical resonance cavity and the laser frequency, another beam is used to realize high accuracy lock between the laser frequency and the spectrum. The character of the laser frequency stabilizing device lies in: two radio frequency signals drive an electric-optic modifier to carry on dual-frequency modification to the laser beam, forms two independent servo control system, in order to realize the lock accuracy of the laser frequency.
Owner:EAST CHINA NORMAL UNIV
Method for quick locking of Bang-Bang digital phase-locked loop
ActiveCN104753525AAdjust the step size to decreaseHigh locking precisionPulse automatic controlBang bangPhase frequency detector
The present invention relates to a method for quick locking of a Bang-Bang digital phase-locked loop. The digital phase-locked loop comprises a quick locking controller, a proportion passageway, an integration passageway and an optional Sigma-Delta modulator for enhancing locking precision. Through the adoption of the method of the patent, the contradiction between high locking precision and long locking time of the Bang-Bang digital phase-locked loop is eliminated. Under the condition of not sacrificing the locking precision, the locking speed is greatly increased and the locking time is decreased. The quick locking of the Bang-Bang digital phase-locked loop is achieved in the frequency locking mode of multistage variable step length of automatically regulating step length, the factor of the proportion passageway and the factor of the integration passageway through the adoption of information, outputted by a BBPFD (Bang-Bang Phase Frequency Detector), for reflecting phase lead or lag between a reference clock and a feedback clock. The method of the patent can be realized through the adoption of software or hardware.
Owner:成都华大九天科技有限公司
Automatic three-lens switchover mechanism for vehicle-mounted self-adapting optical imaging telescope
The invention relates to an automatic three-lens switchover mechanism for a vehicle-mounted self-adapting optical imaging telescope and belongs to the technical field of optics. The mechanism solves the technical problems of complicated process, high cost, low rigidity, low transmission accuracy, inconvenience in operation, poor locking effect and influence on imaging quality of an optical system in the prior art. The automatic three-lens switchover mechanism comprises an angle encoder, a shaft system, a transmission mechanism and a locking mechanism, wherein the transmission mechanism is a moment motor; a rotor of the moment motor is in screw connection with a rotating shaft; a stator is in screw connection with a base; an unlocking linear motor is in screw connection with the base and is coaxial with a locking bolt; an unlocking pressure spring is located between the unlocking linear motor and the locking bolt; an unlocking photoelectric limit and a locking photoelectric limit are symmetrically connected onto the base of the unlocking linear motor; a limiting block sheet is located on an output shaft of the unlocking linear motor; the rotating shaft is sleeved with a code disk of the angle encoder; and a reading disk of the angle encoder is connected with the base via a connecting plate and a locking disc.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Automatic feeding type woodworking machine
ActiveCN110253682AImprove groove accuracyImprove securityFeeding devicesGripping devicesLocking mechanismPulp and paper industry
The invention relates to an automatic feeding type woodworking machine. The automatic feeding type woodworking machine comprises a sawing machine, locking mechanisms, a supporting vertical plate, a sliding seat, a rotating support, a supporting mechanism and a follow-up plate, wherein the locking mechanisms are connected to the left end and the right end of the sawing machine respectively, the follow-up plate is installed on the top of the locking mechanism located at the left end of the sawing machine, the supporting vertical plate is installed on the left end of the locking mechanism located at the right end of the sawing machine, and dovetail grooves are formed in the left side surface of the supporting vertical plate; and the right side surface of the sliding seat is connected with the dovetail grooves of the supporting vertical plate in a sliding fit manner, the sliding seat is of an L-shaped structure, the rotating support is arranged on the upper end surface of the middle of the sliding seat through a rotating shaft, and the supporting mechanism is arranged at the left end of the rotating support. According to the automatic feeding type woodworking machine, the problems that when the inclined grooves are formed in the existing wood, an inclined positioning plate cannot be intuitively adjusted, and the side surface of the wooden board is a non-smooth plane, so that when the wood slides along the positioning plate, the precision of the wooden board slotting is low, and the safety of holding wood by hand is poor can be solved.
Owner:珠海德驰科技有限公司
Phase noise compensative amplification system
The invention discloses a phase noise compensative amplification system, and the phase noise compensative amplification system comprises an oscillator (1) for outputting a seed light source, and the phase noise compensative amplification system is characterized in that the output end of the oscillator (1) is provided with an acoustic-optic frequency shifter (2) for outputting zero-order light (LO) and first-order light (L1) after processing the seed light source, wherein the output end of the first-order light (L1) of the acoustic-optic frequency shifter (2) is provided with a stretcher (3), the output end of the stretcher (3) is provided with a cascade amplifier (4), the output end of the cascade amplifier (4) is provided with a compressor (5), the output end of the compressor (5) is provided with a number one beam splitting sheet (BS1), the reflection light of the number one beam splitting sheet (BS1) is communicated with a compensative amplification system (12), and the compensative amplification system (12) is connected with the acoustic-optic frequency shifter (2) and supplies a control signal to the acoustic-optic frequency shifter (2).
Owner:广东华快光子科技有限公司
Coherent laser radar for improving detection range by adopting optical phase-lock technology
PendingCN110824493AImplement detectionPhase stableElectromagnetic wave reradiationPhase differenceMechanical engineering
The invention discloses a coherent laser radar for improving detection range by adopting an optical phase-lock technology. The coherent laser radar comprises a main laser device (space coupling), a tunable local oscillator laser, a receiving optical system, a 3dB coupler, a balanced detector, a frequency and phase discrimination module (PFD), a charge pump and a loop filter. A beat frequency signal is obtained after the laser emitted by the main laser device is interfered by an echo signal reflected by a target and local oscillator light, phase difference of two signals can be obtained after the beat frequency signal and a set reference signal are subjected to the frequency and phase discrimination module, the frequency of the local oscillator laser device is regulated and controlled through the corresponding control voltage produced by the loop filter, so that the beat frequency signal can be locked to the set reference signal phase, the beat frequency signal meets a condition of timedomain coherent accumulation, the extraction of the weak signal is more facilitated, and the detection range of the coherent laser radar is finally improved.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Rotating shaft locking device of transmission mechanism
ActiveCN105156451ASolve the automatic locking functionHigh locking reliabilityShaft for rotary movementMechanical energy handlingSelf lockingDrive motor
The invention discloses a rotating shaft locking device of a transmission mechanism. The rotating shaft locking device comprises a transmission locking device and a locking gear fixedly connected onto a rotating shaft of the transmission mechanism; the transmission locking device comprises a lead screw, a driving motor, a base, a locking block and guide rails which are parallelly fixed on the base; the two sides of the locking block sleeve the guide rails; one end of the locking block is provided with teeth meshed with the locking gear, and the other end of the locking block is connected with the driving motor which is fixed on the base through the lead screw; the driving motor drives the locking block to move along the guide rails to be meshed with the locking gear for locking or to be separated from the locking gear for unlocking through the lead screw; the driving motor is utilized for providing power for the locking block to ensure the insertion and the separation of the teeth; the automatic locking function of the rotating shaft is effectively solved; the locking force can be set by controlling the rotation speed of the driving motor and the backoff amount after locking; the maintenance of a locking load is realized through the self-locking ability of a screw-nut pair; the locking reliability is high; and the assembly is convenient.
Owner:NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
Gripper bar locking device and sheet processing device
ActiveCN108203010AEasy to adjustEasy to reachPlaten pressesMetal working apparatusEngineeringMechanical engineering
The invention discloses a gripper bar locking device and a sheet processing device. The gripper bar locking device is used for locking and adjusting a position of a gripper bar, and comprises a support plate, a lever part, a bracket and an adjusting device. The support plate is provided with a near end and a far end; a far end of the lever part can be pivotally arranged at the near end of the support plate; the bracket is movably arranged at a near end of the lever part; a gripper bar abutting part is arranged on the bracket; and the adjusting device is arranged on the bracket, and can be usedfor adjusting relative positions of the bracket and the lever part. In addition, the invention further relates to the sheet processing device comprising the gripper bar locking device. By adopting the gripper bar locking device provided by the invention, the position of the gripper bar can be more conveniently adjusted.
Owner:BOBST SHANGHAI
Electro-optical modulator operating point locking device and locking point detecting method with adaptive capability
InactiveCN110375778ABest working point lockHigh locking precisionProgramme controlComputer controlMicrocomputerOperating point
The invention discloses an electro-optical modulator operating point locking device and a locking point detecting method with adaptive capability. The electro-optical modulator operating point lockingdevice comprises an electro-optical modulator, a coupler, a sinusoidal signal generating circuit, an attenuator, an amplifier, a DAC (digital to analog converter), an adder, an optical detection circuit, a multiplier, a low-pass filter and a single chip microcomputer. The invention further discloses an electro-optical modulator operating point locking method with adaptive capability. Through detecting part of output light of the electro-optic modulator, the electro-optical modulator operating point locking device and the locking point detecting method realize the control over the bias voltageof the electro-optic modulator, and lock the operating point of the electro-optic modulator at the optimal operating point.
Owner:NANJING FAAIBO OPTOELECTRONICS TECH
Voltage type automatic gain control circuit
The invention discloses a voltage type automatic gain control circuit. The voltage type automatic gain control circuit comprises an amplitude sampler used for sampling a controlled signal and a reference voltage signal respectively, voltage followers which are connected with the amplitude sampler and are used for isolating the sampled controlled signal and the reference voltage signal respectively so as to obtain a stable voltage signal, alternating current resistors which are connected with the voltage followers and are used for calculating an average value of the stable controlled signal and the reference voltage signal respectively by utilizing the resistors, and a bias current source, wherein a bias terminal of the bias current source is connected with the alternating current resistors, and an output terminal of the bias current source is taken as an output terminal of the voltage type AGC (automatic gain control) circuit and is used for outputting control current by utilizing the average value of the stable controlled signal and the average value of the reference voltage signal as bias voltage. According to the voltage type AGC (automatic gain control) circuit of the invention, output current can be stabilized in a short time, and proper locking precision is maintained.
Owner:北京中科微投资管理有限责任公司
Lens bracket assembly and gimbal used therewith
ActiveUS10136038B2Easy to adjustIncrease stiffnessTelevision system detailsColor television detailsEngineeringGimbal
Owner:SZ DJI OSMO TECH CO LTD
Relay type intelligent charging system based on operation unmanned aerial vehicle
InactiveCN113086233AEasy to lockImprove stabilityCharging stationsAnchoring installationsElectric machineUncrewed vehicle
The invention discloses a relay type intelligent charging system based on an operation unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles, the relay type intelligent charging system comprises a base, a protective shell is arranged on the surface of the base, a steering motor is mounted on one side of the base, an accurate alignment device is mounted in the protective shell, an equipment table is mounted at the bottom of the accurate alignment device, and a take-off and landing table is arranged at the top of the equipment table; a charging device is installed in the take-off and landing table, the equipment table mainly comprises a sleeve, an annular rotating disc is installed on the edge of the top of the sleeve, a wire inlet hole and a control box are installed on the side face of the sleeve, all-directional adjustment can be conducted, the unmanned aerial vehicle can be rapidly locked to a set position, the preparation time is greatly shortened, and the unmanned aerial vehicle positioning precision is improved; and the relay type intelligent charging system is capable of effectively guaranteeing butt joint of the charging heads, capable of improving charging efficiency, capable of effectively conducting rainproof protection on the charging device and electrical elements, and capable of completely eradicating electric leakage and electrical element damage.
Owner:康彩云
Gate valve locking mechanism
PendingCN109114297AHigh precisionEasy to operatePreventing unauthorised/accidental actuationDrive shaftLocking mechanism
The invention discloses a gate valve locking mechanism. The gate valve locking mechanism comprises a base, a stepped through hole is formed in the middle of the base, a worm is arranged in the steppedthrough hole, a worm gear matched with the worm is arranged on the side face, a transmission shaft is arranged on the worm gear, limiting worms are arranged at the two ends of the transmission rod, and the base is provided with mechanical memories matched with the limiting worms; the base is further provided with a Bluetooth locking device; and the worm comprises a worm body which is of a hollowstructure, the worm body is provided with a locking hole of which the position corresponds to that of the Bluetooth locking device, an installing disc matched with the stepped through hole is arrangedunder the locking hole, and a valve rod connecting rod is arranged on the lower portion of the worm body. The gate valve locking mechanism has the characteristics that locking operation is convenient, and the locking position precision is improved.
Owner:STATE GRID CORP OF CHINA +3
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