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Automatic positioning clamping mechanism for feeding and discharging materials in bell-shaped shell defect-detection/cleaning integrated machine
ActiveCN102608201ASimple structureLow costGripping headsCleaning processes and apparatusEngineeringFour-slide
The invention relates to an automatic positioning clamping mechanism used for feeding and discharging materials in a bell-shaped shell defect-detection / cleaning integrated machine. The mechanism is characterized by fixing a pair of cylinder connecting plates on the top surface of an installing substrate; two pairs of, in other words, four sliding blocks in all, are configured on a straight line guide track at the lower part in front of the installing substrate; a clamping jaw is L-shaped; V-shaped chucks are arranged on the internal side surface at the front parts of a pair of clamping jaw horizontal arms respectively; four clamping jaws are fixed on the four sliding blocks through a perpendicular arm respectively; a cylinder is fixed on the cylinder connecting plate; a movable joint is fixed on a stretching end of a piston rod of the cylinder; the movable joint is U-shaped and the opening thereof faces downwards; each pair of connecting rods are matched in a U-shaped slot of the movable joint rotationally through a hinge pin; and the other ends of each pair of connecting rods are matched on a pair of clamping jaw perpendicular arms rotationally through screws. According to the mechanism, working pieces of different models can be positioned and clamped accurately without adjustment; the adjusting working quantity of the machine can be reduced greatly; the operation is sensitive and reliable; and the production efficiency can be improved greatly.
Owner:SHEYANG HUATONG DETECTOR EQUIP
Method for calibrating relation between rotating shaft and camera based on constraint global optimization
ActiveCN106228534AEasy to adjustEasy to useImage enhancementImage analysisDirection vectorOptical axis
The invention discloses a method for calibrating the relation between a rotating shaft and a camera based on constraint global optimization, and the method comprises the following steps: 1), calibrating internal parameters of a big-view-field camera and a to-be-calibrated camera; 2), taking a series of images of a calibration plate in a 360-degree rotation process of a rotating platform through employing the big-view-field camera; 3), obtaining a rotation matrix and transition matrix of the calibration plate to the coordinate system of the big-view-field camera and a rotation matrix and transition matrix of the calibration plate to the coordinate system of the camera through the images, obtained at step 2), of the calibration plate; 4), obtaining a rotation matrix and transition matrix of a rotary table calibration plate rotating at one place to the coordinate system of the big-view-field camera through the image, taken by the big-view-field camera at step 2), of the rotary table calibration plate, extracting the three-dimensional coordinates of at least two corners of the rotary table calibration plate in the series of images, calculating the circle center coordinates of the track of each corner in a rotating process, carrying out the fitting of the straight line where all circle centers are located, and obtaining the inclined angle between the rotating shaft and the optical axis of the camera according to a rotating shaft direction vector and a camera optical axis direction axis.
Owner:众趣(北京)科技有限公司
Search result providing method and device
InactiveCN104008170AMeets requirementsMeet needsSpecial data processing applicationsSearch wordsUser input
The invention provides a search result providing method and device. The search result providing method comprises the steps of receiving search words input by a user and obtaining search results according the search words; obtaining total points of the search results according to pre-determined optimal weight of each information dimension and score of each corresponding information dimension, wherein the optimal weights are confirmed according to results selected by the user from the search results in historical data and enable preset evaluation parameters to be optimal, and the evaluation parameters are used for search result evaluation; sorting the search results according to the total points of the search results and displaying the sorted search results for the user. The search results provided by adopting the search result providing method meets the demand of the user.
Owner:GUANGZHOU KINGSOFT NETWORK TECH
Underactuation crane operating whole process active-disturbance-rejection control method of single parameter adjustment
ActiveCN109911773AImprove work efficiencyAccurately control working timeLoad-engaging elementsUnderactuationControl system
The invention discloses an underactuation crane operating whole process active-disturbance-rejection control method of single parameter adjustment. The underactuation crane operation whole process active-disturbance-rejection control method is characterized in that according to starting and target locations of a trolley, safety constraint conditions such as the speed, acceleration, and operating environment of the trolley are considered, an ideal operating track, with efficiency priority, of the trolley is generated, and after compared with the actual location of the trolley, an error feedbackcontrol law of trolley movement is constructed; an expanding state observer is designed according to a crane load oscillation state equation, an error feedback control law suppressing load oscillation is constructed, and then the trolley operating track and a load oscillation active-disturbance-rejection controller which are independent of system model parameters and can effectively suppress disturbance are formed; and Hurwitz stable matrix eigenvalues are used for generating relation with control system gains, thus fussy control system parameters are adjusted and converted to single parameter adjustment easy to implement, a crane can be operated according to the set ideal track in the whole process under the uncertainty model parameters and external disturbance, and swing angles are madeas small as possible.
Owner:CENT SOUTH UNIV
Left and right prefastening parallel connection structure six-dimensional force sensor
InactiveCN101038221ASimple structureReduce adjustment workloadForce measurementEngineeringCompact form
The present invention discloses a left and right pre-compact type six dimensional force sensor with a parallel structure. The characteristics are: the left pre-compact platform (6) is a half-open type case component; the right pre-compact platform (2) which has a structure identical to that of the left pre-compact is symmetrical with the left pre-compact platform (6); the six detecting components (3) are divided into two groups that are distributed on the two sides of the stand board of the force measuring platform; the detecting component (3) and the middle power measuring platform (1) are sealed in a pre-compact form through connection bolts (4) and nuts (5) by the left and right pre-compact platform (6,2); the six detecting components (3) are connected to the force measuring platform (1) and the left and right pre-compact platform (6,2) through ball and socket steeple head type spherical pair. The structure of the sensor and the measuring principle are simple; the slot of each spherical pair is eliminated and the friction moment of each spherical pair is reduced and the nonlinearity and lag error are reduced; the device has a low cost and is easy to produce and to form precise and a series of products. The device can be used in the any occasions that need six dimensional forces detecting such as robots, aerospaceplanes, etc.
Owner:YANSHAN UNIV
Secondary network balancing method based on computer simulation adjustment
ActiveCN110244576AReduce adjustment workloadImprove regulation efficiencySimulator controlTraffic volumeComputer based
The invention discloses a secondary network balancing method based on computer simulation adjustment and belongs to the technical field of secondary networks of heat supply systems. According to the technical scheme, the method comprises the following steps: drawing a secondary pipe network plan of a heat supply system, determining the heat supply area of each entry branch, and establishing a secondary network system model; utilizing a hydraulic analysis system, and obtaining the flow of each pipe section and the ideal opening degree of a valve through hydraulic calculation; carrying out primary debugging of the valve, and achieving initial balance during cold state operation before heat supply; combining water return temperature of a system vertical pipe and the change of the room temperature at the heat supply initial stage to carry out heat state debugging of the valve so as to realize hydraulic balance. The method has the advantages that the balance method is used for solving the phenomenon of hydraulic imbalance of the secondary network of the heat supply system, the hydraulic working condition of the heat supply system is simulated through a computer, in combination with the valve flow characteristic curve, the opening degree of the valve is calculated, and then the hydraulic balance of the secondary network is realized according to the calculated opening degree of the valve.
Owner:大连海心信息工程有限公司
Analyzing the Method of Hanging Weighing Aircraft to Determine the Center of Gravity and the Compound Weighing Device
ActiveCN106507918BSimple weighing methodImprove efficiencySpecial purpose weighing apparatusAirplaneTilt sensor
The present invention proposes a method for determining the position of the center of gravity of an analytically hanging weighing aircraft and its compound weighing device. By using the compound analytical weighing method of the present invention in combination with the hanging weighing method and its compound weighing device, it is only necessary to One time of horizontal weighing and one time of hanging, the position of the center of gravity of the aircraft in three directions can be obtained. The present invention is achieved through the following technical solutions. Use the compound weighing device with three-dimensional adjustable three-point support to adjust the plane level, and pass the known coordinates of the front support and the rear support, through the pressure sensors of the front scale and the rear scale on the compound weighing device From the readings, the position of the center of gravity of the aircraft heading is calculated. Suspend the aircraft on the truss by a sling, install an inclination sensor between the sling and the rear support, and measure the relative angle between the axes of the above sling and the rear support in the pitch and yaw directions through the inclination sensor; according to "Aircraft Calculate the position of the center of gravity of the aircraft in the vertical direction and yaw direction by using the drawing method in the Design Manual.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP
Push-type high-efficiency and high-accuracy intelligent production scheduling algorithm and information recording medium
PendingCN111915139ASolving inefficienciesSolve the inefficiency of reschedulingResourcesManufacturing computing systemsStart timeManual handling
The invention discloses a push-type high-efficiency high-accuracy intelligent production scheduling algorithm and an information recording medium, and the algorithm comprises the following steps: (a),obtaining the production related information of a workpiece; (b) defining the states of K semi-finished workpieces; (c) according to the K states of different semi-finished workpieces; (d) judging whether the time is within the range of ST and EN of the corresponding finished product or not; (e) recording scheduling starting time; (f) performing semi-finished product production scheduling according to the starting time; (g) calculating plan end time; (h) judging whether the planned end time is within the range of ST and EN of the corresponding finished product or not; (i) if the steps (d) and(h) do not meet the manufacturing delivery time requirement, providing an alarm and suggestion; and (j) adjusting the scheduling parameters, and returning to the step (a). According to the invention,intelligent scheduling of production work orders is achieved, and the problems of low efficiency, slow period and the like caused by a large amount of manual operation can be reduced.
Owner:GUANGDONG KELON MOLD
Vacuum optical experiment system with extravehicular micro-adjusting mechanism
InactiveCN104699114AReduce the impactSmall external vibration effectOptical apparatus testingPosition/direction controlAir springMonochromator
The invention discloses a vacuum optical experiment system with an extravehicular micro-adjusting mechanism. According to the vacuum optical experiment system with the extravehicular micro-adjusting mechanism, a first support frame of an exhaust device and a second support frame of a vacuum chamber are arranged at the position corresponding to the vertical surface of a vibration isolation platform, and the exhaust device is placed at the upper end of the first support frame; the vacuum chamber is placed at the upper end of the second support frame; the vibration isolation platform is arranged on each air spring; the lower head face of each air spring is arranged on the ground; a cushion block and an extravehicular adjusting device are located on the vibration isolation platform; a light source and an ultraviolet monochromator are located on the corresponding cushion block; the air suction hole of each vacuum pump is connected with the corresponding exhaust holes of the exhaust device, vacuum pipe and vacuum chamber; the light source, exhaust device, ultraviolet monochromator, connecting apparatus and vacuum chamber connector is connected with the port of the corresponding vacuum pipe; the extravehicular connecting part of the extravehicular adjusting device is connected with the vibration isolation platform; the connecting end of a chamber inside connecting part is connected with the vacuum chamber through a corrugated pipe, a measured optical structure is connected with the chamber inside connecting part, and the measured optical structure is adjusted outside the vacuum chamber and moves in the vacuum chamber.
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
Vertical general assembly jig frame for container ship lashing bridge
ActiveCN105905261AReduce adjustment workloadSimple structureDry-dockingSlipwaysGeneral assemblyOn board
The invention relates to a vertical general assembly jig frame for a container ship lashing bridge. The vertical general assembly jig frame comprises a strip-shaped jig frame, a plurality of frame backers and a plurality of square tube fixing devices, wherein the strip-shaped jig frame is fixedly installed on a piece of embedded iron in a general assembly site; the plurality of frame backers are evenly distributed on the strip-shaped jig frame; each frame backer comprises two support rods and two connecting rods for connecting the two support rods, wherein the lower ends of the two support rods are fixedly installed at the upper end of the strip-shaped jig frame; each square tube fixing device is installed at the outer sides of the two corresponding support rods; the square tube fixing devices are used for fixing square tubes of the lashing bridge. The vertical general assembly jig frame is simple in structure, convenient in construction and short in general assembly period, and not only can greatly save the precious general assembly site, but also greatly reduces the on-board adjustment work load; furthermore, a turnover lifting lug is not needed during vertical general assembly, so that the strength of welding and grinding is greatly reduced; after the vertical general assembly jig frame is used, the process advancing aim of 'doing on-board operation after going ashore, and doing overhead operation at low altitude' is realized, the building period is shortened, and the working efficiency is increased.
Owner:CHINA SHIPPING IND JIANGSU
Method for reducing sludge in sewage treatment
InactiveCN103304036AEasy to controlNo secondary pollutionSustainable biological treatmentBiological water/sewage treatmentRetention timeTrace element
The invention provides a method for reducing sludge in sewage treatment, and the method is capable of greatly reducing the sludge quantity. The method comprises the following steps of: filling a biocarrier enriched with a plurality of trace elements for the growth of microbe in a sewage treatment main process, the DO changeable environment can be formed through the unique form of the biocarrier, the sludge retention time (SRT) is long, the variety is abundant, the food cycle is long, and the newly produced sludge is gradually re-degraded by a plurality of microbes to achieve the aim of reducing the sludge quantity. According to the method for reducing sludge in sewage treatment, the mud yield of the sewage treatment process is reduced to 0.1-0.15% from the 0.8-1% of the sewage quantity without adding an uncoupling agent and producing the secondary pollution; the microbe types and number can be conveniently controlled with obvious effect, and the application range is wide; the organic wastewater of municipal administration, garden, industry and life can be treated, the operation is stable, the water force and water quality change can be born, and the adjusting working quantity is small.
Owner:晓清环保科技股份有限公司
Frequency point regulating method and device
ActiveCN104333875AAdjust in timeReduce co-channel interferenceWireless communicationMicro cellWorkload
The invention discloses a frequency point regulating method and device and relates to the technical field of communication. The frequency point regulating method and device realize to duly regulate frequency points of a micro cell so as to lower the same frequency interference between a macro cell and the micro cell and reduce the workload for maintaining and configuring the frequency points of the micro cell. According to the technical scheme, the frequency point regulating method includes that confirming that frequency points of a served macro cell group are changed, wherein the macro cell group comprises at least one macro cell; acquiring the current frequency point set of the served macro cell group; selecting N frequency points from available frequency points of the micro cell according to the carrier number N of the micro cell, wherein the included times of the N frequency points in the current frequency point set of the macro cell group are increased in sequence in the available frequency points, and N is larger than or equal to 1; regulating the frequency points of the micro cell according to the selected N frequency points. The frequency point regulating method and device are used for regulating the frequency points of the micro cell.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD
Regulation method of press-bending and molding mold
InactiveCN101468375AShorten the debugging cycleReduce adjustment workloadShaping toolsEngineeringFlange
The invention discloses a method for adjusting a bending and molding mould. The mould comprises a concave mould and a convex mould; the convex mould is provided with a convex round angle; and the adjusting method comprises: measuring super-difference value produced by mould molding, according to the measured super-difference value, calculating curvature radius needed for correcting the super-difference value by the convex round angle of the convex mould, and adjusting the convex round angle of the convex mould so as to reach the needed curvature radius. Through the adjustment of the convex round angle of the convex mould, the method for adjusting the bending and molding mould adjusts the super-difference of boundary dimensions / flange faces of various bending parts, thereby substantially reducing the workload of adjustment and reducing materials, adjustment time and cost.
Owner:BYD CO LTD
Point welding machine capable of achieving precise positioning
ActiveCN105436685AImprove work efficiencyEasy to operateResistance electrode holdersNutationAngular degrees
The invention discloses a point welding machine capable of achieving precise positioning. The point welding machine comprises a cylindrical coordinate device and an euler angle positioning device. The cylindrical coordinate device comprises a disc base, an arc sliding block and a Z-axis scale rod. The euler angle positioning device comprises a precession angle positioning mechanism and a nutation angle positioning mechanism. The precession angle positioning mechanism comprises a precession angle chassis and a precession angle sliding block. The nutation angle positioning mechanism comprises a nutation angle chassis and a nutation angle sliding block. The point welding machine further comprises a welding arm, a point welding pen sliding block and a point welding pen. The phenomenon that a traditional point welding machine needs a standard for height measurement and a standard for angle measurement is changed, the operation steps are greatly simplified, the working efficiency is high, any point and the normal direction of the point inside the space curved surface of a product with the regular or complex appearance can be accurately positioned through the combination of the cylinder coordinate device and the euler angle positioning device, the precision is high, and the quality of the product is good.
Owner:QINZHOU UNIV
Method and device for adjusting altitude of assistant separator levers of double action clutch
InactiveCN101832344ASolve the problem of difficult height adjustmentReasonable designFriction clutchesClutchEngineering
The invention discloses a method and a device for adjusting the altitude of assistant separator levers of a double action clutch. In the method, three assistant separator levers of which the angle between every two levers is 120 DEG on the original pressure plate (2) of the clutch are made into an adjustable mechanism; when an assistant driven disc friction piece assembly (1) is worn, the altitude of the assistant separation lever (8) of the clutch can be adjusted without disassembling the clutch assembly, and meanwhile, the assistant separation lever (8) can also be locked repeatedly. The method comprises the steps of: 1, loosening a round locking nut (9); 2, rotating an adjustment threaded sleeve (10) so as to make a pull rod (4) move upwards, meanwhile, adjusting the altitude of the assistant separation lever by pulling the assistant separation lever (8) with the pull rod (4); and 3, when the three assistant separation levers are at the same height, tightening the round locking nut (9). The invention has the advantages of reasonable design, small workload for adjustment, easy maintenance for the clutch, low maintenance cost and simple, practicable and reliable structure, is suitable for the improvement of the double-action clutch assembly by low cost for improvement.
Owner:洛阳市南兴传动机械有限公司
Calibration method and calibration device of multi-shaft force sensor
ActiveCN110567639AEasy to adjustSame installation locationMeasurement of force componentsForce/torque/work measurement apparatus calibration/testingComponent LoadEngineering
The invention relates to a calibration method and calibration device of a multi-shaft force sensor. Decomposition of a force and torque is achieved by a loading plate, high-accuracy synergic loading of six component loads of the multi-shaft force sensor is finally achieved, and the calibration accuracy of the sensor is improved. All position gestures of the multi-shaft force sensor can be obtainedonly by seven laser displacement sensors, and the device is convenient and effective. A newly-installed multi-shaft force sensor can be rapidly adjusted to a designated reference each time when a newsensor is arranged, all installation positions of all arranged sensors can be enabled to be consistent, the calibration reference consistency is ensured, and the consistency of different batches of sensors is greatly improved. After the sensor is installed by employing the calibration method and the calibration device, the deformation of the sensor under effects of different loads can be monitored in real time during the calibration process, and the deformation is used as a technical parameter of the sensor and is provided for a user; and compared with a traditional means for estimation by afinite element theory, the parameter acquisition method has the advantages of more trueness and more accuracy.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS
Mounting structure and method of stone curtain wall on PC plate
InactiveCN104989014AImprove flatnessReduce adjustment workloadWallsBuilding material handlingThreaded pipeStructural engineering
The invention discloses a mounting structure of a stone curtain wall on a PC plate. The mounting structure comprises at least one horizontal beam. The horizontal beams are arranged on the PC plate in a formation mode. At least one inner thread pipe is arranged on the PC plate in advance. A bolt is arranged in each inner thread pipe. The horizontal beams and square pipes are fixed on the PC through the bolts. The mounting structure further comprises at least one hanging connecting piece component which is used for being connected with the horizontal beams and a stone plate. The invention further discloses a mounting method of the stone curtain wall on the PC plate. According to the mounting structure of the stone curtain wall on the PC plate, the self flatness of a PC plate block is improved, the flatness adjusting workload of the stone curtain wall is lowered, mounting work efficiency is improved, after a stone curtain wall vertical column is canceled, project cost is lowered, a building body additional load is lowered synchronously, a building cycle can be shortened well, on-site building dust pollution is lowered, and product quality can be controlled easily.
Owner:SHANGHAI LONGREN CONSTR GRP
CO2 heat pump device
ActiveCN109028628AMelting ice fastStable heating operationCompressorMechanical apparatusVapor–liquid separatorSolenoid valve
The invention discloses a CO2 heat pump device. The CO2 heat pump device comprises a compressor, a gas cooler, an oil heat exchanger, a first filter, a throttling device, an evaporator and a gas-liquid separator which are sequentially connected to a main heating circulation pipeline. The CO2 heat pump device further comprises an ice melting circulation pipeline, the compressor, a third filter, a second electromagnetic valve, the evaporator and the gas-liquid separator, wherein the compressor, the third filter, the second electromagnetic valve, the evaporator and the gas-liquid separator are connected to the ice melting circulation pipeline. When the bottom of the evaporator is frozen, the second electromagnetic valve is switched on, high-temperature and high-pressure CO2 gas enters an independent pipeline on the lower portion of the inside of the evaporator via the third filter and the second electromagnetic valve from an outlet of the compressor, an ice layer at the bottom of the evaporator can be molten, then generated heat CO2 steam returns to a gas return opening of the compressor via the gas-liquid separator, and thus ice melting circulation of the CO2 heat pump device can beformed. The CO2 heat pump device can operate at a low environment temperature, rapid ice melting can be achieved and heating operation of the system is made stable.
Owner:浙江盾安机电科技有限公司
Heavy-duty car dual-drive tandem testbed
The present invention discloses a heavy-duty car dual-drive tandem testbed. The heavy-duty car dual-drive tandem testbed comprises an integration drive head and four integration loading heads, the integration drive head comprises a driving head pedestal, a variable frequency drive motor, a speed reduction and twisting increasing transmission box and a system power input test mechanism. Each integration loading head comprise one loading head pedestal, one variable frequency loading motor, one speed raising and twist decreasing transmission box and one bridge single-way output power test mechanism, the two integration loading heads are symmetrically arranged at left and right sides of a tested medium bridge, the other two integration loading heads are symmetrically arranged at left and rightsides of a tested rear bridge, the tested medium bridge is connected with the tested rear bridge through a rear bridge input test mechanism, and the integration drive head is connected with a power input end of the tested medium bridge; and all the test mechanism comprise couplers, sensors and couplers which are connected in series in order. The heavy-duty car dual-drive tandem testbed can perform test verification of the medium bridge and the rear bridge at the same time, and is specially suitable for the heavy-duty car drive system test with an inter-axle differential between the medium bridge and the rear bridge; and moreover, the heavy-duty car dual-drive tandem testbed is a rack building block combination structure to facilitate rapid assembling and lapping and extend the applicationrange of the testbed.
Owner:CHINA AUTOMOTIVE ENG RES INST
Corner flue of CFB boiler and assembly process thereof
ActiveCN105258112AStable structureEasy to assembleFluidized bed combustionChimneysEngineeringProcess engineering
The invention provides a corner flue of a CFB boiler and an assembly process thereof. The corner flue of the CFB boiler comprises an L-shaped wall body, a box iron frame and locating steel parts. The L-shaped wall body is made of a membrane wall, a flue body is formed on the inner side of the wall body, the box iron frame is arranged on the inner side of the wall body and supports the wall body, the membrane wall is composed of airtight tube panels formed by welding flat steel and tubes in an assembling mode, and the locating steel parts are welded to the flat steel. The locating steel parts comprise a left locating steel plate and a right locating steel plate, wherein the left locating steel plate and the right locating steel plate are arranged on the two sides of the box iron frame respectively. According to the corner flue of the CFB boiler and the assembly process thereof, the box iron frame is arranged in the wall body, the locating steel parts are arranged on the two sides of the box iron frame, the left locating steel plate and the right locating steel plate of the locating steel parts fix the box iron frame in the vertical direction, and therefore the structure of the corner flue of the CFB boiler is more stable, assembly is convenient, the regulation workload of butt-joint installation on site can be reduced, and use is convenient.
Owner:JIANGSU GREENLEAVES BOILER
Belt-type hoister synchronization hoisting device
The invention discloses a belt-type hoister synchronization hoisting device. The belt-type hoister synchronization hoisting device comprises an upper frame, belt hoisting devices, a shaft coupler, a motor, a double-output speed reducer and a lower frame, and also comprises a shield and a guiding device. The belt hoisting devices are symmetrically installed at the upper side and the lower side of the double-output speed reducer. Each belt hoisting device comprises a driven belt wheel set, a left wheel base, a right wheel base, a belt, belt base bearings, a transmission shaft, a double-groove driving belt wheel, a belt joint, a belt connection base and a bolt. The guiding device comprises a guiding cylinder and a guiding post. The driven belt wheel set comprises a driven belt wheel, a groove-shaped nut and a screw shaft. The double-output speed reducer is connected with the transmission shaft through the shaft coupler. The double-groove driving belt wheel is installed between the two belt base bearings and is installed on the transmission shaft. The belt-type hoister synchronization hoisting device is simple in structure, is easy to adjust, has minimum adjustment workload, has good synchronization hoisting performances, and is safe and reliable.
Owner:HUANGSHI HUATIAN AUTOMATION EQUIP
Sludge reducing method in sewage treatment
InactiveCN105347463AEasy to controlNo secondary pollutionBiological water/sewage treatmentFood chainRetention time
The present invention provides a method capable of substantially reducing the sludge amount in sludge treatment. According to the method, the filler for filling the biological carrier in the sewage treatment main process is rich in a variety of trace elements for microorganism growth, the unique form of the biological carrier can form the DO changeable environment, the sludge retention time (SRT) is long, the variety is rich, the food chain is long, and the newly-generated sludge is progressively re-degraded by a variety of microorganisms so as to achieve the sludge reduction purpose. According to the present invention, the sludge generation amount of the sewage treatment process is reduced to 0.1-0.15% of the sewage amount from 0.8-1% of the sewage amount, the uncoupling agent adding is not required, no secondary pollution is generated, the variety and the quantity of the microorganisms can be easily controlled, the control is easy, the effect is significant, the application range is wide, the method can be used for treating municipal wastewater, park wastewater, industrial wastewater, domestic wastewater and other organic wastewater, the operating is stable, the changes of the hydropower and the water quality can be bore, and the adjust workload is low.
Owner:QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD
Receiver capable of automatically regulating and controlling twisted-pair line transmission video signal
InactiveCN101355677AReduce adjustment workloadImprove consistencyClosed circuit television systemsElectrical cable transmission adaptationControl signalComputer science
The invention discloses a receiver for automatically adjusting and controlling video signals transmitted by a twisted pair wire. The receiver comprises a balanced type input unit receiving balanced type video signals, a video signal amplifying unit making the amplifying processing of the balanced type video signals, an unit for the digitized processing of the balanced type video signals, a central processing unit which synchronously separates, analyzes and calculates the digitized signal data and then outputs the control signals, a high-frequency compensation unit for carrying out high-frequency compensation processing of the signals, a gain control unit for making the gain control processing of the signals and an output unit for outputting non-balanced type output video signals. The receiver has the advantages of being capable of automatically analyzing and calculating the outputted video signals, automatically adjusting and controlling the compensation mode and the compensation quantity of the signals, realizing the automatic setting of the twisted pair wire transmission video signal receiver, and improving the consistency of the output terminal signals in the multi-channle transmission.
Owner:汪艺鹰
Device capable of achieving precise angle cutting of profile
ActiveCN108044185APrecise positioningQuality assuranceMetal sawing devicesEngineeringMechanical engineering
The invention discloses a device capable of achieving precise angle cutting of a profile. The device comprises a base, a screw nut base, a screw, a following pressing plate, a cutting assembly and anangle positioning mechanism; the angle positioning mechanism comprises a pointer, a second rotating shaft, a fastening pressing plate, an angle scale and a connection support; the connection support is fixed to the base and is located on the left side of the following pressing plate, an upper horizontal plate and a lower horizontal plate which are parallel are arranged on the right side face of the connection support, and form a hinge base, a horizontal mounting base is arranged on the left side face of the fastening pressing plate and is hinged to the hinge base of the connection support, a locking bolt perpendicular to the upper horizontal plate is arranged on the upper horizontal plate, the fastening pressing plate is locked on the hinge base through the locking bolt, angle indexes arearranged on the angle scale, the angle scale is horizontally mounted on the fastening pressing plate, the lower end of the pointer is fixed to the connection support, and the upper end of the pointeris located above the angle scale. The cutting angle of the profile can be rapidly and precisely positioned, and an outer measuring tool is not needed.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Temporal-mandibular joint in-vitro simulation simulator
ActiveCN112700703AGuaranteed continuous outputStable outputEducational modelsPhysical medicine and rehabilitationControl signal
The present invention discloses a temporal-mandibular joint in-vitro simulation simulator comprises a simulation skull model, a skull fixing device, a three-dimensional space adjusting device, a control device and a transmission device. The control device is used for generating a control signal, the transmission device is used for transmitting power to the three-dimensional space adjusting device, and the three-dimensional space adjusting device is used for adjusting the position, so that the upper jawbone and the lower jawbone in the simulation skull model complete double-side linkage simulation opening and closing movement with the condyle process as the axis; and functional motion of temporomandibular joints can be fully simulated, and joint motion in physiological and various pathological states can be simulated by adjusting joint motion frequency.
Owner:SICHUAN UNIV
A Vacuum Optical Experimental System with a Fine-tuning Mechanism Outside the Cabin
InactiveCN104699114BSmall external vibration effectSmall overall deformationOptical apparatus testingPosition/direction controlVertical vibrationAir spring
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
Steel cap installation method
ActiveCN107620324AEasy to transportEasy to liftArtificial islandsUnderwater structuresMetallurgyImmersed tube
The invention relates to the technical field of immersed tube tunnels, in particular to a steel cap installation method. The installation method comprises the steps that a steel cap is divided into aplurality of sections, and the sections are hoisted from bottom to top in a left-right symmetrical mode; and the hoisted-in-place sectional steel caps are positioned and welded. According to the steelcap installation method, the steel cap is divided into the sections for being installed, so that the steel cap is conveniently transported and hoisted, and the construction difficulty is greatly reduced; the construction efficiency is improved, and the construction risk is also reduced; the sections are hoisted from bottom to top, the firstly-installed steel cap is conveniently positioned and adjusted, it is ensured that the steel cap has the high precision, so that the late-installed steel cap also has the good precision, and it is ensured that design requests are met after the steel cap iswholly hoisted; and meanwhile, the bottom plate section of the firstly-hoisted steel cap supports the sections of the late-hoisted steel cap, and the subsequently-installed sections are conveniently constructed.
Owner:THE SECOND ENG COMPANY OF CCCC FOURTH HARBOR ENG +3
Bolt assembly with adjustable single-and-double-ear connecting coaxiality
InactiveCN108253004AAchieve regulationAchieving adaptive adjustmentWashersScrewsEngineeringMechanical engineering
The invention aims at providing a bolt assembly with adjustable single-and-double-ear connecting coaxiality. The bolt assembly is characterized by comprising a twin-screw eccentric pin, two clearanceadjusting gaskets, two eccentric linings and two nuts. The double-screw eccentric pin is composed of a single-ear polished rod connecting shaft in the middle and bolt rods at the two ends. By means ofthe bolt assembly, connection assembly can be conveniently and rapidly achieved through adjustment of the assembly when hole heart deviation is generated in the connection process of a single-ear connector and a double-ear connector.
Owner:CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
Method of generating stereo image array of discrete view collection combined window intercept algorithm
ActiveCN103096113AHigh resolutionTrue representation of structural informationSteroscopic systemsRelative displacementViewpoints
The invention discloses a method of generating a stereo image array of a discrete view collection combined window intercept algorithm and belongs to the field of stereo image generation technology. The method comprises the following method: collecting a discrete viewpoint image array; calculating the position of a shot target in each discrete viewpoint image; calculating horizontal relative displacement of an intercept window in two arbitrary horizontal adjacent discrete viewpoint images in the discrete viewpoint image array, and vertical relative displacement of the intercept window in two arbitrary vertical adjacent discrete viewpoint images in the discrete viewpoint image array; calculating the size of the intercept window; calculating the position of the lower right corner of the intercept window in a first line and a first row of discrete viewpoint image of the discrete viewpoint image array; intercepting the discrete viewpoint image array to generate sub image arrays; and converting the sub image array into the stereo image array. The method is not limited by collecting equipment and can generate a high-definition stereo image array of actual scenery. Compared with a traditional camera array direct collecting method, the method can greatly reduce shooting cost and workload.
Owner:JILIN UNIV
Method for disassembling main shaft of vertical hydro-generator
ActiveCN111416485AReduced risk of collisionReduce adjustment workloadManufacturing dynamo-electric machinesMetal working apparatusWater turbineControl theory
The invention discloses a method for disassembling the main shaft of a vertical hydro-generator. The method comprises the following steps of: wedging a gap between a rotating wheel and a foundation ring by using a wedge block; integrally jacking a rotor and the rotating wheel to a certain height to enable the gap between the rotating wheel and the foundation ring to be greater than a flange connection seam allowance separation gap between a first lower flange and a first upper flange; disassembling a part of coupling bolts between the first upper flange and the first lower flange; installing arotating wheel lifter to make the rotating wheel lifter bear the weight of the rotating wheel; disassembling the rest coupling bolts; and stably lowering the rotating wheel onto the wedge block and ensuring that the flange connecting seam allowance between the first lower flange and the first upper flange is completely separated; and completing the separation of a water turbine main shaft from agenerator main shaft. According to the disassembling method, the wedge block is adopted to position the rotating wheel firstly, the original horizontal state of the rotating wheel is kept; the levelness and center of the rotating wheel are prevented from deviating severely; and therefore, the difficulty in a whole construction process is reduced.
Owner:HUNAN WULING POWER ENG
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