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Wire feeding type aluminum alloy laser cladding method based on pre-laid reinforced particles
ActiveCN119287358AEnsure consistencyGuaranteed stabilityIncreasing energy efficiencyMetallic material coating processesAlloy substrateHigh wear resistance
The invention discloses a wire feeding type aluminum alloy laser cladding method based on pre-paved reinforced particles, which comprises the following steps: placing a rectangular mold on the surface of an aluminum alloy matrix, adding TiC particle powder, and scraping redundant powder by using a scraper; according to the method, the characteristic that the TIC powder is high in laser absorptivity is utilized, the TIC powder is flatly laid on the aluminum alloy matrix to reduce the laser reflectivity of the aluminum alloy, the consistency and stability of the coating in the cladding process are guaranteed through push-pull wire feeding, bubbles are reduced, and the laser cladding efficiency is improved. Good toughness and machinability of an aluminum alloy matrix are organically combined with high hardness and high wear resistance of a ceramic reinforced phase, meanwhile, an oxidation film on the surface of the aluminum alloy is broken by using swinging laser, the cladding coating is high in performance, ceramic particles are uniformly distributed, the processing method is simple and easy to implement, the high-performance aluminum alloy cladding coating is prepared, and the service life of the aluminum alloy cladding coating is prolonged. And the aluminum alloy surface wear resistance is obviously improved.
Owner:SUZHOU UNIV
Wheel, bogie and rail vehicle
The embodiment of the invention provides a wheel, a bogie and a railway vehicle. The wheel comprises a hub, a spoke and a wheel rim which are sequentially arranged from inside to outside. The hub and the wheel rim are made of a second type of metal; the spoke is made of a first type of metal alloy; an annular mounting groove or an annular convex part is arranged on the peripheral surface of the spoke; the density of the first metal alloy is smaller than that of the second metal; an annular mounting groove or an annular convex part is arranged on the inner circumferential surface of the wheel rim, the annular mounting groove and the annular convex part on the outer circumferential surface of the spoke correspond to the annular mounting groove and the annular convex part on the inner circumferential surface of the wheel rim, and the annular convex part is embedded into the annular mounting groove and used for axially limiting the spoke and the wheel rim. According to the wheel, the bogie and the railway vehicle provided by the embodiment of the invention, the problem of high difficulty in hot charging or press mounting of a traditional split type wheel can be solved, the weight of the wheel is relatively light, the lightweight design of the bogie is favorably realized, and the wheel rail noise is reduced.
Owner:CRRC TANGSHAN CO LTD
CEM connector, circuit board assembly and computing device
ActiveCN222365758UDifficult to solveReduce difficultySecuring/insulating coupling contact membersCoupling contact membersStructural engineeringMechanical engineering
The embodiment of the utility model provides a CEM connector, a circuit board assembly and computing equipment. The CEM connector includes a housing and two rows of conductive pins. The shell comprises a top, a bottom and a circuit board slot. The circuit board slot is provided with a plug-in port located at the top. And along the width direction of the circuit board slot, one row of conductive pins and the other row of conductive pins are arranged at intervals. The conductive pins comprise an inner pin and an outer pin. The inner pins face the circuit board slot. And the outer pin penetrates out of the bottom. The outer pin comprises a pin root part and a pin toe part. The pin toe part is connected to the end part of the pin root part away from the bottom part. In the width direction of the circuit board slot, the toe leading parts of one row of conductive pins and the toe leading parts of the other row of conductive pins extend oppositely. According to the CEM connector, the circuit board assembly and the computing device provided by the embodiment of the invention, the difficulty of arranging the CEM connector on the board edge of the circuit board can be reduced.
Owner:XFUSION DIGITAL TECH CO LTD
Method and device for evaluating stick-slip vibration of bottom drilling tool assembly and drill bit
PendingCN119358383AEasy to install and arrangeDifficult to solveSurveyDesign optimisation/simulationEvaluation resultNerve network
The invention discloses a method and a device for evaluating stick-slip vibration strength of a bottom drilling tool assembly and a drill bit, and belongs to the technical field of stick-slip vibration strength evaluation. The method comprises the following steps: acquiring radial or tangential acceleration data during stick-slip vibration; performing data processing on the obtained radial or tangential acceleration data of the stick-slip vibration during the stick-slip vibration to obtain a characteristic value of the radial or tangential acceleration of the stick-slip vibration; predicting a stick-slip index by taking the obtained radial or tangential acceleration characteristic value of the stick-slip vibration as an input value of a pre-trained stick-slip index prediction neural network model; the invention further provides an evaluation device based on the evaluation method, rotation speed data does not need to be detected, the radial or tangential acceleration data during stick-slip vibration can be actually measured only through a single acceleration sensor, and the single acceleration sensor is easy and convenient to install and arrange and high in reliability. The problem that it is difficult to install a plurality of sensors on a shaft bottom drilling tool can be avoided, and the evaluation result is accurate.
Owner:YANGTZE UNIVERSITY
Riding wheel reshipment device for car dumper
The utility model discloses a tippler riding wheel transfer device, which relates to the technical field of tippler, and comprises a riding wheel main body and a placement plate, a position control shaft is arranged on the inner wall of the placement plate, a power swing rod is arranged on the outer circumferential surface of the position control shaft, a linkage moving plate is arranged at one end of the power swing rod, and a positioning structure is arranged at one end of the linkage moving plate. A guide rail is arranged on one side of the placement plate, and a position control sliding block is arranged on the outer wall of the guide rail. Through the arrangement of the placement plate, the position control shaft, the power swing rod, the linkage moving plate, the position control clamping plate, the mounting sliding plate, the position control sliding block, a guide rail, a threaded flat plate and a limiting bolt, the effect of conveniently transferring the riding wheel main body can be effectively achieved, and the problem that the riding wheel main body is difficult to assemble and disassemble due to the fact that the riding wheel main body is heavy and inconvenient to move is solved; and the riding wheel main body can be moved out of a working position and transported to a designated area during maintenance, replacement or overhaul.
Owner:SDIC ZHONGMEI TONGMEI JINGTANG PORT CO LTD
Assembling structure and assembling method of battery cell and insulating sheet
PendingCN119651083AImprove assembly accuracyImprove the safety of useSecondary cells manufactureCell component detailsElectrical batteryMechanical engineering
The invention discloses an assembly structure and an assembly method of a battery cell and an insulating strip, and the assembly structure of the battery cell and the insulating strip comprises the insulating strip which is provided with a first end face, a second end face and a first through hole extending from the first end face to the second end face; the first end surface of the insulating sheet is arranged on the end surface of the electrode end of the battery cell; one end of the tab is arranged on the end face of the electrode end of the battery cell, the other end of the tab is far away from the battery cell, and the tab penetrates through the first through hole; the coating material fixes the insulating sheet on the electrode end of the battery cell, the coating material comprises a first part and a second part, the first part is arranged on the outer peripheral surface of the electrode end of the battery cell, the second part is arranged on the second end surface, and the first part is arranged on the outer peripheral surface of the electrode end of the battery cell. According to the assembly structure of the battery cell and the insulating sheet, the battery cell and the insulating sheet are fixed together, so that the safety of a battery product is improved.
Owner:ZHUHAI HIGRAND ELECTRONICS TECH
Efficient salt dissolving box for chlorine production system
ActiveCN222624201Ueffective dissolutionDifficult to solveElectrolysis componentsTransportation and packagingChlorine productionAqueous solution
The utility model relates to the technical field of electrolysis systems, in particular to a high-efficiency salt dissolving box for a chlorine production system, which comprises a high-efficiency salt dissolving box, an overflow port is arranged on one side of the high-efficiency salt dissolving box, an emptying port is arranged below the overflow port, a water inlet is arranged on the other side of the high-efficiency salt dissolving box, and a water outlet is arranged below the emptying port. A salt dissolving device is arranged in the efficient salt dissolving box, a liquid outlet is formed in the front end of the efficient salt dissolving box, an exhaust port and a salt adding port are formed in the top of the efficient salt dissolving box, and the salt dissolving device comprises a salt dissolving plate and a salt dissolving funnel. The device is simple in structure and low in use cost, solid salt can be efficiently dissolved, a dilute saline solution with proper concentration is provided for an electrolysis system, and a large amount of manpower and material resources are saved.
Owner:WUHAN XINGDA TECH ENG
Assembling machine control method and system capable of synchronously assembling segments during shield tunneling
The present invention relates to a control method and system for an assembling machine capable of synchronously assembling pipe segments during shield advancement. The method comprises the following steps: in the process of shield advancement, the assembling machine is used to grab the pipe segment to be assembled and rotate it into place; the pitch angle of the shield machine is obtained in real time; the dynamic target rear chamber pressure value of the translation cylinder of the assembling machine is calculated and the rear chamber pressure of the translation cylinder is controlled and adjusted; the pipe segment to be assembled grabbed by the assembling machine is pressed against the assembled pipe segment; the propulsion cylinder is pushed against the pipe segment to be assembled, and the translation cylinder of the assembling machine is depressurized; the pipe segment to be assembled is connected with the assembled pipe segment, thereby completing the assembly of a pipe segment, and then the assembling machine is used to grab the next pipe segment to be assembled and repeat the above steps to complete the assembly of the pipe segment. The present invention uses the rear chamber pressure of the translation cylinder to balance the adverse effects of the pitch attitude of the shield machine on the assembly of the pipe segments, ensuring the smooth assembly of the pipe segments and the quality of the assembly of the pipe segments.
Owner:SHANGHAI TUNNEL ENG CO LTD +1
Blood pressure detection device with blood vessel positioning function and blood vessel positioning method
PendingCN121987243AReal-time visualizationprecise alignmentBlood flow measurement devicesInfrasonic diagnosticsBlood flowOperating theatres
The invention discloses a blood pressure detection device with a blood vessel positioning function and a blood vessel positioning method, and belongs to the technical field of medical detection equipment. The ultrasonic blood pressure detection cuff comprises a cuff body, an air bag and a Doppler blood flow detection module, the Doppler blood flow detection module comprises a position adjusting module and an ultrasonic sensor, the track direction of the position adjusting module is consistent with the winding direction of the cuff, and accurate positioning of the sensor can be achieved. Blood flow signals are detected through the Doppler ultrasonic technology, and the blood pressure can be measured more accurately in combination with the air bag pressurization and decompression process. The system can be widely applied to the scenes of family medical treatment, clinical diagnosis, ICU, operating rooms and the like.
Owner:SHENZHEN HUAZHIKANG ELECTRONICS
Primer and method for rapidly detecting sex of juvenile grass carp
ActiveCN119410764ADifficult to solverapid identificationMicrobiological testing/measurementClimate change adaptationZooidJuvenile fish
The invention provides a primer and a method for rapidly detecting the sex of juvenile grass carp, and relates to the technical field of biological detection. The method for rapidly detecting the sex of the juvenile grass carps specifically comprises the following steps: step 1, sample acquisition: acquiring a plurality of grass carps, determining male and female individuals in a gonad form, respectively extracting tissue samples from the male and female individuals, and preserving the tissue samples at low temperature; step 2, extracting the total DNA of the sample to be detected: extracting muscular tissue genome DNA of the three female fishes and the three male fishes by using a TIANAmp Marine Animal DNA kit, measuring the concentration of the DNA and the ratio of OD260 / OD280 by using a NanoDrop2000 ultramicro spectrophotometer, and detecting the integrity of the DNA by using 1.0% agarose electrophoresis; and step 3, primer detection. The primer and the detection method provided by the invention can avoid the problems that the difficulty of taking the gonad in conventional fish killing is relatively large, the taken gonad also needs to be subjected to paraffin section to identify the sex, and the process is tedious, and realize that the sex of the grass carp fries can be identified only through one-time PCR amplification and agarose gel electrophoresis detection.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Angle-adjustable rotating head and handheld saw thereof
ActiveCN222424804UDifficult to solveImprove pruning efficiencyCutting implementsCuttersMechanical engineering
The utility model relates to an angle-adjustable rotating head and a handheld saw thereof. The angle-adjustable rotating head comprises a handheld main body and a driving main body, and a first clamping piece is arranged in the arc groove of the handheld main body. The driving body comprises a driving shell, a power source and a second clamping piece. A through groove is formed in the side, close to the handheld body, of the driving shell. The second clamping piece comprises a pressing part and a movable clamping part, the pressing part can press and move relative to the driving shell, the movable clamping part is arranged at the through groove, and the pressing part can drive the movable clamping part to move, so that the movable clamping part is not clamped with the first clamping piece, and the driving body can rotate relative to the arc groove; the rotation angle of the driving body is adjusted. The problems that when an existing handheld saw is used for cutting branches with unsatisfactory angles, the operation difficulty is large, so that the pruning effect of the existing handheld saw on the branches is poor, and the pruning efficiency is reduced are solved. The angle of the handheld saw cutting main body can be adjusted according to requirements, the operation difficulty can be reduced, the trimming effect is better, and the trimming efficiency is improved.
Owner:袁浩
Preparation method of cis-platinum acylating chloride modified blood purification filter membrane and corresponding purification membrane
ActiveCN119607893AImprove grafting efficiencyDifficult to solveMembranesProcess control/regulationAnticarcinogenic EffectMetabolite
The invention discloses a preparation method of a cis-platinum acylating chloride modified blood purification filter membrane and a corresponding purification membrane, and belongs to the technical field of medicines. The inventor of the application finds a blood purification membrane which can provide a blood purification effect and can also achieve an anti-cancer effect through administration of anti-cancer drugs through a large number of experiments and explorations. The cis-platinum can be effectively combined with the blood purification membrane, the cis-platinum is released from the blood purification filter membrane after being in contact with blood, the cis-platinum reaches cancer cells along with the blood to achieve the anti-cancer effect, meanwhile, the blood purification membrane can also remove metabolites generated in the anti-cancer process, and the anti-cancer effect is achieved. According to the preparation method and the corresponding purification membrane, the binding rate of cis-platinum and polyether sulfone can be increased, and the preparation yield is increased. The cis-platinum acylating chloride modified blood purification membrane prepared by a chemical grafting method has the effect of slowly releasing cis-platinum, and is particularly suitable for blood purification treatment of tumor patients.
Owner:HUNAN PROVINCIAL PEOPLES HOSPITAL
System and method for treating solid waste
ActiveCN111156518BUniform heating surfaceDifficult to solveIncinerator apparatusCold airThermodynamics
The invention discloses a system and method for treating solid waste. The system comprises a pretreatment unit, a drying unit, a pyrolysis unit and a screening unit. The pyrolysis unit comprises: an inner cylinder and an outer cylinder. The inner cylinder can be rotatably arranged to form a pyrolysis space in the inner cylinder. The inner wall of the inner cylinder is provided with spiral blades. The front end of the inner cylinder is provided with a dry material inlet, and the rear end of the inner cylinder is provided with a solid material outlet. The outer cylinder is sleeved on the inner cylinder to form a combustion space. The combustion space is provided with a pyrolysis oil and gas pipeline. One end of the pyrolysis oil and gas pipeline is connected with the pyrolysis space, and the other end of the pyrolysis oil and gas pipeline extends in the combustion space. A primary air inlet and a secondary air inlet are provided on the outer cylinder near the other end of the pyrolysis oil and gas pipeline. The secondary air inlet and the other end of the pyrolysis oil and gas pipeline are staggered. A heat exchange flue gas outlet is provided on the outer cylinder away from the other end of the pyrolysis oil and gas pipeline. The heat exchange flue gas outlet and the drying cold air outlet are connected with the drying hot air inlet.
Owner:BEIJING YUNSHUI HAORUI ENVIRONMENTAL TECH CO LTD
An interventional surgery catheter shaping device and shaping method thereof
ActiveCN118082263BImprove shaping efficiencyGood shaping effectHollow article cleaningCatheterCatheterReoperative surgery
The present application belongs to the technical field of interventional surgical catheters, and specifically is an interventional surgical catheter shaping device and a shaping method thereof, comprising a kettle body, a boiling chamber is arranged inside the kettle body, a kettle cover is arranged on the top of the kettle body, a controller is arranged on one side of the kettle body and the kettle cover, a workbench is arranged on the top of the kettle cover, and a plurality of exhaust holes are evenly arranged on the workbench; a rotating shaft is rotatably connected to the axis of the boiling chamber, a plurality of stirring rods are evenly arranged on the outer surface of the rotating shaft, side grooves are arranged at the opposite ends of the stirring rods on the same side, sliding rods are slidably connected inside the side grooves, and a plurality of fixed sleeves are evenly arranged on the top of the workbench; the shaping device has high shaping efficiency and good shaping effect, meets actual shaping needs, ensures that the end of the interventional surgical catheter meets the patient's vascular intervention requirements, is simple to operate, has strong controllability, is stable and efficient, has good continuous shaping effect, is stable and efficient, and has strong adaptability.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV +1
A winding type PLD target surface consumption measuring and scanning compensation device and method
PendingCN122503810AGet actual three-dimensional consumption parametersRealize quantitative judgment
This invention discloses a wound-type PLD target surface consumption measurement and scanning compensation device and method, belonging to the technical field of pulsed laser deposition equipment and high-temperature superconducting coated conductor preparation. The device includes a pulsed laser deposition cavity, a target material, a target material motion module, a laser scanning module, a target surface three-dimensional measurement module, and a control module. The control module calculates local consumption depth, slope, groove parameters, and consumption uniformity parameters based on the initial and current target surface height distribution, and generates laser scanning compensation parameters accordingly. The laser scanning module adjusts the scanning trajectory, speed, frequency, pulse number, or dwell time accordingly; the target material motion module synchronously adjusts rotation, oscillation, or translation parameters to ensure the laser action area avoids over-consumption areas or increases the frequency of action on under-consumption areas. This invention enables quantitative judgment of target surface consumption parameters and solves the problem of difficulty in timely identification of local pits, grooves, or tilts on the target surface.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Face attribute recognition method and device, electronic equipment and computer storage medium
PendingCN119646247AImprove efficiencyimprove accuracyBiological modelsStill image data indexingFeature vectorFeature extraction
The embodiment of the invention provides a face attribute recognition method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of artificial intelligence, and the method comprises the steps: carrying out the feature extraction of the sub-data of each mode after the retrieval data is obtained, obtaining a sub-feature vector corresponding to the sub-data of each mode, and carrying out the feature extraction of the sub-data of each mode; generating a first feature vector corresponding to the retrieval data based on each sub-feature vector; and matching the first feature vector with an updated face image database, and if a matched target second feature vector exists, taking a target face image corresponding to the target second feature vector as a retrieval result. According to the embodiment of the invention, when face attribute recognition is carried out, under the condition of being not limited by a single picture mode, face attribute types and complexity, any face attribute in an open world scene can be accurately recognized through a piece of text description or a piece of face picture data.
Owner:CHINA TELECOM ARTIFICIAL INTELLIGENCE TECHNOLOGY (BEIJING) CO LTD
A motor seal assembly, downhole tool string, and related applications
The application discloses a motor sealing assembly, a downhole tool string and related applications. The assembly comprises: a joint body assembly, a mechanical sealing assembly, a sealing shaft and a sheath metal pipe arranged in the joint body assembly; the mechanical sealing assembly is arranged on the motor output shaft, a balance piston and a centralizing bearing seat are arranged between the sealing shaft and the joint body assembly, and the balance piston is arranged in a slidable sealing mode between the sealing shaft and the joint body assembly; a first chamber for storing motor oil is formed between the upper surfaces of the joint body assembly, the sealing shaft, the mechanical sealing assembly and the balance piston, and a second chamber for communicating with the annulus of a wellbore is formed between the lower surfaces of the joint body assembly, the sealing shaft, the balance piston and the centralizing bearing seat; the sheath metal pipe is a through channel of a cable, penetrates through the balance piston and extends into the mechanical sealing assembly and the centralizing bearing seat at both ends, and is in sealing connection with the mechanical sealing assembly, the balance piston and the centralizing bearing seat. The motor sealing assembly can realize the functions of cable and high-pressure sealing.
Owner:CHINA NAT PETROLEUM CORP +1
Flow mode control system and method for natural gas accumulation sampling system
PendingCN121994541ADifficult to solveSimple and fast operationWithdrawing sample devicesControl systemControl signal
The invention discloses a natural gas accumulation sampling system flow mode control system and method, and relates to the technical field of natural gas analysis. Comprising the following steps: reading instantaneous flow data of a station control system, and selecting a flow mode control signal type of a natural gas accumulation sampling system; when the flow mode control signal is a pulse voltage signal, instantaneous flow data are read and accumulated, when an accumulated flow value reaches a preset flow value, the pulse voltage signal is output, and a sampling pump of an accumulated sampling system is controlled and triggered to perform primary sampling; when the flow mode control signal is an analog current signal, instantaneous flow data are read and converted into the analog current signal, instantaneous flow is calculated and accumulated through an accumulation sampling system control module, and a sampling pump performs primary sampling when a preset flow value is reached; after one-time sampling is completed, accumulation is carried out again until the sampling frequency reaches a preset value; flow mode control of the natural gas accumulation sampling system is achieved, and the natural gas accumulation sampling system has the advantages of being high in universality, independent, portable, simple and easy to achieve.
Owner:PETROCHINA CO LTD
Rotating device for motor rotor machining
ActiveCN222345006Ueasy to operateDifficult to solveRevolution surface grinding machinesManufacturing stator/rotor bodiesElectric machineMechanical engineering
The utility model discloses a rotating device for motor rotor processing, relates to the related field of motor rotor processing, and aims to solve the problems that in the prior art, a central rotating shaft penetrates through a motor rotor, the motor rotor is fixed, and the central rotating shaft of the motor rotor is fixed with structures on the two sides under the condition that the central rotating shaft and the motor rotor are lifted; and in order to guarantee rapid fixing, the lifting position needs to be stabilized, the center line is kept consistent, and the operation difficulty is large. A motor rotor supporting assembly is fixed to one side of the upper end of the supporting table and comprises a lower supporting piece and an upper fixing piece, the lower supporting piece is composed of a first side plate, an inner cambered surface box and a first rear fixing strip, and the upper fixing piece is composed of a second side plate, a middle connecting strip and a second rear fixing strip. A motor rotor fixing assembly is arranged in the motor rotor supporting assembly, and a center supporting rotating shaft is arranged on the motor rotor fixing assembly.
Owner:ZHIDE MOTOR SUZHOU CO LTD
Supporting cylinder structure for supporting irregular roof steel structure
ActiveCN222649211UReduce security risksDifficult to solveStrutsPhotovoltaic energy generationSupport pointSteel structures
Owner:BEIJING URBAN CONSTR SIXTH GRP
A water temperature control device for Litopenaeus vannamei aquaculture
This utility model discloses a water temperature control device for Litopenaeus vannamei (whiteleg shrimp) farming, comprising a heater and a cooler. Both the heater and cooler have inlet pipes mounted on their sides, connected by a T-junction. A delivery pump is mounted on the side of the T-junction, and a dispersion component for water dispersion is mounted on the side of the delivery pump furthest from the T-junction. This utility model's heater and cooler reliably provide cold and hot water, the delivery pump ensures efficient water delivery, the dispersion device effectively achieves uniform water dispersion, and the temperature monitoring and control system ensures precise water temperature control. This rational structural design improves the reliability and durability of the equipment, reduces equipment failures, lowers maintenance costs, extends the equipment's service life, and provides long-term stable water temperature control for Litopenaeus vannamei (whiteleg shrimp) farming.
Owner:TIANJIN JINSHUIZU AQUACULTURE CO LTD
Flushing device for air cooling island
The utility model provides an air cooling island flushing device which comprises a supporting frame connected with a steel structure in an air cooling island. The flushing part is used for flushing the interior of the air cooling island; one end of the connecting part is connected with the supporting frame, the other end of the connecting part is connected with the flushing part, and the connecting part is used for movably connecting the flushing part with the supporting frame. According to the scheme, the supporting frame is fixedly arranged in the air cooling island and plays a role in supporting the connecting part and the flushing part; the washing part is movably connected to the supporting frame through the connecting part, so that the washing part can be erected on the supporting frame to wash the interior of the air cooling island. The flushing part is erected through the supporting frame, so that the flushing part is easier to control by personnel, and the problem that the flushing operation of the air cooling island is difficult is solved.
Owner:CHINA ENERGY GRP NINGXIA COAL IND CO LTD
Roller mark detection equipment
ActiveCN224163589UEfficient detectionimprove accuracyFinal product manufactureOptically investigating flaws/contaminationFirst lightSolar cell
The utility model relates to the technical field of solar cells, and particularly discloses roller mark detection equipment, which comprises a base frame provided with a detection area used for placing a silicon wafer to be detected; the first light source is mounted on the base frame, and the first light source is used for irradiating the silicon wafer so as to polish the surface of the silicon wafer; the rotating mechanism is mounted on the base frame; and the detection mechanism comprises a camera and a second light source arranged on the periphery of the camera, the camera is connected with the rotating mechanism, the camera is used for rotating around the side edge of the silicon wafer under the driving of the rotating mechanism, the camera is used for acquiring image information of the silicon wafer, and the second light source is used for emitting light to the direction of the silicon wafer. According to the utility model, the roller mark can be detected in advance in the solar cell preparation process, so that the problem of solar cell finished product abnormity caused by the roller mark can be timely fed back and processed.
Owner:TONGWEI SOLAR ENERGY (MEISHAN) CO LTD
Intelligent control explosion-proof distribution box
PendingCN122292174ADifficult to solveResolving inherent conflict issuesMechanical engineeringElectrical element
This invention relates to the field of distribution boxes, and more particularly to an intelligent explosion-proof distribution box. It includes a mounting frame; a box body connected to the mounting frame; and a protective door installed on the box body. This invention achieves the following: by attaching the installed electrical components to the mounting plate, the mounting plate absorbs the heat from the electrical components, which is then conducted to the fins within the heat dissipation cavity. The airflow formed within the heat dissipation cavity then dissipates heat from the fins and the mounting plate. Simultaneously, the mounting plate separates the box body from the heat dissipation cavity, preventing external airflow from entering the box body during the heat dissipation process. This solves the inherent conflict between heat dissipation requirements and explosion-proof safety in existing outdoor distribution cabinet designs. Furthermore, by using the heat dissipation cavity as the connecting carrier between the box body and the mounting frame, when an electrical component inside the box explodes, the mounting plate and the heat dissipation cavity buffer the residual vibrations from the explosion, reducing the impact of the explosion on the mounting frame.
Owner:BEIJING KALOON ANALYTICAL INSTR
Hearing training instrument
ActiveCN222640074Uquick dismantlingImprove convenienceCleaning using toolsTablesElectrophonic hearingAcoustics
The utility model belongs to the field of hearing training instruments, and particularly relates to a hearing training instrument which comprises a table board. A mounting seat is arranged at the top end of the table plate, a hearing training instrument main body is arranged at the top end of the mounting seat, and the hearing training instrument main body is provided with a dismounting mechanism; the dismantling mechanism comprises first fixing blocks, the first fixing blocks are arranged on the two sides, close to the bottom end, of the hearing training instrument body, and the side ends of the first fixing blocks are fixedly connected with the side end of the hearing training instrument body. Through the design of the dismantling mechanism, the function of quickly dismantling the hearing training instrument is achieved, and the problems that an existing hearing training instrument is not provided with an assembly convenient to dismantle, and when the hearing training instrument needs to be dismantled to be maintained, an existing device is not provided with an assembly convenient to dismantle, and the hearing training instrument is not convenient to maintain are solved. Therefore, the problems that the difficulty is high during dismantling and the operation is not easy are solved, and the convenience during dismantling is improved.
Owner:HEBI AUTOMOTIVE ENG PROFESSIONAL COLLEGE
Cable distribution box grounding device
ActiveCN119401141Astable positioneasy to operatePhotovoltaic energy generationConnection contact member materialGear wheelElectric cables
Owner:GUANGDONG DIANWANG GONGSI YUNFU POWER SUPPLY BUREAU
Wheel, bogie and rail vehicle
The embodiment of the invention provides a wheel, a bogie and a railway vehicle, and the wheel comprises a wheel core which is made of a first metal alloy; an annular mounting groove or an annular convex part is arranged on the peripheral surface of the wheel core; the wheel rim is made of a second type of metal; the density of the first metal alloy is smaller than that of the second metal; an annular mounting groove or an annular convex part is arranged on the inner circumferential surface of the wheel rim; the annular mounting grooves and the annular convex parts on the outer circumferential surface of the wheel core and the inner circumferential surface of the wheel rim are correspondingly arranged; and the annular convex parts are embedded into the annular mounting grooves and are used for axially limiting the wheel core and the wheel rim. According to the wheel, the bogie and the railway vehicle provided by the embodiment of the invention, the problem of high difficulty in hot charging or press mounting of a traditional split type wheel can be solved, the weight of the wheel is relatively light, the lightweight design of the bogie is favorably realized, and the wheel rail noise is reduced.
Owner:CRRC TANGSHAN CO LTD
Drinking water production filter tank
ActiveCN224071352Ueasy to carryincrease flexibilityGeneral water supply conservationStationary filtering element filtersPotable waterFiltration
The utility model discloses a drinking water production filter tank, and relates to the technical field of drinking water filtration. The device comprises a supporting seat, a filtering box body is fixedly connected to the center of the top end of the supporting seat, a top cover is arranged above the filtering box body, second square plates are symmetrically and fixedly connected to the centers of the two side ends of the top cover, and a lead screw is fixedly connected to the center of the bottom end of each second square plate. First square plates are symmetrically and fixedly connected to the centers, close to the top, of the two side ends of the filtering box body, round holes are formed in the centers of the interiors of the first square plates, the round holes are matched with the lead screws, and fulcrum shafts are symmetrically and slidably inserted in the positions, close to the centers of the two sides, of the interior of the top cover; according to the filter plate disclosed by the utility model, the nut is rotated, and the top cover is matched with the square plate I, the square plate II, the fulcrum shaft and the push rod, so that the filter plate body which is used for a long time can be conveniently cleaned, and the problem that the filter plate is fixedly mounted in the box body, so that the difficulty is relatively high when the filter plate is cleaned is solved.
Owner:HONGHE PHOENIX YIN QUAN WATER IND CO LTD
Electric EGR valve
The invention relates to an electric EGR valve which comprises a valve body, a valve cavity is formed in the valve body, and a valve port communicating with the valve cavity is formed in the valve body; a valve element located in the valve cavity is arranged at the first end of the valve rod, and a sliding groove is formed in the second end of the valve rod; the eccentric wheel is provided with a bearing located in the sliding groove. The driving mechanism comprises a transmission mechanism and a driver used for driving the transmission mechanism to rotate, an output shaft of the driver is in driving connection with the power input end of the transmission mechanism, the power output end of the transmission mechanism is connected with the eccentric wheel, and the valve element moves in the direction close to or away from the valve port in the axial direction of the valve rod so as to open and close the valve port; the adjusting part can be in contact with one of the transmission mechanism, the eccentric wheel and the bearing which are in a rotating state, and the adjusting part can be adjusted to be in contact with different positions, arranged in the circumferential direction, of the part so as to adjust the rotating angle of the bearing rotating around the power output end of the transmission mechanism. And due to the arrangement of the adjusting piece, the idle strokes in different electric EGR valves can be kept consistent.
Owner:ZHEJIANG YINLUN MACHINERY
Holding and clamping type vertical pipe suspension device and mounting method thereof
PendingCN119616399Aeffective installationDifficult to solveSealing/packingButt jointMarine equipment
The invention relates to an embracing and clamping type stand pipe hanging device and an installation method thereof, and belongs to the technical field of marine equipment, the device comprises a plurality of hanging units, each hanging unit comprises a stand pipe butt joint assembly and a pile leg fixing assembly, the stand pipe butt joint assembly comprises a stand pipe unit, and the pile leg fixing assembly comprises a pile leg fixing assembly. The outer wall of each vertical pipe unit is provided with a clamping sleeve and a clamping piece annular array, and the clamping piece annular arrays are detachably connected to the clamping sleeves. The pile leg fixing assemblies of the multiple suspension units are sequentially welded to the outer wall of a pile leg of the offshore oil and gas production jacket platform from top to bottom, and the hoops of the vertical pipe butt joint assemblies of the multiple suspension units are clamped to the clamping piece annular arrays of the vertical pipe butt joint assemblies. The upper vertical pipes and the lower vertical pipes are connected into a whole pipe which is through from top to bottom through the adjacent vertical pipe units, and the whole pipe is hung on a pile leg.
Owner:CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1