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33results about How to "Avoid putting into use" patented technology

New energy electric vehicle motor and rear axle matching performance detecting device

The invention relates to a new energy electric vehicle motor and rear axle matching performance detecting device, which comprises a detection system and a rear axle fixture, wherein the rear axle fixture is arranged on a workbench; the rear axle fixture is composed of an axle package fixture and two axle tube fixtures, and the two axle tube fixtures are respectively located at the left side and the right side of the rear axle fixture; the axle package fixture structurally comprises a positioning base, the top surface of the positioning base is provided with a sliding slot along the length direction, a rotating shaft is fixed in the sliding slot through bearing pedestals at two ends, the circumferential surface of the front end of the rotating shaft is provided with a positive thread, the circumferential surface of the rear end of the rotating shaft is provided with a negative thread, threaded holes in a front sliding block and a rear sliding block are respectively meshed with the threads at the front and rear ends of the rotating shaft, and one end of the rotating shaft is connected with a handle; and the opposite surfaces of the front sliding block and the rear sliding block are provided with positioning slots respectively, each positioning slot is internally provided with a clamping block, and the clamping surface of each clamping block is an arc-shaped surface. The device can quickly detect the noise in operation of a motor and a rear axle, thereby avoiding products with loud noise from being put into use.
Owner:湖北风驰新能源车辆有限公司

Device for detecting oscillating quantity of adjusting gear of counter

The invention discloses a device for detecting an oscillating quantity of an adjusting gear of a counter, belonging to an instrument detection device. The detecting device comprises a base plate, and at least a first support frame and a second support frame, wherein the at least two support frames are arranged on the base plate; the base plate is also provided with a counter fixed platform; the at least two support frames are respectively provided with a first dial indicator and a second dial indicator; the first dial indicator is transversely arranged on the first support frame while the second dial indicator is lengthways arranged on the second support frame; and the line from the side head of the second dial indicator to the base plate is contacted with the counter fixed platform. The device for detecting the oscillating quantity of the adjusting gear of the counter, provided by the invention, has a simple structure, can be used for detecting horizontal and vertical oscillating quantities of counters of various types at the same time by utilizing the detection principle of the dial indicator, is particularly suitable for detecting the horizontal and vertical oscillating quantities of gas meters, and is easy to popularize.
Owner:CHENGDU QINCHUAN IOT TECH CO LTD

Drop aeration and anaerobic treatment integrated sewage treatment device

The invention discloses a drop aeration and anaerobic treatment integrated sewage treatment device. The drop aeration and anaerobic treatment integrated sewage treatment device comprises a reservoir, a sewage treatment unit and an acceptance pool, wherein a drop aeration ditch is arranged in the sewage treatment unit, a water inlet is formed between the reservoir and the sewage treatment unit and connected with a movable door, and a lever start and stop mechanism is connected onto the movable door; a solar panel and a blowing fan are arranged on the upper surface of the sewage treatment unit, and a water outlet and a sludge outlet are formed between the sewage treatment unit and the acceptance pool; the acceptance pool comprises a purified water collection tank and a sludge collection tank, and a collection port is formed in the sludge collection tank which is connected with the sludge outlet; a comparison tank is arranged in the purified water collection tank, a circulating pipe is connected onto the purified water collection tank, one end of the circulating pipe is connected with the sewage treatment unit, and a water suction pump is arranged on the circulating pipe. According to the drop aeration and anaerobic treatment integrated sewage treatment device, a drop aeration device is taken as a prototype, anaerobic reaction is added, a drop aeration and anaerobic treatment integrated effect is realized, and the cost and occupied space are saved greatly.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Analysis device and method for measuring content of hydrogen sulfide and hydrogen phosphide

The invention discloses an analysis device and method for determining the content of hydrogen sulfide and hydrogen phosphide. The device comprises a carrier gas device, a fuel gas device, a combustion-supporting gas device, a six-way valve, a flame photometric detector and a display, the carrier gas device is connected to the six-way valve through the first filter; the gas device is connected witha flame photometric detector through a third filter; the combustion-supporting gas device is divided into two paths of air pipelines to be connected to the flame photometric detector after passing through the second filter; the six-way valve is connected to the chromatographic column; wherein the chromatographic column is connected to the flame photometric detector, the flame photometric detectoris a double-photomultiplier detector, a sulfur optical filter and a phosphorus optical filter are respectively arranged at the outlet of the flame photometric detector, and response signals obtainedby detection are respectively connected with the first micro-current amplifier and the second micro-current amplifier and then transmitted to the display for spectrogram. According to the method, hydrogen sulfide and hydrogen phosphide in the mixed gas can be effectively separated, and the content of hydrogen sulfide and hydrogen phosphide is determined.
Owner:INNER MONGOLIA MENGWEI TECH CO LTD +1

Environmentally-friendly and efficient chemical waste gas purification treatment device

The invention discloses an environmentally-friendly and efficient chemical waste gas purification treatment device in the field of mechanical processing. The device comprises an electrostatic dust removal part, a dust collection part, an exhaust gas inlet, an integrated purification tower, a water tank, an atomizing nozzle, a second gas conveying pipe and an exhaust gas purification tower. A mercury lamp is fixedly installed below a mercury lamp fixing bracket. The lower end of a cleaning plate support is provided with gas channels. A vapor adhesive layer is arranged at the upper part in the integrated purification tower. The upper end of the integrated purification tower is provided with an adsorption filter layer. The top of the integrated purification tower is provided with a pressure cabin. The top of the upper part of the exhaust gas purification tower is provided with an exhaust gas differentiation device. The integrated purification tower can orderly and specifically purify exhaust gas through the mercury lamp, the cleaning plate, a water conveying pipe and materials filling a honeycomb structure block, can purify various impurities, can improve the purification efficiency,can improve the purification quality, can prevent the use of multiple purification devices and is environmentally friendly and efficient.
Owner:HENAN HUANQIU AVIATION EQUIP TECH CO LTD

Carton indentation quality detection method and system based on computer vision

The invention relates to the technical field of image processing, in particular to a carton indentation quality detection method and system based on computer vision, and the method comprises the steps: obtaining a surface image of to-be-detected corrugated paper, and detecting an indentation center line of an indentation in the surface image, a Gaussian mixture model of gray distribution of each pixel point on the indentation center line in the vertical direction on the surface image is obtained, model parameters of the Gaussian mixture model are structural feature vectors of the corresponding pixel points, and uniformity is obtained according to the similarity between the structural feature vectors; and obtaining the anisotropy of each pixel point in the surface image according to the characteristic value of each pixel point, obtaining the carton damage degree of each pixel point, and obtaining the quality risk of the to-be-detected corrugated paper. According to the method, the carton damage degree and the tearing expansion risk of the indentation structure of the corrugated paper are sequentially detected through the image, so that the quality problem possibly occurring when the carton is folded along the indentation is accurately evaluated.
Owner:武汉福旺家包装有限公司

Method for testing welding quality of electro-fusion joint and realizing automatic evaluation

The invention relates to electro-fusion welding technology for plastic pipelines or plastic composite pipelines, and aims to provide a method for testing the welding quality of an electro-fusion joint and realizing automatic evaluation. The method comprises the following steps of: measuring peeling energies E of the electro-fusion joint and the distance L between a characteristic line and a resistance wire under different welding conditions, and acquiring a fitted curve, serving as a calibration basis, of the peeling energy per unit area Ep and the distance L; and testing the welding quality of the electro-fusion joint and realizing the automatic evaluation. The method can prevent unqualified electro-fusion joints from being put into use, so that the safety of plastic pipes and composite pipe systems is ensured. A software module for realizing the method is integrated on an electro-fusion welded or electro-fusion jointed ultrasonic testing instrument, so that a welder automatically controls the welding quality or the testing instrument automatically evaluates an electro-fusion welded joint to be tested, the influence of human factors is avoided, and the quality of a welded joint is more reliable and the evaluation result is more objective.
Owner:ZHEJIANG UNIV

Sealing detection device for movement diaphragm capsule of diaphragm gas meter

The invention relates to a sealing detection device for a movement diaphragm capsule of a diaphragm gas meter, and relates to the technical field of diaphragm gas meter production. The sealing detection device comprises a rack, and a bearing table used for placing a movement diaphragm capsule is erected on the rack. A driving air cylinder is erected on the portion, located on the upper side of the bearing table, of the rack, a ventilation box is arranged at one end of a piston rod of the driving air cylinder, a cavity is formed in the ventilation box, and an air inlet and an air outlet are formed in the ventilation box. A sealing performance detector is erected on the rack, guide pipes are arranged between the air inlet and the sealing performance detector and between the air outlet and the sealing performance detector, and the air inlet and the air outlet are communicated with the sealing performance detector through the guide pipes. The ventilation box is provided with a detection port, and the detection port is respectively communicated with the cavity and the movement diaphragm capsule. According to the application, a movement diaphragm capsule of which the sealing performance does not meet the requirement can be prevented from being put into use, the gas is prevented from leaking from the inside of the movement diaphragm capsule, and the life and property safety of people is protected.
Owner:ZHEJIANG RONGXIN GAS METER

Power factor correction module verification method and device, storage medium and electronic equipment

The invention relates to a power factor correction module verification method and device, a storage medium and electronic equipment. The qualification verification of a power factor correction module is realized when the load of an air conditioner suddenly changes. The method comprises the steps of simulating an air conditioner load sudden change scene according to a preset simulation mode; acquiring state parameters of a power factor correction module of the air conditioner in the air conditioner load sudden change scene; and carrying out qualification verification on the power factor correction module according to the state parameters so as to determine whether the power factor correction module is qualified or not. When the load of the air conditioner suddenly changes, the qualification verification is performed on the power factor correction module, so that the power factor correction module which can generate peak current or fluctuate bus voltage is prevented from being put into use when the load of the air conditioner suddenly changes, and the reliability of the power factor correction module of the air conditioner when the load of the air conditioner suddenly changes is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Method and device for determining switching current threshold value of power factor correction module

The invention relates to a method and device for determining a switching current threshold value of a power factor correction module, and solves the problem of abnormal control of the power factor correction module caused by mistaken switching on or switching off of the power factor correction module in the prior art. The method comprises the following steps: setting a switching current threshold value of a power factor correction module; performing switching verification on the power factor correction module according to the switching current threshold value to determine whether the switching current threshold value meets a preset current margin condition or not; and when the current margin condition is not met, adjusting the switching current threshold value of the power factor correction module until the adjusted switching current threshold value meets the current margin condition. The switching current threshold value of the power factor correction module is adjusted, so that the situation that the bus voltage of the air conditioner is too low and the air conditioner cannot work normally due to the fact that the difference between the mistakenly-turned-on current threshold value and the mistakenly-turned-off current threshold value of the power factor correction module is large is avoided; and the power factor correction module which may be in a mistaken switching-on state or a mistaken switching-off state is prevented from being put into use.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Wheel set bearing fault diagnosis device and method

The invention relates to the technical field of rail transit, and discloses a wheel set bearing fault diagnosis device and method, and the device comprises a first supporting assembly, a loading assembly, a driving assembly, a detection module, a control module, and a data processing module. The first supporting assembly is used for supporting a to-be-tested wheel set, the loading assembly is used for loading a wheel set bearing of the to-be-tested wheel set, and the driving assembly is used for driving the accompanying wheel set to rotate so as to drive the to-be-tested wheel set to rotate. The detection module is used for measuring vibration information of the wheel set bearing, and the control module can control the driving assembly to drive the accompanying wheel set to rotate and control the loading assembly to load the wheel set bearing. And the data processing module can judge the fault condition of the wheel set to be detected according to the vibration information detected by the detection module. According to the invention, the fault condition of the wheel set bearing can be rapidly measured without dismounting the wheel set bearing, and the diagnosis efficiency is high. And the diagnosis accuracy of the wheel set bearing can be ensured, a fault wheel set is prevented from being put into use, and the driving safety of a truck is improved.
Owner:BEIJING RAILWAY INST OF MECHANICAL & ELECTRICAL ENG

Automatic commutation device detection device and method based on PWM converter

The invention relates to an automatic commutation device detection device and method based on a PWM converter, and belongs to the technical field of device detection. The detection device comprises the PWM converter, a field controller, a wireless handheld terminal and a three-phase symmetrical load. The field controller comprises a converter control module, a data analysis module, a phase selector receiving module, a control chip and a first radio frequency signal transceiving module, and the wireless hand-held terminal comprises a microprocessor, a touch liquid crystal display screen, a second radio frequency signal transmit-receive module and other structures. According to the automatic commutation device detection device and method based on the PWM converter, a detection way for the performance of a current low-voltage automatic phase-change device is provided, the situation that the current low-voltage automatic phase-change device is put in use on the premise that the performanceof the low-voltage automatic phase-change device is unknown is avoided, and further the loss caused by cutting off the power supply of the users after the device is used for the on-site test and maintenance is avoided, and the potential safety operation hidden dangers are avoided.
Owner:YUNNAN POWER GRID CO LTD LINCANG POWER SUPPLY BUREAU

Oil well fracturing ball injector

The invention relates to the technical field of fracturing ball injectors, and discloses an oil well fracturing ball injector. The oil well fracturing ball injector comprises a box body, a ball injection pipe fixedly communicates with the interior of the box body, a ball injection channel is formed inside the ball injection pipe, the side face of the ball injection pipe is movably sleeved with a check block, a first installing frame is fixedly connected to the side face of the ball injection pipe, and a first telescopic rod is fixedly connected to the inner side face of the first installing frame. According to the oil well fracturing ball injector, a communicating sleeve fixedly communicates with the side face of a ball injecting pipe, a discharging hole and a selecting hole are formed in the bottom face of the communicating sleeve, a second telescopic rod on the digging side of a box body is connected into the communicating sleeve in a sleeve mode, a magnetic suction head on the end face of the communicating sleeve is utilized, the magnetic suction head is powered off and loses magnetism, when blocking balls with a proper diameter are selected, the unsuitable blocking balls are attracted and pulled to the discharging hole to be released in a power-off mode after being powered on, the selection effect of the blocking balls is improved, the blocking balls can adapt to pipelines conveniently, and the using effect is good.
Owner:孙淑芳

Technological procedure risk evaluation method based on FRAM (failure rate assessment machine)

InactiveCN106803005AEasy to handleEliminate variation in critical process activitiesDesign optimisation/simulationResourcesEvaluation resultFailure rate
The invention provides a technological procedure risk evaluation method based on a FRAM (failure rate assessment machine). The evaluation method includes the steps: S1 performing modeling for technological procedures by the aid of the FRAM: determining active sub-modules of the technological procedures, performing variation and coupling analysis of variation for the active sub-modules, and performing modeling according to analysis results; S2 building the technological procedure risk evaluation method based on the FRAM: identifying hidden paths (technological activity variation coupling modes) generating unexpected events in the technological process and key activities in the paths, and further identifying related defects of the technological procedures; S3 providing an improved scheme of the technological procedures from restraining or eliminating of variation of the key activities in the paths based on eliminating of generating paths, and performing validation verification. According to the method, modeling of the technological procedures can be achieved, risks are evaluated based on a model, the improved scheme of the technological procedures is acquired according to evaluation results, and the technological procedures are improved.
Owner:BEIHANG UNIV

Railway wagon accessory maintenance information system

The invention provides a railway wagon accessory maintenance information system. The system comprises six modules of a swing bolster maintenance module, a side frame maintenance module, a brake beam maintenance module, a cross rod maintenance module, an accessory information module and a normal position detection mdule. Each of the swing bolster maintenance module, the side frame maintenance module, the brake beam maintenance module and the cross rod maintenance module comprises a decomposition inspection module, a flaw detection module and a self-inspection module, the accessory information comprises five modules including a process tracking module, a list printing module, a maintenance record card module, a maintenance standing book module and a supervision sampling module, and the normal position detection module comprises a list query module. Transparency of production management is achieved, the production cost is greatly reduced, production task accumulation and production waiting are eliminated, the production efficiency is improved, and expired accessories are prevented from being put into use; and secondly, according to the bogie overhaul serial number, corresponding bogiefour-piece assembly information and overhaul conditions of four-piece accessories in all procedures are automatically brought out, it is ensured that a goods overhaul large assembly line is balancedand orderly, and a guarantee is provided for time-based production.
Owner:CRRC GUIYANG CO LTD
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