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909results about How to "Reduce maintenance frequency" patented technology

New energy power prediction method and system based on multi-source meteorological data fusion

The invention belongs to the technical field of power prediction, and discloses a new energy power prediction method and system based on multi-source meteorological data fusion, and the method comprises the steps: obtaining meteorological data from different meteorological data sources in real time or at regular time through a data obtaining module; carrying out preliminary screening and preprocessing on the obtained data by utilizing a data processing module; the data fusion module is used for integrating meteorological data from different sources by adopting an advanced data fusion algorithm to eliminate data redundancy; a mathematical model or a machine learning model suitable for new energy power prediction is constructed by using the prediction model module based on meteorological data of multi-source fusion; and the result output and evaluation module is used for outputting the prediction result to a user in a visual form, and carrying out real-time or regular evaluation on the prediction result. The method has the characteristics of diversified data sources, advanced data fusion technology, flexible prediction model construction, high real-time performance and accuracy, wide application scenarios and the like.
Owner:STATE GRID GANSU ELECTRIC POWER CORP +1

Modified silicone oil oiling agent with comb-shaped structure as well as preparation method and application of modified silicone oil oiling agent

The invention provides a modified silicone oil agent with a comb-shaped structure as well as a preparation method and application thereof, the oil agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil emulsion and the epoxy group-containing modified silicone oil emulsion have comb-shaped structures, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: respectively preparing amino short-chain silicone oil and epoxy group-containing short-chain silicone oil, and then respectively synthesizing amino modified silicone oil emulsion and epoxy group-containing modified silicone oil emulsion. The acrylate polymer is introduced, the content of organic silicon is reduced, the viscosity of the oiling agent is small, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and therefore the surface defects of the carbon fibers are reduced.
Owner:PULCRA SPECIALTY CHEM SHANGHAI CO LTD

Lifting type guide chute

The invention discloses a lifting type guide chute, and relates to the technical field of guide chutes, the lifting type guide chute comprises a support frame and a guide chute body, and further comprises an adjusting mechanism arranged on the inner wall of the guide chute body, the adjusting mechanism comprises a rotating plate, a spring fixed above the rotating plate through a groove, a base plate fixed with the top end of the spring, and an adjusting assembly, according to the lifting type material guide groove, the adjusting mechanisms are arranged in the side plates of the material guide groove, when materials are discharged, the impact force of material descending can be relieved, scattered materials can be conveniently gathered in the middle of the conveying belt during discharging, the side plates are protected, the conveying belt is not prone to falling, and the material guide groove is convenient to use. And meanwhile, by adjusting the angle of the rotating plate, the discharging speed and quantity of the materials can be controlled, the discharging stability is further improved, the situation that the materials are excessively stacked, the conveying efficiency is affected, the conveying belt is protected is avoided, the maintenance frequency is reduced, and the service life of the conveying belt is prolonged.
Owner:HUAIBEI HEZHONG MACHINERY EQUIPMENT CO LTD

Online adjusting and processing system and method for abnormal working conditions of long-distance pipeline slurry concentration system

The invention discloses an abnormal working condition online adjusting and processing system of a long-distance pipeline conveying slurry concentration system. The abnormal working condition online adjusting and processing system comprises an upstream incoming material pipeline, a feeding collection box is arranged below an outlet of the upstream feeding pipeline; an emergency pipeline with the tail end leading to the ore pulp distribution box is further communicated with the upstream feeding pipeline between the feeding concentration meter and the flow meter, and an emergency pipeline switch electric valve is arranged on the emergency pipeline; a thickener is arranged below the outlet end of the feeding collection box; the lower end of the thickener is communicated with an inlet of the underflow pump through an underflow pump inlet pipeline; an outlet of the underflow pump is communicated with an underflow pump outlet pipeline, the tail end of the underflow pump outlet pipeline is divided into two paths, one path is a self-circulation pipeline leading to the feeding collection box, and the other path is a normal pulp conveying pipeline leading to the pulp distribution box; the invention further discloses a corresponding processing method. Through diagnostic analysis and targeted treatment of abnormal working conditions of the concentration system, safe and stable operation of the concentration system is ensured, rake pressing of the thickener can be effectively avoided, and investment is saved.
Owner:CHINA MEDIA SCI & TECH GRP WUHAN DESIGN RES INST CO LTD

Scouring system control method and device and related equipment

The invention provides a flushing system control method and device and related equipment, and relates to the technical field of medical control. The method is applied to a ventricular assist device and comprises the steps that ventricular assist device parameters are obtained, and the ventricular assist device parameters represent the running state of the ventricular assist device; determining a target flushing flow according to the parameters of the ventricular assist device; according to the target flushing flow, a flushing system is controlled to complete flushing of the ventricular assist device catheter. The target flushing flow is determined by acquiring the parameters of the ventricular assist device, so that the flushing process is accurately controlled, thrombus formation is prevented, the reliability of the ventricular assist device is improved, the safety of a user is guaranteed, meanwhile, the long-term performance of the ventricular assist device is optimized, the maintenance frequency and cost caused by improper flushing are reduced, and the service life of the ventricular assist device is prolonged. And more stable and effective support is provided for users.
Owner:LEPU MEDICAL TECH (BEIJING) CO LTD

Breakage-proof chute device for rectangular storage silo

The invention provides an anti-breaking chute device for a rectangular storage silo. The anti-breaking chute device comprises the rectangular storage silo, a material collecting hopper, a linear chute, a wear-resistant lining plate, a guide chute and a chute bracket, the material collecting hopper is shaped according to material characteristics and is adhered with a wear-resistant lining plate; the linear chute is L-shaped, is provided with an external opening, and is designed with a wear-resistant lining plate and a slope at a fixed angle; the guide chute is U-shaped and fold-line-shaped, has slope fixed angles on two sides, and is arranged at the corner of the silo to be connected with the linear chute; the chute support is in a T shape, materials enter the linear chute through the material collecting hopper, part of the materials are thrown down through the outer opening, and part of the materials are transferred to the next linear chute through the guide chute and are guided to the bin bottom step by step. The device effectively reduces material impact crushing and dust emission, is suitable for single-line and double-line feeding, improves product quality, reduces maintenance, and has advantages in low-investment transformation or new projects.
Owner:DALIAN HUARUI HEAVY IND GRP CO LTD

Nonmetal chain type mud scraper wear limit testing device and testing method thereof

The invention discloses a non-metal chain type mud scraper abrasion limit testing device and a testing method thereof, and relates to the field of experimental testing devices, the non-metal chain type mud scraper abrasion limit testing device comprises a main machine system which comprises a main shaft, a friction pair testing shaft, a load connecting shaft and an annular chain, and the main shaft, the friction pair testing shaft and the load connecting shaft are sleeved with the annular chain; the friction pair testing system is arranged on the friction pair testing shaft, the friction pair testing system comprises a static ring and a movable ring, the static ring sleeves the friction pair testing shaft, the movable ring and the annular chain synchronously rotate, and the movable ring and the static ring mutually rotate and rub; the load system is connected with the load connecting shaft; according to the device, the structural wear life cycle of the mud scraper is predicted through an accelerated testing method, the material of the optimal friction pair is selected, and the service life of the mud scraper is prolonged.
Owner:BEIJING DRAINAGE EQUIP

Method for identifying coal mine shaft crack in non-illumination environment based on optical fiber sensing grating

The invention discloses a coal mine shaft crack identification method in a non-illumination environment based on an optical fiber sensing grating, and belongs to the field of coal mine shaft disease detection. According to the method, distributed optical fibers form an optical fiber sensing grating, the optical fiber sensing grating is fixed on the surface of a well wall, an optical fiber demodulator is used for collecting strain along the optical fibers, a blank blind area of the optical fiber sensing grating is filled through an interpolation algorithm, and a strain field image data set of the well wall is obtained; and a CCD industrial camera is matched to shoot a well wall crack image sample at the optical fiber sensing grating, binarization processing is carried out, and a well wall crack image data set is established. And establishing a well wall crack identification model based on deep learning, introducing two parallel feature extraction branches, respectively receiving an optical fiber strain field image data set and a well wall crack image data set, and performing feature extraction and fusion of the two different types of data sets through training. Because the strain data is sensed through the optical fiber, the illumination environment is not needed, and after the model training is completed, the identification and early warning of the well wall crack in the illumination-free environment can be realized only by inputting the optical fiber strain data acquired in real time into the trained model.
Owner:ANHUI UNIV OF SCI & TECH +1

System and method for intelligently monitoring silt blockage of filling pipeline based on ERT technology

The invention relates to the technical field of chemical or physical analysis, in particular to an ERT technology-based system and method for intelligently monitoring silt blockage of a filling pipeline, and the system comprises an ERT monitoring module, a fluid mechanics optimization module, a blockage risk early warning module, an intelligent scheduling and adjusting module and a self-cleaning and repairing module. According to the method, the conductivity change of fluid in the pipeline is monitored in real time, fluid distribution is accurately mastered, parameters such as flow velocity, pressure and temperature are optimized, the flowing stability of the pipeline is ensured, blockage and deposition are avoided, flowing parameters are dynamically adjusted, flowing abnormity can be rapidly recognized and corrected, the efficiency of the filling process is improved, and meanwhile the self-cleaning function is combined. Sediments are removed through the micro-vibration technology, the maintenance cost and frequency are reduced, the service life of a pipeline is prolonged, the automation and intelligence level of the filling process is improved through the overall scheme, and mine safety and operation stability are improved.
Owner:BEIJING SHOUGANG MINE CONSTRUCT ENG CO LTD

Automatic pruning device for highway green belt

The invention relates to the technical field of green belt trimming application, in particular to an automatic highway green belt trimming device which comprises a cross beam, a limiting assembly, a trimming assembly and a smashing assembly.The automatic highway green belt trimming device is exquisite in design, compact in size and capable of working under the condition of not occupying too much space; the cross beam serves as a main structural part, the supporting legs are vertically fixed to the bottom end of the cross beam, the advancing wheels are installed at the bottom ends of the supporting legs, and through the design, the device can move front and back on an expressway without occupying too much lane space, pruning work can be completed without arranging a roadblock, integration of a hub motor enables the advancing wheels to have the self-walking function, and the practicability is high. Therefore, the trimming device can move autonomously without additional traction or pushing force, the self-walking function greatly improves the efficiency of trimming operation, reduces the labor intensity of workers, and enables the trimming operation to be more flexible and quicker.
Owner:宿州学院

Low-voltage power distribution cabinet convenient to hoist

The utility model relates to the technical field of low-voltage power distribution cabinets, and discloses a low-voltage power distribution cabinet convenient to hoist, which comprises a low-voltage power distribution cabinet shell, a cover plate is arranged on the front surface of the low-voltage power distribution cabinet shell, supporting legs are fixedly connected to the bottom of the low-voltage power distribution cabinet shell, and a heat dissipation plate is fixedly connected to the interior of the low-voltage power distribution cabinet shell. A control switch is arranged in the low-voltage power distribution cabinet shell, an adjusting hoisting mechanism is arranged outside the low-voltage power distribution cabinet shell, an auxiliary limiting mechanism is arranged in the low-voltage power distribution cabinet shell, in the using process, the height of a hoisting frame is conveniently adjusted through rotation of a threaded rod and cooperation with a limiting rod, and the height of the hoisting frame is adjusted through rotation of a worm and cooperation with a worm wheel. The angle of the lifting frame is convenient to adjust, so that friction and other conditions between the lifting rope and the device are effectively avoided, the elastic plate is made to move through button movement, the elastic plate can conveniently limit connecting wires of different models, and accidents in the lifting and device using process are avoided.
Owner:YANGZHOU CITY TONGBAO ELECTRICAL CO LTD

Sorting system

The invention provides a sorting system which comprises a translation track, a bag supply mechanism and a plurality of sorting mechanisms, the bag supply mechanism and the sorting mechanisms are arranged in the extending direction of the translation track, the bag supply mechanism comprises a bag supply table and a bag supply assembly, and the bag supply assembly comprises a bag supply trolley; the sorting mechanism comprises a sorting assembly, the sorting assembly comprises a sorting trolley, a transfer unit and a material receiving unit, and the transfer unit and the material receiving unit are sequentially arranged in the extending direction of the translation track; the bag supply trolley can reciprocate between the bag supply table and the transfer unit of the sorting mechanism adjacent to the bag supply mechanism along the translation track; and the sorting trolley can do reciprocating motion between the transfer units of the two adjacent sorting mechanisms along the translation track, or do reciprocating motion between the transfer unit and the material receiving unit of the same sorting mechanism. The device has the beneficial effects that the number of the sorting mechanisms can be adjusted according to the preset sorting amount, the number of the material receiving units is increased, and capacity expansion is achieved.
Owner:浙江德赞机器人有限公司 +1

Multifunctional mini-tiller

The invention relates to the technical field of farming machinery, in particular to a multifunctional mini-tiller which comprises a rotary tillage tool bit and a switching mechanism, the rotary tillage tool bit is rotationally installed on a machine body and comprises a driving shaft and two rotary tillage tool sets, the driving shaft is in transmission connection with an engine, and the rotary tillage tool sets are symmetrically installed at the two ends of the driving shaft; the rotary blade group comprises a plurality of blades which are arranged in the annular direction of the driving shaft, handle parts of the blades are provided with inserting grooves, the switching mechanism comprises a plurality of limiting parts which are arranged corresponding to the blades, when the limiting parts are inserted into the corresponding inserting grooves, the corresponding blades are locked for rotary tillage work, and when the limiting parts are separated from the inserting grooves, the corresponding blades are adjusted in a floating mode. According to the invention, through the cooperation of the rotary tillage tool bit and the switching mechanism, the effect of flexibly adjusting the working state of the blade under different working conditions is achieved, the obstacle is effectively avoided, the damage risk of equipment is reduced, the maintenance cost and the downtime are reduced, and meanwhile, the safety of operators is also ensured.
Owner:TAIZHOU KUNSHAN MECHANICAL & ELECTRICAL CO LTD

Matrix type plane temperature field monitoring system and method based on temperature-sensitive diodes

The invention discloses a matrix type temperature detection system and method based on temperature-sensitive diodes, the problems of complex wiring and large temperature drift of a traditional multi-node temperature measurement system are solved through M * N matrix layout, row and column time-sharing gating and constant current driving technologies, the system adopts an independent column constant current source to ensure the measurement consistency, and a high-precision ADC and a dynamic calibration algorithm are combined, so that the measurement accuracy is improved. And the precision of + / -0.2 DEG C is realized within the range of 50-150 DEG C. The method is particularly suitable for high-density temperature measurement scenes such as battery thermal management, electronic equipment overheating monitoring and the like.
Owner:SHANXI ZHITEXI NEW ENERGY TECHNOLOGY CO LTD

Control method of light source type medical beauty product with constant energy output

The invention discloses a control method for a light source type medical beauty product with constant energy output. Aiming at the problem that the later performance of the existing light source type medical beauty product is reduced due to fixed power output and light attenuation characteristics, the initial light source rated power PRATED is calibrated through a built-in light source light attenuation curve characteristic table. When a product works, the accumulated working time of the light source is recorded in real time, the corresponding light attenuation coefficient k is searched, and a new duty ratio signal is calculated according to the light attenuation coefficient k and PRATED to adjust power drive, so that the energy output of the target light source is maintained. The invention has the advantages of effectively overcoming the influence of light attenuation, controlling the output fluctuation of light source energy in an extremely small range in a long-time use process through experimental verification, ensuring the stable performance of the product in the whole life cycle, continuously providing a stable beauty effect and improving the user experience, and has important application value in the field of medical beauty.
Owner:DUFENG TECHNOLOGY (SHANGHAI) CO LTD

Page turning device and broadcast hosting teleprompter

The invention belongs to the technical field of teleprompters, and particularly relates to a page turning device and a broadcast hosting teleprompter. A fixing assembly used for placing manuscript paper is arranged at the top end of the first base plate and comprises a rotating shaft arranged at the top end of the first base plate, the bottom end of the rotating shaft is connected with a first motor, the first motor is connected with an external power source through a wire, and a positioning assembly is arranged on the outer wall of the bottom end of the rotating shaft. Page turning plates are uniformly and rotatably mounted on the peripheral side of the rotating shaft, and a driving assembly is arranged at the top end of the rotating shaft; through the cooperation of the fixing assembly and the driving assembly, when a broadcast host needs to carry out broadcast recording or practice, the problems that a display screen and glass are easy to wear, need frequent maintenance and cause fund waste when being used are avoided, the fund consumption for purchasing equipment is saved, and the frequency of equipment maintenance is reduced.
Owner:JIAMUSI UNIVERSITY

Magnetic suspension type ship motor-driven propeller

The utility model provides a magnetic suspension type ship motor-driven propeller which comprises a rotor, a stator and a flow guide mechanism. The stator comprises a machine shell, a coil fixing frame, a winding coil, a first fixing ring and a first annular magnet. The rotor comprises a magnet fixing frame arranged on the inner side of the coil fixing frame, a rotor magnet arranged on the magnet fixing frame, a propeller fixedly connected to the inner side of the magnet fixing frame, a second fixing ring fixedly connected to one end of the magnet fixing frame and a second annular magnet fixedly connected to the second fixing ring. The first annular magnet and the second annular magnet are opposite in homopolar mode, and the outer wall of the rotor and the inner wall of the stator are both covered with polytetrafluoroethylene films. The flow guide mechanism comprises a water outlet cover fixedly connected to one end of the outlet of the machine shell and a flow guide pipeline fixedly connected to the inner wall of the water outlet cover, flow guide plates are evenly distributed in the flow guide pipeline in the radial direction, the service life can be prolonged, working benefits are improved, and noise is reduced.
Owner:DONGGUAN TENGFEI POWER TECH CO LTD

An automatic water profile observation system based on wave energy

ActiveCN119309553Bavoid stickingMeet observation needsVessel cleaningHulls
The present invention relates to an automatic water profile observation system based on wave energy, belonging to the field of ocean observation technology. The system includes a water surface buoy unit, a cable and a weight connected in sequence, and the cable is provided with two baffles respectively located at the upper and lower ends of the cable and an automatic profile observation platform located between the two baffles; the automatic profile observation platform is used to monitor ocean parameters, and it has two cams relatively arranged on both sides of the cable, a vertically arranged slide cylinder and a slide rod arranged in the slide cylinder, and the two cams are connected to the slide rod. When the slide rod moves up and down, the slide rod drives the raised ends of the two cams to clamp or release the cable, and the side wall of the slide rod is provided with an elastic protrusion structure, and the inner wall of the slide cylinder is provided with a limiting structure. The limiting structure and the elastic protrusion structure cooperate with each other to limit the movement of the slide rod, and always keep one end of the slide rod extending from the slide cylinder and able to collide with the baffle. The system is suitable for a wide range of water monitoring needs.
Owner:ZHEJIANG UNIV

Fixing and placing device for electromechanical equipment

The invention discloses a fixing and placing device for electromechanical equipment, and relates to the technical field of fixing and placing, the fixing and placing device for the electromechanical equipment further comprises a clamping device, a machining table is fixedly installed on the surface of a workbench, and machining equipment is fixedly installed on the surface of the workbench; a motor is fixedly installed at the bottom of the workbench, and the clamping device comprises a linkage plate, a first connecting rod, a linkage rod, a second connecting rod, a sliding box, an electric push rod, a triangular rod, a first clamping plate, a first fixing rod, a telescopic sliding rod, a second clamping plate, a second fixing rod and a pulley. And therefore, the materials are effectively prevented from deviating or shaking in the machining process, the working precision of the equipment is effectively improved, meanwhile, abrasion of the equipment in the using process is reduced, and the service life of the equipment is prolonged.
Owner:JINAN MOFANGFENG ELECTRONIC TECHNOLOGY CO LTD

Cannabis sativa paste capable of improving constipation and process

The fructus cannabis paste comprises the following raw materials in parts by weight: 120 to 180 parts of fructus perillae, 280 to 320 parts of wheat, 200 to 240 parts of bulbus lilii, 125 to 175 parts of rhizoma dioscoreae, 50 to 100 parts of pericarpium citri reticulatae, 280 to 320 parts of fructus cannabis, 80 to 120 parts of semen armeniacae amarae, 180 to 220 parts of semen persicae, 180 to 220 parts of semen pruni, 180 to 220 parts of semen raphani, 30 to 40 parts of dried figs, 40 to 50 parts of pears and 25 to 35 parts of mulberries. The food has the advantages of quick effect and eating safety.
Owner:HANGZHOU FANGHUICHUNTANG HEALTH TECH CO LTD

Plasma cleaning device and semiconductor equipment

The utility model belongs to the technical field of semiconductor technology, and discloses a plasma cleaning device and semiconductor equipment. The plasma cleaning device comprises a remote plasma source, a first cleaning pipeline and a second cleaning pipeline, wherein the remote plasma source is used for generating plasma. The first cleaning pipeline is connected to the remote plasma source and the reaction chamber, and the second cleaning pipeline is connected to the same remote plasma source and the exhaust pipeline and is connected to the upstream of the exhaust control valve. According to the device, the plasma can be directly input into the reaction chamber and the exhaust pipeline through the first cleaning pipeline and the second cleaning pipeline respectively, so that the plasma is prevented from being inactivated before reaching the exhaust control valve, the exhaust control valve can be thoroughly cleaned, the phenomena of accumulation, blockage and blockage of byproducts are avoided, and the service life of the reaction chamber is prolonged. Therefore, the time cost and the labor cost of disassembly and cleaning are reduced, and the efficiency of semiconductor process equipment is improved.
Owner:JIANGSU MICROVIA NANO EQUIP TECH CO LTD

Preparation method of vanadium-aluminum-tin-chromium intermediate alloy for titanium alloy preparation

The invention relates to the technical field of preparation of vanadium-aluminum-tin-chromium intermediate alloys, and discloses a preparation method of a vanadium-aluminum-tin-chromium intermediate alloy for titanium alloy preparation, which comprises the following steps: raw material preparation: preparing vanadium, aluminum, tin and chromium with the purity of 99.9%, in the smelting process, the prepared vanadium, aluminum, tin and chromium are sequentially loaded into a vacuum induction smelting furnace through the vacuum induction smelting furnace, casting is conducted, alloy liquid in the step S2 is poured into a vacuum casting machine through the vacuum casting machine, and heat treatment is conducted, specifically, a casting in the step S3 is heated through a high-temperature furnace; surface treatment is conducted, specifically, the casting subjected to heat treatment in the step S4 is ground, polished and cleaned; through the operation of fixed-proportion preparation, the preparation of the specific vanadium-aluminum-tin-chromium intermediate alloy can be customized, and the flexibility of the method is improved, so that the performance and the application effect of the alloy are improved, the production cost and the quality control difficulty are reduced, and the reliability and the market competitiveness of the product are enhanced.
Owner:SHAANXI XINCHENYAN METAL MATERIALS CO LTD

Large-handling-capacity horizontal scraper discharging centrifugal machine and using method thereof

The invention discloses a large-handling-capacity horizontal scraper discharging centrifugal machine and a using method thereof. A driving motor included in the large-handling-capacity horizontal scraper discharging centrifugal machine provides power for the centrifugal machine, and the driving motor comprises a stator and a rotor; the transmission device realizes stable and efficient transmission of power of the driving motor, and adopts a herringbone toothed belt wheel to provide large torque output; the screen basket is used for centrifugally separating materials, and solid-liquid separation of the materials is achieved through centrifugal force generated by rotating the screen basket at a high speed; the scraper adopts a small-lead spiral blade design, and the small-lead spiral blade enables the scraper to scrape materials on the inner wall of the screen basket when the scraper rotates along with the screen basket; a feeding pipe of the feeding system is a circular pipeline, the inlet end of the feeding pipe is connected with the material conveying pipeline, and the outlet end of the feeding pipe is arranged on one side of the screening basket in the tangential direction. According to the centrifugal machine, the problems of processing capacity, transmission stability, feeding mode, maintenance convenience, part protection, environmental adaptability and the like of vertical and horizontal centrifugal machines in the prior art are solved.
Owner:BETHEL (SHANDONG) IND TECH CO LTD

Subway station ventilation pavilion opening closed water retaining equipment

The invention relates to the technical field of metro station ventilation pavilion opening water retaining, in particular to metro station ventilation pavilion opening closed water retaining equipment. A metro station ventilation pavilion opening sealing water retaining device is arranged at a ventilation pavilion opening and is characterized in that a blocking door plate stacking area capable of storing blocking door plates is arranged on one side of the ventilation pavilion opening, and the metro station ventilation pavilion opening sealing water retaining device comprises a guide rail system and a carrying system; the subway station flood control and waterlogging prevention system has the remarkable advantages of being efficient and rapid in response, high in waterproof performance, optimized in structure, capable of saving space, stable and safe in long-term use, easy to operate and maintain and the like, a brand new solution is provided for flood control and waterlogging prevention of a subway station, and the safety and emergency response capacity of a subway system are effectively improved; the method has important practical value and social significance.
Owner:GUANGZHOU METRO DESIGN & RES INST CO LTD +1

An underwater robot for pollution tracing

The present invention belongs to the technical field of underwater environmental monitoring, and specifically relates to an underwater robot for pollution tracing, comprising a body located underwater and a hull floating on the water, a winding mechanism being provided on the hull for automatically retracting and releasing cables connected to the body, the body controlling the depth and movement direction in the water respectively through longitudinal propellers and transverse propellers, a protective mesh cover and a transverse protective member being provided on the body to prevent debris in the water from entangled in the propellers, and in addition, a direction-changing limit ring, a direction-changing head and a baffle are designed at the connection between the body and the cable to relieve stress and prevent damage to the cable. The present invention has a reasonable structure and can operate stably and efficiently in a complex underwater environment, effectively solving the problems of inaccurate positioning, limited movement, easy entanglement of propellers with debris and easy damage of cables in the prior art.
Owner:WUHAN BOGAN SPACE TECH CO LTD

Decoupling control method and system for two-degree-of-freedom vibration suppressor of robot

The invention belongs to the technical field of robots, and discloses a decoupling control method and system for a two-degree-of-freedom vibration suppressor of a robot, and the method comprises the steps: analyzing the structural characteristics of a robot system, and designing a decoupling control strategy through a structural invariance principle; coupled vibration of force applied in the X direction in the Y direction and coupled vibration of force applied in the Y direction in the X direction are effectively eliminated. Compared with a traditional vibration control method, the multi-degree-of-freedom vibration suppression method has the advantages that the influence of a pose related mode and a coupling mode of the robot is fully considered, multi-degree-of-freedom vibration suppression can be efficiently realized in real time in a complex load and dynamic environment, and the adaptability and the control precision are relatively high. The technology has wide application prospects in the fields of robot precision machining, assembling, carrying and the like, and the stability, precision and working efficiency of a robot system can be remarkably improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Angle-adjustable supporting tool for moving ship on flat ground

The invention relates to the technical field of ships, and discloses an angle-adjustable flat ground ship moving supporting tool. The angle-adjustable flat ground ship moving supporting tool comprises a supporting part, a fixing rod and an adjusting part. The adjusting part comprises two fixing plates, a rotating groove is formed between the two fixing plates, a plurality of fixing holes are formed in the fixing plates, and the fixing holes are formed in the vertical direction at intervals and penetrate through the rotating groove; the supporting part comprises a supporting plate and a connecting plate, the supporting plate is fixedly connected to the top of the connecting plate and forms a supporting face matched with the outer walls of the head and the tail of the ship, the connecting plate is arranged in the rotating groove and rotationally connected with the fixing plate, a positioning hole is formed in the connecting plate, and the fixing rod can sequentially penetrate through the fixing hole and the positioning hole to fix the connecting plate and the fixing plate. The contact area with the outer wall of the ship is increased through the supporting faces of the supporting parts, the problem of deformation of the steel piers at the head and tail areas of the ship is solved, and safety is improved. The adjusting part can adjust the angle according to the curvature change of the ship to ensure good contact between the supporting surface and the outer wall of the ship and reduce the deformation risk of the steel pier.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD

Chemical waste gas treatment and purification environment-friendly device

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a chemical waste gas treatment and purification environment-friendly device which comprises a box body and a plasma purifier, the plasma purifier is fixedly installed in the box body, and an air inlet pipe and an air outlet pipe are fixedly installed on the two sides of the box body respectively. And connecting flanges are fixedly installed at the ends, away from each other, of the air inlet pipe and the air outlet pipe, a driving assembly is arranged in the air inlet pipe, a rotating shaft is horizontally and rotationally installed on the inner wall of one side of the box body, a rotating strip fixedly sleeves one end of the rotating shaft, and a cleaning strip is fixedly installed on the rotating strip. The waste gas purification device is reasonable in design and simple to operate, can effectively intercept and collect particle impurities in waste gas, can perform self-cleaning operation on the filter plate in the working process, can clean the particle impurities in the residue collecting box while not influencing the waste gas purification treatment work, and is convenient and fast to disassemble and assemble the filter plate.
Owner:XINJIANG XINBOFA CHEM CO LTD