62results about How to "Big change" patented technology

In order to provide a speed change transmission system which can be obtained compactly, while obtaining output at steplessly varied speeds over a large speed change range only by carrying out a simple shifting operation, the speed change transmission system has a hydrostatic stepless transmission to which engine drive is inputted. A planetary transmission device (P) has a plurality of planetary transmission mechanisms, for combining output of the stepless transmission and engine drive not undergoing speed change action by the hydrostatic stepless transmission. A plurality of transmission shafts are provided with a plurality of speed range setting clutches, switchable for converting the combined driving force from the planetary transmission device (P) to a driving force in a plurality speed ranges, and transmitting it to an output rotary member. The plurality of transmission shafts are juxtaposed and arranged in parallel.

The invention relates to an abnormal load detection method for cloud calculation on-line business, and belongs to the technical field of cloud calculation application. According to the method, information data of various load items of all hosts of a certain on-line business is collected and born by employing a fixed cycle sampling method; the information data of each load item of the current on-line business is processed to time sequences with fixed time intervals, and the time sequences of all load item data of the current business are obtained; discrete wavelet transformation of each time sequence of the on-line business is performed, statistics and analysis of each coefficient vector of an obtained coefficient matrix are conducted, and the probability of the abnormal load is calculated; the obtained probability and a confidence interval given by a confidence function are compared, and whether the abnormal load exists is determined; and a bearing server which is abnormal in the current on-line business is searched by employing the K-means clustering algorithm. Compared with the conventional method, according to the abnormal load detection method, higher accuracy can be obtained, and the adaptability is better.

An in-line coal-spraying monitoring system of blast furnace for monitoring the blocked coal-spraying branch pipe and automatically unblocking it by scavenging the branch pipe and its electromagnetic valve is composed of a pressure detecting system with pressure transducers arranged on coal spraying trunk and each branch pipe, a signal transmission system, a PLC control system for receiving the pressure signals of coal spraying trunk and branch pipes and determining the blocked branch pipe according to pressure difference, and an in-line automatic unblocking system.

The invention relates to an artificial wetland high-efficiency pre-aeration sewage treatment system, which comprises a bar screen, a primary sedimentation tank, a venturi, a splash board and an artificial wetland connected in turn, wherein the bar screen is positioned in the front of the primary sedimentation tank; the inlet of the gradually reducing part of the venturi is connected with the upper part of the primary sedimentation tank through a high-pressure pump, the throat part is connected with the atmosphere through an air inlet pipe, and the outlet of the gradually expanding part is provided with a jet pipe extending forwards; and the splash board is positioned above the artificial wetland in front of the jet pipe. The artificial wetland adopts a horizontal baffling structure, the water outlet is provided with a water storage tank, and the water storage tank is provided with a backflow pipe connected with the water inlet end of the artificial wetland. The artificial wetland high-efficiency pre-aeration sewage treatment system has a simple structure and reasonable process, and through the high-efficiency aeration of the venturi and the splash board, the artificial wetland high-efficiency pre-aeration sewage treatment system improves the biochemical reaction types and the reaction speed in the artificial wetland, improves the surrounding environment, and is helpful to improve the purification degree of the yielding water of the artificial wetland. The artificial wetland high-efficiency pre-aeration sewage treatment system has the advantages of simple structure, convenient operation and good adaptability, allows the sewage quantity to have large range of variation, and is mainly adapted to the treatment of domestic sewage.

The invention discloses a microbial fermentation optimizing method based on an artificial fish school algorithm. The method includes steps of establishing a microbial fermentation data set, dividing the microbial fermentation data set into a training data set and a testing data set randomly, constructing a BP neural network, using the training data set for training the BP neural network, performing binary encoding on each microbial fermentation control parameter according to the precision and data range of the fermentation control parameters, calculating the fitness value of each artificial fish by taking the BP neural network as the fitness function of the artificial fish school algorithm, applying a bunching operator or a rear-end operator on the current fish school, judging whether the fitness value is improved or not after the bunching operator and the rear-end operator are applied to the current artificial fish school, applying a foraging operator on the artificial fish school, calculating the fitness value of the artificial fish school and recording the optimal individual. According to the invention, the optimal control parameter combination can be acquired based on the current fermentation data and no experiment redesign is required.

The invention discloses a movable suspension type eddy-eliminating beam system for eliminating a vertical-axis eddy at a water inlet. The movable suspension type eddy-eliminating beam system comprises a vertical guide rail, a sliding trolley, an eddy-eliminating beam and winches; the vertical guide rail is arranged on the wall surface of a tunnel face of the water inlet; the sliding trolley can slide up and down along the vertical guide rail; the eddy-eliminating beam is suspended on the water surface and is used for eliminating the vertical-axis eddy; one winch is arranged on one side of the upstream part of a bank of the water inlet, and one winch is arranged on one side of the downstream part of the bank of the water inlet; one end of the eddy-eliminating beam is arranged on the sliding trolley through a planar support pivot capable of rotating in the horizontal plane; and a steel rope on the winch arranged on one side of the upstream part of the bank of the water inlet, and a steel rope on the winch arranged on one side of the downstream part of the bank of the water inlet are connected with towing points on the eddy-eliminating beam for adjusting and controlling the position of the eddy-eliminating beam on the water surface. The eddy-eliminating beam can float up and down with the change of the water level and can rotate on the water surface plane before a tunnel, so that the movable suspension type eddy-eliminating beam system has the advantages of wide waterhead adaptation range, large change amplitude and the like, and can prevent an air entrapping vertical-axis eddy from being formed in front of the water inlet, and thus the adverse effects on various buildings by the vertical-axis eddy are eliminated.

The invention relates to an artificial wetland sewage treatment system adopting rotational flow active sludge method pretreatment, which comprises a primary sedimentation tank, a venturi, a rotational flow active sludge pool, a secondary sedimentation tank and an artificial wetland, wherein a bar screen is positioned in the front of the primary sedimentation tank; the inlet of the gradually reducing part of the venturi is connected with the upper part of the primary sedimentation tank through a high-pressure pump, the throat part is connected with the atmosphere through an air inlet pipe, and the outlet of the gradually expanding part is provided with a jet pipe extending forwards; the jet pipe is tangentially connected with the lower part of the rotational flow active sludge pool, and the shape of the cross section of the rotational flow active sludge pool is round; the yielding water of the rotational flow active sludge pool is connected into the secondary sedimentation tank, and the yielding water of the secondary sedimentation tank is connected into the artificial wetland; and the artificial wetland adopts a horizontal baffling structure, and the water outlet is provided with a water storage tank. The artificial wetland sewage treatment system has the advantages of simple structure, convenient operation, good adaptability, high oxygen content in the sewage and good purification effect, and is mainly adapted to the treatment of domestic sewage.

The invention discloses a continuous rigid frame bridge suitable for a high-waterline impoundment reservoir area. The pile type continuous rigid frame bridge can meet the requirements for strength and flexibility without a common pier. The pile type continuous rigid frame bridge comprises a girder, two girder connecting parts and a pile group foundation, wherein the two girder connecting parts stride the girder, the pile group foundation is composed of a set of filling piles, and the filling piles are in rigid connection with the girder connecting parts. The filling piles comprise upper columns and lower columns, wherein the upper columns are connected with the girder connecting parts, and the lower columns are poured into a bed rock. Longitudinal steel bars are arranged on the upper columns after the following carrying capacity limiting condition calculation and the normal using limiting condition calculation are carried out. Longitudinal steel bars are arranged on the lower columns according to the file foundation requirement. Pile transition sections are arranged between the lower columns and the upper columns, and the longitudinal steel bars in the pile transition sections are the same as longitudinal reinforcing bars of the upper columns. The invention further provides a construction method for the pile type continuous rigid frame bridge. The pile type continuous rigid frame bridge has the advantages that the anti-seismic requirement is met, construction is convenient, construction cost is saved, and the construction period is shortened.

The invention relates to a method for improving the photosynthetic capacity of tall fescue by adopting saline soil filled with waste crumb rubber, which is characterized by comprising the following steps of: (1) substrate compound and preparation: placing 1000g of sand at a bottom layer, placing 20g of waste crumb rubber with the diameter of 0.5-1 mm on the bottom layer, placing 1500g of saline soil on the third layer and coating a layer of 100g loam soil on the topside, wherein the saline soil contains 0.2-0.8 percent of NaCl; after tall fescue on a lawn sprout fully and stably, transplanting the tall fescue to an experimental geobotany and deeply burying in soil by adopting a potting method; and (2) after grass on the lawn grows stably, selecting 10 grasses after 60d, measuring the photosynthetic capacity and the biomass liveweight on the ground and underground.

The invention provides a multi-freedom-degree mechanical arm used for an engineering vehicle. The mechanical arm comprises a base, a rotating disc, a stand column, a cross beam, a pitching drive oil cylinder, a horizontal adjusting oil cylinder A, and a horizontal adjusting oil cylinder B, the base, the rotating disc, the stand column and the cross beam are sequentially connected, the pitching drive oil cylinder is hinged between the stand column and the cross beam, and is used for driving the cross beam to swing up and down with the hinge point of the cross beam and the stand column as the center, rod cavities of the horizontal adjusting oil cylinder A and the horizontal adjusting oil cylinder B communicate with rodless cavities, and a closed loop is formed between the horizontal adjusting oil cylinder A and the horizontal adjusting oil cylinder B; the mechanical arm is provided with multiple freedom degrees, and a safety table on the tail end of the cross beam is conveyed to the anyposition within the space work range. The invention further provides the engineering vehicle with the multi-freedom-degree mechanical arm, various work devices can be rapidly and reliably mounted on the mounting table, the mounting table can tend to the level most time, posture changes of a work device during work in the space is reduced, and stability is improved.

The invention relates to a double-acting pressure relief blowout preventer, which includes an overflow pipeline, a valve body and a valve driver. The valve body includes a valve body pipeline. A pressure-sensing reed is sealed at the top of the pressure-sensing tube, a partition block is connected to the other end of the pressure-sensing tube, and a floating piston is connected to the other end of the pressure-sensing tube through the partition block, and the floating piston is slidingly connected to the partition block through a push rod. A valve block is fixed on the end of the push rod, connecting nozzles are provided at both lateral ends of the flow passage, a sliding hole is provided in the middle of the flow passage, and an annular conduction groove is provided on the valve block. A pressure relief pipeline and a pressure relief pipeline communicating with the connecting nozzle are arranged in the overflow pipeline, and the diameter of the pressure relief pipeline corresponds to the width of the conduction groove; a pressure sensing plate is connected to the top of the pressure sensing tube; A pressure-sensing cavity is provided at the end of the valve body pipeline facing away from the flow-through pipeline, and the pressure-sensing cavity is connected with the oil pipeline, and a pressure-discharging hole is provided in the middle of the pressure-sensing plate.

The invention belongs to the technical field of solar cells, in particular to a SiO2 / TiO2 double-layer antireflection film and a preparation method thereof. A SiO2 acid-base sol and a TiO2 sol are respectively prepared by a sol-gel method, and the SiO2 / TiO2 double-layer antireflection film is prepared by coating the SiO2 acid-base sol and the TiO2 sol on a glass substrate. The SiO2 acid-base sol is obtained by mixing a SiO2 acid sol and a SiO2 base sol according to a ratio of 1: 2-4, the SiO2 acid-base sol is diluted and added with SiO2 powder, the TiO2 sol is diluted, and the SiO2 / TiO2 double-layer antireflection film is prepared by first coating the SiO2 sol and then coating the TiO2 sol. The SiO2 / TiO2 double-layer antireflection film prepared by the method has high light transmittance,small fluctuation of light transmittance in the whole testing wavelength range, small change range, low wavelength selectivity and good hydrophilicity of the film layer, and is an antireflection filmwith a moth-eye structure with excellent performance.

The invention relates to a high-efficiency pre-aeration aerobic biochemical sewage treatment system, which comprises a bar screen, a primary sedimentation tank, a venturi, a splash board, an aerobic tank and a secondary sedimentation tank connected in turn, wherein the bar screen is positioned in the front of the primary sedimentation tank; the inlet of the gradually reducing part of the venturi is connected with the upper part of the primary sedimentation tank through a high-pressure pump, the throat part is connected with the atmosphere through an air inlet pipe, and the outlet of the gradually expanding part is provided with a jet pipe extending forwards; the splash board is positioned in the front of the jet pipe and above the aerobic tank; a fixed packed bed is arranged in the aerobic tank; and the secondary sedimentation tank is positioned behind the aerobic tank and is connected with the water outlet of the aerobic tank. The high-efficiency pre-aeration aerobic biochemical sewage treatment system has the advantages of simple structure, convenient operation, good adaptability, high oxygen content in the sewage and good purification effect, and is mainly adapted to the treatment of domestic sewage.

The invention discloses an interference jet printing method in variable dot printing of an inkjet printer. A variable dot spray nozzle of the inkjet printer provides interference jetting dot during evenly distributing dots for printing, that is, size of the dots at the original evenly distributed dot positions is changed, the average total value of the changed jetting dots is the same as that of the dots before the change so that color depth are identical.

A helical tomotherapy image quality improvement method relates to the helical tomotherapy image quality improvement method based on the retina-cerebral cortex theory. The method mainly comprises four steps of 1 using a computer to read a helical tomotherapy image under a MATLAB environment; 2 carrying out the bilateral filtering denoising on the image; 3 carrying out the contrast promotion on the image based on the retina-cerebral cortex theory; 4 using a Gauss-Zagel iteration method to enhance the edges of the image. The helical tomotherapy image quality improvement method of the present invention enables the problem that the original helical tomotherapy image is more in noise, poor in contrast and unclear in edge to be solved, obtains a better quality enhancement result, and has the wide application prospect in the helical tomotherapy field.

The invention provides a method for identifying the weathering oxidative deterioration degree of coking coal, and relates to the technical field of coal identification. According to the method for identifying the weathering oxidative deterioration degree of the coking coal, the actual Giseeler maximum fluidity and the reference Gieseler maximum fluidity of the coking coal are used as indexes for identifying whether the coking coal is weathered and oxidized or not, and the indexes are remarkable in change amplitude and change trend in a short time; and the weathering oxidative time can be quantitatively judged, the weathering oxidation within three months can be accurately judged, the problems in the prior art can be effectively solved, and meanwhile, the operation is convenient.

The invention provides a wirecord fabric detection and calibration device and method, the detection and calibration device comprises a detection mechanism, a bearing mechanism and a lifting mechanism, the detection mechanism comprises a magnetic sensor module, the magnetic sensor module comprises a substrate, a plurality of magnetic sensitive elements, a processing unit and a back magnetic unit, and the magnetic sensor module is used for acquiring a detection signal and a calibration signal; the bearing mechanism comprises a plurality of rollers which are arranged below the wirecord fabric and distributed on the two sides of the detection mechanism and is used for bearing the wirecord fabric, and the lifting mechanism is used for adjusting the distance between the breadth of the wirecord fabric and the magnetic sensor module. The wirecord fabric detection and calibration device provided by the invention can eliminate the influence of wirecord fabric on the calibration process, is particularly suitable for a large-format wirecord fabric production line, is convenient to operate and easy to implement under the conditions that the field space is limited and the detection device cannot slide out of the workbench, can meet the requirements of calibration and scanning precision, and is suitable for large-format wirecord fabric production lines. The application range is wide.

The invention discloses a wind power generating set gear case. A bearing used in the gear box is a hollow cylindrical roller bearing. Preferentially, the hollow cylindrical roller bearing comprises an outer ring, a hollow cylindrical roller and an inner ring; and the hollow cylindrical roller is a rolling body of the bearing. Preferentially, in the hollow cylindrical roller bearing, the diameter of an inner ring raceway is slightly larger than the diameter of an incircle of the rolling body arranged in an outer ring raceway; and interference fit is realized between the inner ring raceway and the incirle. Compared with a solid cylindrical roller bearing used by the prior art, the rolling body of the hollow cylindrical roller bearing is a hollow roller; as the inside of the inside roller has a hollow structure and good deformation capability, the bearing can adopt an interference fit form with the diameter of the inner ring raceway slightly larger than that of the incircle, thereby realizing the stress of the roller, prolonging the service life of the bearing and reducing the fault of the bearing; and the bearing can also reduce the diameter pendulum of a shaft and improve the cooling effect. For the reasons given above, the wind power generating set gear case has longer fault-free use time.

The invention provides a flexible sensing layer, a preparation method of a flexible sensor and the flexible sensor, and relates to the technical field of sensors, and the preparation method of the flexible sensing layer comprises the following steps: preparing a flexible sensing layer matrix with a multi-stage pore structure by using a 3D printing technology; a thermoelectric material coating is additionally arranged on the surface of the flexible sensing layer substrate; and performing plasma treatment on the surface of the thermoelectric material coating to obtain the flexible sensing layer. According to the invention, the internal contact area in a pressure state is changed through the flexible sensing layer substrate with the multi-stage secondary pore structure, the variation amplitude of resistance is influenced, and the pressure sensitivity of the flexible sensing layer is improved; the thermoelectric material coating is additionally arranged, so that the temperature resistance effect is reduced, and signal crosstalk between resistance and thermoelectric voltage signals is reduced; the surface of the thermoelectric material coating is subjected to plasma treatment, so that the carrier concentration is improved, the Seebeck coefficient is further improved, and the effect of improving the temperature sensitivity of the sensor is achieved.

The invention discloses a manufacturing method of oriented silicon steel and a spraying method of a magnesium oxide coating layer of the oriented silicon steel, and belongs to the technical field of metallurgical technologies. The manufacturing method of the oriented silicon steel comprises the following steps: before a silicon steel sheet enters a drying furnace, carrying out the spraying process of the magnesium oxide coating layer of the oriented silicon steel; during spraying of the magnesium oxide coating layer of the oriented silicon steel, placing the silicon steel sheet in a spraying chamber which is equipped with an operating constant temperature and constant humidity set, operating the constant temperature and constant humidity set to create a constant temperature and constant humidity environment in the spraying chamber, and then completing the spraying process of the magnesium oxide coating layer of the oriented silicon steel in the spraying chamber. Therefore, the temperature and the humidity of the magnesium oxide coating layer during spraying can be controlled, and the phenomenon of a relatively large change amplitude of the moisture content of the sprayed magnesium oxide coating layer is avoided; the silicon steel sheet treated by the spraying process of the magnesium oxide coating layer of the oriented silicon steel can enter the drying furnace for high temperature annealing process so as to guarantee the subsequent production quality of a bottom layer of the silicon steel sheet.

The invention discloses a method for packaging finished butadiene styrene rubber product pieces through packaging bags. The problem that it is not convenient to package finished product pieces on an existing assembly line is solved. The method includes the steps of S1, piling the sheet packaging bags in a storage chamber according to requirements; S2, adsorbing and lifting one packaging bag through a contact head and a lifting cylinder; S3, inserting an insertion piece on a swing rod into a bag mouth to support the bag mouth open under the action of a driving cylinder; S4, making a swing frametogether with the packaging bag swing towards the outside through the driving cylinder, making the mouth of the packaging bag sleeve two sleeve plates in an inclining state, and making the two sleeveplates in a vertical state and the bag mouth tightened through a vertical cylinder after the mouth of the packaging bag sleeve the two sleeve plates in place; and S5, making each finished product piece out of a connecting base enter the corresponding packaging bag through a gap between the two sleeve plates, and making the packaging bag fall onto a conveying belt on the lower side under the action of gravity and conveyed to the outside by the conveying belt so that the bag mouth of the packaging bag can be sewn and sealed by a sewing device.

The present invention puts forward a method for controlling an external rotor electric machine to change an output parameter and an external rotor electric machine. The external rotor electric machine is provided with two external rotor electric machine units therein, a mechanical one-way clutch or an electromagnetic clutch is utilized to realize that a second rotor is controlled to connect or disconnect a first rotor. The second rotor is controlled to connect or disconnect the first rotor according to service condition and operating characteristic requirements, so as to obtain the most suitable dynamic characteristics and regenerative braking characteristics, thus the high-output ultrathin external rotor electric machine is obtained with a low cost, and the output parameters of the electric motor have a large variation range, thereby overcoming the vicious cycle between a high cost and a low yield of the special external rotor electric machine in the prior art.

A front section of a motor vehicle includes a bumper shell (6), a bumper cross member and a shock sensor arranged at various locations inside a central intermediate space between the bumper shell and the bumper cross member. The bumper shell extends beyond the ends of the bumper cross member in the direction transverse to the vehicle. Extensions are attached to the ends of the bumper cross member, and the shock sensor is also distributed in various locations in peripheral intermediate spaces between the extensions and the bumper shell.

The invention provides an active pay-off system with variable thread speed and constant tension. The active pay-off system with variable thread speed and constant tension comprises a platform, a thread tray, a motor drive device, a thread pressing rod, a double-guide-wheel thread tightener, a shaft angle sensor, a guide wheel, a tension controller, a thread guiding rod and a pay-off tension control system. The motor drives the device to drive the thread tray to rotate, a silk thread is wound on the thread tray, the silk thread drawn from the thread tray passes through the thread pressing rod so as to form a wrap angle and enters the double-guide-wheel thread tightener, the silk thread is drawn from the double-guide-wheel thread tightener and then passes through the guide wheel so as to enter the tension controller, and the silk thread passing through the tension controller is drawn through the thread guiding rod. According to the active pay-off system with variable thread speed and constant tension provided by the invention, through the joint action of the motor drive device, the double-guide-wheel thread tightener and the shaft angle sensor, the closed-loop control of the pay-offspeed can be realized. Compared with a passive pay-off system characterized by fixing the thread tray on a non-driving device, active pay-off can be realized, and the control system controls the drivedevice to actively adjust the pay-off speed according to an angle value detected by the shaft angle sensor, so that the occurrence of thread breaking or silk thread loosening can be prevented.

The invention discloses an island detection method for a droop control grid-connected inverter. The method is implemented specifically according to the following steps: 1, a three-phase grid-connectedinverter main circuit system is built; 2, output active power and reactive power of the three-phase grid-connected inverter are calculated; 3, an improved P-f droop controller with disturbance k(f-f<g>) / s added is utilized to calculate reference output of voltage amplitude and phase; 4, difference between the reference voltage and phase and actual voltage and phase is calculated to obtain an error voltage value as reference input of an outer ring regulator, output of the regulator is reference input of inner ring current, difference between the reference input of the inner ring current and actual current is calculated to obtain an error current value as input of an inner ring regulator, and finally, an output modulation signal is obtained; and 5,the value of |d[delta][theta] / dt|=|k(f-f<g>)| is monitored in real time to perform island judgment. According to the island detection method for a droop control grid-connected inverter, on the basis of a traditional island monitoring droop improvement method, integration is added for the disturbance part, the amplitude of |d[delta][theta] / dt| is increased and stable amplitude is maintained, thereby avoiding island misjudgment.

The invention relates to a secret-involved computer file content maintenance system, comprising a lattice camera and component data extraction equipment, the lattice camera is arranged on a panel of user equipment and used for shooting facial images of a user, so as to obtain multi-frame facial images, continuous in time, of the user and output the multi-frame facial images, continuous in time, ofthe user; and the component data extraction equipment is used for receiving the multi-frame facial images of the user in a preset time interval, and executing the following processing on each frame of the facial images of the user: analyzing a red component, a green component and a blue component of each pixel point in the facial images of the user, determining the sum of the red components of all the pixel points, so as to be taken as the red component sum of the facial images of the user, determining the sum of the green components of all the pixel points, so as to be taken as a green component sum of the facial images of the user, and determining the sum of the blue components of all the pixel points, so as to be taken as a blue component sum of the facial images of the user. By virtueof the secret-involved computer file content maintenance system provided by the invention, a secret-involved file can be effectively avoided from being saved by mistake.

The present invention relates to an intelligent management system for push information, comprising: a push setting device, which is set in a tablet computer, and is used to set whether to allow push related information for each APP installed on the tablet computer. For any APP, If it is set to allow push related information, then the push identification of the APP is set to 1, if it is set to not allow push related information, then the push identification of the APP is set to 0; TF storage device is used to save the tablet computer Each push identification corresponding to each APP that has been installed on the tablet; the APP detection device is used to detect the preset number of APPs that are most frequently used on the tablet computer within the latest preset time period. The invention also relates to a push information intelligent management method. Through the present invention, the APP information is pushed only when the owner of the machine is verified, thereby preventing the owner's privacy from being leaked.