90results about How to "Realize flexible control" patented technology

The invention provides a multi-stage supercharging flexible air system with an electric supercharging function for an engine. The multistage supercharging flexible air system involves an electric supercharger, the engine, a turbocharger, an air storage tank and a controller, wherein an air inlet communicates with the air inlet end of a first air compressor of the electric supercharger through a pipeline, the air inlet communicates with the air inlet end of a second air compressor of the turbocharger through a pipeline, and a one-way valve is arranged on the pipeline; the air outlet end of thefirst air compressor communicates with the air inlet end of the second air compressor through a pipeline; the air outlet end of the second air compressor communicates with an air inlet pipe of the engine through a pipeline via an air inlet intercooler and an air inlet heater; an air outlet pipe of the engine communicates with a turbine air inlet end of the turbocharger; the output end of the controller is electrically connected with a motor of the electric supercharger; the motor is used for driving the first gas compressor to operate; and a turbine of the turbocharger drives the second air compressor to operate through exhaust energy of the air outlet pipe of the engine.

The invention discloses a multiclamp type stretch forming machine and relates to plastic processing equipment for curve forming of plates, belonging to the field of mechanical engineering. The machine mainly comprises clamping mechanisms (1), a stretching mechanism (2) and a stand (3), wherein a row of clamping mechanisms (1) are respectively distributed at both sides of the stand (3); each clamping mechanisms (1) is provided with a lower connecting hole (4) and a rear connecting hole (5); and all the connecting holes are respectively connected with the stretching mechanism (2) by pin shafts or cardan joints. The machine can realize the flexible control of a plurality of clamps, ensure that a workpiece is more easily attached to a die in the stretching process, obviously improve the material utilization ratio of the workpiece and obtain higher workpiece forming effect.

The invention discloses an automatic cleaning machine for workpieces. The automatic cleaning machine mainly comprises a truss type rack track, a trolley, a hopper, a lifting air cylinder and a servo motor, wherein wheels of the trolley are gear type wheels; the rack track is transversely arranged above a rinse tank; the trolley moves on the rack track through the gear type wheels; the lifting air cylinder and the servo motor are fixed on the trolley; the hopper loading the workpieces is suspended on the lifting air cylinder; the air cylinder is arranged perpendicular to the rinse tank, so that the workpiece hopper can move vertically; and the servo motor drives the trolley to locate and move through a synchronous belt. The automatic cleaning machine for the workpieces is simple in structure and low in cost, realizes the effects of high automation degree and controllable washing quality, and improves the production efficiency greatly.

The invention discloses a gasoline direct spray oil sprayer, which is arranged in a combustion chamber directly. The gasoline direct spray oil sprayer comprises an oil sprayer assembly, a needle valve component and an oil nozzle matching part, wherein the oil sprayer assembly comprises an oil filter component and a solenoid valve component; the needle valve component is arranged in the oil nozzle matching part; the solenoid valve component comprises an iron core, an electromagnet, a spring and a spring upper base, wherein the upper part of the iron core is connected with the oil filter component and the lower part of the iron core is connected with the oil nozzle matching part; the electromagnet is inserted from the small end of the oil nozzle matching part and is connected with the oil filter component; an axial inner bore serving as an oil duct is formed in the iron core; the spring upper base and the spring are arranged in the axial inner bore; the upper end of the spring is butted against the spring upper base, and the lower end of the spring is butted against the needle valve component; and an adjusting cushion block for adjusting the stroke of the needle valve component is arranged between the oil nozzle matching part and the iron core. The gasoline direct spray oil sprayer has good atomizing performance, simple structure, and low machining difficulty, can accurately control the oil spray amount, and is convenient to assembly.

The invention discloses a method for reactive power control of voltage unbalance sudden rise of a double-feed wind generator set power network. The method is characterized by comprising the following steps: 1, decoupling positive and negative sequences of the voltage of a stator of a double-feed motor; 2, calculating the reactive current of the stator; 3, calculating the proportion of positive sequence reactive power in total reactive power; 4, calculating and synthesizing a current instruction value of a rotor; and 5, performing closed-loop control on the current of the rotor. By adopting the method disclosed by the invention, the distribution of the stator current and positive and negative sequence reactive power can be controlled, thereby achieving a target of performing compound control on the degree of asymmetry of generator terminal voltage and reactive power ripple rejection.

The invention discloses an intelligent power distribution and utilization flexible control system. The intelligent power distribution and utilization flexible control system comprises a transformer, a three-phase rectifier, at least one single-phase inverter and at least one three-phase inverter. The three-phase rectifier converts a three-phase alternating current produced by the transformer into a direct current which is output to the inverters, the single-phase inverters convert the direct current into single-phase alternating currents with adjustable frequency and amplitude, and the three-phase inverters convert the direct current into three-phase alternating currents with adjustable frequency and amplitude. According to the intelligent power distribution and utilization flexible control system, the method that the three-phase alternating current is rectified and then inverted is adopted, the problem that a great deal of single-phase electric equipment is directly connected to a power supply grid to cause three-phase unbalance is solved, damage to power transmission and distribution equipment and the electric equipment is reduced, and reliability, economical efficiency and power quality of power supply are improved. Besides, the intelligent power distribution and utilization flexible control system achieves clear work division of modules, is easy to design, build and maintain, operates easily, and achieves convenient system expansion and upgrading.

The invention provides an all-digital variable polarity multifunctional square-wave pulse welding source, and relates to the technical field of welding equipment. The all-digital variable polarity multifunctional square-wave pulse welding source is characterized in that a main circuit and a control circuit are included; the main circuit comprises a rectification filtration module, a front stage inversion module, a medium frequency voltage transformation module, a rapid rectification filtration module and a rear stage inversion module which are sequentially connected; the rectification filtration module is connected with a three-phase AC input power source, and the rear stage inversion module is connected with an electric arc load; the front stage inversion module, the medium frequency voltage transformation module, the rapid rectification filtration module and the rear stage inversion module are all connected with the control circuit, so that power output is controlled by the control circuit. The five sorts of current waveforms, namely direct currents, direct current pulses, square waves, square wave pulses and pulse square waves can be output through the welding source, meanwhile, the main circuit of the welding source is of a double-inversion structure, and thus the good electric energy conversion efficiency and dynamic response performance can be achieved.

The invention discloses a strong-wind-self-protecting indicating plate and a control method thereof. The indicating plate comprises an upright column, a cross rod, an indicating plate body, a wind force or air velocity transducer, a connecting mechanism, a flexible unlocking mechanism and a control system, wherein a supporting seat is arranged on the upright column, and a shaft sleeve rotatably sleeving the supporting seat is arranged on the cross rod; the connecting mechanism is arranged between the upright column and the cross rod and comprises a rigid connection state and a flexible connection state which can be mutually switched; the flexible unlocking mechanism acts under the control of the control system, and thus, the connecting mechanism can be switched between the rigid connectionstate and the flexible connection state; the control system receives signals from the wind force or air velocity transducer and sends instructions to the flexible unlocking mechanism. The indicatingplate disclosed by the invention can be switched between rigid connection and flexible connection, and flexible unlocking is carried out when air velocity reaches a threshold value, so that a strong-wind-self-protecting function is achieved.

The invention relates to a demodulating device of linear variable differential transformer, and a soft demodulating method thereof. The demodulating device comprises a computer for producing an excitation voltage signal and computing stroke of a measured device; an analog output acquisition card for providing a required excitation voltage signal to a LVDT (Linear Variable Differential Transformer); a sine wave power amplifier for amplifying the excitation voltage signal output by the analog output acquisition card; the LVDT for producing a sinusoidal voltage signal when the iron core follows the measured device to move back and forth; and an analog input acquisition card for collecting the sinusoidal voltage signal output by the LVDT. The demodulating device adopts the LVDT signal soft demodulating technology and corresponding hardware control software, so that the demodulating device adapts to the parameter variation of the LVDT. Therefore, the soft control of a test is realized, and the maintenance cost and the time for manufacturing the demodulating device are saved.

The invention relates to a high magnetostriction coefficient Fe-Ga based thin strip and a preparation method thereof. According to the high magnetostriction coefficient Fe-Ga based thin strip and thepreparation method thereof, slabs of die casting, slab continuous casting, thin slab continuous casting and thin strip continuous casting are adopted, and simple and efficient scale production can berealized by using traditional rolling and annealing processes; an inhibitor system of low temperature intrinsic inhibitors and nitriding is established, and heat treatment and the rolling process arecontrolled to precipitate fine Cu2S, Nb(C,N) and V(C,N) or composite precipitates thereof as main intrinsic inhibitors; when the intrinsic inhibition is insufficient, nitriding is used for supplementing and forming nitrides such as AIN or BN before the secondary recrystallization annealing to achieve flexible control of the inhibition; cold rolling parameters are fine controlled to ensure primaryrecrystallization to obtain fine and uniform organizations and favorable textures, the coordinated matching of the organizations, the textures and the inhibitors before secondary recrystallization isachieved, and perfect and sharp secondary recrystallization of texture Goss ({110}(001)) is obtained. The magnetostriction coefficient (3/2) lambda s of a Fe-Ga based thin strip finished product is ashigh as 220-370ppm.

The invention belongs to the technical field of metal surface grinding, and relates to a robot flexible grinding method for surface defects of a steel plate. A robot grinding system adopted by the method comprises a robot system and a flexible grinding system. The technical parameters such as The grinding track, the grinding rotating speed, the grinding force and the grinding frequency are effectively limited, flexible control over automatic grinding of a robot is achieved, secondary damage caused by rigid contact between machines and metal is avoided, the problems of uneven local ground edgesand the like are solved, automatic high-efficiency grinding is kept, and meanwhile the regular, attractive and smooth grinding effect is achieved.

The invention relates to a fuzzy control system and a realization method thereof for a medical robot. The fuzzy control system and the realization method thereof for the medical robot comprises a fuzzy reasoning device which is arranged on a micro controller and a realization method of the fuzzy control system used for the medical robot, wherein the fuzzy reasoning device comprises an outside interaction module which is used for inputting fuzzy control rules, the outside interaction module is in communication connection with a storage module which is used for storing fuzzy models, the storage module is in communication connection with a fuzzy logic decision module which is used for establishing fuzzy models, the storage module and the fuzzy logic decision module are both in communication connection with a fuzzification interface which is used for inputting parameters, the fuzzy logic decision module is in communication connection with a simulator and a defuzzification interface which is used for outputting the parameters, and the defuzzification interface is in communication connection with the outside interaction module. By means of the fuzzy control system and the realization method thereof for the medical robot, the technological means of the outside interaction module, the storage module, the fuzzy logic decision module and the simulator is adopted, so that the medical robot has certain intelligence and assists a doctor to make a reasonable therapeutic schedule.

The invention discloses a flexible water-jet guided laser micro-machining system and method. The flexible water-jet guided laser micro-machining system comprises an optical fiber transmission unit, aworkbench unit and a high-pressure liquid supply unit. The optical fiber coupling unit comprises an optical fiber fixing and switching module and a beam coupling transmission module. The beam couplingtransmission module comprises a coupling body, an upper pressure head and a lower nozzle holder. The end of a flexible optical fiber is fixed in a liquid cavity between the upper pressure head and the lower nozzle holder through the optical fiber fixing and switching module. A water inlet in the coupling body communicates with the liquid cavity. A nozzle block is arranged on the lower nozzle holder, and a spray hole in the nozzle block communicates with a nozzle on the lower nozzle holder. The coupling body is clamped on a manipulator of a robot. Stepless pressure-adjustable high-pressure water output by the high-pressure liquid supply unit is collected into the liquid cavity via water inlets to form a low-pressure stable water flow. The workbench unit comprises a three-axis linkage workbench. A clamping and fixing table board of workpieces is arranged on the workbench through a water tank. The flexible water-jet guided laser micro-machining system is simple, compact and flexible in structure, and multi-dimensional flexible micro-machining of the workpieces can be achieved.

The invention discloses an automatic strapping machine, and relates to the technical field of automatic strapping machines, in particular to an automatic strapping machine. The automatic strapping machine comprises a bottom plate and a fixing plate, wherein a placing plate is fixedly connected to the upper portion of the bottom plate, an auxiliary rotating wheel is movably connected in the placingplate, a main rotating wheel is arranged on the left side of the auxiliary rotating wheel in parallel, a belt is movably connected to the outer wall of the main rotating wheel, the fixing plate is located at the rear end of the belt, a mounting sleeve is movably connected to the upper portion of the fixing plate, a stand column is movably connected in the mounting sleeve, a wire fixing disc is movably connected to the outer wall of the stand column, and a rolling disc is perpendicularly arranged above the stand column. According to the automatic strapping machine, through cooperation of a steel wire conveying and correcting device, a bridge connecting plate conveying and positioning device, a steel wire automatic grabbing and knotting device and five machining procedures, the device can set different technological processes according to different bridge connecting plate specifications, flexible control over a whole system is achieved, and the robustness of equipment is enhanced.

The invention discloses a flexible control method of a forging press, and belongs to the technical field of forging press control. The flexible control method of the forging press is characterized by comprising the following steps: S100, forging and pressing speed control: a forging and pressing speed is adjusted by detecting the speed of a sliding block of the forging press and further inputting the flow of an oil cylinder; and S200, flexible pressure control: flexible pressure relief control is realized by controlling the holding pressure of a die assembly cylinder of the forging press and controlling three-stage pressure relief and proportional overflow. By adopting the technical scheme, the invention provides the pressing speed control method based on an integral separation PID method; and the stroke of the sliding block is monitored in real time, and the flexible pressure relief control over the forging press is carried out by combining a three-level pressure relief valve group and a cosine curve control method of a proportional overflow valve according to the influence of an unloading process on the vehicle shape quality of wheels.

An oriented high silicon steel strip and an efficient annealing-mode preparation method thereof belong to the technical field of metallurgy. The oriented high silicon steel strip comprises the following ingredients (by weight): 4.5-7.0% of Si, C being less than or equal to 0.1%, 0.005-0.05% of Als, 0.003-0.01% of N, 0.03-0.3% of Mn, Cu being less than or equal to 0.5%, 0.003-0.035% of S, 0.02-0.4%of Nb, 0.005-0.1% of V, and the balance Fe and impurities. The method comprises the following steps: casting according to the composition design to obtain a slab, hot-rolling, carrying out acid pickling, cold-rolling after acid pickling, carrying out decarburizing annealing on the slab, carrying out nitriding treatment, and finally carrying out secondary recrystallization annealing. By controlling an inhibitor system, the rolling technology and the annealing technology, short-process annealing-mode preparation of the oriented high silicon steel is realized, production efficiency is raised, production cost is reduced, and the product has excellent comprehensive performance and is thinner in thickness.

The invention belongs to the technical field of polyolefin, and particularly relates to a method for preparing polyolefin through coordination polymerization in a micro-reactor. The method includes: letting an olefin monomer fluid, a main catalyst fluid and a cocatalyst fluid respectively enter the micro-reactor through shunting runners; arranging a micro-reaction runner of the micro-reactor in aconstant-temperature box and carrying out polymerization reaction; and collecting the polymerization liquid to obtain the polymer. According to the preparation method, the monomer and the catalyst canbe quickly mixed, the uniformity of a local reaction environment is controlled, and the problem of polymerization reaction retention time in the prior art is solved; the prepared polymerization product realizes excellent polymer performance and realizes high flux of polymerization. The olefin monomer concentration of the main reaction runner can be timely and effectively regulated, and the molecular structure and molecular weight of the polymerization product can be controlled. The micro-reactor polymerization technology provided by the invention is low in equipment investment, small in device size and safer and more flexible to operate; and the method is suitable for continuous production, small in amplification effect and suitable for industrial production.

The invention relates to an expert control system for a medical robot and an implementation method thereof. The expert control system comprises an expert controller and is characterized in that the expert controller comprises a feature identifying information processing module connected with a storage module and a logic decision reasoning module through communication, the storage module is used for storing expert experience data, the logic decision reasoning module is used for determining an expert empirical model, the logic decision reasoning module is connected with a control rule module through communication, and the control rule module is connected with the medical robot through communication; the medical robot has certain expert intelligence and assists doctors in making reasonable treatment schemes, the ordinary doctors can have the diagnosis and treatment level of experts, and the purpose of conducting accurate treatment on patients is achieved.

The invention discloses a method for processing the antiwear texture of a polyoxymethylene support ring, which belongs to the technical field of surface engineering. A pulsed laser surface treatment device is adopted in the method and composed of a controller, a pulsed laser, a holophote, an extender lens, a focusing mirror, the polyoxymethylene support ring, a rotating table, an X-direction translational device, a Z-direction translational device, a stepping motor and a computer. The method comprises the steps: after the deoiling processing of the polyoxymethylene support ring, the polyoxymethylene support ring is installed on the rotating table, and the surface of the polyoxymethylene support ring is in the height range of texture processing by the adjustment of the Z-direction translational device; average laser power is adjusted in the range of texture processing, and the computer controls the scanning track of a laser focus on the surface of the polyoxymethylene support ring by controlling the X-direction translational device and the rotating table; and the pulsed laser surface treatment device is started to process the polyoxymethylene support ring. The invention has the advantages of high processing precision, convenience for processing, high efficiency, wide range of application, improvement of antiwear performance for the polyoxymethylene support ring and prolonging of service life of the polyoxymethylene support ring.

The invention discloses a multi-mode energy-saving hot-rolled strip steel production line. The multi-mode energy-saving hot-rolled strip steel production line mainly involves a continuous casting tundish, a mold, a descaling machine 3, a roughing mill, a swing shear, an intermediate billet manipulator, a hot coil box, a rolling shear, a scrap steel removing device, a soaking pit furnace, an intermediate cooling device, a descaling machine 12, a finishing mill, a laminar cooling device, an induction soaking device, a flying shear and a recoiling machine, wherein the intermediate cooling deviceis arranged between the soaking pit furnace and the finishing mill, the scrap steel removing device is arranged behind the rolling shear, the scrap steel removing device do not communicate with the soaking pit furnace, the movable hot coil box is arranged between the intermediate billet manipulator and the rolling shear, and the induction soaking device is arranged between the laminar cooling device and the flying shear; and a using method comprises the following steps of smelting; casting into a blank; descaling for the first time; rough rolling; heating; cooling; descaling for the second time; finish rolling; cooling; electromagnetic induction heating; and coiling. The method not only has austenite rolling, but also can realize ferrite rolling, single-billet rolling and continuous rolling can be further achieved, and a product is uniform in mechanical property, low in comprehensive energy consumption and wide in thickness coverage range.