32results about How to "Reduce technology dependence" patented technology

The invention discloses a high-pressure common-rail fuel injection pressure control method and system. According to the method, an electric fuel delivery pump driven by a DC motor is taken as an actuating element and the high-pressure common-rail fuel injection pressure is adjusted by adjusting the low-pressure fuel output quantity. The method is characterized in that a set fuel injection pressure value and a target driving PWM signal value of the electric fuel delivery pump are calculated by gathering the operating parameters of an engine, and a PWM single duty ratio control logic changes along with switching of the operating condition modes of the engine. According to the invention, the common-rail injection pressure is adjusted by controlling the fuel supply quantity of the electric fuel delivery pump, which avoids unnecessary load of the engine, increases the energy conversion efficiency of the engine and fits the intellectualization, integration and modularization development trend of automobile actuators. The invention changes traditional common-rail fuel injection pressure control and calibration modes, reduces technological dependence on high-pressure common-rail fuel injection system suppliers and contributes to enhancing the independent design and development abilities of engine and diesel vehicle manufacturers.

The invention relates to an active power distribution network analysis and evaluation system. The active power distribution network analysis and evaluation system is characterized by comprising a data acquisition module, a data maintenance module, a data verification and correction module, a power distribution network assessment module and an assessment result output module, wherein the data acquisition module is used for acquiring data of a power distribution network and transmitting the data to the data maintenance module; the data maintenance module is used for maintaining and upgrading the received data and then transmitting the data to the data verification and correction module; the data verification and correction module is used for carrying out data table, topological data and electric verification and correction on the received data and then transmitting the data to the power distribution network assessment module; the power distribution network assessment module is used for assessing indexes in a basic power distribution network, a novel electrical load and a distributed power supply to obtain three assessment results and then carrying out weighted average on the results to obtain a comprehensive assessment value of the active power distribution network in a certain region; transmitting the three assessment results and the comprehensive assessment value to the assessment result output module; the assessment result output module is used for outputting the received results in a text and data table form.

The invention discloses an image recognition spatial modeling based high building external surface cleaning robot, and relates to the technical field of robots. The image recognition spatial modeling based high building external surface cleaning robot includes a housing, a base plate, a camera, a liquid crystal display screen, support wheels, a water spraying system, a working pressure providing and crosswind resistant system, a horizontal expansion unit, a longitudinal pushing mechanism and a surface cleaning mechanism; the housing and the base plate form a body of the robot; the surface of the housing is provided with the camera; the housing is provided with the liquid crystal display screen; four corners of the base plate are provided with the support wheels; each support wheel is connected to a single support wheel height adjustment unit; and the base plate is provided with the water spraying system, the working pressure providing and crosswind resistant system, the horizontal expansion unit, the longitudinal pushing mechanism and the surface cleaning mechanism. The image recognition spatial modeling based high building external surface cleaning robot is high in intelligent level, is excellent in operation safety performance, is improved in cleaning efficiency, can effectively clean complex external surfaces of high buildings, and is practical and stable.

The invention discloses a flexible controllable coating system and a coating method. The system comprises a slurry cabin in which slurry is stored, an extrusion cabin which is communicated with the slurry cabin and is used for controlling temperature, viscosity and pressure of slurry delivered into the cabin according to the coating requirement, a controllable seal extruder which is arranged at the outlet of the extrusion cabin and is used for coating the slurry in the extrusion cabin onto a coating substrate and regulating the coating width, speed, flow rate and direction according to the coating requirement, and a control center which is used for respectively controlling the slurry cabin, the extrusion cabin and the controllable seal extruder. By combining with an electrical control technology, the system can be used for effectively controlling the temperature, viscosity, flow rate and pressure of a high-viscosity fluid, and a coating with relative high accuracy can be obtained by using a reasonably designed extrusion nozzle.

The invention relates to the communication system and provides an embedded network management communication protocol based on ARC digital intercommunication system equipment. The embedded network management communication protocol comprises a query command unit, a setting command unit and a response command unit, wherein the query command unit comprises a query command INFO and a query command STATUS, the setting command unit comprises a setting command BW, a setting command RESET, a setting command TXPOWER and a setting command CHANNEL, the setting command unit includes commands for enabling the core network to set technical parameters such as transmission power and transmission frequency during communication of a communication link established between the core network and a base unit, the response command unit comprises a response command INFO and a response command STATUS. The embedded network management communication protocol has advantages of simple content, easy control and operation, greatly shortens the exploitation period and saves exploitation cost.

The invention provides a processing method of an integrated horn submarine gate electrode. The method comprises the following steps: cutting an electrode copper plate material, preparing materials of an electrode milling machine, processing via a grinding machine, forming and processing a first side of the electrode copper plate material and forming and processing a second side of the electrode copper plate material, wherein the step of processing via the grinding machine is characterized by processing positioning grooves used for subsequently clamping in the upper end surface and the lower end surface of the electrode copper plate material. The processing method is simple in steps, short in period and low in processing cost. A clamping fixture used in the electrode processing method comprises a fixture base and a fixture extending device, wherein the fixture base and the fixture extending device are provided with positioning convex ribs, positioning grooves and central through holes; through cooperation of the central holes and positioning structures, the electrode material to be processed is stably fixed on the clamping fixture, so that the processing accuracy is ensured. The processing method and the clamping fixture are suitable for clamping and processing various types of electrodes.

The invention discloses a database management method and device, equipment and a medium. The method comprises the following steps: running a target management program on a target server; according to an installation subprogram used for installing the target database in the target management program, generating a quick installation icon corresponding to the installation subprogram; according to an operation subprogram used for operating the target database in the target management program, generating a shortcut operation icon corresponding to the operation subprogram; and constructing a graphical interface corresponding to the target management program according to the shortcut installation icon and the shortcut operation icon. According to the method and device, one-key installation and related management operation of the database on the server side are achieved through the constructed graphical interface, it is avoided that complex command lines are used for completing installation and management of the database, the operation and maintenance complexity of the database is greatly reduced, and the installation efficiency and management efficiency of the database are improved; therefore, the technical dependence on technicians is reduced, the operation and maintenance cost is greatly reduced, and the loss caused by data risks is also reduced.

The invention discloses a quick cutter mounting mechanism. The mechanism comprises a limiting plate, wherein working station plates are arranged on two sides of the limiting plate respectively; and correspondingly, cutters are arranged on the working station plates. As the mounting space is large, more convenience is brought to mounting staff for quick and accurate mounting; the technology dependence on assembly staff is reduced, and one common assembly worker can finish the mounting process; the modular assembly reinforces the adaptability to different client requirements, so that whole production of a hob die-cutting machine is quicker, more accurate and more convenient, and the whole performance of the hob die-cutting machine is largely improved.

The invention provides a laying device and a using method thereof. The laying device comprises a horizontal mortar joint device and vertical mortar joint devices. The horizontal mortar joint device comprises two oppositely-arranged sliding rails, two first adjusting frames, two first fastening pieces and a mortar scratching plate. The bottoms of the two sliding rails can slide relative to a laying body along the horizontal direction. Sliding grooves are formed in the inner sides of the two sliding rails. The mortar scratching plate can slide in the sliding grooves in the horizontal direction. One sides of the two first adjusting frames are fixedly connected with the two ends of one of the sliding rails in a clamping mode. The two first fastening pieces are arranged in two first positioning grooves in a penetrating mode and fixedly connected with the other sliding rail. The vertical mortar joint devices are arranged on the upper side and the left and right sides of the vertical face of the laying body in a surrounding mode. A mortar filling groove is formed between the inner wall of each vertical mortar joint device and the vertical face of the laying body. The heights of the mortar filing grooves are the standard thicknesses of a vertical mortar joint. The flatness, mortar joint fullness and thickness of the laying body can be effectively controlled to be uniform, technological dependence on an operator is little, and the blank of the field of laying body construction equipment is filled.

The invention relates to the field of mechanical processing, and discloses a taper hole drilling machine tool for steering knuckle arms, which includes a workbench, a tool driving device provided with the workbench, and a servo sliding table slidably connected to the workbench. The tool driving device includes an electric control box , column, spindle box, servo thrust motor, three spindles are connected to the spindle box for rotation, the axes of the spindles are on the same plane, and the spindles are respectively connected with drilling drills, rough reaming drills and fine reaming drills, and the servo sliding table is connected with a device clip assembly. The present invention has the following advantages and effects: by connecting the drilling bit, the rough reaming bit and the fine reaming bit to the three main shafts respectively, the drilling and reaming process is performed on the taper hole end, which improves the machining efficiency and machining accuracy, and reduces the burden on the operator. Technical dependence; the tensioning part pushes the tensioning sleeve to expand to tighten and position the bolt hole, which ensures that the steering knuckle arm can rotate, avoids the deformation of the steering knuckle arm, and improves the stability of the taper hole position.

The invention discloses a flexible controllable coating system and a coating method. The system comprises a slurry cabin in which slurry is stored, an extrusion cabin which is communicated with the slurry cabin and is used for controlling temperature, viscosity and pressure of slurry delivered into the cabin according to the coating requirement, a controllable seal extruder which is arranged at the outlet of the extrusion cabin and is used for coating the slurry in the extrusion cabin onto a coating substrate and regulating the coating width, speed, flow rate and direction according to the coating requirement, and a control center which is used for respectively controlling the slurry cabin, the extrusion cabin and the controllable seal extruder. By combining with an electrical control technology, the system can be used for effectively controlling the temperature, viscosity, flow rate and pressure of a high-viscosity fluid, and a coating with relative high accuracy can be obtained by using a reasonably designed extrusion nozzle.

The invention relates to an active power distribution network analysis and evaluation system. The active power distribution network analysis and evaluation system is characterized by comprising a data acquisition module, a data maintenance module, a data verification and correction module, a power distribution network assessment module and an assessment result output module, wherein the data acquisition module is used for acquiring data of a power distribution network and transmitting the data to the data maintenance module; the data maintenance module is used for maintaining and upgrading the received data and then transmitting the data to the data verification and correction module; the data verification and correction module is used for carrying out data table, topological data and electric verification and correction on the received data and then transmitting the data to the power distribution network assessment module; the power distribution network assessment module is used for assessing indexes in a basic power distribution network, a novel electrical load and a distributed power supply to obtain three assessment results and then carrying out weighted average on the results to obtain a comprehensive assessment value of the active power distribution network in a certain region; transmitting the three assessment results and the comprehensive assessment value to the assessment result output module; the assessment result output module is used for outputting the received results in a text and data table form.

The invention discloses an automatic detecting device for defects of a flange and a detecting method thereof; the automatic detecting device comprises a phased array probe and a phased array flow detector connected with the phased array probe, and further comprises a vertical lathe including a knife rest and a rotating chuck; the phased array probe is connected with the knife rest through a bracket; a positioning piece is mounted on the rotating chuck, and is used for fixing the flange to be detected on the rotating chuck and keeping a certain distance between the lower end surface of the flange to be detected and the rotating chuck; the phased array probe can be in contact with the upper and lower end surfaces of the flange to be detected by position adjusting. When the detection is carried out, detections to the top and the bottom are implemented respectively; the phased array probe annularly moves relative to the flange to be detected, and scans the section of the passing flange in a sector scanning manner. When the automatic detecting device and the detecting method detect the flange, the defecting result is not easily influenced by the human factor, the detecting efficiency is improved, the missing detection can be avoided, and the detecting result has the traceability; the automatic detecting device and the detecting method are specifically suitable for detecting the internal defects of the flange for a wind power tower cylinder.

The invention relates to a surfacing method, in particular to a surfacing method of a 12-percent Cr steel high and middle pressure rotor journal of an ultra supercritical steam turbine, solving the problem of mechanical adhesive wear of the surfaces of the 12-percent Cr steel high and middle pressure rotor journal and a bearing. The surfacing method comprises the following steps of: firstly, respectively turning a first journal and a second journal of a blank rotor in a groove mode; secondly, carrying out dye inspection on a turning surface; thirdly, assembling the blank rotor to a special surfacing device; fourthly, preheating a surface to be surfaced of the rotor journal; fifthly, surfacing the surface to be surfaced; sixthly, distressing and heating a rotor; seventhly, turning and finishing the surfaced rotor; and eighthly, carrying out nondestructive inspection detection on the finished rotor. The surfacing method is used for surfacing the 12-percent Cr steel high and middle pressure rotor of the ultra supercritical steam turbine.

An on-machine precision adjustment device and method for turning tool tip height, belonging to the field of precision / ultra-precision machining, capable of achieving micron, submicron or even nanometer level precision adjustment, mainly including a main controller, a tool tip height precision detection device and a tool tip height Precision adjustment device. Among them, the tool tip height precision detection device includes high-precision displacement detection controller, high-precision position detection sensor, sensor support, etc.; tool tip height precision adjustment device includes micro-nano motion controller, upper tool holder block locking screw, knife Frame base, dovetail guide rail locking screw, tool holder fixing bolt, differential screw, dovetail guide rail, T-shaped lock nut, upper tool holder block fixing screw, upper tool holder block, micro-nano mobile table, lower tool holder block Wait. The invention has high adjustment precision, realizes the quantitative representation of the knife tip height, can set the required knife tip height according to actual needs, is convenient and quick to adjust, has low dependence on the operator's technology, and is easy to realize automation.

The invention discloses a high-pressure common-rail fuel injection pressure control method and system. According to the method, an electric fuel delivery pump driven by a DC motor is taken as an actuating element and the high-pressure common-rail fuel injection pressure is adjusted by adjusting the low-pressure fuel output quantity. The method is characterized in that a set fuel injection pressure value and a target driving PWM signal value of the electric fuel delivery pump are calculated by gathering the operating parameters of an engine, and a PWM single duty ratio control logic changes along with switching of the operating condition modes of the engine. According to the invention, the common-rail injection pressure is adjusted by controlling the fuel supply quantity of the electric fuel delivery pump, which avoids unnecessary load of the engine, increases the energy conversion efficiency of the engine and fits the intellectualization, integration and modularization development trend of automobile actuators. The invention changes traditional common-rail fuel injection pressure control and calibration modes, reduces technological dependence on high-pressure common-rail fuel injection system suppliers and contributes to enhancing the independent design and development abilities of engine and diesel vehicle manufacturers.

The invention discloses a database management method, device, equipment and medium, comprising: running a target management program on a target server; Install the icon; generate a shortcut operation icon corresponding to the operation subprogram according to the operation subprogram used to operate the target database in the target management program; construct a graphical interface corresponding to the target management program according to the shortcut installation icon and the shortcut operation icon. This application realizes the one-click installation and related management operations of the database on the server through the constructed graphical interface, which avoids the use of complex command lines to complete the installation and management of the database, greatly reduces the complexity of database operation and maintenance, and improves the efficiency of the database. Installation efficiency and management efficiency, in addition, reduce the technical dependence on technicians, greatly reduce operation and maintenance costs, and also reduce losses caused by data risks.

The invention discloses a method for preparing a hollow wax mold by utilization of water-soluble wax, and relates to the technical field of dewaxing casting. The method comprises the following steps: first, a water-soluble wax core original mold is prepared; second, a water-soluble wax core mold is prepared; third, sample testing of the water-soluble wax core mold is carried out; fourth, a water-soluble wax core is prepared; fifth, a wax mold is prepared; sixth, melting of the water-soluble wax core is carried out, and therefore a hollow wax mold is obtained. The beneficial effects of the method are that, the method solves the technical problem that all-around hollowing cannot be achieved when a special-shaped hollow workpiece is prepared in the traditional wax casting technology; all-around hollowing is achieved by utilization of water soluble wax, workpiece weight is lowered, the wall thickness of the prepared hollow wax mold is uniform, and the yield is raised.