Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

110results about How to "Save adjustment time" patented technology

Intelligent crankshaft processing machine tool

The invention discloses an intelligent crankshaft machining machine tool, and relates to the technical field of crankshaft multi-station machining. Grooving and mounting are integrated, machining of different steps is achieved through station switching, the problem that time is wasted due to continuous switching of workpieces is solved, the machining efficiency is improved, multiple gears are mounted outside a crankshaft at a time through the multi-gear mounting mechanism, the multiple gears are heated, cooled and mounted at the same time, and the machining efficiency is improved. Batched heating, cooling and mounting are not needed, the mounting efficiency of the multi-gear crankshaft is greatly improved, the gears are automatically rotated, the clamping grooves of the gears are in butt joint with the protrusions, the positions of the clamping grooves do not need to be manually adjusted when the gears are placed, the adjusting time is shortened through automatic adjustment, the mounting efficiency is improved, and the mounting efficiency is improved. The gear is heated before being mounted, the inner diameter of the gear is increased, butt joint mounting of the gear is facilitated, and the problem that mounting is difficult due to slight dislocation during automatic butt joint is solved.
Owner:XIANGTAN DONGFENG CRANKSHAFT MFG CO LTD

Radar induction-based operating shadowless lamp automatic control system and method

The invention discloses an operating shadowless lamp automatic control system and method based on radar induction, and belongs to the technical field of automatic control systems.The operating shadowless lamp automatic control system collects operating data of doctors, analyzes complex operating conditions of the doctors according to the operating data of the doctors, collects operating information of the patients, and controls the operating shadowless lamp according to the operating information. The method comprises the following steps: analyzing patient operation complex conditions according to patient operation information, matching the initial brightness of an operation shadowless lamp according to the patient operation complex conditions and doctor operation complex conditions, collecting operating room illumination data, and analyzing illumination influence conditions according to the operating room illumination data; according to the method, the complexity of an operation is comprehensively analyzed according to the operation condition of a doctor and the operation condition of a patient, the initial brightness is matched, the optimal illumination condition is analyzed in combination with auxiliary illumination and the reflection influence of equipment, the operation shadowless lamp is automatically controlled and adjusted to the optimal brightness, and the brightness of the operation shadowless lamp is adjusted to the optimal brightness. The adjustment precision can be improved, so that the operation efficiency of doctors is improved.
Owner:SHANDONG CHENGXING ELECTROMECHANICAL EQUIP CO LTD

Self-adaptive valve driving device and control method

The invention provides a self-adaptive valve driving device and a control method. The self-adaptive valve driving device is characterized in that an upper computer receives signals transmitted by a torque sensor and a photoelectric encoder through an RS485, and the upper computer analyzes the signals through an inner-ring controller and an outer-ring controller of an internal active-disturbance-rejection iterative learning algorithm, removes interference and then outputs control signals; the lower computer comprises a brushless direct current motor, a planetary reducer and a valve rod, signals output by the upper computer are transmitted to the brushless direct current motor, the brushless direct current motor transmits torque to the valve rod through the planetary reducer, and therefore opening and closing of the ball valve are controlled. The running state and the fault condition of the valve are judged according to the collected data, and the output of the brushless direct current motor is adaptively adjusted through the active-disturbance-rejection iterative control algorithm to act on opening and closing of the ball valve.
Owner:SOUTHWEST PETROLEUM UNIV +1

Foldable double-layer circuit board

The utility model belongs to the technical field of circuit boards, and particularly relates to a foldable double-layer circuit board, which comprises a positioning shaft, positioning seats are fixedly mounted at two ends of the positioning shaft, penetrating holes are formed in the upper side and the lower side of the front surface of each positioning seat, a cross rod is movably mounted in each penetrating hole, a baffle is fixedly mounted on one side of each cross rod, and the baffle is fixedly mounted on the other side of each cross rod. And positioning pins are fixedly installed on the upper side and the lower side of the back face of the baffle correspondingly, a shaft sleeve is movably installed on the surface of the positioning shaft, positioning discs are fixedly installed at the two ends of the shaft sleeve correspondingly, and a plurality of positioning holes are formed in the front face of each positioning disc. Through the structural design of the positioning shaft, the through hole, the cross rod, the positioning pin, the shaft sleeve, the positioning disc and the positioning hole, the function of fixing the rotation angle is realized, so that the double-layer circuit board can adapt to different application scenes and requirements, meanwhile, the purpose of overlapping the circuit boards on the two sides can be achieved, and in conclusion, the problem of insufficient flexibility and applicability is solved.
Owner:ZHUHAI ZHONGJIE ELECTRONIC TECH CO LTD

A method and system for cooperative optimization control of an environmental simulation air extraction device based on cooperative differential game

PendingCN122386746AAvoid Control Conflictsimprove security
The application provides an environment simulation air extraction device cooperative optimization control method and system based on cooperative differential game, comprising the following steps: step 1, a dynamic model of the air extraction device is established. Step 2, the air supplement valve and the plurality of inlet valves are regarded as game participants, and a pressure-pressure ratio multi-objective optimization model based on cooperative differential game is constructed. Step 3, an approximate dynamic programming algorithm-critical neural network is combined to obtain an approximate Pareto optimal solution of the established game optimization model. Step 4, a cooperative optimization controller is designed: the inlet valve adopts PI control combined with a filter and an optimization item to realize cooperative control of pressure and pressure ratio. Step 5, on a multi-compressor parallel simulation platform, various complex working conditions such as valve leakage and compressor failure are set to verify the robustness and superiority of the algorithm. After the application of the technical scheme, the speed, robustness and anti-interference ability of the system based on the cooperative differential game cooperative optimization control algorithm are significantly improved.
Owner:FUZHOU UNIV +1

Line reference conversion device

The invention discloses a line reference conversion device, relates to the technical field of machining, and is used for solving the technical problems of machining interruption, pause and large error caused by the fact that a machining machine cannot recognize a line reference in the prior art. The line reference conversion device comprises an alignment assembly, a fixing assembly, an adjusting assembly, a shell and a placing plate, the alignment assembly, the fixing assembly and the adjusting assembly are connected with the shell, the shell is connected with the placing plate, the adjusting assembly is used for adjusting the alignment assembly, and the placing plate is used for placing a workpiece. According to the alignment assembly, the plane where the line reference on the workpiece is located can be converted into the reference plane on the alignment assembly, so that collection, conversion and recognition of the line reference are achieved, errors are reduced, and automatic machining is facilitated.
Owner:BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP CO LTD

Ground mat cutting device facilitating continuous production

The utility model relates to the technical field of ground mat production, in particular to a ground mat cutting device facilitating continuous production. According to the technical scheme, the cutting device comprises cutting discs, a cutting frame and a cutting motor, a cutting shaft is rotatably installed in the cutting frame, the outer surface of the cutting shaft is slidably sleeved with a plurality of sliding sleeves, the outer surface of each sliding sleeve is fixedly sleeved with a cutting disc and a rotating bearing, and the outer surface of each rotating bearing is fixedly connected with a guide sliding block through a connecting rod; a guide sliding groove is formed in the top of the inner wall of the cutting frame, the guide sliding block is located in the guide sliding groove, an electric cylinder is fixedly installed on the rear surface of the cutting frame through a fixing frame, and the output end of the electric cylinder is fixedly connected with a moving plate. According to the utility model, the distance between the equally-divided cutting discs can be conveniently adjusted so as to adapt to different equally-divided cutting requirements of different ground mats, the adjusting time of the cutting discs is saved, and the influence on normal production of the ground mats is effectively reduced, so that the continuous production of the ground mats is facilitated.
Owner:QINGDAO ZHONGXINGDA RUBBER PLASTIC

An adjustable punch press bed

ActiveCN224687673UImprove applicabilityMultiple adjustment dimensions
The utility model relates to punch press base field discloses an adjustable punch press base, including support seat, the top of support seat is equipped with two adjusting seat of sliding, the top of adjusting seat is equipped with the seat of placing of sliding, and the top of support seat is equipped with the moving groove, the bottom of adjusting seat is fixedly installed with the moving seat, and the moving seat is slidably installed in the moving groove, the top of adjusting seat is equipped with two drive grooves, the bottom of seat of placing is fixedly installed with the drive seat, and the drive seat is slidably installed in the drive groove, and the inner wall of the side of corresponding two drive grooves is rotatably installed with same thread rod, and the drive seat is threadedly sleeved on the thread rod. The utility model has the advantages and effects that: through the adjustment structure of many directions, the flexible adjustment of seat position is realized, can adapt to different work piece processing demand, improved punch press base's applicability and production efficiency, and simple structure, convenient operation, cooperation stable and reliable.
Owner:JINGZHOU YONGBO INTELLIGENT MASCH CO LTD

A load adaptive torque control method for permanent magnet brushless motor

PendingCN122717513AReduce speed fluctuationsave adjustment time
This invention discloses a load adaptive torque control method for a permanent magnet brushless motor. The method acquires high-frequency electrical feedback and low-frequency mechanical angular velocity based on asynchronous timing updates. Asynchronous sampling lag is eliminated through time resolution matching. The active power gradient is reconstructed using discrete differential calculations, and a mechanical state observer is constructed to extract high-frequency synchronous angular acceleration. These two parameters are combined to calculate a virtual load mutation indicator factor. Based on this factor, the load condition is determined, and adaptive feedforward current generation and speed loop integral state preprocessing are triggered in parallel. Finally, the final q-axis command current is synthesized to complete closed-loop control. Furthermore, this invention utilizes a radial basis function neural network to identify the actual moment of inertia online and updates the equivalent parameters to the observer in real time. This invention solves the shortcomings of traditional control methods, such as response lag and model parameter mismatch in the early stages of load mutations, effectively suppressing transient speed drops in the motor and improving the system's anti-disturbance performance.
Owner:FUZHOU GECE MACHINERY EQUIPMENT CO LTD

A train brake beam inspection device

ActiveCN224390942Usmooth rotationQuickly adapt to size differencesWork holdersBrakeControl theory
The utility model provides a train brake beam overhauling device relates to train brake beam overhauling technical field, including fixed frame, still include many range clamping subassembly, many range clamping subassembly include fixed frame of fixed connection in fixed frame, have piston on fixed frame and slide, have inner slide bar on piston and fixed connection through transmission link, have carousel on inner slide bar and slide, have bottom plate on carousel and slide, have inner slide bar on bottom plate and slide, have telescopic link on fixed frame and fixed communication, have vertical slide on telescopic link and fixed connection, have clamping link on vertical slide and fixed connection, the utility model discloses the adjustment effect of many directions, need not to disassemble component and can quick adaptation size difference of different vehicle model, different wear degree brake beam, compatible majority of active service vehicle model, the adjustment time is greatly shortened compared with traditional equipment, has solved the inconvenient problem of adjusting the range of holding of prior art in background art.
Owner:CRRC DALIAN CO LTD

Cloth dragging wheel mechanism for sewing machine

ActiveCN222594247Uavoid stopExtended service lifeDrive shaftCam
The cloth dragging wheel mechanism for the sewing machine comprises an installation plate, a cloth dragging wheel and a connecting rod mechanism, a driving shaft is arranged on the installation plate, the connecting rod mechanism comprises an output rod, a connecting rod and an executing rod which are sequentially connected, a transmission cam is fixedly arranged on the driving shaft, the output rod is rotationally connected with the transmission cam, and the executing rod is connected with the output rod. The mop device is characterized in that the connecting rod mechanism comprises a connecting node located between the output rod and the connecting rod, a control mechanism eccentrically arranged with the connecting node is arranged on the mounting plate, a driving rod rotationally connected with the connecting node is arranged on the control mechanism, and the driving rod is connected with the connecting node through a one-way bearing. The control mechanism can control the driving rod to rotate so as to change the position of the connecting node; and the control mechanism has a locking function. The problem that the length of a connecting rod of an existing cloth dragging wheel needs to be manually adjusted to meet the production requirement, and consequently the production efficiency is affected is solved.
Owner:ZHE JIANG YIDA TECH CO LTD

A tension regulating device for the production of flame-retardant needle-punched fabric

This utility model relates to the technical field of tension adjustment devices, specifically a tension adjustment device for the production of flame-retardant needle-punched fabric. Its purpose is to solve the problem that existing tension rollers require height adjustment when guiding needle-punched fabrics of different specifications. However, the adjustment of the tension roller is cumbersome and time-consuming, achieved by raising and lowering screws on a bracket. Therefore, this new device improves the efficiency and effectiveness of the tension adjustment, thus enhancing its practicality. The device includes a tension roller, a rotating shaft, and fixed plates. The rotating shaft is fixedly mounted to the tension roller, and both sides of the rotating shaft are rotatably connected to corresponding fixed plates. The tension roller is guided and pressed by the flame-retardant needle-punched fabric. A pre-tightening mechanism is provided at the bottom of the two sets of fixed plates. The pre-tightening mechanism also includes a sliding block, a lifting plate, a limiting plate, and a spring. A groove is provided at the top of the lifting plate, and a working cavity is provided at the bottom of the groove.
Owner:CHANGZHOU ZHONGDA NON-WOVEN PROD CO LTD

Predictive control method based on improved locust optimization

The invention provides a prediction control method based on improved locust optimization, and relates to the technical field of data processing and control engineering, and the method comprises the steps: carrying out the parameter identification of a mass regulation channel of a heat exchange station system through employing a recursive least square method with a forgetting factor, and building a controlled autoregressive moving average integral model; based on the controlled autoregressive moving average integral model, generating a prediction output through implicit generalized prediction control and constructing a target function, the implicit generalized prediction control directly identifying a prediction matrix and a prediction vector; when the control quantity increment exceeds a preset constraint range, an improved locust optimization algorithm is adopted to optimize the target function, the improved locust optimization algorithm is combined with a double-differential evolution strategy and a reverse learning mechanism, the double-differential evolution strategy updates the locust position through differential variation, and the locust position is updated through differential variation; the variant basis vector is based on the current optimal location and the random individual location.
Owner:INSPUR GENERSOFT CO LTD

Biochemical analyzer reaction disc intelligent temperature control system and control method

PendingCN121979332AHigh precisionstable temperature environmentTemperatue controlTemperature controlLoop control
The invention relates to an intelligent temperature control system and control method for a reaction disc of a biochemical analyzer, and the system comprises a temperature sensing unit which collects the real-time temperature distribution data of multiple regions of the reaction disc, and provides a precise data source for temperature control; the environment temperature sensor is used for monitoring the change of the environment temperature in the instrument, monitoring the change of the environment temperature in real time and providing environment parameters for anti-interference compensation; the thermal disturbance detection module is used for establishing a temperature disturbance model for reagent addition, providing a disturbance predicted value and improving the anti-interference capability; the adjusting control module is used for realizing double-closed-loop control logic, calculating a basic control quantity and a compensation control quantity and generating a total control instruction; the refrigerating and heating module responds to the control instruction and adjusts the temperature of the reaction disc through refrigerating / heating action; and the main control module is responsible for data overall planning, parameter management and control instruction issuing. The device has the beneficial effects that the temperature precision of the reaction disc is improved; the response speed is greatly improved; the anti-interference capability is obviously enhanced; and the temperature uniformity is obviously improved.
Owner:URIT MEDICAL ELECTRONICS CO LTD

Conveyor belt assembly and elevator

ActiveCN224361912UTension adjustment is easy to operateImprove tension adjustment efficiencyConveyors
The utility model relates to the technical field of elevator, especially transmission belt subassembly and elevator of a kind of. Transmission belt subassembly includes conveying frame, driving roller, driven roller, driving part, conveying belt, driving roller and driven roller are spaced apart in conveying frame along length direction, conveying belt is sleeved in driving roller and driven roller, driving part is drivingly connected with driving roller. Transmission belt subassembly further includes two adjusting assemblies, adjusting assembly includes skid platform and locking part, the skid platform of two adjusting assemblies is spaced apart in conveying frame along width direction, the both ends of driven roller shaft direction are rotatably arranged in corresponding skid platform, the position of skid platform is adjustable along length direction, locking part is configured to lock or unlock the relative position of skid platform and conveying frame. The elevator includes the above-mentioned transmission belt subassembly, the position of adjusting skid platform is along length direction, so that conveying belt keeps tension, locking part locks the relative position of skid platform in conveying frame, the quick adjustment of the tension state of conveying belt is realized, and the tension adjustment efficiency of conveying belt is improved.
Owner:CHINA TOBACCO GUANGXI IND

Visual positioning mechanism for laser cutting

The utility model discloses a laser cutting visual positioning mechanism, and belongs to the field of laser cutting machines. A laser cutting visual positioning mechanism comprises a fixing support, an industrial camera and a light supplementing lamp, the industrial camera and the light supplementing lamp are detachably installed on the fixing support, the light supplementing lamp is located at the lower end of the industrial camera, the laser cutting visual positioning mechanism further comprises a polarizer, the polarizer is installed on the fixing support, an adjusting piece is arranged on the fixing support, and when the adjusting piece works, the light supplementing lamp is located at the lower end of the industrial camera. The polarizer moves to the position below the industrial camera and rotates; according to the utility model, the position and the polarization angle of the polarizer are accurately adjusted and controlled through the adjusting piece, the adjusting time can be shortened, the imaging quality and the shooting efficiency of the industrial camera can be improved, and meanwhile, the height of the industrial camera is adjusted through the telescopic piece, so that the industrial camera is adaptive to shooting scenes with different sizes and patterns; therefore, the shooting precision of the industrial camera is improved.
Owner:武汉奇凯信息科技发展有限公司

A zero-adjustable linear variable differential transformer and an adjusting method thereof

PendingCN122599256AAchieve zero adjustment accuracyavoid complexity
The application belongs to the technical field of sensors, and discloses a linear variable differential transformer with adjustable zero and a method for adjusting the same. A coil frame of the transformer is movably sleeved on an inner tube frame, and a cylindrical shell is arranged outside the coil frame. Left and right end covers are respectively arranged at two ends of the cylindrical shell. An assembly composed of an iron core and a connecting rod is arranged inside the inner tube frame. The right end cover is rotatable relative to the cylindrical shell, and rotation of the right end cover can drive the coil frame to move axially on the inner tube frame. Through design of a differential screw mechanism, displacement reduction effect generated by threads with different pitches and same rotation directions is utilized to achieve micron-level or even sub-micron-level zero adjustment precision, which is 500 to 1000 times higher than millimeter-level adjustment precision of the prior art. A pure mechanical adjustment mechanism is adopted, and no additional electronic components are needed, so that circuit complexity and potential failure points introduced by electronic zero adjustment methods are avoided, and system reliability is significantly improved.
Owner:JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA

Three-station isolating switch capable of intelligently adjusting grounding and closing synchronization

The utility model relates to a three-station isolating switch capable of intelligently adjusting grounding and closing synchronization, which comprises a three-station isolating switch and a controller, the three-station isolating switch is provided with a grounding beam, the grounding beam is respectively provided with a group of lifting type grounding contact assemblies corresponding to three-station isolating knife switches, each lifting type grounding contact assembly comprises an insulating fixed support, and the insulating fixed support is provided with a plurality of lifting type grounding contact assemblies. Lifting driving mechanisms are installed at the bottom of the insulating fixing support, the top output ends of the lifting driving mechanisms are connected with insulating parts, the tops of the insulating parts are connected with supporting shafts, grounding contacts are installed at the top ends of the supporting shafts, and all the lifting driving mechanisms are in signal connection with the controller. Displacement sensors are arranged on the rack of the three-position isolating switch corresponding to each group of lifting type grounding contact assemblies, the displacement sensors are used for detecting the height of the corresponding contacts, and all the displacement sensors are in signal connection with the controller; according to the utility model, the adjusting efficiency and precision are obviously improved, rapid and accurate adjustment of grounding closing synchronization is realized, the adjusting time is shortened, and the working efficiency is improved.
Owner:HUBEI WANGAN TECH

An angle-adjustable coating machine spray cooling device

ActiveCN224724418Uavoid offsetMeet cooling range needs
The utility model discloses a kind of angle-adjustable coating machine spray cooling device, more specifically relates to coating equipment technical field, including two mounting seats, between two mounting seats is provided with spray pipe, the surface of spray pipe is throughly provided with multiple connecting pipes, the side of mounting seat is provided with adjusting mechanism, adjusting mechanism includes the rotary groove opened in the inside of one mounting seat, rotary groove is rotatably provided with swivel ring, the side of swivel ring is fixedly connected with spray pipe surface, swivel ring surface is fixedly provided with connecting ring, the side of connecting ring is fixedly provided with handle, the surface of connecting ring is fixedly provided with connecting strip. The utility model is accurately controlled spray pipe angle by adjusting mechanism, realize the adaptation of cooling range and intensity, and it is convenient to disassemble to spray head, simultaneously, the spray head of different spray range is adapted, and the adaptability of device to diversification production demand is improved.
Owner:GUANGDONG XINNOLAN INTELLIGENT EQUIP CO LTD

A surgical robotic arm

The application belongs to the technical field of medical devices and relates to a surgical mechanical arm. The surgical mechanical arm comprises a base, the base comprising a mounting seat and a clamping device and a locking device both arranged on the mounting seat; the clamping device comprising a first handle, a second handle, a first clamping assembly and a second clamping assembly, the first handle being used to drive the first clamping assembly to clamp or release both ends of a surgical bed in a first direction, and the second handle being used to drive the second clamping assembly to clamp or release both ends of the surgical bed in a second direction; when the first clamping assembly and the second clamping assembly clamp the surgical bed respectively, the first handle abuts against the second handle, and the locking device locks the first handle to limit the movement of the second handle. The application can quickly adapt to surgical beds of different sizes, effectively reduce the adjustment time, improve the surgical efficiency and has high reliability.
Owner:SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD

Adjustable torque gun with torque adjusting device

ActiveCN224209848UEliminate clearance errorssave adjustment timeSpannersWrenchesGear wheelControl engineering
The utility model belongs to the technical field of torque gun processing and production, and discloses an adjustable torque gun with a torque adjusting device, which comprises a gun body, and a driving motor is arranged in the gun body; the transmission gear set is arranged in the gun body and connected with an output shaft of the driving motor; the torque adjusting device is installed on the periphery of the gun body, and the position of the torque adjusting device corresponds to the position of the transmission gear set; an adjusting tooth profile matched with the tooth profile of a main gear of the transmission gear set is formed on the inner surface of the transmission gear set; the torque adjusting device is rotated to adjust the tooth shape to drive the main gear of the transmission gear set to rotate, and the torque of the torque gun is changed. The external torque adjusting device is additionally arranged, so that the torque can be accurately adjusted without a dismounting tool.
Owner:NINGBO TOWIN CLAMP CO LTD

Automatic adjusting support for asynchronous and eccentric construction of segmental beam and using method

The invention belongs to the technical field of bridge construction equipment, and particularly provides an automatic adjusting support for asynchronous eccentric construction of a segmental girder and a using method.The TY composite pier comprises a Y-shaped cover beam and a T-shaped pier body, the Y-shaped cover beam is connected to the T-shaped pier body, and the segmental girder is installed on the left portion of the upper face of the Y-shaped cover beam; an automatic adjusting bracket is connected between the Y-shaped bent cap and the T-shaped pier body at the position of the segmental beam; the problems that in the asynchronous eccentric construction process of an existing segmental beam, a traditional support is difficult to adjust accurately to adapt to stress requirements of different segments, linear control of a pier in the construction process is difficult, deviation is prone to occurring, and the overall quality and appearance of a bridge are affected are solved. The pressure borne by the pier body of the pier is kept balanced, eccentricity is avoided, and the construction line shape and quality of the segmental beam are effectively guaranteed.
Owner:CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD +1

Eccentric adjusting device of continuous rolling speed reducer for coiling machine

ActiveCN224201075Ueasy meshGuaranteed uptimeGearboxesGearing detailsEccentric annulusControl engineering
The utility model relates to an eccentric adjusting device of a continuous rolling speed reducer for a coiling machine. The eccentric adjusting device effectively solves the problems that according to an existing speed reducer adjusting mode, shutdown disassembly is needed, adjusting precision is not high, non-shutdown disassembly-free adjustment is not convenient, and efficiency is affected. According to the eccentric adjusting device of the continuous rolling speed reducer for the coiling machine, through the arrangement of the eccentric ring structure and the adjusting mechanism, the adjusting mechanism can be directly rotated by means of an external tool, so that the eccentric ring structure can be driven to rotate, an internal structure is eccentrically adjusted, disassembly-free adjustment is achieved, the adjusting time is greatly shortened, and the adjusting efficiency is improved. The eccentric ring structure can be driven by the adjusting mechanism to finely adjust the speed reducer structure, the adjusting precision is improved, the meshing effect of the speed reducer is better, the eccentric ring structure can be dynamically adjusted under the condition that the operation of the speed reducer is not affected, the part with the meshing precision attenuated can be adjusted and compensated in time, and the service life of the speed reducer is prolonged. Normal continuous operation of a production line is guaranteed, and production efficiency is improved.
Owner:LUOYANG YONGJI HEAVY DUTY GEAR CO LTD

New energy unit transient stability optimization method and system based on active feed-forward

The invention provides a new energy unit transient stability optimization method and system based on active feed-forward, and belongs to the field of new energy power generation. The system includes a current command generator and a current controller. The method comprises the steps of collecting terminal voltage and current of a unit, calculating active power and detecting a transient fault; when a fault is detected, generating an active current instruction through active feed-forward control based on power grid voltage information obtained by an active power signal, a fault voltage amplitude signal and phase locking; meanwhile, a reactive current instruction is generated; a current reference instruction is synthesized, and a converter is driven through closed-loop control to provide power support. According to the method, an active feed-forward mechanism is introduced, so that the new energy unit can respond to the power shortage of the power grid in advance, active and reactive support is quickly provided, frequency drop and power oscillation in the transient process are effectively inhibited, and the transient stability of the power system under the access of high-proportion new energy is remarkably improved.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST +1

A machining table with multi-angle adjustment function for machine tools and a method of using the same

The application discloses a machining table with multi-angle adjusting function for a machine tool and a use method thereof, and particularly relates to the technical field of machine tools. The machining table is characterized in that the cooperation between the pressure control structure, the first half-thread sleeve, the second half-thread sleeve, the second screw rod and the first screw rod can realize the operation of switching the first half-thread sleeve and the second half-thread sleeve for alternate use. When long-distance adjustment is needed, the second screw rod and the second half-thread sleeve can be cooperated to quickly adjust the machining table due to the sparse threads on the outer side of the second screw rod. The first screw rod can be used to complete short-distance precise adjustment due to the close threads. The use state of the first half-thread sleeve and the second half-thread sleeve can be switched to quickly and finely adjust the machining table, thereby effectively saving the adjustment time, and the machining table is simple and convenient to operate, and has good application value.
Owner:QUZHOU UNIV

An industrial AI closed-loop adaptive monitoring control system

PendingCN122592785AProcess state prediction error reducedHealth score accuracy improved
The application relates to the technical field of monitoring control systems, and provides an industrial AI closed-loop self-adaptive monitoring control system, which comprises a data acquisition module, a data preprocessing module and a feature extraction module; the data acquisition module comprises a multi-source sensor unit and is used for collecting state parameters of an industrial process in real time; the data preprocessing module comprises an abnormal value detection and processing unit and a data normalization unit and is used for cleaning and standardizing the state parameters; the feature extraction module comprises a time domain feature extraction unit, a frequency domain feature extraction unit and a time sequence feature fusion unit based on an attention mechanism and is used for generating a multi-dimensional fusion feature vector from the standardized data. Through multi-source data processing, time-frequency feature fusion and mixed neural network modeling, the industrial process monitoring precision and health evaluation reliability are improved; PID parameter self-adaptive optimization is realized in combination with reinforcement learning, safety protection and online updating are matched, the closed-loop control performance is significantly improved, complex working conditions are adapted, and the stable and efficient operation of the industry is ensured.
Owner:DEZHOU VOCATIONAL COLLEGE OF SCI & TECH

Common-mold pouring and performance-balanced casting method for different castings with large wall thickness difference

The invention discloses a casting method for common-mold pouring and balanced performance of different castings with large wall thickness differences. The casting method comprises the steps that 1, an upper appearance mold, a lower appearance mold, an upper iron mold and a lower iron mold are drawn according to common-mold arrangement of the sizes and parting schemes of thick and large parts and thin-wall parts; 2, the thicknesses of iron mold sand-lined layers corresponding to the positions of thick and large castings in the upper iron mold and the lower iron mold are designed to be thinned; 3, a protrusion is designed at the position of an inner pouring gate of the thick and large casting of the lower appearance mold, an upper casting mold and a lower casting mold are obtained after modeling is completed, a pit is formed in the position, corresponding to the protrusion, of the thick and large casting in the lower casting mold, and pure antimony powder is placed in the pit; and 4, molten iron is smelted according to alloy components of the thin-wall casting, the smelted molten iron is poured into a cavity defined by the upper casting mold and the lower casting mold, and the thick and large casting and the thin-wall casting which are balanced in performance are obtained. According to the method, the iron mold sand coating process design and the smelting technology are combined, common mold production of different castings with large wall thickness difference is achieved, the technical requirement for performance balance is met, the mold cost can be saved, and the production efficiency can be improved.
Owner:GUANGXI YUCHAI MACHINE PARTS MFG CO LTD

Hydroelectric generating set speed regulator load control method and system

The invention discloses a hydroelectric generating set speed regulator load control method and system, and the control method comprises the steps: obtaining unit power # imgabs0 # and guide vane opening degree Y data of a hydroelectric generating set under different water heads, and inputting the data into a monitoring system database; the monitoring system database searches a target guide vane opening degree Y1 corresponding to the target load # imgabs2 # under the current water head according to the target load # imgabs1 #, and a speed regulator controller adjusts the guide vane opening degree Y to the target guide vane opening degree Y1 according to the given opening degree; after the guide vane opening degree Y is adjusted to the target guide vane opening degree Y1, the speed regulator controller controls the unit power # imgabs3 # to be adjusted to the target load # imgabs4 #; after the unit power # imgabs5 # is adjusted to the target load # imgabs6 #, a speed regulator controller is converted into an opening degree adjusting mode from a power mode; the speed regulator controller can quickly determine the target guide vane opening degree Y1 through the monitoring system database, the speed regulator controller can predict and adjust the guide vane opening degree Y in advance through the water head and the monitoring system database, and the speed regulator lag phenomenon caused by load change and water head fluctuation is effectively reduced.
Owner:DATANG HYDROPOWER SCI & TECH RES INST CO LTD +2

Automatic welding device for reinforcing mesh

The utility model discloses an automatic reinforcing mesh welding device which comprises a bottom frame, a conveying belt device is fixedly arranged on the bottom frame, a reinforcing mesh mold is arranged on the upper end face of the conveying belt device, a portal frame is fixedly arranged on the upper end face of the bottom frame, a mounting plate is arranged in the portal frame in a sliding mode, and an electric push rod is fixedly arranged on the top face in the portal frame. A U-shaped frame is fixedly arranged at the bottom of the side face of the mounting plate, a plurality of welding heads are slidably arranged in the U-shaped frame, a groove plate is slidably arranged on the side face of the mounting plate, a chute corresponding to each welding head is formed in the outer side face of the groove plate, a cylindrical sliding block is fixedly arranged on the rear side face of each welding head, and a second electric push rod is fixedly arranged on the side face of the mounting plate. Compared with the prior art, the welding device has the advantages that the groove plate and the inclined grooves are designed and matched with the cylindrical sliding block, synchronous adjustment of the distance between the welding heads is achieved, the distance between all the welding heads can be adjusted at the same time only by driving the groove plate to move up and down, and operation is easier, more convenient and more efficient.
Owner:QINGDAO DONGXIAO METAL PRODUCTS CO LTD