730 results about "Displacement control" patented technology

The contactor comprises an electromagnetic assembly, a static contact and a movable assembly, the movable assembly comprises a movable contact, a first elastic part and a driving part which are connected, and the first elastic part is configured to generate elastic force supporting the movable assembly; the driving component is configured to generate electromagnetic driving force through a magnetic field generated by the electromagnetic assembly, and the controller is configured to control a movable contact and a static contact of the movable assembly to be closed and respond to the fact that the sensor detects that the driving component generates displacement based on electric repulsive force generated by current flowing through the movable contact and the static contact. And controlling the electromagnetic assembly to adjust the generated magnetic field so as to reduce electromagnetic driving force which is generated by the driving part according to the generated magnetic field and is opposite to the electric repulsive force, so that the movable contact is not closed with the static contact again. According to the contactor disclosed by the invention, fusion welding of the movable contact and the static contact in the short circuit process can be prevented, so that the contactor fault is avoided, and the equipment reliability is improved.

The invention provides a power control method and a related device, and relates to the field of range extenders. After a hydraulic system working instruction is received, if it is determined that a power advance control strategy needs to be adopted, before the current of a hydraulic displacement control valve is adjusted according to the hydraulic system working instruction, the power advance control strategy is adopted; the power of an engine and the power of a target generator are adjusted to the total power required by the engine, which is calculated based on the target hydraulic power and the power generation required power, so that the current engine power can meet the power generation power requirement and the power requirement of a hydraulic system after responding to a working instruction of the hydraulic system; and then the hydraulic displacement control valve current is adjusted according to the hydraulic system working instruction, after the hydraulic displacement control valve current is adjusted, the hydraulic power begins to change, and during the hydraulic power change period, the power of the target generator can be adjusted based on the hydraulic power change, so that the engine can provide the hydraulic power needed by the hydraulic system in real time.

The invention provides a coffee machine mechanical arm acceleration compensation control method and device based on toppling spill prevention, and relates to the technical field of mechanical arm control. A coffee machine calls a real-time acceleration sequence from an acceleration control library after receiving a real-time order, and a pipetting mechanical arm moves along a pipetting collision-free track in the process of clamping an order coffee cup to move along the pipetting collision-free track; the liquid gravity center offset is measured in real time through a six-axis force sensor integrated on a clamping jaw, and lagging shake offset of a real-time acceleration sequence is carried out according to the real-time gravity center offset. The technical problem that in the prior art, when a mechanical arm of a coffee machine transports coffee drinks containing heterogeneous liquid, the displacement control stability is insufficient, and pouring and scattering are likely to happen is solved. The technical effects that the coffee liquid is effectively prevented from spilling and leaking in the transportation process, the transportation stability of complex coffee drinks containing ice blocks, foam and the like is remarkably improved, safety and high efficiency of collaborative operation of the multiple mechanical arms are ensured, and the delay or overflow risk caused by liquid shaking is greatly reduced are achieved.

The utility model relates to the technical field of production equipment of wire or cable overhead installation devices, and particularly discloses an automatic assembly system for a spacer wire clamp. A base in the assembly system comprises a plurality of bearing seats, and the bearing seats are connected with a bearing seat through displacement suites. The displacement suite comprises a driving device and a displacement control device for controlling the displacement amount of the object bearing seat. And the object bearing seat is provided with a limiting external member for fixing the spacer wire clamp. An automatic pin pressing device, an automatic welding device and an automatic polishing device are sequentially arranged along the moving path of the object bearing seat, and the automatic devices and the displacement suite are all connected with a master control device. Parameters such as displacement distance of the object bearing seat and the like are accurately controlled, so that the spacer wire clamp placed on the object bearing seat can be quickly and accurately moved into a processing area of each automatic device, and the processing accuracy of the spacer wire clamp is improved; and meanwhile, it is guaranteed that all the steps are tightly connected, and the machining speed of the spacer wire clamp is increased.

A proportional servo valve spool displacement control method taking unknown hysteresis compensation into consideration. The control method is based on the idea of using a parameter adaptive law to learn an inverse model of an unknown hysteresis phenomenon and making a desired output signal undergo an estimated inverse hysteresis model in advance, thereby designing a non-linear robust position controller for online inverse compensation of the unknown hysteresis phenomenon. To address the problem of there being hysteresis nonlinearity in the output electromagnetic force of a proportional solenoid that drives a spool to move, the method can not only ensure the active elimination of unknown hysteresis nonlinearity, but can also eliminate other disturbances that are difficult to model in a spool motion system, thereby improving the operability and performance consistency of a hydraulic valve and realizing high-precision tracking of the spool position.

The invention discloses an automatic ship driving control method and system based on artificial intelligence, and relates to the technical field of ship control, and the driving control steps are as follows: S1, obtaining a current two-dimensional coordinate position of a ship based on a satellite map, and obtaining wind direction data of the current two-dimensional coordinate position in a ship route based on a weather bureau, obtaining a ship route state construction data set; and S2, establishing a ship running model, predicting position and attitude changes of the ship in a future route in combination with real-time wind direction data, calculating a ship displacement control quantity in advance through a control algorithm, and counteracting offset generated by wind direction factors. According to the invention, the ship can timely and accurately return to a correct route, the navigation accuracy of the ship in a complex environment is greatly improved, fine adjustment of ship navigation parameters is realized, unnecessary energy waste is avoided, deviation from a target route is avoided, and the risks of collision and stranding are increased.

The invention discloses a digital hydraulic system and a control method. The system comprises a digital hydraulic valve, at least one hydraulic pump assembly and a controller. The digital hydraulic valve comprises at least one working unit, and each working unit comprises a main valve, a front differential pressure compensator and a pilot driving module used for driving and controlling the position of a valve element of the main valve. The differential pressure compensator adopts electric proportional control; the pilot driving module comprises a valve element displacement sensor used for detecting the actual displacement of a valve element of the main valve. The hydraulic pump assembly comprises a hydraulic pump, a variable displacement mechanism, a lead screw and a servo motor, the servo motor converts rotary motion into linear motion through the lead screw to directly control the variable displacement mechanism, and displacement control over the hydraulic pump assembly is achieved. An outlet of the hydraulic pump is connected to an inlet of the differential pressure compensator, an outlet of the differential pressure compensator is connected to an inlet of the working linkage main valve, and a working opening of the working linkage main valve is connected with the oil cylinder or the motor. And the servo motor, the differential pressure compensator and the pilot driving module are respectively in signal connection with the controller.

The invention discloses an electric pedal and an optimization design method and device thereof, and relates to the technical field of optimization design of electric pedals. According to the technical scheme, when design optimization is conducted on the electric pedal driven by the four-connecting-rod contraction and expansion mechanism to turn over, whether the pedal body of the electric pedal has inward horizontal displacement or not in the outward turning-over process of the electric pedal is judged during optimization, and when the pedal body has inward horizontal displacement, the electric pedal is driven to turn over by the four-connecting-rod contraction and expansion mechanism; if the outward displacement of the pedal in the horizontal direction cannot be accurately controlled on the basis of the structure of the current four-connecting-rod contraction and expansion mechanism, the position of the hinge point of the four-connecting-rod contraction and expansion mechanism is readjusted until the pedal is smoothly unfolded outwards in the overturning process. According to the technical scheme, the four-connecting-rod contraction and expansion mechanism of the electric pedal can be optimized, and the accuracy of horizontal displacement control during overturning of the electric pedal is improved. Meanwhile, according to the optimization design method, the overturning process of the electric pedal can be smoother, and the sensing quality of the electric pedal is improved.

The invention discloses a foundation pit safety evaluation method based on a deep horizontal displacement deformation area of a support structure, and compared with a traditional single-point displacement control method, the method adopts a parameter of a continuous deformation area, early warning can be performed through deformation area cumulative effect analysis when single-point displacement does not exceed a limit, and the safety of a foundation pit is ensured. Compared with a traditional method, the method has the advantages that the response time is advanced by 30%-50%, a key window period is reserved for engineering reinforcement, the limitation of traditional single-point control is broken through, the overall instability trend of the foundation pit is accurately recognized, and the engineering risk of local standard reaching and overall out-of-control is avoided. Meanwhile, dynamic correction and weight distribution measurement of a design threshold value and an alarm value are provided in combination with conditions such as a construction stage and geological conditions, the sensitivity of key areas (such as pit bottoms and support weak positions) can be enhanced, and the evaluation reliability in a complex scene is improved.

The invention discloses a method for rapidly and stably solving a buckling path after multiple critical points based on a generalized displacement control method. The method comprises the steps that S1, a state variable and an anchoring type secant predictor are initialized; s2, predicting a reference displacement, a calibration displacement and a load increment factor based on the state variable and the anchored secant predictor; s3, calculating the displacement increment of the current iteration step based on the reference displacement, the calibration displacement and the load increment factor, and updating the total displacement and the total load of the structure; s4, updating the geometric state of the structure and the internal force of the unit based on the displacement increment of the current iteration step; s5, calculating the difference value between the total internal force and the external load of the structure based on the updated geometric state of the structure and the unit internal force to obtain the unbalanced force of the structure, and performing error checking based on the unbalanced force of the structure; s6, executing the steps S1 to S5 circularly until the unbalanced force of the structure meets the balance condition, and starting the next increment step; and incremental analysis is executed until user requirements are met, and a buckling path after multiple critical points is output.

The invention relates to the technical field of proofreading devices, in particular to an automobile part proofreading device which comprises a supporting frame, a proofreading rod and a longitudinal displacement control mechanism, and in the process that the longitudinal displacement control mechanism drives the proofreading rod to move longitudinally, the proofreading rod stops moving after being blocked; the supporting frame is provided with a compression detector, and the compression detector corresponds to the calibration rod. The calibration rod is provided with an opening, and a measuring rod is arranged in the opening. The calibration device further comprises a measurement control mechanism, the measurement control mechanism is used for driving the measurement rod to extend out of the hole and contact with the inner wall of the punching hole, and the calibration is carried out in a secondary verification mode and drives the measurement rod to extend out of the hole of the calibration rod. The industrial computer knows whether the calibration rod is located at the circle center of the stamping hole or not according to the extension amount of the measuring rod, so that whether the stamping hole deviates or not is judged, and the problem that the stamping hole deviates but is still judged to be a qualified stamping hole is solved.

The invention discloses a strength detection tool and method for a composite cabin for an unmanned aerial vehicle. The detection tool comprises a cabin connecting plate, an end fixing device, a force application adjusting device and a deformation measuring structure. The force application adjusting device comprises a one-way stress application structure, a torsional stress application structure and a stress transmission structure. The stress transmission structure is provided with a special-shaped stress plate, a one-way stress transmission piece and a torsional stress transmission assembly. Particularly, a multi-linkage test structure is arranged, and conversion from torsional moment to radial one-way pressure is realized through geometric constraint and contact mechanics principles. According to the detection method, a step-by-step loading and multi-direction detection mode is adopted, initial detection, surface change detection and multi-direction comprehensive detection are achieved, and the preset deformation quantity is rapidly achieved through a displacement control mode by means of the qualified deformation quantity value detected last time. According to the invention, bending moment and torque load detection in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees can be completed through one-time clamping.

The invention discloses an auxiliary net rack ground lifting turnover displacement control device and a construction method thereof.The device comprises a ball support, a supporting frame, a limiting device and a jig frame, the ball support, the supporting frame, the limiting device and the jig frame are each of a steel structure, the ball support is fixed to a ball joint of a net rack and provided with a bracket, the supporting frame is arranged on the ground, and the limiting device is arranged on the supporting frame; the limiting device is installed on the supporting frame, the bracket can rotate on the limiting device, and the jig frame is arranged on the ground. When the net rack rotates by a set angle, the ball support is limited on the jig frame. According to the overturning device, the net rack can be overturned to a posture of 15 degrees, horizontal displacement cannot occur during overturning, the ball support, the supporting frame, the limiting device and the jig frame are all of steel structures, the good strength is achieved, deformation is not prone to occurring, the stress capacity is good, the steel structures limit and rotate ball joints of the net rack, the large-span and large-weight net rack can be overturned, and the overturning effect is good. And the influence of wind is avoided.

The invention discloses a suspension flux linkage repetitive control method for a single-winding bearingless flux switching motor. A rotor dynamic eccentric suspension flux linkage model is established according to a magnetic suspension rotor system of the single-winding bearingless flux switching motor; a model compensation repetitive controller with an integral element, a model compensator and a same-frequency phase shift notch filter is arranged in the magnetic suspension rotor system; the integration element is used for eliminating steady-state errors, the model compensator is used for obtaining inverse system output signals so as to obtain accurate displacement control signals, and the notch filter is used for reducing same-frequency pulsation of rotor radial displacement; an expected suspension flux linkage is obtained through calculation of the model compensation repetitive controller, the expected suspension flux linkage is compared with an actual flux linkage obtained by the flux linkage observer to obtain a flux linkage error, expected voltage is obtained through calculation of the flux linkage error, and therefore an inverter switching signal is obtained. According to the method, the radial displacement pulsation of the rotor under the steady-state working condition and the displacement sudden change phenomenon under the dynamic working condition are effectively treated, and good control is achieved.

The invention provides a press-fitting machine displacement control system and method and a storage medium, the system comprises a control unit, a display unit, a communication unit, a driving unit and a press-fitting unit, and the press-fitting unit comprises an absolute encoder; wherein the display unit receives press fitting parameters and sends the press fitting parameters to the control unit through the communication unit; the control unit generates corresponding actual motion parameters according to the received press fitting parameters and sends the actual motion parameters to the driving unit through the communication unit, and the driving unit drives the press fitting unit to move; the control unit obtains the absolute position, recorded by the absolute encoder, of the press fitting unit and the increment position recorded by the absolute encoder, generates a position feedback signal based on the absolute position and the increment position, and sends the feedback signal to the driving unit through the communication unit to complete displacement control over the press fitting machine. The number of defective motor products can be reduced, and the displacement control accuracy of the pressing machine is improved.

A yielding seismic element includes one or more displacement control elements connected to a yielding element. The yielding element is designed to deform under seismic forces. When the yielding element experiences an instance of local deformation, the displacement control elements interact with a displacement restraint fixed relative to the yielding element. The displacement restraint prevents further deformation at the instance of local deformation.

The invention provides a vehicle transportation control method and device based on a throwing box and electronic equipment, and relates to the technical field of throwing box control, a box body of the throwing box is connected with a vehicle through a 360-degree track, and the box body is correspondingly provided with a box body displacement control device; the method comprises the following steps: in response to a direction control operation for a driving direction control operation device, transmitting a direction control instruction corresponding to the direction control operation to a box body displacement control device; based on the direction control instruction, the specified vehicle body weight corresponding to the vehicle and a front road condition image of the vehicle acquired by an image acquisition device, analyzing and predicting the to-be-driven angle of the vehicle and the to-be-moved intensity of the vehicle through an AI system; and according to the to-be-driven angle and the to-be-driven moving intensity, the box body is controlled to move and / or rotate on the track through a box body displacement control device, so that the inertia force caused by the to-be-driven moving intensity and the to-be-driven angle to the box body is counteracted in advance through second displacement of the box body relative to the vehicle.

The invention belongs to the technical field of heavy-load vehicle control, and particularly discloses a bottom die trolley walking control method and system, and the control method comprises the steps: starting a task and setting parameters; collecting multi-dimensional data in real time; a displacement target is judged; calculating theoretical motion parameters; target torque distribution and instruction adjustment; and finishing the task and resetting the system. According to the control method, torque control, speed control, displacement control and energy consumption optimization are fused, a closed-loop feedback strategy, a fuzzy PID self-adaptive algorithm and a multi-motor cooperative algorithm are utilized, and track pre-detection and energy recovery are combined, so that the heavy-load and high-rigidity bottom die trolley can still run stably and accurately under the non-ideal track condition, and the control method is suitable for large-scale production. The control precision and stability of trolley running are remarkably improved, running deviation caused by poor rails and structural rigidity is reduced, the linear and dimensional precision of segmental beam prefabrication is guaranteed, and meanwhile the equipment failure rate, the maintenance cost and the energy consumption are reduced.

The invention relates to the field of Hall element forming, in particular to a Hall element forming device and method.The Hall element forming device comprises a forming workshop, a transmission belt, a lower die, a linear driving part, a linkage arm A, a linkage arm B, a linkage arm C, a linkage arm D, an upper die, a dryer, a coating nozzle and a cleaning nozzle; a transmission belt is mounted inside the forming workshop; equidistantly distributed lower molds are welded on the outer surface of the transmission belt; a linear driving part is mounted in the middle of the upper end of the forming workshop; according to the invention, the working procedures are integrated, surface coating can be immediately carried out after cutting and forming, residues in the mold are thoroughly removed, and the forming efficiency of the Hall element and the product quality of the Hall element are greatly improved; and meanwhile, one linear driving structure can synchronously and intermittently translate through four linkage arms according to a preset program, accurate displacement control can be provided, and it is ensured that all devices can accurately reach preset positions in the machining process.

The invention relates to the field of polishing and grinding equipment, in particular to a single-degree-of-freedom constant-force polishing and grinding device which comprises a main support, a rotating motor is installed above the main support, a voice coil motor is installed on the bottom face of the main support, the output end of the rotating motor is coaxially connected with a spline shaft, and the spline shaft sequentially penetrates through the main support and the voice coil motor to be arranged. The lower portion of the spline shaft is sleeved with a spline sleeve, the spline sleeve slides in the axial direction relative to the spline shaft and is fixed in the circumferential direction, the spline sleeve is fixed in the axial direction relative to the output end of the voice coil motor and rotates in the circumferential direction, and a polishing and grinding head is installed on the lower portion of the spline sleeve. The polishing and grinding device is composed of main shaft rotating motion driven by the rotating motor and linear displacement motion driven by the voice coil motor along the main shaft, and has the advantages of being simple in control mode, high in response speed, high in displacement control precision and the like.

The invention discloses a drilling device for deep foundation pit engineering construction, and relates to the technical field of foundation pit drilling. Comprising a drilling installation part, an old hole positioning part is installed on the drilling installation part, and the old hole positioning part is used for limiting the drilling installation part; a hole sticking piece is mounted on the old hole positioning piece; the hole sticking piece is used for sticking a steel sheet pile hole; a displacement detection piece is mounted on the hole pasting piece; the displacement detection piece is used for controlling and compensating drilling offset; a displacement control piece is mounted at the bottom of the displacement detection piece; the problems that according to an existing drilling device for deep foundation pit engineering construction, adjacent drill holes are prone to deflection, automatic compensation of drill hole deflection is inconvenient, and soil is prone to falling into old holes are solved. The displacement control piece is adopted, the old hole positioning piece can be controlled, pressure is applied to the drill bit body in a compensating mode, the drill bit body can be assisted to drill holes with higher precision, and follow-up smooth installation of the steel sheet pile is promoted.

The invention discloses a hydraulic pump dynamic flow control method and system based on load feedback, and relates to the technical field related to hydraulic pumps, and the method comprises the steps that the load pressure of a hydraulic pump is monitored in real time, a first load pressure signal is generated, and a target flow parameter is set; a load pressure-flow mapping graph is constructed through dynamic mapping; dynamically responding to generate load compensation parameters to carry out load control on load pressure; and deviation calculation is carried out on the target flow parameter based on the second load pressure signal, a flow deviation signal is obtained to carry out dynamic flow control on the hydraulic pump, a flow displacement control result is fed back to carry out real-time correction on the load compensation parameter, and a flow closed-loop backtracking control channel is constructed. The technical problems that in the prior art, the flow control response of the hydraulic pump is lagged under the variable load working condition, the control precision is insufficient, and the energy efficiency is low are solved, and the technical effects that the dynamic response speed, the control precision, the stability and the energy efficiency of flow control of the hydraulic pump are improved are achieved.

The invention discloses a land freeze-thaw wind erosion simulation measurement device, which relates to the technical field of soil testing and comprises a testing box, and temperature controllers are symmetrically mounted at the top end of the inner side of the testing box. The functions of slope adjustment, displacement control and dynamic driving are integrated through linkage design, the frozen soil wind erosion testing efficiency and precision are remarkably improved, a slope adjustment mechanism is driven by a bevel gear set, a supporting frame is driven to move reversely through a reverse spiral groove, automatic adjustment of the inclination angle and orientation of the frozen soil slope is synchronously achieved, and manual procedures are reduced; the displacement mechanism drives frozen soil to perform horizontal displacement and vertical reciprocating motion through gear-fluted disc transmission, simulates dynamic interaction and dispersion erosion effects of a natural wind field, observes and reveals a wind erosion positive feedback mechanism in combination with micro-topography evolution, and improves data universality; the driving mechanism utilizes an electric push rod and a double-shaft motor to cooperatively control meshing switching of a bevel gear set and a movable / fixed gear, precise switching of gradient adjustment and a dynamic displacement mode is achieved, and testing continuity is guaranteed.

The invention discloses a conveying type transfer device for preventing steel pipes from shaking, and relates to the technical field of transfer devices.The conveying type transfer device comprises a supporting assembly, a conveying assembly and a transfer assembly, the supporting assembly comprises a support, multiple sets of bearing seats are symmetrically and fixedly connected to the top of the support, and driving shafts are installed between the multiple sets of bearing seats; a plurality of conveying rollers are fixedly connected to the outer surface of the driving shaft at equal intervals. According to the conveying type transferring device for the steel pipes, when the conveying type transferring device for the steel pipes is used, the multiple steel pipes can be blocked through the multiple inserting blocks, an inclined block is driven to move through operation of a third motor, the inserting blocks at any position can be controlled to move up and down through the displacement of the inclined block, and therefore the multiple steel pipes are controlled to slide down in sequence to be transferred and conveyed; and through position positioning and transfer control in the steel pipe transfer process, the conveying state of the steel pipes is stable, and the steel pipes are prevented from being collided and damaged in the conveying process.

The invention relates to a model test device and method for researching multi-degree-of-freedom intelligent control loading of a shared anchor. The device comprises a base; the model box is provided with a gate-type reaction frame with the degree of freedom in the Y direction; the first actuation injection assembly is movably arranged on the gate-type reaction frame, has degrees of freedom in the Z direction and the X direction, and is configured to press the shared anchor into the test depth of the model box; and the loading mechanism is arranged on the gate-type reaction frame and comprises a loading frame assembly with a degree of freedom along the Z direction, and a second actuation loading unit and a third actuation loading unit which are arranged on the loading frame assembly. The device can simulate the penetration, horizontal static and dynamic loading process of the shared anchor in the soil under different site conditions and different loading conditions (including static and dynamic loading in the horizontal direction, the vertical direction, multiple directions, force control and displacement control conditions), and can accurately collect and analyze all necessary data at the same time.

The invention belongs to the technical field of fluid transmission and control, and particularly relates to a high-frequency switch valve control multi-cylinder synchronous jacking control system and method. The control system comprises jacking equipment, N sets of hydraulic cylinders arranged below the jacking equipment and a hydraulic system used for controlling the N sets of hydraulic cylinders to stretch out and draw back. The hydraulic system comprises an oil tank, a filter, a hydraulic pump, a motor, an overflow valve, a first one-way valve, an energy accumulator, N high-frequency switch digital valve sets and N double-acting hydraulic control one-way valves, wherein the N high-frequency switch digital valve sets and the N double-acting hydraulic control one-way valves are in one-to-one correspondence with the N hydraulic cylinders. Any hydraulic cylinder passes through a hydraulic cylinder control loop composed of a high-frequency switch digital valve set and a double-acting hydraulic control one-way valve, the N sets of hydraulic cylinders adopt the same oil tank, main oil inlet path and main oil return path, it is guaranteed that the hydraulic cylinder control loop has high switching frequency, the displacement control precision is improved, and the working efficiency is improved. The problems that in the prior art, a multi-cylinder synchronous jacking control system is poor in synchronization precision, poor in system stability and low in response speed are solved.

The invention provides a method and a system for analyzing influence of local loading and unloading on deformation of an existing shield tunnel, and relates to the field of influence of foundation pit construction on the existing tunnel. The method comprises the steps that shield tunnel vertical additional stress caused by foundation pit excavation is calculated through a Mindlin stress solution; analyzing the influence of the longitudinal axial force on the flexural rigidity and shear rigidity of the circular seam joint, and dividing a joint deformation mode into three stages according to the relative magnitude of the axial force and the bending moment and the vertical displacement between rings; a tunnel displacement control equation is established based on a Winkler foundation model, loop iteration is conducted through a state space method, and the rigidity of a circular seam joint is dynamically adjusted to be matched with the final deformation mode of the circular seam joint; and finally, constructing a prediction system, and outputting a deformation value of the shield tunnel by inputting the number of iterations and parameters of a foundation pit, bolts, concrete and segments. By means of the method, deformation prediction of the existing shield tunnel can be achieved for foundation pit construction, an effective scientific basis is provided for foundation pit engineering construction, the problem that parameter decision of operators on a construction site is difficult is solved, and foundation pit engineering site construction is truly guided.

The invention provides a learning rate adaptive bearingless magnetic flux switching motor neural network PID suspension method, which is used for PID magnetic suspension control of a motor PID controller on a rotor, and adjusts a neural network weight coefficient in real time according to a rotor radial displacement control error so as to realize real-time adjustment of parameters of the neural network PID controller. Establishing a neural network PID parameter learning rate value range according to a neural network PID closed-loop control stability requirement; within a learning rate value range, designing a self-adaptive learning rate adjustment algorithm based on fuzzy reasoning for high-steady-state control precision and high-dynamic response of the dynamic eccentric magnetic suspension of the rotor in a wide range; the method can meet the requirements of magnetic suspension high-steady-state control precision and high dynamic response of wide rotor dynamic eccentricity.

The invention discloses a fracturing equipment displacement control method and fracturing equipment, and relates to the field of oil and gas equipment. According to the control method for the displacement of the fracturing equipment, the fracturing equipment comprises at least one fracturing pump set, and each fracturing pump set comprises a plurality of fracturing pumps; the control method comprises the steps that the actual total displacement of the fracturing pump set is obtained, and the set control displacement deviation value of the fracturing pump set is obtained according to the actual total displacement and the preset total displacement; when the group control displacement deviation value is not zero, the fracturing pump with the minimum gear and the highest health degree priority in the fracturing pump group is obtained, whether the actual single-machine displacement of the fracturing pump reaches the preset single-machine displacement or not is determined, and if yes, the fracturing pump is determined as the fracturing pump needing displacement regulation and control; the displacement of the fracturing pump needing to be regulated and controlled is distributed, and the target gear and the target rotating speed of the fracturing pump are obtained according to the distributed displacement; and the fracturing pump is regulated and controlled to the target gear and the target rotating speed. The problems that the requirement for manually adjusting the output displacement of the fracturing pump is high, and operation is inconvenient can be solved.

The invention discloses an automatic coil winding device which comprises a clamping unit, and the clamping unit is used for clamping and fixing a framework and enabling the framework to rotate in the circumferential direction of the framework; the displacement control unit is used for controlling the metal wire to be wound to move in the three-dimensional space; a metal wire to be wound is connected with the displacement control unit through a tension control system; when the automatic winding device is used, the framework is fixed on the clamping unit, and the displacement control unit controls a metal wire to be wound to be wound on the framework. According to the device, automatic winding of the coil is achieved, standardization and intelligentization of the coil winding process are achieved, the induction coil winding efficiency is improved, and the stability and consistency of products are improved.