519 results about "Pressure feedback" patented technology

The invention relates to the technical field of spinning machines, in particular to a spinning machine precision control method suitable for a high-temperature working condition, and the method comprises the following steps: collecting multi-source information; establishing a mapping relation between the thermal error and the temperature field to obtain a thermal error prediction model, training and correcting the thermal error prediction model, and outputting a real-time thermal error prediction value; generating a comprehensive position compensation instruction and performing position compensation; the pressure feedback value collected in real time is compared with a corresponding preset threshold value, if the pressure feedback value collected in real time is larger than or equal to the corresponding preset threshold value, the comprehensive position compensation instruction is converted into a force control instruction, and if the actual axial pressure feedback value or the actual radial pressure feedback value is smaller than the corresponding preset threshold value in the force control process, the comprehensive position compensation instruction is converted into the force control instruction. If yes, returning to the position compensation mode. According to the method provided by the invention, comprehensive compensation and active inhibition of thermally induced errors can be realized, and the forming precision of high-temperature spinning and the surface smoothness of a workpiece are remarkably improved.

The invention relates to the field of machining, and discloses an adjustable wood-working machining multifunctional clamping and positioning method which comprises the following steps: S1, acquiring three-dimensional space position information of a workpiece through laser scanning, and generating point cloud data containing a texture trend; s2, analyzing geometrical characteristics and mechanical characteristics of the workpiece based on the point cloud data, generating a clamping position distribution instruction and matching a clamping mode; s3, a grading pressure threshold value is set according to the wood density grade, and cooperative force application control of multiple clamping arms is dynamically adjusted based on distributed pressure feedback; and S4, fusing the vibration spectrum and the visual displacement data to monitor the position offset of the workpiece in real time. Through a dynamic pressure balancing strategy, according to wood density grading, pressure threshold values are set, gradient pressure control is conducted on hardwood, slope changes are limited, pre-pressing relaxation time is configured for cork wood, multiple clamping arms are adjusted in real time to cooperatively apply force through distributed feedback, and the structural integrity of wood of different densities is guaranteed.

The invention discloses a phased array ultrasonic detection rough surface coupling agent dynamic supplementing and sealing system which comprises a flexible sealing structure, a coupling agent supply unit, a pressure feedback control unit and a self-adaptive attaching structure. A flexible sealing structure is adopted to form a continuous liquid coupling film between the probe and the detected joint, and the coupling agent supply unit actively supplies liquid to keep the thickness of the liquid coupling film stable in a range of 0.5-1.5 mm so as to reduce ultrasonic energy loss and a blind area; in addition, the coupling agent liquid can be controlled not to leak or the leakage can be controlled within an acceptable range through the sealing mechanism, and the coupling agent supply unit is matched to continuously and stably supply the liquid, so that the coupling layer is ensured to be uninterrupted in the scanning process.

The invention discloses a pressing device for rubber product processing, and relates to the technical field of press machines for rubber processing, the pressing device comprises a press machine rack, a press roller driving mechanism, a pressure adjusting piston, a main press roller, an auxiliary press roller, a pressure feedback piece, a magnetic compensation piece and a rubber contour prediction piece, the press machine rack is internally provided with a pressing chamber; a main compression roller and an auxiliary compression roller are installed through a supporting seat and driven by a compression roller driving mechanism to rotate, a pressure adjusting piston adjusts the overall pressure of the main compression roller, a pressure feedback piece on the main compression roller can dynamically detect the pressing pressure and generate a magnetic field, and a magnetic compensation piece of the auxiliary compression roller is matched with the magnetic field to achieve local pressure compensation. Compared with an existing press machine, the press machine has the advantages that the press fit quality and stability of rubber products can be improved through pretreatment detection, gradient pressure compensation and multi-parameter cooperative control, and the production efficiency is improved. And the universality and adaptability of equipment are enhanced.

The invention discloses an intelligent rehabilitation bed body dynamic supporting system based on pressure feedback, and relates to the technical field of intelligent rehabilitation bed body dynamic supporting, and the intelligent rehabilitation bed body dynamic supporting system comprises a sensing acquisition module, a data fusion module, an individual modeling module, a strategy generation module, an execution driving module, a state feedback module and a remote interaction module; the sensing and collecting module is used for collecting pressure, temperature, humidity and heat distribution information of a contact area of a bedridden patient and a bed body in real time in a distributed multi-mode sensing mode and outputting original sensing signals. The data fusion module is used for performing multi-source data fusion processing on the original sensing signals from the sensing acquisition module by adopting a Kalman filtering algorithm, extracting comprehensive health indexes reflecting the microcirculation state of local tissues, and outputting fused physiological evaluation data; and the individual modeling module is used for training the body type, the weight, the medical history information and the historical pressure distribution data of the patient by adopting a machine learning model.

The invention relates to the technical field of photovoltaic module manufacturing, in particular to a photovoltaic module vacuum laminating system based on dynamic pressure feedback. The dynamic pressure adjusting module comprises a piezoelectric film sensor and a servo motor, the piezoelectric film sensor is used for detecting the pressure borne by the photovoltaic module, and the control module calculates and obtains the real-time optimal pressure and then controls the servo motor to act so as to achieve the real-time optimal pressure; the heating control module comprises a heating plate, a thermal infrared imager and a PID temperature control unit, the heating plate is used for heating the photovoltaic module, the thermal infrared imager is used for detecting the surface temperature distribution of the photovoltaic module, and the PID temperature control unit is used for controlling the temperature of the heating plate; the vacuum control module comprises a plurality of air chambers which are independently arranged, each air chamber is provided with an air inlet pipeline and an air outlet pipeline which are communicated with the laminating machine cavity, and micro electromagnetic valves are arranged on the air inlet pipelines and the air outlet pipelines.

The invention belongs to the technical field of machine room inspection, and particularly discloses a communication machine room inspection device and method based on computer vision, and the device comprises an inspection vehicle, a buffer seat, a loading seat, a camera, an execution mechanism and an image processing system, the buffering seat is provided with mechanical anti-shake structures such as a sliding groove, a sliding block, a movable frame and a spring damper, and the influence of vehicle body vibration on image acquisition stability can be effectively reduced. The device further comprises functional components such as a laser distance sensor and a mechanical arm. The method comprises the steps of image acquisition, image comparison, abnormity identification, operation execution, pressure feedback control and the like, and can realize automatic abnormity identification, target positioning, intervention execution and alarm and report generation. The intelligent, automatic and anti-interference capabilities of communication machine room inspection are improved, and the system is suitable for high-frequency, large-scale and multi-type equipment inspection scenes.

The invention relates to a compensation method of a spring compression type grinding sleeve wear compensation device based on an Archard model. The spring compression type grinding sleeve wear compensation device based on the Archard model comprises a grinding shaft, a grinding sleeve, a spring compression assembly, a parameter acquisition module, a compensation execution mechanism and a control module. According to the solution integrating abrasion prediction, real-time monitoring and dynamic compensation, accurate compensation of abrasion of the grinding sleeve is achieved by constructing the abrasion prediction model fusing the compression characteristics of the spring and combining a pressure feedback adjusting mechanism, and the stability and consistency of the machining process are guaranteed.

The invention discloses a carbon sequestration CO2 multi-layer injection and production collaborative balance system and method.The carbon sequestration CO2 multi-layer injection and production collaborative balance system comprises a multi-layer injection mechanism, a collaborative extraction mechanism and a regulation and control mechanism, the multi-layer injection mechanism comprises an injection well, an injection allocation device and a two-way packer, the injection well vertically penetrates through 2-4 target reservoirs, and the injection allocation device vertically penetrates through the two-way packer; each target reservoir in the injection well is correspondingly provided with an injection allocation device and a two-way packer, each injection allocation device comprises a pressure sensor, a flow controller and a communication module, the collaborative extraction mechanism comprises a plurality of water production wells, the water production wells are arranged on the periphery of the injection well, and the two-way packers are arranged on the periphery of the injection well. Each water production well corresponds to one target reservoir, an adjustable water pumping screen pipe, a pressure feedback valve and a flow metering device are correspondingly arranged in each water production well, the regulation and control mechanism comprises a controller and an optical fiber monitoring device, and the controller is electrically connected with the optical fiber monitoring device, the pressure sensor, the flow metering device and the pressure feedback valve. The carbon sequestration CO2 multi-layer injection-production collaborative balance system provided by the invention has the advantages of high safety and high efficiency.

The invention discloses a self-adaptive apple maturity lossless picking flexible claw and a picking method. The device comprises a base assembly, and a visual recognition module, a flexible clamping jaw assembly, a distributed pressure sensing module, a transmission execution module and a control unit are integrated on the base assembly. And the visual module adopts a depth camera and a YOLO11n model, judges the maturity grade in real time based on the apple red area proportion and is matched with the corresponding grabbing threshold force. The pressure sensing module is a thin film pressure sensor, and multi-point pressure feedback is achieved through a plurality of pressure detection points. The transmission module adopts a single motor to drive a lead screw nut lifting table, opening and closing of clamping jaws are synchronously controlled, the structure is light and simple, and cost is low. The picking method follows the process of recognition, matching, force control and picking, a cutter is not needed, lossless and high-success-rate self-adaptive picking is achieved, the problem of damage or failure caused by traditional fixed force control is effectively solved, the method is suitable for dense orchards, and the intelligent and lossless levels of apple picking are improved. The control unit is low in response delay and small in overshoot, and it is ensured that the grabbing force is accurately matched with the fruit state.

The invention discloses an oil storage tank body surface polishing treatment device, and relates to the technical field of tank body polishing, the oil storage tank surface polishing treatment device comprises a base and an oil storage tank, the base is provided with a plurality of rotating supports and auxiliary supports, the oil storage tank is placed between the rotating supports and the auxiliary supports, and the oil storage tank surface polishing treatment device further comprises a polishing assembly and a pressure monitoring mechanism; the polishing assembly and the pressure feedback mechanism are arranged on the two sides of the oil storage tank correspondingly. Pressure changes are monitored in real time through the pressure monitoring mechanism, the polishing condition of protrusions such as weld beading on the peripheral face of the oil storage tank can be accurately reflected, and therefore the polishing assembly is accurately shut down or the displacement mechanism continues to push the polishing assembly forwards, and the subsequent part of the oil storage tank is polished; and the problem of excessive polishing or insufficient polishing is avoided, accurate polishing treatment on the peripheral face of the oil storage tank is achieved, and the polishing effect is guaranteed.

The invention relates to the technical field of medical auxiliary equipment, in particular to a self-adaptive pressure sore prevention supporting device based on pressure feedback. According to the technical scheme, the self-adaptive pressure sore prevention supporting device based on pressure feedback comprises a supporting device body, an adjusting mechanism, an adjusting type supporting plate, an air bag assembly, a pressure sensing assembly, a supporting bracket, a control table, an alarm assembly and an air pump, the adjusting mechanism is arranged on the surface of the supporting device body, and the adjusting type supporting plate covers the surface of the adjusting mechanism; an air bag assembly is arranged on the surface of the adjustable supporting plate, a pressure sensing assembly is arranged in the air bag assembly, and a supporting bracket is arranged on the bottom face of the supporting device body. The pressure monitoring and distribution analysis module is arranged, the flexible film pressure sensor array adopts a piezoresistive sensing unit and temperature compensation film composite structure, full-contact-surface continuous pressure collection is achieved, preventive pressure dispersion is achieved through the intelligent deformation execution module, and shear force damage caused by response delay of a traditional device is avoided.

The invention relates to the technical field of rolling equipment, in particular to a linkage adjusting mechanism for roller spacing and pressure detection, an adjusting method and a three-roller machine, the adjusting mechanism achieves precise adjustment of the roller spacing through linkage of a supporting seat, a bearing seat, a connecting rod assembly and a linear driving part, and pressure is monitored in real time through a pressure sensor on a connecting rod. The three-roller machine is integrated with the adjusting mechanism and further comprises a rotation driving mechanism for driving the rollers to rotate and a feeding and discharging component. According to the adjusting method, by fixing or driving the linear driving piece and the bearing seat, roller distance adjustment and pressure real-time monitoring are achieved. The device solves the problems that traditional equipment is low in adjusting precision, lags behind pressure detection and the like, has the advantages of being good in adjusting synchronism, timely in pressure feedback and wide in application range, and can be used for material rolling and dispersion machining.

The utility model relates to the field of injection pumps, and discloses an injection pump with pressure feedback, which comprises an injection pump support, a plurality of injection pump mechanisms and a pressure feedback device. The injection pump mechanism comprises a pump body, an injection syringe propelling mechanism, a pressure sensor and an injection syringe bayonet, the pump body is clamped with the injection pump main frame, the injection syringe propelling mechanism is fixedly installed on the pump body and fixedly connected with the pressure sensor, the injection syringe bayonet is installed on the pump body, and the injection syringe propelling mechanism is fixedly connected with the pressure sensor. The injector pushing mechanism comprises an installation block and a hydraulic cylinder, the installation block is fixedly installed on the pump body, and the bottom of the installation block is fixedly connected with the hydraulic cylinder. The utility model has the following advantages and effects: after a specific pressure is reached, the injection pump is not propelled any more, so that the filter is protected from being damaged by high pressure of liquid, normal proceeding of an experiment is ensured, simultaneous work of one or more injection pump mechanisms is supported, and the large-batch filtering requirement is conveniently met.

The invention discloses a self-adaptive presswork binding method based on pressure feedback, and relates to the technical field of presswork binding. The method comprises the following steps: firstly, acquiring data such as a paper laminated structure and stress distribution by utilizing equipment such as a terahertz time-domain spectrometer, and analyzing paper components and coating thickness; secondly, combining a quantum annealing model with a digital twinning technology to optimize binding parameters, and predicting a wrinkle risk; during binding, the system establishes a pressure-displacement curve, piezoelectric ceramic micro-vibration friction reduction is adopted, and ultrasonic local softening is triggered if pressure is abnormal; after binding, detecting the quality by means of spectral domain OCT and Raman spectrum, and embedding a digital watermark; and finally, constructing a knowledge graph based on a graph neural network and a block chain, rapidly adapting to a new paper type through meta-learning, and realizing edge end deployment by using knowledge distillation. According to the scheme, the binding qualification rate is greatly increased, the equipment loss is reduced, the new paper adaptation time is shortened to 5 minutes from 2 hours, and the production efficiency is increased by nearly two times.

The invention discloses an intracranial pressure intelligent monitoring system, which relates to the technical field of intracranial pressure monitoring, and comprises a continuous pressure conduction chain construction module for establishing a continuous pressure conduction chain of an intracranial pressure signal, carrying out time sequence segmentation analysis on the intracranial pressure signal acquired in real time, and obtaining a continuous pressure conduction chain of the intracranial pressure signal; identifying a section with lagging and smooth abnormity in the pressure feedback curve, and determining the section as a nonlinear response positioning range; and the elastic pressure buffer window adjusting module introduces an elastic pressure buffer window in the nonlinear response positioning range and adaptively adjusts the width of the elastic pressure buffer window according to the pressure change rate of the adjacent time slices. By constructing a continuous pressure conduction chain and introducing an elastic buffering and layering rearrangement mechanism, it is ensured that an intracranial pressure signal accurately reflects true pressure changes in the abnormal stage. Through dynamic weight band and rhythmicity balance regulation and control, self-adaptive stability of signal energy and a time structure is achieved, and continuity and early warning accuracy of intracranial pressure monitoring are improved.

The invention relates to the technical field of diaphragm pump automatic control, in particular to a diaphragm pump self-adaptive pressure relief and stabilization control method based on pressure feedback, which comprises the following steps: configuring reference parameters before starting and detecting faults of a pressure sensor, a pump driving unit and an electromagnetic pressure relief valve; obtaining an effective pressure value through moving average filtering; dynamically adjusting PID parameters according to the pressure deviation and the change trend; and pump rotating speed adjustment, graded pressure relief or emergency shutdown are executed according to the normal area, the early warning area and the overpressure area. The method effectively improves the pressure stabilization precision and the pressure relief response flexibility, comprehensively avoids the equipment fault risk, adapts to the working conditions of multiple fields, and remarkably enhances the reliability and practicability of system operation.

The invention discloses a ring-down light cavity precision pressure control method and device based on enhanced data-driven PID, and the method comprises the steps: 1) building a ring-down light cavity pressure control device, and integrating a pressure sensor, a proportional valve, a digital multimeter, a DC power supply, a vacuum pump and other key parts; 2) acquiring a proportional valve driving voltage and a pressure feedback signal based on LabVIEW, and constructing a discrete time ARX model of the system; (3) on the basis of the model residual error and the real-time error, an enhanced data driving algorithm is adopted to carry out online self-adaptive updating on PID parameters; 4) filtering high-frequency noise by using a second-order Bessel low-pass filter to improve the signal stability; and 5) realizing closed-loop control under the LabVIEW platform, and monitoring and maintaining the operation performance of the system in real time. The method has the advantages of model self-learning, parameter self-tuning, high robustness, high control precision and the like, is particularly suitable for scenes such as high-precision spectral measurement with extremely high requirements on pressure stability, and has remarkable engineering practical value and popularization and application prospects.

The invention provides a large air exhaust compressor unit header pipe pressure strong anti-interference control method, and belongs to the technical field of aero-engines, and the method comprises the steps: building an air exhaust header pipe pressure controlled object model, and obtaining a state space model; constructing a bipolar discrete tracking differential module, and obtaining a pressure instruction filtering signal and a pressure instruction differential signal of a pressure given value, and a pressure feedback filtering output and a pressure feedback output differential signal of a pressure measurement signal with noise; constructing a discrete nonlinear extended state observation module to obtain a total disturbance real-time observation estimated value; inputting the parameters into a nonlinear fast convergence stability control module to generate an actual control input quantity; updating a control input gain estimation value of the regulating valve in real time based on a parameter self-tuning algorithm; and the steps are repeated, and large air exhaust compressor unit header pipe pressure strong anti-interference control is achieved. The dynamic response speed, the robustness and the anti-interference capability of the control system are improved, and the adjustment time and the dynamic deviation are shortened.

The invention relates to the technical field of automatic control, and discloses an automatic control method and system for bearing grease injection. The method comprises the steps that weight data in the grease injection process are collected, a weight change curve is obtained after filtering, and the flow pulsation amplitude is calculated; when flow pulsation is abnormal, pump cavity volume and pipeline impedance parameters are obtained, pump speed correction is calculated based on pressure feedback, the pump rotating speed is adjusted, and preliminary stable flow is obtained; the state of the servo system is monitored based on the initial stable flow, if the resonance peak value exceeds the limit, servo parameters are optimized, the pumping pressure is adjusted in combination with a temperature compensation mechanism, and a compensation pressure signal is obtained; the overshoot of the pressure signal is evaluated, if the overshoot exceeds the limit, the control parameters are adjusted, the pressure deviation is corrected, a final grease injection instruction is generated in combination with backpressure suppression, precise grease injection is executed, and the weight accumulation change is monitored to judge the completion state; and the deviation between the actual total grease injection amount and the target amount is calculated, the current parameter is recorded as the initial set value of next grease injection if the precision reaches the standard, and the control precision of the grease injection process is improved.

The invention discloses a pneumatic conveying flow self-balancing control method based on multi-point pressure feedback, and belongs to the technical field of industrial process intelligent control. Comprising the steps of collecting system operation data in real time through a sensor network arranged at key nodes of a pneumatic conveying pipeline, preprocessing the collected system operation data, constructing a space-time sequence data set, inputting the space-time sequence data set into a pre-trained flow balance degree identification model, and identifying the flow balance degree of the pneumatic conveying pipeline. The method comprises the following steps: acquiring a system flow balance degree, a flow estimated value of each branch and a system abnormity score, inputting the system flow balance degree, the flow estimated value of each branch and the system abnormity score into a multi-objective optimization control algorithm, generating an optimal control instruction, issuing the control instruction to each execution mechanism for execution, and according to system response, controlling the execution mechanism to execute the optimal control instruction. And repeating the steps in the next control period to realize closed-loop control. Balanced control over the flow of all the branches of the pneumatic conveying system is achieved, energy consumption is reduced, the material blocking fault is effectively prevented, and the system stability and the production efficiency are improved.

The invention relates to the technical field of new energy automobile high-voltage wiring harness production detection, in particular to a high-voltage wiring harness part assembly detection system and a control method, and the system comprises a sensing layer, a control layer and an execution layer, the sensing layer comprises a visual recognition module, a laser ranging module and a pressure feedback module; the visual identification module comprises an industrial camera and an annular light source, the laser ranging module comprises a laser ranging sensor, the pressure feedback module comprises a pressure sensor, the control layer comprises an industrial controller and a feature database, the industrial controller is in signal connection with the feature database, and the execution layer comprises an indicator lamp, a buzzer, a pneumatic clamp lock and a conveying belt. And the indicating lamp, the buzzer, the pneumatic clamp lock and the conveyor belt are all in signal connection with the industrial controller. The problems of neglected loading and disqualification of the high-voltage wire harness in the assembling process at the present stage, low manual visual inspection efficiency and limitation of a single detection means at present are solved.

The invention relates to the technical field of monitoring control, and discloses a gas pressure real-time monitoring method and system of a diaphragm compressor. The method comprises the steps that diaphragm surface vibration signals are collected through a three-axis acceleration sensor, and vibration time domain data are obtained; a main frequency component, a power spectrum density value and a frequency band power spectrum integral value are extracted through fast Fourier transform, and vibration spectrum features are formed; according to the corresponding relation between the frequency and the pressure, the vibration characteristic parameters are subjected to weighted calculation, and a real-time gas pressure feedback value is obtained; the system sets upper and lower limits of pressure, a change rate and a fluctuation adjustment threshold value, automatically adjusts and controls the pressure, and outputs a corresponding adjustment instruction when the pressure exceeds any threshold value. The accuracy and reliability of gas pressure monitoring of the diaphragm compressor are improved.

The invention discloses an intelligent segmented water injection system and method for coal seam gas extraction drilling based on stress response. An underground PLC (Programmable Logic Controller) and a pressure regulating pump station comprise a PLC, a pressure regulating electric pump, an electronic pulsation regulating valve and a pressure feedback sensor, and are arranged in an underground control roadway or a position close to a drilling hole; the air bag type multi-section hole sealing mechanism is composed of a plurality of phi73 double-channel expansion type air bag units, and each hole sealing unit is independently controlled by a hydraulic system and installed in the axial direction of a drill hole. The matched double-channel water injection drill rod and pulse spray head assembly comprises a hollow double-channel steel water injection drill rod, a flexible water conveying inner pipe and directional pulse spray heads located in all hole sealing sections. The ground water supply and proportional mixing wetting agent system comprises a ground water supply system, a three-way proportional mixer and a dosing pump; the coal stress and fracture structure comprehensive monitoring module is used for collecting key response information in the water injection process; the ground remote control and data analysis platform comprises an underground control cabinet and a ground data platform; the gas extraction efficiency can be improved.

The invention relates to a static balance real-time control method and system for a wearable tactile feedback device, and aims to provide an efficient, accurate and real-time static balance control scheme. According to the system, COP position data of a user is collected in real time through the pressure center COP collection module, and timely normal pressure feedback is provided in combination with the wearable tactile feedback device, so that the balance state of the user is adjusted. The system adopts an advanced data processing algorithm, supports multiple feedback control mode linear, quadratic and logarithmic functions, and can calculate COP offset in real time and generate corresponding feedback signals. Through the interactive interface, a user can conveniently set control parameters and display the COP track in real time. The system is widely applied to the fields of exercise training, rehabilitation treatment and virtual reality, has high-precision and low-delay feedback control capability, can effectively improve the accuracy and real-time performance of balance adjustment, fills the blank in the prior art, and has relatively strong application prospects and market potential.

The invention discloses a terminal pressure feedback variable frequency pump set cooperative adjustment method. A terminal pressure sensing module, a central control module, a variable frequency driving module and a plurality of variable frequency pumps connected in parallel are included. The throttling loss of the valve is avoided through the precise feedback of the tail end pressure and the cooperative adjustment of the variable frequency pump set, so that the pump set always operates in a high-efficiency interval (the efficiency is improved to more than 85%), and the energy is saved by 30-50% compared with the traditional constant-speed pump system; and meanwhile, multi-pump cooperative adjustment avoids long-term operation of a single pump in a low-efficiency interval, and the energy utilization rate is further increased. And the tail end pressure stability is high, the tail end most unfavorable point pressure is monitored in real time, and the tail end pressure fluctuation range is controlled within + / -0.02 MPa in combination with quick response adjustment within 50 ms, so that the problem of insufficient or overpressure of a far-end user is effectively solved, and the user experience is improved.

The invention relates to the technical field of metal pipe machining, in particular to a seamless steel pipe cutting-off device which comprises a bottom plate, a feeding mechanism, a supporting mechanism and a cutting-off mechanism, and the cutting-off mechanism comprises an annular cutting assembly, an inner supporting mechanism and an ejection assembly. The feeding mechanism and the supporting mechanism are matched to achieve coaxial positioning and precise feeding of the seamless steel pipe, the inner supporting mechanism drives a first supporting roller to form circumferential dynamic supporting in the steel pipe through a hollow shaft, precise adjustment is achieved in cooperation with pressure feedback, and pipe deformation is avoided; the girdling assembly achieves accurate girdling through gear transmission and electric push rod driving and is suitable for steel pipes of different specifications; the ejection assembly completes end face polishing while automatically discharging, and the fan blades synchronously achieve cooling and chip removal.

The invention discloses a wall detection device for architectural design, and relates to the technical field of wall detection, the wall detection device comprises a detection main frame body, a first motor and a second motor are symmetrically mounted on the upper surface of the bottom of the detection main frame body, and output shafts of the first motor and the second motor are fixedly connected with a lifting mechanism; the wall detection device for architectural design further comprises a pressure gauge and three contact wheels which are arranged in an arc shape to form an integral contact surface, the transverse moving mechanism is linked with the lifting mechanism to perform multi-area detection on the wall, and when the pressure adjusting mechanism performs movement detection in the vertical and horizontal directions, the pressure adjusting mechanism can adjust the pressure in the vertical and horizontal directions. The abutting wheels conduct abutting type elastic pressure self-adjustment on the radian of the wall and feed pressure elasticity back to the pressure gauge, the auxiliary deformation mechanism is matched with the radian through elastic deformation of the center and the abutting wheels on the two sides, and the comprehensive pressure of the abutting wheels on the wall is transmitted to the pressure gauge. The multi-dimensional cooperative detection optimization effect of a mechanical structure, pressure feedback and motion control is achieved.

The invention provides an intelligent medical bed and a control method.The medical bed comprises a bed body frame and a bed surface covering the bed body frame, and the bed surface is composed of liftable units arranged in an array shape; each lifting unit comprises a lifting driving assembly, a supporting piece and a flexible supporting block, and a pressure sensor is arranged on each flexible supporting block and can detect the surface pressure in real time; the intelligent medical bed further comprises a central control system, and the central control system is electrically connected with the lifting units and used for receiving feedback signals of the pressure sensors and independently controlling lifting of the lifting units. The central control system is further connected with a posture scanning module and used for obtaining three-dimensional shape data of the body surface of the patient and generating an individualized bed surface supporting scheme through a built-in posture adjusting algorithm in combination with feedback of the pressure sensor. Multi-point independent adjustment can be achieved, intelligent pressure feedback is achieved, personalized body positions are supported, and the comfort and safety of a patient are improved.

The invention relates to a hydraulic station pressure closed-loop energy-saving control system and method.The hydraulic station pressure closed-loop energy-saving control system comprises a PID adjusting controller, a servo motor and a hydraulic pump, a control signal is input into the PID adjusting controller, the PID adjusting controller adjusts the servo motor according to feedback of speed and pressure signals, the adjusted signal is input into the servo motor, and the servo motor is controlled by the PID adjusting controller. The servo motor acts according to the adjusting signal and drives the hydraulic pump to output pressure. A constant-frequency asynchronous motor used at present is replaced by the servo motor, a servo driving system, a pressure feedback sensor and other assemblies are additionally arranged in a matched mode to form a servo variable-speed control system, pressure and flow form double-closed-loop control, on-demand energy supply of the hydraulic pump is achieved, power matching is optimized, and electric energy waste during low-flow work of the hydraulic station is reduced. According to the electro-hydraulic servo control system, pressure and speed double-closed-loop control is adopted, accurate energy supply according to needs is really achieved, shutdown operation can be achieved in the long-time pressure maintaining or intermittent stage, and therefore optimal energy supply is achieved.