792 results about "Local pressure" patented technology

The invention discloses a sliding bearing friction wear prediction method based on fluid mechanics, and relates to the technical field of mechanical state monitoring, and the method comprises the steps: collecting single-point temperature, local pressure, vibration time domain signals and a bearing pedestal inclination angle through a sensor, and generating sensor data; performing field reconstruction based on a fluid mechanics conservation equation on the sensor data to obtain multi-field data; performing spatial alignment on the multi-field data, inputting the multi-field data into a long short-term memory (LSTM) network, and generating wear state characteristics; training a sparse correlation vector machine regression model RVM by using the historical wear data, establishing a nonlinear mapping relationship between the wear state characteristics and the wear depth, taking the wear state characteristics as the input of the vector machine regression model RVM, and outputting the predicted wear depth; sensor data and the predicted wear depth are fused in real time through Kalman filtering, and when prediction deviation exceeds a covariance threshold value, vector machine regression model RVM parameters are updated.

The invention discloses a hydraulic system throttling control method based on a hydraulic control one-way valve, which relates to the technical field of throttling control, and comprises the following steps of: in an initialization stage of starting a hydraulic system, setting an optimal initial throttling opening for a throttling valve based on flow data of current oil; the method comprises the following steps: performing high-frequency real-time acquisition on flow state data of oil through a sensor deployed at the upstream of a throttling area, and establishing a set of flow state data system based on a time sequence; continuously collected flow state data are divided according to time windows, and an analysis set of oil flow data is constructed. According to the method, the dynamic flowing state of oil is monitored and deeply analyzed in real time, the load state is intelligently predicted in combination with a support vector machine model, and the opening degree of the throttling valve is adjusted in real time; the problems that in the prior art, response of a throttling control strategy to a high-load working condition is delayed, and oil temperature rise and viscosity abnormal reduction are caused by serious local pressure loss of a throttling area are effectively solved.

The present invention relates to a multi-region collaborative control method and device for a high-precision pressure sensor array. The method: based on a first collaborative sampling parameter, data is collected from multiple sensor units in a pressure sensor array to obtain a pre-processed pressure data set and a sensor unit spatial position matrix; a spatial weighted pressure covariance matrix is ​​constructed; eigenvalue decomposition and information entropy calculation are performed, and the number of target pressure points is determined according to the minimum description length criterion and the information gain ratio; a pressure feature subspace and a local perception domain are constructed; the pre-processed pressure data set is projected onto the pressure feature subspace to generate a sensor unit state data set; a multi-layer attention encoder is input for processing, and the first collaborative sampling parameter of the pressure sensor array is adjusted to obtain a second collaborative sampling parameter. The implementation of the present invention improves the system's response sensitivity to local pressure changes, thereby realizing multi-region collaborative control of pressure sensing.

The invention relates to the technical field of manipulators, in particular to a numerical control machine tool manipulator which comprises a manipulator body, a fixing frame is arranged on the manipulator body, a fixing disc is fixedly connected to the fixing frame, an adjusting mechanism is fixedly connected to the fixing disc, and a plurality of first suckers are fixedly connected to the lower surface of the middle of the fixing disc. A plurality of second suction cups are arranged on the fixing disc in a sliding fit mode, a plurality of transmission mechanisms are arranged on the lower surface of the fixing disc in a sliding fit mode, a plurality of third suction cups are arranged on the lower surface of the fixing disc in a sliding fit mode, and anti-blocking mechanisms are fixedly arranged in the first suction cups, the second suction cups and the third suction cups. And by arranging the adjusting mechanism, the heights of the multiple second suction cups on the outer side can be adjusted, so that the device can better adapt to inverted-T-shaped workpieces, and more uniform adsorption force is provided. Adsorption force is dispersed through the multiple suction cups, the adsorption area can be increased, stability is improved, and the problem that local pressure is too large is solved.

The invention discloses an intelligent pressure self-adaptive anti-bedsore nursing mattress system which comprises a flexible pressure sensing layer configured on the surface of a mattress and used for monitoring pressure distribution data of all parts of the body of a lying person in real time; the multi-air-chamber dynamic adjusting structure comprises a plurality of independent air chambers capable of being inflated and deflated, and the air chambers are distributed in the mattress and used for adjusting the supporting pressure of the corresponding areas according to instructions; the edge intelligent control module analyzes data based on a preset artificial intelligence algorithm to predict a bedsore occurrence risk area, and generates a control instruction according to a prediction result to drive the multi-air-chamber dynamic adjustment structure to adjust the pressure of each air chamber; and the environment regulation and control system comprises a temperature and humidity sensor and a microenvironment regulation device. Through real-time body pressure monitoring, AI risk prediction, dynamic pressure regulation and temperature and humidity coordinated regulation and control, local pressure can be remarkably reduced, a high-risk area can be early warned in advance, and a local microenvironment is improved, so that bedsores are effectively prevented, and nursing dependence is reduced.

The invention belongs to the technical field of bridge engineering, and aims to eliminate the problem of systematic underestimation of web bearing capacity under the condition of standard effective loading length. The invention provides a method for correcting a local pressure bearing capacity calculation formula of a steel beam web, which comprises the following steps of: identifying and determining a key parameter ratio and an engineering application range thereof by carrying out sensitivity parameter analysis on a bending reduction coefficient; on the basis of the reference engineering case, fixed values are taken from part of parameters, and other geometric quantities are inversely calculated; based on a preset variable sequence, finite element models are established in Abaqus in batches, and the ultimate bearing capacity and the flange longitudinal stress level of each model are extracted; the standard calculation value is corrected according to a finite element result, the corrected ultimate bearing capacity of the steel beam web is calculated, and a corrected bending reduction coefficient is obtained accordingly; and finally, fitting a corrected formula about the regularized slenderness ratio on the correction coefficient by taking the specification parameter as an independent variable to obtain an expression capable of directly replacing the original specification. The method can significantly improve the calculation precision.

The invention discloses a low-flow precision detection metering method suitable for a water meter, which comprises the following steps: S1, arranging a texture coating on the surface of a fluid channel in the water meter, interacting a groove with fluid to generate periodic pressure pulsation, collecting a local pressure fluctuation signal generated when the fluid passes through the groove, and processing to obtain a first flow value; s2, full-band pressure pulsation signals at an outlet of the water meter are collected, a pressure-flow model is established, and a second flow value is obtained; s3, constructing a first fusion model, and inputting the first flow value and the second flow value into the first fusion model to obtain a preliminary fusion flow value; s4, inputting the preliminarily fused flow value and environmental parameters into a correlation model to obtain a corrected flow value; and S5, constructing a second fusion model, inputting the corrected flow value and the predicted flow value into the second fusion model, and outputting a low-flow metering result of the water meter. According to the invention, the applicability and reliability of the water meter in a low-flow scene are enhanced.

The invention relates to the technical field of automatic control, in particular to a low-temperature control system of a centrifugal variable-frequency magnetic suspension water chilling unit, which comprises an environment heat parameter detection module, a condensation pressure deviation identification module, a condensate water flow rate regulation and control module, a refrigerant flow evaporation linkage module and an energy consumption curve dynamic construction module. According to the method, the inlet and outlet water temperature of the condenser and the external air temperature are collected, and synchronous filing and water temperature difference rate normalization processing are combined, so that when the external temperature changes drastically, the abnormal trend of water temperature change lag can be captured in time, and the condensation instability risk is pre-judged in advance; based on local pressure change rate gradient density analysis, abnormal fluctuation of condensation pressure is precisely discriminated, the problem that the local instability risk is covered by a global mean value is avoided, and the early warning timeliness is improved; the flow speed of condensate water is dynamically adjusted according to condensation instability characteristics, PID dynamic correction is conducted by extracting the rotating speed and flow speed error of a water pump, it is ensured that the heat exchange performance of a condenser continuously meets the low-temperature change requirement, and the condensation pressure stability is remarkably improved.

The utility model relates to the technical field of lead frame stamping, and discloses a stamping die for lead frame production, which comprises an upper die and a lower die, a driving part is arranged between a lower die base and an upper die base, a plurality of stamping heads are arranged at the bottom of the upper die side by side, the heights of the plurality of stamping heads are sequentially reduced from the middle to the outside, and the stamping heads are arranged on the lower die base. Two positioning pieces used for flexibly fixing the lead frame are symmetrically arranged at the two ends of the bottom of the upper die, the driving piece comprises a base, and the lower die base is fixedly arranged on the base. The stamping head at the bottom of the upper die base is changed into a form that the middle is high and the two sides are gradually reduced, so that the influence of deformation of the die on the local pressure height of the upper die in the stamping process is counteracted, and the local pressure borne by pins of each row of products during stamping is improved from the original small middle pressure and large two-side pressure to the same middle pressure and two-side pressure; therefore, the lead frame stamping quality is improved.

The invention provides a casting and forging composite forming method and die for an aluminum alloy structural part. A certain downward pressing amount is reserved for a male die; the cavity is filled with the metal melt at a certain speed under the pushing of the injection punch; increasing the pressure of the punch and maintaining the pressure (indirect extrusion casting); the pressurizing pin is started to carry out local pressurizing feeding; and the male die moves downwards by a certain distance, high pressure is applied, and closed die forging is conducted on the casting in the semi-solidified state. The mold structure comprises a shell part, a forming part, a flash storage and exhaust part, a pouring system, a temperature adjusting and monitoring system and a demolding system. The extrusion casting process and the closed die forging process are integrated in one set of die and are achieved through the extrusion casting machine, the performance of a final product is better than that of an extrusion casting method, the forming process is easier to achieve compared with forging, meanwhile, the production cost is lower, and the method is particularly suitable for forming machining of high-performance safety parts, structural parts and complex parts.

In a system and a method for adjusting seat belt pressure, in which while a passenger in a vehicle is wearing a seat belt, a webbing shape and pressure applied to a passenger's body by webbing can be detected, and webbing pressure adjustment drive devices can be operated based on the detected data so that local pressure applied to the passenger's body by webbing can be reduced, thereby relieving seat belt pressure. The system can include body pressure sensors, a camera, a controller, and various webbing pressure adjustment drive devices.

The invention provides a curved surface detection method and device for an ergonomic chair back and a storage medium, and relates to the technical field of irregular surface detection. Comprising the following steps that S1, a plurality of detection units abutting against the curved surface of the chair back are provided, and each detection unit outputs pressure according to the height of the curved surface; s2, the multiple detection units are adjusted to be in a standard state, and in the standard state, each detection unit abuts against the curved surface of the standard chair back; s3, enabling the plurality of detection units to abut against the curved surface of the chair back to be detected so as to output and upload pressure; and S4, processing the uploaded pressure, and judging whether the curved surface of the to-be-detected chair back is qualified or not. According to the application, the plurality of local pressures of the curved surface of the chair back are detected in combination with the plurality of detection units, the curved surface bending shape of the chair back can be accurately detected and whether the curved surface of the chair back is qualified or not can be judged by analyzing and processing the plurality of local pressures, and the technical deficiency in the aspect at present is made up.

The invention discloses a gas lift reverse circulation drilling starting pressure and circulation gas supply pressure calculation method. The method comprises the following steps that S1, hydrostatic pressure of the bottom of an inner pipe of a double-wall drill rod is calculated; s2, calculating the friction loss pressure of compressed air of an outer annulus of the double-wall drill rod; s3, calculating the friction loss pressure of the compressed air flowing through the earth surface gas transmission channel; s4, calculating the local pressure loss of the compressed air passing through the orifice in the gas-liquid mixer from the outer pipe of the double-wall drill rod; s5, calculating the liquid phase flow friction pressure loss of the inner pipe of the double-wall drill pipe; s6, calculating the liquid-phase flow friction pressure loss of the deslagging pipeline; s7, calculating the three-phase flow pressure drop of the inner pipe of the double-wall drill pipe; and S8, the starting pressure and the circulating air supply pressure are calculated. According to the method for calculating the starting pressure and the circulating gas supply pressure of the gas lift reverse circulation drilling, the starting pressure and the circulating gas supply pressure of the gas lift reverse circulation drilling can be accurately and conveniently calculated by accurately calculating the pressure of each part of the gas lift reverse circulation drilling process, and a theoretical basis is provided for stable and efficient operation of a circulating system.

The invention discloses an intelligent layering and guiding device for highway tunnel fire smoke and a control method, and relates to the technical field of tunnel fire safety, a smoke flow Froude number is introduced as a direct control target, the parameter represents the ratio of smoke flow inertia force to buoyancy force, the numerical value directly determines the stability of a layering interface, and the layering interface can be directly controlled. The Froude number of each subarea of the tunnel is calculated in real time through a sensing network and is compared with a critical value calibrated through an experiment, when a real-time value is lower than the critical value, it is indicated that inertia force is relatively insufficient, the buoyancy effect is dominant, and instability and entrainment are likely to happen to an interface between a smoke layer and lower cold air, and then according to a control algorithm, the smoke layer and the lower cold air are controlled. The micro jet fan applies directional inertia force to a smoke layer by adjusting the angle and the speed, the intelligent induction smoke outlet optimizes local pressure difference and flow by adjusting the opening degree and assists in maintaining flowing, the smoke flowing state is actively locked in a stable layered flow interval, and mixing and sedimentation caused by flow state instability are prevented.

The invention relates to the technical field of hot stamping equipment, and discloses a digital plane and curved surface dual-purpose image-text hot stamping machine system for the surface of a cylindrical product, which comprises a modular structural design, a dual-mode positioning system and a digital control unit, the self-adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure, and the dual-mode positioning system comprises a plane mode and a curved surface mode. According to the hot stamping machine system, a self-adaptive hot stamping head adopts a pneumatic / hydraulic driven flexible stamping module, a pressure sensor array is arranged in the self-adaptive hot stamping head to adjust local pressure in real time, a dual-mode positioning system is adopted, a vacuum adsorption platform is adopted in a plane mode, a curved-surface mode programmable rotary clamp is adopted, 0-300 rpm stepless speed regulation is supported, a dual-mode hot stamping mechanism is initiated, and the self-adaptive hot stamping head is applied to the hot stamping machine system. The plane / curved surface mode is switched within 10 seconds through the quick-change interface, the hot stamping track is adjusted in real time based on workpiece three-dimensional scanning data, and the waste film recovery rate is increased to 95% or above through the environment-friendly hot stamping film recovery system.

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 belongs to the field of target drone fuel oil systems, and particularly relates to a self-adaptive supersonic speed target drone fuel oil system and a control method thereof. The system comprises a machine body oil tank, a first electromagnetic valve, an overflow valve, a pressurization oil tank, a fuel pump, an engine pump, a monitoring module and a control module. The body fuel tank comprises a main fuel tank and an auxiliary fuel tank which are arranged in a fuel tank in the middle of the target drone body and located in front of and behind the theoretical mass center of the target drone respectively. The pressurization oil tank is additionally arranged in the fuel oil cabin, fuel oil in the engine body oil tank enters the pressurization oil tank for pressure maintaining after being pressurized by the fuel oil pump, and then oil is supplied to the engine from the pressurization oil tank, so that stable oil supply to the engine is achieved by establishing a local pressure environment instead of a large pressure environment of the whole fuel oil cabin, and therefore when a fuel oil system works, the fuel oil can be stably supplied to the engine. The oil supply flow and pressure are controlled in a closed-loop mode in real time through the control system according to the engine state.

The invention relates to the technical field of medical care, and particularly discloses a massage device for clinical care. Bionic massage mechanisms are mounted on the outer walls of the two sides of the massage bed, and a stimulation massage mechanism is mounted in the middle of the bottom end of the massage bed; the bionic massage mechanism comprises a multi-degree-of-freedom mechanical arm, a mounting mechanism, a massager, a moving block, a moving screw rod, a fixed frame and a driver, the mounting mechanism is mounted at one end of the multi-degree-of-freedom mechanical arm, and the massager is clamped and mounted at the other end of the mounting mechanism; through cooperative operation of the multi-degree-of-freedom mechanical arm and the driver, complex actions of kneading, pushing and pressing, tapping and the like of a professional rehabilitatrist can be simulated, massage manipulations are greatly enriched, the massage effect is remarkably enhanced, a pressure sensor arranged on the massager can monitor local pressure intensity changes of a massage part in real time, and the massage effect is improved. When the pressure intensity reaches a preset threshold value, the controller can automatically adjust the massage intensity, and it is ensured that the massage process is effective and safe.

The invention relates to a massager, and belongs to the technical field of massage devices. Comprising a massage device main body and two massage elements which are oppositely arranged on the circumferential wall surface of the main body, the two massage elements swing synchronously and oppositely in the axis direction of the massager body. Relative swinging of the massage elements can cover the two sides of the target massage area, and the problem that local pressure is not uniform due to single-side action is effectively solved. The discomfort caused by asynchronous stimulation is reduced through synchronous and opposite swinging, and more natural and comfortable massage experience is provided for a user.

The utility model discloses a multi-working-condition full-automatic pool cooling system which comprises a vacuum water tank, the vacuum water tank is connected with a cooling water pump inlet pipeline, and the cooling water pump inlet pipeline is connected with the inlet end of a low-temperature cooler and the inlet end of a high-temperature cooler. Outlet pipelines of the low-temperature cooler and the high-temperature cooler are connected with a water tank side water supply pipeline; the cooling water pump inlet pipeline is provided with a cooling water pump, the pipeline of the cooling water pump is provided with a cooling water pump inlet electric ball valve, and the outlet pipeline of the cooling water pump is provided with a cooling water pump outlet local pressure gauge and a cooling water pump outlet remote transmission pressure transmitter; the inlet ends of the low-temperature cooler and the high-temperature cooler are connected with a circulating cooling water pipeline, and all the electric valves and the sensors are electrically connected with the control cabinet. The control system compares the real-time temperature value of the cooling water with the set value of the system, manual valve opening and closing and water pump starting are not needed, the function requirement for adjusting the temperature of the cooling water is met, and the system can be suitable for various working conditions.

The invention relates to the technical field of toy detection, and discloses a doll model toy pressure resistance detection device and detection method.The doll model toy pressure resistance detection device comprises a base and four guide columns installed on the base, the four guide columns are connected with a top seat, a flexible clamp A is arranged in the base, and the height of the flexible clamp is adjusted through a lifting device; and the ejector pin of the flexible clamp A extends out of the base. When the flexible clamp A and the flexible clamp B make contact with the doll model toy, self-adaptive deformation can be conducted according to the shape of the doll model toy. In this way, in the pressure testing process, the clamp can be tightly attached to the surface of the toy, it is guaranteed that the pressure is evenly applied, damage to the doll model toy caused by too large local pressure is avoided, and therefore the pressure resistance of the toy under different pressures can be more accurately detected.

The invention belongs to the field of pipeline installation, and particularly relates to a building supply and drainage system water pipe installing and fixing structure which comprises a U-shaped frame used for bearing a plurality of water pipe bodies, a groove is formed in the front face of the U-shaped frame, and a plurality of sets of fixing mechanisms used for installing and fixing the water pipe bodies are arranged in the groove. When the water pipe bodies are installed and fixed, surrounding type fastening of the water pipe bodies can be rapidly achieved through cooperation of the clamping assemblies and the connecting pieces, then installation of the clamping assemblies can be rapidly completed through the installation pieces, and then the multiple water pipe bodies can be further fastened at the same time through cooperation of the fine adjustment assemblies and the U-shaped frames; compared with a traditional fastening mode only depending on bolts, the multiple fastening mode not only can ensure the convenience when the water pipe body is installed, but also can increase the contact area with the water pipe body through encircling fastening, avoids sinking deformation of the water pipe body caused by too high local pressure, and ensures the conveying efficiency of the water pipe body.

The invention relates to the technical field of numerical control, in particular to a numerical control machine tool machining clamp which comprises a fixing table, a connecting table is arranged at the bottom of the fixing table, a bottom supporting seat is arranged at the bottom of the connecting table, a first rotating bearing is arranged on the inner wall of the fixing table, and a placing table is arranged on the outer wall of the first rotating bearing. According to the numerical control machine tool machining clamp, the flexible jaw is arranged at the top of the containing table, damage to the surface of a workpiece in the machining process is reduced to the maximum extent through the arrangement of the flexible jaw, compared with a rigid jaw, the flexible jaw can evenly disperse clamping force, damage to the surface of the workpiece due to too large local pressure is reduced, and the machining efficiency is improved. The appearance and the precision of a workpiece can be better kept, so that the surface of the workpiece is protected, the machining yield of the workpiece is ensured, the clamping requirements of workpieces of different shapes, sizes and materials can be met, jaws of different specifications do not need to be frequently replaced, the machining efficiency is improved, and the tool cost is reduced.

The utility model discloses a hot airflow pipeline flexible connector, which relates to the technical field of tobacco processing equipment, and comprises two horn-shaped connectors, one end of one horn-shaped connector is connected with one end of the other horn-shaped connector, and the other end of the other horn-shaped connector is connected with the other horn-shaped connector. According to the utility model, the trumpet-shaped connector is beneficial to providing a larger surface area at the joint, so that the stress is dispersed, the local pressure caused by thermal expansion and cold contraction is reduced, the gas flow is more smooth, and the heat exchange efficiency is improved. The pressure loss when gas passes through a connecting part is reduced, and when a pipeline system expands or shrinks due to temperature change, the relative displacement between the double-horn-shaped connectors can absorb the change, so that the pipeline is protected from being damaged.

The present invention provides an adaptive radial-thrust integrated bearing suitable for high-speed and heavy-load conditions, comprising a bearing body, a thrust fixed pad and a radial tilting pad, wherein the bearing body comprises a radial part and a thrust part; the thrust fixed pad is fixedly installed at one end of the thrust part along the circumferential direction, and the radial tilting pad is arranged inside the radial part along the circumferential direction; a cavity structure is arranged on one side of the thrust fixed pad for forming a friction pair, for forming an oil film, and the radial tilting pad comprises a load-bearing radial tilting pad and an unload-bearing radial tilting pad, and micro-textures are distributed on the load-bearing radial tilting pad. The radial part pad of the present invention is provided with micro-textures at the load-bearing part, which can effectively reduce the contact area between the friction pairs, thereby reducing contact deformation and local pressure concentration, and further reducing the friction coefficient; the thrust part pad is provided with a cavity structure, which can greatly reduce the lubricating oil temperature between the friction pairs, ensure the fluid viscosity, and greatly improve the axial load-bearing capacity and anti-eccentric load performance of the bearing.

The opposite-pull assembly for improving the crack resistance of the UHPC cast-in-place slab joint interface comprises side fixing plates arranged in a UHPC prefabricated bridge deck slab along the two sides of a joint and opposite-pull screws stretching across the joint to be detachably fixed to the side fixing plates in an opposite-pull mode, and the opposite-pull screws are distributed in the longitudinal direction of the joint at equal intervals. Opposite pressure stress is generated on the side fixing plates by adjusting the axial displacement of the opposite-pull screw rods, a plurality of local pressure bearing areas continuously distributed in the longitudinal direction of the joint are formed between the side fixing plates, and the opposite-pull screw rods comprise inner screw rods arranged in the UHPC prefabricated bridge deck slab and outer screw rods arranged on the lower end face of the UHPC prefabricated bridge deck slab; a pair of opposite pressure stress is generated on the rear end area of a side fixing plate steel plate located in the UHPC cast-in-place slab through the opposite-pull screws, and a plurality of local pressure bearing areas continuously distributed in the longitudinal direction are formed in a joint area, so that the interface of the core part of the area is subjected to the action of the core pressure, and the crack resistance of the joint interface of the UHPC cast-in-place slab is improved.

The invention provides a machining tool for fixing a rotor room, and relates to the technical field of machine tool machining, the machining tool comprises a base, a supporting part and clamping parts, the supporting part is used for supporting the bottom of the rotor room, the multiple clamping parts are arranged at equal intervals in the circumferential direction of a preset axis, and the axis of the rotor room coincides with the preset axis; the clamping part comprises a support and two clamping plates, the clamping plates are made of elastic materials, the support is provided with a moving part and a middle part which are connected with the clamping plates, the two clamping plates are arranged on the inner side and the outer side of the side wall of the rotor room respectively, and the moving part enables the two clamping plates to be close to each other in the radial direction of the rotor room and abut against the side wall of the rotor room. And meanwhile, the middle part enables the clamping plates to generate deformation attached to the side wall of the rotor room so as to fully clamp the side wall of the rotor room in the radial direction, the supporting area of the clamping plates to the rotor room is large, the multiple clamping parts enable supporting points to be reasonably distributed, the local bearing pressure of the rotor room is reduced, elastic deformation or plastic distortion of the rotor room is reduced, and therefore the machining precision is guaranteed.

The invention discloses a steel ladle slag line magnesia carbon brick masonry positioning device, and particularly relates to the technical field of steel ladle slag line masonry, the steel ladle slag line magnesia carbon brick masonry positioning device comprises a supporting ring located above a steel ladle, a positioning masonry assembly is arranged at the bottom of the supporting ring, and the positioning masonry assembly comprises a first gear ring arranged at the bottom of the supporting ring; and the bottom of the first gear ring is fixedly connected with a reinforcing ring. A first motor drives a gear ring to transmit and drives a reinforcing ring to rotate, all hinge blocks drive a masonry pressing plate to deflect synchronously in the same direction by means of sliding fit of an inclined guide groove and a sliding column, the masonry pressing plate forms circumferential synchronous pressurization on a brick ring through an abutting arc plate, it is ensured that the brick ring bears uniform pressure in the whole circumferential direction, and the construction efficiency is improved. The problem that local pressure is not uniform in manual masonry is solved, a core foundation is laid for forming a stable self-locking structure for the brick ring, meanwhile, mechanization of pressurization operation is achieved, manual pressurization is replaced, and the labor intensity of foundation pressurization is greatly reduced.

The invention relates to the technical field of agricultural equipment, and discloses a raspberry lossless picking device based on tactile feedback and a picking method.The raspberry lossless picking device based on tactile feedback comprises a bottom plate, a collecting basket is fixedly installed on one side of the top end of the bottom plate, and a mechanical arm is fixedly installed on the other side of the top end of the bottom plate; a mounting frame is fixedly mounted on the mechanical arm, a supporting plate is fixedly mounted on the mounting frame, a clamping assembly is mounted on the supporting plate, a cutting assembly is arranged above the clamping assembly, an electric push rod is fixedly mounted on the side, away from the clamping assembly, of the mounting frame, and a feeding cylinder is arranged below the clamping assembly; continuous water flow is formed by injecting water into the flexible conveying cylinder, raspberries slowly fall down along with the water flow, collision force is buffered through a liquid medium, friction and impact between the raspberries and the inner wall of a pipeline and between the raspberries and fruits are reduced, and particularly epidermis breakage caused by local pressure concentration at the bent position is avoided.

The invention discloses a partial pressure type extensible medical elastic cap, and relates to the technical field of neurosurgery postoperative nursing instruments, the partial pressure type extensible medical elastic cap comprises a partition debugging assembly, the outer surface of the partition debugging assembly is provided with a connecting assembly, and the partition debugging assembly comprises an elastic cap body. According to the partial pressure type extensible medical elastic cap, in order to improve the practicability of the elastic cap for head pressure bandaging after the craniocerebral operation, the main body width of the elastic cap body is increased to 10 mm, the gradient pressure weaving technology is adopted, the central area is formed by processing a high-elasticity weaving layer, the low-pressure area is formed by processing a low-elasticity weaving layer, the cutting feeling can be reduced, and the elastic cap is more practical. The elastic cap can be prevented from being in contact with auricles, opening and closing of the elastic cap can be achieved through the combination of the two corresponding neodymium magnets, the purpose of locally pressurizing the head of a patient can be achieved by pressurizing the air bag, and the elastic cap is convenient to use. The problem that a traditional medical elastic cap in the prior art is simple in structure and low in practicability is solved.