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10results about How to "Reduce precision error" patented technology
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Integral hoisting construction method for pre-buried anchor bolts of column equipment
The application discloses a kind of tower equipment pre-buried anchor bolt integral hoisting construction methods, first, the positioning axis consistent with the axis of positioning mould is ejected along the center of equipment foundation;After installing vertical support, positioning mould is hoisted as a whole, and each anchor bolt is sequentially assembled into the mounting hole of positioning mould, so that positioning mould and anchor bolt are connected into a whole in the air;The positioning mould and anchor bolt that have been assembled are hoisted into the equipment foundation insert bar, after anchor bolt anchor plate falls below horizontal support elevation, horizontal support construction is carried out, then positioning mould and anchor bolt are dropped to positioning mould support frame, anchor bolt is calibrated and reinforced, then steel binding, formwork installation and concrete pouring are carried out, equipment foundation construction is completed, and formwork is removed and positioning mould is removed.The application adopts positioning mould and anchor bolt integral assembly in the air, reduces the precision error generated by secondary assembly on site, and improves the pre-buried anchor bolt integral hoisting efficiency.
Owner:CHINA CHEM ENG SECOND CONSTR
Material handling and assembly system
The application discloses a material conveying and assembling system, which comprises a material conveying device and a material assembling device. The material conveying device comprises a first track plate and a sliding block. A material conveying mechanism is arranged on the sliding block. The first track plate is provided with a track groove to define the running track of the sliding block. The track groove comprises a synchronization section arranged on the side close to the material assembling device. The synchronization section is an arc concentric with the material assembling device, so that the material on the material conveying mechanism coincides with the mold cavity or the insert track on the forming mold when the sliding block passes through the synchronization section. The synchronization section on the track groove cooperates with the sliding block to make the material on the material conveying mechanism have a longer track coincidence interval with the mold cavity or the insert on the forming mold. The track coincidence time of the material and the mold cavity or the insert is prolonged, the feeding time is better grasped, and the feeding precision and the assembling quality of the material are improved.
Owner:贺贤榜
Symmetrical crankshaft and oblique slot shaft combination structure and application thereof in large flow metering pump
ActiveCN120845297BEasy to adjustreduce vibrationPositive displacement pump componentsPump controlControl theoryMetering pump
The application discloses a symmetrical crankshaft inclined groove shaft combined structure and application in a large-flow metering pump, relates to the technical field of metering pumps, and comprises an adjustable eccentric wheel which is rotationally arranged in a connecting frame, performs eccentric rotation, and drives the connecting frame to reciprocatingly move; a pin which is fixedly connected with the adjustable eccentric wheel; an inclined groove shaft which is slidingly connected in a hollow pipe, the adjustable eccentric wheel is slidingly sleeved on the inclined groove shaft, and the adjustable eccentric wheel is driven to rotate; and an adjusting groove which is arranged on the inclined groove shaft, the pin is slidingly connected in the adjusting groove, and the adjusting groove comprises a fast adjusting section and a slow adjusting section, and the inclination angle of the fast adjusting section is larger than that of the slow adjusting section. Through the cooperative action of the fast adjusting section and the slow adjusting section, in the flow adjusting process of the metering pump, when the pin moves in the fast adjusting section, the large inclination angle can be used to realize the rapid adjustment of the flow, and when the pin moves in the slow adjusting section, the small inclination angle can be used to adjust the flow with high precision.
Owner:WENZHOU OUDE GAS VALVE
Ground subsidence monitoring method, device, equipment, storage medium and program product
ActiveCN121557951BSettlement accurateAccurate monitoring of settlementHeight/levelling measurementNeural learning methodsGround subsidenceData set
The application discloses a kind of ground surface settlement monitoring method, device, equipment, storage medium and program product, it is related to the technical field of ground surface settlement monitoring.Determine the data acquisition interval time of adjacent two InSAR settlement data in time series InSAR settlement data set, time coding is carried out to data acquisition interval time, obtain time interval matrix, time interval matrix and time series InSAR settlement data set are used to train ground surface settlement prediction model, obtain target model, target model is used to carry out ground surface settlement monitoring to target area to be monitored.By time coding to data acquisition interval time and using the time interval matrix and time series InSAR settlement data set obtained by coding to train ground surface settlement prediction model, to reduce the precision error brought by non-uniform time series data, improve the adaptability of target model to irregular sampling data, to improve the prediction accuracy of target model, finally accurately monitor ground surface settlement.
Owner:SHAANXI BEIDOU ENVIRONMENTAL INFORMATION IND CO LTD
Rope-driven flexible robotic arm for small-cavity surgery
The application discloses a rope-driven flexible mechanical arm for small-cavity surgery and relates to the technical field of flexible mechanical arms. The rope-driven flexible mechanical arm for small-cavity surgery comprises a handle mechanism, the front end of the handle mechanism is connected with a flexible mechanism, the flexible mechanism is arranged by skeleton assemblies, each skeleton assembly comprises two annular bone rings, and tube clamps are uniformly and equidistantly fixedly connected in the rings of each bone ring; the two bone rings of one skeleton assembly are connected with a first elastic support mechanism; the adjacent bone rings of two skeleton assemblies are connected with a second elastic support mechanism; the lower end surface of the bone ring close to the handle mechanism is fixedly connected with a connecting cylinder, a soft sleeve for fixing the connecting cylinder is arranged on the outer side of the skeleton assembly, and the front end surface of the soft sleeve is fixedly connected with a soft head; a pull rope mechanism for operating the flexible mechanism is arranged between the handle mechanism and the flexible mechanism; a cavity tube mechanism is arranged in the handle mechanism and the flexible mechanism; and the rope-driven flexible mechanical arm for small-cavity surgery improves the targeting of operation.
Owner:SUN YAT SEN UNIV
An automatic measuring method of a twisted and deformed blade
ActiveCN116295196BReduce processing difficultyRealize automatic measurementMeasurement devicesWind energy generationAviationAlgorithm
This invention relates to the field of blade measurement technology and discloses an automatic measurement method for tortuous and deformed blades. It aims to solve the problems of high labor costs, large measurement errors, low measurement efficiency, and scratch generation in existing methods. The solution mainly includes: positioning and clamping the blade to be measured on a corresponding fixture; obtaining the theoretical coordinate values of multiple theoretical measurement points along the vector direction of the blade; establishing a coordinate system based on a six-point iteration method; using a coordinate measuring machine to detect multiple measurement points on various cross-sections of the blade; for each cross-section, performing optimal fitting calculations based on the corresponding measured points and theoretical profiles; and, in the coordinate system after optimal fitting for each cross-section, detecting the blade according to the actual measurement points corresponding to each theoretical measurement point to obtain measured coordinate values, and determining the dimensions of the blade based on the measured coordinate values. This invention achieves rapid, scratch-free automatic measurement, reduces labor costs, and improves the reliability of dimensional measurement, making it particularly suitable for aero-engine blades.
Owner:STATE-OWNED SICHUAN WEST MASCH FACTORY
Miniature worm and gear rotating platform
ActiveCN224188009UChange rotational backlashAchieve multi-degree of freedom adjustmentStands/trestlesGearing detailsRotary stageStructural engineering
Owner:DONGGUAN C&K MECHATRONIX CO LTD
All-electrically-driven multifunctional shoemaking forming machine
ActiveCN224060276UEliminate dependenciesshort action timeDomestic articlesLubrication check valvesRotational axisHigh energy
Aiming at the problems of high energy consumption, low control precision and poor structural stability of the traditional hydraulic / pneumatic pressing equipment, the utility model discloses an all-electrically-driven multifunctional shoemaking forming machine, which adopts an all-electrically-driven design and realizes high efficiency, energy conservation and accurate pressing through cooperative control of an electric pressure supply device and a linear electric cylinder assembly. The equipment integrates two sets of shoe material pressing modules, an upper water pressing module is connected with a linkage push plate through a multi-layer connecting rod-guide rod composite transmission mechanism, the anti-offset capacity is enhanced through a connecting rod assembly with rotating shafts arranged alternately, and the friction performance of a kinematic pair is optimized in combination with a self-lubricating shaft sleeve and a separation ring; a variable pressure cavity and a sliding block adjusting mechanism are arranged in the electric pressure supply device, and 0-30 kg / cm < 2 > pressure control is achieved in cooperation with a replaceable rubber sheet (adaptive to vamp / sole forming). Compared with a traditional machine type, the energy consumption is reduced by more than 70%, the die assembly precision is improved to + / -0.05 mm, the noise is smaller than or equal to 65 dB, and the efficient, stable and environment-friendly requirements of the shoe material pressing process are met.
Owner:DONGGUAN TIANYUAN MASCH TECH CO LTD
一种等压可调配比多组分混料器及其使用方法
ActiveCN117482816BReduce precision errorImprove the efficiency of proportioning and mixing
Owner:SOUTHEAST UNIV +1
Drilling and tapping integrated equipment for shell casting part machining
PendingCN121848128AReduce hole circumferential deformationImprove processing qualityOther manufacturing equipments/toolsNumerical controlMachining process
The invention relates to the field of numerical control machining equipment, and particularly discloses drilling and tapping integrated equipment for shell casting part machining, which comprises a rack, a workbench is arranged on the rack, a drilling drill bit and a tapping drill bit are symmetrically arranged on the rack in a lifting manner, a shell is positioned between the drilling drill bit and the tapping drill bit, and a first clamping plate is arranged on the rack in a lifting manner; the first clamping plate is movably attached to the upper end face of the shell, the workbench is movably attached to the lower end face of the shell, a first main shaft and a second main shaft are symmetrically arranged on the rack in a lifting mode, and a first rotating head and a second rotating head are rotationally arranged on the first main shaft and the second main shaft correspondingly. The drilling drill bit and the tapping drill bit are in one-to-one correspondence with the first rotating head and the second rotating head, and the rack is provided with a chamfering assembly used for chamfering a shell hole and a scraping assembly used for removing burrs of the shell hole. The machining method has the effects that deformation of the periphery of the shell hole in the machining process is reduced, and the shell machining quality is improved.
Owner:XIANGYANG LIQIANG MASCH CO LTD