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43363 results about "Drill hole" patented technology

Method, system and device for monitoring multifunctional parameters of direct-current drilling machine

ActiveCN120387125AAutomatic controlData set
The invention discloses a method, a system and a device for monitoring multifunctional parameters of a direct-current drilling machine, and relates to the technical field of manufacturing of industrial automatic control system devices. The method, system and device for monitoring the multifunctional parameters of the direct-current drilling machine comprises the steps that S1, various data are collected and subjected to standardization and normalization processing, and a standardized working condition data set is constructed; s2, multi-dimensional disturbance characteristics are analyzed, and the stability level of a drilling system is quantified; s3, evaluating a dynamic evolution trend of a working condition, and updating a risk level, a response strategy and a monitoring priority; and S4, identifying an abnormal state based on the key disturbance value and the trend evolution value, and generating a monitoring report. The problems that an existing direct current drilling machine display device is insufficient in key working condition feature extraction capacity, deep understanding and trend analysis of the equipment operation state are difficult to support, and then the early warning timeliness and judgment accuracy of the abnormal state are limited are solved.
Owner:SHANGHAI CHENGXIANG ELECTROMECHANICAL EQUIP CO LTD

Soil layer detection drilling device

A soil layer detection drilling device includes a drilling cylinder, and a soil-sampling assembly is provided inside the drilling cylinder. When the soil is drilled, equipment is in a vertical state, a controller is turned on to control a rotary motor to rotate, and the drilling cylinder is driven to drill the soil with the cooperation of drive wheels and a drive belt. Four slide blocks are evenly distributed around an outer circumference of a sliding disk and are matingly connected with slide grooves provided on an inner wall of the drilling cylinder, so when the drilling cylinder rotates, the soil-sampling assembly also rotates. A conical head first in contact with the ground starts to drill the ground, then the drilling cylinder gradually drills into a soil layer, and the drilling cylinder is idled as the drilling cylinder arrives at a certain depth, to clear soil on auger blades.
Owner:POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD

Systems and methods for operating candle filters to recover glycols from drilling operations

Methods of operating candle filter systems for removing solids from MEG recovered from drilling fluids include passing an MEG rich stream to a candle filter system comprising a plurality of candle filter units in parallel, determining a concentration of TDS in the MEG rich stream, determining whether to operate the candle filter system in a low TDS mode or a high TDS mode based on the concentration of TDS the MEG rich stream, filtering the MEG rich stream in the plurality of candle filter units to produce a filtrate and a filter cake, determining to conduct a cleaning cycle of the candle filter units based on a pressure differential, and conducting a cleaning cycle to remove the filter cake from the outer surfaces of the filter candles. The cleaning cycle is modified to improve removal of solids from the filter candles of the candle filter units.
Owner:SAUDI ARABIAN OIL CO

Surface pressurized punching device for anode plate machining

The present invention belongs to the technical field of machining and punching, and in particular relates to a surface pressurized punching device for anode plate machining. The surface pressurized punching device comprises a workbench of a table structure, a machine unit mounted on one side of the workbench, and a rack welded to the table top of the workbench, wherein an operation platform is fastened to the table top of the workbench and inside the rack by means of bolts, and clamping plates which are oppositely arranged are slidably mounted on two sides of the surface of the operation platform; and a hydraulic cylinder is mounted at the center of the surface of the rack, and an output shaft of the hydraulic cylinder running into the rack is fixedly connected to a drill rod by means of a coupler. By means of providing a reaming assembly, an electric motor B is controlled by an external power supply to operate while the hydraulic cylinder drives the drill rod to move, such that the electric motor B drives, by means of a gear A and a chain, a gear B to rotate synchronously while the electric motor B moves with the drill rod by means of an outer frame, thereby driving the drill rod to rotate. Thus, the surface of the drill rod can rotationally grind and finish holes in an anode plate while the drill rod performs drilling, thereby reducing burrs.
Owner:POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD

Tunnel deep-buried drainage ditch rapid blasting excavation method based on vertical drilling

PendingCN120627827ABlastingDetonatorGrating
The invention discloses a tunnel deep-buried drainage ditch rapid blasting excavation method based on vertical drilling, which comprises the following steps: step 1, detecting the geology in front of a tunnel by using vertical drilling coring, geological radar and TSP seismic wave technology, and constructing a three-dimensional model; 2, generating an asymmetric hole net layout based on a geological model and AI, and setting a drilling-free vibration isolation belt; the design of dense inside and sparse outside is adopted, and vibration propagation is blocked; thirdly, a three-stage air spacer is arranged at the bottom of the blast hole, segmented charging is implemented, the explosive energy release time is prolonged, and the single-segment explosive quantity peak value is reduced; fourthly, an electronic detonator is adopted for millisecond detonation, and peak vibration is weakened through the waveform superposition offset effect; 5, arranging fiber grating sensors in the tunnel, collecting data in real time and transmitting the data to the cloud AI platform; dynamically adjusting parameters based on the monitoring data; and 6, evaluating a blasting effect through a three-dimensional laser scanner, generating an evaluation report in combination with data, updating a BIM model database, and continuously optimizing an AI algorithm.
Owner:CHINA RAILWAY NO 5 ENGINEERING GROUP CO LTD +2

Measuring device suitable for wire saw rock cutting drilling positioning and control method

The invention provides a measuring device suitable for wire saw rock cutting drilling positioning and a control method, and relates to the field of rock cutting construction. The plane position of a drilling machine and three-dimensional space attitude data of a drilling rod are obtained in real time through a GNSS receiver module arranged on drilling machine equipment, and the angle and the position of the drilling rod are accurately controlled through real-time monitoring of a multi-sensor module; the data processing module verifies and analyzes the received data, transmits an analysis result to the deviation judgment module and calculates the deviation value of the data, meanwhile, the HMI control module facilitates an operator to monitor the equipment state in real time, and when the deviation judgment module confirms that the deviation of all the data is within a preset threshold value, the HMI control module sends the data to the data processing module. The HMI module indicates the drilling machine to start drilling operation; the method is suitable for various rock cutting and drilling tasks, particularly in the environment needing high-precision positioning and drilling control, the accuracy and reliability of data are improved, and therefore the drilling precision and stability are improved.
Owner:CHINA GEZHOUBA GROUP CO LTD

PCB forming detection method based on hole site scatter diagram and SPC analysis

The invention relates to the technical field of printed circuit board manufacturing and quality detection, in particular to a PCB forming detection method based on a hole site scatter diagram and SPC analysis, and the method comprises the steps: collecting the actual hole site data of a PCB substrate through an optical scanner or a laser measurement device, generating a scatter diagram containing coordinates, aperture and tolerance, and carrying out the detection of the hole site scatter diagram; an abnormal region is identified by using an improved density clustering algorithm; performing multi-dimensional analysis on the scatter diagram based on an SPC model, extracting characteristic parameters such as hole site density deviation, constructing a dynamic control limit, and calculating a CPK to judge a processing state; and when the CPK is lower than a threshold value, optimization instructions such as drilling path correction and drill bit wear compensation are generated and fed back to the equipment through the anti-saturation fuzzy PID controller to realize closed-loop control. According to the method, the hole site machining quality can be accurately detected, the machining parameters are adaptively adjusted, and the PCB forming precision and the production stability are effectively improved.
Owner:FUJIAN FUQIANG PRECISION PRINTED CIRCUIT BOARD CO LTD

Multi-source collaborative advanced geological exploration method based on TBM construction

The invention discloses a multi-source collaborative advanced geological exploration method based on TBM construction, and belongs to the technical field of tunnel engineering geological exploration. A three-dimensional geological model is constructed through multi-scale collaborative operation of directional long exploration drilling, branch short exploration drilling and in-hole transient electromagnetic detection; the directional long exploration adopts a secondary drilling structure and a screw motor directional drilling technology to realize accurate control of a deep stratum, the branch short exploration realizes dynamic and rapid verification through a TBM integrated drilling machine, meanwhile, in-hole transient electromagnetic exploration adopts three-component measurement and an intelligent inversion algorithm to fill the blank of geological information between drill holes, and by means of mutual data correction of the three methods, the detection accuracy is improved. A three-in-one detection system of drilling, geophysical prospecting and intelligent analysis is formed, and then accurate advanced prediction is achieved, so that the problems that a traditional single detection technology is low in precision and insufficient in coverage range are effectively solved, the water inrush risk is remarkably reduced, construction safety is guaranteed, and the method is effectively suitable for deep tunnel TBM safety construction.
Owner:CHINA COAL TUNNEL ENG CO LTD +1

Anti-collapse comprehensive treatment construction process for tunnel crossing karst development area

The invention relates to the technical field of tunnel engineering, in particular to an anti-collapse comprehensive treatment construction process for a tunnel to pass through a karst development area, which comprises the following steps: S1, early-stage exploration and planning: understanding a geological structure, karst development condition and underground water distribution along the tunnel in detail through drilling exploration, geological radar and seismic wave exploration; according to the anti-collapse comprehensive treatment construction process for the tunnel crossing the karst development area, the construction strategy is adjusted according to the actual geological condition, geological risks are treated more accurately, the construction progress is accelerated by adopting modern technologies and equipment such as geological radars, accidental interruption is reduced, comprehensive treatment measures are accurately controlled, and the construction efficiency is improved. The safety of the construction process is greatly improved, the influence on the surrounding environment is reduced, pollution is reduced by using environment-friendly materials and technologies, meanwhile, novel supporting materials and design are adopted in the construction technology, the novel supporting materials comprise a reinforcing mesh, anchor rods and sprayed concrete, immediate and lasting supporting is provided, and rock mass loosening and collapse are prevented.
Owner:ANHUI HIGHWAY BRIDGE ENG CO LTD

High-precision drilling control method and system for multi-layer PCB

The invention discloses a high-precision drilling control method and system for a multi-layer PCB, and relates to the technical field of intelligent control. The method comprises the following steps: scanning and analyzing to obtain layered material characteristics and structural size information of a multi-layer PCB, and carrying out clamping fixation and positioning hole processing on the multi-layer PCB to obtain a PCB positioning hole; a drilling machining three-dimensional coordinate axis is constructed; a PCB drilling strategy space is constructed, the PCB drilling strategy space is adopted to conduct drilling analysis on the layered material characteristics and the structure size information in sequence according to the PCB drilling machining requirement, and layered drilling strategy parameters are obtained; and the layered drilling strategy parameters are mapped to a drilling processing three-dimensional coordinate axis for space route fusion, layered drilling processing parameters are determined, and high-precision drilling and quality detection closed-loop control are executed on the multi-layer PCB. The technical problem that in the prior art, the positioning precision is low in the drilling process of the multi-layer PCB is solved, and the technical effect of improving the drilling machining precision of the multi-layer PCB is achieved.
Owner:SHENZHEN JIA YANG CENTURY SCI & TECH CO LTD

Using artificial intelligence methods to exploit well logging data

A method for constructing a high fidelity logging while drilling (LWD) log that includes obtaining a temporal well depth log and a plurality of temporal LWD logs from a drilling operation. The method further includes obtaining a temporal record of operational drilling parameters from the drilling operation. The method further includes determining, using a first machine-learning model, a temporal history of the drilling operation and constructing, using the temporal well depth log and the plurality of temporal LWD logs, a plurality of temporal property logs at each depth in the plurality of depths. The method further includes processing the plurality of temporal property logs with, at least, a second machine-learning model to form a plurality of corrected temporal property logs and aggregating the plurality of corrected temporal property logs to form a plurality of high fidelity LWD logs.
Owner:SAUDI ARABIAN OIL CO

Method of intelligent prediction of coal stress and different diameters pressure relief based on optimization neural network

A method of intelligent prediction of coal stress and different diameters pressure relief based on optimization neural network collects the drilling parameters while drilling the pressure-relief boreholes at one working face and to obtain the stress values using the accompanying boreholes of the pressure-relief boreholes to construct the prediction model; in this way, the prediction model is applied to predict the value of mining stress when drilling pressure-relief borehole in other working faces; according to the prediction results, the distribution law of mining stress is analyzed, and then the reaming position, length of reaming section and hole diameter of the pressure relief borehole are determined; the present invention monitors the pressure-relief borehole construction process of accompanying borehole parameters at the same time, monitoring the adjacent accompanying borehole corresponding to the depth of the drilling borehole coal stress value.
Owner:SHANDONG UNIV OF SCI & TECH

Downhole large-diameter drilling apparatus and construction method

PCT designated stage expiredWO2025035925A1SurveyDrilling rodsStructural engineeringDrilling system
A downhole large-diameter drilling apparatus, comprising a large-diameter drilling-with-casing drill, a large-diameter drilling-with-casing guide drilling system, a collapse body metal detection and demolition system, and a self-moving multifunctional rescue operation cabin, wherein the large-diameter drilling-with-casing drill is configured to efficiently construct a large-diameter horizontal hole to serve as a rescue passage; the large-diameter drilling-with-casing guide drilling system uses a first-stage hole protection mode, a second-stage hole protection mode or a three-stage hole protection mode on the basis of the length of a collapse body and the stratum; the collapse body metal detection and demolition system can perform fine detection and rapid cutting on metal components in the collapse body; and the self-moving multifunctional rescue operation cabin can be configured to assist in obstacle removal at the bottom of a rescue hole while ensuring safety improvement of personnel in the cabin, thereby improving the construction efficiency of rescue drilling.
Owner:CCTEG XIAN RES INST (GRP) CO LTD

Power delivery system for pulsed power drilling

Some implementations include a system comprising at least one coiled tubing extending from a surface of a wellbore to a bottomhole assembly (BHA); a power cable to be housed either inside or outside the at least one coiled tubing and to electrically couple a power supply at the surface of the wellbore with the BHA. The BHA comprises at least one capacitor to store electrical power received from the power supply via the power cable housed in the at least one coiled tubing; and at least one electrode electrically coupled to the at least one capacitor to receive the stored electrical power from the at least one capacitor and to periodically emit pulsed power discharges into a subsurface formation to drill the wellbore based on the stored electrical power received from the at least one capacitor.
Owner:HALLIBURTON ENERGY SERVICES INC

Underground directional drilling track control method for coal mining

The invention relates to the technical field of directional drilling track control, and discloses a coal mining underground directional drilling track control method and system, and the method comprises the steps: carrying out the fusion track analysis of a drilling machine based on sensor data, drilling parameters and pre-obtained geological hardness parameters, and obtaining a reference track of the drilling machine, a sensor, an azimuth angle sensor and a bit pressure sensor are used for synchronously collecting drill bit attitude data of a drilling machine to generate a real-time track of the drilling machine, then track offset calculation is carried out to obtain inclination angle deviation and azimuth angle deviation, and dynamic gain adjustment analysis is carried out on the drilling machine to obtain adjustment parameters of the drilling machine. And finally, the drill bit posture of the drilling machine is adjusted based on the adjusting parameters. According to the method, the directional control accuracy of the underground drilling track can be improved.
Owner:SHANDONG XIANGDE ELECTROMECHANICAL

Coal mine area gas control and safety guarantee method and system under complex geological conditions

The invention relates to the technical field of data processing, and discloses a coal mine area gas control and safety guarantee method and system under complex geological conditions. The method comprises the steps that geophysical prospecting, drilling and logging exploration are conducted on a coal mine area, and geological parameters are obtained; performing statistical analysis on the data, and constructing a three-dimensional gas model; identifying a high-gas area based on the model, and arranging a directional drilling network; differential extraction and anti-reflection measures are implemented according to the drilling network; fusing extraction and sensor data, and predicting a gas change trend by using a neural network; and performing intelligent diagnosis based on the early warning matrix to form a disposal scheme. Under the complex geological condition, the gas distribution rule is accurately mastered, scientific arrangement of directional drilling and optimization design of differential extraction parameters are achieved, meanwhile, a gas early warning decision support system based on artificial intelligence is established, the accuracy of gas treatment and the timeliness of early warning are improved, and therefore safe production of a coal mine is guaranteed.
Owner:GUIZHOU FAER COAL IND CO LTD

BIM (Building Information Modeling)-based open-air goaf charging safety risk early warning method and system

The invention relates to the field of safety risk early warning, in particular to a BIM (Building Information Modeling)-based open-air goaf charging safety risk early warning method and a BIM-based open-air goaf charging safety risk early warning system. A three-dimensional BIM geologic model containing rock mass hardness data, joint density and fracture distribution data is constructed through unmanned aerial vehicle scanning and rock core sampling; determining a minimum effective explosive loading amount meeting a preset crushing lumpiness mean value in the three-dimensional BIM geological model, performing dynamic simulation through the three-dimensional BIM geological model to obtain a simulation result, and outputting a final explosive loading amount when the simulation result meets a preset safety constraint condition; and generating charge parameters according to the final charge amount, binding the charge parameters with space coordinates of the three-dimensional BIM geologic model, and outputting an early warning area through a visual interface. By determining the optimal explosive loading amount and optimizing the blast hole layout and the detonating sequence, the explosive loading safety risk is effectively reduced while the blasting effect is guaranteed.
Owner:ANSTEEL MINING BLASTING CO LTD

Method for evaluating full-life-cycle efficiency of high-negative-pressure gas extraction drill hole

The invention provides a high-negative-pressure gas extraction drill hole full-life-cycle efficiency evaluation method, and belongs to the technical field of mineral exploitation. A ground stress distribution model is established through microseism monitoring to determine drill hole arrangement parameters; a distributed optical fiber sensing system and a multi-parameter gas flow meter are used for monitoring the stress change around a drill hole and gas extraction data in real time, the coal fracture development degree is obtained in combination with sound wave testing, and all the data are input into a physical numerical value coupling model to calculate a permeability dynamic evolution curve. Establishing a permeability influence coefficient matrix and determining a key parameter weight, constructing an evaluation index system including the extraction amount, the permeability change rate, the drilling life and the coverage range, and performing multi-objective optimization configuration by applying a Pareto optimal solution theory. The technical problem that full-life-cycle dynamic monitoring and comprehensive efficiency evaluation of the high-negative-pressure gas extraction drill hole are lacked at present is solved.
Owner:KUNMING COAL DESIGN & RES INST CO LTD

Coal mine underground roadway surrounding rock reinforcement grouting system

The invention provides a coal mine underground roadway surrounding rock reinforcement grouting system, and relates to the technical field of coal mining. Comprising a stirring barrel, a grouting pump, a moving frame, a grouting pipe mechanism, a steering mechanism, a grouting pipe length adjusting mechanism, a plugging mechanism and a power mechanism, and an input opening of the grouting pump communicates with the stirring barrel; the grouting pump and the stirring barrel are both arranged on the moving frame; the grouting pipe mechanism communicates with an output port of the grouting pump, and the grouting pipe mechanism is used for grouting the drill hole; the steering mechanism is connected with the grouting pipe mechanism and used for adjusting the angle of the grouting pipe mechanism so that the grouting pipe mechanism can be aligned with the drilled hole. The grouting pipe length adjusting mechanism is connected with the steering mechanism and the grouting pipe mechanism, and the grouting pipe length adjusting mechanism is used for adjusting the length of the grouting pipe mechanism; the periphery of the grouting pipe mechanism is sleeved with the plugging mechanism, and the plugging mechanism is used for plugging a drill hole when grouting is conducted on the interior of the drill hole through the grouting pipe mechanism; and the power mechanism is connected with the grouting pipe length adjusting mechanism.
Owner:TIANDI SCI & TECH CO LTD +1

Multi-layer circuit board drilling method and device based on machine vision

The invention relates to the technical field of PCB processing, and discloses a multi-layer circuit board drilling method and device based on machine vision, and the method comprises the steps: obtaining a multi-layer circuit board image; preprocessing the multi-layer circuit board image to obtain a to-be-identified image; inputting the to-be-recognized image into a pre-trained defect detection model to obtain defect position data; carrying out point location identification and matching on the to-be-identified image to obtain an optimal hole location coordinate, and carrying out correction according to the optimal hole location coordinate to obtain hole location information data; according to the hole site information data and the defect position data, nodes are constructed respectively, distance calculation is carried out, and a hole site node graph is generated; according to the hole site node graph, performing path planning by applying an ant colony algorithm, and performing iterative search to obtain an optimal drilling path; and drilling the multilayer circuit board according to the optimal drilling path. The method has the following effect that the drilling efficiency of the multilayer circuit board can be improved.
Owner:SHENZHEN JINSHENGDA ELECTRONIC TECH CO LTD

Non-blasting tunnel boring machine and boring method

The disclosure relates to the technical field of tunnel excavation, in particular to a non-blasting tunnel boring machine and a tunneling method. The tunneling machine comprises a vehicle-mounted device (1), a rotational driving device (2), a translation device (40), a working disc (3), a foundation trench excavation device (4), a drilling and splitting device (5), a hazard removal device (50), a dust suppression device (6) and a material feeding device (7). The rotational driving device (2) is arranged on the vehicle-mounted device (1), the working disc (3) is connected with the rotational driving device (2), the rotational driving device (2) drives the working disc (3) to rotate around a center of the working disc, the foundation trench excavation device (4) is arranged on the working disc (3), the drilling and splitting device (5) comprises a drilling machine (51) and a rock splitter (52) both arranged on the working disc (3), the drilling machine (51) is suitable for drilling a hole in a tunnel face in an annular crack arrest groove, the rock splitter (52) is suitable for splitting the tunnel face, the hazard removal device (50) is arranged on the working disc (3), the dust suppression device (6) is arranged on the vehicle-mounted device (1), and the material feeding device (7) is used for receiving and conveying materials dropped during excavation.
Owner:CHINA THREE GORGES CORPORATION +1

External bolt prestress tensioning device suitable for tunnel segment joint

The invention relates to the field of building structure reinforcement, in particular to an external bolt prestress tensioning device suitable for a tunnel segment joint. Comprising a fixed end mechanism, a tensioning end mechanism, a cambered surface self-adaptive bolt, a prestress bolt and a locking nut, the fixed end mechanism and the tensioning end mechanism each comprise a horizontal supporting plate, and the bottoms of the ends, away from each other, of the two horizontal supporting plates are fixedly connected with vertical supporting plates correspondingly; a screw rod part of the prestress bolt sequentially penetrates through a through hole in the vertical supporting plate of the fixing end mechanism and a through hole in the vertical supporting plate of the tensioning end mechanism and is provided with a locking nut, the tops of the ends, away from each other, of the two horizontal supporting plates are fixedly connected with lug plates correspondingly, and fixing holes are formed in the two lug plates correspondingly. The device provided by the invention is completely fixed on the surface of the to-be-reinforced structure in a mechanical contact mode, destructive drilling on the structure is not needed, and damage to the interior of the structure is avoided.
Owner:FUJIAN UNIV OF TECH

Real-time dynamic monitoring system for horizontal directional drilling track

The invention relates to the technical field of horizontal directional drilling monitoring, and particularly discloses a horizontal directional drilling track real-time dynamic monitoring system which comprises a drilling data acquisition module, a self-adaptive data transmission module, a geological layer analysis module, a three-dimensional track monitoring module and an automatic control module. According to the invention, the geological layer analysis module applies an advanced intelligent analysis technology to carry out deep excavation and accurate identification on dynamic data, and the converted drilling data is further converted into a three-dimensional trajectory diagram, so that an operator of a ground control center can master the full view of the drilling operation in real time, the visual monitoring of the operation process is realized, and the working efficiency is improved. The automatic control module fuses a deep learning algorithm, can intelligently identify route deviation or abnormal conditions in the three-dimensional trajectory diagram, quickly generates a visual adjustment instruction, can find and correct potential problems in the first time, and effectively avoids operation delay or resource waste caused by factors such as trajectory deviation.
Owner:ZHEJIANG ELECTRIC POWER CONSTR CO LTD

Upper actuator of drilling and riveting machine

The invention discloses an upper actuator of a drilling and riveting machine. The two ends of the station rotating mechanism are rotationally connected to the A-axis driving end and the A-axis driven end correspondingly. The tool magazine mechanism and the pressure foot mechanism are both arranged on the side, away from the cross beam, of the station rotating mechanism. A drilling station, a gluing station, a pin inserting station, a riveting station and a milling station are arranged in the station rotating mechanism in the circumferential direction, all the stations are configured to rotate around the central axis of the station rotating mechanism and stop after rotating to the selected station, and the selected station moves in the height direction of the station rotating mechanism and extends into the pressure foot mechanism. Drilling, gluing, rivet inserting, riveting and milling of the skin are achieved; and the C-axis driving end and the A-axis driving end are linked, so that the axis of the pressure foot mechanism and the normal of the skin surface are coaxial. Therefore, corresponding drilling, gluing, rivet inserting, riveting and milling functions can be automatically executed, the machining efficiency is improved, and the product quality stability is guaranteed.
Owner:XIAN XINGHANG AVIATION MFG CO LTD

Arrangement and mining method of negative carbon coplanar filling system

The invention discloses a negative carbon coplanar filling system arrangement and mining method, which comprises the following steps of: stoping by adopting a rear gangue high-porosity filling coal mining technology, retaining a stoping roadway on one side of a filling section by utilizing a gob-side entry retaining technology, and reinforcing by adopting a roadway-side support body; the mining roadway serves as a CO2 filling roadway of the working face and a mining roadway on one side of an adjacent filling working face; when the working face advances by 300-500 m, the working face is separated from a rear goaf through a sealing wall, and a sealed storage space is formed; then, drill holes are formed in the goaf through the CO2 injection and filling roadway, and CO2 injection and filling pipelines are arranged in the mining roadway and the drill holes; and CO2 is injected into the goaf by the CO2 injection pump through the CO2 injection pipeline, and after injection is completed, CO2 injection in the next closed space is started until injection of the working face is completed. The system is simple in arrangement, CO2 filling and coal mining filling do not interfere with each other, operation is flexible, the sealing performance of the sealing space is good, the dual purposes of solid waste disposal and CO2 sealing are achieved, and green mining of coal resources is achieved.
Owner:CHINA UNIV OF MINING & TECH

Construction method of cast-in-situ bored pile in karst development area

The invention relates to the technical field of civil engineering, in particular to a karst development area cast-in-situ bored pile construction method which comprises the following steps: based on construction position information, collecting electromagnetic wave data of a target area at multiple angles and depths, and recording rock layer, karst cave and crack data to obtain geological data of the target area. According to the method, a data basis is provided for geological three-dimensional model construction by utilizing electromagnetic wave data and identifying a rock layer, a karst cave and a crack, the prediction precision of the model is improved by simulating the response of karst, a fault and a soft soil layer to a structure, and the prediction accuracy of the model is improved by combining the evaluation of chemical erosion and physical erosion effects of a target karst development area on the cast-in-place pile. The long-term influence of the environment on the pouring material is predicted, the stability and safety of the structure are improved, the long-term sustainability of a target engineering project under the karst complex geological condition is ensured, and the scientificity and efficiency of construction planning are improved by combining drilling position analysis and construction path planning.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD +2

Drilling machine with chipping cleaning function for machining lower ball head of automobile

The invention relates to the technical field of drilling machines, and provides an automobile lower ball head machining drilling machine with a chipping cleaning function, which comprises a machine body, a workbench, a main shaft, a drill bit and a sprayer, and further comprises a protection mechanism, a filtering mechanism, a purging pipe and a dumping mechanism, the protection mechanism is used for protecting a drilling position, and the protection mechanism comprises a protection barrel and a sealing cover; the protective barrel is arranged on the machine body, the workbench is arranged in the protective barrel, the sealing cover is arranged on the main shaft, the filtering mechanism is used for filtering metal chippings and comprises a liquid collecting hopper and a filter screen, the liquid collecting hopper is arranged below the protective barrel, the filter screen is rotatably arranged in the liquid collecting hopper, and the blowing pipe is arranged on the sealing cover. And the pouring mechanism is used for pouring the liquid collecting hopper and pouring out the metal chippings in the filter screen, and by means of the technical scheme, the problem that in the prior art, cutting liquid is mixed with cutting chippings, so that subsequent drilling machining is affected is solved.
Owner:SHAOYANG ZHENGDE MASCH TECH CO LTD

Drilling image intelligent pickup method and system based on deep learning

The invention relates to the technical field of artificial intelligence and geophysical prospecting, and discloses a drilling image intelligent pickup method and system based on deep learning. The method comprises the following steps: firstly, making a data set of a drilling image by using drilling data collected by a drilling probe, and automatically picking up different types of structural surfaces such as rock vein filling and cracks on a hole wall image by using a multi-classification task constructed by an instance segmentation module in a deep learning network model YOLOv8; according to a polynomial fitting formula, mask coordinates obtained after instance segmentation are subjected to fitting to obtain a sine curve of a structural plane, extreme points of the curve after fitting are calculated through mathematical transformation, spatial transformation and other modes, corresponding tendencies, dip angles and other occurrence of the structural plane are obtained, and finally a drilled hole image obtained after automatic analysis and drawing of an algorithm model is output.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Drilling equipment for automobile brake disc production

The invention relates to the technical field of drilling equipment, in particular to drilling equipment for automobile brake disc production, which comprises a support, an air cylinder and a mounting table, and an electric control drill bit is arranged on the bottom surface of the mounting table. The second rotating disc slides in a second abutting groove through a second abutting block fixed to the inner side of the second rotating disc when moving downwards along with the first rotating disc, stable rotation of the second rotating disc is guaranteed, the second rotating disc and the first rotating disc rotate coaxially, a second arc-shaped groove is formed in the surface of the second rotating disc, and the second arc-shaped groove is matched with the second arc-shaped groove. The circular block at the bottom of the positioning block close to the center of the connecting disc is inserted into the arc-shaped groove II. When the second rotating disc rotates, the second arc-shaped grooves push the positioning blocks to move along the sliding grooves so as to adapt to the inner diameter size of the brake disc, and therefore multi-point positioning can be conducted on the inner diameter and the outer diameter of the brake disc at the same time, and the clamping stability is improved.
Owner:LONGKOU GUOTAI HUIRONG MASCH CO LTD

Intelligent control method for construction and drilling parameters of bored pile in cobblestone stratum

The invention provides a cobblestone stratum bored pile construction and drilling parameter intelligent control method, and relates to the technical field of artificial intelligence and bored pile construction, and the method comprises the following steps: arranging a sound wave emission array at the end part of a drill bit to collect cobblestone distribution information, identifying a weak connecting band as a passable area, calculating an optimal obstacle avoidance track, and setting a posture control point; and drill bit displacement, slurry injection and drill rod deformation parameters are adjusted, so that the drilling tool can intelligently pass along the obstacle avoidance track. Large cobblestones can be effectively avoided, the drilling resistance is reduced, the drilling efficiency is improved, and equipment abrasion is reduced.
Owner:CHINA ENERGY CO LTD