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186 results about "Deep hole" patented technology

A linear cutting continuous machining method for large-diameter parallel group holes of a seat body

PendingCN122442305AMachine buildingWire cutting
The application discloses a kind of linear cutting continuous processing methods of seat body large aperture parallel group hole, belong to mechanical manufacturing technical field.This method is first with seat body A face as reference, planing, planing seat body shape and concave surface to drawing size;Again, workpiece is once clamped and aligned, and linear cutting molybdenum wire is used along preset trajectory to continuously cut, and all large aperture through hole is simultaneously processed, and 45° chamfer bevel is reserved at cutting place;Finally, intermittent welding is used to cutting seam, and workpiece temperature is strictly controlled not to exceed 80 DEG C to prevent thermal deformation, and after welding, weld is ground flat to make surface flush with concave surface.The application is characterized by linear cutting without mechanical cutting force, solves the problem that tool is easily appeared in traditional boring machine processing, through hole taper is big, parallelism is poor, effectively guarantees the size and shape accuracy of through hole.Workpiece is only single clamping, and it is free from dependence on high-skilled operators, processing efficiency and product consistency are significantly improved, and it is suitable for batch processing of large-size seat body parallel deep hole of 45 steel.
Owner:GANSU HAILIN ZHONGKE SCI & TECH

Deep hole milling cutter with chip removal structure

PendingCN122352958AMilling cutterAir blower
This invention discloses a deep-hole machining carbide end mill with a chip removal structure, applicable to the field of end mill technology. The invention uses an air blower at the bottom of the end mill component to blow outwards high-pressure gas, effectively reducing the impact of chips on the turning capability of the end mill component. A chip removal guide plate guides the high-pressure airflow, causing the high-pressure airflow to carry the turning chips upwards along the outer surface of the guide plate. Finally, the high-pressure airflow concentrates at the chip riser, increasing the airflow force and effectively increasing the blowing height of the turning chips, allowing them to exit the deep hole. Larger turning chips are retained on the inner surface of the chip removal guide plate, effectively preventing them from blocking the upward flow of high-pressure airflow and providing a stable retention environment for larger chips, thus effectively reducing the impact of larger turning chips on the drilling capability of the end mill.
Owner:CHENGDU LIANXIANG NEW MATERIAL CO LTD

Deep hole static fracturing and blasting combined mining dilution control method

The method of deep hole static fracturing combined with blasting for recovery and dilution control is as follows: the surrounding fracturing holes are arranged in the edge area of the two-step stope adjacent to the one-step filling body, the blasting deep holes are concentratedly arranged in the core area of the ore body in the middle of the stope, the blasting deep holes and the auxiliary blasting holes are arranged in parallel, the auxiliary vibration hole blasting auxiliary hole is arranged in the middle, the joint operation ore falling process strictly follows the order of “first static fracturing and then sublevel blasting”, the precise partition of blasting load and fracturing weakening is realized, the direct damage of blasting vibration to the filling body is maximally isolated, and there are six process steps and conditions, which can solve the technical problems of high ore dilution rate caused by the mixing of filling body and ore pile due to insufficient filling body strength or complex construction in the recovery process of existing two-step stope, and can also consider safety, process simplification and dilution control.
Owner:ZIJIN MINING GROUP CO LTD +1

A kind of thin-walled deep hole outer thread screw rod processing clamp device and processing method

The present application provides a kind of thin-walled deep hole outer thread screw rod processing clamp device and processing method, the clamp device includes clamp assembly, clamp assembly includes first clamping end cap and second clamping end cap, first clamping end cap and second clamping end cap are connected with the both ends of screw rod sample respectively, first clamping end cap includes the cooling pipeline passing through in screw rod sample inside, cooling pipeline is opened with multiple face-to-face screw rod sample inner wall's jet. The clamp device can process the screw rod sample of large stroke thin-walled deep hole, and clamp assembly can be installed on the support table assembly in prior art, can improve adaptability and universality, reduce the production difficulty of screw rod sample, the inner wall of screw rod sample can be temperature controlled by cooling pipeline to ensure cooling efficiency offset the influence of thin-walled outer surface heat production, accurately inhibit thin-walled thermal deformation, to avoid screw rod sample to produce thermal deformation, ensure the consistency of the diameter of shaped product, improve product quality, reduce processing difficulty.
Owner:CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD +1

Ultra-long tool support frame for high-precision machine tool

ActiveCN117943836BMachine toolMachining
The application discloses a kind of ultra-long knife support frame of high-precision machine tool, including support sleeve, processing long cutter, cutter support frame and support frame driving device, support sleeve is rotatably arranged on the side of machine tool auxiliary main shaft along the length direction of machine tool auxiliary main shaft, processing long cutter is located on the same side of machine tool auxiliary main shaft with support sleeve, processing long cutter is located at the end away from machine tool positive main shaft, the processing long cutter is used to process deep hole in the end of workpiece inserted into support sleeve, cutter support frame is arranged on machine tool auxiliary main shaft, and the support frame driving device is installed on machine tool auxiliary main shaft, for driving cutter support frame moves along the length direction of machine tool auxiliary main shaft core shaft.The present application can directly process deep hole on workpiece by machine tool, so that machine tool completes the machining of workpiece as a whole by clamping workpiece once, support sleeve is used to support workpiece, cutter support frame is used to support processing long cutter, the swing of workpiece and processing long cutter is smaller during machining, and the precision of workpiece is improved.
Owner:NANJING JIANKE MACHINERY

A device for embedding a borehole pressure meter in a borehole

ActiveCN224550094UFilter mediaFilter material
The utility model relates to a kind of hole inside upward hole osmotic pressure gauge burying device, including the filter protection component, expandable fixed component, connection adjusting piece and detachable conveying rod connected in turn.Filter protection component contains double-layer porous sleeve: inner sleeve contains osmotic pressure gauge and fills filter medium, and outer sleeve is filled with support filter material between inner sleeve;Expandable fixed component includes elastic sealing member, reset member and support framework, and framework is provided with wire shaft direction passage and connection structure;One end of connection adjusting piece cooperates framework connection structure, and the other end is provided with transmission cooperation part;Conveying rod one end is provided with matching drive part, and the other end is provided with extension connection structure.The utility model realizes upward hole stable placement by expandable fixed component, double-layer sleeve inverse filtration structure prevents silting up and protects osmotic pressure gauge, and detachable design supports repair and reuse, adapts to deep hole and short-term / long-term monitoring demand, and provides reliable technical means for underground engineering osmotic pressure monitoring.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION +2

Deep hole drill for machining intermediate shaft of automobile reduction gearbox

The utility model belongs to the deep hole drilling technical field especially, it is a kind of deep hole drill for machining middle axle of automobile reduction gearbox, to the existing in use, since the heat generated by drill head and hole wall friction, it is inconvenient to carry out heat dissipation, leading to drill head overheating influence processing quality problem, present and propose following scheme, including drill fixed handle, the one end of drill fixed handle is connected with drill head body, the other end of drill fixed handle is connected with water inlet pipe, the inside of drill fixed handle is equipped with cooling mechanism for cooling drill head, the one side of cooling mechanism is equipped with quick release mechanism for the disassembly of drill head. The utility model is sprayed by the water injection hole of drill head body terminal, drill head body is in hole, so that the water that sprays will pass through the chip flute on drill head body and be discharged from inside to outside, to further cool drill head body, and can flush out the impurity adhered to the outer surface of drill head body.
Owner:CHANGZHOU JUNMENG TOOL CO LTD

An efficient mining method for irregular and difficult-to-mine ore bodies based on exploration side-channels control and remote ore extraction

The application discloses a kind of based on prospecting auxiliary river control and remote control ore drawing irregular hard-to-mine ore body high-efficiency mining method, it is applicable to the underground metal mine irregular hard-to-mine ore body stoping of inclination 10~60°, thickness 6~15m.This method is first based on ore body inclination difference design stope height, then in turn implement exploration and mining integrated preparation control ore, full-face collaborative rock drilling control lean, millisecond accurate segmented blasting, phased man-machine isolation remote control ore drawing and goaf filling;Through 2 prospecting auxiliary rivers, the ore body control accuracy is improved to 25m, combined with deep and shallow hole full-face hole arrangement, local charging, digital detonator accurate initiation, with conventional shovel-truck main ore drawing + remote control shovel-truck finishing ore drawing.The application breaks the industry technical prejudice that irregular thin ore body cannot adopt single segmented deep hole concentrated caving, realizes mining loss and dilution double low control, whole man-machine isolation ensures operation safety, while greatly reducing mining and cutting engineering quantity and stoping cycle, reduces comprehensive cost, process adaptability is strong, engineering popularization value is remarkable.
Owner:HUBEI SANXIN GOLD & COPPER CO LTD

Side clamping type tool holder for shockproof deep hole milling

PendingCN122299033AMilling cutterScrew thread
This invention relates to the field of milling cutter holder technology, and more particularly to a shock-resistant, side-locked milling cutter holder for deep hole milling. It includes a cutter holder body and a lower end cap, which are detachably connected. A connecting stud is provided at the bottom of the cutter holder body. Locking screw holes are provided on both sides of the lower end cap, with locking bolts for fixing inside the holes. Multiple guide pins are inserted into the bottom of the lower end cap, slidably connected to it, and a spring is provided at the end of each guide pin inside the lower end cap. A support ring is provided below the lower end cap, and the bottom ends of all guide pins are fixed to the support ring. Four adapter blocks are provided on the inner wall of the support ring. This device improves the strength of the connection between the milling cutter and the cutter holder body by connecting the milling cutter to the cutter holder body through a threaded connection. Simultaneously, the clamping strips on both sides further fix the milling cutter, reducing the gap between the milling cutter and the cutter holder, thereby improving the fixing effect of the milling cutter and the cutter holder.
Owner:CHANGZHOU JILEIDE INTERNATIONAL TRADE CO LTD

A boring bar adapter with support stiffness semi-active control

ActiveCN119952096BRubber ringControl cell
The application discloses a boring bar adapter with semi-active control of support rigidity, which comprises an adapter, a boring bar, a baffle, an electromagnet, a copper column, a magnet, a rubber ring, a support part, a shell, a sleeve, a control unit and an acceleration sensor; the boring bar is inserted into the adapter and fixed, and a cavity is formed at the root of the boring bar through the baffle and the shell; the electromagnet is arranged in the cavity, and an axial gap exists between the electromagnet and the magnet; the interaction force between the electromagnet and the magnet is controlled through the control unit; the other end is the rubber ring, which is placed in the space formed between the rubber ring base and the shell; the force received by the magnet is transmitted through the sleeve to extrude the rubber ring, change the support rigidity of the rubber ring and further change the rigidity of the boring bar; the acceleration sensor is arranged on the rubber end side, and the current size is adjusted through the control unit to change the pressure condition of the rubber ring, so that the change of the support rigidity of the boring bar is realized. The application is used for deep hole machining.
Owner:BEIJING UNIV OF TECH

A method for mining a gently inclined, extremely thin vein by reserving a strip pillar and horizontal deep hole

The present application relates to the technical field of mining engineering, and discloses a kind of gently inclined extremely thin lode reserved strip column horizontal deep hole mining method, by gently inclined extremely thin lode reasonable division ore block, top column, bottom column and strip column are reserved, both can rely on column body support roof, improve stope stability, also can be separated by strip column room, optimization stoping layout, simultaneously adopt horizontal deep hole differentiating charge blasting, with cutting up mountain as compensation space double-side retreat mining, initial section uses continuous charge, after blasting, connect each room, guarantee ore pass smooth, subsequent non-continuous charge is used, avoid the area where top column, bottom column and strip column are located, only lateral caving ore is implemented to room section, realize accurate ore stoping, reduce dilution rate, and top column and bottom column reserved replace traditional artificial filling retaining wall, only a small amount of retaining wall is needed to build, save cumbersome procedure, greatly improve efficiency and reduce cost, simultaneously simplify process, improve operation safety, realize extremely thin lode safe, efficient, low-cost mining.
Owner:WUHAN UNIV OF SCI & TECH +1

Large-length-diameter-ratio valve sleeve deep hole machining process

The application relates to a large-length-diameter-ratio valve sleeve deep hole machining process, which is characterized by comprising the following steps: step one, rough turning; step two, gun drilling; step three, turning and milling; and step four, turning and fine boring of the inner hole; step four is operated by using a center support tool for inner hole machining; after the rough boring of the lathe, the inner hole is once fine bored to complete the hole diameter machining; the center support tool is installed on the lathe guide rail; during machining, the suspended part of the part is supported, and the clamped part and the tool holder support part are used to fix the part. The large-length-diameter-ratio valve sleeve deep hole machining process changes the previous one step into the present four steps, improves the efficiency, saves the cost and can meet the high-precision requirement.
Owner:WUXI YINGBEI PRECISION BEARING

A high uniformity silver plating process suitable for deep blind via features

ActiveCN116446003BGas cylinderDrive shaft
The application discloses a high-uniformity silver plating process suitable for deep blind hole features and relates to the field of part surface treatment, and comprises a supporting table, one side of the supporting table is provided with a supporting column, the top end of the supporting column is provided with a top base, one side of the top end of the top base is provided with a gas cylinder, the bottom end of the gas cylinder is provided with a telescopic end, the bottom end of the telescopic end penetrates through the top base, the bottom end of the penetrating end is provided with a lifting table, the top end of the lifting table is provided with a clamping base, the telescopic end is clamped in the inside of the clamping base, two through grooves are formed in one side of the top end of the lifting table, personnel can align a conical cylinder with a deep hole in the side of a silver-plated part, at the moment, a motor is started, the conical cylinder is rotated through a driving shaft, at the moment, cleaning strips outside the conical cylinder rotate in the hole, dust, impurities and liquid residues in the hole are cleaned, and it is to be noted that the cleaning strips are soft materials and can be extruded.
Owner:镇江大全金属表面处理有限公司

Method for boring a stepped deep hole with an adjustable function precision boring tool

ActiveCN122033697BExtended service lifeReduce the risk of processing out of toleranceTime domainReal time analysis
The present application relates to the technical field of boring processing, in particular to a boring processing method of a step deep hole fine boring cutter with adjustable function. Firstly, based on the vibration data and temperature data collected by the boring cutter in real time, the time domain and frequency domain characteristics of the vibration data are analyzed in real time by using a sliding window, so as to obtain a vibration instability value. Then, according to the vibration data and temperature data of the boring cutter in historical normal processing, a preset vibration deviation value range and a preset normal temperature value range are respectively constructed, so as to identify the abnormal time of the vibration data and temperature data. Finally, according to the time interval of the abnormal time, the abnormal proportion of the vibration data in the time interval and the vibration instability value, a boring cutter instability coefficient is calculated, and the fixed boring parameters are adjusted according to the boring cutter instability coefficient, so as to realize real-time monitoring and closed-loop control of the processing process, and effectively improve the boring stability and processing precision.
Owner:HANDAN HENGGONG METALLURGICAL MACHINERY CO LTD

Deep hole inspection plate (48 holes)

1. Name of the product in this design: Deep Hole Inspection Plate (48 Holes). 2. Purpose of this design: To carry the liquid used for detection in nucleic acid extraction. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:ANHUI BOYI BIOTECHNOLOGY CO LTD

A deep hole inner keyway processing device based on boring and milling machine X-axis feeding

This invention discloses a deep-hole long keyway machining device based on X-axis feed of a boring and milling machine. It includes a boring and milling machine bed, a milling spindle with power input mounted on the machine bed, and a milling cutter mounted on the spindle. A transmission mechanism extending along the length of the boring and milling machine bed is provided between the milling spindle and the milling cutter. The advantages are: The innovative use of an X-axis-extending transmission mechanism between the milling spindle and the milling cutter constitutes a long-neck milling head structure. Machining along the length of the keyway is achieved by the movement of the slide and column along the X-axis. Compared to traditional boring and milling machines using Z-axis + W-axis feed, which inherently has lower machining accuracy and gradually decreases with increasing milling head extension length, this machining device uses X-axis feed, resulting in higher accuracy. Furthermore, the milling head remains stationary relative to the slide during machining, maintaining a constant machining accuracy without decreasing with increasing X-axis travel. Therefore, it can better meet the machining requirements of long keyways in deep holes.
Owner:JIANGSU COLLEGE OF INFORMATION TECH

A method for fabricating a small-entrance, elliptical-gradient, large-deep cavity

ActiveCN118455949Beffective combinationAvoid breakageSurface roughnessMinor axis
To address the issues of insufficient performance and high cost associated with integral casting and additive manufacturing methods for parts with small-entry elliptical gradient deep cavities, and the difficulties, low efficiency, and high cost of metal removal methods, this invention proposes a machining method for elliptical gradient deep cavities with small entry points. The method involves first rough drilling and rough turning to obtain a deep hole. Then, a step-by-step machining approach is adopted, dividing the part into regions and machining them axially and radially. First, the part is tilted to machine the regions on both sides of the major axis of the ellipse. Then, the part is turned upright to machine the regions on both sides of the minor axis of the ellipse. During the upright machining, a radial layering and thin-cutting fast-running method is used. Several layers are machined using the first toolpath until the machining residue in the undercut and triangular regions is removed. Then, a second toolpath is used for contour machining to obtain a gradient deep cavity with an elliptical cross-section. Finally, the gradient deep cavity is precision milled until its internal dimensions and surface roughness meet the design requirements.
Owner:XIAN WINWAY TOOLS

BTA deep hole drill guide key and preparation method thereof

This invention discloses a BTA deep hole drill guide key and its preparation method, belonging to the field of deep hole machining tool technology. The guide key comprises an alloy steel substrate and a PCBN composite sheet fixed thereon. The PCBN composite sheet sequentially comprises a cemented carbide base layer, a gradient transition layer with progressively increasing CBN content, and a polycrystalline cubic boron nitride working layer. This invention also discloses the preparation method of the guide key and a BTA deep hole drill incorporating the guide key. This invention solves the problem of high thermal stress and easy cracking at the PCBN-cemented carbide interface through a gradient transition layer design. Applying the PCBN composite sheet to the guide key of the BTA deep hole drill significantly improves the wear resistance and service life of the guide key. In deep hole machining of difficult-to-machine materials, the guide key life is more than 15 times longer than traditional cemented carbide products. Simultaneously, it significantly improves drilling straightness and surface quality, reduces tool change downtime, and is suitable for high-speed cutting and deep hole machining of various difficult-to-machine materials.
Owner:HENAN GAOLING PRECISION TOOLS CO LTD

A guiding and stabilizing device for deep hole drilling of shaft parts

This application provides a guiding and stabilizing device for deep hole drilling of shaft parts, relating to the field of shaft part machining technology. It includes a base, a fixing mechanism fixedly mounted on the top of the base, a shaft part mounted on the fixing mechanism, and supporting guide rails fixedly mounted on both sides of the rear of the top of the base. A top plate is fixedly mounted between the top ends of the two supporting guide rails. After the shaft part is clamped by the fixing mechanism, a hydraulic telescopic rod drives the motor frame to feed vertically along the stabilizing component. The limiting guide component moves downwards synchronously, and a servo motor drives the transmission screw to make the guide arc plate first hug the outer circle of the workpiece to form a rolling clamp. During drilling, the limiting guide component always follows and provides real-time lateral support, effectively offsetting the cutting impact, suppressing drill rod deflection, and eliminating the need to overcome the increasing spring reaction force, significantly improving the coaxiality and stability of deep hole machining.
Owner:BAOTOU LANGUANG GEAR

Construction process of anti-floating anchor rod and anti-floating anchor rod

This application relates to the field of anti-buoyancy technology in building engineering, and particularly to an anti-buoyancy anchor construction process and an anti-buoyancy anchor, comprising: S1: preliminary preparation; S2: rod assembly; S3: hole drilling and enlarging, drilling a deep hole at a preset position, and after drilling to the target depth, performing end enlarging construction within the enlarged hole depth range to form an anchoring grouting zone; S4: anchor lowering, lowering the finished anchor to the target depth in the hole, at which time the enlarged bladder extends into the sediment at the bottom of the hole; S5: grouting operation, injecting grout into the enlarged bladder through a grouting pipe to expand the enlarged bladder and push the sediment at the bottom of the hole outward until the enlarged bladder is filled with grout, completing the grouting construction in one step, and completing the grouting construction of the gap between the anchor rod and the inner wall of the hole; S6: prestressing locking; S7: casting to obtain the anchor anti-buoyancy system; This application has the effect of reducing the possibility that sediment at the bottom of the hole will combine with the concrete mortar during the grouting process and affect the anchoring effect of the anti-buoyancy anchor.
Owner:BEIJING GEOLOGICAL ENG CO

A device for rock drilling applied to medium-deep hole drilling machine

The utility model relates to underground mine engineering machinery field discloses an equipment for medium -deep hole drilling machine rock drilling, including rotary disc, the inner wall rotation of rotary disc is connected with drive frame, the outer wall of rotary disc is installed with support frame, the inner wall sliding connection of drive frame has mounting seat, the outer wall fixed connection of mounting seat has driving piece, the lower surface of drive frame is installed with drill rod replacement mechanism, and drill rod replacement mechanism includes drill rod placement subassembly, and drill rod placement subassembly includes installation shell. In the utility model, through setting up multiple telescopic links, multiple different drill rods can be pre-stored, the accurate position selection of rotating rod is utilized, the quick switching demand of drill rod under complex working conditions is satisfied, especially suitable for the continuous deep hole operation of lengthened drill rod, and the whole automatic operation of drill rod winding and unwinding assembly is matched, workers do not need to enter the dangerous area below the drilling arm, completely avoid the risk of rock debris falling and mechanical collision, and the practicality of the device is improved.
Owner:YUANYANG HUAXI GOLD

Formwork device and formwork method for underground deep hole wall protection

The present application relates to the field of deep hole construction, and discloses a formwork device for underground deep hole and a formwork erecting method.The formwork device for underground deep hole comprises a formwork unit, a central framework, an upper support sliding unit and a lower support sliding unit.The upper support sliding unit and the lower support sliding unit each comprise at least one support disc, and are sleeved on the central framework through the support disc and can slide up and down on the central framework.The upper support sliding unit is located above the lower support sliding unit.The support disc of the upper support sliding unit and the support disc of the lower support sliding unit are each hinged with a support rod.Each support rod is respectively hinged with a formwork unit.Each formwork unit is unfolded to form a complete formwork.The formwork device can be hoisted in the underground deep hole by moving the upper support sliding unit and the lower support sliding unit to control the unfolding and contraction of the formwork unit, and can realize rapid formwork erecting and rapid formwork stripping.The whole process is convenient and fast, and the formwork device is simple to use and has high formwork erecting efficiency.
Owner:CHINA 19TH METALLURGICAL CORP

High-efficiency copper wire drawing manufacturing process

This invention discloses a high-efficiency copper wire drawing manufacturing process, belonging to the field of high-efficiency copper wire drawing technology. Step one: Polishing and removing impurities such as copper rust from the exterior of the copper wire, then immersing the copper wire in a cleaning solution for cleaning, and heating the cleaned copper wire in a vacuum furnace; Step two: Drawing the copper wire through a mold to obtain the desired diameter, with continuous spraying of lubricating fluid during the process, and copper powder recovered through a recycling device; By employing a circulating filter belt, continuous filtration of the drawing fluid is achieved, overcoming the drawbacks of static filtration which is prone to clogging, and ensuring continuous and stable filtration efficiency. Deep hole cleaning: Through a unique insert-filter hole matching mechanism (precise matching of drive plate, guide block, insert and filter hole), copper sludge embedded deep in the filter hole can be physically ejected, solving the problem of incomplete surface cleaning of traditional filter belts, fundamentally preventing filter hole clogging, and ensuring long-term and stable permeability of the filter belt.
Owner:GUIYANG ZHONGAN TECHNOLOGY GROUP METAL WIRE DRAWING CO LTD

A hole site parameter optimization analysis method based on open deep hole blasting

ActiveCN120970412BData setAlgorithm
The present application belongs to the technical field of deep hole blasting parameter optimization, and discloses a hole site parameter optimization analysis method based on open pit deep hole blasting. The present application determines rock types through multi-index coordination, improves the accuracy of rock classification by combining a dynamic threshold adjustment mechanism, and ensures the accurate matching of hole site parameters and geological conditions. The present application determines through three-level correlation of geological parameters-rock types-mapping relationship, avoids the limitations of empirical formulas, and makes the parameter range more in line with actual geological characteristics. At the same time, historical blasting data sets are introduced for similar case matching, potential risk parameter sets are removed through experience screening, the deviation between theoretical simulation and actual engineering is reduced, and the parameter reliability is improved. The present application adopts a multi-objective optimization model, simultaneously considers fragmentation quality, safety control and economy, outputs a parameter set balancing each target through a Pareto optimal algorithm, and realizes the coordinated optimization of high quality, low risk and low cost.
Owner:CHINA BUILDING MATERIALS NEW MATERIALS CO LTD

A bench deep hole blasting method for open pit mine

ActiveCN119573498BBlastingDetonatorDetonation
This invention discloses a deep-hole blasting method for open-pit mine benches, relating to the field of blasting engineering technology. Existing open-pit mine bench blasting methods tend to result in excessive large blocks on the slope and in the front section of the bench, increasing excavation difficulty and transportation safety hazards. This method includes: drilling an inclined first main blast hole and a vertical second main blast hole at the end of the bench near the slope; drilling a first auxiliary hole on the slope that intersects with the first main blast hole; and setting a second auxiliary hole beside the first main blast hole on the bench; loading explosives into each blast hole; connecting all blast holes with detonating wires to form a detonation network; and detonating with a detonator. The first and second main blast holes can be arranged in a quincunx pattern, with the second main blast hole being vertical. Each main blast hole includes a filling section and a loading section. This method compensates for insufficient explosive stress on the slope and in the front section of the bench by setting auxiliary holes, thereby improving the blasting effect.
Owner:XINJIANG UNIVERSITY

Blasting structure for improving large cross-section tunneling footage

ActiveCN224552229UTEX-explosiveArchitectural engineering
The utility model belongs to the field of tunneling blasting technology, especially improve the blasting structure of large section tunneling footage, including the big diameter empty hole of setting in the center part of roadway section and the 6 auxiliary empty holes of the circular array distribution setting with big diameter empty hole as the center, the diameter of big diameter empty hole is 4 5 times of auxiliary empty hole diameter, through the former cut -groove hole is omitted, change for the big diameter empty hole of being located in the center of auxiliary empty hole, make the utilization ratio of blast hole effectively improve, explosive unit consumption reduces, and the tunneling cost reduces, and the blasting frequency is reduced, can reduce the dust, vibration harm, reduce the security risk, avoid the cut -groove hole construction rock burst risk, with the big diameter deep hole cut -groove way, the cycle footage of roadway blasting excavation is larger, and the cycle footage is stable, and the tunneling construction efficiency is greatly improved, and the overall application effect is good.
Owner:FUJIAN HAIXIA KEHUA FUXING CONSTR ENG CO LTD

Gear shaft deep hole machining tool

The utility model discloses a gear shaft deep hole processing tool, concretely relates to gear shaft processing technical field, including handle, the one side fixed setting of handle has the tool shank, the one side fixed setting of tool shank has the tool head, the inside setting of tool shank has cooling mechanism, and cooling mechanism includes the hollow slot of setting in the inside of tool shank, the inside fixed setting of hollow slot has cooling liquid pipe, and the cross section of cooling liquid pipe sets up as L shape, and the one end of cooling liquid pipe is through tool head and extends to the inside of tool head, and the surface of cooling liquid pipe sets up a plurality of cooling liquid mouth, and the one end fixed setting of tool head has cutting edge. In the utility model, the cooling liquid can be accurately sprayed to the cutting edge, the cutting heat is quickly taken away, the tool wear is effectively reduced in time, the service life of tool is prolonged, the processing cost is reduced, and the economic benefit and processing quality of gear shaft deep hole processing are improved.
Owner:JUNMAO PRECISION MFG (SUZHOU) CO LTD

A detection device and method for roughness and profile morphology of inner wall of deep hole type part

A detection device and method for detecting the roughness and contour morphology of the inner wall of deep-hole parts are disclosed, relating to the field of surface inspection technology. This invention addresses the problems of limited space, contact measurement damage, and low efficiency in existing surface inspection technologies for detecting the inner wall of deep-hole parts. The transmitting end component of the device includes a laser, a shaping prism, and a multifaceted prism; the receiving end component focuses the laser beam onto a camera component. The laser emits a laser beam, which is then irradiated onto the inner wall of the deep-hole part through the shaping prism and multifaceted prism to form a ring beam. The receiving end component acquires the ring-scattered image of the inner wall and converts the light spot positions in the image into three-dimensional spatial coordinates. The three-dimensional spatial coordinates are processed by a host computer to obtain the complete three-dimensional morphology of the inner wall of the deep-hole part. This invention improves detection efficiency; structurally, it adopts a miniaturized integrated design, adaptable to deep-hole parts of different diameters, improving the adaptability and automation level of the detection scenario.
Owner:XIAN TECH UNIV