2413 results about "Drill hole" patented technology

The invention provides a tunnel hard rock non-blasting excavation method. The tunnel hard rock non-blasting excavation method can realize efficient excavation of complete or relatively complete hard rock without adopting large excavation equipment such as a heading machine and the like , and is characterized by comprising the following steps of 1, drilling contour holes along a tunnel face contour line so as to determine a tunnel excavation range, and determining each drilling and grooving position according to the excavation range, then, forming and drilling a plurality of cavity expanding holes in the position close to the positions; 2, drilling a plurality of rows of guide holes between the contour holes and the cavity expanding holes; 3, drilling groove forming holes which are meshed and overlapped with each other at the determined drilling and grooving positions, and finally forming a groove cavity; 4, enabling the cavity expanding holes near the groove cavity to be subjected to impact crushing, and therefore expanding excavation is conducted on the groove cavity; 5, according to a certain excavation sequence, starting from the guide holes close to the expanded and excavated groove cavity, adopting a hydraulic breaking hammer for conducting impact breaking on the guide holes, so that excavation of the rock mass of a main body part is completed; and 6, conducting impact crushing on the contour holes.

The present disclosure relates to a method for assessing injection of a fluid into a borehole (11) defined by a borehole wall (12) extending into a body (10), the method comprising: - initiating (S1) the injection of the fluid into the borehole (11) using a fluid injection arrangement, - detecting (S2) fluid outside the borehole (11) and the fluid injection arrangement (20) using a detection device (30), and - on the basis of at least one of the following: - a detected position of the detected fluid outside the borehole (11) and the fluid injection arrangement (20), - an injection volume of the fluid, and - a time lapse (TL) from the time of initiation of fluid injection into the borehole (11) to the time of fluid detection outside the borehole (11) and the fluid injection arrangement (20), assessing (S3) the injection of fluid.

The present application belongs to the field of coal mine roadway construction, and particularly relates to a method for self-forming a roadway by top cutting at a negative angle. The method comprises the following steps: drilling a field in front of a working face and close to a right side of a mining roadway; drilling anchor holes and top cutting holes along a strike and staggered construction, and installing grouting anchor cables in the field; cutting the basic roof and the immediate roof at a negative angle through the top cutting holes at the back of the working face, constructing a roadway-side gangue retaining structure, grouting through the grouting anchor cables and anchoring the grouting anchor cables on the roadway-side gangue retaining structure; and monitoring the deformation of the steel mesh at the grouting anchor cable and adjusting through a nut. The present application can ensure that the construction position of the roadway-side gangue retaining structure does not affect the width of the self-supporting roadway and the integrity of the roof by constructing a field of a certain width in advance. The negative angle top cutting holes can cut a section that is deviated to the direction of the goaf, so that the gangue formed by the collapse of the immediate roof moves to the direction of the goaf and does not move to the mining roadway in large quantities, thereby ensuring the safety of the construction in the mining roadway.

The application discloses a tunnel advanced drilling harmful gas detection device and method, and relates to the technical field of tunnel construction. The tunnel advanced drilling harmful gas detection device comprises a sleeve pipe; a laser monitoring module is arranged on the sleeve pipe; the laser monitoring module is used for emitting laser along the axial direction of the sleeve pipe in the sleeve pipe, and is used for distance measurement and harmful gas concentration monitoring; a shielding module is arranged on the sleeve pipe; the shielding module is used for periodically shielding the laser emitted by the laser monitoring module; a gas flow speed monitoring module is arranged on the sleeve pipe; and the gas flow speed monitoring module is used for monitoring the harmful gas flow speed in the sleeve pipe. The application can accurately detect the harmful gas concentration at the bottom of the advanced drilling hole, and provides an accurate basis for the tunnel harmful gas risk evaluation.

The application discloses a through-layer drilling ring flow supply self-cleaning and blocking integrated hole bottom extraction non-jetting drill tool, which comprises a multifunctional rod body, an extraction inner group pipe, a radial cavity forming nozzle, an axial blocking nozzle, a conical hole screen plate strip, an air inlet transition piece, a cross-border air inlet pipe, a compression spring slide valve assembly and a ring flow opening and closing drill bit. The special slide valve control mechanism is adopted, the original radial cavity forming jet flow is reserved, and the instantaneous axial blocking jet flow is added, so that the conical hole screen plate strip is self-cleaned and blocked. The cross-border air inlet pipe and the transition air inlet piece are combined and sealed, so that the radial air inlet channel passes through the axial flow supply channel without air and water leakage. The ring flow supply anti-backflow opening and closing drill bit is designed, and the jet flow water medium pollution problem and the drill bit opening and closing problem are solved.

The utility model relates to a kind of drilling device for super-long graphite rod processing, including tool tip and the tool holder connected with tool tip. Tool tip is set to three-prism pyramid shape. Tool tip includes: first cutting edge, at least two first cutting edges are symmetrically arranged, and the edge of at least two first cutting edges forms first angle;Second cutting edge, at least four second cutting edges are axially symmetrically arranged, and the plane of at least two second cutting edges forms second angle with the plane of opposite at least two second cutting edges. Chip removal platform formed due to first angle and second angle not being identical is arranged between tool tip and tool holder. The utility model is set to three-prism pyramid shape tool tip, and adopts multi-angle cutting edge (with symmetrically arranged first cutting edge and axially symmetrically arranged second cutting edge), so that tool is more uniform in cutting process Stress, can effectively reduce cutting force and cutting torque, can further reduce cutting resistance and vibration, improve cutting efficiency and machining precision.

The present application belongs to the field of coal mine, and relates to a coal mine underground orifice blowout prevention dust isolation device, which comprises, in sequence, a stamping dust isolation assembly, a gasket eccentric isolation assembly, a columnar brush array isolation assembly and a slag collecting main body, the slag collecting main body is connected with an orifice sealing pipe in a hole, and a drill rod is arranged through the stamping dust isolation assembly, the gasket eccentric isolation assembly, the columnar brush array isolation assembly and the slag collecting main body. The present application realizes the blocking of dust in the hole through the brush dust blocking of the columnar brush array isolation assembly, the eccentric dust isolation of the eccentric isolation assembly and the stamping dust isolation of the stamping dust isolation assembly, realizes the linkage control of the mechanism on the sealing assembly, and the greater the gas pressure sprayed out of the hole, the better the sealing effect of the sealing assembly, so that the safety hidden danger problem of gas spray hole in the drilling process can be effectively solved.

The present application relates to geotechnical engineering technical field, specifically to a kind of slope stabilizing mechanism and its construction technology, wherein, the slope stabilizing mechanism includes moving assembly, moving assembly includes expansion part and drive structure.Expansion part has the contraction state along the radial contraction of anchor rod and the expansion state along the radial expansion of anchor rod.Drive structure drives expansion part to move on anchor rod axially, and control expansion part switches between contraction state and expansion state.When expansion part is in expansion state and moves along anchor rod axially, the hole wall of drilling can be continuously wiped, the low-intensity, low-permeability mud skin structure formed on the surface of drilling hole wall due to drilling construction is broken, the loose drill cuttings and collapse on the surface of hole wall are removed, so that the surface roughness of drilling hole wall is improved, and then the interfacial bond strength between drilling hole wall and grouting body is enhanced, to avoid mud skin, drill cuttings and other impurities to hinder the effective combination of grouting body and hole wall.

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.

This invention discloses a grouting and sealing device for fault water hazard prevention, relating to the field of underground grouting and sealing technology in coal mines. It includes a grouting component body with a feed pipe fixedly installed on its inner surface. The grouting component body is equipped with at least two sealing mechanisms. Through the arrangement of these sealing mechanisms, when encountering a gourd-shaped borehole, the segmented arrangement of the first and second expansion capsules allows the external air supply end to inflate the first expansion capsule. With the cooperation of the connecting and limiting components, the first and second expansion capsules are positioned in the larger and smaller diameter areas of the gourd shape, respectively. This allows the first and second expansion capsules to expand to appropriate sizes after expansion, respectively, to cooperate with different areas during sealing. This avoids poor contact with the gourd-shaped borehole wall during sealing, increases the sealing contact area with the borehole wall, and ensures the sealing effect during grouting and sealing.

This invention provides a method and apparatus for constructing ring-hole pile foundations in hard rock formations. After site leveling and equipment placement, a central hole is drilled at the center of the pile foundation to create free space. A rotary drilling rig is used to drive a swivel casing for segmented ring drilling, causing the hard rock mass to fracture and form segments. After lowering the cable wedge assembly, a vertical churning action is used to lock the wedge blocks into the rock mass. During construction, the swivel casing and cable wedge assembly are simultaneously hoisted and transported to remove the rock blocks. Vibration disturbance completes the unloading operation, and the process is repeated until the pile foundation hole is formed. This invention solves the technical problems of weak geological adaptability, difficulty in controlling rock mass fragmentation and removal, and poor overall construction performance in existing hard rock pile foundation drilling construction techniques.

A method for bone fixation using a compression staple system may include loading a compression staple including legs into an inserter, positioning a drill guide proximate first and second bone portions, using the drill guide and a drill to create a first and second hole in the first and second bone portions, wherein the first and second holes may be configured to receive the legs of the staple, using the drill guide and a first and second drill pin, driving the first and second drill pins into the first and second bone portions, withdrawing the drill guide and leaving the drill pins in the first and second bone portions, guiding the inserter and the staple over the first and second drill pins, inserting the legs of the staple into the first and second holes, actuating the inserter to release the staple, withdrawing the inserter, and removing the drill pins.

This invention discloses a high-altitude high-intensity laser drilling device for power transmission towers, relating to the technical field of laser cutting and drilling devices. It includes a positioning disk one and a positioning disk two, with an installation assembly positioned between them. A support assembly is slidably mounted on the side wall of the installation assembly. A drive assembly is mounted on the side wall of the positioning disk one. An axial adjustment assembly is rotatably connected inside the drive assembly. A laser generator is rotatably mounted inside the axial adjustment assembly. The laser generator moves axially through the drive of the axial adjustment assembly, and the axial adjustment assembly rotates eccentrically between the positioning disk one and the positioning disk two through the drive assembly. By setting an eccentric circular groove built into the drive assembly, and cooperating with a gear meshing transmission structure, the axial adjustment assembly and the laser generator can achieve stable eccentric revolution, forming a regular annular cutting trajectory according to processing requirements, effectively ensuring the consistency and centerness of the drilled hole diameter, and avoiding excessive hole diameter deviation.

This utility model discloses a hole-expanding device for producing drive shaft connectors, including a hole-expanding device body. A fixing frame is fixedly connected to the top of the hole-expanding device body, and a sliding groove is formed on the top of the fixing frame. This utility model places the connector on the bottom of a fixing plate, then activates an electric push rod, which drives the fixing plate downwards to initially fix the connector. During use, a drive motor is activated to rotate the drill bit for drilling. Then, a servo motor is activated, which drives a drive gear to rotate. The drive gear drives a driven gear to rotate, which in turn drives a screw to rotate. This causes the screw to move a threaded sleeve downwards, which in turn moves the mounting frame downwards, causing the drive motor to move downwards. This process expands the hole in the connector, replacing existing methods that rely heavily on manual processing, thus reducing manual intervention and enabling faster and more efficient processing.

The utility model discloses a directional drilling unjamming device relates to directional drilling unjamming technical field, including base, be equipped with lifting assembly on the base and be located opening both sides respectively, be equipped with hammering subassembly on the base and be located opening rear, the utility model will the fixed mounting of bottom plate be in the drill rod, and make the drill rod embed in the opening and the mouth, the plug -in block is inserted into the dovetail groove through the dovetail rod at this time, the plug -in block is installed at the mouth, the first through -hole and the second through -hole are located on the same axis at this time, insert the limiting bolt into the first through -hole and the second through -hole, and the limiting nut is screwed on the limiting bolt, the upper slip body is inserted into the upper slip seat at this time, and then the drill rod is fixed, the upper slip seat is pushed through the lifting assembly, and then the upward thrust is provided to the drill rod, and the vibration force and the knocking force are provided to the upper slip seat through the hammering subassembly, and then the drill rod is unjammed.

This invention relates to the field of drilling equipment technology, specifically to a diamond-coated drill bit, comprising a drill bit connecting rod and a drill bit; water passage holes are provided inside the drill bit connecting rod and inside the drill bit, a first water outlet device is provided at the top of the water passage holes, and the first water outlet device is provided with a plurality of first water outlet holes; a second water outlet device is provided inside the water passage holes; the second water outlet device includes a screw, a plunger, and a turntable; the turntable is rotatably connected to the inner wall of the drill bit connecting rod in the horizontal direction, and the bottom of the turntable is provided with serrations that mesh with a gear, the gear being mounted on a rotating rod; the screw is threadedly connected to the turntable, and one end of the screw is connected to a mounting plate, the mounting plate being provided with a vertical plunger that can be inserted into the first water outlet hole; the plunger has a hollow structure, with a second water outlet hole on its upper side and its lower end communicating with the water passage hole. The first and second water outlet devices of this invention provide dual protection for the cooling of the drill bit, and also prevent the water outlet holes from becoming blocked.

The present application relates to the technical field of drilling, and discloses a mountain drilling machine, which comprises support parts arranged symmetrically, a connecting part arranged between the two support parts, a motor one arranged below the connecting part and a drill rod connected to the output end of the motor one, and a supporting mechanism, which comprises guide rails slidingly inserted into the bottom ends of the support parts and used for adjusting the positions of the support parts, bases arranged below the two ends of the guide rails and used for supporting the guide rails, and a plurality of inserting rods fixed to the bottom side of the base and used for fixing the position of the base, and the connecting part is provided with an adjusting mechanism used for adjusting the angle of the drill rod. The position of the drill rod of the drilling machine can be adjusted according to the punching coordinate point, so that the drilling operation of the punching coordinate point can be quickly performed, the angle of the drill rod can be flexibly adjusted, the flexibility is high, the mountain drilling machine can be adaptively controlled according to the construction environment, so that the construction personnel can conveniently install the mountain drilling machine in the complex construction environment, and the working performance is good.

A first aspect relates to a downhole apparatus comprising an anchor 113 having a gripping element for engaging a borehole 104 to restrict relative axial and / or rotational movement between the anchor a

The application relates to the field of PCB processing technology and discloses a PCB short slot hole processing equipment capable of preventing deviation. The equipment comprises a fixed square plate, an electric push rod fixedly connected to the bottom of the fixed square plate, a driving shaft of the electric push rod penetrating through the fixed square plate and fixedly connected with a pressing plate, a square rubber pad fixedly connected to the bottom of the pressing plate, and a bottom penetrating rod fixedly connected to the bottom of the pressing plate. The PCB short slot hole processing equipment capable of preventing deviation is characterized in that the square rubber pad is used for elastically and tightly fixing the plate body and increasing the static friction of the plate body through the rubber surface, so that the plate body is prevented from continuously deviating slightly and affecting the processing precision of the short slot hole due to shaking or shaking during drilling processing. The hollow region between the fixed square plate and the pressing plate is used for conveniently discharging the residual chips to the outside, so that the residual chips cleaned by the cleaning device are prevented from being pushed to the fixed square plate and the pressing plate to accumulate and affect the placement of the subsequent PCB.

The present application belongs to the technical field of coal mine safety engineering, and particularly relates to a gas extraction blind area detection method and system based on three-dimensional space analysis and intelligent algorithm. The method is based on the secondary development of the AutoCAD platform. The system calls the AutoCAD ActiveX interface through VBA programming, realizes the automatic import of the extraction drilling data and three-dimensional modeling, and adopts the Bezier interpolation algorithm to construct the coal seam model under the influence of gas extraction. The present application realizes the automatic and high-precision detection of the gas extraction blind area, has high detection accuracy, greatly reduces the manual detection error, improves the coal mine gas control efficiency, and provides intelligent technical support for the prevention and control of gas disasters.

The embodiment of the present application discloses a pressure relief device, which comprises a sleeve and a cleaning component; the sleeve is used for being inserted into a coal seam drilling hole, an outer side wall of the sleeve is abuttable with an inner side wall of the drilling hole, and the outer side wall of the sleeve has a hole; the cleaning component is arranged in the sleeve along an axial direction of the sleeve and is movable relative to the sleeve, the cleaning component has a first end and a second end, the first end of the cleaning component is located outside the sleeve, and the second end of the cleaning component is movable outward along the axial direction of the sleeve. The pressure relief device of the embodiment of the present application realizes the effect of repeated pressure relief of a working face, has good pressure relief effect and high construction safety.

This invention relates to the technical field of titanium alloy processing, and discloses a magnetic suction auxiliary device and processing method for drilling titanium alloys. The device includes an adapter magnetic conductor, comprising a mating surface and a magnetic suction surface arranged opposite each other. The adapter magnetic conductor has a positioning through groove that penetrates both the mating surface and the magnetic suction surface. A fixing clamp includes a first clamping plate, a second clamping plate, and a fixing member. The first clamping plate and the second clamping plate are arranged opposite each other to clamp the adapter magnetic conductor and the titanium alloy base between the first clamping plate and the second clamping plate. The first clamping plate has a first through hole, and the second clamping plate has a second through hole. The fixing member passes through the first through hole and the second through hole to tighten the first clamping plate and the second clamping plate together. The magnetic suction auxiliary device and processing method for drilling titanium alloys of this invention, through the cooperation of the adapter magnetic conductor and the fixing clamp, has a simple overall structure, small size, and flexible movement, enabling drilling in environments with limited processing space or when the workpiece is difficult to move.

This invention belongs to the field of bridge maintenance technology and proposes a method for reinforcing cracks in bridge corbels, including the following steps: S1. Scaffolding erection; S2. Bridge bottom surface cleaning; S3. Vertical drilling of the bridge; S4. Erection of the reinforced box girder; S5. Fixing of the reinforced box girder; S6. Side formwork erection; S7. Grouting; S8. Formwork removal; S9. Groove filling and post-construction maintenance. This invention provides a strong support to the original bridge bottom surface by reinforcing the box girder and injecting reinforcing grout into the cracks and grouting cavities. After the grout solidifies, it not only repairs the damaged cracks inside the corbel but also tightly bonds the reinforced box girder, the solidified grout, and the original bridge structure together, improving the reinforcement effect and overall load-bearing capacity of the bridge corbel.

This invention relates to the field of circuit board manufacturing technology, specifically to a production capacity improvement device for liquid crystal display circuit boards, comprising a disc placement unit, a clamping mechanism, and a drilling mechanism. In this invention, the clamping bars and the mating top plate cooperate with each other. After the circuit board is lowered, the four corresponding clamping mechanisms work together to quickly clamp the circuit board, ensuring stability during processing while minimizing the time spent clamping the circuit board. Simultaneously, the release mechanism allows the drilled circuit board to move quickly upwards for easy removal, further reducing the time spent clamping the circuit board and thus improving the production capacity. The adjustment mechanism moves the lower left corner of the circuit board to a designated position, facilitating subsequent drilling operations based on this position, thereby reducing the time spent adjusting the circuit board's position and further improving production capacity. It can also accommodate circuit boards of different sizes.

This invention discloses a method for hydraulic mining of ultra-steep and steeply inclined coal seams using boreholes, relating to the field of coal mining technology. The method includes a roadway layout in the mining area, with roadway modules arranged in the pseudo-incline uphill and longwall mining face roadways of the steeply inclined coal seam. The borehole hydraulic mining module includes boreholes and a borehole hydraulic mining system, with a drilling water gun fixed to the top of the drill rod. High-pressure water jets generated by the drilling water gun are used to break up the coal body around the borehole, achieving hydraulic mining. The coal and water transport module includes a coal and water gravity flow channel and a gravity flow trench. A flexible protective net is used to isolate the goaf and protect the coal face and the coal and water gravity flow channel. Therefore, this method requires only the lower roadway drilling rig operator, enabling unmanned operation of the coal face and providing a new technical approach for the safe and efficient mining of steeply inclined coal seams.

The utility model relates to the technical field of security engineering construction, in particular to a drilling device for security construction, which is safe to use and comprises a first U-shaped plate, a second U-shaped plate is arranged at the top of the first U-shaped plate, and a sliding rail and a two-way air cylinder are fixedly arranged on the surface of the first U-shaped plate and the surface of the second U-shaped plate respectively. The surfaces of the sliding rails are movably sleeved with supporting plates, and one ends of the two-way air cylinders are fixedly connected with the supporting plates. Through cooperation of the screw rod, the driving motor, the L-shaped plate, the one-way air cylinders and the installation plate, the drilling structure is installed on one side of the top of the screw rod in a threaded sliding mode, the L-shaped plate is installed on the first U-shaped plate through matching of the cross supporting column and the second U-shaped plate, and the drilling structure can be installed on the first U-shaped plate by adjusting the telescopic direction of the left-right two-way air cylinders. And the supporting plate can be driven to push the angle change of the cross supporting column, then lifting and transverse fine adjustment of the drilling structure on the L-shaped plate are achieved, and the drilling precision is improved.

This invention discloses a PCB drilling device to improve production capacity, relating to the field of PCB processing technology. It includes a base, a board placement and lifting mechanism on the top left side of the base, and a drive feeding mechanism on the top right side of the base. A pushing mechanism is located on the top right side of the board placement and lifting mechanism. Two sets of limiting mechanisms are located on the left side of the pushing mechanism. A drilling assembly is located above the two sets of limiting mechanisms, and an operating table assembly is located at the bottom of the two sets of limiting mechanisms. The operating table assembly contains two sets of dual-trigger mechanisms, and a conveyor belt is located on the left side of the operating table assembly. This invention allows for simultaneous board loading and unloading operations in continuous drilling operations, further simplifying the drilling process, improving drilling efficiency, and making it more suitable for industrial PCB production.

A drilling insert includes a body having a first end and a second end opposite the first end. The body also has a cutting head at the second end, a shank positioned at the first end, a shaft extending between the shank and the cutting head, and a groove between the shank and the cutting head. The shank is configured to be received by a tool. The drilling insert further includes a sleeve surrounding the shaft and a sleeve retainer engaging the groove. The sleeve has a flute, and the sleeve retainer is configured to limit axial movement of the sleeve on the shaft.