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113results about "Drilling drives" patented technology

Rotary impact type hydraulic rock drill

The invention belongs to the technical field of rock drills, and discloses a rotary impact type hydraulic rock drill. The rock drilling bit group is arranged in one side of the rock drilling machine shell; the rotating mechanism is arranged at the top of the rock drill shell, and the rotating mechanism is located above one side of the rock drill bit set; according to the technical scheme, by arranging the hydraulic mechanism, the cooling and cleaning assembly and the driving assembly, when the hydraulic mechanism is started to make the output end collide with one end of the middle of the rock drilling bit set back and forth, the top of one side of the driving assembly is driven to move up and down back and forth; cold water in one side of the cooling and cleaning assembly can be pumped back and forth into the other side of the cooling and cleaning assembly, and then the cold water can be sprayed out through the other side, so that heat generated by the impact part of the hydraulic mechanism and the rock drilling bit group can be cleaned and cooled; the service life of parts in the rock drill shell is prevented from being influenced by high temperature.
Owner:ZHEJIANG SCI-TECH UNIV +1

Hydraulic control system for impact rotary drilling of dinting machine

The invention provides an impact rotary drilling hydraulic control system of a dinting machine, which belongs to the technical field of hydraulic control systems and comprises a variable pump, a pilot oil source control valve group, a proportional multi-way valve, a shuttle valve I, a one-way pressure reducing valve, a shuttle valve II, a drilling machine pilot handle group, an impact rotary drilling machine, a bidirectional hydraulic lock and a drilling machine feeding oil cylinder. According to the hydraulic control system for percussive rotary drilling of the dinting machine, the percussive rotary drilling machine can perform stepless speed regulation between two speeds, high-frequency percussive or low-frequency percussive operation can be flexibly used according to rock stratum and geological working conditions, the application range of equipment is greatly widened, and the hydraulic control system can be used for rock stratums with high hardness, weathered rock stratums and hard and brittle geology. And during low-frequency impact operation, one-key linkage operation can be realized, namely, the functions of feeding, rotating and impacting of the drilling machine can be completed by operating the impact pilot handle.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1

Braking pile rock-socketed percussion drill hole-forming barrel drill bit

The utility model relates to a raking pile rock-socketed percussion drill hole-forming barrel drill bit, which belongs to the technical field of barrel drill bits, and comprises a rock percussion drill hole-forming barrel drill bit body, a rotary drilling machine, a connecting shaft, a flange plate and a bolt, and a reinforcing mechanism is arranged at the top of the rock percussion drill hole-forming barrel drill bit body. The reinforcing mechanism comprises a reinforcing sleeve fixedly installed on the peripheral wall of the connecting shaft. According to the raking pile rock-socketed percussion drill hole-forming barrel drill bit, the overall compressive strength of a connecting shaft is enhanced through the effect of a reinforcing sleeve, a connecting plate is fixed through the effect of an arc-shaped mounting base and a screw, and meanwhile an arc-shaped supporting plate is mounted in the reinforcing sleeve; part of pressure is shared to the rotary drilling machine under the action of the arc-shaped supporting plate, the supporting rod and the connecting plate, the influence of gravity and pressure on the connecting shaft when the drill bit body of the rock impact drill hole-forming barrel drill inclines is reduced, and therefore the service life of the connecting shaft is prolonged, and the stability of the connecting shaft is improved.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD

Air motor assembly

An air motor apparatus for air drilling includes a filter assembly at an uphole end that receives compressed air and diverts a constant pressure portion through a filter to a vane motor and a remaining portion to an air hammer at a downhole end via bypass conduits. The apparatus includes one or more sensors for measuring drilling conditions, the sensors being connected to a communication device capable of transmitting the sensor data to the surface. The sensors and their wiring are shielded from high air speeds by bypass conduits and components of the filter assembly.
Owner:DIRECTIONAL AIR DRILLING INTERNATIONAL LLC

Air motor assembly

An air motor apparatus for air drilling includes a filter assembly at an uphole end that receives compressed air and diverts a constant pressure portion through a filter to a vane motor and a remaining portion to an air hammer at a downhole end via bypass conduits. The apparatus includes one or more sensors for measuring drilling conditions, the sensors being connected to a communication device capable of transmitting the sensor data to the surface. The sensors and their wiring are shielded from high air speeds by bypass conduits and components of the filter assembly.
Owner:BLUEGRASS DRILLING TECHNOLOGIES LLC

Extraterrestrial celestial body rock coring drill and coring and breaking method thereof

The invention relates to the technical field of deep space detection equipment, in particular to an extraterrestrial celestial body rock coring drill and a coring and breaking method thereof. The coring drill comprises an attachment mechanism, a rotary impact sliding table mechanism and a coring and core breaking mechanism which are sequentially connected, the attachment mechanism is used for being anchored to the surface of celestial rock, and the rotary impact sliding table mechanism is used for providing drilling rotation, impact power and axial feeding motion; the coring and breaking mechanism comprises an outer drill bushing, an eccentric coring pipe assembly mounted in the outer drill bushing and a drill bit connected to the front end of the outer drill bushing; the eccentric coring pipe assembly comprises a coring pipe and a driving shaft for driving the coring pipe to rotate, and the coring pipe and the driving shaft are eccentrically arranged; the driving shaft can be controlled to synchronously rotate in the same direction with the outer drill bushing or independently rotate in the opposite direction relative to the static outer drill bushing. Active anchoring and multiple buffering are combined, the sample integrity, the operation success rate and the automation degree of extraterrestrial hard rock coring are remarkably improved, and lossless capture and mechanical reliable breaking of a rock core are achieved.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Air motor assembly

An air motor apparatus for air drilling includes a filter assembly at an uphole end that receives compressed air and diverts a constant pressure portion through a filter to a vane motor and a remaining portion to an air hammer at a downhole end via bypass conduits. The apparatus includes one or more sensors for measuring drilling conditions, the sensors being connected to a communication device capable of transmitting the sensor data to the surface. The sensors and their wiring are shielded from high air speeds by bypass conduits and components of the filter assembly.
Owner:DIRECTIONAL AIR DRILLING INTERNATIONAL LLC

Rotating sleeve, rock drill and method

A rotating sleeve (17), a rock drill (6), and a method for manufacturing the rotating sleeve. The rotating sleeve is mountable around a shank adapter (8) of the rock drill and includes several internal teeth (22) with opposing first and second flank surfaces (32, 33) for transmitting rotation to the shank adapter (8). The internal teeth are provided with end reliefs (38, 39) including chamfers between the flank surfaces and end faces (34) of the teeth.
Owner:SANDVIK MINING & CONSTR OY

Square hole drilling pile hole forming apparatus and method

The embodiment of the application provides a square drill hole pile hole forming equipment and method, wherein the equipment comprises a drilling machine shell, a central shaft drill rod is vertically arranged in the drilling machine shell, a rotating driving device is connected to the top end of the central shaft drill rod, a rotary excavator drill bit is connected to the bottom end of the central shaft drill rod, helical blades are fixed to the outer wall of the central shaft drill rod, the rotating driving device drives the central shaft drill rod, drives the rotary excavator drill bit to rotate and drill to form a circular hole, an impact driving device is arranged at the bottom of the drilling machine shell, four impact drill bits are connected to the output end of the impact driving device, the impact drill bits are arranged at the four corners of the bottom periphery of the rotary excavator drill bit, the impact drill bits vertically move up and down, reciprocating rock breaking is realized, the circular hole is reamed, and finally a square hole is formed. The application can realize full-automatic mechanical drilling, realize square hole forming at one time, has wide application range, small environmental pollution and low overall equipment cost.
Owner:CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP CO LTD

Water well top head drill adapter

PendingUS20260168329A1Drilling drives
A system for imparting reciprocating vertical movement to a well pipe assembly includes a top head drilling unit having a drilling head configured to attach to an adapter. The adapter includes a top shaft threadably engaged with the drilling head. A right angle gear box includes an input gear, a first output gear, and a second output gear. The input gear is coupled to the top shaft and driven by rotational movement of the drilling head imparted on the top shaft. The output gears are engaged by the input gear. A pair of linkage arms are coupled to the output gears by a first output shaft and a second output shaft. The output shafts impart rotation about a horizontal axis to the pair of linkage arms. A support extends between the pair of linkage arms and is configured to move a plunger vertically with the pair of linkage arms.
Owner:FULTON FUSION INC

Apparatus, rock breaking machine and method of monitoring rock breaking machine

A hydraulic rock breaking machine and an apparatus and method for monitoring operation of same. The apparatus comprises at least one pneumatic sensor (S) for monitoring an inner space of the machine (10) and at least one control unit (CU) configured to receive and process the pneumatic sensing data.
Owner:SANDVIK MINING & CONSTR OY

Hydraulic control system for impact rotary drilling with underbit

The application provides a hydraulic control system for impact rotary drilling of a bedding machine, and belongs to the technical field of hydraulic control systems, and comprises a variable pump, a pilot oil source control valve group, a proportional multi-way valve, a shuttle valve I, a one-way pressure reducing valve, a shuttle valve II, a drilling machine pilot handle group, an impact rotary drilling machine, a bidirectional hydraulic lock and a drilling machine feeding oil cylinder. Through the hydraulic control system for impact rotary drilling of the bedding machine, the impact rotary drilling machine can be infinitely adjusted between double speeds, high-frequency impact or low-frequency impact operation can be flexibly used according to rock strata and geological conditions, the use range of the equipment is greatly improved, and the hydraulic control system can be used for high-hardness rock strata, weathered rock strata and hard and brittle geology. When low-frequency impact operation is performed, one-key linkage operation can be realized, that is, the drilling machine feeding, rotation and impact functions can be completed by operating the impact pilot handle.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1

High-efficiency rock breaking drill bit based on torsional impact

The application discloses a high-efficiency rock breaking drill bit based on torsional impact, and belongs to the technical field of rock breaking tools. The high-efficiency rock breaking drill bit comprises a supporting shell, the inside of the supporting shell is fixedly connected with a mounting base plate, and one side of the mounting base plate is fixedly connected with a servo motor. The application is provided with a gas cleaning assembly, which is connected with a reciprocating push rod and comprises a connecting baffle, a piston sleeve, a piston rod, a piston plate, an air inlet pipe, an air inlet check valve, an air outlet pipe and an air outlet check valve. The gas compression and discharge are driven by the reciprocating movement of the impact mechanism, intermittent air blowing and cleaning are realized on one side of the broken drill bit, the reciprocating impact movement and the gas cleaning function are coupled through structural design, the cleaning operation can be realized by the kinetic energy of the impact mechanism itself, an independent cleaning power source does not need to be additionally arranged, the system redundancy is reduced, the rock debris is effectively removed through the intermittence of the reciprocating movement, the friction and wear are reduced, and the state of the drill bit continuously and efficiently breaking rocks is maintained.
Owner:NORTHEAST GASOLINEEUM UNIV

Guide rail type rock drill for frozen bedrock construction

PendingCN120906462AIce drillingDrilling rodsDrill bitDrill hole
The invention discloses a guide rail type rock drill for frozen bed rock construction, and relates to the technical field of guide rail type rock drills, the guide rail type rock drill comprises a working vehicle, a fixed guide rail, a drill rod and a first fixing sleeve, the fixed guide rail and the first fixing sleeve are installed above the working vehicle, and the drill rod is arranged in the fixed guide rail and the first fixing sleeve; the fixed guide rail is used for driving the drill rod to rotate and meanwhile stretches out and draws back in the axis direction of the drill rod. The planet wheels rotate around the axis of the drill rod and rotate around the respective axes at the same time, it is ensured that the drill rod does not deviate during drilling in the later period, positioning is accurate, slipping of the drill rod is reduced, the drill rod does not slip, positioning is accurate, the drill rods supplement each other, and the breaking drill bit can be repeatedly stretched out and drawn back under the action of the telescopic spring; and when the crushing drill bit goes deep into the drilling limit, the drill rod continues drilling, and the crushing drill bit stops rotating.
Owner:CHINA COAL NO 3 CONSTR (GRP) CORP LTD +1

Coal face drilling device and method

The invention relates to the field of drilling, in particular to a coal face drilling device and method.The lower end of a drill rod is fixedly provided with a drill bit, the drill bit is internally provided with a high-pressure water chamber, the outer wall of the drill bit is provided with injection holes communicating with the bottom of the high-pressure water chamber, the drill rod is internally provided with a liquid inlet channel, and a vertically-extending transmission shaft is rotationally installed in the high-pressure water chamber; a water wheel is fixedly installed at the upper end of the transmission shaft, a movable column is vertically and slidably installed on the bottom wall of the driving cavity, the lower end of the movable column extends out of the drill bit and is provided with a hammer head, a transmission component connected with the transmission shaft and the movable column is arranged in the driving cavity, and the transmission shaft drives the movable column to vertically reciprocate through the transmission component when rotating; when the drill bit drills, high-pressure water is injected into the high-pressure water chamber through the liquid inlet channel, the water wheel is impacted by the high-pressure water and drives the transmission shaft to rotate, the curve groove in the cylindrical cam acts on the sliding pin and drives the sleeve to vertically move in a reciprocating mode, and the sleeve drives the hammer head to vertically move in a reciprocating mode through the movable column to continuously impact a coal seam.
Owner:HENAN INST OF ENG

A multi-dimensional composite impactor for drilling a well

The present application relates to a kind of multi-dimensional composite impactors for drilling, comprising: transmission stub; Tool housing, lower end is fixedly connected with transmission stub, tool housing has flow passage in it;Torsional impact component, it is located in the lower part of tool housing and includes pressure disc, center shaft fixed plate, hammer housing, center shaft, impeller, valve plate and hydraulic hammer;Axial impact component, it is located in the upper part of tool housing and is fixedly connected with torsional impact component by pressure disc, axial impact component includes shunt, nozzle, nozzle seat, hammer outer sleeve, valve sleeve, piston and impact hammer. By the multi-dimensional composite impactor of the present application, the rate of penetration of deep well ultra-deep well can be improved and the damage of stick-slip vibration to the drill string system can be reduced, the multi-dimensional composite impactor of the present application drives the movement of parts using drilling fluid, generates impact force in axial and torsional directions, thereby applying high-frequency axial-torsional coupled impact to the drill bit, improving rock breaking efficiency of the drill bit under impact load.
Owner:CHINA NAT PETROLEUM CORP +1

Hole bottom rock breaking device applied to extraterrestrial celestial body deep drilling

The invention provides a hole bottom rock breaking device applied to extraterrestrial celestial body deep drilling. The hole bottom rock breaking device comprises an ultrasonic generator, a cable, an electric slip ring, an ultrasonic transducer, a free mass block, a spiral drill rod and a drill bit. The ultrasonic generator generates ultrasonic energy and provides the ultrasonic energy to the ultrasonic transducer; the ultrasonic transducer is used for converting an input ultrahigh-frequency electric signal into ultrahigh-frequency mechanical vibration; the free mass block excites the ultrahigh-frequency ultrasonic vibration generated by the ultrasonic transducer to drive downwards to generate high-frequency collision with the spiral drill rod, so that the spiral drill rod and the drill bit move downwards to impact the rock, and the free mass block performs reciprocating high-frequency collision between the ultrasonic transducer and the spiral drill rod through reverse movement of impact counterforce; the spiral drill rod is connected with the bottom of the ultrasonic transducer, and energy generated by ultrahigh-frequency vibration of the ultrasonic transducer and high-frequency impact of the free mass block is transmitted downwards to the drill bit. And the drill bit acts the high-frequency-ultrahigh-frequency impact energy on the rock, and the rock is broken through continuous impact.
Owner:BEIJING SATELLITE MFG FACTORY

Drilling equipment and method for underground coal mine geological exploration

PendingCN121853912Aavoid it happening againMonitor movement speed in real timeEarth drilling toolsDrill bitsLow speedMining engineering
The invention belongs to the technical field of coal mine drilling, and particularly relates to drilling equipment and method for underground coal mine geological prospecting. The drilling equipment comprises a driving assembly, a console body is arranged on the driving assembly, a plurality of fixing assemblies are arranged below the driving assembly in an array mode, and a punching assembly is arranged on the driving assembly; the driving assembly comprises two bases, a plurality of fixing columns are fixedly connected to the upper end of the lower base in an array mode, and first electric telescopic rods are fixedly connected to the lower ends of the fixing columns. The pressure control assembly and the console are arranged, hydraulic oil flow division and pressure relief are achieved by adjusting the position of the sealing cover, sparks caused by too large impact force during hard rock stratum operation are avoided, and the underground anti-explosion requirement is met; the console monitors the moving speed of the drilling head in real time and intelligently adjusts the rotating speed of the motor and the telescopic mode of the hydraulic oil telescopic rod; a drilling head is protected in a low-speed and reciprocating impact mode in a hard rock stratum, efficient drilling is kept in a soft rock stratum, and different geological conditions are adapted.
Owner:SHANDONG JIUSHANG DIRECTIONAL DRILLING CO LTD

Flushing assembly

The invention relates to a flushing assembly which comprises a machine head, a flushing head arranged in the machine head, a bit shank copper sleeve arranged on the rear side of the tail of the flushing head and a machine head copper sleeve arranged on the front side of the head of the flushing head, and a bit shank is arranged in the machine head and sequentially penetrates through the bit shank copper sleeve, the flushing head and the machine head copper sleeve. The bit shank copper sleeve and the machine head copper sleeve are used for preventing radial deviation of the bit shank, a cavity is formed between the flushing head and the bit shank, the head and the tail of the flushing head are respectively provided with a U-shaped seal, a center hole extending towards the head of the bit shank is formed in a front-section rod body of the bit shank, the cavity is communicated with the center hole, and a flushing medium connector for providing flushing media for the cavity is formed in the machine head. The bit shank copper sleeve and the machine head copper sleeve are arranged in the machine head, radial deviation of the bit shank is prevented through the guiding effect of the bit shank copper sleeve and the machine head copper sleeve, the stability of the bit shank is improved, and meanwhile the service life of the bit shank is guaranteed.
Owner:PLOD (CHANGZHOU) HYDRAULIC TECH CO LTD

Sampling drill for low gravity environments

A drill, system, and method is provided. The drill includes a translation mechanism and an auger mechanism. The auger mechanism is movably coupled to the translation mechanism, the drill mechanism having a housing with an auger bit slidably disposed therein, the auger mechanism further having a collection housing coupled to one end, the auger bit being configured to extend through the collection housing during operation, the collection housing having a hollow interior.
Owner:HONEYBEE ROBOTICS LTD

Rotary drilling all-in-one machine and using method

The invention discloses a rotary drilling all-in-one machine and a using method, and belongs to the technical field of rotary drilling, the all-in-one machine comprises a frame, a rotary platform, a slewing bearing and a drilling mechanism, and the drilling mechanism is installed on the frame through the slewing bearing and can be driven by the rotary platform to integrally and horizontally rotate; the drilling mechanism comprises a first outer slide way capable of swinging in a pitching mode, a first inner slide way arranged in the first outer slide way in a sliding mode, a second outer slide way rotationally arranged at the front end of the first inner slide way, a second inner slide way arranged in the second outer slide way in a sliding mode and a pile hammer installed on the second inner slide way. And a plurality of driving devices for driving horizontal rotation, pitching swing, two-stage stretching and retracting, tail end swing and the pile hammer to work are further arranged. Through multi-degree-of-freedom cooperative movement, large-range and multi-angle accurate positioning and flexible operation of the pile hammer in a three-dimensional space are achieved, and the multi-degree-of-freedom pile hammer has the advantages of being compact in structure, good in rigidity, convenient and fast to operate, high in capacity of adapting to complex working conditions, high in construction efficiency and the like.
Owner:XUZHOU GAILI CONSTR MASCH CO LTD

Vibration or percussive pulse generating apparatus for construction machine and method of operating the same

The invention relates to a device for generating vibrations for a construction machine, comprising a housing, a piston which is reversibly movable back and forth in a working chamber in the housing between a first reversal point and a second reversal point, a pressure fluid supply through which pressure fluid can be introduced and expelled into the working chamber in the region of the first reversal point and the second reversal point via at least one controllable control valve, wherein the piston can be set into a reversing motion to generate the vibrations, and a control unit which is designed to control the at least one control valve and through which the movement of the piston in the working chamber can be controlled and changed.According to the invention, the control unit is designed to control the piston in a first operating mode to generate vibrations and in a second operating mode to generate impact impulses, wherein a striking surface is formed on at least one end side of the working space, against which the piston strikes when reaching at least one reversal point to generate an impact impulse.
Owner:EURODRILL GMBH

Drilling information detection device and method

To accurately grasp drilling information such as an actual drilling position and angle, and to support an operation of an automatic explosive loading device.SOLUTION: A drilling information detection device 1 detects drilling information such as a position and angle of a drilled hole 3 formed by a drilling device 2. It comprises a guide cell 21 supported so as to be movable back and forth by an articulated boom 20, a base end rod 22 held by the guide cell 21, and a flexible drilling information detection probe 24 connected to a tip side of the base end rod 22 via a measurement attachment 23 with a built-in sensor, and inserted into the drilled hole 3 to detect drilling information.SELECTED DRAWING: Figure 7
Owner:TODA CORP

Rock drilling rotary percussion device with adjustable impact energy and method of operation thereof

The application discloses an impact energy adjustable rock drilling rotary percussion device and a working method thereof, and solves the problems of small adjustable range of impact frequency and impact energy of a rock drilling device in the prior art and easy jamming of a drill rod. The impact energy adjustable rock drilling rotary percussion device comprises an impact piston and a drill rod tail, further comprises an electric impact mechanism and a hydraulic impact mechanism which are arranged in parallel and used for driving the impact piston to reciprocate, the tail of the drill rod tail is correspondingly connected with the impact end of the impact piston through a rotary buffer assembly, the front part of the drill rod tail is connected with a rotary impact mechanism, and the rotary buffer assembly and the rotary impact mechanism are matched to drive the drill rod tail to perform pulsed rotation around the central axis. Compared with the prior art, the electric impact mechanism and the hydraulic impact mechanism with adjustable working modes are adopted, the adjustable impact energy is realized, the problems of single impact frequency, small impact energy range and low rock drilling efficiency of the rock drilling device in the prior art are solved, the rotary buffer assembly and the rotary impact mechanism are matched to drive the drill rod tail to perform pulsed rotation around the central axis, and the problem of easy jamming of the drill rod in the prior art is solved.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

A multi-rod docking drilling device, control system and control method

The present invention relates to the technical field of automated drilling, and more specifically, to a multi-rod docking drilling device, control system, and control method. The device includes a frame, a drilling mechanism, and a clamping mechanism disposed on the frame. The drilling mechanism includes a feed box, a feed mechanism, a rotary mechanism disposed on the feed box, and an impact mechanism. The output end of the rotary mechanism is connected to a drill tool via a drill pipe connector. The device also includes a quick-connect connector and a quick-connect mechanism. The top of the quick-connect connector is fixedly connected to the drill pipe connector, and the bottom of the quick-connect connector is detachably connected to the drill tool. The quick-connect mechanism is installed in the quick-connect connector and is clamped to the drill tool. The quick-connect connector allows for rapid connection and installation of the drill tool, and the quick-connect mechanism allows for reliable installation of the drill tool, thereby improving drilling efficiency and ensuring smooth drilling operations.
Owner:GUANGDONG UNIV OF TECH

Anchoring drilling machine for regreening of stone mountain

The invention relates to the technical field of stone mountain ecological restoration, in particular to an anchoring drilling machine for stone mountain greening, which comprises a mounting table, an expansion piece is fixedly connected to the bottom of the mounting table, a fixed handle is fixedly connected to the bottom of the expansion piece, and a matching part is arranged on the right side of the fixed handle; the matching part comprises a first supporting plate, the top of the first supporting plate is fixedly connected with a protection ring, and the top of the protection ring is fixedly connected with a cover plate. According to the invention, drilling, irrigation and ecological restoration functions are integrated, a double-cam linkage mechanism is adopted to drive an impact-rotation composite drilling system, and precise reciprocating motion is realized through a closed-loop turn-back groove design, so that the drill bit has rock crushing and cutting functions, and the hard rock stratum drilling efficiency is remarkably improved; the modular structural design adapts to different gradients through the adjustable expansion piece, and the rigid frame and the three-level protection system effectively restrain operation vibration and gravel impact.
Owner:SHAOXING ANSHENG BLASTING ENG CO LTD

Drilling device for geological hidden danger treatment construction of rock high slope and construction method

The invention relates to the technical field of slope construction, and discloses a rock high slope geological hidden danger treatment construction drilling device and a construction method.The rock high slope geological hidden danger treatment construction drilling device comprises a machine body of a jumbolter and a movable base arranged on the slope surface, and one side of the upper surface of the base is rotationally connected with the lower surface of the machine body; a second hydraulic rod is rotationally connected to the other side of the upper surface of the base, the driving end of the second hydraulic rod is rotationally connected with the machine body through a shaft, a first hydraulic rod is fixedly connected into the machine body, the driving end of the first hydraulic rod is fixedly connected with a U-shaped sliding base, and the sliding base is slidably connected with the machine body. A drill rod is rotationally connected to the center of the sliding base, and a drilling motor is fixedly connected to the top of the sliding base. The impact head rotates downwards under the action of self gravity and knocks the chiseling rod, so that the chiseling rod drives the chiseling head to extend out of the drill bit to chiseling a rock stratum, the effect of chiseling and crushing the rock stratum is achieved, and the chiseling effect is better compared with the prior art.
Owner:BEIJING ZHONGKELI BLASTING TECH & ENG CO LTD

Rotating sleeve, rock drill and method

A rotating sleeve (17), a rock drill (6), and a method for manufacturing the rotating sleeve. The rotating sleeve is mountable around a shank adapter (8) of the rock drill and includes several internal teeth (22) with opposing first and second flank surfaces (32, 33) for transmitting rotation to the shank adapter (8). The internal teeth are provided with end reliefs (38, 39) including chamfers between the flank surfaces and end faces (34) of the teeth.
Owner:SANDVIK MINING & CONSTR OY

Method and apparatus for installing ground anchor

To provide a construction method and a construction device of a ground anchor capable of surely cutting the whole range in an outer casing.SOLUTION: This construction method of the ground anchor uses a rotary percussion type excavator having a cylindrical outer casing 12 for excavating the ground by rotating around an axis, and a shaft-like inner rod 14 arranged in the outer casing 12 and cutting the inside of the outer casing 12 by a cutting part 18 of the tip by rotating around the axis. A tip side 22 of the inner rod 14 is formed in a dogleg shape when viewed from a direction orthogonal to an axis C2 of a body 24 of the inner rod 14, and the whole range in the outer casing 12 is cut by the tip side 22 by rotating the body 24 around the axis C2.SELECTED DRAWING: Figure 1
Owner:SHIMIZU CORP