195results about "Drilling with mechanical conveying" patented technology

A rotating check valve is disclosed for improved debris collection within a wellbore. The check valve can be part of a debris removal tool that includes a motor, pump, gearbox, bailer, milling bit, the check valve, rotational shafts. On its uphole end, the check valve can be coupled with the bailer such that the check valve can rotate relative to the bailer. Also on the uphole end, the check valve can be rotationally coupled to a shaft that passes through the bailer and couples with the gearbox. On the downhole end, the check valve can be rotationally coupled to the milling bit. The check valve can include a torque transfer mechanism that transfers torque generated by the motor and gearbox to the milling bit. The check valve can include a unidirectional flow control mechanism that restricts the flow of fluid and debris to the uphole direction.

The invention discloses a hydraulic ring geological survey drilling rig which comprises a supporting seat and further comprises a drilling rod, a supporting barrel is vertically arranged in the supporting seat, the drilling rod is arranged in the supporting barrel in a sliding mode, a rotating rod is arranged in the drilling rod, and a hydraulic ring is arranged in the rotating rod. A spiral blade used for conveying soil is arranged outside the rotating rod, a drill bit is arranged at the bottom of the drill rod, the bottom end of the rotating rod is connected with the drill bit, a connecting pipe is arranged in the fixing cylinder, a first fixing groove is formed in the top of the drill rod, and a plurality of detachable connecting pipes are arranged on the drill rod. The drill rod can be lengthened according to the drilling depth, the transmission mechanism drives the transmission rod and the rotating rod to rotate, the rotating rod drills soil by driving the drill bit to rotate, the rotating rod and the transmission rod convey the soil by driving the spiral blades to rotate, and soil collection is simpler.

The invention relates to the technical field of building construction foundation pit excavation, and discloses a foundation pit excavation drilling device and method for building construction, the device comprises a drilling assembly, the bottom end of the drilling assembly is slidably connected with reaming assemblies in an array mode, a hydraulic driving part is arranged in the drilling assembly, and a rotating driving part is arranged at the top end of the drilling assembly; the top end of the drilling assembly is rotationally connected with a guide assembly, a hydraulic cylinder is fixedly installed on the surface of the guide assembly, and a muck guide part is fixedly installed on the inner side of the bottom end of the guide assembly. When the drill bit drills to a preset depth, an electric control valve is closed, hydraulic oil is conveyed into an oil storage barrel through an oil injection pipe, so that the hydraulic pressure in a hydraulic cavity is increased, a piston plate is driven to move downwards, a sliding column extrudes a sliding block downwards, and a crushing blade extends out of the drill bit to be matched with rotation of the drill bit to enlarge the diameter of a drilled hole; and an assembly body of the drill bit and the crushing blade moves upwards while rotating, so that the purpose of conveniently reaming after drilling is achieved.

The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile drilling device for a pump station and a construction technology, and the cast-in-place pile drilling device comprises a drilling mechanism, a slurry recycling mechanism, a supporting mechanism and a tamping mechanism. According to the device, when the sliding plate descends, the first one-way rotating plate is driven to descend together, clay between the sliding plate and the soil discharging shell can be scraped and pushed to the position below the drilling barrel through the first one-way rotating plate, when the clay is discharged into the bottom of a hole, external air can be discharged into the space between a drill bit and the bottom of the hole together, and therefore the negative pressure strength can be reduced; a sliding plate continues to press downwards, clay can be compacted layer by layer through a compacting plate, when the sliding plate ascends, blocking is conducted through a second one-way rotating plate, and therefore the situation that the soil is backfilled into a soil discharging shell can be prevented, clay backfilling and tamping can be conducted on the collapsed hole wall at the first time, the collapse area is prevented from being increased, and the construction efficiency is improved. Emergency treatment can be carried out when hole wall collapse and hole wall hole shrinkage occur through the tamping mechanism, and it is guaranteed that follow-up drilling construction is recovered as soon as possible.

The invention provides a building foundation drilling device, and belongs to the technical field of building construction. Comprising a crawler, an overturning table is arranged at the top of the crawler, a sliding rail frame is arranged at the top of the overturning table, and a driving motor is arranged on the sliding rail frame; the device further comprises a drilling assembly, the drilling assembly is installed at the output end of the driving motor, the drilling assembly is used for drilling a foundation, the drilling assembly comprises a rotating disc, the rotating disc is installed at the output end of the driving motor, and multiple sets of telescopic rods are distributed at the bottom end of the rotating disc at equal angles. The bottom end of the rotating disc is connected with a clamping device. By arranging the collecting assembly, drilling chips can be efficiently collected, the personal safety of operators cannot be damaged, meanwhile, it is avoided that a large number of gravel chips are accumulated at the position of a pile hole opening, so that a foundation pile hole collapses, it is avoided that in the punching process, due to the fact that chips are not discharged in time, a drill bit is blocked, and the working efficiency is improved.

The invention discloses a rock-soil sampler for geological survey, and belongs to the technical field of geological survey, the rock-soil sampler comprises a drill bit module, drill spindle modules and a drill arm module, a plurality of drill spindle modules are arranged between the drill bit module and the drill arm module, each drill spindle module comprises a spindle body, an insertion cylinder and a locking hole, and the insertion cylinder is arranged at one end of the spindle body; the inserting cylinder is embedded in the shaft body, a plurality of locking holes are formed in the inner wall side of the inserting cylinder, the other end of the shaft body is fixedly connected with a locking assembly, the locking assembly comprises a locking cylinder and locking pins, and the locking pins matched with the locking holes are arranged on the outer wall side of the locking cylinder in a sliding mode; the plurality of detachable drill spindle modules are arranged between the drill bit module and the drill arm module, so that the sampling depth of a drilling drill bit can be adjusted according to an actual exploration environment, and meanwhile, all depth positions in a drill hole can be sampled at the same time by matching with the triggering assembly, so that layered samples of a rock-soil structure are obtained.

The invention relates to the technical field of underground coal mine geological exploration, in particular to underground coal mine geological exploration reaming equipment which comprises four supporting legs, a supporting plate is welded to the tops of the four supporting legs, two hydraulic cylinders are fixed to the top of the supporting plate, a link plate is fixed to the outer sides of the output ends of the two hydraulic cylinders, and a cylinder is fixed to the inner side of the link plate. By adopting the drilling-out assembly, the adjusting assembly and the power assisting assembly, punching, reaming and soil discharging can be conducted at the same time, the power assisting frame can be used for assisting soil transportation of the auger frame, compared with the prior art, the punching and reaming cost can be reduced, soil discharging can be conducted at the same time, the working efficiency is improved, and the practicability is high. In addition, assistance can be provided for the auger frame to transport soil, the efficiency of the auger frame to discharge the soil is improved, pressure and resistance caused by gradual accumulation of the soil to the reaming device are reduced, and the reaming and hole forming efficiency is improved.

The invention relates to the technical field of mining equipment, and discloses mining equipment for geothermal energy development, which comprises a rack and an underground mining assembly, the underground mining assembly comprises a mining drill bit and a telescopic drill rod, the mining drill bit is located at the bottom end of the telescopic drill rod, a gap exists between the mining drill bit and the telescopic drill rod, and the top end of the telescopic drill rod is connected with the rack. A containing cavity used for containing a driving device is formed in the bottom end of the telescopic drill rod, the driving device is arranged in the containing cavity, and the driving end of the driving device is connected with the mining drill bit through a driving shaft penetrating out of the containing cavity. A scraper assembly is further arranged outside the telescopic drill rod and is in transmission connection with the driving device through a transmission assembly, and when the driving device drives the mining drill bit to conduct rotary mining, the transmission assembly drives the scraper assembly to rotate outside the telescopic drill rod so as to scrape and clean the well wall. And the geothermal drilling exploitation efficiency is greatly improved.

Disclosed is a drilling apparatus for road construction blasting, comprising: a work platform, wherein a plurality of support legs are provided below the work platform; a material collection box, capable of being raised and lowered, arranged below the workbench, and detachably connected to the work platform, a material guide hole being formed in the bottom wall of the material collection box; and a material guide cylinder, wherein the material guide cylinder is vertically inserted into the material guide hole and is detachably connected to the material collection box, a spiral drill rod is rotatably inserted into the material guide cylinder, the top of the spiral drill rod is inserted into the material collection box and rotatably connected to the top wall of the material collection box, the spiral drill rod is driven by a driving motor located at the top of the material collection box to rotate, the bottom of the spiral drill rod extends out of the material guide cylinder, the spiral drill rod extending out of the material guide cylinder is divided into a feeding portion and a drilling portion from top to bottom, the outer diameter of the feeding portion is the same as the outer diameter of the spiral drill rod located in the material guide cylinder, and the outer diameter of the drilling portion is not smaller than the outer diameter of the material guide cylinder. The present invention can effectively prevent drilling waste from piling up or spilling around the drilling area during drilling, avoid the waste from covering surrounding drilled holes, and reduce flying dust.

The invention relates to the field of geotechnical engineering equipment, and discloses a geotechnical engineering investigation rock sample collecting device which comprises two bases, the top ends of the bases are fixedly installed on the two sides of the bottom end of a supporting plate correspondingly, and vertical rods are fixedly installed on the two sides of the top end of the supporting plate correspondingly; a threaded rod is movably mounted in the middle of the bottom end of the transverse frame, the bottom end of the threaded rod is movably mounted in the middle of the top end of the supporting plate, the outer diameter of the threaded rod is in threaded connection to the middle of the rear end of the box body, an outer cylinder is movably mounted at the inner bottom of the box body, a middle cylinder is movably mounted in the inner middle of the box body, and the bottom end of the middle cylinder penetrates through the outer cylinder and extends to the position below the outer cylinder; and an inner cylinder is mounted in the middle cylinder through a positioning bearing. Core completeness is guaranteed through fracture prevention and buffer clamping design, pollution is reduced through an efficient cooling chip removal system, reliable operation of equipment is achieved in combination with overload protection and a stable structure, and sampling efficiency and sample quality are remarkably improved.

The invention discloses a continuous drilling machine for mining industry exploitation, and relates to the technical field of mining equipment, the continuous drilling machine for mining industry exploitation comprises a track driving assembly, a large arm is fixedly installed on the front portion of the top of the track driving assembly, and a drilling mechanism is movably installed between arm bodies on the two sides of the large arm; the device comprises a drilling mechanism, an anti-backfill cleaning mechanism is installed at the front end, close to the bottom, of the drilling mechanism, the anti-backfill cleaning mechanism comprises an anti-backfill assembly and a cleaning limiting assembly, a limiting supporting mechanism is movably installed at the bottom of the drilling mechanism, the drilling mechanism comprises an auger drill rod, and a drill bit is fixedly installed at the bottom of the auger drill rod through a bolt. According to the device, blockage can be removed through drill retreating, blades of the auger drill rod are cleaned, meanwhile, broken stones and soil residues conveyed to the ground are prevented from being accumulated around a well opening, and the broken stones and the soil residues are backfilled into a drilled well again in the drill retreating process.

The invention discloses a clay layer screw-in device for geological drilling, and belongs to the technical field of drilling, the clay layer screw-in device for geological drilling comprises a bottom plate, a stand column, a lifting unit, a mounting seat, a rotating shaft and a spiral sheet; and the reciprocating telescopic unit is arranged on the mounting seat and is used for driving the upper end of the spiral sheet to stretch out and draw back in a reciprocating manner when the rotating shaft rotates. According to the drilling device, when the rotating shaft rotates, the spiral piece is driven to rotate, so that the spiral piece is matched with the rotating shaft to drill in a daub layer on the earth surface so as to form a drill hole in the earth surface, and in the drilling process, the reciprocating telescopic unit drives the upper end of the spiral piece to stretch up and down in a reciprocating mode; in this way, the periphery of the spiral piece can generate a scraping effect on the hole wall of the drilling hole, the roundness of the drilling hole can be improved through scraping, meanwhile, under the action of scraping force, daub on the wall of the drilling hole is scraped off, and the daub is conveyed to the earth surface through rotation of the spiral piece.

The invention relates to the field of soil layer drilling equipment, in particular to a rotary drilling rig for road construction, which comprises a drilling tool, the drilling tool comprises a drilling barrel, an inner spiral drill bit and an outer spiral drill bit, the drilling barrel can rotate around the axis of the drilling barrel, the inner spiral drill bit is coaxially and rotatably arranged in the drilling barrel, and the inner spiral drill bit comprises a first spiral plate and a central barrel; the number of the first spiral plates and the number of the center cylinders are both multiple. An inner spiral drill bit is arranged, when the inner spiral drill bit is in a drilling state, a plurality of first spiral plates are connected to form a coherent auger spiral, at the moment, under the action of the auger spiral, soil is conveyed into a drill barrel through the auger spiral, and after the drill barrel is full of the soil, the inner spiral drill bit is switched to a soil discharging state; at the moment, the multiple first spiral plates are all located on the same side in the circumferential direction of the drilling barrel, that is, the overlapping area of the first spiral plates in the circumferential direction of the drilling barrel reaches the maximum, in this way, the soil falling path is greatly increased, and soil in the drilling barrel can be poured out from the interior of the drilling barrel more easily.

The invention discloses a low-power-consumption beat traveling wave driving method for an ultrasonic-assisted drilling sampling device, which comprises the following steps: a driving control system gives a group of high-frequency sine wave signals and a group of low-frequency sine wave signals, and the high-frequency sine wave signals and the low-frequency sine wave signals are superposed to form new beat frequency wave signals; an ultrasonic transducer is driven through a beat frequency signal, and an electric ceramic piece of the ultrasonic transducer is subjected to mechanical deformation so as to excite longitudinal vibration of an ultrasonic drill; the maximum amplitude of beat traveling waves generated by superposition of two groups of sine waves is increased under the condition that the average power of the ultrasonic drill is not changed, so that the efficiency of ultrasonic-assisted particle movement is further improved, the critical rotating speed of a main shaft is reduced, the sampling efficiency of soil particles is improved, and the energy consumption of the whole system is reduced; in addition, a passive damping section is arranged at the non-excitation end of the ultrasonic drill rod, traveling waves transmitted from the excitation end are absorbed, and standing waves are prevented from being generated.

An in-situ detection robot and method for geological information without disturbance of in-situ stress, including a sleeve, a drilling unit set at the top of the sleeve, a dumping unit set inside the sleeve, and a support propulsion unit is set outside the sleeve, the top of the dumping unit extends into the drilling unit, a detection unit is set between the drilling unit and the support propulsion unit, and the robot tail is connected to a control unit; the dumping unit is used to discharge soil drilled from a hole of the drilling unit to the ground, the support propulsion unit is used to realize support, the detection unit is used to detect geological information of surrounding environment of the robot, the control unit is used to control the drilling unit, the support propulsion unit and the detection unit, and the control unit collects and processes the geological information.

The invention relates to the technical field of positioning and deep digging for buildings, in particular to positioning and deep digging integrated rotary digging equipment for buildings, which comprises a lifting column, the outer surface of the lifting column is sleeved with a lifting seat, one end of the lifting seat is fixedly connected with a driving frame, and one end of the driving frame is fixedly connected with a mounting seat. A mounting groove is formed in the mounting seat, a top connecting seat is fixedly connected to the top end of the lifting column, a cushioning sleeve seat is fixedly connected to the top end of the top connecting seat, and a motor frame is fixedly connected to the top end of the cushioning sleeve seat. Through the arrangement of the lifting column, the motor frame, the driving motor, the crushing frame, the drill bit seat, the first butt joint ring, a sealing rubber ring, a feeding grid, a drilling head and a drill bit body, more efficient internal stone drilling and conveying operation of the integrated rotary excavating equipment can be carried out by the equipment; a worker firstly starts a driving motor in a motor frame, so that the driving motor starts all rotating equipment from the center of the equipment.

A rotating check valve (100) is disclosed for improved debris collection within a wellbore. The check valve can be part of a debris removal tool that includes a motor (410), pump (420), gearbox (430), bailer (440), milling bit (460), the check valve, rotational shafts. On its uphole end, the check valve can be coupled with the bailer such that the check valve can rotate relative to the bailer. Also on the uphole end, the check valve can be rotationally coupled to a shaft that passes through the bailer and couples with the gearbox. On the downhole end, the check valve can be rotationally coupled to the milling bit. The check valve can include a torque transfer mechanism (102) that transfers torque generated by the motor and gearbox to the milling bit. The check valve can include a unidirectional flow control mechanism (216) that restricts the flow of fluid and debris to the uphole direction.

The present invention discloses a ground excavation drilling device, which is applied in the field of seismic exploration, and comprises a drilling unit and a transport unit arranged above the drilling unit, wherein the drilling unit comprises a drill bit fixedly arranged at the end of a drill rod and a driving motor connected to the drill rod, and the transport unit comprises a conveyor belt arranged above the driving motor and a one-way blade fixedly arranged on the conveyor belt, wherein the conveyor belt transports the crushed soil turned up by the drill bit below the double-layer wellbore in a double-layer wellbore and sends it to the wellbore mouth of the double-layer wellbore to throw out the crushed soil; the present invention has a novel design and a reasonable structure, can realize rapid excavation, fast hole-forming speed, greatly improves the field construction efficiency, and can also extend the double-layer wellbore and the conveyor belt with the one-way blades as needed to smoothly realize excavation, and if hard and difficult-to-crush objects are encountered during the well excavation process, the inclined wellbore can be connected to slightly change the drilling direction to meet the construction needs.

The invention discloses a rotary excavating square pile drilling tool, and relates to the technical field of square pile drill bits, the rotary excavating square pile drilling tool comprises a box body, excavating wheels are symmetrically and rotatably connected to the two sides of the box body, a soil removing mechanism is rotatably connected to the side, located between the two excavating wheels on the same side, of the box body, and the soil removing mechanism abuts against the excavating wheels and is used for removing soil layers attached to the excavating wheels; the soil removing mechanism is used for removing a soil layer attached to the excavating wheel, a drill bit on the excavating wheel can make full contact with a to-be-excavated soil layer, the situation that the excavating capacity of the soil layer is reduced is avoided, the working procedures of drill lifting and cleaning are reduced, the working efficiency is improved, and the working efficiency is improved. And the arranged soil discharging mechanism discharges soil obtained after rotary excavating in time, the situation that the soil obtained after rotary excavating is accumulated in the square pile is avoided, the rotary excavating resistance of the drilling tool is increased, and meanwhile the situation that the excavating capacity is reduced due to the fact that the soil adheres to the excavating wheel again is avoided.

The rock body drilling device for mountain protection net installation disclosed by the application belongs to the technical field of rock body drilling and comprises a climbing frame, a connecting frame arranged on one side of the climbing frame, a connecting head connected to the middle part of one side of the connecting frame, a traction rope connected to the connecting head, a blocking and inserting mechanism arranged on one side of the upper part of the climbing frame, and a moving platform arranged on the climbing frame. Symmetrical support rods are arranged on the moving platform, the top of each support rod is connected with a top plate, a rotating and replacing mechanism is arranged on the top plate, drilling mechanisms and ash discharging mechanisms are respectively arranged on the two sides of the rotating and replacing mechanism. The drilling mechanisms can be automatically drilled to a certain depth by flushing and lubrication under the control of a control mechanism, the rotating ring mechanism is automatically controlled to be replaced by the ash discharging mechanisms to perform rapid ash discharging operation in the drilled holes, the drilling depth, the continuity of the inner wall of the drilled holes and the cleanliness in the drilled holes can be effectively guaranteed, the drilling quality is high, and the operation is more convenient and safe.

The invention discloses a drilling and high-pressure grouting integrated device which comprises a drill rod, a drill bit, a drilling machine, a mud discharging device and a grouting device, a grouting pipeline is arranged in the drill rod, a spiral conveying belt is welded to the outer wall of the grouting pipeline, the outer side of the spiral conveying belt is welded to the inner wall of the drill rod, the drill rod is in threaded connection with the drill bit, and the drill bit is connected with the drilling machine. A detachable connecting device is arranged at the end, away from the drill bit, of the drill rod. When the device is used for drilling, the spiral conveying belt is connected with the sludge discharging device through the detachable connecting device. When the device is used for grouting, the grouting pipeline is connected with the grouting device through the detachable connecting device. The conveying belt and the grouting pipeline are simultaneously arranged in the drill rod of the device, the drilling function and the grouting function are integrated on the same drill rod, one rod has two purposes, the number of equipment and conversion of construction procedures are reduced, the construction efficiency is improved, independent drilling equipment and independent grouting equipment do not need to be arranged respectively, and the space of a construction site is saved.

The invention discloses a piling device for municipal engineering construction, and relates to the technical field of municipal construction. Comprising an engineering vehicle, a roll-over stand set, a traction mechanism and a rotary piling assembly, the roll-over stand set is arranged on the vehicle to bear the piling assembly to turn over, and the traction mechanism controls the piling assembly to move axially. The device further comprises a discharging module, a locking module and an air blowing module. The discharging module is arranged on the periphery of the overturning frame group in a sleeving manner, and is matched with the external expansion cylinder through a guide cylinder to form a closed sludge discharging channel and directionally guide sludge; the air blowing module is connected with the discharging module, and air flow is used for assisting in sludge discharging and dissipating heat of the heating part of the rotary piling assembly. The problems that in the prior art, due to sludge accumulation and drill pasting, the power load is large, and equipment is prone to overheating faults are effectively solved, it is guaranteed that the operation site is clean and tidy, the piling efficiency is greatly improved, and the service life of the equipment is greatly prolonged.

The present invention relates to the technical field of cast-in-place pile construction, and specifically to a cast-in-place pile drilling device and construction process for a pumping station, including a drilling mechanism, a mud recovery mechanism, a support mechanism, and a filling and pressing mechanism. In the present invention, when the sliding plate descends, it drives the one-way rotating plate one to descend together. The one-way rotating plate one can scrape and push the clay between the sliding plate and the soil discharge shell to the lower part of the drill cylinder. When the clay is discharged to the bottom of the hole, it will discharge the external air into the space between the drill bit and the bottom of the hole together. Therefore, the negative pressure intensity can be reduced, and further shrinkage of the hole wall can be avoided. When the sliding plate continues to press down, the clay can be compacted layer by layer through the compaction plate. When the sliding plate rises, it is blocked by the one-way rotating plate two, so that the soil can be prevented from backfilling into the soil discharge shell. Therefore, the collapsed hole wall can be backfilled and tamped with clay in the first time to prevent the increase of the collapse area. The filling and pressing mechanism can be used for emergency treatment when the hole wall collapses and the hole wall shrinks, ensuring that the drilling construction can be resumed as soon as possible subsequently.

Cutting tool for manufacturing a threaded pile in soil Cutting tool (20) for manufacturing a threaded pile (P), comprising a cylindrical hollow core (22); a helical thread (24); a plunger tube (30) movable in translation inside said hollow core and comprising a lower tube portion (31) having a lateral wall (34) in which is formed an inclined groove as well as an injection orifice (35);and a grooving device (50) comprising a grooving tooth (52) movable between a retracted position and a deployed position, and an engagement portion (60), the cutting tool being configured to move from a first configuration to a second configuration by the relative translational movement of the plunger tube with respect to the hollow core, along said longitudinal direction, said engagement portion being configured to slide inside said groove, whereby the grooving tooth is moved between the retracted position and the deployed position, when the cutting tool is brought from the first configuration to the second configuration. Figure for the abbreviation: Fig. 1.;

The present invention relates to a cuttings collector for obtaining drill cuttings from subterranean wellbores, at least comprising: a) a cuttings collector stem provided with a double helix cutter acting as a conveyor screw having two transport paths, b) an external wall surrounding one of the two transport paths and a lower wall closing said one transport path at the lower end thereof, c) the cuttings collector stem, at the upper end thereof, being provided with a top sleeve having an opening and closing arrangement so that cuttings that are collected can be guided into a desired transport path.

The invention relates to the technical field of geological survey sampling equipment, in particular to geological content sampling equipment for geological surveying and mapping, which comprises a mounting seat, a drilling pipe is mounted at the lower end of the mounting seat, a drill bit is rotatably connected to the lower end of the drilling pipe, and a plurality of mounting grooves and a plurality of contraction grooves are equidistantly formed in the drilling pipe. The multiple sampling boxes are rotatably connected in the mounting groove, the multiple rotating cylinders and the driven cylinders are rotatably connected in the drilling pipe, the limiting rods are slidably connected in the rotating cylinders and the driven cylinders, first springs are mounted between the limiting rods and the rotating cylinders and between the limiting rods and the driven cylinders, limiting grooves are formed in the upper ends and the lower ends of the sampling boxes, and one ends of the limiting rods are located in the limiting grooves; according to the soil sampling device, through the action of the sampling assembly, soil dug in the sampling boxes can be isolated, the soil is prevented from making contact with soil at other positions in the land, and the accuracy of subsequent sampling detection of soil at different depths is guaranteed.

The application provides a tunnel rescue drilling machine, which comprises a rack, a casing device and a casing driving device arranged on the rack, the casing device comprises an inner casing and an outer casing which are coaxially sleeved, a cutting ring cutter head is rotationally connected to the outer casing and connected with the inner casing, a rotary driving mechanism of the casing driving device is connected with the inner casing for driving the rotation of the cutting ring cutter head, and a retreat stopping device is arranged on the rack. The cutting ring cutter head is arranged on the non-rotating outer casing, the rotation of the cutting ring cutter head is driven by the inner casing, and the retreat stopping device is added, so that the problem of insufficient force of the drilling machine after offsetting the drilling process in the prior art is solved; the cutting ring cutter head is selectively rotated according to different conditions, so that the abnormal body in the collapse body can be conveniently coped with and the complex geological conditions can be handled; and the whole machine has a compact structure and is suitable for small space rescue scenes.

The invention relates to a cuttings collector for obtaining cuttings from a subterranean wellbore, comprising at least: a) a cuttings collector rod provided with a double helix tool serving as a transfer screw having two conveying paths, b) an outer wall surrounding one of the two conveying paths, and a lower wall surrounding the other of the two conveying paths, c) the upper end of the drill cuttings collector rod is provided with a top sleeve having an opening and closing arrangement such that the collected drill cuttings can be directed into the desired conveying path.

To provide suitable hybrid excavation Shimoiwa.SOLUTION: A method for utilizing a millimeter wave drilling apparatus (300) is provided. The method can include monitoring a permeability of a first portion of a borehole of a well while forming the borehole using a drilling apparatus including a drill bit for mechanically removing material from within the borehole. The method can also include determining to utilize a millimeter wave drilling apparatus including a waveguide (430) configured for insertion into the borehole based at least on the permeability of the borehole being below a permeability threshold. The method can further include, in response to the determining, forming a second portion of the borehole utilizing the millimeter wave drilling apparatus. A method for controlling downhole pressure of a well is also provided. An associated system for performing the method is also provided.SELECTED DRAWING: Figure 3

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.