3040results about "Percussion drilling" patented technology

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

The invention relates to the field of shield tunneling, and discloses a shield tunneling control method and system based on a rock-soil particle motion trail, and the method comprises the steps: fusion deployment of various types of high-precision sensors, intelligent anti-noise data collection and preprocessing, precise physical model construction, efficient numerical simulation optimization, and multi-parameter comprehensive detection and correlation analysis. And real-time data-driven adaptive control model construction, control instruction rapid generation and transmission, closed-loop feedback and continuous optimization are realized. According to the method, multiple links including fusion deployment of multiple types of high-precision sensors, intelligent anti-noise processing, physical model construction and the like are covered, all the links have a synergistic effect, data can be accurately obtained, data quality can be guaranteed, a simulation foundation can be provided, comprehensive evaluation, intelligent control and rapid instruction transmission can be achieved, continuous optimization is achieved through closed-loop feedback, and the method is suitable for large-scale popularization and application. And finally, the construction level in all aspects is improved, and complex engineering requirements are met.

The present invention relates to a coal mine intelligent directional drill and its drilling method, belonging to the technical field of coal mine drills. It comprises a moving platform, machine frame, clamper, main manipulator, power head, drill pipe storage system, control system, and hydraulic system. The power head structure is improved by adding an angle adjuster with accurate angle adjustment, locking, and anti-rotation functions. The angle adjuster is positioned on the gearbox side opposite the main motor, connected via a driving shaft. The control system includes a toolface azimuth detection and initialization system that works with the angle adjuster. This solves prior issues such as the absence of specialized toolface azimuth adjustment devices, low precision, low track adjustment efficiency, and challenges in achieving automatic directional drilling in the prior art. The invention enhances precision and efficiency, enabling automated, intelligent directional drilling.

An automated directional drilling machine for a coal mine, comprising: a moving platform (1), a rack (2), a clamping device (3), a main mechanical arm (4), a power head (5), a drill rod storage system (8), a control system (6), and a hydraulic system (7). By improving the structure of the power head (5), an angle adjustor (503) is arranged on the side of a transmission (502) away from a main motor (501), and a transmission shaft (50301) in the angle adjustor (503) is circumferentially and fixedly connected to a driving shaft (50201), so that accurate and efficient adjustment of a tool face angle is achieved by means of the angle adjustor (503) having the functions of accurate angle adjustment and locking to prevent rotation, and the structure of a rotation braking device of the main motor (501) is simplified.

Vibration in a drill string is damped with a damping system coupled to the drill string. The damping system includes a chamber, a gas and piston in the chamber, and a mass connected to the piston. The gas defines a spring having a spring coefficient that is dependent on a volume or temperature of the chamber. The damping system is tunable in real-time by varying the volume or temperature of the chamber. In alternatives with multiple chambers interconnected to one another via ports, chamber volume at the existing pressure can be varied by selective actuation of valves between the chambers or the pressure of the gas can be varied by compressing or expanding a connected bellows or by heating or cooling the temperature of the gas. The damping system can selectively damp both radial and torsional vibrations.

The invention relates to the technical field of mining machinery, in particular to a gold mine mining blasting automatic trepanning device and a trepanning method.The gold mine mining blasting automatic trepanning device comprises a base plate, the base plate is an assembly carrier of the drilling device and can be externally connected with an engineering vehicle or an engineering mechanical arm, a mounting frame is fixedly mounted on the base plate, and the mounting frame is a frame body with an opening in the top; the guide frame is fixedly arranged at the top of the mounting frame, and the guide frame is an annular frame body internally provided with a clamping groove; the gear ring is rotationally mounted in a clamping groove in the guide frame; and the rotating frame is fixedly arranged in the gear ring. By means of the spiral blades on the drill rod, fragments generated in the drilling process are synchronously pushed out, the situation that the fragments are accumulated near the drill bit to affect efficiency is prevented, meanwhile, cooling water is allowed to enter a drilling area through the arrangement of the flow guide through hole and the connecting pipe in the drill bit, the fragments are helped to be flushed out of the hole, and the drilling efficiency is further improved.

The invention discloses an anti-jamming coal mining drilling machine with drilling and multidirectional impacting functions and a using method thereof.The anti-jamming coal mining drilling machine comprises a drilling machine body, a high-pressure driving mechanism is arranged on the drilling machine body through a multidirectional guide rail mechanism, and a drilling assembly is connected with the high-pressure driving mechanism; when the drilling machine works, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, the high-frequency transverse vibration mechanism synchronously generates transverse high-frequency vibration, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, and the high-frequency transverse vibration mechanism drives the drill rod and the drill bit to conduct rotary drilling. The friction force between the drill bit and rock is reduced, debris accumulation is prevented, efficient deslagging is achieved, when hard rock or drill jamming occurs, the longitudinal vibration impact mechanism triggers longitudinal vibration, impact and drill jamming prevention functions are achieved through cooperative work of transverse vibration and longitudinal vibration, the drill jamming problem under the complex geological condition is effectively solved, the drilling efficiency and equipment reliability are improved, and the drilling cost is reduced. The device is suitable for drilling operation of mining roofs and baseplates, sides and the like.

The invention discloses a self-adaptive rock drilling control method and a drill jumbo. The self-adaptive rock drilling control method comprises the steps that S1, initialization is conducted, specifically, parameters including the quality of a drilling component, a drilling included angle, a calculation coefficient, target propulsion pressure, target impact pressure and control parameters are initialized based on a control system before operation; s2, drilling is conducted according to the initialized parameters, the number of drill rods is recorded by a drill rod number counter, and impact pressure compensation and propelling pressure compensation are conducted according to the increased number of the drill rods; s3, adjusting the output propulsion pressure based on the difference between the target rotation pressure and the actual rotation pressure to enable the actual rotation pressure to tend to the target rotation pressure, adjusting the impact pressure based on the relation between the effective impact pressure and the effective propulsion pressure to enable the effective impact pressure to tend to the target impact pressure, and ensuring that the effective rock drilling parameters at the drill bit are matched with the rock. It is guaranteed that the effective propelling pressure and impact pressure at the drill bit meet the requirements, and therefore the drilling precision and quality are guaranteed.

The invention provides a geological exploration drilling device for geotechnical engineering and a using method thereof, and relates to the technical field of exploration drilling. The drilling device comprises a bottom table, an arched support, a guide support, a transverse shaft rotating table, a driving assembly, a clamping head, a Z-axis driving part, a drill rod, a sampling drill bit, a pipe storage frame, a pipe feeding tool and a clamping assembly. According to the geological exploration drilling device for geotechnical engineering, drilling work of large-depth holes can be completed by adopting the drill rod connected in a multi-section mode, the main body structure of the geological exploration drilling device for geotechnical engineering is small and convenient to move and use, and manpower and material resource cost can be saved when the geological exploration drilling device is applied to large-depth drilling work; in addition, the geological exploration drilling device for geotechnical engineering is provided with the transverse shaft rotating table and the pipe storage frame, the pipe storage frame is obliquely arranged to be in an L shape, a plurality of drill rods can be obliquely placed, the pipe storage frame is used in cooperation with the pipe feeding tool, the connection work of the multiple drill rods can be easily and efficiently completed, and the working intensity of large-depth drilling operation is further reduced.

The invention belongs to the field of rock-soil drilling equipment, and discloses a highway construction rock drilling sampling device which comprises a rack, a sampling device and a sampling device, the drill rod assembly is arranged on the rack and comprises an inner shaft rod and an outer sleeve rod, and the inner shaft rod is rotationally sleeved with the outer sleeve rod; the first driving mechanism at least drives the outer sleeve rod to rotate; and the drill bit assembly is connected with the drill rod assembly. Through the drill rod assembly and the drill bit assembly, a sampling component and a drilling component of the drill bit assembly are matched with a limiting tooth part through a movable ratchet assembly, state switching of the sampling component and the drilling component can be achieved, and when the drilling component is reversely screwed out after drilling, a movable tightening piece can be driven to move by rotating relative to the sampling component; and the movable tightening part of the sampling component can tighten and clamp the sample, so that the friction force in the sampling process can be increased, the sample is not easy to fall off, the structure is simpler, and the operation is easy.

A portal pile driver, and a cast-in-place pile construction method are provided, relating to the technical field of pile foundation construction. The portal pile driver includes a portal frame, a pile frame platform, a moving assembly, and a lifting assembly. The portal frame is erected at one side of the pile frame platform, and a power head is installed on the portal frame. A loading zone is located at the pile frame platform, and a projection of a central shaft of the power head on the pile frame platform is located in an extension direction of the loading zone. The moving assembly is located at one side or each of both sides of the loading zone, and multiple drill pipes are horizontally distributed on the moving assembly, and each drill pipe is perpendicular to a plane where the portal frame is located.

A system and method for stall recovery of mud motors may be implemented in a steering control system. The stall recovery system and method may involve automatic detection of a stall of a mud motor during drilling controlled by the steering control system, and may respond to the stall in a rapid and controlled manner to avoid or minimize damage to the mud motor, such as by immediately reducing mud pressure and stopping rotary drilling, if used, faster than a typical human operator could perform. The stall recovery system and method may further take actions to automatically restart drilling.

The utility model discloses a hydraulic rock drill which comprises a machine body composed of a machine base, a cylinder body, a middle body, a gear box, a gear box cover and a machine head which are sequentially connected, a first cavity for containing an impact piston and a second cavity for containing a bit shank are formed in the machine body, and a cooling lubricating cavity communicated with the first cavity and the second cavity is formed in the machine body. An air inlet chamber is formed in the machine base, and an air inlet communicated with the air inlet chamber is formed in the rear end of the machine base. The impact piston is provided with a central channel which is communicated with the air inlet chamber and the cooling and lubricating air chamber; an air passing channel which is communicated with a gap between the bit shank, the rotary assembly and the machine head and a gap between the bit shank and the machine head part is formed in the machine head; cooling and lubricating air introduced into the air inlet chamber enters the cooling and lubricating cavity through the center channel of the impact piston, sequentially passes through the bit shank, the gap between the rotary assembly and the machine head and the air passing channel, enters the gap between the head of the bit shank and the machine head and is blown out, and the situation that the cooling effect is poor due to the fact that air flow is poor after heat exchange is avoided.

The invention belongs to the technical field of tunnel engineering, and particularly relates to drilling equipment for tunnel engineering construction, which comprises a drill rod, a driving part and a feeding part, the driving part and the feeding part are connected with the drill rod, and a dustproof deslagging unit is further arranged on the drill rod and comprises a blocking cover, a sleeve, a transmission structure and a shifting plate. The blocking cover is of a hemispherical groove structure, and a discharging opening is formed in the side wall of the blocking cover; one end of the sleeve is inserted into the bottom wall of the anti-blocking cover, the sleeve and the anti-blocking cover are rotationally connected, and the drill rod is inserted into the sleeve in a penetrating mode; the transmission structure is arranged between the inner wall of the sleeve and the side wall of the drill rod. The transmission assembly is used for driving the sleeve to rotate in the feeding process of the drill rod. And the shifting plate is fixedly connected with the sleeve and is used for rotating in the anti-blocking cover under the driving of the sleeve. According to the device, dust and disintegrating slag generated in the drilling process of the drill rod can be collected and continuously discharged, accumulation of the dust and the disintegrating slag is effectively avoided, and the protection performance of the drill rod is improved.

The invention relates to the field of geological exploration, in particular to a mineral geological exploration device and a using method thereof.The mineral geological exploration device comprises a supporting frame, the side wall of the supporting frame is movably connected with a supporting seat, the middle of the supporting seat is rotationally connected with a drilling rod, and the side wall of the supporting seat is fixedly connected with a drilling motor; a synchronous belt is movably connected between the movable end of the drilling motor and the upper portion of the drilling rod, an adjusting rod is vertically and movably connected to the middle of the drilling rod, three movable bins are formed in the drilling rod at equal intervals, and three sampling mechanisms are movably connected to the surface of the adjusting rod at equal intervals. The mineral geological exploration device is composed of a sampling mechanism and an isolation mechanism. The adjusting rod is rotated to move downwards in cooperation with the isolation mechanism, two arc-shaped partition plates on the adjusting mechanism move oppositely and drive a scraping strip to scrape and sweep the inner wall of a drill hole, soil falling from the upper portion of the drill hole is scraped away, the situation that soil at different depth positions of the inner wall of the drill hole is mixed together is reduced, and the exploration sampling quality is improved.

The invention relates to the technical field of hydraulic systems, and discloses a directional drilling hydraulic system of a kilometer directional drilling machine, which comprises a hydraulic pump station, a walking unit, a drilling main unit, a drilling auxiliary unit and a stabilizing unit, the hydraulic pump station is connected with the walking unit, the drilling main unit, the drilling auxiliary unit and the stabilizing unit; the main pump assembly and the auxiliary pump assembly do not influence each other and run independently relatively, so that two systems for providing hydraulic power by the main pump assembly and the auxiliary pump assembly work simultaneously but do not interfere with each other, the stability and reliability of the systems are ensured, the operation steps of the directional drilling machine are simplified, the construction safety of the drilling machine is improved, and the failure rate of the hydraulic system of the drilling machine is reduced. The main pump assembly and the auxiliary pump assembly work independently, the main pump assembly provides hydraulic power for the walking unit and the drilling main unit, the auxiliary pump assembly provides hydraulic power for the drilling auxiliary unit and the stabilizing unit, drilling machine faults caused by misoperation are reduced, the construction safety of the drilling machine is improved, and the drilling efficiency of the drilling machine is effectively improved.

The invention provides a geological exploration sampling method and sampling equipment based on vibration drilling and obstacle recognition, and belongs to the technical field of geological exploration. The geological exploration sampling method comprises the following steps: 1, starting drilling; 2, switching a vibration mode; 3, obstacle recognition; 4, grouting assistance; and 5, recovering drilling and completing sampling. According to the geological exploration sampling method, the adaptability to complex stratums can be improved by switching the rotary drilling mode and the vibration drilling mode, a multi-sensor module is adopted in the obstacle recognition step, and pressure, sound waves and vibration signals are collected in real time, so that the obstacle type is accurately judged, and a basis is provided for subsequent drilling mode adjustment. In the grouting assisting step, grouting equipment is adopted to inject grout into an obstacle area from grouting micropores in the front end of a drill bit through a grouting channel so as to effectively weaken an obstacle structure. By means of the method, efficient drilling and sampling operation under the complex stratum condition can be achieved, the drilling tool jamming risk is reduced, adaptability is high, and efficiency is high.

The invention discloses a drilling device for geological mineral exploration, and relates to the technical field of geological exploration, and the drilling device comprises a supporting and bearing device which is fixed on the ground where a target position is located; the rotating device is rotationally arranged on the supporting and bearing device; the positioning and adjusting device is fixed on the rotating device and is positioned above the supporting and bearing device; the lifting adjusting device is fixed to the rotating device and located on the outer side of the positioning adjusting device; the driving assembly is arranged on the lifting adjusting device in a sliding mode and located above the positioning adjusting device; the conveying device is fixed on the side part of the rotating device; and the drilling assembly is arranged in the middle of the positioning adjusting device in a sliding mode and connected with the bottom of the driving assembly, and the drilling assembly is rotationally connected with the positioning adjusting device. The drilling rod is limited in the drilling process, so that the drilling assembly performs drilling according to the set direction, and directional drilling can be performed by selecting a proper angle according to requirements.

The invention discloses an embedding device for a pore pressure sensor, and relates to the technical field of pore pressure sensor embedding, the embedding device comprises a drill hole cleaning mechanism and a first mounting ring mounted at the bottom of the drill hole cleaning mechanism, a cleaning mounting mechanism is arranged on the outer side of the drill hole cleaning mechanism, and a lifting support is arranged at the top of the cleaning mounting mechanism; the drilling cleaning mechanism comprises a fixing ring, first rotating supports are symmetrically installed on one side of the top of the fixing ring, first rotating motors are fixedly installed on the outer sides of the first rotating supports, and the output ends of the first rotating motors are fixedly connected with first rotating worms. A conveying motor is started to drive a conveying rotating rod and a conveying spiral blade to rotate, soil and stone generated by drilling are conveyed into a collecting box by utilizing the structural characteristics of the conveying spiral blade, a cleaning scraper is driven by a drilling conveying cylinder to rotate, and the conveyed soil and stone can be collected and discharged through a blow-down valve.

The invention discloses a drilling device and method for municipal road engineering detection, the drilling device comprises a rack, a motor and a screw rod, the screw rod is driven by a driver to rotate, the outer surface of the screw rod is rotatably connected with a lifting plate, the top of the lifting plate is slidably connected with a supporting rod, the bottom end of the supporting rod is fixedly connected with a bearing plate, and the bearing plate is fixedly connected with the motor. The bottom of the bearing plate is fixedly connected with the rack, and the position, close to the bearing plate, of the rack is fixedly connected with a cleaning assembly. According to the drilling device and method for municipal road engineering detection, a lifting plate conveniently moves in the vertical direction to drive a motor to move, the situation that a drilling assembly 5 is clamped in a drilled hole and damaged due to deviation during drilling is avoided, a rack is fixed through a locking assembly when a screw rod rotates, and the drilling efficiency is improved. And the situation that the rack is driven to move due to shaking generated by drilling is avoided, then the precision of drilling work is guaranteed, the drilling efficiency of the equipment is further improved, and drilling work is conducted on different positions of the ground.

The invention discloses an anti-seismic construction device for an ultrahigh-strength concrete pipe pile. The anti-seismic construction device comprises a supporting frame mechanism, a pile grooving mechanism and a pipe pile sinking mechanism. The support frame mechanism comprises a bottom support frame, a vertical support steel plate and a top steel plate; the pile grooving mechanism comprises a grooving rod assembly, a rod rotating assembly, a mounting assembly of the rod rotating assembly and a lifting assembly. The pipe pile sinking mechanism comprises an impact block, a block movable limiting rod and an impact block hoisting assembly. The construction method comprises the following steps that 1, firstly, the pile grooving mechanism is used for deeply digging and grooving; 2, sinking the pipe pile section by section by using a pipe pile sinking mechanism, and impacting to sink; 3, a reinforcement cage is arranged below, concrete grout is injected, and solidification is waited; soil is extruded into the soil retaining barrel, the soil is convenient to pull out, deep excavation is not prone to deviation, the tubular pile can permeate concrete to the outside, the multiple protrusions are formed on the outer wall of the tubular pile, friction between the tubular pile and the soil is easily increased, and the tubular pile is not prone to falling down.

The present invention relates to a hydraulic rotary drilling machine and a control method thereof, belonging to the technical field of mechanical equipment, including a platform frame, a plurality of cutting head assemblies are arranged at the lower end of the platform frame, a reducer is arranged between the cutting head assembly and the platform frame and is connected to the cutting head assembly by spline shaft nesting transmission, a pair of scraper frames which are distributed in a mirror-symmetrical manner on the left and right and are bolted to the lower end of the platform frame are arranged at the rear end of the cutting head assembly, and a grab bucket assembly which is movably inserted and sleeved with the platform frame is arranged at the upper end of the platform frame. It has the characteristics of compact structure, convenient disassembly, good operation stability and long service life. It solves the problem that a base cannot be built on a mountain. It improves the stability of drilling operation, reduces shaking caused by high-speed operation, and avoids jamming and drill back phenomena.

The invention discloses a hydraulic reverse hitting impact power head which comprises a gearbox, a reverse hitting device and an impact device, and the reverse hitting device comprises a shell assembly, a drill rod and a reverse hitting piston. A control cavity is formed between the shell assembly and the reverse hitting piston, and a control oil way is further arranged in the shell assembly and the reverse hitting piston and connected with a high-pressure oil way and a low-pressure oil way in the impact device. The control cavity is used for forming a micro-pressure cavity when the power head works normally, and then the reverse hitting piston and the shell assembly are made to be close to the rear end side of the drill rod. The control cavity is further used for forming a high-pressure cavity only through communication between the control oil way and the high-pressure oil way in the process that the shell assembly drives the reverse hitting piston to move in the reverse direction to pull out the drill rod when the drill is stuck, then the reverse hitting piston is pushed to drive the drill rod to move in the reverse direction to pull out the drill rod, and the control cavity forms a micro-pressure cavity again when the drill rod is pulled out. According to the power head, the overall structure is simple and compact, oil is supplied from the interior of the impact device, automatic recognition and reverse hitting can be achieved when drill jamming occurs, and an energy accumulator does not need to be additionally installed.

The present invention discloses a mining blasting drilling device, which comprises a frame, a drilling machine top, a positioning frame, and a slide. A retractable cabin is installed on the frame, a pulling rope is led downward from the side bottom of the retractable cabin, a retractable shaft is installed in the retractable cabin, and the retractable shaft rotates to control the length of the pulling rope led to the outside of the retractable cabin. A driving cabin is installed at the bottom of the drilling machine top, and a lifting seat is installed in the driving cabin. A positioning plate is hingedly installed at the end of the positioning frame. The lifting seat descends and pushes the positioning frame to rotate outward, so as to drive the positioning plate to move outward and fit against the inner wall of the drilled hole. The lifting drive assembly can push the slide and drill rod downward and cooperate with the rotation of the drill rod to complete downward drilling. In the present invention, the pulling rope is gradually retracted and extended, so that the drilling structure penetrates deep into the hole. The entire hole is drilled through multiple descents and drillings. The depth of the drilling is not limited by the length of the drill rod, and the drilling depth can be directly controlled by the pulling rope, thereby improving the efficiency of the entire drilling process.

The utility model provides a split mountain drilling machine which comprises a first module, a second module and a remote gas conveying pipe, and the first module and the second module are arranged in a split mode; the first module comprises a hydraulic submodule and a power head assembly which are connected, the hydraulic submodule is used for conveying hydraulic oil to the power head assembly, and the power head assembly is used for driving a drill rod; the second module comprises an air compressor sub-module, the air compressor sub-module is connected with the first module through a remote air conveying pipe, and the air compressor sub-module is used for remotely conveying compressed air to the power head assembly. Through the arrangement, when drilling operation is carried out, after the first module is carried to a drilling operation point, the second module does not need to be carried to the same position along with the first module, the drilling operation can be smoothly carried out by remotely conveying compressed air to the first module through the second module, and the moving distance of the second module is greatly reduced; and personnel allocation for drilling operation can be reduced, single well consumption is reduced, and the drilling working efficiency is improved.

Disclosed are small model pit launch horizontal direction drills suitable for drilling a substantially horizontal bore hole and laying pipe underground from within a surface dug pit. The devices comprise a stationary frame and a carriage component competent to move forward and back along the frame and drill and retrieve an attached drill stem through an aperture in the frame. The carriage components are configured to allow an operator to straddle the carriage and operate the device from a seated position within the frame component interior.

The utility model relates to the technical field of photovoltaic construction devices, in particular to a photovoltaic pile foundation positioning construction device which comprises a fixed base, an operation base is arranged above the fixed base, and the fixed base and the operation base are connected through a plurality of supporting positioning rods. The supporting and positioning rod comprises a first hinge block, a supporting sleeve rod, a second hinge block, a supporting sleeve and a first bolt, second connecting blocks are symmetrically arranged on the lower surface, close to the supporting and positioning rod, of the operation base, and the two second connecting blocks are rotationally connected with the upper surface of the fixed base through the fixed sleeve; and a perforating machine is arranged between the two second connecting blocks in a sliding manner. According to the utility model, the punching angle of the punching machine can be adjusted by supporting the positioning rod and rotating the fixed sleeve rotationally connected below the punching machine, so that a pile body can vertically enter a soil body, the condition that the pile body is inclined is avoided, the construction difficulty of operators is greatly reduced, and the characteristics of the pile body can be better embodied.

The invention discloses an urban road construction pavement hole forming device which comprises an equipment frame and a moving frame located in the equipment frame, a pushing mechanism matched with the moving frame is arranged on the equipment frame, a drilling mechanism is arranged in the moving frame, and a cleaning mechanism is arranged on the drilling mechanism. The invention relates to the technical field of road construction. According to the pavement hole forming device for urban road construction, a third hydraulic telescopic rod is controlled to extend to push a protection box to move downwards, the protection box can drive a rotating rod and a spiral drilling piece to move downwards, meanwhile, a motor is controlled to drive the rotating rod to rotate, the rotating rod drives the spiral drilling piece to rotate, and the spiral drilling piece rotates downwards to drill the ground; and soil in the hole enters the soil guide cylinder and overflows upwards, and the overflowed soil falls into the annular cylinder, so that the soil in the hole can be well collected, the soil is effectively prevented from flowing back into the hole, manual cleaning is not needed, and cleaning is convenient.

The invention discloses a drilling and cutting head, a drilling and cutting device, a gob-side entry retaining slotting method and a roof cutting pressure relief method, and belongs to the technical field of mine drilling and cutting. The drilling and cutting head comprises a vehicle body, a drilling rod and the drilling and cutting head, and the vehicle body is rotationally provided with a drilling rod conveying driving mechanism through a connecting base and a rotary table; a water cutting system is further installed on the vehicle body. The drilling and cutting head comprises a mounting seat, a plurality of drill bit seats and drill bit blocks, an inner cavity is formed in one end of the mounting seat, and mounting holes are formed in the side wall of the mounting seat; a spray hole is formed in the middle of the spray head. And the end part of the inner cavity of the drilling and cutting head is connected with the head drill rod. Through one device, two operation procedures of drilling and water cutting can be achieved, high efficiency of the gob-side entry retaining slotting method and the top cutting pressure relief method can be achieved, the device cost is effectively reduced, the device can be flexibly and conveniently used in a roadway, the operation efficiency is effectively improved, and the device cost is reduced.

The invention relates to the field of tunnel engineering, and discloses a vertical drilling and grouting all-in-one machine for micro-disturbance grouting in a subway tunnel hole and a technological method.The vertical drilling and grouting all-in-one machine comprises a base used for supporting the whole device, a sliding rail is installed on the inner wall of the base, and a supporting frame is installed at the end, close to the center line of the base, of the sliding rail; a drilling and injecting mechanism is arranged on the outer wall of the sliding rail, and a sealing assembly is arranged on the upper surface of the base. The drilling and injecting mechanism comprises a sliding frame, the sliding frame is slidably connected to the outer wall of the sliding rail, the front surface of the sliding frame is fixedly connected with a supporting plate, the lower surface of the supporting plate is rotatably connected with a drilling rod, and the lower end of the drilling rod is in threaded connection with a connector. According to the drilling and grouting device, the drilling and grouting mechanism is arranged, the hollow drill rod is adopted for drilling, during grouting operation, drilling operation can be achieved through rotation of the drill rod, then the drill rod can be directly connected with grouting equipment, and therefore grouting can be achieved through the drill rod directly.