733results about "Percussion drilling" patented technology

The invention discloses an in-situ coring system and method for a soft rock extension roadway bottom plate. The system comprises a stable anchoring base, a drilling driving and propelling module, a stress adjusting module, a low-disturbance coring module, a rock core in-situ packaging and fidelity module and an intelligent integrated control unit. The stable anchoring base is used for fixing the system on a roadway bottom plate; the drilling driving and propelling module provides rotating power and axial feeding force for the drilling tool; the stress adjusting module is used for adjusting the stress state around the rock core; the low-disturbance coring module comprises a composite function coring drill bit and a double-layer coring pipe, and low-disturbance cutting and containing of a rock core are achieved. The rock core in-situ packaging and fidelity module is used for sealing and packaging the rock core in real time; and the intelligent integrated control unit adaptively controls the coring process according to sensor data. According to the invention, low-disturbance, high-precision and in-situ fidelity rock core acquisition of the soft rock roadway bottom plate can be realized, and the problems of large soft rock coring disturbance, difficulty in fidelity, low intelligent degree and the like are effectively solved.

The invention relates to the technical field of coal mine underground drilling equipment, in particular to a gyrator for a coal mine directional drilling machine and a using method.The gyrator comprises a shell, an input shaft and an output shaft, the shaft extension end of the output shaft is provided with a pressure balance type multiple dynamic sealing system, and the sealing system comprises a main sealing unit, a pressure balance unit and a dustproof sealing unit; the pressure balance unit comprises a sealing cavity, a lubricating grease injection channel and a grease injection nozzle; pressure lubricating grease is injected into the sealing cavity through the grease injection nozzle, so that a dynamic positive pressure barrier higher than the internal medium pressure of the gyrator and the external pressure of the environment is formed in the sealing cavity; through a triple sealing structure formed by combining the spring seal main seal, the pressurization balance cavity and the V-shaped dustproof ring and by combining an active injection and dynamic balance using method, passive blocking of traditional sealing is converted into active defense, the problem of invasion of high-pressure slurry and pulverized coal is effectively solved, and the service life of the sealing device is prolonged. And the working reliability and the service life of the equipment are obviously improved.

The utility model discloses a geological drilling coring device which comprises a frame body, a placing table is installed on the upper portion of the frame body in a sliding mode, a motor is connected to the upper portion of the placing table through bolts, the motor is connected with a transmission shaft through a belt, a coring barrel is fixedly connected to the bottom of the transmission shaft, and a drill bit is fixedly connected to the bottom of the coring barrel. A cutting-off structure is arranged in the coring barrel and comprises a cavity and a first gear, a sliding block is slidably installed in the cavity, a rack is fixedly installed on the upper portion of the sliding block, a second gear is rotatably installed in the cavity, the second gear is connected with the rack in a meshed mode, and a double-face gear ring is rotatably installed at the upper position in the cavity. The double-face gear ring is connected with the second gear in a meshed mode, the double-face gear ring is connected with the first gear in a meshed mode, and a rotating shaft is fixedly installed at the top of the first gear. According to the geological drilling coring device disclosed by the utility model, a required core sample can be completely stored in the device.

The present application is suitable for pile foundation positioning technical field, provide a kind of pile foundation positioning device, including base, the mounting bracket is fixed on the base, the base is provided with avoiding hole, further include: guide sliding block, main shaft, helical blade, mounting plate, guide shaft, mounting block, drive assembly, reciprocating mechanism, second transmission assembly and disengaging mechanism.Reciprocating mechanism is driven mounting block to reciprocate up and down on guide shaft by the way of guide sliding block moves in guide chute, further make main shaft and helical blade reciprocate up and down while moving down, it is convenient to discharge the soil drilled by helical blade, improve the efficiency of pit positioning, when main shaft is contacted with rock, disengaging mechanism removes the transmission connection of main shaft and first motor and stops mounting block to reciprocate up and down on guide shaft, make mounting block move upwards along guide shaft, main shaft has no downward thrust at this time, to avoid the instant collision of helical blade and rock when main shaft is contacted with rock.

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.

The invention discloses an autonomous rock-soil body drilling instrument based on the bionic principle and a drilling method thereof.The autonomous rock-soil body drilling instrument comprises a drill bit, a propelling steering mechanism, an anchoring mechanism, an electric control integrated module and a ground control unit, and the drill bit, the propelling steering mechanism and the electric control integrated module are sequentially connected; anchoring mechanisms are arranged between the drill bit and the propelling steering mechanism and between the propelling steering mechanism and the electric control integrated module; the drill bit is used for cutting a rock-soil body and backwards conveying and discharging the cut rock-soil body to the outside of the drill bit; the propulsion steering mechanism is used for driving the drilling instrument to linearly advance and steer; the anchoring mechanism is used for providing counterforce required by drilling or resetting for the drilling instrument through meshing and separation with surrounding rock and soil bodies; and the electric control integrated module is connected with the ground control unit through an integrated communication cable. The device simulates an anchoring-propelling mechanism of natural organisms, realizes autonomous drilling without an external counter-force device, a slurry protection wall and a probe rod, and has the capabilities of multi-directional drilling, active obstacle avoidance and real-time acquisition of a continuous geological section.

The invention relates to the technical field of high-altitude drilling operation, in particular to a modular quick-connection vibroflotation guide rod and a using method thereof.The modular quick-connection vibroflotation guide rod comprises an upper guide rod and a lower guide rod, a male connector assembly is arranged at the bottom end of the upper guide rod, the modular quick-connection vibroflotation guide rod comprises a male connector body and a connecting ring rotationally arranged outside the male connector body in a sleeving mode, and a clamping piece is arranged on the connecting ring in a protruding mode. And an axial guide key groove and an L-shaped guide groove are formed in the female joint body of the lower guide rod. During insertion, the axial guide key groove limits rotation of the male joint main body, and pure axial blind insertion of an internal pipeline is guaranteed; meanwhile, the clamping piece slides in along the L-shaped guide groove, the connecting ring is forced to rotate in the radial direction and is matched with the inner and outer conical surfaces to achieve zero-clearance locking. When the pipe is pulled out, the unlocking sliding sleeve is upwards and linearly lifted, the sliding pin forces the clamping piece to be unscrewed and unlocked, and meanwhile the internal micro-channel one-way valve is triggered to introduce high-pressure fluid to wash silt. Dynamic and static separation and manual-free one-key unlocking in the inserting and pulling process are achieved, and the reliability and efficiency of ultra-deep vibroflotation construction are greatly improved.

The utility model relates to the technical field of pile machines, and discloses a multifunctional all-in-one machine which comprises a chassis, a main arm and a clamping box, the main arm and the clamping box are sequentially arranged on the chassis in the longitudinal direction, a power head is arranged on one side of the main arm, a winch used for driving the power head to move up and down along the main arm is arranged on the chassis, and a walking device is arranged on the lower portion of the chassis. The clamping box is slidably connected with the chassis, and the main arm is rotatably connected with the chassis. All processes of drilling and pile pressing can be completed through one device, the clamping box and the main arm can move independently, pile pressing and drilling operation can be carried out at the same time, and construction efficiency can be greatly improved. The main arm can longitudinally translate and can horizontally rotate, and the clamping box can independently and longitudinally translate, so that the drill rod can be quickly and accurately moved to the next pile position under the condition that the chassis is not moved, the operation is flexible, and the positioning is accurate.

The vibration absorption device comprises a shell and a buffer piston which are coaxially arranged, the buffer piston is sleeved with the shell, and the vibration absorption device further comprises at least two buffer cavities, an oil inlet way and a balance valve which are distributed on the periphery of the buffer piston at intervals in the axial direction; the oil inlet path is arranged on the shell and is communicated with at least one buffer cavity; the buffer cavities are communicated through the balance valves, the balance valves are used for changing the communication relation between the buffer cavities according to the pressure difference between the buffer cavities, the buffer cavities can be communicated in time, the buffer cavities needing oil supplementing are subjected to oil supplementing, sudden pressure drop of the cavities is avoided, and the phenomena of negative pressure and cavitation are avoided. Damage to parts in the rock drill is reduced, and the vibration absorption effect is improved. The second aspect provides a rock drill comprising the vibration absorption device in the first aspect, an impact piston coaxially arranged in the buffer piston in a sliding mode, a bit shank coaxially arranged on the front side of the impact piston, and a plug buffer spacer bush arranged on the impact piston in a sleeving mode and located between the buffer piston and the bit shank.

The tunnel intelligent drilling robot comprises a mechanical arm and a connecting base fixedly arranged at the tail end of the mechanical arm, the connecting base is connected with an electric hammer mounting support, an electric hammer is fixedly mounted in the electric hammer mounting support, and a drill bit of the electric hammer extends out of the electric hammer mounting support in the axial direction; and an elastic buffer assembly is arranged between the connecting seat and the electric hammer mounting bracket and is used for absorbing rigid collision during drilling. The device has the beneficial effects that the service life of the device can be prolonged, the drilling precision is guaranteed, and automatic and high-precision drilling is achieved based on visual perception.

The utility model relates to a mining angle-adjustable deep hole drilling machine. The mining angle-adjustable deep hole drilling machine comprises a crawler, a hydraulic arm, a connecting seat, a supporting frame, a driving mechanism, a lifting block, a drill rod, a drilling motor, a drill bit and a guide frame. A hydraulic arm is installed on the crawler, a connecting base is arranged at the end of the hydraulic arm and can be adjusted in the left-right direction under the action of a hydraulic rod, and a supporting frame is rotatably installed on the left side and can achieve angle adjustment in the front-back direction through a driving mechanism. The lifting block ascends and descends along the supporting frame under constraint of the guide frame, the lower side of the lifting block is connected with the drill rod and the drill bit, and the drilling motor drives the drill rod and the drill bit to rotate to complete drilling operation. According to the structure, multi-direction automatic leveling and precise drilling of the drilling machine under the uneven terrain are achieved, the adaptability, precision and safety of drilling operation are improved, and the drilling machine is suitable for deep hole drilling operation under complex working conditions such as mines.

The utility model provides a deep perforating device for roadbed settlement reinforcement, which relates to the technical field of building construction and comprises a triangular bottom plate. Three groups of balance plates are annularly arranged on the triangular bottom plate, a supporting vertical plate is vertically arranged on the upper end face of the triangular bottom plate, a triangular top plate is fixedly connected to the top of the supporting vertical plate, and two guide columns are fixedly connected between the triangular top plate and the triangular bottom plate; by arranging the drilling and smoothing mechanism, after drilling operation is completed, a rotating rod slowly stretches out towards the earth surface direction, meanwhile, reverse accelerated rotating motion is conducted, and by means of inertia of an inertia balance weight piece, a traction rod forwards pushes a balance weight block to be separated towards the outer side; at the moment, the smoothing arc plate makes contact with the inner wall of the drill hole, the balancing weight exerts pressure, and the smoothing arc plate is tightly attached to the inner wall of the drill hole to do high-speed rotating motion, so that the inner wall is smoothed, the concave-convex degree of the inner wall is effectively reduced, and favorable conditions are created for follow-up steel bar implanting work; the problem that after an existing foundation punching device completes punching operation, the hole wall is obviously uneven is solved.

The invention discloses a multi-mode sampling and drilling device based on a lithology adjusting drill bit mounting seat and a hole forming method, and belongs to the technical field of drilling device.The multi-mode sampling and drilling device based on the lithology adjusting drill bit mounting seat and the hole forming method comprise a mounting plate, and a fixing plate is fixedly mounted on the side edge of the mounting plate; by arranging the structure of the motor supporting cylinder, the device is more stable in the hole forming process, the hole forming and sampling precision is higher, hole forming and sampling can be completed only by one person, the usability is better, by arranging the structure of the sampling drill bit, different sampling schemes can be used according to different rock stratum materials, and the sampling efficiency is improved. Crushing sampling can be conducted on hard rock stratums, overall sampling can be conducted on soft rock stratums, so that different use scenes are met, different drill bits can be arranged according to the rock hardness through the structure of the drill bit installation base, and therefore different sampling requirements such as powder sampling and rock block sampling are met.

The utility model discloses a stable self-adaptive meteorological balloon recovery device, which comprises a detection device main body and a positioning assembly, the outer wall of the top of the detection device main body is provided with a storage groove, and the positioning assembly used for preventing the detection device main body from moving is installed in the storage groove. The positioning assembly comprises a baffle, a spiral drill bit, a small motor, a movable plate and sliding groove columns, the spiral drill bit is arranged in the middle of the baffle, the small motor is installed at the top of the spiral drill bit, the movable plate is fixedly installed at the bottom of the small motor, and the sliding groove columns are formed in the two ends of the movable plate; a shaft rod is arranged at the end, close to the detection device body, of the baffle, and the outer wall of the shaft rod is sleeved with a strong torsional spring. The stable self-adaptive meteorological balloon recovery device not only can prevent the device from being moved by external force after landing, but also can reduce the impact force on internal parts after the detection device body lands.

An electro-crushing drill bit is to drill a wellbore, wherein the electro-crushing drill bit comprises a bit body; a ground structure coupled to the bit body; and at least one electrode coupled to a power source and the bit body, the at least one electrode positioned within the ground structure, wherein the at least one electrode comprises, a fixed plate; and a movable plate that is movable relative to the fixed plate.

The utility model relates to long spiral drilling machine technical field, and disclose a long spiral drilling machine erecting device, including bottom plate, be equipped with erecting board on the bottom plate, the base is slidably installed on the erecting board, the base surface is equipped with drilling machine subassembly, the buffer early warning component is equipped between the erecting board and base. This long spiral drilling machine erecting device, through setting up buffer early warning component, when approaching limit position in the base lifting process, the top rod will first contact with the top plate, the hydraulic damping rod and buffer tension spring common effect, the rising of base is buffered, avoid base and drill bit excessive lifting and directly rigid impact limiting plate, effectively reduced the irreversible plastic deformation caused by impact force, protected the structural integrity of equipment, when the base continues to rise and makes the top plate touch contact switch, the early warning lamp will light up, timely to the operator warning signal, remind the operator to pay attention to the lifting height, further guarantee the safe operation of equipment.

The invention discloses a quick tripping drilling machine and a tripping and tripping method thereof. The drilling machine comprises a site multifunctional device which is arranged on the front ground and used for turning a drilling tool into a horizontal state or a vertical state; the power drill rod box is arranged on at least one side of the site multifunctional device and used for conveying drilling tools to the site multifunctional device or receiving the drilling tools from the site multifunctional device. The base is arranged on the ground on the rear side of the site multifunctional device, the base is provided with a power slip used for clamping a drilling tool in the center of a well mouth, an iron roughneck used for screwing on and screwing off at the position of the well mouth and a derrick, a top drive is arranged in the derrick, a power elevator is hung on the lower portion of the top drive, and a pushing manipulator is arranged on the middle rear portion of the derrick. By means of flexible configuration and collaborative operation of the ground site multifunctional device and the power drill rod box, the three-joint unit does not need to be stored on a table top in the tripping operation process, and operation is directly conducted between the drill rod box and a well mouth.

The invention discloses a specimen collection device for hydrogeological testing and a collection method thereof, and relates to the technical field of specimen collection, the specimen collection device comprises a drilling rod and further comprises a collection assembly, a collection frame is fixedly mounted at the bottom of the drilling rod, a liquid outlet hole is formed in the right side of the collection frame, and a connecting frame is fixedly mounted at the bottom of the collection frame; a drill bit is fixedly mounted at the bottom of the connecting frame, a collecting hole is formed in the bottom of the collecting frame, a filtering plate is fixedly mounted at the bottom of the collecting frame, a placing plate is fixedly mounted on the inner wall of the collecting frame, a waterproof motor is fixedly mounted at the top of the placing plate, and a placing rod is fixedly mounted at the output end of the waterproof motor; by scattering soil blocks, underground water can flow into the collecting frame more uniformly, so that the sampling efficiency is improved, the hollow rod moves upwards to drive the scattering plate to move upwards to reset, and the scattering plate moves back and forth to scatter soil accumulated in the connecting frame.

The application relates to a directional drilling structure for a navigable river and an application method thereof, and relates to the drilling technology field; the directional drilling structure for the navigable river comprises a drill bit body, an agitating frame is rotationally connected to the end of the drill bit body, a control element is arranged on the drill bit body, and the control element is used for driving the agitating frame to rotate; the application has the effect of reducing the possibility of yaw in the drilling process of the drilling equipment.

The invention discloses a double-pipe drilling double-power drilling machine system, which belongs to the technical field of drilling rods, and comprises an outer drilling rod, a spiral inner drilling rod is rotatably arranged in the outer drilling rod, the outer drilling rod is in threaded connection with a pipe drill bit, a PDC drill bit is arranged at one end, far away from the outer drilling rod, of the pipe drill bit, and a plurality of liquid holes are formed in the PDC drill bit; a composite slice drill bit is arranged on the periphery of the end, away from the outer drill rod, of the pipe drill bit, and a deslagging channel is formed between the composite slice drill bit and the PDC drill bit. And a central channel communicated with the liquid hole is formed in the central position of the spiral inner drill rod. According to the double-pipe drilling and double-power drilling machine system, scour and damage of drilling cuttings to a drilling hole wall are fundamentally eradicated, the drilling cuttings carrying efficiency of a medium is greatly improved through the spiral stirring and vortex effect generated by reverse rotation of the inner drill pipe and the outer drill pipe, the stubborn problem that a slag discharging channel is blocked is effectively solved, and the service life of the drilling cuttings is prolonged. And continuous and efficient operation under complex and deep hole working conditions is ensured.

The utility model relates to the technical field of tunnel supporting and discloses a tunnel supporting anchor rod propelling robot which comprises a bottom plate, and a propelling mechanism and a moving mechanism are arranged on the top face of the bottom plate. The pushing mechanism is arranged, a first sliding block is moved by arranging a first hydraulic rod, so that the angle of a first supporting box is adjusted, the anchor rod is pushed according to different positions of tunnel supporting, meanwhile, a first motor is arranged to drive a reciprocating threaded rod to rotate, and the angle of the first supporting box is adjusted. The position is adjusted according to different positions of tunnel supporting, so that tunnel supporting operation is effectively carried out; a moving mechanism is arranged, a second motor is arranged to drive a double-end threaded rod to rotate, so that second supporting frames on the two sides are driven to move, the anchor rods are fixed according to different diameter models of the anchor rods, a moving plate is moved by starting a second hydraulic rod, and the anchor rods are pushed; and therefore, constructors can conveniently carry out machining.

The invention relates to the technical field of mining mechanical equipment, and discloses a spiral drilling machine machining device and method.The spiral drilling machine machining device comprises a crawler machine body and a hydraulic motor, a connecting base is arranged at the top of the hydraulic motor, and one end of the crawler machine body is fixedly connected with the connecting base; the device further comprises an upper spiral drill rod fixedly connected with the output end of the hydraulic motor through a coupler, a lower spiral drill rod is arranged at one end of the upper spiral drill rod, fixing plates are fixed to the left side and the right side of the connecting base respectively, lengthening units are installed on the two fixing plates respectively, and a lengthening spiral drill rod is clamped and fixed to one side of one lengthening unit. Under the action of the designed lengthening unit, the lengthened spiral drill rod and the fixing unit, sectional type connection of the spiral drill rod is achieved, the spiral drill rod can be automatically lengthened according to the drilling depth, higher flexibility and adaptability are achieved, the requirements of drilling operation at different depths can be met, the construction efficiency is effectively improved, and the construction cost is reduced. And the time and the labor cost consumed by replacing the drill rods with different lengths are reduced.

This invention provides a spiral drilling mining robot and an adaptive cutting control method, belonging to the field of mining equipment technology. The technical solution is as follows: a spiral drilling mining robot includes a tracked walking mechanism, a drill rod unit, a power system, a support device, and a sliding platform device; this invention also provides an adaptive cutting control method, including the following steps: first, borehole preparation and gas detection; second, adaptive borehole mining operation; third, drilling completion and equipment reset; the beneficial effects of this invention are: this invention uses a gas concentration sensor on the drill bit to detect the gas concentration in real time and automatically adjusts the nitrogen injection volume, effectively controlling the gas concentration. Simultaneously, the equipment can dynamically adjust the drill bit rotation speed and propulsion speed according to changes in drill bit load and rock hardness, improving tunneling efficiency; furthermore, the tunneling equipment features a modular design, enabling the equipment to flexibly cope with drilling requirements at various depths.

The utility model provides an auxiliary punching device for coal mining, and relates to the technical field of coal mining equipment, the auxiliary punching device comprises a movable punching vehicle and an auxiliary assembly, when the auxiliary punching device is used, a main body frame is moved to a designated punching position of a coal face, main body supporting legs are adjusted, the main body frame is perpendicular to the surface of a coal seam, and if the coal seam is complex and the ground is uneven, the auxiliary assembly is started; when the main body supporting legs are used for supporting, the four main body supporting legs can have the conditions of infirm supporting, non-uniform supporting area and insufficient supporting levelness, and at the moment, the positioning and guiding piece is unfolded and adjusted to ensure that the end part of the positioning and guiding piece is kept away from the uneven ground; the end of the positioning guide piece is tightly attached to the surface of the coal seam, meanwhile, the main body frame is perpendicular to the surface of the coal seam, the initial position and direction of drilling are determined at the moment, then the auxiliary supporting piece is unfolded and supported on the ground, extra supporting force is provided for the main body frame, and the stability of the main body frame in the working process is guaranteed.

The high-precision hydraulic rock drill rapping rod limiting structure comprises a hydraulic cylinder body and a hydraulic cylinder rear end cover connected to the tail end of the hydraulic cylinder body, a rapping rod is arranged at the axis position in the hydraulic cylinder body, the tail end of the rapping rod is a conical surface, and the inner side of the hydraulic cylinder rear end cover is connected with a main limiting seat; a guide hole is formed in the axis position of the main limiting seat, an annular oil storage cavity is formed in the bottom in the main limiting seat, the aperture of the guide hole is matched with the outer diameter of the tail end of the rapping rod, a conical damping cavity matched with the tail of the rapping rod is formed in the bottom of the guide hole, and a miniature radial damping hole is formed in the top of a cone of the conical damping cavity. And the miniature radial damping holes are communicated with the annular oil storage cavity. According to the design, the conical buffer head is matched with the conical damping cavity, so that gradually-increased hydraulic damping force is formed, and stable speed reduction is achieved. The limiting shoulder is used for making contact with and compressing the disc spring set, nonlinear and high-rigidity buffering force is provided, stable output of impact energy is guaranteed, and noise and harmful vibration are remarkably reduced.

The application discloses a top driving assembly for drilling and a drilling device, and belongs to the technical field of oil drilling equipment. The top driving assembly for drilling directly drives a main shaft by using a permanent magnet synchronous motor, and a gear reduction box is omitted. The assembly is integrated with a bearing box, a lubricating oil tank, a brake system and the permanent magnet motor from top to bottom, and is compact in structure. The main shaft is rotationally matched with the bearing box through bearings arranged in multiple steps. The lubricating oil tank is provided with a hollow part which is isolated from the space in the tank and through which the main shaft passes, so that oil pollution is prevented. The brake system is connected with the main shaft through a torque transmission pin and a brake shaft sleeve, and effective braking is realized. The device is mainly applied to land and ocean drilling, can significantly improve transmission efficiency, reduce maintenance cost, and is suitable for small drilling rig operation.

The utility model discloses a speed control device for guide hole drilling, which relates to the technical field of rock stratum drilling and comprises a fixed frame body, a drilling machine body is arranged in the fixed frame body, a telescopic rotating motor is arranged in the drilling machine body, and a rotating drill bit is arranged at the bottom end of the telescopic rotating motor. The telescopic rotating motor and the rotating drill bit are used for conducting vertical forward hole guiding on the courtyard. Through the fixing frame body, the inserting plate, the connecting block and the gradienter body, the state that the rotary drill bit moves downwards all the time is kept, it can be guaranteed that when the rotary drill bit drills holes, the fixing frame body can protect operators, the rotary drill bit keeps the state of moving downwards all the time, the drilling process can be continuously conducted, and the drilling efficiency is improved. And time waste caused by stagnation or adjustment of the rotary drill bit is reduced. The design of the fixed frame body provides a safe barrier for operators, and the rotary drill bit can be prevented from hurting the operators due to drill bit breakage or rock splashing in the drilling process.

The utility model relates to the technical field of water conservancy construction, and particularly discloses water conservancy construction piling equipment. The sliding rod is mounted at the top end of the mounting seat; the top extension air cylinder is fixedly mounted at the top end of the sliding rod; the sliding fixing seat is arranged outside the sliding rod in a sleeving manner; the motor is installed at the top end of the sliding fixing base, and the rotating mechanism is installed outside the sliding fixing base; through the arrangement of the connecting base, the spiral soil drilling rod, the runner pipe and the permeation hole, water flow can be injected into the runner pipe through pressurization water injection of the water tank in the drilling process, at the moment, the water flow enters soil through the permeation hole to play a role in wetting, then the spiral soil drilling rod is smoother during rotary excavating operation, and the rotary excavating efficiency is improved. The wetting treatment is beneficial for improving the piling and drilling efficiency and simplifying the soil excavation work.

This invention relates to the field of exploration and sampling technology, and discloses a self-anchoring lightweight drilling rig and a method for core drilling in soil and rock. The self-anchoring lightweight drilling rig includes: a reaction frame; a drilling unit including a drive unit, a drill rod, and a drill bit, the drive unit being mounted on the reaction frame; an anchoring unit including an expansion outer cylinder and an expansion inner cylinder, the expansion outer cylinder being connected to the reaction frame and inserted into a first borehole, the side wall of the expansion outer cylinder having multiple cuts, each cut having an anchoring plate connected to it, and each anchoring plate having a protrusion on its inner side wall; the reaction frame being connected to the expansion outer cylinder; the drive unit presses the expansion inner cylinder into the expansion outer cylinder, causing the protrusions to push the anchoring plates outward and tightly fit them against the borehole wall of the first borehole, thereby achieving firm self-anchoring; the drive unit being mounted on the reaction frame allows the reaction force generated during drilling to be directly transmitted to the anchoring unit and the surrounding strata through the reaction frame.

The application discloses an arm support type drilling machine and a method for adjusting the gravity center of the drilling machine, and comprises a platform, a track assembly, a drilling arm, a mast, a power head, a first driving mechanism, a second driving mechanism, a third driving mechanism, a fourth driving mechanism, a fifth driving mechanism, a sixth driving mechanism, a platform inclination sensor, a drilling arm pitch angle sensor, a drilling arm left-right swing angle sensor, a mast pitch angle sensor, a mast left-right roll angle sensor, a power head displacement sensor and a controller. The controller is used for controlling the first driving mechanism, the second driving mechanism, the third driving mechanism, the fourth driving mechanism, the fifth driving mechanism and the sixth driving mechanism to move according to the collected signals of the platform inclination sensor, the drilling arm pitch angle sensor, the drilling arm left-right swing angle sensor, the mast pitch angle sensor, the mast left-right roll angle sensor and the power head displacement sensor, so that the gravity center of the arm support type drilling machine meets the requirements and the automatic adjustment of the gravity center can be realized.