330results about "Reciprocating drilling machines" patented technology

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 provides a reverse hitting device used for a rock drill, the rock drill comprises a machine body, a bit shank protruding from the machine body and a drill rod fixed to the bit shank, the drill rod comprises a drill bit and a connecting sleeve, the connecting sleeve is arranged on the bit shank in a sleeving mode, the diameter of the connecting sleeve is larger than that of the drill bit, and the diameter of the connecting sleeve is larger than that of the drill bit. The reverse beating device comprises a fixing part fixed to the machine body, a reverse beating oil cylinder fixedly connected with the fixing part and an abutting assembly connected with the reverse beating oil cylinder. According to the reverse beating device and the rock drill, the reverse beating device can be used in cooperation with a common rock drill, and normal work of the rock drill cannot be affected; the reverse beating device is simple in structure and convenient to use, the rock drill using the reverse beating device can achieve the reverse beating function when a drill is stuck, quick-wear parts are easy to replace, and the user experience feeling is good.

The invention discloses a hydraulic tunnel drilling trolley excavation construction device, and relates to the technical field of tunnel construction equipment.The hydraulic tunnel drilling trolley excavation construction device comprises a trolley and a punching mechanism, a plurality of walking wheels are arranged at the bottom of the trolley, a lifting frame is slidably arranged on the trolley in the vertical direction, and a moving frame is slidably arranged on the lifting frame in the horizontal direction; a supporting arm is rotationally arranged on the moving frame, a mounting frame is rotationally arranged at the end of the supporting arm, and the punching mechanism is arranged on the mounting frame and used for punching holes in the tunnel wall. According to the hydraulic tunnel perforating device, the labor intensity of workers can be reduced, the perforating efficiency and precision can be improved, meanwhile, the perforating position and angle can be flexibly adjusted, the hydraulic tunnel perforating device adapts to the complex and changeable hydraulic tunnel construction environment, and the perforating requirements of different positions and angles are met.

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 present invention discloses a drilling mechanism for slope grouting reinforcement, which belongs to the technical field of drilling equipment. The mechanism comprises an engineering vehicle body, a drill bit assembly for drilling, and a carrier for carrying the drill bit assembly. A power structure for providing power to the drill bit assembly is slidably connected to the outer wall of the carrier. The output end of the power structure is connected to a transmission structure for extending the drilling depth. The transmission structure and the drill bit assembly are connected via a drilling structure. In the present invention, after the sliding direction of the limit frame is adjusted, the drive motor is turned on to drive the flywheel to rotate. During the rotation of the flywheel, the power rod is continuously hammered, thereby causing the power sleeve to rotate under the action of the casing, thereby driving the inner drill bit and the outer drill bit to rotate through the cooperation of the output rod and the transmission sleeve rod. In this way, not only can the drill bit assembly be continuously provided with rotational force, but also the drill bit assembly can be continuously provided with impact force, thereby increasing the drilling efficiency.

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 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 invention belongs to the technical field of lunar exploration equipment, and provides a step-by-step laser-assisted rock breaking drilling tool and method for a lunar-based extreme environment, the drilling tool comprises a conversion disc, a rock drilling tool and a laser head, the laser head and the rock drilling tool are integrated in the same drilling tool structure through the conversion disc, laser or mechanical rock breaking modes can be switched according to working conditions, and the laser or mechanical rock breaking modes can be switched according to the working conditions. And step-by-step rock breaking is realized. The drilling tool is suitable for extreme environments such as low gravity, vacuum, high dust and severe temperature change of the moon, has the advantages of being compact in structure, flexible in switching and high in energy utilization rate, and can be widely applied to tasks such as lunar soil stripping, lunar rock mining, underground structure detection and lunar base construction.

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.

An arrangement and method for heating an impact device (9) of a rock treating machine (Rtm) in low-temperature operating conditions. The arrangement comprises a warm-up mode (WM) for feeding pre-heated hydraulic fluid through a feed channel (19) to a hydraulic circuit (18) of the impact device. There are one or more hydraulic accumulators (Pa) in the hydraulic circuit. The feed channel is provided with a control element (CE) for limiting the feeding of the pre-heated hydraulic fluid during the warm-up mode. The control element limits the feeding of the pre-heated hydraulic fluid in the feed channel so that separating elements (Se) of the pressure accumulators do not move.

The utility model discloses a convenient-to-disassemble type movable grouting drilling machine which is characterized in that the side surface of a base is fixedly connected with fixing blocks and stop blocks, the fixing blocks are provided with through holes, four fixing blocks are arranged on the same face of the base, a rotating shaft is arranged in the through holes in a penetrating mode, the side surface of the rotating shaft is rotatably connected with a rotating block, and the rotating block is located between the two fixing blocks. A connecting block is fixedly connected to the lower surface of the rotating block, a supporting column is fixedly connected to the side surface of the connecting block, fixing columns are fixedly connected to the side surfaces of the base and the supporting column, a first rotating ring and a second rotating ring are rotationally connected to the fixing columns correspondingly, and second limiting rings are arranged at the ends, away from the base, of the first rotating ring and the second rotating ring; and the second limiting ring is in threaded connection with the fixing column, and an electric telescopic rod is arranged between the first rotating ring and the second rotating ring, through the structure, the whole device can be conveniently and stably supported in the using process, and the situation that the whole device is unstable and shifts due to shaking of a moving mechanism in the using process, and consequently the device is damaged is avoided.

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 invention relates to the technical field of impact holing cast-in-place pile construction, in particular to a complex steep terrain inclined rock surface impact holing cast-in-place pile construction technology which comprises the following construction steps that S1, a slope platform is built; s2, pile casing punching equipment is installed; s3, punching is conducted through pile casing punching equipment; s4, separation and disassembly; and S5, the pile casing is installed. By innovatively designing the technologies of slope platform building, pile casing punching equipment structure (comprising a supporting frame body, a guide cylinder seat, a cylindrical hammer and limiting, guiding and rotating components thereof), crushing tooth part modularization and replaceability, a self-sharpening structure, a stress release groove, a cutting rib TiN coating and the like, the excavator operation problem and the drill bit impact trepanning precision problem are effectively solved; construction accuracy, equipment operation efficiency and durability are remarkably improved, maintenance is convenient, cost is reduced, meanwhile, the cutting effect and abrasion resistance are optimized, a high-quality and high-efficiency solution is provided for pile casing construction in complex terrains, and the using effect is good.

The application discloses a boring machine for ore mining and relates to the technical field of ore mining decomposition. The boring machine comprises a connecting arm and a boring unit, the boring unit is arranged at the front end of the connecting arm, the boring unit comprises a drill bit, the drill bit is arranged at the side of the connecting arm, the top of the drill bit is in transmission connection with a driving unit through a drill shaft, and the boring machine further comprises a protection unit which is arranged on the outer side of the drill shaft. The support of the protection tube avoids large-scale collapse of the hole, the outward pushing movement of the multiple outward pushing surfaces arranged on the surface of the protection tube compacts and reinforces the hole wall to a certain extent, the influence of hole wall collapse on the construction of the drill bit is further avoided, the drill bit top surface is impacted and vibrated, the impact and chiseling of the drill bit are more concentrated, the drill bit is prevented from being stuck, the influence on the hole wall is reduced, the longitudinal and transverse buffers arranged at the top of the drill bit guarantee the stability of the movement of the drill bit in the hole, and the hole wall is relatively compact and not easy to collapse after the drill bit is withdrawn.

The invention discloses a piston cushion chamber structure, which relates to the technical field of hydraulic cylinder buffering, and comprises a cylinder body and a reversing valve, and the reversing valve is fixed on the cylinder body through a bolt. According to the piston buffer cavity structure, by arranging a series-connection type multi-stage buffer system composed of the first buffer mechanism and the second buffer mechanism, when the piston body conducts over-travel motion, first-stage buffer is conducted through a first spring of the first buffer mechanism, part of impact energy is absorbed, and then hydraulic buffer of the second buffer mechanism is triggered immediately; through cooperation of the oil pressing ring and the buffering sleeve, variable secondary buffering is achieved through back pressure generated by hydraulic oil throttling, under the limiting condition, a closed oil cavity can be formed, third-level buffering is achieved through incompressibility of hydraulic oil, and huge energy of over-travel can be stably and efficiently absorbed and dissipated in a multi-level progressive buffering mode. The device is prevented from being damaged due to over-stroke operation, and the service life of the device is effectively prolonged.

The present invention discloses a cavity verification device capable of displaying the footage and drilling speed of a drilling rig in real time, belonging to the technical field of cavity verification. The device comprises an impact drill and a protective tube located outside the impact drill, an infrared distance sensor being installed on the outer shell of the impact drill, a speed sensor being installed on the rotor of the impact drill, bar tracks being symmetrically arranged in the protective tube, sliding rods being slidably connected in the bar tracks, a circular track being fixed between two of the sliding rods, and a fixing mechanism being slidably connected in the circular track for fixing the impact drill; the present invention can display the footage and drilling speed of the drilling rig in real time, avoid risks during operation, and even if danger occurs, avoid harm to the operator, thereby having high safety.

Rock drilling machine (10) comprising a hydraulic percussion unit (11) including a percussion piston (12) for providing percussive impulses to a shank adapter (13) of the rock drilling machine (10) in a forward direction (Dfwd), the shank adapter (13) being configured to be connected to a drill string (6) during operation. A hydraulic damper unit (14) is arranged for damping the recoil movement of the shank adapter (13) in the backward direction (Drev), and a hydraulic extractor unit (16) is arranged for actuating the shank adapter (13) in the backward direction (Drev). The rock drilling machine comprises an inlet coupling (Cp) for connection to a pressure source (P) of pressurised hydraulic fluid and an outlet coupling (CT) for connection to a tank (T) for non-pressurised hydraulic fluid. Further, the inlet coupling (Cr) is connectable to both the hydraulic damper unit (14) and the hydraulic extractor unit (16). The disclosure also relates to a drill rig comprising such a rock drilling machine. (FIG. 4)

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

Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.

The invention provides a deep and thick backfill foundation pile planting construction method, and belongs to the technical field of backfill foundation pile construction, and the method comprises the following steps: S1, pre-drilling in a large-particle-size backfill layer by using a down-the-hole pile hammering machine, and synchronously burying a pile casing in the pre-drilling process; s2, the down-the-hole hammer construction equipment is moved away, and soil body backfilling is conducted in the pre-drilled hole; s3, a percussion drilling machine is adopted for percussion drilling in the hole with the soil body backfill; s4, after the hole deeply penetrates through the large-particle-size backfill layer, a special drilling machine with a grouting function is adopted to replace a percussion drilling machine to conduct drilling in a conventional soil layer in the hole; s5, after the special drilling machine drills a hole to a preset depth, the special drilling machine lifts a drill rod from the interior of the drill hole and injects curing slurry for stirring at the same time; and S6, before the solidification slurry in the hole is not solidified, the precast pile is implanted into the solidification slurry in the hole. The method has the beneficial effects that the precast pile construction efficiency and effect are improved, the pile forming quality is guaranteed, and many defects existing in a traditional construction technology are overcome.

The present invention pertains to a system and method to determine rock fracturing during the breaking process, specifically when using rock breakers in the mining industry. More precisely, the present invention relates to a system and a method that, using sensory information composed of images, point clouds, or both, automatically determines, in real time, whether a rock which a rock breaker is attempting to break is fractured or not.

The present invention relates to the field of tunnel construction technology, specifically to a positioning device and method for using cold extrusion equipment in tunnel construction. It includes a jack, the jack is connected to a hydraulic pump, the jack is hoisted on a steel bracket through a walking structure, a crossbeam is provided above the steel bracket, the bottom of both sides of the steel bracket slides along a steel track through casters, and baffles are provided at both ends of the steel track; a gear bar is provided at the upper end of the crossbeam, the walking structure moves along the gear bar, and limit blocks are provided at both ends of the gear bar. The device of the present invention improves the qualified rate of the extrusion sleeve, ensures that the two sections of steel bars are coaxial, and the indentation of the sleeve is uniform after extrusion, and there is no need to manually pry or lift the jack, saving the cost of construction personnel and improving the efficiency of steel bar binding.

A device for generating pressure waves in a well or a wellbore is described. The device includes a housing containing an impact-generating mechanism for generating the pressure waves and a connector for connecting the housing to a conveyor for transporting the device to any desired location within the well or the wellbore. The device may be used for a number of downhole applications such as cleaning perforations, fracturing processes, vibration of a casing to prevent fluid flow in a cemented annulus, hydraulic jar operations for freeing stuck downhole objects, generating data to optimize pumping parameters and as an enhancement to percussion drilling techniques.

A hydraulic hammering device includes a dual damper (4) including a pushing piston (5), a damping piston (6), a pushing chamber (51) configured to generate a propulsive force in the pushing piston (5), a damping chamber (61) configured to generate a propulsive force in the damping piston (6), a drain circuit (81) provided in constant isolation from the pushing chamber (51) and the damping chamber (61) and configured to return hydraulic fluid leaked from locations of sliding contact of the pistons (5) and (6) to a tank, and a first throttle (9) interposed in the drain circuit (81), and only a check valve (10) configured to, while allowing supply of hydraulic fluid from the high-pressure circuit (7) to the pushing chamber (51), restrict an outflow of hydraulic fluid in the reverse direction is provided in a pushing passage (71) connecting the pushing chamber (51) and a high-pressure circuit (7) and only a second throttle (11) is provided in a damping passage (72) connecting the damping chamber (61) and the high-pressure circuit (7).

The utility model provides a full-hydraulic variable-frequency rock drill which comprises a cylinder body, a piston and a reversing valve, and the piston is inserted into the cylinder body in a sliding mode. A first oil groove, a feedback oil channel, an oil drainage groove and a second oil groove are sequentially formed in the cylinder body and located on the periphery of the piston in the axial direction, and the oil drainage groove is communicated with an oil tank. The reversing valve comprises a reversing valve body and a reversing valve element, and the reversing valve element is installed in a valve hole of the reversing valve body in a sliding mode. A hollow reversing valve element structure is adopted, input hydraulic oil is adopted to establish a weak balance state on the two sides of the reversing valve element, the reversing operation of the reversing valve element is achieved in a single-side oil way control mode, the self movement inertia of the reversing valve element is small, response is rapid and sensitive, and the defects that a traditional rock drill is lagged in control, asynchronous, poor in control stability and the like are overcome. And the vibration frequency is low.

A percussive drill component having a longitudinal central axis comprising at least one threaded part; wherein threaded part comprises a plurality of thread profiles; wherein each thread profile includes a crest, a root, a contact flank; and a non-contact flank and wherein the root in each of the thread profiles is inclined relative to the longitudinal central axis.

A down-the-hole hammer includes a barrel having a longitudinal axis and defining a proximal chamber and a distal chamber, a piston slidable within the barrel between the proximal chamber and the distal chamber, and a flow control valve including a valve member slidable within the barrel along the longitudinal axis to control airflow through the piston. In a first position of the valve member, the valve member allows air flow from a proximal end of the barrel through the piston and into the distal chamber. In a second position of the valve member, the valve member allows air flow around the valve member and into the proximal chamber.

The invention relates to an earth drilling device with a housing, a percussion piston which can be moved back and forth in the housing and a supply line for an operating medium for moving the percussion piston, wherein the supply line is arranged at the end of the housing, and the end of the housing tapers backwards in the longitudinal direction, in particular conically, in the region of the supply line and at the end with the supply line there is a connection feature by means of an opening formed at the end which is at least partially radially accessible.

The invention discloses a tunnel drilling device capable of achieving multi-dimensional angle adjustment and a drilling method.The tunnel drilling device comprises a multi-dimensional adjustment assembly and an electric hammer installation support arranged on the multi-dimensional adjustment assembly, and an electric hammer is assembled on the electric hammer installation support; the multi-dimensional adjusting assembly comprises an X-direction sliding module, a Y-direction sliding module, a lifting assembly and an inclination angle adjusting assembly. The X-direction sliding module and the Y-direction sliding module are used for controlling the electric hammer to reciprocate in the X direction and the Y direction correspondingly, the lifting assembly is used for controlling the electric hammer to ascend and descend in the height direction, and the dip angle adjusting assembly is used for changing the axial dip angle of the electric hammer. The multi-direction adjustable electric hammer has the beneficial effects that the electric hammer can be flexibly adjusted in multiple directions, automatic and high-precision punching is achieved based on visual perception, and the complex drilling requirement of the top of a tunnel is met.