101 results about "Drill bit" patented technology

The invention discloses a planetary drill bit assembly for balancing the reactive torque of drilling equipment in well drilling and relates to the technical field of drill bits and drilling equipment for oil drilling. The planetary drill bit assembly comprises a planetary structure, a pressure compensating device, and inner and outer drill bits. One end of a drive shaft is connected with an internal drill bit assembly; the middle part of the drive shaft is sleeved with a drive shell; an external drill bit assembly is fixedly arranged outside the drive shell; and a planet bracket tray, a planet bracket and a plurality of planet gears are positioned between the drive shell and the drive shaft. In the invention, the external and internal drill bits are driven by the same drive mechanism to rotate simultaneously and the rotation speed of the external drill bit varies automatically with the change of the drilling speed, so the drill bit can adapt to and eliminate or balance the reactive torque generated by the different drilling speeds in real time. And thus, and the stability and directional control capability of the drill bit are further increased.

Methods for depositing hardfacing material on portions of drill bits comprise providing a vertically oriented plasma transfer arc torch secured to a positioner having controllable movement in a substantially vertical plane. A rolling cutter is secured to a chuck mounted on an articulated arm of a robot. A surface of a tooth of the rolling cutter is positioned in a substantially perpendicular relationship beneath the torch. The torch is oscillated along a substantially horizontal axis. The rolling cutter is moved with the articulated arm of the robot in a plane beneath the oscillating torch. A hardfacing material is deposited on the tooth of the rolling cutter.

The invention relates to a step drill, which comprises a drill body and a drill stock, wherein the drill body is stepped and at least comprises a first cutting part and a second cutting part; the first and second cutting parts are coaxial; the first cutting part is positioned at the front end of the drill body; the second cutting part is positioned behind the first cutting part; the diameter of the first cutting part is less than that of the second cutting part; each cutting part is at least provided with two helical cutting blades; a chip groove is formed between every two cutting blades; and an end face cutting blade is formed at a transition part between the second and first cutting parts. A stepped hole can be machined with one such step drill, which prevents errors caused by the repeated installation of a drill bit and improves the machining accuracy of the stepped hole.

The invention relates to a diameter variable double high-pressure stir-spray pile and a diameter variable method thereof. The diameter variable double high-pressure stir-spray pile and a diameter variable method thereof are used for carrying out corresponding structural improvement on a drill bit and stirring blades of the drill bit, and the diameter variation of the drill bit is realized througha sleeve pipe and an elastic connecting rod structure so as to realize on-site adjustment of the radius of a formed pile without disassembling and replacing the drill bit. On the basis of improving the operation efficiency and shortening the adjustment of diameter variation, the stability of the drill bit and a drill pipe connection structure is ensured. The diameter variable double high-pressurestir-spray pile comprises a drill pipe and the drill bit connected to the end of the drill pipe; a high-pressure gas pipe and a high-pressure cement slurry pipe communicate with the inner parts of thedrill pipe and the drill bit; at least two layers of stirring blades are arranged on the periphery of the drill bit, and air outlet holes and/or slurry outlet holes are formed below each layer of stirring blades; the drill bit is provided with an outer sleeve pipe connected with the drill pipe, and an end head is connected to the end of the outer sleeve pipe; the stirring blades are provided withhinged connecting rods and diameter variable rods; and the ends of the diameter variable rods are fixedly connected with the outer sleeve pipe, and a vertical transmission mechanism inside the outersleeve pipe is movably connected to the ends of the connecting rods.

The present invention discloses a stable wood planning assembly that can press and limit the wood veneer effectively to prevent the sharking during a planning operation. The assembly includes a pair of knife shafts having a base and a plurality of grooves disposed equidistantly from each other that the grooves of the two knife shafts are disposed alternately with each other. And the base includes a set of material pressing shoes installed axially and corresponds to a groove of the knife shaft, and the material pressing shoes has a curved surface corresponding to the groove of the knife shaft groove, at the rear end of the shoes has a spring that is used to stably press the wood veneer, and at both lateral sides of the shoes have a curvature bit guide plate which corresponds to the external diameter of the knife shaft, and a dust-collecting equipment attached.

The invention discloses a drill bit of a hollow drill. The drill bit comprises a drill handle and a barrel, and is characterized in that the top end of the barrel is provided with a wear-resistant layer; a plurality of cutting teeth are uniformly distributed on the wear-resistant layer; the wear-resistant layer is formed by overlaying a JY49-1 material at one time; the cutting teeth are directly welded on the wear-resistant layer. The drill bit has the advantages of corrosion resistance, easiness in cleaning, firmness, prevention of deformation and durability.

A drilling machine comprises a power motor unit coupled with a spiral rod and a drill bit shaft and assembled in a mounting frame using a positioning disc. The arbor of power motor mounted on the mounting frame directly drives the drill bit shaft. The spiral rod is disposed at the periphery of drill bit shaft. A plurality of cutters are arranged between the drill bit and spiral rod at the outer perimeter of drill bit with a hollow guide notch above the cutters. The spiral rod is mounted in the positioning disc and engage a plurality of planet gears. When the arbor of power motor turns, it directly drives the drill bit shaft, drives the fast turning of drive gear at the periphery of drill bit shaft, resulting in different turning speeds with the drill bit shaft turning slowly and the spiral rod turning fast.

The invention relates to the technical field of highway construction, and discloses a soil sampling device for a highway engineering road and a using method thereof. The soil sampling device for the highway engineering road comprises a base and a sampling barrel; a supporting plate is fixedly installed on one side of the top of the base; the bottom of the sampling barrel is open; a sleeve plate is fixedly installed on one side of the sampling barrel; the sleeve plate sleeves the outer side of the supporting plate in a sliding mode; a motor is fixedly mounted at the top of the sampling barrel; a circular hole is formed in the top of the sampling barrel; a cylinder is rotatably mounted in the circular hole; a square hole is formed in the top end of the cylinder; a square rod is slidably mounted in the square hole; and a drill bit is arranged at the bottom end of the square rod. The device is reasonable in design, the drill bit is driven to rotate at a high speed and vibrate up and down while moving downwards at a low speed to drill holes in the ground, a hard soil layer can be conveniently drilled, manpower consumption is reduced, and drilled soil is conveyed into a collecting frame to be collected and stored, so automatic sampling of the soil is achieved, and the sampling work efficiency is improved.

The invention provides a thick ore body mining method. A thick ore body refers to an ore body thicker than 5m. According to a chamber type filling mining technique, upper and lower passages are respectively constructed in the middle and on two sides of a chamber along a cutting direction, roof cutting is performed towards the upper passage along a stoping line, a roof and side wall bolting nets are subjected to shotcrete supporting, and the lower passage are descended towards two sides along the stoping line and filled. The method includes steps of upper roof cutting, lower step descending, hierarchical segmented blasting, deslagging and loading, lower wet filling and upper cementing roof connection. By means of stepped full-layer descending mining, a free face is widened to increase blasting efficiency while material consumption caused by secondary descending is avoided, explosive consumption is reduced by 0.12Kg/t, detonator consumption is reduced by 0.11 detonator per t, and consumption of steel chisels and drills is reduced by 0.02Kg/t.

The invention relates to a cement-soil mixing pile device and an operation method of the cement-soil mixing pile device. The cement-soil mixing pile device is reconstructed and optimized on the basis of an original cement-soil mixing pile machine and comprises a hold hoop, a blade, a drilling rod, a drilling head, an upper slurry spraying opening, a lower slurry spraying opening, an air control valve, a slurry inlet pipe I, a slurry inlet pipe II and a slurry inlet pipe III, wherein the slurry inlet pipe I, the slurry inlet pipe II and the slurry inlet pipe III are communicated to the lower slurry spraying opening, an inner hole of the drilling rod is directly communicated with the upper slurry spraying opening, a water inlet slurry opening of the air control valve is communicated with the slurry inlet pipe I when the drilling rod drills downwards and is communicated with the lower slurry spraying opening by the slurry inlet pipe II and the slurry inlet pipe III in sequence, the water inlet slurry opening of the air control valve is communicated with the inner hole of the drilling rod when the drilling rod is lifted, and the upper slurry spraying opening is used for spraying slurry. Compared with the prior art, the cement-soil mixing pile device and the operation method of the cement-soil mixing pile device, disclosed by the invention, have the advantages that the mixing is uniform, the mixing efficiency is high, the cost is low, the efficiency is high, the working period is shortened, and the like.

The invention discloses a diamond drill bit suitable for hard stratum drilling, and belongs to the field of drilling. The drill bit comprises a drill bit body, a plurality of blades which extend fromthe drill bit body or are fixed to the drill bit body, water holes or nozzles. The blades are provided with scraping cutting teeth. At least one blade extends to form a strengthening base at the circumferential position of the drill bit, wherein the strengthening bases are provided with scraping cutting teeth. According to the technology, local strengthening of a cutting structure can be achieved,the hard stratum drilling work life is prolonged, and meanwhile premature failures of the cutting teeth due to vibration in the drill bit hard stratum drilling process can be reduced.

A whipstock/billet anchor can be set in open hole such that one or more slips initially shift laterally near the lower end or below the whipstock/billet while the upper end reacts and gets pushed against the wellbore. Then with the top of the whipstock/billet against the wellbore another slip gets a bite to secure the whipstock/billet in a manner where the wellbore gives it some support near its upper end as a drill bit engages the whipstock/billet to make a lateral. Open and cased hole application is contemplated. The anchor also allows running in and supporting a tubular string below and a tool above with the further option of cocking the tool for better support before securing it.

The invention discloses automatic processing equipment for an axle hole. The equipment comprises a frame, a power head, a workpiece clamp, a hydraulic station and an electric control cabinet, and is characterized in that a hydraulic system trunk, a hydraulic charge branch, a hydraulic blocking branch, a hydraulic pushing branch, a hydraulic compaction branch and a hydraulic feed branch, wherein the hydraulic system trunk consists of an oil tank, a filter net, a variable pump, a one-way valve, a stop valve, an oil inlet pipeline and an oil return pipeline; the branches consist of a three-position four-way electromagnetic slide valve, a one-way throttle valve, a two-way oil pressure latching valve, a pressure relay, a charge cylinder, a blocking cylinder, a pushing cylinder, a compaction cylinder and a power head cylinder; the branches and the trunk form a complete hydraulic system of the automatic processing equipment for the axle hole; the frame is fixedly connected with the electric control cabinet, a downhill type sliding rack, a workpiece V-shaped positioning block, hydraulic moving components and drill tools; and each moving component is correspondingly provided with an inductance approach switch.

The invention discloses an engineering drilling device, and relates to the field of drilling devices in grouting construction. The engineering drilling device comprises a tamping machine head, a drill stem and a drill bit. A connecting base is installed below the tamping machine head, the drill stem is connected with the connecting base through a vibrating head, and the drill bit is installed at the tail end of the drill stem and connected with the drill stem in a threaded mode. The engineering drilling device further comprises a buffer device. The buffer device is arranged on the drill stem in a sleeved mode and located between the drill bit and the connecting base and comprises a fixing plate, a spring and a locating plate. The fixing plate is connected with the drill stem in a threaded mode, the spring is arranged below the fixing plate, and the lower portion of the spring is connected with the locating plate. The engineering drilling device is simple in structure, high in work efficiency and good in economic benefit.

The invention belongs to devices for cleaning deposited scale, and particularly discloses a rotary kiln for calcium aluminate powder. The rotary kiln comprises a rotary kiln body, a driving device, a rolling ring and supporting seats, wherein a driving gear is fixed in the middle of the rotary kiln body, and is connected with the output end of the driving device; the rolling ring is fixed on the rotary kiln body, and can roll on the supporting seats; a groove is matched with the rolling ring; the rotary kiln body inclines downwards towards the discharge end; a ring cleaning device used for cleaning deposited rings in the rotary kiln body is arranged on the rotary kiln body; the ring cleaning device comprises a rotating plate, ring cleaning rods and scraping blades; the ring cleaning rods are symmetrically fixed on the rotating plate along the center of the rotating plate; the scraping blades are fixed on the ring cleaning rods; the free ends of the ring cleaning rods are drilling heads; a sealing cover is arranged at the feeding end of the rotary kiln body; the ring cleaning device penetrates through the sealing cover. According to the rotary kiln, the deposited rings in the rotary kiln are reduced, and the work efficiency of the rotary kiln is improved.

The invention discloses a device for quickly drilling in frozen earth and a construction method of the device. The device and the method aim to increase drilling speed. The device for quickly drilling in the frozen earth comprises a drill pipe and a drill bit. A through nitrogen conveying hole is formed in the drill pipe and the drill bit, the drill bit is provided with a liquid nitrogen outlet, the rear end of the drill pipe is connected with a liquid supply pipe, and the liquid supply pipe is connected with a liquid nitrogen storage tank. The invention further discloses the construction method for quick drilling in the frozen earth. The method includes the following steps that the drill pipe extends into a drilled hole frozen in advance; liquid nitrogen in the liquid nitrogen storage tank is input into the drill bit fixed at the bottom of the drill pipe through the liquid supply pipe, and the drill bit is precooled; after precooling, a drilling machine is started, the drilling machine drives the drill pipe to rotate and impact, and the drill pipe drives the drill bit fixed at the bottom of the drill pipe to rotate to drill; in the drilling process, the liquid nitrogen in the liquid nitrogen storage tank flows out from the liquid nitrogen outlet of the drill bit after passing the liquid supply pipe, the nitrogen conveying hole in the drill pipe and an internal channel of the drill bit. The device and the method are suitable for drilling through the drill bit in frozen holes.

A method of avoiding the need for a scraper run in drill out operations. The method involves the single step of incorporating a rotary scraper into the downhole drilling motor assembly in such a manner that the rotary scraper rotates with the drill bit and follows the drill bit to scrape debris from interior casing walls.

A method for manufacturing drill cutters and structure thereof includes forming a base body by forging that has a shank and a barrel which has a plurality of wedging portions at an upper end and forming a barrel-type drill head through powder metallurgy that has a plurality of coupling elements at a lower end corresponding to the wedging portions. The drill head and the base body can be joined together to form a drill cutter which is wear-resisting and does not fracture easily.

An apparatus for cleaning deposits from the interior surfaces of a kiln. The apparatus utilizes a directed high-pressure fluid jet to remove deposits adhering to elements within a kiln. The pressurized fluid is delivered to the fluid jet through the shaft of a rotary drill. The drill shaft is received in a sleeve permitting rotational and longitudinal displacement of the shaft. The sleeve also defines a plenum surrounding the drill shaft to communicate pressurized fluid to the fluid jet throughout longitudinal and rotational displacement of the drill shaft. The drill further utilized a boring bit suitable for penetrating encrusted deposits to provide the fluid jet access to the interior surfaces of the kiln. For removing severe encrustations, the drill bit may be used to partially penetrate the encrustation and a linear actuator may then be employed to press large portions of the encrustation from the kiln's refractory lining.

The present invention discloses a floor lifting horizontal bit gauge. The bit gauge comprises a housing, an inner plate and a handle, and an adjustment lever and a dimension bar which are arranged at the surface of the housing. Three or four uniformly distributed annular telescoping rods are fixedly connected at the lower surface of the housing, and a level meter is installed at the upper surface of the housing. The objective of the invention is to provide a floor lifting horizontal bit gauge, the problems are solved that a bit gauge is used through human holding and it is difficult to make the bit gauge level in the prior art, so that the measurement precision of the bit gauge is improved.

The invention relates to the technical field of water conservancy exploration, and specially relates to geological survey equipment and a survey method thereof. The equipment comprises a screw rod, adrill bit and a sensor; the screw rod is vertically arranged, the drill bit is fixedly connected with the bottom end of the screw rod; the sensor is embedded in the outer side of the drill bit; a bearing plate is arranged at the top end of the screw rod; the side, away from the screw rod, of the bearing plate is fixedly connected with a driving piece. A driving shaft of the driving piece penetrates through the bearing plate and is fixedly connected with the screw rod; a supporting frame is vertically arranged on the outer side of the bearing plate; the support frame is parallel to the screw rod; a lifting assembly is arranged between the supporting frame and the bearing plate. A guide assembly is arranged between the supporting frame and the bearing plate, a leveling assembly is arranged at the bottom end of the supporting frame, an operation plate is fixedly connected to the top end of the supporting frame and is perpendicular to the supporting frame, a surveyor display screen is embedded in the top end of the operation plate, and a universal horizontal bubble is fixedly connected to the top end of the operation plate. The invention has the effect of improving the accuracy of themeasurement result.

A coaxial all-metal cam stator and rotor underground dynamical drilling tool comprises a transition joint, the transition joint is connected with a motor assembly through threads, and the motor assembly is connected with a transmission shaft assembly through threads. After being filtered through a filtering device, drilling liquid passes through the transition joint, enters an annular space between a motor base shell of an upper motor and a stator shell after passing through an upper end cover, enters a center hole of an upper rotor after acting on the upper rotor, is discharged towards a lower motor through inclined holes in the center hole of the upper rotor and continuously drives the lower motor to rotate, a part of the liquid acted by the lower motor flows out through small holes formed in a transmission shaft joint to lubricate and cool a bearing and most of the drilling liquid is sprayed out through an inner hole of a spindle of the transmission shaft and drill water holes so as to cool and clean a drill and circulate slurry. The coaxial all-metal cam stator and rotor underground dynamical drilling tool has the advantages of being resistant to abrasion, resistant to corrosion, resistant to high temperature, resistant to aging, long in service life, simple in structure and easy to machine.