76results about "Drilling accessories" patented technology

The present invention discloses a device for preventing sudden blockage of the sand discharge pipeline in gas drilling, which includes a sand storage tank body (11). The sand storage tank body (11) is connected to a rotating control head (4) through a guiding pipe (8). A guiding tee (9) is arranged between the guiding pipe (8) and the sand storage tank body (11). The guiding tee (9) is connected to a sand discharge pipeline (35) through a vertical guiding pipe (10). The sand storage tank body (11) is connected to the sand discharge pipeline (35) through an exhaust pipe (31). A flap assembly is arranged inside the sand storage tank body (11) at a position opposite to the guiding tee (9). The flap assembly controls the rock particles in the guiding pipe (8) to enter the sand storage tank body (11), so as to prevent the sand discharge pipeline (35) from being blocked. The present invention can effectively solve the technical problem that the sand discharge pipeline (35) is easily suddenly blocked in gas drilling for oil and gas exploration and development.

A dust-free dust removal system of a mine drilling machine relates to the technical field of air purification and comprises a dry dust removal part and a wet dust removal part. The system integrates the advantages of a dry type dust removal technology and a wet type dust removal technology, the water flow is adjusted through air pressure, air pressure and hydraulic oil pressure, dust removal is more accurate, full-particle-size dust is covered, the system adapts to various working conditions, maximum health guarantee is achieved for staff, the service life of a drilling tool and a filter element can be greatly prolonged, and oil consumption is reduced.

Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3 / grams (“G·cm3 / g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Embodiments of the invention relate to polycrystalline diamond compacts (“PDC”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, a PDC includes a polycrystalline diamond (“PCD”) table bonded to a substrate. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. The plurality of interstitial regions includes a metal-solvent catalyst. The plurality of diamond grains exhibit an average grain size of about 30 μm or less. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit an average electrical conductivity of less than about 1200 S / m. Other embodiments are directed to PCD, employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

An apparatus is provided that includes a diamond bearing surface positioned in sliding engagement with an opposing bearing surface of a diamond reactive material. The opposing bearing surface is hardened via a material treatment.

The present invention provides a switch assembly, a switch assembly starting method, and an electric tool. The switch assembly includes a housing, a main switch accommodated in the housing, and a locking switch and a trigger switch installed on the housing. One end of the trigger switch is exposed outside the housing, and the other end is accommodated in the housing and contacts the main switch. One end of the locking switch is exposed outside the housing, and the other end contacts the trigger switch. The locking switch has a locking position and a release position. When the locking switch is in the locking position, the locking switch restricts the action of the trigger switch, the trigger switch is in a locked state, and the main switch cannot be started; when the locking switch is in the release position, the locking switch is located next to the trigger switch and the restriction is released, the trigger switch is in a released state, and the main switch can be started. Compared with the prior art, the switch assembly of the present invention is always in a locked state when not in use, and will not cause abnormal start-up due to unintentional pressing, and has a high safety factor.

A signal switch for a power tool has a paddle supported by a rocker that extends into the switch housing to pivot an actuating member. A circuit board is attached to the bottom of the switch. Depending on the position of the paddle, at least one microswitch extends from the circuit board into the switch in a position to be actuated by the actuating member. The circuit board includes a connector configured to connect to a cable (e.g., a ribbon cable). Circuit traces on the circuit board are electrically connected to the microswitch and the electrical connector. The interior of the switch housing is sealed from the external environment so that the mechanical components of the switch are protected from the environment.

The utility model relates to the technical field of tapping, in particular to an in-mold automatic tapping device which comprises an upper mold, mold columns are fixedly installed on the periphery of the bottom end of the upper mold, a lower mold is installed at the bottom end of the upper mold, open grooves are formed in the corners of the periphery of the lower mold, a tapping machine is installed on the lower mold, and the tapping machine is connected with the mold columns. A moving block is installed in the tapping machine, a screw tap is installed at the side end of the moving block, and a workpiece is arranged on the other side of the screw tap. According to the tapping device, after the die is completely closed in the working state, the purpose of thread forming is achieved through spiral movement of the extrusion tap, the in-die tapping machine combines stamping and tapping actions of a part needing to be tapped into a whole, tapping and stamping are directly and synchronously carried out on a punching machine, the working time can be saved by using the in-die tapping machine, and the working efficiency is improved. The arranged tapping device can reduce the damage probability of a screw tap through accurate positioning of the in-mold tapping machine, and meanwhile the probability of waste products caused by feeding errors can be reduced.

Grounding systems, grounding components, and methods of manufacturing, assembling, and using the same to provide dynamic and adaptable electrical grounding. In one aspect, an adaptable grounding system is provided. The grounding system may include a plurality of grounding components positioned to adaptively engage with an electrical-grounding surface, e.g., facilitating improved electrical contact. The grounding components may be mounted on a first structure which is opposite to a second structure that includes an electrical-grounding surface. The first structure and / or the second structure may be adjustable, e.g., between at least a first configuration, e.g., a non-grounded configuration, and a second configuration, e.g., a grounded configuration. The grounding systems, components, and related methods described herein may be used with different manufacturing systems and processes including those that are electrically-driven.

A device (8) for predicting at least one physical parameter measured by a sensor rolling element in a rolling bearing of a machine is proposed. The device (8) comprises: - first means of determination (40) which are designed to determine at least one set of machine operating conditions which are representative of the operating state of the machine, - a memory (41) that stores a conditional imputation model (42) trained to predict the physical machine parameter from the machine operating conditions, and - Implementation tools (43) that are trained to implement the conditional imputation model (42).

The application discloses a dust collector intelligent control system and method and a down-the-hole drill, wherein the electric control system comprises a dust raising sensor, a motor rotating speed sensor, a power device rotating speed sensor and a controller; the dust raising sensor, the motor rotating speed sensor and the power device rotating speed sensor are electrically connected to the controller respectively; the hydraulic control system comprises a power device, a hydraulic oil tank, a hydraulic pump, a dust collector motor control valve and a dust collector; the hydraulic oil tank is connected to the hydraulic pump, the dust collector motor control valve and the dust collector through hydraulic pipelines respectively; the dust collector motor control valve is connected to the hydraulic pump and the dust collector through hydraulic pipelines respectively. The dust collector intelligent control system can realize the accurate control of the matching between the motor rotating speed and the dust removal effect when the dust collector is working, thereby effectively improving the construction site environment; the dust collector motor brake valve is arranged, the motor can be rapidly braked, and the dust removal efficiency of the filter element of the dust collector can be effectively improved.

A tandem sub for a perforating gun assembly. The perforating gun assembly is used in a wellbore completion operation. The tandem sub first comprises a tubular body. The tubular body has a first end, a second end opposite the first end, and connection threads residing at each of the first and second ends. The tubular body has an internal bore, and tapered shoulders residing along the internal bore proximate each end. Each tapered shoulder defines an angle relative to the central axis of the internal bore. Further, each tapered shoulder forms a race dimensioned and configured to receive roller bearings. The roller bearings may be part of a grounding path. A cage secures the roller bearings against the race.

The invention relates to the technical field of bearings, in particular to a dustproof sealing bearing for a rocker arm of a coal mining machine, which comprises an inner ring, an outer ring and dustproof components respectively arranged on the end faces of the two sides of the inner ring and the outer ring. The dustproof assembly comprises a sealing assembly and a baffle which are sequentially arranged from inside to outside in the axial direction. The side, away from the baffle, of the sealing assembly abuts against the inner ring and the outer ring so as to prevent external dust from entering the raceway space between the inner ring and the outer ring. The inner surface of the baffle is provided with a partition plate which is connected with the sealing assembly and is of a vortex-shaped structure. The sealing assembly and the baffle are fixed to the outer ring and the inner ring correspondingly and can synchronously rotate along with relative rotation between the inner ring and the outer ring. When the rotating direction of the baffle is opposite to that of the partition plate, the partition plate can push dust on the surface of the sealing assembly to move towards the outer ring. The dustproof sealing bearing is good in dustproof sealing performance, simple in overall structure and low in manufacturing cost, and the problems that dust enters the bearing to affect the service life of the bearing and frequent maintenance is needed are effectively solved.

Grounding systems, grounding components, and methods of manufacturing, assembling, and using the same to provide dynamic and adaptable electrical grounding. In one aspect, an adaptable grounding system is provided. The grounding system may include a plurality of grounding components positioned to adaptively engage with an electrical-grounding surface, e.g., facilitating improved electrical contact. The grounding components may be mounted on a first structure which is opposite to a second structure that includes an electrical-grounding surface. The first structure and / or the second structure may be adjustable, e.g., between at least a first configuration, e.g., a non-grounded configuration, and a second configuration, e.g., a grounded configuration. The grounding systems, components, and related methods described herein may be used with different manufacturing systems and processes including those that are electrically-driven.

The dust falling device comprises a dust falling box, a spraying opening is formed in the bottom face of the dust falling box in an open mode, a dust falling spraying assembly is arranged in the dust falling box, the spraying assembly communicates with a water supply assembly, and multiple sets of telescopic supports are hinged to the edge, located on one side of the spraying opening, of the dust falling box. By arranging the dust falling box with the spraying assembly, when drilling operation is needed, the dust falling box is supported above the drilling operation position through the multiple sets of telescopic supports, the spraying assembly is started, water mist is sprayed out of the spraying assembly, and therefore dust falling in the drilling operation process is completed; meanwhile, due to the arrangement of the dust falling box and the multiple sets of telescopic supports, the device can be conveniently carried by workers; the water supply assembly can be directly connected to a water supply pipeline in a roadway, and therefore stable dust falling can be achieved when a worker drills holes in different positions.

The invention discloses drilling dust reduction equipment for ore extraction construction, and relates to the technical field of separated dust treatment.The drilling dust reduction equipment comprises a front cavity, a middle cavity and a rear cavity, and the front cavity, the middle cavity and the rear cavity are internally provided with a grading acceleration mechanism and a locking separation mechanism correspondingly; a combined outer frame is assembled among the outer surface walls of the front cavity, the middle cavity and the rear cavity, the tail end of the rear cavity is communicated with a rear protective cover, an exhaust connector is inserted in the center of the rear protective cover, the graded acceleration mechanism comprises a coupler, the two ends of the coupler are each provided with a fan blade assembly, and the fan blade assemblies are connected with the rear protective cover in a sleeved mode. The locking and separating mechanism comprises a conical protective sleeve and an electrostatic adsorption assembly, dust kinetic energy is supplemented section by section in a graded acceleration mode, it is guaranteed that dust can fully enter a rear-section treatment structure, the situation that due to weakening of kinetic energy, a large amount of dust is retained in a front-section structure, a conveying channel is blocked, and the service life of the conveying channel is prolonged is avoided. And the equipment is always in an optimal dust suction state.

A grasp-activated power switch has a switch body, an outer conductive shell covering the switch the body, and a tool body. The switch body has an open-ended channel. An upper and lower conductive band are formed about the inner surface of the channel and are electrically separated from one another. An outer conductive band on the outer surface of the switch body is electrically coupled to the upper band. An outer conductive surface on the outer surface of the switch body is electrically coupled to the lower band. The tool body is electrically separated from the inner surface of the channel and includes a first and a second pin extending inwards. One of the pins is coupled to a motor and the other pin is coupled to a battery so that a manual grasping force applied to the outer shell completes the electrical connection to energize the motor.

Bearing assemblies, apparatuses, systems, and methods include bearing assemblies with bearing elements that are at least partially contained in the bearing assembly and components thereof.

The present invention provides a TSP bearing for a rotary guide tool and a manufacturing process thereof, which relates to the technical field of bearings and comprises: a seat ring, a shaft ring, a blocking unit, a positioning unit, a multifunctional unit and a detection unit; the shaft ring is arranged directly above the seat ring, and a circle of tapered rollers is arranged between the seat ring and the shaft ring; the blocking unit is installed inside the seat ring; the positioning unit is installed outside the circle of tapered rollers; the multifunctional unit is installed on the positioning unit; the detection unit is installed on the positioning unit, and the detection unit is used to detect the wear of the seat ring, the shaft ring and the circle of tapered rollers; the present invention plays a temporary storage role for sundries and wear debris of parts entering during operation, thereby avoiding the sundries and wear debris affecting the subsequent service life; and solves the problem that the sundries and wear debris cannot play a temporary storage role for sundries and wear debris of parts entering during operation, resulting in the sundries and wear debris affecting the subsequent service life of the TSP bearing.

A bearing assembly for an electrical motor of an ESP pump assembly comprising an outer bearing sleeve with an inner surface and an anti-rotation device rotationally coupling the outer sleeve to a stator and an inner bearing sleeve with an outer surface and an anti-rotation device coupling the inner bearing sleeve to a drive shaft. A fluid film gap located between the outer surface and the inner surface generates a high pressure zone and a low pressure zone in response to a rotational motion of the inner bearing sleeve relative to the outer bearing sleeve. The high pressure zone generates a fluid exit zone and the low pressure zone generates a fluid inlet zone for the working volume of fluid within the fluid film gap. A fluid supply path with ports at the sides of the bearing can exchange a volume of cooling fluid with the volume of working fluid within the fluid film.

The invention provides a drilling tool thrust bearing structure for deep well oil exploitation, and relates to the technical field of bearing structures, the drilling tool thrust bearing structure comprises a static ring assembly, a movable ring assembly and a ball assembly, the static ring assembly comprises an outer static ring, a lower-section raceway is formed in an inner ring of the outer static ring, the movable ring assembly comprises an inner movable ring, and a lower-section raceway is formed in an outer ring of the inner movable ring; the outer side wall of the inner moving ring is provided with an upper-section raceway, the ball assembly comprises a large ball, a small ball, a large elastic retainer and a small elastic retainer, and the large ball and the small ball are both located at the lower-section raceway and the upper-section raceway between the static ring assembly and the moving ring assembly. A rigidity-adjustable ball array is formed by connecting a large elastic retainer, a small elastic retainer and an elastic beam, and accurate positioning of balls is ensured through a double-curvature curved surface raceway; degradable polymer capsules are arranged to be filled with high-temperature lubricating grease, and oil is supplemented as required according to ball abrasion; the inner moving ring is matched with the shaft through a concave-convex spherical surface, the axis angle is automatically adjusted to compensate the deflection amount, and edge contact abrasion is avoided.

Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3 / grams (“G·cm3 / g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

The invention discloses a using method of a device for treating anchor rod drilling dust pollution through pneumatic water particle swarm fluid, belongs to the field of mine safety production, and is suitable for treating associated dust in the mine production process. The device is characterized in that the device is simple in structure and convenient to operate, the main purpose of safe production in the tunneling process is achieved, the treatment problem that dust escapes complexly under the condition of original stress change is solved, the treatment effect is obvious, the efficiency is high, the surface and the cost are treated at the same time, and the device plays a role in protecting safe production of mines and has good economic benefits. And the problem that the dust escapes from the drilling hole of the anchor rod is fundamentally solved. According to the invention, the difficulty in treating the associated dust during drilling of the anchor rod becomes an event which can be easily realized in daily work and life of people.

A power tool includes a tool body, a grip, a trigger, a locking switch, and a locking retainer. The locking retainer is configured to apply a locking force to the locking switch to keep the locking switch in the locking state. During a process in which the locking switch is operated to switch from the locking state to the unlocking state, the locking force changes from large to small.

Rotary switch for power tools, comprising: • a housing (10) which has a first partial area (11), a feed area (12) and a second partial area (13) which are connected to one another, wherein an annular groove (14) is formed between the first partial area (11) and the second partial area (13), which is designed to match the feed area (12); • a spring element (20) which is placed on the intake area (12) and arranged in the annular groove (14), wherein the spring element (20) has a first end (21) and a second opposite end (22), wherein the first end (21) is fixedly attached to the housing (10); • at least one first electrode (30) which is fixedly mounted in the annular groove (14), wherein the first electrode (30) is located outside the spring element (20) which is arranged between the first electrode (30) and the intake region (12); • an outer ring (40) which is rotatably positioned on the intake region (12), the outer ring (40) being arranged outside the spring element (20) and the first electrode (30) and having an inner circumferential surface (41), the outer ring (40) being provided for rotational adjustment between a first position and a second position, the second end (22) of the spring element being fastened to the outer ring (40); • at least one second electrode (50) which is connected to the inner peripheral surface (41) of the outer ring (40); • a battery (60) electrically connected to the first electrode (30); and • a drive source (70) electrically connected to the battery (60) and the second electrode (50), wherein • in this way, the second electrode (50) and the first electrode (30) are not aligned with each other and there is an open circuit between the battery (60) and the power source (70) when the outer ring (40) is in the first position, wherein the first electrode (30) is electrically connected to the second electrode (50) when the outer ring (40) is in the second position and the battery (60) is connected to the power source (70).