37results about How to "Reduce axial friction" patented technology

The invention discloses a compound vibrating well-drilling tool which comprises a sleeve, a vibrating short joint, a vibrating short joint chuck, a screw motor, a conversion short joint connected with the lower end of the screw motor, an annular disc sleeved at the upper end of the conversion short joint, a hydraulic cylinder installed at the lower end of the conversion short joint, an impact short joint arranged in an inner cavity of the hydraulic cylinder and a torque transmitting short joint, wherein the vibrating short joint, the vibrating short joint chuck, the screw motor, the conversion short joint, the annular disc, the hydraulic cylinder, the impact short joint and the torque transmitting short joint are arranged in sequence from top to bottom. The well-drilling tool can be installed at different positions in a well-drilling column, the drilling column generate axial and circumferential high frequency compound vibration through the tool, and phenomena including 'pulling press' and 'stick slip' in the large-inclination well drilling process are eliminated, thereby remarkably improving mechanical drilling speed, prolonging the service life of a drill bit and reducing well-drilling cost.

The invention discloses a master-slave intervention operation robot slave side operating device and a control method thereof, and belongs to the technical field of machinery manufacturing. The device comprises a mobile platform, a shell, a body, a telescoping mechanism, two locking switching mechanisms and a guide wire; the shell is installed on a base of the mobile platform, the body is assembled in the shell, one end of the telescoping mechanism is fixedly connected with the shell, the other end of the telescoping mechanism is fixedly connected with an operating table, and the two locking switching mechanisms are arranged on the outer side of the shell and the outer side of the telescoping mechanism respectively. According to the master-slave intervention operation robot slave side operating device, by optimally designing the slave side body, the telescoping mechanism and the locking switching mechanisms, the problems that guide wire pushing is bent, the pushing force is difficult to measure, assembling and disassembling are inconvenient, and guide clamping and loosening switching is uncontrollable are solved, and the advantages of being reasonable in structure, easy to machine and manufacture and convenient to control are achieved.

The invention relates to a sealing element, in particular to a low-friction oil seal for a shock absorber. The oil seal comprises a framework and an oil seal body. The oil seal body comprises at least one sealing lip and a dust-proof lip. The oil seal is characterized in that axial parallel veins are arranged on annular sealing surfaces formed by the sealing lips. The sealing lips comprise a first sealing lip and a second sealing lip, and first axial parallel veins and second axial parallel veins are arranged on the annular sealing surfaces formed by the first sealing lip and the second sealing lip respectively. Third axial parallel veins are arranged on an annular sealing surface formed by the dust-proof lip. The low-friction oil seal has the advantages that forming of critical lubricating oil film between contact surfaces of the sealing surfaces and a shock absorber shaft is facilitated, so that the contact area is reduced; and lubricating oil can be stored between the axial veins conveniently, so that the friction coefficient between the oil seal and the shock absorber shaft is reduced, the friction between the oil seal and the shock absorber shaft is reduced on the premise that the radial sealing force is not changed, and the service life of the oil seal is increased.

The invention discloses a rhythm-type high-frequency hydraulic pulse oscillation resistance-reducing actuator, and belongs to the technical field of petroleum operation equipment. The rhythm-type high-frequency hydraulic pulse oscillation resistance-reducing actuator is composed of a peristaltic short section and a power short section which are combined; the peristaltic short section and the powershort section are each in a hollow tubular shape; the peristaltic short section is in threaded connection with an upper joint on the upper part of the power short section through a lower joint on thelower part of the peristaltic short section, so that a pulse channel is formed between the peristaltic short section and the power short section; a lower opening of the upper joint is connected witha stator sleeve; a screw rotor is arranged in the stator sleeve in a matched mode; the upper end of the screw rotor is in clearance fit with a rotor front support, and a rotating valve disc is coaxially fixed to the lower end of the screw rotor; the rotating valve disc is in eccentric clearance fit with a fixed valve disc fixed to the stator sleeve; and a lower opening of the stator sleeve is connected with a drilling tool lower joint. According to the rhythm-type high-frequency hydraulic pulse oscillation resistance-reducing actuator, static friction is converted into dynamic friction with the tiny amplitude, axial friction and circumferential friction are reduced, and thus the problems of motor back-pressure, drill bit damage, drilling tool over-compression, drilling tool jamming, torquefluctuation, drilling tool reversing risk increasing, drilling tool fatigue and the like are solved.

The invention relates to a motor assembly and a location and installation method thereof. The motor assembly comprises a motor and a gear box connected with the motor, wherein, the motor comprises a motor shell, an armature shaft arranged in the motor shell, a push stopping plate arranged at the bottom of the motor shell and a straight bearing arranged on the push stopping plate; the gear box comprises an output gear shaft, a drive disk which drives the output gear shaft to rotate, a gear, a butter cushion arranged in the inner cavity of the gear, a straight bearing assembly and a supporting seat provided with a bearing; the push stopping plate and the supporting seat are respectively provided with a spherical surface; the armature shaft passes through the straight bearing, the straight bearing assembly and the inner hole of the bearing in the supporting seat in sequence, and the two end surfaces of the push stopping plate are respectively contacted with the spherical surfaces of the push stopping plate and the supporting seat; the armature shaft is provided with a worm and is provided with a commutator; the worm is positioned between the straight bearing assembly and the supporting seat; the worm drives the gear in the gear box to rotate along the rotation of the armature shaft. The invention can reduce string vibration of motor output shaft at rating load, lower the noise of the motor, and improve output efficiency of the motor.

The invention relates to a reciprocating type low-pressure and high-frequency hydraulic power pulse vibrator and belongs to the field of vibration or oscillation method well drilling. The reciprocating type low-pressure and high-frequency hydraulic power pulse vibrator is composed of a vibration short joint and a power short joint. The vibration short joint is formed in the manner that a spline core shaft is inserted in a spline outer cylinder and a piston outer cylinder, and a disc spring is installed in the circular clearance between the middle portion of the spline core shaft and the pistonouter cylinder. The lower end of the spline core shaft is fixedly connected with a piston inner cylinder. A piston I, a piston II and a piston III are sequentially fixed to the piston inner cylinderfrom top to bottom, and an isolation ring I and an isolation ring II are fixed to the inner surfaces of the parts, between the piston II and the piston II and between the piston II and the piston III,of the piston outer cylinder correspondingly. A spiral worm is arranged in a stator sleeve in the axial direction, the lower end of the spiral worm abuts against a disc support, and a connecting rodhinged to the lower end face of the spiral worm is hinged to the center position of the upper end of a vibrator valve cone which is arranged in the stator sleeve in a clearance fit manner. By means ofthe reciprocating type low-pressure and high-frequency hydraulic power pulse vibrator, the pressure loss of the tool can be reduced by 45%, and meanwhile the problems of motor backing pressure, drillhead damage, drilling tool clamping, torque fluctuation, drilling tool fatigue and the like are solved.

The invention relates to the technical field of seal components and particularly discloses a low-friction reciprocating motion seal component. The low-friction reciprocating motion seal component comprises an annular support frame and an annular elastic seal body, wherein the annular elastic seal body comprises at least one seal lip. The low-friction reciprocating motion seal component is characterized in that a concave-convex girdle is arranged on an annular seal surface on which the seal lip is formed, and a plurality of projections or pits are arranged on the concave-convex girdle; the seal lip comprises a first seal lip and a second seal lip, and a first concave-convex girdle and a second concave-convex girdle are respectively arranged on annular seal surfaces which are formed by the first seal lip and the second seal lip; the projections or the pits are in a shape of a semi-sphere, a box, a truncated cone or a polygonal frustum. The low-friction reciprocating motion seal component has the beneficial effects that friction between the seal body and a shaft is reduced under the condition of ensuring that the seal body has sufficient radial seal pressure, so that the motion friction of a reciprocating mechanism is reduced; the service lives of the seal body and the motion shaft are prolonged under the condition of ensuring seal.

The invention relates to a rotary vane type garbage can which comprises a can cover, a can body, a can bottom, an inner can and a lifting handle, wherein the can cover is arranged right above the can body; the can bottom is positioned under the can body; the inner can is positioned inside the can body; the inner can is arranged on the upper end face of the can bottom; two lifting lugs are symmetrically arranged at upper ends of the inner can; the lifting handle is arranged between the two lifting lugs of the inner can; four annular buckles are symmetrically arranged above the can bottom and are clamped at the lower end of the can body. According to the rotary van type garbage can disclosed by the invention, the can bottom adopts a buckle connection mode, so the rotary vane type garbage can is easy for manufacturing and is simple in structure; in addition, workers can conveniently assemble the rotary vane type garbage can; the opening and closing functions can be quickly realized. The rotary vane type garbage can has the advantages of simple structure, simplicity and convenience for operation, good sealing performance, short reaction time of vanes, low driving sound of gears, small size, low cost, good appearance and shape effects and the like.

The invention relates to a rotary blade type intelligent trash can and a control circuit thereof. The rotary blade type intelligent trash can comprises a can cover, a can body, a can bottom, an inner can and a handle, wherein the can cover is arranged over the can body; the can bottom is located under the can body; the inner can is located in the can body and installed on the upper end face of the can bottom; the handle is installed between two lifting lugs of the inner can; four annular hasps are symmetrically arranged on the upper side of the can bottom and are clamped to the lower end of the can body. The control circuit comprises a master control module, an H bridge motor drive module, an infrared detection module, a signal amplification module, an indication module and a phase reversal module, wherein the infrared detection module is used for forming an electric pulse signal, the signal amplification module is used for amplifying the electric pulse signal of the infrared detection module, and the phase reversal module is used for providing a switch signal to the master control module. The rotary blade type intelligent trash can and the control circuit thereof can achieve the rapid and intelligent opening and closing function, and have the advantages that the structure is simple, operation is simple and convenient, closing performance is good, blade response time is short, gear transmission noise is low, the size is small, cost is low and the appearance shape effect is good.

The invention provides a follow-up type automatic compensation polished rod sealing device and belongs to the technical field of oil field machinery. The follow-up type automatic compensation polished rod sealing device comprises a sealing cover, a sealing shell, a pressure adjusting spring, a translation pressing plate, an upper follow-up platform, a follow-up packing box, a lower follow-up platform and a sealing foundation support; the follow-up packing box is in close contact with a polished rod, parallel movement in any direction in the horizontal plane is conducted by means of the upper follow-up platform and the lower follow-up platform, and the problem of eccentric wear is effectively solved; the follow-up packing box is provided with compensation packing and centralization packing, close contact with the polished rod can be achieved under continuous pressure, the sealing effect is improved, and packing wear can be compensated continuously; an annular cavity formed by a sealing cover retaining ring and the sealing shell is filled with lubricating oil and can provide continuous lubrication and oil seal for the upper follow-up platform, the lower follow-up platform, the polished rod and even the packing, radial and axial friction is reduced, meanwhile multiple purposes of saving energy, sealing, prolonging the service life and the like are achieved, and the follow-up type automatic compensation polished rod sealing device can be widely applied to wellhead sealers of oil field pumping units with rods.

The invention discloses a general-purpose flowmeter based on the wing principle, which includes a wing-type sensing element arranged in a pipeline, and a detection signal transmission device connected with the sensing element; the sensing element includes a plurality of spaced distribution and The disc wings are coaxially connected in series through the shared wing shaft arranged horizontally. The wing axis is perpendicular to the pipe axis, and the cross section of the disc wing is D-shaped; The pipe wall on the side of the arc curved surface is provided with a supporting cylinder sleeve, and the outer end of the supporting cylinder sleeve protrudes from the pipe; the two ends of the shared wing shaft are respectively erected at two corresponding places on the pipe wall through the shaft sleeve and the supporting cylinder sleeve; The wing shaft is rotatable and can translate left and right; the detection signal transmission device is connected to the pressure transmitter through the end face of the common wing shaft on the side of the curved surface of the D word through a hydraulic jack type pressure amplifying device. High reliability and sensitivity, free pipeline layout, convenient maintenance, small pressure loss, simple structure, and can adapt to various fluid measurement.

A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (1); a core cylinder (9) having an inner chamber in communication with the screw drilling tool (305) located downstream, so that drilling fluid from the inner chamber of the upper joint (1) flows to the screw drilling tool (305) through the inner chamber of the core cylinder (9) to allow the screw drilling tool to perform drilling; a lower joint (16) fixedly arranged at a lower end of the core cylinder (9); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder (9) and an inner wall of the upper joint (1), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint (1).

The invention relates to the technical field of underground tunnel excavation construction, in particular to a hundred-bead supporting plate device for preventing a shield tunneling machine from headfalling and a construction method thereof. The device comprises hundred-bead supporting plate units, a jack, a base and a steel sleeve; the bottom of the steel sleeve is provided with a hole opening used for being penetrated by the jack; the output end of the jack is fixedly connected with the bottoms of the hundred-bead supporting plate units; the outer wall of the jack is welded to the hole opening; the bottom of the jack is connected with the top of the base located on the ground of a receiving well; each hundred-bead supporting plate unit comprises an arc-shaped supporting plate, balls, alimiting strip and an arc-shaped cover plate; each arc-shaped supporting plate is a steel plate of an arc-shaped structure; the curvature of each arc-shaped supporting plate is the same as the curvature of the outer surface of the shield tunneling machine; and semispherical grooves used for containing the balls are evenly distributed in the upper surface of each arc-shaped supporting plate. According to the hundred-bead supporting plate device for preventing the shield tunneling machine from head falling and the construction method thereof, the construction risk is greatly reduced, the grouting construction requirement in the steel sleeve is greatly reduced, environmental protection is achieved, the construction difficulty is reduced, the construction cost is saved, and the construction progress is accelerated.

The extrusion type peristaltic pump comprises a body, a transmission part, a first pressing unit, a second pressing unit, a limiting plate and a hose, the limiting plate is fixedly connected with the body, and the hose comprises a first branch pipe and a second branch pipe; the first branch pipe is arranged between the limiting plate and the first pressing unit, and the first pressing unit is driven by the transmission part to do reciprocating motion and used for pressing the first branch pipe; the second branch pipe is arranged between the limiting plate and the second pressing unit; the second pressing unit is driven by the transmission part to reciprocate and used for pressing the second branch pipe, the first branch pipe and the second branch pipe are alternately pressed, and the hose continuously discharges liquid. According to the scheme, the first branch pipe and the second branch pipe alternately extrude and convey the fluid to the gathering pipe, finally continuous conveying of the fluid in the gathering pipe is achieved, fluid cutoff is avoided, the flow stability in the fluid conveying process is improved, and pulsation is reduced.

In accordance with at least one aspect of this disclosure, a stationary housing for a rotational mechanical device includes an interior sealing surface configured to receive a rotationally stationary seal assembly that is allowed to move axially to track a journal shaft, wherein the interior sealing surface includes an anti-frictional coating.

The invention discloses a vertical streamline tunnel wheel supercharger, and belongs to the field of turbochargers. The vertical streamline tunnel wheel supercharger comprises a streamline tunnel typeair compressor wheel, a streamline tunnel type turbine, an air compressor shell, a turbine shell and a rotating shaft, wherein the streamline tunnel type gas compressor wheel and the streamline tunnel type turbine are installed at the two ends of the rotating shaft correspondingly so that a supercharger rotor can be formed, the rotating shaft is vertically arranged and forms a vertical structure.According to the vertical streamline tunnel wheel supercharger, the streamline tunnel type turbine and the gas compressor wheel are adopted and matched with an external contour type air bearing to beinstalled in a vertical structure, and the beneficial effects of improving the rotating speed, improving reliability and stability, reducing leakage losses and reducing the size and the weight can beachieved.