313 results about "Pumpjack" patented technology

and a tube connecting the dischar e side of the pump with a check valve in it, and a check valve in it at the pump end. The pump ends up being used to close the valve body's outer cover so that the pump can be closed after the oil drain plug is filled in. When the pump is filled with oil, the pump ends up being used to close the valve body.

The invention relates to the technical field of oil exploitation, in particular to a hydraulic control well flushing valve and a double-pump-barrel oil well pump capable of flushing wells, the hydraulic control well flushing valve comprises an outer barrel body and a piston rod arranged in the outer barrel body, and a switch assembly connected with one end of the piston rod is arranged in a connector at one end of the outer barrel body; the other end of the outer cylinder is provided with a hydraulic driving assembly enabling the switch assembly to act. The connector is provided with an overflow control component which enables well flushing fluid to enter the outer cylinder so as to drive the hydraulic driving assembly to act. The double-pump-barrel oil well pump capable of washing the well comprises a hydraulic control well washing valve and an oil well pump body, one end of the oil well pump body is connected with an oil pipe, and the other end of the oil well pump body is connected with the hydraulic control well washing valve through a tail pipe. The well washing valve has the beneficial effects that the well washing valve is matched with the double-pump-barrel oil well pump for use, forward washing circulation can be established under the condition that operation is not carried out, wax is softened and driven out of an oil pipe, operation is easy and convenient, normal work of a sucker rod cannot be affected, and the yield of an oil well is guaranteed.

The invention relates to the technical field of hydraulic lifters, and discloses an intelligent control hydraulic lifting oil extraction device which comprises an outer oil pipe and a small oil pipe penetrating through the middle of the outer oil pipe. A hydraulic cylinder barrel plunger, an oil well pump plunger, an oil well pump barrel, a traveling valve, a fixed valve and a filter screen pipe are sequentially arranged below the hydraulic cylinder barrel from top to bottom; the centralizer assembly is arranged between the outer oil pipe and the hydraulic cylinder barrel, the centralizer assembly comprises a supporting pipe fitting fixed between the outer oil pipe and the hydraulic cylinder barrel, a positioner is arranged at the connecting end of the supporting pipe fitting and the hydraulic cylinder barrel, and a telescopic rod piece is movably installed in the supporting pipe fitting. The hydraulic cylinder barrel can be centered and stably positioned through stress energy release of the hydraulic cylinder barrel in the power liquid input and oil extraction process, working deviation and use eccentric wear of the hydraulic cylinder barrel caused by external force potential energy are avoided, and the overall service life of the oil extraction device is prolonged.

The invention discloses a lubricating oil system of an aviation turboprop engine. The lubricating oil system comprises a lubricating oil supercharging device, an oil-gas separation device, a lubricating oil return device, a lubricating oil filtering device, a lubricating oil monitoring device and a connecting guide pipe communicating all the devices. The lubricating oil supercharging device comprises a main lubricating oil pump, an auxiliary lubricating oil pump and a torque measuring pump; the oil-gas separation device comprises a ventilation oil tank, an air separator and an oil mist separator; the lubricating oil return device comprises a lubricating oil tank, a lubricating oil radiator, a middle and rear bearing oil well pump, a transmission box oil well pump and a direct-current electric lubricating oil pump; the lubricating oil filtering device comprises a lubricating oil filter and a middle-rear bearing oil return filter; the lubricating oil monitoring device comprises a temperature metal chip annunciator and a magnetic chip detection annunciator. Appropriate lubricating oil pressure and oil quantity are provided, lubrication and heat dissipation of friction surfaces of parts in an engine are improved, and the use reliability of the engine is improved.

The invention relates to an automatic flushing screen pipe, and belongs to the technical field of oil well oil pumping equipment. The device comprises an upper connector which is in threaded connection with an oil well pump, the upper portion of a center pipe is sleeved with a supporting base, and a supporting block and a third spring are installed in a groove of the supporting base; the lower portion of the center pipe is sleeved with the screen pipe, and a liquid inlet valve hole and a liquid outlet valve hole are formed in the middle of the center pipe and provided with a liquid inlet check valve set and a liquid outlet check valve set respectively. And the lower end of the flushing pipe penetrates through the locking ring to be fixed. And a piston chamber is formed among the central pipe, the supporting seat, the outer protective pipe and the valve ring. The piston chambers are alternately expanded and compressed by utilizing the relative movement of the central pipe and the supporting seat during the up-down stroke of the oil well pump, gas and liquid are driven to wash the screen pipe through the washing holes, and meanwhile the screen pipe is driven to rotate. The screen pipe can be effectively prevented from being blocked, the service life of the screen pipe is prolonged, and the oil well yield is improved.

The invention relates to the technical field of oil field layered mining, in particular to a same-well layered injection-production pipe column. The same-well layered injection and production pipe column comprises a driving pipe column and a working pipe column, an oil well pump is arranged at the bottom end of the driving pipe column, an injection and production sealing connector is arranged below the oil well pump, and the flowing direction of underground fluid is changed through the injection and production sealing connector; the working pipe column is divided into a plurality of working sections through packers, and a water distributor or a bottom-hole regulator which works in a one-way mode is arranged in each working section. The top end of the working pipe column is provided with an insertion pipe detachably connected with the injection-production sealing connector. According to the same-well layered injection and production pipe column, the injection and production sealing connector is arranged to be matched with connection and separation between the insertion pipe and the injection and production sealing connector to achieve switching of a water injection channel and an oil production channel, and the same-well layered injection and production work can be continuously conducted under the condition that the pipe column is pulled out of a well opening through cooperation with the water distributor and the bottom-hole regulator which work in a one-way mode; the tubular column is simple in structure, low in operation difficulty and long in working time.

The hydraulic pumping unit convenient to adjust comprises a support, an oil pumping assembly is arranged at the top of the support and comprises an oil well pump, a traction rope and a wobble wheel, the wobble wheel is located in a wobble groove and connected with a support bearing, the traction rope is wound on one side of the wobble wheel, and the wobble wheel is connected with the support bearing. The oil well pump is connected to one end of the traction rope, the assembly used for swing winding comprises a first telescopic rod installed on one side of the support, a balance weight disc and a first motor, the first motor is in transmission connection with the balance weight disc, and the assembly used for angle adjustment comprises an adjusting disc, a supporting base, a second motor and an assembly used for limiting and fixing. The device comprises a gear, a rack and a second telescopic rod. The length of the traction rope is adjusted through the first motor and the balance weight disc, so that the height of the oil well pump is adjusted, the gear is limited and fixed through the rack, the wobble wheel is fixed, and the oil pumping effect can be prevented from being affected.

The application discloses a kind of oil testing well continuous pumping equipment, it is related to the technical field of oil and gas equipment, the application is aimed at solving the problem of affecting efficiency caused by the need to disassemble equipment due to adjusting the parameters of pump, the application includes: hydraulic motor and path constraint, hydraulic motor and path constraint are relatively fixed;The output shaft of hydraulic motor is connected with turntable, and the turntable is provided with a chute, which is arranged along the radial direction of the turntable;The path constraint is provided with a slide, which includes two parallel straight segments, two first arc segments at both ends of the straight segments, and a second arc segment on the opposite sides of the two first arc segments;A switching plate is arranged in the slide;When the switching plate is in the first position, the straight segments and the first arc segments are in communication and form a ring;When the switching plate is in the second position, the straight segments and the second arc segments are in communication, forming a longer ring;A support rod is arranged in the slide and the chute, and the support rod is connected with a connecting rod, which is used to connect the pump rod of the oil pump.

The utility model discloses an oil pump cleaning device which comprises a shell, a clamping mechanism, a first cleaning mechanism and a second cleaning mechanism, the clamping mechanism comprises a rotating motor, the output end of the rotating motor is connected with a rotating shaft penetrating through the bottom wall of the shell, a clamping assembly is arranged at the end of the rotating shaft, and the first cleaning mechanism comprises an oil cylinder. An annular partition plate is arranged in the oil barrel, a barrel-shaped filter screen is arranged at the inner ring of the annular partition plate, an oil discharge straight pipe and an oil inlet straight pipe are arranged on the side wall of the oil barrel, one end of the oil discharge straight pipe is connected with a first oil guide hose located in the barrel-shaped filter screen, an oil well pump is arranged on the outer wall of the shell, and the other end of the oil discharge straight pipe is communicated with the oil well pump through a second oil guide hose. An oil outlet of the oil well pump is connected with a third oil guide hose, a fourth oil guide hose is arranged at one end of the oil inlet straight pipe, the second cleaning mechanism comprises a spraying block right opposite to the clamping assembly, and a liquid storage tank and a liquid pump are arranged outside the shell; the oil pump shell and the inner cavity can be cleaned, and the functions are more complete.

The utility model discloses an impact type oil return prevention device which is applied between a standing valve and a pump cylinder of an oil well pump and comprises a valve body, the top of the valve body is connected to the bottom of the pump cylinder of the oil well pump, the bottom of the valve body is connected to the top of the standing valve of the oil well pump, a blocking cavity is formed in the top of the valve body, and an oil inlet cavity is formed in the bottom of the valve body. The bottom of the blocking cavity is connected with the top of the oil inlet cavity in a penetrating mode, a blocking mechanism is arranged between the blocking cavity and the oil inlet cavity, and the blocking mechanism is used for conducting control over the valve body by sliding and penetrating between the blocking cavity and the oil inlet cavity. The valve body is arranged between the standing valve and the pump cylinder of the oil well pump to control blocking of the oil inlet channel, the blocking mechanism slides and penetrates through the blocking cavity and the oil inlet cavity of the valve body to control opening and closing of the oil inlet channel, and the oil inlet channel can be prevented from being blocked in the well descending construction process of an oil well string under the matched arrangement of the structure. Hard wax, thick oil, dead oil and machine impurities enter the tubing string.

The invention discloses a hanging rope connector and a pump collision operation method, and belongs to the technical field of petroleum pumping units, the hanging rope connector is used for connecting a polish rod and a hanging mechanism, the hanging rope connector comprises a hanger used for being connected with the hanging mechanism, and the hanger is provided with an interval space; the polish rod fixing assembly is used for fixing the polish rod and the hanger, and the polish rod fixing assembly is detachably connected with the hanger; under the condition that the polished rod fixing assembly is supported on the hanger, the polished rod and the hanger are relatively fixed; and under the condition that the polish rod fixing assembly is separated from the hanger, at least part of the polish rod fixing assembly can move relative to the hanger in the interval space. The pump collision operation method comprises the following steps: detaching the locking piece to separate the movable positioning block from the balance main body; the balance body is rotated, and the anti-falling polish rod clamp falls to the hanging part. According to the polish rod clamp, the existing polish rod clamp does not need to be disassembled and assembled repeatedly for unloading, the disassembly operation of the original polish rod clamp is omitted, huge impact on an oil well pump when the polish rod clamp is disassembled is avoided, and the service life is prolonged.

The present invention discloses a continuous tubing jar, comprising a connecting tube, wherein one side of the connecting tube is threadedly connected to a pressure tube, the other side of the pressure tube is threadedly connected to a spline tube, the interior of the connecting tube is threadedly connected to a punching tube, the interior of the pressure tube is slidably connected to a spline shaft, two groups of pistons and sealing rings are oppositely connected at both ends of the outer side of the spline shaft, a plurality of connecting plates are fixedly connected at equal distances to one side of the inner wall of the sealing ring, and a piston is fixedly connected to the end of the connecting plate away from the sealing ring, and wireless liquid sensors are bolted to both sides of the connecting plate. The present invention uses a micro-oil pump and oil pipe inside the sealing ring, and after the piston oil leaks, the oil pump can be used to re-pump the leaked hydraulic oil into the cavity, actively processing the leaked hydraulic oil and avoiding the situation where the device cannot be used after the hydraulic oil is lost.

The utility model provides oil pumping equipment. The oil pumping equipment comprises a base, a movable seat, an execution assembly and a synchronization assembly, the execution assembly comprises a roller, a flexible connecting piece and a driving piece, and the driving piece is used for driving the roller to rotate; one end of the flexible connecting piece is wound on the roller, and the other end of the flexible connecting piece hangs down and is used for extending into a pumping wellhead to be connected with a plunger of an oil well pump; the execution assembly is arranged on the moving seat; the movable seat is movably arranged on the base in the axial direction of the roller; the synchronous assembly comprises a thread transmission pair and a middle transmission mechanism; the transverse movement mechanism is simple and ingenious in structure, the roller and the driving piece of the roller can integrally move transversely along with rotation of the roller, and the transverse movement mechanism is more flexible in structure adjustment, convenient to popularize and wide in adaptation.

According to the powder cutting compressor, a closed die cavity is rapidly formed through linkage of multiple oil cylinders, the extrusion efficiency is improved, multiple times of feeding can be achieved through primary initial pressing, metal compression blocks obtained through final compression and material pushing are larger in density, the space of finished products is further compressed, the compression efficiency is improved, and the production cost is reduced. And meanwhile, the content of residual engine oil or cutting fluid in the metal compression block can be reduced. When the high-power oil cylinder is used for compressing waste materials, oil or cutting fluid is extruded out, the oil or the cutting fluid is discharged through a gap between the second movable bin door and the side wall of the material pressing bin body, namely the oil collecting port, an oil collecting tank is designed below the second movable bin door, an oil well pump can be arranged, and the oil well pump is connected with the oil collecting tank through a pipeline to pump out the oil. Therefore, the powder cutting compressor solves the environment-friendly problems that waste materials of an existing processing plant occupy large storage space, waste of cutting fluid is large, the cutting fluid cannot be recycled, oil or the cutting fluid in the waste materials is prone to dripping on the ground, and consequently the waste materials are dirty, disordered and poor.

The utility model provides industrial oily sewage treatment equipment which comprises a box body, a water inlet is fixedly formed in the upper surface of the box body, a transverse plate is fixedly installed in the box body, a water outlet valve is fixedly installed in the middle of the transverse plate, an oil pumping mechanism and a filtering mechanism are arranged in the box body, and a drainage hopper is fixedly installed at the bottom of the box body. Supporting legs are fixedly mounted at the bottom of the box body; the oil pumping mechanism comprises a fixing plate, three floating balls are fixedly installed on the upper surface of the fixing plate, and an oil suction opening is fixedly formed in the upper surface of the fixing plate. By using the oil pumping mechanism, the floating ball floats along with an oil layer, it is ensured that the oil suction port is located above an oil-water interface all the time, when the oil well pump works, oil is pumped out through the oil pumping pipe and discharged through the oil discharging pipe, the problem of oil-water mixed discharging is effectively solved through the design, meanwhile, the oil suction precision is improved, air cylinder driving is not needed, and shaking interference is reduced.

The invention relates to a segmented sealing whole-barrel type oil well pump, and belongs to the technical field of oil field mechanical oil extraction equipment. The top of the outer pump cylinder is in threaded sealing connection with an upper joint, the lower part of the outer pump cylinder is connected with a connecting cylinder, the connecting cylinder is in threaded connection with a fixed valve group, and the lower part of the fixed valve group is connected with a lower joint; the bottom diameter of the inner pipe of the outer pump cylinder is smaller than the top diameter, a boss ring is arranged on the middle end ring, and the groove ring of the bottom sealing sleeve is embedded into the boss ring. The inner rings of the sealing sleeves are in clearance fit with the plunger to achieve sealed oil pumping after being bored and ground, the convex ring of the topmost sealing sleeve is embedded into the groove of the pressing sleeve, the pressing sleeve is in threaded connection with the upper connector, and the sealing sleeves can be tightly locked by rotating the pressing sleeve. The structure adapts to the pump cylinder bending working condition, eccentric wear is avoided, the sealing performance is guaranteed, and oil pumping is stable and efficient.

The utility model discloses a pressurized jet mixed flushing device under an oil well pump and an oil well pump, and relates to the technical field of oil well pumps, the pressurized jet mixed flushing device comprises an outer shell and further comprises an inner shell, and the inner shell is arranged in the outer shell in a sleeved mode; a protruding ring is arranged on the inner wall of the outer shell, an annular groove is formed in the end face, facing the interior of the outer shell, of the protruding ring, and a water nozzle communicated with the annular groove is arranged on the inner wall of the protruding ring. The inner shell is inserted into the annular groove, and a supporting reset device is arranged between the groove bottom of the annular groove and the inner shell. When the piston moves downwards, the piston collides with the inner shell to enable the inner shell to move downwards to compress the annular groove, compressed liquid in the annular groove releases pressure through the water nozzle, attachments above the fixed valve are fully flushed down to form a mixture, and the mixture is discharged into a tubular column in the ascending process of the piston.

The utility model is suitable for the technical field of ground driving screw oil-well pumps, and provides a large-displacement high-lift screw pump which comprises a screw pump stator, a transition oil pipe and a tail pipe are arranged at the two ends of the screw pump stator respectively, a screw pump rotor is arranged in the screw pump stator in a penetrating mode, and the transition oil pipe is connected with the tail pipe. The two ends of the screw pump rotor extend into the transition oil pipe and the tail pipe correspondingly, and a plurality of S-shaped closed cavities are formed between the screw pump stator and the screw pump rotor. Preferably, the end portion of the tail pipe is sleeved with a limiting stopper reducer union, a limiting stopper baffle is arranged between the limiting stopper reducer union and the end portion of the tail pipe, the limiting stopper baffle is welded to the limiting stopper reducer union, and the tail pipe is in threaded connection with the limiting stopper reducer union. The scheme has the advantages of large discharge capacity and high lift, the liquid production capacity of a single well is greatly improved, and the discharge capacity of the pump is increased; the mechanical power of the oil pumping screw pump is fully utilized, and the oil extraction cost is effectively reduced.

This utility model belongs to the technical field of oil injection devices, specifically an oil-immersed transformer oil injection device, including an oil storage tank, an oil pump, and an oil injection pipe. A connecting component is fixedly installed on the outer wall of the oil injection pipe end. A rotating ring is provided on the connecting component, and a connecting rope is fixedly installed on the outer end of the rotating ring. A flange assembly is rotatably installed at the end of the connecting rope away from the rotating ring via a connecting block. A contact surface sealing gasket is fixedly installed on the outer wall of the flange assembly, and an inner rubber reinforcement layer is fixedly installed on the inner wall of the flange assembly. A connecting ring is integrally installed on the outer end of the flange assembly. This oil-immersed transformer oil injection device allows for quick connection between the transformer oil injection port and the oil injection flange ring, enabling quick and convenient installation and disassembly. It facilitates the limiting and fixing of the oil storage tank and allows for easy adjustment of the position of the arc-shaped baffle, enabling the disassembly and replacement of the oil storage tank.

1. The name of the design product: electric oil pump. 2. The use of the design product: the design product is used for oil pump. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application discloses an oil outlet valve cover of a sucker rod pump and the sucker rod pump. The oil outlet valve cover is characterized in that the outer diameter of the oil outlet valve cover body provided with a liquid flow hole is larger than the inner diameter of a pump barrel, the upper end of the oil outlet valve cover body is connected with a sucker rod string, and the lower end of the oil outlet valve cover body is sequentially connected with a valve body of a sucker rod pump plunger and a traveling valve through a connecting short joint. The oil outlet valve cover body can move up and down in the space formed after the oil pipe is connected with an oil pipe connector and the pump barrel and is always located above the pump barrel. The sucker rod pump in the application can be applied to oil wells requiring small pump depth pumping and can also be normally applied to high-inclination wells and small-diameter sidetracking wells. The application effectively improves the working environment of the oil outlet valve cover, significantly reduces or eliminates the failure of the oil outlet valve cover caused by the above problems, and thus completely avoids the short pump inspection period and high workover operation cost caused by the failure of the oil outlet valve cover.

The utility model relates to an overhung strong on-off hollow gas-proof feedback pump and relates to the technical field of oil pumping pumps, comprising upper and lower pump cylinders arranged side by side from top to bottom, the upper and lower pump cylinders being connected through a sand-set gas-proof coupling, the inner diameter of the sand-set gas-proof coupling being greater than the inner diameters of the upper and lower pump cylinders, a flexible plunger assembly being arranged to reciprocate together between the upper and lower pump cylinders, the lower end of the flexible plunger assembly being connected to a forced mechanical valve group, the lower end of the lower pump cylinder being connected to a bottom pump cylinder, and the oil inlet of the forced mechanical valve group being fixedly connected to a plunger tube that is slidingly constrained in the bottom pump cylinder. The utility model solves the problems of the conventional oil pumping pump, i.e., the oil pumping pump is prone to gas locking during the up and down strokes, which results in a small oil output or even no oil output, seriously affecting the normal operation of the oil well, and the problems of the existing rod column, i.e., the friction between the thick oil and the oil pumping rod is large, the oil pumping rod is subjected to a large force, and the risk of the oil pumping rod being broken off is increased.

This invention provides a single-rod, dual-pump synchronously driven, alternating, continuous, ultra-low alternating load deep pumping lifting system, comprising a double-rod working cylinder, at least one set of gear assembly supports, and two parallel-arranged pumps. The upper end of the gear assembly supports is connected to the double-rod working cylinder, and the lower end is connected to the two parallel-arranged pumps via double-pump couplings. Two parallel rack rods are provided inside the working cylinder, and the lower ends of the two rack rods are connected to the plungers of the two pumps respectively. Racks for meshing with gears installed in the gear assembly supports are fixed on the two rack rods. Flow holes are provided on the gear assembly supports. This new lifting system can significantly reduce or even completely avoid contact fatigue damage at tubing thread connections, reduce the number of wells lying down due to tubing thread leakage, and lower the maintenance costs of mechanically operated wells. It also achieves continuous wellhead drainage and improved pump efficiency through deep pumping with small pumps.

The present application provides a kind of oil well pump, including main mechanism, it includes first pump cylinder, concentrically arranged in the second pump cylinder in the first pump cylinder, and drive channel is extended into to the first pump cylinder and forms sealed connection with the lower end surface of second pump cylinder, oil inlet valve is arranged in the first pump cylinder and is below the drive channel, and drive mechanism, it includes with the inner peripheral surface of the first pump cylinder sealed connection first plunger, oil outlet valve is arranged on the first plunger, and the second plunger is fixed in the lower end surface of the first plunger and extends into the second pump cylinder.The present application can change the overall layout of oil well pump, so that the device can meet the needs of thickened oil well lifting, and can meet the requirement of casing down.

The invention discloses a self-control liquid drainage type environment-friendly sand prevention oil well pump which comprises a pump cylinder assembly, a plunger assembly, an outer pipe assembly, a fixed valve assembly and a liquid drainage valve assembly. The pump cylinder assembly comprises a pump cylinder, and the length of the pump cylinder is L1; the plunger assembly comprises a plunger, the length of the plunger assembly is L, and the length of the plunger is L2; the outer pipe assembly comprises an outer pipe, and the length of the outer pipe is L3; the liquid discharge valve assembly is fixed on the pump cylinder, and the liquid discharge valve assembly is fixed on the pump cylinder; the hydraulic pump is characterized in that when the plunger assembly is lifted upwards to enable the plunger to be separated from the pump cylinder, the liquid discharge valve assembly is in an open state, and at the moment, communication between a rod pipe annulus and an oil sleeve annulus can be achieved. After the liquid drainage device is applied, the liquid drainage task can be completed without damaging the liquid drainage valve assembly.

The present invention relates to the technical field of bearing seats, and specifically to a bearing seat supporting device for a wind turbine generator set, comprising a shell, an inner side of which is sleeved with a main shaft, and is characterized in that a storage box is provided on the upper surface of the shell, the top of the storage box is through-connected with a filling port, the bottom of the storage box is through-connected with an oil pump, the bottom of the oil pump is through-connected with an oil pipeline, the lower surface of the shell is through-connected with an oil pump, the bottom of the oil pump is through-connected with a storage cavity, the bottom of the storage cavity is symmetrically through-connected with a ball valve, and the upper surface of the bottom of the shell is fixedly connected with the storage cavity. When new grease is transported to the interior of the shell by the oil pump, the old grease can be discharged by pressure, so that the residual old grease in the shell is completely removed, thereby avoiding the reduction in lubrication performance caused by the mixing of new and old grease, and the new grease can cover the bearing surface more evenly to form an effective lubricating film, thereby reducing friction and wear.

A supporting and sealing device of a sand setting type rod type oil well pump is characterized in that the upper portion of a leather cup supporting connector is connected to the lower portion of an oil well pipe column, a double-channel supporting leather cup mandrel assembly, a sand setting pipe and a screwed plug are sequentially connected, and the upper inner portion of the double-channel supporting leather cup mandrel assembly is connected to the lower portion of an oil inlet valve of the rod type oil well pump; the middle of the double-channel bearing leather cup mandrel assembly is installed in the leather cup bearing connector, the double-channel bearing leather cup mandrel assembly and the leather cup bearing connector are sealed in a matched mode, the outer diameter of the double-channel bearing leather cup mandrel assembly, the outer diameter of the sand setting pipe and the outer diameter of the screwed plug are smaller than the inner diameter of an oil pumping pipe column, and the outer diameter of the sand setting pipe and the outer diameter of the screwed plug are smaller than the inner diameter of the leather cup bearing connector. The double-channel bearing leather cup assembly is provided with an oil inlet channel and a sand setting channel, the upper end of the oil inlet channel is communicated with an inlet of an oil inlet valve of the rod type oil well pump, the lower portion of the oil inlet channel is communicated with an oil well sleeve, the upper end of the sand setting channel is communicated with an annular space between the rod type oil well pump and the oil well string, and the lower end of the sand setting channel is communicated with the interior of the sand setting pipe.

This invention proposes an oil pumping plunger assembly, an oil pump, and an oil production vehicle, relating to the field of oilfield production technology. The oil pumping plunger assembly includes a sucker rod and a plunger, with a counterweight at the bottom of the plunger. The lower end of the sucker rod is rotatably connected to the plunger. It also includes a rotating mechanism and a first anchoring mechanism. The rotating mechanism is used to drive the plunger to rotate relative to the tubing. The first anchoring mechanism includes a second motor, a first lead screw, a first connecting seat, and a connecting rod assembly. One end of the connecting rod assembly is hinged to the outer wall of the sucker rod, and the other end moves into the inside of the sucker rod and is hinged to the first connecting seat. The first anchoring mechanism ensures that the sucker rod is firmly fixed inside the tubing during the plunger's rotation, preventing the plunger from rotating and causing the sucker rod to rotate. When the plunger and tubing become stuck, the rotation of the plunger can effectively break up the sand deposits between the plunger and the tubing, reducing the friction caused by sand accumulation, thereby effectively relieving the pump jamming phenomenon.

The invention relates to a long-stroke pumping unit with a counterweight flexible rod, which comprises a base, a motor is arranged on the base, a double-input-shaft gear box is arranged at the position of the base corresponding to a motor driving shaft, a brake is arranged at the position of the other input shaft of the double-input-shaft gear box, and the counterweight flexible rod is arranged on the base. A traction wheel set is arranged at the position, corresponding to the output end of the gearbox, of the base and comprises a pair of balance weight traction wheels arranged side by side, and a flexible polished rod traction wheel coaxially arranged is further arranged between the pair of balance weight traction wheels. A stand column is arranged on the base, a balance weight piece is arranged in the stand column, and the balance weight piece is connected with a balance weight traction wheel through a guide mechanism. A transmission guide wheel is arranged at the end, away from the stand column, of the base, a flexible polish rod is wound on the transmission guide wheel, one end of the flexible polish rod is fixed to the flexible polish rod traction wheel, and the other end of the flexible polish rod penetrates through a wellhead sealing device and then is connected with a plunger of a long-stroke oil well pump.

The utility model discloses a refrigerating machine oil extracting device which comprises a limiting device, a supporting device is rotationally installed at the top end of the limiting device, a refrigerating machine oil barrel is placed in the center of the top end of the supporting device, and an aligning device is placed at the top end of the refrigerating machine oil barrel. The alignment device comprises an oil well pump, a flow meter, a supporting sleeve, a hose and a metal pipe, the flow meter is fixedly installed at the front end of the oil well pump, the hose is fixedly installed at the bottom end of the oil well pump, the supporting sleeve is fixedly installed at the top of an outer ring of the hose, and the metal pipe is fixedly installed at the bottom end of the hose. The supporting device comprises a positioning sleeve, guide rods and a supporting base, the guide rods are fixedly installed at the four corners of the top end of the supporting base, and the positioning sleeve is slidably connected to the guide rods in a sleeving mode. Through the arrangement of the alignment device, the supporting device and the limiting device, the purpose of extracting residual engine oil in the oil drum of the refrigerator is achieved.