CN114893395A - Self-adjusting position controller suitable for all-metal conical screw pump - Google Patents
Self-adjusting position controller suitable for all-metal conical screw pump Download PDFInfo
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- CN114893395A CN114893395A CN202210450724.0A CN202210450724A CN114893395A CN 114893395 A CN114893395 A CN 114893395A CN 202210450724 A CN202210450724 A CN 202210450724A CN 114893395 A CN114893395 A CN 114893395A
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- Prior art keywords
- sleeve
- bearing
- tooth
- sucker rod
- adjusting
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- 239000002184 metal Substances 0.000 title claims abstract description 24
- 210000000078 claw Anatomy 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 50
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 3
- 210000003781 tooth socket Anatomy 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a self-debugging position controller suitable for an all-metal conical screw pump, which can solve the technical problem that the adjustment precision and the response speed of the conventional limiting device are to be further improved. The self-debugging position controller comprises a connecting pipe, a rotation limiting structure and an adjusting structure, wherein the rotation limiting structure and the adjusting structure are arranged in the connecting pipe from top to bottom; the adjusting structure comprises an inner adjusting sleeve, an outer adjusting sleeve, a sliding claw sleeve, a spring and a push rod sleeve, wherein the sliding claw sleeve is sequentially sleeved, the inner adjusting sleeve is coaxially connected to the lower end of the sliding claw sleeve, the outer adjusting sleeve is fixed to the inner side of the connecting pipe and sleeved outside the inner adjusting sleeve, the outer adjusting sleeve is in threaded fit with the inner adjusting sleeve, the outer side wall of the sliding claw sleeve is provided with two circles of teeth distributed from top to bottom, the two circles of teeth are arranged in a staggered mode, tooth groove openings of the two circles of teeth are arranged oppositely, the two ends of the spring respectively abut against the push rod sleeve, the sliding claw sleeve is arranged, the upper end of the push rod sleeve abuts against the outer bearing sleeve, the lower end of the push rod sleeve is fixedly connected with the inner adjusting sleeve, the inner side wall of the push rod sleeve is provided with a driving column, and the driving column extends into the space between the first tooth and the second tooth.
Description
Technical Field
The invention relates to the technical field of screw pumps, in particular to an all-metal conical screw pump, and particularly relates to a self-debugging position controller suitable for the all-metal conical screw pump.
Background
Patent CN112096608A discloses stop device of overhead formula of all-metal conical screw pump, after the sucker rod promoted, the device's interior transmission cover was inserted in the outer transmission cover, then the sucker rod was rotatory, enough drive interior, outer transmission cover synchronous revolution, because outer transmission cover is screw-thread fit with the takeover, when outer transmission cover was rotatory, can drive interior, outer bearing housing is followed takeover axis direction and is gone up and down in step, with the support height who adjusts the stopper, promptly under the condition that need not play the pump, adjust the clearance of rotor and stator, improve the pump efficiency, increase of service life. The device is through the rotatory support height in order to adjust the stopper of motor drive sucker rod, nevertheless adjusts the precision and not only receives the influence of motor precision, but also receives the influence of transmission structure precision, and the sucker rod is up to 2000~3000 meters, will influence and adjust precision and response speed.
Disclosure of Invention
The invention provides a self-debugging position controller suitable for an all-metal conical screw pump, which can solve the technical problem that the adjustment precision and the response speed of the conventional limiting device are to be further improved.
The technical scheme is that the self-debugging position controller is suitable for the all-metal conical screw pump and is characterized in that:
comprises a connecting pipe, a rotary limiting structure and an adjusting structure which are arranged in the connecting pipe from top to bottom,
the rotary limiting structure comprises a limiting block, an inner bearing sleeve, an outer bearing sleeve and a bearing, the limiting block is connected with the sucker rod and supported at the top of the inner bearing sleeve, and the outer bearing sleeve is sleeved outside the inner bearing sleeve and matched with the inner bearing sleeve through the bearing;
the adjusting structure comprises an inner adjusting sleeve, an outer adjusting sleeve, a sliding claw sleeve, a spring and a push rod sleeve which are sequentially sleeved from inside to outside, the inner adjusting sleeve is coaxially connected to the lower end of the sliding claw sleeve, the outer adjusting sleeve is fixed to the inner side of the connecting pipe and sleeved outside the inner adjusting sleeve, the outer adjusting sleeve is in threaded fit with the inner adjusting sleeve, the outer side wall of the sliding claw sleeve is provided with two circles of teeth distributed from top to bottom, namely a first tooth and a second tooth, the first tooth and the second tooth both comprise inclined tooth surfaces and vertical tooth surfaces, the tooth tip of the first tooth is downwards arranged and located above the inclined tooth surface of the second tooth, the tooth tip of the second tooth is upwards arranged and located below the inclined tooth surface of the first tooth, the inclined tooth surface of the first tooth and the inclined tooth surface of the second tooth are oppositely arranged, and the upper end of the spring abuts against a step surface of the inner side wall sleeve of the push rod, The lower end of the push rod sleeve abuts against a step surface of the outer side wall of the sliding claw sleeve, the upper end of the push rod sleeve directly or indirectly abuts against the outer bearing sleeve, the lower end of the push rod sleeve is fixedly connected with the inner adjusting sleeve, guide protrusions extending along the vertical direction are arranged at two ends, located in the diameter direction, of the outer side wall of the push rod sleeve, guide grooves extending along the vertical direction are arranged at two ends, located in the diameter direction, of the inner side wall of the connecting pipe, the guide protrusions are arranged in the guide grooves and are in vertical guide and sliding fit with the guide grooves, driving columns distributed along the circumferential direction are arranged on the inner side wall of the push rod sleeve, the driving columns are cylindrical, and each driving column extends into a vertical area between the first tooth and the second tooth;
the sucker rod sequentially penetrates through the limiting block, the inner bearing sleeve, the sliding claw sleeve and the inner adjusting sleeve along the vertical direction, the sucker rod is connected with a rotor of the all-metal conical screw pump, the limiting block is provided with a through hole which penetrates through the limiting block from top to bottom, and the through hole of the limiting block and gaps between the sucker rod and the inner bearing sleeve, between the sucker rod and the sliding claw sleeve and between the sucker rod and the inner adjusting sleeve are communicated to form an oil delivery channel.
Further, the inclined tooth surface of the first tooth is inclined to the upper right, and the inclined tooth surface of the second tooth is inclined to the upper left.
Further, the bearing comprises a first bearing and a second bearing, the first bearing is used for ensuring the concentricity of the inner bearing sleeve and the outer bearing sleeve, and the second bearing is used for bearing the weight of the sucker rod and the inner bearing sleeve; and third bearings are respectively arranged between the upper end and the lower end of the spring and the corresponding step surfaces.
Preferably, the upper side and the lower side of the second bearing are respectively provided with a first bearing, the first bearing is a self-aligning bearing, and the second bearing is a plane bearing.
Further, gaps between the inner bearing sleeve and the outer bearing sleeve above the first bearing on the upper side and below the first bearing on the lower side are respectively sealed by packing.
Furthermore, the upper end of the sucker rod is connected with a high-stability type driving and lifting device, and the high-stability type driving and lifting device comprises a direct-drive synchronous motor, a transmission sleeve, an internal thread sleeve, an external thread sleeve, an end cover, a limiting piece and a lifting driving unit;
the direct-drive synchronous motor is arranged at the upper part of the bracket, a sleeve part of a rotor of the direct-drive synchronous motor is in transmission fit with the transmission sleeve, the upper end of the transmission sleeve can slide up and down along the sleeve part, and the lower end of the transmission sleeve is supported on the internal thread sleeve;
the internal thread sleeve is matched with the transmission sleeve through a fourth bearing and a fifth bearing, the fourth bearing is used for bearing the weight of the transmission sleeve and the weight of the sucker rod, and the fifth bearing is used for ensuring the concentricity of the transmission sleeve and the internal thread sleeve;
the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, and the external thread sleeve is in threaded fit with the internal thread sleeve;
the end cover is fixed at the upper end of the transmission sleeve, and the limiting piece is fixed with the sucker rod and is in key connection with the end cover;
the sucker rod sequentially penetrates through the end cover and the external thread sleeve, the sucker rod is matched with the external thread sleeve through a fifth bearing, and a gap is formed between an inner ring of the fifth bearing and the sucker rod;
the lifting driving unit is arranged at the lower part of the bracket and is in transmission fit with the external thread sleeve and used for driving the external thread sleeve to rotate.
Furthermore, the drive lifting unit comprises a servo motor and a speed reducer, and the servo motor, the speed reducer and the external thread sleeve are in transmission fit in sequence.
Furthermore, the cross section of the inner cavity of the sleeve part of the rotor of the direct-drive synchronous motor and the cross section of the outer side wall of the transmission sleeve are both polygonal.
Furthermore, the locating part includes the stopper of two symmetries, and the stopper of two symmetries passes through bolt, nut and can dismantle the connection, the stopper is equipped with the arc recess that is used for pressing from both sides tight all-metal tapered screw pump's polished rod, the arc recess inboard is equipped with the tooth.
The self-debugging position controller has the following beneficial effects:
(1) after the sucker rod is lifted, the push rod sleeve moves upwards under the action of the spring, the driving column upwards extrudes the sliding claw sleeve along the inclined tooth surface of the first tooth, the sliding claw sleeve rotates clockwise, the sucker rod is lowered, the push rod sleeve overcomes the acting force of the spring and moves downwards under the action of the sucker rod, the driving column downwards extrudes the sliding claw sleeve along the inclined tooth surface of the second tooth, and the sliding claw sleeve rotates clockwise again, namely the self-debugging positioner of the invention does not need to be driven by a main motor connected with the sucker rod, the sliding claw sleeve and the inner adjusting sleeve are driven to rotate by a set angle through each lifting and lowering action of the sucker rod, and the downward moving distance of the inner adjusting sleeve is also certain under the condition of a set rotating angle of the inner adjusting sleeve, so that the gap between a rotor and a stator can be accurately adjusted;
(2) the self-adjusting position controller of the invention does not relate to the driving adjustment of a main motor, namely, torque is not required to be transmitted through a sucker rod, so that the response speed can be improved, and the subsequent oil pumping efficiency is not influenced, in particular, after a sucker rod is lifted by the lifting device disclosed in the patent CN202011067778.6, an inner transmission sleeve and an outer transmission sleeve are matched, the main motor, namely, a direct-drive synchronous motor, rotates to drive the sucker rod to rotate, the sucker rod drives the transmission sleeve to rotate and rise so as to adjust the heights of a locking washer, a limiting block and the sucker rod, the main motor is in high-speed operation under the normal working state of an all-metal conical screw pump, the adjustment accuracy cannot be ensured under the high-speed operation state, only the main motor is stopped and then started, and the accurate adjustment is carried out at a slow speed, and after the lifting device matched with the structure of the invention, in addition, after the all-metal conical screw pump is stopped, if an oil well with the depth of 1500m, the oil outlet needs 6-8 hours again, subsequent oil recovery efficiency is affected; the rotating angle of the sliding claw sleeve is a fixed value every time the sucker rod is lifted, the fixed value is arranged on the graduation of the first tooth and the second tooth and is irrelevant to the main motor, the main motor is not required to be stopped, the response speed of the position controller can be increased, and the subsequent oil pumping efficiency is not influenced;
(3) the inclined tooth surface of the first tooth and the inclined tooth surface of the second tooth are arranged in opposite directions, so that the rotating directions of the sliding claw sleeves are consistent in the lifting and descending processes of the sucker rod;
(4) the tooth tops of the first teeth are arranged downwards and are positioned above the inclined tooth surface of the second teeth, the tooth tops of the second teeth are arranged upwards and are positioned below the inclined tooth surface of the first teeth, namely the tooth tops of the first teeth and the second teeth are arranged in a staggered mode, so that the corresponding tooth tops in the moving direction can be staggered with the driving column in the processes of moving upwards and downwards along with the push rod sleeve, and the reliability of the self-debugging position controller is ensured;
(5) the sucker rod is supported on the inner bearing sleeve through the limiting block, because the inner bearing sleeve is matched with the outer bearing sleeve through the bearing, the outer bearing sleeve is supported on the inner adjusting sleeve, the inner adjusting sleeve is fixed with the connecting pipe in a threaded manner, the connecting pipe is fixedly connected with the oil sleeve, namely, in the working process of the all-metal screw pump, the sucker rod can form stable support through the matching of the limiting block and the rotary limiting structure, the influence of the rotary motion of the sucker rod/rotor on parts such as the inner adjusting sleeve is eliminated through the bearing, the normal operation of the rotor is not influenced by the structure under the non-adjusting state, and the influence on the operation stability of a pump body caused by the fact that the sucker rod is stressed to stretch downwards and the sucker rod is jumped is avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of a self-adaptive positioner according to the present invention.
Fig. 2 is a partially enlarged schematic structural view of a portion a in fig. 1.
Fig. 3 is a schematic view of a part of the enlarged structure at B in fig. 1.
Fig. 4 is a schematic structural view of the sliding jaw sleeve of the present invention.
Fig. 5 is a first perspective view of the push rod cover and the driving post of the present invention.
Fig. 6 is a second perspective view of the push rod cover and the driving post of the present invention.
Fig. 7 is a schematic sectional view showing the structure of the adapter tube according to the present invention.
Fig. 8 is a schematic cross-sectional view of the high stability type driving lifting device of the present invention.
Fig. 9 is a partially enlarged schematic structural view of a portion C in fig. 8.
Detailed Description
As shown in fig. 1 to 7, the self-adjusting position controller suitable for the all-metal conical screw pump comprises a connecting pipe 2, a rotation limiting structure and an adjusting structure, wherein the rotation limiting structure and the adjusting structure are arranged in the connecting pipe 2 from top to bottom;
the connecting pipe 2 is fixedly connected with the oil pumping pipe, or the connecting pipe 2 is the oil pumping pipe;
the rotary limiting structure comprises a limiting block 3, an inner bearing sleeve 6, an outer bearing sleeve 7 and a bearing, wherein the limiting block 3 is connected with the sucker rod 1 and supported on a supporting block 4 at the top of the inner bearing sleeve 6, a sealing space ring 5 is arranged between the supporting block 4 and the inner bearing sleeve 6, a labyrinth sealing structure is formed between the sealing space ring 5 and the outer bearing sleeve 7, the outer bearing sleeve 7 is sleeved outside the inner bearing sleeve 6 and matched with the inner bearing sleeve 6 through the bearing, the bearing comprises a first bearing 8 and a second bearing 9, the first bearing 8 is used for ensuring the concentricity of the inner bearing sleeve 6 and the outer bearing sleeve 7, the second bearing 9 is used for bearing the weight of the sucker rod 1 and the inner bearing sleeve 6, the upper side and the lower side of the second bearing 9 are respectively provided with a first bearing 8, the first bearing 8 is a self-aligning bearing, the second bearing 9 is a plane bearing, gaps above the first bearing 8 at the upper side and below the first bearing 8 at the lower side of the inner bearing sleeve 6 and the outer bearing sleeve 7 are respectively sealed through a filler 10, the locking nut 11 is mounted at the lower end of the outer bearing sleeve 7, is in threaded fit with the outer bearing sleeve 7 and is used for compressing the packing 10;
the adjusting structure comprises a gasket 12, an inner adjusting sleeve 13, an outer adjusting sleeve 14, a sliding claw sleeve 18, a spring 16 and a push rod sleeve 15, wherein the sliding claw sleeve 18, the spring 16 and the push rod sleeve 15 are sequentially sleeved from inside to outside, in the embodiment, the push rod sleeve 15 indirectly abuts against the outer bearing sleeve 7 through the gasket 12, namely, the upper end of the gasket 12 abuts against the outer bearing sleeve 7, the lower end of the gasket 12 abuts against the push rod sleeve 15, the push rod sleeve 15 and the outer bearing sleeve 7 are prevented from directly abutting against each other through the gasket 12, abrasion of two parts can be reduced, the inner adjusting sleeve 13 is in threaded fit with the outer adjusting sleeve 14 fixed on the inner side of the adapter 2, the inner adjusting sleeve 13 is coaxially connected to the lower end of the sliding claw sleeve 18, the outer side wall of the sliding claw sleeve 18 is provided with two rings of teeth distributed from top to bottom, namely a first tooth 181 and a second tooth 183, the first tooth and the second tooth are staggered and are arranged with the tooth sockets opposite to each other, the first tooth socket 181 comprises a first inclined tooth socket 1811 and a first vertical tooth socket 1812, a first tooth socket 182 is formed between adjacent first tooth socket, the second tooth 183 includes a second inclined tooth surface 1831 and a second vertical tooth surface 1832, a second tooth groove 184 is formed between adjacent second teeth 183, the tooth groove openings of the two are oppositely arranged, that is, the first tooth groove 182 is arranged downward, the second tooth groove 184 is arranged upward, the tooth tip of the first tooth 181 is arranged downward and above the second inclined tooth surface 1831, the tooth tip of the second tooth 183 is arranged upward and below the first inclined tooth surface 1811, the first inclined tooth surface 1811 is arranged obliquely upward to the right, the second inclined tooth surface 1831 is arranged obliquely upward to the left, that is, the first inclined tooth surface 1811 and the second inclined tooth surface 1831 are arranged in opposite directions of inclination, the upper end of the spring 16 abuts against the step surface of the inner side wall of the push rod housing 15, the lower end thereof abuts against the step surface of the outer side wall of the pawl housing 18, preferably, sixth bearings 17 are respectively provided between the upper and lower ends of the spring 16 and the corresponding step surfaces, the sixth bearings 17 are plane bearings, the upper end of the push rod sleeve 15 props against the outer bearing sleeve 7, the lower end of the push rod sleeve 15 is fixedly connected with the inner adjusting sleeve 13, the push rod sleeve 15 is vertically guided and slidably matched with the connecting pipe 2, the inner side wall of the push rod sleeve 15 is provided with driving columns 19 distributed along the circumferential direction, each driving column 19 respectively extends into a vertical area between the first tooth 181 and the second tooth 183, and the driving columns 19 are preferably cylindrical;
the sucker rod 1 vertically penetrates through the limiting block 3, the supporting block 4, the inner bearing sleeve 6, the gasket 12, the sliding claw sleeve 18 and the inner adjusting sleeve 13 in sequence, the sucker rod 1 is connected with a rotor of the all-metal conical screw pump, the limiting block is provided with a through hole which penetrates through the limiting block from top to bottom, and the through hole of the limiting block and gaps between the sucker rod 1 and the limiting block 3, the supporting block 4, the inner bearing sleeve 6, the gasket 12, the sliding claw sleeve 18 and the inner adjusting sleeve 13 are communicated to form an oil delivery channel.
The both ends that the lateral wall of push rod cover 15 is located diametric are equipped with along vertical extension direction protruding 151, and the both ends that the inside wall of takeover 2 is located diametric are equipped with along vertical extension direction recess 21, and protruding 151 sets up in direction recess 21 and with direction recess 21 sliding fit to realize push rod cover 15 and takeover 2 along vertical direction, sliding fit.
As shown in fig. 8 and 9, the upper end of the sucker rod 1 is connected with a high-stability type driving and lifting device, and the high-stability type driving and lifting device comprises a direct-drive synchronous motor 101, a transmission sleeve 105, an internal thread sleeve 108, an external thread sleeve 106, an end cover 103, a limiting member 102 and a lifting driving unit;
the direct-drive synchronous motor 101 is mounted on an upper mounting plate 104a of the bracket 104 (in the figure, 104b is a support column of the bracket, 104c is a lower mounting plate, and two ends of the support column are fixedly connected with the upper mounting plate and the lower mounting plate), a sleeve part of a rotor of the direct-drive synchronous motor 101 is in transmission fit with the transmission sleeve 105, the upper end of the transmission sleeve 105 can slide up and down along the sleeve part, and the lower end of the transmission sleeve 105 is supported on the internal thread sleeve 108;
the internal thread sleeve 108 is matched with the transmission sleeve 105 through a third bearing 109 and a fourth bearing 110, the third bearing 109 is used for bearing the weight of the transmission sleeve 105 and the sucker rod 1, and the fourth bearing 110 is used for ensuring the concentricity of the transmission sleeve 105 and the internal thread sleeve 108;
the external thread sleeve 106 penetrates through the internal thread sleeve 108 and then extends into the transmission sleeve 105, and the external thread sleeve 106 is in threaded fit with the internal thread sleeve 108;
the end cover 103 is fixed at the upper end of the transmission sleeve 105, and the limiting piece 102 is fixed with the sucker rod 1 and is in key connection with the end cover 103;
the sucker rod 1 sequentially penetrates through the end cover 103 and the external thread sleeve 106, the sucker rod 1 is matched with the external thread sleeve 106 through a fifth bearing, the fifth bearing is a self-aligning bearing, a gap is formed between an inner ring of the fifth bearing and the sucker rod, and the concentricity between the sucker rod 1 and the external thread sleeve 106 is maintained through the fifth bearing;
the lifting driving unit is installed at the lower part of the bracket 104, and the lifting driving unit is in transmission fit with the external thread sleeve 106 and is used for driving the external thread sleeve 106 to rotate. The drive lifting unit comprises a servo motor and a speed reducer which are in transmission fit, a worm gear 107 at the output end of the speed reducer is rotatably supported on a lower mounting plate 104c of the support through a seventh bearing, the seventh bearing is a plane bearing, the sucker rod 1 coaxially penetrates through the worm gear 107, and the lower end of an external thread sleeve 106 is fixedly supported on the worm gear 107 and is in transmission fit with the worm gear
The drive lifting unit drives the external thread sleeve 106 to rotate through the worm gear 107, and the external thread sleeve 106 drives the internal thread sleeve 109, the transmission sleeve 105 and the sucker rod 1 to lift. The external thread sleeve 106 penetrates through the internal thread sleeve and then extends into the transmission sleeve 105, so that the thread length of the external thread sleeve 106 is not limited by the installation height of the direct-drive synchronous motor 101, and the lifting adjusting range of the lifting device can be effectively expanded. The third bearing, the fourth bearing, the internal thread sleeve and other parts are arranged at the lower end of the transmission sleeve 105, namely, below the direct-drive synchronous motor 101, so that the center of gravity can be reduced, and the stability of the sucker rod 1 during high-speed operation is further improved.
The limiting part 102 comprises two symmetrical limiting blocks, the two symmetrical limiting blocks are detachably connected through bolts and nuts, the limiting blocks are provided with arc-shaped grooves used for clamping polished rods of all-metal conical screw pumps, and teeth are arranged on the inner sides of the arc-shaped grooves. The structure of the stopper 2 is not shown in the drawings, and refer to patent CN 201921471526.2.
Claims (7)
1. Self-debugging position controller suitable for all-metal conical screw pump, its characterized in that:
comprises a connecting pipe, a rotary limiting structure and an adjusting structure which are arranged in the connecting pipe from top to bottom,
the rotary limiting structure comprises a limiting block, an inner bearing sleeve, an outer bearing sleeve and a bearing, the limiting block is connected with the sucker rod and supported at the top of the inner bearing sleeve, and the outer bearing sleeve is sleeved outside the inner bearing sleeve and matched with the inner bearing sleeve through the bearing;
the adjusting structure comprises an inner adjusting sleeve, an outer adjusting sleeve, a sliding claw sleeve, a spring and a push rod sleeve which are sequentially sleeved from inside to outside, the inner adjusting sleeve is coaxially connected to the lower end of the sliding claw sleeve, the outer adjusting sleeve is fixed to the inner side of the connecting pipe and sleeved outside the inner adjusting sleeve, the outer adjusting sleeve is in threaded fit with the inner adjusting sleeve, the outer side wall of the sliding claw sleeve is provided with two circles of teeth distributed from top to bottom, namely a first tooth and a second tooth, the first tooth and the second tooth both comprise inclined tooth surfaces and vertical tooth surfaces, the tooth tip of the first tooth is downwards arranged and located above the inclined tooth surface of the second tooth, the tooth tip of the second tooth is upwards arranged and located below the inclined tooth surface of the first tooth, the inclined tooth surface of the first tooth and the inclined tooth surface of the second tooth are oppositely arranged, and the upper end of the spring abuts against a step surface of the inner side wall sleeve of the push rod, The lower end of the push rod sleeve abuts against a step surface of the outer side wall of the sliding claw sleeve, the upper end of the push rod sleeve directly or indirectly abuts against the outer bearing sleeve, the lower end of the push rod sleeve is fixedly connected with the inner adjusting sleeve, guide protrusions extending along the vertical direction are arranged at two ends, located in the diameter direction, of the outer side wall of the push rod sleeve, guide grooves extending along the vertical direction are arranged at two ends, located in the diameter direction, of the inner side wall of the connecting pipe, the guide protrusions are arranged in the guide grooves and are in vertical guide and sliding fit with the guide grooves, driving columns distributed along the circumferential direction are arranged on the inner side wall of the push rod sleeve, the driving columns are cylindrical, and each driving column extends into a vertical area between the first tooth and the second tooth;
the sucker rod sequentially penetrates through the limiting block, the inner bearing sleeve, the sliding claw sleeve and the inner adjusting sleeve along the vertical direction, the sucker rod is connected with a rotor of the all-metal conical screw pump, the limiting block is provided with a through hole which penetrates through the limiting block from top to bottom, and the through hole of the limiting block and gaps between the sucker rod and the inner bearing sleeve, between the sucker rod and the sliding claw sleeve and between the sucker rod and the inner adjusting sleeve are communicated to form an oil delivery channel.
2. The self-commissioning position controller for an all-metal conical screw pump according to claim 1, wherein: the inclined tooth surface of the first tooth is inclined to the upper right, and the inclined tooth surface of the second tooth is inclined to the upper left.
3. The self-commissioning position controller for an all-metal conical screw pump according to claim 1, wherein: the bearing comprises a first bearing and a second bearing, the first bearing is used for ensuring the concentricity of the inner bearing sleeve and the outer bearing sleeve, and the second bearing is used for bearing the weight of the sucker rod and the inner bearing sleeve; and third bearings are respectively arranged between the upper end and the lower end of the spring and the corresponding step surfaces.
4. The self-debugging position controller suitable for the all-metal conical screw pump according to claim 3, wherein: the upper side and the lower side of the second bearing are respectively provided with a first bearing, the first bearing is a self-aligning bearing, and the second bearing is a plane bearing.
5. The self-debugging position controller suitable for the all-metal conical screw pump according to claim 4, wherein: and gaps between the inner bearing sleeve and the outer bearing sleeve above the first bearing on the upper side and below the first bearing on the lower side are respectively sealed by packing.
6. The self-commissioning position controller for an all-metal conical screw pump according to claim 1, wherein: the upper end of the sucker rod is connected with a high-stability type driving and lifting device, and the high-stability type driving and lifting device comprises a direct-drive synchronous motor, a transmission sleeve, an internal thread sleeve, an external thread sleeve, an end cover, a limiting piece and a lifting driving unit;
the direct-drive synchronous motor is arranged at the upper part of the bracket, a sleeve part of a rotor of the direct-drive synchronous motor is in transmission fit with the transmission sleeve, the upper end of the transmission sleeve can slide up and down along the sleeve part, and the lower end of the transmission sleeve is supported on the internal thread sleeve;
the internal thread sleeve is matched with the transmission sleeve through a fourth bearing and a fifth bearing, the fourth bearing is used for bearing the weight of the transmission sleeve and the weight of the sucker rod, and the fifth bearing is used for ensuring the concentricity of the transmission sleeve and the internal thread sleeve;
the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, and the external thread sleeve is in threaded fit with the internal thread sleeve;
the end cover is fixed at the upper end of the transmission sleeve, and the limiting piece is fixed with the sucker rod and is in key connection with the end cover;
the sucker rod sequentially penetrates through the end cover and the external thread sleeve, the sucker rod is matched with the external thread sleeve through a fifth bearing, and a gap is formed between an inner ring of the fifth bearing and the sucker rod;
the lifting driving unit is arranged at the lower part of the bracket and is in transmission fit with the external thread sleeve and used for driving the external thread sleeve to rotate.
7. The self-debugging position controller suitable for the all-metal conical screw pump according to claim 6, wherein: the cross section of the inner cavity of the sleeve part of the rotor of the direct-drive synchronous motor and the cross section of the outer side wall of the transmission sleeve are both polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210450724.0A CN114893395A (en) | 2022-04-27 | 2022-04-27 | Self-adjusting position controller suitable for all-metal conical screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210450724.0A CN114893395A (en) | 2022-04-27 | 2022-04-27 | Self-adjusting position controller suitable for all-metal conical screw pump |
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| CN114893395A true CN114893395A (en) | 2022-08-12 |
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| CN202210450724.0A Withdrawn CN114893395A (en) | 2022-04-27 | 2022-04-27 | Self-adjusting position controller suitable for all-metal conical screw pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869295A (en) * | 2024-01-22 | 2024-04-12 | 无锡恒信北石科技有限公司 | A reverse adjustment mechanism and a position control device and method including the mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120237380A1 (en) * | 2011-03-15 | 2012-09-20 | Weatherford/Lamb, Inc. | Downhole Backspin Retarder for Progressive Cavity Pump |
| CN207673502U (en) * | 2018-01-06 | 2018-07-31 | 西南石油大学 | A kind of rod pumping pump and ground driving screw pump combined type oil pumping system |
| CN111734624A (en) * | 2020-06-03 | 2020-10-02 | 无锡恒信北石科技有限公司 | Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system |
| CN112096608A (en) * | 2020-10-07 | 2020-12-18 | 无锡恒信北石科技有限公司 | Upper-mounted limiting device and intelligent system of all-metal conical screw pump |
| CN113027748A (en) * | 2021-04-23 | 2021-06-25 | 无锡盛钰和机械有限公司 | Real-time compensation limiter for abrasion of conical screw pump |
| CN217327665U (en) * | 2022-04-27 | 2022-08-30 | 无锡恒信北石科技有限公司 | Self-debugging position controller suitable for all-metal conical screw pump |
-
2022
- 2022-04-27 CN CN202210450724.0A patent/CN114893395A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120237380A1 (en) * | 2011-03-15 | 2012-09-20 | Weatherford/Lamb, Inc. | Downhole Backspin Retarder for Progressive Cavity Pump |
| CN207673502U (en) * | 2018-01-06 | 2018-07-31 | 西南石油大学 | A kind of rod pumping pump and ground driving screw pump combined type oil pumping system |
| CN111734624A (en) * | 2020-06-03 | 2020-10-02 | 无锡恒信北石科技有限公司 | Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system |
| CN112096608A (en) * | 2020-10-07 | 2020-12-18 | 无锡恒信北石科技有限公司 | Upper-mounted limiting device and intelligent system of all-metal conical screw pump |
| CN113027748A (en) * | 2021-04-23 | 2021-06-25 | 无锡盛钰和机械有限公司 | Real-time compensation limiter for abrasion of conical screw pump |
| CN217327665U (en) * | 2022-04-27 | 2022-08-30 | 无锡恒信北石科技有限公司 | Self-debugging position controller suitable for all-metal conical screw pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869295A (en) * | 2024-01-22 | 2024-04-12 | 无锡恒信北石科技有限公司 | A reverse adjustment mechanism and a position control device and method including the mechanism |
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Application publication date: 20220812 |