CN111734624A - Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system - Google Patents
Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system Download PDFInfo
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- CN111734624A CN111734624A CN202010494630.4A CN202010494630A CN111734624A CN 111734624 A CN111734624 A CN 111734624A CN 202010494630 A CN202010494630 A CN 202010494630A CN 111734624 A CN111734624 A CN 111734624A
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- rotor
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- screw pump
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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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- 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
- F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- 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
- F04C2240/00—Components
- F04C2240/10—Stators
-
- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides an anti-jamming limiting device of an all-metal conical screw pump, an intelligent system and an anti-wear control method of the intelligent system, which can effectively avoid jamming of a rotor and a stator after the rotor falls down. The utility model provides an all-metal tapered screw pump's dead stop device of anti-sticking, all-metal screw pump include stator and rotor, its characterized in that: the stator lower extreme is connected with the sleeve, sleeve threaded connection has support piece, the linkage piece that upwards extends is installed at support piece's top, the bottom of rotor is equipped with the breach, perhaps, support piece's top is equipped with the breach, downwardly extending's linkage piece is installed to the bottom of rotor, when the rotor descends to the linkage piece and stretches into in the breach, at rotor pivoted in-process, it is rotatory with sleeve complex screw thread along it to drive support piece through linkage piece and breach cooperation, move down, can maintain the interval between support piece and the rotor in predetermineeing the interval, prevent rotor at normal decline in-process and support piece butt, ensure rotor normal operating.
Description
Technical Field
The invention relates to the technical field of oil exploitation equipment, in particular to auxiliary equipment of an all-metal conical screw pump, and particularly relates to an anti-blocking limiting device of the all-metal conical screw pump, an intelligent system and an anti-abrasion control method of the intelligent system.
Background
The all-metal screw pump is used for locking the clamp of the sucker rod to lose efficacy, connecting the sucker rod and the nut of the rotor to slide or the sucker rod to break, and the rotor falls and is clamped with the stator, so that the pump body is scrapped once the clamping phenomenon occurs.
Disclosure of Invention
Aiming at the problems, the invention provides an anti-jamming limiting device of an all-metal conical screw pump, an intelligent system and an anti-wear control method of the intelligent system, which can effectively avoid jamming of a rotor and a stator after the rotor falls down.
Its technical scheme is like, the dead stop device of anti-sticking of all-metal toper screw pump, all-metal screw pump include stator and rotor, its characterized in that: the lower end of the stator is connected with a sleeve, the inner thread of the sleeve is connected with a supporting piece,
the top of the supporting piece is provided with an upward extending linkage piece, the bottom of the rotor is provided with a notch, or the top of the supporting piece is provided with a notch, the bottom of the rotor is provided with a downward extending linkage piece,
when the rotor descends to the position that the linkage piece extends into the notch, the linkage piece is matched with the notch to drive the support piece to rotate and move downwards along the thread matched with the sleeve in the rotating process of the rotor.
Furthermore, the limiting device also comprises an oil supply channel for communicating an oil well at the lower part of the supporting piece and the cavity inside the stator.
Furthermore, the oil supply channel is arranged inside the supporting piece and penetrates through the supporting piece from top to bottom; or the oil supply channel is arranged outside the supporting piece, the lower end of the oil supply channel is communicated with an oil well at the lower part of the supporting piece, and the upper end of the oil supply channel penetrates through the side wall of the stator and then extends into the cavity inside the stator.
Further, the link is eccentrically disposed with respect to the support piece.
Further, the linkage member is rotatably engaged with the top of the support member or the bottom of the rotor through a bearing.
Furthermore, the linkage piece is elastically connected with the top of the supporting piece or the bottom of the rotor through a spring, and under the action of the spring, the linkage piece can elastically stretch and retract along the vertical direction.
Further, the sleeve and the stator are integrally formed or are connected in a split mode.
Further, the lower end of the supporting piece is provided with a spring steel plate, and the spring steel plate is elastically abutted to the inner wall of the sleeve or the internal thread.
According to the limiting device, the supporting piece fixed with the stator is arranged below the rotor, when the rotor falls behind due to the fact that calipers used for locking the sucker rod fail, nut screws for connecting the sucker rod and the rotor slide or the sucker rod is broken and the like, the rotor is supported on the supporting piece, the rotor and the stator are prevented from being clamped, the pump body is prevented from being scrapped, and in the case that the calipers of the locking sucker rod fail, the rotor and the stator are not clamped, the pump body does not need to be integrally disassembled, operation is simple, and cost is low; in addition, when the normal during operation of the rotor of all-metal tapered screw pump, can take place wearing and tearing, the pump efficiency reduces, need move the rotor down, the clearance of adjustment rotor and stator, maintain the pump efficiency, when the rotor descends to the linkage stretches into in the breach, at rotor pivoted in-process, it is rotatory, move down along its and sleeve complex screw thread to drive support piece through linkage and breach cooperation, can make support piece and rotor be the interval setting all the time, prevent that the rotor is for maintaining the pump efficiency, rotor and support piece butt in normal decline in-process, ensure the rotor normal operating.
The invention also provides an anti-locking intelligent system of the all-metal conical screw pump, which is characterized in that: the intelligent system comprises a lifting device and the limiting device, wherein the lifting device is used for lifting or lowering the sucker rod.
Further, the rotor of the all-metal conical screw pump is connected with a rotation driving device, the rotation driving device comprises a direct-drive synchronous motor, a female transmission sleeve and a male transmission sleeve, the female transmission sleeve is coaxially fixed with the sleeve part of the rotor of the direct-drive synchronous motor, the male transmission sleeve is inserted in the female transmission sleeve, the male transmission sleeve is in transmission fit with the female transmission sleeve and can slide up and down relative to the female transmission sleeve, the lifting device comprises a rotor lifting driving device, a clamping device and a rotating connecting assembly, the rotor lifting driving device comprises a lifting driving unit and a lifting sleeve, the lifting sleeve and the male transmission sleeve are sleeved outside the sucker rod of the all-metal conical screw pump from inside to outside, the lifting sleeve synchronously drives the rotating connecting component to lift when driven by the lifting driving unit to move upwards, the lifting sleeve synchronously drives the rotating connecting assembly to descend when moving downwards under the driving of the lifting driving unit;
the clamping device comprises a first clamping jaw, and the first clamping jaw can clamp and fix a sucker rod of the all-metal conical screw pump;
the rotary connecting assembly comprises a connecting piece and a first bearing, the upper end of the male transmission sleeve upwards extends out to be fixedly connected with the rear of the direct-drive synchronous motor, the upper end of the lifting sleeve penetrates through the male transmission sleeve and then passes through the first bearing and the connecting piece in a rotary fit mode, the connecting piece is provided with a through hole, a sucker rod of the all-metal conical screw pump penetrates through the through hole, the rear of a center hole of the first bearing is detachably connected with the first clamping jaw, and the first clamping jaw is supported on the top of the connecting piece and is in transmission fit with the connecting piece.
Furthermore, the lifting driving unit is a hydraulic cylinder or a servo electric cylinder, an output shaft of the hydraulic cylinder and the servo electric cylinder is of a sleeve structure with openings at the upper end and the lower end, the output shaft is sleeved outside the sucker rod, and the lower end of the transmission sleeve is supported at the upper end of the output shaft.
According to the intelligent system, after the stator is abraded, when the rotor of the all-metal conical screw pump normally works, abrasion occurs, the pump efficiency is reduced, at the moment, the rotor moves downwards through the lifting driving unit, if the actual pump efficiency reaches the working pump efficiency, the upper end face of the linkage part is abutted to the lower end face of the rotor, friction occurs between the upper end face and the lower end face of the rotor, the normal operation of the rotor is affected, the service life of the linkage part is affected, the lifting driving unit can move the rotor downwards further, the linkage part extends into the notch, in the rotating process of the rotor, the side wall of the notch is abutted to the linkage part, the supporting part is driven to rotate and move downwards along the thread matched with the sleeve, then the rotor is lifted to restore the working pump efficiency, the linkage part is separated from the rotor all the time, the rotor is prevented from being abutted to the linkage part, and the.
An anti-abrasion control method of an anti-seize intelligent system of an all-metal conical screw pump is characterized in that:
before the anti-abrasion control method is implemented, the actual pump efficiency of the all-metal tapered screw pump can be within a preset working pump efficiency interval under the regulation of a lifting driving unit;
the anti-abrasion control method comprises the following steps which are carried out in sequence,
s1, the rotor is driven to descend by the lifting driving unit, and when the rotating speed of the rotor is not changed, the actual pump efficiency exceeds the upper limit of the preset working pump efficiency after the rotor descends;
and S2, lifting, wherein the lifting driving unit drives the rotor to lift, and when the rotating speed of the rotor is not changed, the actual pump effect is within a preset working pump effect interval after the rotor is lifted.
When the rotor height is adjusted by the lifting unit, the actual pump effect can be located in a preset working pump effect interval under the adjustment of the lifting driving unit, if the upper end face of the linkage part is abutted to the lower end face of the rotor, and meanwhile, when the linkage part is not enough to extend into the notch under the action of the spring, the linkage part and the rotor can rub to influence the normal operation of the rotor and the service life of the linkage part. If the upper end face of the linkage part is abutted to the lower end face of the rotor, through the implementation of the anti-abrasion control method, after the rotor moves downwards, the linkage part can extend into the notch under the action of the spring, the rotor rotates to drive the linkage part and the support part to rotate and move downwards, and after the rotor moves upwards, the linkage part can be separated from the rotor.
Drawings
Fig. 1 is a schematic structural view of the limiting device of the present invention.
Fig. 2 is a partially enlarged schematic view of the assembled parts of the stator, the connecting sleeve, the sleeve and the supporting member in fig. 1.
Fig. 3 is a schematic structural diagram of the lifting device of the present invention.
Detailed Description
As shown in fig. 1 to 3, an anti-seize limiting device of an all-metal conical screw pump comprises a stator 2 and a rotor 1, wherein the lower end of the stator 2 is welded with a connecting sleeve 4, the connecting sleeve is connected with a sleeve 5 in an internal thread manner, the sleeve 5 is connected with a supporting piece 6 in an internal thread manner, and the sleeve 5, the connecting sleeve and the stator 2 can be integrally formed or connected in a split manner;
the supporting piece 6 is provided with an oil supply channel 7 which penetrates from top to bottom, the oil supply channel 7 is communicated with an oil well at the lower part of the supporting piece 6 and an internal cavity of the stator 2, the top of the supporting piece 6 is provided with an upwards extending linkage piece 8, the bottom of the rotor 1 is provided with a notch 9, the linkage piece 8 is eccentrically arranged relative to the supporting piece 6, so that the rotor can better drive the linkage piece to rotate,
when the rotor 1 descends to the state that the linkage piece 8 extends into the notch 9, the linkage piece 8 is matched with the notch 9 to drive the support piece 6 to rotate and move downwards along the thread matched with the sleeve 5 in the rotating process of the rotor 1.
The linkage piece 8 is in running fit with the top of the support piece 6 through a bearing so as to prevent the linkage piece from being blocked; linkage 8 passes through the top of spring and support piece 6 or the bottom elastic connection of rotor 1, under the effect of spring, the in-process that the rotor moved down, when the rotor received the restriction of linkage 8 still will further move down, because linkage 8 can follow vertical elastic expansion, avoid the restriction of linkage 8 to the rotor, prevent that the rotor from crushing linkage 8, when the rotor is rotatory to the breach when relative with linkage 8, linkage 8 stretches into in the breach and offsets with the lateral wall of breach under the effect of spring.
The spring steel plate 18 is installed at the lower end of the supporting piece 6, the spring steel plate 18 is elastically abutted to the inner wall or the inner thread of the sleeve 5, the spring steel plate 18 can play a role in preventing looseness, and the supporting piece can be prevented from loosening and falling off due to vibration when the all-metal conical screw pump is in a working state.
The supporting piece is pre-installed at the bottom of the stator, and the supporting piece is adjusted to a precise position through the rotation of the rotor in the process of installing the rotor.
The utility model provides a change dead intelligent system of card for preventing all metal tapered screw pump, intelligent system includes hoisting device and above-mentioned stop device, and hoisting device is used for promoting or transfers the sucker rod. Specifically, a rotor 1 of the all-metal conical screw pump is connected with a rotation driving device, the rotation driving device comprises a direct-drive synchronous motor 10, a female transmission sleeve 11 and a male transmission sleeve 12, the female transmission sleeve 11 is coaxially fixed with a sleeve part of the rotor 1 of the direct-drive synchronous motor 10, the male transmission sleeve 12 is inserted in the female transmission sleeve 11, the male transmission sleeve 12 is in transmission fit with the female transmission sleeve 11 and can slide up and down relative to the female transmission sleeve 11, the lifting device comprises a rotor lifting driving device, a clamping device and a rotation connecting assembly 13, the rotor lifting driving device comprises a lifting driving unit 19 and a lifting sleeve 17, and the lifting sleeve 17 and the male transmission sleeve 12 are sleeved outside a sucker rod 3 of the all-metal conical screw pump from inside to outside;
the clamping device comprises a first clamping jaw 16a and a second clamping jaw 16b, the first clamping jaw 16a and the second clamping jaw 16b can clamp and fix the sucker rod 3 of the all-metal conical screw pump, the second clamping jaw is fixedly connected with a wellhead device or an oil pumping outer sleeve sleeved outside the sucker rod 3, and the second clamping jaw 16b can clamp and fix the sucker rod under the condition that the first clamping jaw 16a is loosened;
the rotary connecting assembly 13 comprises a first connecting piece 13a, a second connecting piece 13b, a first bearing 14 and a second bearing 15, the upper end of the male transmission sleeve 12 extends upwards to be fixedly connected with the second connecting piece 13b after directly driving the synchronous motor 10, the first connecting piece 13a is fixed on the second connecting piece 13b, the upper end of the lifting sleeve 17 penetrates through the male transmission sleeve 12, the top of the lifting sleeve 17 is in rotary fit with the first connecting piece 13a through the first bearing 14, the side of the lifting sleeve is in rotary fit with the second connecting piece 13b through the second bearing 15, the first connecting piece 13a and the second connecting piece 13b form through holes penetrating from top to bottom, the sucker rod 3 of the all-metal conical screw pump penetrates through the through holes, the central hole of the first bearing is detachably connected with the first clamping jaw, and the first clamping jaw is supported on the top of the connecting piece and.
The lifting driving unit 19 is a hydraulic cylinder, the output shaft of the hydraulic cylinder is a sleeve structure with openings at the upper end and the lower end, the output shaft is sleeved outside the sucker rod 3, and the lower end of the transmission sleeve is supported at the upper end of the output shaft. Compared with a motor matched with a gear box for transmission, the hydraulic cylinder has the advantages of small volume, low noise and high bearing capacity.
When the lifting sleeve 17 is driven by the hydraulic cylinder to lift upwards, the rotating connecting assembly 13, the first clamping jaw 16a connected with the rotating connecting assembly and the sucker rod are driven to lift synchronously, when the lifting sleeve 17 is driven by the hydraulic cylinder to move downwards, the rotating connecting assembly 13, the first clamping jaw 16a connected with the rotating connecting assembly and the sucker rod are driven to descend synchronously, and the lifting sleeve can be prevented from rotating along with the direct-drive synchronous motor when the direct-drive synchronous motor works due to the arrangement of the first bearing 14 and the second bearing 15.
An anti-abrasion control method of an anti-seize intelligent system of an all-metal tapered screw pump is implemented periodically in the operation process of the all-metal tapered screw pump, and before the implementation of the anti-abrasion control method, the actual pump efficiency of the all-metal tapered screw pump can be within a preset working pump efficiency interval under the regulation of a lifting drive unit;
the anti-abrasion control method comprises the following steps which are carried out in sequence,
s1, descending, wherein the lifting driving unit drives the rotor to descend, and when the rotor rotates at a constant speed, the actual pump efficiency exceeds the upper limit of the preset working pump efficiency after the rotor descends;
and S2, lifting, wherein the lifting driving unit drives the rotor to lift, and when the rotor speed is not changed, the actual pump effect is within a preset working pump effect interval after the rotor is lifted.
When the rotor height is adjusted by the lifting unit, the actual pump effect can be located in a preset working pump effect interval under the adjustment of the lifting driving unit, if the upper end face of the linkage part is abutted to the lower end face of the rotor, and meanwhile, when the linkage part is not enough to extend into the notch under the action of the spring, the linkage part and the rotor can rub to influence the normal operation of the rotor and the service life of the linkage part. If the upper end face of the linkage part is abutted to the lower end face of the rotor, through the implementation of the anti-abrasion control method, after the rotor moves downwards, the linkage part can extend into the notch under the action of the spring, the rotor rotates to drive the linkage part and the support part to rotate and move downwards, and after the rotor moves upwards, the linkage part can be separated from the rotor.
The period may be half a month; the descending height may be a fixed value, for example, 3mm, or the rotation speed may be adjusted while maintaining the pump efficiency, for example, when the actual pump efficiency is within the preset working pump efficiency interval, the rotor rotation speed is 120rpm/min, the rotor descends, the gap between the rotor and the stator decreases, and the pump efficiency is maintained by decreasing the rotor rotation speed, and when the rotor rotation speed is decreased to 80 rpm/min.
Claims (12)
1. The utility model provides an all-metal tapered screw pump's dead stop device of anti-sticking, all-metal screw pump include stator and rotor, its characterized in that: the lower end of the stator is connected with a sleeve, the inner thread of the sleeve is connected with a supporting piece,
the top of the supporting piece is provided with an upward extending linkage piece, the bottom of the rotor is provided with a notch, or the top of the supporting piece is provided with a notch, the bottom of the rotor is provided with a downward extending linkage piece,
when the rotor descends to the position that the linkage piece extends into the notch, the linkage piece is matched with the notch to drive the support piece to rotate and move downwards along the thread matched with the sleeve in the rotating process of the rotor.
2. The anti-seize stop device of an all-metal tapered screw pump according to claim 1, wherein: the limiting device further comprises an oil supply channel for communicating an oil well at the lower part of the supporting piece and the cavity inside the stator.
3. The anti-seize stop device of an all-metal tapered screw pump according to claim 2, wherein: the oil supply channel is arranged in the supporting piece and penetrates through the supporting piece from top to bottom; or the oil supply channel is arranged outside the supporting piece, the lower end of the oil supply channel is communicated with an oil well at the lower part of the supporting piece, and the upper end of the oil supply channel penetrates through the side wall of the stator and then extends into the cavity inside the stator.
4. The anti-seize stop device of an all-metal tapered screw pump according to claim 1, wherein: the linkage is eccentrically disposed with respect to the support piece.
5. The anti-seize stop device of an all-metal tapered screw pump according to claim 4, wherein: the linkage piece is in rotating fit with the top of the support piece or the bottom of the rotor through a bearing.
6. The anti-seize stop device of an all-metal tapered screw pump according to claim 4, wherein: the linkage piece is elastically connected with the top of the supporting piece or the bottom of the rotor through a spring, and under the action of the spring, the linkage piece can elastically stretch and retract along the vertical direction.
7. The anti-seize stop device of an all-metal tapered screw pump according to claim 1, wherein: the sleeve and the stator are integrally formed or are connected in a split mode.
8. The anti-seize stop device of an all-metal tapered screw pump according to claim 1, wherein: the lower end of the supporting piece is provided with a spring steel plate, and the spring steel plate is elastically abutted to the inner wall of the sleeve or the internal thread.
9. The utility model provides an intelligent anti-sticking of all-metal toper screw pump is died which characterized in that: the intelligent system comprises a lifting device and a limiting device according to any one of claims 1-8, wherein the lifting device is used for lifting or lowering the sucker rod.
10. The intelligent anti-seize system for an all-metal tapered screw pump according to claim 9, wherein: the rotor of the all-metal conical screw pump is connected with a rotation driving device, the rotation driving device comprises a direct-drive synchronous motor, a female transmission sleeve and a male transmission sleeve, the female transmission sleeve is coaxially fixed with the sleeve part of the rotor of the direct-drive synchronous motor, the male transmission sleeve is inserted in the female transmission sleeve, the male transmission sleeve is in transmission fit with the female transmission sleeve and can slide up and down relative to the female transmission sleeve, the lifting device comprises a rotor lifting driving device, a clamping device and a rotating connecting assembly, the rotor lifting driving device comprises a lifting driving unit and a lifting sleeve, the lifting sleeve and the male transmission sleeve are sleeved outside the sucker rod of the all-metal conical screw pump from inside to outside, the lifting sleeve synchronously drives the rotating connecting component to lift when driven by the lifting driving unit to move upwards, the lifting sleeve synchronously drives the rotating connecting assembly to descend when moving downwards under the driving of the lifting driving unit;
the clamping device comprises a first clamping jaw, and the first clamping jaw can clamp and fix a sucker rod of the all-metal conical screw pump;
the rotary connecting assembly comprises a connecting piece and a first bearing, the upper end of the male transmission sleeve upwards extends out to be fixedly connected with the rear of the direct-drive synchronous motor, the upper end of the lifting sleeve penetrates through the male transmission sleeve and then passes through the first bearing and the connecting piece in a rotary fit mode, the connecting piece is provided with a through hole, a sucker rod of the all-metal conical screw pump penetrates through the through hole, the rear of a center hole of the first bearing is detachably connected with the first clamping jaw, and the first clamping jaw is supported on the top of the connecting piece and is in transmission fit with the connecting piece.
11. The intelligent anti-seize system for an all-metal tapered screw pump according to claim 10, wherein: the lifting driving unit is a hydraulic cylinder or a servo electric cylinder, an output shaft of the hydraulic cylinder and the servo electric cylinder are of a sleeve structure with openings at the upper end and the lower end, the output shaft is sleeved outside the sucker rod, and the lower end of the transmission sleeve is supported at the upper end of the output shaft.
12. The anti-wear control method for the anti-seize intelligent system of the all-metal conical screw pump according to any one of claims 9 to 11, wherein:
before the anti-abrasion control method is implemented, the actual pump efficiency of the all-metal tapered screw pump can be within a preset working pump efficiency interval under the regulation of a lifting driving unit;
the anti-abrasion control method comprises the following steps which are carried out in sequence,
s1, the rotor is driven to descend by the lifting driving unit, and when the rotating speed of the rotor is not changed, the actual pump efficiency exceeds the upper limit of the preset working pump efficiency after the rotor descends;
and S2, lifting, wherein the lifting driving unit drives the rotor to lift, and when the rotating speed of the rotor is not changed, the actual pump effect is within a preset working pump effect interval after the rotor is lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494630.4A CN111734624A (en) | 2020-06-03 | 2020-06-03 | Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494630.4A CN111734624A (en) | 2020-06-03 | 2020-06-03 | Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system |
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| Publication Number | Publication Date |
|---|---|
| CN111734624A true CN111734624A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010494630.4A Pending CN111734624A (en) | 2020-06-03 | 2020-06-03 | Anti-locking limiting device of all-metal conical screw pump, intelligent system and anti-abrasion control method of intelligent system |
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| CN (1) | CN111734624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893395A (en) * | 2022-04-27 | 2022-08-12 | 无锡恒信北石科技有限公司 | Self-adjusting position controller suitable for all-metal conical screw pump |
-
2020
- 2020-06-03 CN CN202010494630.4A patent/CN111734624A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893395A (en) * | 2022-04-27 | 2022-08-12 | 无锡恒信北石科技有限公司 | Self-adjusting position controller suitable for all-metal conical screw pump |
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