CN201027648Y - Straight-rotary screw pump - Google Patents
Straight-rotary screw pump Download PDFInfo
- Publication number
- CN201027648Y CN201027648Y CNU2007200345430U CN200720034543U CN201027648Y CN 201027648 Y CN201027648 Y CN 201027648Y CN U2007200345430 U CNU2007200345430 U CN U2007200345430U CN 200720034543 U CN200720034543 U CN 200720034543U CN 201027648 Y CN201027648 Y CN 201027648Y
- Authority
- CN
- China
- Prior art keywords
- direct rotary
- spline
- lead screw
- shaft
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A straight rotary screw pump relates to a power drive structure used in oil field exploitation, comprising a stator and a rotor, as well as a universal joint, a transmission shaft, a straight rotary lead screw pair and a spline pair which are arranged from the bottom up, wherein, the stator is arranged at the circumference of the rotor; the lower end of the universal joint is connected with the upper end of the rotor; the circumference of the transmission shaft is provided with three bevel gears in external gearing one another; two one-way clutches are respectively arranged in the same direction between the two bevel gears positioned at outside and the transmission shaft; the straight rotary lead screw pair comprises a straight rotary lead screw axis, a lead screw sleeve, a straight rotary ball-return block and a roll ball; the spline pair comprises a spline shaft, a spline sleeve, a ball-return block and a spline roll ball. The utility model realizes a simple structure, wide application range, reliable operation and high production efficiency.
Description
Technical field
The utility model relates in the oilfield exploitation power transmission arrangment when using the screw pump exploitation, particularly utilizes on the oil field existing pumping unit as the drive mechanism of the driving force of screw pump.
Background technique
Screw pump is a kind of novel interior engagement rotarydisplacement pump, has advantages such as efficient height, suction capacity are strong, wide accommodation, has obtained using widely in the oil field.Pumping unit is as the nucleus equipment in the field produces, all have numerous machine oil recovery wells at home and abroad based on " three take out ", comprise beam pumping unit, no beam pumping unit, friction winding formula pumping unit and straight line motor drive type pumping unit etc., all be to drive sucker rod by pumping unit to do straight line motion up and down reciprocatingly, the work of bar plunger oil-well pump arranged thereby drive.Along with the continuous development of each elephant exploitation of China, the Oilfield developing difficulty constantly increases, and the viscous crude of high sand content, high oil-gas ratio has appearred in the oil well in many oil fields in succession.And plunger pump can only be used for the extraction of thin oil and wet oil, and it is then powerless that height is contained sand oil, viscous crude.The above-mentioned crude oil of screw pump exploitation is used in many oil fields, has all obtained effect preferably.The driving mode of screw pump oil production system mainly is following three classes at present: one, motor-driven screw pump is called ground driving screw pump again: it is made up of screw pump, oil recovery roofbolt, anchor tool and surface drive etc.This system is when work, and surface drive is given the oil recovery roofbolt by after slowing down with transmission of power, drives the screw pump rotation through the oil recovery roofbolt again, thereby crude oil is given rise to ground from the down-hole; Two, electric oil submerged screw pump: the main unit that comprises screw pump and oil-submersible motor is all in the down-hole.During work, cable is passed to oil-submersible motor with electric power from ground, and fluid then gives rise to well head by oil pipe; Three, the screw pump that surges: it mainly partly is made up of solution feed pump, bypass valve, hydraulic motor and screw pump etc.During work, solution feed pump is supplied with hydraulic motor with high voltage power liquid, and the hydraulic motor rotation drives screw pump work, thereby the annular space of the shaft bottom crude oil that will mix with power fluid by oil pipe, sleeve pipe gives rise to well head.Contain sand oil, viscous crude crude oil for height, adopting screw pump is that desirable machine is adopted mode.No matter adopt the screw pump of which kind of driving mode, all the motivational drive mode with the pumping unit of present use does not match, and will mean has scrapping of countless pumping units, causes the increase of enterprise investment expense, has improved cost, has wasted resource.
The model utility content
The utility model purpose provides a kind of simple in structure, applied widely, reliable operation, direct rotary screw pump that manufacturing efficiency is high.
The utility model comprises stator, rotor, and stator is arranged on the periphery of rotor, also comprises Hooks coupling universal coupling, transmission shaft, direct rotary lead screw pair, the spline pair arranged from the bottom up, and the lower end of Hooks coupling universal coupling is connected with the upper end of rotor; The periphery of transmission shaft is provided with three bevel gears of arranging along the propeller shaft length direction, three bevel gear outer gearings each other, between two bevel gears in the outside and transmission shaft two overrunning clutchs are set respectively, the installation direction of described two overrunning clutchs is identical; The direct rotary lead screw pair comprises that direct rotary lead screw shaft, screw set, direct rotary return pearl piece, ball, the outer wall of direct rotary lead screw shaft is provided with spiral chute, the peripheral socket direct rotary cover of direct rotary lead screw shaft, the two ends of direct rotary cover are provided with direct rotary and return the pearl piece, between the corresponding spiral chute on direct rotary cover and the direct rotary lead screw shaft ball are set; Spline pair comprises splined shaft, spline housing, returns pearl piece, spline ball, and the outer wall of splined shaft is provided with straight trough, the peripheral socket spline housing of splined shaft, and the two ends of spline housing are provided with back the pearl piece, between the corresponding straight trough on spline housing and the splined shaft spline ball are set.
The utility model in use, pumping unit drives sucker rod and does straight line motion up and down reciprocatingly, make splined shaft, direct rotary lead screw shaft do reciprocating linear motion by connecting sleeve, again by the direct rotary lead screw pair, be the reciprocal rotary driving force square of direct rotary cover with the reciprocating linear power-supply change-over of lead screw shaft, pass through drive sleeve, make bevel gear make crankmotion, utilize two overrunning clutchs simultaneously, crankmotion is transformed to unidirectional rotatablely moving, rotate in order to the drive screw pump rotor.The purpose of using spline pair is to be the sucker rod guiding, and the countertorque that produces during balance screw pump rotary work.By using this novel direct rotary screw pump, can utilize old pumping unit to come the drive screw pump work as power plant, make old pumping unit and sucker rod obtain utilizing again, reduced reforming cost, saved resource; Three bevel gears with the bearing supporting on the coat, bevel gear is outer gearing each other, change the sense of rotation of outside bevel gear by the bevel gear of centre, make that the sense of rotation of two bevel gears in the outside is opposite all the time, no matter transmission shaft is a postive direction in the time of pumping unit work is rotated or counter-rotation, can both satisfy the need of work of screw pump rotor, improve manufacturing efficiency.That the utility model has been realized is simple in structure, applied widely, reliable operation, purpose that manufacturing efficiency is high.
Description of drawings
Fig. 1 is the structural representation of the utility model first half.
Fig. 2 is the structural representation of the utility model Lower Half.
Fig. 3 be the A-A of Fig. 2 to, B-B to plan view.
Embodiment
As shown in the figure, the utility model is mainly by sucker rod 1, connecting sleeve 2, splined shaft 3, overcoat (one) 4, spline housing 5, overcoat (two) 6, spline bearing 7, direct rotary lead screw shaft 8, direct rotary cover 9, drive sleeve (one) 10, drive sleeve (two) 11, bevel gear (one) 12, bearing (one) 13, bearing support 14, bearing (ball) cover 15, bearing (two) 16, bearing (three) 17, tapered roller bearing 18, overcoat (three) 19, locking nut 20, stator cover 21, Hooks coupling universal coupling 22, rotor 23, stator 24, transmission shaft 25, bevel gear (three) 26, bevel gear (two) 27, radial ball bearing 28, spline ball 29, return pearl piece 30, direct rotary returns pearl piece 31, ball 32 is formed.Be provided with O-ring seals and lip-type packing at each sealing position, can prevent the fluid seepage.
Connect with connecting sleeve 2 between sucker rod 1 and the splined shaft 3, spline housing 5 is fixedly connected in the connecting sleeve () 4, direct rotary cover 9 is bearing in the overcoat (two) 6 by bearing 7, connect with screw between splined shaft 3 and the direct rotary lead screw shaft 8, bevel gear (one) 12 is bearing in the overcoat (three) 19 by bearing () 13, bevel gear (two) 27 is by bearing (two) 16, bearing support 14 and bearing (ball) cover 15 are bearing in the overcoat (three) 19, bevel gear (three) 26 is bearing in the overcoat (three) 19 by bearing (three) 17, transmission shaft 25 is by tapered roller bearing 18, radial ball bearing 28 is bearing in overcoat (three) 19 and the drive sleeve (two) 11, an overrunning clutch is being housed respectively between bevel gear () 12 and the transmission shaft 25 and between bevel gear (three) 26 and the transmission shaft 25, stator cover 21 is fixed in the overcoat (three) 19 by being threaded, and with locking nut 20 locking, connect with Hooks coupling universal coupling 22 between transmission shaft 25 and the pump rotor 23, pump stator 24 is adhesive in the stator cover 21.When sucker rod 1 moves upward, by connecting sleeve 2, splined shaft 3, driving direct rotary lead screw shaft 8 moves upward, conversion by direct rotary mechanism, make direct rotary cover 9 do the clockwise direction rotation,, drive bevel gear () 12 and do the clockwise direction rotation by drive sleeve () 10, drive sleeve (two) 11, utilize the commutation of bevel gear (two) 27 simultaneously, drive bevel gear (three) 26 and do rotation counterclockwise.This moment, the overrunning clutch (A-A position) of 25 of bevel gear () 12 and transmission shafts entered jointing state, overrunning clutch between bevel gear (three) 26 and the transmission shaft 25 (B-B position) is in separated state, make also clockwise direction rotation of transmission shaft 25,25 of transmission shafts drive direct rotary screw pump rotor 23 by Hooks coupling universal coupling 22 and rotate, thus the drive screw pump work.When sucker rod 1 is made downward straight line motion, by spline mechanism and direct rotary mechanism, make direct rotary cover 9 counterclockwise rotate, the rotation of bevel gear (three) 26 clockwise directions, overrunning clutch (B-B position) between bevel gear (three) 26 and the transmission shaft 25 enters jointing state at this moment, overrunning clutch between bevel gear () 12 and the transmission shaft 25 (A-A position) is in separated state, thereby drive transmission shaft 25 and still do the clockwise direction rotation, make also clockwise direction rotation of rotor 23 by Hooks coupling universal coupling 22, the folk prescription of having realized screw pump rotor 23 is to continuous rotation.Fluid enters from the bottom of screw pump, discharges from the oil outlet of pump, enters the central oil passage of transmission shaft 25 by the side direction oilhole of transmission shaft 25, central oil passage along direct rotary lead screw shaft 8, the central oil passage of splined shaft 3 enters the central oil passage of sucker rod 1, thereby is thus lifted to ground.
Claims (1)
1. the direct rotary screw pump comprises stator, rotor, and stator is arranged on the periphery of rotor, it is characterized in that also comprising Hooks coupling universal coupling, transmission shaft, direct rotary lead screw pair, the spline pair arranged from the bottom up, and the lower end of Hooks coupling universal coupling is connected with the upper end of rotor; The periphery of transmission shaft is provided with three bevel gears of arranging along the propeller shaft length direction, three bevel gear outer gearings each other, between two bevel gears in the outside and transmission shaft two overrunning clutchs are set respectively, the installation direction of described two overrunning clutchs is identical; The direct rotary lead screw pair comprises that direct rotary lead screw shaft, screw set, direct rotary return pearl piece, ball, the outer wall of direct rotary lead screw shaft is provided with spiral chute, the peripheral socket direct rotary cover of direct rotary lead screw shaft, the two ends of direct rotary cover are provided with direct rotary and return the pearl piece, between the corresponding spiral chute on direct rotary cover and the direct rotary lead screw shaft ball are set; Spline pair comprises splined shaft, spline housing, returns pearl piece, spline ball, and the outer wall of splined shaft is provided with straight trough, the peripheral socket spline housing of splined shaft, and the two ends of spline housing are provided with back the pearl piece, between the corresponding straight trough on spline housing and the splined shaft spline ball are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200345430U CN201027648Y (en) | 2007-02-12 | 2007-02-12 | Straight-rotary screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200345430U CN201027648Y (en) | 2007-02-12 | 2007-02-12 | Straight-rotary screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027648Y true CN201027648Y (en) | 2008-02-27 |
Family
ID=39131854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200345430U Expired - Fee Related CN201027648Y (en) | 2007-02-12 | 2007-02-12 | Straight-rotary screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027648Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846060A (en) * | 2010-05-05 | 2010-09-29 | 戚威 | Reciprocating defueling pump with rotating oil pipe |
| CN101016834B (en) * | 2007-02-12 | 2012-04-25 | 扬州大学 | Straight line driving screw pump oil production system |
| CN101709707B (en) * | 2009-12-30 | 2012-09-26 | 扬州大学 | Reciprocating oil-pumping screw pump of ball inverse helical driving type |
| CN103307241A (en) * | 2013-06-14 | 2013-09-18 | 西南石油大学 | Swing-up type clutch device |
| CN110552894A (en) * | 2019-09-23 | 2019-12-10 | 扬州大学 | Shaftless pump and using method thereof |
| CN111980632A (en) * | 2020-08-21 | 2020-11-24 | 宁波修远机电有限公司 | Reciprocating oil pumping device of submersible motor |
-
2007
- 2007-02-12 CN CNU2007200345430U patent/CN201027648Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016834B (en) * | 2007-02-12 | 2012-04-25 | 扬州大学 | Straight line driving screw pump oil production system |
| CN101709707B (en) * | 2009-12-30 | 2012-09-26 | 扬州大学 | Reciprocating oil-pumping screw pump of ball inverse helical driving type |
| CN101846060A (en) * | 2010-05-05 | 2010-09-29 | 戚威 | Reciprocating defueling pump with rotating oil pipe |
| CN103307241A (en) * | 2013-06-14 | 2013-09-18 | 西南石油大学 | Swing-up type clutch device |
| CN110552894A (en) * | 2019-09-23 | 2019-12-10 | 扬州大学 | Shaftless pump and using method thereof |
| CN110552894B (en) * | 2019-09-23 | 2024-04-19 | 扬州大学 | Shaftless pump and application method thereof |
| CN111980632A (en) * | 2020-08-21 | 2020-11-24 | 宁波修远机电有限公司 | Reciprocating oil pumping device of submersible motor |
| CN111980632B (en) * | 2020-08-21 | 2022-06-03 | 宁波修远机电有限公司 | Reciprocating oil pumping device of submersible motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201027648Y (en) | Straight-rotary screw pump | |
| CN101016834B (en) | Straight line driving screw pump oil production system | |
| GB2454700A (en) | A progressive cavity device with drive connections at both ends. | |
| CN201129297Y (en) | Double screw rod electric submersible pump | |
| CN201013587Y (en) | Straight-line driving type intermittent rotating screw pump | |
| CN100494682C (en) | Straight line driving reciprocating rotation screw pump | |
| CN201778651U (en) | Motor-driven drilling top driving force faucet device | |
| CN100390372C (en) | Underground reciprocating oil puming machine driven by rotary motor | |
| CN201943926U (en) | Novel power-driven oil-submersible lifting plunger piston defueling pump | |
| CN208718914U (en) | Reciprocating rotation screw pump based on the driving of sucker rod pumping bar | |
| CN203009704U (en) | Spindle transmission mechanism for plunger pump | |
| CN201407016Y (en) | Single-machine multi-well horizontal flexible energy-saving pumping unit | |
| CN103510891B (en) | A kind of connecting pipes injection head driving device | |
| CN101709707B (en) | Reciprocating oil-pumping screw pump of ball inverse helical driving type | |
| CN105715545B (en) | A kind of latent oil directly-driven screw pump card gear | |
| CN201137469Y (en) | Down-hole hydraulic reversing device | |
| CN2665408Y (en) | Down-hole oil extraction double screw pump | |
| CN206220844U (en) | Gravity type helicoid hydraulic motor | |
| CN101975037A (en) | Method and device for conversing direct and reverse circulations of workover fluid in oil well | |
| CN201401128Y (en) | Top driving water faucet device for oil and water well maintenance operation | |
| CN2173871Y (en) | Bidirectional symmetric single screw oil pump | |
| CN201810237U (en) | Workover fluid underground positive and negative circulation conversion device | |
| CN201650750U (en) | Screw pump capable of reciprocating oil pumping | |
| CN201013586Y (en) | Waterpower screw pump | |
| CN206571419U (en) | A kind of blade-type underground power drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20110212 |