CN107443013A - Equal-wall-thickness short-amplitude hypocycloid screw pump and stator pump barrel machining method - Google Patents
Equal-wall-thickness short-amplitude hypocycloid screw pump and stator pump barrel machining method Download PDFInfo
- Publication number
- CN107443013A CN107443013A CN201710569158.4A CN201710569158A CN107443013A CN 107443013 A CN107443013 A CN 107443013A CN 201710569158 A CN201710569158 A CN 201710569158A CN 107443013 A CN107443013 A CN 107443013A
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- China
- Prior art keywords
- stator
- shell
- pump
- pump barrel
- stator pump
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003754 machining Methods 0.000 title description 4
- 238000003672 processing method Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 238000007127 saponification reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of oil extraction in oil fields, and belongs to a constant-wall-thickness short-amplitude hypocycloid screw pump and a stator pump barrel processing method for improving the efficiency of a pump system, improving the pump detection period and prolonging the service life. The invention solves the problems of low efficiency and high sinking degree in the middle and later periods of the screw pump system. A short-amplitude hypocycloid equal-wall-thickness screw pump comprises a stator pump cylinder (1), a rubber lining (2), a metal rotor (3) and a cavity (4), wherein the stator pump cylinder (1) is connected with the rubber lining (2) in a bonding mode, the metal rotor (3) is in interference fit with the rubber lining (2), and the cavity (4) is located between the metal rotor (3) and the rubber lining (2); the invention also discloses a method for processing the stator pump cylinder of the equal-wall-thickness short-amplitude hypocycloid screw pump, and the method has the advantages of improving the matching precision of the rotor, reducing the mutual impact of the stator and the rotor, prolonging the service life and the like.
Description
Technical field
The present invention relates to oil extraction in oil field technical field, belongs to for improving pump system efficiency, improves pump detection period, extension makes
The wall thickness curtate hypocycloid screw pump such as one kind with the life-span and stator pump barrel processing method.
Background technology
In field of oil field oil extraction, screw pump obtained as a kind of lifting equipment in viscous crude, containing sand, high-gas-contained well compared with
Good application and adaptability, there is simple in construction, convenient installation.With the exploitation in oil field, conventional screw pump is being applied
During be primarily present problems with, the high pump efficiency duration of runs first is short, and system effectiveness is relatively low.Secondly because pump jacking capacity is poor
The problems such as causing middle and later periods submergence high.
The content of the invention
It is an object of the invention to provide for improving pump barrel machining accuracy and mechanical strength, die cavity inwall thin and thick is uniform, type
Line is excessively continuous round and smooth, while improves the wall thickness curtate hypocycloid screw pump such as system effectiveness and one kind of pump detection period and stator pumps
Cylinder processing method.
The technical solution adopted in the present invention is：A kind of curtate hypocycloid iso-wall thickness progressive cavity pump is by stator pump barrel, in rubber
Lining, metallic rotator, wherein die cavity composition, stator pump barrel and rubber liner bonding connection, metallic rotator are matched somebody with somebody with rubber liner interference
Close, die cavity is between metallic rotator and rubber liner；A kind of stator pump barrel processing side for waiting wall thickness curtate hypocycloid screw pump
Method is as follows：
A, seal and bulge test has been carried out to 6-8mm seamless steel pipes first, 6-8mm seamless steel pipes start in 30-32Mpa pressure
Deformation；
B, the shell of length needed for 6-8mm seamless steel pipes are cut into according to stator pump barrel compact dimensions, first it is entered before processing
Row alignment, then carries out cylindrical roughing into shell；
C, spheroidizing processing is carried out to shell, hardness drops to 190 ± 5HB after annealing；
D, after to shell sandblasting scale removal, phosphorating treatment is carried out to outer surface；
E, after carrying out phosphorating treatment to shell, clean up, be lubricated processing, lubricated can using saponification lubrication method or
The percentage by weight of aqueous graphite lubricating method, aqueous graphite lubricating method water and graphite is 1：8；
F, shell one end being fixed on the chuck of extruder feed mechanism, the other end inserts the guide end of forcing press chamber,
Extruder feed mechanism drives shell to do corresponding radial rotating and axial movement；
G, extruder feed mechanism and forcing press mutual cooperation intermittent movement, extruder feed mechanism fortune
After dynamic stopping, forcing press starts upper and lower motion, and radial direction rotating speed selectable range is 11-13r/min, moves axially basis
Stator pump barrel helical pitch requires setting, with movement of the shell in die cavity, is squeezed into the stator pump barrel of screw type.
The beneficial effects of the invention are as follows：
Thickness Deng wall thickness curtate hypocycloid screw pump stator liner rubber is basically identical, and chamber inner surface spiral uniformity is high,
In rotor rotation process with stator friction caused by heat can make rubber that uniform expansion occur.Because die cavity is curtate hypocycloid
Structure, its end face line style is continuous, round and smooth, and in the absence of cusp, the phase between stator and rotor can be reduced in rotor rotation process
Interreaction force, the fit precision of rotor is improved, so as to further improve pump efficiency, extend the service life of pump, improve stator pumps
The machining accuracy of cylinder and the spiral uniformity of chamber inner surface.
Brief description of the drawings:Fig. 1 is the structural representation of the present invention；Fig. 2 is Fig. 1 A-A cross section views；Fig. 3 is this hair
Bright stator pump barrel extrusion forming machining sketch chart.
In figure：Pump barrel 1, rubber liner 2, metallic rotator 3, die cavity 4, forcing press 5, extruder feed mechanism 6.
Embodiment:The invention will be further described below in conjunction with the accompanying drawings：A kind of wall thickness spiral shell such as curtate hypocycloid
Bar pump is made up of stator pump barrel 1, rubber liner 2, metallic rotator 3, die cavity 4, and wherein stator pump barrel 1 is Nian Jie with rubber liner 2 connects
Connect, metallic rotator 3 is interference fitted with rubber liner 2, and die cavity 4 is between metallic rotator 3 and rubber liner 2；The wall thickness such as one kind
The stator pump barrel processing method of curtate hypocycloid screw pump is as follows：
A, seal and bulge test has been carried out to 8mm seamless steel pipes first, 8mm seamless steel pipes start to deform in 32Mpa pressure；
B, the shell of length needed for 8mm seamless steel pipes are cut into according to the compact dimensions of stator pump barrel 1, first it is carried out before processing
Alignment, then carries out cylindrical roughing into shell；
C, spheroidizing processing is carried out to shell, hardness drops to 190HB after annealing；
D, after to shell sandblasting scale removal, phosphorating treatment is carried out to outer surface；
E, after carrying out phosphorating treatment to shell, clean up, be lubricated processing, lubricated can
Using saponification lubrication method or aqueous graphite lubricating method, the percentage by weight of aqueous graphite lubricating method water and graphite is 1：8；
F, shell one end is fixed on the chuck of extruder feed mechanism 6, the other end inserts the guiding of the chamber of forcing press 5
End, extruder feed mechanism 6 drive shell to do corresponding radial rotating and axial movement
G, extruder feed mechanism 6 and the mutual cooperation intermittent movement of forcing press 5, after the motion of extruder feed mechanism 6 stops, pressure
Machine 5 starts upper and lower motion, and radial direction selection of speed is 12r/min, moves axially and requires to set according to the helical pitch of stator pump barrel 1, with
Movement of the shell in die cavity, it is squeezed into the stator pump barrel 1 of screw type.
Claims (1)
1. the wall thickness curtate hypocycloid screw pump such as one kind and stator pump barrel processing method, it is characterised in that：A kind of curtate hypocycloid
Iso-wall thickness progressive cavity pump is by stator pump barrel（1）, rubber liner（2）, metallic rotator（3）, die cavity（4）Composition, wherein stator pump barrel（1）
With rubber liner（2）Bonding connection, metallic rotator（3）With rubber liner（2）Interference fit, die cavity（4）Positioned at metallic rotator（3）
With rubber liner（2）Between；The stator pump barrel processing method of the wall thickness curtate hypocycloid screw pump such as a kind of is as follows：
A, seal and bulge test has been carried out to 6-8mm seamless steel pipes first, 6-8mm seamless steel pipes start in 30-32Mpa pressure
Deformation；
B, according to stator pump barrel（1）6-8mm seamless steel pipes are cut into the shell of required length by compact dimensions, first to it before processing
It is straightened, then carries out cylindrical roughing into shell；
C, spheroidizing processing is carried out to shell, hardness drops to 190 ± 5HB after annealing；
D, after to shell sandblasting scale removal, phosphorating treatment is carried out to outer surface；
E, after carrying out phosphorating treatment to shell, clean up, be lubricated processing, lubricated can using saponification lubrication method or
The percentage by weight of aqueous graphite lubricating method, aqueous graphite lubricating method water and graphite is 1：8；
F, shell one end is fixed on extruder feed mechanism（6）Chuck on, the other end insertion forcing press（5）Chamber is led
Xiang Duan, extruder feed mechanism（6）Shell is driven to do corresponding radial rotating and axial movement；
G, extruder feed mechanism（6）With forcing press（5）Mutual cooperation intermittent movement, extruder feed mechanism（6）Motion stops
Afterwards, forcing press（5）Start upper and lower motion, radial direction rotating speed selectable range is 11-13r/min, is moved axially according to stator pump barrel
（1）Helical pitch requires setting, with movement of the shell in die cavity, is squeezed into the stator pump barrel of screw type（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569158.4A CN107443013A (en) | 2017-07-13 | 2017-07-13 | Equal-wall-thickness short-amplitude hypocycloid screw pump and stator pump barrel machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569158.4A CN107443013A (en) | 2017-07-13 | 2017-07-13 | Equal-wall-thickness short-amplitude hypocycloid screw pump and stator pump barrel machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107443013A true CN107443013A (en) | 2017-12-08 |
Family
ID=60488005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710569158.4A Pending CN107443013A (en) | 2017-07-13 | 2017-07-13 | Equal-wall-thickness short-amplitude hypocycloid screw pump and stator pump barrel machining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107443013A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555107A (en) * | 2018-05-14 | 2018-09-21 | 西南石油大学 | Equal wall thickness metal stator bushing machinery is outer to be squeezed and fluid Inner pressurization compound forming processing methods |
| CN111173733A (en) * | 2020-01-08 | 2020-05-19 | 徐海英 | Short-amplitude inner cycloid type pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690436A (en) * | 2004-04-22 | 2005-11-02 | 高元芳 | Screw pump and method of production thereof |
| CN101900112A (en) * | 2010-08-03 | 2010-12-01 | 于瀚翔 | Rolling method of equal-wall-thickness multiple-threaded screw pump stator |
| CN102280976A (en) * | 2010-06-10 | 2011-12-14 | 怀特(中国)驱动产品有限公司 | Technological method for processing stator |
| WO2012068522A2 (en) * | 2010-11-19 | 2012-05-24 | Smith International, Inc. | Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps, such as mud motors |
| CN104988428A (en) * | 2015-07-09 | 2015-10-21 | 张家港市圣鼎源制管有限公司 | Small-caliber high-pressure oil pipe machining process |
-
2017
- 2017-07-13 CN CN201710569158.4A patent/CN107443013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690436A (en) * | 2004-04-22 | 2005-11-02 | 高元芳 | Screw pump and method of production thereof |
| CN102280976A (en) * | 2010-06-10 | 2011-12-14 | 怀特(中国)驱动产品有限公司 | Technological method for processing stator |
| CN101900112A (en) * | 2010-08-03 | 2010-12-01 | 于瀚翔 | Rolling method of equal-wall-thickness multiple-threaded screw pump stator |
| WO2012068522A2 (en) * | 2010-11-19 | 2012-05-24 | Smith International, Inc. | Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps, such as mud motors |
| CN104988428A (en) * | 2015-07-09 | 2015-10-21 | 张家港市圣鼎源制管有限公司 | Small-caliber high-pressure oil pipe machining process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555107A (en) * | 2018-05-14 | 2018-09-21 | 西南石油大学 | Equal wall thickness metal stator bushing machinery is outer to be squeezed and fluid Inner pressurization compound forming processing methods |
| CN108555107B (en) * | 2018-05-14 | 2023-10-24 | 西南石油大学 | Mechanical external extrusion and fluid internal pressure composite forming processing method for equal-wall-thickness metal stator bushing |
| CN111173733A (en) * | 2020-01-08 | 2020-05-19 | 徐海英 | Short-amplitude inner cycloid type pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171208 |
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| WD01 | Invention patent application deemed withdrawn after publication |