CN2504407Y - Ground driving gear of screw pump - Google Patents
Ground driving gear of screw pump Download PDFInfo
- Publication number
- CN2504407Y CN2504407Y CN01262310U CN01262310U CN2504407Y CN 2504407 Y CN2504407 Y CN 2504407Y CN 01262310 U CN01262310 U CN 01262310U CN 01262310 U CN01262310 U CN 01262310U CN 2504407 Y CN2504407 Y CN 2504407Y
- Authority
- CN
- China
- Prior art keywords
- screw pump
- pump surface
- rotor
- blade
- seal
- 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
- 238000007789 sealing Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 241000282414 Homo sapiens Species 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a floor driving apparatus of a screw pump, the floor driving apparatus comprises a driving changed-speed section, a holding back mechanism, a support section, and a seal section. The holding back mechanism can cause the torque reaction of an oil-extracted rod to be safely released by a damping mechanism consisting of a rotor, a transcendent clutch, an eccentric casing, blades and bearings, and springs, avoiding an injury to human beings and equipments; the support section adopts the pole-support structure, increasing the supporting strength and increasing the operation room; the seal section adopts the pattern that the lower part of a packing box is connected with a second seal apparatus consisting of an adapter, a seal ring, a connection plate, and positioning screws, being able to change and adjust the packing with the pressure at well head, and increasing the seal reliability, the operation is convenient and safe. The utility model can be widely used at the screw pump oil-production process and similar sites.
Description
One, technical field
The utility model relates to oil exploration equipment, relates in particular to a kind of screw pump surface drive.
Two, background technique
At present, the screw pump surface drive of The field generally partly is made up of transmission gear shift, anti-reverse, supporting and sealing etc.Its anti-reverse part is mainly installed ratchet and pawl arrangement near the input shaft of drive unit, can prevent the counter-rotating of sucker rod, but the moment of torsion that is stored on the sucker rod does not obtain discharging, when oil well operation and maintenance unit, often cause mechanical accidents such as operator's personal injury and rod parting, hide some dangers for to safety in production.The supporting portion of device, prior art is for up and down surrounding semicircle with steel plate between two support plates or greater than the supporting space of semicircle.This structure, free space is very little, brings inconvenience and difficulty to maintenance operation.The hermetic unit of device is the packing box structure of once sealing, compresses the purpose that packing box center packing reaches the sealing polished rod with pressure cap.But plant seal arrangement when changing the wearing and tearing packing, well head pressure must reduce to zero, otherwise can cause the phenomenon of spraying and spoiling over, and both befouling environment caused energy waste again, and is sometimes even can cause the person and mechanical accident, both inconvenient, dangerous again.
Three, summary of the invention
The technical problems to be solved in the utility model provides a kind of problem and shortage that overcomes or avoid existing in the above-mentioned background technology, and it is simple, easy to operate to have equipment again, uses reliable and secure screw pump surface drive.
The scheme of the utility model technical solution problem is:
The screw pump surface drive comprises the transmission gear shift part, anti-reverse mechanism, supporting portion and hermetic unit, its anti-reverse mechanism is made up of bearing cap spring, blade, free wheel device, casing, end cap, rotor and bearing, connects gearbox in this mechanism, connects the upper supporting plate of supporting portion down.Supporting portion is the several poles of vertical connection between upper and lower support plate, has increased the operating space.Hermetic unit is to connect a secondary sealer in the bottom of once sealing box, is made up of screw, Sealing, connecting plate and joint, and polished rod passes from its lumen centers.Casing is a round barrel shape, and inner chamber is an eccentric structure, and parts such as blade, rotor, free wheel device, bearing are installed wherein.Rotor is a hollow cylindrical structure, its endoluminal means free wheel device, blading on the excircle.Blade is a rectangle structure, and the hole of device spring is arranged on it, and its outer end closely contacts with the inwall of casing under the effect of spring.Spring is a round column structure, and device is on blade, and an end contacts with rotor, and the other end withstands on the blade.Between upper supporting plate and the lower carrier plate pole connected vertically be that the 2---10 root is cylindrical, rectangle or similar structure.The joint of secondary sealer is a hollow cylindrical structure, and the inner chamber of device Sealing is arranged at its top, and the axial central through hole by polished rod is arranged at the bottom.Some holes that are communicated with gearbox are arranged on the circumference of bearing cap.
The utility model and the background technique following advantage of having compared:
1, adopts anti-reverse mechanism, the sucker rod reverse torque is slowly discharged, avoided the generation of accidents such as dropout, improved the reliability of system, guaranteed safety work, production;
2, supporting portion has adopted branching rod structure, and its inner space increases, and has enough spaces to be used for the maintenance and the adjustment of packing box between pole, can work in all directions, has increased the convenience of operation.Simple in structure, supporting portion is stressed evenly, has increased its reliability;
3, adopted secondary sealer, when proper functioning, worked, when changing packing by a packing box, earlier positioning screwn is unclamped, upper connection is tightened, make the Sealing distortion, hold polished rod seal tightly, at this moment, just can under well head has the situation of pressure, open pressure cap and change packing, need not take measures to reduce pressure again, make easy to operate, time saving and energy saving, sealing is reliable, guarantees safety and environmental requirement.
Four, description of drawings
Fig. 1 is the utility model structure cross-sectional schematic;
The A--A cross-sectional schematic of Fig. 2 the utility model Fig. 1.
Five, embodiment
The utility model can be implemented with reference to the accompanying drawings, is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1 and Figure 2, installation side, gearbox 1 top card 2 and polished rod 3, lateral means input shaft 4, the bottom links to each other with bearing cap 5, casing 9.End cap 10 links to each other with casing 9, and output shaft 11 passes casing 9 and end cap 10 by gearbox.Free wheel device 8 inner rings link to each other with output shaft 11, and outer ring cartridge rotor 25, spring 6 are installed in the spring eye of blade 7, and an end contacts with rotor 25, and the other end withstands on the blade 7, device 1-5 spring (being expressed as 3 among the figure) on each blade.Blade 7 is contained on the excircle of rotor 25, and quantity is 2-15 (being expressed as 5 among the figure), and its outer end closely contacts with the inwall of casing 9.Upper supporting plate 22 links to each other with casing 9, and lower carrier plate 20 links to each other with connecting plate 19, vertical connection 2-10 root pole 21 (being expressed as 3 among the figure) between upper and lower support plate.One end of upper connection 14 connects pressure cap 12, and the other end jointing 18, packing 13 are contained in the upper connection 14, Sealing 17 is contained in the joint 18, Sealing 16 is contained in the upper connection 14, and joint 18 links together with connecting plate 19, and 1---8 positioning screwn 15 passes joint 18 walls and be screwed in the upper connection 14. Bearing 23,24,26 is contained on the output shaft 11.Hole 27 on the bearing cap 5 is connected with gearbox 1.Polished rod 3 passes the center of output shaft 11, end cap 10, pressure cap 12, upper connection 14, joint 18 and packing 13, Sealing 17 from gearbox 1, connects down-hole rod string and pump, and joint 18 the other ends are connected with well head.
During running, power through the transmission of gearbox 1, rotates output shaft 11 by input shaft 4, drives polished rod 3 by side's card 2 and rotates, thereby moment of torsion is passed on the subsurface progressive cavity by polished rod 3 and rod string.During normal operation; free wheel device 8 surmounts; when shutting down counter-rotating; free wheel device 8 work; drive rotor 25 counter-rotatings; the blade 7 that distributes on rotor 25 circumference closely contacts with casing 9 inwalls under spring 6 effects, forms several enclosed cavities, is full of gear oil in the chamber; because casing 9 is eccentric; so oil-feed when each enclosed cavity is communicated with hole 27, in the little place of enclosed cavity by the slit oil extraction between the part, because of the slit very little; just form bigger resistance; this resistance makes rotor 25 rotating speed that slows down, and the speed reversal during shutdown is fast more, and resistance is also big more; it is very slow that this just makes polished rod 3 speed reversal becomes when shutting down; and within a short period of time counter-rotating is stopped, thereby make sucker rod return to normal state, avoided because a series of person and the equipment damage that shut down to reverse and to cause.
Claims (8)
1, a kind of screw pump surface drive, comprise the transmission gear shift part, anti-reverse mechanism, supporting portion and hermetic unit, it is characterized in that anti-reverse mechanism is made up of bearing cap (5), spring (6), blade (7), free wheel device (8), casing (9), end cap (10) rotor (25) and bearing (23,24,26), connect the upper supporting plate (22) that connects supporting portion under the gearbox (1) in this mechanism; Supporting portion is vertical connection several poles (21) between upper and lower support plate (22,20); Hermetic unit is to connect a secondary sealer in the bottom of once sealing box, is made up of positioning screwn (15), Sealing (16,17), connecting plate (19) and joint (18), and polished rod (3) passes from the center.
2, screw pump surface drive according to claim 1 is characterized in that casing (9) is a round barrel shape, and inner chamber is an eccentric structure.
3, screw pump surface drive according to claim 1 and 2 is characterized in that rotor (25) is a hollow cylindrical structure, its endoluminal means free wheel device (8), blading on the excircle (7).
4, screw pump surface drive according to claim 3 is characterized in that blade (7) is a rectangle structure, and device has the hole of device spring (6) on it on rotor (25), and its outer end closely contacts with the inwall of casing (9).
5, according to claim 1 or 4 described screw pump surface drives, it is characterized in that spring (6) is a round column structure, device is in the spring eye of blade (7), and the one end contacts with rotor (25), and the other end withstands on the blade (7).
6, screw pump surface drive according to claim 1 is characterized in that the pole (21) between the upper and lower support plate (22,20) is cylindrical, the rectangular configuration of 2---10 root, direct-connected connecing between upper and lower support plate.
7, according to claim 1 or 2 or 6 described screw pump surface drives, the joint (18) that it is characterized in that secondary sealer is a hollow cylindrical structure, the inner chamber of device sealing material (16,17) is arranged at its top, and the axial central through hole by polished rod (3) is arranged at the bottom.
8,, it is characterized in that on the circumference of bearing cap (5) some holes (27) that are communicated with gearbox (1) being arranged according to claim 1 or 2 or 6 described screw pump surface drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01262310U CN2504407Y (en) | 2001-10-23 | 2001-10-23 | Ground driving gear of screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01262310U CN2504407Y (en) | 2001-10-23 | 2001-10-23 | Ground driving gear of screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504407Y true CN2504407Y (en) | 2002-08-07 |
Family
ID=33670070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01262310U Expired - Fee Related CN2504407Y (en) | 2001-10-23 | 2001-10-23 | Ground driving gear of screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504407Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455851C (en) * | 2006-10-25 | 2009-01-28 | 天津减速机股份有限公司 | Screw pump driving speed reducer for petroleum production |
| CN105201813A (en) * | 2015-09-08 | 2015-12-30 | 胜利油田现河工贸有限责任公司 | Testing system for screw pump ground driving device and application method of testing system |
-
2001
- 2001-10-23 CN CN01262310U patent/CN2504407Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455851C (en) * | 2006-10-25 | 2009-01-28 | 天津减速机股份有限公司 | Screw pump driving speed reducer for petroleum production |
| CN105201813A (en) * | 2015-09-08 | 2015-12-30 | 胜利油田现河工贸有限责任公司 | Testing system for screw pump ground driving device and application method of testing system |
| CN105201813B (en) * | 2015-09-08 | 2017-03-01 | 胜利油田现河工贸有限责任公司 | Screw pump ground driving device pilot system and its using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |