CN1508383A - Split motor-drived vertical-pipe reciprocating chain pumping unit - Google Patents
Split motor-drived vertical-pipe reciprocating chain pumping unit Download PDFInfo
- Publication number
- CN1508383A CN1508383A CNA021554382A CN02155438A CN1508383A CN 1508383 A CN1508383 A CN 1508383A CN A021554382 A CNA021554382 A CN A021554382A CN 02155438 A CN02155438 A CN 02155438A CN 1508383 A CN1508383 A CN 1508383A
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- China
- Prior art keywords
- well head
- motor
- standpipe
- way
- driven
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Abstract
The invention is a two-piece electric-machine drive vertical-tube type reciprocating-chain oil pumping unit, a beam-free one composed of wellhead large four-way, wellhead short section, vertical tube, electric machine, chain wheel and oil pumping rod. The large four-way is fixed at the wellhead and set with wellhead small four-way at the center; the well short section situated on the large four-way; the vertical tube situated on the short section, the top of the vertical tube set with a cap, and a ring balance weight slipping over the periphery of the vertical tube and able to slide upwards and downwards along the vertical tube; the electric machine is a two-piece permanent-magnet low-speed synchronous one, fixed on the cap and the output shaft supported on the right and left pieces by bearings; the chain wheel connected to the center of the output shaft by bond and able to rotate forwards and reversely under the electric machine drive; one end of the chain linked with the balance weight, and the other one linked with the upper end of the oil pumping rod round the chain wheel; the lower end of the oil pumping rod passing through the small four-way to link up with the underground reciprocating pump.
Description
Technical field
The present invention relates to a kind of blue elephant that recovers the oil in the oil field that is used for, particularly relate to a kind of split type motor-driven standpipe type toward the compound catenary oil pumper.
Background technology
Press, the oil pumper that is used for recovering the oil in the oil field mainly is divided into two classes, i.e. beam-pumping unit and blue elephant.Do not have trip fine strain of millet oil pumper and have advantages such as good balance effect and easy realization long stroke, therefore be widely used in the deep-well oil-extraction field.Blue elephant of the prior art mainly contains the linear drives oil pumper of chain drive pumping unit, belt oil pumping machine and other types, its common feature is that oil pumper is installed in production wellhead one side, therefore complete machine is a lateral force, not only make the structure of oil pumper become numerous and jumbled, heavy, and manufacturing and mounting hardness are also bigger.In addition, because the motor speed height, must slow down through reducer, cause that drive path is long, drive disk assembly is many and the force-bearing situation more complicated of changement, so the complete machine fault rate is higher, maintenance workload is big, also be under some influence application life.
Summary of the invention
The standpipe type that purpose of the present invention promptly is a kind of split type motorized motions is provided is toward the compound catenary oil pumper, to simplify the blue elephant complete machine structure; Shorten its drive path simultaneously and reduce drive disk assembly, thereby reduce the complete machine fault rate, prolong its application life.
To achieve these goals, the present invention utilizes well head big four, well head tap, standpipe, motor, sprocket wheel and sucker rod to constitute a kind of split type motor-driven standpipe type toward the compound catenary oil pumper.The well head big four is fixed on the oil well mouth, and its central authorities are provided with the little four-way of well head; Well head tap is located on the well head big four and by flange and links to each other with well head tap, and its top is provided with the standpipe cap, and its outer race is provided with the annular flat weight that can slide up and down along standpipe; Motor is split type constant magnetism low-speed synchronous motor, is fixed on the standpipe cap, and its output shaft two ends are bearing on the split left and right respectively by bearing; Sprocket wheel is connected in the central of motor output shaft by key also can be by the forward and reverse rotation of motor-driven; One end of chain links to each other with balance weight, and the other end is walked around sprocket wheel and linked to each other with the sucker rod upper end; The lower end of sucker rod is passed the little four-way of well head and is linked to each other with the down-hole reciprocating pump.
In above oil pumper, complete machine adopt standpipe type structure and be positioned at production wellhead directly over, not only simple in structure, profile is regular, make and install also than being easier to.The forward and reverse rotation of split type motor direct-drive sprocket wheel, drive path is short, drive disk assembly is few, so the complete machine fault rate is low and be easy to maintenance, can increase the service life.Below in conjunction with specific embodiment the technical characterictic of the split type motor-driven standpipe type of the present invention toward the compound catenary oil pumper is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the split type motor-driven standpipe type of the present invention toward the compound catenary oil pumper.
The specific embodiment
As shown in Figure 1, the standpipe type of the split type motorized motions of the present invention mainly is made of well head big four, well head tap, standpipe, motor, sprocket wheel and sucker rod toward the compound catenary oil pumper.Well head big four 1 is fixed on the oil well mouth, and its central authorities are provided with the little four-way 2 of well head.Well head tap 3 is located on the well head big four 1 and by flange 4 and links to each other with well head big four 1, and its side is provided with dodge gate, opens dodge gate and can safeguard the little four-way 2 of well head.Standpipe be located in well head tap 3 on and be provided with standpipe cap 7 by flange 6 its top that links to each other with well head tap 3, its outer race is provided with the annular flat weight 8 that can slide up and down along standpipe; Standpipe 5 outer walls of balance weight 8 belows are provided with anticollision device, collision-prevention device 9, clash into lower flange 6 to prevent balance weight 8 because of the unexpected fracture of chain.Motor 10 is split type constant magnetism low-speed synchronous motor, is fixed on the standpipe cap 7, and its output shaft 11 two ends are supported on the split left and right respectively by bearing 12; Its output axle head is provided with a brake disc 13.Sprocket wheel 14 is connected in the central authorities of motor 10 output shafts 11 and can drives forward and reverse rotation by motor 10 by key.One end of chain 15 links to each other with balance weight 8, and the other end is walked around sprocket wheel 14 and linked to each other with sucker rod 16 upper ends; The lower end of sucker rod 16 is passed the little four-way 2 of well head and is linked to each other with the down-hole reciprocating pump.
When the present invention worked, motor 10 is forward and reverse rotation under the control of control system, and power driven sprockets 14 forward and reverse rotations of output also drive chain 15 reciprocating motions, and then drove down-hole reciprocating pump realization oil pumping.The time of control motor 10 forward and reverse rotations can be controlled the stroke and the jig frequency of oil pumper, to adapt to different well ' s conditions.Because an end of chain 15 links to each other with balance weight 8, the gravity that makes balance weight 8 directly and the gravity of sucker rod 16 balance each other, can alleviate greatly sprocket wheel 14 rotary load, obtain the counterbalance effect of the best.
In sum as can be known, the present invention is simple in structure, profile is regular, makes and installs all than being easier to.The forward and reverse rotation of split type motor direct-drive sprocket wheel, drive path is short, drive disk assembly is few, can improve the moving component force-bearing situation, so low its of complete machine fault rate is easy to maintenance, can increase the service life.
Claims (4)
1, a kind of split type motor-driven standpipe type is characterized in that being made of well head big four, well head tap, standpipe, motor, sprocket wheel, chain and sucker rod toward the compound catenary oil pumper; The well head big four is fixed on the oil well mouth, and its central authorities are provided with the little four-way of well head; Well head tap is located on the well head big four and by flange and links to each other with the well head big four; Vertical tube socket drops on the well head tap and by flange and links to each other with well head tap, and its top is provided with the standpipe cap, and its outer race is provided with the annular flat weight that can slide up and down along standpipe; Motor is split type constant magnetism low-speed synchronous motor, is fixed on the standpipe cap, and its output shaft two ends are supported on the split left and right respectively by bearing; Sprocket wheel is connected in the central of motor output shaft by key also can be by the forward and reverse rotation of motor-driven.One end of chain links to each other with balance weight, and the other end is walked around sprocket wheel and linked to each other with the sucker rod upper end; The lower end of sucker rod is passed the little four-way of well head and is linked to each other with the down-hole reciprocating pump.
2, split type motor-driven standpipe type according to claim 1 is characterized in that toward the compound catenary oil pumper described well head tap side is provided with dodge gate.
3, split type motor-driven standpipe type according to claim 1 is characterized in that toward the compound catenary oil pumper standing tube outer wall of described balance weight below is provided with anticollision device, collision-prevention device.
4, split type motor-driven standpipe type according to claim 1 is characterized in that toward the compound catenary oil pumper described motor output shaft end has brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021554382A CN1508383A (en) | 2002-12-13 | 2002-12-13 | Split motor-drived vertical-pipe reciprocating chain pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021554382A CN1508383A (en) | 2002-12-13 | 2002-12-13 | Split motor-drived vertical-pipe reciprocating chain pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1508383A true CN1508383A (en) | 2004-06-30 |
Family
ID=34235906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021554382A Pending CN1508383A (en) | 2002-12-13 | 2002-12-13 | Split motor-drived vertical-pipe reciprocating chain pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508383A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041978A (en) * | 2009-10-12 | 2011-05-04 | 张学鲁 | Rod hiding type oil pumping unit |
| CN101289930B (en) * | 2008-06-13 | 2011-08-31 | 哈尔滨泰富实业有限公司 | Oil pumping machine of circular disc permanent magnetism wind water double cold linear motor |
-
2002
- 2002-12-13 CN CNA021554382A patent/CN1508383A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289930B (en) * | 2008-06-13 | 2011-08-31 | 哈尔滨泰富实业有限公司 | Oil pumping machine of circular disc permanent magnetism wind water double cold linear motor |
| CN102041978A (en) * | 2009-10-12 | 2011-05-04 | 张学鲁 | Rod hiding type oil pumping unit |
| CN102041978B (en) * | 2009-10-12 | 2013-12-18 | 张学鲁 | Rod hiding type oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |