CN202560171U - Linear-transmission pumping unit - Google Patents
Linear-transmission pumping unit Download PDFInfo
- Publication number
- CN202560171U CN202560171U CN201220135376XU CN201220135376U CN202560171U CN 202560171 U CN202560171 U CN 202560171U CN 201220135376X U CN201220135376X U CN 201220135376XU CN 201220135376 U CN201220135376 U CN 201220135376U CN 202560171 U CN202560171 U CN 202560171U
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- China
- Prior art keywords
- motor
- transmission
- pumping unit
- screw
- sucker rod
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- 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
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Abstract
The utility model relates to an oil field oil extracting device, in particular to a linear-transmission pumping unit. The pumping unit comprises a motor and a pumping rod which is arranged below the motor. A spiral transmission mechanism is arranged between the pumping rod and the motor, the upper end of the spiral transmission mechanism is connected with the motor, and the lower end is connected with the pumping rod which is driven by the spiral transmission mechanism to move up and down in a reciprocating mode. By means of the structure, a reducer and a four-connection-bar mechanism of a beam-pumping unit are not needed, so that the linear-transmission pumping unit is reasonable and simple in structure design and small in size; the arranged motor converts electric energy into the reciprocating up-and-down motion of the pumping rod directly, the energy consumption is small, and the transmission efficiency is high; simultaneously, by utilizing the direct drive mode of the motor, transmission links are few, the operation is reliable, and the transmission is safe and stable, accordingly, the linear-transmission pumping unit has the advantages of being long in service life, good in energy saving effect, simple and convenient to mount, economic and durable, low in using cost, and the like.
Description
Technical field
The utility model relates to oil field equipment, specifically is a kind of straight line transmission oil pumping machine.
Background technology
At present, the oil pumper that is used for recovering the oil in the oil field is traditional beam pumping unit mostly, and this oil pumper is because the architectural feature of itself exists volume big, and energy consumption is high, and use cost is high, and therefore shortcomings such as serious waste of resources need be improved prior art.
Summary of the invention
The technical problem that the utility model will solve provides the straight line transmission oil pumping machine that a kind of volume is little, energy consumption is low, easy to install.
In order to solve the problems of the technologies described above; The straight line transmission oil pumping machine of the utility model; The sucker rod that comprises motor and be arranged on the motor below is provided with screw-drive mechanism between sucker rod and the motor, and the upper end of said screw-drive mechanism links to each other with motor; The lower end links to each other with sucker rod, and sucker rod is driven by screw-drive mechanism and pumps.
Said screw-drive mechanism comprises the leading screw by the motor-driven rotation, and drives the nut that moves up and down by leading screw, and nut is outside equipped with guide rail, and sucker rod is arranged on the installing rack lower end of nut and together pumps with nut.
Said motor is a variable-frequency motor.
Said screw-drive mechanism is arranged in the cavity, and the bottom of cavity is provided with flange, and flange is connected with wellhead flange.
After adopting above-mentioned structure; Owing to be provided with screw-drive mechanism between sucker rod and the motor; Can directly drive sucker rod through screw-drive mechanism and pump, need not the reducer and the quadric chain of beam pumping unit, make its structure be provided with rationally simple, volume is little; The motor that is provided with directly converts electric energy into sucker rod pump, and energy consumption is little, transmission efficiency is high; Therefore adopt the mode of motor direct-drive also to make its transmission link few, reliable simultaneously, the transmission safety and steady has long service life, good energy-conserving effect, install simple and convenient, economy and durability, characteristics such as use cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model straight line transmission oil pumping machine.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment, the utility model straight line transmission oil pumping machine is done further explain.
As shown in the figure, the straight line transmission oil pumping machine of the utility model, the sucker rod 2 that comprises motor 1 and be arranged on the motor below; Motor 1 can be set to variable-frequency motor; Be provided with screw-drive mechanism between sucker rod 2 and the motor 1, screw-drive mechanism comprises leading screw 3, and is enclosed within the nut 4 that can move up and down along leading screw on the leading screw 3; Nut 4 is outside equipped with guide rail 5; Said sucker rod 2 is arranged on the lower end of nut 4 installing racks, and motor 1 is connected with leading screw 3 through shaft coupling, and sucker rod 2 can drive upper and lower reciprocating motion by nut.
State screw-drive mechanism and be arranged in the cavity 6, the bottom of cavity 6 is provided with flange 7, and said flange is connected with wellhead flange 8.
During use, variable-frequency motor 1 drives leading screw 3 rotations through shaft coupling 9, and the nut 4 that links to each other with leading screw 3 moves as straight line in guide rail 5, drives sucker rod 2 rectilinear motions; Automatically the 1 positive and negative rotation of control variable-frequency motor can realize the reciprocating motion of sucker rod 2, changes the frequency of electric current, can realize that strokes per minute (dash/minute) changes, and has satisfied different working condition requirements.
Claims (4)
1. straight line transmission oil pumping machine; It is characterized in that: the sucker rod (2) that it comprises motor (1) and is arranged on the motor below; Be provided with screw-drive mechanism between said sucker rod (2) and the motor (1); The upper end of said screw-drive mechanism links to each other with motor (1), and the lower end links to each other with sucker rod (2), and said sucker rod (2) is driven by screw-drive mechanism and pumps.
2. according to the described straight line transmission oil pumping machine of claim 1; It is characterized in that: said screw-drive mechanism comprises the leading screw (3) by motor (1) driven in rotation; And drive the nut (4) move up and down by leading screw (3); Nut (4) is outside equipped with guide rail (5), and sucker rod (2) is connected nut installing rack lower end and together pumps with nut (4).
3. according to claim 1 or 2 described straight line transmission oil pumping machines, it is characterized in that: said motor (1) is a variable-frequency motor.
4. according to claim 1 or 2 described straight line transmission oil pumping machines, it is characterized in that: said screw-drive mechanism is arranged in the cavity (6), and the bottom of said cavity (6) is provided with flange (7), and said flange is connected with wellhead flange (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220135376XU CN202560171U (en) | 2012-04-01 | 2012-04-01 | Linear-transmission pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220135376XU CN202560171U (en) | 2012-04-01 | 2012-04-01 | Linear-transmission pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560171U true CN202560171U (en) | 2012-11-28 |
Family
ID=47209836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220135376XU Expired - Fee Related CN202560171U (en) | 2012-04-01 | 2012-04-01 | Linear-transmission pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289749A (en) * | 2019-05-31 | 2019-09-27 | 东南大学 | One kind being based on straight line-motor-driven pumping unit system of rotation double freedom and its control method |
-
2012
- 2012-04-01 CN CN201220135376XU patent/CN202560171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289749A (en) * | 2019-05-31 | 2019-09-27 | 东南大学 | One kind being based on straight line-motor-driven pumping unit system of rotation double freedom and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20160401 |