CN202483524U - Self-balancing double-horse-head slide-block-rack driven oil pumping unit - Google Patents
Self-balancing double-horse-head slide-block-rack driven oil pumping unit Download PDFInfo
- Publication number
- CN202483524U CN202483524U CN2012200859153U CN201220085915U CN202483524U CN 202483524 U CN202483524 U CN 202483524U CN 2012200859153 U CN2012200859153 U CN 2012200859153U CN 201220085915 U CN201220085915 U CN 201220085915U CN 202483524 U CN202483524 U CN 202483524U
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- China
- Prior art keywords
- horse head
- slide block
- horse
- self
- rack
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Abstract
The utility model belongs to a mechanical pumping apparatus and particularly relates to a self-balancing double-horse-head slide-block-rack driven oil pumping unit. A main horse head and an assistant horse head are respectively arranged on two ends of a balance beam, wherein the main horse head is connected with a sucker rod, the assistant horse head is a gear ring structure engaged with the slide block rack moving in the vertical direction; the slide block rack is connected with a crank connection rod mechanism, and a balance weight steel rope is arranged around the arc guiding slots on the periphery of the assistant horse head and then connected with the a balance weight pulley and the balance weight. The main and assistant horse heads on the left and the right ends of the balance beam, the balancer weight pulley block and the load are balanced automatically in the swinging process of the balance beam without generating additional torque on both ends; with the adoption of the gear-rack transmission, the engaged point is the instantaneous center point of the gear-rack mechanism, so the stress direction of the balance beam is kept vertical and constant so as to keep the transmission torque of the mechanism constant; the weight of the balance weight is greatly reduced by the movable and the static pulley blocks, and the balance weight has good stability and lead function with the adoption of a balance weight fixing guide rod; and the pumping unit is simply structured, safe, reliable and practical.
Description
Technical field
The utility model belongs to the oil pumping plant equipment, the two horse head slide block rack drives oil pumpers of particularly a kind of self-balancing.
Background technology
The beam type oil pumper of kowtowing is traditional pumping unit of oil field extensive use, is directly dragged by ordinary ac asynchronous motor usually.Adopt crank (band balance) endplay device to drive sucker rod, drive pumping of downhole pump fixed cycle, deliver to ground to the oil of down-hole.In a jig frequency,, and use machine operation at electronic/generating state along with the rising/decline of sucker rod.The uphill process motor absorbs the energy electric operation from electrical network; The load characteristic of decline process motor is the potential load, and motor such as down-hole negative pressure is in generating state in addition.But at present efficient is not high, energy consumption is big, motor disturbs the problem big, that crankshaft balance weight centrifugal force is big to the electrical network quality at the main oil production equipment-machine of kowtowing of labour-exist in China oil field, has reduced production efficiency, increases energy loss.
Summary of the invention
The utility model provides a kind of self-balancing two horse head slide block rack drives oil pumpers to the deficiency of existing oil pumper.
The technical scheme that the utility model adopts is:
The two ends of balance beam are respectively main horse head and secondary horse head, and main horse head is connected with sucker rod, and secondary horse head is a gear ring structure, and can be in the slide block tooth bar engagement of vertical direction motion; The lower end of slide block tooth bar is connected with crank-link mechanism; Secondary horse head periphery is provided with counterweight steel cable arc guide groove, and the counterweight steel cable is walked around counterweight steel cable arc guide groove and is connected with balancing weight with the counterweight assembly pulley.
Said balancing weight is installed on the counterweight location guide, and can move up and down along the counterweight location guide.
The slide block of said slide block tooth bar adopts the form of railcar, and tooth bar is fixed on the railcar.
The crank of said crank-link mechanism adopts telescopic structure, through the stroke of adjustment crank length adjustment sucker rod.
The beneficial effect of the utility model is:
(1) said oil pumper is simple in structure, and the transmission of transmission adopted rack-and-pinion is applicable to unattended field work condition, and is safe, reliable, practical.
(2) the major and minor horse head of balance beam right ends, counterweight assembly pulley and load on autobalance in the balance beam swing process, two ends all do not produce additional moment, save the power of motor and the energy.
(3) adopt the rack-and-pinion transmission, meshing point is the instantaneous point of pinion and rack, has guaranteed that thus balance beam receives the force direction vertical constant, makes mechanism driving moment constant, best results.
(4) counterweight steel cable arc guide groove can guarantee that the ballast water mean place is constant, and the sound pulley block structure reduces counterweight weight significantly, and the counterweight location guide makes counterweight have good stability and guidance quality.
Description of drawings
Fig. 1 is the structural representation of said oil pumper.
Label among the figure:
The 1-balance beam; 2-master's horse head; The secondary horse head of 3-; The 4-sucker rod; 5-slide block tooth bar; The 6-crank-link mechanism; The 7-balancing weight; 8-counterweight location guide.
The specific embodiment
The utility model provides a kind of self-balancing two horse head slide block rack drives oil pumpers, below in conjunction with the accompanying drawing and the specific embodiment the utility model is further specified.
As shown in Figure 1, the two ends of balance beam 1 are respectively main horse head 2 and secondary horse head 3, and main horse head 2 is connected with sucker rod 4, and secondary horse head 3 is a gear ring structure, and can mesh at the slide block tooth bar 5 that vertical direction moves; The slide block of slide block tooth bar 5 adopts the form of railcar, and tooth bar is fixed on the railcar.The lower end of slide block tooth bar 5 is connected with crank-link mechanism 6; Secondary horse head 3 peripheries are provided with counterweight steel cable arc guide groove, and the counterweight steel cable is walked around counterweight steel cable arc guide groove and is connected with balancing weight 7 with the counterweight assembly pulley.
Balancing weight 7 is installed on the counterweight location guide 8, and can move up and down along counterweight location guide 8.
Motor drives crank-link mechanism through reducer and promotes the 5 upper and lower reciprocating motions of slide block tooth bar; Secondary horse head 3 on the slide block tooth bar 5 drive balance beams 1 and balance beam 1 are around the upper and lower swing of support carriers; The main horse head 2 that the other end of balance beam 1 is installed drives sucker rod 4 upper and lower rectilinear motions, accomplishes oil pumping work.
Balance beam 1, main horse head 2, secondary horse head 3, balancing weight 7 and counterweight pulley are formed balanced structure, and it is constant in the balance beam swing process, to guarantee to receive force direction, and moment is autobalance at any time.The balance beam bearing is with balance beam 1 pro-rata, the stroke of scalable sucker rod 4.The crank of crank-link mechanism 6 adopts telescopic structure, through the stroke of adjustment crank length adjustment sucker rod 4.The counterweight assembly pulley is the sound pulley block structure, and counterweight weight is reduced significantly, and counterweight location guide 8 makes counterweight have good stability and guidance quality.
Claims (4)
1. two horse head slide block rack drives oil pumpers of self-balancing; It is characterized in that the two ends of balance beam (1) are respectively main horse head (2) and secondary horse head (3), main horse head (2) is connected with sucker rod (4); Secondary horse head (3) be a gear ring structure, and can mesh at the slide block tooth bar (5) of vertical direction motion; The lower end of slide block tooth bar (5) is connected with crank-link mechanism (6); Secondary horse head (3) periphery is provided with counterweight steel cable arc guide groove, and the counterweight steel cable is walked around counterweight steel cable arc guide groove and is connected with balancing weight (7) with the counterweight assembly pulley.
2. the two horse head slide block rack drives oil pumpers of self-balancing according to claim 1 is characterized in that said balancing weight (7) is installed on the counterweight location guide (8), and can move up and down along counterweight location guide (8).
3. the two horse head slide block rack drives oil pumpers of self-balancing according to claim 1 is characterized in that the slide block of said slide block tooth bar (5) adopts the form of railcar, and tooth bar is fixed on the railcar.
4. the two horse head slide block rack drives oil pumpers of self-balancing according to claim 1 is characterized in that the crank of said crank-link mechanism (6) adopts telescopic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200859153U CN202483524U (en) | 2012-03-08 | 2012-03-08 | Self-balancing double-horse-head slide-block-rack driven oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200859153U CN202483524U (en) | 2012-03-08 | 2012-03-08 | Self-balancing double-horse-head slide-block-rack driven oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483524U true CN202483524U (en) | 2012-10-10 |
Family
ID=46957951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200859153U Expired - Fee Related CN202483524U (en) | 2012-03-08 | 2012-03-08 | Self-balancing double-horse-head slide-block-rack driven oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533229A (en) * | 2018-07-07 | 2018-09-14 | 江苏明宇石油机械有限公司 | A kind of oil pumping stable well recovery machine |
-
2012
- 2012-03-08 CN CN2012200859153U patent/CN202483524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533229A (en) * | 2018-07-07 | 2018-09-14 | 江苏明宇石油机械有限公司 | A kind of oil pumping stable well recovery machine |
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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: 20121010 Termination date: 20160308 |