CN201915913U - Eccentric balancing lifting device - Google Patents
Eccentric balancing lifting device Download PDFInfo
- Publication number
- CN201915913U CN201915913U CN2011200109701U CN201120010970U CN201915913U CN 201915913 U CN201915913 U CN 201915913U CN 2011200109701 U CN2011200109701 U CN 2011200109701U CN 201120010970 U CN201120010970 U CN 201120010970U CN 201915913 U CN201915913 U CN 201915913U
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- Prior art keywords
- balance
- fixed
- seat
- balancing
- handle
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Abstract
The utility model relates to an eccentric balancing lifting device, which belongs to the field of oil production and consists of a mainframe base, a balancing system and a power transmission system and a bracket system, wherein the balancing system comprises a balancing block, a balancing handle and a balancing seat; the balancing block is fixed on the balancing handle; the balancing handle is fixed on the balancing seat; the balancing seat and a movable pulley seat are respectively fixed on the mainframe base; a movable pulley handle is matched with the movable pulley seat; the bracket system comprises an inclined strut assembly with an adjustable length; one end of the inclined strut assembly is connected with a well mouth and the other end of the inclined strut assembly is hinged with the mainframe base; and by the power transmission system,a chain extends from the position of a shaft pin and bypasses a movable pulley, a fixed pulley and a well mouth fixed pulley sequentially to be connected with a well mouth oil pumping rod. The device realizes that the torque of a reduction box and the power of a motor are alternately homogenized and are kept in a positive value range, so that the conversion of kinetic energy and mechanical energy is balance and the problems of negative values of the torque of the reduction box and the power of the motor, large fluctuation, low efficiency and the like of the existing oil pumping unit.
Description
Technical field
The utility model belongs to field of petroleum exploitation, is specifically related to a kind of eccentric balance lifting device.
Background technology
Lifting device is the oil gas field common equipment, at present, 75% artificial lift oil pumper is divided into conventional type prefix type beam pumping unit, out-phase type beam pumping unit, beam pumping unit and two horse head type beam pumping unit, overhead crank balance, direct balanced oil extractor etc. based on beam pumping unit.The oil pumper of these structural shapes mainly is to utilize crank-link mechanism to rotatablely move to become swinging up and down of walking beam, or drive sucker rod such as motor positive and inverse and oil well pump move back and forth, with the pumping of well liquid to ground.Its structure of the oil pumper of these types is firm, process matched therewith is complete, but its structure is huge, load fluctuation is big, on the stroke bottom dead centre all to have reduction box moment of torsion, power of motor be zero or negative value, exercise performance is poor, transmission link is many, system effectiveness is low and energy consumption is big.Main cause be load center of rotation and balance spin-block change the center on same axis, cause that bottom dead centre reduction box moment of torsion, power of motor exist negative value or zero on the stroke, cause the motor utilization rate low.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, a kind of eccentric balance lifting device is provided, has solved existing oil pumping unit reduction gearbox torque motor power and had problems such as negative value, fluctuation is big, motility is poor, transmission link is many, efficient is low, energy consumption is big, structure is huge.
Eccentric balance lifting device of the present utility model, form by main frame base, balance sysmte, the power conveying system mounting system of unifying, described balance sysmte comprises that balance weight, balance handle and balance seat constitute, and balance weight is fixed on the balance handle, and balance handle is fixed on the balance seat; Be fixed with balance seat and movable pulley seat respectively at the main frame base, the movable pulley handle matches with the movable pulley seat, one end of movable pulley axle is fixed on the movable pulley handle, the other end of axle is connected with short connecting rod by bearing, and the other end of short connecting rod links to each other with the pivot pin slide block by bearing, and the pivot pin slide block is fixed on an end relative with balance weight on the balance handle.Described mounting system comprises length-adjustable hound assembly, and the one end is connected with well head, the other end and main frame base are hinged.Be fixed with fixed pulley on the main frame base, described power-transmission system is that the fixed end of chain is fixed on the middle part of main frame base by the last-of-chain pivot pin, and chain extends from pivot pin to be walked around movable pulley, fixed pulley and well head fixed pulley successively and link to each other with the well head sucker rod.
As further improvement of the utility model, there is motor via reducer to provide power for balance handle.
As further improvement of the utility model, stagger in the horizontal direction 5o～30o angle of described movable pulley seat and balance seat installs.
Eccentric balance lifting device of the present utility model, utilizing load different with the balance weight center of rotation is eccentric stiffener, replace the rigidity energy delivery mechanisms with light-duty chain, flexible strand, power is realized the reciprocating motion of sucker rod by chain or flexible strand, assembly pulley: realize that reduction box torque motor power does not have negative value or null value, the little continuous oil pumping of fluctuating has that structure is smaller, in light weight, advantage of low energy consumption.
Eccentric balance lifting device of the present utility model is offset the load centre of gyration and the balance weight centre of gyration, makes load upstroke traffic coverage angle greater than 180o, and the interval angle of down stroke is less than the 180o angle.Realize that with oil well counterweight balance rear motor power maximum deceleration case moment of torsion, power of motor diminish, minimum deceleration case moment of torsion, power of motor become big, realized reduction box moment of torsion, power of motor alternation homogenising and remained on the occasion of scope, make and the conversion balance of kinetic energy and mechanical energy solved problems such as existing oil pumping unit reduction gearbox torque motor power negative value, fluctuation is big, efficient is low.
Description of drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 lateral view of the present utility model.
The specific embodiment
As illustrated in fig. 1 and 2, eccentric balance lifting device of the present utility model, form by main frame base, balance sysmte, the power conveying system mounting system of unifying, described balance sysmte comprises that balance weight 1, balance handle 2 and balance seat 3 constitute, balance weight 1 is fixed on the balance handle 2, and balance handle 2 is fixed on the balance seat 3; Be fixed with balance seat 3 and movable pulley seat 16 respectively at main frame base 4, main shaft on the movable pulley handle 6 moving pulley bases 16 moves in a circle, one end of movable pulley 5 axles is fixed on the movable pulley handle 6, the other end of axle is connected with short connecting rod 7 by bearing, and the other end of short connecting rod 7 links to each other with pivot pin slide block 8 by bearing, pivot pin slide block 8 is fixed on the balance handle 2 end relative with balance weight 1, movable pulley handle 6 supports movable pulley 5 clockwise cycle rotations, and drags chain 11 or gentle the rope done stretching motion.Described mounting system comprises length-adjustable hound assembly 9, and the one end is connected with well head, the other end and main frame base 4 are hinged, length and adjustable angle, and its effect one is to keep browpiece stable.The 2nd, make internal force balance between browpiece and the fuselage.On main frame base 4, be fixed with fixed pulley 10, described power-transmission system is that the fixed end of chain 11 is fixed on the middle part of main frame base 4 by last-of-chain pivot pin 12, and chain 11 extends from pivot pin 12 to be walked around movable pulley 5, fixed pulley 10 and well head fixed pulley 13 successively and link to each other with the well head sucker rod.
There is motor 14 to rotate around balance seat 3 by reductor 15 driven equilibrium handles 8 and balance weight 1.
Install at movable pulley seat 16 and the balance seat 3 5o～30o angle of staggering in the horizontal direction, form an eccentricity value, its accurate dimension is influenced by oil pumper structure and polished rod load, can be when the The field, test an oil pumping stroke cycle minimum current and maximum current than the minimum definite optimization result of variation tendency.
The movable pulley handle is provided with governor motion, and described governor motion comprises pivot pin slide block, adjustment hole and set bolt.The stroke change of oil pumper realizes by the radius of gyration of regulating movable pulley 5, specifically needs to regulate the extension elongation of movable pulley handle 6.Behind the stroke of change oil pumper, also need the position of pivot pin slide block 8 is adjusted.When adjusting the pivot pin slide block, six set bolts need be back-outed from adjustment hole fully, and then the pivot pin slide block is transferred to assigned address.
Claims (3)
1. eccentric balance lifting device, form by main frame base, balance sysmte, the power conveying system mounting system of unifying, it is characterized in that described balance sysmte comprises that balance weight (1), balance handle (2) and balance seat (3) constitute, balance weight (1) is fixed on the balance handle (2), and balance handle (2) is fixed on the balance seat (3); Be fixed with balance seat (3) and movable pulley seat (16) respectively at main frame base (4), movable pulley handle (6) matches with movable pulley seat (16), one end of movable pulley (5) axle is fixed on the movable pulley handle (6), the other end of axle is connected with short connecting rod (7) by bearing, the other end of short connecting rod (7) links to each other with pivot pin slide block (8) by bearing, and pivot pin slide block (8) is fixed on balance handle (2) and goes up an end relative with balance weight (1); Described mounting system comprises length-adjustable hound assembly (9), and the one end is connected with well head, the other end and main frame base (4) are hinged; On main frame base (4), be fixed with fixed pulley (10), described power-transmission system is that the fixed end of chain (11) is fixed on the middle part of main frame base (4) by last-of-chain pivot pin (12), and chain (11) extends from pivot pin (12) to be walked around movable pulley (5), fixed pulley (10) and well head fixed pulley (13) successively and link to each other with the well head sucker rod.
2. eccentric balance lifting device as claimed in claim 1, (14) provide power by reductor (15) for balance handle (2) to it is characterized in that motor is arranged.
3. eccentric balance lifting device as claimed in claim 1 or 2 is characterized in that described movable pulley seat (16) and balance seat (3) 5o～30o angle of staggering in the horizontal direction installs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200109701U CN201915913U (en) | 2011-01-14 | 2011-01-14 | Eccentric balancing lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200109701U CN201915913U (en) | 2011-01-14 | 2011-01-14 | Eccentric balancing lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915913U true CN201915913U (en) | 2011-08-03 |
Family
ID=44415715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200109701U Expired - Fee Related CN201915913U (en) | 2011-01-14 | 2011-01-14 | Eccentric balancing lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414823A (en) * | 2017-03-24 | 2017-12-01 | 深圳市拓灵者科技有限公司 | According to the method and device of torque adjustment balance |
-
2011
- 2011-01-14 CN CN2011200109701U patent/CN201915913U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414823A (en) * | 2017-03-24 | 2017-12-01 | 深圳市拓灵者科技有限公司 | According to the method and device of torque adjustment balance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20120114 |