CN101201000A - Flexible driving mechanism oil pumping device - Google Patents
Flexible driving mechanism oil pumping device Download PDFInfo
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- CN101201000A CN101201000A CNA2007101444527A CN200710144452A CN101201000A CN 101201000 A CN101201000 A CN 101201000A CN A2007101444527 A CNA2007101444527 A CN A2007101444527A CN 200710144452 A CN200710144452 A CN 200710144452A CN 101201000 A CN101201000 A CN 101201000A
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- reducer
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- oil pumping
- flexible
- cycloidal
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Abstract
The invention provides a flexible transmission mechanical oil pumping device, which mainly solves the problems in the prior beam-balanced pumping unit that the suspended load is high and the wear of levers and tubes is high. The invention is characterized in that the electric motor shaft is connected fixedly with the reducer cylinder (1), and the cycloidal pinwheel reducer (2) of a coupled electric motor is arranged at the rear end of the reducer cylinder (1), wherein a bracket (7) is arranged at one side of the cycloidal pinwheel reducer (2) of the coupled electric motor; and a pulley (8), a balancing wheel (9) and a front pulley (10) are arranged sequentially at the top part of the bracket (7). A steel wire (11) wraps sequentially a crank wheel (4), a rear pulley (8) and the front pulley (10), and is connected with a flexible oil pumping rod (12), a weighted lever and an oil pump via a wire hanger. The balancing wheel (9) is wrapped by a balancing rope (13) and the two ends of the balancing wheel (9) are respectively connected with a balancing box (14) and the wire hanger. The flexible transmission mechanical oil pumping device has the advantages of low suspended load and few clamps of oil pumping rods.
Description
Technical field:
The present invention relates to used lifting device, especially flexible driving mechanism oil pumping device in the oil recovery field, oil field.
Background technology:
At present along with the deep exploitation in oil field, the continuous development of technology, mechanical oil recovery equip ment from the beam pumping unit to the submersible electric pump, screw pump etc. is of a great variety, to adapt to the needs of different productive lives.Existing artificial lift oil rig mainly cooperates the rigidity sucker rod based on beam pumping unit, and the oil rig of this structural shape exists that one-time investment is more, the pay(useful) load rate is low, and power consumption is high, machine packet size and all very big and maintenance and repair expense height of deadweight.Because the rigidity rod collar is many, in oil pumping process,, cause rigidity rod parting accident frequently to take place with oil pipe friction frequency height, cause the system maintenance expense big.Beam pumping unit utilizes quadric chain to realize the oil pumping motion, and complete machine size and weight are influenced greatly by stroke, and complete machine size and weight and stroke size scale up.
Summary of the invention:
For solve existing beam pumping unit polished rod load height, rod collar is many, the rod tube wearing and tearing are big, device weak point in application life, complex structure, the problem that appearance and size is big, input cost is high, the invention provides a kind of flexible driving mechanism oil pumping device, this flexible driving mechanism oil pumping device has not only that polished rod load is low, rod collar is few, the rod tube wearing and tearing are little, device long service life characteristics; And simple in structure, appearance and size is little, input cost is few.
Technical scheme of the present invention is: this flexible driving mechanism oil pumping device comprises the reducer cylindrical shell, be fixed with direct-coupled electrical machinery cycloidal-pin wheel reducer on the reducer cylindrical shell, direct-coupled electrical machinery cycloidal-pin wheel reducer shaft links to each other with power transmission shaft by shaft coupling, power transmission shaft is fixed on the reducer cylindrical shell by bearing support, be connected with the crank of band crankwheel on the power transmission shaft, there is brake gear the motor shaft rear end of direct-coupled electrical machinery cycloidal-pin wheel reducer, crank one side has support, the support upper end has rear wheel successively, weighting distribution wheel and front wheel, be fixed with wire rope on the support, the wire rope other end is walked around crankwheel successively, link to each other with flexible rod by polished rod eye and anti-rotation joint behind rear wheel and the front wheel, flexible rod links to each other with oil well pump by anti-rotation joint and weighted lever, be wound with the counterweight rope on the weighting distribution wheel, counterweight rope two ends link to each other with ballast box and polished rod eye respectively.
The present invention has following beneficial effect: this flexible driving mechanism oil pumping device reduces the device polished rod load owing to take such scheme because of having adopted flexible rod, and rod collar is few, and the rod tube wearing and tearing are little, the device long service life.This device belongs to the oil rig that type of belt drive is taken out in the flexible transmission of direct balance, replaces positive drive with flexible transmission, utilizes fixed, movable pulley and wire rope that circular motion is become the needed vertical rectilinear motion of oil pumping, and has realized increasing at 4: 1 the effect of journey.And have that pay(useful) load rate height, low, the machine packet size of power consumption and deadweight are all little, the cancellation rod collar, eliminate advantages such as rod tube wear phenomenon and maintenance and repair expense are low, have promotional value.Simultaneously, adopted direct balance mode to improve energy-saving effect.This type also has been equipped with corresponding mechanism at the well workover in the oil rig work, inspection pump and test etc., and the power of utilization itself fulfils assignment, and has saved user's test, maintenance cost.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is Fig. 1 left views.
1-reducer cylindrical shell among the figure, 2-direct-coupled electrical machinery cycloidal-pin wheel reducer, 3-power transmission shaft, 4-crankwheel, 5-crank, 6-brake gear, 7-support, 8-rear wheel, 9-weighting distribution wheel, 10-front wheel, 11-wire rope, 12-flexible rod, 13-counterweight rope, 14-ballast box.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with shown in Figure 2, this flexible driving mechanism oil pumping device comprises reducer cylindrical shell 1, be fixed with direct-coupled electrical machinery cycloidal-pin wheel reducer 2 on the reducer cylindrical shell 1,2 of direct-coupled electrical machinery cycloidal-pin wheel reducers link to each other with power transmission shaft 3 by shaft coupling, power transmission shaft 3 is fixed on the reducer cylindrical shell 1 by bearing support, be connected with the crank 5 of band crankwheel 4 on the power transmission shaft 3, there is brake gear 6 the motor shaft rear end of direct-coupled electrical machinery cycloidal-pin wheel reducer 2, crank 5 one sides have support 7, support 7 upper ends have rear wheel 8 successively, weighting distribution wheel 9 and front wheel 10, be fixed with wire rope 11 on the support 7, wire rope 11 other ends are walked around crankwheel 4 successively, rear wheel 8 and front wheel 10 backs link to each other with flexible rod 12 by polished rod eye and anti-rotation joint, flexible rod 12 links to each other with oil well pump by anti-rotation joint and weighted lever, be wound with counterweight rope 14 on the weighting distribution wheel 9, counterweight rope 13 two ends link to each other with ballast box 14 and polished rod eye respectively.Because of adopting flexible rod 12, weighted lever and anti-rotation joint as the lifting roofbolt.Reduced lifting load comparing under the identical operating mode with rigid rod, the cancellation rod collar is eliminated the rod tube wear phenomenon; Between oil well pump and flexible rod 12, be furnished with weighted lever, guaranteed finishing of system's down stroke; Two ends add circulator at flexible rod about in the of 12, solved flexible rod and rotated the knotting problem at work, improve the application life of sucker rod.In addition, plate one deck special material, stop on the one hand that extraction liquid has improved the application life of sucker rod to the erosion of sucker rod in the well in flexible rod 12 outsides; Make the well head hermetically-sealed construction become simple on the other hand.Because of having adopted flexible driving mechanism, to have cancelled quadric chain, thereby made oil pumper supporting in this device simple in structure, appearance and size is little, cost is low.Because the change of the kind of drive, be that motor passes through cycloidal-pin wheel reducer drive crank up, change the horizontal movement of flexible piece into by pulley, change the vertical motion of sucker rod again into by pulley, wherein crankwheel 4 plays the effect of movable pulley, thereby realized increasing journey, promptly when crankwheel 4 centers when its center of rotation is R, stroke is 4R just.Influenced by stroke very little for the complete machine size like this, determined that the machine shape size can be very little.In addition, complete machine adopts direct balance mode, can balance the most of load in shaft bottom, reduces motor power (output), thereby reaches purpose of energy saving.This type also has been equipped with corresponding mechanism at the well workover in the oil pumper work, inspection pump and test etc., and the power of utilization itself is finished these operations, has saved user's test, maintenance cost.Because of this device has adopted big speed ratio cycloidal-pin wheel reducer and control system, thereby optimized this device running gear, not only realized low jig frequency, can also carry out stepless speed regulation, can also make simultaneously the used asynchronism(-nization) of up-down stroke of this device, adopt " going up fast slow down " to help the down stroke motion of flexible rod.
During actual the use, with these flexible driving mechanism oil pumping device Installation and Debugging good after.By direct-coupled electrical machinery cycloidal-pin wheel reducer 2, drive crank 5 revolutions by shaft coupling 2 and bearing support 2, through the horizontal rectilinear motion of crankwheel 4 realization wire rope 11, change the needed vertical rectilinear motion of oil pumping again into, realized oil pumping work.Crankwheel 4 is fixed on the crank 5, can move in a circle with crank 5 on the one hand, crankwheel 4 itself again can rotation on the one hand, has guaranteed the pure rolling of wire rope 11, improved the application life of wire rope 11, guaranteed that again the curvilinear motion of wire rope 11 has realized increasing the effect of journey.Wire rope 11 1 ends are fixed on the support 7, and the other end is walked around crankwheel 4, rear wheel 8, front wheel 10 and is connected with polished rod eye, and polished rod eye is connected with flexible rod 12 by special fit, drive the oil well pump motion.Energy-conservation in order to realize, direct balanced controls have been adopted, ballast box 14 is placed support 7 inner orbits, can move up and down along track, there is special device to be connected on the ballast box 14 with counterweight rope 13 1 ends, counterweight rope 13 other ends and polished rod eye link, and guarantee and wire rope 11 synchronized movement, participate in the oil pumping motion.Ballast box 14 weight can be finely tuned according to the shaft bottom load, and oil pumper is worked in the best condition.This flexible driving mechanism oil pumping device self is also had operation, inspection pump and test function.When needs are operated, crank 5 is put into minimum, come loose from crank 5, unloading crankwheel 4 installs to cylinder on the central axis of bearing support, power that can utilization itself is extracted flexible rod 12 out from the shaft bottom, take pump or shaft bottom liquid out of ground, operates accordingly.
With this flexible driving mechanism oil pumping device since adopted flexible rod 12 and flexible transmission after, compare with the walking beam machine and the rigidity sucker rod system of same model, has the structure of having simplified oil pumper, easily manufactured, system drops into little, working service is easy, and natural conditions do not have advantages such as specific (special) requirements to external world.When the big oil well of load uses, the plural equilibrium that can take direct balance and crank balance to form, energy-saving effect can be better.This flexible driving mechanism oil pumping device is used speed reducer with high transmission ratio, realized low jig frequency, improved the coefficient of fullness and the pump efficiency of oil well pump.
Claims (1)
1. flexible driving mechanism oil pumping device, comprise reducer cylindrical shell (1), it is characterized in that: be fixed with direct-coupled electrical machinery cycloidal-pin wheel reducer (2) on the reducer cylindrical shell (1), direct-coupled electrical machinery cycloidal-pin wheel reducer (2) axle links to each other with power transmission shaft (3) by shaft coupling, power transmission shaft (3) is fixed on the reducer cylindrical shell (1) by bearing support, be connected with the crank (5) of band crankwheel (4) on the power transmission shaft (3), there is brake gear (6) the motor shaft rear end of direct-coupled electrical machinery cycloidal-pin wheel reducer (2), crank (5) one sides have support (7), support (7) upper end has rear wheel (8) successively, weighting distribution wheel (9) and front wheel (10), be fixed with wire rope (11) on the support (7), wire rope (11) other end is walked around crankwheel (4) successively, rear wheel (8) and front wheel (10) back link to each other with flexible rod (12) by polished rod eye and anti-rotation joint, flexible rod (12) links to each other with oil well pump by anti-rotation joint and weighted lever, be wound with counterweight rope (13) on the weighting distribution wheel (9), counterweight rope (13) two ends link to each other with ballast box (14) and polished rod eye respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101444527A CN101201000A (en) | 2007-10-17 | 2007-10-17 | Flexible driving mechanism oil pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101444527A CN101201000A (en) | 2007-10-17 | 2007-10-17 | Flexible driving mechanism oil pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101201000A true CN101201000A (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101444527A Pending CN101201000A (en) | 2007-10-17 | 2007-10-17 | Flexible driving mechanism oil pumping device |
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| Country | Link |
|---|---|
| CN (1) | CN101201000A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484706A (en) * | 2015-12-31 | 2016-04-13 | 胜利油田新大管业科技发展有限责任公司 | Crank pulley steel wire rope reversing oil pumping unit and method |
| US10408200B2 (en) | 2015-03-19 | 2019-09-10 | Yanan Liu | Flexible beam vertical pumping unit |
| CN110725671A (en) * | 2019-12-03 | 2020-01-24 | 山西省平遥减速器有限责任公司 | Damage-proof pollution-free bailing type oil pumping machine |
| CN112228011A (en) * | 2020-11-02 | 2021-01-15 | 大庆石油管理局有限公司 | Non-beam pumping unit using speed reducer and motor as balance weight |
-
2007
- 2007-10-17 CN CNA2007101444527A patent/CN101201000A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10408200B2 (en) | 2015-03-19 | 2019-09-10 | Yanan Liu | Flexible beam vertical pumping unit |
| CN105484706A (en) * | 2015-12-31 | 2016-04-13 | 胜利油田新大管业科技发展有限责任公司 | Crank pulley steel wire rope reversing oil pumping unit and method |
| CN110725671A (en) * | 2019-12-03 | 2020-01-24 | 山西省平遥减速器有限责任公司 | Damage-proof pollution-free bailing type oil pumping machine |
| CN110725671B (en) * | 2019-12-03 | 2024-06-18 | 山西省平遥减速器有限责任公司 | Pollution-free bailing type pumping unit capable of preventing damage |
| CN112228011A (en) * | 2020-11-02 | 2021-01-15 | 大庆石油管理局有限公司 | Non-beam pumping unit using speed reducer and motor as balance weight |
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Open date: 20080618 |