CN103556975A - Pulley block extended-range oil pumping unit - Google Patents
Pulley block extended-range oil pumping unit Download PDFInfo
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- CN103556975A CN103556975A CN201310569426.4A CN201310569426A CN103556975A CN 103556975 A CN103556975 A CN 103556975A CN 201310569426 A CN201310569426 A CN 201310569426A CN 103556975 A CN103556975 A CN 103556975A
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Abstract
The invention discloses a pulley block extended-range oil pumping unit which comprises a base, a driving mechanism, a driving wheel, a lifting rope, a guide wheel and a range extending device, wherein the range extending device comprises a first fixed pulley block, a second fixed pulley block, a guide rail and a traveling trolley arranged on the guide rail; the guide rail is fixed above the base; the first fixed pulley block is arranged at one end part of the guide rail; the second fixed pulley block is fixed on the traveling trolley; the driving mechanism is connected with the driving wheel fixed on the base; the driving wheel is connected with the traveling trolley and used for driving the traveling trolley to do linear reciprocating motion on the guide rail; the guide wheel is fixed above the guide rail; one end of the lifting rope is a fixed end; the other end of the lifting rope is wound around the first fixed pulley block and the second fixed pulley block and then is connected with a wellhead oil pumping device through the guide wheel. The pulley block extended-range oil pumping unit can quickly and smoothly start, realize smooth oil pumping without the need of forward and reverse rotation of a motor and reach the stroke more than 6 m.
Description
Technical field
The present invention relates to a kind of oil recovery machiner technical field, relate in particular to a kind of assembly pulley stroke-increasing pumping unit.
Background technology
In prior art, oil exploitation mainly adopts beam pumping unit that oil is extracted out from oil well.At present, conventional beam pumping unit is generally comprised of polished rod eye, horse head, walking beam, frame, connecting rod, reducer, crank, bascule, base, frame and motor etc., but due to horse head and oil pumper overall weight, cause that beam pumping unit exists difficulty in starting, power consumption is large, manufacturing cost is high, easily damage and the shortcoming such as maintenance cost height.
In order to address the above problem, following technology has been proposed in prior art:
As China Patent No. " 89201812.7 " discloses a kind of Wide-band type long-stroke, its open day is on 08 23rd, 1989, its technical scheme is that described oil pumper is by base, motor, reducer, cylinder, third wheel, flexible wide belt, frame, the Wide-band type long-stroke that balance basket forms, it is characterized in that, at frame top, rotation crown's nest is housed, between polished rod eye and balance basket, adopt multistrand rope group to connect, pin formula safety device is equipped with in the bottom of balance basket, flexible wide belt adopts wedge belt lacings with the connection of other parts, eccentric wheel stroke adjuster is housed on chain deceleration device.But the prior art that the wide-band beam-pumping unit of take is representative, in oil pumping process, it is mainly the rotating realization commutation (being that upstroke becomes down stroke or down stroke becomes upstroke) by motor, oil pumper four jig frequencies that complete per minute for example, motor is wanted rotating eight times in per minute so, per minutely all can cause eight large impacts to electrical network, thereby cause the electromagnetic pulse of power grid high-frequency, large frequency, cause the poor stability of oil pumper; And, if many oil pumpers are worked simultaneously, be not only difficult to power supply, also can cause considerable damage to electrical network.
And for example China Patent No. " 201320012011.2 " discloses the interactive single driven wheel of a kind of multifunctional dual-arm from variable-speed well pumping unit, its open day is on October 02nd, 2013, its technical scheme is describedly from variable-speed well pumping unit, to comprise boom assembly, lifting rope, wellhead oil pumping device, driving wheel, toggle, the first power arm and the second power arm, driving wheel is connected with gear, toggle is fixed on driving wheel, one end of the first power arm is flexibly connected with toggle, and the other end is provided with fixed pulley and lifting rope fixing hole; Second power arm one end is flexibly connected with the first power arm, and the other end is provided with fixed pulley, on the second power arm, is provided with basic point, and the second power arm is reciprocating along basic point; One end of lifting rope is fixedly connected with wellhead oil pumping device by the fixed pulley on boom assembly, and the other end is respectively by being fixed in the lifting rope fixing hole on the first power arm after the fixed pulley on the second power arm and the first power arm.But this patent in actual use, due to structure and load-bearing, the stroke of this oil pumper can only reach 3 meters, and stroke is less, can not effectively from oil well, extract more oil, exists the narrow shortcoming of the scope of application.
Summary of the invention
The object of the invention is to solve the problems referred to above that in prior art, oil pumper exists, a kind of assembly pulley stroke-increasing pumping unit is provided, the present invention can start oil pumper fast, reposefully, without motor positive and inverse, just can realize steady oil pumping, and makes more than the stroke of oil pumper can reach 6m.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of assembly pulley stroke-increasing pumping unit, it is characterized in that: comprise base, driving mechanism, driving wheel, lifting rope, directive wheel and extended-range device, described extended-range device comprises the first fixed pulley group, the second fixed pulley group, guide rail and be arranged on the walking dolly on guide rail, described guide rail is fixed on base top, described the first fixed pulley group is arranged on rail end, described the second fixed pulley group is fixed on walking dolly, described driving mechanism is connected with the driving wheel being fixed on base, described driving wheel is connected with walking dolly and drives walking dolly on guide rail, to do straight reciprocating motion, described directive wheel is fixedly installed on guide rail top, and one end of described lifting rope is fixed end, and the other end, then is connected with wellhead oil pumping device by directive wheel around backward through the first fixed pulley group and the second fixed pulley group.
Described directive wheel comprises the first directive wheel, the second directive wheel and the 3rd directive wheel, described the first directive wheel and the second directive wheel are fixedly installed on respectively the second top, fixed pulley group both sides, described the 3rd directive wheel is fixedly installed on boom assembly, described lifting rope, then is fixedly connected with wellhead oil pumping device with after fixed pulley on boom assembly by the first directive wheel, the second directive wheel, the 3rd directive wheel around backward successively through the first fixed pulley group and the second fixed pulley group.
Described the first directive wheel and the second directive wheel are tangent in plane of projection, the same side, and described the second directive wheel and the 3rd directive wheel are tangent in same level plane of projection.
In described the first fixed pulley group, the quantity of fixed pulley is 5, in described the second fixed pulley group, the quantity of fixed pulley is 4, fixed pulley in two fixed pulley groups is parallel and form a line mutually, the fixed end of described lifting rope is fixed on one of them fixed pulley at the first fixed pulley group two ends, all the other 4 fixed pulleys in the first fixed pulley group coordinate with 4 fixed pulleys in the second fixed pulley group lifting rope around to.
Described the first fixed pulley group is fixed on the end of guide rail, and in the first fixed pulley group, the height of fixed pulley is identical with the height of fixed pulley in the second fixed pulley group.
On described base, be fixedly installed two bracing frames, described driving wheel and one of them bracing frame are rotationally connected; Described guide rail is fixed on base top by another bracing frame and column.
Between described driving wheel and walking dolly, be also provided with two toggles and two pull bars, described two toggle symmetries are fixed on driving wheel both sides, described two pull bars are symmetricly set on driving wheel both sides, on described walking dolly, be provided with connecting axle, the two ends of described pull bar are flexibly connected with connecting axle and toggle respectively.
On described guide rail, be provided with protective cover, described guide rail, walking dolly, the first fixed pulley group and the second fixed pulley group are all positioned at protective cover.
Between described protective cover and column, be fixedly installed support bar.
Between described boom assembly and protective cover, be provided with balance rope, the two ends of balance rope are fixedly connected with protective cover with boom assembly respectively.
Described lifting rope comprise be positioned at the first fixed pulley group with in the second fixed pulley group around to lifting rope and the lifting rope that is connected being connected with wellhead oil pumping device, described around be at least two to lifting rope, two around to lifting rope all be connected lifting rope and be connected.
Described driving mechanism comprises motor, speed changer and the reducer being fixedly installed on base, speed changer is connected with motor by belt pulley, reducer is connected with speed changer by cross power transmission shaft, between cross power transmission shaft and speed changer, be provided with the brake lever of manual brake and control manual brake, in reducer, be provided with reduction gearing, reduction gearing and the engagement of driving wheel outer.
Employing the invention has the advantages that:
One, in the present invention, by by the first fixed pulley group, the second fixed pulley group, guide rail be arranged on the extended-range device that the walking dolly on guide rail forms, the circular motion of driving wheel is converted to the straight reciprocating motion of walking dolly, the first fixed pulley group and the second fixed pulley group recycle more than just can bring up to 6m by the stroke of oil pumper, not only be suitable for the oil pumping of grease hole, also suitable especially use mid-term or late period oil well oil pumping, be conducive to extract more oil from oil well.In addition, oil pumper coordinates oil pumping with driving wheel by driving mechanism, without motor positive and inverse, just can realize steady oil pumping, and driving wheel is stressed more even in oil pumping process, is not easy to damage, and is conducive to improve the long service life of driving wheel; And, in the upstroke and down stroke running of oil pumping, driving wheel movement velocity is consistent, can not produce pulse current, the startup of oil pumper is easier, and safety is higher, the electric weight consuming still less, not only saved electric energy, reduced cost of production, also overcome in prior art easily because " shaking electric " phenomenon causes the problem of device damage.Compare for the prior art of representative with China Patent No. " 201220703323.3 ", the present invention also has advantages of that mechanical movement is simple, easy to operate, accident rate is low and maintenance cost is little.
Two, in the present invention, by three directive wheels, not only reduce the frictional force of lifting rope and each parts, also made the load-bearing of lifting rope more even, be conducive to reduce the spoilage of lifting rope.
Three, in the present invention, described the first directive wheel and the second directive wheel are tangent in plane of projection, the same side, described the second directive wheel and the 3rd directive wheel are tangent in same level plane of projection, this structure has further improved the uniformity of lifting rope load-bearing, not only be conducive to improve the application life of lifting rope, can also improve the safety of oil pumping.
Four, in the present invention, in the first fixed pulley group, the quantity of fixed pulley is set to 5, and in the second fixed pulley group, the quantity of fixed pulley is set to 4, and this structure not only makes oil pumper can reach 6m with upstroke, also makes the volume of whole oil pumper smaller and more exquisite.
Five, in the present invention, described the first fixed pulley group is fixed on the end of guide rail, and in the first fixed pulley group, the height of fixed pulley is identical with the height of fixed pulley in the second fixed pulley group, and this structure is conducive to improve the stability of extended-range device in oil pumping process.
Six, in the present invention, be fixedly installed two bracing frames on described base, described driving wheel and one of them bracing frame are rotationally connected; Described guide rail is fixed on base top by another bracing frame and column, makes the stability of driving wheel and extended-range device better.
Seven, in the present invention, by the cooperation of two toggles, two pull bars and connecting axle, the circular motion of driving wheel stably can be converted into the straight reciprocating motion of walking dolly, make the flexibility of walking dolly in motion process higher, oil pumping process is more stable.
Eight, in the present invention; because oil pumper is to work in the wild, so the protective cover arranging on guide rail can play better protective effect to extended-range device, prevents that dust storm from entering extended-range device inside; can avoid dust storm to affect the stable operation of extended-range device, be conducive to the safety of oil pumper.
Nine, in the present invention, between described protective cover and column, be fixedly installed support bar, by support bar, be conducive to improve the steadiness of whole oil pumper.
Ten, in the present invention, be provided with balance rope between described boom assembly and protective cover, balance rope can play firm effect by column, prevents that column from tilting.
11, in the present invention, while reaching 6m due to the stroke of oil pumper, it bears a heavy burden 16 tons of left and right, needs to use very thick lifting rope guarantee steadily to pump, if but use very thick lifting rope, in fixed pulley group, exist again around to shortcomings such as inconveniences, therefore can adopt two diameters less around to lifting rope, not only can address the above problem, can also improve the safety of oil pumping, when one around after lifting rope fracture, another root lifting rope can also support oil pumping.
12, in the present invention, described driving mechanism comprises motor, speed changer and the reducer being fixedly installed on base, wherein speed changer is one-level speed changing structure, reducer is two stage speed change structure, by reducer, driving the structure of driving wheel is three-step gear shift structure, adopt three-step gear shift structure, the problems such as grid power blackout that cause because of so-called " shaking electric " phenomenon have effectively been overcome, can according to the variation of oil mass in oil well, adjust neatly at any time jig frequency and the stroke speed of oil pumper, make whole oil pumping process more steady, be conducive to significantly improve pumping efficiency; By manual brake and brake lever, can also prevent in time the generation of security incident, improved safety in utilization.
13, in the present invention, motor only need to start once, just can complete the up-down stroke motion of oil pumper, and starting current is little, can not produce pulse current and destroy electrical network; Mechanical movement after startup is steady, and the vibrations of generation are very little, and the reliability of oil pumper is higher.
14, in the present invention, oil pumper does not need auxiliary equipment, just can realize easily the change of jig frequency and jig frequency speed within one minute, can adopt suitable jig frequency oil pumping according to the actual conditions of oil well, and pumping efficiency is higher.
15, the present invention also can be used for short stroke oil pumping, and when pumping for short stroke, the quantity that only need to reduce fixed pulley group middle pulley just can realize, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention when down stroke.
Fig. 2 is the structural representation of the present invention when upstroke.
Fig. 3 is the structural representation of extended-range device in the present invention.
Fig. 4 is the structural representation of extended-range device after being connected with driving wheel in the present invention.
In figure, be labeled as: 1, base, 2, column, 3, boom assembly, 4, driving wheel, 5, lifting rope, 6, wellhead oil pumping device, 7, toggle, 8, pull bar, the 9, first fixed pulley group, 10, the second fixed pulley group, 11, guide rail, 12, walking dolly, 13, the first directive wheel, the 14, second directive wheel, the 15, the 3rd directive wheel, 16, bracing frame, 17, connecting axle, 18, support bar, 19, balance rope, 20, motor, 21, speed changer, 22, reducer, 23, belt pulley, 24, cross power transmission shaft, 25, manual brake, 26, brake lever.
The specific embodiment
A kind of assembly pulley stroke-increasing pumping unit, comprise base 1, driving mechanism, driving wheel 4, lifting rope 5, directive wheel and extended-range device, described extended-range device comprises the first fixed pulley group 9, the second fixed pulley group 10, guide rail 11 and be arranged on the walking dolly 12 on guide rail 11, described guide rail 11 is horizontally fixed on base 1 top, described the first fixed pulley group 9 is arranged on guide rail 11 ends, described the second fixed pulley group 10 is fixed on walking dolly 12, described driving mechanism is connected with the driving wheel 4 being fixed on base 1, described driving wheel 4 is connected with walking dolly 12 and drives walking dolly 12 to do straight reciprocating motion on guide rail 11, described directive wheel is fixedly installed on guide rail 11 tops, and one end of described lifting rope 5 is fixed end, and the other end, then is connected with wellhead oil pumping device 6 by directive wheel around backward through the first fixed pulley group 9 and the second fixed pulley group 10.
In the present embodiment, the other end of described lifting rope 5 through the first fixed pulley group 9 and the second fixed pulley group 10 around to referring to that lifting rope 5 often walks around after the fixed pulley in the first fixed pulley group 9, correspondence is walked around a corresponding fixed pulley in the second fixed pulley group 10 again, until the fixed pulley in two fixed pulley groups is all by around complete.
In the present embodiment, described guide rail 11 is to consist of two parallel channel-section steels, and described walking dolly 12 comprises four symmetrical wheels, and four wheels are positioned at channel-section steel, walking dolly 12 under the drive of driving wheel 4 and pull bar 8, the interior straight reciprocating motion of guide rail 11 that can formed by channel-section steel; Further, in order to strengthen the flexibility of walking dolly 12 operations, can be at the interior lubrication oil that arranges of guide rail 11.
The preferred embodiment of the present embodiment is, described directive wheel comprises the first directive wheel 13, the second directive wheel 14 and the 3rd directive wheel 15, described the first directive wheel 13 and the second directive wheel 14 are fixedly installed on the second fixed pulley group 10 tops, both sides by support respectively, described the 3rd directive wheel 15 is fixedly installed on boom assembly 3, and described the first directive wheel 13 and the second directive wheel 14 are tangent in plane of projection, the same side, described the second directive wheel 14 and the 3rd directive wheel 15 are tangent in same level plane of projection, described lifting rope 5 through the first fixed pulley group 9 and the second fixed pulley group 10 around backward, again successively by the first directive wheel 13, the second directive wheel 14, the 3rd directive wheel 15 is fixedly connected with wellhead oil pumping device 6 with after fixed pulley on boom assembly 3.
The another preferred embodiment of the present embodiment is, described the first fixed pulley group 9 is fixed on the end of guide rail 11 by support, and in the first fixed pulley group 9, the height of fixed pulley is identical with the height of fixed pulley in the second fixed pulley group 10, so that while guaranteeing dolly straight reciprocating motion, the fixed pulley of determining in cunning and the second fixed pulley group 10 in the first fixed pulley group 9 is stressed evenly; But be not limited to above-mentioned preferred embodiment, for example the first fixed pulley group 9 also can be fixed on guide rail 11 ends by the support being arranged on base 1.
The another preferred embodiment of the present embodiment is, is fixedly installed two bracing frames 16 on described base 1, and described driving wheel 4 is rotationally connected with one of them bracing frame 16; One end of described guide rail 11 is fixed on base 1 top by another bracing frame 16, the other end is fixed in column 2, to strengthen the whole steadiness of oil pumper, but be not limited to above-mentioned preferred embodiment, for example the two ends of guide rail 11 all can be fixed on base 1 top by bracing frame 16.
The another preferred embodiment of the present embodiment is, between described driving wheel 4 and walking dolly 12, be also provided with two toggles 7 and two pull bars 8, described two toggle 7 symmetries are fixed on driving wheel 4 both sides, described two pull bars 8 are symmetricly set on driving wheel 4 both sides, on described walking dolly 12, be provided with connecting axle 17, the two ends of described pull bar 8 are flexibly connected with connecting axle 17 and toggle 7 respectively.Driving wheel 4 circles under the driving of driving mechanism, and under the effect of toggle 7 and pull bar 8, drive connecting axle 17 to make walking dolly 12 do straight reciprocating motion on guide rail 11, wherein, the two ends of pull bar 8 are connected with toggle 7 bearings with connecting axle 17 respectively.
In the present embodiment, described the first fixed pulley group 9 and the second fixed pulley group 10 lay respectively at the both sides that are positioned at connecting axle 17, and preferably the first fixed pulley group 9 is positioned at and drives one end.
The another preferred embodiment of the present embodiment is, described driving mechanism comprises motor 20, speed changer 21 and the reducer 22 being fixedly installed on base 1, speed changer 21 is connected with motor 20 by belt pulley 23, reducer 22 is connected with speed changer 21 by cross power transmission shaft 24, between cross power transmission shaft 24 and speed changer 21, be provided with the brake lever 26 of manual brake 25 and control manual brake 25, in reducer 22, be provided with reduction gearing, reduction gearing and driving wheel 4 outer engagements.Wherein, speed changer 21 preferably adopts five gear speed-changing devices 21, and preferably on speed changer 21, is provided for regulating action bars and the clutch of speed changer 21 gears, so just can be as car gear shifting; do not shut down the rotating speed of real-time change driving wheel 4, be conducive to extract out more oil from oil well.
Embodiment 2
The present embodiment and above-described embodiment are basic identical, the main distinction is: in described the first fixed pulley group 9, the quantity of fixed pulley is preferably set to 5, in described the second fixed pulley group 10, the quantity of fixed pulley is preferably set to 4, fixed pulley in two fixed pulley groups is parallel and form a line mutually, the fixed end of described lifting rope 5 is fixed on one of them fixed pulley at the first fixed pulley group 9 two ends, all the other 4 fixed pulleys in the first fixed pulley group 9 coordinate with 4 fixed pulleys in the second fixed pulley group 10 lifting rope 5 around to, by above-mentioned preferred embodiment, the stroke of oil pumper makes more than can reach 6m.But be not limited to above-mentioned preferred embodiment, for example also can be by adjusting the distance of the first fixed pulley group 9 and the second fixed pulley group 10, the quantity of adjusting fixed pulley in the first fixed pulley group 9 and the second fixed pulley group 10, the length of adjusting toggle 7 or the stroke that above-mentioned several mode cooperatively interacts to change oil pumper.
In the present embodiment, in described the first fixed pulley group 9 and the second fixed pulley group 10, the quantity of fixed pulley can be identical, and when the quantity of the first fixed pulley group 9 and fixed pulley in the second fixed pulley group 10 is identical, the fixed end of lifting rope 5 can be fixed on guide rail 11.
Embodiment 3
The present embodiment and above-described embodiment are basic identical; the main distinction is: on described guide rail 11, be provided with protective cover; described protective cover is fixed on guide rail 11; described guide rail 11, walking dolly 12, the first fixed pulley group 9 and the second fixed pulley group 10 are all positioned at protective cover; so that prevent that the impurity such as dust storm from entering extended-range device, thereby affect the stable operation of extended-range device.Wherein, for the trouble-free operation of walking dolly 12, in the two sides of protective cover, offer pilot hole, the straight-line displacement length on guide rail 11 is identical with walking dolly 12 for the length of pilot hole, and the diameter of the width of pilot hole and connecting axle 17 is suitable; And for the ease of being connected of lifting rope 5 between fixed pulley group and directive wheel, on protective cover, also offer the guide hole for lifting rope 5.
The another preferred embodiment of the present embodiment is; between described protective cover and column 2, be fixedly installed support bar 18; further; between described boom assembly 3 and protective cover, be provided with balance rope 19; the two ends of balance rope 19 are fixedly connected with protective cover with boom assembly 3 respectively, so that strengthen the whole steadiness of strong oil pumper.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, the main distinction is: by described lifting rope 5 be divided into comprise be positioned at the first fixed pulley group 9 with in the second fixed pulley group 10 around to lifting rope 5 be connected with wellhead oil pumping device 6 be connected lifting rope 5, describedly around the quantity to lifting rope 5, be preferably two, two around to lifting rope 5 all be connected lifting rope 5 and be connected, but around the quantity to lifting rope 5, also can be many, concrete quantity is determined according to the stroke of oil pumper.
Operating principle of the present invention is: starter motor 20, motor 20 drives speed changer 21 runnings by belt pulley 23, speed changer 21 drives reducer 22 runnings by cross power transmission shaft 24 again, reduction gearing in reducer 22 drives driving wheel 4 to circle, driving wheel 4 drives walking dolly 12 to do straight reciprocating motion on guide rail 11 by two toggles 7 and two pull bars 8 again, when walking dolly 12 moves to column 2 directions, the second fixed pulley group 10 on walking dolly 12 drives lifting rope 5 to make wellhead oil pumping device 6 do upstroke motion, when walking dolly 12 moves from column 2 ends to the first fixed pulley group 9 directions, the second fixed pulley group 10 on walking dolly 12 drives lifting rope 5 to make wellhead oil pumping device 6 do down stroke motion, by driving wheel 4 circular motion stably, make oil pumper complete reposefully oil pumping work.
Obviously; those of ordinary skill in the art is according to grasped technological know-how and customary means; according to above said content, can also make the various ways that does not depart from fundamental technics thought of the present invention, these pro forma conversion are all within protection scope of the present invention.
Claims (10)
1. an assembly pulley stroke-increasing pumping unit, it is characterized in that: comprise base (1), driving mechanism, driving wheel (4), lifting rope (5), directive wheel and extended-range device, described extended-range device comprises the first fixed pulley group (9), the second fixed pulley group (10), guide rail (11) and be arranged on the walking dolly (12) on guide rail (11), described guide rail (11) is fixed on base (1) top, described the first fixed pulley group (9) is arranged on guide rail (11) end, described the second fixed pulley group (10) is fixed on walking dolly (12), described driving mechanism is connected with the driving wheel (4) being fixed on base (1), described driving wheel (4) is connected with walking dolly (12) and drives walking dolly (12) to do straight reciprocating motion on guide rail (11), described directive wheel is fixedly installed on guide rail (11) top, and one end of described lifting rope (5) is fixed end, and the other end, then is connected with wellhead oil pumping device (6) by directive wheel around backward through the first fixed pulley group (9) and the second fixed pulley group (10).
2. assembly pulley stroke-increasing pumping unit as claimed in claim 1, it is characterized in that: described directive wheel comprises the first directive wheel (13), the second directive wheel (14) and the 3rd directive wheel (15), described the first directive wheel (13) and the second directive wheel (14) are fixedly installed on respectively the second top, fixed pulley group (10) both sides, described the 3rd directive wheel (15) is fixedly installed on boom assembly (3), described lifting rope (5) through the first fixed pulley group (9) and the second fixed pulley group (10) around backward, again successively by the first directive wheel (13), the second directive wheel (14), the 3rd directive wheel (15) is fixedly connected with wellhead oil pumping device (6) with after fixed pulley on boom assembly (3).
3. assembly pulley stroke-increasing pumping unit as claimed in claim 2, it is characterized in that: described the first directive wheel (13) and the second directive wheel (14) are tangent in plane of projection, the same side, described the second directive wheel (14) and the 3rd directive wheel (15) are tangent in same level plane of projection.
4. assembly pulley stroke-increasing pumping unit as claimed in claim 1 or 2, it is characterized in that: in described the first fixed pulley group (9), the quantity of fixed pulley is that (5) are individual, in described the second fixed pulley group (10), the quantity of fixed pulley is that (4) are individual, fixed pulley in two fixed pulley groups is parallel and form a line mutually, the fixed end of described lifting rope (5) is fixed on one of them fixed pulley at the first fixed pulley group (9) two ends, all the other (4) individual fixed pulleys in the first fixed pulley group (9) coordinate with (4) individual fixed pulley in the second fixed pulley group (10) lifting rope (5) around to.
5. assembly pulley stroke-increasing pumping unit as claimed in claim 1, it is characterized in that: described the first fixed pulley group (9) is fixed on the end of guide rail (11), and in the first fixed pulley group (9), the height of fixed pulley is identical with the height of fixed pulley in the second fixed pulley group (10).
6. assembly pulley stroke-increasing pumping unit as claimed in claim 1, is characterized in that: on described base (1), be fixedly installed two bracing frames (16), described driving wheel (4) is rotationally connected with one of them bracing frame (16); Described guide rail (11) is fixed on base (1) top by another bracing frame (16) and column (2).
7. assembly pulley stroke-increasing pumping unit as claimed in claim 1, it is characterized in that: between described driving wheel (4) and walking dolly (12), be also provided with two toggles (7) and two pull bars (8), described two toggles (7) symmetry is fixed on driving wheel (4) both sides, described two pull bars (8) are symmetricly set on driving wheel (4) both sides, on described walking dolly (12), be provided with connecting axle (17), the two ends of described pull bar (8) are flexibly connected with connecting axle (17) and toggle (7) respectively.
8. the assembly pulley stroke-increasing pumping unit as described in claim 1,2,5,6 or 7; it is characterized in that: described guide rail is provided with protective cover on (11), described guide rail (11), walking dolly (12), the first fixed pulley group (9) and the second fixed pulley group (10) are all positioned at protective cover.
9. assembly pulley stroke-increasing pumping unit as claimed in claim 8, is characterized in that: between described protective cover and column (2), be fixedly installed support bar (18).
10. assembly pulley stroke-increasing pumping unit as claimed in claim 1, it is characterized in that: described lifting rope (5) comprise be positioned at the first fixed pulley group (9) with in the second fixed pulley group (10) around to lifting rope (5) be connected with wellhead oil pumping device (6) be connected lifting rope (5), described around being at least two to lifting rope (5), two around to lifting rope (5) all be connected lifting rope (5) and be connected.
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| CN201310569426.4A CN103556975B (en) | 2013-11-13 | 2013-11-13 | Assembly pulley stroke-increasing pumping unit |
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| CN201310569426.4A CN103556975B (en) | 2013-11-13 | 2013-11-13 | Assembly pulley stroke-increasing pumping unit |
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| CN103556975B CN103556975B (en) | 2016-04-20 |
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|---|---|---|---|---|
| CN2041725U (en) * | 1988-09-12 | 1989-07-26 | 大庆职工大学 | Dual-well traveling block and falls beam-pumping unit |
| CN2106221U (en) * | 1991-08-12 | 1992-06-03 | 马力行 | Self-walking oil pump |
| CN2727386Y (en) * | 2004-07-26 | 2005-09-21 | 山东理工大学 | Walking beam pumping unit with double acting wheels |
| CN101424178A (en) * | 2008-08-13 | 2009-05-06 | 任涛 | Crank block type pumping unit |
| CN102777153A (en) * | 2012-08-23 | 2012-11-14 | 李兆胜 | Pumping unit with wide swing angle |
| CN103061719A (en) * | 2013-01-10 | 2013-04-24 | 李兆胜 | Multifunctional double arm interaction double-drive-wheel self-speed-changing pumping unit |
| CN203603852U (en) * | 2013-11-13 | 2014-05-21 | 李兆胜 | Stroke-extending type pumping unit for pulley block |
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| Publication number | Publication date |
|---|---|
| CN103556975B (en) | 2016-04-20 |
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Effective date of registration: 20180720 Address after: 618000 Taiping Village, Xiaogan Town, Jingyang District, Deyang, Sichuan Patentee after: Deyang Heng Lian Machinery Manufacturing Co., Ltd. Address before: 618000 Deyang Jingyang second heavy machinery plant, Yi An District, 4 unit, 1 floor, 1, Sichuan. Patentee before: Li Zhaosheng |
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Granted publication date: 20160420 Termination date: 20181113 |