CN203603853U - Pulley block stroke increasing type pumping unit with balance weight - Google Patents
Pulley block stroke increasing type pumping unit with balance weight Download PDFInfo
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- CN203603853U CN203603853U CN201320721259.6U CN201320721259U CN203603853U CN 203603853 U CN203603853 U CN 203603853U CN 201320721259 U CN201320721259 U CN 201320721259U CN 203603853 U CN203603853 U CN 203603853U
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Abstract
The utility model discloses a pulley block stroke increasing type pumping unit with balance weight. The pulley block stroke increasing type pumping unit comprises a guide rail, a walking trolley, a first fixed pulley set, a second fixed pulley set, a third fixed pulley set, a fourth fixed pulley set, a balance steel rope and a balance weight balancing block. The guide rail is fixed above the base, the first fixed pulley set and the second fixed pulley set are arranged at the two ends of the guide rail respectively, the third fixed pulley set and the fourth fixed pulley set are fixed on the walking trolley, and driving wheels are connected with the walking trolley. Lifting rope guiding wheels are fixedly arranged above the guide rail, one end of an oil pumping lifting rope is a fixed end, and the other end of the oil pumping lifting rope winds around the second fixed pulley set and the fourth fixed pulley set and then is connected with a well mouth oil pumping device through the lifting rope guiding wheels. One end of the balance steel rope is a fixed end, and the other end of the balance steel rope winds around the first fixed pulley set and the third fixed pulley set and then is connected with the balance weight balancing block. According to the pulley block stroke increasing type pumping unit, stable oil pumping can be achieved without forward and backward rotation of a motor, and the stroke of the pumping machine can reach at least 6 meters.
Description
Technical field
The utility model relates to a kind of oil recovery machiner technical field, relates in particular to a kind of assembly pulley stroke-increasing pumping unit with counterweight.
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 made up 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 is 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 of balance basket composition, 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 take wide-band beam-pumping unit as representative, in oil pumping process, mainly to realize commutation (being that upstroke becomes down stroke or down stroke becomes upstroke) by the rotating of motor, for example oil pumper four jig frequencies that complete per minute, 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 to comprise boom assembly, lifting rope, wellhead oil pumping device, driving wheel, toggle, the first power arm and the second power arm from variable-speed well pumping unit, 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 the prior art take above-mentioned patent document as representative, in actual use, still exist following defect: one, due to the reason of structure and load-bearing, the stroke of this oil pumper can only reach 3 meters, stroke is less, can not effectively from oil well, extract more oil, exist the narrow shortcoming of the scope of application.Two, this oil pumper, without counterweight balancing device, needs the motor of relatively high power just can complete normal oil pumping work, causes the energy consumption of motor large.
Utility model content
The purpose of this utility model is to solve the problems referred to above that in prior art, beam pumping unit exists, a kind of assembly pulley stroke-increasing pumping unit with counterweight is provided, the utility model adopts the motor of smaller power just can start rapidly oil pumper, just can realize steady oil pumping without motor positive and inverse, and make more than the stroke of oil pumper can reach 6m.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of assembly pulley stroke-increasing pumping unit with counterweight, it is characterized in that: comprise base, driving mechanism, driving wheel, oil pumping lifting rope, lifting rope directive wheel, guide rail, walking dolly, the first fixed pulley group, the second fixed pulley group, the 3rd fixed pulley group, the 4th fixed pulley group, balance steel cable and balance, described guide rail is fixed on base top, described walking dolly is arranged on guide rail, described the first fixed pulley group and the second fixed pulley group are separately positioned on the two ends of guide rail, described the 3rd fixed pulley group and the 4th fixed pulley group are 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 lifting rope directive wheel is fixedly installed on guide rail top, one end of described oil pumping lifting rope is fixed end, the other end through the second fixed pulley group and the 4th fixed pulley group around backward, be connected with wellhead oil pumping device by lifting rope directive wheel again, one end of described balance steel cable is fixed end, the other end through the first fixed pulley group with the 3rd fixed pulley group around being connected with balance backward.
Described lifting rope 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 all between the first fixed pulley group and the second fixed pulley group, described the 3rd directive wheel is fixedly installed on the first boom assembly, the fixed end of described oil pumping lifting rope is fixed in the second fixed pulley group, the other end, then is fixedly connected with wellhead oil pumping device with after fixed pulley on the first boom assembly by the first directive wheel, the second directive wheel, the 3rd directive wheel around backward successively through the second fixed pulley group and the 4th 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.
On described base, be also provided with steel cable directive wheel, the second column and the second boom assembly with fixed pulley, described steel cable directive wheel is fixed on guide rail top, the fixed end of described balance steel cable is fixed in the first fixed pulley group, the other end, then is connected with balance with after fixed pulley on the second boom assembly by steel cable directive wheel around backward successively through the first fixed pulley group and the 3rd fixed pulley group.
Described steel cable directive wheel comprises the 4th directive wheel, the 5th directive wheel, the 6th directive wheel and the 7th directive wheel, described the 4th directive wheel is fixedly installed between the first fixed pulley group and the second fixed pulley group, described the 7th directive wheel is fixed on the second boom assembly, described the 5th directive wheel and the 6th directive wheel are between the 4th directive wheel and the 7th directive wheel, and described balance steel cable is connected with balance with after fixed pulley on the second boom assembly by the 4th directive wheel, the 5th directive wheel, the 6th directive wheel, the 7th directive wheel successively.
Between described the first column and the second column, be provided with fixed bar, described the 5th directive wheel and the 6th directive wheel are fixed on fixed bar.
In described the first fixed pulley group, the second fixed pulley group, the 3rd fixed pulley group and the 4th fixed pulley group, the quantity of fixed pulley is 4.
On described guide rail, be provided with protective cover, described guide rail, walking dolly and fixed pulley group are all positioned at protective cover.
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 the first column, and described the first fixed pulley group and the second fixed pulley group are separately fixed at the two ends of guide rail,
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, are provided with connecting axle, and the two ends of described pull bar are flexibly connected with connecting axle and toggle respectively.
Between described the first boom assembly and the second boom assembly, be provided with balance rope, between described the second boom assembly and fixed bar, be provided with balance rope, between described fixed bar and base, be provided with balance rope.
Described oil pumping lifting rope comprise be positioned at the second fixed pulley group with in the 4th 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 be connected.
Described driving mechanism comprises the motor, speed changer and the reducer that are 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 engages with driving wheel outer.
Employing the utility model has the advantage of:
One, in the utility model, the cooperation forming by the second fixed pulley group, the 4th fixed pulley group, guide rail and walking dolly, the circular motion of driving wheel is converted to the straight reciprocating motion of walking dolly, the second fixed pulley group and the 4th 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.And the balance arranging can greatly reduce the power of motor, make oil pumper adopt the motor of smaller power just can steadily to pump, greatly reduce electrical source consumption, reduce cost of production; Wherein balance with by balance steel cable and the structure that the first fixed pulley group and the 3rd assembly pulley are connected, make its balance to wellhead oil pumping device better, be conducive to further reduce power of motor.In addition, oil pumper coordinates oil pumping with driving wheel by driving mechanism, just can realize steady oil pumping without motor positive and inverse, and driving wheel is stressed in oil pumping process to be evenly 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 save electric energy, reduced cost of production, also overcome in prior art easily because " shaking electric " phenomenon causes the problem of device damage.Compared with the prior art that is representative with China Patent No. " 201220703323.3 ", the utility model also has advantages of that mechanical movement is simple, easy to operate, accident rate is low and maintenance cost is little.
Two, in the utility model, by the guiding of the first directive wheel, the second directive wheel and the 3rd directive wheel, not only reduced the frictional force of oil pumping lifting rope and each parts, the load-bearing of the lifting rope that also makes to pump is more even, is conducive to reduce the spoilage of lifting rope.
Three, in the utility model, 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 oil pumping 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 utility model, by the cooperation of steel cable directive wheel, the second column and the second boom assembly, make the balance of balance in whole oil pumping process better.
Five, in the utility model, by the guiding of the 4th directive wheel, the 5th directive wheel, the 6th directive wheel and the 7th directive wheel, not only reduce the frictional force of balance steel cable and each parts, also helped the spoilage that reduces balance steel cable.
Six,, in the utility model, the fixed bar arranging between described the first column and the second column, is conducive to improve the steadiness of whole oil pumper.
Seven, in the utility model, in described the first fixed pulley group, the second fixed pulley group, the 3rd fixed pulley group and the 4th fixed pulley group, the quantity of fixed pulley is 4, this structure not only makes oil pumper can reach 6m with upstroke, also makes the volume of whole oil pumper smaller and more exquisite.
Eight, in the utility model; because oil pumper is to work in the wild, the protective cover therefore arranging on guide rail can play better protective effect to oil pumper, prevents that dust storm from entering oil pumper inside; can avoid dust storm to affect the stable operation of oil pumper, be conducive to the safety of oil pumper.
Nine, in the utility model, described driving wheel and one of them bracing frame are rotationally connected, and described guide rail is fixed on base top by another bracing frame and the first column, and this structure is conducive to improve the stability of whole oil pumper in oil pumping process; And the first fixed pulley group and the second fixed pulley group are separately fixed at the structure at guide rail two ends, make the more compact structure of whole oil pumper, be conducive to reduce the volume of oil pumper, thereby reduce the cost of production of oil pumper.
Ten, in the utility model, 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.
11, in the utility model, balance rope can play firm effect by column, prevents that column from tilting, and further improves the safety in utilization of oil pumper.
12, in the utility model, 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.
13, in the utility model, described driving mechanism comprises the motor, speed changer and the reducer that are fixedly installed on base, wherein speed changer is one-level speed changing structure, reducer is two stage speed change structure, driving the structure of driving wheel by reducer is three-step gear shift structure, adopt three-step gear shift structure, the problems such as the grid power blackout that causes because of so-called " shake electricity " phenomenon are effectively overcome, can adjust neatly at any time jig frequency and the stroke speed of oil pumper according to the variation of oil mass in oil well, 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, improve safety in utilization.
14, in the utility model, 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.
15, in the utility model, oil pumper does not need auxiliary equipment, just can realize easily the change of jig frequency and jig frequency speed within one minute, can be according to the actual conditions of oil well, adopt suitable jig frequency oil pumping, and pumping efficiency is higher.
16, the utility model also can be used for short stroke oil pumping, and in the time 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 utility model in the time of down stroke.
Fig. 2 is the structural representation of the utility model in the time of upstroke.
Fig. 3 is the structural representation after the utility model middle guide, walking dolly, oil pumping lifting rope and four fixed pulley groups connect.
Fig. 4 is the structural representation of walking dolly after being connected with driving wheel in the utility model.
In figure, be labeled as: 1, base, 2, the first column, 3, the first boom assembly, 4, driving wheel, 5, oil pumping lifting rope, 6, wellhead oil pumping device, 7, toggle, 8, pull bar, 9, the first fixed pulley group, 10, the second fixed pulley group, 11, the 3rd fixed pulley group, 12, the 4th fixed pulley group, 13, balance steel cable, 14, balance, 15, the second column, 16, the second boom assembly, 17, the 4th directive wheel, 18, the 5th directive wheel, 19, the 6th directive wheel, 20, the 7th directive wheel, 21, guide rail, 22, walking dolly, 23, the first directive wheel, 24, the second directive wheel, 25, the 3rd directive wheel, 26, bracing frame, 27, connecting axle, 28, fixed bar, 29, balance rope, 30, motor, 31, speed changer, 32, reducer, 33, belt pulley, 34, cross power transmission shaft, 35, manual brake, 36, brake lever.
The specific embodiment
A kind of assembly pulley stroke-increasing pumping unit with counterweight, : comprise base 1, driving mechanism, driving wheel 4, oil pumping lifting rope 5, lifting rope directive wheel, guide rail 21, walking dolly 22, the first fixed pulley group 9, the second fixed pulley group 10, the 3rd fixed pulley group 11, the 4th fixed pulley group 12, balance steel cable 13 and balance 14, described guide rail 21 is horizontally fixed on base 1 top, described walking dolly 22 is arranged on guide rail 21, described the first fixed pulley group 9 and the second fixed pulley group 10 are separately positioned on the two ends of guide rail 21, described the 3rd fixed pulley group 11 and the 4th fixed pulley group 12 are fixed on walking dolly 22, described driving mechanism is connected with the driving wheel 4 being fixed on base 1, described driving wheel 4 is connected with walking dolly 22 and drives walking dolly 22 to do straight reciprocating motion on guide rail 21, described lifting rope directive wheel is fixedly installed on guide rail 21 tops, one end of described oil pumping lifting rope 5 is fixed end, the other end through the second fixed pulley group 10 and the 4th fixed pulley group 12 around backward, be connected with wellhead oil pumping device 6 by lifting rope directive wheel again, one end of described balance steel cable 13 is fixed end, the other end through the first fixed pulley group 9 with the 3rd fixed pulley group 11 around being connected with balance 14 backward.
In the present embodiment, the other end of described lifting rope through the first fixed pulley group 9 and the second fixed pulley group 10 around to referring to that lifting rope 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 21 is to be made up of two parallel channel-section steels, and described walking dolly 22 comprises four symmetrical wheels, and four wheels are positioned at channel-section steel, walking dolly 22 under the drive of driving wheel 4 and pull bar 8, the interior straight reciprocating motion of guide rail 21 that can formed by channel-section steel; Further, the flexibility moving in order to strengthen walking dolly 22, can be at the interior lubrication oil that arranges of guide rail 21.
The preferred embodiment of the present embodiment is, described lifting rope directive wheel comprises the first directive wheel 23, the second directive wheel 24 and the 3rd directive wheel 25, described the first directive wheel 23 and the second directive wheel 24 are all above between the first fixed pulley group 9 and the second fixed pulley group 10, described the 3rd directive wheel 25 is fixedly installed on the first boom assembly 3, and described the first directive wheel 23 and the second directive wheel 24 are tangent in plane of projection, the same side, described the second directive wheel 24 and the 3rd directive wheel 25 are tangent in same level plane of projection, so that the load-bearing of raising oil pumping lifting rope 5 is more even; The fixed end of described oil pumping lifting rope 5 is fixed in the second fixed pulley group 10, the other end, then is fixedly connected with wellhead oil pumping device 6 with after fixed pulley on the first boom assembly 3 by the first directive wheel 23, the second directive wheel 24, the 3rd directive wheel 25 around backward successively through the second fixed pulley group 10 and the 4th fixed pulley group 12.
The another preferred embodiment of the present embodiment is, on described base 1, be also provided with steel cable directive wheel, the second column 15 and the second boom assembly 16 with fixed pulley for balance steel cable 13 is led, the second boom assembly 16 is fixed on the second column 15, the second column 15 and the first column 2 are separately positioned on the two ends of base 1, and the height of the second column 15 is lower than the height of the first column 2; Described steel cable directive wheel is fixed on guide rail 21 tops, the fixed end of described balance steel cable 13 is fixed in the first fixed pulley group 9, the other end, then is connected with balance 14 with after fixed pulley on the second boom assembly 16 by steel cable directive wheel around backward successively through the first fixed pulley group 9 and the 3rd fixed pulley group 11.
Further, the quantity of described steel cable directive wheel is four, be respectively the 4th directive wheel 17, the 5th directive wheel 18, the 6th directive wheel 19 and the 7th directive wheel 20, and preferably described the 4th directive wheel 17 is fixedly installed between the first fixed pulley group 9 and the second fixed pulley group 10, described the 7th directive wheel 20 is fixed on the second boom assembly 16, described the 5th directive wheel 18 and the 6th directive wheel 19 are between the 4th directive wheel 17 and the 7th directive wheel 20, described balance steel cable 13 is successively by the 4th directive wheel 17, the 5th directive wheel 18, the 6th directive wheel 19, the 7th directive wheel 20 is connected with balance 14 with after fixed pulley on the second boom assembly 16.
The another preferred embodiment of the present embodiment is, between described the first column 2 and the second column 15, fixed bar 28 is set, and described the 5th directive wheel 18 and the 6th directive wheel 19 are fixed on fixed bar 28; Between described the first boom assembly 3 and the second boom assembly 16, balance rope 29 is set, between described the second boom assembly 16 and fixed bar 28, balance rope 29 is set, between described fixed bar 28 and base 1, balance rope 29 is set, by fixed bar 28 and balance rope 29, so that improve the stability of whole oil pumper.
The another preferred embodiment of the present embodiment is, is fixedly installed two bracing frames 26 on described base 1, and described driving wheel 4 is rotationally connected with one of them bracing frame 26; One end of described guide rail 21 is fixed on another bracing frame 26, the other end is fixed in the first column 2, described the first fixed pulley group 9 and the second fixed pulley group 10 are separately fixed at the two ends of guide rail 21, to strengthen the overall steadiness of oil pumper, but be not limited to above-mentioned preferred embodiment, for example the two ends of guide rail 21 all can be fixed on base 1 top by bracing frame 26.
The another preferred embodiment of the present embodiment is, is also provided with two toggles 7 and two pull bars 8 between described driving wheel 4 and walking dolly 22, and 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 22, are provided with connecting axle 27, and the two ends of described pull bar 8 are flexibly connected with connecting axle 27 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 27 to make walking dolly 22 do straight reciprocating motion on guide rail 21, wherein, the two ends of pull bar 8 are connected with connecting axle 27 and toggle 7 bearings respectively.
In the present embodiment, described the first fixed pulley group 9 and the 3rd fixed pulley group 11 are positioned at a side of connecting axle 27, described the second fixed pulley group 10 and the 4th fixed pulley group 12 are positioned at the opposite side of connecting axle 27, and preferably the first fixed pulley group 9 is positioned at and drives one end, and the second fixed pulley group 10 is positioned at column one end.
The another preferred embodiment of the present embodiment is, described driving mechanism comprises the motor 30, speed changer 31 and the reducer 32 that are fixedly installed on base 1, speed changer 31 is connected with motor 30 by belt pulley 33, reducer 32 is connected with speed changer 31 by cross power transmission shaft 34, between cross power transmission shaft 34 and speed changer 31, be provided with the brake lever 36 of manual brake 35 and control manual brake 35, in reducer 32, be provided with reduction gearing, reduction gearing engages with driving wheel 4 outers.Wherein, speed changer 31 preferably adopts five gear speed-changing devices 31, and preferably on speed changer 31, is provided for regulating action bars and the clutch of speed changer 31 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 second fixed pulley group 10, the 3rd fixed pulley group 11 and the 4th fixed pulley group 12, the quantity of fixed pulley is all preferably set to 4, the first fixed pulley group 9 and the 3rd assembly pulley coordinate to balance steel cable 13 around to, the second fixed pulley group 10 and the 4th fixed pulley group 12 coordinate to oil pumping lifting rope 5 around to, by above-mentioned preferred embodiment, adopt the motor 30 of smaller power just can make oil pumper normally work, and make more than the stroke of oil pumper can reach 6m.But be not limited to above-mentioned preferred embodiment, for example, also can cooperatively interact to change by adjusting the distance of the second fixed pulley group 10 and the 4th fixed pulley group 12, the quantity of adjusting fixed pulley in the second fixed pulley group 10 and the 4th fixed pulley group 12, the length of adjusting toggle 7 or above-mentioned several mode the stroke of oil pumper.
The present embodiment and above-described embodiment are basic identical; the main distinction is: on described guide rail 21, be provided with protective cover; described protective cover is fixed on guide rail 21; described guide rail 21, walking dolly 22, the first fixed pulley group 9, the second fixed pulley group 10 the 3rd fixed pulley group 11 and the 4th fixed pulley group 12 are all positioned at protective cover; so that prevent that the impurity such as dust storm from entering in guide rail 21 and fixed pulley group, thereby affect the stable operation of oil pumper.Wherein, for the trouble-free operation of walking dolly 22, offer pilot hole in the two sides of protective cover, the straight-line displacement length on guide rail 21 is identical with walking dolly 22 for the length of pilot hole, and the diameter of the width of pilot hole and connecting axle 27 is suitable; And for the ease of being connected of lifting rope between fixed pulley group and directive wheel, on protective cover, also offer the guide hole for pump lifting rope 5 and balance steel cable 13.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, the main distinction is: by described oil pumping lifting rope 5 be divided into comprise be positioned at the second fixed pulley group 10 with in the 4th fixed pulley group 12 around to lifting rope and the lifting rope that is connected being connected with wellhead oil pumping device 6, described around being preferably two to the quantity of lifting rope, two around to lifting rope all be connected lifting rope be connected, but also can be many around the quantity to lifting rope, concrete quantity is determined according to the stroke of oil pumper.
Operating principle of the present utility model is: starter motor 30, motor 30 drives speed changer 31 to turn round by belt pulley 33, speed changer 31 drives reducer 32 to turn round by cross power transmission shaft 34 again, reduction gearing in reducer 32 drives driving wheel 4 to circle, driving wheel 4 drives walking dolly 22 to do straight reciprocating motion on guide rail 21 by two toggles 7 and two pull bars 8 again, in the time that walking dolly 22 moves to column direction, wellhead oil pumping device 6 is done down stroke motion under the drive of oil pumping lifting rope 5, now balance 14 is done upstroke motion under the effect of balance steel cable 13, in the time that walking dolly 22 moves from stud end to the first fixed pulley group 9 directions, wellhead oil pumping device 6 is done upstroke motion under the drive of oil pumping lifting rope 5, now balance 14 is done down stroke motion under the drive of balance steel cable 13, by driving wheel 4 circular motion stably, make oil pumper complete reposefully oil pumping work.Wherein, the counterweight through balance 14 to wellhead oil pumping device 6, adopts the motor 30 of smaller power just can complete reposefully oil pumping, greatly reduces power consumption.
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 the utility model fundamental technics thought, these pro forma conversion are all within protection domain of the present utility model.
Claims (9)
1. the assembly pulley stroke-increasing pumping unit with counterweight, it is characterized in that: comprise base (1), driving mechanism, driving wheel (4), oil pumping lifting rope (5), lifting rope directive wheel, guide rail (21), walking dolly (22), the first fixed pulley group (9), the second fixed pulley group (10), the 3rd fixed pulley group (11), the 4th fixed pulley group (12), balance steel cable (13) and balance (14), described guide rail (21) is fixed on base (1) top, described walking dolly (22) is arranged on guide rail (21), described the first fixed pulley group (9) and the second fixed pulley group (10) are separately positioned on the two ends of guide rail (21), described the 3rd fixed pulley group (11) and the 4th fixed pulley group (12) are fixed on walking dolly (22), described driving mechanism is connected with the driving wheel (4) being fixed on base (1), described driving wheel (4) is connected with walking dolly (22) and drives walking dolly (22) to do straight reciprocating motion on guide rail (21), described lifting rope directive wheel is fixedly installed on guide rail (21) top, one end of described oil pumping lifting rope (5) is fixed end, the other end through the second fixed pulley group (10) and the 4th fixed pulley group (12) around backward, be connected with wellhead oil pumping device (6) by lifting rope directive wheel again, one end of described balance steel cable (13) is fixed end, the other end through the first fixed pulley group (9) with the 3rd fixed pulley group (11) around being connected with balance (14) backward.
2. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 1, it is characterized in that: described lifting rope directive wheel comprises the first directive wheel (23), the second directive wheel (24) and the 3rd directive wheel (25), described the first directive wheel (23) and the second directive wheel (24) are all positioned between the first fixed pulley group (9) and the second fixed pulley group (10), described the 3rd directive wheel (25) is fixedly installed on the first boom assembly (3), the fixed end of described oil pumping lifting rope (5) is fixed in the second fixed pulley group (10), the other end through the second fixed pulley group (10) and the 4th fixed pulley group (12) around backward, again successively by the first directive wheel (23), the second directive wheel (24), the 3rd directive wheel (25) is fixedly connected with wellhead oil pumping device (6) with after fixed pulley on the first boom assembly (3).
3. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 2, it is characterized in that: described the first directive wheel (23) and the second directive wheel (24) are tangent in plane of projection, the same side, described the second directive wheel (24) and the 3rd directive wheel (25) are tangent in same level plane of projection.
4. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 1 or 2, it is characterized in that: described base is also provided with steel cable directive wheel on (1), the second column (15) and the second boom assembly (16) with fixed pulley, described steel cable directive wheel is fixed on guide rail (21) top, the fixed end of described balance steel cable (13) is fixed in the first fixed pulley group (9), the other end through the first fixed pulley group (9) and the 3rd fixed pulley group (11) around backward, be connected with balance (14) with after fixed pulley on the second boom assembly (16) by steel cable directive wheel successively again.
5. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 4, it is characterized in that: described steel cable directive wheel comprises the 4th directive wheel (17), the 5th directive wheel (18), the 6th directive wheel (19) and the 7th directive wheel (20), described the 4th directive wheel (17) is fixedly installed between the first fixed pulley group (9) and the second fixed pulley group (10), described the 7th directive wheel (20) is fixed on the second boom assembly (16), described the 5th directive wheel (18) and the 6th directive wheel (19) are positioned between the 4th directive wheel (17) and the 7th directive wheel (20), described balance steel cable (13) is successively by the 4th directive wheel (17), the 5th directive wheel (18), the 6th directive wheel (19), the 7th directive wheel (20) is connected with balance (14) with after fixed pulley on the second boom assembly (16).
6. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 5, it is characterized in that: between described the first column (2) and the second column (15), be provided with fixed bar (28), described the 5th directive wheel (18) and the 6th directive wheel (19) are fixed on fixed bar (28).
7. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 1, is characterized in that: in described the first fixed pulley group (9), the second fixed pulley group (10), the 3rd fixed pulley group (11) and the 4th fixed pulley group (12), the quantity of fixed pulley is 4.
8. a kind of assembly pulley stroke-increasing pumping unit with counterweight as described in claim 1,2 or 7, it is characterized in that: between described driving wheel (4) and walking dolly (22), 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, are provided with connecting axle (27) on described walking dolly (22), and the two ends of described pull bar (8) are flexibly connected with connecting axle (27) and toggle (7) respectively.
9. a kind of assembly pulley stroke-increasing pumping unit with counterweight as claimed in claim 1, it is characterized in that: described oil pumping lifting rope (5) comprise be positioned at the second fixed pulley group (10) with in the 4th fixed pulley group (12) around to lifting rope and the lifting rope that is connected being connected with wellhead oil pumping device (6), described around be at least two to lifting rope, two around to lifting rope all be connected lifting rope be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721259.6U CN203603853U (en) | 2013-11-13 | 2013-11-13 | Pulley block stroke increasing type pumping unit with balance weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721259.6U CN203603853U (en) | 2013-11-13 | 2013-11-13 | Pulley block stroke increasing type pumping unit with balance weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603853U true CN203603853U (en) | 2014-05-21 |
Family
ID=50716530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320721259.6U Withdrawn - After Issue CN203603853U (en) | 2013-11-13 | 2013-11-13 | Pulley block stroke increasing type pumping unit with balance weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556974A (en) * | 2013-11-13 | 2014-02-05 | 李兆胜 | Pulley block stroke-lengthened pumping unit with balance weight |
| CN113550719A (en) * | 2021-09-06 | 2021-10-26 | 史劢 | Balance type oil pumping machine |
-
2013
- 2013-11-13 CN CN201320721259.6U patent/CN203603853U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556974A (en) * | 2013-11-13 | 2014-02-05 | 李兆胜 | Pulley block stroke-lengthened pumping unit with balance weight |
| CN103556974B (en) * | 2013-11-13 | 2016-04-06 | 李兆胜 | With the assembly pulley stroke-increasing pumping unit of counterweight |
| CN113550719A (en) * | 2021-09-06 | 2021-10-26 | 史劢 | Balance type oil pumping machine |
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