CN102808602B - Automatic speed-changing wide-swing-angle oil pumping machine - Google Patents
Automatic speed-changing wide-swing-angle oil pumping machine Download PDFInfo
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- CN102808602B CN102808602B CN201210302187.1A CN201210302187A CN102808602B CN 102808602 B CN102808602 B CN 102808602B CN 201210302187 A CN201210302187 A CN 201210302187A CN 102808602 B CN102808602 B CN 102808602B
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- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 13
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
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- 239000003638 chemical reducing agent Substances 0.000 description 6
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- 238000005381 potential energy Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
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- 238000005065 mining Methods 0.000 description 2
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- 208000033999 Device damage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to the technical field of oil extraction machinery, in particular to an automatic speed-changing wide-swing-angle oil pumping machine. The automatic speed-changing wide-swing-angle oil pumping machine comprises an electric motor, a speed changing mechanism, a swing arm support, a swing arm arranged on the swing arm support, a support provided with a fixed pulley and a wellhead oil pumping device, wherein the speed changing mechanism is connected with a driving crankshaft wheel, the driving crankshaft wheel is meshed with a driven crankshaft wheel, the driving crankshaft wheel is connected with a connecting piece through a bearing, one end of the connecting piece is connected with the driven crankshaft wheel, the other end of the connecting piece is connected with the swing arm through a connecting rod, a sliding chute is arranged on the connecting piece of which one end is connected with the driven crankshaft wheel, and a bearing on the driven crankshaft wheel is sleeved in the sliding chute. The automatic speed-changing wide-swing-angle oil pumping machine disclosed by the invention has the advantages that when the two crankshaft wheels are in rotation, since the position of the bearing of a driven pulley is changed, the position of the connecting piece can be also correspondingly changed, a motion trail of the connecting rod is affected by the motion of the connecting piece, the speed of the wellhead oil pumping device in the up-stroke is higher than that in the down-stroke, the oil leakage problem existing in an oil pumping process is avoided, and the oil pumping efficiency is increased.
Description
Technical field
The present invention relates to oil recovery machiner technical field, is a kind of from the wide pivot angle oil pumper of speed change specifically.
Background technology
Traditional beam pumping unit is after motor once slows down, connect linkage, make again crank up campaign, thereby drive sucker rod to do upper and lower reciprocating motion, realize oil pumping function, now the upstroke of oil pumping is identical with the speed of down stroke, and stroking distance is from identical, and the time consuming is also identical.But in actual work, the oil rig that is arranged in underground passage there will be the situation of edge abrasion after use a period of time, oil rig after wearing and tearing and underground passage can produce gap, the time consistency that now if upstroke and down stroke consume, the oil of up taking out can be a large amount of from gap toward dirty, if guaranteeing, under the prerequisite of pumping efficiency, to shorten the upstroke time of oil rig, can effectively avoid the dirty problem of oil pumping.
Existing oil pumper also has pair improvement that the up-down stroke time regulates, if number of patent application is 200420084646.4, the day for announcing is 2005-9-14, name is called the Chinese utility model patent of " from speed changing energy-saving oil pumping machine ", concrete technical scheme is as follows: a kind of from speed changing energy-saving oil pumping machine, comprise reduction box and sucker rod in transmission mechanism, the power shaft of reduction box is connected with electric machine rotation by belt pulley; It is characterized in that the upper director circle eccentric gear (6) of installing of output shaft (5) in described reduction box (2), pitch curve gear intermeshing with it (7) is arranged on deceleration box; The girth of described pitch curve gear (7) is connected into and be take the curve that center of rotation is symmetrical sealing and form by some sections of curves, and its pitch curve equation R2 is in formula: A is center of rotation R2 and the R1 sum of pitch curve gear (7) and director circle eccentric gear (6); (6) rotary motion trace equation; D=A/r is relative center to center distance; ε=e/r is eccentricity; The girth of described pitch curve gear (7) equates with the circumference of described director circle eccentric gear (6); The crank-link mechanism (3) of the output shaft of described pitch curve gear (7) and oil pumper is rotationally connected.
Above-mentioned oil pumper is to realize fluid drive by being provided with intermeshing eccentric gear, realizes the effect that upstroke is slow, down stroke is fast.But the speed changing structure of this eccentric setting, weares and teares larger, in real work, because rotating speed is very fast, this speed changing structure is changed with regard to being prone to problem in use for about 1 year,
For another example number of patent application is 201120146696.0, the day for announcing is 2011-11-16, name is called the Chinese utility model patent of " pulley stroke-lengthening beam pumping unit ", its technical scheme is as follows: a kind of pulley stroke-lengthening beam pumping unit, is characterized in that comprising frame, walking beam, horse head, upper movable pulley, lower movable pulley, crossbeam connecting rod, load load-bearing band, sling device, motor, reducer and crank, between the power output shaft of motor and the power input shaft of reducer, transmission device is installed, on the power output shaft of reducer, crank is installed, the middle part of the walking beam that can swing up and down is hinged on the top of frame, the upper end of crossbeam connecting rod is hinged on the right part of walking beam, the lower end of crossbeam connecting rod is hinged on crank, left end at walking beam is installed with horse head, inner side, upper end at horse head is provided with movable pulley, inner side, middle part at horse head is provided with lower movable pulley, outside at horse head is provided with leading block from top to bottom, in frame below horse head, be fixed with fixator, one end of load load-bearing band is fixed on fixator, the other end of load load-bearing band is successively through lower movable pulley, after upper movable pulley and leading block, be fixed together with sling device, at crank or/and the right-hand member of walking beam is installed with counter weight device.
Comprehensive above patent, it adopts is that the reciprocating motion that traditional reducer and crank structure are realized horse head realizes oil pumping, but its reducer can only carry out bulk velocity adjustment to the rotating speed of crank, and crank structure is the problems such as potential safety hazard that exist in electric energy, rotary course with regard to not only there will be potential energy converting and energy in real work, and existing speed changing structure is all to adopt gearbox or eccentric structure, must refuel to increase lubricity to main shaft in the running, but after refueling, gearbox is just prone to the phenomenon of leakage of oil, can bring potential safety hazard.
Summary of the invention
In order to overcome the wear and tear problem of larger and easy leakage of oil of upstroke overlong time that existing oil pumper exists and existing speed changing structure in real work, now a kind of speed changing structure abrasion resistance properties of special proposition by force, do not need to add lubrication oil from the wide pivot angle oil pumper of speed change.
For realizing above-mentioned technique effect, technical scheme of the present invention is as follows:
A kind of from the wide pivot angle oil pumper of speed change, comprise motor, gear, rocking arm pillar, be arranged on the rocking arm on rocking arm pillar, be provided with support and the wellhead oil pumping device of fixed pulley, described motor is connected with gear, the lifting rope that rocking arm end arranges connects wellhead oil pumping device by fixed pulley on support, it is characterized in that: described gear is connected with initiatively crank wheel, initiatively crank wheel is engaged with driven crank wheel, initiatively on crank wheel, by bearing, be connected with connector, connector one end is connected with driven crank wheel, the connector other end is connected with rocking arm by connecting rod, described and driven crank wheel is connected on the connector of one end and is provided with sliding tray, bearing holder (housing, cover) on driven crank wheel is connected in sliding tray.
Connector one end that described and driven crank wheel is connected is provided with arc bending, the connector other end with connecting rod for being fixedly connected with.
The center of circle of described arc bending part place circle overlaps with the center of circle of driven crank wheel.
Described active crank wheel and driven crank wheel are respectively two, each active crank wheel is symmetrical arranged with respect to gear, each driven crank wheel is symmetrical arranged with respect to gear, two initiatively connect by fixed mount between crank wheel, between two driven crank wheels, also by fixed mount, connect, corresponding connector and connecting rod are also respectively provided with two, and two connecting rods are all connected with rocking arm.
Described gear comprises bracing frame, the gearbox being connected with bracing frame, drives the double reduction gear box that initiatively crank wheel rotates, described gearbox is connected by cross connecting axle with double reduction gear box, described double reduction gear box meshes by gear and the outer of active crank wheel, and described motor is connected with gearbox by belt pulley.
Described gearbox be slewing range at 1:1---5 grades of gearboxes of 7:1, described double reduction gear box rotating ratio is 7:1, in described gearbox, be provided with presser type clutch, between gearbox and cross connecting axle, be provided with brake gear, described reduction gearing is 10:1 with the rotating ratio of active crank wheel.
Described rocking arm and rocking arm pillar are flexibly connected by rotating cylinder, and rocking arm end is for being obliquely installed, and are aligned in sequence with a plurality of for the fixing connecting hole of lifting rope along inclined plane; Described connecting rod is connected with rocking arm by bearing.
Described fixed mount, support and rocking arm pillar are all arranged on base, on described rocking arm pillar and support, be respectively arranged with the fixed bar that supports fixation, the described fixed bar other end is all fixed with base, in support upper end, be provided with crossbeam, on crossbeam, be provided with fixed pulley, crossbeam one end is also provided with balance rope, and the balance rope other end is connected with base.
The invention has the advantages that:
1, between active crank wheel and driven crank wheel, be provided with connector, because connector one end is socketed on driven crank wheel, the connector other end is fixedly connected with connecting rod, so in the process of rotating at two crank wheels, because the position of bearings of follow-up pulley changes, the position of connector also can correspondingly change, the movement locus of connecting rod is affected by the motion of connector, thereby caused connecting rod slower than the speed moving downward in the distance moving upward, this has just caused wellhead oil pumping device faster than the speed of down stroke in upstroke, upstroke speed has just been avoided the Leakage existing in oil pumping process sooner, improved the efficiency of oil pumping.
2, because connector one end is provided with sliding tray, so the bearing on driven crank wheel can be when rotating, utilize the position relationship of itself and sliding tray to affect the movement locus of connector, by simple structure, changed the speed of service of the upper and lower stroke of wellhead oil pumping device, avoided use gearbox and added lubrication oil.
3, the present invention is provided with initiatively crank wheel and driven crank wheel, and driven crank wheel is except playing the effect of movement locus of control link, because it is to be meshed with active crank wheel, so can also play the initiatively effect of crank wheel of balance.Because initiatively crank wheel is in rotation process, the connecting rod connecting thereon can move reciprocatingly, if there is no other counterweight balance structures, initiatively crank wheel is easy to produce shakiness and run-off the straight.
4, connector tail end is provided with arc bending part, arc bending part can make driven crank wheel when rotating one week, bearing on it is due to the cause of its movement locus, can in chute, slide smoothly, and can by chute, do not blocked and stop operating, guaranteed that two kinds of crank wheels turn round smoothly.
5, initiatively crank wheel and driven crank wheel are respectively provided with two, and be symmetrical arranged between two, make like this crank wheel balance more in the process of motion, two active crank wheels are connected with rocking arm by two connecting rods respectively, reduce torsional forces fluctuation, avoided the problem of the crank wheel shakiness that single crank wheel causes in motion process.
6, the gearbox of setting of the present invention is one-level speed changing structure, reduction box is two stage speed change structure, by the reduction gearing driving crank wheel in reduction box, being rotated is three-step gear shift structure, adopt three-step gear shift structure, overcome the power output shaft Leakage on reducer in beam pumping unit, also can according to on-site actual situations, adjust easily at any time the jig frequency of oil pumper, the application life of having improved equipment, adopt reduction gearing driving crank wheel to rotate, make the impact force producing in oil pumping process all concentrate in reduction gearing, guaranteed that crank wheel is stressed even in oil pumping process, be not easy to damage, long service life, and upstroke and down stroke in oil pumping are in service, potential energy is the same, can not produce pulse current, overcome the device damage problem causing because of " shaking electric " phenomenon, and only need less torsional forces just can rotate oil pumping process by driving crank wheel, therefore use the motor of smaller power just can realize, when the diameter of the reduction gearing diameter that is crank wheel 1/10 time, torsional forces at least can strengthen more than 10 times, compare with beam pumping unit, the electric weight consuming is few, it is large that torsional forces strengthens figure place, not only save electric energy, also improved oil pumping amount, reduced cost of production, and two crank wheels are set, be flexibly connected respectively by two connecting rods with rocking arm, guaranteed rocking arm stress balance, reduced torsional forces fluctuation, safety is higher, because the upper end of connecting rod is flexibly connected with rocking arm, can regulate stroke by changing the link position of connecting rod and rocking arm, simple in structure, easy to operate.
7, in the present invention, described gearbox is that slewing range is at 5 gear gearboxes of 1:1-7:1, on gearbox, be provided with action bars and the clutch of controlling gear, action bars and clutch engagement regulate the rotating speed of gearbox, adopt slewing range at 5 gear gearboxes of 1:1-7:1, when 1 gear, the power input shaft of gearbox turns 7 circles, its power input shaft turns 1 circle, when 5 gear, the power input shaft of motor turns 1 circle, its power output shaft turns 1 circle, this is one-level speed changing structure, between 1 gear to 5 gear, use action bars to coordinate speed change with clutch, can be convenient as car gear shifting in prior art, adjust simply the jig frequency of rotating speed and the change oil pumper of crank wheel, compare with beam pumping unit, reduced plant machinery fault, improved the application life of equipment, can also improve the oil pump capacity of each extraction.The rotating ratio of described gearbox and reduction box is 7:1, this structure is two stage speed change structure, the power input shaft that is reduction box turns 7 circles, its power output shaft turns 1 circle, this set-up mode is further adjusted crank wheel rotating speed, oil pumper is moved in oil pumping process more stable, each oil mass extracting is more, has significantly improved production efficiency.The rotating ratio of described reduction gearing and crank wheel is 10:1, this structure is three-step gear shift structure, be reduction gearing running 10 circles in reduction box, crank wheel running 1 circle, this set-up mode concentrates in reduction gearing the stress point of oil pumper, and on crank wheel, each point is stressed evenly, and only needs the motor of smaller power just can make the running of reduction gearing driving crank wheel, the electric weight not only consuming is few, and torsional forces also can strengthen more than 10 times.
8, the end of rocking arm is bending structure, and when rocking arm is when doing circular arc reciprocating motion, its bending structure can effectively shorten the radius of circular arc, the space taking while reducing rocking arm motion.
9, the present invention does not use traditional horse head and crank structure, but adopted crank wheel, crank wheel structure is in rotation process, having avoided the potential energy converting and energy in the past occurring is electric energy, and then impacting the problem that electrical network produces electrical network distortion, this is that the variation of height does not occur its overall positions because wheeled construction is when rotate, so the potential energy of each point totally in equilibrium state, has been avoided the situation that potential energy converting and energy is electric energy.
10, due to double reduction gear box be by gear with mesh with the outer of active crank wheel, can realize and drive the object that initiatively crank wheel rotates with less torsion, by being set, change-speed gearing is listed as with the radius ratio of active crank wheel, can again realize the deceleration effect of 10:1 for the third time, and owing to being that gear driven initiatively directly rotates crank wheel outer, so do not use main shaft driving structure yet, avoided using the trouble of lubrication oil.
11, fixed pulley can change the direction of motion of lifting rope, and the direction of motion of lifting rope is changed to 180 degree left and right, has played good guide.
12, the present invention is not only applicable to the mining operations of general oil, is also applicable to the mining operations of centering low viscosity and high water-content crude oil.
13, overall weight of the present invention is approximately 9 tons, lightweight, and nearly more than 20 ton of the beam pumping unit overall weight of similar stroke compared with the beam pumping unit of similar stroke, and power saving is more than 50%, 2-4 times of saving steels.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the distance speed schematic diagram of wellhead oil pumping device.
Motor 1, rocking arm pillar 2, rocking arm 3, fixed pulley 4, support 5, wellhead oil pumping device 6, lifting rope 7, initiatively crank wheel 8, driven crank wheel 9, bearing 10, connector 11, sliding tray 12, arc bending 13, connecting rod 14, bracing frame 15, gearbox 16, reduction gear box 17, cross connecting axle 18, gear 19, rotating cylinder 20, connecting hole 21, base 22, fixed bar 23, crossbeam 24, balance rope 25.
The specific embodiment
Referring to Fig. 1, from the wide pivot angle oil pumper of speed change, comprise motor 1, gear, rocking arm pillar 2, be arranged on the rocking arm 3 on rocking arm pillar 2, be provided with support 5 and the wellhead oil pumping device 6 of fixed pulley 4, described motor 1 is connected with gear, the lifting rope 7 that rocking arm 3 ends arrange connects wellhead oil pumping device 6 by fixed pulley on support 54, the wellhead oil pumping device 6 here can be oil well pump or other existing pumping units, described gear is connected with initiatively crank wheel 8, initiatively crank wheel 8 is engaged with driven crank wheel 9, initiatively on crank wheel 8, by bearing 10, be connected with connector 11, connector 11 one end are connected with driven crank wheel 9, connector 11 other ends are connected with rocking arm 3 by connecting rod 14, described and driven crank wheel 9 is connected on the connector 11 of one end and is provided with sliding tray 12, bearing 10 on driven crank wheel 9 is socketed in sliding tray 12.Connector 11 is the sub-bearing of bipyramid with active crank wheel 8 and the 9 connecting places uses of driven crank wheel.
Connector 11 one end that are connected with driven crank wheel 9 are provided with arc bending 13, the center of circle that arc bends 13 part place circles overlaps with the center of circle of driven crank wheel 9, like this when driven crank wheel 9 is when rotating, can at connector 11 arcs, bend smoothly the interior slip of sliding tray 12 of 13 parts, the problem that causes driven crank wheel 9 to stop operating because the sub-bearing of bipyramid is blocked by sliding tray 12 can not occur.Connector 11 other ends with connecting rod 14 for being fixedly connected with.Being fixedly connected with can be welding or other existing known modes that are fixedly connected with.
Initiatively crank wheel 8 and driven crank wheel 9 are respectively two, each active crank wheel 8 is symmetrical arranged with respect to gear, each driven crank wheel 9 is symmetrical arranged with respect to gear, in actual production, quantity for active crank wheel 8 and driven crank wheel 9 is not specifically limited, can arrange three or a plurality of, but the quantity of active crank wheel 8 and driven crank wheel 9 must be consistent.Two initiatively connect by fixed mount between crank wheel 8, between two driven crank wheels 9, also by fixed mount, connect, and corresponding connector 11 and connecting rod 14 are also respectively provided with two, and two connecting rods 14 are all connected with rocking arm 3.The concrete structure of the fixed mount here comprises: the cross bar that the central axis of the active crank wheel 8 being arranged side by side is connected, the cross bar that the center of the driven crank wheel 9 being arranged side by side is connected and be connected with cross bar, the support body that plays fixation that is frame-like, whole fixed mount can be placed on base 22, also can directly be positioned over ground.
Described gear comprises bracing frame 15, the gearbox 16 being connected with bracing frame 15, drives the double reduction gear box 17 that initiatively crank wheel 8 rotates, described gearbox 16 is connected by cross connecting axle 18 with double reduction gear box 17, described double reduction gear box 17 meshes by gear 19 and the outer of active crank wheel 8, and described motor 1 is connected with gearbox 16 by belt pulley.
Gearbox 16 is that slewing range is at 5 gear gearboxes 16 of 1:1-7:1, on gearbox 16, be provided with action bars and the clutch of controlling gear, action bars and clutch engagement regulate the rotating speed of gearbox 16, when 1 gear, the power input shaft of gearbox 16 rotates 7 circles, its power input shaft rotates 1 circle, when 5 gear, the power input shaft of motor 1 rotates 1 circle, its power output shaft rotates 1 circle, this structure is one-level speed changing structure, can adjust simply and easily jig frequency and the stroke speed of oil pumper, thereby change the jig frequency of oil pumper and each oil pumping amount, action bars can adopt the action bars mode of controlling gear in prior art, the preferred presser type clutch of clutch, but be not limited to above-mentioned set-up mode.
Gearbox 16 is 7:1 with the rotating ratio of reduction box, the power input shaft that is reduction box rotates 7 circles, its power output shaft rotates 1 circle, therefore, when gearbox 16 is 1 gear, gearbox 16 rotates 49 circles, reduction gearing 19 in reduction box is rotated 1 circle, when gearbox 16 is 5 gear, gearbox 16 rotates 7 circles, reduction gearing 19 in reduction box is rotated 1 circle, this structure is two stage speed change structure, match with primary speed-down structure, further adjust jig frequency and the stroke speed of oil pumper, stability and the reliability of oil pumper have been guaranteed, above-mentioned set-up mode is preferred, but be not limited to above-mentioned set-up mode, for example reduction box also can adopt the set-up mode of prior art reduction box.
Reduction gearing 19 is 10:1 with the rotating ratio of crank wheel, the diameter that is reduction gearing 19 is 1/10 of crank wheel diameter, when reduction gearing 19 is rotated 10 circle, crank wheel just rotates 1 circle, therefore,, when gearbox 16 is 1 gear, gearbox 16 rotates 490 circles, reduction gearing 19 in reduction box is rotated 10 circles, and crank wheel just rotates 1 circle; When gearbox 16 is 5 gear, gearbox 16 rotates 70 circles, and the reduction gearing 19 in reduction box is rotated 10 circles, and crank wheel just rotates 1 circle; When crank wheel rotates a circle, just complete oil pumping process one time, this structure is three-step gear shift structure, make the torsional forces of oil pumper strengthen 10 times, also can change the diameter ratio of reduction gearing 19 and crank wheel, the torsional forces of oil pumper is increased more than 10 times, above-mentioned set-up mode is preferred, but be not limited to above-mentioned set-up mode, for example reduction gearing 19 also can arrange according to oil field actual conditions with the rotating ratio of crank wheel.
In gearbox 16, be provided with presser type clutch, between gearbox 16 and cross connecting axle 18, be provided with brake gear.
Rocking arm 3 and rocking arm pillar 2 are flexibly connected by rotating cylinder 20; rocking arm 3 is arranged on rotating cylinder 20; rotating cylinder 20 can be with respect to rocking arm pillar 2 rotation; rocking arm 3 ends are for being obliquely installed, and the object being obliquely installed is to shorten rocking arm 3 radius when moving reciprocatingly, conserve space; along inclined plane, be aligned in sequence with a plurality of for the fixing connecting hole 21 of lifting rope 7; in the time need to adjusting the distance of upper and lower stroke, lifting rope 7 can be changed to different connecting holes 21 and connect, realization increasing journey.Described connecting rod 14 is connected with rocking arm 3 by bearing 10.Above-mentioned bearing 10 can be arranged on the optional position of rocking arm 3, according to demand, when needs increase journey when more, the junction of connecting rod 14 and rocking arm 3 can be moved toward rocking arm pillar 2 directions, when the increasing journey of needs is less, can be by the junction of connecting rod 14 and rocking arm 3 toward moving than end direction.
Fixed mount, support 5 and rocking arm pillar 2 are all arranged on base 22, also can be directly arranged on ground; on rocking arm pillar 2 and support 5, be respectively arranged with the fixed bar 23 that supports fixation; described fixed bar 23 other ends are all fixing with base 22, and fixed bar 23 other ends in like manner also can directly arrange on ground.Fixed bar 23 is mainly to play to prevent that fixed mount and support 5 from producing and rocking at motion process.
In support 5 upper ends, be provided with crossbeam 24, be provided with fixed pulley 4 on crossbeam 24, crossbeam 24 one end are also provided with balance rope 25, and balance rope 25 other ends are connected with base 22.The quantity of fixed pulley 4 is at least one, according to actual conditions, two or more can be set, and its main purpose is the direction of motion that changes lifting rope 7, can realize the upper and lower motion of wellhead oil pumping device 6 through the lifting rope 7 of fixed pulley 4.The position of fixed pulley 4 on crossbeam 24 be restriction not, as long as can meet job requirement.
Operating principle of the present invention is: motor 1 drives speed changer to work by motor 1 belt pulley, speed changer is realized after primary speed-down, by cross connecting axle 18, drive double reduction gear box 17 motions, double reduction gear box 17 drives respectively two active crank wheels 8 to synchronously rotate by two gears 19, due to driven crank wheel 9 and initiatively crank wheel 8 engagements, so driven crank wheel 9 also starts to rotate, because connector 11 is flexibly connected for bearing 10 with active crank wheel 8, to be socketed with driven crank wheel 9, so two-wheeled is when rotating, connector 11 is setting in motion, because connector 11 other ends are to be connected with connecting rod 14, so connecting rod 14 can drive rocking arm 3 to do, lower reciprocating motion, rocking arm 3 ends are connected with lifting rope 7, lifting rope 7 is walked around support 5 by fixed pulley 4 and is driven import oil rig to do, lower motion, because connecting rod 14 is not to do regular circular motion, but speed while moving downward is fast, speed while moving downward is slow, so just cause speed that wellhead oil pumping device 6 moves upward faster than the speed moving downward.
Known referring to Fig. 2, in figure, CB represents the oil pumping track of wellhead oil pumping device 6 upstrokes, and BDC is the oil pumping track of wellhead oil pumping device 6 down strokes, and represented in the situation that of same distance in figure, the time that the time that upstroke consumes consumes than down stroke is short.
Claims (7)
1. one kind from the wide pivot angle oil pumper of speed change, comprise motor (1), gear, rocking arm pillar (2), be arranged on the rocking arm (3) on rocking arm pillar (2), be provided with support (5) and the wellhead oil pumping device (6) of fixed pulley (4), described motor (1) is connected with gear, the lifting rope (7) that rocking arm (3) end arranges connects wellhead oil pumping device (6) by the upper fixed pulley (4) of support (5), it is characterized in that: described gear is connected with initiatively crank wheel (8), initiatively crank wheel (8) is engaged with driven crank wheel (9), initiatively crank wheel (8) is upper is connected with connector (11) by bearing (10), connector (11) one end is connected with driven crank wheel (9), connector (11) other end is connected with rocking arm (3) by connecting rod (14), described and driven crank wheel (9) is connected on the connector (11) of one end and is provided with sliding tray (12), bearing (10) on driven crank wheel (9) is socketed in sliding tray (12), connector (11) one end that described and driven crank wheel (9) is connected is provided with arc bending (13), connector (11) other end with connecting rod (14) for being fixedly connected with.
2. according to claim 1 from the wide pivot angle oil pumper of speed change, it is characterized in that: the center of circle of described arc bending (13) part place circle overlaps with the center of circle of driven crank wheel (9).
3. according to claim 2 from the wide pivot angle oil pumper of speed change, it is characterized in that: described active crank wheel (8) and driven crank wheel (9) are respectively two, each active crank wheel (8) is symmetrical arranged with respect to gear, each driven crank wheel (9) is symmetrical arranged with respect to gear, two initiatively connect by fixed mount between crank wheel (8), between two driven crank wheels (9), also by fixed mount, connect, corresponding connector (11) and connecting rod (14) are also respectively provided with two, and two connecting rods (14) are all connected with rocking arm (3).
According to described in claim 1-3 any one from the wide pivot angle oil pumper of speed change, it is characterized in that: described gear comprises bracing frame (15), the gearbox (16) being connected with bracing frame (15), drives the double reduction gear box (17) that initiatively crank wheel (8) rotates, described gearbox (16) is connected by cross connecting axle (18) with double reduction gear box (17), described double reduction gear box (17) is by gear (19) and the initiatively outer engagement of crank wheel (8), and described motor (1) is connected with gearbox (16) by belt pulley.
5. according to claim 4 from the wide pivot angle oil pumper of speed change, it is characterized in that: described gearbox (16) is for slewing range is at 1:1---5 grades of gearboxes (16) of 7:1, described double reduction gear box (17) rotating ratio is 7:1, described gearbox is provided with presser type clutch in (16), between gearbox (16) and cross connecting axle (18), be provided with brake gear, the gear (19) of described reduction gear box (17) is 10:1 with the rotating ratio of active crank wheel (8).
6. according to claim 5 from the wide pivot angle oil pumper of speed change, it is characterized in that: described rocking arm (3) and rocking arm pillar (2) are flexibly connected by rotating cylinder (20); rocking arm (3) end is for being obliquely installed, along inclined plane, be aligned in sequence with a plurality of for the fixing connecting hole (21) of lifting rope (7); Described connecting rod (14) is connected with rocking arm (3) by bearing (10).
7. according to claim 6 from the wide pivot angle oil pumper of speed change, it is characterized in that: described fixed mount, support (5) and rocking arm pillar (2) are all arranged on base (22), on described rocking arm pillar (2) and support (5), be respectively arranged with the fixed bar (23) that supports fixation, described fixed bar (23) other end is all fixing with base (22), in support (5) upper end, be provided with crossbeam (24), on crossbeam (24), be provided with fixed pulley (4), crossbeam (24) one end is also provided with balance rope (25), balance rope (25) other end is connected with base (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210302187.1A CN102808602B (en) | 2012-08-23 | 2012-08-23 | Automatic speed-changing wide-swing-angle oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210302187.1A CN102808602B (en) | 2012-08-23 | 2012-08-23 | Automatic speed-changing wide-swing-angle oil pumping machine |
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| CN103061719B (en) * | 2013-01-10 | 2015-06-24 | 李兆胜 | Multifunctional double arm interaction double-drive-wheel self-speed-changing pumping unit |
| CN103061720B (en) * | 2013-01-10 | 2015-05-20 | 李兆胜 | Multifunctional double arm interaction single-drive-wheel self-speed-changing pumping unit |
| CN106837255B (en) * | 2017-03-06 | 2018-10-26 | 于会萍 | Reciprocating extracting device of oil |
| CN107401396B (en) * | 2017-09-22 | 2023-07-14 | 李兆胜 | Double driving wheel swing angle type oil pumping machine |
| CN107435530A (en) * | 2017-09-22 | 2017-12-05 | 李兆胜 | Single driven wheel swing arm pumping unit |
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| CN102808602A (en) | 2012-12-05 |
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