CN102418501B - Indirectly driven traction type pumping unit - Google Patents
Indirectly driven traction type pumping unit Download PDFInfo
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- CN102418501B CN102418501B CN201210000327.XA CN201210000327A CN102418501B CN 102418501 B CN102418501 B CN 102418501B CN 201210000327 A CN201210000327 A CN 201210000327A CN 102418501 B CN102418501 B CN 102418501B
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Abstract
The invention discloses an indirectly driven traction type pumping unit, which radically solves the problems of limited traction force, limited application environment and the like of the conventional traction type pumping unit. The pumping unit comprises a frame, a base, a hanging device and a traction device. The pumping unit is characterized in that: upper and lower motor seats for fixing a permanent magnet synchronous motor are respectively arranged on the frame and the base; a traction wheel of the traction device is assembled together with a rotor on a driving main shaft of the permanent magnet synchronous motor, and a coder is arranged at the end of the main shaft of the permanent magnet synchronous motor; drum-type gate arms are arranged on two sides of a brake wheel and connected with electromagnetic brakes on the upper part of the permanent magnet synchronous motor; left and right traction steel wire ropes are respectively wound on the same traction wheel in the same direction, and one end of each of the steel wire ropes goes around a lower pulley block and is fixed on the base; and the other ends of the steel wire ropes respectively go around a guide wheel and two upper pulley blocks fixed on the frame and are fixed on the frame. Compared with similar products, the pumping unit has the advantages of reasonable design, low cost, safety and reliability in operation, large traction force, high transmission efficiency and wide application range.
Description
Technical field
The present invention relates to a kind of traction type oil extractor, be particularly a kind ofly both applicable to location or neritic province domain low-lying, frequent ponding, be also applicable to wind large, need to often safeguard the indirect-drive towed formula oil pumper in location.Its alternative 20 type or above Large Oil beam machine, belong to oil extraction in oil field field of mechanical technique.
Background technology
At present, the most oil pumpers that use in China oil field are beam pumping units, and it is relatively simple for structure, durable, and maintenance and operation are more convenient, but exist transmission efficiency low, big energy-consuming, the defect such as consumptive material is many, and intelligent degree is low.In order to overcome above shortcoming, and respond the call that national energy-saving reduces discharging, people more and more pay attention to traction type oil extractor, and counterweight traction type oil extractor is many a kind of of application.As notification number be CN100504068C " pulley type flexible driving pumping unit ".It adopts flexible material that sucker rod and tandem-driving bogie are coupled together by cylinder, and sucker rod and liquid emphasis amount are just balanced case and balance a part like this, pulls tandem-driving bogie to move up and down again in addition by reel and the flexible-belt being connected with motor.Like this, compare beam pumping unit, this traction type oil extractor has reduced the power of motor, has promoted transmission efficiency, and has reduced use and the floor space of material.
The defect existing for existing traction type oil extractor, " the gearless counterweight traction type oil extractor of provided with motor at lower " that a kind of notification number is CN101413386A once designed at the applicant place company (Shenyang Languang Driving Technology Co., Ltd).This machine has adopted counterweight draw mode, by head sheave and movable pulley, the hanging function of steel wire rope of oil pumping unit and traction function is separated.Like this, hanging steel rope only need meet hanging function, can design very slightly, and to increase application life and safety factor, traction steel-cable only need meet extra traction, can design very carefully, to reduce the diameter of traction sheave and pulley.This design has solved the problem of the short and poor stability of the rope service-life of existing traction type oil extractor substantially.Yet it still exists unsatisfactory part.
In the design of traction type oil extractor, how the traction of motor being amplified to pull counterweight and sucker rod is a difficult point.Above-mentioned notification number be CN101413386A's " the gearless counterweight traction type oil extractor of provided with motor at lower " adopted by first stage decelerator and amplified the traction that motor provides.Similarly design is also embodied on " long-stroke dragging oil extractor " that CN100504068C and notification number are CN201367885Y.Due to the constant principle of reducer transmission torque, in order to increase output traction, the diameter of traction sheave must reduce.Yet fixedly in the situation that, the diameter that dwindles traction sheave can reduce the application life of wire rope (or flexible-belt) undoubtedly greatly in traction steel-cable (or flexible-belt) rope footpath.Therefore,, in its application, reducer is limited to the multiplication factor of motor traction, and transmission efficiency can not guarantee.If need to continue to increase traction, must improve the moment of torsion of drive motors.But, no matter be to adopt switched reluctance machines, still adopt permanent magnetism synchronization gear wheel free motor, its moment of torsion is all directly proportional to motor cost.Therefore, the type oil pumper, under the prerequisite of wananty costs, can only provide limited traction, cannot substitute 20 types or above Large Oil beam machine.
Transmitting motor traction to construction of wire rope, above three kinds of patents all disclose the design that adopts belt pulley.This is also the mature technology that existing beam pumping unit widely uses.Yet the principle pumping due to traction type oil extractor, connects traction machine and also can move back and forth with the belt of reducer, so can there be significantly decline in its life-span than the mechanism of equidirectional rotation (as oily beam machine).Because belt itself is with elastic force, the frictional force between belt and belt pulley cannot accurately be controlled, therefore be easy to skid in motor commutation.This has not only accelerated the aging of belt, and this type of phenomenon that " throws switch " has also produced very large problem to the accurate control of motor range.And the phenomenon of belt creep carries protection for the mistake of oil pumper and detecting has proposed very hang-up, above three kinds of patents all very imperfect solution are lost the protection problem of carrying.Moreover the structure that belt is combined with wire rope, makes this oil pumper complicated integral structure, floor space is large, is unfavorable for installation and maintenance.
Also have some oil pumpers to adopt assembly pulley and wire rope in the structure of amplification and transmission traction.The advantage of assembly pulley is that transmission efficiency is high, simple in structure, and use and maintenance expense is low.As notification number be CN201221340Y " a kind of T-shaped double-pulley set oil pumping machine " and notification number be CN201599009U " pulley transmission oil pumping machine ".This two schemes all adopts the common traction type oil extractor structure of putting on motor, relies on one group of wire rope to hang counterweight and sucker rod by the assembly pulley on directive wheel and both sides, and the traction that this group wire rope also transmits motor simultaneously pulls sucker rod to move back and forth.For the hanging function of wire rope, wire rope is longer thicker its application life.Yet for the traction function of wire rope, the ratio of diameter of pulley and wirerope diameter is longer larger its application life.Under this design concept, in order to guarantee the application life of wire rope, assembly pulley must be done very greatly.This installation and maintenance to machine has increased difficulty, and the cost of pulley also has significantly rising.Meanwhile, the design of above structure also has other deficiencies, for example: CN201221340Y adopts two wire rope one end to connect respectively counterweight (load) and sucker rod, and the other end is all fixed on cylinder by assembly pulley.Because the joint bending of wire rope on cylinder is larger, when cylinder rotates, steel rope abrasion is very large, and its safety also declines to a great extent.CN201599009U utilizes the frictional force between wire rope and traction sheave to transmit traction, yet, according to its disclosed winding of the wire rope, 180 ° of the cornerite less than of its traction steel-cable on traction sheave, effective frictional force cannot be provided, when transmitting large traction or motor commutation, easily produce wire rope skidding, the stroke to oil pumper, jig frequency all has impact.And this design produces back-flexing when steel wire penetrating movable pulley and fixed pulley, this kind of winding also can reduce the life-span of wire rope, increased the difficulty of care and maintenance.
In the design of existing oil pumper, the safeguard structure that oil well is met accident is also one of design difficulty.Its reason is that existing traction type oil extractor is to using the balance of counterweight and sucker rod as basis.At oil well, meet accident, during as the disconnected bar of sucker rod, equilibrium conditions is lost, and counterweight can produce the movement of falling object.Because traction provides condition limited, the traction producing only according to motor almost cannot be offset the downward impulse force of counterweight.Therefore, extra brake gear need to be installed larger traction is provided.For example CN201221340Y has adopted and on cylinder, has connected the flexible brake gear of the automatically controlled one of dish formula machinery, and CN100504068C is provided with brake gear on reducer, and CN201367885Y has placed brake safe pincers on balance loaded van.Yet the safeguard structure of above three kinds of patents exists common defect, i.e. the reliability of security protection can not guarantee.Because along with the increase of oil pumper type, the weight of counterweight also can increase, and generally has several tons of weights.No matter be mounted in the brake on loaded van, on cylinder or on reducer, only according to an one device, cannot guarantee to stop the movement of falling object of large quality counterweight.In addition, detection when existing traction type oil extractor carries losing is also a great problem, as CN201367885Y adopts centrifugal governor to detect counterweight, falls.When balance loaded van (the being counterweight) speed of service surpasses restriction speed, centrifugal governor action, drives check mechanism.Yet along with the increase of counterweight falling speed, its kinetic energy also can increase, brake needs larger energy to go to stop it to fall, and will cause the whole safety reduction of carrying protection of losing.
Existing traction type oil extractor often has a lot of restrictions in the design of drive motors position, because the position of motor need to be limited to, amplify and transmit the structure of traction and the syndeton of wire rope (or flexible-belt), it can be described as the of paramount importance part of whole oil pumper.The wild environment in oil field means that oil pumper all needs to have good adaptive capacity under various work condition environments.Yet, because drive motors itself is poor to the adaptive capacity of environment, the restriction of motor position also will be meaned to the restriction of traction type oil extractor to its applied environment.For example CN100504068C has adopted the design of putting on motor, due to machine gravity on the upper side, the area large at dust storm is provided with certain risk, and increased the difficulty of maintaining.CN101413386A has adopted the design of provided with motor at lower, because motor is overhead very near, so cannot install at low-lying location or the neritic province domain of often long-pending rain.
Summary of the invention
The object of this invention is to provide a kind of indirect-drive towed formula oil pumper, the traction that fundamentally solves existing traction type oil extractor existence is limited, and belt life is short; lose and carry the problems such as protection is not enough, and applied environment is restricted, it compared with similar products; reasonable in design, distribution of force is balanced, compact conformation; volume is little, lightweight, and cost is low, has safe and reliable to operation; traction is large; transmission efficiency is high, whole machine installation and easy to maintenance, advantage applied widely.
The technical solution adopted in the present invention is: this indirect-drive towed formula oil pumper comprise be fixed with frame support, be arranged on suspension arrangement in frame by sucker rod and counterweight is suspended on respectively the hanging steel rope of upper suspension sheave both sides, the permagnetic synchronous motor that is fixed on the driving traction sheave on motor cabinet of drag device, walk around traction sheave two ends by assembly pulley respectively with to the traction steel-cable reconnecting, its technical essential is: the fixedly upper and lower motor cabinet of permagnetic synchronous motor is set respectively on described frame and support; The traction sheave of drag device is with together with rotor assembling in permagnetic synchronous motor drive shaft, and the end of the main shaft of permagnetic synchronous motor arranges encoder; Drum-type lock arm is arranged on the both sides of braked wheel, is connected with the electromagnetic brake on permagnetic synchronous motor top; Left and right traction steel-cable is respectively in the same way on same traction sheave, one end of left and right traction steel-cable walks around respectively by being fixed on lower fixed pulley on support, be fixed on the downslide wheels that the lower movable pulley of counterweight bottom forms, and utilizes lower fag end combination to be fixed on support; The other end of left and right traction steel-cable is walked around respectively the directive wheel being fixed in frame, by being fixed on upper left and right fixed pulley in frame, be fixed on two top sheave groups that the upper left and right movable pulley on counterweight top forms, in utilization, fag end combination is fixed in frame, and the groove number of described upper and lower assembly pulley middle pulley matches with the number of turns that traction steel-cable is wound around.
The snubber bearing being fixed on described support arranges lower bumper, and counterweight top arranges upper bumper.
The pulley that the directive wheel of described frame top and the traction sheave on permagnetic synchronous motor adopt same specification, its pulley grooved and separation are all identical.
Advantage and good effect that the present invention has are: the suspension arrangement that it is CN101413386A in " the gearless counterweight traction type oil extractor of provided with motor at lower " that the present invention has adopted the notification number of technology maturation, by upper suspension sheave, the hanging function of steel wire rope of oil pumping unit and traction function are separated.Hanging steel rope only need meet hanging function like this, can design very slightly, and to increase application life and safety factor, traction steel-cable only need meet extra traction, can design very carefully, to reduce the diameter of traction sheave and pulley.Due to a left side, right traction steel-cable is respectively in the same way on same traction sheave, left, one end of right traction steel-cable is walked around respectively by the lower fixed pulley being fixed on support, be fixed on the downslide wheels of the lower movable pulley formation of counterweight bottom, utilize lower fag end combination to be fixed on support, left, the other end of right traction steel-cable is walked around respectively the directive wheel being fixed in frame, by being fixed on upper left in frame, right fixed pulley, be fixed on the upper left of counterweight top, two top sheave groups that right movable pulley forms, in utilization, fag end combination is fixed in frame, so it compared with similar products, reasonable in design, distribution of force is balanced, also increased safety.The groove number of upper and lower assembly pulley middle pulley matches with the number of turns that traction steel-cable is wound around, and according to traction steel-cable, upper and lower assembly pulley middle pulley is wound around the difference of the number of turns, can amplify on demand the pulling force of traction steel-cable to counterweight.The ratio of traction being amplified by upper and lower assembly pulley and the efficiency of transmission are high more than reducer, safeguard and install also more convenient.Owing to providing the cost of the permagnetic synchronous motor of traction to be directly proportional to its output torque, therefore the cost of permagnetic synchronous motor is significantly declined, thereby greatly reduce the cost of whole traction type oil extractor.The more important thing is, owing to having adopted the principle of counterweight traction, traction steel-cable only need to pull the weight difference of counterweight and beam hanger, coordinates the winding repeatedly of wire rope, and the every needed load of wire rope has been greatly diminished.Guaranteeing that under the prerequisite of rope service-life, the diameter of wire rope and assembly pulley can reduce, and has reduced the cost of machine, reducing again the difficulty of installing and safeguarding.
The present invention utilizes same traction steel-cable to be wound around upper and lower assembly pulley simultaneously, by fag end, is connected in support and frame, therefore in the safety of steel cable termina, has had and has increased substantially.Meanwhile, the present invention adopts all the time winding in the same way when wire rope is wound around upper and lower assembly pulley repeatedly, has avoided the back-flexing of wire rope, to also improving a lot its application life.
The traction sheave of drag device of the present invention is with together with rotor assembling in permagnetic synchronous motor drive shaft, and traction steel-cable is wound around several weeks to increase the contact area of itself and traction sheave on traction sheave and lower fixed pulley.The combination of fag end up and down that connects traction steel-cable can make its being attached on traction sheave tightly for wire rope provides enough pretightning forces, therefore when motor operation or commutation, there will not be belt pulley distinctive " skidding " phenomenon, the wearing and tearing of wire rope have been reduced, whole traction transmission mechanism also becomes simply simultaneously, for installation and maintenance provides convenience.
At oil well, meet accident, during as the disconnected bar of sucker rod, hanging balancing state is lost.Counterweight can produce freely falling body phenomenon.Because permagnetic synchronous motor has been installed encoder, its control system can be in the freely falling body action that detects accurately in a flash counterweight of lose carrying, in the situation that the relative velocity of counterweight is also very low, takes band-type brake action.While opening band-type brake, because the drum-type lock arm of installing has played the effect of lever, can produce very large frictional resistance to braked wheel.Because the present invention has adopted traction steel-cable, connect top sheave group, its pulling force can be amplified by assembly pulley secondary, is enough to reduce and even offsets the downward impulse force of counterweight.Because the present invention has designed two traction steel-cables, connect upper and lower assembly pulley simultaneously, be wrapped on traction sheave simultaneously.If wherein steel cable fracture when mistake is carried, the traction that motor internal contracting brake produces can all act on other steel cable, and its pulling force providing is equal to two wire rope, can play a protective role equally.The present invention is provided with polyurethane bumper absorber in the lower junction of counterweight top and support.If check mechanism is malfunctioning, counterweight tenesmus can first contact lower bumper, utilizes the kinetic energy of the deformation absorption counterweight of polyurethane, avoids pumping unit shelf structure to damage.Upper and lower snubber can also prevent that counterweight from moving too much up and down, protects pumping unit shelf structure, also can protect underground oil well pump to prevent from rushing pump and damage.Due to polyurethane have cold-resistant, heat-resisting, difficult deformation, the feature such as can not get rusty, the reliability of this anticollision device, collision-prevention device also increases greatly.Above triple protection mechanism makes the present invention have greatly and improve lose carrying in the safety of protection structure and reliability.
The present invention arranges respectively the fixedly upper and lower motor cabinet of permagnetic synchronous motor on frame and support, two directive wheels and traction sheave is designed to the pulley of same specification, and its pulley grooved and separation are all identical.Because upper and lower assembly pulley is symmetrical structure; and permagnetic synchronous motor can directly be connected with traction sheave; therefore only need to change winding of the wire rope; the function of traction sheave and directive wheel just can transposition; motor can be arranged on frame top as required (as low-lying; location or the shallow sea of frequent ponding) or below (as large in wind, to need the location of often safeguarding).Compare with existing oil pumper product, the present invention has increased the scope of the type oil pumper applied environment.
accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the structural representation of a kind of provided with motor at lower of the present invention;
Fig. 2 is that Fig. 1 is along the sectional view of A-A line;
Fig. 3 is the syndeton top view of traction sheave and lower fixed pulley in Fig. 1;
Fig. 4 is a kind of structural representation of carrying means in Fig. 1;
Fig. 5 is that Fig. 4 is along the sectional view of B-B line;
Fig. 6 is the structural representation of putting on a kind of motor of the present invention.
Sequence number explanation in figure: suspension sheave on 1, 2 hanging steel ropes, 3 sucker rods, 4 supports, 5 snubber bearings, 6 times fixed pulleys, 7 lower bumpers, 8 times movable pulley, 9 upper right movable pulley, 10 upper left movable pulley, 11 upper right fixed pulleys, 12 upper left fixed pulleys, fag end combination on 13, 14 hanging steel rope joints, 15 directive wheels, 16 upper bumpers, 17 counter weight guide tracks, 18 counterweights, 19 frames, 20 times fag end combinations, 21 right traction steel-cables, 22 left traction steel-cables, 23 traction sheaves, 24 drum-type lock arms, 25 permagnetic synchronous motors, 26 braked wheels, 27 electromagnetic brakes, 28 encoders, 29 electric machine main shafts, 30 bolts, motor cabinet on 31, 32 times motor cabinets.
the specific embodiment
According to Fig. 1～5, describe concrete structure of the present invention in detail.The parts such as this indirect-drive towed formula oil pumper comprises frame 19, support 4, be arranged on suspension arrangement in frame 19, drag device.Wherein suspension arrangement is without traction power, and substantially only plays the effect of balance bearing capacity.It comprises the upper suspension sheave 1 that is arranged on frame 19 tops, upper suspension sheave 1 is suspended on respectively upper suspension sheave 1 both sides by hanging steel rope 2 by sucker rod 3 and counterweight 18, along with sucker rod 3 oil pumping that moves up and down, counterweight 18 moves up and down in frame 19 inside along guide rail 17.The upper suspension sheave 1 that is arranged on frame 19 tops is unpowered mechanism, only rises and hangs and guide effect, therefore that its diameter can be done is very large.The diameter of hanging steel rope 2 depends on the suspended weights of suspension arrangement and the diameter of upper suspension sheave 1, thus can select single thicker wire rope as hanging steel rope 2 to increase its application life.Drag device mainly comprises traction sheave 23, is fixed on the directive wheel 15 of frame 19 tops and is fixed on frame 19, the assembly pulley on support 4 and counterweight 18.Upper left fixed pulley 12, upper right fixed pulley 11 is fixed on the top of frame 19, upper left movable pulley 10, upper right movable pulley 9 is fixed on the top of counterweight 18, and above two groups of fixed pulleys and movable pulley have formed respectively two groups of top sheave groups, and fixed pulley is upper, movable pulley under, for counterweight 18 provides pulling force upwards.Lower movable pulley 8 is fixed on the bottom of counterweight 18, and lower fixed pulley 6 is fixed on support 4, and their form movable pulley upper, fixed pulley under downslide wheels, for counterweight 18 provides downward pulling force, above three groups of assembly pulleys form the upper and lower assembly pulley of this oil pumper.
Left and right traction steel-cable 22,21 is respectively in the same way on same traction sheave 23.One end of left and right traction steel-cable 22,21 walks around by being fixed on lower fixed pulley 6 on support 4 simultaneously, be fixed on the downslide wheels that the lower movable pulley 8 of counterweight 18 bottoms forms, and utilizes lower fag end combination 20 to be fixed on support 4.The other end of left and right traction steel-cable 22,21 is walked around respectively the directive wheel 15 being fixed in frame 19, by being fixed on upper left and right fixed pulley 12,11 in frame 4, be fixed on two top sheave groups that the upper left and right movable pulley 10,9 on counterweight 18 tops forms, in utilization, fag end combination 13 is fixed in frame 19, and the groove number of above-mentioned upper and lower assembly pulley middle pulley matches with the number of turns that traction steel-cable 22,21 is wound around.According to the difference that is wound around the number of turns, can amplify on demand the pulling force of 22,21 pairs of counterweights 18 of traction steel-cable.Crooked to same direction all the time when traction steel-cable 22,21 is walked around upper and lower assembly pulley, avoid back-flexing wire rope.
The traction sheave 23 of drag device is with together with rotor assembling in the drive shaft 29 of permagnetic synchronous motor 25.For enough tractions are provided, left and right traction steel-cable 22,21, before being wound around upper and lower assembly pulley, is first wound around several weeks to increase the contact area of itself and traction sheave 23 on traction sheave 23 and lower fixed pulley 6.
End at the main shaft 29 of permagnetic synchronous motor 25 is provided with encoder 28, and braked wheel 26 has been installed on main shaft 29.Braked wheel 26 is fixing by bolt 30 with the relative position of traction sheave 23 on main shaft 29.Drum-type lock arm 24 is arranged on the both sides of braked wheel 26, is connected with the electromagnetic brake 27 on permagnetic synchronous motor 25 tops.When oil well something unexpected happened, bar as disconnected in sucker rod 3, hanging balancing condition is lost, and counterweight 18 can produce freely falling body phenomenon.Losing the moment of carrying, encoder 28 detects the freely falling body action of counterweight, by drum-type lock arm 24 closures on electromagnetic brake 27 operation permagnetic synchronous motors 25.This closed action by drum-type lock arm 24 by braked wheel 26 embracing tightly, the frictional force that both produce is delivered on two traction steel-cables 22,21 in left and right by traction sheave 23, again by upper left and right fixed pulley 12,11, upper left and right movable pulley 10,9 amplifies the pulling force on wire rope, finally be applied on counterweight 18, make it be enough to minimizing and even offset the downward impulse force of counterweight 18.
The snubber bearing 5 being fixed on support 4 arranges lower bumper 7, and counterweight 18 tops arrange upper bumper 16.Wherein go up the cylinder that lower bumper 16,7 is made for polyurethane material, flexible.If check mechanism is malfunctioning, counterweight 18 tenesmus can first contact lower bumper 7, and most kinetic energy when the deformation meeting of its polyurethane material absorbs counterweight 18 tenesmus, plays cushioning effect, to reduce the impact of counterweight 18, Pumping Unit is damaged.In addition, upper and lower snubber 16,7 can limit the stroke of counterweight 18 when oil pumper normally moves, and on the counterweight 18 that prevents from causing because control system is malfunctioning, lower direction operation too much.
The pulley that the directive wheel of frame 19 tops 15 and the traction sheave 23 on permagnetic synchronous motor 25 is designed to same specification, its pulley grooved and separation are all identical, reserved upper motor cabinet 31 in the middle of directive wheel.If desired on motor, put, that permagnetic synchronous motor 25 is separated with traction sheave 23, from lower motor cabinet 32, pull down, be installed on motor cabinet 31, connect directive wheel 15.Now traction steel-cable 21,22 windings in left and right are slightly different, are about to directive wheel 15 and provide traction as traction sheave 23, connect lower fixed pulley 6 and lower movable pulley 8 using traction sheave 23 as directive wheel 15.
Claims (1)
1. an indirect-drive towed formula oil pumper, comprise the support that is fixed with frame, what be arranged on suspension arrangement in frame is suspended on sucker rod and counterweight respectively the hanging steel rope of upper suspension sheave both sides, the permagnetic synchronous motor that is fixed on the driving traction sheave on motor cabinet of drag device, the two ends of walking around traction sheave by assembly pulley respectively with to the traction steel-cable reconnecting, the traction sheave of drag device is with together with rotor assembling in permagnetic synchronous motor drive shaft, the end of the main shaft of permagnetic synchronous motor arranges encoder, on, the groove number of downslide wheels matches with the number of turns that traction steel-cable is wound around, it is characterized in that: the upper of fixing permagnetic synchronous motor is set respectively on described frame and support, lower motor cabinet, drum-type lock arm is arranged on the both sides of braked wheel, is connected with the electromagnetic brake on permagnetic synchronous motor top, left and right traction steel-cable is respectively in the same way on same traction sheave, one end of left and right traction steel-cable walks around respectively by being fixed on lower fixed pulley on support, be fixed on the downslide wheels that the lower movable pulley of counterweight bottom forms, and utilizes lower fag end combination to be fixed on support, the other end of left and right traction steel-cable is walked around respectively the directive wheel being fixed in frame, by being fixed on upper left and right fixed pulley in frame, be fixed on two top sheave groups that the upper left and right movable pulley on counterweight top forms, in utilization, fag end combination is fixed in frame, the snubber bearing being fixed on described support arranges lower bumper, and counterweight top arranges upper bumper, the directive wheel of frame top and the traction sheave on permagnetic synchronous motor adopt the pulley of same specification, and its pulley grooved and separation are all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000327.XA CN102418501B (en) | 2012-01-04 | 2012-01-04 | Indirectly driven traction type pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000327.XA CN102418501B (en) | 2012-01-04 | 2012-01-04 | Indirectly driven traction type pumping unit |
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| CN102418501A CN102418501A (en) | 2012-04-18 |
| CN102418501B true CN102418501B (en) | 2014-08-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108678689A (en) * | 2018-04-23 | 2018-10-19 | 廖恒伟 | A kind of oil-well rig hydraulic hoisting machine host |
| CN111977492B (en) * | 2020-08-31 | 2022-03-04 | 上海缆慧检测技术有限公司 | Low-energy-consumption elevator operation method |
| CN117432728B (en) * | 2023-12-21 | 2024-02-20 | 山东博康石油工程技术有限公司 | Anti-falling motor reversing type pumping unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100353024C (en) * | 2005-03-15 | 2007-12-05 | 沈阳工业大学 | Electronic, electrical and mechanical integrated dragging pumping unit |
| CN2779056Y (en) * | 2005-03-28 | 2006-05-10 | 哈尔滨三方直线电磁技术有限公司 | Linear electromagnetic well pumping unit |
| CN201013573Y (en) * | 2007-01-22 | 2008-01-30 | 崔钢都 | Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine |
| CN201284643Y (en) * | 2008-11-11 | 2009-08-05 | 王武 | Electric motor under-positioned gearless counterweight traction type oil pumping unit |
| CN201696001U (en) * | 2010-02-10 | 2011-01-05 | 王颖 | Pumping unit employing anti-drop emergency brake and unload hanging linkage protection |
| CN202402012U (en) * | 2012-01-04 | 2012-08-29 | 王宇博 | Indirect driving traction type pumping unit |
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