CN103410479A - Double-drive mechanism of pumping unit - Google Patents
Double-drive mechanism of pumping unit Download PDFInfo
- Publication number
- CN103410479A CN103410479A CN2013103506364A CN201310350636A CN103410479A CN 103410479 A CN103410479 A CN 103410479A CN 2013103506364 A CN2013103506364 A CN 2013103506364A CN 201310350636 A CN201310350636 A CN 201310350636A CN 103410479 A CN103410479 A CN 103410479A
- Authority
- CN
- China
- Prior art keywords
- main
- synchronous motor
- driving group
- synchronous
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention discloses a double-drive mechanism of a pumping unit. The mechanism comprises a main drive group and an auxiliary drive group which are arranged at two ends of a spindle symmetrically. The main drive group comprises a main synchronization motor, a reducer and a coupler which are sequentially connected in a transmission mode. The auxiliary drive group comprises an auxiliary synchronization motor, a reducer and a coupler which are sequentially connected in a transmission mode. The two couplers of the main drive group and the auxiliary drive group are connected with one end of an output shaft and one end of a spindle of corresponding reducers, and a traction sheave is sleeved on the spindle. The double-drive mechanism further comprises a synchronization control system used for controlling the main synchronization motor and the auxiliary synchronization motor to run synchronously. The load is driven by the two drive groups synchronously, and operation capability of a machine is improved greatly. The stress balance degree of the traction sheave is good, skip kinetic moment is well avoided, and stable running of the whole machine is ensured. The double-drive mechanism has the advantages of being small in synchronization motor heating quantity, high in power factor, balanced in rotation torque distribution, less in reactive loss, remarkable in energy saving effect, low in cost, convenient to install, high in safety factor and the like.
Description
Technical field
The present invention relates to oil pumper actuation techniques field, specifically refer to the two mechanisms of driving of a kind of oil pumper.
Background technology
Oil pumper is a kind of machinery equipment of recover petroleum, and traditional a kind of oil pumper is beam pumping unit, and its maximum outstanding electric load is not high, can pull load limited, can only be applicable to the oil well oil-pumping of low depth.For the defect of traditional beam pumping unit, we have researched and developed a kind of wheeled servo oil pumper, and the driving mechanism of this oil pumper is for singly driving mechanism, and what namely drive the traction sheave rotation is to come transmission to drive by the mechanism that single group motor, reductor and shaft coupling form.The described maximum polished rod load that singly drives mechanism's oil pumper can reach 400Nm, can pull the load of 40t, is applicable to the oil well oil-pumping of the 6000m degree of depth, and these parameters are that traditional beam pumping unit does not reach far away.
Due to the development of the breadth and depth of recovering the oil, more than the oil recovery degree of depth in some oil field can reach 12000m.Oil viscosity, contain the variations such as sand, water content, also to pumping unit, gone out many difficult problems.Improving the ability to work that improves pumping unit, constantly meet the needs of the development of recovering the oil, is the unremitting effort that Petroleum Machinery Manufacturing Industry should be use up.Described singly drive mechanism in application in practice, exist below some problems:
One, due to the limit of motor and supporting machinery equipment, there is certain limitation in the selection of single-machine capacity, and power expansion is limited in scope, and has limited the work capacity of board; And also there are expensive problem in heavy-duty motor and corollary equipment;
Two, singly driving mechanism is monolateral driving, and the stress balance degree of traction sheave is poor, can produce and lift up kinetic moment, finally can affect whole board even running;
Three, due to powerful unit running, corresponding connecting axle also needs the relative overstriking increasing of wanting with the machinery support components/devices; And described these equipment some also can be subjected to the restriction of power limit, singly drive mechanism and also can't meet the power demand requirement.
In view of this, the inventor conducts in-depth research for the problem that existing oil pumper list drives mechanism's existence, and this case produces thus.
Summary of the invention
The object of the present invention is to provide that a kind of oil pumper is two drives mechanism, overcome the existing shortcomings such as equipment heaviness, power limited, board that mechanism exists be unstable of singly driving.
Reach above-mentioned purpose, solution of the present invention is:
A kind of oil pumper is two drives mechanism, comprises the main driving group that is symmetrically set in the main shaft two ends and from the driving group; Described main driving group comprises main synchronous motor, reductor and the shaft coupling be in transmission connection successively, described from the driving group comprise be in transmission connection successively from synchronous motor, reductor and shaft coupling, described main driving group and being connected in respectively from two described shaft couplings of driving group on an end of the output shaft of corresponding described reductor and described main shaft, be arranged with traction sheave on this main shaft; Also comprise synchronous control system, this synchronous control system is for controlling described main synchronous motor and keeping synchronous operation from synchronous motor.
Described synchronous control system comprises host computer, master controller, reaches from encoder from controller, main encoder; Described main synchronous motor, master controller and the main encoder main closed control loop that is electrically connected to form successively, described from synchronous motor, from controller and be electrically connected to form successively one from closed control loop from encoder; Described master controller and being electrically connected with the control end of described host computer respectively from the control end of controller, the control output end of described master controller is electrically connected to the control input end from controller.
Described main synchronous motor and from synchronous motor for being permagnetic synchronous motor, described reductor is planetary reducer, described shaft coupling is snakelike shaft coupling.
After adopting such scheme, the present invention is with respect to the beneficial effect of prior art: by master and slave two groups of driving groups, jointly drive traction sheave, guarantee that by synchronous control system two groups of driving groups keep synchronous operation.Compare tradition and singly drive mechanism, one two drive mechanism and have following some advantage dragged in this case two:
One, load is synchronously driven by two groups of driving groups, in identical load value situation, the power correspondence of the synchronous motor of two groups of driving groups reduces by half, and has been equivalent to conversely expand the power selection scope of synchronous motor and other board equipment, greatly improve the work capacity of board, played merit effect doubly;
Two, two groups of driving groups arrange and synchronous operation in the main shaft bilateral symmetry, and the stress balance degree of traction sheave is fabulous, fabulous avoided producing lift up the kinetic moment problem, guaranteed whole board even running;
Three, by synchronous control system, controlled, control the synchronous motor of two groups of driving groups and only bear constantly separately 1/2 load, the synchronous motor calorific value is little, and power factor is high, the rotating torque partition equilibrium, and reactive loss reduces, and energy-saving effect is also obvious;
Four, this case two-shipper drives and replaces traditional unit to drive, realize that powerful device decomposes, Reduction of Students' Study Load is thick, stupid, ancillary facility heavily a lot, overcome in the high load capacity situation and can't meet the delivery needs of problems owing to being subjected to each equipment power limit restriction, cost is low, simple installation but also bring, the safety factor advantages of higher.
The accompanying drawing explanation
Fig. 1 is the two front views of mechanism that drive of this case;
Fig. 2 is the two schematic diagrames that drive in mechanism's application of this case;
Fig. 3 is the circuit theory diagrams of this case synchronous control system.
Label declaration
Main driving group 1 main synchronous motor 11
Reductor 12 shaft couplings 13
From driving group 2 from synchronous motor 21
Reductor 22 shaft couplings 23
Traction sheave 3 synchronous control systems 4
Host computer 41 master controllers 42
From encoder 45 crank bands 5
Balance 6 oil well pumps 7
Main shaft 8
The specific embodiment
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
This case relates to that a kind of oil pumper is two drives mechanism, as shown in Figure 1, mainly comprises the main driving group 1 that is symmetrically set in the main shaft two ends and from driving group 2.Main driving group 1 comprises main synchronous motor 11, reductor 12 and the shaft coupling 13 be in transmission connection successively.From driving group 2 comprise be in transmission connection successively from synchronous motor 21, reductor 22 and shaft coupling 23.The shaft coupling 13 of main driving group 1 is connected on an end of the output shaft of reductor 12 and main shaft 8, from the shaft coupling 23 of driving group 2, is connected on an end of the output shaft of reductor 22 and main shaft 8, is arranged with traction sheave 3 on this main shaft 8.Preferably, main synchronous motor 11 and be permagnetic synchronous motor from synchronous motor 21, reductor 12,22 is planetary reducer, and shaft coupling 13,23 is snakelike shaft coupling.
Described main driving group 1 and from the 2 run-in synchronism work of driving group, namely by main synchronous motor 11, synchronously drive from synchronous motor 12, after reductor 12,22 slows down separately, common synchronous main shaft 8 rotations that drive, final common traction sheave 3 corresponding rotation that drive.As shown in Figure 2, on traction sheave 3, be arranged with crank band 5, the two ends of crank band 5 are linked with respectively configuration balance weight 6 and oil well pump 7, positive and negative alternate rotation along with traction sheave 3, drive oil well pump 7 operation repeatedly up and down, and between oil well pump 7 and configuration balance weight 6, form the balance-type type balance, form one and constantly exchange the process that stores and discharge potential energy.
Described main driving group 1 and form two-shippers from driving group 2 and drive, guarantee that the two-shipper running is synchronous, under the relatively high power motor operating state, if the torque of the synchronous motor of two groups of driving groups, rotating speed can not be synchronous, is to reach two purposes of driving.This case is two thus drives mechanism and also comprises synchronous control system 4, be used to controlling main synchronous motor 11 and keeping synchronous operations from synchronous motor 21.
This case provides synchronous control system 4 one preferred embodiments, as shown in Figure 3, comprises host computer 41, master controller 42, main encoder 43, reaches from encoder 45 from controller 44.Described main synchronous motor 11, master controller 42 and the main encoder 43 main closed control loop that is electrically connected to form successively, the control end and the main synchronous motor 11 that are master controller 42 are electrically connected, and the input of encoder 43, output are connected electrically in respectively on the input that reaches master controller 42 on main synchronous motor 11.By main controller 42, control main synchronous motor 11 runnings, main encoder 43 is followed the tracks of the running parameter that gathers main synchronous motor 11, and the running parameter of collection is fed back to master controller 42.In like manner, described from synchronous motor 21, from controller 44 and be electrically connected to form successively one from closed control loop from encoder 45, should be similar from closed control loop and above-mentioned main closed control loop operating principle, tire out and state no longer in detail here.
Described master controller 42 and being electrically connected with the control end of host computer 41 respectively from the control end of controller 44, the control output end of master controller 42 is electrically connected to the control input end from controller 44.Host computer 41 is specially the PLC programmable logic controller, is the master control unit of whole synchronous control system.By 41 pairs of master controllers of host computer 42, carry out rotating speed and control, 41 pairs of communications from controller 44 of host computer are to read the parameters such as current speed from controller 44, frequency, torque, power, warning message.By master controller 42, send torque instruction to from controller 44, according to this instruction, adjust the operating frequency from synchronous motor 21 from controller 44, allow master and slave motor share separately running load.Described master controller 42 and be preferably Multifunctional frequency converter (SINUS PENTA) from controller 44.
This case is two drives mechanism and jointly drives traction sheave 3 by two groups of driving groups (main driving group 1 and from driving group 2), guarantees two groups of driving group synchronous operations by synchronous control system 4.In work, when load changes, main driving group 1 and can follow the tracks of in time the variation of the load of bearing separately from driving group 2, redistribute for loading on between main driving group the condition that provides.Concrete, the main synchronous motor 11 of main driving group 1 is as the criterion with speed, sets running speed, from driving group 2 from synchronous motor 21, take torque as main, by communication mode, receive torque instruction that master controllers 42 transmit to adjust accordingly from controller 44.When load increases or reduces, main driving group 1 flows to from the torque of driving group 2 and also correspondingly increases or reduce, under the effect of torque PID, adjusting is identical with the main synchronous motor 11 of main driving group 1 from synchronous motor 21 output torques, rotating speed from driving group 2, thereby make main synchronous motor 11 and respectively bear a half load from synchronous motor 21, the load general power is divided equally, reaches main synchronous motor 11 and synchronous from synchronous motor 21.
During oil pumper work, the process that each oil pumping all has a rising, descends, we are three sections of bottoms, middle part, top by each rising or the rough segmentation of decline process, this load of three sections is all not identical, and the output torque from driving group 2 all can, according to the variation of load, be adjusted in described main driving group 1 and main control closed-loop path, accomplish the load general goal energetically, load is little goes out little power, reduces idle work, also plays energy-conserving action.
To sum up, this case oil pumper is two to be driven mechanism and carries out the improvement of innovation formula singly driving on the mechanism basis, greatly expanded the work effect of oil pumper, realize the effect that one-plus-one equals two, concrete this case is two drives pattern than singly driving the parameters of pattern, such as outstanding electric load, oil well depth, pull load etc., correspondingly be doubled.
The foregoing is only the preferred embodiments of the present invention, all equalizations of doing with the claims in the present invention scope change and modify, and all should belong to the scope of the claims in the present invention.
Claims (3)
1. an oil pumper is two drives mechanism, it is characterized in that: comprise the main driving group that is symmetrically set in the main shaft two ends and from the driving group; Described main driving group comprises main synchronous motor, reductor and the shaft coupling be in transmission connection successively, described from the driving group comprise be in transmission connection successively from synchronous motor, reductor and shaft coupling, described main driving group and being connected in respectively from two described shaft couplings of driving group on an end of the output shaft of corresponding described reductor and described main shaft, be arranged with traction sheave on this main shaft; Also comprise synchronous control system, this synchronous control system is for controlling described main synchronous motor and keeping synchronous operation from synchronous motor.
2. a kind of oil pumper as claimed in claim 1 is two drives mechanism, it is characterized in that: described synchronous control system comprises host computer, master controller, reaches from encoder from controller, main encoder; Described main synchronous motor, master controller and the main encoder main closed control loop that is electrically connected to form successively, described from synchronous motor, from controller and be electrically connected to form successively one from closed control loop from encoder; Described master controller and being electrically connected with the control end of described host computer respectively from the control end of controller, the control output end of described master controller is electrically connected to the control input end from controller.
3. a kind of oil pumper as claimed in claim 2 is two drives mechanism, it is characterized in that: described main synchronous motor and from synchronous motor for being permagnetic synchronous motor, described reductor is planetary reducer, described shaft coupling is snakelike shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350636.4A CN103410479B (en) | 2013-08-13 | 2013-08-13 | A kind of oil pumper Shuan Qu mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350636.4A CN103410479B (en) | 2013-08-13 | 2013-08-13 | A kind of oil pumper Shuan Qu mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410479A true CN103410479A (en) | 2013-11-27 |
| CN103410479B CN103410479B (en) | 2016-02-10 |
Family
ID=49603513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310350636.4A Active CN103410479B (en) | 2013-08-13 | 2013-08-13 | A kind of oil pumper Shuan Qu mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103410479B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821504A (en) * | 2014-02-26 | 2014-05-28 | 南通市飞宇石油科技开发有限公司 | Transfer synchronizing mechanism of high-temperature and high-pressure formation fluid analysis meter |
| CN104016255A (en) * | 2014-06-16 | 2014-09-03 | 福建省意科电气科技有限公司 | Double-direction turning and lifting device |
| CN108127805A (en) * | 2017-12-25 | 2018-06-08 | 刘冉冉 | A kind of pvc pipe cools down mixing arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6749017B1 (en) * | 1999-08-27 | 2004-06-15 | Xu Lu | Full automatic machine for oil extraction |
| CN201001092Y (en) * | 2006-12-25 | 2008-01-02 | 天津七所高科技有限公司 | Dual-drive synchronous controller |
| CN201864320U (en) * | 2010-11-09 | 2011-06-15 | 山东迈赫自动化装备股份有限公司 | Double-drive synchronization control transporter |
| CN202872610U (en) * | 2012-11-09 | 2013-04-10 | 王颖 | Dual-drive four-insurance speed reducer |
| CN203476293U (en) * | 2013-08-13 | 2014-03-12 | 福建省意科电气科技有限公司 | Double-driving mechanism of pumping unit |
-
2013
- 2013-08-13 CN CN201310350636.4A patent/CN103410479B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6749017B1 (en) * | 1999-08-27 | 2004-06-15 | Xu Lu | Full automatic machine for oil extraction |
| CN201001092Y (en) * | 2006-12-25 | 2008-01-02 | 天津七所高科技有限公司 | Dual-drive synchronous controller |
| CN201864320U (en) * | 2010-11-09 | 2011-06-15 | 山东迈赫自动化装备股份有限公司 | Double-drive synchronization control transporter |
| CN202872610U (en) * | 2012-11-09 | 2013-04-10 | 王颖 | Dual-drive four-insurance speed reducer |
| CN203476293U (en) * | 2013-08-13 | 2014-03-12 | 福建省意科电气科技有限公司 | Double-driving mechanism of pumping unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821504A (en) * | 2014-02-26 | 2014-05-28 | 南通市飞宇石油科技开发有限公司 | Transfer synchronizing mechanism of high-temperature and high-pressure formation fluid analysis meter |
| CN103821504B (en) * | 2014-02-26 | 2016-04-06 | 南通市飞宇石油科技开发有限公司 | HTHP formation fluid analysis instrument turn sample lazy-tongs |
| CN104016255A (en) * | 2014-06-16 | 2014-09-03 | 福建省意科电气科技有限公司 | Double-direction turning and lifting device |
| CN108127805A (en) * | 2017-12-25 | 2018-06-08 | 刘冉冉 | A kind of pvc pipe cools down mixing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103410479B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102420552B (en) | Control loop and control method for improving starting and stopping performance of motor | |
| CN104878969A (en) | Lifting and transverse moving type parking equipment driven by frequency converter | |
| CN103552457B (en) | Oil/electric hybrid rotary drilling rig driving system | |
| CN103410479A (en) | Double-drive mechanism of pumping unit | |
| CN203697235U (en) | Gypsum board turning control system | |
| CN100406649C (en) | Control method and apparatus for omnirange stepless speed-adjusting travel drive of milling machine | |
| CN203476293U (en) | Double-driving mechanism of pumping unit | |
| CN2820525Y (en) | Hydraulic driving device for intelligent variable frequency electric hydraulic press | |
| CN102220853A (en) | Asymmetrically operated non-beam coal bed gas sampling method and device | |
| CN205883090U (en) | Improve motor frequency conversion energy -saving control system for cement kiln | |
| CN201604998U (en) | Drive device for adhesive tape machine | |
| CN206857944U (en) | A kind of energy-saving hydraulic staircase | |
| CN103216607B (en) | A kind of oil field differential speed type pulley apparatus, application process and pumping unit | |
| CN205792335U (en) | The winding series-parallel conversion device of novel permanent magnetic synchronous motor | |
| CN104029594A (en) | High-power combined type stepless speed regulating energy conservation power system | |
| CN104290470A (en) | Shaftless synchronous device for color printer and drying stove | |
| CN203876577U (en) | Full hydraulic drive mining self-unloading vehicle | |
| CN110282551B (en) | Parallel operation control method for permanent magnet synchronous motors of crane cart walking | |
| CN201753598U (en) | Chain type twin-well energy-saving oil extractor | |
| CN202326540U (en) | Variable frequency control hydraulic driving system | |
| CN206753548U (en) | A kind of switched reluctance machines one drag two extracting device of oil | |
| CN201258958Y (en) | Electromagnetical clutch automatic reversing decelerator for pumping unit | |
| CN204804782U (en) | Energy -saving beam -pumping unit | |
| CN204376612U (en) | Dual input transmission device | |
| CN204716888U (en) | A kind of traveller classification drive device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |