CN103410479B - A kind of oil pumper Shuan Qu mechanism - Google Patents
A kind of oil pumper Shuan Qu mechanism Download PDFInfo
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- CN103410479B CN103410479B CN201310350636.4A CN201310350636A CN103410479B CN 103410479 B CN103410479 B CN 103410479B CN 201310350636 A CN201310350636 A CN 201310350636A CN 103410479 B CN103410479 B CN 103410479B
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Abstract
The present invention discloses a kind of oil pumper Shuan Qu mechanism, comprises the main driving group that is symmetrically set in main shaft two ends and from driving group; Main driving group comprises the main synchronous motor, reductor and the shaft coupling that are in transmission connection successively, from driving group comprise be in transmission connection successively from synchronous motor, reductor and shaft coupling, main driving group and being connected in respectively the corresponding output shaft of reductor and an end of main shaft from two shaft couplings of driving group, this main shaft is arranged with traction sheave; Also comprise synchronous control system, for controlling main synchronous motor and keeping synchronous operation from synchronous motor.Load is synchronously driven by two groups of driving groups, substantially increases the work capacity of board; The stress balance degree of traction sheave is fabulous, fabulously avoids generation and lifts up kinetic moment problem, ensure that overall board even running; Have synchronous motor calorific value little, power factor is high, rotating torque partition equilibrium, and reactive loss reduces, and energy-saving effect is obvious, and cost is low, simple installation, safety factor advantages of higher.
Description
Technical field
The present invention relates to oil pumper actuation techniques field, specifically refer to a kind of oil pumper Shuan Qu mechanism.
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, load can be pulled 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 Dan Qu mechanism, and what namely drive traction sheave to rotate is carry out transmission drive by singly organizing mechanism that motor, reductor and shaft coupling form.The maximum polished rod load of described Dan Qu mechanism oil pumper can reach 400Nm, can pull the load of 40t, be 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 oil recovery, the oil recovery degree of depth in some oil field can reach more than 12000m.The viscosity of oil, containing the change such as sand, water content, also many difficult problems are gone out to pumping unit.Improve the ability to work improving pumping unit, constantly meeting the needs of development of recovering the oil, is the unremitting effort that Petroleum Machinery Manufacturing Industry should be use up.Some problems below described Dan Qu mechanism exists in practical application:
One, due to the limit of motor and supporting machinery equipment, the selection of single-machine capacity has some limitations, and power expansion is limited in scope, and limits the work capacity of board; And also there is expensive problem in heavy-duty motor and corollary equipment;
Two, Dan Qu mechanism is monolateral driving, and the stress balance degree of traction sheave is poor, can produce and lift up kinetic moment, finally can affect overall board even running;
Three, because powerful unit operates, corresponding connecting axle and machinery support components/devices also need relatively to want overstriking to strengthen; And these equipment described some also can by the restriction of power limit, Dan Qu mechanism also cannot meet power demand requirement.
In view of this, the present inventor conducts in-depth research for existing oil pumper Dan Qu mechanism Problems existing, and this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of oil pumper Shuan Qu mechanism, overcome the shortcoming such as equipment heaviness, power limited, board instability that existing Dan Qu mechanism exists.
Reach above-mentioned purpose, solution of the present invention is:
A kind of oil pumper Shuan Qu mechanism, comprises the main driving group that is symmetrically set in main shaft two ends and from driving group; Described main driving group comprises the main synchronous motor, reductor and the shaft coupling that are in transmission connection successively, described from driving group comprise be in transmission connection successively from synchronous motor, reductor and shaft coupling, described main driving group and being connected in respectively the corresponding output shaft of described reductor and an end of described main shaft from shaft coupling described in two of driving group, this main shaft is arranged with traction sheave; 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 comprise host computer, master controller, from controller, main encoder and from encoder; Described main synchronous motor, master controller and main encoder are electrically connected to form a main closed control loop successively, described from synchronous motor, be electrically connected to form one successively from closed control loop from controller and 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 electrical connection of described master controller is from the control input end of controller.
Described main synchronous motor and from synchronous motor for being permagnetic synchronous motor, described reductor is planetary reducer, and described shaft coupling is snakelike shaft coupling.
After adopting such scheme, the present invention is relative to the beneficial effect of prior art: jointly drive traction sheave by master and slave two groups of driving groups, guarantees that two groups of driving groups keep synchronous operation by synchronous control system.Compare traditional Dan Qu mechanism, this case two drags the Shuan Qu mechanism of to have some advantage following:
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 is equivalent to the power selection scope extending synchronous motor and other board equipment conversely, substantially increase the work capacity of board, play merit effect doubly;
Two, two groups of driving groups are arranged and synchronous operation in main shaft bilateral symmetry, then the stress balance degree of traction sheave is fabulous, fabulously avoid generation and lift up kinetic moment problem, ensure that overall board even running;
Three, controlled by synchronous control system, the synchronous motor controlling two groups of driving groups only bears 1/2 load separately constantly, and synchronous motor calorific value is little, and power factor is high, rotating torque partition equilibrium, and reactive loss reduces, and energy-saving effect is also obvious;
Four, this case twin-engined drives replaces conventional individual to drive, realize powerful device to decompose, the ancillary facility that Reduction of Students' Study Load is much thick, stupid, heavy, delivery needs of problems cannot be met owing to being subject to the restriction of each equipment power limit under overcoming high load capacity situation, but also bring that cost is low, simple installation, safety factor advantages of higher.
Accompanying drawing explanation
Fig. 1 is the front view of this case Shuan Qu mechanism;
Fig. 2 is the schematic diagram in the application of this case Shuan Qu mechanism;
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 coupling 13
From driving group 2 from synchronous motor 21
Reductor 22 shaft coupling 23
Traction sheave 3 synchronous control system 4
Host computer 41 master controller 42
Main encoder 43 is from controller 44
From encoder 45 crank band 5
Balance 6 oil well pump 7
Main shaft 8
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
This case relates to a kind of oil pumper Shuan Qu mechanism, as shown in Figure 1, mainly comprises the main driving group 1 that is symmetrically set in main shaft two ends and from driving group 2.Main driving group 1 comprises the main synchronous motor 11, reductor 12 and the shaft coupling 13 that are 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 the output shaft of reductor 12 and an end of main shaft 8, is connected in the output shaft of reductor 22 and an end of main shaft 8, this main shaft 8 is arranged with traction sheave 3 from the shaft coupling 23 of driving group 2.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 driving group 2 run-in synchronism work, namely by main synchronous motor 11, synchronously drive from synchronous motor 12, after respective reductor 12,22 slows down, the common synchronous main shaft 8 that drives rotates, and finally jointly drives traction sheave 3 corresponding rotation.As shown in Figure 2, traction sheave 3 is arranged with crank band 5, the two ends of crank band 5 are linked with configuration balance weight 6 and oil well pump 7 respectively, along with the positive and negative alternate of traction sheave 3 rotates, oil well pump about 7 is driven repeatedly to run, and between oil well pump 7 and configuration balance weight 6, form balance-type type balance, form one and constantly exchange and store and the process of release potential energy.
Described main driving group 1 and form twin-engined drives from driving group 2, guarantee that two-shipper running is synchronous, under 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 cannot reach two to drive object.This case Shuan Qu mechanism also comprises synchronous control system 4 thus, for controlling main synchronous motor 11 and keeping synchronous operation from synchronous motor 21.
This case provides synchronous control system 4 one preferred embodiment, as shown in Figure 3, comprise host computer 41, master controller 42, main encoder 43, from controller 44 and from encoder 45.Described main synchronous motor 11, master controller 42 and main encoder 43 are electrically connected to form a main closed control loop successively, namely the control end of master controller 42 and main synchronous motor 11 are electrically connected, and the input of encoder 43, output are connected electrically on main synchronous motor 11 and on the input of master controller 42 respectively.Control main synchronous motor 11 by main controller 42 to operate, main encoder 43 follows the tracks of the running parameter gathering 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, be electrically connected to form one successively from closed control loop from controller 44 and from encoder 45, should be similar from closed control loop and above-mentioned main closed control loop operating principle, tire out no longer in detail here and state.
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 electrical connection of master controller 42 is from the control input end of controller 44.Host computer 41 is specially PLC, is the master control unit of whole synchronous control system.Perform rotating speed by host computer 41 pairs of master controllers 42 to control, host computer 41 is read the parameters such as the current speed from controller 44, frequency, torque, power, warning message to the communication from controller 44.Send torque instruction to from controller 44 by master controller 42, from controller 44 according to this instruction adjustment from the operating frequency of synchronous motor 21, allow master and slave motor share running load separately.Described master controller 42 and be preferably Multifunctional frequency converter (SINUSPENTA) from controller 44.
This case Shuan Qu mechanism drives traction sheave 3 by two groups of driving groups (main driving group 1 and from driving group 2) are common, guarantees two groups of driving group synchronous operations by synchronous control system 4.In work, when load changes, main driving group 1 and can the change of born the separately load of tracking in time from driving group 2, for load provides condition redistributing between main driving group.Concrete, the main synchronous motor 11 of main driving group 1 is as the criterion with speed, setting running speed, from driving group 2 from synchronous motor 21 based on torque, receive torque instruction that master controller 42 transmits to adjust accordingly by communication mode from controller 44.When load increases or reduce, main driving group 1 flows to and also correspondingly increases from the torque of driving group 2 or reduce, under the effect of torque PID, what regulate from driving group 2 is identical with the main synchronous motor 11 of main driving group 1 from synchronous motor 21 Driving Torque, rotating speed, thus make main synchronous motor 11 and respectively bear a half load from synchronous motor 21, 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, declines, each rising or the rough segmentation of decline process are bottom, middle part, three sections, top by we, this load of three sections is all not identical, and described main driving group 1 and main control closed-loop path all according to the change of load, can adjust the Driving Torque from driving group 2, accomplish load general goal energetically, load little go out little power, reduce idle work, also play energy-conserving action.
To sum up, this case oil pumper Shuan Qu mechanism carries out the improvement of innovation formula on Dan Qu mechanism basis, greatly extend the operational effectiveness of oil pumper, realize effect that one-plus-one equals two, the two pattern of driving of concrete this case is than the parameters of singly driving pattern, such as hang electric load, oil well depth, pull load etc., be correspondingly doubled.
The foregoing is only the preferred embodiments of the present invention, all equalizations done 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 (2)
1. an oil pumper Shuan Qu mechanism, is characterized in that: comprise the main driving group that is symmetrically set in main shaft two ends and from driving group; Described main driving group comprises the main synchronous motor, reductor and the shaft coupling that are in transmission connection successively, described from driving group comprise be in transmission connection successively from synchronous motor, reductor and shaft coupling, described main driving group and being connected in respectively the corresponding output shaft of described reductor and an end of described main shaft from shaft coupling described in two of driving group, this main shaft is arranged with traction sheave; 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 comprise host computer, master controller, from controller, main encoder and from encoder; Described main synchronous motor, master controller and main encoder are electrically connected to form a main closed control loop successively, described from synchronous motor, be electrically connected to form one successively from closed control loop from controller and 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 electrical connection of described master controller is from the control input end of controller.
2. a kind of oil pumper Shuan Qu mechanism as claimed in claim 1, is characterized in that: described main synchronous motor and from synchronous motor for being permagnetic synchronous motor, described reductor is planetary reducer, and described shaft coupling is snakelike shaft coupling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310350636.4A CN103410479B (en) | 2013-08-13 | 2013-08-13 | A kind of oil pumper Shuan Qu mechanism |
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| CN201310350636.4A CN103410479B (en) | 2013-08-13 | 2013-08-13 | A kind of oil pumper Shuan Qu mechanism |
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| CN103410479B true CN103410479B (en) | 2016-02-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN108127805B (en) * | 2017-12-25 | 2020-11-27 | 宿迁市创盈知识产权服务有限公司 | PVC pipe cooling and mixing device |
Citations (5)
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|---|---|---|---|---|
| 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 |
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