CN103986304A - Special permanent magnet transmission device for oil fields - Google Patents
Special permanent magnet transmission device for oil fields Download PDFInfo
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- CN103986304A CN103986304A CN201310048724.9A CN201310048724A CN103986304A CN 103986304 A CN103986304 A CN 103986304A CN 201310048724 A CN201310048724 A CN 201310048724A CN 103986304 A CN103986304 A CN 103986304A
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- permanent magnet
- motor
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- input shaft
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Abstract
The invention provides a special permanent magnet transmission device for oil fields and relates to the field of oil production mechanical equipment. A belt pulley is fixed on a motor input shaft. A permanent magnet rotor and the belt pulley are sequentially fixed on the motor input shaft, an external gap of the permanent magnet rotor is sleeved with a conductor rotor, and the conductor rotor is positioned on the motor input shaft and connected with the belt pulley. The permanent magnet rotor is fixed with the motor input shaft through a first bolt, and the conductor rotor is fixed with a bearing block module on the output side of the motor input shaft through a screw. According to the special permanent magnet transmission device for the oil fields, a permanent magnet driver has a buffering starting function, impulse current time is short during the starting, the impact to a power grid is small, and energy consumption is greatly reduced during the starting. The impact to large machines such as a motor, a gearbox and a pumping unit is reduced, and service lives of related devices are prolonged. The power factor of the motor can be greatly improved in work, power grid and voltage transformation burden is reduced, line loss is reduced, and reactive power loss is reduced greatly.
Description
Technical field
The present invention relates to oil extraction in oil field plant equipment field, relate in particular to the special permanent magnetic transmission device in oil field.
Background technology
At present, the recoverable amount of China's oil pumper is more than 100,000, and motor installation total capacity is at 3500MW, and annual power consumption exceedes 10,000,000,000 kWh.Oil pumper is oil field big power consumer, and power consumption accounts for 40% of oil field total electricity consumption, and the operational efficiency of oil pumper is low especially, causes the grid electricity fee cost of oil mining high, and energy waste is very serious.Be 25.96% in China's average efficiency, and external average level is 30.05%, a year energy-saving potential can reach tens kWh.So petroleum industry is attached great importance to saves energy.
At present, oil pumper is one of capital equipment of oil field electricity consumption, is a kind of plunger displacement pump, be the permanent torque loads of periodically pulsing, and superposition has the impact of moment to motor.On the load curve of pumping-unit motor, there are two peak values, are respectively " dead point " of oil pumper up-down stroke.While restarting after oil pumper free parking, always start from dead point, therefore pumping-unit motor requires detent torque large.In order to ensure enough large detent torque, in the time of apolegamy pumping-unit motor, always select the motor of large specification, can only be low load with strong power.When pumping-unit motor normally moves, load factor is very low, generally in 20% left and right, load factor high only 30%.The operation of underload rate causes power factor low, and efficiency is low, and waste of energy is serious.
Summary of the invention
The present invention is intended to for the deficiency existing in background technology, and the special permanent magnetic transmission device in a kind of oil field providing.
The special permanent magnetic transmission device in oil field of the present invention, to have fixed belt pulley on motor power shaft, on motor power shaft, fixed successively p-m rotor and belt pulley, at the outer gap covering device of p-m rotor conductor rotor, conductor rotor seat is connected on motor power shaft and with belt pulley.
As a further improvement on the present invention, between conductor rotor and p-m rotor, leave gap.
As a further improvement on the present invention, p-m rotor and motor power shaft are fixed by bolt I.
As a further improvement on the present invention, the outlet side bearing block assembly of conductor rotor and motor power shaft is fixed by screw.
As a further improvement on the present invention, on the bearing of motor power shaft, be provided with dust cap.
The special permanent magnetic transmission device in oil field of the present invention, magnetic actuator has buffer starting function, when starting the impulse current time short, to electrical network impact little, when starting, energy consumption greatly reduces.Reduce the impact to the large machinery such as motor, gearbox, oil pumper simultaneously, extended the useful life of relevant device.The power factor of motor can significantly improve at work, alleviates the burden of electrical network and transformation, reduces line loss, has reduced in a large number reactive loss.
The special permanent magnetic transmission device in oil field of the present invention, device structure is simple, failure rate is low, maintenance cost is low, reliability is high, long service life, easy for installation, do not need oil pumper to do any transformation, just can on existing oil pumper, directly install and use, greatly simplify Installation and Debugging process, produced hardly construction cost.User, as long as original belt pulley on motor is pulled down, is installed to magnetic actuator on motor.
The special permanent magnetic transmission device in oil field of the present invention is mechanical device, almost irrelevant with electric power, in the time that power quality is very poor, as voltage fluctuation, electric harmonic, flickering, fall, short time power-off, thunderbolt, surge etc., these factors are fatal often to electronics or electric device.Adopt magnetic actuator neither can cause damage because of power quality, also can not cause shutdown.Magnetic actuator is adjusted the moment of torsion of transmission automatically with slippage, load torque more large-slip is larger, in the time that oil pumper discharge capacity is superfluous, automatic releasing large-slip is reduced to pump amount, otherwise when descending because do not have mechanical linkages to alleviate potential load situation, can realize the upper and lower stroke of equipment identifies automatically, thereby the motor running load characteristic of controlling the upper and lower stroke of oil pumper, significantly improves power factor (PF).Due to oil pumper when descending load characteristic be potential load, at the scene in application, by realizing speed uplink and be slower than the comparatively ideal operation mode of downstream rate, in the coefficient of fullness that has improved pump, also improved pump efficiency, thereby improved oil production.
Brief description of the drawings
Fig. 1 is longitudinal sectional view of the present invention.
Embodiment
, be described further the special permanent magnetic transmission device in oil field of the present invention below in conjunction with accompanying drawing 1:
The special permanent magnetic transmission device in oil field of the present invention, is on motor power shaft 1, to have fixed successively p-m rotor 3 and belt pulley 2, at the outer gap covering device of p-m rotor 3 conductor rotor 4,4 of conductor rotor are connected on motor power shaft 1 and with belt pulley 2.
In this device, p-m rotor 3 and motor power shaft 1 are fixing by bolt I 5; The outlet side bearing block assembly 7 of conductor rotor 4 and motor power shaft 1 is fixing by screw 10; The outlet side bearing block assembly 7 of belt pulley 2 and motor power shaft 1 is fixing by bolt II 6.On the bearing 8 of motor power shaft 1, be provided with dust cap 9; Be provided with nut 12 in the termination of motor power shaft 1.
Magnetic actuator is mainly made up of conductor rotor, p-m rotor two parts.P-m rotor is fixed on motor power shaft, and also seat is on motor shaft by a passive bearing for conductor rotor, and conductor rotor is connected with belt pulley one.Between conductor rotor 4 and p-m rotor 3, leave gap 11, be called air gap, motor and load change soft (magnetic) link into by original hard (machinery) link like this, realize by motor the torque transfer to load by the air gap between conductor and permanent magnet.That is to say, the output speed of magnetic actuator is all little than input speed all the time, and speed discrepancy is called slippage.In typical case, in the time that motor completely turns, the slippage of magnetic actuator is between 1%-4%.
The special permanent magnetic transmission device in oil field of the present invention is to realize by motor to the torque transfer of loading with by the air gap between conductor and permanent magnet, between motor and load, there is no mechanical attachment, automatically adjust the moment of torsion of transmission with slippage, there is soft start function, permission empty load of motor starts, not only reduce the starting current of motor and reduced thermal shock load and the impact on electrical network on motor, thereby saves energy the working life that extends motor, and the destructive tension force of drive system to transportation rubber belt while very effectively having reduced to start, eliminate the vibration producing when conveyer starts, can also significantly alleviate the suffered startup of drive system itself impacts, extend adhesive tape, the useful life of the critical components such as carrying roller, ensure the safe and reliable operation of equipment, effectively reduced maintenance of equipment and fault time cost.
Claims (5)
1. the special permanent magnetic transmission device in oil field, on motor power shaft (1), to have fixed belt pulley (2), it is characterized in that having fixed successively p-m rotor (3) and belt pulley (2) on motor power shaft (1), at the outer gap covering device of p-m rotor (3) conductor rotor (4), conductor rotor (4) seat is upper and be connected with belt pulley (2) in motor power shaft (1).
2. the special permanent magnetic transmission device in oil field as claimed in claim 1, is characterized in that leaving gap (11) between conductor rotor (4) and p-m rotor (3).
3. the special permanent magnetic transmission device in oil field as claimed in claim 1, is characterized in that p-m rotor (3) and motor power shaft (1) are fixing by bolt I (5).
4. the special permanent magnetic transmission device in oil field as claimed in claim 1, is characterized in that the outlet side bearing block assembly (7) of conductor rotor (4) and motor power shaft (1) is fixing by screw (10).
5. the special permanent magnetic transmission device in oil field as claimed in claim 1, is characterized in that being provided with dust cap (9) on the bearing (8) of motor power shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048724.9A CN103986304A (en) | 2013-02-07 | 2013-02-07 | Special permanent magnet transmission device for oil fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048724.9A CN103986304A (en) | 2013-02-07 | 2013-02-07 | Special permanent magnet transmission device for oil fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103986304A true CN103986304A (en) | 2014-08-13 |
Family
ID=51278162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310048724.9A Pending CN103986304A (en) | 2013-02-07 | 2013-02-07 | Special permanent magnet transmission device for oil fields |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103986304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782383A (en) * | 2016-05-19 | 2016-07-20 | 上海市东方海事工程技术有限公司 | Permanent magnet transmission device of pumping unit and pumping unit |
| CN110729874A (en) * | 2019-11-21 | 2020-01-24 | 南京玛格耐特智能科技有限公司 | Device for cooling, vibration damping and impact reduction of high-temperature slab grinding machine |
-
2013
- 2013-02-07 CN CN201310048724.9A patent/CN103986304A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782383A (en) * | 2016-05-19 | 2016-07-20 | 上海市东方海事工程技术有限公司 | Permanent magnet transmission device of pumping unit and pumping unit |
| CN110729874A (en) * | 2019-11-21 | 2020-01-24 | 南京玛格耐特智能科技有限公司 | Device for cooling, vibration damping and impact reduction of high-temperature slab grinding machine |
| CN110729874B (en) * | 2019-11-21 | 2024-05-14 | 南京玛格耐特智能科技有限公司 | Device for reducing temperature, vibration and impact of high-temperature slab sharpening machine |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |