CN101046145A - Pumping unit - Google Patents
Pumping unit Download PDFInfo
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- CN101046145A CN101046145A CN 200710097714 CN200710097714A CN101046145A CN 101046145 A CN101046145 A CN 101046145A CN 200710097714 CN200710097714 CN 200710097714 CN 200710097714 A CN200710097714 A CN 200710097714A CN 101046145 A CN101046145 A CN 101046145A
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- rope
- oil pumper
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Abstract
The pumping unit includes a main frame, a support on the frame, a motor mounted on one platform in the support, a brake mounted on the motor, a control device connected to the motor and the brake and outputting voltage in set frequency to the motor, a drive device connected between the motor output shaft and the drive shaft, a pumping rod, a polished rod eye, a balance weight, a driving shaft mounted on the support, a driving rope to connect the pumping rod and the polished rod eye to the balance weight, a driving wheel mounted on the driving shaft, a winch set on the support and connected to the balance weight, and a hoist rope. The present invention elevates the balance weight with the winch, rather than directly with the motor, and can lower the power of the motor obviously.
Description
Technical field
The present invention relates to extracting device of oil, relate in particular to a kind of oil pumper.
Background technology
In present oil pumping machinery, some oil pumper adopts the counterweight and the mode of the mechanism's symmetrical balance of pumping to carry out work, when this class oil pumper is installed or keep in repair, counterweight need be promoted to higher position usually.
Application number is that 200410011020.5 patent application " oil pumping workover rig " discloses a kind of oil pumping machinery, and this oil pumping workover rig comprises parts such as main frame, electrical control cubicles, counterweight, polished rod eye, oil pumping polish rod, motor, pinion, gear wheel, head sheave and reduction box.Motor arrives head sheave by reduction box with transmission of torque, drives the head sheave rotation, and then finishes pumping of sucker rod.Wherein, sucker rod rope one end connects polished rod eye, and the other end is fixed on the wheel of head sheave on week, and the top of counterweight is provided with the lanyard device, and counterweight rope one end connects the lanyard device, and symmetry is fixed on the wheel of head sheave on week before and after the other end and the sucker rod rope.When promoting counterweight if desired in the installation of above-mentioned oil pumping workover rig or maintenance, the lift rope that needs the electricity consumption machine travel to be connected with counterweight could be mentioned counterweight.
Because the quality of counterweight has several tons usually, therefore need the power output of motor very big, and motor only need less relatively power output usually when pumping operation normally, therefore, caused the waste of power of motor.
Summary of the invention
At the defective that prior art exists, the purpose of this invention is to provide the pump oil pumper of operation of a kind of needs employing low-power machine.
Oil pumper provided by the invention comprises main frame, support, motor, brake, control device, transmission device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, hoist engine and lift rope, wherein, support is positioned at the main frame top, described support has platform, described motor is installed on the platform of support, and described brake is installed on the motor; Described control device is connected with motor and brake, and exports the voltage of setpoint frequency to motor; Described driving shaft is rack-mount, and described driving wheel is installed on the described driving shaft, and described sucker rod is connected with counterweight by driving rope with polished rod eye, and described driving rope is walked around driving wheel; One end of described transmission device is connected with the output shaft of motor, and the other end is connected with driving shaft; Described hoist engine is arranged on the platform of support, and hoist engine is connected with counterweight by linkage.
Preferably, described transmission device comprises first belt pulley, second belt pulley and belt, wherein, first belt pulley is installed on the output shaft of described motor, second belt pulley is installed on the described driving shaft, described belt connects described first belt pulley and second belt pulley, and the output torque of described motor is more than or equal to G, and G defines by following formula:
(2 * K), wherein, P is the tractive force of motor output to G=P * D/, and D is the driving wheel diameter, and K is second diameter pulley and the ratio of first diameter pulley, and P is 3000N to 50000N.
Preferably, described transmission device comprises first sprocket wheel, second sprocket wheel and chain, wherein, first sprocket wheel is installed on the output shaft of described motor, second sprocket wheel is installed on the described driving shaft, described chain connects described first sprocket wheel and second sprocket wheel, and the output torque of described motor is more than or equal to G, and G defines by following formula:
(2 * K), wherein, P is the tractive force of motor output to G=P * D/, and D is the driving wheel diameter, and K is second sprocket diameter and the ratio of first sprocket diameter, and P is 3000N to 50000N.
Preferably, described motor is a permagnetic synchronous motor.
Preferably, the rated speed of described motor is more than or equal to n, and n defines by following formula:
(π * D), wherein, L is a rod stroke to n=2 * L * S * K/, and S is the sucker rod jig frequency, and K is 0-10, and driving wheel diameter D is 0.2m-1.5m.
Preferably, this oil pumper also comprises position-measurement device, and described position-measurement device is installed on the output shaft of driving shaft or motor, and is connected with described control device.
Preferably, described main frame is a tubular construction.
Preferably, described linkage comprises lift rope, fixed pulley, movable pulley and lift rope fixator, wherein movable pulley is connected with counterweight, and an end of lift rope is connected with hoist engine, and the other end of lift rope walks around fixed pulley and movable pulley is connected on the lift rope fixator.
Preferably, described driving rope is also walked around guiding device, and described guiding device is installed on the platform of support.
Preferably, this oil pumper also comprises safety rope, and described safety rope is connected between counterweight and the driving wheel.
When oil pumper is installed and during maintenance, is promoted counterweight by adopting hoist engine of the present invention, compare when directly promoting counterweight with main motor, can obviously reduce the power of main motor.And hoist engine not only can promote counterweight, can also use as crane when workover treatment.
Description of drawings
Fig. 1 is the structural representation with oil pumper of hoist engine of the present invention;
Fig. 2 is the left view of oil pumper shown in Figure 1;
Fig. 3 is the vertical view of oil pumper shown in Figure 1.
The specific embodiment
Below, further specify oil pumper provided by the present invention in conjunction with the accompanying drawings, but therefore the present invention is not subjected to any restriction.
As shown in Figure 1, 2, 3, a kind of oil pumper is provided in one embodiment of the invention, and this oil pumper comprises main frame 1, support 8, motor 10, brake 11, control device 9, sucker rod 4, polished rod eye 21, counterweight 14, driving shaft 30, drives rope 18, driving wheel 29, hoist engine 28 and lift rope 20 and transmission device.Wherein, main frame 1 top has support 8, and support 8 has platform, and described driving shaft 30 is installed on the support 8, described driving wheel 29 is installed on the described driving shaft 30, and described sucker rod 4 is connected with counterweight 14 by the driving rope 18 of walking around driving wheel 29 with polished rod eye 21.
Can adopt the form of electrical control cubicles 9 at control device described in the invention, in electrical control cubicles 9, be provided with electrical parts such as frequency converter, programmable logic controller (PLC), brake unit, display unit usually.Usually, the device that voltage and the constant alternating current of fixed-frequency are transformed to the alternating current of voltage or changeable frequency is called frequency converter.The frequency converter that is used for Electric Machine Control both can change voltage, also can change frequency.The output of frequency converter is connected with motor 10, and motor 10 is worked under certain frequency, voltage.PLC and other industrial computer (as single-chip microcomputer etc.) can be realized the further control to frequency converter.Display unit can provide the interface that can carry out man-machine interaction for the user.In the present embodiment, by the Artificial Control that the electrically controlled manipulation dish 3 that is connected to control device is realized oil pumper, described electrically controlled manipulation dish 3 is positioned at the position that operating personnel are convenient to control, and for example is positioned on the security door 2.
Described motor 10 is installed on the platform of support 8, and brake 11 is installed on the motor 10, and described brake 11 makes the motor stall under the control of control device 9.10 in motor is used for providing torque and power in oil pumping process, and the independent lifting of not responsible counterweight 14, so parameters such as the torque of motor 10, power only need satisfy the needs that can adapt to 4 motions of drive sucker rod.When oil pumping machine oil pumping, motor 10 is clocklike positive and negative rotation under the control of electrical control cubicles 9, by transmission device, the driving rope 18 on driving wheel 29 drives counterweight 14 and sucker rod 4 upper and lower reciprocating motions, extracts fluid thereby make sucker rod 4 drive oil well pump.
Installation or maintenance period at oil pumper promote lifting to counterweight 14 if desired, then need to finish by hoist engine 28.As shown in Figure 2, hoist engine 28 also is installed on the platform of support 8.Hoist engine 28 can also can draw counterweight 14 directly by lift rope 20 traction counterweights 14 by other linkage, for example in the present embodiment, by assembly pulley traction counterweight 14, can save tractive force by assembly pulley traction counterweight.As shown in Figure 1, an end of lift rope 20 is connected the output of hoist engine 28, and lift rope 20 is walked around fixed pulley 26, walk around movable pulley 19 again after, the other end is fixed on the lift rope fixator 25.When oil pumper is installed or keep in repair, the hook on the movable pulley 19 is suspended on the counterweight 14, by handling electrically controlled manipulation dish 3, hoist engine 28 is started, thereby can promote counterweight 14.Compare with the mode that directly promotes ballast box 14 with motor 10, use hoist engine 28 to promote the use power that counterweight 14 can reduce motor 10 greatly.And hoist engine 28 can not only promote counterweight, also can work as crane when well workover.
In the present embodiment, guiding device is installed also on the platform of support 8, described guiding device comprises: directive wheel 34, guide wheel shaft 35, guiding wheel carrier 6, bloster hinge chain rivet 32 and directive wheel bearing 36.Guiding wheel carrier 6 is fixed on the platform of support 8 by bloster hinge chain rivet 32.Directive wheel 34 is fixed on the guide wheel shaft 35, and guide wheel shaft 35 is installed on the guiding wheel carrier 6 by directive wheel bearing 36.An end that drives rope 18 connects counterweight 14, and the other end strides across linking to each other with polished rod eye 21 in wheel week of directive wheel 34 after walking around driving wheel 29, and polished rod eye 21 links to each other with sucker rod 4.The setting of guiding device makes and has kept a segment distance between oil pumper and the oil well, therefore by packing up guiding device and oil pumping mechanism (for example passing through) around bloster hinge chain rivet 32 rotary steering wheel carriers 6, can reserve enough maintenance activity spaces for workover, and need not whole mobile oil pumper.In a further embodiment, above-mentioned guiding device can be set, driving rope 18 is only walked around driving wheel and is connected oil pumping mechanism and counterweight 14 respectively, and these embodiment still are applicable to oil pumper of the present invention.
Preferably, between counterweight 14 and driving wheel 29, be connected with safety rope 16.One end of safety rope 16 is fixed on the driving wheel 29, the other end is connected on the counterweight 14, when sucker rod 4 disconnects, counterweight 14 tenesmus, counterweight 14 drives safety rope 16 and makes driving wheel 29 high speed rotating, thereby motor 10 produces overload, this moment, the brake 11 of motor 10 braked under the effect of electrical control cubicles 9, safety rope 16 tension counterweights 14, counterweight 14 can not freely be fallen, thereby can avoid producing the bump accident.
Preferably, transmission device is realized by belt drive unit in the present embodiment.Particularly, comprise first belt pulley 22, second belt pulley 24, belt 23.Wherein, be coaxially installed with first belt pulley 22 on the output shaft of motor 10, as shown in Figure 1, the diameter of first belt pulley 22 is less.The driving shaft 30 of oil pumper is installed on the support 8 by bearing 31, is coaxially installed with second belt pulley 24 and driving wheel 29, the second belt pulleys 24 and has the diameter bigger than first belt pulley 22 on driving shaft 30.First belt pulley 22 links to each other by belt 23 with second belt pulley 24.Because second belt pulley 24 is fixed on (for example by interference fit or key connecting) on the driving shaft 30, belt 23 can be delivered to driving shaft 30 with the output torque and the rotating speed of motor 10.For example, when the diameter of second belt pulley 24 was 2 times of first belt pulley, 22 diameters, the torque that then outputs on second belt pulley 24 was the twice of motor 10 output torques, and the rotating speed that outputs on second belt pulley 24 is 1/2nd of motor 10 output speeds.
In the embodiment shown in fig. 1, oil pumper adopts one-level bel-drivenn mode, is appreciated that the present invention can take multiple belt transmissioning mode, for example adopts the kind of drive of multi-stage, belt, preferably can adopt the kind of drive of two-stage belt.And, increasing in order to make the output torque, the diameter of drive pulley is less than the diameter of driven pulley.And in order to drive bigger load, belt can for example can be installed 6-8 root belt for parallel many of installing between first belt pulley 22 and second belt pulley 24.Belt 23 can adopt various suitable belts, and as V-belt, cog belt etc., preferably, in order to prolong the life-span of belt 23 transmission, belt 23 is selected the V-belt for use.
Under the situation that adopts above-mentioned belt drive unit, motor 10 can select for use all can satisfy the motor of oil pumper operating mode.For the selection of the parameter of electric machine, particularly, the specified output torque of motor should be more than or equal to G, and (2 * K), wherein, P is the tractive force of motor output to G=P * D/, and D is the driving wheel diameter, and K is second diameter pulley and the ratio of first diameter pulley.Wherein, tractive force P equals gravity poor after sucker rod 4 and counterweight 14 balances, also comprises the resistance that is produced in the oil pumping operation.Tractive force P is different and different according to oil well depth and hole condition.When the oil pumper design of present embodiment, the tractive force P of motor output is 3000N to 50000N.Simultaneously, the rotating speed of described motor 10 more preferably greater than or equal n, (π * D), wherein, L is a rod stroke to n=2 * L * S * K/, and S is the sucker rod jig frequency.In the design of gearless transmission oil pumping machine, K is preferably 0-10, and driving wheel diameter D is preferably 0.2m-1.5m.
The transmission device that the present invention adopts also can adopt another embodiment, in this embodiment, replaces belt transmissioning mode with sprocket wheel chain mode.Particularly, described transmission device comprises first sprocket wheel, second sprocket wheel and chain.Wherein, be coaxially installed with first sprocket wheel on the output shaft of motor 10, the diameter of first sprocket wheel is less.The driving shaft 30 of oil pumper is installed on the support 8 by bearing 31, is coaxially installed with second sprocket wheel and driving wheel 29, the second sprocket wheels have the diameter bigger than first sprocket wheel on driving shaft 30.First sprocket wheel links to each other by chain with second sprocket wheel.Because second sprocket wheel is fixed on (for example by interference fit or key connecting) on the driving shaft 30, chain can be delivered to driving shaft 30 with the output torque and the rotating speed of motor 10.
In the present embodiment, preferably, motor 10 adopts permagnetic synchronous motors, selects more preferably that output torque 300Nm is above for use, power output 5-45Kw, the permagnetic synchronous motor of rotating speed below 500rpm.In the present embodiment, adopt specified output torque 800Nm, rated output power 8kw, the permagnetic synchronous motor of rated speed 85rpm.This is because permagnetic synchronous motor more can satisfy big torque, slow-revving job requirement, not only helps energy conservation, more can avoid the noise that pot motor when work produce, and has further reduced the operating noise of oil pumper integral body.
After the desired depth that sucker rod 4 arrives oil well is finished oil recovery, sucker rod 4 need be mentioned, therefore need to realize the backward rotation of driving wheel 29, promptly realize the backward rotation of motor 10.Preferably, adopt the backward rotation of position-measurement device control motor 10.In the present embodiment, adopt counting scale and near switch as position-measurement device.Counting scale is coaxial to be fixed on the driving shaft 30, on the platform of support 8, and and counting scale between leave less gap the place be provided with near switch.And be magnetic switch near switch.In the impulse stroke of sucker rod 4, near switch the revolution of driving shaft is counted, when reaching predetermined number of revolutions, send signal to control device near switch, make 10 counter-rotatings of control device control motor.
Selectively, above-mentioned position-measurement device also can be arranged on other positions of oil pumper, for example, can be arranged on the output shaft of motor 10.And position-measurement device also is not limited to said counting dish/near switch, and other position-measurement devices that are fit to can adopt, for example photoelectric encoder or the like.
Because oil pumper of the present invention uses in the bigger environment of wind-force usually, therefore in order to improve capability of anti-wind, preferably, main frame 1 is made core structure, this core structure is the hemi-closure space that the upper and lower part ventilates.And this core structure is preferably cylinder mode, thereby makes the columniform counterweight 14 that is positioned at this drum type brake framework can not be subjected to wind-force normally operation up and down intrusively, and this has obviously improved oil pumper reliability of operation and safety.
Preferably, for convenience technician's main frame 1 up and down also is provided with staircase 5 on the main frame 1, and main frame 1 bottom is provided with security door 2, and is stolen with the oil pumper parts that prevent main frame 1 inside.Security door 2 back sides are provided with electrically controlled manipulation dish 3, can control automatically controlled device in the whole electrical control cubicles 9 by this electrically controlled manipulation dish 3 operating personnel.
Although the present invention is described by above-mentioned preferred embodiment, its way of realization is not limited to above-mentioned embodiment.Should be realized that under the situation that does not break away from purport of the present invention those skilled in the art can make different variations and modification to the present invention.
Claims (10)
1, a kind of oil pumper, it is characterized in that, comprise main frame, support, motor, brake, control device, transmission device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, hoist engine and lift rope, wherein, support is positioned at the main frame top, described support has platform, and described motor is installed on the platform of support, and described brake is installed on the motor; Described control device is connected with motor and brake, and exports the voltage of setpoint frequency to motor; Described driving shaft is rack-mount, and described driving wheel is installed on the described driving shaft, and described sucker rod is connected with counterweight by driving rope with polished rod eye, and described driving rope is walked around driving wheel; One end of described transmission device is connected with the output shaft of motor, and the other end is connected with driving shaft; Described hoist engine is arranged on the platform of support, and hoist engine is connected with counterweight by linkage.
2, oil pumper according to claim 1, it is characterized in that, described transmission device comprises first belt pulley, second belt pulley and belt, wherein, first belt pulley is installed on the output shaft of described motor, and second belt pulley is installed on the described driving shaft, and described belt connects described first belt pulley and second belt pulley, the output torque of described motor is more than or equal to G, and G defines by following formula:
(2 * K), wherein, P is the tractive force of motor output to G=P * D/, and D is the driving wheel diameter, and K is second diameter pulley and the ratio of first diameter pulley, and P is 3000N to 50000N.
3, oil pumper according to claim 1, it is characterized in that, described transmission device comprises first sprocket wheel, second sprocket wheel and chain, wherein, first sprocket wheel is installed on the output shaft of described motor, second sprocket wheel is installed on the described driving shaft, described chain connects described first sprocket wheel and second sprocket wheel, the output torque of described motor is more than or equal to G, and G defines by following formula:
(2 * K), wherein, P is the tractive force of motor output to G=P * D/, and D is the driving wheel diameter, and K is second sprocket diameter and the ratio of first sprocket diameter, and P is 3000N to 50000N.
According to claim 2 or 3 described oil pumpers, it is characterized in that 4, described motor is a permagnetic synchronous motor.
5, according to claim 2 or 3 described oil pumpers, it is characterized in that the rated speed of described motor is more than or equal to n, n defines by following formula:
(π * D), wherein, L is a rod stroke to n=2 * L * S * K/, and S is the sucker rod jig frequency, and K is 0-10, and driving wheel diameter D is 0.2m-1.5m.
6, oil pumper according to claim 1 is characterized in that, this oil pumper also comprises position-measurement device, and described position-measurement device is installed on the output shaft of driving shaft or motor, and is connected with described control device.
7, oil pumper according to claim 1 is characterized in that, described main frame is a tubular construction.
8, oil pumper according to claim 1, it is characterized in that, described linkage comprises lift rope, fixed pulley, movable pulley and lift rope fixator, wherein movable pulley is connected with counterweight, one end of lift rope is connected with hoist engine, and the other end of lift rope walks around fixed pulley and movable pulley is connected on the lift rope fixator.
9, oil pumper according to claim 1 is characterized in that, described driving rope is also walked around guiding device, and described guiding device is installed on the platform of support.
10, oil pumper according to claim 1 is characterized in that, this oil pumper also comprises safety rope, and described safety rope is connected between counterweight and the driving wheel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710097714 CN101046145A (en) | 2007-04-28 | 2007-04-28 | Pumping unit |
| PCT/CN2007/002347 WO2008131610A1 (en) | 2007-04-26 | 2007-08-06 | Pumping nuiit without gear driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710097714 CN101046145A (en) | 2007-04-28 | 2007-04-28 | Pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101046145A true CN101046145A (en) | 2007-10-03 |
Family
ID=38771029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710097714 Pending CN101046145A (en) | 2007-04-26 | 2007-04-28 | Pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101046145A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413387B (en) * | 2008-12-03 | 2011-11-23 | 毛宏伟 | Tower rack type combined transmission oil pumping machine |
| CN105545256A (en) * | 2016-01-22 | 2016-05-04 | 金成群 | Balance type tower oil pumping machine |
| CN116591642A (en) * | 2023-05-22 | 2023-08-15 | 东营市金亿来石油机械有限公司 | Vertical pumping unit for petroleum exploitation |
-
2007
- 2007-04-28 CN CN 200710097714 patent/CN101046145A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413387B (en) * | 2008-12-03 | 2011-11-23 | 毛宏伟 | Tower rack type combined transmission oil pumping machine |
| CN105545256A (en) * | 2016-01-22 | 2016-05-04 | 金成群 | Balance type tower oil pumping machine |
| CN116591642A (en) * | 2023-05-22 | 2023-08-15 | 东营市金亿来石油机械有限公司 | Vertical pumping unit for petroleum exploitation |
| CN116591642B (en) * | 2023-05-22 | 2023-11-24 | 东营市金亿来石油机械有限公司 | Vertical pumping unit for petroleum exploitation |
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Open date: 20071003 |