CN201050470Y - Gearless transmission oil pumping unit - Google Patents
Gearless transmission oil pumping unit Download PDFInfo
- Publication number
- CN201050470Y CN201050470Y CNU2007201476843U CN200720147684U CN201050470Y CN 201050470 Y CN201050470 Y CN 201050470Y CN U2007201476843 U CNU2007201476843 U CN U2007201476843U CN 200720147684 U CN200720147684 U CN 200720147684U CN 201050470 Y CN201050470 Y CN 201050470Y
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- motor
- oil pumping
- driving wheel
- rope
- transmission oil
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Abstract
The utility model discloses a gearless driving oil pumping unit, which comprises a bracket, an electric motor, an arrester, a controlling device, a sucker rod, a rope hanging device, a balance weight, a drive shaft, a drive rope, a driving wheel, a first belt pulley, a second belt pulley and a belt. The electric motor is arranged on the bracket; the arrester is arranged on the electric motor; the controlling device which is connected with the electric motor and the arrester outputs pressure with setting frequency; the drive shaft is arranged on the bracket; the driving wheel is arranged on the drive shaft; the sucker rod and the rope hanging device are connected with the balance weight by drive rope rounding the driving wheel; an output shaft of the electric motor is provided with the first belt pulley; the drive shaft is provided with the second belt pulley; the belt is connected with the first belt pulley and the second belt pulley, thereby greatly simplifying the processing hardness, decreasing the driving noisy, solving the problem of oil leak, and greatly reducing the manufacture cost.
Description
Technical field
The utility model relates to extracting device of oil, relates in particular to a kind of gearless transmission oil pumping machine.
Background technique
Pumping unit belongs to petroleum production machinery, and at present, pumping unit is usually by the motor direction operation, and by transmission device, promptly gear reducer drives sucker rod and pumps, thereby pumps operation.
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, electric control cubicle, counterweight, rope hanger, oil pumping polish rod, motor, small gear, gearwheel, head sheave and speed reducer.Oil pumping polish rod links to each other with rope hanger, and motor is connected with speed reducer through coupling, and gearwheel and head sheave and elevator wheel interfix, and by Bearing Installation on the sky wheel shaft, it wheel shaft is fastening with sky wheel shaft fastener.When oil pumping work, motor drives the speed reducer running by coupling, small gear that links to each other with reduction gearbox output shaft and gearwheel engagement, thus make the forward and reverse regularly rotation of the head sheave that tightens together with gearwheel, drive sucker rod and pump.
In above-mentioned oil pumping workover rig, motor arrives head sheave by speed reducer with transmission of torque, the rotation of drive head sheave, and then finish pumping of sucker rod, but because the drive gear mechanism manufacture difficulty is big in the retarder, manufacture cost is also higher, and the running of meshing between gear that is in operation can produce very big noise, also often appearance of the phenomenon of leakage of oil from speed reducer.Therefore, be necessary to develop a kind of new pumping unit, overcome above deficiency.
The model utility content
The purpose of this utility model provides a kind of simple in structure, the operation little no leakage of oil problem of noise and pumping unit with low cost.
The disclosed gearless transmission oil pumping machine of the utility model comprises support, motor, break, control gear, sucker rod, rope hanger, counterweight, live axle, driving rope, driving wheel, first belt pulley, second belt pulley and belt; Wherein, described motor is rack-mount, and described break is installed on the motor; Described control gear is connected with motor and break, and exports the voltage of setpoint frequency to motor; Described live axle is rack-mount, described driving wheel is installed on the described live axle, described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with rope hanger, first belt pulley is installed on the output shaft of described motor, second belt pulley is installed on the described live axle, described belt connects described first belt pulley and second belt pulley, and the specified 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.Preferably, it is characterized in that P is 5880N to 29400N.Preferably, described motor is a permagnetic synchronous motor.
Preferably, described rotating speed of 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 0.3m-1.2m.
Preferably, described gearless transmission oil pumping machine also comprises position-measurement device, described position-measurement device comprises counting scale and near switch, described counting scale is installed on the output shaft of live axle or motor, and the described of count pick up dish position signal is connected with described control gear near switch.
Preferably, described gearless transmission oil pumping machine also comprises position-measurement device, and described position-measurement device is a photoelectric encoder, and described photoelectric encoder is installed on the output shaft of live axle or motor, and is connected with control gear.
Preferably, described gearless transmission oil pumping machine also comprises lift rope, and an end and the counterweight of described lift rope is fastenedly connected, the other end and driving wheel are fastenedly connected.
Preferably, this pumping unit base of frame is provided with and adjusts jackscrew and roller.
Preferably, described gearless transmission oil pumping machine also comprises the guide mechanism that is used to keep the counterweight vertical motion, and described guide mechanism is installed on the counterweight, and described counterweight moves along guide mechanism.
The utility model also provides a kind of gearless transmission oil pumping machine, comprises support, motor, break, control gear, sucker rod, rope hanger, counterweight, live axle, driving rope, driving wheel, first sprocket wheel, second sprocket wheel and chain; Described motor is rack-mount, and described break is installed on the motor; Described control gear is connected with motor, and exports the voltage of setpoint frequency to motor; Described live axle is rack-mount, and described driving wheel is installed on the described live axle, and described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with rope hanger; First sprocket wheel is installed on the output shaft of described motor, second sprocket wheel is installed on the described live axle, described chain connects described first sprocket wheel and second sprocket wheel; The specified 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.
Compared with prior art, because pumping unit described in the utility model has been taked the design of gearless gearbox, greatly reduce difficulty of processing and manufacture cost.Owing to adopt belt transmission, thereby the transmission noise is obviously reduced, operating noise is less than 55db usually.Owing to the non-gear box structure has solved the leakage of oil problem.Its simple structure also makes manufacture cost reduce greatly.
Description of drawings
Fig. 1 is the structural representation of a kind of gearless transmission oil pumping machine of the utility model embodiment;
Fig. 2 is the left view of gearless transmission oil pumping machine shown in Figure 1.
Embodiment
Further specify gearless transmission oil pumping machine provided by the utility model below in conjunction with accompanying drawing, but therefore the utility model is not subjected to any restriction.
As shown in Figure 1 and Figure 2, this pumping unit comprises oil pumping mechanism, counterweight 4, rack-mount live axle 18, is installed in the driving wheel 19 on the described live axle, and described oil pumping mechanism is connected by the driving rope 16 of walking around driving wheel with counterweight.The mechanism that wherein pumps comprises sucker rod 13, rope hanger 14.Described pumping unit also comprises: the control gear that is connected and exports to motor setpoint frequency and voltage with motor 8.Have first belt pulley 9 on the output shaft of described motor 8, described first belt pulley 9 is connected with second belt pulley 12 on being installed in live axle by belt 11, and the torque transfer that makes motor output shaft is to described live axle.
In the utility model, described control gear can adopt the form of electric control cubicle 1, is provided with electrical parts such as frequency variator, programmable controller (PLC), brake unit, display unit usually in electric control cubicle 1.Usually, the device that voltage and the constant Ac of fixed-frequency are transformed to the Ac of voltage or changeable frequency is called frequency variator.The frequency variator that is used for Electric Machine Control both can change voltage, also can change frequency.The output terminal of frequency variator is connected with motor 8, and motor 8 is worked under certain frequency, voltage.PLC and other industrial computer (as single-chip microcomputer etc.) can be realized the further control to frequency variator.Display unit can provide the interface that can carry out man-machine interaction for the user.
In the present embodiment, preferably, adopt permagnetic synchronous motor, select more preferably that output torque 300Nm is above for use, output power 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.In the design of gearless transmission oil pumping machine, permagnetic synchronous motor can satisfy big torque, slow-revving job requirement, not only helps energy saving, more can avoid the noise that pot motor when work produce, and has further reduced the operating noise of pumping unit integral body.
Motor 8 is installed on the rack platform 17, is coaxially installed with first belt pulley 9 on the output shaft of motor 8, and as shown in Figure 1, the diameter of first belt pulley 9 is less.The live axle 18 of pumping unit also is installed on the rack platform 17 by bearing 21, is coaxially installed with second belt pulley, 12, the second belt pulleys 12 and has the diameter bigger than first belt pulley 9 on live axle 18.Link to each other by belt 11 on first belt pulley 9 and second belt pulley 12.Because second belt pulley 12 is fixed on (for example by interference fit or key connecting) on the live axle 18, belt 11 can be delivered to live axle 18 with the output torque and the rotating speed of motor 8.For example, when the diameter of second belt pulley 12 was 2 times of first belt pulley, 9 diameters, the torque that then outputs on second belt pulley 12 was the twice of motor 8 output torques, and the rotating speed that outputs on second belt pulley 12 is 1/2nd of motor 8 output speeds.
In the embodiment shown in fig. 1, pumping unit adopts one-level bel-drivenn mode, is appreciated that the utility model 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 9 and second belt pulley 12.Belt 11 can adopt various suitable belts, and as vee belt, toothed belt etc., preferably, in order to prolong the life-span of belt 11 transmission, belt 11 is selected the vee belt for use.
After live axle 18 obtains torque and rotating speed, can under the drive of motor 8, rotate.Also be fixed with driving wheel 19 on the live axle, on the circumference of driving wheel 19, be provided with and hold the groove that drives rope 16, thus, drive rope 16 and can walk around driving wheel 19 easily.One end of described driving rope 16 connects rope hanger 14, and rope hanger 14 connects sucker rod 13; The other end that drives rope 16 is connected with counterweight 4.It is the torque that produces for balance sucker rod 13 that counterweight 4 is set.Like this, along with the rotation of driving wheel 19, sucker rod 13 can move up and down by in the vertical direction.
After the predetermined depth that sucker rod 13 arrives oil well is finished oil recovery, sucker rod 13 need be mentioned, therefore need to realize the backward rotation of driving wheel 19, promptly realize the backward rotation of motor 8.Preferably, adopt the backward rotation of position-measurement device control motor 8.In the present embodiment, adopt counting scale 22 and near switch 20 as position-measurement device.As shown in Figure 2, counting scale 22 coaxial being fixed on the live axle 18, on the rack platform 17 and and counting scale between leave less gap the place be provided with near switch 20.And be magnetic switch near switch 20.In the working stroke of sucker rod 13, count near the revolution of 20 pairs of live axles of switch, when reaching predetermined number of revolutions, send signal to control gear near switch 20, make PLC by frequency variator by motor 8 counter-rotatings.
Selectively, above-mentioned position-measurement device can be arranged on rack platform 17 and the live axle 18, also can be arranged on other parts of driving mechanism, for example, can be arranged on the output shaft of motor 8.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.
Preferably, for the security of operation of pumping unit, also be provided with lift rope 15 in the present embodiment.One end of described lift rope 15 is fixed on the driving wheel 19, and the other end of lift rope 15 is walked around driving wheel 18 and is fastened on the counterweight 4.When sucker rod 13 disconnects, counterweight 4 tenesmus, counterweight 4 drives lift rope 15 and makes driving wheel 19 high speed rotating, thereby motor 8 produces overload, this moment, the break 10 of motor 8 braked under the effect of electric control cubicle, lift rope 15 tension counterweights, thereby counterweight can not freely be fallen, can avoid producing the bump accident.
When pumping unit is installed, drive lift rope 15 by motor 8 and promote counterweight, thereby rope hanger 14 descends and sucker rod 13 can be connected with rope hanger 14 simultaneously.When pumping unit was not pumped, lift rope 15 can be taken off from counterweight, as the lifting rope use of space telpher.
The utility model preferably has guide mechanism, in the present embodiment, is provided with upper saw pulley 5 on counterweight 4, and guide rope 6 is clipped in therebetween, makes that moving direction remains vertically in counterweight 4 moves up and down process.
In addition, parallel in order to make the pumping unit base of frame with horizontal plane, be provided with adjustable jackscrew 3 in the bottom of framework 7, to regulate whole framework level.For mobile pumping unit easily, also can be provided with roller 2 in the bottom of framework 7.
In another embodiment of the present utility model, provide another kind of way of realization of the present utility model.In this pumping unit, comprise oil pumping mechanism, counterweight, rack-mount live axle, be installed in the driving wheel on the described live axle, described oil pumping mechanism is connected by the driving rope of walking around driving wheel with counterweight.Wherein, described oil pumping mechanism comprises: sucker rod, rope hanger.Described pumping unit also comprises: the control gear that is connected and exports to motor the voltage of setpoint frequency with motor.The output shaft of described motor is provided with first sprocket wheel, and second sprocket wheel is installed on live axle.
In the utility model, described control gear still can adopt the form of electric control cubicle, is provided with electrical parts such as frequency variator, programmable controller (PLC), brake unit, display device in electric control cubicle.The output terminal of frequency variator is connected with motor, and motor is worked under certain frequency, voltage.PLC can realize the further control to frequency variator.
In the present embodiment, motor adopts the high pulling torque permagnetic synchronous motor, and this high pulling torque permagnetic synchronous motor is still by frequency converter timing.Similarly, 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 sprocket diameter and the ratio of first sprocket diameter.Wherein, tractive force P equals gravity poor after sucker rod and the counterweigh, also comprises the resistance in the oil pumping operation.Tractive force P is different and different according to oil well depth and hole condition.When the pumping unit design of present embodiment, the tractive force P of motor output is 5880N to 29400N.Simultaneously, rotating speed of motor is more than or equal to n, and (π * D), wherein, L is a rod stroke to n=2 * L * S * K/, and S is the sucker rod jig frequency.In the gearless transmission oil pumping machine design, K is preferably 0-10, and driving wheel diameter D is preferably 0.3m-1.2m.More preferably, present embodiment is selected specified output torque 1300Nm, rated output power 20kw, the high pulling torque permagnetic synchronous motor of rated speed 200rpm for use.
Motor is installed on the rack platform, is coaxially installed with first sprocket wheel on the motor output shaft, and the diameter of first sprocket wheel is less.The live axle of pumping unit also is installed on the rack platform, is coaxially installed with second sprocket wheel on live axle, and second sprocket wheel has the diameter bigger than first sprocket wheel.Link to each other by chain on first sprocket wheel and second sprocket wheel.Because second sprocket wheel is fixed on (for example by interference fit or key connecting) on the live axle, chain can be delivered to live axle with the output torque and the rotating speed of motor.By chain transmission, can bear the load bigger than belt.When the diameter of second sprocket wheel was the twice of first sprocket wheel, the torque that then outputs on second sprocket wheel was the twice of motor output torque, and the rotating speed that outputs on second sprocket wheel is 1/2nd of a motor output speed.
Live axle can rotate under the drive of motor after obtaining torque and rotating speed.Be fixed with driving wheel on the live axle, have on the circumference of driving wheel and hold the groove that drives rope, thus, drive rope and walk around driving wheel, an end of described driving rope connects rope hanger, and rope hanger connects sucker rod; The other end that drives rope is connected with counterweight.Along with the rotation of driving wheel, sucker rod can move up and down by in the vertical direction.
After the predetermined depth of sucker rod arrival oil well is finished oil recovery, sucker rod need be mentioned, so motor needs in the predetermined instant backward rotation.Adopt photoelectric encoder as position-measurement device in the present embodiment, described photoelectric encoder can be arranged on the motor output shaft.The working principle of photoelectric encoder is conventionally known to one of skill in the art, does not repeat them here.
Although the utility model is to be described by above-mentioned preferred embodiment, its way of realization is not limited to above-mentioned mode of execution.Should be realized that under the situation that does not break away from the utility model purport those skilled in the art can make different variations and modification to the utility model.
Claims (10)
1. a gearless transmission oil pumping machine is characterized in that, comprises support, motor, break, control gear, sucker rod, rope hanger, counterweight, live axle, driving rope, driving wheel, first belt pulley, second belt pulley and belt; Wherein, described motor is rack-mount, and described break is installed on the motor; Described control gear is connected with motor and break, and exports the voltage of setpoint frequency to motor; Described live axle is rack-mount, described driving wheel is installed on the described live axle, described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with rope hanger, first belt pulley is installed on the output shaft of described motor, second belt pulley is installed on the described live axle, described belt connects described first belt pulley and second belt pulley, and the specified 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.
2. gearless transmission oil pumping machine according to claim 1 is characterized in that 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 0.3m-1.2m.
3. gearless transmission oil pumping machine according to claim 1 is characterized in that, the tractive force P of motor output is 5880N to 29400N.
4. gearless transmission oil pumping machine according to claim 3 is characterized in that, described motor is a permagnetic synchronous motor.
5. gearless transmission oil pumping machine according to claim 4, it is characterized in that, this gearless transmission oil pumping machine also comprises position-measurement device, described position-measurement device comprises counting scale and near switch, described counting scale is installed on the output shaft of live axle or motor, and the described of count pick up dish position signal is connected with described control gear near switch.
6. gearless transmission oil pumping machine according to claim 4, it is characterized in that this gearless transmission oil pumping machine also comprises position-measurement device, described position-measurement device is a photoelectric encoder, described photoelectric encoder is installed on the output shaft of live axle or motor, and is connected with control gear.
7. according to claim 5 or 6 described gearless transmission oil pumping machines, it is characterized in that, also comprise lift rope, an end and the counterweight of described lift rope is fastenedly connected, the other end and driving wheel are fastenedly connected.
8. gearless transmission oil pumping machine according to claim 1 is characterized in that, this pumping unit base of frame is provided with adjusts jackscrew and roller.
9. gearless transmission oil pumping machine according to claim 1 is characterized in that this pumping unit also comprises the guide mechanism that is used to keep the counterweight vertical motion, and described guide mechanism is installed on the counterweight, and described counterweight moves along guide mechanism.
10. a gearless transmission oil pumping machine is characterized in that, comprises support, motor, break, control gear, sucker rod, rope hanger, counterweight, live axle, driving rope, driving wheel, first sprocket wheel, second sprocket wheel and chain; Described motor is rack-mount, and described break is installed on the motor; Described control gear is connected with motor, and exports the voltage of setpoint frequency to motor; Described live axle is rack-mount, and described driving wheel is installed on the described live axle, and described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with rope hanger; First sprocket wheel is installed on the output shaft of described motor, second sprocket wheel is installed on the described live axle, described chain connects described first sprocket wheel and second sprocket wheel; The specified 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201476843U CN201050470Y (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201476843U CN201050470Y (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050470Y true CN201050470Y (en) | 2008-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201476843U Expired - Fee Related CN201050470Y (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping unit |
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| CN (1) | CN201050470Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763381A (en) * | 2015-03-24 | 2015-07-08 | 西安合远能通科技有限公司 | Vertical shaft oil pumping unit system |
-
2007
- 2007-04-26 CN CNU2007201476843U patent/CN201050470Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763381A (en) * | 2015-03-24 | 2015-07-08 | 西安合远能通科技有限公司 | Vertical shaft oil pumping unit system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20100426 |