CN101037936A - Gearless transmission oil pumping machine - Google Patents
Gearless transmission oil pumping machine Download PDFInfo
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- CN101037936A CN101037936A CN 200710098039 CN200710098039A CN101037936A CN 101037936 A CN101037936 A CN 101037936A CN 200710098039 CN200710098039 CN 200710098039 CN 200710098039 A CN200710098039 A CN 200710098039A CN 101037936 A CN101037936 A CN 101037936A
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- transmission oil
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Abstract
The invention discloses a gearless transmission oil pumping machine, comprising a support bracket, motor, brake, control device, pumping rod, rope suspender, counter weight, driving shaft, driving rope, driving wheel, a first belt pulley, a second belt pulley and a belt. The motor is mounted on the support bracket, the brake is installed on the motor. The control device is connected with the motor and the brake, which outputs frequency-initialized voltage. The driving shaft is mounted on the support bracket, the driving wheel is fixed on the driving shaft, the pumping rod and the rope suspender are connected with the counter weight by the driving rope round the driving wheel, output shaft of the motor is equipped with the first belt pulley, the second belt pulley is fixed on the driving shaft, the belt is connected with the first belt pulley and the second belt pulley. Manufacturing difficulty is greatly simplified, transmission noise is reduced and the problem of oil leakage is solved, manufacturing cost is greatly reduced.
Description
Technical field
The present invention relates to extracting device of oil, relate in particular to a kind of gearless transmission oil pumping machine.
Background technology
Oil pumper belongs to oil exploitation machinery, and at present, oil pumper is usually by the motor direction operation, and by transmission device, promptly gear reduction unit 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, electrical control cubicles, counterweight, polished rod eye, oil pumping polish rod, motor, pinion, gear wheel, head sheave and reduction box.Oil pumping polish rod links to each other with polished rod eye, and motor is connected with reduction box through shaft coupling, and gear wheel and head sheave and elevator wheel interfix, and are installed on day wheel shaft by bearing, and it wheel shaft is fastening with day wheel shaft fastener.When oil pumping work, motor drives the reduction box running by shaft coupling, pinion that links to each other with reduction gearbox output shaft and gear wheel engagement, thus make the forward and reverse regularly rotation of the head sheave that tightens together with gear wheel, drive sucker rod and pump.
In above-mentioned oil pumping workover rig, motor arrives head sheave by reduction box 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 reducer, manufacturing 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 reduction box.Therefore, be necessary to develop a kind of new pumping unit, overcome above weak point.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, the operation little no leakage of oil problem of noise and oil pumper with low cost.
Gearless transmission oil pumping machine disclosed by the invention comprises support, motor, brake, control device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, first belt pulley, second belt pulley and belt; Wherein, described motor is rack-mount, 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, described driving wheel is installed on the described driving shaft, described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with polished rod eye, 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 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 driving shaft or motor, and the described of count pick up dish position signalling is connected with described control device 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 driving shaft or motor, and is connected with control device.
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 oil pumper base of frame is provided with and adjusts jackscrew and roller.
Preferably, described gearless transmission oil pumping machine also comprises the guiding mechanism that is used to keep the counterweight vertical motion, and described guiding mechanism is installed on the counterweight, and described counterweight moves along guiding mechanism.
The present invention also provides a kind of gearless transmission oil pumping machine, comprises support, motor, brake, control device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, first sprocket wheel, second sprocket wheel and chain; Described motor is rack-mount, and described brake is installed on the motor; Described control device is connected with motor, 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 the driving rope of walking around driving wheel with polished rod eye; 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 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 oil pumper of the present invention has been taked the design of gearless gearbox, greatly reduce difficulty of processing and manufacturing 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 manufacturing cost reduce greatly.
Description of drawings
Fig. 1 is the structural representation of a kind of gearless transmission oil pumping machine of the embodiment of the invention;
Fig. 2 is the left view of gearless transmission oil pumping machine shown in Figure 1.
The specific embodiment
Further specify gearless transmission oil pumping machine provided by the present invention below in conjunction with accompanying drawing, but therefore the present invention is not subjected to any restriction.
As shown in Figure 1 and Figure 2, this oil pumper comprises oil pumping mechanism, counterweight 4, rack-mount driving shaft 18, is installed in the driving wheel 19 on the described driving shaft, 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, polished rod eye 14.Described oil pumper also comprises: the control device 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 driving shaft by belt 11, and the torque transfer that makes motor output shaft is to described driving shaft.
In the present invention, described control device can adopt the form of electrical control cubicles 1, is provided with electrical parts such as frequency converter, programmable logic controller (PLC), brake unit, display unit usually in electrical control cubicles 1.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 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 converter.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, 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.In the design of gearless transmission oil pumping machine, permagnetic synchronous motor 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.
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 driving shaft 18 of oil pumper 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 driving shaft 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 driving shaft 18, belt 11 can be delivered to driving shaft 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, 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 9 and second belt pulley 12.Belt 11 can adopt various suitable belts, and as V-belt, cog belt etc., preferably, in order to prolong the life-span of belt 11 transmission, belt 11 is selected the V-belt for use.
After driving shaft 18 obtains torque and rotating speed, can under the drive of motor 8, rotate.Also be fixed with driving wheel 19 on the driving shaft, 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 polished rod eye 14, and polished rod eye 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 desired 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 driving shaft 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 impulse stroke of sucker rod 13, count near the revolution of 20 pairs of driving shafts of switch, when reaching predetermined number of revolutions, send signal to control device near switch 20, make PLC by frequency converter by motor 8 counter-rotatings.
Selectively, above-mentioned position-measurement device can be arranged on rack platform 17 and the driving shaft 18, also can be arranged on other parts of transmission 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 oil pumper, 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 brake 10 of motor 8 braked under the effect of electrical control cubicles, lift rope 15 tension counterweights, thereby counterweight can not freely be fallen, can avoid producing the bump accident.
When oil pumper is installed, drive lift rope 15 by motor 8 and promote counterweight, thereby polished rod eye 14 descends and sucker rod 13 can be connected with polished rod eye 14 simultaneously.When oil pumper was not pumped, lift rope 15 can be taken off from counterweight, as the lifting rope use of space telpher.
The present invention preferably has guiding mechanism, in the present embodiment, is provided with directive wheel 5 on counterweight 4, and guide rope 6 is clipped in therebetween, makes that the direction of motion remains vertically in counterweight 4 moves up and down process.
In addition, parallel in order to make the oil pumper 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 oil pumper easily, also can be provided with roller 2 in the bottom of framework 7.
In another embodiment of the present invention, provide another kind of way of realization of the present invention.In this oil pumper, comprise oil pumping mechanism, counterweight, rack-mount driving shaft, be installed in the driving wheel on the described driving shaft, 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, polished rod eye.Described oil pumper also comprises: the control device 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 driving shaft.
In the present invention, described control device still can adopt the form of electrical control cubicles, is provided with electrical parts such as frequency converter, programmable logic controller (PLC), brake unit, display in electrical control cubicles.The output of frequency converter is connected with motor, and motor is worked under certain frequency, voltage.PLC can realize the further control to frequency converter.
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 oil pumper 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 driving shaft of oil pumper also is installed on the rack platform, is coaxially installed with second sprocket wheel on driving shaft, 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 driving shaft, chain can be delivered to driving shaft with the output torque and the rotating speed of motor.By chain drive, 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.
Driving shaft can rotate under the drive of motor after obtaining torque and rotating speed.Be fixed with driving wheel on the driving shaft, 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 polished rod eye, and polished rod eye 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 desired 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 operating principle of photoelectric encoder is conventionally known to one of skill in the art, does not repeat them here.
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 gearless transmission oil pumping machine is characterized in that, comprises support, motor, brake, control device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, first belt pulley, second belt pulley and belt; Wherein, described motor is rack-mount, 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, described driving wheel is installed on the described driving shaft, described sucker rod is connected with counterweight by the driving rope of walking around driving wheel with polished rod eye, 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 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, according to any one described gearless transmission oil pumping machine in the 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 driving shaft or motor, and the described of count pick up dish position signalling is connected with described control device near switch.
6, according to any one described gearless transmission oil pumping machine in the 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 driving shaft or motor, and is connected with control device.
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 oil pumper 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 oil pumper also comprises the guiding mechanism that is used to keep the counterweight vertical motion, and described guiding mechanism is installed on the counterweight, and described counterweight moves along guiding mechanism.
10, a kind of gearless transmission oil pumping machine is characterized in that, comprises support, motor, brake, control device, sucker rod, polished rod eye, counterweight, driving shaft, driving rope, driving wheel, first sprocket wheel, second sprocket wheel and chain; Described motor is rack-mount, and described brake is installed on the motor; Described control device is connected with motor, 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 the driving rope of walking around driving wheel with polished rod eye; 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 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710098039 CN101037936A (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping machine |
| 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 200710098039 CN101037936A (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101037936A true CN101037936A (en) | 2007-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710098039 Pending CN101037936A (en) | 2007-04-26 | 2007-04-26 | Gearless transmission oil pumping machine |
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| CN (1) | CN101037936A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953710A (en) * | 2011-08-16 | 2013-03-06 | 李占生 | Intelligent fixed-torque pumping unit |
| CN110242796A (en) * | 2019-07-11 | 2019-09-17 | 西安安森智能仪器股份有限公司 | A kind of transmission device and grease exhaust apparatus |
-
2007
- 2007-04-26 CN CN 200710098039 patent/CN101037936A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953710A (en) * | 2011-08-16 | 2013-03-06 | 李占生 | Intelligent fixed-torque pumping unit |
| CN110242796A (en) * | 2019-07-11 | 2019-09-17 | 西安安森智能仪器股份有限公司 | A kind of transmission device and grease exhaust apparatus |
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Open date: 20070919 |