CN101702602A - Motor starting device of oil extractor - Google Patents

Motor starting device of oil extractor Download PDF

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Publication number
CN101702602A
CN101702602A CN200910221170A CN200910221170A CN101702602A CN 101702602 A CN101702602 A CN 101702602A CN 200910221170 A CN200910221170 A CN 200910221170A CN 200910221170 A CN200910221170 A CN 200910221170A CN 101702602 A CN101702602 A CN 101702602A
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CN
China
Prior art keywords
motor
hydraulic
clutch
fluid cylinder
transmission shaft
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Granted
Application number
CN200910221170A
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Chinese (zh)
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CN101702602B (en
Inventor
应可勇
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应可勇
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Priority to CN2009102211701A priority Critical patent/CN101702602B/en
Publication of CN101702602A publication Critical patent/CN101702602A/en
Application granted granted Critical
Publication of CN101702602B publication Critical patent/CN101702602B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a motor starting device of an oil extractor, which is connected with a motor of an oil extractor of an oil field and comprises a hydraulic motor, a clutch mechanism and a hydraulic mechanism, wherein the hydraulic motor is provided with a driving shaft, the clutch mechanism is used for enabling the driving shaft to move forwards and backwards along an axial direction, the input ends of the hydraulic motor and the clutch mechanism are respectively connected with the output end of the hydraulic mechanism through hydraulic tubes, one end of the clutch mechanism is connected with the driving shaft, and the other end is connected with the motor. In the device, the clutch mechanism can drive the driving shaft to move towards the motor when the motor of the oil extractor needs to be started, and the hydraulic motor is started to drive a rotor of the motor to rotate by utilizing the characteristics of large unit torque, wide rotating speed range, convenient control and the like of the hydraulic motor; when the rotating speed reaches the needed working rotating speed of the oil extractor, the switch of the motor is started, and the motor drives the oil extractor to operate. After the starting work is finished, the clutch mechanism drives the driving shaft to move away from the motor.

Description

The motor starting device of oil pumper
Technical field
The present invention relates to the electric motor starting technology of oil-field oil pumper, more particularly relate to a kind of motor starting device of oil pumper.
Background technology
In the process of oilfield exploitation oil, the oil pumper equipment that is absolutely necessary.As shown in Figure 1, wherein 1 is motor, and 2 is brake gear, and 3 is decelerator, and 4 is crank, and 5 is crankshaft balance weight, and 6 is connecting rod, and 7 is crossbeam, and 8 is walking-beam counterweight, and 9 is support shaft, and 10 is walking beam, and 11 is horse head, and 12 is polished rod eye, and 13 is support, and 14 is base.Through driving belt high speed rotary motion is passed to decelerator 3 by motor 1 during work, will be rotatablely moved by the connecting rod 6 of crank 4 after decelerator 3 slows down becomes the upper and lower swing of walking beam 10.Hang over polished rod eye 12 on the horse head 11 and drive oil well pump by sucker rod and do upper and lower reciprocating motion, with the pumping of well liquid to ground.The load at polished rod eye 12 places in the process of upstroke (below be referred to as suspending point loading) is made of oil liquid in pipe weight and frictional force of sucker rod nt wt net weight, pump, suspending point loading is made of the weight and the frictional force of sucker rod in liquid when down stroke, and visible oil pumper suspending point loading difference when upper and lower stroke is bigger.Adopt various balanced measures when oil pumper design and work, mainly be to install the equilibrium problem of crankshaft balance weight 5 when realizing oil pumper work on crank 4 additional for this reason, make oil pumper the rotating part device operating load as far as possible steadily.Also cause motor 1 startup load and stable operation load difference on the oil pumper very big thus, for satisfying the startup requirement of oil pumper, need to be equipped with heavy-duty motor 1, but when oil pumper stable operation, the motor actual power is much smaller when starting, and is generally its about 1/3rd when starting, and motor 1 long-term work do not occur under the abnormal failure situation below rated power at oil well, be in the state of " low load with strong power ", efficient is not high.When oil pumper was worked, the current of electric that the oil well management personnel record when also needing according to upper and lower stroke was judged whole balance of well pumping unit state, will shut down when seriously uneven, adjusts crankshaft balance weight 5 positions and makes balance of well pumping unit.During adjustment, need the cooperation of motor 1 switch and brake gear 2, crank 4 is parked in proper angle, generally near level angle, need move inward as crankshaft balance weight 5, the angle of crank 4 then is inclined upwardly slightly.Need outwards to move as crankshaft balance weight 5, the angle of crank 4 is then downward-sloping slightly.Because crankshaft balance weight 5 weight are big, so control is difficult for, all by manually finishing whole adjustment, labor strength is big at present, wastes time and energy and can influence production time of oil well, so reduce the adjustment to crankshaft balance weight 5 in the real work as far as possible.If the position inaccuracy that balance is adjusted, will cause most of oil pumper to work long hours in non-equilibrium state, such non-equilibrium state is as long as exist the increase that not only can cause power consumption, but also can when oil pumper is in the down stroke process, make motor be in generating state, and then external electrical network be produced bigger impact.
Summary of the invention
With respect to the excessive problem of operation power consumption, the purpose of this invention is to provide a kind of motor starting device of oil pumper, easily starter motor at the electric motor starting power consumption that has oil pumper in the prior art.
For achieving the above object, the present invention adopts following technical scheme:
A kind of motor starting device of oil pumper, be connected with the motor of oil-field oil pumper, comprise the hydraulic motor that is provided with power transmission shaft, be used for clutch and hydraulic mechanism that power transmission shaft moves forward and backward vertically, the input of hydraulic motor and clutch is connected with the output of hydraulic mechanism by hydraulic tube respectively, one end of clutch is connected with power transmission shaft, and the other end is connected with motor.
Described clutch comprises clutch fluid cylinder, angular wheel and belt pulley, power transmission shaft passes the clutch fluid cylinder, one end of power transmission shaft is fixedlyed connected with the angular wheel inboard, the angular wheel outside is provided with a belt pulley, belt pulley one end shape and angular wheel outer shape match, and the other end is fixedlyed connected with motor.
Described hydraulic motor also comprises retaining mechanism, and retaining mechanism is located at the below of hydraulic motor and is locked with motor base.
Described retaining mechanism comprises locking fluid cylinder and locking slips, and locking fluid cylinder input links to each other with hydraulic mechanism by hydraulic tube, and the output of locking fluid cylinder links to each other with the locking slips.
Described hydraulic mechanism comprises hydraulic electric motor, hydraulic pump and the Pressure gauge that is used to detect the hydraulic pressure pump pressure, the input of hydraulic pump links to each other with the output of hydraulic electric motor, the hydraulic pressure delivery side of pump is connected with hydraulic motor, clutch fluid cylinder and locking fluid cylinder respectively by hydraulic tube, and Pressure gauge links to each other with the hydraulic pressure delivery side of pump.
Described starting drive also comprises the actuating unit that is used for the oil pumper maintenance, and actuating unit comprises actuator cylinder, and actuator cylinder is connected with hydraulic pump by hydraulic tube.
In technique scheme, the motor starting device of a kind of oil pumper of the present invention, be connected with the motor of oil-field oil pumper, comprise the hydraulic motor that is provided with power transmission shaft, be used for clutch and hydraulic mechanism that power transmission shaft moves forward and backward vertically, the input of hydraulic motor and clutch is connected with the output of hydraulic mechanism by hydraulic tube respectively, one end of clutch is connected with power transmission shaft, and the other end is connected with motor.When this device has adopted clutch need start at the motor of oil pumper the transmission axial direction electric machine is moved, and primer fluid pressure motor, utilize characteristics such as hydraulic motor unit's moment of torsion is big, the range of speeds is wide, control is convenient, drive the rotor rotation of motor, when rotating speed reaches the working speed of oil pumper needs, the switch of starter motor is moved by the driven by motor oil pumper.After startup work was finished, clutch drove power transmission shaft and removes motor.Owing to adopted special-purpose starting drive, like this oil pumper can only dispose and make it can be operated in the low-power motor of stablizing between dynamic loading zone, has changed the state of " low load with strong power " at present, has improved the mechanical efficiency of motor, reduces energy resource consumption.And this device can move, and conveniently is enabled in the oil pumper of different physical locations.
Description of drawings
Fig. 1 is the structural representation of existing oil pumper;
Fig. 2 is the stereochemical structure exploded view of hydraulic motor of the present invention and clutch;
Fig. 3 is the fundamental diagram of the motor starting device of oil pumper of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
See also Fig. 2, shown in Figure 3.A kind of motor starting device 20 of oil pumper, be connected with the motor 30 of oil-field oil pumper, comprise the hydraulic motor 21 that is provided with power transmission shaft 211, hydraulic motor 21 is located on the motor base 213, be used for clutch 22 and hydraulic mechanism 23 that power transmission shaft 211 moves forward and backward vertically, the input of hydraulic motor 21 and clutch 22 is connected with the output of hydraulic mechanism 23 by hydraulic tube 25 respectively, and an end of clutch 22 is connected with power transmission shaft 211, and the other end is connected with motor 30.Clutch 22 comprises clutch fluid cylinder 221, angular wheel 222 and belt pulley 223, power transmission shaft 211 passes clutch fluid cylinder 221, one end of power transmission shaft 211 and angular wheel 222 inboard fixedlying connected, angular wheel 222 outsides are provided with a belt pulley 223, belt pulley 223 1 end shapes and angular wheel 222 outer shape match, and the other end is fixedlyed connected with motor 30.Hydraulic motor 21 also comprises retaining mechanism 212, retaining mechanism 212 be located at hydraulic motor 21 motor base 213 the below and be locked with motor base 31.Retaining mechanism 212 comprises locking fluid cylinder 2121 and locking slips 2122, and locking fluid cylinder 2121 inputs link to each other with hydraulic mechanism 23 by hydraulic tube 25, and the output of locking fluid cylinder 2121 links to each other with locking slips 2122.Hydraulic mechanism 23 comprises hydraulic electric motor 231, hydraulic pump 232 and the Pressure gauge 233 that is used to detect the hydraulic pressure pump pressure, the input of hydraulic pump 232 links to each other with the output of hydraulic electric motor 231, fuel tank 234 links to each other with hydraulic pump 232 by filter 235, the output of hydraulic pump 232 is connected with hydraulic motor 21, clutch fluid cylinder 221 and locking fluid cylinder 2121 respectively by the unidirectional valve 236 that is located on the hydraulic tube 25, and Pressure gauge 233 links to each other with the output of hydraulic pump 232.Starting drive 20 also comprises the actuating unit (not shown) that is used for the oil pumper maintenance, and actuating unit comprises actuator cylinder 24, and actuator cylinder 24 is connected with hydraulic pump 232 by hydraulic tube 25.
During use, at first motor 30 and belt pulley 223 are linked together and be installed on the motor base 31, be installed on the oil pumper by the installation site and the mode of former oil pumper.Locking fluid cylinder 2121 and locking slips 2122 by retaining mechanism 212 are placed on the motor base 31 starting drive 20, start hydraulic electric motor 231 then, make hydraulic pump 232 work provide power fluid for starting drive 20 work.Regulate locking fluid cylinder reversal valve 41 power fluid is sent in the locking fluid cylinder 2121, promotion locking slips 2122 stretches out starting drive 20 is fixed on the motor base 31.Regulate clutch fluid cylinder reversal valve 42, make power fluid promote piston in the clutch fluid cylinder 221 and promote power transmission shaft 211 and stretch out to move and to be arranged in one end toper gear 222 and to push belt pulley 223 and be connected with a joggle.Regulate clutch fluid cylinder reversal valve 42 and make it place working position, so just finished being connected of starting drive 20 and pumping-unit motor 30.The reversal valve 43 of regulator solution pressure motor makes power fluid drive hydraulic motor 21 rotations then; and by power transmission shaft 211 with driven motors 30 rotations with the angular wheel 222 of belt pulley 223 engagement; regulate flow control valve 51; increase the rotating speed of hydraulic motor 21; as need the adjustment piece then motor 30 to be transferred to 2/3 place of rated speed; keep oil pumper at steady operation under this rotating speed after a few minutes; measure the pressure of power fluid and write down the oil pumper upstroke by Pressure gauge 233; Pressure gauge data during down stroke; strengthen the power fluid flow; improve rotating speed; generally near rated speed; on the record; the data of Pressure gauge 233 during down stroke; with general EQUILIBRIUM CALCULATION FOR PROCESS method; calculate and evaluating pumping oil machine poised state; when needing to adjust balance; use general balance of well pumping unit piece adjusting way to calculate adjustable range and direction; when oil pumping machine crank reaches near level angle; regulator solution pressure motor reversal valve 43 makes oil pumper be in stopped status; then lock the brake gear of oil pumper, adjust the position that standard is adjusted to balance weight precomputation according to balance weight.As not needing the adjustment piece then directly to increase the rated speed of the rotating speed of hydraulic motor 21 to motor 30, the switch of starter motor 30 and make hydraulic motor 21 be in unsteady operating state drags oil pumper work by motor 30 then.Regulate clutch fluid cylinder reversal valve 42 and make it place separating position, power fluid promotes the piston in the clutch fluid cylinder 221, makes power transmission shaft 211 withdrawals and will be positioned at end tapered gear 222 to withdraw from belt pulley 223, and starting drive 20 separates with motor 30.After adjusting locking fluid cylinder reversal valve 41 makes locking fluid cylinder 2121 retract the locking slips 2122 that stretches out, regulate locking fluid cylinder reversal valve 41, clutch fluid cylinder reversal valve 42 and hydraulic motor reversal valve 43 respectively and place position of rest, after closing the power supply of hydraulic electric motor 231, starting drive 20 can be removed.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating purpose of the present invention, and be not as limitation of the invention, as long as in essential scope of the present invention, all will drop in the scope of claim of the present invention variation, the modification of the above embodiment.

Claims (6)

1. the motor starting device of an oil pumper, be connected with the motor of oil-field oil pumper, it is characterized in that: comprise the hydraulic motor that is provided with power transmission shaft, be used for clutch and hydraulic mechanism that power transmission shaft moves forward and backward vertically, the input of hydraulic motor and clutch is connected with the output of hydraulic mechanism by hydraulic tube respectively, one end of clutch is connected with power transmission shaft, and the other end is connected with motor.
2. starting drive as claimed in claim 1 is characterized in that:
Described clutch comprises clutch fluid cylinder, angular wheel and belt pulley, power transmission shaft passes the clutch fluid cylinder, one end of power transmission shaft is fixedlyed connected with the angular wheel inboard, the angular wheel outside is provided with a belt pulley, belt pulley one end shape and angular wheel outer shape match, and the other end is fixedlyed connected with motor.
3. starting drive as claimed in claim 1 or 2 is characterized in that:
Described hydraulic motor also comprises retaining mechanism, and retaining mechanism is located at the below of hydraulic motor and is locked with motor base.
4. starting drive as claimed in claim 3 is characterized in that:
Described retaining mechanism comprises locking fluid cylinder and locking slips, and locking fluid cylinder input links to each other with hydraulic mechanism by hydraulic tube, and the output of locking fluid cylinder links to each other with the locking slips.
5. starting drive as claimed in claim 4 is characterized in that:
Described hydraulic mechanism comprises hydraulic electric motor, hydraulic pump and the Pressure gauge that is used to detect the hydraulic pressure pump pressure, the input of hydraulic pump links to each other with the output of hydraulic electric motor, the hydraulic pressure delivery side of pump is connected with hydraulic motor, clutch fluid cylinder and locking fluid cylinder respectively by hydraulic tube, and Pressure gauge links to each other with the hydraulic pressure delivery side of pump.
6. starting drive as claimed in claim 5 is characterized in that:
Described starting drive also comprises the actuating unit that is used for the oil pumper maintenance, and actuating unit comprises actuator cylinder, and actuator cylinder is connected with hydraulic pump by hydraulic tube.
CN2009102211701A 2009-11-02 2009-11-02 Motor starting device of oil extractor Expired - Fee Related CN101702602B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102211701A CN101702602B (en) 2009-11-02 2009-11-02 Motor starting device of oil extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102211701A CN101702602B (en) 2009-11-02 2009-11-02 Motor starting device of oil extractor

Publications (2)

Publication Number Publication Date
CN101702602A true CN101702602A (en) 2010-05-05
CN101702602B CN101702602B (en) 2011-11-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086761A (en) * 2011-01-31 2011-06-08 周国峰 Vertical gear rack pumping unit driven by hydraulic motor
WO2020214934A1 (en) * 2019-04-17 2020-10-22 Twin Disc, Inc. Electro-hydraulic high-pressure oilfield pumping system
CN112271961A (en) * 2020-10-15 2021-01-26 珠海格力电器股份有限公司 Motor starting system and method and electric equipment with motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2287672Y (en) * 1997-04-02 1998-08-12 浙江大学 Power recovery hydraulic well pumping unit for offshore oil production
CN2731138Y (en) * 2004-10-28 2005-10-05 李爽 Belt tension device for oil pumping machine
CN201528297U (en) * 2009-11-02 2010-07-14 应可勇 Motor starting device of oil extractor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086761A (en) * 2011-01-31 2011-06-08 周国峰 Vertical gear rack pumping unit driven by hydraulic motor
WO2020214934A1 (en) * 2019-04-17 2020-10-22 Twin Disc, Inc. Electro-hydraulic high-pressure oilfield pumping system
CN112271961A (en) * 2020-10-15 2021-01-26 珠海格力电器股份有限公司 Motor starting system and method and electric equipment with motor

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