CN201065825Y - Stroke adjustable energy-saving type hydraulic pumping unit - Google Patents
Stroke adjustable energy-saving type hydraulic pumping unit Download PDFInfo
- Publication number
- CN201065825Y CN201065825Y CNU2007200965791U CN200720096579U CN201065825Y CN 201065825 Y CN201065825 Y CN 201065825Y CN U2007200965791 U CNU2007200965791 U CN U2007200965791U CN 200720096579 U CN200720096579 U CN 200720096579U CN 201065825 Y CN201065825 Y CN 201065825Y
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- pumping unit
- pump
- adjustable energy
- connecting vessels
- pistons
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Abstract
The utility model relates to a stroke-adjustable energy-saving hydraulic pumping unit, comprising two frames, two gear sets, a hydraulic transmission mechanism, a plurality of racks, a plurality of head sheaves, a carrying rope and a sucker rod. The utility model is characterized in that two frames are symmetrically arranged on two sides of the hydraulic transmission mechanism; a gear set and two head sheaves are fixedly arranged on each frame; two gear sets are respectively meshed with the racks arranged at two ends of the hydraulic transmission mechanism; the gear sets pull the sucker rod via the carrying rope and the head sheaves; the hydraulic transmission mechanism comprises a communicating vessel, two pistons and a hydraulic pump; the hydraulic pump is fixedly arranged in the communicating vessel; the two pistons are respectively arranged in a die cavity at two ends of the communicating vessel; driving liquid is filled between two pistons in the die cavity of the communicating vessel. As an innovative high stroke adjustable energy-saving hydraulic pumping unit, the utility model has the advantages of simple structure, scientific and reasonable design, adjustable stroke and frequency of stroke, convenient maintenance, assembly, disassembly and use, safe operation, high yield of liquid, and low energy consumption and operational cost.
Description
Technical field
The utility model relates to the employed pumping unit in oil field, especially a kind of stroke adjustable energy-saving hydraulic pumping unit.
Background technique
The method of recover petroleum mainly is divided into two big classes from the stratum: a class is to utilize the energy on stratum itself to come lifting crude oil, is called the oil flow production method; Another kind of is because the energy shortage in stratum own, must to liquid makeup energy in the well crude oil be given rise to ground with machinery artificially, be called artificial lift oil-extraction method or mechanical oil recovery method, pumping unit (being commonly called as the machine of kowtowing) is a machinery indispensable in the mechanical oil recovery method.Dark oil of ensconcing underground (or seabed) is to adopt pumping unit to extract out by oil pick-up tube, so each crude oil production well needs a pumping unit at least.The working principle of this pumping unit is:, the upper and lower reciprocatory motion that rotatablely moving of motor is converted into sucker rod is come up oil from underground extraction by belt transmission and cam mechanism as prime mover with AC motor.At present the pumping unit used of oil producing operation mainly contains two kinds of trip fine strain of millet formula pumping unit and straight line type pumping units, and trip fine strain of millet formula pumping unit uses the most extensive, and mainly there is following defective in the course of the work in it: 1. stroke is non-adjustable, and the oil pumping rate is lower; 2. entire equipment need be installed slide block, the crank of ton, and the transportation installation cost is higher; The entire equipment installation and maintenance loaded down with trivial details, waste time and energy; 4. poor stability; 5. produce oil efficient is lower.Also have the minority oil field to use the straight line type pumping unit, the shortcoming of its existence is that power of motor is too big, it is high self to consume energy, operating cost is high.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and design science is reasonable, stroke, jig frequency is adjustable, maintenance, easy accessibility, handling safety, production fluid amount height, power consumption is few, the stroke adjustable energy-saving hydraulic pumping unit that operating cost is low.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of stroke adjustable energy-saving hydraulic pumping unit, by frame, gear train, fluid drive mechanism, tooth bar, head sheave, carrying rope and sucker rod constitute, bilateral symmetry at fluid drive mechanism is installed two frames, install a gear train and two head sheaves on each frame respectively, two gear trains mesh respectively with the tooth bar that the fluid drive mechanism two ends are installed respectively, this gear train is by carrying rope and head sheave traction sucker rod, it is characterized in that: fluid drive mechanism is by connecting vessels, piston, oil hydraulic pump constitutes, install an oil hydraulic pump in the connecting vessels, two pistons are installed in the die cavity at connecting vessels two ends respectively and are filled with driving liquid between two pistons in the connecting vessels die cavity.
And top, described connecting vessels two ends is respectively arranged with liquid filling hole, and this connecting vessels bottom is provided with a liquid discharging valve.
And described oil hydraulic pump is the wherein a kind of of gear pump, vane pump, rotary piston pump or screw pump, and above-mentioned oil hydraulic pump all is connected with commutator for electric motor.
And the both sides of the inherent oil hydraulic pump of described connecting vessels are provided with a hydraulic oil switch.
And described two pistons are installed in respectively in the die cavity at connecting vessels two ends, and each installs with the lower end of a tooth bar respectively in the upper end of two pistons, each tooth bar and corresponding gear train engagement.
And described two gear trains all draw a sucker rod respectively by carrying rope and head sheave.
And one of described two gear train are by carrying rope and head sheave traction sucker rod, and another draws the lift heavy case by carrying rope and head sheave, and this lift heavy case is connected with slide on being packed in frame.
Advantage of the present utility model and beneficial effect are:
1. the coaxial reducing pinion that installs of the driving gear of this pumping unit gear train, and by this gear and driven gear engagement, the gear ratio by adjusting driving gear and driven gear or the size of pinion diameter realize that the stroke of whole pumping unit and jig frequency are adjustable, and this pumping unit also can be adjusted stroke and jig frequency by the control to the lifting rate of pump.
2. the fluid drive mechanism of this pumping unit adopts law of connected vessels, promptly draw carrying rope by the cooperation driving gear bar driven gear group of oil hydraulic pump, piston and driving liquid, and the carrying rope at two ends all can be installed sucker rod and cooperatively interact and carry out oil pumping work, the slide block and the crank that have saved last ton thus, greatly reduce installation, cost of transportation, improve economic benefit, reduced security risk.
3. operation when the carrying rope at this pumping unit two ends can connect sucker rod with the realization twin-well respectively, and only both can finish with a small-power oil hydraulic pump, greatly reduce power consumption, improved manufacturing efficiency, reduced operating cost, increased profit margin.
4. this pumping unit connecting vessels is provided with the flow direction that the hydraulic oil switch can direct controlling and driving liquid, makes things convenient for the dismounting of oil hydraulic pump; And this hydraulic oil switch also has brake function, and unlatching and closure by the hydraulic oil switch can make this pumping unit in time shut down, and adaptability to changes is stronger.
5. the utility model is simple in structure, and design science is reasonable, and stroke, jig frequency is adjustable, maintenance, dismounting, easy to use, and handling safety, production fluid amount height, power consumption is less, operating cost is low, is the higher stroke adjustable energy-saving hydraulic pumping unit of a kind of novelty.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure enlarged diagram of Fig. 1 connecting vessels.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
This stroke adjustable energy-saving hydraulic pumping unit, constitute by frame 1, gear train, fluid drive mechanism 17, tooth bar 3, head sheave 11, carrying rope 2 and sucker rod 20, bilateral symmetry at fluid drive mechanism is installed two frames and two gear trains, a frame is installed sucker rod, and another frame is installed lift heavy case 12; Two gear trains mesh respectively with the tooth bar that the fluid drive mechanism two ends are installed respectively, and these two gear trains are formed by driving gear 8, driven gear 9 and reel 10 and are packed on the frame.The coaxial reducing pinion 7 that is fixed with of the driving gear of gear train, the diameter of this reducing pinion is greater than driving gear, the engagement of driving tooth wheel and rack is also passed through coaxial pinion driving driven gear, this driven gear is coaxial with reel, reel is all by carrying rope and head sheave traction sucker rod and lift heavy case, an end that is this pumping unit connects sucker rod, and the other end connects the lift heavy case, and the two ends of pumping unit also can all connect sucker rod; This lift heavy case is vertically operation on the vertical track on the frame 13, and head sheave traction sucker rod is an overhang.Above-mentioned is that therefore prior art does not have all to narrate its detailed structure and annexation.
Innovative point of the present utility model is: described fluid drive mechanism is made up of connecting vessels 22, piston 21, oil hydraulic pump 16 and hydraulic oil 23, top, connecting vessels two ends is respectively arranged with liquid filling hole 6, the bottom is provided with liquid discharging valve 14, in connecting vessels, install an oil hydraulic pump, it is wherein a kind of that this oil hydraulic pump can be gear pump, vane pump, rotary piston pump or screw pump, and present embodiment is example with the gear pump.This gear pump connects a commutator for electric motor 15, gear pump both sides in this connecting vessels respectively are provided with a hydraulic oil switch 24, two pistons seal respectively in the die cavity that is installed in the connecting vessels two ends, and the coaxial respectively tooth bar that installs in the upper end of two pistons, each tooth bar respectively with the engagement of the driving gear of respective teeth wheels, hydraulic oil is full of the connecting vessels die cavity.
Two tooth bars of this pumping unit all are fixed with yoke assy rack support 5 in a side opposite with its teeth, on this yoke assy rack support level be fixed with one with a roller 4 of tooth bar vertical surface sliding contact, the effect of this roller is exactly to keep tooth bar stability in vertical direction; Yoke assy rack support installs by stiffening ring 18 and connecting vessels, and this connecting vessels is by fixed plate 19 and framework fixed installing.
Working principle of the present utility model:
Opening the commutator for electric motor of this stroke adjustable energy-saving hydraulic pumping unit powers to gear pump, gear pump will turn clockwise and drive the hydraulic oil motion, both the mechanical energy of gear pump had been converted into the kinetic energy of hydraulic oil, the piston that hydraulic oil promotes an end moves upward, the other end will move downward, the tooth bar that the piston at two ends drives respectively separately makes progress, move downward, the gear train that each toothed rack drives on the position rotates, the carrying rope that is connected by gear train spurs the sucker rod that is connected, if what pumping unit two ends carrying rope connected respectively is sucker rod and lift heavy case, when the sucker rod of an end falls, the lift heavy case of the other end will rise so; When reaching spacing, commutator for electric motor is driving gear pump in the other direction, and at this moment by driving mechanism, the sucker rod of an end rises, and the lift heavy case of the other end falls, and so repeatedly underground crude oil is extracted out.
Claims (7)
1. stroke adjustable energy-saving hydraulic pumping unit, by frame, gear train, fluid drive mechanism, tooth bar, head sheave, carrying rope and sucker rod constitute, bilateral symmetry at fluid drive mechanism is installed two frames, install a gear train and two head sheaves on each frame respectively, two gear trains mesh respectively with the tooth bar that the fluid drive mechanism two ends are installed respectively, this gear train is by carrying rope and head sheave traction sucker rod, it is characterized in that: fluid drive mechanism is by connecting vessels, piston, oil hydraulic pump constitutes, install an oil hydraulic pump in the connecting vessels, two pistons are installed in the die cavity at connecting vessels two ends respectively and are filled with driving liquid between two pistons in the connecting vessels die cavity.
2. stroke adjustable energy-saving hydraulic pumping unit according to claim 1 is characterized in that: top, described connecting vessels two ends is respectively arranged with liquid filling hole, and this connecting vessels bottom is provided with a liquid discharging valve.
3. stroke adjustable energy-saving hydraulic pumping unit according to claim 1 is characterized in that: described oil hydraulic pump is the wherein a kind of of gear pump, vane pump, rotary piston pump or screw pump, and above-mentioned oil hydraulic pump all is connected with commutator for electric motor.
4. stroke adjustable energy-saving hydraulic pumping unit according to claim 1 and 2 is characterized in that: the both sides of the inherent oil hydraulic pump of described connecting vessels are provided with a hydraulic oil switch.
5. stroke adjustable energy-saving hydraulic pumping unit according to claim 1, it is characterized in that: described two pistons are installed in respectively in the die cavity at connecting vessels two ends, and each installs with the lower end of a tooth bar respectively in the upper end of two pistons, each tooth bar and corresponding gear train engagement.
6. stroke adjustable energy-saving hydraulic pumping unit according to claim 1 is characterized in that: described two gear trains all draw a sucker rod respectively by carrying rope and head sheave.
7. stroke adjustable energy-saving hydraulic pumping unit according to claim 1, it is characterized in that: one of described two gear train are by carrying rope and head sheave traction sucker rod, another is by carrying rope and head sheave traction lift heavy case, and this lift heavy case is connected with slide on being packed in frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200965791U CN201065825Y (en) | 2007-07-03 | 2007-07-03 | Stroke adjustable energy-saving type hydraulic pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200965791U CN201065825Y (en) | 2007-07-03 | 2007-07-03 | Stroke adjustable energy-saving type hydraulic pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065825Y true CN201065825Y (en) | 2008-05-28 |
Family
ID=39483001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200965791U Expired - Fee Related CN201065825Y (en) | 2007-07-03 | 2007-07-03 | Stroke adjustable energy-saving type hydraulic pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065825Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU221892U1 (en) * | 2023-06-22 | 2023-11-29 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Downhole rod pump drive |
-
2007
- 2007-07-03 CN CNU2007200965791U patent/CN201065825Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU221892U1 (en) * | 2023-06-22 | 2023-11-29 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Downhole rod pump drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080528 |