CN201507282U - Stroke-increasing type long stroke oil-pumping unit - Google Patents
Stroke-increasing type long stroke oil-pumping unit Download PDFInfo
- Publication number
- CN201507282U CN201507282U CN2009201500042U CN200920150004U CN201507282U CN 201507282 U CN201507282 U CN 201507282U CN 2009201500042 U CN2009201500042 U CN 2009201500042U CN 200920150004 U CN200920150004 U CN 200920150004U CN 201507282 U CN201507282 U CN 201507282U
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- stroke
- oil
- pumping unit
- long stroke
- head sheave
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- Expired - Fee Related
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Abstract
The present utility model discloses a stroke-increasing type long stroke oil-pumping unit, pertaining to a ground equipment for machinery oil production. The long stroke oil-pumping unit comprises an electric motor (1), a speed reducer (3), a support (11), a crank rocker reversing mechanism, a roller stroke-increasing mechanism, and a counterbalance weight (9) and a pumping rod (10). The utility model is characterized in that by adopting a four-pole reversing mechanism and a roller stroke-increasing mechanism, the long stroke oil-pumping unit not only has advantages of simpleness, durability and reliability as conventional beam pumpers, but also realizes head pulley direct balancing and long stroke, furthermore, has good balancing effect, overcomes a weak pocket that the torque peak value of a conventional beam-pumping unit is too big, increases the lifting capacity of the oil pumping machine, and reduces power consumption and cost for oil production.
Description
One, technical field
The long stroke pumping unit of stroke length increasing that the utility model relates to belongs to a kind of ground installation that no beam type mechanical oil recovery is used.
Two, background technology
Oil pumper is one of main ground installation of suction crude oil.Current, countries in the world ground machine oil production equipment commonly used has beam-pumping unit and blue elephant, the described drum-type long stroke oil sucking machine of its Chinese patent disclosed CN88100284A manual on December 7th, 88 adopts the clutch commutation, and its commutation is reliable inadequately.
Three, summary of the invention
The purpose of this utility model provides a kind of long stroke pumping unit of stroke length increasing of four-bar mechanism commutation.Its commutation is reliable, and easy for installation, complete machine weight and manufacture difficulty are more much smaller than common beam machine.
The purpose of this utility model realizes that by following scheme this machine is made up of motor, reducer, crank rocker changement, roller bearing travel prolongation mechanism, balance weight and sucker rod.Motor is passed to reducer by belt transmission with power, the back drive crank that slows down at the uniform velocity rotates, crank drives rocking bar through connecting rod and swings (crank, connecting rod, rocking bar have been formed changement) repeatedly, and rocking bar is put on the reciprocally swinging (roller bearing, head sheave have been formed travel prolongation mechanism) at angle by a roller bearing driving day crop rotation that is rigidly fixed on the head sheave again.The wire rope of sucker rod and balance weight is wrapped on the head sheave, and direction is opposite, so head sheave when swing, drives sucker rod and balance weight and rises repeatedly and descend.The upper and lower reciprocating motion of sucker rod reaches the purpose of aspirating crude oil from oil well; The upper and lower reciprocating motion of balance weight be used to the to offset load of sucker rod reduces the moment of torsion of crank axle.
Four, description of drawings
Further describe embodiment of the present utility model below with reference to the accompanying drawings.
Fig. 1 is the drive mechanism schematic diagram of long stroke pumping unit of stroke length increasing;
Fig. 2 increases the journey schematic diagram.
Five, the specific embodiment
Referring to Fig. 1, the unidirectional rotation of motor (1), after belt (2) and reducer (3) deceleration, drive reduction box crank (8) rotation, crank (8) drives rocking bar (5) swing through connecting rod (4), and head sheave is contained in the top of support (11), roller bearing (6) is rigidly connected with head sheave (7), roller bearing (6) is stuck in again in the guide groove of rocking bar (5), during rocking bar (5) swing, will drive head sheave (7) by roller bearing (6) and realize putting on angular oscillatory motion.Balance weight (9) and sucker rod (10) hang and are wrapped on the head sheave (7), and winding direction is opposite, during the head sheave swing, will drive balance weight (9) and sucker rod (10) back and forth rises and descends, and reach the purpose of aspirating crude oil from oil well.Balance weight (9) be used to the to offset load of sucker rod reduces the moment of torsion of crank axle.
In the technical solutions of the utility model, adjust balance conveniently for making, being equipped with one on crank (8) can be along the little balance weight (12) of its side slip, when variation according to hole condition, when needing to adjust balance weight greatly, can directly go up the plus-minus balance weight, when needs inching balance, only need to get final product with spanner mobile balanced block (12) to balance (9).
Increasing journey in the technical solutions of the utility model implements by Fig. 2, among Fig. 2, the radii fixus of roller bearing (6) on head sheave is r, rocking bar (5) centre of gyration is a to the distance of head sheave (7) centre of gyration, and a=r, the angle of head sheave (7) swing is the twice of rocking bar (5) angle of oscillation all the time like this, and this structure promptly can increase journey, does not destroy the characteristics of motion of rocking bar again.
The utility model is owing to adopted the four bar changements identical with the common beam machine, roller bearing increases Cheng Yuanli, thereby have, and can realize the direct balance of head sheave, good balance effect again with equally simple, sturdy, the reliable advantage of common beam oil pumper, overcome the big shortcoming of common beam oil pumper peak torque, increase the hoisting power of oil pumper, reduced power consumption, reduced cost for oil production, adopted tower-type not have the walking beam body frame simultaneously, machine volume is little, light weight, installation are simple.
According to above-mentioned principle, can produce the head sheave type oil pumper of the heavy various models that differ in size of the direct hanging balancing of head sheave, also can produce the head sheave type oil pumper of little, the lightweight various models that differ in size of compact conformation, volume of crank balance.
Claims (2)
1. long stroke pumping unit of stroke length increasing, by motor (1), belt (2), reducer (3), connecting rod (4), rocking bar (5), roller bearing (6), head sheave (7), crank (8), balance weight (9), sucker rod (10) and support (11) are formed, it is characterized in that: head sheave (7) is contained in the top of support (11), and roller bearing (6) is rigidly connected with head sheave (7), and roller bearing (6) is stuck in again in the guide groove of rocking bar (5).
2. long stroke pumping unit of stroke length increasing according to claim 1 is characterized in that: the radii fixus r of roller bearing (6) on head sheave (7) and rocking bar (5) centre of gyration equate apart from a to head sheave (7) centre of gyration, that is: a=r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201500042U CN201507282U (en) | 2009-04-13 | 2009-04-13 | Stroke-increasing type long stroke oil-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201500042U CN201507282U (en) | 2009-04-13 | 2009-04-13 | Stroke-increasing type long stroke oil-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507282U true CN201507282U (en) | 2010-06-16 |
Family
ID=42468410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201500042U Expired - Fee Related CN201507282U (en) | 2009-04-13 | 2009-04-13 | Stroke-increasing type long stroke oil-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507282U (en) |
-
2009
- 2009-04-13 CN CN2009201500042U patent/CN201507282U/en not_active Expired - Fee Related
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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: 20100616 Termination date: 20110413 |