CN215718645U - Multi-stroke non-circular gear oil pumping unit - Google Patents
Multi-stroke non-circular gear oil pumping unit Download PDFInfo
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- CN215718645U CN215718645U CN202121524542.0U CN202121524542U CN215718645U CN 215718645 U CN215718645 U CN 215718645U CN 202121524542 U CN202121524542 U CN 202121524542U CN 215718645 U CN215718645 U CN 215718645U
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Abstract
The utility model discloses a multi-stroke non-circular gear oil pumping unit, and belongs to the technical field of petroleum machinery. The device comprises a base and a bracket fixed on the base, wherein a non-circular gear driving device is arranged on the base, and the output end of the non-circular gear driving device is connected with a multi-rope-groove roller; two groups of crown blocks are arranged at the upper end of the bracket; the steel wire rope is wound on the multi-rope-groove roller, one end of the steel wire rope is connected with the weight box after winding around one group of crown pulley, and the other end of the steel wire rope is connected with the rope hanger after winding around the other group of crown pulley. The utility model has simple structure and easy flushing adjustment; the non-circular gear box is adopted, when the motor moves at a unidirectional uniform rotating speed, the output of the non-circular gear box is periodic positive and negative rotation, the driving device has a compact structure and short transmission chain, is full of mechanical parts, reliable, durable, efficient and energy-saving, has the advantages of a beam pumping unit and a tower pumping unit, and is reliable, durable, efficient, energy-saving and low in cost.
Description
Technical Field
The utility model relates to the technical field of petroleum machinery, in particular to a multi-stroke non-circular gear oil pumping unit.
Background
The pumping unit is a kind of mechanical equipment for exploiting petroleum, and can be divided into rod type oil production equipment and rodless type oil production equipment in terms of oil exploitation mode, and they all make petroleum come out of well by means of pressurization. The pumping unit with reciprocating sucker rod is the main one. Pumping units with reciprocating sucker rods can be roughly divided into two types, namely a beam pumping unit and a non-beam pumping unit.
A walking beam type oil pumping machine is generally directly dragged by a common alternating current asynchronous motor through a cylindrical gear reducer, a balance weight balance block and an oil pumping rod are driven by a crank and a connecting rod mechanism, and an underground oil pumping pump is driven to do vertical reciprocating motion with a fixed period, so that oil pumping is realized. The beam-pumping unit has the advantages of simple and durable structure, low manufacturing cost and convenient maintenance, has the defects of low pumping efficiency, serious energy waste, difficult realization of long stroke and low stroke frequency, and is limited by the structure, is very inconvenient when adjusting the stroke, can be carried out by large-scale machinery, and has obvious limitation.
The walking-beam-free pumping unit overcomes the defects of small stroke, high stroke frequency, low efficiency and the like of the walking-beam pumping unit, and improves the motion performance and the energy-saving effect of the pumping unit. Can achieve long stroke, low stroke frequency and high efficiency, and has obvious advantages. However, the walking-beam-free pumping unit still has a serious defect, namely how to realize the reversing mode of the up-down stroke of the pumping unit. The driving device of the walking-beam-free oil pumping unit generally comprises a motor, a circular gear reducer, a roller and the like. In the composition structure, usually, the motor transfers the motion to the circular gear reducer through a belt, the circular gear reducer is transferred to the roller through the coupler, and the flexible part fixed on the roller drives the sucker rod to reciprocate up and down. Therefore, the stroke reversing action of the walking-beam-free oil pumping unit is generally realized by periodically positive and negative rotating motions of the motor.
The reversing mode seems to be simple, but has obvious defects, not only is the manufacturing cost high, but also the key is that the driving device mostly adopts a linear motor, a variable frequency motor or a numerical control system and the like, and the core components are difficult to adapt to the severe natural environment in the field and cannot work for a long time. Therefore, the walking beam-free pumping unit using the electrical components to realize stroke reversing has the following disadvantages: high cost, multiple faults and difficult maintenance. Therefore, the extremely vital non-beam pumping unit is difficult to popularize and popularize.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a multi-stroke non-circular gear oil pumping unit by combining the characteristics of non-circular gears. The pumping unit can overcome the problems that the existing beam pumping unit has low efficiency and high energy consumption, the beam-free pumping unit has high manufacturing cost, core components are difficult to adapt to the severe outdoor natural environment, and the service life is short.
The technical scheme of the utility model is as follows: a multi-stroke non-circular gear oil pumping unit comprises a base and a bracket fixed on the base, wherein a non-circular gear driving device is arranged on the base, and the output end of the non-circular gear driving device is connected with a multi-rope groove roller; two groups of crown blocks are arranged at the upper end of the bracket; the steel wire rope is wound on the multi-rope-groove roller, one end of the steel wire rope is connected with the weight box after winding around one group of crown pulley, and the other end of the steel wire rope is connected with the rope hanger after winding around the other group of crown pulley.
It further comprises the following steps: the non-circular gear driving device comprises a support and a non-circular gear box fixedly arranged on the support; an output non-circular gear shaft of the non-circular gear box is connected with a rotating shaft of the multi-rope-groove roller, an input shaft of the non-circular gear box is fixedly connected with a speed reducer, and the speed reducer is fixedly connected with a motor.
The support is connected with the base in a sliding mode, and an adjusting lead screw for limiting is arranged between the support and the base.
The non-circular gearbox includes an input shaft rotatably mounted in a housing; an output non-circular gear shaft is rotatably sleeved at the left end of the input shaft, a planet carrier is fixed in the middle of the input shaft, and a fixed non-circular sun gear is sleeved at the right end of the input shaft; a planet shaft is arranged on the planet carrier, a non-circular planet gear II is fixedly arranged at the left end of the planet shaft, and a non-circular planet gear I is fixedly arranged at the right end of the planet shaft; the second non-circular planetary gear is meshed with a non-circular gear on the output non-circular gear shaft; the first non-circular planetary gear is meshed with the fixed non-circular sun gear, and the fixed non-circular sun gear is fixedly connected with the shell.
The support adopts a tower-type structure.
The multi-rope groove roller is provided with a plurality of rope grooves with different diameters.
Compared with the prior art, the utility model has the beneficial effects that:
1. the roller is provided with a plurality of rope grooves with different diameters, corresponding to different strokes, the adjusting screw rod is used for adjusting the positions of the driving device during different strokes, the structure is simple, and the impact adjustment is easy;
2. the non-circular gear box is adopted, when the motor moves at a unidirectional uniform rotating speed, the output of the non-circular gear box is periodic positive and negative rotation movement, the driving device has a compact structure and a short transmission chain, and is a full mechanical part, reliable, durable, efficient and energy-saving;
3. the tower-frame type full mechanical structure is adopted, the pumping unit is suitable for severe field environment, is reliable and durable, has simple structure and low manufacturing and operating maintenance cost, and has the advantages of a beam pumping unit and a tower-frame type pumping unit;
4. the large stroke and the low stroke frequency are easy to realize, the requirements of modern oil fields can be met, and the device is reliable, durable, efficient, energy-saving and low in cost.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is an enlarged view of the non-circular gear drive of FIG. 2;
FIG. 4 is a cross-sectional view of a non-circular gearbox;
in the figure: 1. a base; 2. a support; 3. a non-circular gear drive; 4. a weight box; 5. a wire rope; 6. a crown block wheel; 7. a rope hanger; 8. a support; 9. a multi-rope groove roller; 10. a non-circular gear box; 11. a speed reducer; 12. a motor; 13. adjusting the lead screw; 14. a housing; 15. an input shaft; 16. a fixed non-circular sun gear; 17. a non-circular planet gear I; 18. a planet shaft; 19. a planet carrier; 20. a second non-circular planetary gear; 21. and outputting a non-circular gear shaft.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, a base 1 of a multi-stroke non-circular gear pumping unit is provided with a bracket 2 and a non-circular gear driving device 3. The support 2 adopts a tower frame type structure, and two groups of crown blocks 6 are arranged at the upper end of the support 2. The non-circular gear driving device 3 comprises a support 8, a non-circular gear box 10 is fixed on the support 8, and a multi-rope groove roller 9 is rotatably arranged on the support 8. An output non-circular gear shaft 21 of the non-circular gear box 10 is connected with a rotating shaft of the multi-rope groove roller 9, an input shaft 15 of the non-circular gear box 10 is fixedly connected with a speed reducer 11, and the speed reducer 11 is fixedly connected with a motor 12. The steel wire rope 5 is wound on the multi-rope-groove roller 9 again, one end of the steel wire rope 5 is connected with the weight box 4 after winding around one group of crown pulley 6, and the other end of the steel wire rope 5 is connected with the rope hanger 7 after winding around the other group of crown pulley 6. When the pumping unit works, the motor 12 drives the non-circular gear box 10 through the speed reducer 11 to drive the multi-rope-groove roller 9 to do periodic forward and backward rotation movement and drive the steel wire rope to move up and down, so that oil pumping is realized.
The multi-groove drum 9 is provided with a plurality of grooves with different diameters. The support 8 and the base 1 can move relatively, and the adjusting screw 13 is used for limiting the relative position of the support 8 and the base 1. And a support 8 at one end of the adjusting screw 13 is connected, and the other end of the adjusting screw is connected with a base 1 of the oil pumping unit. When the stroke of the pumping unit needs to be adjusted, the steel wire rope 5 only needs to be moved from one rope groove of the multi-rope groove roller 9 to the other rope groove, and meanwhile, the lead screw 13 of the driving device is adjusted, so that the vertical position of the steel wire rope and the crown block wheel is kept unchanged.
Referring again to FIG. 4, the non-circular gearbox 10 includes a housing 14, the housing 14 being secured to the carrier 8. The input shaft 15 is rotatably installed in the housing 14, the left end of the input shaft 15 is rotatably sleeved with an output non-circular gear shaft 21, the middle part of the input shaft 15 is fixed with a planet carrier 19, and the right end of the input shaft 15 is sleeved with a fixed non-circular sun gear 16. The planet carrier 19 is provided with a planet shaft 18, the left end of the planet shaft 18 is fixedly provided with a non-circular planet gear II 20, and the right end of the planet shaft 18 is fixedly provided with a non-circular planet gear I17. The second non-circular planetary gear 20 is meshed with a non-circular gear on an output non-circular gear shaft 21; the first non-circular planetary gear 17 is meshed with the fixed non-circular sun gear 16, and the fixed non-circular sun gear 16 is fixedly connected with the shell 14. When the non-circular gear box works, the input shaft 15 drives the non-circular planetary gear I1 and the non-circular planetary gear II 20 to rotate through the planetary carrier 19, and drives the multi-rope-groove roller 9 to move forward and backward through the output non-circular gear shaft 21.
The multi-stroke non-circular gear oil pumping unit provided by the embodiment has the advantages of simple structure, firmness and durability, easiness in impact adjustment, capability of realizing automatic reversing of strokes, suitability for severe outdoor working conditions, high efficiency, energy conservation, low manufacturing cost, convenience in maintenance and the like;
the pumping unit adopts a tower-type structure, and the non-circular gear driving device consists of a non-circular gear box, a speed reducer, a multi-rope groove roller and a motor. The multi-rope-groove roller is provided with a plurality of rope grooves with different diameters, which correspond to different strokes. The adjusting lead screw device is arranged on the support of the non-circular gear driving device, and the position of the driving device in different strokes can be adjusted;
2, the most key function of the non-circular gear box is to realize the automatic reversing of the stroke. The non-circular gear planetary gear train consists of a non-circular gear planetary gear train, and the operation rule is that when a motor moves in a single direction at a uniform rotating speed, the output of a non-circular gear box is in periodic forward and reverse rotation motion so as to drive a multi-rope groove roller to rotate periodically in forward and reverse directions. The driving device has the advantages of compact structure, short transmission chain, full mechanical parts, reliability, durability, high efficiency and energy conservation. Meanwhile, the pumping unit adopts a tower structure, so that the balance effect is good, the operation efficiency is high, and the energy-saving effect is very obvious;
3, the multi-stroke non-circular gear oil pumping unit is easy to realize large stroke and low stroke frequency, can meet the requirements of modern oil fields, has simple structure, low manufacturing cost and low maintenance and operation cost, and is a reliable, durable, efficient, energy-saving and low-cost oil pumping unit;
4, the multi-stroke non-circular gear oil pumping unit adopts a full mechanical mode, realizes high efficiency and energy saving of numerical control or other tower type oil pumping units, is suitable for severe field environment due to a full mechanical structure, and is reliable and durable; meanwhile, the structure is simple, the manufacturing and operation maintenance costs are low, and the beam pumping unit has the advantages of a beam pumping unit and a tower pumping unit. The oil pumping unit is an ideal updated product of the existing oil pumping unit, is widely put into use, and can generate positive economic and social benefits.
Claims (6)
1. The utility model provides a non-circular gear beam-pumping unit of many strokes, includes base (1) and fixes support (2) on base (1), its characterized in that: the base (1) is provided with a non-circular gear driving device (3), and the output end of the non-circular gear driving device (3) is connected with a multi-rope groove roller (9); two groups of crown block wheels (6) are arranged at the upper end of the bracket (2); wire rope (5) is rewound on many grooving cylinder (9), be connected with weight box (4) after a set of crown pulley (6) is walked around to the one end of wire rope (5), another set of crown pulley (6) is walked around to the other end of wire rope (5) is connected with polished rod eye (7).
2. The multi-stroke non-circular gear pumping unit of claim 1, wherein: the non-circular gear driving device (3) comprises a support (8) and a non-circular gear box (10) fixedly arranged on the support (8); an output non-circular gear shaft (21) of the non-circular gear box (10) is connected with a rotating shaft of the multi-rope groove roller (9), an input shaft (15) of the non-circular gear box (10) is fixedly connected with a speed reducer (11), and the speed reducer (11) is fixedly connected with a motor (12).
3. The multi-stroke non-circular gear pumping unit of claim 2, wherein: support (8) and base (1) sliding connection install spacing regulation lead screw (13) of using between support (8) and base (1).
4. The multi-stroke non-circular gear pumping unit of claim 2, wherein: the non-circular gearbox (10) includes an input shaft (15) rotatably mounted in a housing (14); an output non-circular gear shaft (21) is rotatably sleeved at the left end of the input shaft (15), a planet carrier (19) is fixed in the middle of the input shaft (15), and a fixed non-circular sun gear (16) is sleeved at the right end of the input shaft (15); a planet shaft (18) is mounted on the planet carrier (19), a non-circular planet gear II (20) is fixedly mounted at the left end of the planet shaft (18), and a non-circular planet gear I (17) is fixedly mounted at the right end of the planet shaft (18); the second non-circular planetary gear (20) is meshed with a non-circular gear on the output non-circular gear shaft (21); the first non-circular planetary gear (17) is meshed with the fixed non-circular sun gear (16), and the fixed non-circular sun gear (16) is fixedly connected with the shell (14).
5. The multi-stroke non-circular gear pumping unit of claim 1, wherein: the support (2) adopts a tower-type structure.
6. The multi-stroke non-circular gear pumping unit of claim 1, wherein: the multi-rope-groove roller (9) is provided with a plurality of rope grooves with different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121524542.0U CN215718645U (en) | 2021-07-06 | 2021-07-06 | Multi-stroke non-circular gear oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121524542.0U CN215718645U (en) | 2021-07-06 | 2021-07-06 | Multi-stroke non-circular gear oil pumping unit |
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| Publication Number | Publication Date |
|---|---|
| CN215718645U true CN215718645U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121524542.0U Active CN215718645U (en) | 2021-07-06 | 2021-07-06 | Multi-stroke non-circular gear oil pumping unit |
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| CN (1) | CN215718645U (en) |
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2021
- 2021-07-06 CN CN202121524542.0U patent/CN215718645U/en active Active
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