CN101307683A - Symmetrically balanced chain type oil pumping unit - Google Patents
Symmetrically balanced chain type oil pumping unit Download PDFInfo
- Publication number
- CN101307683A CN101307683A CNA2008100161366A CN200810016136A CN101307683A CN 101307683 A CN101307683 A CN 101307683A CN A2008100161366 A CNA2008100161366 A CN A2008100161366A CN 200810016136 A CN200810016136 A CN 200810016136A CN 101307683 A CN101307683 A CN 101307683A
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- China
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- chain
- pumping unit
- wheel carrier
- chain drive
- ballast box
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Abstract
The invention provides a symmetric balancing chain drive pumping unit which is a double-chain system pumping unit which is designed for solving the problems of poor reliability, high failure rate of a balancing mechanism and a reversing mechanism, etc. The double-chain system pumping unit adopts a chain sprocket transmission mechanism to transfer power based on the symmetric balancing principle, and completes reversing through two crank shaped chain links, and improves the reliability of the whole pumping unit based on the maintenance of the characteristics of the prior chain-drive pumping unit, such as long stroke, large load, light weight, nodes and so on, so that the operation is more stable.
Description
Technical field
The present invention relates to a kind of oil recovery machiner device, relate in particular to and utilize mechanical weight to carry out reciprocal balance chain type oil pump.
Background technology
At present, it is conventional beam-pumping unit that the adopting of underground oil and gas drawn device widely used, though it is simple in structure, reliability and durability and be convenient to advantages such as maintenance that it has, but more and more be difficult to satisfy present deep-well, heavy oil wells to oil pumper long stroke, the requirement of load greatly, in this case, chain type oil pump has advantages such as stroke is long, inertial load is little, and quality and floor space are little, yet because its balance commutation problem is not well solved, reliability is relatively poor.Traditional chain type oil pump includes a cover chain sprocket system, the principal element that influences its reliability is that the reliability of its chain link and chain is relatively poor, this kind connected mode is inhomogeneous stressed from two kinds of mechanics angle analysis existence, the one, on the chain trajectory plane, eccentric force can produce a sizable lateral bending moment loading on chain; The 2nd, on the Normal plane of trajectory plane, balance weight has only a side stressed, and inevitable secondary produces a lateral bending moment, and same purpose is on chain.The specific links place that these two moments make chain for a long time is to moment direction torsional deformation separately, the impact when adding commutation, and the force-bearing situation at this place is comparatively abominable, has caused the generation of regular chain rupture situation, has increased cost indirectly.
Summary of the invention
The purpose of this invention is to provide a kind of commutation steadily, the sufficient symmetrical balance chain type oil pump of balance.
It is to keep former chain type oil pump by motor that the present invention solves the major programme that its technical problem takes, chain drive, crown sheave, the suspending weight adhesive tape, on the general structure basis of invariable that frame and base constitute, at chain, sprocket wheel installs a cover chain sprocket drive unit additional about a side coaxial line of suspending weight adhesive tape symmetry, the drive sprocket of two cover chain drives forms by a sprocket wheel and the coaxial equipment of conical gear, two driven sprockets are respectively by being pumped on the frame that is fixed on the drive sprocket top, a plate-like conical gear is installed on the base, is meshed with two conical gears of drive sprocket simultaneously.Directive wheel is equipped with in the ballast box both sides that articulate under the suspending weight adhesive tape, can move up and down along guide rail, and crank shape chain link one end is articulated in center, ballast box side, and the other end is articulated in a joint of chain.The overhead traveling crane wheel carrier mode of stepping down is adopted at the top, and two wheel carrier motors of assembling are provided with slide rail between wheel carrier and frame on the overhead traveling crane wheel carrier, are used for well workover and step down.
The present invention has designed symmetrical balance mechanism, eccentric force and lateral bending moment have been eliminated to the full extent, in the running, the crank shape chain link of two chains is in the other side's heteropleural all the time, be positioned at power is synchronous by the transmission of power of plate-like conical gear, the output uniformly of drive sprocket of bottom, guarantee being synchronized with the movement of two chain links, effectively balance act on lateral bending moment on the chain.Simultaneously, because two cover chains driver under stress balance weights simultaneously, so chain is stressed reduces for single cover, the stressing conditions of chain is more reasonable, also balance more during commutation.In addition, concerning ballast box, one-sided stressed to become bilateral equilibration stressed, and the pressure on the ballast box between both sides directive wheel and frame upper rail is more even, greatly reduces the complete machine rate of breakdown, has significantly reduced the number of times of shutting down maintenance.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is that the body shaft of oil pumper is surveyed schematic diagram;
Fig. 2 is the structural front view of oil pumper;
Fig. 3 is the structure side view of oil pumper;
Fig. 4 is an oil pumper commutation bascule schematic diagram;
Fig. 5 is an oil pumper drive sprocket assembly schematic diagram.
Comprising: the 1-motor, the 2-dust cover, the 3-reduction box, the 4-chain, 5-crank shape chain link, the 6-ballast box, the 7-driven sprocket, 8-takes turns frame sliding track, the 9-crown sheave, the 10-wheel carrier, 11-suspending weight adhesive tape, the 12-polished rod eye, 13-drive sprocket assembly, 14-plate-like conical gear, 15-lubricates oil box, the 16-production tree, the 17-base, the 18-frame, the 19-directive wheel, the 20-guide rail, the 21-staircase, 22-wheel carrier motor, 23-disc type spring bearing, the 24-conical gear, the 25-drive sprocket.
The specific embodiment
As accompanying drawing 1 or Fig. 2 or shown in Figure 3, mid frame 18 of the present invention is fixed on the base 17, and overhead traveling crane wheel carrier 10 is installed at the top of frame 18, crown sheave 9 is installed on the wheel carrier 10, be wound with suspending weight adhesive tape 11 on the crown sheave 9, an end of adhesive tape is connected in ballast box, and the other end is connected in polished rod eye 12.Drive sprocket assembly 13 is installed in the bottom of frame 18, drive sprocket assembly 13 as shown in Figure 5, two drive sprockets by discrete both sides constitute with the plate-like conical gear 14 that is installed on the frame bottom, drive sprocket is by sprocket wheel 25 and conical gear 24 coaxial being assembled, two conical gears 24 are meshing with each other transferring power with the plate-like conical gear 14 of bottom.A driven sprocket 7 respectively is equipped with in the both sides, top of frame 18, and chain 4 is housed between drive sprocket and driven sprocket.The hinged two crank shape chain links 5 in the side of ballast box 6, two chain links 5 are hinged with two chains 4 respectively, and directive wheel 19 is equipped with in the two sides of ballast box 6, can move up and down along guide rail 20, be provided with slide rail 8 between frame 18 and the overhead traveling crane wheel carrier 10, two wheel carrier motors of assembling on the wheel carrier 10.
The operating principle of this oil pumper is: motor power output is by reduction box 3 deceleration rear drive drive sprocket assemblies 13, and the path chain 4 that drives between the driven wheel is carried out the closed trajectory motion.Be articulated in two crank shape chain links 5 on the chain and do orbiting motion with chain, when reaching the place, point of contact of chain and driven wheel, two chain links begin commutation simultaneously and move in a circle, commutation finishes the back rectilinear motion, and this process utilizes the symmetrical balance principle to realize the up-and-down movement of commutation balance weight.Hinged suspending weight adhesive tape 11 with commutation ballast box 6 tops is walked around crown sheave logical 9 and is crossed polished rod eye 12 and is connected with rod string, and the drive oil well pump is pumped.Balance weight can be allocated according to realistic well condition.
Drive sprocket is assembled by a sprocket wheel and a conical gear as shown in Figure 5, the bottom that the plate-like conical gear is loaded on complete machine is used for transferring power between two drive sprockets, and be provided with tooth, the chain drive that lubricated oil box can be in the drive sprocket assembly and provide lubricated fully, whole system assembling and maintenance are all comparatively convenient, effectively reduce labour intensity and cost.
Well workover is stepped down and is adopted the overhead traveling crane wheel carrier mode of stepping down, 18 of wheel carrier 10 and frames are provided with twice slide rail 8, use the grease lubrication anti-corrosion, wheel carrier is fixed by double-screw bolt during operate as normal, when the needs well workover, take off adhesive tape, double-screw bolt, move behind the startup wheel carrier motor driving wheel frame and abdicate the well workover space, convenient, fast safety of whole process operation and reseting precision height.
Claims (3)
1. symmetrical balance chain drive pumping unit, comprise base (23), frame (18), motor (1), gearbox (3), chain drive system (4), crown sheave (9), suspending weight adhesive tape (11) and ballast box (6), it is characterized in that: the identical chain drive system of one cover is installed at the opposite side coaxial line of ballast box, formation is about the double-stranded bar system of suspending weight adhesive tape symmetry, the drive sprocket of two chain systems is all by a sprocket wheel and coaxial being assembled of conical gear, on its below base a plate-like conical gear is installed, be meshed with two conical gears of both sides simultaneously, constitute drive sprocket assembly (13).
2. chain drive pumping unit according to claim 1 is characterized in that: ballast box (6) side is hinged with two crank shape chain links (5), and the other end of two chain links is hinged respectively at two chains (4).
3. chain drive pumping unit according to claim 1 is characterized in that: be provided with slide rail between overhead traveling crane wheel carrier (10) and frame (18) top, two wheel carrier motors of assembling on the overhead traveling crane wheel carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100161366A CN101307683A (en) | 2008-05-14 | 2008-05-14 | Symmetrically balanced chain type oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100161366A CN101307683A (en) | 2008-05-14 | 2008-05-14 | Symmetrically balanced chain type oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101307683A true CN101307683A (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100161366A Pending CN101307683A (en) | 2008-05-14 | 2008-05-14 | Symmetrically balanced chain type oil pumping unit |
Country Status (1)
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| CN (1) | CN101307683A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182429A (en) * | 2011-04-02 | 2011-09-14 | 中国石油大学(华东) | Air balance hydraulic pumping unit for offshore platform |
| CN103233706A (en) * | 2013-05-21 | 2013-08-07 | 江苏圣乐机械有限公司 | Crank-type reversing buffer device for pumping unit |
| CN107458909A (en) * | 2017-08-01 | 2017-12-12 | 稳健医疗用品（荆门）有限公司 | A kind of coiler tenslator |
| CN108533191A (en) * | 2018-06-06 | 2018-09-14 | 中国石油大学(华东) | A kind of ultra-long-stroke is without pump barrel extracting device of oil |
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
| CN111255418A (en) * | 2020-03-20 | 2020-06-09 | 山东博康石油工程技术有限公司 | Double-connecting-rod reversing pumping unit and method |
| WO2022226954A1 (en) * | 2021-04-26 | 2022-11-03 | 德瑞石油装备（青岛）有限公司 | Lubricating structure and lubricating method for belt-type oil pumping machine |
-
2008
- 2008-05-14 CN CNA2008100161366A patent/CN101307683A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182429A (en) * | 2011-04-02 | 2011-09-14 | 中国石油大学(华东) | Air balance hydraulic pumping unit for offshore platform |
| CN102182429B (en) * | 2011-04-02 | 2014-04-02 | 中国石油大学(华东) | Air balance hydraulic pumping unit for offshore platform |
| CN103233706A (en) * | 2013-05-21 | 2013-08-07 | 江苏圣乐机械有限公司 | Crank-type reversing buffer device for pumping unit |
| CN103233706B (en) * | 2013-05-21 | 2014-10-15 | 江苏圣乐机械有限公司 | Crank-type reversing buffer device for pumping unit |
| CN107458909A (en) * | 2017-08-01 | 2017-12-12 | 稳健医疗用品（荆门）有限公司 | A kind of coiler tenslator |
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
| CN108533191A (en) * | 2018-06-06 | 2018-09-14 | 中国石油大学(华东) | A kind of ultra-long-stroke is without pump barrel extracting device of oil |
| CN111255418A (en) * | 2020-03-20 | 2020-06-09 | 山东博康石油工程技术有限公司 | Double-connecting-rod reversing pumping unit and method |
| WO2022226954A1 (en) * | 2021-04-26 | 2022-11-03 | 德瑞石油装备（青岛）有限公司 | Lubricating structure and lubricating method for belt-type oil pumping machine |
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Open date: 20081119 |