CN103775030A - Chain drive pumping unit - Google Patents
Chain drive pumping unit Download PDFInfo
- Publication number
- CN103775030A CN103775030A CN201210408085.8A CN201210408085A CN103775030A CN 103775030 A CN103775030 A CN 103775030A CN 201210408085 A CN201210408085 A CN 201210408085A CN 103775030 A CN103775030 A CN 103775030A
- Authority
- CN
- China
- Prior art keywords
- chain
- wheel
- tandem
- driving bogie
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Provided is a chain drive pumping unit. A motor and a speed reducer are arranged on the lower portion of a rack, a driving chain wheel and an upper chain wheel are arranged in the rack, a circulating chain is meshed with the driving chain wheel and the upper chain wheel in a winding mode, a special chain link is arranged on the circulating chain and connected with a returning frame, a crown sheave is arranged on the upper portion of the rack, a steel wire rope is hung on the crown sheave in a winding mode, one end of the steel wire rope is connected with a beam hanger, and an upper balancing box is connected with the other end of the steel wire rope. The chain drive pumping unit is characterized in that a split combined balancing box is connected on the returning frame and is formed by connecting a lower balancing box and the upper balancing box through a flexible connecting piece, and a chain tensioning mechanism is arranged on the upper balancing box and the rack. The chain tensioning mechanism is composed of a tensioning device and an arc guide rail. The tensioning device is provided with a sliding body in the middle of a sliding supporting seat, a jacking wheel is arranged at one end of the sliding body, a tensioning wheel is arranged at the other end of the sliding body, the split combined balancing box reduces loads in the reversing process, reversing impacts are reduced, the chain tensioning mechanism enables the circulating chain to be in a pre-tensioning state in the reversing process, reversing impacts caused by the looseness of the circulating chain are eliminated, the chain drive pumping unit can be reversed stably, and the service life of the circulating chain and the complete machine is prolonged.
Description
Affiliated technical field
The present invention relates to a kind of oil pumper, especially a kind of chain drive pumping unit.
Background technology
At present, oil extraction in oil field uses chain drive pumping unit in a large number, it is long that chain drive pumping unit has stroke, discharge capacity is large, the advantage such as simple in structure and energy-conservation, also Shortcomings of while, chain drive pumping unit at right angle setting chain drive structure, large center to center distance, low speed promotes heavy load, again without swelling device, circulation link chain drive come and go frame in a shuttling movement when commutation all chain links almost suddenly become whole tensioner states from whole relaxed states, produce very large dynamic load and reversing impact, the chain engagement of vertical-transmission is worsened, cause chain earlier period damage, produce the adverse consequences such as vibration and noise, reversing impact makes whole transmission system be subject to periodically vibration and impact, affect complete machine application life.Chain drive pumping unit mostly adopts regular adjustment to increase centre of sprocket distance, make chain tensioner to reduce the measure of reversing impact, but this has strengthened again the tension between sprocket wheel, the each chain link of chain, has increased the weight of the deterioration of chain engagement, and wearing and tearing are accelerated.
Summary of the invention
Goal of the invention: the chain engagement deterioration that exists larger dynamic load and reversing impact to cause in the time commutating in order to overcome existing chain drive pumping unit, earlier period damage, produce the shortcomings such as vibration and noise, a kind of chain drive pumping unit that can alleviate commutation dynamic load, eliminate reversing impact is provided.
Invention technical scheme: a kind of chain drive pumping unit, by frame, motor, reducer, drive sprocket, upper sprocket wheel, come and go frame, lower tandem-driving bogie, upper flat title case, arc-shaped guide rail, swelling device, circulation link chain, wire rope, crown sheave, polished rod eye, slide mass, expansion tightening wheel, sliding bearing seat, hold out against wheel, specific links etc. and form.There is motor in frame lower, reducer, there are drive sprocket and upper sprocket wheel in frame inside, drive sprocket is connected with reducer output shaft, on drive sprocket and upper sprocket wheel around engagement circulation link chain, on circulation link chain, there is a specific links to connect and come and go frame, there is crown sheave at upper rack, on crown sheave, be wound with wire rope, wire rope one end connects upper tandem-driving bogie, the other end connects polished rod eye, it is characterized in that: come and go between frame and wire rope and connect a Split assembled tandem-driving bogie, chain tension mechanism is arranged at upper tandem-driving bogie top, described Split assembled tandem-driving bogie is by connecting to form with flexible connecting member in the middle of lower tandem-driving bogie and upper tandem-driving bogie, lower tandem-driving bogie is connected to and comes and goes on frame, upper tandem-driving bogie is connected with wire rope.Described chain tension mechanism is to be made up of swelling device and arc-shaped guide rail, wherein swelling device is to be fixed with sliding bearing seat on upper tandem-driving bogie top, in the middle of sliding bearing seat, there is slide mass, slip physical efficiency is slided in the middle of sliding bearing seat, slide mass one end holds out against wheel, the other end has expansion tightening wheel, and arc-shaped guide rail is fixed in frame.
Described swelling device can adopt multiple fit structure, as cylinder, cylinder fit structure, and dovetail body fit structure.
Beneficial effect
1, adopt Split assembled tandem-driving bogie, make tandem-driving bogie design weight be less than minimum polished rod load, upper tandem-driving bogie weight can directly be promoted by minimum polished rod load, in utilization, tandem-driving bogie and lower tandem-driving bogie are at the speed difference of reversing impact moment operation, the dynamic loading that makes to act in specific links alleviates, and reversing impact is reduced.
2, chain tension mechanism makes circulation link chain in pre-tensioner state in the time of commutation, has eliminated because circulation link chain is subject to suddenly rapid tight the caused reversing impact of pulling force in relaxed state in the time commutating, and has extended the application life of circulation link chain.
3, owing to having reduced commutation dynamic load, eliminate reversing impact, made driving system not affected by reversing impact, operated steadily, extended complete machine application life.
Accompanying drawing explanation
Fig. 1, chain drive pumping unit structure chart
Fig. 2, chain drive pumping unit structure chart swelling device structure chart
Fig. 3, chain drive pumping unit structure chart swelling device structure chart A-A sectional view
Fig. 4, chain drive pumping unit structure chart swelling device structure chart B-B sectional view
Fig. 5, chain drive pumping unit the second swelling device structure chart
The C-C sectional view of Fig. 6, chain drive pumping unit the second swelling device structure chart
Fig. 7, the third swelling device structure chart of chain drive pumping unit
The D-D sectional view of Fig. 8, the third swelling device structure chart of chain drive pumping unit
The specific embodiment
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of chain drive pumping unit, by frame 1, motor 2, reducer 3, drive sprocket 4, upper sprocket wheel 5, come and go frame 6, lower tandem-driving bogie 7, upper flat title case 8, arc-shaped guide rail 9, swelling device 10, circulation link chain 11, wire rope 12, crown sheave 13, polished rod eye 14, slide mass 15, expansion tightening wheel 16, sliding bearing seat 17, hold out against wheel 18, specific links 19 etc. and form.There is motor 2 in frame 1 bottom, reducer 3, there are drive sprocket 4 and upper sprocket wheel 5 in frame 1 inside, drive sprocket 4 is connected with reducer 3 output shafts, on drive sprocket 4 and upper sprocket wheel 5 around engagement circulation link chain 11, on circulation link chain 11, there is a specific links 19 to connect and come and go frame 6, there is crown sheave 13 on frame 1 top, on crown sheave 13, be wound with wire rope 12, wire rope 12 one end connect upper tandem-driving bogie 8, the other end connects polished rod eye 14, it is characterized in that: come and go between frame 6 and wire rope 12 and connect a Split assembled tandem-driving bogie, chain tension mechanism is arranged at upper tandem-driving bogie 8 tops, described Split assembled tandem-driving bogie is by connecting to form with flexible connecting member in the middle of lower tandem-driving bogie 7 and upper tandem-driving bogie 8, lower tandem-driving bogie 7 is connected to and comes and goes on frame 6, upper tandem-driving bogie 8 is connected with wire rope 12.Described chain tension mechanism is to be made up of swelling device 10 and arc-shaped guide rail 9, wherein swelling device 10 is to be fixed with sliding bearing seat 17 on upper tandem-driving bogie 8 tops, in the middle of sliding bearing seat 17, there is slide mass 15, slide mass 15 can slide in the middle of sliding bearing seat 17, slide mass 15 one end hold out against wheel 18, the other end has expansion tightening wheel 16, and arc-shaped guide rail 9 is fixed in frame 1.
Described swelling device 10 can adopt multiple fit structure, the second swelling device that Fig. 5, Fig. 6 provide, in the middle of cylindrical shape sliding bearing seat 20, there is cylindrical slide mass 21, cylindricality slide mass 21 one end, garden hold out against wheel 23, the other end has expansion tightening wheel 22, and Fig. 7, Fig. 8 provide the third swelling device, is to be furnished with swallow-tail form slide mass 25 on swallow-tail form sliding bearing seat 24, there is expansion tightening wheel 26 swallow-tail form slide mass 25 one end, and the other end holds out against wheel 27.
When work, motor 2 drives reducer 3 to rotate, reducer 3 drives drive sprocket 4 to rotate, the circulation link chain 11 being looped around on drive sprocket 4 and upper sprocket wheel 5 rotates around drive sprocket 4 and upper sprocket wheel 5 engagements under the drive of drive sprocket 4, specific links 19 on circulation link chain 11 drives the Split assembled tandem-driving bogie that comes and goes frame 6 and be attached thereto, comprise that lower tandem-driving bogie 7 and upper tandem-driving bogie 8 move up and down, be connected to wire rope 12 on tandem-driving bogie 8 and walk around crown sheave 13 and promote and put down polished rod eye 14 and sucker rod.
When upstroke, specific links 19 drives round frame 6, lower tandem-driving bogie 7, upper tandem-driving bogie 8 and wire rope 12 to move downwards, wire rope 12 walks around that crown sheave 13 promotes polished rod eye 14 and sucker rod completes upstroke, starts commutation in the time that specific links 19 runs to " bottom dead centre ".After commutation, polished rod load becomes minimum load from maximum, upper tandem-driving bogie 8 design weights are less than minimum polished rod load, therefore going up tandem-driving bogie 8 weight can be promoted by minimum polished rod load, and lower tandem-driving bogie 7 weight act in specific links 19 by coming and going frame 6, to be promoted by circulation link chain 11, the weight sum of the weight of upper tandem-driving bogie 8 and lower tandem-driving bogie 7 equals whole machine balancing design weight, after commutation, down stroke starts, when specific links 19 is in the time that drive sprocket 4 engagements turn to drive sprocket 4 with circulation link chain 11 tangent point of contact, specific links 19 drive come and go frame 6 and lower tandem-driving bogie 7 from drive sprocket 4 gear teeth stressed break away to change into by circulation link chain 11 pull, now circulation link chain 11 is become suddenly stressed and is all rapid tight state from whole relaxed states that do not stress, produce reversing impact, this at present tandem-driving bogie 7 promote instantaneous velocity and be greater than tandem-driving bogie 8 hoisting velocities, speed difference between lower tandem-driving bogie 7 and upper tandem-driving bogie 8 makes it to produce relative micro-displacement, between upper tandem-driving bogie 8 and lower tandem-driving bogie 7, adopt flexible piece to connect, the weight of upper tandem-driving bogie 8 does not act on specific links 19 and circulation link chain 11, therefore make the dynamic loading of specific links 19 and circulation link chain 11 alleviate, the degree of reversing impact reduces.
The swelling device 10 of chain tension mechanism is fixed on tandem-driving bogie 8 tops, when specific links 19 is in the time that drive sprocket 4 engagement turns to circulation link chain 11 and will produce reversing impact with the point of contact of drive sprocket 4, the wheel 18 that holds out against of swelling device 10 just in time forwards arc top place to along camber guide rail 9, slide mass 15 is slided left in sliding bearing seat 17, make expansion tightening wheel 16 tensioner circulation link chains 11, make now all circulation link chains 11 in relaxed state become pre-tensioner state, in the time that specific links 19 turns over point of contact, elimination reversing impact occurs, down stroke continues to have moved down stroke afterwards, and so forth, make chain drive pumping unit even running under zero-speed reversion.
Claims (3)
1. a chain drive pumping unit, by frame 1, motor 2, reducer 3, drive sprocket 4, upper sprocket wheel 5, come and go frame 6, circulation link chain 11, wire rope 12, crown sheave 13, the formations such as polished rod eye 14 and specific links 19, there are motor 2 and reducer 3 in frame 1 bottom, in frame 1, there are drive sprocket 4 and upper sprocket wheel 5, drive sprocket 4 is connected with reducer 3 output shafts, on drive sprocket 4 and upper sprocket wheel 5 around being engaged with circulation link chain 11, on circulation link chain 11, there is specific links 19, specific links 19 connects round frame 6, there is crown sheave 13 on frame 1 top, on crown sheave 13 around hang wire rope 12, wire rope 12 one end connect polished rod eye 14, the other end connects upper tandem-driving bogie 8, it is characterized in that: between round frame 6 and wire rope 12, be connected with Split assembled tandem-driving bogie, Split assembled tandem-driving bogie is to be made up of lower tandem-driving bogie 7 and upper tandem-driving bogie 8, between lower tandem-driving bogie 7 and upper tandem-driving bogie 8, connect with flexible connecting member, in frame 1, there is chain tension mechanism, chain tension mechanism is to be made up of swelling device 10 and arc-shaped guide rail 9, wherein swelling device 10 is fixing sliding bearing seats 17 on upper tandem-driving bogie 8 tops, in the middle of sliding bearing seat 17, there is slide mass 15, slide mass 15 can slide in sliding bearing seat 17, there is expansion tightening wheel 16 slide mass 15 one end, the other end holds out against wheel 18, in frame 1, there is arc-shaped guide rail 9.
2. chain drive pumping unit according to claim 1, is characterized in that: swelling device 10 is to have cylindrical slide mass 21 in the middle of cylindrical shape sliding bearing seat 20, and there is expansion tightening wheel 22 cylindrical slide mass 21 one end, and the other end holds out against wheel 23.
3. chain drive pumping unit according to claim 1, is characterized in that: swelling device 10 is to have swallow-tail form slide mass 25 in the middle of swallow-tail form sliding bearing seat 24, and there is expansion tightening wheel 26 swallow-tail form slide mass 25 one end, and the other end holds out against wheel 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408085.8A CN103775030A (en) | 2012-10-24 | 2012-10-24 | Chain drive pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408085.8A CN103775030A (en) | 2012-10-24 | 2012-10-24 | Chain drive pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775030A true CN103775030A (en) | 2014-05-07 |
Family
ID=50567725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210408085.8A Pending CN103775030A (en) | 2012-10-24 | 2012-10-24 | Chain drive pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-10-24 CN CN201210408085.8A patent/CN103775030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101413387B (en) | Tower rack type combined transmission oil pumping machine | |
| CN201212382Y (en) | Pin commutation chain long stroke beam-pumping unit | |
| CN101532377B (en) | Pendulum-type energy-saving oil extractor | |
| CN108457624B (en) | Long-stroke oil pumping unit | |
| CN202690012U (en) | Non-commutative chain oil pumping unit for oil extraction of oilfield | |
| CN204920914U (en) | Type beam -pumping unit is directly driven at top | |
| CN101307683A (en) | Symmetrically balanced chain type oil pumping unit | |
| CN203248130U (en) | Chain drive pumping unit | |
| CN202280452U (en) | One-machine double-well oil pumping machine | |
| CN103775030A (en) | Chain drive pumping unit | |
| CN108533230B (en) | Tower type chain drive oil pumping unit | |
| CN1831293A (en) | Pulley type beam-pumping unit | |
| CN202767955U (en) | Swing rod type non-beam pumping unit | |
| CN202990988U (en) | Double-chain oil pumping unit | |
| CN208203237U (en) | Long stroke pumping unit | |
| CN203626750U (en) | Synchronous-belt-type beam-free pumping unit | |
| CN202100241U (en) | Slide block type positive torsion oil pumping unit | |
| CN101839118A (en) | Pumping unit chain and chain drive pumping unit | |
| CN102410001A (en) | Guide rod type walking-beam-free pumping unit | |
| CN202955196U (en) | Chain transmission reversing device of beam-pumping unit | |
| CN103256026A (en) | Single-horsehead pumping unit with chain traction mechanism | |
| CN202165056U (en) | Balanced type oil pumping machine with dustproof big gear wheel | |
| CN106522890B (en) | Double pendulum beam cable pulley type long stroke pumping unit | |
| CN207890937U (en) | A kind of cantilever design of cantilever crane | |
| CN106917606B (en) | Spring energy-storage off-load and flexible wheel base stroke-increasing pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |