CN202768756U - Guide rod mechanism switchover-free type mechanical reversing apparatus - Google Patents
Guide rod mechanism switchover-free type mechanical reversing apparatus Download PDFInfo
- Publication number
- CN202768756U CN202768756U CN 201220031807 CN201220031807U CN202768756U CN 202768756 U CN202768756 U CN 202768756U CN 201220031807 CN201220031807 CN 201220031807 CN 201220031807 U CN201220031807 U CN 201220031807U CN 202768756 U CN202768756 U CN 202768756U
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- China
- Prior art keywords
- guide rod
- gear wheel
- crank
- slide block
- large gear
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Abstract
A guide rod mechanism switchover-free type mechanical reversing apparatus is disclosed and is a guide rod mechanism consisting of a large gear wheel, a large gear wheel shaft, a crank, a slide block, a guide rod, an input shaft, an output shaft, a small gear wheel, and a machine frame. The guide rod mechanism switchover-free type mechanical reversing apparatus is characterized in that a cylindrical guide rod is welded on a root circle part of the large gear wheel and the large gear wheel shaft, the input shaft which is placed between the large gear wheel shaft and a small gear wheel shaft is mounted on the machine frame through bearings, an end of the input shaft is connected with a speed reducer, the crank is fixed to the other end of the input shaft, the crank and the slide block on the guide rod form a revolute pair, and the slide block and the guide rod form a moving pair; and when power is input, the input shaft moves in a circle following the speed reducer in the same direction with the speed reducer, the slide block is driven by the crank to move in a circle, the slide block moves on the guide rod, therefore the guide rod is driven by the slide block to swing back and forth in a reciprocating way, the large gear wheel is driven by the guide rod to swing back and forth in a reciprocating way, the large gear wheel engages with the small gear wheel, the length ratio of the crank to the guide rod is 1 : (2.5-3.0), and the transmission ratio of the large gear wheel to the small gear wheel is 1/6-1/7. The beneficial effects of the guide rod mechanism switchover-free type mechanical reversing apparatus are that the guide rod mechanism is applied to the switchover-free type reversing apparatus, the size of the reversing apparatus in an oil pumping machine is reduced, quick-return characteristics are realized, and stability is improved.
Description
Technical field:
The utility model relates to the petroleum equipment field, and particularly a kind of guide-bar mechanism is applicable to long stroke pumping unit without the switching type mechanical commutation device.
Background technique:
In the Oilfield Development Engineering of petroleum industry, along with the exploitation in oil field enters the intermediary and later stages, keep the stable and high yields in oil field, enough liquid measures (large pump extract) of adopting just need to be arranged; On the other hand, for exploitation hyposmosis, low-grade oil reservoir, need small displacement deeply to take out (little pump is taken out deeply), produce under larger pressure reduction to keep oil reservoir.The quantity of thick oil well and many gas wells also constantly increases in addition, and these objective factors all require our accelerated development long stroke pumping unit.Oil field employed long stroke pumping unit tool machine reversing arrangement exists the shortcomings such as volume is large, reliability is low at present, therefore one of the popularization of the needed long stroke pumping unit of China's oil field development and subject matter that development faces namely lack the reliable changement that is fit to China's national situation.
Summary of the invention:
In order to improve the reliability of mechanical switching device, reduce the volume of reversing arrangement, realize the advantages such as quickreturn characteristics, the utility model proposes a kind of guide-bar mechanism without switching reversing arrangement, separate the deficiency that the existing mechanical switching device of determining exists, this reversing arrangement has not only reduced the volume of existing machinery reversing arrangement, and can improve the stability of existing machinery reversing arrangement, realizes quickreturn characteristics.
This device utilizes guide-bar mechanism and gear mechanism, just converting the continuous rotation of input shaft to gearwheel, anti-reciprocally swinging, this guide-bar mechanism is without the switching type mechanical commutation device, it is by gearwheel, Large Gear Shaft During, crank, slide block, guide rod, input shaft, output shaft, the guide-bar mechanism that small gear and frame consist of, it is characterized in that: at root circle position and cylindricality guide rod of Large Gear Shaft During welding of gearwheel, input shaft is installed on the frame between Large Gear Shaft During and pinion shaft and by bearing, one end connection reducer of input shaft, the other end fixed crank, slide block on crank and the guide rod forms revolute pair, and slide block and guide rod form sliding pair; When power is inputted, input shaft is done unidirectional circular movement with retarder, crank band movable slider moves in a circle, slide block is mobile at guide rod, drive guide rod and do positive and negative reciprocally swinging, guide rod drives gearwheel and does positive and negative reciprocally swinging, gearwheel and pinion, the length ratio of crank and guide rod is 1: (2.5～3.0), the velocity ratio of gearwheel and small gear are 1/6～1/7.
The scheme that its technical problem that solves the utility model adopts is: at root circle position and cylindricality guide rod of Large Gear Shaft During welding of gearwheel, input shaft is installed on the frame between Large Gear Shaft During and pinion shaft and by bearing, one end connection reducer of input shaft, the other end fixed crank, slide block on crank and the guide rod forms revolute pair, and slide block and guide rod form sliding pair; When power was inputted, input shaft was done unidirectional circular movement with retarder, and crank band movable slider moves in a circle, slide block is mobile at guide rod, drive guide rod and do positive and negative reciprocally swinging, guide rod drives gearwheel and does positive and negative reciprocally swinging, gearwheel and pinion.
The beneficial effects of the utility model are guide-bar mechanism to be applied to can reduce the volume of reversing arrangement in the pumping unit without switching reversing arrangement realization quickreturn characteristics, raising stability.
Description of drawings:
Fig. 1 is that the utility model guide-bar mechanism is without switching type mechanical commutation device plan view.
Fig. 2 is that the utility model guide-bar mechanism is without the A-A sectional view of switching type mechanical commutation device.
In the drawings, 1. gearwheel, 2. Large Gear Shaft During, 3. crank, 4. slide block, 5. guide rod, 6. input shaft, 7. output shaft, 8. small gear, 9. frame.
Embodiment:
In Fig. 1, guide-bar mechanism without the switching type mechanical commutation device on, near the root circle of gearwheel (1) and Large Gear Shaft During (a 2) welding cylindricality guide rod (5), input shaft (6) is positioned between Large Gear Shaft During (2) and the output shaft (7) and by bearing and is installed on the frame (9), one end connection reducer of input shaft (6), the other end fixed crank (3), slide block (4) on crank (3) and the guide rod (5) forms revolute pair, and slide block (4) forms sliding pair with guide rod (5).When power is inputted, input shaft (6) is done unidirectional circular movement with retarder, crank (3) band movable slider (4) moves in a circle, slide block is mobile at guide rod (5), drive guide rod (5) and do positive and negative reciprocally swinging, guide rod (5) drives gearwheel (1) and does positive and negative reciprocally swinging, gearwheel (1) and small gear (8) engagement, the commutation process of realization small gear (8).
The length ratio that obtains crank (3) and guide rod (5) through optimal design is 1: (2.5～3.0), the velocity ratio of gearwheel (1) and small gear (8) is 1/6～1/7 because input shaft (6) is put in Large Gear Shaft During (2) and output shaft (7) between this device can reduce the volume of mechanical commutation device.The utility model is applied to can reduce behind the long stroke pumping unit energy consumption and the volume of pumping unit.
Claims (1)
1. a guide-bar mechanism is without the switching type mechanical commutation device, it is the guide-bar mechanism that is made of gearwheel, Large Gear Shaft During, crank, slide block, guide rod, input shaft, output shaft, small gear and frame, it is characterized in that: at root circle position and cylindricality guide rod of Large Gear Shaft During welding of gearwheel, input shaft is installed on the frame between Large Gear Shaft During and pinion shaft and by bearing, one end connection reducer of input shaft, the other end fixed crank, slide block on crank and the guide rod forms revolute pair, and slide block and guide rod form sliding pair; When power is inputted, input shaft is done unidirectional circular movement with retarder, crank band movable slider moves in a circle, slide block is mobile at guide rod, drive guide rod and do positive and negative reciprocally swinging, guide rod drives gearwheel and does positive and negative reciprocally swinging, gearwheel and pinion, the length ratio of crank and guide rod is 1: (2.5～3.0), the velocity ratio of gearwheel and small gear are 1/6～1/7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220031807 CN202768756U (en) | 2012-01-15 | 2012-01-15 | Guide rod mechanism switchover-free type mechanical reversing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220031807 CN202768756U (en) | 2012-01-15 | 2012-01-15 | Guide rod mechanism switchover-free type mechanical reversing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768756U true CN202768756U (en) | 2013-03-06 |
Family
ID=47775332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220031807 Expired - Lifetime CN202768756U (en) | 2012-01-15 | 2012-01-15 | Guide rod mechanism switchover-free type mechanical reversing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853043A (en) * | 2012-01-12 | 2013-01-02 | 中国石油大学(华东) | Non-switching type mechanical reversing device of guide rod mechanism |
-
2012
- 2012-01-15 CN CN 201220031807 patent/CN202768756U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853043A (en) * | 2012-01-12 | 2013-01-02 | 中国石油大学(华东) | Non-switching type mechanical reversing device of guide rod mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140521 |
|
| RGAV | Abandon patent right to avoid regrant |