CN203532646U - Crank stroke adjusting device - Google Patents
Crank stroke adjusting device Download PDFInfo
- Publication number
- CN203532646U CN203532646U CN201320683357.5U CN201320683357U CN203532646U CN 203532646 U CN203532646 U CN 203532646U CN 201320683357 U CN201320683357 U CN 201320683357U CN 203532646 U CN203532646 U CN 203532646U
- Authority
- CN
- China
- Prior art keywords
- bearing
- pin
- crank
- pivot pin
- shaft pin
- 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.)
- Expired - Lifetime
Links
- 238000005086 pumping Methods 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000019643 circumnutation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a crank stroke adjusting device. The crank stroke adjusting device comprises a crank, a bearing, a bearing seat, a seat end cover, a connecting rod, an eccentric shaft pin, a torsion resistant shaft pin and a connecting plate; the crank is provided with a pin hole; involute spline teeth are machined at the shaft head of the torsion resistant shaft pin; the torsion resistant shaft pin and the eccentric shaft pin are connected through the connecting plate and arranged in the pin hole; the eccentric shaft pin and the seat end cover are fixed through the bearing and the bearing seat; the eccentric shaft pin is matched with the connecting rod and accordingly the working of a pumping unit can be achieved. According to the crank stroke adjusting device, the eccentric shaft pin principle is adopted and accordingly the change of the working stroke of the pumping unit within a certain range is achieved. The crank stroke adjusting device has the advantages of being convenient to operate and rapid in operation.
Description
Technical field
The utility model relates to petroleum industry equipment, especially a kind of device regulating for pumping unit working stroke.
Background technique
In modern oil field, pumping unit sometimes will be done some adjustings to its working stroke in the course of the work according to demand, general adjusting is just can reach satisfied effect by reversing of position on crank, but can there are some defects in this mode, the point regulating on crank is on the one hand fixed, so the working stroke regulating discrete distribution number is within the specific limits also less, because oil production equipment is all heavy duty equipment, change position will certainly bother very much on the other hand.
Summary of the invention
The purpose of this utility model is on the basis of structural design that does not change former crank, the working stroke of pumping unit on oil field is done to the adjusting of small distance.
For realizing above-mentioned object the technical solution of the utility model, be achieved in that the utility model crank stroke adjuster, comprise crank, bearing, bearing bearing, pedestal end cap, connecting rod, eccentric pivot pin, antitorque pivot pin and involve plate, described crank is provided with pin-and-hole, the spindle nose of described antitorque pivot pin is processed with involute and spends strong tooth, described antitorque bearing pin is connected and is arranged in described pin-and-hole by the described plate that involves with described eccentric pivot pin, described eccentric pivot pin is by described bearing, bearing bearing and pedestal end cap are fixing coordinates pumping unit work with described connecting rod.
As preferably, the distance between described antitorque pivot pin center and described eccentric shaft bearing pin Tou center is 130mm.
As preferably, described pin-and-hole has 3.
The utility model adopts the principle of eccentric pivot pin, has realized the change within the specific limits of pumping unit working stroke, is characterized in easy to operate, quick.
Accompanying drawing explanation
Fig. 1: the utility model structural drawing.
Fig. 2: the utility model corner---stroke displacement diagram.
Embodiment
Below in conjunction with accompanying drawing explanation, the utility model is described further.
As Fig. 1, the utility model crank stroke adjuster, comprise crank (1), bearing (2), bearing bearing (3), pedestal end cap (4), connecting rod (5), eccentric pivot pin (6), antitorque pivot pin (7) and involve plate (8), described crank (1) is provided with pin-and-hole (9), the spindle nose of described antitorque pivot pin (7) is processed with involute and spends strong tooth, described antitorque bearing pin (7) is connected and is arranged in described pin-and-hole (9) by the described plate (8) that involves with described eccentric pivot pin (6), described eccentric pivot pin (6) is by described bearing (2), bearing bearing (3) and pedestal end cap (4) are fixing coordinates pumping unit work with described connecting rod, distance between described antitorque pivot pin center and described eccentric shaft bearing pin Tou center is 130mm, described pin-and-hole has 3.
Feature of the present utility model is to adopt eccentric connecting rod pivot pin, and the connecting rod pivot pin of this bias connecting rod axle center flexing arbor heart when self rotates is done circumnutation.According to this principle connecting rod axle center, can in certain distance, change the distance of crank rotating center, i.e. radius of gyration, thus change the upper and lower working stroke of sucker rod.
As Fig. 2, former connecting rod pivot pin of the present utility model is d-axis, now change eccentric pivot pin (6) into, so will inevitably produce a kind of antitorque moment after being subject to the power of connecting rod, this moment is connected by the antitorque pivot pin (7) that involves plate (8) and insert in pin-and-hole (9) by gradually the bloom spindle nose of strong tooth of being processed with of eccentric pivot pin (6) right-hand member, by the antitorque moment of antitorque pivot pin (7) generation, makes it balance.In the time will changing the stroke of pumping unit, as long as determine the distance that needs change, again from corner---stroke displacement diagram, select the angle (number of teeth number of rotating) of rotation, often turn its displacement of tooth and be and do not wait, the same connecting rod of rotation displacement (5) of eccentric pivot pin (6) to move up and down distance be not linear.As forwarding 1 tooth (i.e. 15 o) perpendicular distance to from 0 tooth, tooth changed 2.1mm, when forward 2 tooth perpendicular distances to from 0 tooth, changed 8.3mm, when forward 6 tooth perpendicular distances to from 0 tooth, changed 62, so when having determined the displacement distance of connecting rod (5), can only select suitable corner from schematic diagram is the number of teeth.
Owing to having adopted eccentric pivot pin (6), can make stroking distance that (1) three pin-and-hole of crank (9) can change from having expanded 124mm, by original 280mm, increase to 404mm.
Adjusting method of the present utility model: dismantle the pressing plate (10) of eccentric pivot pin (6) right-hand member and antitorque pivot pin (7) right-hand member pressing plate (11), take off and involve plate (8), eccentric rotation axis pin (6) is to the position of wishing, then install and involve plate (8), be loaded on pressing plate (10) and pressing plate (11), utilize fastening nuts, adjust complete.
Claims (3)
1. a crank stroke adjuster, comprise crank, bearing, bearing bearing, pedestal end cap and connecting rod, it is characterized in that, also comprise eccentric pivot pin, antitorque pivot pin and involve plate, described crank is provided with pin-and-hole, the spindle nose of described antitorque pivot pin is processed with involute and spends strong tooth, described antitorque bearing pin is connected and is arranged in described pin-and-hole by the described plate that involves with described eccentric pivot pin, and described eccentric pivot pin coordinates pumping unit to work by described bearing, bearing bearing and pedestal end cap are fixing with described connecting rod.
2. crank stroke adjuster according to claim 1, is characterized in that, the distance between described antitorque pivot pin center and described eccentric shaft bearing pin Tou center is 130mm.
3. crank stroke adjuster according to claim 1, is characterized in that, described pin-and-hole has 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683357.5U CN203532646U (en) | 2013-11-01 | 2013-11-01 | Crank stroke adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683357.5U CN203532646U (en) | 2013-11-01 | 2013-11-01 | Crank stroke adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532646U true CN203532646U (en) | 2014-04-09 |
Family
ID=50418857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320683357.5U Expired - Lifetime CN203532646U (en) | 2013-11-01 | 2013-11-01 | Crank stroke adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN110905452A (en) * | 2019-12-05 | 2020-03-24 | 西安石油大学 | Eccentric wheel type oil pumping machine |
-
2013
- 2013-11-01 CN CN201320683357.5U patent/CN203532646U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN107956772B (en) * | 2017-12-28 | 2023-06-06 | 东风商用车有限公司 | Eccentric pin structure |
| CN110905452A (en) * | 2019-12-05 | 2020-03-24 | 西安石油大学 | Eccentric wheel type oil pumping machine |
| CN110905452B (en) * | 2019-12-05 | 2022-02-18 | 西安石油大学 | Eccentric wheel type oil pumping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |