CN201335087Y - Anti-rotary crank pin device of oil pumping unit - Google Patents
Anti-rotary crank pin device of oil pumping unit Download PDFInfo
- Publication number
- CN201335087Y CN201335087Y CNU2008201244732U CN200820124473U CN201335087Y CN 201335087 Y CN201335087 Y CN 201335087Y CN U2008201244732 U CNU2008201244732 U CN U2008201244732U CN 200820124473 U CN200820124473 U CN 200820124473U CN 201335087 Y CN201335087 Y CN 201335087Y
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- CN
- China
- Prior art keywords
- crank pin
- crank
- flat side
- pumping unit
- oil pumping
- 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 - Fee Related
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Abstract
Disclosed is an anti-rotary crank pin device of an oil pumping unit, which is used for connecting a crank and a connecting rod in a beam oil pumping unit in an oil field. One end of a crank pin roll serves as a bearing end and the other end is a conical body provided with a bolt at the external end. A washer and fastening nuts are arranged on the bolt of the crank pin roll. The anti-rotary crank pin device is characterized in that a raised step is arranged between the bearing end and the conical body of the crank pin roll, and a diplohedron is arranged on the raised step. A rotation prevention groove corresponding to the diplohedron is arranged at the front end of a mounting hole of the crank pin roll of the crank of the oil pumping unit and the diplohedron can be embedded into the rotation prevention groove. The anti-rotary crank pin device has the advantages that the anti-rotary crank pin device can effectively prevent the crank pin 1 from rotating during work, improves the rotation prevention performance of the crank pin roll of the oil pumping unit, improves the reliability of the oil pumping unit and reduces the accident potential of the equipment.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly beam pumping unit is a kind of crank and pin means of beam pumping unit.
Background technique
Beam pumping unit is the mechanical oil recovery equip ment of the extensive employing in each oil field both at home and abroad.Beam pumping unit is made up of parts such as support, crank, crank pin, retarder, connecting rod, crossbeam bearing support, walking beam, walking beam supporting base, horse heads.The working principle of beam pumping unit is: utilize support, crank, crank pin, retarder, connecting rod, crossbeam bearing support, walking beam, walking beam supporting base to form a cover crank swing-bar mechanism, the rotation motion of crank is changed into the oscillating motion of walking beam.Wherein crank pin is a connection rotatingshaft important between crank and the connecting rod.
At present, the structure that connects owing to conventional crank pin is: consult Fig. 1.One end of crank pin 1 is the bearing end, is connected with connecting rod by bearing at the bearing end.The other end of crank pin 1 is a cone, and there is bolt the outer end of cone.Cone match between the cone of tapered sleeve 2 and crank pin 1 has packing ring and tightening nut 3 on the bolt of crank pin 1.When by adjusting the pretightening force of tightening nut 3, control tapered sleeve 2 cooperates the conical surface to produce with crank pin 1 friction torque, play the purpose that prevents that crank pin 1 from rotating.Adopt the oil pumping machine crank pin shaft device of above-mentioned conventional structure, the friction torque deficiency of friction taper sleeve 2 and crank pin 1 in the pumping unit operation process, often occurs, cause crank pin 1 to rotate, even the catastrophe failure that causes crank pin 1 fracture, comes off.
The model utility content
The purpose of this utility model is: provide a kind of anti-transition the Crank Pin on Pumping Units device, beam type oil pumping machine crank is connected with connecting rod, and improves Crank Pin on Pumping Units anti-rotation performance, improve the reliability of pumping unit, reduce maintenance cost and maintenance load, reduce equipment accident hidden danger.Overcome the deficiency that the conventional crank pin of beam-pumping unit rotates easily, comes off or ruptures.
The technical solution adopted in the utility model is: the anti-Crank Pin on Pumping Units device that makes the transition, mainly to form by crank pin, tapered sleeve, nut, crank and shaft end nut locking mechanism, and an end of crank pin is the bearing end, is connected with connecting rod by bearing at the bearing end.The other end of crank pin is a cone, and there is bolt the outer end of cone.Be with a tapered sleeve on the cone.Packing ring and tightening nut are arranged on the bolt of crank pin.Adopt cone match between crank pin and the tapered sleeve, tightening nut locking.By the pretightening force of control tightening nut, the friction torque that control cooperates the conical surface to produce plays the effect that prevents that crank pin from rotating.It is characterized in that: the step of a projection is arranged between the bearing end of crank pin and described cone, flat side is arranged on the step of projection.Described flat side is that an arcuate section is removed in processing on the ring-shaped step of projection.Described flat number formulary amount can be two, and two flat sides are parallel.Described flat number formulary amount can be four, and promptly the cross section of Tu Qi step is a square.Described flat number formulary amount can be six, and promptly the cross section of Tu Qi ring-shaped step is a regular hexagon.Crank pin mounting hole front end at oil pumping machine crank has the corresponding anti-rotation groove with flat side.Flat can being mounted in the anti-rotation groove played the effect that prevents that crank pin from rotating.
In order to prevent that tapered sleeve from rotating, at an end of tapered sleeve the step of a projection is arranged, flat side is arranged on the step of projection.Described flat number formulary amount can be two, and two flat sides are parallel.Described flat number formulary amount can be four, and promptly the cross section of Tu Qi step is a square.Described flat number formulary amount can be six, and promptly the cross section of Tu Qi ring-shaped step is a regular hexagon.In the crank pin mounting hole rear end of oil pumping machine crank the corresponding anti-rotation groove with flat side is arranged.Flat can being mounted in the anti-rotation groove played the effect that prevents that tapered sleeve from rotating.
Loosening at work in order to prevent nut, be fixed with the shaft end nut locking mechanism in the bolt end of crank pin.
The beneficial effects of the utility model: the anti-Crank Pin on Pumping Units device that makes the transition has dual rotation prevention structure.The frictional force that crank pin and tapered sleeve cone match produce is main rotation prevention structure; It is auxiliary rotation prevention structure that the anti-rotation groove of crank cooperates with the flat side of crank pin.Dual rotation prevention structure can prevent effectively that crank pin from can not rotate when work, effectively improve Crank Pin on Pumping Units anti-rotation performance, improves the reliability of pumping unit, reduces maintenance cost and maintenance load, reduces equipment accident hidden danger.
Description of drawings
Fig. 1 is conventional crank pin and crank linkage structure structural profile schematic representation.
Fig. 2 is the utility model anti-transition of Crank Pin on Pumping Units apparatus structure generalized section.
Fig. 3 is the utility model crank pin 1 structural representation.
Fig. 4 is the sectional view of Fig. 3, is that flat side's 6 quantity are two sectional view.
Fig. 5 is the sectional view of Fig. 3, is that flat side's 6 quantity are six sectional view.
Fig. 6 is the sectional view of Fig. 3, is that flat side's 6 quantity are four sectional view.
Fig. 7 is the utility model tapered sleeve 2 structural profile schematic representation.
Fig. 8 is the left view of Fig. 5, is that flat side's 6 quantity are two left view.
Among the figure, 1. crank pin, 2. tapered sleeve, 3. nut, 4. crank, 5. shaft end nut locking mechanism.
Embodiment
Embodiment 1: with a flat side 6 for orthohexagonal anti-transition the Crank Pin on Pumping Units device be example, the utility model is described in further detail.
Consult Fig. 1.The utility model anti-transition of Crank Pin on Pumping Units device mainly is made up of crank pin 1, tapered sleeve 2, nut 3, crank 4 and shaft end nut locking mechanism 5.One end of crank pin 1 is the bearing end, is connected with connecting rod by bearing at the bearing end.The other end of crank pin 1 is a cone, and there is bolt the outer end of cone.Be with a tapered sleeve 2 on the cone.Packing ring and tightening nut 3 are arranged on the bolt of crank pin 1.Consult Fig. 3.The step that a projection is arranged between the bearing end of crank pin 1 and the described cone has flat side 6 on the step of projection.Consult Fig. 5.Flat side 6 is regular hexagons.Consult Fig. 2.Crank pin 1 mounting hole front end at oil pumping machine crank 4 has and the flat side's 6 corresponding regular hexagon anti-rotation grooves of regular hexagon.Screwing the flat side 6 in nut 3 backs is mounted in the anti-rotation groove.Regular hexagon flat side 6 cooperate with the regular hexagon anti-rotation groove, plays crank pin 1 anti-rotation effect.
Consult Fig. 2.Be with a tapered sleeve 2 on the cone.Consult Fig. 7.The structure of tapered sleeve 2 is steps that an end of tapered sleeve 2 has a projection, and flat side 6 is arranged on the step of projection.Consult Fig. 8.Described flat side 6 quantity are two, and two flat sides 6 are parallel to each other.Have and two flat side's 6 equidistant anti-rotation grooves in the crank pin 1 mounting hole rear end of oil pumping machine crank 4.Screwing the flat side 6 in nut 3 backs is mounted in the anti-rotation groove.Play the effect that prevents that tapered sleeve 2 from rotating equally.
Embodiment 2: substantially the same manner as Example 1, difference is: consult Fig. 6.Flat side 6 is squares.Consult Fig. 2.Crank pin 1 mounting hole front end at oil pumping machine crank 4 has and the flat side's 6 corresponding square anti-rotation grooves of square.
Be fixed with a shaft end nut locking mechanism 5 in the bolt end of crank pin 1.Those skilled in the art can finish nut check mechanism 5.
Claims (6)
1, a kind of anti-transition the Crank Pin on Pumping Units device, mainly by crank pin (1), tapered sleeve (2), nut (3), crank (4) and shaft end nut locking mechanism (5) are formed, one end of crank pin (1) is the bearing end, be connected with connecting rod by bearing at the bearing end, the other end of crank pin (1) is a cone, there is bolt the outer end of cone, be with a tapered sleeve (2) on the cone, packing ring and tightening nut (3) are arranged on the bolt of crank pin (1), it is characterized in that: the step that a projection is arranged between the bearing end of crank pin (1) and described cone, flat side (6) is arranged on the step of projection, crank pin (1) mounting hole front end in oil pumping machine crank (4) has the corresponding anti-rotation groove with flat side (6), and flat side (6) can be mounted in the anti-rotation groove.
2, anti-transition according to claim 1 the Crank Pin on Pumping Units device, it is characterized in that: described flat side (6) quantity is two, and two flat sides (6) are parallel.
3, anti-transition according to claim 1 the Crank Pin on Pumping Units device, it is characterized in that: described flat side (6) quantity is four, promptly the cross section of Tu Qi step is a square.
4, anti-transition according to claim 1 the Crank Pin on Pumping Units device, it is characterized in that: described flat side (6) quantity is six, and promptly the cross section of Tu Qi ring-shaped step is a regular hexagon.
5, according to claim 1,2,3 or 4 described anti-transition the Crank Pin on Pumping Units device, it is characterized in that: the step that a projection is arranged at an end of tapered sleeve (2), flat side (6) is arranged on the step of projection, and described flat side (6) quantity is two, and two flat sides (6) are parallel.
6, according to claim 1,2,3 or 4 described anti-transition the Crank Pin on Pumping Units device, it is characterized in that: be fixed with shaft end nut locking mechanism (5) in the bolt end of crank pin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244732U CN201335087Y (en) | 2008-12-11 | 2008-12-11 | Anti-rotary crank pin device of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244732U CN201335087Y (en) | 2008-12-11 | 2008-12-11 | Anti-rotary crank pin device of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335087Y true CN201335087Y (en) | 2009-10-28 |
Family
ID=41286738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201244732U Expired - Fee Related CN201335087Y (en) | 2008-12-11 | 2008-12-11 | Anti-rotary crank pin device of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335087Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075470A (en) * | 2013-01-18 | 2013-05-01 | 南京工程学院 | Novel cycloidal-pin wheel speed reducer |
| CN105240506A (en) * | 2015-10-19 | 2016-01-13 | 德瑞石油装备（青岛）有限公司 | Crank connecting structure of pumping unit |
| CN105909682A (en) * | 2016-07-05 | 2016-08-31 | 陈建平 | Crank pin assembly for oil pumping unit in oil field |
| CN107725005A (en) * | 2017-10-27 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | The connecting rod of horizontal oil pumper and the attachment means of crank |
-
2008
- 2008-12-11 CN CNU2008201244732U patent/CN201335087Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075470A (en) * | 2013-01-18 | 2013-05-01 | 南京工程学院 | Novel cycloidal-pin wheel speed reducer |
| CN105240506A (en) * | 2015-10-19 | 2016-01-13 | 德瑞石油装备（青岛）有限公司 | Crank connecting structure of pumping unit |
| CN105909682A (en) * | 2016-07-05 | 2016-08-31 | 陈建平 | Crank pin assembly for oil pumping unit in oil field |
| CN107725005A (en) * | 2017-10-27 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | The connecting rod of horizontal oil pumper and the attachment means of crank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20100111 |