CN2308707Y - Drilling rod clamping-fixing device - Google Patents
Drilling rod clamping-fixing device Download PDFInfo
- Publication number
- CN2308707Y CN2308707Y CN 97230331 CN97230331U CN2308707Y CN 2308707 Y CN2308707 Y CN 2308707Y CN 97230331 CN97230331 CN 97230331 CN 97230331 U CN97230331 U CN 97230331U CN 2308707 Y CN2308707 Y CN 2308707Y
- Authority
- CN
- China
- Prior art keywords
- clamping
- polished rod
- model
- utility
- slips
- 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
The utility model relates to a clamping and fixing device, and belongs to the special clamping tool for oil exploration. The utility model is used for connecting the oil pumping unit of the oil field with the polished rod of the wellhead and lifting the polished rod in the downhole operation. The utility model is composed of a clamping body, clamping tiles, a pin shaft, a connecting screw bolt, screw nuts and a cushion ring. The clamping body is divided into an upper connecting body, a main body and a lower connecting body which are movably connected by the pin shaft and are respectively lined with clamping tiles. The saw-tooth screw thread of the clamping tile forms a Y shape. The utility model has the advantages of simple structure, large tensile force resistance, no damage on the polished rod, flexible operation, etc.
Description
The utility model relates to a kind of oil-field oil pumper that is used for and is connected the polished rod fastener that promotes polished rod with underground work with wellhead polish rod, belongs to the special-purpose clamping tool that recovers the oil.
China onshore oil field rod-pumped well mouth polish rod side card adopts two arc shaped zigzag slips to carry out card is connected them with bolt then at present.The major defect of this polished rod fastener is: two in opposite directions the power of pressing from both sides can make polished rod after work a period of time, produce fracture herein, contact surface is less between slips and the polished rod simultaneously, can not block polished rod effectively, strip easily takes place take off accident.
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of and does not damage polished rod, and can tighten the novel polished rod fastener of polished rod.
The purpose of this utility model is achieved in that the polished rod fastener is made up of card body, slips, bearing pin, attachment bolt, nuts and washers, the card body is divided into connector, main body, following connector three parts, flexibly connect by bearing pin between them, stud with slips on them respectively, saw-tooth thread is " people " font on the slips.
The utlity model has following advantage: 1, the force direction that is subjected to polished rod changes three even directions into by in opposite directions two power, avoids polished rod to bear two drawbacks of rupturing easily of power in opposite directions under fluctuating load; 2, the saw-tooth thread on the slips changes " people " font into from arc shaped, has increased the contact surface of screw thread and polished rod, and the anti-pulling force of fastener is increased.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1: polished rod fastener structural representation; Fig. 2: the three-view diagram of slips;
Among the figure: connector under 1-main body, 2-slips, 3-bearing pin, the last connector of 4-, the 5-,
6-attachment bolt, 7-nut, 8-packing ring;
The polished rod fastener is made up of card body, slips 2, bearing pin 3, attachment bolt 6, nut 7 and packing ring 8, the card body is divided into connector 4, main body 1, following connector 5 three parts, flexibly connect by bearing pin 3 between them, on them, stud with slips 2 respectively, saw-tooth thread is " people " font on the slips 2, and last connector 4 also is connected by bearing pin 3 with attachment bolt 6, is screwed with nut 7 on the attachment bolt 6, have gasket groove on the following connector 5, packing ring 8 is embedded in the gasket groove.
During use the polished rod fastener is launched, then with main body 1 from a certain select location card to polished rod, last connector 4, following connector 5 turn to polished rod to close up by bearing pin 3 respectively, each slips 2 blocks respectively to polished rod simultaneously, turns the nut 7 on the attachment bolt 6, and whole fastener is blocked polished rod tightly, owing to adopted " people " font slip insert, so along with moving up and down of polished rod, contact more and more driving fit of meeting between fastener and the polished rod, guaranteed the security reliability of card polished rod.
Claims (1)
1, a kind of polished rod fastener is made up of card body, slips (2), bearing pin (3), attachment bolt (6), nut (7) and packing ring (8), it is characterized in that: the card body is divided into connector (4), main body (1), following connector (5) three parts, flexibly connect by bearing pin (3) between them, stud with slips (2) on them respectively, it is " people " font that slips (2) is gone up saw-tooth thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230331 CN2308707Y (en) | 1997-12-11 | 1997-12-11 | Drilling rod clamping-fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230331 CN2308707Y (en) | 1997-12-11 | 1997-12-11 | Drilling rod clamping-fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308707Y true CN2308707Y (en) | 1999-02-24 |
Family
ID=33942876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230331 Expired - Fee Related CN2308707Y (en) | 1997-12-11 | 1997-12-11 | Drilling rod clamping-fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308707Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182407A (en) * | 2011-04-08 | 2011-09-14 | 江苏如东通用机械有限公司 | Double-door casing elevator |
| CN102695845A (en) * | 2009-11-23 | 2012-09-26 | 布洛姆福斯修理有限公司 | Device for securing pipes having various diameters |
| CN108071357A (en) * | 2017-12-12 | 2018-05-25 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
-
1997
- 1997-12-11 CN CN 97230331 patent/CN2308707Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695845A (en) * | 2009-11-23 | 2012-09-26 | 布洛姆福斯修理有限公司 | Device for securing pipes having various diameters |
| CN102695845B (en) * | 2009-11-23 | 2015-04-22 | 布洛姆福斯石油工具有限公司 | Device for securing pipes having various diameters |
| CN102182407A (en) * | 2011-04-08 | 2011-09-14 | 江苏如东通用机械有限公司 | Double-door casing elevator |
| CN108071357A (en) * | 2017-12-12 | 2018-05-25 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
| CN108071357B (en) * | 2017-12-12 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |