CN202007644U - Semi-closed ram structure of ram blowout preventer - Google Patents
Semi-closed ram structure of ram blowout preventer Download PDFInfo
- Publication number
- CN202007644U CN202007644U CN2011201018517U CN201120101851U CN202007644U CN 202007644 U CN202007644 U CN 202007644U CN 2011201018517 U CN2011201018517 U CN 2011201018517U CN 201120101851 U CN201120101851 U CN 201120101851U CN 202007644 U CN202007644 U CN 202007644U
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- ram
- flashboard
- semicircle
- packing unit
- 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 petroleum drilling device, in particular to a workover well control device in the petroleum drilling, in particular to a semi-closed ram structure of a ram blowout preventer. The semi-closed ram structure of a ram blowout preventer is characterized by comprising a pressing plate, a compression bolt, a ram body and a sealing rubber core, wherein a positioning boss with a big upper part and a small lower part is arranged on the surface on which the pressing plate is in contact with the ram body up and down and at the right end of the compression bolt; a positioning groove with a big upper part and a small lower part is arranged at a position which is on the contact surface of the ram body and the pressing plate, and corresponds to the position of the positioning boss; the sealing rubber core is compressed by the pressing plate and the ram body; and after being positioned by the positioning boss and the positioning groove, the pressing plate and the ram body are fastened by the compression bolt. The utility model provides the semi-closed ram structure of the ram blowout preventer. Not only can the sealing effect be ensured, but also the service life is prolonged. The semi-closed ram structure of the ram blowout preventer is also convenient to disassemble and maintain.
Description
Technical field
The utility model relates to the well workover well control device in the oil drilling device, particularly oil drilling, and a kind of ram preventer of definitely saying so partly seals flashboard structure.
Background technology
The ram preventer that uses in the well workover well control device in the oil drilling partly seals in the structure of flashboard at present, and for guaranteeing sealing effectiveness, its packing unit magnitude of interference is generally all bigger, quick abrasion, and application life is short.
Summary of the invention
The purpose of this utility model is: provide a kind of ram preventer partly to seal flashboard structure, can guarantee sealing effectiveness, improve application life again, the dismounting maintenance is also more convenient.
The technical scheme that its technical problem that solves the utility model adopts is: designed a kind of ram preventer and partly sealed flashboard structure, it is characterized in that: it comprises pressing plate, hold-down bolt, flashboard body, packing unit, pressing plate has on the up big and down small positioning boss with the right-hand member that the surface that the flashboard body contacts up and down is positioned at hold-down bolt, the positioning boss correspondence position that the flashboard body contacts with pressing plate has up big and down small detent, packing unit is compressed by pressing plate and flashboard body, and pressing plate and the flashboard body back, boss and detent location that is positioned is fastening by hold-down bolt.
Described packing unit connects into the semicircle enclosed construction by interior semicircle and outer semicircle by connection strap, interior semicircle and outer semicircle concentric, and outer semicircle is thicker than interior semicircle.
The big outer little conical surface in the surface that described flashboard body, pressing plate contact with packing unit has.
The utility model has the advantages that: because the surface that pressing plate contacts with the flashboard body has up big and down small positioning boss, the big outer little conical surface in the surface that contacts with packing unit has.The surface that the flashboard body contacts with pressing plate has up big and down small detent, the big outer little conical surface in the surface that contacts with packing unit has.Packing unit is compressed by pressing plate and flashboard body.Pressing plate and back, flashboard body location are fastening by fastening bolt.Good sealing effect, long service life, dismounting is easy to maintenance.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is a structure elevation of the present utility model;
Fig. 2 is a structure vertical view of the present utility model;
Fig. 3 is the packing unit structural representation.
Among the figure: 1, pressing plate; 2, hold-down bolt; 3, flashboard body; 4, packing unit; 5, the conical surface;
6, connection strap; 7, positioning boss; 8, detent; 9, interior semicircle; 10, outer semicircle.
The specific embodiment
As shown in Figure 3, packing unit 4 connects into the semicircle enclosed construction by interior semicircle 9 and outer semicircle 10 by connection strap 6, interior semicircle 9 and outer semicircle 10 concentrics, outer semicircle 10 is thicker than interior semicircle 9, and the surface that flashboard body 3, pressing plate 1 contacts with packing unit 4 has the interior little conical surface 5 greatly outward.
The packing unit 4 initial magnitudes of interference are very little, can reduce on the ram preventer housing sealing surface during closing well to packing unit 4 wearing and tearing.When the pit shaft internal pressure increased, pressing plate 1 pressurized was close to flashboard body 3, and crush seal glue core 4 makes packing unit 4 interference quantitative changes big, has strengthened sealing effectiveness.The pit shaft internal pressure descends when driving a well, and packing unit 4 returns to the initial magnitude of interference, has reduced on the ram preventer housing sealing surface to packing unit 4 wearing and tearing.Thereby 4 application lifes of packing unit have been prolonged.
Claims (3)
1. a ram preventer partly seals flashboard structure, it is characterized in that: it comprises pressing plate (1), hold-down bolt (2), flashboard body (3), packing unit (4), pressing plate (1) has on the up big and down small positioning boss (7) with the right-hand member that the surface that flashboard body (3) contacts up and down is positioned at hold-down bolt (2), positioning boss (7) correspondence position that flashboard body (3) contacts with pressing plate (1) has up big and down small detent (8), packing unit (4) is compressed by pressing plate (1) and flashboard body (3), and be positioned boss (7) and detent (8) location of pressing plate (1) and flashboard body (3) is afterwards fastening by fastening bolt (2).
2. a kind of ram preventer according to claim 1 partly seals flashboard structure, it is characterized in that: described packing unit (4) connects into the semicircle enclosed construction by interior semicircle (9) and outer semicircle (10) by connection strap (6), interior semicircle (9) and outer semicircle (10) concentric, outer semicircle (10) is thicker than interior semicircle (9).
3. a kind of ram preventer according to claim 1 partly seals flashboard structure, it is characterized in that: the big outer little conical surface (5) in the surface that described flashboard body (3), pressing plate (1) contact with packing unit (4) has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018517U CN202007644U (en) | 2011-04-10 | 2011-04-10 | Semi-closed ram structure of ram blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018517U CN202007644U (en) | 2011-04-10 | 2011-04-10 | Semi-closed ram structure of ram blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007644U true CN202007644U (en) | 2011-10-12 |
Family
ID=44749302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201018517U Expired - Fee Related CN202007644U (en) | 2011-04-10 | 2011-04-10 | Semi-closed ram structure of ram blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422038A (en) * | 2015-12-16 | 2016-03-23 | 常熟市虹桥铸钢有限公司 | Wedge disc body |
-
2011
- 2011-04-10 CN CN2011201018517U patent/CN202007644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422038A (en) * | 2015-12-16 | 2016-03-23 | 常熟市虹桥铸钢有限公司 | Wedge disc body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20150410 |
|
| EXPY | Termination of patent right or utility model |