CN2837490Y - Integrated leakage-free slurry basket - Google Patents
Integrated leakage-free slurry basket Download PDFInfo
- Publication number
- CN2837490Y CN2837490Y CN 200520112148 CN200520112148U CN2837490Y CN 2837490 Y CN2837490 Y CN 2837490Y CN 200520112148 CN200520112148 CN 200520112148 CN 200520112148 U CN200520112148 U CN 200520112148U CN 2837490 Y CN2837490 Y CN 2837490Y
- Authority
- CN
- China
- Prior art keywords
- umbrella
- slurry
- mud
- box body
- casing
- 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
Abstract
The utility model relates to power equipment for petroleum and natural gas drilling wells, namely an integrated leakage-free slurry umbrella. The utility model comprises a box body (1) and a slurry umbrella (2), wherein the slurry umbrella (2) is arranged on the box body (1) and connected with the box body (1). The original spindle sleeve (21) and the original separate slurry umbrella are combined into one part or still are two parts, but the two parts are tightly matched through machinery assembly to make the slurry not pass through, and the spindle sleeve is tightly matched with a spindle to prevent the slurry from entering. A labyrinth seal structure is made between the outer side of the integrated slurry umbrella and the box body. As the integrated slurry umbrella rotates following the spindle, the slurry is swung out of the sealing part under the centrifugal action and can not flow back into the box body, therefore a path where the slurry enters into the box body is thoroughly eliminated.
Description
Technical field
The utility model is used for petroleum and natural gas drilling well power-equipment, specifically, is that monolithic does not have the mud of leakage umbrella.
Background technology
In drillng operation, the high-pressure slurry of borehole pump output is transplanted on the top of top driving device or water tap by hose, is transplanted on the shaft bottom downwards by the washing pipe packing.When changing the washing pipe packing, it is excessive to have mud.In order to prevent that mud from entering the top driving device reduction box of bottom or the casing of water tap, generally place a mud umbrella, and between main shaft and casing, sealing is set on casing top.
The hermetically-sealed construction of separate type mud umbrella is all adopted in the casing top seal of the reduction box of top-drive drilling and conventional water tap both at home and abroad at present, promptly independently places a belt mud umbrella on casing top, and between main shaft and casing sealing is set.
The mud umbrella can block the passage of rotatory sealing, thereby prevent the leakage of a large amount of mud to a certain extent, but because the floating pendulum of this mud umbrella is on casing top, can not thoroughly block the passage that mud leaks, thereby it is inoperative to the leakage of micro-mud, especially exist the situation lower seal effect of wearing and tearing bad through the sealing between long period running main shaft and the casing, cause mud can leak into box house.After lubrication oil in the mud of seepage and the casing mixes, destroyed lubricating in the casing, influenced the operate as normal of casing inner bearing, having a significant impact application life.
The reduction box of top driving device is equipped with set of gears and bearing, and is higher to the requirement that seals and lubricate, thereby the structure of conventional mud umbrella can not satisfy the instructions for use of top driving device.
Summary of the invention
The purpose of this utility model is to provide a kind of passage that mud enters top driving device reduction box and water tap casing of eliminating, and improves the monolithic of the validity of sealing and does not have the mud of leakage umbrella.
The purpose of this utility model is achieved in that and comprises casing 1, mud umbrella 2 that be equipped with mud umbrella 2 on casing 1, casing 1 is connected with mud umbrella 2.
The utility model also adopts following technical scheme:
Collar bush 21 and mud umbrella 2 are global facility.
Collar bush 21 and mud umbrella 2 are by closely being connected.
1 of the outside of mud umbrella 2 and casing are tightly connected.
Advantage of the present utility model is: in order to eliminate the passage that mud enters casing, original collar bush and two parts of separate type mud umbrella are merged into a part, perhaps still remain two parts, but realize closely cooperating by the machinery assembling, make the mud can not be therebetween from passing through, and make between collar bush and main shaft and to be tight fit, prevent that mud from entering.Make labyrinth sealing between the outside of monolithic mud umbrella and casing, because monolithic mud umbrella is with main axis rotation, can mud be thrown away the sealing position by centrifugal action, mud can not flow backwards and enter casing, thereby has thoroughly eliminated the passage that mud enters casing.
In addition, owing to there is not slurry channel, seal originally no longer needs, the also corresponding cancellation of grease fitting for the seal setting originally.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, be equipped with mud umbrella 2 on casing 1, casing 1 is connected with mud umbrella 2, and collar bush 21 and mud umbrella 2 are merged into a part, though perhaps be that two parts are realized closely cooperating mud can not be passed through by the machinery assembling.1 of the outside of mud umbrella 2 and casing are made labyrinth sealing, and mud can not flow backwards and enter casing.
The utility model is a kind of mud umbrella that is used for top-drive drilling and conventional drilling water tap.This utility model is that a kind of drilling mud that prevents enters the hermetically-sealed construction that reduction box or water tap casing 1 are driven in the top, be characterized in: mud umbrella 2 and rotary main shaft cover 21 are made monolithic construction, there is not rotatory sealing between collar bush 21 and the casing 1, thereby thoroughly eliminated the passage that drilling mud enters casing 1, avoid mud to enter casing, prolong the application life of casing inner bearing greatly, improved reliability of products.
Claims (3)
1, monolithic does not have the mud of leakage umbrella, comprises casing (1), mud umbrella (2), and it is characterized in that: be equipped with mud umbrella (2) on casing (1), casing (1) is connected with mud umbrella (2), and collar bush (21) and mud umbrella (2) are global facility.
2, monolithic according to claim 1 does not have the mud of leakage umbrella, and it is characterized in that: collar bush (21) closely is connected with mud umbrella (2).
3, monolithic according to claim 1 does not have the mud of leakage umbrella, it is characterized in that: be tightly connected between the outside of mud umbrella (2) and casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112148 CN2837490Y (en) | 2005-07-01 | 2005-07-01 | Integrated leakage-free slurry basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112148 CN2837490Y (en) | 2005-07-01 | 2005-07-01 | Integrated leakage-free slurry basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837490Y true CN2837490Y (en) | 2006-11-15 |
Family
ID=37391973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520112148 Expired - Lifetime CN2837490Y (en) | 2005-07-01 | 2005-07-01 | Integrated leakage-free slurry basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837490Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577855A (en) * | 2018-11-19 | 2019-04-05 | 中国海洋石油集团有限公司 | A kind of top drive guard system |
| CN113124162A (en) * | 2019-12-31 | 2021-07-16 | 四川宏华石油设备有限公司 | Combined sealing structure for top drive |
-
2005
- 2005-07-01 CN CN 200520112148 patent/CN2837490Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577855A (en) * | 2018-11-19 | 2019-04-05 | 中国海洋石油集团有限公司 | A kind of top drive guard system |
| CN109577855B (en) * | 2018-11-19 | 2021-03-09 | 中国海洋石油集团有限公司 | Top drive protection system |
| CN113124162A (en) * | 2019-12-31 | 2021-07-16 | 四川宏华石油设备有限公司 | Combined sealing structure for top drive |
| CN113124162B (en) * | 2019-12-31 | 2024-04-09 | 四川宏华石油设备有限公司 | Combined sealing structure for top drive |
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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 |
Expiration termination date: 20150701 Granted publication date: 20061115 |
|
| EXPY | Termination of patent right or utility model |