CN202755938U - Rotating control head provided with buffer structure - Google Patents
Rotating control head provided with buffer structure Download PDFInfo
- Publication number
- CN202755938U CN202755938U CN 201220323303 CN201220323303U CN202755938U CN 202755938 U CN202755938 U CN 202755938U CN 201220323303 CN201220323303 CN 201220323303 CN 201220323303 U CN201220323303 U CN 201220323303U CN 202755938 U CN202755938 U CN 202755938U
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- China
- Prior art keywords
- control head
- glue core
- rubber core
- tube
- core cylinder
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- Expired - Fee Related
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Abstract
A rotating control head provided with a buffer structure comprises a shell body and a rubber core tube which is placed in the shell body. The rubber core tube is connected with the shell body in rotating mode through a bearing. The bottom end of the rubber core tube is fixedly connected with a rubber core, and the outer side of the upper end of the rubber core tube is fixedly connected with a sleeve. The rubber core tube and the sleeve are fastened and locked together through a clamp. The rotating control head provided with the buffer structure is characterized in that the rubber core tube is divided into an inner layer and an outer layer which are respectively formed by an inner shell and an outer shell, an annular space is formed between the inner shell and the outer shell of the rubber core tube, and a vulcanized rubber layer is placed in the annular space. According to the rotating control head provided with the buffer structure, the rubber core tube is in the form of an inner tube and an outer tube, and rubber is arranged between the inner tube and the outer tube to enable the inner tube and the outer tube to be vulcanized and bonded into a whole. The rotating control head is enabled to have a good buffer function on impact force, and therefore harmful effects of impacts and vibrations on the bearing in the rotating control head are eliminated, requirements of actual production are met, and the service life of the bearing is prolonged so that the service life of the whole rotating control head is guaranteed.
Description
Technical field
The utility model relates to the swivel control head in the oilfield drilling implement, particularly with the swivel control head of buffer structure.
Background technology
Swivel control head in the oilfield drilling implement (RCH) is the key device of under balance pressure drilling, controlled pressure drilling, geothermal drilling, CBM Drilling.Utilize it and other ground installation can realize nozzling while drilling.Use swivel control head to become a kind of important means that reduces drilling cost, improves oil well output.Reducing drilling cost mainly is to realize by the means such as consumption that improve mud in rate of penetration, the non-drilling time of minimizing and the under balance pressure drilling process.Sometimes, by reducing mud damage to increase oil well output.Except under balance pressure drilling, emphasize safety and environmental protection at those, and the area that usually can not carry out under balance pressure drilling, swivel control head also begins to be applied, and sometimes also can use swivel control head such as ocean platform.
In the prior art, bearing in the swivel control head is a vitals in swivel control head, all be to bear by bearing by cut down output living axial force, drilling rod eccentric force and other relevant active forces of well during drilling well, utilize it can realize the sealing, High Rotation Speed etc. of glue core.Since during drillng operation when making a trip and drill bit when creeping into, and all can produce skew when drilling rod and well center decentraction, this moment, drilling rod all can produce serious rigid shock and vibration, and this has very large injury to the bearing that is in High Rotation Speed in the swivel control head.Damage accumulation after this impact must have influence on the application life of swivel control head inner bearing.And have certain difficulty in the on-the-spot maintenance to the swivel control head rotating part of exploitation.
Summary of the invention
Technical problem to be solved in the utility model is to overcome existing defective in the above-mentioned prior art, and a kind of swivel control head with buffer structure is provided, and is intended to protect the bearing in the swivel head, it is avoided or reduces vibratory impulse and the adverse effect that produces.
The utility model has adopted following technical proposal to solve its technical problem: a kind of swivel control head with buffer structure, comprise housing, and put glue core cylinder among housing, this glue core cylinder is by bearing and housing and is rotationally connected shape, glue core cylinder bottom is fixedly connected with the glue core, the outside, upper end is fixedly connected with a sleeve, and with this sleeve by the fastening locking of clip, it is characterized in that: described glue core cylinder is divided into the inside and outside two-layer of inner casing and shell formation, between glue core cylinder inner casing and shell are two-layer, form annular space, be equipped with the vulcanized rubber layer in this annular space.
The utility model is arranged to inside and outside bitubular form with the glue core cylinder in the swivel control head, makes the certain annular space of formations between inside and outside two, and is equipped with rubber in this annular space centre, makes it inner/outer tube is vulcanized and is bonded to an integral body.This flexibly connecting of the present utility model, make swivel control head good cushioning effect be arranged impact power, overcome the adverse effect that shock and vibration produce the bearing in the swivel head, satisfied needs of production, prolong the application life of bearing, thereby guaranteed the application life of swivel control head integral body.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is glue core-tube structure schematic diagram described in the utility model.
Fig. 3 be among Fig. 2 A-A to sectional drawing.
Fig. 4 be among Fig. 2 A-A to the sectional drawing of another embodiment.
Fig. 5 be among Fig. 2 A-A to the sectional drawing of an embodiment again.
Each sequence number is expressed as respectively among the figure:
1-housing, 2-bearing, 3-sleeve, 4-clip, 5-glue core cylinder, 5.1-glue core cylinder inner casing, 5.2-vulcanized rubber layer, 5.3-glue core cylinder shell, 6-glue core.
The specific embodiment
The utility model will be further described below in conjunction with embodiment and accompanying drawing.
With reference to Fig. 1, swivel control head with buffer structure described in the utility model, comprise housing 1, and put glue core cylinder 5 among housing 1, this glue core cylinder 5 is by bearing 2 and housing 1 and is rotationally connected shape, glue core cylinder 5 bottoms are fixedly connected with glue core 6, and the upper end outside is fixedly connected with a sleeve 3, and with this sleeve 3 by 4 fastening lockings of clip.
With reference to Fig. 1 or Fig. 2, glue core cylinder 5 described in the utility model is divided into the inside and outside two-layer of glue core cylinder inner casing 5.1 and glue core cylinder shell 5.3 formations, between glue core cylinder inner casing 5.1 and shell 5.3 are two-layer, form annular space, be equipped with vulcanized rubber layer 5.2 in this annular space.
Because the annular space between glue core cylinder inner core 5.1 and the urceolus 5.3 partly has been filled rubber, and it is vulcanized make it to be bonded to an integral body with inner/outer tube, like this, just form a kind of flexibly connecting between glue core cylinder inner core 5.1 and the urceolus 5.3, and flexibly connect impact by good alleviation release action, avoid thus the serious impact of under High Rotation Speed, being brought by drilling rod and the destruction of vibrating the swivel control head inner bearing, can greatly prolong the application life of swivel control head.
With reference to Fig. 3, Fig. 4, Fig. 5, owing to be to be connected by vulcanized rubber between the glue core cylinder inner/outer tube, so the ability of transmitting torque weakens to some extent, in order to remedy this defective, the utility model radially all is equipped with corresponding concavo-convex stupefied in the medial surface of the lateral surface of described glue core cylinder inner casing 5.1, glue core cylinder shell 5.3 and vulcanized rubber layer 5.2 inside and outside two sides.With reference to Fig. 3, this embodiment will make the ten bisection grooves that are similar to spline at the internal diameter of glue core cylinder inner core 5.1 external diameters, glue core cylinder urceolus 5.3, then utilize the stupefied transferable moment of torsion of rubber that strengthens of these concavo-convex zigzags, to guarantee the High Rotation Speed of swivel control head.Certainly, this concavo-convex stupefied shape that also can be arranged to as shown in Fig. 4, Fig. 5, these all belong to the utility model design philosophy.
In a word, with the swivel control head of buffer, its effect is that the vulcanized rubber between the glue core cylinder inner/outer tube that utilizes of maximum possible comes the shock loading that the swivel control head in the High Rotation Speed is subject to is discharged.The annular space structural optimization of vulcanized rubber material and inner/outer tube then can farthest guarantee the validity of the High Rotation Speed of swivel control head.
Claims (2)
1. swivel control head with buffer structure, comprise housing, and put glue core cylinder among housing, this glue core cylinder is by bearing and housing and is rotationally connected shape, and glue core cylinder bottom is fixedly connected with the glue core, and the outside, upper end is fixedly connected with a sleeve, and with this sleeve by the fastening locking of clip, it is characterized in that: described glue core cylinder is divided into inside and outside two-layer that inner casing and shell consist of, and forms annular space between glue core cylinder inner casing and shell are two-layer, is equipped with the vulcanized rubber layer in this annular space.
2. the swivel control head with buffer structure according to claim 1 is characterized in that: the inside and outside two sides of the medial surface of the lateral surface of described glue core cylinder inner casing, glue core cylinder shell and vulcanized rubber layer radially all are equipped with corresponding concavo-convex stupefied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323303 CN202755938U (en) | 2012-07-05 | 2012-07-05 | Rotating control head provided with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323303 CN202755938U (en) | 2012-07-05 | 2012-07-05 | Rotating control head provided with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755938U true CN202755938U (en) | 2013-02-27 |
Family
ID=47735125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220323303 Expired - Fee Related CN202755938U (en) | 2012-07-05 | 2012-07-05 | Rotating control head provided with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470219A (en) * | 2013-09-22 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Winter rubber core passing auxiliary heating device for double-rubber-core rotating head |
-
2012
- 2012-07-05 CN CN 201220323303 patent/CN202755938U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470219A (en) * | 2013-09-22 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Winter rubber core passing auxiliary heating device for double-rubber-core rotating head |
| CN103470219B (en) * | 2013-09-22 | 2016-06-01 | 中国石油集团西部钻探工程有限公司 | Two glue core rotating head winter rubber core assisted heating device |
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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: 20130227 Termination date: 20210705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |