CN210460486U - Novel seal structure of gyration unit head for well rig - Google Patents
Novel seal structure of gyration unit head for well rig Download PDFInfo
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- CN210460486U CN210460486U CN201921563994.2U CN201921563994U CN210460486U CN 210460486 U CN210460486 U CN 210460486U CN 201921563994 U CN201921563994 U CN 201921563994U CN 210460486 U CN210460486 U CN 210460486U
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Abstract
The utility model discloses a novel seal structure of gyration unit head for well rig belongs to well rig gyration and moves the cutter head sealed field. A novel sealing structure of a rotary power head for a well drilling machine comprises a rotary head box body; the connecting sleeve is connected with the tail part of the rotary head box body through a fixing bolt; the sealing sleeve is connected to the connecting sleeve through a bolt; the connecting joint is connected to the tail part of the sealing sleeve; the main shaft is rotatably connected to the rotary head box body through a bearing, and the tail part of the main shaft penetrates through a central hole of the connecting sleeve and is rotatably connected with the sealing sleeve; the utility model discloses only need in proper order the assembly can, need not to adjust, the difficulty of installation and debugging that has significantly reduced need not to adopt adjusting bolt to adjust, reduces the artificial uncertainty of adjusting, reaches improvement production efficiency, extension seal life, reduces and leaks, reduces intensity of labour's effect.
Description
Technical Field
The utility model relates to a well rig gyration moves tool bit sealing technique field, especially relates to a novel seal structure of gyration unit head for well rig.
Background
In recent years, due to the continuous enhancement of environmental protection and energy saving awareness of various departments and the continuous increase of water conservancy requirements of industrial and agricultural production, various deep hole drilling machines widely applied to drilling wells, monitoring wells and other hole exploration engineering construction are more and more extensive in application range and deeper; because this kind of rig adopts the drilling of compressed air down-the-hole, along with the increase of degree of depth, the pressure and the corresponding increase of discharge capacity of compressed air, the corresponding improvement of swivel head rotational speed requires corresponding improvement to the afterbody sealing performance, and original structural seal is short-lived, and sealed easy the leaking, installation and debugging difficulty, shortcomings such as adjusting bolt easy break are more and more prominent, and the efficiency of construction is low, and intensity of labour is high, causes the waste of time manpower and material resources, increases construction cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems in the prior art and providing a novel sealing structure of a rotary power head for a well drilling machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel sealing structure of a rotary power head for a well drilling machine comprises
A rotary head box body;
the connecting sleeve is connected with the tail part of the rotary head box body through a fixing bolt;
the sealing sleeve is connected to the connecting sleeve through a bolt;
the connecting joint is connected to the tail part of the sealing sleeve;
the main shaft is rotatably connected to the rotary head box body through a bearing, and the tail part of the main shaft penetrates through a central hole of the connecting sleeve and is rotatably connected with the sealing sleeve;
the first sealing structure, the second sealing structure and the third sealing structure are formed by combining a rotary square ring and a T-shaped ring in a bidirectional rotating mode, the first sealing structure and the second sealing structure are arranged between a main shaft and a sealing sleeve, and the third sealing structure is arranged between the main shaft and a connecting sleeve.
Preferably, an O-shaped sealing ring is arranged between the connecting sleeve and the rotary head box body.
Preferably, the seal sleeve is provided with an annular groove, the tail of the spindle is provided with a groove, and the annular groove and the groove are in small clearance fit.
Preferably, a pressure relief and exhaust channel is reserved between the connecting sleeve and the sealing sleeve.
Preferably, a pinion is rotatably connected to the rotary head box body, a large gear meshed with the pinion is fixedly sleeved on the main shaft, a hydraulic motor is connected to the rotary head box body, and the driving end of the hydraulic motor is connected with the pinion.
Compared with the prior art, the utility model provides a novel seal structure of gyration unit head for well rig possesses following beneficial effect:
1. the novel sealing structure of the rotary power head for the water well drilling machine is characterized in that compressed air enters a central channel of a main shaft through a connecting joint to provide pressure and flow required by a bottom impactor, when drilling is carried out, the main shaft rotates to drive a drill rod to work, and at the moment, the main shaft rotates while a tail connecting part does not rotate; the connecting sleeve is connected with the tail part of the rotary head box body through a fixing bolt, a third sealing structure formed by a rotary square ring and a T-shaped ring in a two-way rotary combination is arranged between the connecting sleeve and the tail part of the main shaft, the purpose of two-way leakage prevention is achieved, the sealing sleeve is connected with the connecting sleeve through a bolt, a first sealing structure formed by a rotary square ring and a T-shaped ring in a two-way rotary combination is arranged between the sealing sleeve and the tail part of the main shaft, the purpose of double sealing leakage prevention is achieved, when a sealing element in the sealing sleeve fails, the sealing sleeve only needs to be disassembled and replaced, the technology only needs to be assembled in sequence, adjustment is not needed, the difficulty in installation and debugging is greatly reduced, adjustment by adopting an adjusting bolt is not needed, the uncertainty of artificial adjustment is reduced, the.
2. The novel sealing structure of the rotary power head for the well drilling machine is provided with an O-shaped sealing ring between the connecting sleeve and the rotary head box body, so that lubricating oil in the rotary head box body is prevented from leaking.
3. This novel seal structure of gyration unit head for well rig has seted up annular groove through the seal cartridge, and the main shaft afterbody is seted up flutedly, and annular groove and recess are the close clearance fit to play the sealed effect of mechanical labyrinth.
4. This novel seal structure of gyration unit head for well rig is through leaving pressure release exhaust passage between adapter sleeve and sealed cover, has avoided the sealed impact of high-pressure fluid to the adapter sleeve of leaking, increases sealed life-span, can in time discover simultaneously and leak, in time handles.
5. The novel sealing structure of the rotary power head for the well drilling machine drives the main shaft to rotate to work through the rotation of the hydraulic motor and the speed reduction of the small gear and the large gear in the rotary head box body during the well drilling of the drilling machine.
Drawings
Fig. 1 is a schematic structural view of a novel sealing structure of a rotary power head for a well drilling machine, which is provided by the utility model;
fig. 2 is the structural schematic diagram of a position a in fig. 1 of a novel sealing structure of a rotary power head for a well drilling machine.
In the figure: 1. a rotary head box body; 2. connecting sleeves; 3. a bearing; 4. a main shaft; 5. fixing the bolt; 6. sealing sleeves; 7. connecting a joint; 8. an annular groove; 9. a groove; 10. a first seal structure; 11. a second seal structure; 12. a third seal structure; 13. a hydraulic motor; 14. a pinion gear; 15. a bull gear; 16. a bolt; 17. an O-shaped sealing ring; 18. a pressure relief exhaust passage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a novel sealing structure of a rotary power head for a well drilling machine comprises
A rotary head box body 1;
the connecting sleeve 2 is connected with the tail part of the rotary head box body 1 through a fixing bolt 5;
the sealing sleeve 6 is connected to the connecting sleeve 2 through a bolt 16;
the connecting joint 7 is connected to the tail part of the sealing sleeve 6;
the main shaft 4 is rotatably connected to the rotary head box body 1 through a bearing 3, and the tail part of the main shaft 4 penetrates through a central hole of the connecting sleeve 2 and is rotatably connected with the sealing sleeve 6;
the drilling tool comprises a first sealing structure 10, a second sealing structure 11 and a third sealing structure 12 which are combined by bidirectional rotation of a rotary square ring and a T-shaped ring, wherein the first sealing structure 10 and the second sealing structure 11 are arranged between a main shaft 4 and a sealing sleeve 6, the third sealing structure 12 is arranged between the main shaft 4 and a connecting sleeve 2, and the compressed air or other flowing media enter a central channel of the main shaft 4 through a connecting joint 7 to provide pressure and flow required by a bottom impactor, when drilling work is carried out, the main shaft 4 rotates to drive a drill rod to work, and at the moment, the main shaft 4 rotates while a tail connecting part does not rotate; the connecting sleeve 2 is connected with the tail part of the rotary head box body 1 through a fixing bolt 5, a third sealing structure 12 formed by two-way rotation combination of a rotating square ring and a T-shaped ring is arranged between the connecting sleeve 2 and the tail part of the main shaft 4 to achieve the purpose of two-way leakage prevention, the sealing sleeve 6 is connected with the connecting sleeve 2 through a bolt 16, a first sealing structure 10 and a second sealing structure 11 formed by two-way rotation combination of the rotating square ring and the T-shaped ring are arranged between the sealing sleeve 6 and the tail part of the main shaft 4 to achieve the purpose of double sealing and, when the sealing element in the sealing sleeve 6 fails, the sealing sleeve 6 only needs to be disassembled and replaced, the technology only needs to be assembled in sequence without adjustment, the difficulty in installation and debugging is greatly reduced, adjustment by adopting an adjusting bolt is not needed, the uncertainty of artificial adjustment is reduced, and the effects of improving the production efficiency, prolonging the sealing service life, reducing leakage and reducing labor intensity are achieved.
An O-shaped sealing ring 17 is arranged between the connecting sleeve 2 and the rotary head box body 1, and the O-shaped sealing ring 17 is arranged between the connecting sleeve 2 and the rotary head box body 1, so that the lubricating oil in the rotary head box body 1 is prevented from leaking.
The sealing sleeve 6 is provided with an annular groove 8, the tail part of the main shaft 4 is provided with a groove 9, the annular groove 8 and the groove 9 are in small clearance fit, the sealing sleeve 6 is provided with the annular groove 8, the tail part of the main shaft 4 is provided with the groove 9, and the annular groove 8 and the groove 9 are in small clearance fit, so that the mechanical labyrinth seal effect is achieved.
A pressure relief exhaust channel 18 is reserved between the connecting sleeve 2 and the sealing sleeve 6, and the pressure relief exhaust channel 18 is reserved between the connecting sleeve 2 and the sealing sleeve 6, so that the impact of leaked high-pressure fluid on the sealing of the connecting sleeve 2 is avoided, the service life of the sealing is prolonged, and meanwhile, the leakage can be found in time and can be processed in time.
A pinion 14 is rotatably connected to the rotary head box body 1, a large gear 15 meshed with the pinion 14 is fixedly sleeved on the main shaft 4, a hydraulic motor 13 is connected to the rotary head box body 1, the driving end of the hydraulic motor 13 is connected with the pinion 14, and the main shaft 4 is driven to rotate to work through the reduction of the small gear 14 and the large gear in the rotary head box body 1 through the rotation of the hydraulic motor 13 during drilling of a drilling machine.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A novel sealing structure of a rotary power head for a well drilling machine is characterized by comprising
A rotary head box body (1);
the connecting sleeve (2) is connected with the tail part of the rotary head box body (1) through a fixing bolt (5);
the sealing sleeve (6) is connected to the connecting sleeve (2) through a bolt (16);
the connecting joint (7) is connected to the tail part of the sealing sleeve (6);
the main shaft (4) is rotatably connected to the rotary head box body (1) through a bearing (3), and the tail part of the main shaft (4) penetrates through a central hole of the connecting sleeve (2) and is rotatably connected with the sealing sleeve (6);
the two-way rotary combined first sealing structure (10), second sealing structure (11) and third sealing structure (12) are formed by a rotary square ring and a T-shaped ring, the first sealing structure (10) and the second sealing structure (11) are arranged between a main shaft (4) and a sealing sleeve (6), and the third sealing structure (12) is arranged between the main shaft (4) and a connecting sleeve (2).
2. The novel sealing structure of the rotary power head for the well drilling machine is characterized in that an O-shaped sealing ring (17) is arranged between the connecting sleeve (2) and the rotary head box body (1).
3. The novel sealing structure of the rotary power head for the well drilling machine is characterized in that an annular groove (8) is formed in the sealing sleeve (6), a groove (9) is formed in the tail portion of the main shaft (4), and the annular groove (8) and the groove (9) are in small clearance fit.
4. The novel sealing structure of the rotary power head for the well drilling machine is characterized in that a pressure relief and exhaust channel (18) is reserved between the connecting sleeve (2) and the sealing sleeve (6).
5. The novel sealing structure of the rotary power head for the well drilling machine is characterized in that a small gear (14) is rotatably connected to the rotary head box body (1), a large gear (15) meshed with the small gear (14) is fixedly sleeved on the main shaft (4), a hydraulic motor (13) is connected to the rotary head box body (1), and the driving end of the hydraulic motor (13) is connected with the small gear (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563994.2U CN210460486U (en) | 2019-09-19 | 2019-09-19 | Novel seal structure of gyration unit head for well rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563994.2U CN210460486U (en) | 2019-09-19 | 2019-09-19 | Novel seal structure of gyration unit head for well rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210460486U true CN210460486U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921563994.2U Active CN210460486U (en) | 2019-09-19 | 2019-09-19 | Novel seal structure of gyration unit head for well rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210460486U (en) |
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2019
- 2019-09-19 CN CN201921563994.2U patent/CN210460486U/en active Active
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