CN104196521B - A kind of rotary valve mud pulse generator - Google Patents
A kind of rotary valve mud pulse generator Download PDFInfo
- Publication number
- CN104196521B CN104196521B CN201410364482.9A CN201410364482A CN104196521B CN 104196521 B CN104196521 B CN 104196521B CN 201410364482 A CN201410364482 A CN 201410364482A CN 104196521 B CN104196521 B CN 104196521B
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- ring
- armature spindle
- pushing out
- shaped seal
- seal ring
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- Sealing Of Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a kind of rotary valve mud pulse generator, including outer barrel, armature spindle and seal assembly, oil filler point is provided with outer barrel, armature spindle is arranged in outer barrel by a bearing, seal assembly is arranged on armature spindle, seal assembly is slidably mounted on armature spindle, seal assembly includes outside V-shaped seal ring, inner side V-shaped seal ring, lateral branch pushing out ring, medial branch pushing out ring and sliding sleeve, lateral branch pushing out ring and medial branch pushing out ring are located at the both sides of sliding sleeve, outside V-shaped seal ring be arranged between sliding sleeve and lateral branch pushing out ring and and armature spindle, sealing is formed between the inwall of outer barrel, inner side V-shaped seal ring be arranged between sliding sleeve and medial branch pushing out ring and and armature spindle, sealing is formed between the inwall of outer barrel, the lip of outside V-shaped seal ring and the lip of inner side V-shaped seal ring are oppositely arranged.It is rotary valve mud pulse generator better tightness in the present invention, more reliable.
Description
Technical field
The present invention relates to oil drilling equipment field, in particular to a kind of rotary valve mud pulse generator.
Background technology
Rotary valve mud pulse generator produces pressure pulse signal by its rotor relative to the rotation of stator, by data
Signal is sent to ground.The rotor of rotary valve mud pulse generator can quickly rotate, and can produce the pulse of upper frequency,
With transmission speed higher.But due to the limitation of rotary valve mud pulse generator self structure, its armature spindle and outer barrel
There is quickly rotation junction, and its sealing is poor easily to be damaged by the erosion of drilling fluid.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of better tightness, more reliable rotary valve mud arteries and veins
Rush generator.
Therefore, technical scheme is as follows：
Rotary valve mud pulse generator, including outer barrel, armature spindle and seal assembly, oiling is provided with the outer barrel
Hole, the armature spindle is arranged in the outer barrel by a bearing, and the seal assembly is arranged on the armature spindle, is made described
Outer barrel is interior, the side of the close described oil filler point of the seal assembly forms annular seal space, and the seal assembly is in the armature spindle
On be slidably mounted, the seal assembly include outside V-shaped seal ring, inner side V-shaped seal ring, lateral branch pushing out ring, medial branch
Pushing out ring and sliding sleeve, the lateral branch pushing out ring and the medial branch pushing out ring are located at the both sides of the sliding sleeve, the outside V-shaped seal ring
Sealing is formed between the sliding sleeve and the lateral branch pushing out ring and between the armature spindle, the inwall of the outer barrel,
The inner side V-shaped seal ring be arranged between the sliding sleeve and the medial branch pushing out ring and with the armature spindle, the outer barrel
Formed between inwall and sealed, the lip of the lip of the outside V-shaped seal ring and the inner side V-shaped seal ring is oppositely arranged, institute
Sliding sleeve is stated for limiting the distance between the outside V-shaped seal ring and the inner side V-shaped seal ring so that the outside V-type is close
The space with preset volume, the lateral branch pushing out ring, the medial support are formed between seal and the inner side V-shaped seal ring
Ring is respectively used to be supported the outside V-shaped seal ring and the inner side V-shaped seal ring, on the armature spindle, described
The both sides of seal assembly are additionally provided with spacing ring, the sliding scale for limiting the seal assembly.
Wherein, it is mandrel connector, is motor；Keyway can be provided with the sliding sleeve, be set on the armature spindle
There is positioning key, the positioning key and keyway cooperation are oriented to the sliding sleeve.
In the technical scheme, the rotary valve mud pulse generator is had using disymmetry Formula V type ring structure
Good sealing, extreme pressure lubricant can be closed in mud pulse generator outside drilling fluid when being used to offset work
Pressure, reduces the frictional resistance of sealing device, reduces power consumption, improves service life, improves sealing and reliability.
Further, between the lateral branch pushing out ring and the armature spindle, the medial branch pushing out ring and the armature spindle it
Between be additionally provided with O-ring, sealing can be better ensured that.
Further, the oil filler point is unidirectional oil filler point, can effectively prevent lubricating oil from flowing backwards.
Brief description of the drawings
Fig. 1 is the structural representation of rotary valve mud pulse generator according to embodiments of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
As shown in figure 1, rotary valve mud pulse generator according to an embodiment of the invention, including outer barrel 2, armature spindle 1
With seal assembly 17, oil filler point 11 is provided with the outer barrel 2, the armature spindle 1 is arranged on the outer barrel by a bearing 7
In 2, the seal assembly 17 is arranged on the armature spindle 1, makes the outer barrel 2 interior, the seal assembly 17 near described
The side of oil filler point 11 forms annular seal space 9, and the seal assembly 17 is slidably mounted on the armature spindle 1, the sealing
Component 17 includes outside V-shaped seal ring 4, inner side V-shaped seal ring 5, lateral branch pushing out ring 3, medial branch pushing out ring 6 and sliding sleeve 12, described
Lateral branch pushing out ring 3 and the medial branch pushing out ring 6 are located at the both sides of the sliding sleeve 12, and the outside V-shaped seal ring 4 is arranged on described
Sealing is formed between sliding sleeve 12 and the lateral branch pushing out ring 3 and between the armature spindle 1, the inwall of the outer barrel 2, it is described interior
Side V-shaped seal ring 5 be arranged between the sliding sleeve 12 and the medial branch pushing out ring 6 and with the armature spindle 1, the outer barrel 2
Formed between inwall and sealed, the lip of the lip of the outside V-shaped seal ring 4 and the inner side V-shaped seal ring 5 is oppositely arranged,
The sliding sleeve 12 is used to limit the distance between the outside V-shaped seal ring 4 and the inner side V-shaped seal ring 5 so that described outer
The space with preset volume, the lateral branch pushing out ring 3, institute are formed between side V-shaped seal ring 4 and the inner side V-shaped seal ring 5
State medial branch pushing out ring 6 to be respectively used to be supported the outside V-shaped seal ring 4 and the inner side V-shaped seal ring 5, described
On armature spindle 1, the both sides of the seal assembly 17 be additionally provided with spacing ring 14, the slip model for limiting the seal assembly 17
Enclose.
Wherein, 8 be mandrel connector, 10 be motor；Keyway 16 can be provided with the sliding sleeve 12, in the armature spindle
It is provided with positioning key 15 on 1, the positioning key 15 and the keyway 16 coordinate the sliding sleeve 12 is oriented to.
In the technical scheme, the rotary valve mud pulse generator is had using disymmetry Formula V type ring structure
Good sealing, extreme pressure lubricant can be closed in mud pulse generator outside drilling fluid when being used to offset work
Pressure, reduces the frictional resistance of sealing device, reduces power consumption, improves service life, improves sealing and reliability.
Further, between the lateral branch pushing out ring 3 and the armature spindle 1, the medial branch pushing out ring 6 and the armature spindle
O-ring 13 is additionally provided between 1, sealing can be better ensured that.
Further, the oil filler point 11 is unidirectional oil filler point, can effectively prevent lubricating oil from flowing backwards.
Rotary valve mud pulse generator in the installation and debugging of ground, by the oil filler point 11 on outer barrel 2 to close
Envelope chamber 9 injection lubricating oil, the internal pressure of annular seal space 9 is more than external pressure, and lubricating oil will promote inner side V-shaped seal ring 5 to rotor
Axle 1 shrinks, and lubricating oil enters the hollow region formed between outside V-shaped seal ring 4, inner side V-shaped seal ring 5 and outer barrel 2；Lubrication
Oil is further injected into will promote outside V-shaped seal ring 4 to be stretched to outer barrel 2, and the edge of outside V-shaped seal ring 4 is by pressure
Effect is lower to be close together with outer barrel 2, and outside V-shaped seal ring 4 is held by lateral branch pushing out ring 3, is prevented from lubricating oil spilling.Together
When, the lubricating oil pressure in the hollow region of seal assembly 17 acts on the concave side of outside V-shaped seal ring 4, promotes sealing group
Part 17 is slided along armature spindle 1, can be finally limited ring 14 and be blocked, when O-ring 13 makes 17 outside Slideslip of seal assembly, lubrication
Oil does not overflow nearby from armature spindle 1.
Rotary valve mud pulse generator in working order in, when outside drilling liquid pressure is more than the profit inside annular seal space 9
Lubricating oil pressure, outside drilling fluid will promote outside V-shaped seal ring 4 to be shunk to armature spindle 1, and the outside drilling fluid of a part enters outside
The hollow region formed between V-shaped seal ring 4, inner side V-shaped seal ring 5 and outer barrel, until external pressure is interior with hollow region
Portion's pressure is equal；Outside drilling fluid further promotes inner side V-shaped seal ring 5 to be stretched to outer barrel 2, the edge of inner side V-shaped seal ring 5
To be close together with outer barrel 2 under the effect of the pressure, inner side V-shaped seal ring 5 is held by medial branch pushing out ring 6, be prevented from outer
Portion's drilling fluid enters annular seal space 9.Meanwhile, the pressure in the hollow region of seal assembly 17 acts on inner side V-shaped seal ring 5
Concave side, promotes seal assembly 17 to be extruded the lubricating oil in annular seal space 9 along the inside Slideslip of armature spindle 1, until interior external pressure
Dynamic balance is limited ring 14 and blocks, and when O-ring 13 makes core obturator inside Slideslip, drilling fluid is not from armature spindle 1
Nearby enter annular seal space 9.
Lubricating oil can either reduce outside V-shaped seal ring 4 and inner side V-shaped seal ring 5 in rotary valve mud pulse generator
With the frictional resistance between outer barrel 2, the pressure differential between outside and annular seal space 9 can be balanced again, further reduce seal assembly
17 frictional resistance.
In sum, present disclosure is not limited in the above embodiments, and those skilled in the art can be
Propose other embodiments within technological guidance's thought of the invention, but this embodiment be included in the scope of the present invention it
It is interior.
Claims (4)
1. a kind of rotary valve mud pulse generator, including outer barrel (2), armature spindle (1) and seal assembly (17), in the outer barrel
(2) oil filler point (11) is provided with, the armature spindle (1) is by a bearing (7) interior, sealing installed in the outer barrel (2)
Component (17) makes in the outer barrel (2), the close described oiling of the seal assembly (17) on the armature spindle (1)
The side in hole (11) forms annular seal space (9), it is characterised in that the seal assembly (17) on the armature spindle (1) slidably
Ground is installed, and the seal assembly (17) includes outside V-shaped seal ring (4), inner side V-shaped seal ring (5), lateral branch pushing out ring (3), interior
Collateral pushing out ring (6) and sliding sleeve (12), the lateral branch pushing out ring (3) and the medial branch pushing out ring (6) are located at the sliding sleeve respectively
(12) both sides, the outside V-shaped seal ring (4) between the sliding sleeve (12) and the lateral branch pushing out ring (3) and with
Sealing is formed between the armature spindle (1), the inwall of the outer barrel (2), the inner side V-shaped seal ring (5) is installed in the cunning
Sealing is formed between set (12) and the medial branch pushing out ring (6) and between the armature spindle (1), the inwall of the outer barrel (2),
The lip of the outside V-shaped seal ring (4) and the lip of the inner side V-shaped seal ring (5) are oppositely arranged, the sliding sleeve (12)
For limiting the distance between the outside V-shaped seal ring (4) and described inner side V-shaped seal ring (5) so that the outside V-type is close
The space with preset volume, the lateral branch pushing out ring (3), institute are formed between seal (4) and the inner side V-shaped seal ring (5)
Medial branch pushing out ring (6) is stated to be respectively used to be supported the outside V-shaped seal ring (4) and the inner side V-shaped seal ring (5),
On the armature spindle (1), the both sides of the seal assembly (17) be additionally provided with spacing ring (14), for limiting the sealing group
The sliding scale of part (17).
2. rotary valve mud pulse generator according to claim 1, it is characterised in that in the lateral branch pushing out ring (3)
O-ring (13) is additionally provided between the armature spindle (1), between the medial branch pushing out ring (6) and the armature spindle (1).
3. rotary valve mud pulse generator according to claim 1, it is characterised in that set in the sliding sleeve (12)
There is keyway (16), positioning key (15) is provided with the armature spindle (1), the positioning key (15) and keyway (16) coordinate to institute
Sliding sleeve (12) is stated to be oriented to.
4. rotary valve mud pulse generator according to any one of claim 1 to 3, it is characterised in that the oiling
Hole (11) is unidirectional oil filler point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364482.9A CN104196521B (en) | 2014-09-18 | 2014-09-18 | A kind of rotary valve mud pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364482.9A CN104196521B (en) | 2014-09-18 | 2014-09-18 | A kind of rotary valve mud pulse generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196521A CN104196521A (en) | 2014-12-10 |
| CN104196521B true CN104196521B (en) | 2017-06-16 |
Family
ID=52081869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410364482.9A Active CN104196521B (en) | 2014-09-18 | 2014-09-18 | A kind of rotary valve mud pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196521B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644351A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Continuous wave pulse generator wind tunnel experiment device |
| CN108105253B (en) * | 2018-01-25 | 2020-06-12 | 宁波明隆精密机械有限公司 | Motor shaft core |
| CN108999607B (en) * | 2018-07-10 | 2021-11-23 | 中国石油集团渤海钻探工程有限公司 | Control valve nipple of drilling fluid pulse generator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7180826B2 (en) * | 2004-10-01 | 2007-02-20 | Teledrill Inc. | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel |
| US8474548B1 (en) * | 2005-09-12 | 2013-07-02 | Teledrift Company | Measurement while drilling apparatus and method of using the same |
| CN201513173U (en) * | 2009-09-15 | 2010-06-23 | 郑州士奇测控技术有限公司 | Wireless while-drilling pulse generator |
| CN202125294U (en) * | 2011-03-09 | 2012-01-25 | 中国石化集团胜利石油管理局钻井工艺研究院 | Rotary underground slurry pulse generator |
| CN103015990A (en) * | 2012-12-26 | 2013-04-03 | 西安思坦仪器股份有限公司 | Downhole mud positive pulse generator |
| CN103334741A (en) * | 2013-07-15 | 2013-10-02 | 东营植诚机电技术开发有限公司 | Minor-diameter pulse generating device |
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2014
- 2014-09-18 CN CN201410364482.9A patent/CN104196521B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104196521A (en) | 2014-12-10 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210823 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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