CN105781441A - Double-seal enclosed universal shaft - Google Patents
Double-seal enclosed universal shaft Download PDFInfo
- Publication number
- CN105781441A CN105781441A CN201610285682.4A CN201610285682A CN105781441A CN 105781441 A CN105781441 A CN 105781441A CN 201610285682 A CN201610285682 A CN 201610285682A CN 105781441 A CN105781441 A CN 105781441A
- Authority
- CN
- China
- Prior art keywords
- fixed
- strand
- rolling groove
- living
- double
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 210000000867 larynx Anatomy 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/05—Swivel joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention relates to the technical field of petroleum drilling and well cementing, in particular to a double-seal enclosed universal shaft. The double-seal enclosed universal shaft comprises an enclosed connecting rod, wherein the upper end and the lower end of the enclosed connecting rod are connected with universal joints with the same structures respectively; the universal joints comprise movable hinges, locking sleeves, clamping rings, ball seats, transmission columns, ball heads, fixed hose clamps, sealing sleeves and rectangular sealing rings; the ball seats are fixed to the bottoms of the inner cavities of the movable hinges; the ball heads are matched with the ball seats; a rolling groove is formed around the end part of the enclosed connecting rod in the circumferential direction; the transmission columns are arranged between the rolling groove and the inner cavities of the movable hinges; the rectangular sealing rings are arranged between the rolling groove and the inner cavities; the bottoms of the rectangular sealing rings are fixed through the clamping rings; the locking sleeves are in threaded connection with the movable hinges; the bottoms of the locking sleeves are used for positioning and fixing the clamping rings and the rectangular sealing rings. The double-seal enclosed universal shaft has the advantages of simple structure, easiness in machining and assembly, convenience in accessory replacement, long service life and low production cost.
Description
Technical field
The present invention relates to oil drilling cementing technology field, particularly relate to a kind of closed everything axle of double containment.
Background technology
At present, the helicoid hydraulic motor used in the drilling engineering of petroleum gas, is provide power with slush pump, mud is medium, enters in screw motor, and the motion mode of motor is off motion, in order to eccentric motion is changed into dead axle motion, we add universal drive shaft between power transmission shaft and motor.General universal drive shaft goalpost list seals structure, and connecting rod is open architecture, and this structure is with oils and fats for lubricant, and it is internal that sealing sheath stops mud to enter strand of living, and it is smooth and easy that open architecture makes universal drive shaft swing, without jam phenomenon.But owing to, in drilling process, universal drive shaft amplitude of fluctuation is excessive, sealing shroud larynx hoop lost efficacy and came off or the unexpected breakage of rubber sheath, causes strand seal failure of living, causes inter deterioration to increase, and service life reduces；Taking off post in open architecture has axial sliding friction and friction displacement big with strand of living, open type connecting rod respectively, and the rate of wear is very fast, and the inefficacy that makes to take off post cannot play transmission moment of torsion.
Summary of the invention
It is an object of the invention to overcome the deficiency of above-mentioned technology, and a kind of closed everything axle of double containment is provided, improve sealing effectiveness, improve the service life taken off post.
The present invention for achieving the above object, by the following technical solutions:
A kind of closed everything axle of double containment, it is characterised in that: including closed link, the two ends up and down of described closed link are connected to the everything joint that structure is identical；Described everything joint include living strand, lock sleeve, trim ring, ball seat, take off post, bulb, fixed larynx hoop, sealing shroud and rectangular seal；Described ball seat is fixed on the intracavity bottom of described strand of living, described bulb coordinates with described ball seat, described bulb is fixed on the top of described closed link, and the end loops week of described closed link is provided with rolling groove, described in take off post be arranged on described rolling groove and described live strand inner chamber between；Described rectangular seal is arranged between described rolling groove and described inner chamber, is fixed by described trim ring bottom rectangular seal, and described lock sleeve is threadeded with described strand of living, and bottom lock sleeve, described trim ring and rectangular seal is fixed on the positioning；One end of described sealing shroud is fixed on described living in strand by described fixed larynx hoop, and the other end of sealing shroud is connected between described lock sleeve and described trim ring.
Preferably, described sealing shroud is horn-like.
The invention has the beneficial effects as follows: compared with prior art, present configuration is simply prone to processing, assembling, member replacing convenience, long service life, and production cost is low.In the structure of double containment enclosed goalpost universal drive shaft, rectangular seal avoids because rubber sheath is unexpected damaged, seal failure causes strand internal entrance mud of living, accelerate to live and twist the abrasion of each parts in inside, so as to the life-span is greatly decreased, closed link structure makes the axial internal clearance taken off post reduce, and then decreases strand of living, takes off post and axially wearing and tearing between connecting rod, and the service life making universal drive shaft overall is improved, avoid because of cardan shaft failure, cause unnecessary trip-out.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and preferred embodiment.As it is shown in figure 1, a kind of closed everything axle of double containment, including closed link 1, the two ends up and down of described closed link are connected to the everything joint 2 that structure is identical；Described everything joint include living strand 3, lock sleeve 4, trim ring 5, ball seat 6, take off post 7, bulb 8, fixed larynx hoop 9, sealing shroud 10 and rectangular seal 11；Described ball seat is fixed on the intracavity bottom of described strand of living, described bulb coordinates with described ball seat, described bulb is fixed on the top of described closed link, and the end loops week of described closed link is provided with rolling groove, described in take off post be arranged on described rolling groove and described live strand inner chamber between；Described rectangular seal is arranged between described rolling groove and described inner chamber, is fixed by described trim ring bottom rectangular seal, and described lock sleeve is threadeded with described strand of living, and bottom lock sleeve, described trim ring and rectangular seal is fixed on the positioning；One end of described sealing shroud is fixed on described living in strand by described fixed larynx hoop, and the other end of sealing shroud is connected between described lock sleeve and described trim ring.Described sealing shroud is horn-like.
Ball seat is put in the inner chamber of strand of living after smearing grease, one end of closed link is sequentially placed into lock sleeve, rubber sealing boot, trim ring and rectangular seal, rectangular seal is smeared grease, take off post and smear grease and put into the blind groove of interlinking lever end, bulb inserts in the hole of connecting rod end face, tightens rubber sleeve with fixed larynx band, and lock sleeve is connected with strand of living, screw thread smears anaerobic adhesive, and closed link other end dress method is identical with it.
Present configuration is simply prone to processing, assembling, member replacing convenience, long service life, and production cost is low.In the structure of double containment enclosed goalpost universal drive shaft, rectangular seal avoids because rubber sheath is unexpected damaged, seal failure causes strand internal entrance mud of living, accelerate to live and twist the abrasion of each parts in inside, so as to the life-span is greatly decreased, closed link structure makes the axial internal clearance taken off post reduce, and then decreases strand of living, takes off post and axially wearing and tearing between connecting rod, and the service life making universal drive shaft overall is improved, avoid because of cardan shaft failure, cause unnecessary trip-out.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (2)
1. the closed everything axle of double containment, it is characterised in that: including closed link, the two ends up and down of described closed link are connected to the everything joint that structure is identical；Described everything joint include living strand, lock sleeve, trim ring, ball seat, take off post, bulb, fixed larynx hoop, sealing shroud and rectangular seal；Described ball seat is fixed on the intracavity bottom of described strand of living, described bulb coordinates with described ball seat, described bulb is fixed on the top of described closed link, and the end loops week of described closed link is provided with rolling groove, described in take off post be arranged on described rolling groove and described live strand inner chamber between；Described rectangular seal is arranged between described rolling groove and described inner chamber, is fixed by described trim ring bottom rectangular seal, and described lock sleeve is threadeded with described strand of living, and bottom lock sleeve, described trim ring and rectangular seal is fixed on the positioning；One end of described sealing shroud is fixed on described living in strand by described fixed larynx hoop, and the other end of sealing shroud is connected between described lock sleeve and described trim ring.
2. the closed everything axle of double containment according to claim 1, it is characterised in that: described sealing shroud is horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285682.4A CN105781441A (en) | 2016-04-29 | 2016-04-29 | Double-seal enclosed universal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285682.4A CN105781441A (en) | 2016-04-29 | 2016-04-29 | Double-seal enclosed universal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105781441A true CN105781441A (en) | 2016-07-20 |
Family
ID=56400462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610285682.4A Pending CN105781441A (en) | 2016-04-29 | 2016-04-29 | Double-seal enclosed universal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781441A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150387A (en) * | 2016-08-25 | 2016-11-23 | 天津立林石油机械有限公司 | The hinged driving-shaft assembly of helicoid hydraulic motor |
| CN106224398A (en) * | 2016-08-31 | 2016-12-14 | 天津立林石油机械有限公司 | Petal type ball-type universal drive shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904228A (en) * | 1984-05-14 | 1990-02-27 | Norton Christensen, Inc. | Universal ball joint |
| US20030181245A1 (en) * | 2002-03-20 | 2003-09-25 | Shaw Joel David | Downhole universal joint assembly |
| CN202441270U (en) * | 2012-01-17 | 2012-09-19 | 潍坊弘邦机械有限公司 | Spherical column type universal shaft of screw drill for oilfield |
| CN104265199A (en) * | 2014-09-28 | 2015-01-07 | 天津立林石油机械有限公司 | Ball column sealing universal shaft assembly for screw drill |
| CN205714016U (en) * | 2016-04-29 | 2016-11-23 | 天津立林石油机械有限公司 | Double containment closed everything axle |
-
2016
- 2016-04-29 CN CN201610285682.4A patent/CN105781441A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904228A (en) * | 1984-05-14 | 1990-02-27 | Norton Christensen, Inc. | Universal ball joint |
| US20030181245A1 (en) * | 2002-03-20 | 2003-09-25 | Shaw Joel David | Downhole universal joint assembly |
| CN202441270U (en) * | 2012-01-17 | 2012-09-19 | 潍坊弘邦机械有限公司 | Spherical column type universal shaft of screw drill for oilfield |
| CN104265199A (en) * | 2014-09-28 | 2015-01-07 | 天津立林石油机械有限公司 | Ball column sealing universal shaft assembly for screw drill |
| CN205714016U (en) * | 2016-04-29 | 2016-11-23 | 天津立林石油机械有限公司 | Double containment closed everything axle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150387A (en) * | 2016-08-25 | 2016-11-23 | 天津立林石油机械有限公司 | The hinged driving-shaft assembly of helicoid hydraulic motor |
| CN106150387B (en) * | 2016-08-25 | 2020-02-14 | 天津立林石油机械有限公司 | Hinged transmission shaft assembly for screw drill |
| CN106224398A (en) * | 2016-08-31 | 2016-12-14 | 天津立林石油机械有限公司 | Petal type ball-type universal drive shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |