CN106150344B - Compensation sealing universal shaft - Google Patents
Compensation sealing universal shaft Download PDFInfo
- Publication number
- CN106150344B CN106150344B CN201610776547.XA CN201610776547A CN106150344B CN 106150344 B CN106150344 B CN 106150344B CN 201610776547 A CN201610776547 A CN 201610776547A CN 106150344 B CN106150344 B CN 106150344B
- Authority
- CN
- China
- Prior art keywords
- ball
- living
- connecting rod
- universal shaft
- cap
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/006—Mechanical motion converting means, e.g. reduction gearings
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to oil drilling cementing technology fields, more particularly to a kind of compensation sealing universal shaft, including the identical top connection of structure and lower contact, it is connected between the top connection and lower contact by connecting rod, the top connection and lower contact are mainly twisted by living, pressure cap, ball seat, ball cap, lock sleeve, ball nail, spring and screw are constituted, the ball nail is connect across living twist with the end of the connecting rod, prevent connecting rod from falling off, the both ends of the connecting rod are respectively fixed with the ball cap, the back side that the ball seat is mounted on pressure cap described in the inside living twisted is contacted with the spring one end, the other end of the spring and the screw fit being threaded on living twist, the lock sleeve is threadedly coupled with living twist.This compensation ball sealer nail universal shaft is also that ensure that the use environment of its internal structure using oil-tightening form, extend the service life of universal shaft, improved the safety coefficient of universal shaft.
Description
Technical field
The present invention relates to oil drilling cementing technology field more particularly to a kind of compensation sealing universal shafts.
Background technique
Currently, petroleum, natural gas drilling engineering used in helicoid hydraulic motor, the purpose of universal shaft is exactly by motor
The eccentric motion of rotor is converted to the dead axle movement of transmission shaft, and the universal shaft service life just determines the machine life of helicoid hydraulic motor.
The structure type of general articulated joint for screw drilling rod is divided into three kinds at present, and a kind of petal type, a kind of ball shape structure, there are also goalpost types.
The structure of petal type is simple (movable joint-connecting rod-movable joint composition), and completely by drilling fluid erosion, the service life is shorter, and processing technology is multiple
It is miscellaneous.And ball-type universal shaft structure groundwork position is protected by sealing shroud, is lasted a long time, but since big ball and ball seat bear big
The abrasion of load, especially ball seat is more serious, thus affects the service life of ball-type universal shaft, goalpost type universal shaft and ball-type ten thousand
It is essentially identical to axle construction, bead is only changed to goalpost transmission, but there is also above situations.
Summary of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, and a kind of compensation sealing universal shaft is provided, effectively
Alleviate the backing pressure phenomenon of drilling tool.
The present invention to achieve the above object, using following technical scheme:
A kind of compensation sealing universal shaft, it is characterised in that: including the identical top connection of structure and lower contact, it is described on connect
It is connected between head and lower contact by connecting rod, the top connection and lower contact are mainly by strand, pressure cap, ball seat, ball cap, locking living
Set, ball nail, spring and screw are constituted, and the ball nail is connect across living twist with the end of the connecting rod, prevent connecting rod de-
It falls, the both ends of the connecting rod are respectively fixed with the ball cap, and the ball cap and the ball seat cooperate, and the ball seat is mounted on described
The inside living twisted, the back side of the ball seat and the pressure cap cooperate, and the back side of the pressure cap is contacted with the spring one end, described
The other end of spring and the screw fit being threaded on living twist, the lock sleeve are threadedly coupled with living twist.
Preferably, living twist is equipped with the first sealing ring with the connecting rod contact site.
Preferably, the second sealing ring is equipped between the lock sleeve and the strand living.
The beneficial effects of the present invention are: compared with prior art, self weight and motor torsional moment due to universal shaft by rotor,
So this compensation ball sealer nail universal shaft is in contact using spherical surface with spherical surface, the design that strand face living is in contact with ball nail face, this
On the one hand structure can carry bigger axial load, on the other hand can transmit bigger torque, while working as ball cap face and ball
After Seat surface wear, spring will push pressure cap and ball seat to compensate abrasion loss, can effectively guarantee to hold between ball seat and ball cap in this way
By stable axial load.Compensation ball sealer nail universal shaft this simultaneously is also that ensure that in it using oil-tightening form
The use environment of portion's structure extends the service life of universal shaft, improves the safety coefficient of universal shaft.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and the preferred embodiment specific embodiment that the present invention will be described in detail.As shown in Figure 1, a kind of benefit
Formula sealing universal shaft, including the identical top connection of structure and lower contact are repaid, is connected between the top connection and lower contact by connecting rod 1
It connects, the top connection and lower contact mainly twist 2, pressure cap 3, ball seat 4, ball cap 5, lock sleeve 6, ball nail 7, spring 8 and spiral shell by living
Nail 9 is constituted, and the ball nail is connect across living twist with the end of the connecting rod, prevents connecting rod from falling off, the both ends of the connecting rod
It is respectively fixed with the ball cap, the ball cap and the ball seat cooperate, and the ball seat is mounted on the inside living twisted, the ball
The back side and the pressure cap of seat cooperate, and the back side of the pressure cap is contacted with the spring one end, the other end and spiral shell of the spring
Line is connected to the screw fit on living twist, and the lock sleeve is threadedly coupled with living twist.The strand living and the connecting rod
Contact site is equipped with the first sealing ring 10.The second sealing ring 11 is equipped between the lock sleeve and the strand living.
Self weight and motor torsional moment due to universal shaft by rotor, thus this compensation ball sealer nail universal shaft using spherical surface with
Spherical surface is in contact, the design that strand face living is in contact with ball nail face, and petal universal shaft, ball-type universal shaft and goalpost universal shaft, point
It is not line contact, point contact and line contact.On the one hand this composition of sample can carry bigger axial load, on the other hand can be with
Bigger torque being transmitted, while after ball cap face is with ball seat surface wear, spring will push pressure cap and ball seat to compensate abrasion loss, this
Sample can effectively guarantee to bear stable axial load between ball seat and ball cap.Compensation ball sealer this simultaneously follows closely universal shaft
It is that ensure that the use environment of its internal structure using oil-tightening form, extend the service life of universal shaft, improve ten thousand
To the safety coefficient of axis.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (1)
1. a kind of compensation sealing universal shaft, it is characterised in that: including the identical top connection of structure and lower contact, the top connection
Connected between lower contact by connecting rod, the top connection and lower contact mainly by strand living, pressure cap, ball seat, ball cap, lock sleeve,
Ball nail, spring and screw are constituted, and the ball nail is connect across living twist with the end of the connecting rod, prevent connecting rod from falling off,
The both ends of the connecting rod are respectively fixed with the ball cap, and the ball cap and the ball seat cooperate, and the ball seat is mounted on the work
The inside of strand, the back side of the ball seat and the pressure cap cooperate, and the back side of the pressure cap is contacted with the spring one end, the bullet
The other end of spring and the screw fit being threaded on living twist, the lock sleeve are threadedly coupled with living twist；It is described
Living twist is equipped with the first sealing ring with the connecting rod contact site；The second sealing ring is equipped between the lock sleeve and the strand living.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776547.XA CN106150344B (en) | 2016-08-30 | 2016-08-30 | Compensation sealing universal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776547.XA CN106150344B (en) | 2016-08-30 | 2016-08-30 | Compensation sealing universal shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106150344A CN106150344A (en) | 2016-11-23 |
| CN106150344B true CN106150344B (en) | 2019-04-19 |
Family
ID=57344309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610776547.XA Active CN106150344B (en) | 2016-08-30 | 2016-08-30 | Compensation sealing universal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150344B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025802A (en) * | 2018-07-31 | 2018-12-18 | 天津立林石油机械有限公司 | Interior sealing top load oil pressure compensates ball bar type universal shaft automatically |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6439866B1 (en) * | 2000-04-03 | 2002-08-27 | Cudd Pressure Control, Inc. | Downhole rotary motor with sealed thrust bearing assembly |
| JP2002349172A (en) * | 2001-05-29 | 2002-12-04 | Technical Earth System Kk | Drilling bit |
| CN2526495Y (en) * | 2001-12-13 | 2002-12-18 | 天津市渤海石油机械有限公司 | Sphere-shaped cardan shaft assembly for screw drilling tool |
| 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 |
| CN204571830U (en) * | 2015-04-23 | 2015-08-19 | 河北立森石油机械股份有限公司 | Goalpost location universal drive shaft |
| CN206111085U (en) * | 2016-08-30 | 2017-04-19 | 天津立林石油机械有限公司 | Cardan shaft is sealed to compensation formula |
-
2016
- 2016-08-30 CN CN201610776547.XA patent/CN106150344B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106150344A (en) | 2016-11-23 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |