CN207195902U - A kind of rotary drilling rig center-rotary joint - Google Patents
A kind of rotary drilling rig center-rotary joint Download PDFInfo
- Publication number
- CN207195902U CN207195902U CN201721250497.8U CN201721250497U CN207195902U CN 207195902 U CN207195902 U CN 207195902U CN 201721250497 U CN201721250497 U CN 201721250497U CN 207195902 U CN207195902 U CN 207195902U
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- CN
- China
- Prior art keywords
- gyroaxis
- ring
- revolving shell
- end cap
- rotary
- 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.)
- Expired - Fee Related
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Abstract
A kind of rotary drilling rig center-rotary joint, including gyroaxis, revolving shell and end cap, it is characterized in that the shaft shoulder is provided with gyroaxis, gyroaxis is arranged on inside revolving shell, ring flange is arranged with the shaft shoulder, V-type dust ring I is additionally provided with the shaft shoulder, axial oil groove is offered in gyroaxis, axial oil groove is connected with the annular oil groove being arranged on revolving shell inwall, the both sides of annular oil groove are provided with high pressure rotary sealing circle, high pressure rotary sealing circle includes sealing ring body and turn, the right-hand member of revolving shell is provided with end cap, screw is provided with end cap, V-type dust ring II is embedded with end cap, support ring arranged in pairs is provided between gyroaxis and revolving shell, usefulness of the present utility model is：It can effectively prevent pollutant from entering center-rotary joint at the shaft shoulder and at end cap respectively, ensure the axiality of gyroaxis and revolving shell, prevent the Leakage caused by the compression of high pressure rotary sealing circle is uneven.
Description
Technical field
It the utility model is related to pipe joint technical field, and in particular to a kind of revolution of rotary drilling rig center connects
Head.
Background technology
During base plate of rotary drill rig and portion of upper body do relative gyration, center-rotary joint is to return
Ensure the supply of hydraulic circuit when transhipment is dynamic, common center-rotary joint flow is small, and dust-proof effect is bad, can not make churning driven
Machine works under rugged environment, and because center-rotary joint is during work, between revolving shell and gyroaxis
Relatively rotate, therefore first have to consider is sealing problem between revolving shell and gyroaxis, sealing problem is related to whole
Individual center-rotary joint can normal use, friction be present additionally, due to contact position between revolving shell and gyroaxis, can significantly
Abrasion between the two is increased, shortens the service life of center-rotary joint, it is also contemplated that because both axialities are present
Certain deviation and caused radial polarisation pressure, under the long term of radial polarisation pressure, in general sealing ring due to from
The structural issue of body is easy to be worn or even the possibility to fail occurs.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in construction, and anti-dust performance is good, and sealing
The rotary drilling rig center-rotary joint of good anti-leak.
The utility model is realized using following technical scheme：Described rotary drilling rig center-rotary joint, including
Gyroaxis, revolving shell and end cap, it is characterised in that the shaft shoulder is provided with the gyroaxis, gyroaxis is arranged in revolving shell
Portion, the right side of the shaft shoulder and the right side of revolving shell are in contact, and ring flange is arranged with the shaft shoulder, is additionally provided with the shaft shoulder
V-type dust ring I, offers the axial oil groove of predetermined number in gyroaxis, the axial oil groove and is arranged on revolving shell inwall
On annular oil groove be connected, the both sides of the annular oil groove are provided with high pressure rotary sealing circle, the high pressure rotary sealing circle
Annular groove is offered at the inwall of corresponding revolving shell, the annular groove is adapted with high pressure rotary sealing circle, high pressure rotation
Turning sealing ring includes sealing ring body and turn, and the cross section of the sealing ring body is arranged to the structure type of Y types, described
Turn is set on sealing ring body, and the right-hand member of the revolving shell is provided with end cap, is provided with the end cap for tight
The screw of fixed end lid and gyroaxis, V-type dust ring II is embedded with end cap, paired cloth is provided between gyroaxis and revolving shell
The support ring put.
Further, the ring-shaped groove of predetermined number is provided with the shaft shoulder and on the left end of revolving shell, it is described
Lubricant grease is coated with ring-shaped groove.
Further, the low pressure O-ring seal being arranged symmetrically in pairs is additionally provided between the gyroaxis and revolving shell,
The low pressure O-ring seal is arranged on the outside of support ring.
Further, it is provided with butterfly spring between the screw and end cap.
Further, the right-hand member of the revolving shell is arranged to the structure type of evagination, and the left end of end cap is arranged to indent
Structure type, the left end of the end cap is adapted with the right-hand member of revolving shell.
Further, the annular drain pan and radial direction oil leak hole for prevent leakage are additionally provided with the revolving shell.
Further, the screw is soket head cap screw.
Usefulness of the present utility model is：The setting of V-type dust ring I and V-type dust ring II, it can effectively prevent dirt
Dye thing enters center-rotary joint respectively at the shaft shoulder and at end cap, reliability greatly improves；The setting of support ring, ensure revolution
The axiality of axle and revolving shell, prevent the Leakage caused by the compression of high pressure rotary sealing circle is uneven；At the shaft shoulder and revolution
It is provided with the left end of housing in the ring-shaped groove and ring-shaped groove of predetermined number and is coated with lubricant grease, by the axle of gyroaxis
Dry friction mode at shoulder between revolving shell left end changes the friction mode for grease lubrication, slow down significantly gyroaxis and
Abrasion between revolving shell；In the presence of radial polarisation pressure, high pressure rotary sealing circle receives certain pressure, due to
The cross section of sealing ring body is arranged to the structure type of Y types, and under the effect of the pressure, sealing ring body can deform to both sides,
And then ensure that its sealing is unaffected, while the setting of turn, then it greatly strengthen high pressure rotary sealing circle itself knot
The stability of structure.
Brief description of the drawings
A kind of rotary drilling rig of the utility model will be described in further detail with reference to Figs. with center-rotary joint.
Accompanying drawing 1 is main view broken section structural representation of the present utility model；
Accompanying drawing 2 is the partial structural diagram of the utility model accompanying drawing 1.
In accompanying drawing, 1, gyroaxis, 2, revolving shell, 3, end cap, 4, ring flange, 5, V-type dust ring I, 6, annular oil groove, 7,
High pressure rotary sealing circle, 71, sealing ring body, 72, turn, 8, screw, 9, butterfly spring, 10, V-type dust ring II, 11, ring
Shape drain pan, 12, radial direction oil leak hole, 13, ring-shaped groove, 14, support ring, 15, low pressure O-ring seal.
Embodiment
The utility model is described in further detail with reference to accompanying drawing 1 and accompanying drawing 2, so that the public preferably grasps this practicality newly
The implementation of type, the utility model specific embodiment are：
The rotary drilling rig center-rotary joint, including gyroaxis 1, revolving shell 2 and end cap 3, it is characterised in that institute
State and the shaft shoulder is provided with gyroaxis 1, gyroaxis 1 is arranged on inside revolving shell 2, the right side of the shaft shoulder and revolving shell 2
Right side be in contact, ring flange 4 is arranged with the shaft shoulder, V-type dust ring I 5 is additionally provided with the shaft shoulder, is offered in gyroaxis 1
The axial oil groove of predetermined number, the axial oil groove are connected with the annular oil groove 6 being arranged on the inwall of revolving shell 2, the ring
The both sides of shape oil groove 6 are provided with high pressure rotary sealing circle 7, and the high pressure rotary sealing circle 7 is corresponded at the inwall of revolving shell
Annular groove is offered, the annular groove is adapted with high pressure rotary sealing circle 7, and high pressure rotary sealing circle 7 includes sealing ring
Body 71 and turn 72, the cross section of the sealing ring body 71 are arranged to the structure type of Y types, and the turn 72 is arranged
On sealing ring body 71, the right-hand member of the revolving shell 2 is provided with end cap 3, is provided with the end cap 3 for fastening end cap
3 and the screw 8 of gyroaxis 1, V-type dust ring II 10 is embedded with end cap 3, is provided between gyroaxis 1 and revolving shell 2 in pairs
The support ring 14 of arrangement.
Further, the ring-shaped groove 13 of predetermined number, institute are provided with the shaft shoulder and on the left end of revolving shell 2
State in ring-shaped groove 13 and be coated with lubricant grease.
Further, it is additionally provided with the O-shaped sealing of the low pressure being arranged symmetrically in pairs between the gyroaxis 1 and revolving shell 2
Circle 15, the low pressure O-ring seal 15 is arranged on the outside of support ring 14, further increases the ability of anti-leak.
Further, butterfly spring 9 is provided between the screw 8 and end cap 3, different from existing bullet of the prior art
Property packing ring, the anti-loose ability of butterfly spring 9 is stronger, while the service life of butterfly spring 9 is also strong.
Further, the right-hand member of the revolving shell 2 is arranged to the structure type of evagination, and the left end of end cap 3 is arranged to interior
Recessed structure type, the left end of the end cap 3 are adapted with the right-hand member of revolving shell 2, reduce end cap 3 and revolving shell 2 it
Between friction area, improve abrasion condition between the two.
Further, the annular drain pan 11 and radial direction draining for prevent leakage are additionally provided with the revolving shell 2
Hole 12.
Further, the screw 8 is soket head cap screw.
Operation principle of the present utility model is：The setting of V-type dust ring I 5 and V-type dust ring II 10, can effectively it prevent
Only pollutant enters center-rotary joint respectively at the shaft shoulder and at end cap 3, reliability greatly improves, while ring flange 4 is set
Putting can further prevent pollutant from entering center-rotary joint at the spindle nose of gyroaxis 1；The setting of support ring 14, ensures back
The axiality of rotating shaft 1 and revolving shell 2, prevent because high pressure rotary sealing circle 7 compress it is uneven caused by Leakage, exist in addition
The outside of support ring 14 is additionally provided with low pressure O-ring seal 15, further enhances the sealing of center-rotary joint；At the shaft shoulder
With predetermined number is provided with the left end of revolving shell 2 ring-shaped groove 13 and ring-shaped groove 13 in be coated with lubricant grease,
Dry friction mode at the shaft shoulder of gyroaxis 1 between the left end of revolving shell 2 is changed into the mode for grease lubrication, slowed down significantly
Abrasion between gyroaxis 1 and revolving shell 2；Although to make the same of gyroaxis 1 and revolving shell 2 by the way that there is provided support ring 14
Error between axle degree, radial polarisation pressure between the two is reduced, but the asymmetrical type of the self structure of gyroaxis 1 can not
Radial polarisation pressure is completely eliminated, in the presence of radial polarisation pressure, high pressure rotary sealing circle 7 receives certain pressure,
Because the cross section of sealing ring body 71 is arranged to the structure type of Y types, under the effect of the pressure, sealing ring body can be to both sides
Deformation, extrude annular groove and then ensure that its sealing is unaffected, while the setting of turn 72, then it greatly strengthen height
Press the stability of the self structure of rotating seal ring 7, it is not easy to fail.
It is new not departing from this practicality according to teaching of the present utility model when for the ordinary skill in the art
In the case of the principle and spirit of type, the changes, modifications, replacement and the modification that are carried out to embodiment still fall within the utility model
Protection domain within.
Claims (7)
1. a kind of rotary drilling rig center-rotary joint, including gyroaxis（1）, revolving shell（2）And end cap（3）, its feature exists
In the gyroaxis（1）On be provided with the shaft shoulder, gyroaxis（1）It is arranged on revolving shell（2）Inside, the right side of the shaft shoulder and
Revolving shell（2）Right side be in contact, ring flange is arranged with the shaft shoulder（4）, V-type dust ring I is additionally provided with the shaft shoulder（5）,
Gyroaxis（1）The axial oil groove of predetermined number is inside offered, the axial oil groove is with being arranged on revolving shell（2）Ring on inwall
Shape oil groove（6）It is connected, the annular oil groove（6）Both sides be provided with high pressure rotary sealing circle（7）, the high pressure rotary sealing
Circle（7）Annular groove, the annular groove and high pressure rotary sealing circle are offered at the inwall of corresponding revolving shell（7）Xiang Shi
Match somebody with somebody, high pressure rotary sealing circle（7）Including sealing ring body（71）And turn（72）, the sealing ring body（71）Cross section
It is arranged to the structure type of Y types, the turn（72）It is set in sealing ring body（71）On, the revolving shell（2）The right side
End is provided with end cap（3）, the end cap（3）On be provided with for fastening end cap（3）And gyroaxis（1）Screw（8）, end cap
（3）Inside it is embedded with V-type dust ring II（10）, gyroaxis（1）And revolving shell（2）Between be provided with support ring arranged in pairs
（14）.
2. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that at the shaft shoulder and revolution shell
Body（2）Left end on be provided with the ring-shaped groove of predetermined number（13）, the ring-shaped groove（13）It is interior to be coated with lubricant grease.
3. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that the gyroaxis（1）And revolution
Housing（2）Between be additionally provided with the low pressure O-ring seal being arranged symmetrically in pairs（15）, the low pressure O-ring seal（15）Set
In support ring（14）Outside.
4. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that the screw（8）And end cap
（3）Between be provided with butterfly spring（9）.
5. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that the revolving shell（2）The right side
End is arranged to the structure type of evagination, end cap（3）Left end be arranged to the structure type of indent, the end cap（3）Left end with
Revolving shell（2）Right-hand member be adapted.
6. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that the revolving shell（2）It is upper to go back
It is provided with the annular drain pan for prevent leakage（11）With radial direction oil leak hole（12）.
7. rotary drilling rig center-rotary joint according to claim 1, it is characterised in that the screw（8）For interior hexagonal
Screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250497.8U CN207195902U (en) | 2017-09-27 | 2017-09-27 | A kind of rotary drilling rig center-rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250497.8U CN207195902U (en) | 2017-09-27 | 2017-09-27 | A kind of rotary drilling rig center-rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195902U true CN207195902U (en) | 2018-04-06 |
Family
ID=61787182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721250497.8U Expired - Fee Related CN207195902U (en) | 2017-09-27 | 2017-09-27 | A kind of rotary drilling rig center-rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644503A (en) * | 2018-06-21 | 2018-10-12 | 新疆八钢铁股份有限公司 | Rotate oil circuit connection device |
| CN108775461A (en) * | 2018-08-01 | 2018-11-09 | 湖南海润电气有限公司 | A kind of annular disc water pipe rotary joint |
-
2017
- 2017-09-27 CN CN201721250497.8U patent/CN207195902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644503A (en) * | 2018-06-21 | 2018-10-12 | 新疆八钢铁股份有限公司 | Rotate oil circuit connection device |
| CN108775461A (en) * | 2018-08-01 | 2018-11-09 | 湖南海润电气有限公司 | A kind of annular disc water pipe rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |