CN220037790U - Automatic rotary joint for oil filling riser - Google Patents
Automatic rotary joint for oil filling riser Download PDFInfo
- Publication number
- CN220037790U CN220037790U CN202321581603.6U CN202321581603U CN220037790U CN 220037790 U CN220037790 U CN 220037790U CN 202321581603 U CN202321581603 U CN 202321581603U CN 220037790 U CN220037790 U CN 220037790U
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- China
- Prior art keywords
- ring
- outer ring
- inner ring
- rotary joint
- oil filling
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- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to an automatic rotary joint for a crane pipe, which comprises an inner ring sleeved in an outer ring, wherein flanges are arranged on the same side of the outer ring and the inner ring, the flanges are arranged opposite to a flange plate of the outer ring and are connected through screws, a pressing force is provided for transmitting the pressing force to a main sealing ring, the sealing performance of the main sealing ring is good, and the medium passing through the rotary joint is ensured not to leak outside. The inner sleeve of the outer ring is provided with an inner ring, a roller path is arranged between the outer wall of the inner ring and the inner wall of the outer ring in a coupling way, the rolling bodies move in the roller path, the sliding friction force between the outer ring and the inner ring is converted into rolling friction force, the friction force is small, and the damage to the contact surface between the outer ring and the inner ring is reduced. And still be equipped with the sealing washer between inner circle and the outer lane, prevent that the medium from revealing extremely and dustproof, outer lane ring flange circumference is equipped with worm wheel actuating mechanism meshing worm, and worm by driving motor drive motion, the start-stop of controller control driving motor, automatic control horizontal crane pipe's rotation speed and rotation angle and final location, the location is accurate.
Description
Technical Field
The utility model relates to the technical field of oil filling riser joints, in particular to an automatic rotary joint for oil filling riser.
Background
The rotary joint is a key component of the oil filling riser, is also called as an oil filling riser universal joint, is processed by adopting a precise numerical control machine tool, and has flexible rotation, portability and reliability; is generally suitable for the transmission of high-temperature, low-temperature and highly corrosive media.
The existing rotary joint has the defects that the sealing surface is worn quickly in the process of multiple rotation use, and after repeated use, the sealing surface is corroded by a medium, so that the medium is leaked, the whole pipeline is corroded, the safety production is endangered, and the rotary joint is invalid;
the rotary joint needs to be manually rotated in the rotating process, so that the rotating angle cannot be accurately positioned, and uniform rotation cannot be achieved.
Disclosure of Invention
The utility model aims to provide an automatic rotary joint for a crane pipe, which solves the problems in the background art, and has the advantages of good sealing performance, small rotary friction, automatic control of the rotation speed and the rotation angle and accurate positioning.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the automatic rotary joint for the oil filling riser comprises an outer ring and an inner ring, wherein the inner ring is sleeved in the outer ring, flanges are arranged on the same side of the outer ring and the inner ring, flanges matched with the flanges are arranged on the outer ring, the flanges are oppositely arranged with the flanges of the outer ring and are connected through screws, a rollaway nest is arranged between the outer wall of the inner ring and the inner wall of the outer ring in a coupling way, a plurality of rolling bodies are arranged in the rollaway nest, a sealing groove is arranged on the outer wall of the inner ring, a sealing ring is arranged in the sealing groove, an injection hole communicated with the rollaway nest is arranged on the outer ring along the radial direction, and a screw plug is matched on the injection hole; the outer ring flange circumference is equipped with worm wheel drive mechanism, and worm wheel drive mechanism includes the worm wheel, and worm wheel one side meshing is equipped with the worm, and the worm tip is equipped with driving motor and controller, driving motor and controller signal connection. The rotation speed and the rotation angle of the horizontal crane tube are automatically controlled, and finally the horizontal crane tube is positioned, so that the horizontal crane tube is accurate in positioning.
Preferably, the raceway is two and along circumference mutual parallel arrangement, and the raceway includes the last recess that the outer lane inner wall was equipped with and the lower groove that the inner circle outer wall was equipped with, and the rolling element sets up between last recess and lower groove, the rolling element is the steel ball, annotate hole and raceway one-to-one setting, two annotate holes are located the same position of outer lane. The rotation friction of the outer ring along the inner ring is converted into rolling friction by the movement of the steel balls in the rollaway nest. The outer ring rotates more smoothly, uniform rotation movement is guaranteed, and damage to a contact surface between the outer ring and the inner ring is reduced.
More preferably, a main sealing surface is formed by surrounding the inner ring surface of the flange and the compression surfaces of the inner ring and the outer ring, and a main sealing ring is arranged at the main sealing surface and is a trapezoid sealing ring. The compaction force between the flange and the outer ring is transmitted to the main sealing ring, so that the main sealing ring has good sealing performance, and the medium passing through the rotary joint is ensured not to leak.
More preferably, the second sealing surface is formed by pressing between the outer ring surface of the flange and the outer ring. And the secondary sealing is better in sealing performance.
More preferably, one end of the inner ring extending out of the outer ring is provided with a welding butt joint pipe orifice matched with the nominal diameter of the standard connecting pipe. The butt welding is stable and reliable, is not easy to loosen and has long service life.
More preferably: the seal groove is located at a position far away from the flange plate and located outside the two roller paths.
Compared with the prior art, the rotary joint has the beneficial effects that the flange is connected with the outer ring through the screw, the pressing force is transmitted to the main sealing ring, the sealing performance of the main sealing ring is good, and the medium passing through the rotary joint is ensured not to leak. The inner walls of the outer rings are coupled with a roller path and rolling bodies, the rolling bodies move in the roller path, sliding friction force between the outer rings and the inner rings is converted into rolling friction force, the friction force is small, and damage to contact surfaces between the outer rings and the inner rings is reduced. And still be equipped with the sealing washer between inner circle and the outer lane, multilayer is sealed prevents that the medium from revealing, outer lane ring flange circumference is equipped with worm wheel actuating mechanism meshing worm, and the worm is by driving motor drive motion, and the start-stop of controller control driving motor, automatic control horizontal crane pipe's rotation speed and rotation angle and final location, location is accurate.
Drawings
FIG. 1 is a schematic view of the overall assembly of the present utility model;
FIG. 2 is a front view of the overall assembly of the present utility model;
FIG. 3 is a schematic view of the outer ring structure of the present utility model;
FIG. 4 is a front view of the outer race of the present utility model;
FIG. 5 is a schematic view of the inner ring structure of the present utility model;
FIG. 6 is a front view of the inner ring of the present utility model;
FIG. 7 is a schematic cross-sectional view of a primary seal ring of the present utility model;
FIG. 8 is a schematic view of a flange according to the present utility model;
FIG. 9 is a second schematic diagram of a flange structure according to the present utility model;
fig. 10 is a schematic diagram of a flange structure according to the present utility model.
In the figure; 1-inner ring, 101-sealing groove, 2-outer ring, 201-injection hole, 202-rollaway nest, 203-worm wheel, 3-plug screw, 4-rolling body, 5-sealing ring, 6-screw, 7-main sealing ring and 8-flange.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, an automatic rotary joint for a crane tube comprises an outer ring and an inner ring, wherein the inner ring 1 is sleeved in the outer ring 2, and one end of the inner ring extending out of the outer ring is provided with a welding groove matched with a nominal diameter of a standard connecting pipe. The welding groove of the inner ring is welded and fixed after being butted with the oil filling riser with the same nominal diameter.
The same side of outer lane and inner circle is equipped with the flange, is equipped with on the outer lane 2 with flange complex ring flange, and flange 8 sets up in opposite directions and passes through screw 6 with the ring flange of outer lane 2 and connects, and the flange passes through screw 6 with the outer lane to be connected, compress tightly between flange outer ring surface and the outer lane and form second sealed face 10.
Referring to fig. 8-10, the flange 8 butt-joint groove is welded and fixed with another section of oil filling riser. The butt joint groove of the flange 8 has three structures, is suitable for butt joint welding of thick-wall pipes, is suitable for butt joint welding of thin-wall pipes, and is suitable for butt joint welding of large-diameter pipes. The inner ring and the flange are communicated with the upstream oil filling riser and the downstream oil filling riser, and fluid medium in the upstream oil filling riser flows into the next section of oil filling riser through the inner pipe body of the inner ring and the flange.
The inner ring outer wall and the outer ring inner wall are coupled and are provided with a rollaway nest 202, a plurality of rolling bodies 4 are arranged in the rollaway nest, the rollaway nest 202 comprises an upper groove arranged on the inner ring inner wall and a lower groove arranged on the inner ring outer wall, the rolling bodies are steel balls arranged between the upper groove and the lower groove, a plurality of steel balls are arranged in the rollaway nest, and when the outer ring rotates along the circumferential direction of the inner ring, the rolling friction of the outer ring along the inner ring is converted into rolling friction through a series of steel balls moving in the rollaway nest. The outer ring rotates more smoothly, and uniform rotation movement is ensured.
The outer ring 2 is provided with injection holes 201 communicated with the seal groove 101 along the radial direction, the injection holes 201 are arranged in one-to-one correspondence with the rollaway nest, and the two injection holes are positioned in the same direction of the outer ring. When the raceways of the inner ring and the outer ring are correspondingly coupled, after the outer ring 2 and the flange 8 are fixed by bolts, the injection hole 201 is provided with a plug screw 3 in a matching way; and respectively screwing two screw plugs on the outer ring, respectively placing the steel balls into the two rollaway nest from the injection hole, and finally covering the injection hole by the screw plugs.
Referring to fig. 7, a seal groove 101 is formed in the outer wall of the inner ring, a seal ring 5 is arranged in the seal groove, the seal ring is an O-shaped seal ring, and the seal groove is located at a position far away from the flange plate and located at the outer sides of the two roller paths. And a gap between the inner ring and the outer ring is sealed, so that leakage of a medium caused by unsealing failure of the main sealing surface is prevented, and the anti-dust function is realized.
A main sealing surface is formed by surrounding the inner ring surface of the flange and the compression surfaces of the inner ring and the outer ring, and a main sealing ring 7 is arranged at the main sealing surface and is a trapezoid sealing ring. The main sealing ring compresses tightly the clearance between flange, outer lane and the inner circle and sets up, guarantees that the medium can not leak.
The outer ring flange circumference is equipped with worm wheel drive mechanism, and worm wheel drive mechanism includes worm wheel 203, and worm wheel one side meshing is equipped with worm 9, and the worm tip is equipped with driving motor and controller, driving motor and controller signal connection. When the direction of the horizontal oil filling riser needs to be changed, the controller controls the driving motor to start so as to drive the worm 9 to rotate, the worm drives the worm wheel to rotate along the central axis of the outer ring, and when the rotation angle of the oil filling riser reaches the standard, the controller controls the driving motor to stop moving, the worm stops rotating, the worm wheel synchronously stops rotating, and the automatic rotation of the automatic rotary joint is completed.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The automatic rotary joint for the oil filling riser is characterized by comprising an outer ring and an inner ring, wherein the inner ring (1) is sleeved in the outer ring (2), flanges are arranged on the same side of the outer ring and the inner ring, flanges matched with the flanges are arranged on the outer ring (2), the flanges (8) are oppositely arranged with the flanges of the outer ring (2) and are connected through screws (6), a raceway (202) is arranged between the outer wall of the inner ring and the inner wall of the outer ring in a coupling way, a plurality of rolling bodies (4) are arranged in the raceway, a sealing groove (101) is arranged on the outer wall of the inner ring, a sealing ring (5) is arranged in the sealing groove, an injection hole (201) communicated with the raceway is formed in the outer ring along the radial direction, and a plug screw (3) is arranged on the injection hole in a matching way; the outer ring flange circumference is equipped with worm wheel drive mechanism, and worm wheel drive mechanism includes worm wheel (203), and worm wheel one side meshing is equipped with worm (9), and the worm tip is equipped with driving motor and controller, driving motor and controller signal connection.
2. The automatic rotary joint for oil filling riser according to claim 1, wherein: the ball tracks (202) are arranged in parallel along the circumferential direction, each ball track comprises an upper groove formed in the inner wall of the outer ring and a lower groove formed in the outer wall of the inner ring, rolling bodies are arranged between the upper groove and the lower groove, the rolling bodies (4) are steel balls, the injection holes are arranged in one-to-one correspondence with the ball tracks, and the two injection holes are positioned in the same direction of the outer ring.
3. The automatic rotary joint for oil filling riser according to claim 1, wherein: a main sealing surface is formed by encircling the inner ring surface of the flange (8) and the compacting surfaces of the inner ring (1) and the outer ring (2), and a main sealing ring (7) is arranged at the main sealing surface and is a trapezoid sealing ring.
4. An automatic rotary joint for oil filling riser according to claim 3, wherein: the outer ring surface of the flange (8) is tightly pressed with the outer ring (2) to form a second sealing surface (10).
5. The automatic rotary joint for oil filling riser according to claim 1, wherein: one end of the inner ring (1) extending out of the outer ring (2) is provided with a welding butt joint pipe orifice matched with the nominal diameter of the standard connecting pipe.
6. The automatic rotary joint for oil filling riser according to claim 1, wherein: the seal groove (101) is located away from the flange plate and is located outside the two raceways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321581603.6U CN220037790U (en) | 2023-06-20 | 2023-06-20 | Automatic rotary joint for oil filling riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321581603.6U CN220037790U (en) | 2023-06-20 | 2023-06-20 | Automatic rotary joint for oil filling riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037790U true CN220037790U (en) | 2023-11-17 |
Family
ID=88740432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321581603.6U Active CN220037790U (en) | 2023-06-20 | 2023-06-20 | Automatic rotary joint for oil filling riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037790U (en) |
-
2023
- 2023-06-20 CN CN202321581603.6U patent/CN220037790U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |