CN221034421U - Independent double-passage rotary joint - Google Patents
Independent double-passage rotary joint Download PDFInfo
- Publication number
- CN221034421U CN221034421U CN202322686552.XU CN202322686552U CN221034421U CN 221034421 U CN221034421 U CN 221034421U CN 202322686552 U CN202322686552 U CN 202322686552U CN 221034421 U CN221034421 U CN 221034421U
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- China
- Prior art keywords
- shell
- bearing
- sealing ring
- ring
- hollow shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 58
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 230000009977 dual effect Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000839 emulsion Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses an independent double-passage rotary joint, which relates to the field of rotary joints and comprises a hollow shaft, wherein the inner wall of a bearing shell is provided with the hollow shaft. According to the independent double-passage rotary joint, through the arrangement of the hollow shaft, the oil seal, the bearing shell, the first bearing, the second bearing, the nut, the first sealing ring, the p1 shell, the outer static ring, the second sealing ring, the outer flat pad, the first spring, the third sealing ring, the p2 shell, the second spring, the inner flat pad, the fourth sealing ring, the inner static ring and the screw, two passages in the rotary joint are mutually isolated by mechanical sealing, the two passages in the rotary joint are mutually independent, the problems of medium mixing and inner leakage are effectively avoided, the realization of equipment functions is met, the device is suitable for the working environment that hydraulic oil, emulsion, water and the like are taken as transmission media, and the two media cannot be internally leaked in series, and the device is simple in structure, convenient to operate and brings better application prospects.
Description
Technical Field
The utility model relates to the field of rotary joints, in particular to an independent double-passage rotary joint.
Background
The existing rotary joint with a small path (DN 150mm below) is of a mechanical sealing structure, the hydraulic rotary joint with more than two paths mainly adopts a mechanical sealing and radial sealing ring sealing composite structure, the mechanical sealing structure is responsible for preventing the rotary joint from leaking outwards, the rubber sealing ring is responsible for isolating the inside to form two independent paths, and in long-term operation, after sealing abrasion, the compensation quantity of the rubber sealing ring is far less than that of the mechanical sealing, so that the rotary joint is not leaked outwards, but the internal leakage is serious, media between the two paths are mutually leaked, and the medium transmission function is affected.
Therefore, it is necessary to provide a separate dual path swivel to solve the above problems.
Disclosure of utility model
The utility model mainly aims to provide an independent double-passage rotary joint which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides an independent double-passage rotary joint, includes the bearing shell, the inner wall of bearing shell is provided with the hollow shaft, be provided with first bearing and second bearing between hollow shaft and the bearing shell, the second bearing is located one side of first bearing, be provided with the nut between second bearing and the hollow shaft, the hollow shaft outer wall is provided with the oil blanket, the one end surface of bearing shell is provided with p1 casing, the one end surface of p1 casing is provided with p2 casing, be provided with third sealing washer and screw between p1 casing and the p2 casing, the screw is located the below of third sealing washer, be provided with first sealing washer between bearing shell and the p1 casing, the inner wall of p1 casing is provided with outer quiet ring and interior quiet ring, interior quiet ring is located one side of outer quiet ring, the one end surface of outer quiet ring is provided with the second sealing washer, the one end surface of second sealing washer is provided with outer flat pad, the one end surface of outer flat pad is provided with first spring, the one end surface of interior quiet ring is provided with fourth sealing washer, the one end surface of fourth flat pad is provided with the second flat pad.
Preferably, the inner wall of the bearing shell is movably connected with the outer wall of the hollow shaft through a first bearing and a second bearing.
Preferably, the outer surface of one end of the nut is movably connected with the middle part of the hollow shaft, and the outer wall of the hollow shaft is movably connected with the inner wall of the oil seal.
Preferably, the outer surface of one end of the bearing shell is detachably connected with the outer surface of the other end of the p1 shell through a first sealing ring, and the outer surface of one end of the p1 shell is detachably connected with the outer surface of the other end of the p2 shell.
Preferably, the inner wall of the p1 shell is detachably connected with the outer walls of the outer stationary ring and the inner stationary ring.
Preferably, the outer surface of one end of the outer stationary ring is detachably connected with the outer surface of the other end of the second sealing ring, and the outer surface of one end of the second sealing ring is detachably connected with the outer surface of the other end of the outer flat pad.
Preferably, the outer surface of one end of the outer flat pad is detachably connected with the outer surface of one end of the first spring, and the outer surface of one end of the inner stationary ring is detachably connected with the outer surface of the other end of the fourth sealing ring.
Preferably, the outer surface of one end of the fourth sealing ring is detachably connected with the outer surface of the other end of the inner flat pad, and the outer surface of one end of the inner flat pad is detachably connected with the outer surface of one end of the second spring.
Advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
The independent double-passage rotary joint is characterized in that through the arranged hollow shaft, oil seal, bearing shell, first bearing, second bearing, nut, first sealing ring, p1 shell, outer stationary ring, second sealing ring, outer flat pad, first spring, third sealing ring, p2 shell, second spring, inner flat pad, fourth sealing ring, inner stationary ring and screw, two passages inside the rotary joint are mechanically sealed and isolated from each other, the two passages inside the rotary joint are mutually independent, the problems of medium mixing and inner leakage are effectively avoided, the realization of equipment functions is satisfied, and the independent double-passage rotary joint is suitable for a working environment which takes hydraulic oil, emulsion, water and the like as transmission media and can not be internally leaked in series.
Drawings
FIG. 1 is a schematic view of the overall structure of an independent dual-channel rotary joint according to the present utility model.
In the figure: 1. a hollow shaft; 2. an oil seal; 3. a bearing housing; 4. a first bearing; 5. a second bearing; 6. a nut; 7. a first seal ring; 8. a p1 housing; 9. an outer stationary ring; 10. a second seal ring; 11. an outer flat pad; 12. a first spring; 13. a third seal ring; 14. a p2 housing; 15. a second spring; 16. an inner flat pad; 17. a fourth seal ring; 18. an inner stationary ring; 19. and (5) a screw.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1, an independent double-passage rotary joint is provided, a hollow shaft 1 is arranged in the inner diameter of a bearing shell 3, a first bearing 4 and a second bearing 5 are arranged between the outer diameter of the hollow shaft 1 and the inner hole of the bearing shell 3, a nut 6 is connected with the thread of the hollow shaft 1 and presses the bearing, an oil seal 2 is arranged in a groove of an inner diameter sealing ring of the bearing shell 3 and is in contact sealing with the outer diameter of the hollow shaft 1, the left end face of a p1 shell 8 is in positioning fit with the right end face of the bearing shell 3, the right end face of the p1 shell 8 is in positioning fit with the left end face of a p2 shell 14 and integrally connects the bearing shell 3, the p1 shell 8 and the p2 shell 14 through a screw 19, a first sealing ring 7 is arranged in a sealing ring groove of the p1 shell and is in contact sealing with the matching face of the bearing shell 3, a third sealing ring 13 is arranged in a groove of the p2 shell and is in contact sealing with the matching face of the p1 shell and the p2 shell, the outer stationary ring 9 is arranged at the inner hole matching position of the p1 shell, the left end face of the outer stationary ring 9 is in friction contact with the right end face of the hollow shaft 1 to seal jc1, the right end face of the outer stationary ring 9 is sequentially provided with a second sealing ring 10, an outer flat pad 11 and a first spring 12, the second sealing ring 10 is in pre-tightening contact with the right end face of the outer stationary ring 9 and the inner diameter of the p1 shell through the first spring 12 and the outer flat pad 11, the outer stationary ring 9 is arranged at the inner hole matching position of the p1 shell, the left end face of the outer stationary ring 9 is in friction contact with the right end face of the hollow shaft 1 to seal jc1, the inner stationary ring 18 is arranged at the inner hole matching position of the p2 shell, the left end face of the inner stationary ring 18 is in friction contact with the right end face of the hollow shaft 1 to seal jc2, the right end face of the inner stationary ring 18 is sequentially provided with a fourth sealing ring 17, an inner flat pad 16, a second spring 15 and through the second spring 15, the inner flat gasket 16 pre-tightly contacts and seals the fourth sealing ring 17 with the right end surface of the inner stationary ring 18 and the inner diameter of the p2 shell.
The utility model is an independent double-passage rotary joint, when in use, through the hollow shaft 1, the oil seal 2, the bearing shell 3, the first bearing 4, the second bearing 5, the nut 6, the first sealing ring 7, the p1 shell 8, the outer stationary ring 9, the second sealing ring 10, the outer flat pad 11, the first spring 12, the third sealing ring 13, the p2 shell 14, the second spring 15, the inner flat pad 16, the fourth sealing ring 17, the inner stationary ring 18 and the screw 19, when a medium with pressure enters the annular cavity of the outer stationary ring 9 and the inner diameter ring 18 through the p1 passage opening of the p1 shell 8, the outer stationary ring 8, the inner stationary ring 18 are tightly attached to the right end surface of the hollow shaft 1 under the combined action of the first spring 12, the second spring 15 and the internal pressure, the friction contact sealing jc1, the friction contact sealing jc2 enter a sealing state, the medium enters the equipment along the annular hole of the hollow shaft, when the friction contact seal jc2 is in a sealed state, a medium cannot enter the p2 shell 14, the friction contact seal jc1 is in a sealed state, the medium cannot be exposed, when a medium with pressure enters the inner cavity of the inner static ring 18 through the p2 passage of the p2 shell 14, the inner static ring 18 is tightly attached to the right end face of the hollow shaft 1 under the combined action of medium pressure and the spring 15, the friction contact seal jc2 enters the sealed state, the medium with pressure enters the device along the central hole of the hollow shaft, the medium cannot leak to enter the annular cavity of the outer static ring 9 and the inner static ring 18 when the friction contact seal jc2 is in the sealed state, the independence between the passages is met, the two passages in the rotary joint are mutually isolated by mechanical seal, the two passages in the rotary joint are mutually independent, the safety is reliable, the problems of medium mixing and internal leakage are effectively avoided, the realization of the functions of the device is met, the device is suitable for being used for driving oil, the emulsion, water and the like are used as transmission media and the two media cannot be internally leaked.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. An independent double-channel rotary joint comprising a bearing housing (3), characterized in that: the inner wall of the bearing shell (3) is provided with a hollow shaft (1), a first bearing (4) and a second bearing (5) are arranged between the hollow shaft (1) and the bearing shell (3), the second bearing (5) is positioned at one side of the first bearing (4), a nut (6) is arranged between the second bearing (5) and the hollow shaft (1), the outer wall of the hollow shaft (1) is provided with an oil seal (2), the outer surface of one end of the bearing shell (3) is provided with a p1 shell (8), the outer surface of one end of the p1 shell (8) is provided with a p2 shell (14), a third sealing ring (13) and a screw (19) are arranged between the p1 shell (8) and the p2 shell (14), the screw (19) is positioned below the third sealing ring (13), the inner wall of the p1 shell (8) is provided with an outer static ring (9) and an inner static ring (18), the inner surface of the p1 shell (8) is provided with a first sealing ring (7), the outer surface of the second sealing ring (10) is positioned at one end of the second static ring (9), the outer flat pad (11) is characterized in that a first spring (12) is arranged on the outer surface of one end of the outer flat pad (11), a fourth sealing ring (17) is arranged on the outer surface of one end of the inner stationary ring (18), an inner flat pad (16) is arranged on the outer surface of one end of the fourth sealing ring (17), and a second spring (15) is arranged on the outer surface of one end of the inner flat pad (16).
2. An independent dual path swivel according to claim 1, wherein: the inner wall of the bearing shell (3) is movably connected with the outer wall of the hollow shaft (1) through a first bearing (4) and a second bearing (5).
3. An independent dual path swivel according to claim 1, wherein: the outer surface of one end of the nut (6) is movably connected with the middle part of the hollow shaft (1), and the outer wall of the hollow shaft (1) is movably connected with the inner wall of the oil seal (2).
4. An independent dual path swivel according to claim 1, wherein: one end outer surface of the bearing shell (3) is detachably connected with the other end outer surface of the p1 shell (8) through a first sealing ring (7), and one end outer surface of the p1 shell (8) is detachably connected with one end outer surface of the p2 shell (14).
5. An independent dual path swivel according to claim 1, wherein: the inner wall of the p1 shell (8) is detachably connected with the outer walls of the outer stationary ring (9) and the inner stationary ring (18).
6. An independent dual path swivel according to claim 1, wherein: one end outer surface of the outer stationary ring (9) is detachably connected with the other end outer surface of the second sealing ring (10), and one end outer surface of the second sealing ring (10) is detachably connected with the other end outer surface of the outer flat pad (11).
7. An independent dual path swivel according to claim 1, wherein: one end outer surface of the outer flat pad (11) is detachably connected with one end outer surface of the first spring (12), and one end outer surface of the inner stationary ring (18) is detachably connected with the other end outer surface of the fourth sealing ring (17).
8. An independent dual path swivel according to claim 1, wherein: one end outer surface of the fourth sealing ring (17) is detachably connected with the other end outer surface of the inner flat pad (16), and one end outer surface of the inner flat pad (16) is detachably connected with one end outer surface of the second spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686552.XU CN221034421U (en) | 2023-10-08 | 2023-10-08 | Independent double-passage rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686552.XU CN221034421U (en) | 2023-10-08 | 2023-10-08 | Independent double-passage rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221034421U true CN221034421U (en) | 2024-05-28 |
Family
ID=91171666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322686552.XU Active CN221034421U (en) | 2023-10-08 | 2023-10-08 | Independent double-passage rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221034421U (en) |
-
2023
- 2023-10-08 CN CN202322686552.XU patent/CN221034421U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |