CN220470918U - Gap sealing type hydraulic center rotary joint - Google Patents
Gap sealing type hydraulic center rotary joint Download PDFInfo
- Publication number
- CN220470918U CN220470918U CN202321964454.1U CN202321964454U CN220470918U CN 220470918 U CN220470918 U CN 220470918U CN 202321964454 U CN202321964454 U CN 202321964454U CN 220470918 U CN220470918 U CN 220470918U
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- Prior art keywords
- shell
- inflation
- soft rubber
- mandrel
- rotary joint
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- 238000007789 sealing Methods 0.000 title claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a gap sealing type hydraulic center rotary joint, which relates to the technical field of hydraulic rotary joints and comprises the following components: the shell, the inside movable sleeve of shell is equipped with the dabber, dabber one end fixed mounting has two the outside fixed mounting of inflation oil blanket has soft rubber ring, soft rubber ring middle part fixed mounting has the valve, the outside fixed mounting's of the outside groove of having seted up of shell inflation oil blanket soft rubber ring has elasticity, can put into the inside of inflation oil blanket through soft rubber ring with the valve, will aerify oil blanket and dabber again and put into the shell, and the inflation groove can be aligned to the valve after putting into, more conveniently inflates and give up adjusting inflation oil blanket labour saving and time saving effectively prevents that fluid from leaking, and inside sealing effect is better, and the reliability is stronger effectively promotes the suitability, increases device life.
Description
Technical Field
The utility model relates to the technical field of hydraulic swivel joints, in particular to a gap sealing type hydraulic center swivel joint.
Background
The rotary joint is a closed rotary connector for 360-degree rotary conveying medium, and the working principle of the rotary joint is that fluid foreign matter mediums such as slurry, dirt and the like are input into rotary or reciprocating motion equipment from a static pipeline, the rotary range of the rotary joint is selected by increasing the pressure, temperature and rotation speed, and the fluid foreign matter mediums such as slurry, dirt and the like are discharged from the rotary joint by utilizing the concentricity of the connected hollow shaft and the matched rotary body.
In the prior art, for example, the Chinese patent number is: CN215674154U the utility model discloses a gap-sealed hydraulic center rotary joint, comprising a longitudinally distributed mandrel; the outer surface of the mandrel is sleeved with a bushing; the outer surface of the lining is sleeved with a rotary machine; the front end and the middle outer surface of the mandrel are respectively sleeved with a front bearing and a rear bearing; the outer edge of the rear end face of the mandrel is provided with a circular channel; one end of a compression spring is assembled on the rear end face of the mandrel and is engaged with the circular groove; the other end of the compression spring is assembled on the fixed part. The mandrel is provided with two oil inlet and outlet ports, two leakage ports and a through port; one end of each of the two inlet and outlet metal pipes is connected with two oil inlet and outlet ports on the rear end face of the mandrel respectively; one end of the two leakage port metal pipes is respectively connected with the two leakage ports on the rear end surface of the mandrel; the other end of the outlet metal pipe and the other end of the leakage port metal pipe are assembled on the fixed part.
Although the scheme has the advantages, the scheme has the disadvantages that the structure is complex, the abrasion resistance is insufficient, the service life of the center rotary joint can be reduced due to the early oil leakage caused by eccentric abrasion when the center rotary joint is used for a long time, the common rubber ring is easy to deform due to temperature when being used for a long time, and the service life of the device is influenced by the time and labor consumption of manual maintenance.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, the structure is complex, the abrasion resistance is insufficient, the service life of a center rotary joint can be reduced due to early oil leakage caused by eccentric abrasion when the center rotary joint is used for a long time, and the common rubber ring is easy to deform due to temperature when being used for a long time, so that the service life of the device is influenced due to the fact that manual maintenance is needed.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a gap-sealed hydraulic center swivel joint, comprising: the shell, the inside movable cover of shell is equipped with the dabber, dabber one end fixed mounting has the flange.
Preferably, the two ends of the mandrel are respectively sleeved with a first ball bearing and a second ball bearing, and the outer part of the bearing is fixedly connected with the shell.
Preferably, the outer part of the shell is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are communicated with a through oil duct inside the mandrel.
Preferably, the outer movable sleeves of the ball bearings I and II at the two ends of the mandrel are provided with inflation oil seals.
Preferably, the outer parts of the two inflatable oil seals are fixedly provided with soft rubber rings, and the middle parts of the soft rubber rings are fixedly provided with air valves.
Preferably, the oil hole formed in the flange is movably sleeved with two sealing rings, the outer part of the shell is provided with an inflation groove, one end of the shell is fixedly provided with a gland, and the inside of the gland is fixedly provided with a mounting block.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, the soft rubber ring fixedly arranged outside the inflation oil seal has elasticity, the air valve can be placed into the inflation oil seal through the soft rubber ring, then the inflation oil seal and the mandrel are placed into the shell, and the air valve can be aligned with the inflation groove after being placed, so that the inflation oil seal is more convenient to inflate and is abandoned to adjust, and the time and the labor are saved.
2. The inflatable oil seal is arranged on the outer sides of the first ball bearing and the second ball bearing, fluid leakage is effectively prevented after the inflatable oil seal is arranged, the internal sealing effect is better, the reliability is stronger, the applicability is improved effectively, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic side perspective view of a gap-sealed hydraulic center swivel joint according to the present utility model;
FIG. 2 is a schematic view of the internal structure of a gap-sealed hydraulic center rotary joint according to the present utility model;
FIG. 3 is an enlarged schematic view of the gap-sealed hydraulic center rotary joint shown in FIG. 2 at A;
fig. 4 is a schematic diagram of an internal structure of a gap-sealed hydraulic center rotary joint according to the present utility model.
Legend description:
1. a flange; 2. a mandrel; 3. a seal ring; 4. a housing; 5. a mounting block; 6. an oil inlet and outlet I; 7. a ball bearing II; 8. an inflation oil seal; 9. an oil inlet and outlet II; 10. a ball bearing I; 11. a soft rubber ring; 12. a valve; 13. an air charging tank; 14. and (5) pressing cover.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Embodiment 1 as shown in fig. 1-4, the present utility model provides a gap-sealed hydraulic center rotary joint, comprising: the shell 4, the inside movable cover of shell 4 is equipped with dabber 2, and dabber 2 one end fixed mounting has flange 1.
Further, as shown in fig. 1-4, two ends of the mandrel 2 are respectively sleeved with a first ball bearing 10 and a second ball bearing 7, and the first ball bearing 10 and the second ball bearing 7 are fixedly connected with the shell 4 outside the bearings and are used for supporting the mandrel 2 to connect the mandrel 2 with the shell 4.
Further, as shown in fig. 1-4, an oil inlet and outlet 6 and an oil inlet and outlet 9 are formed in the outer portion of the shell 4, and the oil inlet and outlet 6 and the oil inlet and outlet 9 are communicated with a through oil duct in the mandrel 2.
Further, as shown in fig. 1-4, the ball bearings 10 at the two ends of the mandrel 2 and the ball bearings 7 are movably sleeved outside the two inflatable oil seals 8, a soft rubber ring 11 is fixedly arranged outside the two inflatable oil seals 8, and a valve 12 is fixedly arranged in the middle of the soft rubber ring 11, so that the adaptability of the size of the inflatable oil seal to the size of the controllable seal adjustment oil seal is stronger.
Further, as shown in fig. 1-4, a soft rubber ring 11 is fixedly installed outside the two inflation oil seals 8, a valve 12 is fixedly installed in the middle of the soft rubber ring 11, the valve 12 is arranged for inflating or discarding the inflation oil seal 8, and the soft rubber ring 11 can press the valve 12 into the inflation oil seal 8 to be placed into the shell 4.
Further, as shown in fig. 1-4, two sealing rings 3 are movably sleeved in an oil hole formed in the flange 1, an air charging groove 13 is formed in the outer portion of the shell 4, a gland 14 is fixedly mounted at one end of the shell 4, a mounting block 5 is fixedly mounted in the gland 14, and the air charging groove 13 is formed to adjust the air charging oil seal 8 without being dismounted, so that time and labor are saved.
Working principle: the outside fixed mounting's of inflation oil blanket 8 soft rubber ring 11 has elasticity, can put into the inside of inflation oil blanket 8 through soft rubber ring 11 with valve 12, put into casing 4 with inflation oil blanket 8 and dabber 2 again, put into back valve 12 and can align the air tank 13, more conveniently inflate and give up adjusting inflation oil blanket 8 labour saving and time saving, the outside at ball bearing one 10 and ball bearing two 7 is installed to inflation oil blanket 8, effectively prevent fluid leakage after finishing the installation of inflation oil blanket 8, inside sealed effect is better, the reliability is stronger effectively promotes the suitability, increase device life.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (4)
1. A gap-sealed hydraulic center swivel joint, comprising: the device comprises a shell (4), wherein a mandrel (2) is movably sleeved in the shell (4), and a flange (1) is fixedly arranged at one end of the mandrel (2); the two ends of the mandrel (2) are movably sleeved with a first ball bearing (10) and a second ball bearing (7) respectively, and an inflation oil seal (8) is arranged on the outer part of the first ball bearing and the outer part of the second ball bearing; the outer parts of the two inflation oil seals (8) are fixedly provided with soft rubber rings (11), and the middle parts of the soft rubber rings (11) are fixedly provided with air valves (12).
2. A gap-sealed hydraulic center rotary joint according to claim 1, wherein: the two ends of the mandrel (2) are respectively sleeved with a first ball bearing (10) and a second ball bearing (7), and the outer part of the bearing is fixedly connected with the shell (4).
3. A gap-sealed hydraulic center rotary joint according to claim 1, wherein: an oil inlet and outlet I (6) and an oil inlet and outlet II (9) are formed in the outer portion of the shell (4), and the oil inlet and outlet I (6) and the oil inlet and outlet II (9) are communicated with an oil passage in the mandrel (2).
4. A gap-sealed hydraulic center rotary joint according to claim 1, wherein: two sealing rings (3) are movably sleeved in an oil hole formed in the flange (1), an air charging groove (13) is formed in the outer portion of the shell (4), a gland (14) is fixedly mounted at one end of the shell (4), and a mounting block (5) is fixedly mounted in the gland (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964454.1U CN220470918U (en) | 2023-07-25 | 2023-07-25 | Gap sealing type hydraulic center rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964454.1U CN220470918U (en) | 2023-07-25 | 2023-07-25 | Gap sealing type hydraulic center rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470918U true CN220470918U (en) | 2024-02-09 |
Family
ID=89776100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321964454.1U Active CN220470918U (en) | 2023-07-25 | 2023-07-25 | Gap sealing type hydraulic center rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470918U (en) |
-
2023
- 2023-07-25 CN CN202321964454.1U patent/CN220470918U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |