CN220228247U - Sealing structure for rotary joint - Google Patents
Sealing structure for rotary joint Download PDFInfo
- Publication number
- CN220228247U CN220228247U CN202321964449.0U CN202321964449U CN220228247U CN 220228247 U CN220228247 U CN 220228247U CN 202321964449 U CN202321964449 U CN 202321964449U CN 220228247 U CN220228247 U CN 220228247U
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- CN
- China
- Prior art keywords
- shell
- fixedly connected
- ring
- rotary joint
- telescopic rod
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- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 238000001125 extrusion Methods 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 13
- 239000000428 dust Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a sealing structure for a rotary joint, which relates to the technical field of rotary joints and comprises the following components: the outer surface of the shell is provided with a mounting groove, and the inner wall of the shell is fixedly embedded with a bearing; the rotating shaft is in interference fit with the inner ring of the bearing; the telescopic rod I is fixedly arranged at the bottom of the inner wall of the mounting groove, the top end of the telescopic rod I is fixedly connected with a connecting plate, the outer surface of the telescopic rod I is movably sleeved with a spring, and one end of the connecting plate, which is far away from the telescopic rod I, is fixedly connected with a rubber sealing ring.
Description
Technical Field
The utility model relates to the technical field of rotary joints, in particular to a sealing structure for a rotary joint.
Background
The rotary joint supports the compact design structure of 1-42 channels for simultaneously transmitting various media such as gas, liquid, oil and the like, and is effectively integrated into customer equipment by adopting flange connection.
In the prior art, for example, the Chinese patent number is: CN216843569U, a sealing structure for rotary joint, including sealing baffle, sealing baffle is the ring structure, sealing baffle overlaps in the gap outside of dabber and casing junction, sealing baffle's one side is fixed on dabber or casing, leaves the clearance between opposite side inner wall and dabber or the casing outer wall to sealing baffle opposite side inner wall does not produce resistance with dabber or casing when rotating the dabber. The sealing structure is simple in structure, small in processing difficulty, free of influencing processing and manufacturing of all parts of original equipment, and capable of improving the original equipment in a simple mode. The rotary joint can effectively prevent dust, slag and other foreign matters from entering the bearing in the static and rotary processes, so that the bearing is well protected, and the service life of the bearing is greatly prolonged.
Although the above solution has the advantages as described above, it is disadvantageous in that although it can effectively prevent dust, slag and other foreign matters from entering the bearing, it is not considered that a small amount of fluid flows into the bearing through the rotating gap, and gaps exist at the sealing position, which results in poor sealing effect, and fluid leaks out through the gaps at the connecting position, causing waste, and even accident if the fluid is dangerous.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, although foreign matters such as dust, slag and the like can be effectively prevented from entering the bearing, a small amount of fluid can flow into the bearing through a rotating gap, a gap exists at a sealing position, the sealing effect is poor, the fluid can leak out through the gap at a connecting position, waste is caused, and accidents are caused if the fluid is dangerous.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a seal structure for a rotary joint, comprising:
the outer surface of the shell is provided with a mounting groove, and the inner wall of the shell is fixedly embedded with a bearing;
the rotating shaft is in interference fit with the inner ring of the bearing, and a flange is fixedly sleeved on the outer surface of the rotating shaft;
the telescopic rod I is fixedly arranged at the bottom of the inner wall of the mounting groove, the top end of the telescopic rod I is fixedly connected with a connecting plate, a spring is movably sleeved on the outer surface of the telescopic rod I, and one end, away from the telescopic rod I, of the connecting plate is fixedly connected with a rubber sealing ring.
Preferably, the crack between the flange and the shell forms an annular groove, and the rubber sealing ring is in transition fit with the annular groove.
Preferably, the outer surface fixed cover of shell is equipped with fixed ring board, one side fixedly connected with telescopic link two of fixed ring board, telescopic link two keep away from the one end fixedly connected with slip ring board of fixed ring board, slip ring board movable sleeve is established the surface of shell.
Preferably, the fixed ring plate is connected with a threaded rod through a threaded hole, one end of the threaded rod is fixedly connected with a rotary table, and the other end of the threaded rod is rotationally connected with the sliding ring plate.
Preferably, a transition ring plate is fixedly connected to one side of the sliding ring plate, an extrusion ring plate is fixedly connected to one side of the transition ring plate, and a circular truncated cone-shaped hole is formed in the inner wall of the extrusion ring plate.
Preferably, the inner wall of the circular truncated cone-shaped hole is in sliding fit with the rubber sealing ring.
Compared with the prior art, the utility model has the advantages and positive effects that,
according to the utility model, external dust is effectively prevented from entering the bearing through the rubber sealing ring in the annular groove, the use of the bearing is influenced, fluid can be effectively prevented from flowing outside, the first telescopic rod and the spring which are arranged in the mounting groove are used for fixing the rubber sealing ring through the connecting plate, the rubber sealing ring is prevented from being excessively deformed when rotating along with the rotating shaft due to the fact that the rubber sealing ring is not fixed, and the sealing effect is influenced.
According to the utility model, the rotary table is rotated, so that the threaded rod rotates relative to the fixed ring plate, the sliding ring plate slides on the shell, the transition ring plate and the extrusion ring plate are driven to approach the rubber sealing ring, the extrusion ring plate gradually extrudes the outer ring of the rubber sealing ring through the inner wall of the circular table-shaped hole, so that the rubber sealing ring is extruded to two sides and the inside to deform and is tightly attached to the annular groove, the rotation condition of the rotary shaft is observed through controlling the deformation quantity of the rubber sealing ring, a proper state is achieved, the sealing effect is better under the condition that the rotary shaft normally rotates, and meanwhile, when the abrasion of the rubber sealing ring is reduced, the rubber sealing ring can be continuously used through extrusion, and the service life of the rubber sealing ring is prolonged.
Drawings
FIG. 1 is a schematic view of the whole structure of a seal structure for a rotary joint according to the present utility model;
FIG. 2 is an exploded view of the overall structure of a seal structure for a rotary joint according to the present utility model;
FIG. 3 is a schematic view of an annular groove structure of a seal structure for a rotary joint according to the present utility model;
fig. 4 is a schematic cross-sectional view of a part of a seal structure for a rotary joint according to the present utility model.
Legend description:
1. a housing; 101. a mounting groove; 2. a rotating shaft; 3. a flange; 4. a bearing; 5. an annular groove; 6. a rubber seal ring; 7. a first telescopic rod; 701. a spring; 8. a connecting plate; 9. a fixed ring plate; 10. a second telescopic rod; 11. a sliding ring plate; 12. a threaded rod; 13. a turntable; 14. a transition ring plate; 15. extruding the annular plate; 151. a circular truncated cone-shaped hole.
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 to 4, the present utility model provides a sealing structure for a rotary joint, comprising: the shell 1, the outer surface of the shell 1 is provided with an installation groove 101, and the inner wall of the shell 1 is fixedly embedded with a bearing 4; the rotating shaft 2 is in interference fit with the inner ring of the bearing 4, and a flange 3 is fixedly sleeved on the outer surface of the rotating shaft 2; the telescopic rod I7 is fixedly arranged at the bottom of the inner wall of the mounting groove 101, the top end of the telescopic rod I7 is fixedly connected with a connecting plate 8, a spring 701 is movably sleeved on the outer surface of the telescopic rod I7, one end of the connecting plate 8, which is far away from the telescopic rod I7, is fixedly connected with a rubber sealing ring 6, an annular groove 5 is formed by a crack between the flange 3 and the shell 1, and the rubber sealing ring 6 is in transition fit with the annular groove 5.
In this embodiment, prevent effectively that external dust from getting into the inside of bearing 4 through the rubber seal 6 in the ring channel 5, influence the use of bearing 4, when shell 1 rotates with pivot 2 relatively, need leave the rotation gap, there is a small amount of fluid to flow to the bearing 4 inside through the rotation gap, also can prevent effectively that the fluid from flowing outside through rubber seal 6, install the telescopic link one 7 and the spring 701 in the mounting groove 101 inside and pass through connecting plate 8 fixed rubber seal 6, prevent rubber seal 6 because of not fixing, produce deformation too big when leading to following pivot 2 rotation, influence sealed effect, this device seals under the circumstances that reduces pivot 2 rotation influence, prevent external dust entering device, prevent simultaneously that internal fluid from leaking outward.
In the embodiment 2, as shown in fig. 1-4, a mounting groove 101 is formed on the outer surface of the shell 1, and a bearing 4 is fixedly embedded in the inner wall of the shell 1; the rotating shaft 2 is in interference fit with the inner ring of the bearing 4, and a flange 3 is fixedly sleeved on the outer surface of the rotating shaft 2; the telescopic rod I7, fixed mounting is in the bottom of mounting groove 101 inner wall, the top fixedly connected with connecting plate 8 of telescopic rod I7, the surface movable sleeve of telescopic rod I7 is equipped with spring 701, the one end fixedly connected with rubber seal 6 of telescopic rod I7 is kept away from to connecting plate 8, crack between flange 3 and the shell 1 has formed ring channel 5, rubber seal 6 and ring channel 5 transition fit, the surface fixed sleeve of shell 1 is equipped with fixed ring plate 9, one side fixedly connected with telescopic rod II 10 of fixed ring plate 9, the one end fixedly connected with slip ring plate 11 of fixed ring plate 9 is kept away from to telescopic rod II 10, the surface at shell 1 is established to slip ring plate 11 movable sleeve, fixed ring plate 9 is through screw hole threaded connection, one end fixedly connected with carousel 13 of threaded rod 12, the other end and the slip ring plate 11 rotation of threaded rod 12 are connected, one side fixedly connected with transition ring plate 14 of slip ring plate 11, one side fixedly connected with extrusion ring plate 15 of transition ring plate 14, the inner wall in extrusion ring plate 15 has seted up boss shape hole 151, the inner wall in boss shape hole 151 and rubber seal 6 sliding fit.
In this embodiment, rotate carousel 13, make threaded rod 12 rotate relative to fixed ring plate 9, under the direction spacing of telescopic link two 10, make slip ring plate 11 slide more smoothly on shell 1, thereby drive transition ring plate 14 and extrusion ring plate 15 and be close to rubber seal 6, extrusion ring plate 15 extrudees the outer lane of rubber seal 6 through the inner wall of round platform shape hole 151 gradually, make rubber seal 6 receive the extrusion to both sides and inside produce deformation, the inseparabler laminating with ring channel 5, the drill way diameter that round platform shape hole 151 is close to rubber seal 6 is slightly greater than the diameter under rubber seal 6 natural state, through telescopic link one 7 and spring 701 scalability, guarantee that rubber seal 6 can not influence the connection between the connecting plate 8 when deformation, transition ring plate 14 is when driving extrusion ring plate 15 and extruding rubber seal 6, this device is through the deformation volume of control rubber seal 6, the rotation condition of pivot 2 is observed again, under the circumstances of guaranteeing that pivot 2 normally rotates, make sealed effect better, simultaneously when rubber seal 6 is less in the deformation wear and tear, can continue the life through extrusion rubber seal 6.
Working principle: the rubber sealing ring 6 in the annular groove 5 effectively prevents external dust from entering the inside of the bearing 4, influences the use of the bearing 4, when the shell 1 and the rotating shaft 2 rotate relatively, a small amount of fluid needs to leave a rotating gap, and flows into the bearing 4 through the rotating gap, the rubber sealing ring 6 can also effectively prevent the fluid from flowing to the outside, the telescopic rod I7 and the spring 701 arranged in the mounting groove 101 fix the rubber sealing ring 6 through the connecting plate 8, the rubber sealing ring 6 is prevented from being excessively deformed when the rubber sealing ring 6 rotates along with the rotating shaft 2 due to the fact that the rubber sealing ring 6 is not fixed, the sealing effect is influenced, the device seals under the condition of reducing the influence of the rotation of the rotating shaft 2, prevents the external dust from entering the device, simultaneously prevents the internal fluid from leaking out, rotates the rotary disc 13, enables the threaded rod 12 to rotate relative to the fixed ring plate 9, under the guiding limit of the telescopic rod II 10, the sliding ring plate 11 slides on the shell 1 more smoothly, thereby driving the transition ring plate 14 and the extrusion ring plate 15 to approach the rubber sealing ring 6, the extrusion ring plate 15 gradually extrudes the outer ring of the rubber sealing ring 6 through the inner wall of the circular truncated cone-shaped hole 151, so that the rubber sealing ring 6 is extruded to two sides and is deformed inwards, the rubber sealing ring is tightly attached to the annular groove 5, the diameter of the orifice of the circular truncated cone-shaped hole 151, which is close to the rubber sealing ring 6, is slightly larger than the diameter of the rubber sealing ring 6 in a natural state, the connection between the rubber sealing ring 6 and the connecting plate 8 is not influenced when the rubber sealing ring 6 is deformed through the scalability of the telescopic rod 7 and the spring 701, the transition ring plate 14 can not extrude the connecting plate 8 when the extrusion ring plate 15 is driven to extrude the rubber sealing ring 6, the device achieves a proper state by controlling the deformation quantity of the rubber sealing ring 6 and observing the rotation condition of the rotating shaft 2, under the condition of ensuring normal rotation of the rotating shaft 2, the sealing effect is better, and meanwhile, when the abrasion of the rubber sealing ring 6 is reduced, the rubber sealing ring can be continuously used through extrusion, so that the service life of the rubber sealing ring 6 is prolonged.
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 (6)
1. A seal structure for a rotary joint, comprising:
the device comprises a shell (1), wherein an installation groove (101) is formed in the outer surface of the shell (1), and a bearing (4) is fixedly embedded in the inner wall of the shell (1);
the rotating shaft (2) is in interference fit with the inner ring of the bearing (4), and a flange (3) is fixedly sleeved on the outer surface of the rotating shaft (2);
the telescopic rod I (7) is fixedly installed at the bottom of the inner wall of the mounting groove (101), a connecting plate (8) is fixedly connected to the top end of the telescopic rod I (7), a spring (701) is movably sleeved on the outer surface of the telescopic rod I (7), and a rubber sealing ring (6) is fixedly connected to one end, away from the telescopic rod I (7), of the connecting plate (8).
2. A sealing structure for a rotary joint according to claim 1, wherein: the annular groove (5) is formed by the crack between the flange (3) and the shell (1), and the rubber sealing ring (6) is in transition fit with the annular groove (5).
3. A sealing structure for a rotary joint according to claim 1, wherein: the outer surface fixed cover of shell (1) is equipped with fixed ring board (9), one side fixedly connected with telescopic link two (10) of fixed ring board (9), telescopic link two (10) are kept away from one end fixedly connected with slip ring board (11) of fixed ring board (9), slip ring board (11) movable sleeve is established the surface of shell (1).
4. A sealing structure for a rotary joint according to claim 3, wherein: the fixed ring plate (9) is connected with a threaded rod (12) through a threaded hole, one end of the threaded rod (12) is fixedly connected with a rotary table (13), and the other end of the threaded rod (12) is rotationally connected with the sliding ring plate (11).
5. A sealing structure for a rotary joint according to claim 4, wherein: one side of slip crown plate (11) fixedly connected with transition crown plate (14), one side of transition crown plate (14) fixedly connected with extrusion crown plate (15), round platform shape hole (151) have been seted up to the inner wall of extrusion crown plate (15).
6. A seal structure for a rotary joint according to claim 5, wherein: the inner wall of the round table-shaped hole (151) is in sliding fit with the rubber sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964449.0U CN220228247U (en) | 2023-07-25 | 2023-07-25 | Sealing structure for rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964449.0U CN220228247U (en) | 2023-07-25 | 2023-07-25 | Sealing structure for rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220228247U true CN220228247U (en) | 2023-12-22 |
Family
ID=89185696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321964449.0U Active CN220228247U (en) | 2023-07-25 | 2023-07-25 | Sealing structure for rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220228247U (en) |
-
2023
- 2023-07-25 CN CN202321964449.0U patent/CN220228247U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |