CN210423716U - Sealing element for rotating body and spinning device comprising same - Google Patents
Sealing element for rotating body and spinning device comprising same Download PDFInfo
- Publication number
- CN210423716U CN210423716U CN201921057532.3U CN201921057532U CN210423716U CN 210423716 U CN210423716 U CN 210423716U CN 201921057532 U CN201921057532 U CN 201921057532U CN 210423716 U CN210423716 U CN 210423716U
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- China
- Prior art keywords
- rotating body
- ring
- spring
- sealing
- graphite
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 238000009987 spinning Methods 0.000 title claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 239000010439 graphite Substances 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to a hydrodynamics field discloses a spinning device that is used for sealing member of rotator and contains this sealing member. The spinning device comprises a sealing element, a rotating body, a fixed body, a rolling bearing, a locking ring and a supporting seat, wherein the sealing element is used for the rotating body, one end of the rolling bearing is fixedly connected with the sealing element, the other end of the rolling bearing is connected with the locking ring, the supporting seat is fixedly connected with the locking ring, and the rotating body is sleeved outside or inside the fixed body and rotates relative to the fixed body. The sealing element for the rotating body comprises a graphite ring, a spring and a spring pressure controller, the graphite ring is arranged between the rotating body and the fixed body to realize rotary sealing, the spring pressure controller is connected with the rotating body, one end of the spring abuts against the spring pressure controller, and the other end of the spring abuts against the fixed body. The utility model discloses simple structure, convenient to use through the stiction of spring pressure controller regulating spring to the graphite ring, has improved the sealing performance of device.
Description
Technical Field
The utility model belongs to the technical field of hydrodynamics and specifically relates to a spinning device that is used for sealing member of rotator and contains this sealing member.
Background
The rotary joint is mainly used in places where the structure needs to rotate and fluid media need to be provided, and is an essential component for conveying the fluid media in a pipeline to a rotating system and conveying the fluid flowing in a static pipeline to a rotating component so as to uniformly mix the fluid media.
The most of the joints where the fluid flows from the delivery pipe to the rotating equipment, namely the joints of the rotating joints, adopt a packing sealing structure, and the packing is slowly worn down along with the working time, so that the sealing structure fails and the liquid leaks. With the continuous improvement of the technical level of the mechanical industry, researchers continuously improve the original spinning structure, and successively develop mechanical sealing devices suitable for various environments.
The rotary joints manufactured at present are basically connected to the rotating shaft through bearings, and the sealing structures are also sealing elements made of various synthetic materials, graphite and the like. Other sealing devices also disclose the use of compression springs to compress graphite to compensate for wear of graphite, but the compression springs are adaptive springs, which, although good in sealing effect, cannot manually adjust the compression force of the compression springs on the graphite. As the graphite slowly wears, the compression force of the compression spring against the graphite also slowly decreases, eventually leading to failure of the seal. If the compression of the compression spring is increased so that the graphite is completely worn, the compression spring is still in a compressed state. Although the sealing effect is good, the structure is blocked by the compression spring and cannot rotate under the condition that the torque of the external force is relatively small.
In view of the above, the present inventors have made extensive studies on the above-mentioned defects of the rotary seal structure in the prior art, and have made the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model provides a spinning device that is used for sealing member of rotator and contains this sealing member aims at solving the wearing and tearing along with graphite that exist among the above-mentioned background art, and compression spring slowly reduces the technical problem who leads to sealed inefficacy to the stiction of graphite.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the sealing element for the rotating body is sleeved outside or inside the fixed body and rotates relative to the fixed body, the sealing element comprises a graphite ring, a spring and a spring pressure controller, the graphite ring is arranged between the rotating body and the fixed body to achieve rotary sealing, the spring pressure controller is connected with the rotating body, one end of the spring abuts against the spring pressure controller, and the other end of the spring abuts against the fixed body.
Furthermore, a second convex ring is arranged on the outer wall of the fixing body, the other end of the spring is connected with one side of the second convex ring, and one side of the graphite ring is in contact sealing with the other side of the second convex ring.
Further, a first convex ring is arranged on the inner wall of the rotating body, and the other surface of the graphite ring is in contact with and sealed with the first convex ring.
Further, the spring pressure controller comprises a first end cover arranged on the end face of the rotating body, an elastic sealing gasket positioned between the first end cover and the rotating body, and a fastening screw for fixing the first end cover on the end face.
Furthermore, the contact plane of the graphite ring and the second convex ring which are contacted with each other is a conical surface, and the contact plane of the graphite ring and the first convex ring which are contacted with each other is a plane.
Further, the spring is sleeved on the outer wall of the fixed body, and a gap is reserved between the spring and the rotating body. The gap is left between the spring and the rotating body to prevent the rotating body from being blocked by the spring.
A spinning device, including a sealing member for a rotating body, the rotating body, a fixed body, characterized in that: the spinning device further comprises a rolling bearing, a locking ring and a supporting seat, one end of the rolling bearing is fixedly connected with the sealing element, the other end of the rolling bearing is connected with the locking ring, and the supporting seat is fixedly connected with the locking ring.
Further, in order to prevent substances such as dust, water and the like from entering the inside of the sealing element and affecting the sealing performance of the device, the spinning device further comprises a second end cover, and the second end cover is in threaded connection with the locking ring through a fastening screw.
Further, the fixed body is a pipe, and the rotating body is a drum.
The utility model relates to a spinning device that is used for sealing member of rotator and contains this sealing member is simple structure not only, convenient to use, and after the graphite ring wearing and tearing, can adjust spring pressure controller moreover, the adjusting spring is to the tight pressure of graphite ring to guarantee that the spring is unchangeable to the tight pressure of graphite ring, improved sealing performance greatly.
Drawings
Fig. 1 is a schematic cross-sectional view of a sealing device for a rotating body according to the present invention;
fig. 2 is an enlarged schematic structure diagram at a in fig. one.
In the figure:
rotating body 1 and fixed body 2
First convex ring 11 and second convex ring 21
Graphite ring 3 spring 4
Rolling bearing 6 locking ring 7
Support base 8 second end cap 9
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, there is shown a spinning apparatus in which a rotating body 1 is sleeved outside a fixed body 2 and rotated with respect to the fixed body 2. A spinning device comprises a sealing element used for sealing a rotating body 1 and a fixed body 2, the rotating body 1 and the fixed body 2, and further comprises a rolling bearing 6, a locking ring 7 and a supporting seat 8. One end of the rolling bearing 6 is fixedly connected with the rotating body 1, the other end of the rolling bearing is fixedly connected with the locking ring 7, and the supporting seat 8 is fixedly connected with the locking ring 7. The sealing element comprises a graphite ring 3, a spring 4 and a spring pressure controller 5, wherein the graphite ring 3 is arranged between the rotating body 1 and the fixed body 2 to realize rotary sealing, the spring pressure controller 5 is connected with the rotating body 1, one end of the spring 3 is abutted on the spring pressure controller 5, and the other end of the spring is abutted on the fixed body 2. The supporting base 8 serves to support the entire spinning device so that the rotating body 1 does not touch the ground when rotating. Wherein, spring 4 is compression spring, and spring pressure controller 5 is connected to spring 4 one end, and the other end is connected the fixed body 2, and is in compression state.
Preferably, the rotating body 1 is a drum, and the fixed body 2 is a pipe. It is clear that the rotating body 1 and the fixed body 2 can also take other specific forms, as long as the rotating body 1 is able to rotate and is hollow and the fixed body 2 is fixed and hollow.
Further, the outer wall of the fixed body 2 is provided with a second convex ring 21, and the inner wall of the rotating body 1 is provided with a first convex ring 11. One side of the second convex ring 21 is connected with one end of the spring 3, and the other side of the second convex ring is in sealing contact with one side of the graphite ring 3. The other surface of the graphite ring 3 and the first convex ring 11 are in contact sealing with each other. The contact plane of the graphite ring 3 and the second convex ring 21 is a conical surface, and the contact plane of the graphite ring and the first convex ring 11 is a plane. In order to realize this technique, the graphite ring 3 is only required to be arranged such that one surface is a conical surface and the other surface is a flat surface, the cross section of the second projecting ring 21 is a right trapezoid, and the cross section of the first projecting ring 11 is a rectangle. The surface of the graphite ring 3 can be better suitable for processing and sealing by adopting the design. With the extension of the service life, the graphite ring 3 is gradually worn, the contact area between the graphite ring 3 and the second convex ring 21 is gradually increased, and the sealing of the structure can be better realized. Of course, the ink ring 3 may have another shape, and in this case, the surfaces of the second projecting ring 21 that are in sealing contact with the graphite ring 3 may be fitted to each other, and the surfaces of the first projecting ring 11 that are in sealing contact with the graphite ring 3 may be fitted to each other.
The core of the utility model lies in, the sealing member still includes spring pressure controller 5, through adjustment spring pressure controller 5, realizes the controllable regulation of the 4 tight pressures of spring.
In a preferred embodiment of the spring pressure controller 5 of the present invention, the spring pressure controller 5 includes a first end cap 51 disposed on the end surface of the rotating body 1, an elastic packing 52 disposed between the first end cap 51 and the rotating body 1, and a fastening screw 53 for fixing the first end cap 51 to the end surface. The first end cap 51 is not connected to the fixed body 2, and holes for the fastening screws 53 to pass through are dug in the first end cap 51 and the rotating body 2. When the rotating body 1 rotates, the spring pressure controller 5 rotates along with the rotating body 1. Of course, the spring pressure controller 5 may also adopt other structures to realize the adjustment of the tightening force of the spring 4.
When the graphite ring 3 is worn, the fastening screw 53 can be screwed, the elastic sealing gasket 52 will be compressed, and the first end cover 51 is further compressed by the spring 4, the spring 4 pushes the second convex ring 21, and the graphite ring 3 is pressed by the second convex ring 21 and the first convex ring 11, so that the device is sealed. Of course, if the structure is locked and cannot be rotated, the fastening screw 53 can be loosened to adjust the tightening pressure of the spring 4. When the tightening screw 53 cannot be tightened any further, this indicates that the resilient sealing pad 52 cannot be compressed any more, i.e. that the graphite ring 3 may be worn more seriously, thus indicating to the worker the need to replace the graphite ring 3.
In order to further prevent the rotating body 1 from being locked when rotating, the spring 4 is sleeved on the outer wall of the fixed body 2, and a gap with a proper size is left between the spring 4 and the rotating body 1.
Preferably, in order to prevent dust, water and the like from entering the inside of the sealing member, the spinning device may be additionally provided with a second end cap 9, and the second end cap 9 is in threaded connection with the locking ring 7 through a fastening screw 53.
The above is only the case where the rotating body 1 is fitted to the outside of the fixed body 2 and rotates relative to the fixed body 2. When the rotating body 1 is sleeved in the fixed body 2, the spring pressure control part 5 is connected with the fixed body 2, the outer wall of the rotating body 1 is provided with a first convex ring 11, the inner wall of the fixed body 2 is provided with a second convex ring 21, and a graphite ring 3 is arranged between the two convex rings. One end of the spring is connected with the spring pressure control member 5, and the other end is connected with the second convex ring on the fixed body 2. The spring pressure control member 5 also comprises a first end cap 51, an elastic packing 52 between the first end cap 51 and the rotary body 1, and a fastening screw 53 for fixing the first end cap 51 to the end surface. When the graphite ring 3 is worn, the fastening screw 53 can be rotated to further compress the elastic sealing gasket 52, so that the spring 4 is compressed, and the spring 4 pushes the second convex ring 21 to compress the graphite ring 3, thereby ensuring the sealing performance of the device.
The utility model relates to a spinning device that is used for sealing member of rotator and contains this sealing member is simple structure not only, convenient to use, and when the 3 back of wearing and tearing of graphite ring, can adjust spring pressure controller 5 moreover, artifical manual adjustment spring 4 is to the sticising power size of graphite ring 3 to guarantee that spring 4 is unchangeable to the sticising power of graphite ring 3, improved sealing performance greatly.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A seal for a rotating body that is journalled for rotation outside or inside a stationary body and relative to the stationary body, characterized by: the sealing member includes graphite ring, spring and spring pressure controller, the graphite ring sets up in order to realize rotary seal between rotator and the fixed body, this spring pressure controller is connected with the rotator, and this spring one end butt is in on spring pressure controller, and the other end butt is in on the fixed body.
2. A seal for a rotating body according to claim 1, wherein: the outer wall of the fixed body is provided with a second convex ring, the other end of the spring is connected with one side of the second convex ring, and one side of the graphite ring is in contact sealing with the other side of the second convex ring.
3. A seal for a rotating body according to claim 2, wherein: the inner wall of the rotating body is provided with a first convex ring, and the other surface of the graphite ring is in contact with and sealed with the first convex ring.
4. A seal for a rotating body according to claim 3, wherein: the spring pressure controller comprises a first end cover arranged on the end face of the rotating body, an elastic sealing gasket positioned between the first end cover and the rotating body, and a fastening screw for fixing the first end cover on the end face.
5. The seal for a rotating body according to claim 4, wherein: the contact plane of the graphite ring and the second convex ring which are contacted with each other is a conical surface, and the contact plane of the graphite ring and the first convex ring which are contacted with each other is a plane.
6. A seal for a rotating body according to claim 1, wherein: the spring is sleeved on the outer wall of the fixed body, and a gap is reserved between the spring and the rotating body.
7. A spinning apparatus comprising the sealing member for a rotating body, the rotating body, and the fixed body according to any one of claims 1 to 6, characterized in that: the spinning device further comprises a rolling bearing, a locking ring and a supporting seat, one end of the rolling bearing is fixedly connected with the sealing element, the other end of the rolling bearing is connected with the locking ring, and the supporting seat is fixedly connected with the locking ring.
8. A flow forming apparatus according to claim 7, wherein: the spinning device further comprises a second end cover, and the second end cover is in threaded connection with the locking ring through a fastening screw.
9. A flow forming apparatus according to claim 8, wherein: the fixed body is a pipeline, and the rotating body is a roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057532.3U CN210423716U (en) | 2019-07-08 | 2019-07-08 | Sealing element for rotating body and spinning device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057532.3U CN210423716U (en) | 2019-07-08 | 2019-07-08 | Sealing element for rotating body and spinning device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423716U true CN210423716U (en) | 2020-04-28 |
Family
ID=70379530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921057532.3U Expired - Fee Related CN210423716U (en) | 2019-07-08 | 2019-07-08 | Sealing element for rotating body and spinning device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423716U (en) |
-
2019
- 2019-07-08 CN CN201921057532.3U patent/CN210423716U/en not_active Expired - Fee Related
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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: 20200428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |