CN209196127U - A kind of dynamic sealing device being able to bear strong corrosion - Google Patents
A kind of dynamic sealing device being able to bear strong corrosion Download PDFInfo
- Publication number
- CN209196127U CN209196127U CN201821607159.XU CN201821607159U CN209196127U CN 209196127 U CN209196127 U CN 209196127U CN 201821607159 U CN201821607159 U CN 201821607159U CN 209196127 U CN209196127 U CN 209196127U
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- Prior art keywords
- sleeve
- stainless steel
- ring
- short sleeve
- assembly
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- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 238000005260 corrosion Methods 0.000 title claims abstract description 16
- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 61
- 239000010935 stainless steel Substances 0.000 claims abstract description 60
- 239000000919 ceramic Substances 0.000 claims abstract description 54
- 230000000670 limiting effect Effects 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of dynamic sealing devices being able to bear strong corrosion, including moving ring assembly and sleeve assembly, the moving ring assembly includes rotating ring and rotating seat, the rotating ring is fitted in rotating seat along axially slidable, the sleeve assembly includes ceramic short sleeve and stainless steel axle sleeve, the stainless steel axle sleeve is axially connect with ceramic short sleeve, and the ceramic short sleeve is located at media end；The moving ring sleeve is mounted in the lateral wall of ceramic short sleeve, and the rotating seat is sleeved on the outside of stainless steel axle sleeve, and the rotating seat is connect with stainless steel axle sleeve；There is the first sealing ring between the rotating ring inner sidewall and ceramic short sleeve lateral wall, the ceramics short sleeve inner sidewall is equipped with the second sealing ring close to the side of media end.A kind of dynamic sealing device being able to bear strong corrosion provided by the utility model, can be applied in the operating condition of strong corrosive medium, and long service life.
Description
Technical field
The utility model relates to technical field of mechanical, a kind of specifically dynamic sealing device being able to bear strong corrosion.
Background technique
Mechanical seal is also known as end face seal, is mainly used for pump, reaction kettle, compressor, hydraulic drive and other similar devices
Rotary shaft sealing, there are diversified forms, wherein mechanical single seal can be divided into according to sealing surface quantity and Double End is close
Envelope.
In the prior art, it is usually arranged with an axle sleeve on the rotary shaft, seal assembly is sleeved on axle sleeve, and conventional
Axle sleeve is usually to be made of stainless steel material, so axle sleeve part is at first when in the operating condition for being applied to strong corrosive media
It is corroded, thus greatly reduces the service life of whole mechanical seal；It is corresponding on axle sleeve after other axle sleeve is corroded
Seal point position also easily causes the risk of leakage.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of dynamic sealing devices being able to bear strong corrosion, and can apply
In the operating condition of strong corrosive medium, and long service life.
Technical solution adopted in the utility model is: providing a kind of dynamic sealing device being able to bear strong corrosion, including rotating ring group
Part and sleeve assembly, the moving ring assembly are sleeved on sleeve assembly, and the sleeve assembly is used for moving ring assembly and rotation
Shaft is fixed, and the moving ring assembly includes rotating ring and rotating seat, and the rotating ring is fitted in rotating seat along axially slidable,
The sleeve assembly includes ceramic short sleeve and stainless steel axle sleeve, the stainless steel axle sleeve and ceramic short sleeve axis
To connection, and the ceramic short sleeve is located at media end；The moving ring sleeve is mounted in the lateral wall of ceramic short sleeve, described
Rotating seat is sleeved on the outside of stainless steel axle sleeve, and the rotating seat is connect with stainless steel axle sleeve；
There are the first sealing ring, the ceramics short sleeve inner sidewall between the rotating ring inner sidewall and ceramic short sleeve lateral wall
It is equipped with the second sealing ring close to the side of media end, is used for and rotation axis seal.
Compared with the prior art, the utility model has the following advantages:
In the dynamic sealing device being able to bear strong corrosion of the utility model, ceramic component includes ceramic short sleeve and common stainless steel
Axle sleeve, and Ceramic shaft sleeve is axially connect with stainless steel axle sleeve, and the inner hole of the two is used to be sleeved on rotary shaft outer wall simultaneously,
Middle ceramics short sleeve is located at media end；And the first sealing ring is set between rotating ring and ceramic short sleeve outer wall, it is short in ceramics
The second sealing ring is arranged in sleeve lining, and the mechanically-sealing apparatus needs two positions sealed to be all fitted in ceramics after being arranged in this way
In use in this way on short sleeve, the medium of deep-etching is directly contacted with sealing ring and ceramic short sleeve, without with stainless steel shaft
Set contact, because ceramic material has performance of being able to bear strong corrosion, the sealing device of this structure is able to use in strong corrosive medium
Operating condition in, and long service life.
As improved, the stainless steel axle sleeve is equipped with equipped hole, the ceramics short axle close to one end of ceramic short sleeve
One end of set is axially inserted into equipped hole；The ceramics short sleeve, which is located in equipped hole, is arranged with stainless steel on the outer wall of one end
Circle, the stainless steel coil are equipped with location hole；Transmission screw, and the transmission screw are radially equipped on the rotating seat
Head pass through equipped hole lateral wall and be inserted into the location hole on stainless steel coil.
It improves again, the ceramic short sleeve lateral wall is equipped with limiting groove；The stainless steel coil is equipped with open slot,
The stainless steel coil suit cooperation is in limiting groove.Limiting groove, such stainless steel coil are offered on ceramic short sleeve
Being fitted in limiting groove has axial limiting effect, will not run along axial direction, meanwhile, in order to enable stainless steel coil can be smooth
Be sleeved in limiting groove, on stainless steel coil be arranged an open slot so that it is convenient to itself and ceramic short sleeve suit.
Further, stainless steel coil both ends are located in the limiting groove and are equipped with rubber washer, and rubber washer
Outside and equipped hole inner sidewall cooperate.The setting of this two rubber washer in position, is mainly used for playing the role of cushion bumper,
The limiting groove edge and stainless steel coil effectivelying prevent in ceramic end bearing cause fragmentation there is a situation where extrusion and collision.
As an improvement, the lateral wall of the ceramics short sleeve is equipped with retention bead, the inner sidewall of the rotating ring, which is equipped with, to be held
Slot is set, the accommodation groove and retention bead surround the installation cavity to be formed for for the installation of the first sealing ring.This structure can make
The stable limit of the first sealing ring is obtained in installation cavity, to guarantee the stability of the position seals performance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dynamic sealing device being able to bear strong corrosion of the utility model.
Fig. 2 is the structural schematic diagram of the stainless steel coil in the utility model.
Wherein, 100- moving ring assembly, 101- sleeve assembly, 102- rotary shaft, 1- rotating ring, 2- rotating seat, 3- ceramics short axle
Set, 3.1- limiting groove, 3.2- retention bead, 4- stainless steel axle sleeve, 4.1- are equipped with hole, 5- stainless steel coil, 5.1- location hole,
5.2- open slot, 6- are driven screw, the first sealing ring of 7-, the second sealing ring of 8-, 9- rubber washer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
In the description of the present invention, it should be noted that the side of the instructions such as term " on ", "lower", " middle position "
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.In addition, term " first ", " second " are used for description purposes only, for phase
It mutually distinguishes, is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even
Connect ", " equipped " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
As shown in Fig. 1~2, a kind of dynamic sealing device being able to bear strong corrosion provided by the utility model, including moving ring assembly 100
With sleeve assembly 101, moving ring assembly 100 is sleeved on sleeve assembly 101, sleeve assembly 101 be used for by moving ring assembly 100 with
Rotary shaft 102 is fixed, specifically, being equipped with driving screw (not marking in figure) on sleeve assembly 101, driving screw is radially fixed
In rotary shaft 102, realization sleeve assembly is connected and fixed with rotary shaft 102 for position.
Moving ring assembly 100 includes rotating ring 1 and rotating seat 2, and rotating ring 1 is fitted in rotating seat 2 along axially slidable, specifically
, rotating seat 2 is equipped with installation cavity, and rotating ring 1 is fitted in installation cavity along axial direction, and if the bottom of installation cavity circumferentially arranged with
Dry spring, one end of spring act against installation cavity bottom, and the other end acts against rotating ring 1 on the end face of 2 side of rotating seat, bullet
Spring is mainly used for carrying out nose balance to after 1 friction surface wear of rotating ring, promotes rotating ring 1 can be tight always with corresponding stationary ring end face
Patch cooperation, is effectively ensured sealing performance.
Another aspect, sleeve assembly 101 includes ceramic short sleeve 3 and stainless steel axle sleeve 4, is set on stainless steel axle sleeve 4
There is driving screw (not marking in figure).Stainless steel axle sleeve 4 is axially connect with ceramic short sleeve 3, and ceramic short sleeve 3 is located at medium
End, rotating ring 1 are sleeved on the lateral wall of ceramic short sleeve 3, and rotating seat 2 is sleeved on the outside of stainless steel axle sleeve 4, and rotating seat 2 with
Stainless steel axle sleeve 4 connects.In the present embodiment, ceramic short sleeve 3 is made of silicon carbide material, and stainless steel axle sleeve 4 is 304 stainless steels
Material.Certainly, different according to the operating condition of practical application, ceramic short sleeve 3, stainless steel axle sleeve 4 specific material can be changed
Become.
Specifically, stainless steel axle sleeve 4 is equipped with equipped hole 4.1, one end of ceramic short sleeve 3 close to ceramic 3 one end of short sleeve
It is axially inserted into equipped hole 4.1, that is, ceramic short sleeve 3 is matched on the outside of one end of stainless steel axle sleeve 4 by stainless steel axle sleeve 4
The stainless steel outer wall for filling hole 4.1 surrounds suit.
Ceramic short sleeve 3, which is located in equipped hole 4.1, is arranged with stainless steel coil 5 on the outer wall of one end, and stainless steel coil 5 is equipped with
Location hole 5.1；It is radially equipped with transmission screw 6 on rotating seat 2, is equipped with through hole accordingly on stainless steel axle sleeve 4, works as rotating seat
2 when being sleeved on stainless steel 4 outside of axle sleeve, and the head of transmission screw 6 passes through through hole and is inserted into the location hole on stainless steel coil 5
In 5.1, realization rotating seat 2 is fixedly connected with stainless steel axle sleeve 4, to realize that stainless steel axle sleeve 4 is rotated with rotary shaft 102
When, driving rotating seat 2 rotates together.
There is the first sealing ring 7 between 3 lateral wall of 1 inner sidewall of rotating ring and ceramic short sleeve, ceramic 3 inner sidewall of short sleeve is close
The side of media end is equipped with the second sealing ring 8, for sealing with rotary shaft 102.
In order to enable stainless steel coil 5 and the equipped stability of ceramic short sleeve 3, in the present embodiment, outside ceramic short sleeve 3
Side wall is equipped with limiting groove 3.1, and in limiting groove 3.1, such limiting groove 3.1 can play the suit cooperation of stainless steel coil 5
Axial limiting effect, still, how stainless steel coil 5 is smoothly sleeved in limiting groove 3.1 in such structure, so stainless
It is provided with an open slot 5.2 on steel ring 5, can be convenient the dilatating and deformable of stainless steel coil 5, so the stainless steel coil 5 of this structure
It can smoothly be fitted in limiting groove 3.1, realize stable mounting structure.
In addition, since ceramic material is harder, angle is collapsed in easy fragmentation after collision, so stainless steel coil 5 and limiting groove
In the structure of 3.1 suits, it is located at 5 both ends of stainless steel coil in limiting groove 3.1 and is equipped with rubber washer 9, and rubber washer 9
Outside and the inner sidewall in equipped hole 4.1 cooperate, two rubber washers 9 realize effective buffering, anticollision effect, protect well
It is not damaged limiting groove 3.1 has been protected.
In the present embodiment, retention bead 3.2 is equipped on the lateral wall of ceramic short sleeve 3, the inner sidewall of rotating ring 1, which is equipped with, to be held
Slot 1.1 is set, accommodation groove 1.1 and retention bead 3.2 surround the installation cavity to be formed for for the installation of the first sealing ring 7.This structure can
So that the stable limit of the first sealing ring 7 is in installation cavity, to guarantee the stability of the position seals performance.
The utility model preferred embodiment is described above, but is not to be construed as limiting the scope of the invention.
The utility model is not only limited to above embodiments, and specific structure is allowed to vary, all in the utility model demand for independence
Made various change is within the protection scope of the present utility model in protection scope.
Claims (5)
1. a kind of dynamic sealing device being able to bear strong corrosion, including moving ring assembly (100) and sleeve assembly (101), the rotating ring group
Part (100) is sleeved on sleeve assembly (101), and the sleeve assembly (101) is used for moving ring assembly (100) and rotary shaft
(102) fixed, the moving ring assembly (100) includes rotating ring (1) and rotating seat (2), and the rotating ring (1) is matched along axially slidable
In rotating seat (2), it is characterised in that:
The sleeve assembly (101) includes ceramic short sleeve (3) and stainless steel axle sleeve (4), the stainless steel axle sleeve (4) and pottery
Porcelain short sleeve (3) axially connects, and the ceramic short sleeve (3) is located at media end；The rotating ring (1) is sleeved on ceramic short axle
Cover the lateral wall of (3), the rotating seat (2) is sleeved on the outside of stainless steel axle sleeve (4), and the rotating seat (2) with not
Rust steel shaft set (4) connection；
Have the first sealing ring (7) between rotating ring (1) inner sidewall and ceramic short sleeve (3) lateral wall, the ceramics short sleeve
(3) inner sidewall is equipped with the second sealing ring (8) close to the side of media end, for sealing with rotary shaft (102).
2. a kind of dynamic sealing device being able to bear strong corrosion according to claim 1, it is characterised in that: the stainless steel axle sleeve
(4) it is equipped with equipped hole (4.1) close to ceramic short sleeve (3) one end, one end of the ceramics short sleeve (3) is axially inserted into equipped
In hole (4.1)；
The ceramics short sleeve (3) is located in equipped hole (4.1) to be arranged with stainless steel coil (5) on the outer wall of one end, it is described not
Steel ring (5) are become rusty equipped with location hole (5.1)；Transmission screw (6), and the transmission are radially equipped on the rotating seat (2)
The head of screw (6) passes through equipped hole (4.1) lateral wall and is inserted into the location hole (5.1) on stainless steel coil (5).
3. a kind of dynamic sealing device being able to bear strong corrosion according to claim 2, it is characterised in that: the ceramic short sleeve
(3) lateral wall is equipped with limiting groove (3.1)；The stainless steel coil (5) is equipped with open slot (5.2), the stainless steel coil
(5) suit cooperation is in limiting groove (3.1).
4. a kind of dynamic sealing device being able to bear strong corrosion according to claim 3, it is characterised in that: the limiting groove
(3.1) it is located at stainless steel coil (5) both ends in be equipped with rubber washer (9), and the outside of rubber washer (9) and equipped hole (4.1)
Inner sidewall cooperation.
5. a kind of dynamic sealing device being able to bear strong corrosion according to claim 1, it is characterised in that: the ceramics short sleeve
(3) lateral wall is equipped with retention bead (3.2), and the inner sidewall of the rotating ring (1) is equipped with accommodation groove (1.1), the accommodating
The installation cavity to be formed for for the first sealing ring (7) installation is surrounded in slot (1.1) and retention bead (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607159.XU CN209196127U (en) | 2018-09-29 | 2018-09-29 | A kind of dynamic sealing device being able to bear strong corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607159.XU CN209196127U (en) | 2018-09-29 | 2018-09-29 | A kind of dynamic sealing device being able to bear strong corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209196127U true CN209196127U (en) | 2019-08-02 |
Family
ID=67407249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821607159.XU Active CN209196127U (en) | 2018-09-29 | 2018-09-29 | A kind of dynamic sealing device being able to bear strong corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209196127U (en) |
-
2018
- 2018-09-29 CN CN201821607159.XU patent/CN209196127U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 65, Mingke Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province, 315191 Patentee after: Ningbo Tiangong Fluid Technology Co.,Ltd. Country or region after: China Address before: No. 18 High Voltage Road, Jiangshan Science and Technology Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province, 315191 Patentee before: NINGBO TIANGONG MACHINERY SEALING CO.,LTD. Country or region before: China |