CN221462953U - High-stability mechanical sealing element - Google Patents
High-stability mechanical sealing element Download PDFInfo
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- CN221462953U CN221462953U CN202420120324.8U CN202420120324U CN221462953U CN 221462953 U CN221462953 U CN 221462953U CN 202420120324 U CN202420120324 U CN 202420120324U CN 221462953 U CN221462953 U CN 221462953U
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- ring
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- seat
- main body
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- 238000007789 sealing Methods 0.000 title claims abstract description 57
- 230000003068 static effect Effects 0.000 claims description 88
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
A high stability mechanical seal includes a stationary ring assembly, a moving ring assembly. The stationary ring assembly comprises a stationary ring seat, a stationary contact ring, a spring and a first stationary ring sealing ring. The stationary ring seat comprises a stationary ring seat main body and an oil hole. The stationary contact ring includes a stationary contact ring seat and a stationary contact ring body. The movable ring assembly comprises a movable ring seat, a movable contact ring, a first movable ring sealing ring and a second movable ring sealing ring. The movable ring seat comprises a movable ring seat main body, a movable contact ring mounting groove and a second sealing ring mounting groove. The movable contact ring comprises a movable contact ring main body and a third sealing ring mounting groove. When the stationary ring assembly and the movable ring assembly are assembled together, the movable ring seat is accommodated in the stationary ring seat, and the oil holes correspond to gaps between the stationary contact ring main body and the movable contact ring main body. The high-stability mechanical sealing element is reasonable in structure, convenient to install, stable in transmission, free of interference and capable of improving the heat dissipation effect.
Description
Technical Field
The utility model belongs to the technical field of mechanical sealing, and particularly relates to a high-stability mechanical sealing element.
Background
The mechanical sealing element belongs to one of the mechanical basic elements with precise and complex structure, and is a key component of various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Basic concept of mechanical seal: the mechanical seal means a device for preventing fluid leakage, which is formed by at least one pair of end surfaces perpendicular to the rotation axis, which are kept in contact and relatively slide under the action of fluid pressure and the elasticity (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal.
For example, the Chinese patent mechanical seal has the application number of CN201810230518.2, and comprises a stationary ring assembly and a movable ring assembly which are matched with each other, wherein the stationary ring assembly comprises a stationary ring seat and a stationary ring; the movable ring assembly comprises a movable ring seat, a movable ring, a rubber bellows, a transmission clamping piece, a tight ring, a spring and a transmission sleeve which are coaxially arranged, wherein the first stationary ring and the second stationary ring have a trend of being far away from each other under the action of a pressure spring, after the assembly is completed, the pressure spring is always compressed, so that the pressure spring always applies acting force to the first stationary ring and the second stationary ring so that the first stationary ring is always abutted against the first movable ring, the second stationary ring is always abutted against the second movable ring, the movable ring end face and the stationary ring end face keep an attaching state, but in the process of rotating shaft transmission, the movable ring end face and the stationary ring end face are exposed to the outside only, and the movable ring end face and the stationary ring end face are easily interfered to influence the stability of mechanical sealing.
Disclosure of utility model
In view of this, the present utility model provides a high stability mechanical seal to meet industry needs.
A high stability mechanical seal includes a stationary ring assembly and a moving ring assembly disposed at one end of the stationary ring assembly. The static ring assembly comprises a static ring seat, a static contact ring inserted in the static ring seat, at least two springs arranged between the static ring seat and the static contact ring, and a first static ring sealing ring arranged between the static ring seat and the static contact ring. The static ring seat comprises a static ring seat main body, two oil holes penetrating through the side wall of the static ring seat main body, and the static contact ring comprises a static contact ring seat and a static contact ring main body arranged at one end of the static contact ring seat. The static contact ring main body protrudes out of one end of the static contact ring seat. The contact surface of the static ring seat and the static contact ring is in a step shape. The static ring seat is in clearance fit with the static contact ring. The first static ring sealing ring and the spring are arranged in a gap between the static ring seat and the static contact ring. The movable ring assembly comprises a movable ring seat, a movable contact ring arranged on the movable ring seat, a first movable ring sealing ring arranged on the movable ring seat and a second movable ring sealing ring arranged on the movable contact ring. The movable ring seat comprises a movable ring seat main body, a movable contact ring mounting groove arranged at one end of the movable ring seat main body, and a second sealing ring mounting groove arranged in the movable contact ring mounting groove. The movable contact ring comprises a movable contact ring main body and a third sealing ring mounting groove arranged on the inner side wall of the movable contact ring main body. The outer diameter of the movable ring seat is equal to the inner diameter of the static ring seat. The first movable ring sealing ring is accommodated in the second sealing ring installation groove, and the second movable ring sealing ring is accommodated in the third sealing ring installation groove. When the stationary ring assembly and the movable ring assembly are assembled together, the movable ring seat is accommodated in the stationary ring seat, the stationary contact ring main body and the movable contact ring main body are mutually abutted, and the oil hole corresponds to a gap between the stationary contact ring main body and the movable contact ring main body.
Further, the stationary ring assembly further comprises a second stationary ring sealing ring arranged at the end of the stationary ring seat opposite to one end of the movable ring assembly.
Further, the stationary ring seat further comprises a first sealing ring mounting groove which is arranged on the end head of the stationary ring seat main body, which is opposite to one end of the movable ring assembly.
Further, when the stationary ring seat is fixedly arranged on the mounting piece, a gap between the first sealing ring mounting groove and the mounting piece is at least 2.8mm.
Further, on the section along the central axis of the static contact ring, the outer contour of the static contact ring is L-shaped.
Further, the third sealing ring mounting groove is arranged in the center of the inner side wall of the movable ring seat main body.
Further, the movable ring seat further comprises at least one limiting pin arranged in the movable contact ring mounting groove.
Further, the movable contact ring further comprises at least one inserting groove arranged on the movable contact ring main body, and the limiting pin and the inserting groove are arranged in the limiting pin.
Compared with the prior art, the high-stability mechanical sealing element provided by the utility model is inserted into the static ring seat of the static ring assembly through the dynamic ring assembly, so that the dynamic ring assembly and the static ring assembly can move stably. The static ring seat in the static ring assembly is internally provided with a static contact ring, a spring and a first static ring sealing ring are arranged between the static ring seat and the static contact ring, the static ring seat is arranged on the side wall of the static ring seat main body in a penetrating way, the moving ring assembly is provided with a moving contact ring at one end of the static contact ring seat, the moving ring seat is provided with a first moving ring sealing ring, the moving contact ring is provided with a second moving ring sealing ring, the outer diameter of the moving ring seat is equal to the inner diameter of the static ring seat, and the outer diameter of the moving ring seat is inserted in the static ring seat so as to facilitate the moving ring seat to be in stable position in the static ring assembly. In addition, when the stationary ring assembly and the moving ring assembly are assembled together, the moving ring seat is accommodated in the stationary ring seat, the stationary contact ring main body and the moving contact ring main body are mutually abutted, the oil hole corresponds to a gap between the stationary contact ring main body and the moving contact ring main body, and the oil hole is used for transmitting heat dissipation oil to the space between the stationary contact ring and the moving ring assembly so as to realize heat dissipation between the stationary ring assembly and the moving ring assembly. Therefore, the high-stability mechanical sealing element is reasonable in structure, convenient to install, stable in transmission, free of interference and capable of improving the heat dissipation effect.
Drawings
Fig. 1 is a schematic cross-sectional view of a high stability mechanical seal provided by the present utility model.
Detailed Description
Specific embodiments of the present utility model are described in further detail below. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.
As shown in fig. 1, the cross-sectional structure of the high-stability mechanical seal provided by the utility model is schematically shown. The high stability mechanical seal comprises a stationary ring assembly 10 and a moving ring assembly 20 disposed at one end of the stationary ring assembly 10. The high stability mechanical seal also includes other functional modules, such as assembly components, etc., which should be known to those skilled in the art and will not be described in detail herein.
The stationary ring assembly 10 comprises a stationary ring seat 11, a stationary contact ring 12 arranged on the stationary ring seat 11, at least two springs 13 arranged between the stationary ring seat 11 and the stationary contact ring 12, a first stationary ring seal ring 14 arranged between the stationary ring seat 11 and the stationary contact ring 12, and a second stationary ring seal ring 15 arranged at the end of the stationary ring seat 11 opposite to one end of the movable ring assembly 20.
The stationary ring seat 11 includes a stationary ring seat main body 111, two oil holes 112 penetrating through the side wall of the stationary ring seat main body 111, and a first seal ring mounting groove 113 disposed on the end of the stationary ring seat main body 111 opposite to one end of the movable ring assembly 20. The stationary ring seat main body 111 has a tubular structure, the oil hole 112 is used for transmitting heat dissipation oil between the stationary contact ring 12 and the moving ring assembly 20 described below, so as to improve heat dissipation effect, and the oil hole 112 will be described in detail with reference to the moving ring assembly 20. The first seal ring mounting groove 113 is used for mounting the first static ring seal ring 14, so that the first static ring seal ring 14 is stable in the position of the static ring seat 11.
The stationary contact ring 12 includes a stationary contact ring seat 121, and a stationary contact ring body 122 disposed at one end of the stationary contact ring seat 121. The static contact ring seat 121 is mounted with the static ring seat 11, and the static contact ring main body 122 protrudes from one end of the static contact ring seat 121, so that the static contact ring main body 122 contacts with the moving ring assembly 20, and on a section along a central axis of the static contact ring 12, an outer contour of the static contact ring 12 is in an L shape. The contact surface of the static ring seat 11 and the static contact ring 12 is in a step shape, the static ring seat 11 is in clearance fit with the static contact ring 12, and the first static ring sealing ring 14 and the spring 13 are arranged in the clearance between the static ring seat 11 and the static contact ring 12.
The spring 13 is disposed between the stationary ring seat 11 and the stationary contact ring 12, the stationary contact ring 12 is abutted to the moving ring assembly 20 by the elastic force of the spring 13, and the spring 13 is a prior art and will not be described herein.
The first static ring sealing ring 14 is disposed in the gap between the static ring seat 11 and the static contact ring 12, so as to seal one end of the gap between the static ring seat 11 and the static contact ring 12. When the oil hole 112 is used for transmitting the heat dissipation oil between the stationary contact ring 12 and the moving ring assembly 20, the heat dissipation oil can also flow into the gap between the stationary ring seat 11 and the stationary contact ring 12, so that the heat dissipation oil takes away the temperatures of the stationary ring seat 11 and the stationary contact ring 12. The first static ring sealing ring 14 blocks the heat dissipation oil from flowing out of the gap between the static ring seat 11 and the static contact ring 12. The first stationary ring seal 14 is a prior art and will not be described in detail herein.
The second stationary ring sealing ring 15 is disposed at one end of the stationary ring seat 11, so as to promote sealing between the stationary ring seat 11 and the mounting member, and when the stationary ring seat 11 is fixedly disposed on the mounting member, a gap between the first sealing ring mounting groove 113 and the mounting member is at least 2.8mm, so as to be suitable for sealing rings of different specifications.
The moving ring assembly 20 includes a moving ring seat 21, a moving contact ring 22 disposed at one end of the stationary contact ring seat 21, a first moving ring seal 23 disposed on the moving ring seat 21, and a second moving ring seal 24 disposed on the moving contact ring 22.
The movable ring seat 21 includes a movable ring seat main body 211, a movable contact ring mounting groove 212 provided at one end of the movable ring seat main body 211, and a second seal ring mounting groove 213 provided in the movable contact ring mounting groove 212, at least one stopper pin 214 provided in the movable contact ring mounting groove 212. The outer diameter of the movable ring seat 21 is equal to the inner diameter of the stationary ring seat 11, so that the movable ring seat 21 is stable in position in the stationary ring assembly 10.
The movable contact ring 22 includes a movable contact ring body 221, a third seal ring mounting groove 222 disposed on an inner sidewall of the movable contact ring body 221, and at least one insertion groove 223 disposed on the movable contact ring body 221. The movable contact ring main body 22 is mounted in the movable contact ring mounting groove 212, so that the movable contact ring 22 is fixed in the movable ring seat 21. The limiting pin 214 is inserted into the insertion groove 223, so that the position of the movable contact ring 22 on the movable ring seat 21 is stable.
The first moving ring seal 23 is accommodated in the second seal ring mounting groove 213, and the second moving ring seal 24 is accommodated in the third seal ring mounting groove 222. The first movable ring seal 23 and the second movable ring seal 24 improve the tightness of the movable contact ring 22 on the movable ring seat 21.
The third seal ring mounting groove 222 is disposed at the center of the inner sidewall of the movable ring seat main body 211, so that the second movable ring seal 24 is also disposed at the center of the inner sidewall of the movable ring seat main body 211, so as to ensure that the position of the second movable ring seal 24 on the movable ring seat main body 211 is stable.
When the stationary ring assembly 10 and the moving ring assembly 20 are assembled together, the moving ring seat 21 is accommodated in the stationary ring seat 11, the stationary contact ring body 121 and the moving contact ring body 221 are abutted against each other, the oil holes 112 correspond to gaps between the stationary contact ring body 121 and the moving contact ring body 221, and the oil holes 112 are used for transmitting heat dissipation oil between the stationary contact ring 12 and the moving ring assembly 20, so as to realize heat dissipation between the stationary ring assembly 10 and the moving ring assembly 20.
Compared with the prior art, the high-stability mechanical seal provided by the utility model is inserted into the stationary ring seat 11 of the stationary ring assembly 10 through the movable ring assembly 20, so that the movable between the movable ring assembly 20 and the stationary ring assembly 10 is stable. The static ring seat 11 in the static ring assembly 10 is internally provided with a static contact ring 12, a spring 13 and a first static ring sealing ring 14 are arranged between the static ring seat 11 and the static contact ring 12, the static ring seat 11 is provided with an oil hole 112 in a penetrating manner on the side wall of the static ring seat main body 111, the movable ring assembly 20 is provided with a movable contact ring 22 at one end of the static contact ring seat 21, the movable ring seat 21 is provided with a first movable ring sealing ring 23, the movable contact ring 22 is provided with a second movable ring sealing ring 24, the outer diameter of the movable ring seat 21 is equal to the inner diameter of the static ring seat 11, and the outer diameter of the movable ring seat 21 is inserted in the static ring seat 11 so that the movable ring seat 21 is positioned in the static ring assembly 10 stably. In addition, when the stationary ring assembly 10 and the moving ring assembly 20 are assembled together, the moving ring seat 21 is accommodated in the stationary ring seat 11, the stationary contact ring body 121 and the moving contact ring body 221 are abutted against each other, the oil hole 112 corresponds to a gap between the stationary contact ring body 121 and the moving contact ring body 221, and the oil hole 112 is used for transmitting heat dissipation oil between the stationary contact ring 12 and the moving ring assembly 20 to achieve heat dissipation between the stationary ring assembly 10 and the moving ring assembly 20. Therefore, the high-stability mechanical sealing element is reasonable in structure, convenient to install, stable in transmission, free of interference and capable of improving the heat dissipation effect.
The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.
Claims (8)
1. A high stability mechanical seal, characterized by: the high-stability mechanical sealing element comprises a stationary ring assembly, a movable ring assembly arranged at one end of the stationary ring assembly, the stationary ring assembly comprises a stationary ring seat, a stationary contact ring inserted into the stationary ring seat, at least two springs arranged between the stationary ring seat and the stationary contact ring, and a first stationary ring sealing ring arranged between the stationary ring seat and the stationary contact ring, the stationary ring seat comprises a stationary ring seat main body, two oil holes penetrating through the side wall of the stationary ring seat main body, the stationary contact ring comprises a stationary contact ring seat and a stationary contact ring main body arranged at one end of the stationary contact ring seat, the stationary contact ring main body protrudes out of one end of the stationary contact ring seat, the contact surface of the stationary ring seat and the stationary contact ring is in a step shape, the stationary ring seat and the stationary contact ring are in clearance fit, the first stationary ring sealing ring and the spring are arranged in a gap between the stationary ring seat and the stationary contact ring, the movable ring assembly comprises a movable ring seat, a movable contact ring arranged on the movable ring seat, a first movable ring sealing ring arranged on the movable ring seat, and a second movable ring sealing ring arranged on the movable contact ring, the movable ring seat comprises a movable ring seat main body, a movable contact ring mounting groove arranged at one end of the movable ring seat main body, and a second sealing ring mounting groove arranged in the movable contact ring mounting groove, the movable contact ring comprises a movable contact ring main body, a third sealing ring mounting groove arranged on the inner side wall of the movable contact ring main body, the outer diameter of the movable ring seat is equal to the inner diameter of the stationary ring seat, the first movable ring sealing ring is accommodated in the second sealing ring mounting groove, the second movable ring sealing ring is accommodated in the third sealing ring mounting groove, when the static ring assembly and the movable ring assembly are assembled together, the movable ring seat is accommodated in the static ring seat, the static contact ring main body and the movable contact ring main body are mutually abutted, and the oil hole corresponds to a gap between the static contact ring main body and the movable contact ring main body.
2. The high stability mechanical seal of claim 1, wherein: the stationary ring assembly further comprises a second stationary ring sealing ring which is arranged at the end head of the stationary ring seat, which is opposite to one end of the movable ring assembly.
3. The high stability mechanical seal of claim 1, wherein: the static ring seat further comprises a first sealing ring mounting groove which is arranged on the end head of the static ring seat main body, which is opposite to one end of the movable ring component.
4. A high stability mechanical seal as defined in claim 3, wherein: when the stationary ring seat is fixedly arranged on the mounting piece, the gap between the first sealing ring mounting groove and the mounting piece is at least 2.8mm.
5. The high stability mechanical seal of claim 1, wherein: on the section along the central axis of the static contact ring, the outer contour of the static contact ring is L-shaped.
6. The high stability mechanical seal of claim 1, wherein: the third sealing ring mounting groove is formed in the center of the inner side wall of the movable ring seat main body.
7. The high stability mechanical seal of claim 1, wherein: the movable ring seat also comprises at least one limiting pin arranged in the movable contact ring mounting groove.
8. The high stability mechanical seal of claim 7, wherein: the movable contact ring further comprises at least one inserting groove arranged on the movable contact ring main body, and the limiting pin and the inserting groove are arranged in the inserting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420120324.8U CN221462953U (en) | 2024-01-17 | 2024-01-17 | High-stability mechanical sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420120324.8U CN221462953U (en) | 2024-01-17 | 2024-01-17 | High-stability mechanical sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221462953U true CN221462953U (en) | 2024-08-02 |
Family
ID=92351609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420120324.8U Active CN221462953U (en) | 2024-01-17 | 2024-01-17 | High-stability mechanical sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221462953U (en) |
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2024
- 2024-01-17 CN CN202420120324.8U patent/CN221462953U/en active Active
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