CN213017713U - Single-end-face mechanical sealing structure - Google Patents
Single-end-face mechanical sealing structure Download PDFInfo
- Publication number
- CN213017713U CN213017713U CN202021789115.0U CN202021789115U CN213017713U CN 213017713 U CN213017713 U CN 213017713U CN 202021789115 U CN202021789115 U CN 202021789115U CN 213017713 U CN213017713 U CN 213017713U
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- ring
- sealing
- cavity
- mechanical seal
- rotating ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 67
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 13
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002826 coolant Substances 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a single-ended face mechanical seal structure belongs to mechanical seal technical field, include: sealing flange, rotating ring subassembly, quiet ring subassembly and sealing member, be provided with installation cavity, transition chamber and sealed cavity in the sealing flange, the installation cavity the sealing member and the sealing member communicates in proper order, quiet ring subassembly sets up in the installation cavity, the rotating ring subassembly with quiet ring subassembly is connected, the sealing member sets up in the sealed cavity, last inlet opening and the apopore of being provided with of sealing flange, the inlet opening with the apopore all with the transition chamber communicates. The utility model has the advantages that: the single-end-face mechanical seal can play a role in preventing cooling water from leaking.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, a single-ended mechanical seal structure is related to.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.
The conventional single-ended mechanical seal structure has a certain room for improvement because internal circulation cooling cannot be performed or cooling water is likely to leak during internal circulation cooling.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, a single-ended mechanical seal structure has been proposed.
The purpose of the utility model can be realized by the following technical proposal: a single ended mechanical seal comprising: sealing flange, rotating ring subassembly, quiet ring subassembly and sealing member, be provided with installation cavity, transition chamber and sealed cavity in the sealing flange, the installation cavity the sealing member and the sealing member communicates in proper order, quiet ring subassembly sets up in the installation cavity, the rotating ring subassembly with quiet ring subassembly is connected, the sealing member sets up in the sealed cavity, last inlet opening and the apopore of being provided with of sealing flange, the inlet opening with the apopore all with the transition chamber communicates.
Preferably, the sealing element is a framework oil seal, and the framework oil seal is fixed in the sealing element so as to prevent the cooling liquid from leaking from the sealing cavity.
Preferably, a spring is arranged in the transition cavity and is in abutting connection with the static ring assembly.
Preferably, the rotating ring assembly comprises a rotating ring and a rotating ring seat, the rotating ring seat is provided with a key groove, and the rotating ring is sleeved on the rotating ring seat and connected with the stationary ring assembly.
Preferably, the stationary ring assembly includes a stationary ring and a stationary ring seat, the stationary ring seat is fixed in the installation cavity, the stationary ring is disposed in the stationary ring seat, and the stationary ring is connected to the movable ring.
Preferably, the transmission shaft further comprises a locking nut, and the locking nut is arranged on the transmission shaft and is in abutting connection with the movable ring seat.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the single-end-face mechanical seal can play a role in preventing cooling water from leaking.
2. The transition chamber can be used for installing a spring besides enabling cooling water or cooling liquid to enter the installation chamber, the spring is sleeved on the transmission shaft, and the spring pushes the static ring assembly, so that the static ring assembly can be connected with the movable ring assembly, and sufficient spring compensation force is provided.
3. The transmission shaft is provided with a shaft key, and the movable ring seat is provided with a key groove, so the movable ring seat can be connected with the transmission shaft through the key groove, in an actual structure, the inner ring surface of the movable ring is provided with a groove, the outer ring surface of the movable ring seat is provided with a convex block, and the convex block is connected in the groove, so that the movable ring is connected with the movable ring seat together.
Drawings
Fig. 1 is a schematic view of the single-end mechanical seal structure of the present invention.
Fig. 2 is a schematic structural view of the sealing flange of the present invention.
In the figure, 100, sealing flange; 110. a mounting cavity; 120. a transition chamber; 130. sealing the cavity; 140. a water inlet hole; 150. a water outlet hole; 200. a rotating ring assembly; 210. a moving ring; 220. a movable ring seat; 221. a keyway; 300. a stationary ring assembly; 310. a stationary ring; 320. a stationary ring seat; 400. a seal member; 500. a spring; 600. and locking the nut.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, a single-ended mechanical seal structure includes: a sealing flange 100, a moving ring assembly 200, a stationary ring assembly 300, and a seal 400, the mechanical seal being used on a drive shaft, which is capable of sealing one end of the sealing flange 100.
A mounting cavity 110, a transition cavity 120 and a sealing cavity 130 are arranged in the sealing flange 100, and the mounting cavity 110, the sealing element 400 and the sealing element 400 are communicated in sequence; preferably, the sealing flange 100 has a through hole structure, and the through hole structure can be divided into a mounting cavity 110, a transition cavity 120 and a sealing cavity 130, where it is emphasized that the mounting cavity 110 and the sealing cavity 130 are respectively located on two end faces of the sealing flange 100, the transition cavity 120 is located between the mounting cavity 110 and the sealing cavity 130, and the mounting cavity 110 and the sealing cavity 130 are communicated through the transition cavity 120.
In a practical structure, the sealing flange 100 is sleeved on the transmission shaft, and the mounting cavity 110, the transition cavity 120 and the sealing cavity 130 are located between the sealing flange 100 and the transmission shaft, and the adjacent cavities are communicated with each other.
The quiet ring subassembly 300 sets up in the installation cavity 110, the rotating ring subassembly 200 with the quiet ring subassembly 300 is connected, sealing member 400 sets up in the seal chamber 130, and preferably, quiet ring subassembly 300 and rotating ring subassembly 200 all overlap and establish on the transmission shaft, and quiet ring subassembly 300 then sets up in installation cavity 110 for the seal structure that rotating ring subassembly 200 and quiet ring subassembly 300 formed is located the one end of sealing flange 100, and the other end of sealing flange 100 seals through sealing member 400.
The sealing flange 100 is provided with a water inlet hole 140 and a water outlet hole 150, and the water inlet hole 140 and the water outlet hole 150 are both communicated with the transition cavity 120.
Preferably, when the transmission shaft rotates, the moving ring assembly 200 and the stationary ring assembly 300 rub against each other, thereby generating heat and crystals, so that the mechanical seal needs to be cooled and impurities and crystals in the mechanical seal are washed away.
In actual operation, coolant or cooling water is pumped into the transition cavity 120 from the water inlet 140, and at this time, the coolant or cooling water can flow into the installation cavity 110, so as to cool the moving ring assembly 200 and the stationary ring assembly 300, flush crystals in the installation cavity 110, and then flow out from the water outlet holes 150, and since the installation cavity 110 is sealed with the stationary ring assembly 300 through the moving ring assembly 200, the coolant or cooling water cannot leak out from one side of the installation cavity 110.
In addition, since the sealing member 400 is provided in the sealing cavity 130, the sealing flange 100 is sealed, so that the cooling fluid or the cooling water cannot leak from the sealing cavity 130, that is, both ends of the sealing flange 100 can form a sealing structure, and the cooling fluid or the cooling water cannot leak from both ends of the sealing flange 100 on the basis of a structure having only a single-end mechanical seal.
As shown in fig. 1 and 2, in the above embodiment, the sealing member 400 is a frame oil seal, and the frame oil seal is fixed in the sealing member 400 to prevent the cooling fluid from leaking from the sealing chamber 130.
Preferably, the frame oil seal is an existing seal 400, which has a ring-like structure, and thus can be fitted into the seal cavity 130, thereby sealing the seal cavity 130 and preventing the cooling water from leaking out of the end of the sealing flange 100.
As shown in fig. 1, on the basis of the above embodiment, a spring 500 is disposed in the transition cavity 120, and the spring 500 is in interference connection with the stationary ring assembly 300.
Preferably, when the sealing flange 100 is assembled with the transmission shaft, the transition cavity 120 is actually an annular cavity structure, and the transition cavity 120 can be used for installing the spring 500 besides enabling cooling water or cooling liquid to enter the installation cavity 110, the spring 500 is sleeved on the transmission shaft, and the spring 500 pushes the static ring assembly 300, so that the static ring assembly 300 can be connected with the dynamic ring assembly 200, and sufficient compensation force of the spring 500 is provided.
As shown in fig. 1, based on the above embodiment, the rotating ring assembly 200 includes a rotating ring 210 and a rotating ring seat 220, the rotating ring seat 220 is provided with a key slot 221, and the rotating ring 210 is sleeved on the rotating ring seat 220 and connected to the stationary ring assembly 300.
Preferably, a shaft key is provided on the transmission shaft, and a key groove 221 is provided on the moving ring seat 220, so that the moving ring seat 220 can be connected with the transmission shaft through the key groove 221, and in a practical structure, a groove is provided on an inner ring surface of the moving ring 210, and a protrusion is provided on an outer ring surface of the moving ring seat 220, and the protrusion is connected in the groove, so that the moving ring 210 and the moving ring seat 220 are connected together.
As shown in fig. 1, based on the above embodiment, the stationary ring assembly 300 includes a stationary ring 310 and a stationary ring seat 320, the stationary ring seat 320 is fixed in the installation cavity 110, the stationary ring 310 is disposed in the stationary ring seat 320, and the stationary ring 310 is connected to the moving ring 210.
Preferably, the stationary ring seat 320 is fixed in the installation cavity 110, so that the stationary ring 310 and the sealing flange 100 are kept stationary.
As shown in fig. 1, on the basis of the above embodiment, the transmission device further includes a lock nut 600, and the lock nut 600 is configured to be disposed on the transmission shaft and be in interference connection with the moving ring seat 220.
Preferably, the lock nut 600 is sleeved on the transmission shaft and can be axially moved through threads, and the movable ring base 220 is locked by the lock nut 600 abutting against the end surface of the movable ring base 220, so that the movable ring assembly 200 can bear high torque rotation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A single ended mechanical seal, comprising: sealing flange, rotating ring subassembly, quiet ring subassembly and sealing member, be provided with installation cavity, transition chamber and sealed cavity in the sealing flange, the installation cavity the sealing member and the sealing member communicates in proper order, quiet ring subassembly sets up in the installation cavity, the rotating ring subassembly with quiet ring subassembly is connected, the sealing member sets up in the sealed cavity, last inlet opening and the apopore of being provided with of sealing flange, the inlet opening with the apopore all with the transition chamber communicates.
2. A single ended mechanical seal according to claim 1, wherein: the sealing element is a framework oil seal, and the framework oil seal is fixed in the sealing element so as to avoid the leakage of cooling liquid from the sealing cavity.
3. A single ended mechanical seal according to claim 1, wherein: the transition intracavity is provided with the spring, the spring with quiet ring unit is contradicted and is connected.
4. A single ended mechanical seal according to claim 3, wherein: the rotating ring assembly comprises a rotating ring and a rotating ring seat, a key groove is formed in the rotating ring seat, and the rotating ring is sleeved on the rotating ring seat and connected with the static ring assembly.
5. A single ended mechanical seal according to claim 4, wherein: the static ring assembly comprises a static ring and a static ring seat, the static ring seat is fixed in the installation cavity, the static ring is arranged in the static ring seat, and the static ring is connected with the dynamic ring.
6. A single ended mechanical seal according to claim 4, wherein: the transmission shaft is used for being connected with the movable ring seat in an abutting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789115.0U CN213017713U (en) | 2020-08-24 | 2020-08-24 | Single-end-face mechanical sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789115.0U CN213017713U (en) | 2020-08-24 | 2020-08-24 | Single-end-face mechanical sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213017713U true CN213017713U (en) | 2021-04-20 |
Family
ID=75471855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021789115.0U Active CN213017713U (en) | 2020-08-24 | 2020-08-24 | Single-end-face mechanical sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213017713U (en) |
-
2020
- 2020-08-24 CN CN202021789115.0U patent/CN213017713U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Chuangwei Machinery Co.,Ltd. Assignor: NINGBO DONGLIAN MECHANICAL SEAL Co.,Ltd. Contract record no.: X2023980053451 Denomination of utility model: A Single End Face Mechanical Seal Structure Granted publication date: 20210420 License type: Common License Record date: 20231221 |