CN216112167U - Axial buffering type mechanical seal structure - Google Patents
Axial buffering type mechanical seal structure Download PDFInfo
- Publication number
- CN216112167U CN216112167U CN202121969322.9U CN202121969322U CN216112167U CN 216112167 U CN216112167 U CN 216112167U CN 202121969322 U CN202121969322 U CN 202121969322U CN 216112167 U CN216112167 U CN 216112167U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- spring
- static
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model discloses an axial buffer type mechanical seal structure which is characterized by comprising a static ring component, a movable ring (7) connected with the static ring component and a buffer component connected with the movable ring (7); the buffer assembly comprises a spring sleeve (2) provided with a spring installation cavity, and a compression spring (4) which is installed in the spring installation cavity, one end of the compression spring is connected with the bottom of the spring installation cavity, and the other end of the compression spring is connected with a push ring (5). The utility model is provided with a spring sleeve, a compression spring is arranged on the spring sleeve, the compression spring is connected with a push ring, the push ring tightly supports against the moving ring, and after a sealing surface between the moving ring and the static ring is abraded, the compression spring pushes the moving ring through the push ring, so that the sealing surface between the moving ring and the static ring is kept to be tightly attached. Meanwhile, when the rotating shaft moves, the sealing surface between the movable ring and the static ring can be kept attached tightly under the action of the compression spring, and the sealing effect of the utility model is improved.
Description
Technical Field
The utility model relates to the field of mechanical sealing, in particular to an axial buffer type mechanical sealing structure.
Background
The mechanical seal is a device for solving the problem of sealing between a rotating shaft and a machine body, and is formed by at least one pair of end faces perpendicular to the rotating shaft, which are kept to be attached and relatively slide under the action of fluid pressure and the elastic force of a compensation mechanism and under the cooperation of auxiliary sealing, so that the device for preventing fluid leakage is formed. However, most of machine seals at present have poor axial buffering effect, which easily results in poor sealing effect of the sealing surface, and further affects the sealing effect of the machine seal.
SUMMERY OF THE UTILITY MODEL
The present invention is to solve the above problems and to provide an axial buffer type mechanical seal structure.
The purpose of the utility model is realized by the following technical scheme: an axial buffer type mechanical sealing structure comprises a static ring component, a dynamic ring connected with the static ring component, and a buffer component connected with the dynamic ring; the buffer assembly comprises a spring sleeve provided with a spring installation cavity, and a compression spring which is installed in the spring installation cavity, wherein one end of the compression spring is connected with the bottom of the spring installation cavity, and the other end of the compression spring is connected with a push ring; the push ring is abutted with the movable ring; the static ring assembly comprises a static ring sleeve with a static ring installation cavity, a static ring installed in the static ring installation cavity, and a sealing gasket arranged between the static ring and the static ring sleeve; the sealing surface of the static ring is abutted with the sealing surface of the dynamic ring; the seal ring is provided with a seal ring retaining shoulder, the seal ring is provided with a seal edge, and the seal edge is tightly attached to the seal ring retaining shoulder.
An annular baffle, a first sealing ring and a second sealing ring are arranged outside the static ring sleeve; the first sealing ring and the second sealing ring are respectively positioned on two sides of the annular partition.
The sealing edge is provided with an annular bulge on the outer side.
And a static ring sleeve threaded hole is formed in the static ring sleeve.
And a moving ring sealing ring mounting cavity is arranged on the inner wall of the moving ring, and a moving ring sealing ring is arranged in the moving ring sealing ring mounting cavity.
And a spring sleeve threaded hole is formed in the spring sleeve.
The four spring installation cavities are evenly arranged on the spring sleeve in the circumferential direction, and a compression spring is arranged in each spring installation cavity.
And the sealing surface of the movable ring extends into the static ring mounting cavity.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
(1) the utility model is provided with a spring sleeve, a compression spring is arranged on the spring sleeve, the compression spring is connected with a push ring, the push ring tightly supports against the moving ring, and after a sealing surface between the moving ring and the static ring is abraded, the compression spring pushes the moving ring through the push ring, so that the sealing surface between the moving ring and the static ring is kept to be tightly attached. Meanwhile, when the rotating shaft moves, the sealing surface between the movable ring and the static ring can be kept attached tightly under the action of the compression spring, and the sealing effect of the utility model is improved.
(2) The static ring is provided with the static ring retaining shoulder, the sealing edge is arranged on the sealing gasket, and the sealing performance between the static ring and the static ring sleeve is improved through the matching of the sealing edge and the static ring retaining shoulder.
(3) The annular barrier, the first sealing ring and the second sealing ring are arranged on the outer side of the static ring sleeve, so that the sealing performance between the static ring sleeve and equipment can be improved.
Drawings
Figure 1 is a cross-sectional view of the present invention in use.
Fig. 2 is a sectional view of the stationary ring and the stationary ring of the present invention.
FIG. 3 is a cross-sectional view of the gasket and stationary ring combination of the present invention.
Fig. 4 is a cross-sectional view of a stationary ring of the present invention.
Fig. 5 is a cross-sectional view of the gasket of the present invention.
The reference numbers in the above figures refer to: the sealing device comprises a rotating shaft, a spring sleeve threaded hole, a pressing spring, a pushing ring, a movable ring sealing ring, a movable ring, a static ring sleeve threaded hole, a first sealing ring, a second sealing ring, an annular protrusion, a sealing gasket, a first sealing ring, a second sealing ring, a sealing gasket, a static ring, a movable ring sealing ring installation cavity, an annular partition, a static ring installation cavity, a static ring retaining shoulder and a sealing edge, wherein the rotating shaft is 1-rotating shaft, the spring sleeve is 2-spring sleeve, the spring sleeve threaded hole is 3-spring sleeve threaded hole, the pressing spring is 4-pushing ring, the movable ring sealing ring is 6-rotating ring sealing ring, the movable ring is 7-rotating ring, the static ring sleeve is 8-static ring sleeve, the static ring sleeve threaded hole is 9-static ring sleeve threaded hole, the first sealing ring is 10-first sealing ring, the second sealing ring is 11-annular protrusion, the sealing gasket is 13-sealing gasket, the static ring is 14-static ring, the static ring sealing ring is 15-static ring sealing ring installation cavity, the annular partition is 16-annular partition, and 17-static ring retaining shoulder and the sealing edge.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1, the axial buffer type mechanical seal structure of the present invention includes a stationary ring assembly, a movable ring 7 connected to the stationary ring assembly, and a buffer assembly connected to the movable ring 7.
The buffer component can push the movable ring 7, so that the movable ring 7 is tightly attached to the static ring component. Specifically, the buffering assembly comprises a spring sleeve 2 and a push ring 5. The spring sleeve 2 is provided with a spring installation cavity, one end of the compression spring 4 is connected with the bottom of the spring installation cavity, the other end of the compression spring is connected with the push ring 5, and the push ring 5 is abutted against the movable ring 7. The compression spring 4 is in a compressed state, and the compression spring pushes the movable ring 7 through the push ring 5, so that the movable ring 7 is tightly attached to the static ring component.
In this embodiment, the number of the spring installation cavities is four, the four spring installation cavities are circumferentially and uniformly arranged on the spring sleeve 2, and a compression spring 4 is arranged in each spring installation cavity to provide sufficient thrust. The spring sleeve 2 is provided with a spring sleeve threaded hole 3, and the spring sleeve 2 is installed on equipment through the spring sleeve threaded hole 3.
And a moving ring sealing ring mounting cavity 15 is arranged on the inner wall of the moving ring 7, and a moving ring sealing ring 6 is arranged in the moving ring sealing ring mounting cavity 15. The sealing performance between the movable ring 7 and the rotating shaft can be improved by arranging the movable ring sealing ring 6.
As shown in fig. 2, the stationary ring assembly includes a stationary ring sleeve 8, a stationary ring installation cavity 17 is provided on the stationary ring sleeve 8, a stationary ring 14 is installed in the stationary ring installation cavity 17, and a sealing surface of the stationary ring 14 abuts against a sealing surface of the movable ring 7, thereby preventing fluid leakage. Similarly, a static ring sleeve threaded hole 9 is formed in the static ring sleeve 8, and the static ring sleeve 8 is installed on the equipment through the static ring sleeve threaded hole 9. The sealing surface of the movable ring 7 extends into the static ring installation cavity 17.
In order to improve the sealing performance between the stationary ring 8 and the stationary ring 14, as shown in fig. 2, a sealing gasket 13 is provided between the stationary ring 14 and the stationary ring 8. As shown in fig. 3 to 5, a stationary ring retaining shoulder 18 is disposed on the stationary ring 14, a sealing edge 19 is disposed on the sealing gasket 13, the sealing gasket 13 is sleeved on the stationary ring 14, and the sealing edge 19 is attached to the stationary ring retaining shoulder 18.
As shown in fig. 5, the sealing rim 19 is provided with an annular protrusion 12 on the outer side, and the annular protrusion 12 can further improve the sealing performance between the stationary ring 14 and the stationary sleeve 8.
As shown in fig. 2, an annular barrier 16, a first seal ring 10 and a second seal ring 11 are arranged outside the static ring sleeve 8; the first sealing ring 10 and the second sealing ring 11 are respectively positioned at two sides of the annular baffle 16. The annular barrier 16, the first sealing ring 10 and the second sealing ring 11 can better seal the stationary sleeve 8 and the equipment.
When in use, the spring sleeve 2 is arranged on the rotating shaft 1, and then the compression spring 4 and the push ring 5 are arranged; the rotating ring 7 is mounted on the rotating shaft 1 and can rotate along with the rotating shaft 1, and the static ring assembly is also mounted on the rotating shaft 1. After long-term use, if the sealing surface between the static ring 14 and the dynamic ring 7 is worn, the dynamic ring 7 is still attached to the static ring 14 by the thrust of the compression spring 4. When the rotating shaft 1 moves, the compression spring 4 can enable the movable ring 7 to still cling to the static ring 14, and the sealing performance of the utility model is ensured.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are included in the scope of the claims of the present invention, as long as they do not depart from the idea of the present invention, and they should be regarded as what the present invention protects.
As described above, the present invention can be preferably realized.
Claims (8)
1. An axial buffer type mechanical seal structure is characterized by comprising a static ring component, a dynamic ring (7) connected with the static ring component, and a buffer component connected with the dynamic ring (7); the buffer assembly comprises a spring sleeve (2) provided with a spring mounting cavity, and a compression spring (4) which is arranged in the spring mounting cavity, one end of the compression spring is connected with the bottom of the spring mounting cavity, and the other end of the compression spring is connected with a push ring (5); the push ring (5) is abutted with the movable ring (7); the static ring component comprises a static ring sleeve (8) with a static ring installation cavity (17), a static ring (14) installed in the static ring installation cavity (17), and a sealing gasket (13) arranged between the static ring (14) and the static ring sleeve (8); the sealing surface of the static ring (14) is abutted with the sealing surface of the dynamic ring (7); the static ring is characterized in that a static ring retaining shoulder (18) is arranged on the static ring (14), a sealing edge (19) is arranged on the sealing gasket (13), and the sealing edge (19) is attached to the static ring retaining shoulder (18).
2. The axial cushioning type mechanical seal structure of claim 1, characterized in that an annular baffle (16), a first seal ring (10) and a second seal ring (11) are arranged outside the static ring sleeve (8); the first sealing ring (10) and the second sealing ring (11) are respectively positioned on two sides of the annular partition (16).
3. An axially cushioned mechanical seal according to claim 2, wherein said sealing rim (19) is provided on the outside with an annular projection (12).
4. An axially cushioned mechanical seal according to claim 3, wherein said ring sleeve (8) is provided with a threaded ring sleeve hole (9).
5. The axial buffering type mechanical sealing structure of claim 4, wherein a moving ring sealing ring installation cavity (15) is arranged on the inner wall of the moving ring (7), and a moving ring sealing ring (6) is arranged in the moving ring sealing ring installation cavity (15).
6. An axial buffering type mechanical sealing structure according to claim 5, characterized in that the spring housing (2) is provided with a spring housing threaded hole (3).
7. The axial buffering type mechanical sealing structure of claim 6, wherein the number of the spring installation cavities is four, the four spring installation cavities are circumferentially and uniformly arranged on the spring sleeve (2), and a compression spring (4) is arranged in each spring installation cavity.
8. The axial cushioning type mechanical seal structure of claim 7, characterized in that the seal surface of the rotating ring (7) extends into the stationary ring installation cavity (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121969322.9U CN216112167U (en) | 2021-08-20 | 2021-08-20 | Axial buffering type mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121969322.9U CN216112167U (en) | 2021-08-20 | 2021-08-20 | Axial buffering type mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216112167U true CN216112167U (en) | 2022-03-22 |
Family
ID=80727530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121969322.9U Active CN216112167U (en) | 2021-08-20 | 2021-08-20 | Axial buffering type mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216112167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145972A (en) * | 2023-11-01 | 2023-12-01 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
-
2021
- 2021-08-20 CN CN202121969322.9U patent/CN216112167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145972A (en) * | 2023-11-01 | 2023-12-01 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
| CN117145972B (en) * | 2023-11-01 | 2024-01-02 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216112167U (en) | Axial buffering type mechanical seal structure | |
| CN111577649A (en) | Magnetic fluid sealing device for slurry pump | |
| CN207406689U (en) | A kind of oil buffer applied under air pressure environment | |
| CN104132143A (en) | Silicon carbide mechanical seal device | |
| CN113983170A (en) | Extension spring type mechanical seal | |
| CN212859297U (en) | Framework oil seal installation sleeve for motor assembly | |
| CN107575525B (en) | Hydraulic buffer applied in pneumatic environment | |
| CN210178930U (en) | Gas spring mechanical seal | |
| CN212004264U (en) | Multi-spring single-end-face mechanical sealing structure | |
| CN210566257U (en) | Novel shaft seal | |
| CN215763293U (en) | Floating mechanical sealing device | |
| CN205047844U (en) | Mechanical seal | |
| CN216112168U (en) | Mechanical sealing structure with corrugated sealing pipe | |
| CN203963022U (en) | A kind of mechanical sealing device of silicon carbide | |
| CN213929446U (en) | Double-end-face air pressure closed mechanical seal | |
| CN216691582U (en) | Centrifugal pump machine seals structure | |
| CN216279380U (en) | Extension spring type mechanical seal | |
| CN213512074U (en) | Oil-gas bidirectional sealing structure | |
| CN209943519U (en) | Sealing structure for hub | |
| CN216975784U (en) | Vertical multi-stage pump mechanical seal adopting spring protection structure | |
| CN213598577U (en) | Sealing device and sealing structure | |
| CN214999398U (en) | More stable mechanical seal structure | |
| CN219932951U (en) | Rotary shaft sealing element | |
| CN210039972U (en) | Oil buffer and circuit breaker with same | |
| CN219035543U (en) | Sealing ring of mechanical seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |