CN204553832U - Double-face mechanical sealing structure - Google Patents
Double-face mechanical sealing structure Download PDFInfo
- Publication number
- CN204553832U CN204553832U CN201520078134.5U CN201520078134U CN204553832U CN 204553832 U CN204553832 U CN 204553832U CN 201520078134 U CN201520078134 U CN 201520078134U CN 204553832 U CN204553832 U CN 204553832U
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- Prior art keywords
- axle sleeve
- ring
- rotating ring
- rotating
- cooling cover
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- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
A kind of double-face mechanical sealing structure, comprise main shaft, on its outer peripheral surface, cover has the first axle sleeve and the second axle sleeve, the end face of the first axle sleeve and the second axle sleeve is connected by seal arrangement, the outer peripheral surface of the first axle sleeve and the second axle sleeve joint is provided with rotating seat, the two ends symmetry of rotating seat installs the first rotating ring and the second rotating ring, first rotating ring is connected by the second seal ring and the first axle sleeve, second rotating ring is connected by the 3rd seal ring and the second axle sleeve, mounting spring between the first rotating ring and the second rotating ring; The outer peripheral surface being positioned at the first axle sleeve outside the first rotating ring is also provided with the first stationary ring, and the excircle of the first stationary ring installs gland and the first cooling cover by the first seal ring; Be positioned on the second axle sleeve outside the second rotating ring and be also provided with the second stationary ring, its excircle installs the second cooling cover by the 4th seal ring, and itself and the first cooling cover end face are connected, and second cooling cover one end is connected with the second stationary ring by stop pin.Simple for production, cost is low.
Description
Technical field
The utility model relates to seal arrangement technical field, especially a kind of double-face mechanical sealing structure.
Background technique
In prior art, the special alloy of the double mechanical seal contact medium of pump, general phosphoric acid, sulfuric acid etc. just can solve with 316L and 904L metallic material, but run into hydrochloric acid, fluosilicic acid etc., when particularly medium temperature is more than 80 DEG C, will adopt Hastelloy and titanium alloy, make difficulty, cost is high.
Model utility content
The applicant is for the shortcoming in above-mentioned existing production technology, a kind of double-face mechanical sealing structure rational in infrastructure is provided, thus adopt two axle sleeves coordinated to connect at the excircle of main shaft, and adopt unlike material, effectively avoid the phenomenon that burn into cracking occurs when running into hydrochloric acid, fluosilicic acid, simple for production, cost is low.
The technological scheme that the utility model adopts is as follows:
A kind of double-face mechanical sealing structure, comprise main shaft, on the outer peripheral surface of described main shaft, cover has the first axle sleeve and the second axle sleeve, the end face of described first axle sleeve and the second axle sleeve is connected by seal arrangement, the outer peripheral surface of described first axle sleeve and the second axle sleeve joint is provided with rotating seat, the two ends symmetry of described rotating seat installs the first rotating ring and the second rotating ring, described first rotating ring is connected by the second seal ring and the first axle sleeve, described second rotating ring is connected by the 3rd seal ring and the second axle sleeve, mounting spring between described first rotating ring and the second rotating ring, the outer peripheral surface being positioned at the first axle sleeve outside the first rotating ring is also provided with the first stationary ring, and the excircle of described first stationary ring installs gland and the first cooling cover by the first seal ring, be positioned on the second axle sleeve outside the second rotating ring and the second stationary ring is also installed, the excircle of described second stationary ring installs the second cooling cover by the 4th seal ring, described second cooling cover and the first cooling cover end face are connected, and described second cooling cover one end is connected with the second stationary ring by stop pin.
Further improvement as technique scheme:
Described first axle sleeve adopts SiC material;
Described second axle sleeve adopts 304 Steel materials;
Described gland adopts 304 outer lining fluorine alloy materials.
The beneficial effects of the utility model are as follows:
The utility model compact structure, rationally, the first axle sleeve of SiC material and the second axle sleeve of 304 steel is adopted to match, the gland of contact medium and the first axle sleeve adopt 304 outer lining fluorine alloy material and SiC material respectively, the corrosion resistance of existing SiC has again the rigidity of 304, the fragility effectively avoiding Ceramic shaft sleeve is easy to crack, in use, resist all chemical mediators completely, sealing reliability is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, the first axle sleeve; 2, main shaft; 3, gland; 4, the first cooling cover; 5, the first seal ring; 6, the first stationary ring; 7, the first rotating ring; 8, the second seal ring; 9, rotating seat; 10, spring; 11, the 3rd seal ring; 12, the second cooling cover; 13, the 4th seal ring; 14, the second stationary ring; 15, stop pin; 16, the second axle sleeve; 17, the second rotating ring.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, the double-face mechanical sealing structure of the present embodiment, comprise main shaft 2, on the outer peripheral surface of main shaft 2, cover has the first axle sleeve 1 and the second axle sleeve 16, the end face of the first axle sleeve 1 and the second axle sleeve 16 is connected by seal arrangement, the outer peripheral surface of the first axle sleeve 1 and the second axle sleeve 16 joint is provided with rotating seat 9, the two ends symmetry of rotating seat 9 installs the first rotating ring 7 and the second rotating ring 17, first rotating ring 7 is connected by the second seal ring 8 and the first axle sleeve 1, second rotating ring 17 is connected by the 3rd seal ring 11 and the second axle sleeve 16, mounting spring 10 between first rotating ring 7 and the second rotating ring 17, the excircle that the outer peripheral surface being positioned at the first axle sleeve 1 outside the first rotating ring 7 is also provided with the first stationary ring 6, first stationary ring 6 installs gland 3 and the first cooling cover 4 by the first seal ring 5, be positioned on the second axle sleeve 16 outside the second rotating ring 17 and second stationary ring 14 is also installed, the excircle of the second stationary ring 14 installs the second cooling cover 12 by the 4th seal ring 13, second cooling cover 12 and the first cooling cover 4 end face are connected, and second cooling cover 12 one end is connected with the second stationary ring 14 by stop pin 15.
First axle sleeve 1 adopts SiC material.
Second axle sleeve 16 adopts 304 Steel materials.
Gland 3 adopts 304 outer lining fluorine alloy materials.
The utility model adopts the component material of contact medium to be that 304 outer lining fluorine alloy and SiC combine.Axle sleeve adopts SiC and 304 two kind to match, and the corrosion resistance of existing SiC has again the rigidity of 304.The transmission of machine envelope rotating ring relies on two keyways on 304 axle sleeves, avoids the fragility of Ceramic shaft sleeve easy to crack.Adopt 304 outer lining fluorine alloy with the component of medium contact, rely on the anti-corrosion and resistance to heat that fluorine alloy is very excellent, it almost can resist all chemical mediators.Good seal performance, operational safety is high.
More than describing is to explanation of the present utility model, and be not the restriction to model utility, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.
Claims (4)
1. a double-face mechanical sealing structure, it is characterized in that: comprise main shaft (2), on the outer peripheral surface of described main shaft (2), cover has the first axle sleeve (1) and the second axle sleeve (16), described first axle sleeve (1) is connected by seal arrangement with the end face of the second axle sleeve (16), the outer peripheral surface of described first axle sleeve (1) and the second axle sleeve (16) joint is provided with rotating seat (9), the two ends symmetry of described rotating seat (9) installs the first rotating ring (7) and the second rotating ring (17), described first rotating ring (7) is connected by the second seal ring (8) and the first axle sleeve (1), described second rotating ring (17) is connected by the 3rd seal ring (11) and the second axle sleeve (16), mounting spring (10) between described first rotating ring (7) and the second rotating ring (17), the outer peripheral surface being positioned at first axle sleeve (1) in the first rotating ring (7) outside is also provided with the first stationary ring (6), and the excircle of described first stationary ring (6) installs gland (3) and the first cooling cover (4) by the first seal ring (5), be positioned on the second axle sleeve (16) outside the second rotating ring (17) and the second stationary ring (14) is also installed, the excircle of described second stationary ring (14) installs the second cooling cover (12) by the 4th seal ring (13), described second cooling cover (12) and the first cooling cover (4) end face are connected, and described second cooling cover (12) one end is connected with the second stationary ring (14) by stop pin (15).
2. double-face mechanical sealing structure as claimed in claim 1, is characterized in that: described first axle sleeve (1) adopts SiC material.
3. double-face mechanical sealing structure as claimed in claim 1, is characterized in that: described second axle sleeve (16) adopts 304 Steel materials.
4. double-face mechanical sealing structure as claimed in claim 1, is characterized in that: described gland (3) adopts 304 outer lining fluorine alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078134.5U CN204553832U (en) | 2015-02-04 | 2015-02-04 | Double-face mechanical sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078134.5U CN204553832U (en) | 2015-02-04 | 2015-02-04 | Double-face mechanical sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553832U true CN204553832U (en) | 2015-08-12 |
Family
ID=53828947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520078134.5U Active CN204553832U (en) | 2015-02-04 | 2015-02-04 | Double-face mechanical sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302035A (en) * | 2017-12-20 | 2018-07-20 | 杭州电子科技大学 | A kind of packaging machinery sealing elastomer Quimby pump |
-
2015
- 2015-02-04 CN CN201520078134.5U patent/CN204553832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302035A (en) * | 2017-12-20 | 2018-07-20 | 杭州电子科技大学 | A kind of packaging machinery sealing elastomer Quimby pump |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |