CN202612635U - Mechanical seal for packing seal cavity - Google Patents
Mechanical seal for packing seal cavity Download PDFInfo
- Publication number
- CN202612635U CN202612635U CN 201220184453 CN201220184453U CN202612635U CN 202612635 U CN202612635 U CN 202612635U CN 201220184453 CN201220184453 CN 201220184453 CN 201220184453 U CN201220184453 U CN 201220184453U CN 202612635 U CN202612635 U CN 202612635U
- Authority
- CN
- China
- Prior art keywords
- ring
- compensated loop
- seal
- spring
- type circle
- 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.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical seal for a packing seal cavity. The mechanical seal comprises a transmission sleeve, a spring, a push ring, a compensation ring and a non-compensation ring. A contact face of the compensation ring and the non-compensation ring is a sealing face and arranged on the largest end face of the outer diameter of the compensation ring, a supporting ring is sleeved on the compensation ring, and an extending end of the transmission sleeve is sleeved on the outside of the spring, the push ring, the supporting ring and the compensation ring. The mechanical seal has the advantages of being compact in structure, small in radial size and suitable for narrow space, adopting balancing multi-spring design, and being good in sealing effect. The diameter of an O-shaped ring between the non-compensation ring and the seal cavity is equal to that of the O-shaped ring between the compensation ring and the transmission sleeve. The stress on the whole seal is offset mutually, and bi-directional pressure can be borne.
Description
Technical field
The utility model relates to the mechanical sealing technology field, is specifically related to a kind of mechanical seal that is used for the packing seal chamber.
Background technique
In the industry equipment in early days, more employing packing seal, along with the development of mechanical seal, mechanical seal has replaced filler gradually, and industry equipment in the past, Seal cage is narrower, and mechanical seal is difficult for installing and using.
The model utility content
The purpose of the utility model is to overcome above-mentioned not enough problem, and a kind of mechanical seal that is used for the packing seal chamber is provided.
The utility model for realizing the technological scheme that above-mentioned purpose adopted is: a kind of mechanical seal that is used for the packing seal chamber; Comprise drive sleeve, spring, throw-out collar, compensated loop, uncompensated ring; And connecting sleeve is contained on the axle successively, and the surface of contact of said compensated loop and uncompensated ring is a sealing surface, and said sealing surface is positioned at the external diameter largest end face of said compensated loop; Be set with support ring on the said compensated loop, the external part of said drive sleeve is enclosed within the outside of said spring, throw-out collar, support ring, compensated loop.
Said compensated loop is a stepped shaft, and it is positioned at the external diameter maximum of an end of uncompensated ring.
O type circle three is installed between said uncompensated ring and the seal chamber, O type circle two is installed between said compensated loop and the drive sleeve, said O type circle three is identical with the diameter of O type circle two.
One end of said throw-out collar assigns in the annular groove of said compensated loop.
The characteristics of the utility model are: compact structure; Radial dimension is little; Be applicable to that narrow space adopts the many springs designs of balance type, good sealing effect, and the diameter of O type circle between uncompensated ring and the seal chamber and the O type circle between compensated loop and the drive sleeve is identical; The whole suffered pressure of sealing is cancelled out each other, and can bear bidirection press.
Description of drawings
Fig. 1 is that the utility model is by external mounted structures arranged schematic representation;
Fig. 2 is that the utility model is by built-in type structures arranged schematic representation.
Wherein: 1, snap ring 2, drive sleeve 3, screw 4, location piece 5, socket head screw 6, O type circle 1, spring 8, throw-out collar 9, support ring 10, O type circle 2 11, compensated loop 12, uncompensated ring 13, stop pin 14, O type circle.
Embodiment
Embodiment one
As shown in Figure 1, the utility model is pressed external mounted and is arranged that it comprises drive sleeve 2, spring 7, throw-out collar, compensated loop 11, uncompensated ring 12; And connecting sleeve is contained on the axle successively, and said uncompensated ring 12 is connected with seal chamber through stop pin 13, and said compensated loop 11 is a sealing surface with the surface of contact of uncompensated ring 12; Said compensated loop 11 is a stepped shaft, and its external diameter of an end that is positioned at uncompensated ring 12 is maximum, and promptly said sealing surface is positioned at the external diameter largest end face of said compensated loop 11; So that the radial dimension of the utility model reduces, an end of said throw-out collar 8 assigns in the annular groove of said compensated loop 11, is set with support ring 9 on the said compensated loop 11; Said spring 7 adopts the many spring structures of balance types, and the external part of said drive sleeve 2 is enclosed within the outside of said spring 7, throw-out collar 8, support ring 9, compensated loop 11, and the other end of said drive sleeve 2 is spacing through the snap ring 1 that is installed on the axle; Said drive sleeve 2 is fastenedly connected through screw 3 and axle sleeve, and O type circle 1 is installed between said drive sleeve 2 and the axle sleeve, and O type circle 2 10 is installed between said compensated loop 11 and the drive sleeve 2; O type circle 3 14 is installed between said uncompensated ring 12 and the seal chamber, and said O type circle 2 10 is identical with the diameter of O type circle 3 14, when the sealing running, bears interior pressure; Because said O type circle 2 10 is identical with the diameter of O type circle 3 14, the whole suffered pressure of sealing is cancelled out each other, and sealing surface keeps fitting under the effect of spring 7; Reach the effect of sealing, and drive sleeve 2 is rotated with axle sleeve, drive sleeve 2 passes to throw-out collar 8 with rotation torque; Because the part of throw-out collar 8 extend in the annular groove of compensated loop 11; Make compensated loop 11 rotate together thereupon, and uncompensated ring 12 transfixion under stop pin 13 effects, drive sleeve 2 outsides are equipped with location piece 4 through socket head screw 5; To guarantee the working depth of spring 7, also can realize the collection dress simultaneously.
Embodiment two
As shown in Figure 2, the utility model is pressed built-in type and is arranged that it comprises drive sleeve 2, spring 7, throw-out collar, compensated loop 11, uncompensated ring 12; And connecting sleeve is contained on the axle successively, and said uncompensated ring 12 is connected with seal chamber through stop pin 13, and said compensated loop 11 is a sealing surface with the surface of contact of uncompensated ring 12; Said compensated loop 11 is a stepped shaft; And it is positioned at the external diameter maximum of an end of uncompensated ring 12, and promptly said sealing surface is positioned at the external diameter largest end face of said compensated loop 11, so that the radial dimension of the utility model reduces; One end of said throw-out collar 8 assigns in the annular groove of said compensated loop 11; Be set with support ring 9 on the said compensated loop 11, said spring 7 adopts the many spring structures of balance types, and the external part of said drive sleeve 2 is enclosed within the outside of said spring 7, throw-out collar 8, support ring 9, compensated loop 11; Said drive sleeve 2 is fastenedly connected through screw 3 and axle sleeve; O type circle 1 is installed between said drive sleeve 2 and the axle sleeve, O type circle 2 10 is installed between said compensated loop 11 and the drive sleeve 2, O type circle 3 14 is installed between said uncompensated ring 12 and the seal chamber; And said O type circle 2 10 is identical with the diameter of O type circle 3 14, and the working principle of present embodiment is identical with embodiment one working principle.
The above; Be merely the preferable embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or changes according to the technological scheme of the utility model and model utility design thereof in the technical scope that the utility model discloses, and all should be encompassed within the protection domain of the utility model.
Claims (4)
1. mechanical seal that is used for the packing seal chamber; It is characterized in that: comprise drive sleeve (2), spring (7), throw-out collar (8), compensated loop (11), uncompensated ring (12); And connecting sleeve is contained on the axle successively; Said compensated loop (11) is a sealing surface with the surface of contact of uncompensated ring (12); Said sealing surface is positioned at the external diameter largest end face of said compensated loop (11), is set with support ring (9) on the said compensated loop (11), and the external part of said drive sleeve (2) is enclosed within the outside of said spring (7), throw-out collar (8), support ring (9), compensated loop (11).
2. the mechanical seal that is used for the packing seal chamber as claimed in claim 1 is characterized in that: said compensated loop (11) is a stepped shaft, and it is positioned at the external diameter maximum of an end of uncompensated ring (12).
3. the mechanical seal that is used for the packing seal chamber as claimed in claim 1; It is characterized in that: O type circle three (14) is installed between said uncompensated ring (12) and the seal chamber; Between said compensated loop (11) and the drive sleeve (2) O type circle two (10) is installed, said O type circle three (14) is identical with the diameter of O type circle two (10).
4. the mechanical seal that is used for the packing seal chamber as claimed in claim 1 is characterized in that: an end of said throw-out collar (8) assigns in the annular groove of said compensated loop (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220184453 CN202612635U (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for packing seal cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220184453 CN202612635U (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for packing seal cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612635U true CN202612635U (en) | 2012-12-19 |
Family
ID=47346336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220184453 Expired - Lifetime CN202612635U (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for packing seal cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644742A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Mechanical seal for packing sealing cavity |
-
2012
- 2012-04-27 CN CN 201220184453 patent/CN202612635U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644742A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Mechanical seal for packing sealing cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DALIAN HUAYANG SEALS CO., LTD. Free format text: FORMER NAME: DALIAN HUAYANG GUANGDA SEALING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Patentee after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Patentee before: Dalian Huayang Seals Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |