CN2660235Y - Shaft sealing device - Google Patents
Shaft sealing device Download PDFInfo
- Publication number
- CN2660235Y CN2660235Y CN 200320128778 CN200320128778U CN2660235Y CN 2660235 Y CN2660235 Y CN 2660235Y CN 200320128778 CN200320128778 CN 200320128778 CN 200320128778 U CN200320128778 U CN 200320128778U CN 2660235 Y CN2660235 Y CN 2660235Y
- Authority
- CN
- China
- Prior art keywords
- friction ring
- gland
- axle
- utility
- model
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 title abstract description 16
- 210000004907 gland Anatomy 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002360 explosive Substances 0.000 abstract description 2
- 239000002341 toxic gas Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a sealing device, in particular to a sealing device used between a rotating crankshaft and a body of compressor (such as air compressor and refrigerating compressor), including a body (3), a shaft (1) supported on the body (3), and a shaft seal gland (11) arranged on the external side of the body (3). The utility model is characterized in that: a fixed friction ring (5) and a movable friction ring (6) are arranged between the body (3) and the gland (11); the fixed friction ring (5) is inserted in the body (3) and the movable friction ring (6) is jointed on the shaft (1); and the movable friction ring (6) and the fixed friction ring (5) are in contact sealing. Compared with the existing technology, the utility model has good sealing effect with no oil leakage in the shaft seal, strict sealing between the crankshaft box and the outside, no high-pressure medium leakage and no external air mixed in the working medium under negative pressure environment. The utility model is particularly suitable to seal parts of high temperature, high pressure, high speed and large size; especially in high-speed rotation, the sealing effect is better, thus providing a good sealing device to transport flammable, explosive and toxic gases.
Description
Technical field:
The utility model relates to a kind of gland seal device, particularly a kind of turning crankshaft on the compressor (as air press, refrigeration compressor etc.) and seal arrangement between the body of being used for.
Background technique:
Compressor is widely used in the production practices, as refrigeration compressor in air compressor, the refrigeration system etc.With the air compressor is example, its critical piece is a body, in the body upper support bent axle (main shaft) is arranged, bent axle connective pole, piston, by the to-and-fro motion of piston in cylinder, reach and suck gas, pressurized gas and the gas of compression is sent into purpose in the gas cylinder, be discharged into work done in the device that needs pressurized gas by various valves again.Between body and the bent axle bearing is housed, be equipped with lubricating grease mostly or be used for the lubricated of bearing by the oil duct on the body by the oil supplying device supplying lubricating oil at the bearing place, is set with the oil sealing baffle ring on bent axle, and the outside is provided with bearing gland and connects with body.This gland seal device has following shortcoming: poor sealing performance, and lubricating grease (oil) is revealed; In the course of the work, the crankcase intracavity of body can produce certain pressure, and working medium can leak by axle envelope place, after especially the working medium of chemical industry is revealed, can produce pollution in various degree; Have plenty of under negative pressure and work, at this moment air can enter by axle envelope place influences proper functioning in the system; Can produce pollution to food if be used for food service industry, influence quality of product.Choking phenomenon appears in oil leab on the body sometimes, damages bearing, increases engineering time, also makes the integral device structure complicated.
Summary of the invention:
The purpose of this utility model provides a kind of good sealing effect, lubricant oil (fat), the dead-tight gland seal device of working medium, overcomes the deficiencies in the prior art.
Technical solution of the present utility model is: a kind of gland seal device, it comprises body 3 and the axle 1 that is supported on the body 3, in the outside of body 3 sealed cover 11 is housed, it is characterized in that: between body 3 and gland 11, be equipped with and decide friction ring 5 and kinetic friction ring 6, deciding friction ring 5 is embedded on the body 3, kinetic friction ring 6 is sleeved on the axle 1, and kinetic friction ring 6 is that face contact type seals with deciding between the friction ring 5.
Be provided with the spring planet 7 of lock ring on axle 1 between the termination of described spring 8 and the kinetic friction ring 6.
Describedly decide to be provided with rubber gasket 4 between friction ring 5 and body 3, the gland 11.
Bearing between described body 3 and the axle 1 is a self-lubrication ceramic bearing 2.
Described kinetic friction ring 6, decide friction ring 5 and be ceramic ring plate.
The utility model compared with prior art has advantage of good sealing effect, and axle envelope place does not have oil and reveals, crankcase and extraneous strict seal, and high-pressure medium does not leak, and can't sneak in the working medium at subnormal ambient work ambient air.Be particularly suitable for high temperature, high pressure, high speed and large scale sealing position, when especially running up, sealing effect is better, and pressing to carry for band inflammable, explosive, toxic gas provides good seal arrangement.Need not to install oil supplying device, simplified equipment, the maintenance of having stopped lubricating oil path has improved working efficiency.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment:
As shown in the figure: 1 is the main shaft of compressor, mostly is the bent axle form.3 is body, between body 3 and axle 1 bearing 2 is housed, and bearing 2 is selected the self-lubrication ceramic bearing for use, has saved oil leab and oil supplying device on the body 3.The fastening connection between the overcoat of bearing 2 and the body 3, be fastening the connection between the interior cover of bearing 2 and the axle 1.Be set with a sealed cover 11 on the axle 1, fixing with bolt 10, can be provided with sealing gasket and sealing configuration of the present utility model between gland 11 and the body 3, concrete structure is as follows: on body 3 and gland 11, stud with rubber washer 4 and decide friction ring 5, make decide friction ring 5, rubber washer 4 is fastened on body 3 and the gland 11 and forms integrative-structure.Be set with the kinetic friction ring 6 that rotates with axle 1 on axle 1, kinetic friction ring 6 is that side-contact type seals with deciding between the friction ring 5.Describedly decide friction ring 5, kinetic friction ring 6 is two groups and is symmetrical arranged, on axle 1 between two kinetic friction 6, be with axle envelope rubber 9, the two ends of axle envelope rubber 9 is provided with the spring planet 7 of rubber material, axle envelope rubber 9 is structure as a whole with spring planet 7, the outside at axle envelope rubber 9 is with spring 8, the two ends of spring 8 lean on spring planet 7 and press to kinetic friction ring 6, and kinetic friction ring 6 tightly relies on decides friction ring 5.By body 3, rubber washer 4, decide friction ring 5, kinetic friction ring 6, spring planet 7, an axle envelope rubber 9 forms a many places seal arrangement, the crankcase intracavity that makes body 3 inboards has reached the better seal state with extraneous thoroughly isolated.Describedly decide the ring plate shape that friction ring 5, kinetic friction ring 6 are stupalith,
Claims (6)
1, a kind of gland seal device, it comprises body [3] and is supported on axle [1] on the body [3], in the outside of body [3] sealed cover [11] is housed, it is characterized in that: between body [3] and gland [11], be equipped with and decide friction ring [5] and kinetic friction ring [6], deciding friction ring [5] is embedded on the body [3], kinetic friction ring [6] is sleeved on the axle [1], and kinetic friction ring [6] is that face contact type seals with deciding between the friction ring [5].
2, gland seal device according to claim 1 is characterized in that: the kinetic friction ring [6] between described body [3] and the gland [11] and decide friction ring [5] be two the cover be symmetrical arranged, be set with spring [8] on its jack shaft [1] and lean on kinetic friction ring [6].
3, gland seal device according to claim 2 is characterized in that: be provided with the spring planet [7] of lock ring on axle [1] between the termination of described spring [8] and the kinetic friction ring [6].
4, gland seal device according to claim 3 is characterized in that: describedly decide to be provided with rubber gasket [4] between friction ring [5] and body [3], the gland [11].
5, gland seal device according to claim 4 is characterized in that: the bearing between described body [3] and the axle [1] is self-lubrication ceramic bearing [2].
6, according to the described gland seal device of claim 1-5, it is characterized in that: described kinetic friction ring [6], decide friction ring [5] for ceramic ring plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128778 CN2660235Y (en) | 2003-12-24 | 2003-12-24 | Shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128778 CN2660235Y (en) | 2003-12-24 | 2003-12-24 | Shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660235Y true CN2660235Y (en) | 2004-12-01 |
Family
ID=34349866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128778 Expired - Fee Related CN2660235Y (en) | 2003-12-24 | 2003-12-24 | Shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660235Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156008B (en) * | 2005-04-02 | 2010-11-03 | 厄利孔莱博尔德真空技术有限责任公司 | Shaft sealing and vacuum pump with the shaft sealing |
| CN102588264A (en) * | 2011-01-14 | 2012-07-18 | 上海易昆机械工程有限公司 | Combined cartridge mechanical sealing structure |
-
2003
- 2003-12-24 CN CN 200320128778 patent/CN2660235Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156008B (en) * | 2005-04-02 | 2010-11-03 | 厄利孔莱博尔德真空技术有限责任公司 | Shaft sealing and vacuum pump with the shaft sealing |
| CN102588264A (en) * | 2011-01-14 | 2012-07-18 | 上海易昆机械工程有限公司 | Combined cartridge mechanical sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |