CN207421607U - A kind of uncompensated means sealing structure - Google Patents
A kind of uncompensated means sealing structure Download PDFInfo
- Publication number
- CN207421607U CN207421607U CN201721546120.7U CN201721546120U CN207421607U CN 207421607 U CN207421607 U CN 207421607U CN 201721546120 U CN201721546120 U CN 201721546120U CN 207421607 U CN207421607 U CN 207421607U
- Authority
- CN
- China
- Prior art keywords
- procapsid
- housing
- ring
- casing
- pressing cover
- 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
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- Sealing Devices (AREA)
Abstract
The utility model is related to a kind of uncompensated means sealing structures, including hollow shaft, housing, preceding gland, rear pressing cover, preceding gland, housing and rear pressing cover are sequentially connected with by bolt to be integrated, the housing is made of procapsid, middle casing and back casing, is all provided with that there are one the through holes that are connected with annular seal space on procapsid and back casing.Elastic seal ring and auxiliary O-ring are equipped between procapsid and preceding gland and middle casing, elastic seal ring and auxiliary O-ring are equipped between back casing and rear pressing cover and middle casing.The beneficial effects of the utility model are：The abrasion of sealing element is small, and service life is long, wide using media range, and good seal performance can be kept under high-speed state.
Description
Technical field：
The utility model is related to a kind of sealing structure, more particularly to a kind of uncompensated means sealing structure.
Background technology：
It is less for the multi-path seal means of low-voltage high speed, particularly under aeration status, multimachine can only be used to seal close
Envelope form, of high cost, maintenance difficult.Common elastic packing can not then meet the operating mode of high-speed rotation, and short life influences equipment
Normal use.
The content of the invention：
The purpose of this utility model is that in view of the deficiencies of the prior art, it is small to provide a kind of abrasion of sealing element, service life
It is long, the uncompensated means sealing structure of good seal performance can be kept under high-speed state.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of uncompensated means sealing structure, including hollow shaft, housing, preceding gland, rear pressing cover, preceding gland, housing and after
Gland is sequentially connected with by bolt and is integrated, and forms external structure, and hollow shaft passes through preceding gland, housing and rear pressing cover.The shell
Body is made of procapsid, middle casing and back casing, and an annular seal space is respectively formed between procapsid, back casing and hollow shaft, close
Envelope chamber is connected with the inner cavity of hollow shaft.The through hole being connected there are one being all provided on procapsid and back casing with annular seal space.
Elastic seal ring and auxiliary O-ring are equipped between procapsid and preceding gland and middle casing, further improves the leakproofness of structure.
Elastic seal ring and auxiliary O-ring are equipped between back casing and rear pressing cover and middle casing, further improves the sealing of structure
Property.
The beneficial effects of the utility model are：The abrasion of sealing element is small, and service life is long, wide using media range, in height
Good seal performance can be kept under rotary regimes.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model.
In figure：Gland, 6 rear pressing covers, 7 bolts, 8 auxiliary are O-shaped before 1 hollow shaft, 2 procapsids, 3 middle casings, 4 back casings, 5
Circle, 9 elastic seal rings.
Specific embodiment：
As shown in Figure 1, a kind of uncompensated means sealing structure, including hollow shaft (1), housing, preceding gland (5), rear pressing cover
(6), preceding gland (5), housing and rear pressing cover (6) are sequentially connected with by bolt (7) is integrated, and forms external structure, hollow shaft (1)
Through preceding gland (5), housing and rear pressing cover (6).The housing is made of procapsid (2), middle casing (3) and back casing (4), preceding
An annular seal space, annular seal space and the inner cavity phase of hollow shaft (1) are respectively formed between housing (2), back casing (4) and hollow shaft (1)
Connection.The through hole being connected there are one being all provided on procapsid (2) and back casing (4) with annular seal space.In procapsid (2) and preceding pressure
Elastic seal ring (9) and auxiliary O-ring (8) are equipped between lid (5) and middle casing (3), further improves the leakproofness of structure.
Elastic seal ring (9) and auxiliary O-ring (8) are equipped between back casing (4) and rear pressing cover (6) and middle casing (3), further
Improve the leakproofness of structure.
By the use of high molecular material as the basis of elastic seal ring (9), then by adding in carbon fiber and metal powder into one
Step promotes the mechanical performance and wear-resisting property of elastic seal ring (9), and then adding in carbon dust under aeration status is lubricated, and makes the sealing longevity
It orders longer.Sealing element does not use any compensating form, using the sintering to material in production process, is being molded sealing element
Shape changing memory is generated in journey, is that sealing element self-dependent can remember the initial sealing of guarantee under first dress state, works as medium
By when, medium to the unilateral pressure of sealing element then can further lift-off seal fitting ability, ensure to use high-speed state
Under sealing performance because without the compensation of spring and rubber, the sealing element made is not subject to extra power in use,
So as to reduce the abrasion of sealing element.Also, this structure can carry out multiple number requirements enumerated, can reach multi-path.
Claims (1)
1. a kind of uncompensated means sealing structure, including hollow shaft, housing, preceding gland, rear pressing cover, preceding gland, housing and rear pressure
Lid is sequentially connected with by bolt to be integrated, and forms external structure, and hollow shaft passes through preceding gland, housing and rear pressing cover, it is characterized in that：
The housing is made of procapsid, middle casing and back casing, and a sealing is respectively formed between procapsid, back casing and hollow shaft
Chamber, annular seal space are connected with the inner cavity of hollow shaft, are all provided on procapsid and back casing logical there are one what is be connected with annular seal space
Hole is equipped with elastic seal ring and auxiliary O-ring between procapsid and preceding gland and middle casing, in back casing and rear pressing cover and
Elastic seal ring and auxiliary O-ring are equipped between middle casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546120.7U CN207421607U (en) | 2017-11-09 | 2017-11-09 | A kind of uncompensated means sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546120.7U CN207421607U (en) | 2017-11-09 | 2017-11-09 | A kind of uncompensated means sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421607U true CN207421607U (en) | 2018-05-29 |
Family
ID=62303231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721546120.7U Expired - Fee Related CN207421607U (en) | 2017-11-09 | 2017-11-09 | A kind of uncompensated means sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207421607U (en) |
-
2017
- 2017-11-09 CN CN201721546120.7U patent/CN207421607U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20181109 |