CN206513835U - A kind of unilateral fixed mechanical sealing mechanism - Google Patents
A kind of unilateral fixed mechanical sealing mechanism Download PDFInfo
- Publication number
- CN206513835U CN206513835U CN201720072644.0U CN201720072644U CN206513835U CN 206513835 U CN206513835 U CN 206513835U CN 201720072644 U CN201720072644 U CN 201720072644U CN 206513835 U CN206513835 U CN 206513835U
- Authority
- CN
- China
- Prior art keywords
- seal
- axle sleeve
- axle
- cavity
- end plate
- 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
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- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of unilateral fixed mechanical sealing mechanism, including axle, the seal cavity being enclosed on axle and the cavity bolt being arranged in seal cavity, axle sleeve is cased with described axle, seal end plate is fixed by axle sleeve fixing bolt with axle sleeve retainer ring, while seal end plate is fixed by stationary ring fixing bolt and seal cavity；Rotating ring is provided between described seal cavity and axle sleeve, rotating ring is connected with seal end plate.The utility model passes through fixed seal end plate and axle sleeve retainer ring, you can complete to install, i.e., need to only be operated in seal cavity one side, just can complete to install by the way that machine is sealed into integral installation to sealing station.It is particularly suitable for transforming old-fashioned packing seal, can also simplifies standard machinery sealing installation difficulty, substantially increase efficiency of construction, reduce business administration cost, enhance enterprise competitiveness.
Description
Technical field
The utility model is related to sealing structure field, specially a kind of unilateral fixed mechanical sealing mechanism.
Background technology
During various social equipment development, sealing structure has its indispensable important function.It is existing close
Envelope mainly includes two structure types of packing seal and mechanical seal.
Packing seal：Also known as compress filler（Gland Packings）Sealing, is commonly called as packing（Packings）Sealing.Disk
Root sealing is a kind of most ancient sealing structure, in the water lifting machinery of Ancient Times in China, is exactly blocked up with the method for filling cotton yarn
Firmly leak, the steam engine occurred earliest in the world is also to use this seal form.
Filler loads after packing cavity, and it is compressed axially through gland screw, when axle has relative motion with filler, by
In the plasticity of filler, it is set to produce radial load, and be in close contact with axle.At the same time, the lubricant impregnated in filler is extruded,
Oil film is formed between contact surface.Because contact condition is not especially uniform, just there is " boundary lubrication " shape in contact site
State, is referred to as " bearing effect "；And not in contact with recess form small oil groove, have a thicker oil film, contact site and noncontact position
One of irregular labyrinth of composition, plays a part of to prevent liquid from flowing leakage, this claims " labyrinth effect ".
Packing seal is inexpensive and largely used in a large amount of engineering machinery because relatively simple for structure, but because this is close
Envelope form needs to keep liquid film and radiating requirements, the occurrence of sealing station can not prevent water clock in use, and fills out
Material periodically need to be compressed and changed, therefore equipment should not keep clean and tidy, and operation maintenance pressure is very big.
Mechanical seal (mechanical seal), also known as end face seal refers to by least one pair of perpendicular to rotation axis
End face in Fluid pressure and compensation mechanism elastic force（Or magnetic force）In the presence of and the cooperation of auxiliary seal under keep laminating simultaneously
The device for preventing fluid from leaking constituted with respect to slip.Because mechanical seal has the advantages that leakage rate is lacked and long lifespan, institute
It is exactly mechanical seal in the topmost sealing mode of pump equipment.
Mechanical seal installation process is more complicated, and rotating ring is fixed by tight fixed bolt, and stationary ring is fixed by end cap, and both sides are all needed
Fix, it is therefore desirable to which equipment is integrally isolated from working condition, and equipment is disassembled, and whole annular seal space is required for tearing open
Unload, the installation of tight fixed bolt could be carried out, change maintenance workload than larger.And because mechanical sealing mechanism and equipment coordinate
Use, the replaceability of part is poor.
Therefore it provides a kind of sealing mechanism that can be organically combined packing seal and mechanical seal, has been one
Individual good problem to study.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of simple in construction, good sealing effect,
And in the case where annular seal space is not exclusively disassembled, by the unilateral solid mechanical sealing mechanism of packing seal more mechanical seal.
What the purpose of this utility model was realized in：
A kind of fixed mechanical sealing mechanism merely, including axle 11, the seal cavity 2 being enclosed on axle 11 and are arranged on close
The cavity bolt 1 sealed on cavity 2, it is characterised in that：Axle sleeve 3 is cased with described axle 11, seal end plate 8 fixes spiral shell by axle sleeve
Bolt 9 is fixed with axle sleeve retainer ring 10, while seal end plate 8 is fixed by stationary ring fixing bolt 7 with seal cavity 2；
Rotating ring 6 is provided between described seal cavity 2 and axle sleeve 3, rotating ring 6 is connected with seal end plate 8；
Spring 5 and O-ring seal 4 are respectively arranged between described rotating ring 6 and axle sleeve 3；
O-ring seal is provided between described axle sleeve 3 and axle 11.
Positive beneficial effect：The utility model is simple in construction, by the way that machine is sealed into integral installation to sealing station, passes through fixation
Seal end plate and axle sleeve retainer ring, you can complete to install, i.e., need to only operate in seal cavity one side, just can complete to install.Especially
It is adapted to the old-fashioned packing seal of transformation, can also simplifies standard machinery sealing installation difficulty, substantially increase efficiency of construction, reduce enterprise
Industry management cost, enhances enterprise competitiveness.
Brief description of the drawings
Fig. 1 is structural representation one of the present utility model；
It is in figure：Cavity bolt 1, seal cavity 2, axle sleeve 3, O-ring seal 4, spring 5, rotating ring 6,
Stationary ring fixing bolt 7, stationary ring and gland 8, axle sleeve fixing bolt 9, axle sleeve retainer ring 10, axle 11.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described further：
As illustrated, a kind of fixed mechanical sealing mechanism merely, including axle 11, be enclosed on the seal cavity 2 on axle 11 with
And it is arranged on the cavity bolt 1 in seal cavity 2, it is characterised in that：Axle sleeve 3 is cased with described axle 11, seal end plate 8 passes through
Axle sleeve fixing bolt 9 is fixed with axle sleeve retainer ring 10, while seal end plate 8 is consolidated by stationary ring fixing bolt 7 and seal cavity 2
It is fixed；
Rotating ring 6 is provided between described seal cavity 2 and axle sleeve 3, rotating ring 6 is connected with seal end plate 8；
Spring 5 and O-ring seal 4 are respectively arranged between described rotating ring 6 and axle sleeve 3；
O-ring seal is provided between described axle sleeve 3 and axle 11.
In use, by the way that machine is sealed into integral installation to sealing station, passing through fixed seal end plate and axle sleeve retainer ring, you can
Complete to install, i.e., need to only be operated in seal cavity one side, just can complete to install.It is particularly suitable for transforming old-fashioned packing seal, also may be used
Simplify standard machinery sealing installation difficulty, substantially increase efficiency of construction, reduce business administration cost, enhance competition among enterprises
Power.
Above case study on implementation is merely to illustrate preferred embodiment of the present utility model, but the utility model is not limited to
State embodiment, in the knowledge that the field those of ordinary skill possesses, it is of the present utility model spirit and principle it
Interior made any modification, equivalent substitute and improvement etc., are regarded as the protection domain of the application.
Claims (4)
1. a kind of unilateral fixed mechanical sealing mechanism, including axle, the seal cavity being enclosed on axle and seal cavity is arranged on
On cavity bolt, it is characterised in that：Axle sleeve is cased with described axle, seal end plate is fixed by axle sleeve fixing bolt and axle sleeve
Ring is fixed, while seal end plate is fixed by stationary ring fixing bolt and seal cavity.
2. a kind of unilateral fixed mechanical sealing mechanism according to claim 1, it is characterised in that：Described seal cavity
Rotating ring is provided between axle sleeve, rotating ring is connected with seal end plate.
3. a kind of unilateral fixed mechanical sealing mechanism according to claim 2, it is characterised in that：Described rotating ring 6 with
Spring and O-ring seal are respectively arranged between axle sleeve.
4. a kind of unilateral fixed mechanical sealing mechanism according to claim 1 or 3, it is characterised in that：Described axle sleeve
O-ring seal is provided between axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720072644.0U CN206513835U (en) | 2017-01-20 | 2017-01-20 | A kind of unilateral fixed mechanical sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720072644.0U CN206513835U (en) | 2017-01-20 | 2017-01-20 | A kind of unilateral fixed mechanical sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513835U true CN206513835U (en) | 2017-09-22 |
Family
ID=59865854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720072644.0U Expired - Fee Related CN206513835U (en) | 2017-01-20 | 2017-01-20 | A kind of unilateral fixed mechanical sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513835U (en) |
-
2017
- 2017-01-20 CN CN201720072644.0U patent/CN206513835U/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 |
Granted publication date: 20170922 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |