CN207393959U - Grader labyrinth with adding pressure type hermetic seal - Google Patents
Grader labyrinth with adding pressure type hermetic seal Download PDFInfo
- Publication number
- CN207393959U CN207393959U CN201720784262.0U CN201720784262U CN207393959U CN 207393959 U CN207393959 U CN 207393959U CN 201720784262 U CN201720784262 U CN 201720784262U CN 207393959 U CN207393959 U CN 207393959U
- Authority
- CN
- China
- Prior art keywords
- labyrinth
- grader
- hermetic seal
- air
- air passage
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model is related to grader technical fields, and in particular to the grader labyrinth with adding pressure type hermetic seal, including：It is classified cover plate, high pressure admission mouth, compressed air air passage, labyrinth, grading wheel under labyrinth, hermetic seal air passage, grader on grader, the adding pressure type hermetic seal labyrinth that the utility model uses, the abrasion in labyrinth can effectively be reduced, material residual and the accumulation at labyrinth are effectively reduced, significantly avoids grading wheel locking.It enters the wind the pressure-air used, and pressure can be adjusted voluntarily, be suitable for the application of the larger material of proportion.
Description
Technical field
The utility model is related to grader technical fields, and in particular to the grader labyrinth with adding pressure type hermetic seal.
Background technology
Grader labyrinth is the component of grading wheel and head joint, and grading wheel is high-speed drive component, and head is fixed
Component, joint needs to leave gap, and does Seal Design to gap using labyrinth.Traditional labyrinth clearance, by setting
Standby internal negative pressure or positive pressure wind-force form it hermetic seal protection, to avoid there is material residual packing at labyrinth clearance, cause
Labyrinth blocks, grading wheel locking, but because it is pure inside Xun Huan, is mixed in circulating current with substantial amounts of material, gas powder
Object can cause to wear to labyrinth, and negative pressure inside equipment or positive pressure traction are done and be affected by system Multiple factors, therefore effect
Limited or even do not have any effect in many applications, grading wheel easily locking, application number 201020274036.6 is submitted
A kind of blowback labyrinth seal for centrifugal classifier, sealed using Self-absorption type air, suck atmospheric air when, for proportion compared with
Effect unobvious during big application.
Utility model content
The purpose of this utility model is that：Wearing, effectively reducing material residual at labyrinth for labyrinth can effectively be reduced by providing
With the grader labyrinth of accumulation.
Grader labyrinth with adding pressure type hermetic seal, it is characterised in that including：Labyrinth, gas on classification cover plate, grader
Labyrinth, grading wheel, high pressure admission mouth, compressed air air passage, the grading wheel are installed on grader under sealing air flue, grader
Cover board, maintains gap between the classification cover plate and grading wheel, the gap is hermetic seal air passage, the high pressure
Air filtering plug is installed in air inlet.
Preferably, the pure air pressure that the high pressure admission mouth is squeezed into is 1kg-2kg.
Preferably, the compressed air air passage is provided with multiple air holes.
Compared with prior art, the adding pressure type hermetic seal labyrinth that the utility model uses, can effectively reduce the abrasion in labyrinth,
Material residual and the accumulation at labyrinth are effectively reduced, significantly avoids grading wheel locking.It enters the wind the pressure-air used, pressure
Power can be adjusted voluntarily, be suitable for the application of the larger material of proportion.
Description of the drawings
Fig. 1 is the structure diagram of the utility model,
In figure：Be classified cover plate 1, high pressure admission mouth 2, compressed air air passage 3, labyrinth 4 on grader, hermetic seal air passage 5,
Labyrinth 6, grading wheel 7 under grader.
Specific embodiment
The utility model is described further below in conjunction with attached drawing：
Embodiment：
As shown in Figure 1
The grader labyrinth with adding pressure type hermetic seal of the utility model, including：Be classified cover plate 1, high pressure admission mouth 2,
Labyrinth 6, grading wheel 7 under labyrinth 4, hermetic seal air passage 5, grader on compressed air air passage 3, grader；
The grading wheel is installed on classification cover plate, and gap is maintained between the classification cover plate and grading wheel,
The gap is hermetic seal air passage, and air filtering plug is equipped in the high pressure admission mouth.
The utility model is further arranged to, and the pure air pressure that the high pressure admission mouth is squeezed into is 1kg-2kg.
The utility model is further arranged to, and the compressed air air passage is provided with multiple air holes.
The assembling assembling of grader as shown in Figure 1, driving member grading wheel 7 is installed on classification cover plate 1, between leave one
Fixed gap forms hermetic seal air passage 5, in no external air inlet, air passage air turbulence and belongs to primary mixture, i.e., not
Hermetic seal interlayer can be formed completely, and has certain abrasion to upper and lower labyrinth 4,6.It is sealed using Self-absorption type air, sucking normal pressure is empty
During gas, effect unobvious when for proportion larger application.The increased adding pressure type air inlet 2 of this programme, one is squeezed by outside
The pure air of constant-pressure, generally one to two kilogram of pressure can be resetted according to material ratio and saved.Pressure-air enters compressed air
Behind air passage 3, there be multiple air holes inside, and uniformly pure compressed air is conveyed to hermetic seal air passage from surrounding.The sky of higher pressure
Gas resistance, the ability that material is avoided to enter hermetic seal air passage are stronger, and air passage air influences from internal circulating current, is pure
Air and steady air flow help to improve the stability of equipment operation, greatly reduce failure probability.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technique effect, is the protection model for falling into the utility model
It encloses.
Claims (3)
1. the grader labyrinth with adding pressure type hermetic seal, it is characterised in that including：It is classified cover plate, labyrinth on grader, airtight
Labyrinth, grading wheel, high pressure admission mouth, compressed air air passage under air passage, grader are sealed, the grading wheel is installed on classification cover
Plate, maintains gap between the classification cover plate and grading wheel, the gap is hermetic seal air passage, the high pressure into
Air filtering plug is installed in gas port.
2. the grader labyrinth according to claim 1 with adding pressure type hermetic seal, it is characterised in that：The high pressure admission mouth
The pure air pressure squeezed into is 1kg-2kg.
3. the grader labyrinth according to claim 1 with adding pressure type hermetic seal, it is characterised in that：The compressed air
Air passage is provided with multiple air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784262.0U CN207393959U (en) | 2017-06-30 | 2017-06-30 | Grader labyrinth with adding pressure type hermetic seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784262.0U CN207393959U (en) | 2017-06-30 | 2017-06-30 | Grader labyrinth with adding pressure type hermetic seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393959U true CN207393959U (en) | 2018-05-22 |
Family
ID=62403369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720784262.0U Expired - Fee Related CN207393959U (en) | 2017-06-30 | 2017-06-30 | Grader labyrinth with adding pressure type hermetic seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393959U (en) |
-
2017
- 2017-06-30 CN CN201720784262.0U patent/CN207393959U/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: 20180522 Termination date: 20200630 |