CN204942538U - A kind of axle head gas-tight sealing - Google Patents
A kind of axle head gas-tight sealing Download PDFInfo
- Publication number
- CN204942538U CN204942538U CN201520277375.2U CN201520277375U CN204942538U CN 204942538 U CN204942538 U CN 204942538U CN 201520277375 U CN201520277375 U CN 201520277375U CN 204942538 U CN204942538 U CN 204942538U
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- CN
- China
- Prior art keywords
- transmission shaft
- outside framework
- sealing seat
- framework oil
- oil seal
- 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 Devices (AREA)
Abstract
The utility model discloses a kind of axle head gas-tight sealing, comprise the sealing seat be fixed on plasticizing apparatus, transmission shaft is equipped with in sealing seat, transmission shaft is by being fixed on the bearing support rotational support on plasticizing apparatus, the step hole wearing transmission shaft is provided with in described sealing seat, step hole comprises the aperture arranged from inside to outside successively, mesopore, macropore, aperture inwall is provided with two annular grooves, the outside framework oil seal assembly be made up of at least one outside framework oil seal is provided with between macropore and transmission shaft, annular space between mesopore with transmission shaft is connected with the external world with air outlet channel by the intake duct be arranged in sealing seat.Two annular grooves on the utility model aperture inwall have the effect gathering dust, along with increasing of dust accumulation, the dust that can intercept plasticizing apparatus endoparticle larger enters mesopore from aperture, gas seal then can take the dust entering mesopore out of sealing seat otherwise processed, thus efficiently solves plasticizing apparatus dust and to leak the problem of befouling environment.
Description
Technical field
The utility model relates to a kind of axle head gas-tight sealing.
Background technique
China is the rubber-consumer big country of first place, the world, but domestic rubber sources is very deficient, the natural rubber dependence on import of more than 70%, and the recycling utilization of waste old is significant to the scarcity filling up rubber sources.A lot of waste old is by regeneration after plasticizing apparatus plasticizing, and during plasticizing apparatus work, temperature is higher, makes the sealing effect at plasticizing apparatus transmission shaft shaft place poor, thus causes the dust in plasticizing apparatus to leak and befouling environment.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of and prevents the dust in plasticizing apparatus from leaking and the axle head gas-tight sealing of befouling environment.
The utility model solves the technological scheme that its technical problem adopts: a kind of axle head gas-tight sealing, comprise the sealing seat be fixed on plasticizing apparatus, transmission shaft is equipped with in sealing seat, transmission shaft is by being fixed on the bearing support rotational support on plasticizing apparatus, the step hole wearing transmission shaft is provided with in described sealing seat, step hole comprises the aperture arranged from inside to outside successively, mesopore, macropore, aperture inwall is provided with two annular grooves, the outside framework oil seal assembly be made up of at least one outside framework oil seal is provided with between macropore and transmission shaft, annular space between mesopore with transmission shaft is connected with the external world with air outlet channel by the intake duct be arranged in sealing seat.
Described outside framework oil seal assembly is by the back-up ring axially locating be arranged on outside macropore, outside framework oil seal assembly comprises three outside framework oil seals, wherein be provided with oil storage ring between a pair outside framework oil seal and another outside framework oil seal, a pair outside framework oil seal is arranged on inside macropore, is provided with Gask-O-Seal between a pair outside framework oil seal.
Described oil storage ring external peripheral surface offers annular oil groove, and annular oil groove communicates with the in-line be arranged in sealing seat, is provided with some oil outlets bottom annular oil groove.
The beneficial effects of the utility model are: two annular grooves on the utility model aperture inwall have the effect gathering dust, along with increasing of dust accumulation, the dust that can intercept plasticizing apparatus endoparticle larger enters mesopore from aperture, gas seal then can take the dust entering mesopore out of sealing seat otherwise processed, thus efficiently solve plasticizing apparatus dust and to leak the problem of befouling environment, simultaneously, the high velocity air flowing through transmission shaft can also reduce the temperature of transmission shaft, improve the lubrication environment of outside framework oil seal assembly, extend the life-span of outside framework oil seal assembly.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. plasticizing apparatus; 2. sealing seat; 3. transmission shaft; 4. annular groove; 5. annular space; 6. back-up ring; 7. oil storage ring; 8. Gask-O-Seal; 9. annular oil groove; 10. oil outlet.
Embodiment
By reference to the accompanying drawings the utility model is further described now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of axle head gas-tight sealing as shown in Figure 1, comprise the sealing seat 2 be fixed on plasticizing apparatus 1, transmission shaft 3 is equipped with in sealing seat 2, transmission shaft 3 is by being fixed on the bearing support rotational support on plasticizing apparatus 1, the step hole wearing transmission shaft 3 is provided with in described sealing seat 2, step hole comprises the aperture arranged from inside to outside successively, mesopore, macropore, aperture inwall is provided with two annular grooves 4, outside framework oil seal assembly is provided with between macropore and transmission shaft 3, annular space 5 between mesopore with transmission shaft 3 is connected with the external world with air outlet channel by the intake duct be arranged in sealing seat 2, intake duct is connected with source of the gas by pipeline, air outlet channel is connected with dust processing equipment by pipeline, when the dust produced in plasticizing apparatus 1 enters the annular space 5 mesopore from the gap between aperture and transmission shaft 3, the dust entered in mesopore can be taken away from air outlet channel by the high velocity air being entered mesopore by intake duct, leak to avoid dust.
Described outside framework oil seal assembly is by back-up ring 6 axially locating be arranged on outside macropore, outside framework oil seal assembly comprises three outside framework oil seals, wherein be provided with oil storage ring 7 between a pair outside framework oil seal and another outside framework oil seal, a pair outside framework oil seal is arranged on inside macropore, is provided with Gask-O-Seal 8 between a pair outside framework oil seal.
Described oil storage ring 7 external peripheral surface offers annular oil groove 9, annular oil groove 9 communicates with the in-line (not shown) be arranged in sealing seat 2, some oil outlets 10 are provided with bottom annular oil groove 9, by in-line to oil storage ring 7 oil injecting lubricating outside framework oil seal, the life-span of outside framework oil seal assembly can be extended.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (3)
1. an axle head gas-tight sealing, comprise the sealing seat (2) be fixed on plasticizing apparatus (1), transmission shaft (3) is equipped with in sealing seat (2), transmission shaft (3) is by being fixed on the bearing support rotational support on plasticizing apparatus (1), it is characterized in that: described sealing seat is provided with the step hole wearing transmission shaft (3) in (2), step hole comprises the aperture arranged from inside to outside successively, mesopore, macropore, aperture inwall is provided with two annular grooves (4), the outside framework oil seal assembly be made up of at least one outside framework oil seal is provided with between macropore and transmission shaft (3), annular space (5) between mesopore with transmission shaft (3) is connected with the external world with air outlet channel by the intake duct be arranged in sealing seat (2).
2. axle head gas-tight sealing according to claim 1, it is characterized in that: described outside framework oil seal assembly is by the back-up ring be arranged on outside macropore (6) axially locating, outside framework oil seal assembly comprises three outside framework oil seals, wherein be provided with oil storage ring (7) between a pair outside framework oil seal and another outside framework oil seal, a pair outside framework oil seal is arranged on inside macropore, is provided with Gask-O-Seal (8) between a pair outside framework oil seal.
3. axle head gas-tight sealing according to claim 1, it is characterized in that: described oil storage ring (7) external peripheral surface offers annular oil groove (9), annular oil groove (9) communicates with the in-line be arranged in sealing seat (2), and annular oil groove (9) bottom is provided with some oil outlets (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277375.2U CN204942538U (en) | 2015-04-30 | 2015-04-30 | A kind of axle head gas-tight sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277375.2U CN204942538U (en) | 2015-04-30 | 2015-04-30 | A kind of axle head gas-tight sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942538U true CN204942538U (en) | 2016-01-06 |
Family
ID=55009971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520277375.2U Expired - Fee Related CN204942538U (en) | 2015-04-30 | 2015-04-30 | A kind of axle head gas-tight sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896096A (en) * | 2015-04-30 | 2015-09-09 | 常州协昌橡塑有限公司 | Shaft end gas sealing device |
-
2015
- 2015-04-30 CN CN201520277375.2U patent/CN204942538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896096A (en) * | 2015-04-30 | 2015-09-09 | 常州协昌橡塑有限公司 | Shaft end gas sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160106 Termination date: 20180430 |