CN204403381U - Dry cutting gear-hobbing machine worktable sealing configuration - Google Patents
Dry cutting gear-hobbing machine worktable sealing configuration Download PDFInfo
- Publication number
- CN204403381U CN204403381U CN201420834845.6U CN201420834845U CN204403381U CN 204403381 U CN204403381 U CN 204403381U CN 201420834845 U CN201420834845 U CN 201420834845U CN 204403381 U CN204403381 U CN 204403381U
- Authority
- CN
- China
- Prior art keywords
- worktable
- hobbing machine
- cutting gear
- dry cutting
- end cap
- 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 discloses a kind of dry cutting gear-hobbing machine worktable sealing configuration, comprise the seal groove be arranged between worktable and end cap, seal ring is provided with in seal groove, the inner circle wall of end cap is provided with and rounds and the annular air inlet duct communicated with seal groove, end cap is provided with the inlet hole communicated with annular air inlet duct, and seal ring is provided with and extends and upturned sealing lip along the radially outer direction of worktable.By arranging sealing lip on seal ring, when dry cutting gear-hobbing machine is started shooting, ventilated in annular air inlet duct by inlet hole, gas leads to seal groove through annular air inlet duct, sealing lip is depressed under the influence of air pressure, make the matching relationship between its with worktable be contactless cooperation, effectively can prevent heating; When dry cutting gear-hobbing machine accidentally shut down stop the supple of gas or steam time or inlet hole die suddenly time, under the effect of negative pressure, sealing lip is upturned and coordinates with the Contact of worktable, can prevent negative pressure from sucking impurity, avoid bearing contaminated.
Description
Technical field
The utility model belongs to technical field of mechanical, is specifically related to a kind of sealing configuration of dry cutting gear-hobbing machine worktable.
Background technique
Existing sealing configuration mainly contains two kinds, and one is contact type sealing structure, and another kind is non-contacting sealing structure.Because the worktable of dry cutting gear-hobbing machine operationally has rotation motion relative to end cap, therefore, according to contact type sealing structure, then can cause a large amount of frictional heatings.According to non-contacting sealing structure, when dry cutting gear-hobbing machine accidentally shut down stop the supple of gas or steam time, its inside easily forms negative pressure, then foreign matter can be caused to be inhaled into from non-contacting sealing structure, and bearing is easily stuck.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of dry cutting gear-hobbing machine worktable sealing configuration, can not only meet seal request, and can guarantee to suck foreign matter.
For achieving the above object, the utility model provides following technological scheme:
A kind of dry cutting gear-hobbing machine worktable sealing configuration, comprise the seal groove be arranged between worktable and end cap, seal ring is provided with in described seal groove, the inner circle wall of described end cap is provided with and rounds and the annular air inlet duct communicated with described seal groove, described end cap is provided with the inlet hole communicated with described annular air inlet duct, and described seal ring is provided with and extends and upturned sealing lip along the radially outer direction of described worktable.
Further, described inlet hole is arranged on the tangential direction of described annular air inlet duct.
Further, Spielpassung between the bottom surface of described worktable and the upper-end surface of described end cap.
Further, Spielpassung between the axial periphery wall of described worktable and the inner circle wall of described end cap.
Further, described sealing lip contacts with the bottom surface of described worktable when free state and coordinates.
The beneficial effects of the utility model are:
Dry cutting gear-hobbing machine worktable sealing configuration of the present utility model, by arranging sealing lip on seal ring, when dry cutting gear-hobbing machine is started shooting, ventilated in annular air inlet duct by inlet hole, gas leads to seal groove through annular air inlet duct, sealing lip is depressed under the influence of air pressure, makes the matching relationship between its with worktable be contactless cooperation, effectively can prevent heating; When dry cutting gear-hobbing machine accidentally shut down stop the supple of gas or steam time or inlet hole die suddenly time, under the effect of negative pressure, sealing lip is upturned and coordinates with the Contact of worktable, can prevent negative pressure from sucking impurity, avoid bearing contaminated.
Accompanying drawing explanation
In order to make the purpose of this utility model, technological scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of the utility model dry cutting gear-hobbing machine worktable sealing configuration embodiment;
Fig. 2 is the structural representation of end cap;
Fig. 3 is the structural representation of seal ring when coordinating with worktable is contactless;
Fig. 4 is the sectional view of seal ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, be the structural representation of the utility model dry cutting gear-hobbing machine worktable sealing configuration embodiment.The dry cutting gear-hobbing machine worktable sealing configuration of the present embodiment, comprise the seal groove 3 be arranged between worktable 1 and end cap 2, seal ring 4 is provided with in seal groove 3, the inner circle wall of end cap 2 is provided with and rounds and the annular air inlet duct 5 communicated with seal groove 3, end cap 2 is provided with the inlet hole 6 communicated with annular air inlet duct 5, and seal ring 4 is provided with and extends and upturned sealing lip 4a along the radially outer direction of worktable 1.Preferably, sealing lip 4a contacts with the bottom surface of worktable 1 when free state and coordinates, and so, can guarantee the contact seal under the state of stopping the supple of gas or steam, and ensures that sealing configuration is effective all the time, guarantees that impurity can not enter in sealing configuration.
Further, the inlet hole 6 of the present embodiment is arranged on the tangential direction of annular air inlet duct 5, and air-flow can be made to be uniformly distributed in annular air inlet duct 5, namely ensures that seal ring 4 can not contact with worktable 1 and coordinates.
Further, Spielpassung between the bottom surface of the worktable 1 of the present embodiment and the upper-end surface of end cap 2, Spielpassung between the axial periphery wall of worktable 1 and the inner circle wall of end cap 2, annular air inlet duct 5 is arranged on the inwall of end cap 2, so, by the matching gap between worktable 1 and end cap 2, annular air inlet duct 5 can communicate with seal groove 3, and air-flow is discharged by the matching gap between the bottom surface of worktable 1 and the upper-end surface of end cap 2, guarantee that impurity can not enter in sealing configuration.
The dry cutting gear-hobbing machine worktable sealing configuration of the present embodiment, by arranging sealing lip 4a on seal ring 4, when dry cutting gear-hobbing machine is started shooting, ventilated in annular air inlet duct 5 by inlet hole 6, gas leads to seal groove 3 through annular air inlet duct 5, sealing lip 4a is depressed under the influence of air pressure, makes the matching relationship between its with worktable 1 be contactless cooperation, effectively can prevent heating; When dry cutting gear-hobbing machine accidentally shut down stop the supple of gas or steam time or inlet hole die suddenly time, under the effect of negative pressure, sealing lip 4a is upturned and coordinates with the Contact of worktable 1, can prevent negative pressure from sucking impurity, avoid bearing contaminated.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (5)
1. a dry cutting gear-hobbing machine worktable sealing configuration, it is characterized in that: comprise the seal groove be arranged between worktable and end cap, seal ring is provided with in described seal groove, the inner circle wall of described end cap is provided with and rounds and the annular air inlet duct communicated with described seal groove, described end cap is provided with the inlet hole communicated with described annular air inlet duct, and described seal ring is provided with and extends and upturned sealing lip along the radially outer direction of described worktable.
2. dry cutting gear-hobbing machine worktable sealing configuration according to claim 1, is characterized in that: described inlet hole is arranged on the tangential direction of described annular air inlet duct.
3. dry cutting gear-hobbing machine worktable sealing configuration according to claim 1, is characterized in that: Spielpassung between the bottom surface of described worktable and the upper-end surface of described end cap.
4. dry cutting gear-hobbing machine worktable sealing configuration according to claim 3, is characterized in that: Spielpassung between the axial periphery wall of described worktable and the inner circle wall of described end cap.
5. the dry cutting gear-hobbing machine worktable sealing configuration according to any one of claim 1-4, is characterized in that: described sealing lip contacts with the bottom surface of described worktable when free state and coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834845.6U CN204403381U (en) | 2014-12-25 | 2014-12-25 | Dry cutting gear-hobbing machine worktable sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834845.6U CN204403381U (en) | 2014-12-25 | 2014-12-25 | Dry cutting gear-hobbing machine worktable sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403381U true CN204403381U (en) | 2015-06-17 |
Family
ID=53427241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834845.6U Expired - Fee Related CN204403381U (en) | 2014-12-25 | 2014-12-25 | Dry cutting gear-hobbing machine worktable sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995891A (en) * | 2022-05-31 | 2022-09-02 | 维沃移动通信有限公司 | Non-contact starting method and device |
-
2014
- 2014-12-25 CN CN201420834845.6U patent/CN204403381U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995891A (en) * | 2022-05-31 | 2022-09-02 | 维沃移动通信有限公司 | Non-contact starting method and 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: 20150617 Termination date: 20161225 |