CN203009843U - Sealing mechanism for low speed rotating shaft - Google Patents
Sealing mechanism for low speed rotating shaft Download PDFInfo
- Publication number
- CN203009843U CN203009843U CN 201320008173 CN201320008173U CN203009843U CN 203009843 U CN203009843 U CN 203009843U CN 201320008173 CN201320008173 CN 201320008173 CN 201320008173 U CN201320008173 U CN 201320008173U CN 203009843 U CN203009843 U CN 203009843U
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- China
- Prior art keywords
- seat
- seal
- sealing seat
- support
- wear ring
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a sealing mechanism for a low speed rotating shaft, which comprises an engine seat and a seal seat, wherein the low speed rotating shaft penetrates through the engine seat and the seal seat; an annular engine seat seal groove and an annular movable wear ring groove are arranged in the engine seat; an annular seal seat seal groove and a seal seat convex ring are arranged on the seal seat; a movable wear ring is arranged in the movable wear ring groove, and the other end of the movable wear ring stretches into the seal seat seal groove; a first pressure spring is arranged between the movable wear ring and the bottom of the seal seat seal groove; the seal seat convex ring is arranged in the engine seat seal groove; and a second pressure spring is arranged between the seal seat convex ring and the bottom of the engine seat seal groove. The sealing mechanism has the characteristic of flexible self-adjusting seal, has low requirement for coaxiality, excellent sealing effect and simple structure, is easy to produce, use and maintain, is low in cost, and can effectively prevent internal fluid from escaping or stop external fluid from entering the engine seat.
Description
Technical field
The utility model relates to a kind of low-speed rotary shaft sealing mechanism, is mainly used in preventing inner gas leak or stops outside air to enter, and also can be used for the sealing of other media such as liquid.
Background technique
Existing low-speed rotary shaft comprises support and sealing seat with sealing mechanism, and low-speed rotary shaft passes described support and sealing seat, is provided with axial seal O type circle between low-speed rotary shaft and support, also is provided with axial seal O type circle between low-speed rotary shaft and described sealing seat.Existing seal form relies on sealing O type circle isolation base inner and base outer, has the relatively poor defective of sealing effect.
The model utility content
The purpose of this utility model is to provide a kind of sealing effect low-speed rotary shaft sealing mechanism preferably.
For achieving the above object, low-speed rotary shaft of the present utility model comprises support and sealing seat with sealing mechanism, low-speed rotary shaft passes described support and sealing seat, described support is provided with the support seal groove of annular and the movable wear-resisting annular groove of annular, and described sealing seat is provided with the sealing seat seal groove of annular and is provided with the sealing seat bulge loop; Be provided with movable wear ring in the wear-resisting annular groove of described activity, the other end of movable wear ring stretches in described sealing seat seal groove, is provided with the first stage clip between the bottom land of movable wear ring and sealing seat seal groove; Described sealing seat bulge loop is plugged in described support seal groove, has been installed with the second stage clip between the bottom land of sealing seat bulge loop and support seal groove.
The bottom land of the wear-resisting annular groove of described activity is provided with the support wear ring, support wear ring and described movable wear ring top press fit.
The end of described sealing seat bulge loop is provided with the bulge loop wear ring, and the sealing seat bulge loop pushes up pressure mutually by its bulge loop wear ring and described the second stage clip.
Be provided with labyrinth seal structure between described support and described sealing seat, labyrinth seal structure is included in annular labyrinth seal groove and the labyrinth bulge loop of corresponding setting between support and sealing seat, the labyrinth bulge loop stretch in the labyrinth seal groove and with labyrinth seal groove Spielpassung.
Be provided with the first sealing O type circle between described low-speed rotary shaft and described support, be provided with the second sealing O type circle between described low-speed rotary shaft and described sealing seat.
The utility model adopts the Multiple Combination sealing, and various sealing configurations can use according to seal request combination in any, collocation.Can fill suitable lubricant grease in seal chamber not at the same level, further improve sealing effect.The utlity model has the characteristics of flexible self-regulation sealing, low to the coaxality requirement, good sealing effect, simple in structure, be easy to manufacturing, operation and maintenance, cost is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, low-speed rotary shaft of the present utility model comprises support 1 and sealing seat 2 with sealing mechanism, low-speed rotary shaft 14 passes described support 1 and sealing seat 2, described support 1 is provided with the support seal groove 3 of annular and the movable wear-resisting annular groove 4 of annular, and described sealing seat 2 is provided with the sealing seat seal groove 5 of annular and is provided with sealing seat bulge loop 6; Be provided with movable wear ring 7 in the wear-resisting annular groove 4 of described activity, the other end of movable wear ring 7 stretches in described sealing seat seal groove 5, is provided with the first stage clip 8 between the bottom land of movable wear ring 7 and sealing seat seal groove 5; Described sealing seat bulge loop 6 is plugged in described support seal groove 3, has been installed with the second stage clip 9 between the bottom land of sealing seat bulge loop 6 and support seal groove 3.The bottom land of the wear-resisting annular groove 4 of described activity is provided with support wear ring 10, support wear ring 10 and described movable wear ring 7 top press fits.
The end of described sealing seat bulge loop 6 is provided with bulge loop wear ring 11, and sealing seat bulge loop 6 pushes up pressure by its bulge loop wear ring 11 mutually with described the second stage clip 9.Described movable wear ring 7, bulge loop wear ring 11 and support wear ring 10 are made by MC nylon or polytetrafluoro or other high-abrasive material.
Be provided with labyrinth seal structure between described support 1 and described sealing seat 2, labyrinth seal structure is included in annular labyrinth seal groove 12 and the labyrinth bulge loop 13 of corresponding setting between support 1 and sealing seat 2, labyrinth bulge loop 13 stretch in labyrinth seal groove 12 and with labyrinth seal groove 12 Spielpassung.Be provided with the first axial seal O type circle 15 between described low-speed rotary shaft 14 and described support 1, be provided with the second axial seal O type circle 16 between described low-speed rotary shaft 14 and described sealing seat 2.
During use, the first axial seal O type circle 15 and the second axial seal O type circle 16 consist of the first sealing configuration.Labyrinth seal structure consists of the second sealing configuration.Movable wear ring 7, support wear ring 10, movable wear-resisting annular groove 4, sealing seat seal groove 5 and described the first stage clip 8 form three seal structures.Described support seal groove 3, sealing seat bulge loop 6 and the second stage clip 9 form the 4th seal structures.The setting of multiple-sealed structure can guarantee that support 1 is inside and outside mutually isolated, in the situation that exist pressure reduction to guarantee good seal inside and outside support 1, can prevent effectively that internal gas from leaking or stoping extraneous gas to enter support.The utility model adopts the Multiple Combination sealing, and various sealing configurations can use according to seal request combination in any, collocation.Can fill suitable lubricant grease in seal chamber not at the same level, further improve sealing effect.The utlity model has the characteristics of flexible self-regulation sealing, low to the coaxality requirement, good sealing effect, simple in structure, be easy to manufacturing, operation and maintenance, cost is low.Certainly, the utility model not only can be realized good hermetic seal, also can realize good water-stop, is equally applicable to the sealing under the liquid medium operating mode, makes the inside and outside pressure difference of support can not affect normal operation.
The present embodiment is not that shape of the present utility model, material, structure etc. are done any pro forma restriction; every foundation technical spirit of the present utility model all belongs to the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment does.
Claims (5)
1. the low-speed rotary shaft sealing mechanism, comprise support and sealing seat, and low-speed rotary shaft passes described support and sealing seat, it is characterized in that:
Described support is provided with the support seal groove of annular and the movable wear-resisting annular groove of annular, and described sealing seat is provided with the sealing seat seal groove of annular and is provided with the sealing seat bulge loop;
Be provided with movable wear ring in the wear-resisting annular groove of described activity, the other end of movable wear ring stretches in described sealing seat seal groove, is provided with the first stage clip between the bottom land of movable wear ring and sealing seat seal groove;
Described sealing seat bulge loop is plugged in described support seal groove, has been installed with the second stage clip between the bottom land of sealing seat bulge loop and support seal groove.
2. low-speed rotary shaft sealing mechanism according to claim 1, it is characterized in that: the bottom land of the wear-resisting annular groove of described activity is provided with the support wear ring, support wear ring and described movable wear ring top press fit.
3. low-speed rotary shaft sealing mechanism according to claim 2, it is characterized in that: the end of described sealing seat bulge loop is provided with the bulge loop wear ring, and the sealing seat bulge loop pushes up pressure mutually by its bulge loop wear ring and described the second stage clip.
4. the described low-speed rotary shaft sealing mechanism of any one according to claim 1 to 3, it is characterized in that: be provided with labyrinth seal structure between described support and described sealing seat, labyrinth seal structure is included in annular labyrinth seal groove and the labyrinth bulge loop of corresponding setting between support and sealing seat, the labyrinth bulge loop stretch in the labyrinth seal groove and with labyrinth seal groove Spielpassung.
5. the described low-speed rotary shaft sealing mechanism of any one according to claim 1 to 3, it is characterized in that: be provided with the first sealing O type circle between described low-speed rotary shaft and described support, be provided with the second sealing O type circle between described low-speed rotary shaft and described sealing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008173 CN203009843U (en) | 2013-01-08 | 2013-01-08 | Sealing mechanism for low speed rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008173 CN203009843U (en) | 2013-01-08 | 2013-01-08 | Sealing mechanism for low speed rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009843U true CN203009843U (en) | 2013-06-19 |
Family
ID=48601440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320008173 Expired - Fee Related CN203009843U (en) | 2013-01-08 | 2013-01-08 | Sealing mechanism for low speed rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759262A (en) * | 2019-11-28 | 2020-02-07 | 中国船舶重工集团海装风电股份有限公司 | Offshore wind turbine tower foundation platform cantilever crane rotation system sealing device |
-
2013
- 2013-01-08 CN CN 201320008173 patent/CN203009843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759262A (en) * | 2019-11-28 | 2020-02-07 | 中国船舶重工集团海装风电股份有限公司 | Offshore wind turbine tower foundation platform cantilever crane rotation system 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 |
Granted publication date: 20130619 Termination date: 20160108 |