CN204396190U - A kind of horizontal type scraper centrifuger rear bearing sealing device - Google Patents
A kind of horizontal type scraper centrifuger rear bearing sealing device Download PDFInfo
- Publication number
- CN204396190U CN204396190U CN201420833085.7U CN201420833085U CN204396190U CN 204396190 U CN204396190 U CN 204396190U CN 201420833085 U CN201420833085 U CN 201420833085U CN 204396190 U CN204396190 U CN 204396190U
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- China
- Prior art keywords
- bearing
- sealing device
- rear bearing
- main shaft
- horizontal type
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a kind of horizontal type scraper centrifuger rear bearing sealing device, comprise main shaft (1), described main shaft (1) is provided with bearing tapered sleeve (2), described bearing tapered sleeve (2) is provided with bearing (3) and locking nut (4), the disc (6) that rear axle housing (5) and one end withstand on locking nut (4) end face is provided with in the rear end of described main shaft (1), axle sleeve (5) is outside equipped with rear bearing gland (7) in the rear, oil resistance chamber, labyrinth (8) is provided with between described disc (6) and rear bearing gland (7), secondary seal mechanism is provided with between described rear bearing gland (7) and rear axle housing (5).It is simple, compact that the utility model has structure, advantage with low cost, adopts it effectively can prevent oil leak, and meanwhile, because sealing device is non-contacting seal, not tool wearing and tearing, avoid replacing, reduce cost.
Description
Technical field
The utility model relates to a kind of horizontal type scraper centrifuger, particularly the centrifugal rear bearing sealing device of a kind of horizontal type scraper.
Background technology
On existing horizontal type scraper centrifuger rear bearing; all adopt the contact based on rubber parts to seal (i.e. oil sealing), feasible although it is so, but due to the linear velocity of centrifuge principal axis rear bearing sealing place very high; after causing sealing; the easy phenomenon occurring to lose efficacy, once seal failure, makes the also corresponding increasing of its oil leak amount; directly affects horizontal type scraper centrifuger and lubricating system is normally run; must replacing be shut down, waste time and energy, also add operating cost.
Utility model content
The purpose of this utility model is just to provide a kind of horizontal type scraper centrifuger rear bearing sealing device that effectively can carry out sealing.
The purpose of this utility model is realized by such technical scheme, a kind of horizontal type scraper centrifuger rear bearing sealing device, comprise main shaft, described main shaft is provided with bearing tapered sleeve, described bearing tapered sleeve is provided with bearing and locking nut, the disc that rear axle housing and one end withstand on locking nut end face is provided with in the rear end of described main shaft, axle sleeve is outside equipped with rear bearing gland in the rear, be provided with oil resistance chamber, labyrinth between described disc and rear bearing gland, between described rear bearing gland and rear axle housing, be provided with secondary seal mechanism.
Further, the lower surface of bearing gland is provided with thread groove in the rear, and on the outer wall of axle sleeve in the rear and corresponding thread groove is provided with annular groove, described thread groove and described annular groove form secondary seal mechanism.
In order to prevent oil leak further, be provided with spill port in the rear in axle sleeve, the two ends of described spill port are communicated with oil resistance chamber, labyrinth with annular groove respectively.
Owing to have employed technique scheme, it is simple, compact that the utility model has structure, advantage with low cost, adopt it effectively can prevent oil leak, meanwhile, because sealing device is non-contacting seal, not tool wearing and tearing, avoid replacing, reduce cost.
Accompanying drawing explanation
Accompanying drawing of the present utility model is described as follows:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A portion zoomed-in view in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail; but the utility model is not limited to these embodiments; any improvement or alternative on the present embodiment essence spirit, still belongs to the utility model claim scope required for protection.
Embodiment 1: as shown in Figure 1, 2, a kind of horizontal type scraper centrifuger rear bearing sealing device, comprise main shaft 1, described main shaft 1 is provided with bearing tapered sleeve 2, described bearing tapered sleeve 2 is provided with bearing 3 and locking nut 4, the disc 6 that rear axle housing 5 and one end withstand on locking nut 4 end face is provided with in the rear end of described main shaft 1, axle sleeve 5 is outside equipped with rear bearing gland 7 in the rear, be provided with oil resistance chamber, labyrinth 8 between described disc 6 and rear bearing gland 7, between described rear bearing gland 7 and rear axle housing 5, be provided with secondary seal mechanism.
Further describe, the lower surface of bearing gland 7 is provided with thread groove 9 in the rear, and on the outer wall of axle sleeve 5 in the rear and corresponding thread groove 9 is provided with annular groove 10, described thread groove 9 forms secondary seal mechanism with described annular groove 10.
In the utility model, during horizontal type scraper centrifuger work, most of lubricating oil, after the labyrinth oil pocket 8 that disc and rear bearing gland are formed stops, blocks by the lubricating oil of bearing; The thread groove 9 that the lubricating oil passed through on a small quantity is formed through rear bearing gland 7 and rear axle housing 5 and annular groove 10 seal, after again stopping, thus the leakage of thorough solution lubricating oil.
Further, be provided with spill port 11 in the rear in axle sleeve 5, the two ends of described spill port 11 are communicated with oil resistance chamber, labyrinth 8 with annular groove 10 respectively.When a small amount of lubricating oil is deposited in after in annular groove 10, in order to Leakage prevention, lubricating oil is got back in labyrinth oil pocket 8 by spill port 11, prevents leakage.
Claims (3)
1. a horizontal type scraper centrifuger rear bearing sealing device, comprise main shaft (1), described main shaft (1) is provided with bearing tapered sleeve (2), described bearing tapered sleeve (2) is provided with bearing (3) and locking nut (4), it is characterized in that: be provided with the disc (6) that rear axle housing (5) and one end withstand on locking nut (4) end face in the rear end of described main shaft (1), axle sleeve (5) is outside equipped with rear bearing gland (7) in the rear, oil resistance chamber, labyrinth (8) is provided with between described disc (6) and rear bearing gland (7), secondary seal mechanism is provided with between described rear bearing gland (7) and rear axle housing (5).
2. horizontal type scraper centrifuger rear bearing sealing device as claimed in claim 1, it is characterized in that: the lower surface of bearing gland (7) is provided with thread groove (9) in the rear, on the outer wall of axle sleeve (5) in the rear and corresponding thread groove (9) is provided with annular groove (10), described thread groove (9) and described annular groove (10) form secondary seal mechanism.
3. horizontal type scraper centrifuger rear bearing sealing device as claimed in claim 2, it is characterized in that: be provided with spill port (11) in axle sleeve (5) in the rear, the two ends of described spill port (11) are communicated with oil resistance chamber, labyrinth (8) with annular groove (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833085.7U CN204396190U (en) | 2014-12-25 | 2014-12-25 | A kind of horizontal type scraper centrifuger rear bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833085.7U CN204396190U (en) | 2014-12-25 | 2014-12-25 | A kind of horizontal type scraper centrifuger rear bearing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204396190U true CN204396190U (en) | 2015-06-17 |
Family
ID=53420090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833085.7U Expired - Fee Related CN204396190U (en) | 2014-12-25 | 2014-12-25 | A kind of horizontal type scraper centrifuger rear bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204396190U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107638A (en) * | 2015-08-27 | 2015-12-02 | 张家港市中南化工机械有限公司 | Horizontal type scraper discharging centrifugal machine |
| CN107448610A (en) * | 2017-08-10 | 2017-12-08 | 天津市迎大华食品机械制造有限公司 | Chopping knife main shaft sealing construction |
| CN110425225A (en) * | 2019-09-02 | 2019-11-08 | 郑州机械研究所有限公司 | A kind of overhanging rotary shaft non-contact seal structure |
| CN110762222A (en) * | 2019-11-12 | 2020-02-07 | 江苏赛德力制药机械制造有限公司 | Spindle sealing device of horizontal centrifuge |
-
2014
- 2014-12-25 CN CN201420833085.7U patent/CN204396190U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107638A (en) * | 2015-08-27 | 2015-12-02 | 张家港市中南化工机械有限公司 | Horizontal type scraper discharging centrifugal machine |
| CN107448610A (en) * | 2017-08-10 | 2017-12-08 | 天津市迎大华食品机械制造有限公司 | Chopping knife main shaft sealing construction |
| CN110425225A (en) * | 2019-09-02 | 2019-11-08 | 郑州机械研究所有限公司 | A kind of overhanging rotary shaft non-contact seal structure |
| CN110762222A (en) * | 2019-11-12 | 2020-02-07 | 江苏赛德力制药机械制造有限公司 | Spindle sealing device of horizontal centrifuge |
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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: 20150617 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |