CN112577059A - Underwater inner guide wheel for scraper slag extractor - Google Patents
Underwater inner guide wheel for scraper slag extractor Download PDFInfo
- Publication number
- CN112577059A CN112577059A CN202011462085.7A CN202011462085A CN112577059A CN 112577059 A CN112577059 A CN 112577059A CN 202011462085 A CN202011462085 A CN 202011462085A CN 112577059 A CN112577059 A CN 112577059A
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- CN
- China
- Prior art keywords
- seal
- bearing
- bearing seat
- guide wheel
- ring
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
The application discloses an underwater inner guide wheel for a scraper slag extractor, which comprises a bearing seat, a bearing, a guide wheel and a rotating shaft, wherein the bearing is arranged in the bearing seat; a clean water seal is arranged at the position, close to the front end, of the bearing seat; a first framework oil seal and an O-shaped sealing ring are sequentially arranged on the inner wall of the bearing seat towards the front end direction; the first framework oil seal is arranged close to the bearing; a grease seal is arranged between the O-shaped sealing ring and the mechanical seal; a sewage outflow channel is arranged between the first framework oil seal and the O-shaped sealing ring. From this, form the multiple seal through mechanical seal, clear water seal, grease seal, skeleton oil blanket and O shape sealing washer, complement each other again between the multiple seal, improved the leakproofness of equipment greatly, can prevent effectively that sewage or debris from getting into in the bearing, reduce the fault rate, prolong the life of equipment.
Description
Technical Field
The invention relates to the field of environment-friendly equipment, in particular to an underwater inner guide wheel for a scraper slag remover.
Background
The submerged scraper slag conveyor used in the coal powder furnace power plant needs to use an underwater guide wheel because a chain needs to run underwater and has an inflection point in the running process.
Because the slag conveyor has a severe working environment, more impurities and mortar are in water, the abrasion to a sealing element is severe, the rotation of the shaft is added, and the sealing service life is short. After the sealing is failed, water enters the bearing, grey water leaks out, the safety and the environment of equipment are affected, and the service life of the equipment is short.
Disclosure of Invention
The invention aims to provide an underwater inner guide wheel for a scraper slag extractor, which solves one or more of the problems in the prior art.
According to one aspect of the invention, the underwater inner guide wheel for the scraper slag extractor comprises a bearing seat, a bearing, a guide wheel and a rotating shaft, wherein the bearing is arranged in the bearing seat; a clean water seal is arranged at the position, close to the front end, of the bearing seat; a first framework oil seal and an O-shaped sealing ring are sequentially arranged on the inner wall of the bearing seat towards the front end direction; the first framework oil seal is arranged close to the bearing; a grease seal is arranged between the O-shaped sealing ring and the mechanical seal; a sewage outflow channel is arranged between the first framework oil seal and the O-shaped sealing ring.
From this, form the multiple seal through mechanical seal, clear water seal, grease seal, skeleton oil blanket and O shape sealing washer, complement each other again between the multiple seal, improved the leakproofness of equipment greatly, can prevent effectively that sewage or debris from getting into in the bearing, reduce the fault rate, prolong the life of equipment.
In some embodiments: the mechanical seal comprises a seal movable ring and a seal static ring, the seal movable ring is fixed on the rotating shaft, the seal static ring is arranged on the bearing seat, and the seal static ring is in seal fit with the seal movable ring. Therefore, sewage or sundries can be effectively prevented from entering the bearing.
In some embodiments: a spring seat and a spring are arranged in the bearing seat, one end of the spring is connected with the spring seat, and the other end of the spring is connected with the sealing static ring. Therefore, the abrasion compensation of the static sealing ring and the dynamic sealing ring is realized, the sealing performance is improved, and the service life is prolonged.
In some embodiments: the outer wall of the front end of the bearing seat is provided with a sealed clean water joint, and clean water enters between the mechanical seal and the bearing seat from the sealed clean water joint and is flushed out from between the seal movable ring and the bearing seat. Therefore, the clean water with pressure rushes out from the space between the sealing movable ring and the bearing seat, so that sewage or sundries can be effectively prevented from entering the bearing, and the sealing performance is improved.
In some embodiments: the static sealing ring and the dynamic sealing ring are both made of graphite impregnated furan resin.
In some embodiments: the grease seal comprises a spiral cover type oil cup arranged on the bearing seat. Therefore, grease can be injected, grease sealing in the bearing is realized, and the sealing performance is improved.
In some embodiments: the rear end of the bearing seat is provided with a bearing cover, and the inner ring of the bearing cover is provided with a second framework oil seal. This improves the sealing performance of the bearing.
In some embodiments: and a first thrust washer is arranged on the outer side of the sealing movable ring.
In some embodiments: the rear end of the rotating shaft is provided with a second thrust washer.
Drawings
FIG. 1 is a schematic structural view of an underwater inner guide wheel for a scraper slag extractor.
Detailed Description
The present invention will be described in further detail with reference to the following description of the drawings.
As shown in figure 1, the underwater inner guide wheel for the scraper slag extractor comprises a bearing seat 1, a bearing 2, a guide wheel 3 and a rotating shaft 4, wherein the bearing 2 is fixedly arranged in the bearing seat 1, the rotating shaft 4 is assembled on an inner ring of the bearing 2, and the guide wheel 3 is in key connection with the end part of the rotating shaft 4. One end of the guide wheel 3 is a front end, and the other end is a rear end. The front end of the bearing seat 1 is provided with a mechanical seal 5; a clean water seal 6 is arranged at the front end of the bearing seat 1; a first framework oil seal 7 and an O-shaped sealing ring 8 are sequentially and fixedly arranged on the inner wall of the bearing seat 1 towards the front end direction; the first framework oil seal 7 is arranged close to the bearing 2; a grease seal 8 is arranged between the O-shaped seal ring 8 and the mechanical seal 5; a sewage outflow channel 9 is arranged between the first framework oil seal 7 and the O-shaped sealing ring 8, the sewage outflow channel 9 is arranged in the side wall of the bearing seat 1, and a screw plug 21 is arranged at the outlet of the sewage outflow channel 9.
From this, form the multiple seal through mechanical seal, clear water seal, grease seal, skeleton oil blanket and O shape sealing washer, complement each other again between the multiple seal, improved the leakproofness of equipment greatly, can prevent effectively that sewage or debris from getting into in the bearing, reduce the fault rate, prolong the life of equipment.
Wherein, mechanical seal 5 includes sealed rotating ring 10 and sealed quiet ring 11, and pivot 4 is located to sealed rotating ring 10 fixed cover to rotate along with pivot 4, sealed quiet ring 11 fixed mounting is in bearing frame 1 front end department, sealed cooperation between sealed quiet ring 11 and the sealed rotating ring 10.
Be equipped with spring holder 12 and spring 13 in the bearing frame 1, spring holder 12 digs the front end of locating bearing frame 1, and spring 13 one end butt is in the bottom of spring holder 12, and the other end is connected in sealed stationary ring 11. Therefore, the abrasion compensation of the static sealing ring and the dynamic sealing ring is realized, the sealing performance is improved, and the service life is prolonged.
The outer wall of the front end of the bearing seat 1 is fixedly provided with a sealed clean water joint 14, and pressure clean water enters between the mechanical seal and the bearing seat 1 from the sealed clean water joint 14 and is flushed out from between the seal movable ring 10 and the bearing seat 1. Therefore, the clean water with pressure rushes out from the space between the sealing movable ring and the bearing seat, so that sewage or sundries can be effectively prevented from entering the bearing, and the sealing performance is improved.
The static sealing ring 11 and the dynamic sealing ring 10 are both made of graphite impregnated furan resin.
The grease seal 8 comprises a screw-on oil cup 15 provided on the bearing housing 1. Therefore, grease can be injected into the bearing seat for sealing.
The rear end of the bearing seat 1 is fixedly provided with a bearing cover 16, and the inner ring of the bearing cover 16 is provided with a second framework oil seal 17. Therefore, the sealing performance of the rear end of the bearing seat is improved.
A first thrust washer 18 is fixedly mounted on the outer side of the movable sealing ring 10.
A second thrust washer 19 is fixedly mounted at the rear end of the rotating shaft 4, and the second thrust washer 19 is positioned in the bearing seat 1 and close to the bearing cover 16.
The above is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, several similar modifications and improvements can be made without departing from the inventive concept of the present invention, and these should also be considered as within the protection scope of the present invention.
Claims (9)
1. An underwater inner guide wheel for a scraper slag extractor comprises a bearing seat (1), a bearing (2), a guide wheel (3) and a rotating shaft (4), wherein the bearing (2) is arranged in the bearing seat (1), the rotating shaft (4) is assembled on the bearing (2), the guide wheel (3) is arranged on the rotating shaft (4),
the front end of the bearing seat (1) is provided with a mechanical seal (5);
a clean water seal (6) is arranged at the position, close to the front end, of the bearing seat (1);
a first framework oil seal (7) and an O-shaped sealing ring (8) are sequentially arranged on the inner wall of the bearing seat (1) towards the front end direction; the first framework oil seal (7) is arranged close to the bearing (2);
a grease seal (20) is arranged between the O-shaped sealing ring (8) and the mechanical seal (5);
and a sewage outflow channel (9) is arranged between the first framework oil seal (7) and the O-shaped sealing ring (8).
2. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 1, wherein: the mechanical seal (5) comprises a seal moving ring (10) and a seal static ring (11), the seal moving ring (10) is fixed on the rotating shaft (4), the seal static ring (11) is arranged on the bearing seat (1), and the seal static ring (11) is in sealing fit with the seal moving ring (10).
3. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 2, wherein: a spring seat (12) and a spring (13) are arranged in the bearing seat (1), one end of the spring (13) is connected with the spring seat (12), and the other end of the spring (13) is connected with the static sealing ring (11).
4. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 2, wherein: the outer wall of the front end of the bearing seat (1) is provided with a sealed clean water joint (14), and clean water enters between the mechanical seal and the bearing seat (1) from the sealed clean water joint (14) and is flushed out from between the seal movable ring (10) and the bearing seat (1).
5. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 2, wherein: the static sealing ring (11) and the dynamic sealing ring (10) are both made of graphite impregnated furan resin.
6. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 1, wherein: the grease seal (8) comprises a spiral cover type oil cup (15) arranged on the bearing seat (1).
7. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 1, wherein: the rear end of the bearing seat (1) is provided with a bearing cover (16), and the inner ring of the bearing cover (16) is provided with a second framework oil seal (17).
8. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 2, wherein: and a first thrust washer (18) is arranged on the outer side of the sealing movable ring (10).
9. The underwater internal guide wheel for the scraper slag extractor as claimed in claim 1, wherein: and a second thrust washer (19) is arranged at the rear end of the rotating shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462085.7A CN112577059A (en) | 2020-12-11 | 2020-12-11 | Underwater inner guide wheel for scraper slag extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462085.7A CN112577059A (en) | 2020-12-11 | 2020-12-11 | Underwater inner guide wheel for scraper slag extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577059A true CN112577059A (en) | 2021-03-30 |
Family
ID=75132285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011462085.7A Withdrawn CN112577059A (en) | 2020-12-11 | 2020-12-11 | Underwater inner guide wheel for scraper slag extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577059A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337523A (en) * | 1999-05-25 | 2000-12-05 | Tenkou:Kk | Water-sealing device for submerged bearing |
| CN2913748Y (en) * | 2004-12-21 | 2007-06-20 | 浙江东方气动机械有限公司 | Oil resistant front end plate device |
| JP2009115138A (en) * | 2007-11-02 | 2009-05-28 | Nsk Ltd | Seal device |
| CN203933224U (en) * | 2014-05-30 | 2014-11-05 | 广东零壹工业技术有限公司 | A kind of combined sealing structure |
| CN203949192U (en) * | 2014-07-03 | 2014-11-19 | 青岛正大正电力环保设备有限公司 | A kind of external mechanical seal inner guide pulley |
| CN205806486U (en) * | 2016-07-04 | 2016-12-14 | 王伟平 | A kind of mechanical shaft seal |
| CN207610225U (en) * | 2017-11-27 | 2018-07-13 | 贵州鸭溪发电有限公司 | A kind of waterproof labyrinth seal type dragveyer inner guide pulley |
-
2020
- 2020-12-11 CN CN202011462085.7A patent/CN112577059A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337523A (en) * | 1999-05-25 | 2000-12-05 | Tenkou:Kk | Water-sealing device for submerged bearing |
| CN2913748Y (en) * | 2004-12-21 | 2007-06-20 | 浙江东方气动机械有限公司 | Oil resistant front end plate device |
| JP2009115138A (en) * | 2007-11-02 | 2009-05-28 | Nsk Ltd | Seal device |
| CN203933224U (en) * | 2014-05-30 | 2014-11-05 | 广东零壹工业技术有限公司 | A kind of combined sealing structure |
| CN203949192U (en) * | 2014-07-03 | 2014-11-19 | 青岛正大正电力环保设备有限公司 | A kind of external mechanical seal inner guide pulley |
| CN205806486U (en) * | 2016-07-04 | 2016-12-14 | 王伟平 | A kind of mechanical shaft seal |
| CN207610225U (en) * | 2017-11-27 | 2018-07-13 | 贵州鸭溪发电有限公司 | A kind of waterproof labyrinth seal type dragveyer inner guide pulley |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210330 |
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| WW01 | Invention patent application withdrawn after publication |