CN215171604U - Lower bearing sealing device of cement vertical mill powder concentrator - Google Patents
Lower bearing sealing device of cement vertical mill powder concentrator Download PDFInfo
- Publication number
- CN215171604U CN215171604U CN202121535081.7U CN202121535081U CN215171604U CN 215171604 U CN215171604 U CN 215171604U CN 202121535081 U CN202121535081 U CN 202121535081U CN 215171604 U CN215171604 U CN 215171604U
- Authority
- CN
- China
- Prior art keywords
- bearing
- end cover
- main shaft
- sealing device
- vertical mill
- 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.)
- Active
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a cement grinds selection powder machine lower part bearing sealing device immediately relates to cement production facility technical field, specifically includes main shaft, bearing frame and half-coupling, the fixed cover of bearing connects on the surface of main shaft, and the fixed cover of bearing frame connects on the surface of bearing, and the bottom fixedly connected with end cover of bearing frame, the top of end cover and the bottom swing joint of bearing, and the inside of end cover is provided with the spacer sleeve, and spacer sleeve fixed connection is on the surface of main shaft, and the side of spacer sleeve is provided with the lip type and seals. Through setting up spacer sleeve, lip type seal, maze and safety cover, reached and sealed the effect of carrying out the separation to the dust through the cubic, solved because this bearing adopts is that lubricating grease is lubricated, bearing upper portion is open space, leads to lubricating grease to hardly get into the packing department of lower part through the bearing, moves a period back, leads to the packing of lower part to damage very easily, and the dust gets into the back in a large number, causes the problem that the bearing damaged very easily.
Description
Technical Field
The utility model relates to a cement production facility specifically is a cement vertical mill selection powder machine lower part bearing sealing device.
Background
The vertical mill powder concentrator is characterized in that the vertical mill powder concentrator cannot be separated in the cement production process, the vertical mill powder concentrator consists of a magic machine and a powder concentrator, the powder concentrator mainly screens and classifies materials after grinding, gas is required to ascend along an air inlet pipe during powder concentration, the gas enters an inner cavity, then a rotational flow space is formed between a Liupan and a rotor blade, the materials are dispersed by air flow, and the air flow is utilized to classify and separate material mixtures under the action of centrifugal force.
The sealing structure of the lower bearing of the original cement vertical mill powder concentrator is a packing seal, because the bearing adopts lubricating grease lubrication, the upper part of the bearing is an open space, the lubricating grease is difficult to enter the packing at the lower part through the bearing, after the bearing operates for a period of time, the packing at the lower part is easily damaged, and after a large amount of dust enters, the bearing is easily damaged, so that the daily use is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cement grinds selection powder machine lower part bearing seal device immediately to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a cement grinds selection powder machine lower part bearing seal device immediately, including main shaft, bearing frame and half-coupling, the fixed cover of bearing connects on the surface of main shaft, the fixed cover of bearing frame connects on the surface of bearing, the bottom fixedly connected with end cover of bearing frame, the top of end cover and the bottom swing joint of bearing, the inside of end cover is provided with the spacer sleeve, spacer sleeve fixed connection is on the surface of main shaft, the side of spacer sleeve is provided with lip type seal, lip type seal swing joint is in the inside of end cover, the bottom swing joint of end cover has fixed cover, be provided with the maze between fixed cover and the end cover, the fixed surface of cup jointing at the main shaft of half-coupling, the inside fixed connection of top and fixed cover of half-coupling, the bottom swing joint of top and spacer sleeve of half-coupling.
As a further aspect of the present invention: the side of fixed cover is provided with the safety cover, and the inner wall of safety cover is close to the position fixedly connected with rubber strip of top, and rubber strip swing joint is on the surface of end cover.
As a further aspect of the present invention: the side of the end cover is provided with an annular groove, and the rubber strip is movably connected inside the annular groove.
As a further aspect of the present invention: the protective cover is annular in shape.
As a further aspect of the present invention: the end cover is fixedly connected with the bearing seat through a fixing bolt.
As a further aspect of the present invention: the number of the lip seals is two.
Compared with the prior art, the beneficial effects of the utility model are that:
through setting up the spacer sleeve, the lip type is sealed, maze and safety cover, the safety cover carries out first sealed between bearing frame and the end cover, make the difficult entering of great dust, then carry out the second through the maze to the position of end cover and bearing frame and seal, increase the entering route of dust through the spacer sleeve at last, then seal once more through the sealed the carrying on of twice lip type, it realizes effectively sealedly to get into, the effect of carrying out the separation through the cubic is sealed to the dust has been reached, it is lubricated to have solved because this bearing adopts lubricating grease, bearing upper portion is open space, lead to lubricating grease hardly to get into the packing department of lower part through the bearing, after operation a period, lead to the lower part packing to damage very easily, the dust gets into the back in a large number, cause the problem of bearing damage very easily.
Drawings
Fig. 1 is a front sectional view of a lower bearing sealing device of a cement vertical mill powder concentrator.
Fig. 2 is an enlarged view of a structure a in fig. 1 of a lower bearing sealing device of a cement vertical mill powder concentrator.
FIG. 3 is a top sectional view of a bearing sealing device at the lower part of a powder concentrator of a cement mill.
As shown in the figure: 1. a main shaft; 2. a bearing; 3. a bearing seat; 4. an end cap; 5. a spacer sleeve; 6. lip-type sealing; 7. fixing a sleeve; 8. a maze; 9. a half coupling; 10. a protective cover; 11. a rubber strip; 12. an annular groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, in the embodiment of the present invention, a lower bearing sealing device for a cement vertical mill powder concentrator comprises a main shaft 1, a bearing 2, a bearing seat 3 and a half-coupling 9, wherein a bearing 2 is fixedly sleeved 7 on the surface of the main shaft 1, a bearing seat 3 is fixedly sleeved 7 on the surface of the bearing 2, an end cover 4 is fixedly connected to the bottom of the bearing seat 3, the end cover 4 is fixedly connected to the bearing seat 3 through a fixing bolt, an annular groove 12 is formed in the side surface of the end cover 4, a rubber strip 11 is movably connected to the inside of the annular groove 12 for movably sealing the connection position, the top of the end cover 4 is movably connected to the bottom of the bearing 2, a spacer 5 is arranged inside the end cover 4 to increase the path for dust to enter, the spacer 5 is fixedly connected to the surface of the main shaft 1, a lip seal 6 is arranged on the side surface of the spacer 5 and is arranged near the top position of the spacer 5, dust is not easy to reach the top after entering from the bottom, the number of the lip seals 6 is two, the sealing performance is greatly improved, the lip seals 6 are movably connected inside the end cover 4, the bottom of the end cover 4 is movably connected with the fixed sleeve 7, the side surface of the fixed sleeve 7 is provided with the protective cover 10, the protective cover 10 is annular, the positions of the fixed sleeve 7 and the end cover 4 are sealed in an annular way, the position of the inner wall of the protective cover 10 close to the top is fixedly connected with a rubber strip 11 to enhance tightness, the rubber strip 11 is movably connected on the surface of the end cover 4, a labyrinth 8 is arranged between the fixed sleeve 7 and the end cover 4, the combination of the concave and convex shapes increases the path of dust, the fixed sleeve 7 of the half coupling 9 is connected on the surface of the main shaft 1, the top of the half coupling 9 is fixedly connected with the inside of the fixed sleeve 7, and the top of the half coupling 9 is movably connected with the bottom of the spacing sleeve 5.
The utility model discloses a theory of operation is:
when using, main shaft 1 and half-coupling 9 rotate and drive fixed cover 7 and rotate, carry out first sealing to hookup location through outside safety cover 10, because there is the labyrinth 8 design on fixed cover 7, the route that the dust got into has been increased, and then the realization is sealed to the second of dust, it is sealed 6 also to increase spacer sleeve 5 and lip type in its inside, carry out the separation once more to the dust that gets into, get into and effectively prevent entering into bearing 2 position of dust, thereby prevent that bearing 2 from damaging.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.
Claims (6)
1. The lower bearing sealing device of the cement vertical mill powder concentrator comprises a main shaft (1), a bearing (2), a bearing seat (3) and a half-coupling (9), and is characterized in that a bearing (2) fixing sleeve (7) is connected on the surface of the main shaft (1), the bearing seat (3) fixing sleeve (7) is connected on the surface of the bearing (2), an end cover (4) is fixedly connected to the bottom of the bearing seat (3), the top of the end cover (4) is movably connected with the bottom of the bearing (2), a spacing sleeve (5) is arranged inside the end cover (4), the spacing sleeve (5) is fixedly connected on the surface of the main shaft (1), a lip-shaped seal (6) is arranged on the side surface of the spacing sleeve (5), the lip-shaped seal (6) is movably connected inside the end cover (4), the bottom of the end cover (4) is movably connected with the fixing sleeve (7), a labyrinth (8) is arranged between the fixing sleeve (7) and the end cover (4), the half coupling (9) is fixedly sleeved on the surface of the main shaft (1), the top of the half coupling (9) is fixedly connected with the inside of the fixed sleeve (7), and the top of the half coupling (9) is movably connected with the bottom of the spacing sleeve (5).
2. The sealing device for the lower bearing of the powder concentrator of the cement vertical mill as claimed in claim 1, wherein the side surface of the fixed sleeve (7) is provided with a protective cover (10), the inner wall of the protective cover (10) near the top is fixedly connected with a rubber strip (11), and the rubber strip (11) is movably connected with the surface of the end cover (4).
3. The lower bearing sealing device of the cement vertical mill powder concentrator according to claim 2, characterized in that the side surface of the end cover (4) is provided with an annular groove (12), and the rubber strip (11) is movably connected inside the annular groove (12).
4. A cement vertical mill concentrator lower bearing seal arrangement as claimed in claim 2, characterised in that the protective shield (10) is annular in shape.
5. The sealing device for the lower bearing of the powder concentrator of the cement vertical mill according to claim 1, characterized in that the end cover (4) is fixedly connected with the bearing seat (3) through a fixing bolt.
6. The lower bearing sealing device of the cement vertical mill powder concentrator according to the claim 1, characterized in that the number of the lip seals (6) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535081.7U CN215171604U (en) | 2021-07-07 | 2021-07-07 | Lower bearing sealing device of cement vertical mill powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535081.7U CN215171604U (en) | 2021-07-07 | 2021-07-07 | Lower bearing sealing device of cement vertical mill powder concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171604U true CN215171604U (en) | 2021-12-14 |
Family
ID=79395994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121535081.7U Active CN215171604U (en) | 2021-07-07 | 2021-07-07 | Lower bearing sealing device of cement vertical mill powder concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171604U (en) |
-
2021
- 2021-07-07 CN CN202121535081.7U patent/CN215171604U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215171604U (en) | Lower bearing sealing device of cement vertical mill powder concentrator | |
| CN208112384U (en) | A kind of sealing protective device of motor | |
| CN209798641U (en) | blowing and sucking sweeper | |
| CN210380473U (en) | Motor for glass mechanical equipment | |
| CN209012115U (en) | A kind of portable mechanical face seals of centrifugal pumps | |
| CN214698845U (en) | Integrated sealing oil seal for bearing seat of steam turbine | |
| CN206845905U (en) | A kind of bearing chamber labyrinth seal | |
| CN214466100U (en) | Maintenance-free efficient air sealing structure for generator oil groove | |
| CN2338537Y (en) | Dust-proof bearing base | |
| CN210048035U (en) | Backplate formula air shutter | |
| CN106505777B (en) | A kind of sealing device of high-speed electric expreess locomotive | |
| CN211677611U (en) | Impeller dynamic sealing device and intermittent efficient shaping machine thereof | |
| CN211768358U (en) | Screw feeder | |
| CN203522396U (en) | Motor waterproof cover | |
| CN207595734U (en) | A kind of sealing structure of run coal bin cleaner | |
| JPS6241567Y2 (en) | ||
| CN219282266U (en) | Bearing pedestal and centrifugal machine | |
| CN218844658U (en) | Impurity removing device for medium self-lubricating sliding bearing | |
| CN110976095A (en) | Hydrogen emptying device for wet dust collector | |
| CN217713365U (en) | High-cleanness anti-pollution bearing | |
| CN210240093U (en) | Novel high pressure positive blower that bearing was kept apart | |
| CN205870911U (en) | Hand - held cutting tool | |
| CN214838405U (en) | Baffle plate type shaft seal for crusher | |
| CN205744495U (en) | Sand control sewage pump | |
| CN211274650U (en) | Reation kettle safety in production device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |