CN214466093U - Split type ball mill big tile hollow shaft sealing device - Google Patents
Split type ball mill big tile hollow shaft sealing device Download PDFInfo
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- CN214466093U CN214466093U CN202120247460.XU CN202120247460U CN214466093U CN 214466093 U CN214466093 U CN 214466093U CN 202120247460 U CN202120247460 U CN 202120247460U CN 214466093 U CN214466093 U CN 214466093U
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- oil
- ball mill
- slinger
- end cover
- sealing device
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Abstract
A sealing device for a split ball mill large-tile hollow shaft relates to a mechanical sealing device, and comprises a static sealing end cover (2) sleeved on a rotating shaft (1), and is characterized by further comprising a movable oil slinger (3), wherein an annular accommodating space (4) used for accommodating the movable oil slinger (3) is arranged at the inner side end of the static sealing end cover (2), oil return ports (5) are formed in the side wall below the annular accommodating space (4), a plurality of oil slingers (6) are arranged on the periphery of the movable oil slinger (3), the oil slingers (6) are separated by oil blocking ring grooves (7), and the movable oil slinger (3) is fixed in the annular accommodating space (4) of the static sealing end cover (2) on the rotating shaft (1) and is left with a gap in the inner wall of the static sealing end cover (2). The sealing device has the advantages of simple structure, low manufacturing cost, easiness in installation and maintenance, good sealing effect, long maintenance period and low maintenance cost.
Description
Technical Field
The utility model relates to a mechanical seal device, concretely relates to split ball mill big tile hollow shaft sealing device.
Background
The ball mill is the key equipment for crushing the materials after the materials are crushed. The ball mill is suitable for grinding various ores and other materials, and is widely applied to the industries of mineral separation, building materials, chemical industry and the like. At present, the ball mill large tile hollow shaft is generally sealed by adopting a forced contact type seal, the sealing effect of the sealing mode is poor, and good sealing can only be kept for a short time. There is a shaft grinding phenomenon due to direct contact friction between the seal and the shaft. The problems of fast loss of a sealing element and a shaft, easy leakage of lubricating oil, short maintenance period and high maintenance cost are directly caused.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: aiming at the problems, the sealing device for the large tile hollow shaft of the split ball mill is good in sealing effect.
The technical solution of the utility model is that: the split ball mill large-tile hollow shaft sealing device comprises a static sealing end cover sleeved on a rotating shaft and further comprises a movable oil slinger, wherein an annular accommodating space used for accommodating the movable oil slinger is formed in the inner side end of the static sealing end cover, an oil return opening is formed in the side wall below the annular accommodating space, a plurality of oil slingers are arranged on the periphery of the movable oil slinger, the oil slingers are separated by oil slinger grooves, and the movable oil slinger is fixed on the rotating shaft in the annular accommodating space of the static sealing end cover and is in clearance with the inner wall of the static sealing end cover.
The technical effects of the utility model are that: the sealing device has the advantages of simple structure, low manufacturing cost, easiness in installation and maintenance, good sealing effect, long maintenance period and low maintenance cost. The ball mill is characterized in that a flexible polytetrafluoroethylene movable oil slinger is adopted, an N-stage oil slinger is designed on an outer circle, lubricating oil overflowing along the axial direction meets the oil slinger and then is thrown onto the inner wall of a static sealing end cover step by step, the lubricating oil flows down along the inner wall of the static sealing end cover by self weight and flows into an oil return pool through an oil return hole, and the problem of oil leakage of the sealing of the large tile hollow shaft of the ball mill by forced contact type sealing is solved by the non-contact sealing mode. When the movable oil slinger is installed, a certain clearance is reserved between the movable oil slinger and the static sealing end cover in the axial direction and the radial direction, so that mutual friction cannot occur, and the phenomenon of shaft grinding is avoided. The improved sealing device for the large-tile hollow shaft of the ball mill has no spare parts, can achieve maintenance-free performance, and has the service life prolonged to more than 50 years.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic side view of the present invention.
Detailed Description
As shown in fig. 1 and 2, the sealing device for the large-bush hollow shaft of the split ball mill comprises a static sealing end cover 2 sleeved on a rotating shaft 1 and further comprises a movable oil slinger 3, wherein an annular accommodating space 4 used for accommodating the movable oil slinger 3 is arranged at the inner side end of the static sealing end cover 2, an oil return opening 5 is formed in the side wall below the annular accommodating space 4, a plurality of oil slingers 6 are arranged on the periphery of the movable oil slinger 3, the oil slingers 6 are separated by oil slinger grooves 7, and the movable oil slinger 3 is fixed on the rotating shaft 1 in the annular accommodating space 4 of the static sealing end cover 2 and is spaced from the inner wall of the static sealing end cover 2.
At least two oil slingers 6 are arranged on the movable oil slinger 3.
The movable oil slinger 3 is fixed on the rotating shaft 1 through a bolt.
An oil return pipe 8 is connected to the oil return port 5.
The movable oil slinger 3 is composed of two half-rings.
The static sealing end cover 2 is composed of two half ring bodies which are connected through bolts.
The split ball mill large tile hollow shaft sealing device comprises two parts, namely a movable oil retainer fixedly arranged on a large tile hollow rotating shaft of the ball mill, and a static sealing end cover fixedly arranged on the side of the large tile of the ball mill. After the hollow shaft of the large tile of the ball mill rotates, lubricating oil in the bearing bush can overflow to the outer side of the static sealing end cover along the axial direction, after the lubricating oil overflowing along the axial direction meets a movable oil slinger fixed on a rotating shaft, a multi-stage oil slinger on the excircle of the passive oil slinger is gradually blocked and thrown, and the lubricating oil is thrown onto the inner wall of the static sealing end cover, flows downwards along the inner wall of the static sealing end cover under the action of the self weight, returns to the oil pool at the lower part of the large tile of the ball mill through an oil return hole and an oil return pipe flow at the lower part of the static sealing end cover, and forms an oil return system, thereby achieving the sealing effect.
Claims (6)
1. To big tile hollow shaft sealing device of open ball mill, including static end cover (2) of sealing on pivot (1), its characterized in that still includes and moves oil slinger (3), static end cover (2) medial extremity is equipped with annular accommodation space (4) that are used for holding and move oil slinger (3) to be equipped with oil return opening (5) on the lateral wall of annular accommodation space (4) below, move oil slinger (3) periphery and be equipped with multichannel oil slinger (6), by oil-blocking ring groove (7) interval between oil slinger (6), move oil slinger (3) in annular accommodation space (4) internal fixation of static end cover (2) on pivot (1) to leave the clearance with static end cover (2) inner wall.
2. The split ball mill hollow tile shaft seal according to claim 1, wherein there are at least two slingers (6) on said moving slinger (3).
3. The split ball mill hollow tile shaft seal according to claim 1, wherein said movable slinger (3) is bolted to said shaft (1).
4. The split ball mill big tile hollow shaft sealing device according to claim 1, characterized in that an oil return pipe (8) is connected to the oil return opening (5).
5. The split ball mill large tile hollow shaft seal according to any one of claims 1 to 4, characterized in that said movable slinger (3) is formed of two half-rings.
6. The split ball mill large tile hollow shaft sealing device according to any one of claims 1 to 4, wherein said static end cap (2) is formed of two half-rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120247460.XU CN214466093U (en) | 2021-01-29 | 2021-01-29 | Split type ball mill big tile hollow shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120247460.XU CN214466093U (en) | 2021-01-29 | 2021-01-29 | Split type ball mill big tile hollow shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466093U true CN214466093U (en) | 2021-10-22 |
Family
ID=78141919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120247460.XU Active CN214466093U (en) | 2021-01-29 | 2021-01-29 | Split type ball mill big tile hollow shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466093U (en) |
-
2021
- 2021-01-29 CN CN202120247460.XU patent/CN214466093U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220106 Address after: 157000 No. 12-000107, Wuzhou International Trade Expo City, Xi'an District, Mudanjiang City, Heilongjiang Province Patentee after: Mudanjiang Hongliang sealing device Co.,Ltd. Address before: 157000 12 # 107, zone 2, Wuzhou International Trade Expo City, Xi'an District, Mudanjiang City, Heilongjiang Province Patentee before: Dai Hongliang |