CN219119788U - Sealing device for grinding roll shaft of vertical mill - Google Patents
Sealing device for grinding roll shaft of vertical mill Download PDFInfo
- Publication number
- CN219119788U CN219119788U CN202223289795.1U CN202223289795U CN219119788U CN 219119788 U CN219119788 U CN 219119788U CN 202223289795 U CN202223289795 U CN 202223289795U CN 219119788 U CN219119788 U CN 219119788U
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- sealing ring
- roll shaft
- sealing
- grinding roll
- vertical mill
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The utility model provides a sealing device for a grinding roll shaft of a vertical mill, which comprises a sealing sleeve arranged between the grinding roll shaft and a sheath arranged on the grinding roll shaft, and is characterized in that one end of the sealing sleeve is provided with an oil cavity, the oil cavity is communicated with a bearing arranged on the grinding roll shaft, the other end of the sealing sleeve is connected with an inner sealing ring arranged on the grinding roll shaft, the inner sealing ring is connected with an outer sealing ring arranged on the grinding roll shaft, and a plurality of oil rings are respectively arranged in the inner sealing ring and the outer sealing ring. The sealing assembly is formed by the plurality of oil rings, the inner sealing ring, the outer sealing ring and the sealing sleeve, so that the lubricating oil on the bearing is effectively prevented from losing while the normal rotation of the grinding roller shaft is maintained, the sealing performance is improved, and dust is prevented from entering to increase mechanical wear; the sheath formed by the two semi-cylinders and the inner sealing ring and the outer sealing ring formed by the two semi-sealing rings are convenient to assemble or disassemble, so that the maintenance efficiency is greatly improved, and the hourly productivity of the vertical mill is ensured.
Description
Technical Field
The utility model relates to a sealing device, in particular to a sealing device for a grinding roll shaft of a vertical mill, and belongs to the technical field of design and manufacture of sealing parts of crushing equipment.
Background
Along with the development of the cement, metallurgy and mine material grinding industry, the vertical pulverizer has the advantages of small occupied area, low power consumption, low noise, high yield, considerable economic benefit and the like, becomes an important device in the material grinding industry, and is mainly used for grinding cement raw materials, clinker, slag, pulverized coal and other materials. The grinding roller shaft of the vertical mill is in rolling connection with the bearing, the bearing needs to be lubricated during operation, and meanwhile, the sealing component is arranged to prevent lubricating oil from losing lubricating effect, once lubrication is not available, mechanical abrasion is increased, and therefore, the sealing performance requirements of the grinding roller shaft of the vertical mill and the bearing on the grinding roller shaft of the vertical mill are high, and the sealing degree of the grinding roller shaft of the vertical mill and the bearing on the grinding roller shaft of the vertical mill can directly influence the production capacity of the vertical mill in a machine.
In addition, from the structure, after the vertical mill works for a certain period of time, gaps are generated between the grinding roller shaft and the bearings on the grinding roller shaft due to abrasion, and the gaps are increased along with the extension of time, so that dust is easy to enter from the gaps and adhere to corresponding parts of the sealing assembly, firstly, the sealing performance is reduced, secondly, the abrasion is further increased, the sealing is finally disabled, the loss of lubricating oil and dust entering are caused, the use safety of the grinding roller shaft is directly affected, the service life is shortened, the running risk and the maintenance cost of equipment are increased, and the problem is always a problem expected to be solved by a plurality of vertical mill users. Therefore, the sealing of the grinding roll shaft of the vertical mill is perfected, and the sealing device is a key for solving the working reliability, the use efficiency and the operation and maintenance cost of the vertical mill.
Disclosure of Invention
The sealing device for the grinding roll shaft of the vertical mill, provided by the utility model, has the advantages of effectively prolonging the service life of the grinding roll shaft, reducing the maintenance amount and the cost and being convenient to replace on the basis of the existing vertical mill, so that the excellent performances of simplicity in operation, high efficiency and less electricity consumption are exerted in the process of crushing, grinding, powder selecting, drying and material conveying.
The utility model is completed by the following technical scheme: the utility model provides a sealing device for grinding roller shaft of vertical mill, including locating the seal cover between the sheath on grinding roller shaft and, its characterized in that this seal cover one end is equipped with the oil pocket, this oil pocket is linked together with locating the epaxial bearing of grinding roller, the other end of this seal cover links to each other with the epaxial interior sealing ring of grinding roller, interior sealing ring links to each other with epaxial outer sealing ring of grinding roller, be equipped with a plurality of oil rings in the interior, outer sealing ring intra-annular respectively, so that through a plurality of oil rings, interior, outer sealing ring, seal cover constitution seal assembly, when keeping grinding roller shaft normal rotation, effectively prevent lubricating oil on the bearing from losing, improve sealing performance, stop the dust entering and increase mechanical wear.
The inner sealing ring and the outer sealing ring are oppositely arranged on the grinding roll shaft, connecting flanges are respectively arranged at the outer sides of the connecting parts between the inner sealing ring and the outer sealing ring, screw holes are formed in the connecting flanges at intervals, screws are arranged in the screw holes, and the inner sealing ring and the outer sealing ring are fixed on the sealing sleeve while connected through the screws.
And the outer sealing ring is provided with an oil filling hole so as to fill sealing oil into a gap between the grinding roll shaft and the sealing sleeve through the oil filling hole, and the oil ring in the sealing sleeve absorbs oil to store the sealing oil.
The sheath on the grinding roll shaft is formed by combining two semi-cylinders, straight edges perpendicular to the cylindrical surface are symmetrically arranged at the axial positions of each semi-cylinder, screw holes are formed in the straight edges at intervals, and bolts and nuts are arranged in the screw holes so as to connect the two semi-cylinders into a whole, so that connection is convenient, and meanwhile assembly or disassembly is also convenient.
The outer end of the sheath is provided with a flange, screw holes are formed in the flange at intervals, and screws are arranged in the screw holes so as to connect the baffle plate on the sheath through the screws.
The inner sealing ring is composed of two half sealing rings, so that the inner sealing ring is convenient to assemble or disassemble.
The outer sealing ring is composed of two half sealing rings, so that the outer sealing ring is convenient to assemble or disassemble.
The utility model has the following advantages and effects: by adopting the technical scheme, the sealing assembly can be conveniently formed by a plurality of oil rings, inner sealing rings, outer sealing rings and sealing sleeves, so that the lubricating oil on the bearing is effectively prevented from losing while the normal rotation of the grinding roller shaft is maintained, the sealing performance is improved, and dust is prevented from entering to increase mechanical abrasion; sealing oil is stored through the sealing sleeve, the inner sealing ring, the outer sealing ring and the oil ring in the sealing sleeve, so that the sealing performance of the oil is enhanced; the sheath formed by the two semi-cylinders and the inner sealing ring and the outer sealing ring formed by the two semi-sealing rings are convenient to connect and assemble or disassemble, so that the maintenance efficiency is greatly improved, and the machine-hour productivity of the vertical mill is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the inner and outer seal ring structures.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model provides a sealing device for a grinding roll shaft of a vertical mill, which comprises a sealing sleeve 9 arranged between a grinding roll shaft 1 and a sheath 8 arranged on the grinding roll shaft, wherein an oil cavity 11 is arranged at the inner side of the upper end of the sealing sleeve 9, the oil cavity 11 is communicated with a bearing 10 arranged on the grinding roll shaft 1, the lower end of the sealing sleeve 9 is connected with an inner sealing ring 6 arranged on the grinding roll shaft 1, the inner sealing ring 6 is connected with an outer sealing ring 5 arranged on the grinding roll shaft 1, and a plurality of oil rings 7 are respectively arranged in the inner sealing ring 6 and the outer sealing ring 5;
the inner sealing rings 6 and the outer sealing rings 5 are oppositely arranged on the grinding roll shaft 1, the outer sides of the connecting parts between the inner sealing rings 6 and the outer sealing rings 5 are respectively provided with a connecting flange 12, screw holes are arranged on the connecting flanges 12 at intervals, screws are arranged in the screw holes, so that the inner sealing rings 6 and the outer sealing rings 5 are fixed on the sealing sleeve 9 while the inner sealing rings 6 and the outer sealing rings 5 are connected through the screws;
the outer sealing ring 5 is provided with an oil filling hole 4, so that sealing oil is filled into a gap between the grinding roll shaft 1 and the sealing sleeve 9 through the oil filling hole 4, and the oil ring 7 in the sealing oil is used for absorbing oil to store the sealing oil;
the sheath 8 on the grinding roller shaft 1 is fixed on the sealing sleeve 9 through a supporting ring frame 14, and is formed by combining two semi-cylinders, straight edges 13 perpendicular to the cylindrical surface are symmetrically arranged at the axial positions of each semi-cylinder, screw holes 15 are arranged on the straight edges 13 at intervals, and bolts and nuts are arranged in the screw holes 15 so as to connect the two semi-cylinders into a whole, thereby being convenient for connection and convenient for assembly or disassembly;
the lower end of the sheath 8 is provided with a flange 3, screw holes are formed in the flange 3 at intervals, screws are arranged in the screw holes, and the baffle plate 2 is connected to the sheath 8 through the screws;
the inner sealing ring 6 is composed of two half sealing rings to facilitate assembly or disassembly.
The outer sealing ring 5 is composed of two half sealing rings to facilitate assembly or disassembly.
So that the sealing assembly is formed by the plurality of oil rings 7, the inner sealing rings 6 and the outer sealing rings 5 and the sealing sleeve 9, the lubricating oil on the bearing 10 is effectively prevented from losing while the normal rotation of the grinding roll shaft 1 is maintained, the sealing performance is improved, and dust is prevented from entering to increase mechanical abrasion.
Claims (7)
1. The utility model provides a sealing device for grinding roller shaft of vertical mill, includes the seal cover between locating grinding roller shaft and the sheath on it, its characterized in that this seal cover one end is equipped with the oil pocket, and this oil pocket is linked together with locating grinding roller epaxial bearing, and the other end of this seal cover links to each other with grinding roller epaxial interior sealing ring, and interior sealing ring links to each other with grinding roller epaxial outer sealing ring, is equipped with a plurality of oil rings respectively in the interior, the outer sealing ring.
2. The sealing device for the grinding roll shaft of the vertical mill according to claim 1, wherein the inner sealing ring and the outer sealing ring are oppositely arranged on the grinding roll shaft, connecting flanges are respectively arranged on the outer sides of the connecting parts between the inner sealing ring and the outer sealing ring, screw holes are formed in the connecting flanges at intervals, and screws are arranged in the screw holes.
3. The sealing device for the grinding roll shaft of the vertical mill according to claim 1, wherein the outer sealing ring is provided with an oil filling hole.
4. The sealing device for the grinding roll shaft of the vertical mill according to claim 1, wherein the sheath on the grinding roll shaft is formed by combining two semi-cylinders, straight edges perpendicular to the cylindrical surface are symmetrically arranged at the axial positions of each semi-cylinder, screw holes are formed in the straight edges at intervals, and bolts and nuts are arranged in the screw holes.
5. The sealing device for the grinding roll shaft of the vertical mill according to claim 1, wherein the outer end of the sheath is provided with a flange, screw holes are arranged on the flange at intervals, and screws are arranged in the screw holes.
6. The sealing device for a grinding roll shaft of a vertical mill according to claim 1, characterized in that the inner sealing ring consists of two half sealing rings.
7. The sealing device for a grinding roll shaft of a vertical mill according to claim 1, characterized in that the outer sealing ring consists of two half sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289795.1U CN219119788U (en) | 2022-12-08 | 2022-12-08 | Sealing device for grinding roll shaft of vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289795.1U CN219119788U (en) | 2022-12-08 | 2022-12-08 | Sealing device for grinding roll shaft of vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219119788U true CN219119788U (en) | 2023-06-02 |
Family
ID=86532364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223289795.1U Active CN219119788U (en) | 2022-12-08 | 2022-12-08 | Sealing device for grinding roll shaft of vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219119788U (en) |
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2022
- 2022-12-08 CN CN202223289795.1U patent/CN219119788U/en active Active
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