CN211755557U - Raymond mill oil-saving grinding wheel - Google Patents
Raymond mill oil-saving grinding wheel Download PDFInfo
- Publication number
- CN211755557U CN211755557U CN202020173402.2U CN202020173402U CN211755557U CN 211755557 U CN211755557 U CN 211755557U CN 202020173402 U CN202020173402 U CN 202020173402U CN 211755557 U CN211755557 U CN 211755557U
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- grinding wheel
- shell
- oil seal
- wheel shaft
- framework oil
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a lei meng grinds emery wheel that economizes on fuel, include: the grinding wheel comprises an upper end cover, a bearing, a first framework oil seal, a shell, a grinding wheel shaft, a second framework oil seal, a lower gland, a lower labyrinth sleeve and a grinding wheel; the upper end of the grinding wheel shaft is arranged in the shell in a penetrating way through a bearing, and the lower end of the grinding wheel shaft is provided with a grinding wheel; the top of the shell is provided with an upper end cover, and the upper end of the inner side of the shell is provided with a first framework oil seal; a lower gland is arranged at the lower end of the shell, and a second framework oil seal is arranged on the inner side of the lower gland; and a lower labyrinth sleeve is fixed on the grinding wheel shaft below the second framework oil seal, and multiple labyrinth seals are arranged between the lower end of the lower pressure cover and the lower labyrinth sleeve. The utility model discloses raymond mill emery wheel that economizes on fuel simple structure, reasonable in design, emery wheel assembly leakproofness is good, has the advantage that the oil consumption is low, bearing long service life.
Description
Technical Field
The utility model relates to a raymond mill sealing technique especially relates to a raymond mill emery wheel that economizes on fuel.
Background
The Raymond mill is the most widely applied equipment in the mineral powder industry, the material is rolled by centrifugal force generated by a suspended grinding wheel assembly device in the operation process of the equipment to be crushed into mineral powder, and the dust-proof failure of the grinding wheel assembly device is the main fault reason because of continuous scouring of high-concentration powder in the equipment in the working process, so the reliability of the dust-proof sealing of the Raymond mill grinding wheel assembly device is an important part of the high and low failure rate of the Raymond mill.
The structure of the prior Raymond mill is shown in figure 1, two framework oil seals 17 are arranged at the lower part, a felt 14 is arranged at the bottom end, and the tightness of the felt is adjusted by a compression nut 15. Under the condition of severe environment, the felt is worn quickly, the gap of the compression nut cannot be adjusted again, the felt sealing fails, the framework oil seal 17 encounters particle dust, the shaft sleeve 16 is ground in a rotating way, the shaft sleeve 16 is ground out of a deep groove quickly, and the glycerol is melted into a flow state due to the high operating temperature for a long time, so that the glycerol is lost quickly from the gap between the framework oil seal 17 and the shaft sleeve 16; the felt ring 13 contains oil and can lubricate the framework oil seal 17 for a long time.
In order to protect the bearing, glycerin must be frequently filled, and the glycerin must be filled once in a shift, which causes great waste. The consumption of glycerol is almost ten thousand per year.
If an operator does not timely replenish the lubricating grease to the bearing, the bearing can be damaged due to oil shortage.
Typically, such conventional grinding wheel assemblies require removal for maintenance for almost three or four months. Delays production and has large direct and indirect loss.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to, it is unreasonable to current raymond mill seal structure, lead to the glycerine consumption big, lead to the problem that bearing life is low, provide a raymond mill emery wheel that economizes on fuel, this emery wheel leakproofness is good, has the advantage that the oil consumption is low, bearing long service life.
In order to achieve the above object, the utility model adopts the following technical scheme: a Raymond mill oil-saving grinding wheel comprises: the grinding wheel comprises an upper end cover, a bearing, a first framework oil seal, a shell, a grinding wheel shaft, a second framework oil seal, a lower gland, a lower labyrinth sleeve and a grinding wheel;
the upper end of the grinding wheel shaft is arranged in the shell in a penetrating way through a bearing, and the lower end of the grinding wheel shaft is provided with a grinding wheel; the top of the shell is provided with an upper end cover, and the upper end of the inner side of the shell is provided with a first framework oil seal; a lower gland is arranged at the lower end of the shell, and a second framework oil seal is arranged on the inner side of the lower gland; and a lower labyrinth sleeve is fixed on the grinding wheel shaft below the second framework oil seal, and multiple labyrinth seals are arranged between the lower end of the lower pressure cover and the lower labyrinth sleeve.
Furthermore, the lower labyrinth sleeve is in threaded connection with the grinding wheel shaft, and the threaded connection can better adjust the gap sealing between the lower labyrinth sleeve and the lower pressure cover.
Furthermore, an upper spare cap is arranged on the inner side of the upper end cover and the top of the grinding wheel shaft.
Further, a lower spare cap is arranged at the bottom of the grinding wheel shaft.
Furthermore, the middle part of the grinding wheel shaft is provided with a self-aligning bearing.
The utility model discloses the emery wheel that economizes on fuel of raymond mill simple structure, reasonable in design, emery wheel assembly leakproofness is good. Compared with the prior art have following advantage: the double seal is increased, the abrasion of the framework oil seal caused by the entering of dust is effectively prevented, the problem of sealing failure is prevented, the oil loss is reduced, the time of interval oil injection is prolonged, the oil injection is prolonged to one month once by one time of the original one-day oil injection, the oil consumption is saved, the maintenance cost is reduced, and the output of the Raymond mill is relatively improved.
The utility model discloses the lei meng grinds emery wheel that economizes on fuel practices thrift lubricating oil 90%, practices thrift maintenance duration 80%, practices thrift maintenance cost 80%, increases bearing life 4 times, improves production efficiency 5%.
Drawings
FIG. 1 is a schematic structural diagram of a conventional Raymond mill;
fig. 2 is a schematic structural view of the oil-saving grinding wheel of the Raymond mill of the utility model.
Detailed Description
The invention is further illustrated below with reference to the following examples:
example 1
The embodiment discloses a Raymond mill oil-saving grinding wheel, the structure of which is shown in figure 2, comprising: the grinding wheel grinding machine comprises an upper end cover 1, a bearing 3, a first framework oil seal 4, a shell 5, a grinding wheel shaft 6, a second framework oil seal 8, a lower pressing cover 9, a lower labyrinth sleeve 10 and a grinding wheel 11;
the upper end of the grinding wheel shaft 6 is arranged in the shell 5 in a penetrating way through the bearing 3, and the lower end of the grinding wheel shaft 6 is provided with a grinding wheel 11; an upper end cover 1 is arranged at the top of the shell 5, and a first framework oil seal 4 is arranged at the upper end of the inner side of the shell 5; a lower gland 9 is arranged at the lower end of the shell, and a second framework oil seal 8 is arranged on the inner side of the lower gland 9; a lower labyrinth sleeve 10 is fixed on the grinding wheel shaft 6 below the second framework oil seal 8, and multiple labyrinth seals are arranged between the lower end of the lower gland 9 and the lower labyrinth sleeve 10. Multiple labyrinth seals, small gap and deep depth, can contain waste oil with certain height, and effectively prevents dust from entering.
The utility model discloses the raymond mill emery wheel that economizes on fuel is provided with multiple labyrinth, the effectual dust that has reduced in multiple labyrinth gets into the cavity, second skeleton oil blanket 8 and lower labyrinth cover 10 distance extension, the labyrinth groove is deep, the useless glycerine gets into down labyrinth groove department and forms the lotion sealed, even the dust gets into last one labyrinth department, also can be glued by glycerine in the labyrinth chamber to no longer form the threat to the skeleton oil blanket, the skeleton oil blanket does not have the dust with the axle sleeve to mix with, the wearing and tearing volume is very little, can reach life more than one year. The sealing part is not damaged, the loss of the glycerin is less, and the practice summary shows that the oiling time is changed from one time of oiling per shift to one time of oiling per month, so that the consumption of the glycerin is greatly saved, the service life of the bearing is greatly prolonged, and almost all the oiling time is more than one year.
The lower labyrinth sleeve 10 is in threaded connection with the grinding wheel shaft 6, and the threaded connection can better adjust the gap sealing between the lower labyrinth sleeve 10 and the lower pressure cover 9.
An upper spare cap 2 is arranged on the inner side of the upper end cover 1 and the top of the grinding wheel shaft 6, and the bearing clearance can be adjusted by the upper spare cap 2.
The bottom of the grinding wheel shaft 6 is provided with a lower spare cap 12, and the lower spare cap 12 can lock the grinding wheel 11.
Further, the center of the grinding wheel shaft 6 is provided with a self-aligning bearing 7.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A Raymond mill oil-saving grinding wheel is characterized by comprising: the grinding wheel comprises an upper end cover (1), a bearing (3), a first framework oil seal (4), a shell (5), a grinding wheel shaft (6), a second framework oil seal (8), a lower pressing cover (9), a lower labyrinth sleeve (10) and a grinding wheel (11);
the upper end of the grinding wheel shaft (6) is arranged in the shell (5) in a penetrating way through the bearing (3), and the lower end of the grinding wheel shaft (6) is provided with a grinding wheel (11); an upper end cover (1) is arranged at the top of the shell (5), and a first framework oil seal (4) is arranged at the upper end of the inner side of the shell (5); a lower gland (9) is arranged at the lower end of the shell, and a second framework oil seal (8) is arranged on the inner side of the lower gland (9); a lower labyrinth sleeve (10) is fixed on the grinding wheel shaft (6) below the second framework oil seal (8), and multiple labyrinth seals are arranged between the lower end of the lower gland (9) and the lower labyrinth sleeve (10).
2. The raymond-mill fuel-saving grinding wheel according to claim 1, characterized in that the lower labyrinth sleeve (10) is in threaded connection with the grinding wheel shaft (6).
3. The Raymond mill oil-saving grinding wheel as claimed in claim 1, wherein an upper spare cap (2) is arranged on the inner side of the upper end cover (1) and the top of the grinding wheel shaft (6).
4. The Raymond-mill fuel-saving grinding wheel according to claim 1, characterized in that a lower spare cap (12) is arranged at the bottom of the grinding wheel shaft (6).
5. The Raymond mill oil-saving grinding wheel as claimed in claim 1, wherein a self-aligning bearing (7) is arranged in the middle of the grinding wheel shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173402.2U CN211755557U (en) | 2020-02-17 | 2020-02-17 | Raymond mill oil-saving grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173402.2U CN211755557U (en) | 2020-02-17 | 2020-02-17 | Raymond mill oil-saving grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211755557U true CN211755557U (en) | 2020-10-27 |
Family
ID=72907778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020173402.2U Expired - Fee Related CN211755557U (en) | 2020-02-17 | 2020-02-17 | Raymond mill oil-saving grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211755557U (en) |
-
2020
- 2020-02-17 CN CN202020173402.2U patent/CN211755557U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20220217 |