CN113102041A - Sealing device for grinding roller assembly of flour mill - Google Patents
Sealing device for grinding roller assembly of flour mill Download PDFInfo
- Publication number
- CN113102041A CN113102041A CN202110281319.6A CN202110281319A CN113102041A CN 113102041 A CN113102041 A CN 113102041A CN 202110281319 A CN202110281319 A CN 202110281319A CN 113102041 A CN113102041 A CN 113102041A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- grinding roller
- gland
- oil
- shaft
- 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.)
- Pending
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 81
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 235000013312 flour Nutrition 0.000 title abstract description 13
- 210000004907 gland Anatomy 0.000 claims abstract description 40
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000003801 milling Methods 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 235000004237 Crocus Nutrition 0.000 description 1
- 241000596148 Crocus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
- B02C15/005—Rollers or balls of composite construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a grinding roller assembly sealing device of a flour mill, wherein a lower grinding roller sleeve dustproof mechanism comprises a gland arranged on a sleeve opening at the lower end of a grinding roller sleeve, a shaft sleeve tightly matched with the grinding roller shaft, an outer ring of a gland limiting rolling bearing, an inner ring of the shaft sleeve limiting rolling bearing, and a skeleton oil seal arranged between the gland and the shaft sleeve; the oil dripping device is characterized by further comprising an inner sleeve and an outer sleeve, wherein the inner sleeve is rotatably installed on the shaft sleeve below the gland, the outer sleeve is installed on the gland, an oil dripping flow passage which is from top to bottom and is bent is formed between the outer sleeve and the inner sleeve through the matching of corresponding concave and convex structures, and the upper end of the oil dripping flow passage is communicated with the framework oil seal through oil flowing intervals between the upper end face of the inner sleeve and the lower end face of the gland. The invention can effectively prevent or even stop the entering of dust through the zigzag oil dripping flow passage, and prevent the abrasion of the dust to the framework oil seal and the blockage of the rolling bearing, thereby prolonging the service life of the flour mill.
Description
Technical Field
The invention relates to a part structure of a flour mill, in particular to a sealing device for a grinding roller assembly of the flour mill.
Background
In the general structure of the main machine of the flour mill, a fixed roller frame is installed at the upper end of a main shaft of the main machine, a plurality of grinding roller assemblies distributed circumferentially are hung on the fixed roller frame through a hinge mechanism, each grinding roller assembly consists of a grinding roller sleeve, a grinding roller shaft and a grinding roller, the grinding roller assemblies keep rolling contact between each grinding roller and a grinding ring under the action of centrifugal force in the rotating process of the main shaft of the main machine, and materials are ground under the interaction of the grinding rollers and the grinding rings.
Among the grinding roller assembly, the grinding roller axle is in the grinding roller cover through last, the bearing mechanism installation of lower extreme, the lower extreme of grinding roller axle stretches out the grinding roller cover and installs the grinding roller, for preventing that the dust from causing the jam and influencing the normal operation of grinding roller pivot in getting into lower extreme bearing mechanism, the seal structure of multiple form has been adopted among the prior art, like authorizing the publication No. CN201300077Y "grinding machine non-maintaining grinding roller assembly device" utility model patent and authorizing the publication No. CN205978443U "novel grinding roller assembly sealing device" utility model patent, nevertheless because the grinding roller cover lower extreme is close to the air intake of return air case, under powerful wind-force effect, these two kinds of utility model's seal structure all are difficult to stop the invasion of dust, bearing mechanism's harm is the time problem only, finally cause the machine halt maintenance, the production efficiency of crocus host computer has seriously been influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a grinding roller assembly sealing device of a flour mill, which can effectively prevent dust from entering a bearing mechanism.
The grinding roller assembly sealing device of the flour mill capable of solving the technical problems comprises a grinding roller sleeve lower dustproof mechanism, and is characterized in that the grinding roller sleeve lower dustproof mechanism comprises a gland arranged on a sleeve opening at the lower end of a grinding roller sleeve and a shaft sleeve tightly fitted on the grinding roller shaft, the outer ring of a rolling bearing is limited by the gland, the inner ring of the rolling bearing is limited by the shaft sleeve, and a framework oil seal is arranged between the gland and the shaft sleeve; the oil dripping device is characterized by further comprising an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged on the shaft sleeve in a screwing mode below the gland, the outer sleeve is arranged on the gland, a tortuous oil dripping flow passage is formed between the outer sleeve and the inner sleeve through the matching of corresponding concave and convex structures, and the upper end of the oil dripping flow passage is communicated with the framework oil seal through oil flowing intervals between the upper end face of the inner sleeve and the lower end face of the gland.
In a preferable scheme, the oil dripping flow passage is designed to be in a triangular sawtooth shape, or a square sawtooth shape, or a wave shape.
In order to meet the requirements of the assembly process, the outer sleeve is designed into two semi-circular ring bodies which are connected and installed by a bolt and nut assembly.
The grinding roller assembly sealing device of the flour mill capable of solving the technical problems comprises a grinding roller sleeve lower dustproof mechanism, and is characterized in that the grinding roller sleeve lower dustproof mechanism comprises a gland arranged on a sleeve opening at the lower end of a grinding roller sleeve and a shaft sleeve tightly fitted on the grinding roller shaft, the outer ring of a rolling bearing is limited by the gland, the inner ring of the rolling bearing is limited by the shaft sleeve, and a framework oil seal is arranged between the gland and the shaft sleeve; still including installing the overcoat on the gland, form tortuous oil drip runner through the cooperation of the concave, protruding structure that corresponds between overcoat and the axle sleeve, oil drip runner's upper end intercommunication skeleton oil blanket.
In a preferable scheme, the oil dripping flow passage is designed to be in a triangular sawtooth shape, or a square sawtooth shape, or a wave shape.
In order to meet the requirements of the assembly process, the outer sleeve is designed into two semi-circular ring bodies which are connected and installed by a bolt and nut assembly.
The invention has the beneficial effects that:
in the structure of the sealing device for the grinding roller assembly of the flour mill, the bent oil dripping flow passage can effectively prevent or even stop dust from entering, and prevent the dust from wearing a framework oil seal and blocking a rolling bearing, thereby prolonging the service life of the flour mill.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a schematic structural diagram of another embodiment of the present invention.
Fig. 4 is a sectional view taken along line B-B in fig. 3.
And (3) identifying the figure number: 1. grinding a roller sleeve; 2. a gland; 3. a grinding roll shaft; 4. a shaft sleeve; 5. a rolling bearing; 6. framework oil seal; 7. an inner sleeve; 8. a jacket; 9. an oil dripping flow passage; 10. a bolt and nut assembly; 11. grinding the roller; 12. and locking the nut.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The invention relates to a sealing device of a grinding roller assembly of a flour mill, which adopts a lower dustproof mechanism of a grinding roller sleeve to seal and protect a rolling bearing 5 at the lower end of the grinding roller assembly, the lower part of a grinding roller shaft 3 is arranged in a lower end sleeve opening of the grinding roller sleeve 1 through the rolling bearing 5 at the lower end, and the lower end of the grinding roller shaft 3 extends out of the grinding roller sleeve 1 and is provided with a grinding roller 11.
Dustproof mechanism under the grinding roller cover, its technical scheme one: the grinding roller bearing comprises an annular gland 2, a shaft sleeve 4, an inner sleeve 7 and an outer sleeve 8, wherein the gland 2 is arranged at the lower end sleeve opening of a grinding roller sleeve 1 through bolts, a coaxially raised ring part at the top of the gland 2 is matched in the lower end sleeve opening and axially limits the outer ring of a rolling bearing 5, the shaft sleeve 4 is tightly matched on a shaft body of a grinding roller shaft 3 at the bottom of the rolling bearing 5 and axially limits the inner ring of the rolling bearing 5, a framework oil seal 6 is arranged between the gland 2, the coaxially raised ring part at the bottom of the gland 2, the raised ring part at the top of the gland 2 and an upper sleeve body of the shaft sleeve; the trepanning of endotheca 7 is the internal thread hole, and endotheca 7 closes soon to be installed in the lower part of axle sleeve 4, and endotheca 7 up end is by spacing and endotheca 7 up end and the 2 bellied ring portion lower terminal surfaces in bottom of gland down remain to have the oil flow interval, overcoat 8 is two semi-ring bodies, installs between 2 bellied ring portion in bottom of gland and endotheca 7 with bolt and nut subassembly 10 after two semi-ring bodies surround, and two semi-ring bodies and endotheca 7 form tortuous oil drip runner 9 through the cooperation of corresponding concave, protruding structure (the drawing is equidistant spaced triangle sawtooth shape oil drip runner 9, and oil drip runner 9 also can be equidistant spaced square sawtooth shape or the wave form), oil drip runner 9's upper end is through flowing oil interval intercommunication skeleton oil blanket 6, as shown in fig. 1, fig. 2.
The grinding roller 11 is limited upwards at the lower end of the shaft sleeve 4, the installation position of the grinding roller 11 on the grinding roller shaft 3 is locked by two locking nuts 12, the inner sleeve 7 rotates along with the grinding roller shaft 3, and the outer sleeve 8 is in a static state, as shown in fig. 1 and 2.
Dustproof mechanism under the grinding roller cover, its technical scheme two: the grinding roller bearing comprises an annular gland 2, a shaft sleeve 4 and an outer sleeve 8, wherein the gland 2 is installed at a lower end sleeve opening of a grinding roller sleeve 1 through bolts, a coaxially raised ring part at the top of the gland 2 is matched in the lower end sleeve opening and axially limits an outer ring of a rolling bearing 5, the shaft sleeve 4 is tightly fitted on a shaft body of a grinding roller shaft 3 at the bottom of the rolling bearing 5 and axially limits an inner ring of the rolling bearing 5, and a framework oil seal 6 is arranged between the gland 2 and an upper sleeve body of the shaft sleeve 4; the overcoat 8 is two semi-ring bodies, and two semi-ring bodies are installed in gland 2 bottom and are encircled with endotheca 7, and through the concave cooperation of protruding structure that corresponds and form tortuous oil drip runner 9 (the drawing is equidistant spaced triangle sawtooth shape oil drip runner 9, and oil drip runner 9 also can be equidistant spaced square sawtooth shape or be the wave shape) between the lower part cover body of two semi-ring bodies and axle sleeve 4, oil drip runner 9's upper end intercommunication skeleton oil blanket 6, as shown in fig. 3, fig. 4.
The grinding roller 11 is limited at the lower end of the shaft sleeve 4 in the upward axial direction, the installation position of the grinding roller 11 on the grinding roller shaft 3 is locked by two locking nuts 12, the shaft sleeve 4 rotates along with the grinding roller shaft 3, and the outer sleeve 8 is in a static state, as shown in fig. 3 and 4.
Claims (6)
1. Milling machine grinding roller assembly sealing device, dustproof mechanism under the grinding roller cover, its characterized in that: the lower dustproof mechanism of the grinding roller sleeve comprises a gland (2) arranged on a sleeve opening at the lower end of the grinding roller sleeve (1) and a shaft sleeve (4) tightly matched with the grinding roller shaft (3), the gland (2) limits the outer ring of the rolling bearing (5), the shaft sleeve (4) limits the inner ring of the rolling bearing (5), and a framework oil seal (6) is arranged between the gland (2) and the shaft sleeve (4); still include in gland (2) below close soon install endotheca (7) on axle sleeve (4) and install overcoat (8) on gland (2), form tortuous oil drip runner (9) through the cooperation of the concave, protruding structure that corresponds between overcoat (8) and endotheca (7), oil flow interval intercommunication skeleton oil blanket (6) between endotheca (7) up end and gland (2) lower terminal surface are passed through to the upper end of oil drip runner (9).
2. A mill grinding roller assembly seal apparatus for a pulverizer as claimed in claim 1, wherein: the oil dripping flow passage (9) is in a triangular sawtooth shape, a square sawtooth shape or a wave shape.
3. A mill grinding roller assembly seal apparatus for a pulverizer as claimed in claim 1, wherein: the outer sleeve (8) is two semi-circular rings which are connected and installed by a bolt and nut component (10).
4. Milling machine grinding roller assembly sealing device, dustproof mechanism under the grinding roller cover, its characterized in that: the lower dustproof mechanism of the grinding roller sleeve comprises a gland (2) arranged on a sleeve opening at the lower end of the grinding roller sleeve (1) and a shaft sleeve (4) tightly matched with the grinding roller shaft (3), the gland (2) limits the outer ring of the rolling bearing (5), the shaft sleeve (4) limits the inner ring of the rolling bearing (5), and a framework oil seal (6) is arranged between the gland (2) and the shaft sleeve (4); still including installing overcoat (8) on gland (2), form tortuous oil drip runner (9) through the cooperation of the concave, protruding structure that corresponds between overcoat (8) and axle sleeve (4), the upper end intercommunication skeleton oil blanket (6) of oil drip runner (9).
5. A mill grinding roller assembly sealing apparatus of claim 4, wherein: the oil dripping flow passage (9) is in a triangular sawtooth shape, a square sawtooth shape or a wave shape.
6. A mill grinding roller assembly sealing apparatus of claim 4, wherein: the outer sleeve (8) is two semi-circular rings which are connected and installed by a bolt and nut component (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281319.6A CN113102041A (en) | 2021-03-16 | 2021-03-16 | Sealing device for grinding roller assembly of flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281319.6A CN113102041A (en) | 2021-03-16 | 2021-03-16 | Sealing device for grinding roller assembly of flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113102041A true CN113102041A (en) | 2021-07-13 |
Family
ID=76711384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110281319.6A Pending CN113102041A (en) | 2021-03-16 | 2021-03-16 | Sealing device for grinding roller assembly of flour mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113102041A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201300077Y (en) * | 2008-10-08 | 2009-09-02 | 容北国 | Grinding mill maintenance-free grinding roller assembly device |
| CN202971905U (en) * | 2012-10-25 | 2013-06-05 | 唐山麦迪逊高岭土有限公司 | Improved Raymond mill grinding roller sealing device |
| CN203417723U (en) * | 2013-08-09 | 2014-02-05 | 陕西天祥机电设备有限公司 | Grinder roll device for swinging type pulverizer |
| CN203585338U (en) * | 2013-12-17 | 2014-05-07 | 临沂市博信机械有限公司 | Combined sealing device for grinding roller of vertical roller mill |
| CN215087649U (en) * | 2021-03-16 | 2021-12-10 | 肖文龙 | Grinding mill roller assembly sealing device |
-
2021
- 2021-03-16 CN CN202110281319.6A patent/CN113102041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201300077Y (en) * | 2008-10-08 | 2009-09-02 | 容北国 | Grinding mill maintenance-free grinding roller assembly device |
| CN202971905U (en) * | 2012-10-25 | 2013-06-05 | 唐山麦迪逊高岭土有限公司 | Improved Raymond mill grinding roller sealing device |
| CN203417723U (en) * | 2013-08-09 | 2014-02-05 | 陕西天祥机电设备有限公司 | Grinder roll device for swinging type pulverizer |
| CN203585338U (en) * | 2013-12-17 | 2014-05-07 | 临沂市博信机械有限公司 | Combined sealing device for grinding roller of vertical roller mill |
| CN215087649U (en) * | 2021-03-16 | 2021-12-10 | 肖文龙 | Grinding mill roller assembly sealing device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210713 |
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| RJ01 | Rejection of invention patent application after publication |