CN215087649U - Sealing device for grinding roller assembly of flour mill - Google Patents
Sealing device for grinding roller assembly of flour mill Download PDFInfo
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- CN215087649U CN215087649U CN202120543976.9U CN202120543976U CN215087649U CN 215087649 U CN215087649 U CN 215087649U CN 202120543976 U CN202120543976 U CN 202120543976U CN 215087649 U CN215087649 U CN 215087649U
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Abstract
The utility model discloses a grinding roller assembly sealing device of a flour mill, wherein a grinding roller sleeve lower dustproof mechanism comprises a gland arranged on a sleeve opening at the lower end of a grinding roller sleeve, a shaft sleeve tightly fitted on the grinding roller, an outer ring of a gland limiting rolling bearing, an inner ring of a shaft sleeve limiting rolling bearing, and a framework 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 utility model discloses a tortuous oil drip runner can effectively prevent or even stop the entering of dust, prevents the dust to the wearing and tearing of skeleton oil blanket and to antifriction bearing's jam to improve the life of milling machine.
Description
Technical Field
The utility model relates to a milling machine part structure specifically is a milling machine grinding roller assembly sealing device.
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.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to solve the technical problem that an effective flour mill grinding roller assembly sealing device who prevents the dust entering bearing mechanism has been provided.
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 utility model has the advantages that:
the utility model discloses among the milling machine grinding roller assembly sealing device structure, can effectively prevent the entering of stopping the dust even through tortuous oil drip runner, prevent the dust to the wearing and tearing of skeleton oil blanket and to antifriction bearing's jam to improve the life of milling machine.
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 utility model discloses milling machine grinding roller assembly sealing device adopts under the grinding roller cover dustproof mechanism to seal protection to antifriction bearing 5 of grinding roller assembly lower extreme, and the lower part of grinding roller axle 3 is installed in the lower end cover mouth of grinding roller cover 1 through antifriction bearing 5 of lower extreme, and the lower extreme of grinding roller axle 3 stretches out grinding roller cover 1 and installs 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 4, and the lower part of the shaft sleeve 4 is an external thread; 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 |
|---|---|---|---|
| CN202120543976.9U CN215087649U (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 |
|---|---|---|---|
| CN202120543976.9U CN215087649U (en) | 2021-03-16 | 2021-03-16 | Sealing device for grinding roller assembly of flour mill |
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| Publication Number | Publication Date |
|---|---|
| CN215087649U true CN215087649U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120543976.9U Active CN215087649U (en) | 2021-03-16 | 2021-03-16 | Sealing device for grinding roller assembly of flour mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102041A (en) * | 2021-03-16 | 2021-07-13 | 肖文龙 | Sealing device for grinding roller assembly of flour mill |
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2021
- 2021-03-16 CN CN202120543976.9U patent/CN215087649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102041A (en) * | 2021-03-16 | 2021-07-13 | 肖文龙 | Sealing device for grinding roller assembly of flour mill |
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