CN110898879B - A low pressure grain mill - Google Patents
A low pressure grain mill Download PDFInfo
- Publication number
- CN110898879B CN110898879B CN201911216089.4A CN201911216089A CN110898879B CN 110898879 B CN110898879 B CN 110898879B CN 201911216089 A CN201911216089 A CN 201911216089A CN 110898879 B CN110898879 B CN 110898879B
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- CN
- China
- Prior art keywords
- auger
- shaft
- machine body
- main
- low
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- 241001282160 Percopsis transmontana Species 0.000 claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 235000013339 cereals Nutrition 0.000 abstract description 39
- 238000000227 grinding Methods 0.000 abstract description 19
- 238000003801 milling Methods 0.000 abstract description 15
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 6
- 235000009566 rice Nutrition 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 8
- 241000209094 Oryza Species 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
Landscapes
- Crushing And Grinding (AREA)
- Adjustment And Processing Of Grains (AREA)
Abstract
The invention discloses a low-pressure grain grinding machine, which comprises a machine body, a main motor, a main shaft, sand rollers, a screen plate, a screen frame and a frequency converter, wherein the main motor, the main shaft, the sand rollers, the screen frame and the frequency converter are arranged in the machine body, the main motor is connected with the main shaft through a main belt pulley group and a triangular belt, the sand rollers are arranged outside the main shaft, the screen frame is fixedly provided with the screen plate, the upper part of the machine body is provided with a cone hopper for feeding, a plurality of auger shafts which are arranged around the sand rollers are arranged in the screen plate, the lower part of each auger shaft is of a strip-shaped structure with rib plates, the rib plates are provided with screw degrees, the lower end of each auger shaft is connected with the machine body, the upper part of each auger shaft is connected with a small belt pulley, all small belt pulleys are connected with the machine body through a double-sided tooth synchronous belt in a transmission manner, the rotation direction of the adjacent auger shafts is opposite, the top of at least one auger shaft is connected with the auxiliary motor through an auxiliary belt pulley and a synchronous belt, and the main motor is electrically connected with the frequency converter. The pressure in the milling chamber of the mill is small, the broken rice rate is low, and the power consumption is small.
Description
Technical Field
The invention belongs to grain processing equipment, and particularly relates to a low-pressure grain mill.
Background
Grain mills are grain processing machinery that dehulled grains by the impact and tumbling motion of the grains under axial thrust in the milling chamber and milling pressure in the milling chamber. When the traditional mill grinds the grain and removes the skin, the spiral propeller is used for forcing the grain to advance along the axial direction, and the milling pressure in the milling chamber is larger and the rolling movement of the grain in the milling chamber is weaker because the outlet area of the mill is smaller.
The rolling motion of the grains in the milling chamber of the traditional mill mainly comes from the following points of 1, rolling caused by collision of the grains, 2, rolling caused by rolling grooves or ribs, 3, rolling caused by a rice knife, a sieve plate and convex points, 4, rolling caused by air spraying, and the grains are easy to generate broken grains due to larger pressure when being milled in the milling chamber, thereby reducing the yield and having high power consumption of equipment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the low-pressure grain mill, which has the advantages of small pressure in a milling chamber, low rice breakage rate and low power consumption.
The low-pressure grain milling machine comprises a machine body, a main motor, a main shaft, sand rollers, a screen plate, a screen frame and a frequency converter, wherein the main motor, the main shaft, the sand rollers, the screen frame and the frequency converter are arranged in the machine body, the main motor is connected with the main shaft through a main belt pulley group and a triangular belt, the sand rollers are arranged outside the main shaft, the screen frame is arranged outside the sand rollers, the screen plate is fixed in the screen frame, a cone hopper for feeding is arranged on the machine body, a plurality of auger shafts which are arranged around the sand rollers are arranged in the screen plate, the lower part of each auger shaft is of a strip-shaped structure with rib plates, the rib plates are provided with screw degrees, the lower ends of the auger shafts are connected with the machine body, the upper parts of the auger shafts are connected with small belt pulleys through a double-sided toothed synchronous belt in a transmission mode, the rotation direction of adjacent auger shafts is opposite, the top of at least one auger shaft is connected with a secondary motor through a secondary belt pulley and a synchronous belt, and the secondary motor is electrically connected with the frequency converter.
In the above technical solution, the number of the auger shafts is at least 15.
In the technical scheme, the upper part of the auger shaft is of a spiral auger structure, and the length of the spiral auger structure is adapted to the length of the feeding material.
In the technical scheme, the spiral directions of the spiral auger structures adjacent to the auger shafts are opposite, and the spiral directions of the rib plates are also opposite.
In the technical scheme, the length of the rib plate is smaller than or equal to the length of the sand roller.
In the technical scheme, the auxiliary motor is connected with a speed reducer, and the output end of the speed reducer is connected with the auxiliary belt wheel through a speed reducing belt wheel and a synchronous belt.
In the technical scheme, the speed reducer is connected with the machine body through the speed reducer seat.
In the technical scheme, the upper parts of the main shaft and the auger shaft are arranged in the feeding bearing seat in a penetrating way.
In the above technical scheme, the double-sided tooth synchronous belt is provided with at least one tensioning belt wheel.
In the technical scheme, the rice poking roller is sleeved outside the main shaft above the sand roller.
In the technical scheme, a plurality of stand columns are arranged outside the screen frame and are connected with the machine body.
The grain peeling machine has the advantages that grains enter the stock room from the feed inlet, the spiral auger part of the auger shaft uniformly feeds the grains into the grinding room, the rotating rib plate in the grinding room is controlled by the frequency converter and the auxiliary motor, the rotating speed of the auger shaft can be adjusted at any time, the rolling motion of the grains in the grinding room can be enhanced, the grains in the grinding room mainly move along the axial direction of the sand roller by free falling body motion, therefore, the pressure in the grinding room is small, the grains can be uniformly and efficiently subjected to the grinding action of diamond grains on the surface of the sand roller in the axial direction of the sand roller in the grinding room under the condition that the grain density, the pressure and the linear speed of the sand roller in the grinding room are not required to be increased, meanwhile, the rotating speed of the sand roller is controlled by the frequency converter and the main motor, and the optimal linear speed of the grinding roller can be obtained by adjusting the current frequency, so that the peeling efficiency and the yield of the grains are improved, and the power consumption of equipment is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of a portion of the structure of fig. 1.
Fig. 3 is an exploded view of the structure of the other part of fig. 1.
Fig. 4 is a schematic structural view of two adjacent auger shafts in fig. 1.
Fig. 5 is a schematic view of the structure of fig. 1 in partial cross section.
The machine comprises a machine body 1, a main motor 2, a main shaft 3, a sand roller 4, a sieve plate 5, a sieve frame 6, a frequency converter 7, a triangular belt 8, a cone hopper 9, an auger shaft 10, a rib plate 11, a small belt pulley 12, a double-sided tooth synchronous belt 13, a secondary belt pulley 14, a synchronous belt 15, a secondary motor 16, a speed reducer 17, a speed reducer 18, a speed reducing belt pulley 19, a speed reducer seat 20, a feeding bearing seat 21, a tensioning belt pulley 22, a rice stirring roller 23 and a stand column.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
The low-pressure grain grinding machine comprises a machine body 1, a main motor 2, a main shaft 3, sand rollers 4, a screen plate 5, a screen frame 6 and a frequency converter 7, wherein the main motor 2, the main shaft 3, the sand rollers 4, the screen frame 6 and the screen frame 6 are arranged outside the main shaft 3, the screen plate 5 is fixed in the screen frame 6, a cone hopper 9 for feeding is arranged at the upper part of the machine body 1, a plurality of auger shafts 10 which are arranged around the sand rollers are arranged in the screen plate 5, the lower part of the auger shafts 10 is of a strip-shaped structure with rib plates 11, the rib plates 11 are provided with spiral degrees, the lower end of the auger shafts 10 is connected with the machine body 1, small belt pulleys 12 are connected at the upper part of the auger shafts 10, all the small belt pulleys 12 are in transmission connection through a double-sided toothed synchronous belt 13, the rotation direction of the adjacent auger shafts 10 is opposite, the top of at least one auger shaft 10 is connected with a secondary motor 16 through a secondary belt pulley 14 and a synchronous belt 15, and the secondary motor 16 and the main motor 2 are electrically connected with the frequency converter 7.
In the above technical solution, the number of the auger shafts 10 is at least 20. The auger shafts 10 are uniformly arranged outside the sand roller, so that the grains are uniformly milled.
In the above technical scheme, the upper part of the auger shaft 10 is a spiral auger structure, and the length of the spiral auger structure is adapted to the length of the feed inlet. The auger structure facilitates pushing the grains into the milling chamber.
As shown in fig. 4, the spiral direction of the spiral packing auger structure adjacent to the packing auger shaft 10 is opposite, and the spiral direction of the rib plate 11 adjacent to the packing auger shaft 10 is also opposite. The rib plates and the spiral auger structure part are in spiral reverse direction, so that the rolling motion of grains in a milling chamber can be enhanced, and the peeling effect is better. The milling chamber is the cavity part between the sieve plate 5 and the sand roller 4, and the auger shaft 10 is arranged in the milling chamber. In fig. 4, one auger shaft has a relatively long length, that is, the upper end of the auger shaft is provided with a secondary pulley 14 connected with a secondary motor 16 for driving all the auger shafts 10.
In the above technical solution, the length of the rib plate 11 is less than or equal to the length of the sand roller 4.
In the above-described technical solution, the secondary motor 16 is connected to a speed reducer 17, and an output end of the speed reducer 17 is connected to the secondary pulley 14 through a speed reducing pulley 18 and a timing belt 15.
In the above technical solution, the speed reducer 17 is connected to the machine body 1 through a speed reducer base 19.
In the above technical scheme, the upper parts of the main shaft 3 and the auger shaft 10 are arranged in the feeding bearing seat 20 in a penetrating way, and the feeding bearing seat 20 is connected to the upper part of the machine body 1.
In the above technical solution, at least one tensioning pulley 21 is provided on the double-sided toothed synchronous belt 13.
In the above technical scheme, the main shaft 3 above the sand roller 4 is sleeved with the rice poking roller 22.
In the above technical scheme, a plurality of stand columns 23 are arranged outside the screen frame 6, and the stand columns 23 are connected with the machine body 1.
The grain is axially moved along the sand roller by the free falling body, so that the pressure in the grinding chamber is small, the spiral auger structure can uniformly feed the grain into the grinding chamber mechanism, the rotating speed of the rotating rib plate in the grinding chamber mechanism can be regulated by the frequency converter, the rotating speed of the auger shaft can be regulated at any time, the rolling motion of the grain in the grinding chamber can be enhanced, the probability of the grain contacting with diamond grains on the surface of the sand roller is increased, the grain can be uniformly and efficiently subjected to the grinding action of the diamond grains on the surface of the sand roller in the grinding chamber in the axial movement process of the sand roller without increasing the grain density, the pressure and the linear speed of the sand roller of the grinding chamber, meanwhile, the rotating speed of the sand roller is controlled by the motor and the frequency converter, the optimal linear speed of the grinding sand roller can be obtained by regulating the current frequency of the main motor, the peeling efficiency and the yield of the grain are improved, and the power consumption of equipment is reduced.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216089.4A CN110898879B (en) | 2019-12-02 | 2019-12-02 | A low pressure grain mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216089.4A CN110898879B (en) | 2019-12-02 | 2019-12-02 | A low pressure grain mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110898879A CN110898879A (en) | 2020-03-24 |
| CN110898879B true CN110898879B (en) | 2024-12-06 |
Family
ID=69821597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911216089.4A Active CN110898879B (en) | 2019-12-02 | 2019-12-02 | A low pressure grain mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN110898879B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113617410A (en) * | 2021-07-13 | 2021-11-09 | 湖南郴州粮油机械有限公司 | Peeling and grinding processing equipment |
| CN114433274B (en) * | 2022-01-22 | 2023-03-31 | 河南工业大学 | Flexible grain peeling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211838059U (en) * | 2019-12-02 | 2020-11-03 | 湖北永祥粮食机械股份有限公司 | Low-pressure grain mill |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258793Y (en) * | 1996-05-15 | 1997-08-06 | 郭连群 | Double net reversed axial-flow wheat huller |
| CN201337916Y (en) * | 2008-12-27 | 2009-11-04 | 江苏鹤溪机械有限公司 | Multi-functional vertical sand-roller peeler |
| JP5656006B2 (en) * | 2010-09-17 | 2015-01-21 | 株式会社サタケ | Grinding type vertical grain mill |
| JP2014039888A (en) * | 2011-05-13 | 2014-03-06 | Satake Corp | Resistor adjusting device for grain polishing machine |
| CN202315982U (en) * | 2011-08-16 | 2012-07-11 | 江苏鹤溪机械有限公司 | Novel vertical-type emery-roller rice milling machine |
-
2019
- 2019-12-02 CN CN201911216089.4A patent/CN110898879B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211838059U (en) * | 2019-12-02 | 2020-11-03 | 湖北永祥粮食机械股份有限公司 | Low-pressure grain mill |
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| CN110898879A (en) | 2020-03-24 |
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