CN108435273B - Low-loss coix seed shelling millstone combination - Google Patents
Low-loss coix seed shelling millstone combination Download PDFInfo
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- CN108435273B CN108435273B CN201810341711.3A CN201810341711A CN108435273B CN 108435273 B CN108435273 B CN 108435273B CN 201810341711 A CN201810341711 A CN 201810341711A CN 108435273 B CN108435273 B CN 108435273B
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- disc
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- 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
- B02B3/02—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of discs
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Abstract
The invention relates to a low-loss coix seed shelling millstone combination, and belongs to the technical field of agricultural machinery. The shelling millstone combination comprises a pair of static discs and a movable disc which can rotate relatively, and is characterized in that: the static disc and the movable disc are respectively provided with a polyurethane peripheral working surface, the peripheral working surface is formed by radial arc grooves and arc ribs which are distributed at intervals, the arc ribs are provided with radial eccentric holes deviating from the symmetrical central line of the arc ribs, and the deviation directions of the radial eccentric holes of the static disc and the movable disc are respectively the same as and opposite to the rotation direction of the movable disc. The invention ensures that the effective extrusion of the coix seed shells obviously improves the threshing rate and also avoids excessive extrusion of the extruded coix seeds to greatly reduce the crushing rate by skillfully utilizing the rigidity difference of the materials at two sides of the eccentric holes.
Description
Technical Field
The invention relates to a shelling mill combination, in particular to a low-loss coix seed shelling mill combination, and belongs to the technical field of agricultural machinery.
Background
The coix seed shelling processing is an essential important link for coix seed medicine and eating, and the operation quality of coix seed shelling equipment is a key for influencing the coix seed quality and commercialization. According to the knowledge of the applicant, researches on special unshelling processing technology, process and equipment of coix seeds are less for a long time, and the unshelling processing quality of coix seeds is poor due to irregular appearance, firm shell and flexible material characteristics of coix seeds, so that the unshelling processing quality of coix seeds is low, the primary unshelling rate is low, the breakage rate is high, and the unshelling of coix seeds after screening is often required, so that the operation efficiency is low, the quality of coix seeds is poor, and the unshelling processing technology becomes one of technical bottlenecks for restricting the healthy development of the industry.
The search shows that the Chinese patent application with the application number of 201110139722.1 discloses a basic structure of a pearl barley sheller, a fixed grinding disc and a movable grinding disc corresponding to the fixed grinding disc are arranged below an upper cover of a shell, innovation is focused on a grinding disc, the movable grinding disc consists of a rigid disc and an elastic friction plate, the elastic friction plate is fixed on the rigid disc, and pearl barley is shelled under the combined action of the fixed grinding disc and the elastic friction plate. Thereafter, the chinese patent application of application No. 201410049465.6 discloses a huller for pearl barley or buckwheat, which further improves a grinding disc, wherein an arc-shaped grid is arranged on the upper plane of a movable disc arranged below a static disc, and the arc-shaped grid takes the center of the movable disc as an arc center. Then, the Chinese patent application with the application number of 201711040526.2 provides a more specific technical scheme for the clearance, the materials and the like of the grinding disc.
Although people realize that the problems of improving the threshing performance and reducing the breakage rate are solved properly aiming at the special material characteristics of the coix, the key is that the millstone is provided with a plurality of positive schemes, however, practice shows that the improvement of the threshing performance and the reduction of the breakage rate still have room for improvement.
Disclosure of Invention
The invention aims at: aiming at the problems of the technology, a low-loss coix seed shelling millstone combination which can remarkably improve the threshing rate and greatly reduce the crushing rate is provided, so that the coix seed quality is effectively improved.
In order to achieve the aim, the basic technical scheme of the low-loss coix seed shelling millstone combination is as follows: the rotary polyurethane rotary disc comprises a pair of fixed discs and a movable disc which can rotate relatively, wherein the fixed discs and the movable disc are respectively provided with matched polyurethane peripheral working surfaces, each peripheral working surface is formed by radial arc grooves and arc ribs which are distributed at intervals, the arc ribs are provided with radial eccentric holes deviating from the symmetrical central lines of the arc ribs, and the deviating directions of the radial eccentric holes of the fixed discs and the movable disc are respectively the same as and opposite to the rotating directions of the movable disc.
During shelling, the coix seeds entering the working face are extruded and crushed between areas with higher hardness and rigidity due to thicker wall thickness in the rotating process of the movable plate, namely, the hard shell is firstly far away from the eccentric holes at the upper convex rib and the lower convex rib of the static plate and the movable plate, and the removed coix seeds are in two motion states under the continuous rotation of the movable plate and the pushing of subsequent materials: part of coix seeds enter a gap between the upper convex ribs and the lower convex ribs and are gradually discharged under the pushing of subsequent materials; the rotation of a part of the coix seed follow-up disc which is separated out enters a region with thinner wall thickness and weaker rigidity adjacent to the two eccentric holes, and the material is easy to instantaneously deform at the region, so that the separated and weaker coix seed is effectively protected from being broken, and the coix seed is gradually discharged under the pushing of the subsequent material. Therefore, the invention skillfully utilizes the rigidity difference of the materials at two sides of the hole, not only ensures the effective extrusion of the coix seed shell and obviously improves the threshing rate, but also avoids the excessive extrusion of the extruded coix seed and greatly reduces the crushing rate.
The invention is further perfected as follows: the stainless steel upper disc body lower surface of the static disc and the stainless steel lower disc body upper surface circumference of the movable disc are respectively provided with radial caulking grooves which are distributed at intervals, and the polyurethane circumference working surface is rooted in the caulking grooves.
The density of the polyurethane is 1-1.2g/cm 3 The hardness is 60-70A.
The inner end of the circular arc convex rib of the static disc is provided with a circular arc flange adjacent to one side of the radial eccentric blind hole.
The radial eccentric hole is a radial eccentric blind hole, and the outer diameters of the static disc and the movable disc are equal.
The radius of the arc groove is smaller than that of the arc convex rib, and a crescent gap is formed between the arc groove and the arc convex rib.
The caulking grooves are arc caulking grooves and flat bottom caulking grooves which are arranged at intervals.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is a schematic diagram of the structure of the movable disc in the embodiment of fig. 1.
Fig. 4 is a schematic view of the static disc structure in the embodiment of fig. 1.
Fig. 5 is a schematic perspective view of the movable disk in the embodiment of fig. 1.
Fig. 6 is a schematic perspective view of the static disc of the embodiment of fig. 1.
Fig. 7 is a schematic structural diagram of the working state of the embodiment of fig. 1.
Fig. 8 is a schematic view of the cross-sectional A-A structure of fig. 7.
In the figure: 1. the feeding hopper 2, the adjusting handle 3, the storage bin 4, the static disc mounting seat 5, the static disc 6, the static disc fixing seat 7, the movable disc 8, the movable disc supporting seat 9, the rotating shaft 10, the driving belt wheel 11 and the discharging hopper.
Detailed Description
The low-loss coix seed shelling millstone combination in the embodiment is shown in fig. 1 to 6, and comprises a pair of fixed discs 5 and a movable disc 7 which can rotate relatively, wherein the fixed discs 5 are arranged at the upper part and the lower part of the movable disc 7, and the outer diameters of the two discs are equal.
The upper surface of the stainless steel upper disc body 5-1 of the static disc 5 and the circumference of the stainless steel lower disc body 7-1 of the movable disc 7 are respectively provided with radial alternate caulking grooves, the preferred alternate arc caulking groove Y and the flat bottom caulking groove H are respectively formed into a polyurethane circumference lower attaching ring 5-2 planted in the caulking groove and a circumference through an injection molding processThe ring is fitted with the ring 7-2, thereby ensuring the desired bonding rigidity. The repeated test shows that the density of the polyurethane is 1-1.2g/cm 3 The hardness is preferably 60-70A, because the polyurethane is slightly harder than the coix seed shell in the extrusion state, the effective shelling can be ensured, and the coix seed can be prevented from being damaged as much as possible.
The lower peripheral attaching ring 5-2 and the upper peripheral attaching ring 7-2 are respectively provided with a peripheral working surface formed by radial arc grooves and arc ribs which are distributed at intervals, and the radius R of the arc grooves is smaller than the radius R of the arc ribs, so that a crescent-shaped gap A1 is formed between the two. The circular arc convex ribs of the lower peripheral attaching ring 5-2 and the upper peripheral attaching ring 7-2 are respectively provided with radial eccentric blind holes 5-3 and 7-3 deviating from the symmetrical central line of the circular arc convex ribs, so that the coix seeds are prevented from entering the holes. The radial eccentric blind holes of the static disc 5 and the dynamic disc 7 deviate in the same and opposite directions as the rotational direction X of the dynamic disc, respectively, i.e. the radial eccentric blind holes 5-3 of the static disc 5 deviate towards the rotational direction of the dynamic disc and the radial eccentric blind holes of the dynamic disc 7 deviate towards the rotational direction of the dynamic disc, thereby forming a relatively rigid area A2 between thicker walls and a relatively flexible area A3 between thinner walls when the dynamic disc and the static disc are engaged. Referring to fig. 2, the embodiment is further perfected on the basis of the above, and the inner end of the circular arc convex rib of the static disc 5 is provided with a circular arc flange 7-4 adjacent to one side of the radial eccentric blind hole, so that the function of preventing unshelling coix seeds from directly entering the relatively flexible area A3 is achieved, and the unshelling coix seeds are ensured to enter the rigid area A2 first.
When the grinding disc combination is used, the grinding disc combination of the embodiment is installed in a shelling bin, and as shown in fig. 7 and 8, the shelling bin consists of a bin 3, a feed hopper 1 fixed at the top of the bin 3 and a discharge hopper 11 fixed at the bottom of the bin 3. An annular static disc fixing seat 6 fixed at the upper end of the storage bin 3 is arranged below the storage bin 1, a static disc mounting seat 4 is embedded in the static disc fixing seat 6, and a static disc 5 is fixed on the lower surface of the static disc mounting seat 4. The outlet at the bottom of the hopper 1 is communicated with the central hole of the static disc 5, and the central hole of the static disc 5 is gradually widened from top to bottom and is in a bell mouth shape, so that an annular lower surface with the width of B is formed. The inside of the stock bin 3 is fixed with a plate-shaped movable disc supporting seat 8, the middle part of the movable disc supporting seat 8 supports a vertical rotating shaft 9 through a bearing, the upper end of the rotating shaft 9 is fixedly connected with a movable disc 7, and the lower end is provided with a driving belt wheel 11.
During shelling, coix seeds from a feeding hopper enter a working surface between a movable millstone and a static millstone, during clockwise rotation of the movable millstone, a hard shell of the coix seeds is extruded and crushed between relatively rigid areas firstly, and under the continuous rotation of the movable millstone and the pushing of subsequent materials, the crushed shell is discharged firstly into a crescent gap due to the fact that the volume is smaller than that of the coix seeds, and the removed coix seeds are gradually discharged along with the crescent gap, and even if the coix seeds are not discharged in time, the coix seeds enter the relatively flexible areas and are gradually discharged, and finally are output through a discharge hole. Because the polyurethane in the area is slightly extruded to generate larger deformation, most of coix seeds are shelled or cracked after primary shelling, even if the coix seeds enter a relatively flexible area, the coix seeds can be separated out by slightly extruding and forcing, so that the additional extrusion of the coix seeds is obviously reduced, and the breakage of the coix seeds is effectively inhibited.
Practice proves that the effective extrusion of the coix seed shells is ensured, the threshing rate is obviously improved, excessive extrusion of the coix seeds is avoided, and the crushing rate is greatly reduced.
Claims (7)
1. The utility model provides a low loss coix seed shelling mill combination, includes the fixed dish of pair and the movable dish of relative rotation, its characterized in that: the static disc and the movable disc are respectively provided with a matched polyurethane peripheral working surface, the peripheral working surface is formed by radial arc grooves and arc ribs which are distributed at intervals, the arc ribs are provided with radial eccentric holes deviating from the symmetrical central line of the arc ribs, and the deviation directions of the radial eccentric holes of the static disc and the movable disc are respectively the same as and opposite to the rotation direction of the movable disc.
2. The low loss coix seed husking millstone assembly of claim 1, wherein: the stainless steel upper disc body lower surface of the static disc and the stainless steel lower disc body upper surface circumference of the movable disc are respectively provided with radial caulking grooves which are distributed at intervals, and the polyurethane circumference working surface is rooted in the caulking grooves.
3. The low loss coix seed husking millstone assembly of claim 2, wherein: the ammonia polymerThe density of the ester is 1-1.2g/cm 3 The hardness is 60-70A.
4. A low loss coix seed husking mill combination according to claim 2 or 3, wherein: the inner end of the circular arc convex rib of the static disc is provided with a circular arc flange adjacent to one side of the radial eccentric blind hole.
5. The low loss coix seed husking millstone assembly of claim 4, wherein: the radial eccentric hole is a radial eccentric blind hole, and the outer diameters of the static disc and the movable disc are equal.
6. The low loss coix seed husking millstone assembly of claim 5, wherein: the radius of the arc groove is smaller than that of the arc convex rib, and a crescent gap is formed between the arc groove and the arc convex rib.
7. The low loss coix seed husking millstone assembly of claim 6, wherein: the caulking grooves are arc caulking grooves and flat bottom caulking grooves which are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341711.3A CN108435273B (en) | 2018-04-17 | 2018-04-17 | Low-loss coix seed shelling millstone combination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810341711.3A CN108435273B (en) | 2018-04-17 | 2018-04-17 | Low-loss coix seed shelling millstone combination |
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| CN108435273A CN108435273A (en) | 2018-08-24 |
| CN108435273B true CN108435273B (en) | 2023-09-12 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR684966A (en) * | 1929-11-14 | 1930-07-03 | Internat Pulverising & Grindin | Improvements to disintegrating machines, particularly applicable to disintegrating rubber |
| US2791254A (en) * | 1954-03-10 | 1957-05-07 | Carl J Crane | Resilient disc type seed sheller |
| JPH10248513A (en) * | 1997-03-05 | 1998-09-22 | Suzuyo Kogyo Kk | Hulling block for swelled seed hulling device |
| CN101342504A (en) * | 2008-08-07 | 2009-01-14 | 西安建筑科技大学 | High-voltage panel type grinding equipment and its processing method |
| CN102240578A (en) * | 2011-05-27 | 2011-11-16 | 锦州俏牌机械有限公司 | Coix seed sheller |
| CN103637362A (en) * | 2013-11-11 | 2014-03-19 | 宁波市鄞州云帆工程咨询有限公司 | Anti-bursting batch processing shell breaking device |
| CN203505498U (en) * | 2013-10-18 | 2014-04-02 | 陕西科技大学 | Eccentric extrusion type walnut shell cracking machine with roller |
| CN203577871U (en) * | 2013-11-01 | 2014-05-07 | 安徽燕之坊食品有限公司 | Low-noise material grinding disk |
| CN103816958A (en) * | 2014-02-13 | 2014-05-28 | 农业部南京农业机械化研究所 | Sheller for barley or buckwheat |
| CN105942548A (en) * | 2016-04-26 | 2016-09-21 | 农业部南京农业机械化研究所 | Low-loss peanut seed shelling device |
| CN106820174A (en) * | 2016-12-27 | 2017-06-13 | 重庆顺泰食品有限公司 | Peanut device for peeling |
| CN208627376U (en) * | 2018-04-17 | 2019-03-22 | 农业部南京农业机械化研究所 | A kind of low damage coix lacryma-jobi shelling mill combination |
-
2018
- 2018-04-17 CN CN201810341711.3A patent/CN108435273B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR684966A (en) * | 1929-11-14 | 1930-07-03 | Internat Pulverising & Grindin | Improvements to disintegrating machines, particularly applicable to disintegrating rubber |
| US2791254A (en) * | 1954-03-10 | 1957-05-07 | Carl J Crane | Resilient disc type seed sheller |
| JPH10248513A (en) * | 1997-03-05 | 1998-09-22 | Suzuyo Kogyo Kk | Hulling block for swelled seed hulling device |
| CN101342504A (en) * | 2008-08-07 | 2009-01-14 | 西安建筑科技大学 | High-voltage panel type grinding equipment and its processing method |
| CN102240578A (en) * | 2011-05-27 | 2011-11-16 | 锦州俏牌机械有限公司 | Coix seed sheller |
| CN203505498U (en) * | 2013-10-18 | 2014-04-02 | 陕西科技大学 | Eccentric extrusion type walnut shell cracking machine with roller |
| CN203577871U (en) * | 2013-11-01 | 2014-05-07 | 安徽燕之坊食品有限公司 | Low-noise material grinding disk |
| CN103637362A (en) * | 2013-11-11 | 2014-03-19 | 宁波市鄞州云帆工程咨询有限公司 | Anti-bursting batch processing shell breaking device |
| CN103816958A (en) * | 2014-02-13 | 2014-05-28 | 农业部南京农业机械化研究所 | Sheller for barley or buckwheat |
| CN105942548A (en) * | 2016-04-26 | 2016-09-21 | 农业部南京农业机械化研究所 | Low-loss peanut seed shelling device |
| CN106820174A (en) * | 2016-12-27 | 2017-06-13 | 重庆顺泰食品有限公司 | Peanut device for peeling |
| CN208627376U (en) * | 2018-04-17 | 2019-03-22 | 农业部南京农业机械化研究所 | A kind of low damage coix lacryma-jobi shelling mill combination |
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| CN108435273A (en) | 2018-08-24 |
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