CN201299011Y - Grind-and-rub type grain threshing device - Google Patents
Grind-and-rub type grain threshing device Download PDFInfo
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- CN201299011Y CN201299011Y CN 200820106394 CN200820106394U CN201299011Y CN 201299011 Y CN201299011 Y CN 201299011Y CN 200820106394 CN200820106394 CN 200820106394 CN 200820106394 U CN200820106394 U CN 200820106394U CN 201299011 Y CN201299011 Y CN 201299011Y
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- grinding
- milling roller
- threshing
- turbogrid plates
- grain
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Abstract
The utility model relates to agricultural machinery field and in particular relates to a grind-and-rub type grain threshing device which solves the problems of high percentage of damage, high rate of loss, poor threshing performance and complicated operation of the existing grain threshing device. The grind-and-rub type grain threshing device comprises a frame and a principal shaft; a feed hopper is fixed above the frame and a feeding device is arranged below the feed hopper; a tapered grinding roller is arranged below the feeding device; a tapered grinder-vein latticed plate fixed with the principal shaft is arranged below the grinding roller; and the material outlet of the feeding device is located in the clearance between the grinding roller and the material inlet of the tapered grinder-vein latticed plate. By making use of the matching of the grinding roller and the latticed plate, the grain threshing device grinds the grains between the grinding roller and the latticed plate and conveys the grains to the places around gradually, thus realizing grinding and rubbing the grains. Meanwhile, the processes of separating the millets with the threshing yard and separating the threshing yard with the millet sprays can be finished at one time. The grain threshing device avoids the bad phenomena of grinding the rice and braiding when the millet sprays are high in water content, improves the threshing performance, reduces the loss rate and the percentage of damage, and improves the threshing quality.
Description
Technical field
The utility model relates to agricultural mechanical field, is specially a kind of grinding-rubbing type millet threshing mechanism that is suitable for small coarse cereals crop threshings such as millet.
Background technology
At present, known crop sheller unit is mainly by principles such as impacting, rub, curry, realization grain separates with grain ear, the primary structure form comprises sheller units such as drum with rasp bars formula, nail tooth drum formula, axial flow cylinder-type, double drum type, arch dental roller formula, generally form by rotary drum and fixed lattice-shaped notch board, by regulating the size in the entrance and exit gap between drum rotation speed and cylinder and the notch board, satisfy Different Crop threshing and the requirement that separates.Difference according to crop flows to is divided into different modes such as cutting streaming, axial-flow type again.Traditional sheller unit, second cosmic velocity is higher, can reach 14～17m/s, and fixed railing form concave grate size is bigger, is difficult to adapt to the threshing requirement of particle diameter less than fine grain crops such as the millet of 2.5mm, broomcorn millets, mainly shows:
(1) percentage of damage height, even can cause millet " husk rice " phenomenon;
(2) percent of loss height, because millet seed particle diameter is less, the air-proof condition of traditional sheller unit is not suitable for the requirement of grain threshing, causes bigger threshing loss;
(3) threshing performance is low, because the biological physiology characteristic of millet is special, millet and paddy sign indicating number to be connected power strong, and between paddy sign indicating number and the grain ear to be connected power little, therefore the paddy sign indicating number very easily separates with grain ear, but millet is difficult with separating of paddy sign indicating number, during the conventional method threshing, need carry out the secondary threshing in large quantities, be difficult to guarantee threshing performance.Carry out the innovation and the design of millet threshing mechanism, significant to satisfying the level of farming mechanization of producing urgent need and improving this type of crop.
Summary of the invention
The utility model exists percentage of damage height, percent of loss height and problems such as threshing performance is low, complex operation in order to solve existing grain threshing device, a kind of grinding-rubbing type millet threshing mechanism of version novelty is provided, disposablely finish millet and separate with grain ear with paddy sign indicating number, paddy sign indicating number, and can avoid millet " husk rice " phenomenon, improve threshing performance, reduce percent of loss and percentage of damage.
The utility model is to adopt following technical scheme to realize: grinding-rubbing type millet threshing mechanism, comprise sealed frame and run through and be arranged in the frame and by the main shaft of driving mechanisms control, the frame upper fixed has feeding hopper, and the feeding hopper below is provided with the feeding unit that is contained on the main shaft; Feeding unit below and be positioned at and be connected with link on the main shaft is provided with the taper milling roller of being fixed by rolling bearing supporting, axle head and link on the link; The milling roller below is provided with frame and fixes, whole tapered mill line formula Turbogrid plates; The material outlet of feeding unit is between the material inlet gap of milling roller and mill line formula Turbogrid plates.The utility model is to design according to the operation principle that rolls threshing and traditional stone mill on the artificial field, specific constructive form is a milling roller when self axis is done to roll, make revolution motion around main shaft, cooperate with the mill line formula Turbogrid plates that are positioned at its underpart, the cereal that is in is therebetween rolled repeatedly, progressively to carrying all around, milling roller has concurrently and rolls and the two kinds of motion states of sliding, realization rolls and rubbing millet, the grain of taking off falls into follow-up cleaning plant by mill line formula Turbogrid plates, remaining grain ear and paddy sign indicating number from around outside the discharge machine, realize threshing.Material is forced evenly to enter by the feeding unit of the alignment of shafts during work.In the said process, the milling roller of rotation and fixing mill line formula Turbogrid plates are pyramidal structure, and the damage that can avoid millet is arranged like this.
Described milling roller outer surface is provided with the projection that formula in the shape of a spiral distributes, and height of projection is 1.3-1.6mm, is convenient to roll in the threshing course material and is carried to the exit by inlet.
Cause extruding in the threshing course and influence the normal rolling of milling roller, guarantee rolling effect simultaneously, the active length L of milling roller is at least 400mm, the small end radius r
1' be 30mm, small end revolution radius r
1Be 147mm, big end revolution radius r
2Be 521mm, milling roller and the material inlet gap delta of grinding line formula Turbogrid plates
1Be 28-32mm, outlet gap δ
2Be 3-5mm, the angle α of milling roller axis and main-shaft axis is 70-75 °.
If α is bigger, grain ear freely glides easily, is difficult to guarantee to roll the threshing time; If α is less, milling roller might be in the pure rolling state, the mechanical condition that does not possess mass transport, material in the continuous access to plant of intractable, so roll and the rubbing effect in order to make milling roller avoid the pure rolling angle, to have concurrently in the work, described milling roller is 30mm with the best material inlet gap of mill line formula Turbogrid plates, best outlet gap is 4mm, and the optimum angle α of milling roller axis and main-shaft axis is 72 °.To be the applicant get through test of many times and summary of experience for this.After above-mentioned optimum structure is determined, can calculate other physical dimension of milling roller according to force analysis and known theoretical foundation, specific as follows:
The cone angle of milling roller
Determine the big end radius of milling roller thus:
r
2′＝r
1′+L·tanγ＝30+400×tan3.72＝56(mm)。
Described mill line formula Turbogrid plates are to constitute by grinding line shape reinforcement disc and the mutual cross-under of steel wire, in order to make grain ear in the process of rolling, can successfully move to outlet from inlet, the radius of curvature of mill line is 350-360mm, the best is 357mm, the cone-apex angle of mill line formula Turbogrid plates is 140-150 °, the best is 144 °, otherwise grain ear easily self-locking takes place and can not outwards move.
Described mill line formula Turbogrid plates are connected with frame by adjusting pad, are convenient to regulate the gap between milling roller and the Turbogrid plates, to satisfy the needs of different cultivars, different growth conditions grain threshings.
In order further to optimize the structure of sheller unit, improve its function, described sheller unit also comprises grain cleaning machine, this cleaning plant comprises the stock guide that is arranged on mill line formula Turbogrid plates below and is positioned at milling roller and the spiketooth type rethreshing device of below, mill line formula Turbogrid plates material outlet gap that the spiketooth type rethreshing device is fixed by bracing frame and main shaft; Spiketooth type rethreshing device below is provided with residual fringe throwing and send device and residual fringe outlet; Stock guide and residual fringe are provided with the rotary screen that flexibly connects with main shaft under throwing and sending device, the rotary screen below is distributed with fan, the outer border of rotary screen is provided with assorted surplus conveying plant and assorted surplus outlet, and assorted surplus conveying plant inner ring is provided with grain conveyor and grain outlet.Can further realize grain and remaining grain ear and paddy sign indicating number, surplus the separating of mixing by cleaning plant.Described spiketooth type rethreshing device, residual fringe are thrown and are sent device to be existing known configurations; can be spiketooth type structure on existing corn or the wheat thresher such as the spiketooth type rethreshing device, and residual fringe is thrown and is sent device can be to utilize the blower fan principle to carry out some structures that residual fringe separates.
Compared with prior art, sheller unit described in the utility model adopts special structure design, (paddy sign indicating number and grain ear are easily separated with the specific (special) requirements that is fit to grain threshing, millet separates with paddy sign indicating number difficulty), utilize cooperatively interacting of milling roller and Turbogrid plates, the cereal that is in is therebetween rolled repeatedly, progressively to carrying all around, milling roller has concurrently and rolls and the two kinds of motion states of sliding, realization rolls and rubbing millet, simultaneously by follow-up cleaning plant, finish millet and paddy sign indicating number once, the bad phenomenon such as " around plaits " when " husk rice " and grain ear water content are higher in the grain threshing has been avoided in the separation process of paddy sign indicating number and grain ear, has improved threshing performance, percent of loss and percentage of damage have been reduced, improved the threshing quality greatly, significant to satisfying the level of farming mechanization of producing urgent need and improving this type of crop.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of milling roller among Fig. 1
Fig. 3 is the structural representation of mill line formula Turbogrid plates among Fig. 1
Fig. 4 is the threshing principle schematic of sheller unit described in the utility model
Fig. 5 is the fundamental diagram of milling roller
Among the figure: 1-frame, 2-main shaft, 3-feeding hopper, 4-feeding unit, the 5-link, 6-rolling bearing, 7-milling roller, 8-mill line formula Turbogrid plates, 9-material inlet gap, 10-material outlet gap, 11-strengthens disc, and 12-adjusts pad, the 13-stock guide, 14-spiketooth type rethreshing device, the 15-bracing frame, the residual fringe of 16-is thrown and is sent device, the residual fringe outlet of 17-, 18-rotary screen, 19-fan, the 20-surplus conveying plant of mixing, 21-grain conveyor, 22-grain outlet, the 23-surplus outlet of mixing.
Embodiment
Grinding-rubbing type millet threshing mechanism, as shown in Figure 1, comprise sealed frame 1 and run through and be arranged in the frame and by the main shaft 2 of driving mechanisms control, frame 1 upper fixed has feeding hopper 3, feeding hopper 3 belows are provided with the feeding unit 4 that is contained on the main shaft 2, adopt sped structure, specifically can be the welded type spiral plate, external diameter is 240mm; Feeding unit 4 belows and be positioned at and be connected with link 5 on the main shaft 2 are provided with the taper milling roller 7 that is passed through bolt by rolling bearing supporting 6, axle head and link 5 on the link 5; Milling roller 7 belows are provided with and frame 1 fixing, whole tapered mill line formula Turbogrid plates 8; The material outlet of feeding unit 4 is between the material inlet gap 9 of milling roller 7 and mill line formula Turbogrid plates 8.
In the said structure, shown in Fig. 2,5, it is the steel plate composition welded type pyramidal structure of 1.5mm that milling roller adopts thickness, support by rolling bearing, axle head by bolt connecting mode be fixed on the affixed milling roller link of main shaft on, make revolution motion with main shaft,, freely roll around self axis simultaneously by the rubbing action of material.The active length L of milling roller is at least 400mm, the small end radius r
1' be 30mm, small end revolution radius r
1Be 147mm, big end revolution radius r
2Be 521mm, angle α the best of milling roller axis and main shaft 2 axis is 72 °, and milling roller 7 outer surfaces are provided with the projection that formula in the shape of a spiral distributes, and height of projection is 1.3-1.6mm, is convenient to roll in the threshing course material and is carried to the exit by inlet.
As shown in Figure 3, it is that the steel wire of 2.5mm is strengthened composition welded structures such as disc with the mill line shape that thickness is 3mm that mill line formula Turbogrid plates adopt diameter, steel wire penetrates in each plate hole, annular configuration, the grid of formation pass through to be of a size of 5mm, mill line radius of curvature is 350-360mm, whole tapered structure, cone-apex angle is 140-150 °, is connected with frame by adjusting pad, material inlet gap the best is 30mm between milling roller and the mill line formula Turbogrid plates, and material outlet gap the best is 4mm.
In order further to optimize the structure of this device, for convenience detach, the parts in the frame are installed, the cover plate of frame is movable, all adopts the angle steel of 40 * 40 * 5mm and steel plate that thickness is 1mm to form welded structure.
Grinding pressure is bigger when considering work, and main shaft adopts the cone bearing supporting, and its working speed is 200r/min.
In order further to improve the function of this sheller unit, also comprise grain cleaning machine, this cleaning plant comprises the stock guide 13 that is arranged on mill line formula Turbogrid plates 8 belows and is positioned at milling roller and mill line formula Turbogrid plates material outlet gap delta
2The spiketooth type rethreshing device 14 of 10 belows, the spiketooth type rethreshing device is fixing with main shaft 2 by bracing frame 15; Spiketooth type rethreshing device 14 belows are provided with residual fringe throwing and send device 16 and residual fringe outlet 17; Stock guide 13 and residual fringe are provided with the rotary screen 18 that flexibly connects with main shaft 2 under throwing and sending device 16, the rotary screen below is distributed with fan 19, the outer border of rotary screen is provided with assorted surplus conveying plant 20 and assorted surplus outlet 23, and assorted surplus conveying plant 20 inner rings are provided with grain conveyor 21 and grain outlet 22.It is the steel plate making of 1mm that grain outlet, assorted surplus outlet, residual fringe outlet etc. all adopt thickness.Grain conveyor, assorted surplus conveying plant are annular scraper formula structure, for fear of the damage to material, adopt rubber flap.
As shown in Figure 4, reflected the operation principle of sheller unit, shown in arrow among the figure, cut the grain ear of stem stalk, entered spiral feeding unit 4,, made the stem stalk enter the sheller unit feeding mouth forcibly by the propelling movement effect of this device by feeding hopper 3.Cooperate with mill line formula Turbogrid plates 8 by milling roller 7, the grain ear that enters is therebetween rolled and the rubbing effect, the grain of from grain ear and paddy sign indicating number, separating, by grinding line formula Turbogrid plates 8 after stock guide 13 enters grain cleaning machine, remaining grain ear and paddy sign indicating number progressively are pushed to outlet all around and are entered spiketooth type rethreshing device 14, through the further threshing of this device, residual fringe is thrown by residual fringe and is sent outside the device 16 discharge machines.The emersion object that enters cleaning plant is cleaned under the effect of rotary screen 18 and fan 19, and is transported to outside the machine through grain outlet 22, assorted surplus outlet 23 by grain conveyor 21, assorted surplus conveying plant 20 respectively, finishes threshing course.The all working parts all are connected on the main shaft 2, can be rotated by motor-driven, and its working speed is 200r/min.
Claims (8)
1, a kind of grinding-rubbing type millet threshing mechanism, comprise sealed frame (1) and run through and be arranged in the frame and by the main shaft (2) of driving mechanisms control, it is characterized in that frame (1) upper fixed has feeding hopper (3), feeding hopper (3) below is provided with the feeding unit (4) that is contained on the main shaft (2); Feeding unit (4) below and be positioned at and be connected with link (5) on the main shaft (2), link (5) is gone up the taper milling roller of being fixed by rolling bearing (6) supporting, axle head and link (5) (7) is set; Milling roller (7) below is provided with and fixing, the whole tapered mill line formula Turbogrid plates (8) of frame (1); The material outlet of feeding unit (4) is positioned between the material inlet gap (9) of milling roller (7) and mill line formula Turbogrid plates (8).
2, grinding-rubbing type millet threshing mechanism according to claim 1 is characterized in that milling roller (7) outer surface is provided with the projection of formula distribution in the shape of a spiral, and height of projection is 1.3-1.6mm.
3, grinding-rubbing type millet threshing mechanism according to claim 1 and 2 is characterized in that the active length L of milling roller (7) is at least 400mm, the small end radius r
1' be 30mm, small end revolution radius r
1Be 147mm, big end revolution radius r
2Be 521mm, milling roller (7) and the material inlet gap delta of grinding line formula Turbogrid plates (8)
1(9) be 28-32mm, the material outlet gap delta
2(10) be 3-5mm, the angle α of milling roller axis and main shaft (2) axis is 70-75 °.
4, grinding-rubbing type millet threshing mechanism according to claim 1 and 2, it is characterized in that described mill line formula Turbogrid plates (8) are to strengthen disc (11) by mill line shape to constitute with the mutual cross-under of steel wire, the radius of curvature of mill line is 350-360mm, and the cone-apex angle of mill line formula Turbogrid plates (8) is 140-150 °.
5, grinding-rubbing type millet threshing mechanism according to claim 1 and 2 is characterized in that grinding line formula Turbogrid plates (8) and is connected with frame (1) by adjusting pad (12).
6, grinding-rubbing type millet threshing mechanism according to claim 1 and 2, it is characterized in that this sheller unit also comprises grain cleaning machine, this cleaning plant comprises the stock guide (13) that is arranged on mill line formula Turbogrid plates (8) below and is positioned at milling roller and mill line formula Turbogrid plates material outlet gap delta
2(10) Xia Fang spiketooth type rethreshing device (14), the spiketooth type rethreshing device is fixing by bracing frame (15) and main shaft (2); Spiketooth type rethreshing device (14) below is provided with residual fringe throwing and send device (16) and residual fringe outlet (17); Stock guide (13) and residual fringe are provided with the rotary screen (18) that flexibly connects with main shaft (2) under throwing and sending device (16), the rotary screen below is distributed with fan (19), the outer border of rotary screen is provided with assorted surplus conveying plant (20) and assorted surplus outlet (23), and assorted surplus conveying plant (20) inner ring is provided with grain conveyor (21) and grain outlet (22).
7, grinding-rubbing type millet threshing mechanism according to claim 6 is characterized in that grain conveyor (21) and assorted surplus conveying plant (20) are ring-shaped rubber scraper-type structure.
8, grinding-rubbing type millet threshing mechanism according to claim 1 and 2 is characterized in that described feeding unit (4) adopts sped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820106394 CN201299011Y (en) | 2008-10-27 | 2008-10-27 | Grind-and-rub type grain threshing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820106394 CN201299011Y (en) | 2008-10-27 | 2008-10-27 | Grind-and-rub type grain threshing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201299011Y true CN201299011Y (en) | 2009-09-02 |
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ID=41082621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820106394 Expired - Lifetime CN201299011Y (en) | 2008-10-27 | 2008-10-27 | Grind-and-rub type grain threshing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201299011Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835221A (en) * | 2011-06-22 | 2012-12-26 | 海南大学 | Pepper threshing machine |
| CN107960211A (en) * | 2018-01-24 | 2018-04-27 | 深圳润丰投资咨询有限公司 | A kind of agricultural removes separator with beans shell |
| CN107996152A (en) * | 2018-01-23 | 2018-05-08 | 宋若梅 | A kind of shelling of flax separator |
-
2008
- 2008-10-27 CN CN 200820106394 patent/CN201299011Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835221A (en) * | 2011-06-22 | 2012-12-26 | 海南大学 | Pepper threshing machine |
| CN107996152A (en) * | 2018-01-23 | 2018-05-08 | 宋若梅 | A kind of shelling of flax separator |
| CN107960211A (en) * | 2018-01-24 | 2018-04-27 | 深圳润丰投资咨询有限公司 | A kind of agricultural removes separator with beans shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090902 Effective date of abandoning: 20081027 |