LT6280B - The concave for thresfing machines of cereal crops - Google Patents
The concave for thresfing machines of cereal crops Download PDFInfo
- Publication number
- LT6280B LT6280B LT2014111A LT2014111A LT6280B LT 6280 B LT6280 B LT 6280B LT 2014111 A LT2014111 A LT 2014111A LT 2014111 A LT2014111 A LT 2014111A LT 6280 B LT6280 B LT 6280B
- Authority
- LT
- Lithuania
- Prior art keywords
- concave
- drum
- rpb
- threshing
- contour
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/28—Devices for adjusting the concaves
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
Description
Išradimas priklauso žemės ūkio technikai, būtent grūdinių kultūrų kūlimo aparatų mechanizmams. Žinomas kūlimo aparate, aprašytame RU patente Nr. 2119280, TPKK: A 01 F 7/06, A 01 F 29/00, publ. 1998 m.), grotelinis, cilindrinę dalį turintis pobūgnis su pjaunančiomis plokštelėmis, sudarytas iš viršutinės ir apatinės dalių bei mechanizmo, galinčio keisti vienodo tarpo tarp būgno ir pobūgnio dydį. Žinomas techninis sprendimas neužtikrina pilno žemės ūkio augalų -grūdinių kultūrų iškūlimo. Išradimo tikslas - užtikrinti kokybišką, pilną ir efektyvų kūlimo procesą bei pagerinti kūlimo proceso sąlygas. Išradimo tikslui pasiekti grūdinių kultūrų kūlimo aparate pobūgnio plokštuma įgaubta taip, kad sudaromas tarpas tarp kūlimo aparato būgno ir pobūgnio per visą pobūgnio ilgį nuo pobūgnio pradžios iki galo būtų tolygiai mažėjantis ir tiesiai proporcingas kūlimo aparato būgno pasisukimo kampui. Be to, pobūgnio įgaubtos plokštumos profilis nustatytas atliekant paskaičiavimus pagal sekančias formules:Field of the Invention The invention relates to agricultural machinery, in particular to mechanisms for kneading machines for cereals. Known in a threshing machine described in U.S. Pat. 2119280, TPKK: A 01 F 7/06, A 01 F 29/00, publ. 1998), a grating with a cylindrical part with cutting plates, consisting of the upper and lower parts and a mechanism capable of varying the size of the same space between the drum and the cone. A well-known technical solution does not guarantee full crop-grain harvesting. The aim of the invention is to ensure a high quality, complete and effective threshing process and to improve the conditions of the threshing process. In order to achieve the purpose of the invention, the convex plane is concave in the kneading machine of the cereal crop so that the gap between the drum of the kneading machine and the groove is uniformly reduced throughout the length of the knife from the beginning to the end of the knife and is directly proportional to the angle of rotation of the drum of the kneading machine. In addition, the profile of the concave planed plane is determined by the following formulas:
Rpb(<p)=Rb+A(0)+k(cp - <p(0)), kur Rpb - atkarpos OA ilgisRpb (<p) = Rb + A (0) + k (cp - <p (0)), where Rpb is the length of segment OA
Rb - būgno spindulys Δ(0) - Rb ir Rpb skirtumas k - pobūgnio plokštumos profilio kitimo koeficientas apsprendžiantis tarpo tarp būgno ir pobūgnio pokytį kampo matavimo vienetui φ - būgno pasisukimo kampas, φ(0), kai Δ(0) k=A( φ)-Δ(0):φ,Rb - drum radius Δ (0) - Rb and Rpb difference k is the coefficient of variation of the convex plane defining the change in spacing between the drum and the concave unit for the angle unit φ - drum rotation angle φ (0) when Δ (0) k = A ( φ) -Δ (0): φ,
Xpb((p)=Rpb(<p)-cos((p), kai 0<cp<2 rad Ypb(<p)=Rpb(<p)sin(cp), kai 0<cp<2 rad, kur X, Y pobūgnio profilio taškų koordinatės. Išradimas iliustruojamas schema (žr. Fig. 1), kur 1 - kūlimo aparato būgnas, 2 - kūlimo aparato pobūgnio įgaubtos plokštumos profilis, 3 - tarpas tarp būgno ir pobūgnio.Xpb ((p) = Rpb (<p) -cos ((p) when 0 <cp <2 rad Ypb (<p) = Rpb (<p) sin (cp) when 0 <cp <2 rad, where X, Y Shaped Profile Point Coordinates The invention illustrates a schematic (see Fig. 1) where 1 is a drum of a kneading machine, a profile of a concave plane of a kneading machine, and a gap between a drum and a knife.
Brėžinyje koordinačių sistemoje (X; Y) schematiškai pavaizduotas kūlimo aparato būgnas 1 ir jį gaubiančio pobūgnio profilis 2 bei tarpas tarp jų 3. Kad kūlimo procesas būtų kokybiškas, pilnas, svarbu nustatyti, koks turi būti pobūgnio įgaubtos plokštumos profilis ir tuo pačiu plokštumos įgaubimas, kad tarp būgno ir pobūgnio susidarytų optimalus tarpas, nuo kurio priklauso grūdinių kultūrų iškūlimas. Žinoma, kad esant vienodam tarpui tarp būgno ir pobūgnio, kai pobūgnio plokštumos profilis yra apskritimo lankas, nevyksta pilnas grūdinių kultūrų iškūlimas. Todėl buvo atlikti bandymai ir paskaičiavimai pagal žemiau pateikiamas formules, nustatant pobūgnio profilį 2 atžvilgiu būgno sukimosi ašies bei jo pasisukimo kampo φ. Nustatyta, kad tarpas 3 tarp būgno ir pobūgnio turi būti nuo būgno pradžios A iki pabaigos B tolygiai mažėjantis ir tiesiai proporcingas būgno pasisukimo kampui φ.In the drawing, the coordinate system (X; Y) schematically shows the drum 1 of the threshing machine and the profile of the shroud covering it 2 and the gap between them 3. For the quality of the threshing process to be complete, it is important to determine what the profile of the concave concave plane and the concave plane must be. that there is an optimum gap between the drum and the groove, which determines the cropping of the grain crops. It is known that in the same gap between the drum and the cone, when the profile of the convex plane is a circular arc, there is no complete grain crushing. Therefore, tests and calculations were made according to the formulas below to determine the profile of the convex profile 2 relative to the rotational axis of the drum and its turning angle φ. It has been found that the gap 3 between the drum and the drum must be between the start of the drum A and the end B, evenly decreasing and directly proportional to the angle of rotation of the drum φ.
Rpb(<p)=Rb+A(0)+k(<p - <p(0)) k=A( φ)-Δ(0):φRpb (<p) = Rb + A (0) + k (<p - <p (0)) k = A (φ) -Δ (0): φ
Xpb(cp)=Rpb((p)-cos((p), kai 0<cp<2 rad Ypb(cp)=Rpb((p)-sin(<p), kai 0<<p<2 rad, Iš to seka išvada, kad pobūgnio plokštumos profilis neturi būti apskritimo lankas, o pobūgnio profilio taškai neturi būti vienodai nutolęs nuo būgno sukimosi ašies.Xpb (cp) = Rpb ((p) -cos ((p) when 0 <cp <2 rad Ypb (cp) = Rpb ((p) -sin (<p) when 0 << p <2 rad, This leads to the conclusion that the profile of the convex plane must not be a circle arc, and that the points of the convex profile must not be evenly spaced from the axis of rotation of the drum.
Kadangi kuliamos grūdinės kultūros skiriasi dydžiu, todėl, kad kūlimo procesas būtų pilnas, kokybiškas ir be nuostolių, konkrečiu atveju atliekami reikalingi paskaičiavimai pagal pateiktas formules.Because the grain grain is different in size, so that the threshing process is complete, high quality and without loss, the necessary calculations according to the formulas are made in a particular case.
Pareikštas techninis sprendimas sudaro galimybę užtikrinti kokybišką, pilną grūdinių kultūrų iškūlimą, todėl nesusidaro javapjūtės nuostoliai ir išlaidos.The technical solution that has been introduced makes it possible to ensure a high quality, full grain grain crop, which results in no loss of costs and costs.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT2014111A LT6280B (en) | 2014-09-26 | 2014-09-26 | The concave for thresfing machines of cereal crops |
| PCT/LT2015/000002 WO2016048124A1 (en) | 2014-09-26 | 2015-03-19 | The concave for threshing machines of cereal crops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT2014111A LT6280B (en) | 2014-09-26 | 2014-09-26 | The concave for thresfing machines of cereal crops |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| LT2014111A LT2014111A (en) | 2016-04-25 |
| LT6280B true LT6280B (en) | 2016-07-11 |
Family
ID=53276961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LT2014111A LT6280B (en) | 2014-09-26 | 2014-09-26 | The concave for thresfing machines of cereal crops |
Country Status (2)
| Country | Link |
|---|---|
| LT (1) | LT6280B (en) |
| WO (1) | WO2016048124A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2616433A (en) * | 1949-07-08 | 1952-11-04 | Deere & Co | Concave-adjusting means for threshers |
| DE2161745C2 (en) * | 1971-12-13 | 1974-02-14 | Deere & Co., Moline, Ill. (V.St.A.) | Device for adjusting the distance between the threshing drum and the concave of a combine harvester |
| WO2013082236A1 (en) * | 2011-11-29 | 2013-06-06 | Agco Corporation | Constant pressure concave assembly in a combine harvester processing system |
| DE102012210649B4 (en) * | 2012-06-22 | 2018-01-11 | Deere & Company | Tangential threshing unit with a conveyor drum and a threshing or separating drum |
-
2014
- 2014-09-26 LT LT2014111A patent/LT6280B/en not_active IP Right Cessation
-
2015
- 2015-03-19 WO PCT/LT2015/000002 patent/WO2016048124A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| LT2014111A (en) | 2016-04-25 |
| WO2016048124A1 (en) | 2016-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Patent application published |
Effective date: 20160425 |
|
| FG9A | Patent granted |
Effective date: 20160711 |
|
| MM9A | Lapsed patents |
Effective date: 20170926 |