CA2247070A1 - Field unit for harvesting grains - Google Patents
Field unit for harvesting grains Download PDFInfo
- Publication number
- CA2247070A1 CA2247070A1 CA 2247070 CA2247070A CA2247070A1 CA 2247070 A1 CA2247070 A1 CA 2247070A1 CA 2247070 CA2247070 CA 2247070 CA 2247070 A CA2247070 A CA 2247070A CA 2247070 A1 CA2247070 A1 CA 2247070A1
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- Canada
- Prior art keywords
- graff
- harvesting
- straw
- hopper
- crop material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/04—Tractor-driven combines
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
A field harvesting machine is described comprising: (a) a mobile frame adapted to be driven across a field of grain bearing crop material; (b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly; (c) infeed means mounted on the frame for receiving crop material from the harvesting attachment and conveying it generally rearwardly; (d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the infeed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds; (e) a graff collecting means beneath the threshing and separating cylinder; (f) a conveying system for transferring collected graff to a storage hopper; and (g) straw discharge means for discharging the straw component onto the field.
Description
Field Unit For Harvest:ing Grains Field of the Invention This invention relates to an improved field unit far harvesting grain crop:, Background of the Invention Grain is typical~~y harvested using combine harvesters, which thresh the grain in a thresher, then separate the grain from the chaff, straw and weed seeds. The combine harvester keeps the grain and rejects all other matf~rials. The thresher separates the grain from the stalk or pod and, for instance, a degree of separation :is achieved in rotary threshers by using apertures in a thresher tube which allow ~~he passage of grain.
The separation is generally not clean, wish the straw portion including sdme grain and chaff and the gr~~in portion including some chaff and some straw. When the thresher in the form of a cylinder and concave is used, the concave has apertures to pass the grain portion while the straw portion is passed along a straw walker to remove grain from the straw. The grain portion includes chaff, grain and weed seeds, which are passed through a sieve with upwardly blowing air. In this way, chaff, weed seeds and any straw are blown upwardly while the grain falls downwardly for separation. The chaff, straw and weed seeds are left as waste by-products in t:he field., while the grain is transported from the field.
In Canadian Patent Application 2,18C,694., filed July 8, 1995, there is described a harvesting sy~~tem in whicr: straw (or its equivalent.) is separated in the ~ field from a combination of ch~:ff, grain and weed seeds (referred to as "graff"). This graff material is then ta-ansported from the fiel d to a centra:L processing plant where: the grain is separated from the other materials. The>e other materials may include grain leavings, such as srr.all kern:l~ , fir_es, leaves, hulls, stalks, stems, husks and the like, along with chaff and weed seeds.
It is the object: of the present inv~=_ntic~n to provide an improved field unit f:or separating straw in the field from chaff, grain and weed seeds (graff) as w:~l~ as for transporting this graf:f material to a central processing plant.
Summary of the Invention The present invention in its broadesv asc~ect relates to field harvesting mach:~ne comprising: (a) a m:~bile frame adapted to be driven across a field of gr~~in bearing crop material; (b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly; (c'~ infeed means mounted on t:~e :Frame for receiving crop materia=L from the harvesting attachment and canveyirg it generally rearwardly; (d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the inf~eed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds; (e) a graff collecting means beneath the threshing and separating cylinder; (f) a conveyinc sy_~tem for transferring collected g:raff to a storagE: homer; and (g) straw discharce means for d:ischarginc:r th=- straw component onto the field.
A~ important feature of the pres~r~t ir~.vE-:r:tion is the threshing and separating cylinder. This c,y~l:.nd~r is mounted transversely to tl':e c.irection of travel of t't:~e harvesting machine within a c,enerally cylindrical cag:.. This cage includes a concavE~ portion adjacent the crop receiving end of the cyl finder follc~wecl by a separation gr:~t~~. r:or col lecting separated graff material and further fol:Lo~~Je-: by a be>ttom outlet for straw. The rotating cylinder its--~lr ccmprises three portions wh_:_ch align respectively with the concave portion of the cage, the grate portion o~ th_-: cage and the stra~n discharge portion. The portion of tine cylinder, adjacent the cor:cave cage x~ort:ior, includes hel i ca~_ pr::>jections extending from thc~ surface of the cyl ind?r s~;:v~tn rasp--lil~:e surfaces. These are designed to quickly sep:3rate the graff material from the st~~aw and this is typically accomp i fished within about 2~ rf~vo:Lutions of the cylinder. This very quick transfer helps in avoiding excessive disintegration of the straw.
The portion of t~.e rotating cylinder ar~jG.oent the separation grate in:clL.des a series of radial.l~ projecting blades adapted to :7pre:ad the graff material ac=oss the grate portion so that it quickly drops through the crate. Finally, the rotating cylinder includes a series of radial paddles for forcing straw down through the straw outlet ir;~o a straw blower or straw choppE:r/blower which throws tr~:e straw back onto the field.
The graff mats.=_rial that is collected b~nvath the rotating cylinder is moved :oy augers into a convey.i.ng system for transferring the grafj= tc> a storage hopper. A simple mechanical conveying system may be used for this purpose.
Thi s conveying system ma~.~ also include a crud<.=, chaffing system for removing some ~f t_he chaf f contained :_n tk~e graf f material before it enters the c~raf=f storage hopper .
Since chaff can comprise a substanti:~l p}::oportior~ of the graff material collecved beneath the thre,~h:_n,- and separating cylinder, removal of come of the chaff ca:~ '.v!a-.:~e a verb significant affec ~ on the transportat i ou ~eyu . remer_ts for moving the graff r~aterial from the field vn-rt to the central processing plant. Th= chaffing system. allo-ns a farmer to control the volum= of ch<~f f in t:he graf f na ~e:r~ial being transported.
Brief Description of the Drawincxs In the accom~ anying drawings wh=.~ch i l? ~~.zs':rate exemplary embodiments of the present invention:
Fig. 1 is a top plan view of the cor,~p'!ete assembly;
Fig. 2 is a f ront el evati on vie-.a of t~:e complete assembly;
Fig. 3 is a rear elevation view; of t.h=_c_ai:~ processor;
~'ig. 4 is a X~erspective view of thgra~:~ processor rotary cylinder;
Fig. 5 is a t op plan view of the gra:f=: collecting bed;
Fig. 6 is an enc. view of the grain ~_~racessor cylindrical cage;
The separation is generally not clean, wish the straw portion including sdme grain and chaff and the gr~~in portion including some chaff and some straw. When the thresher in the form of a cylinder and concave is used, the concave has apertures to pass the grain portion while the straw portion is passed along a straw walker to remove grain from the straw. The grain portion includes chaff, grain and weed seeds, which are passed through a sieve with upwardly blowing air. In this way, chaff, weed seeds and any straw are blown upwardly while the grain falls downwardly for separation. The chaff, straw and weed seeds are left as waste by-products in t:he field., while the grain is transported from the field.
In Canadian Patent Application 2,18C,694., filed July 8, 1995, there is described a harvesting sy~~tem in whicr: straw (or its equivalent.) is separated in the ~ field from a combination of ch~:ff, grain and weed seeds (referred to as "graff"). This graff material is then ta-ansported from the fiel d to a centra:L processing plant where: the grain is separated from the other materials. The>e other materials may include grain leavings, such as srr.all kern:l~ , fir_es, leaves, hulls, stalks, stems, husks and the like, along with chaff and weed seeds.
It is the object: of the present inv~=_ntic~n to provide an improved field unit f:or separating straw in the field from chaff, grain and weed seeds (graff) as w:~l~ as for transporting this graf:f material to a central processing plant.
Summary of the Invention The present invention in its broadesv asc~ect relates to field harvesting mach:~ne comprising: (a) a m:~bile frame adapted to be driven across a field of gr~~in bearing crop material; (b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly; (c'~ infeed means mounted on t:~e :Frame for receiving crop materia=L from the harvesting attachment and canveyirg it generally rearwardly; (d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the inf~eed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds; (e) a graff collecting means beneath the threshing and separating cylinder; (f) a conveyinc sy_~tem for transferring collected g:raff to a storagE: homer; and (g) straw discharce means for d:ischarginc:r th=- straw component onto the field.
A~ important feature of the pres~r~t ir~.vE-:r:tion is the threshing and separating cylinder. This c,y~l:.nd~r is mounted transversely to tl':e c.irection of travel of t't:~e harvesting machine within a c,enerally cylindrical cag:.. This cage includes a concavE~ portion adjacent the crop receiving end of the cyl finder follc~wecl by a separation gr:~t~~. r:or col lecting separated graff material and further fol:Lo~~Je-: by a be>ttom outlet for straw. The rotating cylinder its--~lr ccmprises three portions wh_:_ch align respectively with the concave portion of the cage, the grate portion o~ th_-: cage and the stra~n discharge portion. The portion of tine cylinder, adjacent the cor:cave cage x~ort:ior, includes hel i ca~_ pr::>jections extending from thc~ surface of the cyl ind?r s~;:v~tn rasp--lil~:e surfaces. These are designed to quickly sep:3rate the graff material from the st~~aw and this is typically accomp i fished within about 2~ rf~vo:Lutions of the cylinder. This very quick transfer helps in avoiding excessive disintegration of the straw.
The portion of t~.e rotating cylinder ar~jG.oent the separation grate in:clL.des a series of radial.l~ projecting blades adapted to :7pre:ad the graff material ac=oss the grate portion so that it quickly drops through the crate. Finally, the rotating cylinder includes a series of radial paddles for forcing straw down through the straw outlet ir;~o a straw blower or straw choppE:r/blower which throws tr~:e straw back onto the field.
The graff mats.=_rial that is collected b~nvath the rotating cylinder is moved :oy augers into a convey.i.ng system for transferring the grafj= tc> a storage hopper. A simple mechanical conveying system may be used for this purpose.
Thi s conveying system ma~.~ also include a crud<.=, chaffing system for removing some ~f t_he chaf f contained :_n tk~e graf f material before it enters the c~raf=f storage hopper .
Since chaff can comprise a substanti:~l p}::oportior~ of the graff material collecved beneath the thre,~h:_n,- and separating cylinder, removal of come of the chaff ca:~ '.v!a-.:~e a verb significant affec ~ on the transportat i ou ~eyu . remer_ts for moving the graff r~aterial from the field vn-rt to the central processing plant. Th= chaffing system. allo-ns a farmer to control the volum= of ch<~f f in t:he graf f na ~e:r~ial being transported.
Brief Description of the Drawincxs In the accom~ anying drawings wh=.~ch i l? ~~.zs':rate exemplary embodiments of the present invention:
Fig. 1 is a top plan view of the cor,~p'!ete assembly;
Fig. 2 is a f ront el evati on vie-.a of t~:e complete assembly;
Fig. 3 is a rear elevation view; of t.h=_c_ai:~ processor;
~'ig. 4 is a X~erspective view of thgra~:~ processor rotary cylinder;
Fig. 5 is a t op plan view of the gra:f=: collecting bed;
Fig. 6 is an enc. view of the grain ~_~racessor cylindrical cage;
Fig. 7 is a f~~ont. elevation view of t:.he drain processor;
and Fig. 8 is a ra-:ar elevation view o~ t:.~ m:bile gra~ff storage hopper.
Description of the Preferred Embodim=r.~s Looking at Fi~~s . 1 a.nd 2 , this syste~a ~>t _~rts with a pick up 10 and header 1'~ oj= kr~awn design. Frorn t~h=~ header 1.1, the crop material is lifted by way of feeder :L2 ir:to a cylindrical processor unit 13.
The processor unit 1.3 is ar.. importan ~ ~o-;lponent of the present invention and serves to (a) thresz or separate the grain. kernels from thf=_ chaff and (b) separate out the straw from the rest of the ~~raff . Thi.s processsr includes a cylindrical cage 20 w:~ich surrounds a rotary cylinder 14. The cage has a first concave panel portion: 21 adjacent the infeed end of the processor and this i~~ followed by a second grate portion 22. By tre time the crop material has passed over the concave portion and the crate portio:~, about 95~ of thF~
threshing action is completed witri most c:f tr:a graff material fall -ing through it to augf:rs at th=-. b~~tor- ,-;f the processor.
Tne first ~02. ~.10.': O i= the cezC~~ _n :luC; ~.'-' c DOVe the COncaVa 2i a mesh portico 55 containing slots me~:surr~ ng about 1" x 1" .
The grate portion- 22 i s formed of slots rne~as~zring about 0 .75"
x 3.00", while the portion 56 above grate: a%2 is a mesh with slots measuring ak:out 0 . 75" x 1 . 5 "' .
The rotating cylfinder 14 is in i~:se:l.f ouniaue design and it includes a cylindrical shell 13 oxat~:_~ ~:he surface of wr:i c:-~ is mounted a sE:ries of helical ~hr~;s~-_i;~~g ba rs ~~.6 and a series of radial ::~ep~~ratar bars i~. ~=he r..-:l i..cal arrangement of the bars 16 ca_: bE~ seen from. Fig. 4 a:~d t;r..ese bars present a rounded face in thE~ direction of travel, t':~is rounded face being covered by :. r~~sp surface. T:nese :~a:>p surfaces 17 co-act with the cor~c<we portions 21 , whi l a _h=. _~?parato__ bars is co-act with the grate pc>rtion 22. ih~ h~=lv~c--;l bars are preferably arrang:='d t=a move the crop mat~~re a . thraug:n the processor within :?f revolutions of the rotatwng cylinder and this serves the more t:he straw quickly throizgz-;. thereby minimizing the breakup of the straw.
The end of th ~ rotating cylinder 1~ t~hr.t is remote from the infeed also in :lucies a series of radial. p=~ddl es 1~ wr:ich 5 serve to discharge the straw from the nro:.e~s::: r down into a straw outlet . As mi l:L be seen f ron; Fig . !~ , t:-~.e inlet to the processor 13 may a:! so include a beater or p.---td.ales 54 for directing the crop ma~~eri_al into the proc~~s,o~ . The processor unit 13 typically has a ~_ength cf szbou~ 9 3 in~~hes .
The straw is dis~~harged through a bo~t:c~m purl et a3 from the end of the pro_~.essor through a straw :~ic:~w=:r 33 and out through a distribu~or 32 back or_to the fi=_lc:i.
The graff material drops through the= grar.e onto an auger bed as shown in Fig . 5. This auger bed inc:lu-aes a pair of outside augers 25 and a central auger 26 whictu move the graff material in a direction from left to rigl-a in Fig. 5 and radial paddles 27 mounted on thE: shaft ef canvral augk_r 26 force the graff ms aerial downwardly ~.r:to an ~::~rlock 23 as shown it Fig. 3. F~r~_ air pump 29 blows tr:i~; c-»-aff from air ~ ock 2c along f1 a} ibl a conduit 30 r~o r,o'~;.1 ~; '.o~~aae hopper 31 .
T'~i s storage =nop~er receives she gr~~fvr :aerial from the flex~~ble conduit ;- ~ through a vent..ir~~ dec:e~ e= ~tor 46 which serves to keep th: crraff mixture homocren~:oi_As. V~ithout the decelerator, the c. r of f would simply b=: b~~ owr~ into the hopper with separation of h. e. grain anc~ chaf i_ . A:'s: to assist in uniform. distrib~:t_. on of t:he gruff materi<=.,1 i:-, the hopper, it i s fed ~ n by war c f ~ distri but:ion auc~e~- ~~:~ E:xtending along the top of the r_cy per. ~io assist. ir_ un=~a>a~ainy, the hopper is provided with taz>: red sidewalls 48 an:z a p:.i~ of unlcading augers 49 extendi.g the Length of tha ho,,:>p~ r at the bottom.
Thes? connect to <. cz-oss auger 50 whi~~h deed the gruff materia~_ into a ci s~=uarg~~ pipe 51. for re-.,,o~.,a' =rpm tr:.e hopper 31.
The system ~.:; i ._ ~ ustrated is towed iy~ a tractor 40 with a power take-off ~=_ ~lhe tractor is co:~ne;~ted to a hitch frame 42 which is conn4: ,tecl to the processor 1:3 ray way of a hinge connection 44. A further hitch 43 is provided for the hopper 31.
Tt will be noted that the tractor is positioned~beside the pick-up 10 and this provides for ease of operation and gives the operator excellent viability over the entire system.
For ease of manoeuvrability of the pick-up 10 and processor 13 together with the tractor, the entire system is joined together by a rigid framework. As seen in. Figs. 3, 5 and 7, the processor 13 is mounted on a frame cor..sisting of a pair of long lateral beams 35 with cross-beams 36 and 37. The beams 37 extend forward of the processor and connect to additional beams 39 and 38 which provide a rigid fixing point for the pick-up, header, feeder combination. The entire system is supported by swivel caster type wheel assemblies 52 at the locations as shown on Fig. 5.
While the above specific description shows a towed storage hopper and a pneumatic conveying :system for graff material, it is to be understood that the invention also includes a harvesting machine in which thE~ storage hopper is mounted directly on the frame of the harvesting machine. The graff material may be transferred to the fixed hopper by means of a mechanical conveying system.
and Fig. 8 is a ra-:ar elevation view o~ t:.~ m:bile gra~ff storage hopper.
Description of the Preferred Embodim=r.~s Looking at Fi~~s . 1 a.nd 2 , this syste~a ~>t _~rts with a pick up 10 and header 1'~ oj= kr~awn design. Frorn t~h=~ header 1.1, the crop material is lifted by way of feeder :L2 ir:to a cylindrical processor unit 13.
The processor unit 1.3 is ar.. importan ~ ~o-;lponent of the present invention and serves to (a) thresz or separate the grain. kernels from thf=_ chaff and (b) separate out the straw from the rest of the ~~raff . Thi.s processsr includes a cylindrical cage 20 w:~ich surrounds a rotary cylinder 14. The cage has a first concave panel portion: 21 adjacent the infeed end of the processor and this i~~ followed by a second grate portion 22. By tre time the crop material has passed over the concave portion and the crate portio:~, about 95~ of thF~
threshing action is completed witri most c:f tr:a graff material fall -ing through it to augf:rs at th=-. b~~tor- ,-;f the processor.
Tne first ~02. ~.10.': O i= the cezC~~ _n :luC; ~.'-' c DOVe the COncaVa 2i a mesh portico 55 containing slots me~:surr~ ng about 1" x 1" .
The grate portion- 22 i s formed of slots rne~as~zring about 0 .75"
x 3.00", while the portion 56 above grate: a%2 is a mesh with slots measuring ak:out 0 . 75" x 1 . 5 "' .
The rotating cylfinder 14 is in i~:se:l.f ouniaue design and it includes a cylindrical shell 13 oxat~:_~ ~:he surface of wr:i c:-~ is mounted a sE:ries of helical ~hr~;s~-_i;~~g ba rs ~~.6 and a series of radial ::~ep~~ratar bars i~. ~=he r..-:l i..cal arrangement of the bars 16 ca_: bE~ seen from. Fig. 4 a:~d t;r..ese bars present a rounded face in thE~ direction of travel, t':~is rounded face being covered by :. r~~sp surface. T:nese :~a:>p surfaces 17 co-act with the cor~c<we portions 21 , whi l a _h=. _~?parato__ bars is co-act with the grate pc>rtion 22. ih~ h~=lv~c--;l bars are preferably arrang:='d t=a move the crop mat~~re a . thraug:n the processor within :?f revolutions of the rotatwng cylinder and this serves the more t:he straw quickly throizgz-;. thereby minimizing the breakup of the straw.
The end of th ~ rotating cylinder 1~ t~hr.t is remote from the infeed also in :lucies a series of radial. p=~ddl es 1~ wr:ich 5 serve to discharge the straw from the nro:.e~s::: r down into a straw outlet . As mi l:L be seen f ron; Fig . !~ , t:-~.e inlet to the processor 13 may a:! so include a beater or p.---td.ales 54 for directing the crop ma~~eri_al into the proc~~s,o~ . The processor unit 13 typically has a ~_ength cf szbou~ 9 3 in~~hes .
The straw is dis~~harged through a bo~t:c~m purl et a3 from the end of the pro_~.essor through a straw :~ic:~w=:r 33 and out through a distribu~or 32 back or_to the fi=_lc:i.
The graff material drops through the= grar.e onto an auger bed as shown in Fig . 5. This auger bed inc:lu-aes a pair of outside augers 25 and a central auger 26 whictu move the graff material in a direction from left to rigl-a in Fig. 5 and radial paddles 27 mounted on thE: shaft ef canvral augk_r 26 force the graff ms aerial downwardly ~.r:to an ~::~rlock 23 as shown it Fig. 3. F~r~_ air pump 29 blows tr:i~; c-»-aff from air ~ ock 2c along f1 a} ibl a conduit 30 r~o r,o'~;.1 ~; '.o~~aae hopper 31 .
T'~i s storage =nop~er receives she gr~~fvr :aerial from the flex~~ble conduit ;- ~ through a vent..ir~~ dec:e~ e= ~tor 46 which serves to keep th: crraff mixture homocren~:oi_As. V~ithout the decelerator, the c. r of f would simply b=: b~~ owr~ into the hopper with separation of h. e. grain anc~ chaf i_ . A:'s: to assist in uniform. distrib~:t_. on of t:he gruff materi<=.,1 i:-, the hopper, it i s fed ~ n by war c f ~ distri but:ion auc~e~- ~~:~ E:xtending along the top of the r_cy per. ~io assist. ir_ un=~a>a~ainy, the hopper is provided with taz>: red sidewalls 48 an:z a p:.i~ of unlcading augers 49 extendi.g the Length of tha ho,,:>p~ r at the bottom.
Thes? connect to <. cz-oss auger 50 whi~~h deed the gruff materia~_ into a ci s~=uarg~~ pipe 51. for re-.,,o~.,a' =rpm tr:.e hopper 31.
The system ~.:; i ._ ~ ustrated is towed iy~ a tractor 40 with a power take-off ~=_ ~lhe tractor is co:~ne;~ted to a hitch frame 42 which is conn4: ,tecl to the processor 1:3 ray way of a hinge connection 44. A further hitch 43 is provided for the hopper 31.
Tt will be noted that the tractor is positioned~beside the pick-up 10 and this provides for ease of operation and gives the operator excellent viability over the entire system.
For ease of manoeuvrability of the pick-up 10 and processor 13 together with the tractor, the entire system is joined together by a rigid framework. As seen in. Figs. 3, 5 and 7, the processor 13 is mounted on a frame cor..sisting of a pair of long lateral beams 35 with cross-beams 36 and 37. The beams 37 extend forward of the processor and connect to additional beams 39 and 38 which provide a rigid fixing point for the pick-up, header, feeder combination. The entire system is supported by swivel caster type wheel assemblies 52 at the locations as shown on Fig. 5.
While the above specific description shows a towed storage hopper and a pneumatic conveying :system for graff material, it is to be understood that the invention also includes a harvesting machine in which thE~ storage hopper is mounted directly on the frame of the harvesting machine. The graff material may be transferred to the fixed hopper by means of a mechanical conveying system.
Claims (15)
1. A harvesting machine comprising:
(a) a mobile frame adapted to be driven across a field of grain bearing crop material;
(b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly;
(c) infeed means mounted on the frame for receiving crop material from the harvesting attachment anal conveying it generally rearwardly;
(d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the infeed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds;
(e) a graff collecting means beneath the threshing and separating cylinder;
(f) a conveying system for transferring collected graff to a storage hopper; and (g) straw discharge means for discharging the straw component onto the field.
(a) a mobile frame adapted to be driven across a field of grain bearing crop material;
(b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly;
(c) infeed means mounted on the frame for receiving crop material from the harvesting attachment anal conveying it generally rearwardly;
(d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the infeed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds;
(e) a graff collecting means beneath the threshing and separating cylinder;
(f) a conveying system for transferring collected graff to a storage hopper; and (g) straw discharge means for discharging the straw component onto the field.
2. A harvesting machine according to claim 1 wherein the threshing and separating cylinder comprises a cylindrical cage with a rotatably cylinder mounted within the cage, said cylindrical cage having a first portion adjacent the infeed comprising a bottom concave panel and upper mesh panels and a second portion comprising both bottom and upper mesh panels and said rotatable cylinders having a cylindrical surface with outwardly projecting blades mounted thereon, said blades including helically mounted blades with cuter rasp surfaces radially adjacent said first cage portion. and straight blades mounted radially adjacent said second cage portion and radial paddle blades mounted at the end of the rotatable cylinder remote from the infeed for discharging straw in a straw discharge means.
3. A harvesting machine according to claim 2 wherein the helical blades are angled to move the crop material through the cylinder in less than about three revolutions.
4. A harvesting machine according to claim 2 wherein the graff collecting means of the harvesting machine comprises a trough aligned beneath the threshing cylinder, and an auger means within the trough for conveying collected graff to an inlet to the conveying system.
5. A harvesting machine according to claim 4 wherein conveying system is a pneumatic conveying system and the inlet to the pneumatic conveying system comprises a rotary air lock.
6. A harvesting machine according to claim 2 wherein the straw discharge means is a wide throw straw chopper and spreader.
7. A harvesting machine according to claim 1 wherein the harvesting machine is adapted to be towed by a tractor.
8. A harvesting system comprising the harvesting machine according to claim 1 in combination with a mobile storage hopper, wherein the mobile storage hopper comprises a towable hopper trailer detachably connected to the rear of said harvester machine frame, said hopper having a graff distribution means in an upper portion thereof, said distribution means being detachably connected to the pneumatic graff conveying system of the harvesting machine, and means for discharging graff from the hopper.
9. A harvesting system according to clam 8 wherein said pneumatic conveying system comprises a flexible tube detachably connected to said hopper graff distributer.
10. A harvesting system according to claim 9 wherein said hopper distribution means comprises an auger extending fore-to-aft in an upper region of the hopper.
11. A harvesting system according to claim 10 wherein the flexible tube is connected to the distributor auger via a venturi decelerator to slow the pneumatically conveyed graff.
12. A harvesting system according to claim 11 wherein a bottom portion of said. hopper has inwardly sloping sides above a discharge auger.
13. A harvesting system according to claim 4 wherein the storage hopper is supported by said mobile frame.
14. A harvesting system according to claim 13 wherein the conveying system for transferring collected graff to the storage hopper is a mechanical conveyor.
15. A harvesting system according to claim 14 wherein the graff conveying system includes a chaff separator for removing a proportion of the chaff from the graff material being delivered to the hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2247070 CA2247070A1 (en) | 1998-09-14 | 1998-09-14 | Field unit for harvesting grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2247070 CA2247070A1 (en) | 1998-09-14 | 1998-09-14 | Field unit for harvesting grains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2247070A1 true CA2247070A1 (en) | 2000-03-14 |
Family
ID=29409897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2247070 Abandoned CA2247070A1 (en) | 1998-09-14 | 1998-09-14 | Field unit for harvesting grains |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2247070A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422937B1 (en) | 1999-06-09 | 2002-07-23 | Mcleod Harvest Inc. | Method and apparatus for harvesting crops wherein crops are cleaned at a remote site |
| US6625964B2 (en) | 2000-12-08 | 2003-09-30 | Mcleod Harvest Inc. | Hydraulic drive line and hitching assembly for pull-type implements |
| WO2006064288A1 (en) * | 2004-12-14 | 2006-06-22 | Robert John Eyre | Modular combine harvesting machines |
| CN114846981A (en) * | 2022-04-16 | 2022-08-05 | 江西省科学院生物资源研究所 | Comprehensive utilization equipment for heavy metal enriched plants |
-
1998
- 1998-09-14 CA CA 2247070 patent/CA2247070A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422937B1 (en) | 1999-06-09 | 2002-07-23 | Mcleod Harvest Inc. | Method and apparatus for harvesting crops wherein crops are cleaned at a remote site |
| US6709329B2 (en) | 1999-06-09 | 2004-03-23 | Mcleod Harvest Inc. | Method and apparatus for harvesting crops wherein crops are cleaned at remote site |
| US6711884B1 (en) | 1999-06-09 | 2004-03-30 | Mcleod Harvest Inc. | Mobile harvesting unit |
| US6712691B2 (en) | 1999-06-09 | 2004-03-30 | Mcleod Harvest Inc. | Mobile harvesting unit |
| US6966506B2 (en) | 1999-06-09 | 2005-11-22 | Mcleod Harvest Inc. | Method and apparatus for harvesting crops |
| US6625964B2 (en) | 2000-12-08 | 2003-09-30 | Mcleod Harvest Inc. | Hydraulic drive line and hitching assembly for pull-type implements |
| WO2006064288A1 (en) * | 2004-12-14 | 2006-06-22 | Robert John Eyre | Modular combine harvesting machines |
| CN114846981A (en) * | 2022-04-16 | 2022-08-05 | 江西省科学院生物资源研究所 | Comprehensive utilization equipment for heavy metal enriched plants |
| CN114846981B (en) * | 2022-04-16 | 2023-01-31 | 江西省科学院生物资源研究所 | Comprehensive utilization equipment for heavy metal enriched plants |
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