CA1227996A - Crop blower-chopper with supplementary comminuter - Google Patents
Crop blower-chopper with supplementary comminuterInfo
- Publication number
- CA1227996A CA1227996A CA000473822A CA473822A CA1227996A CA 1227996 A CA1227996 A CA 1227996A CA 000473822 A CA000473822 A CA 000473822A CA 473822 A CA473822 A CA 473822A CA 1227996 A CA1227996 A CA 1227996A
- Authority
- CA
- Canada
- Prior art keywords
- supplementary
- housing
- crop
- chopper
- main
- 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.)
- Expired
Links
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
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/09—Details
-
- 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
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/02—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges in a plane perpendicular to their rotational axis
Abstract
ABSTRACT OF THE DISCLOSURE
A crop chopper has a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom, a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit, and a drive that rotates the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet. A supplementary housing opens radially into the main housing downstream in the sense from the intake and upstream from the outlet. Thus the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing. A supplementary chopper rotatable in the supplementary housing outside the orbit has radially extending cutting formations. This supplementary chopper in the supplementary housing is rotated to finely comminute the coarsely cut crop therein and to reintroduce the finely comminuted crop back into the main housing upstream of the outlet.
A crop chopper has a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom, a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit, and a drive that rotates the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet. A supplementary housing opens radially into the main housing downstream in the sense from the intake and upstream from the outlet. Thus the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing. A supplementary chopper rotatable in the supplementary housing outside the orbit has radially extending cutting formations. This supplementary chopper in the supplementary housing is rotated to finely comminute the coarsely cut crop therein and to reintroduce the finely comminuted crop back into the main housing upstream of the outlet.
Description
I
SPECIFICATION
Field of the Invention The present invention relates to a field chopper.
More particularly, this invention concerns such a chopper having a main chopping unit functioning also as a blower-type conveyor and a supplementary commentary or chopping unit.
Background of the Invention The production of whole crop, normally corn, fodder the entire plant -- stalk, leaves, and ears -- is chopped up so the moisture of the kernels is mixed with the fibrous matter. It is therefore necessary to chop or community the crop more than once.
The chopper has a frame or chassis adapted to travel along the ground in a normal travel direction and provided on its front end with an intake that receives the crop being harvested. The intake is provided with a cutter for severing the stalk of the crop and conveyors for pulling the severed crop back to a main chopping unit that cuts it into medium-size chunks. A generally cylindrical housing centered on a horizontal axis perpendicular to the travel direction has an intake and a rearwardly and normally tangentially opening outlet. A fan-type drum provided with axially extending blades it rotated about the axis inside this drum past the intake. Thus as the crop is fed into the housing via the intake it is chopped by the rotating blades of the drum and is then blown out of the housing by the fan action of the cutter drum ~22~3~;
According to US. patent 3,756,~17 an West German patent document 2,502,47~ a supplementary comminution is done by a sieve arrangement downstream of the chopper blades. issue sieve is a perforated cylindrical body in the housing of the blower-chopper wheel and lying outside the orbit of the cutting edges of the blades. Such arrangements have the disadvantage of clogging up relatively easily as the material is greatly slowed as it passes through the sieve.
East German patent 35,158 and Austrian patent 219,901 describe blowers having outer ends formed as combs or with teeth. These devices are not likely to clog unless also provided with outlet-blocking combs or screens, but do have the disadvantage of not commenting evenly or finely enough. Some corn kernels normally pass through intact, whereas in whole-corn fodder every kernel should be broken. In addition the chopping or crushing action normally consumes so much energy that the crop is not given sufficient momentum -to pass through a relatively long outlet tube or chute.
In West German patent document 2,062,945 and East German patent 207,162 the inside of the housing is provided with formations like teeth that cocci with formations on the impeller and chopping wheel. Such an arrangement can community relatively finely, but clogs readily.
More complex multistage field choppers of the Mengele SO 20/30, SF 300, SF30nO/4000 type can overcome some of these disadvantages, but are not usable for single-stage chopping.
I
Objects of the Invention It is therefore an object ox the present invention to provide an improved two-stage crop chopper.
Another object is the provision of such a two-stage crop chopper which overcomes the above-given disadvantages, that is which does not clog, that can easily be converted to onstage operation, and that imparts considerable momentum to the doubly commented material.
Seymour of the Invention A crop chopper according to the invention has a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom, a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit, and a drive that rotates the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet. A supplementary housing opens radially into the main housing, downstream in the sense from the intake and upstream from the outlet. Thus the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing. A supplementary chopper rotatable in the supplementary housing outside the orbit has radially I
extending cutting formations. This supplementary chopper in the supplementary housing is rotated to finely community the coarsely cut crop therein and to reintroduce the finely commented crop back into the main housing upstream of the outlet.
Thus with the system of this invention the high-speed main drum serves both for the initial coarse comminution of the crop and for subsequently bringing the reequipped crop back up to a speed sufficient to propel it out of the housing. The supplementary conveyor/blower can thus be wholly eliminated.
According to this invention the supplementary cutter is rotatable about a supplementary axis fixed relative to the main axis and the supplementary housing is displaceable relative to the supplementary axis to vary the spacing between itself and the formations. It is also possible for the supplementary housing to be fixed on the main housing and the supplementary cutter is rotatable about a supplementary axis displaceable relative to the supplementary axis to vary the spacing between itself and the formations.
The formations according to this invention can be pegs or can be radially projecting and axially extending ridges. In addition two such supplementary cutters can be provided with the same or different formations and rotated in the same or opposite directions.
Normally the supplementary housing is internally formed with projections cooperating with the formations.
The system of this invention can also have a stationary blade fixed in the main housing immediately downstream of the secondary housing. The drive can be a flexible and endless drive element spanned between the secondary cutter and the main drum.
To convert the machine of this invention to a single-stage chopper, it is provided with an arcuate shield centered on the axis and engage able within the supplementary housing to block entry of the coarsely cut crop whereinto. In addition, when the supplementary housing is thus closed off, the drive for the supplementary chopper/crusher is also stopped so its rotor or rotors need not turn. Thus when the supplementary chopping is not needed, this shield is set in place, making the machine quite versatile.
Description of the Drawing The above and other features and advantages will become more readily apparent from the following, it being understood that any feature described with reference to one embodiment of the invention can be used where possible with any other embodiment. In the accompanying drawing:
FIG. 1 is a vertical cross section through a portion of a chopper according to this invention; and FIGS. 2, 3, 4 and 5 are detail views of variations on the field chopper of the invention Specific Description As seen in FIG. 1 a crop chopper according to this invention has a cylindrical main housing 5 centered on a horizontal axis A and containing a rotor 2 centered on and rotatable about the axis A. The main housing 5 has I
an end wall 1 formed offset from the axis A with an axially opening intake 8 into which cut crop is weed and a rear upwardly opening outlet 6 connected to a feed tube or chute 7 that empties directly into the takeoff truck adjacent the chassis l o The rotor 2 has four angularly equispaced and radially extending blades 4 rotatable in a sense d about the axis A and carrying a plurality of vanes 3. The cutting edges of the blades 4 sweep across the intake 8 whose downstream edge may be provided with a stationary blade.
Thus crop inserted axially into the intake will be coarsely commented or chopped, the thus produced chucks will be swept clockwise around in the housing 5, and can be expelled tangentially through the outlet 6 in part blown by the air currents created by the vanes 3, According to the invention the main housing 5 is provided with a supplementary housing 9 forming a radially inwardly open and axially extending pocket snugly receiving a pair of supplementary chopping drums 10 rotatable about axes A' parallel to and equispaced from the axis A. This housing 9 is provided relative to the sense d downstream of the intake 8 and upstream of a housing wall portion 12 that terminates at the outlet 6.
The drums 10 are provided with radially extending pins or teeth 15 like a threshing drum and the housing 9 has an arcuate wall portion 11 provided with similar such formations 16. This wall portion 11 is pivoted at an axis A" parallel to and ahead in the direction D from the axis A' by means of a pivot 14 and $
displaceable about this axis by an eccentric 13. The main housing 5 can be provided immediately downstream of the supplementary housing 9 with a blade 18. A belt 17 interconnects the rotor 2 and drums 10 for joint codirectional rotation.
Thus with the system of the invention the chunks of crop cut by the blades 4 are directed into the supplementary housing 9 where they are more finely commented between the formations 15 and 16 of the rotating drums 10 and the stationary housing wall 11. Any remaining chunks will be further commented between the blades 4 and 18, and the resultant whole plant fodder will be propelled by the blades 4 and vanes 3 at great speed up into the chute 7 which, as mentioned above, opens directly at its end into the takeoff truck.
FIG. 1 also shows how a part-cylindrical shield 25 centered on the axis A can block off the housing 9 to eliminate the effect of the supplementary chopping unit.
Thus the arrangement is easily converted to one-stage comminution. When the shield 25 is in use the drive 17 is disconnected to arrest the drums 10.
In the arrangement of FIG. 2 a single such drum lo is provided which is identical to the drums 10 and the other drum is replaced by a drum 19 formed with axially extending ridges aye. The housing pa has a stationary and smooth-walled downstream portion devoid of formations 16 around the ridged drum 19. In addition the belt 17 is spanned such that the ridged drum will rotate opposite to the wheel 2 and drum loan Such a supplementary chopper forms very small and uniform fragments.
SPECIFICATION
Field of the Invention The present invention relates to a field chopper.
More particularly, this invention concerns such a chopper having a main chopping unit functioning also as a blower-type conveyor and a supplementary commentary or chopping unit.
Background of the Invention The production of whole crop, normally corn, fodder the entire plant -- stalk, leaves, and ears -- is chopped up so the moisture of the kernels is mixed with the fibrous matter. It is therefore necessary to chop or community the crop more than once.
The chopper has a frame or chassis adapted to travel along the ground in a normal travel direction and provided on its front end with an intake that receives the crop being harvested. The intake is provided with a cutter for severing the stalk of the crop and conveyors for pulling the severed crop back to a main chopping unit that cuts it into medium-size chunks. A generally cylindrical housing centered on a horizontal axis perpendicular to the travel direction has an intake and a rearwardly and normally tangentially opening outlet. A fan-type drum provided with axially extending blades it rotated about the axis inside this drum past the intake. Thus as the crop is fed into the housing via the intake it is chopped by the rotating blades of the drum and is then blown out of the housing by the fan action of the cutter drum ~22~3~;
According to US. patent 3,756,~17 an West German patent document 2,502,47~ a supplementary comminution is done by a sieve arrangement downstream of the chopper blades. issue sieve is a perforated cylindrical body in the housing of the blower-chopper wheel and lying outside the orbit of the cutting edges of the blades. Such arrangements have the disadvantage of clogging up relatively easily as the material is greatly slowed as it passes through the sieve.
East German patent 35,158 and Austrian patent 219,901 describe blowers having outer ends formed as combs or with teeth. These devices are not likely to clog unless also provided with outlet-blocking combs or screens, but do have the disadvantage of not commenting evenly or finely enough. Some corn kernels normally pass through intact, whereas in whole-corn fodder every kernel should be broken. In addition the chopping or crushing action normally consumes so much energy that the crop is not given sufficient momentum -to pass through a relatively long outlet tube or chute.
In West German patent document 2,062,945 and East German patent 207,162 the inside of the housing is provided with formations like teeth that cocci with formations on the impeller and chopping wheel. Such an arrangement can community relatively finely, but clogs readily.
More complex multistage field choppers of the Mengele SO 20/30, SF 300, SF30nO/4000 type can overcome some of these disadvantages, but are not usable for single-stage chopping.
I
Objects of the Invention It is therefore an object ox the present invention to provide an improved two-stage crop chopper.
Another object is the provision of such a two-stage crop chopper which overcomes the above-given disadvantages, that is which does not clog, that can easily be converted to onstage operation, and that imparts considerable momentum to the doubly commented material.
Seymour of the Invention A crop chopper according to the invention has a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom, a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit, and a drive that rotates the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet. A supplementary housing opens radially into the main housing, downstream in the sense from the intake and upstream from the outlet. Thus the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing. A supplementary chopper rotatable in the supplementary housing outside the orbit has radially I
extending cutting formations. This supplementary chopper in the supplementary housing is rotated to finely community the coarsely cut crop therein and to reintroduce the finely commented crop back into the main housing upstream of the outlet.
Thus with the system of this invention the high-speed main drum serves both for the initial coarse comminution of the crop and for subsequently bringing the reequipped crop back up to a speed sufficient to propel it out of the housing. The supplementary conveyor/blower can thus be wholly eliminated.
According to this invention the supplementary cutter is rotatable about a supplementary axis fixed relative to the main axis and the supplementary housing is displaceable relative to the supplementary axis to vary the spacing between itself and the formations. It is also possible for the supplementary housing to be fixed on the main housing and the supplementary cutter is rotatable about a supplementary axis displaceable relative to the supplementary axis to vary the spacing between itself and the formations.
The formations according to this invention can be pegs or can be radially projecting and axially extending ridges. In addition two such supplementary cutters can be provided with the same or different formations and rotated in the same or opposite directions.
Normally the supplementary housing is internally formed with projections cooperating with the formations.
The system of this invention can also have a stationary blade fixed in the main housing immediately downstream of the secondary housing. The drive can be a flexible and endless drive element spanned between the secondary cutter and the main drum.
To convert the machine of this invention to a single-stage chopper, it is provided with an arcuate shield centered on the axis and engage able within the supplementary housing to block entry of the coarsely cut crop whereinto. In addition, when the supplementary housing is thus closed off, the drive for the supplementary chopper/crusher is also stopped so its rotor or rotors need not turn. Thus when the supplementary chopping is not needed, this shield is set in place, making the machine quite versatile.
Description of the Drawing The above and other features and advantages will become more readily apparent from the following, it being understood that any feature described with reference to one embodiment of the invention can be used where possible with any other embodiment. In the accompanying drawing:
FIG. 1 is a vertical cross section through a portion of a chopper according to this invention; and FIGS. 2, 3, 4 and 5 are detail views of variations on the field chopper of the invention Specific Description As seen in FIG. 1 a crop chopper according to this invention has a cylindrical main housing 5 centered on a horizontal axis A and containing a rotor 2 centered on and rotatable about the axis A. The main housing 5 has I
an end wall 1 formed offset from the axis A with an axially opening intake 8 into which cut crop is weed and a rear upwardly opening outlet 6 connected to a feed tube or chute 7 that empties directly into the takeoff truck adjacent the chassis l o The rotor 2 has four angularly equispaced and radially extending blades 4 rotatable in a sense d about the axis A and carrying a plurality of vanes 3. The cutting edges of the blades 4 sweep across the intake 8 whose downstream edge may be provided with a stationary blade.
Thus crop inserted axially into the intake will be coarsely commented or chopped, the thus produced chucks will be swept clockwise around in the housing 5, and can be expelled tangentially through the outlet 6 in part blown by the air currents created by the vanes 3, According to the invention the main housing 5 is provided with a supplementary housing 9 forming a radially inwardly open and axially extending pocket snugly receiving a pair of supplementary chopping drums 10 rotatable about axes A' parallel to and equispaced from the axis A. This housing 9 is provided relative to the sense d downstream of the intake 8 and upstream of a housing wall portion 12 that terminates at the outlet 6.
The drums 10 are provided with radially extending pins or teeth 15 like a threshing drum and the housing 9 has an arcuate wall portion 11 provided with similar such formations 16. This wall portion 11 is pivoted at an axis A" parallel to and ahead in the direction D from the axis A' by means of a pivot 14 and $
displaceable about this axis by an eccentric 13. The main housing 5 can be provided immediately downstream of the supplementary housing 9 with a blade 18. A belt 17 interconnects the rotor 2 and drums 10 for joint codirectional rotation.
Thus with the system of the invention the chunks of crop cut by the blades 4 are directed into the supplementary housing 9 where they are more finely commented between the formations 15 and 16 of the rotating drums 10 and the stationary housing wall 11. Any remaining chunks will be further commented between the blades 4 and 18, and the resultant whole plant fodder will be propelled by the blades 4 and vanes 3 at great speed up into the chute 7 which, as mentioned above, opens directly at its end into the takeoff truck.
FIG. 1 also shows how a part-cylindrical shield 25 centered on the axis A can block off the housing 9 to eliminate the effect of the supplementary chopping unit.
Thus the arrangement is easily converted to one-stage comminution. When the shield 25 is in use the drive 17 is disconnected to arrest the drums 10.
In the arrangement of FIG. 2 a single such drum lo is provided which is identical to the drums 10 and the other drum is replaced by a drum 19 formed with axially extending ridges aye. The housing pa has a stationary and smooth-walled downstream portion devoid of formations 16 around the ridged drum 19. In addition the belt 17 is spanned such that the ridged drum will rotate opposite to the wheel 2 and drum loan Such a supplementary chopper forms very small and uniform fragments.
2 ho I
In FIG. 3 the arrangement has a single such drum lob and the housing 9b is similarly short and complementary to this drum lob The system of FIG. 4 uses a single drum 19 identical to the ridged drum of JIG. 2 but used all alone as in FIG. 3. once again this drum 19 is counter rotated to the rotor 2 and the inside of its housing 9c is smooth.
In FIG. 5 a plurality of blades 21 like the blades 4 are carried on the outer ends of arms 23 whose inner ends are pivoted at the axis A. The supplementary housing Ed here is stationary and has axially extending ribs 22 in its wall portion 11 juxtaposed with the orbit of the blades 21. A threaded spindle 24 can angularly displace the drum 20~ which is codirectionally rotated with the rotor 2, to vary the spacing between the blade orbit and the formations 22. The belt 17 orbits the blades 21 codirectionally with the blades 4. This arrangement can be set for a very fine supplementary comminution.
With all the arrangements of the present invention the rotor 2 coarsely chops the crop and then delivers it immediately to the supplementary chopping unit which comments it somewhat more finely and returns the twice commented crop to the rotor 2. The rotor 2 therefore serves at least to coarsely community the crop and then/ after the supplementary comm.inution, to again bring the crop up to a speed sufficient to propel it out the outlet 6.
In FIG. 3 the arrangement has a single such drum lob and the housing 9b is similarly short and complementary to this drum lob The system of FIG. 4 uses a single drum 19 identical to the ridged drum of JIG. 2 but used all alone as in FIG. 3. once again this drum 19 is counter rotated to the rotor 2 and the inside of its housing 9c is smooth.
In FIG. 5 a plurality of blades 21 like the blades 4 are carried on the outer ends of arms 23 whose inner ends are pivoted at the axis A. The supplementary housing Ed here is stationary and has axially extending ribs 22 in its wall portion 11 juxtaposed with the orbit of the blades 21. A threaded spindle 24 can angularly displace the drum 20~ which is codirectionally rotated with the rotor 2, to vary the spacing between the blade orbit and the formations 22. The belt 17 orbits the blades 21 codirectionally with the blades 4. This arrangement can be set for a very fine supplementary comminution.
With all the arrangements of the present invention the rotor 2 coarsely chops the crop and then delivers it immediately to the supplementary chopping unit which comments it somewhat more finely and returns the twice commented crop to the rotor 2. The rotor 2 therefore serves at least to coarsely community the crop and then/ after the supplementary comm.inution, to again bring the crop up to a speed sufficient to propel it out the outlet 6.
Claims (9)
1. A crop chopper comprising:
a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom;
a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit;
drive means for rotating the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet;
a supplementary housing opening radially into the main housing downstream in the sense from the intake and upstream from the outlet;
a supplementary chopper rotatable in the supplementary housing outside the orbit and hving radially extending cutting formations, whereby the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing; and means for rotating the supplementary chopper in the supplementary housing for finely comminuting the coarsely cut crop therein and for reintroducing the finely comminuted crop back into the main housing upstream of the outlet.
a main housing generally extending along an axis and having an outwardly open intake and a radially outwardly open outlet angularly spaced therefrom;
a main chopping rotor having a plurality of angularly spaced blades and a plurality of angularly spaced wind vanes and rotatable about the axis in the housing in a predetermined rotational sense to displace the blades in an orbit;
drive means for rotating the main chopping rotor in the rotational sense for coarsely cutting the crop at the intake, for displacing the cut crop in the rotational sense back in the main housing, and for propelling the cut crop radially outward through the outlet;
a supplementary housing opening radially into the main housing downstream in the sense from the intake and upstream from the outlet;
a supplementary chopper rotatable in the supplementary housing outside the orbit and hving radially extending cutting formations, whereby the coarsely cut crop is displaced by the main cutting rotor into the supplementary housing; and means for rotating the supplementary chopper in the supplementary housing for finely comminuting the coarsely cut crop therein and for reintroducing the finely comminuted crop back into the main housing upstream of the outlet.
2. The crop chopper defined in claim 1 wherein the supplementary chopper is rotatable about a supplementary axis fixed relative to the main axis and the supplementary housing is displaceable relative to the supplementary axis to vary the spacing between itself and the formations.
3. The crop chopper defined in claim 1 wherein the supplementary housing is fixed on the main housing and the supplementary chopper is rotatable about a supplementary axis displaceable relative to the supplementary axis to vary the spacing between itself and the formations.
4. The crop chopper defined in claim 1 wherein the formations are radially projecting pegs.
5. The crop chopper defined in claim 1 wherein the formations are radially projecting and at least generally axially extending ridges.
6. The crop chopper defined in claim 1 wherein the supplementary housing is internally formed with projections cooperating with the formations.
7. The crop chopper defined in claim 1, further comprising a stationary blade fixed in the main housing immediately downstream of the secondary housing.
8. The crop chopper defined in claim 1 whrein the drive means includes a flexible and endless drive element spanned between the secondary chopper and the main rotor.
9. The crop chopper defined in claim 1, further comprising an arcuate shield centered on the axis and engageable within the supplementary housing to block entry of the coarsely cut crop thereinto.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD84259937A DD220803A1 (en) | 1984-02-08 | 1984-02-08 | NACHZERKLEINERUNGSEINICHTUNG FOR HAECKSELGUT |
| DDWPA01F/2599375 | 1984-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227996A true CA1227996A (en) | 1987-10-13 |
Family
ID=5554577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000473822A Expired CA1227996A (en) | 1984-02-08 | 1985-02-07 | Crop blower-chopper with supplementary comminuter |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0156128B1 (en) |
| AT (1) | ATE38123T1 (en) |
| CA (1) | CA1227996A (en) |
| DD (1) | DD220803A1 (en) |
| DE (1) | DE3565754D1 (en) |
| DK (1) | DK153194C (en) |
| HU (1) | HU192312B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803375A (en) * | 1996-01-26 | 1998-09-08 | Alteen Distributors Ltd. | Vertical mixer |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3406201A1 (en) * | 1984-02-21 | 1985-08-22 | Karl Mengele & Söhne Maschinenfabrik und Eisengießerei GmbH & Co, 8870 Günzburg | HAECKSLER |
| US5822962A (en) * | 1996-04-26 | 1998-10-20 | New Holland North America, Inc. | Crop processor apparatus for pull-type forage harvester |
| CN105103825B (en) * | 2015-07-31 | 2017-03-29 | 濮阳市农发机械制造有限公司 | A kind of revolution with labyrinth structure throws type ensilage machine |
| CN107810726A (en) * | 2017-11-15 | 2018-03-20 | 利川隆祥生物科技有限公司 | A kind of straw millstone |
| CN112535026B (en) * | 2019-11-27 | 2024-01-26 | 新疆农业科学院农业机械化研究所 | Square bundle straw pulverizer with stirring, cutting and cutting two-stage crushing functions |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT304117B (en) * | 1969-12-23 | 1972-12-27 | Poettinger Ohg Alois | Corn harvester |
| DE2250144A1 (en) * | 1972-10-13 | 1974-04-25 | Werner Dr Dernedde | TRIMMING MACHINE WITH TRIMMING SYSTEM OF ROTATING ROLLERS ARRANGED CONCENTRICALLY AROUND THE CUTTING DRUM AXIS |
| DE2422894A1 (en) * | 1974-05-11 | 1975-11-20 | Bautz Gmbh Josef | Forage harvester with transverse conveyor - has conveyor joined tangentially to inlet-duct connected to casing |
-
1984
- 1984-02-08 DD DD84259937A patent/DD220803A1/en not_active IP Right Cessation
-
1985
- 1985-02-06 EP EP85101218A patent/EP0156128B1/en not_active Expired
- 1985-02-06 DE DE8585101218T patent/DE3565754D1/en not_active Expired
- 1985-02-06 AT AT85101218T patent/ATE38123T1/en not_active IP Right Cessation
- 1985-02-06 HU HU85455A patent/HU192312B/en unknown
- 1985-02-07 DK DK054685A patent/DK153194C/en not_active IP Right Cessation
- 1985-02-07 CA CA000473822A patent/CA1227996A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803375A (en) * | 1996-01-26 | 1998-09-08 | Alteen Distributors Ltd. | Vertical mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| DK54685A (en) | 1985-08-09 |
| DK153194C (en) | 1988-11-21 |
| EP0156128A1 (en) | 1985-10-02 |
| DD220803A1 (en) | 1985-04-10 |
| HU192312B (en) | 1987-05-28 |
| EP0156128B1 (en) | 1988-10-26 |
| ATE38123T1 (en) | 1988-11-15 |
| DK54685D0 (en) | 1985-02-07 |
| DK153194B (en) | 1988-06-27 |
| DE3565754D1 (en) | 1988-12-01 |
| HUT39050A (en) | 1986-08-28 |
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