• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A chopper drum (1) for a forage harvester comprising a circular cylindrical drum body (10) having a drum shell (11) defining an outer diameter of the drum body (10) and having a predetermined axial length, and two pairs of knife carriers (20, 20.1, 20.2; 20.3, 20.4). Each knife carrier (20) is formed with a plurality of knife carrier segments and releasably secured in an annular array of its knife carrier segments on the outer diameter of the drum body. A first pair of the knife carrier is mutually axially offset on a first axial side of the drum shell. A second pair of the knife carrier is arranged offset to one another axially offset on a second axial side of the drum shell. In order to facilitate a half-blade operation of the cutterhead, axially between the first pair of knife carriers and between the second pair of knife carriers, an intermediate knife carrier (25.1, 25.2) formed like this knife carrier is provided and removably mounted on the outer diameter of the drum body.
    公开号:BE1024309B1
    申请号:E20165789
    申请日:2016-10-20
    公开日:2018-01-30
    发明作者:Stefan Birkhofer
    申请人:Claas Saulgau Gmbh；
    IPC主号:
    专利说明:

    B E2016 / 5789
    Chopping streams for a forage harvester
    The invention relates to a chopper drum as defined in the preamble of claim 1 for a forage harvester.
    A chopper drum of the type mentioned is known for example from DE 10 2012 023 431 A1. This chopper drum has a circular cylindrical drum body and two pairs of knife carriers. The drum body is provided with a drum casing which defines an outer diameter of the drum body and has an axial length which is limited by first and second axial ends pointing in opposite directions. Each of the knife carriers is formed with a plurality of knife carrier segments, each of which has an outer circumferential surface with a predetermined number of knife receptacles, and is releasably attached to the outer diameter of the drum body in a circular arrangement of its knife carrier segments. A first pair of knife carriers is arranged axially offset from one another on a first axial soap of the drum head. A second pair of knife carriers is arranged axially offset from one another on a second axial side of the drum casing.
    The chopper drum known from DE 10 2012 023 431 A1 is provided with a plurality of strip-shaped cutting knives which, for so-called Voilmesser operation, are evenly distributed around the outside of the drum shell and are each fastened to two knife receptacles arranged axially apart from the drum shell. More precisely, a first group of cutting knives is fastened to the knife receptacles of the two knife carriers on the first axial side of the drum casing, so that the cutting knives each span the two knife carriers. A second group of cutting knives is attached to the knife receptacles of the two knife carriers on the second axial side of the drum casing, see above
    B E2016 / 5789
    If larger cutting lengths are to be achieved in use in the chopper drum known from DE 10 2012 023 431 Ä1, half of the cutting knives (circumferentially every second cutting knife) can be dismantled on each of the two axial sides of the drum casing, so that a so-called half-knife operation of the chopper drum becomes possible. However, the resulting, irregular cutting knife division creates an uneven flow of chopped material and causes poor loading of the subsequent units, which in turn leads to vibrations and increased stress on the subsequent units.
    In order to remedy these problems, if the full number of cutting knives were left, they could each be formed with only half a cutting edge along their length in order to enable the chopping drum to operate with a half knife. However, this requires a special design for the cutting blades designed with half a cutting edge, which increases the manufacturing effort. Half the cutting edge of the cutting knife also reduces its mechanical stability.
    Overall, this known chopper drum can thus only be operated with restrictions in the operation of the knife.
    The invention is based on the object of developing a chopper drum as defined in the preamble of claim 1 for a forage harvester in such a way that its operation of the cutter is facilitated.
    This is achieved with the features in the characterizing part of claim 1. Further developments of the invention are defined in the dependent claims.
    According to the invention, a chopper drum for a forage harvester has a circular cylindrical drum body and two pairs of knife carriers. The drum body is provided with a drum shell that one
    B E2016 / 5789
    Defines the outer diameter of the drum body and a predetermined axial length het s which is limited by first and second axial ends pointing in opposite directions.
    Each of the knife carriers is formed with a plurality of knife carrier segments, each of which has an outer circumferential surface with a predetermined number of knife receptacles, and is releasably attached to the outer diameter of the drum body in a circular arrangement of its knife carrier segments. Preferably, the knife carrier segments each have the shape of an annular disk cutout of a predetermined circumferential length and are releasably attached to the outer diameter of the drum body in a row of annular disk disks in the order of their knife carrier segments.
    A first pair of knife carriers is arranged axially offset from one another on a first axial side of the drum casing. A second pair of knife carriers is axially offset from one another on a second axial side of the drum shell. Of the first pair of knife carriers, a knife carrier is preferably arranged at the first axial end of the drum shell and the other knife carrier is a predetermined axial length in the direction of the second axial end of the drum shell Also arranged offset from the second pair of knife carriers, a knife carrier is preferably arranged at the second axial end of the drum jacket and the other knife carrier is arranged offset by a predetermined axial direction towards the first axial end of the drum jacket.
    The chopper drum according to the invention is characterized in that axially of the drum casing both between the first pair of knife carriers and between the second pair of knife carriers, an intermediate knife carrier designed like this knife carrier is provided and is releasably attached to the outer diameter of the drum body.
    B E2016 / 5789
    The two intermediate knife carriers provide an additional fastening and support for the cutting knives between each of the two pairs of knife carriers, which gives the cutting knives a higher mechanical stability in Voilmesserbetrieb. For the half-knife operation, the additional fastening options and support can be used instead of the cutting knives for the full-knife operation, shortened (e.g. half-length) cutting knives. These can be produced easily and with good mechanical stability by modifying (shortening) the cutting knives of the full knife lift. As a result, the half-knife operation of the
    Chopper drum relieved.
    According to one embodiment of the invention, the chopper drum is therefore provided with a plurality of strip-shaped cutting knives which are distributed around the outside of the drum shell and are each fastened to at least two knife receptacles spaced axially of the drum shell. One of the knife holders, which realizes the attachment of a respective cutting knife, is arranged or formed on one of the intermediate knife carriers.
    According to a further embodiment of the invention, in each of the first pair of knife carriers and the second pair of knife carriers, the respective intermediate knife carrier is arranged axially of the drum jacket in the middle between the one knife carrier and the other knife carrier of the respective pair of knife carriers. This advantageously creates the possibility of making the length-shortened cutting knives for the half-knife operation exactly half as long as the full-length cutting knives for the full-knife operation, which reduces the manufacturing effort for the length-shortened cutting knives. In addition, this arrangement of the intermediate knife carrier advantageously influences the symmetry of the cutting knife arrangement in the radius of the knife, so that vibrations are reduced.
    BE2016 / 5789
    According to yet another embodiment of the invention, the cutting knives comprise at least one long knife (a full-length cutting knife with a continuous cutting edge), which has a length and is arranged such that the at least one long knife holds the knife carriers of a pair of the above and second pairs of Knife carrier spanned and attached to three respective knife receptacles in alignment of the two knife carriers of the respective pair of knife carriers and the intermediate knife carrier arranged between them. In this way, the long knife is attached and supported at three points and thus has increased mechanical stability.
    According to yet another embodiment of the invention, the cutting knives comprise at least one short knife (a shortened and in particular half-length cutting knife with a continuous cutting edge), which has such a length and is arranged that the at least one short knife extends from one of the knife carriers to one axially of the Drum casing extends directly to the relevant knife carrier of the intermediate knife carrier and is fastened to a respective knife receptacle of the relevant knife carrier and the relevant intermediate knife carrier. In this way, the short knife is attached and supported at two points and thus has good mechanical stability.
    According to one embodiment of the invention, axially of the drum shell, between the first pair of knife carriers and between the second pair of knife carriers, a further intermediate knife carrier designed like this knife carrier is provided directly adjacent to the one intermediate knife carrier and releasably attached to the outer diameter of the drum body, so that the pair of intermediate knife carriers is arranged centrally between the one knife carrier and the other knife carrier of the respective pair of knife carriers. The additional intermediate knife carrier advantageously increases the variability of the arrangement of shortened cutting knives.
    B E2016 / 5789
    According to a further embodiment of the invention, the cutting knives comprise at least one long knife (a full-length cutting knife with a continuous cutting edge) which is of such a length and is arranged that the at least one long knife spans the knife carriers from a pair of the first and second pairs of knife carriers and is attached to four respective knife receptacles lying in a line of the two knife carriers of the relevant pair of knife carriers and the two intermediate knife carriers arranged between them. In this way, the long knife is attached and supported at four points and thus has an even higher mechanical stability.
    According to yet another embodiment of the invention, the cutting knives comprise at least one short knife (a shortened and in particular half-length cutting knife with a continuous cutting edge), which has such a length and is arranged that the at least one short knife extends from one of the knife carriers to one axially of the drum casing extends directly adjacent to the relevant knife carrier of the intermediate knife carrier and is fastened to a respective knife receptacle of the relevant knife carrier and the relevant intermediate knife carrier. In this way, the short knife is attached and supported at two points and thus has good mechanical stability.
    According to one embodiment of the invention, for a full knife operation, all cutting knives of the chopper drum are designed like the at least one long knife, a first group of the cutting knives being arranged on the first pair of knife carriers, circumferentially around the drum tray, and a second group of the cutting knives being distributed on the outside around the drum head are arranged on the second pair of knife carriers. The first group of cutting knives is preferably offset circumferentially from the second group of cutting knives, so that each cutting knife of the one group is circumferentially spaced between them
    B E2016 / 5789 two circumferentially directly adjacent cutting knives of the other group is located.
    According to one embodiment of the invention, for a half-knife operation 5, all cutting knives of the chopping drum are designed like the at least one short knife, with a number of half of the cutting knives distributed around the outside of the drum casing on the side of the first pair of knife carriers and the other half of the cutting knives around the outside of the drum casing are distributed on the side of the second pair of knife carriers. In each half of cutting knives, a first group of cutting knives is arranged on the one knife carrier and the intermediate knife carrier of the respective pair of knife carriers directly adjacent axially to the drum shell, and a second group of cutting knives is arranged on the other knife carrier and the intermediate knife carrier directly axially adjacent to the drum shell of the respective pair of knife carriers.
    For half-knife operation, the first group of cutting knives is preferably offset circumferentially from the second group of cutting knives
    Cutting knife arranged so that each cutting knife of one group is circumferentially at a circumferential distance between two circumferentially directly adjacent cutting knives of the other group.
    In addition, for the cutter operation, the cutting knives of two groups of cutting knives of the one and the other half of cutting knives, which are axially adjacent to the drum shell, are preferably offset circumferentially, so that each cutting knife of the one group is circumferentially spaced between two circumferentially directly adjacent cutting knives of the other Group is located.
    Overall, a uniform flow of chopped material, less noise and
    B E2016 / 5789
    Vibrations achieved. At the same time, voiHange cutting knives with a continuous cutting edge can be used for full knife operation. The chopper drum according to the invention ensures good mechanical stability of the cutting knives, even for the increased knife forces in radius knife operation. The shortened cutting knives of the circular knife operation are inexpensive and can be manufactured with good stability.
    The invention also extends expressly to those embodiments which are not given by combinations of features from explicit references to the claims, with which the disclosed features of the invention can be combined with one another as far as this is technically expedient.
    In the following, the invention is described in more detail using a preferred embodiment and with reference to the attached figures.
    1 shows a perspective view of a chopper drum for a forage harvester designed in accordance with an embodiment of the invention in a full knife configuration.
    Fig. 2 shows a perspective view of the chopper drum of Fig. 1 in one
    A chopper drum 1 for a forage harvester (not shown) designed in accordance with an embodiment of the invention is described below with reference to FIGS. 1 and 2.
    As shown in FIGS. 1 and 2, the chopper drum 1 has a circular cylindrical drum body 10 with a drum shell 11, which defines an outer diameter of the drum body 10. The drum jacket 11 has an axial length which is limited by first and second axial ends 11.1, 11.2 pointing in opposite directions.
    B E2016 / 5789
    The chopper drum 1 has a first pair of knife carriers 20.1, 20.2 on a left axial side in FIGS. 1 and 2 and a second pair of knife carriers 20.3, 20.4 on a right axial side in FIGS. 1 and 2 .
    Of the first pair of knife carriers 20, 1, 20.2, one knife carrier 20.1 is arranged at the first axial end 11.1 of the drum shell 11 and the other knife carrier 20.2 is arranged offset by a predetermined axial length in the direction of the second axial end 11.2 of the drum shell 11. Of the second pair of knife carriers 20.3, 20.4, one knife carrier 20.3 is arranged at the second axial end 11.2 of the drum shell 11 and the other knife carrier 20.4 is arranged offset by a predetermined axial length in the direction of the first axial end 11.1 of the drum shell 11. The two other knife carriers 20, 2, 20.3 of the two pairs, which are arranged in a staggered manner, are arranged as a pair, axially centered of the drum casing 11.
    The knife carriers 20.1-20.4 of both pairs are identical except for differences with regard to their arrangement on the left or right axial side of the chopper drum 1 and are therefore referred to in the following for general loading with reference number 20.
    The chopping drum 1 also has two intermediate knife carriers 25.1, 25.2, of which one intermediate knife carrier 25.1 is arranged axially of the drum shell 11 between the first pair of knife carriers 20.1, 20.2 and the other intermediate knife carrier 25.2 axially of the drum shell 11 between the second pair of knife carriers 20.3, 20.4 is arranged. In each of the first pair of knife carriers 20.1, 20.2 and the second pair of knife carriers 20.3, 20.4, the respective intermediate knife carrier 25.1 or 25.2 is axially of the drum jacket 11 centrally between the one knife carrier 20.1, 20.4 and the other knife carrier 20.2, 20.3 of the respective pair of
    B E2016 / 5789
    The two intermediate knife carriers 25, 25.2 are identical except for differences in their arrangement on the left or right axial side of the chopper drum 1 and are therefore designated in the following with a general view by reference numeral 25. Besides, the two are
    Intermediate knife carriers 25.1, 25.2 are identical to the knife carriers 20
    The knife carriers 20 and the intermediate knife carriers 25 are each formed with a plurality of knife carrier segments (not separately designated), d = e in each case the shape of a circular disk section of predetermined circumferential
    Length and an outer peripheral surface (not separately designated) with a predetermined number of knife receptacles 22 (preferably a plurality of knife receptacles 22). The knife carriers 20 and the intermediate knife carriers 25 are each detachable in an annular disk-like arrangement of their knife carrier segments on the outer diameter or the
    Drum sleeve 11 of the drum body 10 attached.
    For the purpose of fastening, an annular disk-shaped fixing element 40 is fixed for each knife carrier 20 and each intermediate knife carrier 25 (for example, by means of welding) on the outer diameter or
    Drum sleeve 11 of the drum body 10 attached. The respective knife holder 20 or intermediate knife holder 25 is in turn over a plurality Screw connections (not separately designated) releasably attached to the associated fixing element 40 and thus releasably on the outer diameter or the drum shell 11 of the drum body 10.
    More precise details with regard to the row-shaped arrangement of the respective knife carrier segments of knife carriers 20 and intermediate knife carriers 25 and their attachment to the respective fixing elements 40 can be made from essentially the same design
    DE 10 2012 023 431 A1.
    B E2016 / 5789
    As shown in FIG. 1 and FIG. 2 in each case, the chopper drum 1 has a plurality of strip-shaped cutting knives 90, which are distributed around the outside of the drum shell 11 and are each arranged on at least two axially of the drum shell 11 at a distance from one another
    Knife receptacles 22 are attached. In any case, one of the knife receptacles 22 that realizes the fastening is on one of the
    Intermediate knife carriers 25.1, 25.2 are arranged or formed. The cutting knives 90 are preferably each formed as a shovel knife.
    1, which shows the chopper drum 1 in a volumetric knife configuration, all cutting knives 90 are designed as long knives 90.1. Each long knife 90.1 has such a length and is so arranged that the long knife 90.1 spans the knife carriers 20 by a pair of the first and second pairs of knife carriers 20.1, 20.2 and 20.3, 20.4 and on three respective knife receptacles 22 which are in alignment two knife carriers 20 of the relevant pair of knife carriers 20.1, 20.2 or, 20.3, 20.4 and the intermediate knife carrier arranged between them
    25.1 or 25.2 is attached.
    More precisely, a first group of the cutting knives 90, each designed as a long knife 90.1, is arranged on the first pair of knife carriers 20.1, 20.2 distributed around the outside of the drum shell 11, so that each of the long knives 90.1 has these two knife carriers 20.1, 2Ö.2 and the intermediate knife carrier 25.1 arranged between them spanned. Each long knife 90.1 is fastened to three respective knife receptacles 22 of the first pair of knife carriers 20.1, 20.2 and the intermediate knife carrier 25.1 arranged between them.
    A second group of each formed as a long knife 90.1
    Cutting knife 90 is circumferentially arranged around the drum jacket 11 on the second pair of knife carriers 20.3, 20.4, so that each of the long knives 90.1 has these two knife carriers 20.3, 20.4 and the one in between
    B E2016 / 5789 arranged intermediate knife carrier 25.2 spanned. Each long knife 90.1 is arranged on three respective knife receptacles 22 of the second pair of knife carriers 20.3, 20.4 and the one in between, which are in alignment
    As can be seen from FIG. 1, the first group of cutting knives 90 (long knife 90.1) arranged on the left axial side of the chopper drum 1 is circumferentially offset from the second group of cutting knives 90 (long knife 90.1) arranged on the right axial side of the chopper drum 1 , so that each cutting knife 90 (long knife 90.1) of one group is circumferentially at a circumferential distance between two circumferentially directly adjacent cutting knives 90 (long knife 90.1) of the other group.
    2, which shows the chopper drum 1 in a half-knife configuration, all cutting knives 90 are designed as short knives 90.2. Each short knife 90.2 has such a length and is arranged such that the short knife 90.2 extends from one of the knife carriers 20 to one of the intermediate knife carriers 25, 1, 25.2 extends axially from the drum jacket 11 to the knife carrier 20 in question and is adjacent to one
    Knife receptacle 22 of the relevant knife holder 20 and the relevant intermediate knife holder 25.1, 25.2 is attached.
    More precisely, one half of the cutting knives 90, each designed as short knives 90.2, is distributed around the outside of the drum jacket 11 on the first pair of knife carriers 20.1, 20, and the other half of the cutting knives 90, each designed as short knives 90.2, is distributed around the outside of the drum jacket 11 arranged on the side of the second pair of knife carriers 20.3, 2Ö.4.
    For each half of the number of cutting knives 90 (short knives 90.2) there is a first group of cutting knives 90 (short knives 90.2) on the axially end side of a knife carrier 20.1, 20.4 and axially the
    BE2016 / 5789
    Trammimantels 11 directly adjacent intermediate knife carrier 25.1, 25.2 of the respective pair of knife carriers 20.1, 20.2 or, 20.3, 20.4 arranged so that each of the short knives 90.2 spans the respective axially end-side knife carrier 20.1, 20.4 and the relevant intermediate knife carrier 25, 1, 25.2 two respective knife receptacles 22 lying in alignment are attached
    For each half of the number of cutting knives 90 (short knives 90.2) there is also a second group of cutting knives 90 (short knives 90.2) on the axially central other knife holder 20.2, 20.3 and the intermediate knife holder 25.1, 25.2 of the respective pair of knife holders directly adjacent to the drum casing 11 20.1, 20.2 or 20.3, 20.4, sc that each of the short knives 90.2 spans the relevant axially central knife holder 20.2, 20.3 and the relevant intermediate knife holder 25.1, 25.2 and on two respective knife holders 22 lying in alignment this is attached.
    As can be seen from FIG. 2, for each numbered half of cutting knives 90 (short knives 90.2), the first group of cutting knives 90 (short knives 90.2) is arranged offset circumferentially from the second group of cutting knives 90 (short knives 90.2), so that each cutting knife 90 (Short knife 90.2) of the one group circumferentially at a circumferential distance between two circumferentially directly adjacent cutting knives 90 (short knives
    As can also be seen from FIG. 2, the cutting knives 90 (short knives 90.2) of two groups of cutting knives 90 (short knives 90.2) directly adjacent to the drum casing 11 of the one and the other numbered half of cutting knives 90 (short knives 90.2) are circumferentially offset from one another , so that each cutting knife 90 (short knife 90.2) of the one group circumferentially at a circumferential distance
    B E2016 / 5789 is located between two circumferentially directly adjacent cutting blades 90 (short blades 90.2) of the other group.
    According to a modification of the chopper drum 1, not shown in FIGS. 1 and 2, axially of the drum head 11 between the first pair of knife carriers 20.1, 20.2 and between the second pair of knife carriers 20,3, 20.4, one such knife carrier and one Intermediate knife carrier 25.1, 25.2 designed further intermediate knife carrier is provided directly adjacent to the one intermediate knife carrier 25.1, 25.2 and releasably attached to the outer diameter of the drum body 11. Seen as a pair, the two directly adjacent intermediate knife carriers 25 are then arranged centrally between the axially end-soapy knife carrier 20.1, 20.4 and the axially central other knife carriers 20.2, 20.3 of the respective pair of knife carriers 20.1, 20.2 and 20.3, 20.4.
    1, in this modification of the chopper drum 1, each long knife 90.1 has such a length and is arranged that the long knife 90.1 removes the knife carriers 20 from a pair of the first and second pairs of knife carriers 20.1, 20.2 and 20.3, 20.4 and spanned on four respective knife receptacles 22 of the two knife carriers 20 of the respective pair of knife carriers 20.1, 20.2 or 20.3, 20.4 and the two arranged between them
    Intermediate knife carrier 25 is attached.
    With regard to the half-knife configuration of FIG. 2, in this modification of the chopper drum 1, each short knife 90.2 has such a length and is arranged that the short knife 90.2 is directly adjacent from one of the knife carriers 20 to one axially of the drum head 11 to the relevant knife carrier 20 the intermediate knife carrier 25 extends and is fastened to a respective knife receptacle 22 of the respective knife carrier 20 and the relevant intermediate knife carrier 25.
    B E2016 / 5789
    1 Chopper drum 10th Drum body 5 11 Drum jacket 11.1 Axial end 11.2 Axial end 20th Knife holder (general) 2Ö.1, 20.2 Knife holder (first pair) 10th 20.3, 20.4 Knife holder (second pair) 22 Knife holder 25th Intermediate knife carrier (general) 25.1 Intermediate knife holder 25.2 Intermediate knife holder 15 40 Fixing element 90 Cutting knife 90.1 Long knife 90.2 Short knife
    B E2016 / 5789
    权利要求:
    Claims (7)
    [1]
    Claims
    1. chopper drum (1) for a forage harvester, comprising:
    a circular cylindrical drum body (10) with a drum part (11) which defines an outer diameter of the drum body (10) and has an axial length which is limited by first and second axial ends (11, 1, 11.2) pointing in opposite directions, two Pairs of knife carriers (20, 20.1, 20.2; 20.3, 20.4), each knife carrier (20) being formed with a plurality of knife carrier segments, each of which has an outer circumferential surface with a predetermined number of knife receptacles, and in a circular arrangement its knife carrier segments are detachably fastened to the outer diameter of the drum body (10), a first pair of knife carriers (20.1, 20.2) being arranged axially offset from one another on a first axial side of the drum shell (11) and a second pair of knife carriers (20.3, 20.4 ) axially offset from one another on a second axial soap of the drum shell (11), characterized in that that axially of the drum jacket (11) both between the first pair of knife carriers (20.1, 2Ö.2) and between the second pair of knife carriers (20.3, 20.4) each have an intermediate knife carrier (25, 25.1, 25.2 ) provided and releasably attached to the outer diameter of the drum body (10) «st.
    [2]
    2, chopper drum (1) according to claim 1, with a plurality of strip-shaped cutting knives (90), the outer circumferentially arranged around the drum shell (11) and each attached to two axially of the drum shell (11) spaced apart from the knife receptacles (22) are, one of which is arranged on one of the intermediate knife carrier (26.1,25,2).
    A chopper drum (1) according to claim 2, wherein each of the first of knife carriers (20.1, 20.2) and the second pair of knife carriers
    [3]
    3rd
    B E2016 / 5789 (20.3, 2Ö.4) the respective intermediate knife holder (25.1, 25.2) axially of the drum casing (11) centrally between the one knife holder (20.1, 20.4) and the other knife holder (20, 2, 20.3) of the respective pair of knife carriers (20.1,20.2; 20,3, 20.4) is arranged
    [4]
    4. Chopping drum (1) according to claim 2 or 3, wherein the cutting knives (90) comprise at least one long knife (90,1), which has such a length and is arranged such that the at least one long knife (90.1) the knife carrier (20 ) of a pair of the first and second pairs of
    10 knife carriers (20.1, 20.2; 20.3, 20.4) spanned and on three respective knife receptacles (22) lying in alignment with the two knife carriers (20) of the respective pair of knife carriers (20.1, 20.2; 20.3, 20.4) and the intermediate knife carrier arranged between them (25.1,25.2) is attached.
    15 5. chopper drum (1) according to any one of claims 2 to 4, wherein the
    Cutting knife (90) comprise at least one short knife (90.2), which has such a length and is arranged such that the at least one short knife (90.2) extends from one of the knife carriers (20) to one axially of the drum casing (11) to the relevant knife carrier (20) directly adjacent
    20 of the intermediate knife carrier (25) extends and is fastened to a respective knife receptacle (22) of the respective knife carrier (20) and the relevant intermediate knife carrier (25).
    6. chopper drum (1) according to claim 2, wherein axially of the drum shell (11) both between the first pair of knife carriers (20.1, 20.2) and between the second pair of knife carriers (20.3, 20.4) in each case like this knife carrier (20) trained additional intermediate knife carrier (25) is provided directly adjacent to the one intermediate knife carrier (25) and is detachably fastened on the outer diameter of the drum body (10), so that the pair of intermediate knife carriers (25) is centered between the one knife carrier (20,1,
    20.4) and the other knife carrier (20,2, 20.3) of the respective pair of
    B E2016 / 5789
    7. chopper drum (1) according to claim 6, wherein the cutting knife (90) comprise at least one long knife (90.1), which has such a length and is arranged such that the at least one long knife (90.1) the knife carrier (20) of a pair spanned by the first and second pairs of knife carriers (20.1, 20.2; 20.3, 20.4) and on four respective knife receptacles (22) of the two knife carriers (20) of the respective pair of knife carriers (20.1, 20.2; 20.3, 20.4) lying in alignment. and the intermediate knife carrier (25) arranged between them is fastened.
    8. chopper drum (1) according to one of claims 6 or 7, wherein the cutting knife (90) comprise at least one short knife (90.2), which has such a length and is arranged such that the at least one short knife (90.2) from one of the Knife holder (20) extends up to an axially of the drum jacket (11) to the relevant knife holder (20) directly adjacent to the intermediate knife holder (25) and is fastened to a respective knife holder (22) of the respective knife holder (20) and the relevant intermediate knife holder (25) .
    9. chopper drum (1) according to claim 4 or 7, wherein all cutting knives (90) of the chopper drum (1) are designed like the at least one long knife (90.1), a first group of cutting knives (90) circumferentially around the drum casing (11) are distributed on the first pair of knife carriers (20.1, 20.2) and a second group of the cutting knife (90) is arranged around the outside of the drum shell (11) distributed on the second pair of knife carriers (2Q.3, 20.4).
    10. chopper drum (1) according to claim 5 or 8, wherein all cutting knives (90) of the chopper drum (1) are designed like the at least one short knife (90.2), wherein in number half of the cutting knives (90) circumferentially around the drum shell (11) distributed on the side of the first pair of knife carriers (20.1, 20.2) and the other half of the
    B E2016 / 5789
    Cutting knives (90) distributed around the outside of the drum casing (11) are arranged on the side of the second pair of knife carriers (20.3, 20.4), with each half of cutting knives (90) having a first group of cutting knives (90) on one knife carrier (20.1, 20.4) and axially
    [5]
    5 of the drum jacket (11) directly adjacent intermediate knife carrier (25) of a second group of cutting knives (90) on the other knife carrier (20.2, 20.3) and the axiai of the drum jacket (11) directly adjacent intermediate knife carrier (25) of the respective pair of knife carriers (20.1, 20.2;
    [6]
    10 20.3, 20.4) is arranged
    B E2016 / 5789
    Summary
    Chopper drum for a forage harvester
    5 chopper drum (1) for a forage harvester, which has a circular cylindrical drum body (10) with a drum shell (11), which defines an outer diameter of the drum body (10) and has a predetermined axial length, and two pairs of knife carriers (20, 20.1, 20.2 ; 20.3, 20.4). Each knife carrier (20) is formed with a plurality of knife carrier segments and
    10 in an annular array of its knife carrier segments releasably attached to the outer diameter of the drum body. A first pair of knife carriers is arranged axially offset from one another on a first axial side of the drum casing. A second pair of knife carriers is axially offset from one another on a second axial side of the drum shell.
    [7]
    15 In order to facilitate operation of the chopper in a half-knife, an intermediate knife holder (25.1, 25.2) designed like this knife holder is provided axially between the first pair of knife holders and between the second pair of knife holders and releasably attached to the outer diameter of the drum body.
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    同族专利:
    公开号 | 公开日
    DE102015120308A1|2017-05-24|
    BE1024309A1|2018-01-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2161065A|1984-07-04|1986-01-08|Fortschritt Veb K|Chaff cutter drum|
    DE202010006714U1|2010-05-12|2010-08-05|Maschinenfabrik Bernard Krone Gmbh|Forage|
    DE102012101270A1|2012-02-17|2013-08-22|Claas Saulgau Gmbh|Cutter head for forage harvester, has chaff-cutters formed as shell knife with curved inner surface, where cutting edge of one of chaff-cutters comprises recess in longitudinal extension of chaff-cutter series|
    DE102012023431A1|2012-11-30|2014-06-05|Claas Saulgau Gmbh|Knife carrier for a chopper drum and chopper drum for a forage harvester|
    US3126931A|1964-03-31|Knife support structure |
    CS164089B1|1973-07-27|1975-11-07|
    FR2287842B1|1974-10-16|1978-11-24|Deere John Cie Francaise|
    法律状态:
    2018-02-28| FG| Patent granted|Effective date: 20180130 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015120308.1A|DE102015120308A1|2015-11-24|2015-11-24|Chopper drum for a forage harvester|
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