• 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 feed roller (34) for a forage harvester (10) comprises a number of segments (64) which follow one another in the circumferential direction and which are mounted rotatably about an axis of rotation. The segments (64) designed as a hollow body forming an open or closed cavity.
    公开号:BE1021768B1
    申请号:E2013/0858
    申请日:2013-12-24
    公开日:2016-01-15
    发明作者:Matthias Stein
    申请人:Deere & Company；
    IPC主号:
    专利说明:

    Infeed roller for a forage harvester
    The invention relates to a feed roller for a forage harvester according to the preamble of claim 1, and a collection assembly.
    State of the art
    Forage harvesters are used for harvesting crops that have been harvested from the soil or cut off and brought together by means of a header. By a rear transfer opening of the header, the crop is then taken over by a feed conveyor of the forage harvester, which contains superimposed feed rollers, of which usually the upper feed rollers are biased against the lower feed rollers by spring and / or cylinder force vorzuverdichten the crop and to feed a chopper drum. By the latter, it is chopped into small pieces and fed via a Nachbeschleuniger an ejector, through which it is overloaded on a transport vehicle with a loading container. The chopped crop is usually used for animal feed or biogas production.
    In particular, the front, upper feed rollers are usually constructed of individual, circumferentially successive segments, which have an approximately L-shaped cross section in itself and are welded to each other, see. DE 31 29 693 C2. The outwardly projecting webs form carriers for the crop. The feed roller is made of stainless steel, i. a non-magnetizable material to as little as possible disturbing the arranged in the underlying Eirizugswalze metal detector which detects induction by means of ferromagnetic foreign body induced changes in a magnetic field generated by a permanent magnet between the two feed rollers as little as possible.
    The feed roller according to DE 32 28 123 A1 is composed of U-shaped segments which are interconnected by spot welding.
    The previous, single-walled design of the rollers makes materials of high stiffness and strength and thus high density necessary. The high weight results primarily from the choice of materials.
    task
    The problem underlying the invention is seen to provide a feed assembly for a forage harvester, the feed roller is characterized by comparable weight and durability by reduced weight. solution
    This problem is inventively solved by the teaching of claim 1, wherein in the other claims features are listed, which further develop the solution in an advantageous manner.
    A feed roller for a forage harvester comprises a number of circumferentially successive segments which are rotatably mounted about a rotation axis. The segments each comprise outer, radially extending regions in the form of walls or ridges, between which there is a flat, circumferentially extending region in the form of a bottom or an outer wall. The segments have an open or closed cavity formed by stiffening ribs extending between the walls or inner, circumferentially extending walls connected to the outer wall by diagonal connecting walls. In this way, the weight of the feed roller can be substantially reduced with comparable stability.
    Exemplary embodiment
    In the drawings, three embodiments of the invention described in more detail below are shown. It shows:
    1 shows a forage harvester in side view and in a schematic representation,
    2 is an exploded view of a first embodiment of the front upper feed roller of the forage harvester,
    Figure 3. An exploded view of a second embodiment of the front, upper feed roller of the forage harvester, and
    Fig. 4 is a perspective view of a third embodiment of the front, upper feed roller of the forage harvester.
    A self-propelled forage harvester shown in Figure 1 builds on a frame 12 carried by front and rear wheels 14 and 16. The operation of the forage harvester 10 takes place from a driver's cab 18, from which a harvesting material receiving device 20 in the form of a pick-up can be viewed. By means of the Erntegutaufnahmevorrichtung 20 received from the ground Good, z. As grass or the like, is fed to a Häckselaggregat, which is constructed here of a staffed with chopping blades 48 chopper drum 22, which chops it in cooperation with a counter-blade 38 into small pieces and it gives a conveyor 24. In other forage harvesters, especially cultivated or pulled forage harvesters, that could. Chopping unit instead of a chopper drum 22 also consist of a Scheibenradhäcksler. The crop leaves the harvesting machine 10 to a moving trailer on a height adjustable and rotatable about the vertical axis discharge shaft 26. Between the chopper drum 22 and the conveyor 24 is a Nachzerkleinerungsvorrichtung 28 through which the material to be conveyed of the conveyor 24 is fed tangentially.
    Between the Erntegutaufnahmevorrichtung 20 and the cutterhead 22, the estate is transported by a feed conveyor with lower feed rollers 30, 32 and upper feed rollers 34, 36 which are mounted within a feed housing 50. The feed rollers 30 to 36 are also referred to as pre-press rollers, since the upper feed rollers 34, 36 are biased by hydraulic and / or spring force against the lower feed rollers 30, 32, so that the crop between the feed rollers 30 to 36 is pre-compressed and cut better can. In the following, directional details, such as rear and front, refer to the forward direction V of the forage harvester 10, which runs from right to left in FIG.
    Within the front, lower feed roller 30, a metal detector 40 is arranged, - which comprises in a conventional manner juxtaposed permanent magnets and induction coils or other suitable sensors for detecting the respective magnetic field strength or its change. Reference may be made to the state of the art according to EP 0 702 248 A2, the disclosure of which is incorporated by reference into the present documents. The magnetic field sensor of the metal detector 40 is connected to an evaluation circuit 42, which in turn is coupled to an input and display device 100 in the cab 18 to alert the operator to the presence of a ferromagnetic foreign body in the crop stream between the infeed rollers 30 and 34. In addition, the evaluation circuit 42 causes an immediate stop of the feed rollers 30 to 36 in case of a response.
    FIG. 2 shows an exploded view of a first embodiment of a front, upper draw-in roll 34 according to the invention. This draw-in roll 34 comprises a central support body 52, which is composed of a total of six parts 54 in the axial direction. These parts 54 each have ten flat outer surfaces, thus are ten-cornered. It could also be any other number of outer surfaces and, in particular depending on the width of the feed roller 34, also a different number
    Shares 54 are chosen. On the inside, the parts 54 are provided at one end with a radially extending wall 56, which form a central, axial opening. At the openings 56 adjoins the wall 56 in each case an axial, cylindrical portion 58 of the respective part 54 of the support body 52, which extends approximately over a third of the length of the part 54. Starting from the cylindrical sections 58, ribs 60 each extend to the corners formed between the ten outer surfaces. There are therefore a total of ten ribs 60 available. The ribs 60 taper axially toward the other end of the part 54 and have an edge extending diagonally from the outer end of the cylindrical portion 58 to (at the end of the part 54 spaced from the wall 56) almost to the outer wall of the part 54. Adjacent parts 54 of the support body 52 are connected to the walls 56 by axial screw 62 with each other. At their other ends, the parts 54 are glued to each other at local dividing lines 66 or connected in any other way (for example, form-fitting). It would also be conceivable to produce two parts 54 in one piece, so that the dividing line 66 would then only be thought. The parts 54 are preferably made by injection molding of plastic. The central support body 52 is thus stiffened by the walls 56, the axial sections 58 and the ribs 60 inside and relatively stable despite low weight.
    To the circumference of the support body 52 a total of ten segments 64 are distributed in the ready state. The segments 64 have on their outer sides outer walls 68 which extend approximately radially, and a flat, approximately circumferentially extending bottom 70. The walls 68 and the bottom 70 thus form a U-shaped profile. On their insides, i. on the side facing the support body 52 in the assembled state, the segments 64 comprise stiffening ribs 72 which extend from the bottom 70 in the direction of the support body 52. The stiffening ribs 72 extend in a star shape from a cylindrical, radial wall 74 with a central cavity. Through the central cavity of this wall 74 extends in the mounted state in each case a screw 76 which is screwed into a molded-on support body 52 holder 78 fixed nut. The segments 64 are, like the parts 54 of the support body 52, made by injection molding of plastic. The screws 76 may extend through bores in the approximately circumferentially extending legs of L- or U-shaped bodies 80 made of metal and provided with tines for crop conveyance on one or both of their outer legs. Alternatively, flat serrations can be screwed to the leading or trailing wall 68 of the segment 64 in itself. The axial end surfaces of the support body 52 are provided with holes on which provided with stub shafts flanges (not shown, but see Figure 4) are fastened by means of screws.
    3 shows a second embodiment of a feed roller 34 according to the invention. The feed roller 34 of FIG. 3 is composed of a total of ten circumferentially successive segments 64, although a larger or smaller number of segments 64 could also be selected here. The individual segments 64 have an approximately V-shaped cross section with bottoms 88 flattened to form a central, axial cavity. They thus include radially extending leading and trailing walls 82 and axially outer walls 84 at both ends. From the bottoms 88, cylindrical walls 90 with a central cavity extend radially outward. The outer walls 82 and 84 and the cylindrical walls 90 are interconnected by diagonally extending, honeycomb-like stiffening ribs 86, which emanate from the cylindrical walls 90 in a star shape. The stiffening ribs 86 and the cylindrical walls 90 extend in the radial direction approximately over 2/3 of the radial dimension of the segment 64.
    Furthermore, 34 U-shaped inserts 92 are inserted into the free interior of the segments 64 in the ready state of the feed roller, which extends between the walls 82, 84 to the top of the stiffening ribs 86 and the cylindrical walls 90.
    The inserts 92 have flat, extending approximately in the circumferential direction of the feed roller 34 extending floors 94 and leading and trailing walls 96 which extend parallel to the walls 82 of the segments 64 and abut it in the ready state. The inserts 92 are fixed to the segments 64 by screws 97 which extend through openings in the insert and into threads (or nuts mounted therein) in the cavity of the cylindrical walls 90 of the segments 64. The segments 64 are fixed together by bolting with screws 100 that extend through approximately circumferentially extending openings in the walls 82 and 96 and associated nuts 102. The axial end faces of the segments 64 are provided with bores on which flutes (not shown but see FIG. 4) provided with stub shafts are fastened by means of screws.
    In the embodiment according to FIG. 3, the segments 64 are made by injection molding
    Made of plastic. The inserts 92 may also be made of plastic or metal. In the second case, the inserts 92 may be provided with serrated rails (not shown) for crop conveying. By contrast, if the inserts 92 are made of plastic, the screws 97 can support additional bodies 80 with serrated strips.
    In the embodiment shown in FIG. 4, the conveying roller 34 comprises segments 64, which are produced as hollow profiles. These segments 64 thus comprise outer, approximately circumferentially extending, walls 104 and inner, approximately circumferentially extending, walls 106. The walls 104 and 106 are connected by approximately diagonal connecting walls 108. The walls 104 and 106 are flat in themselves. The walls 104 and 106 form at a first end cylindrical webs 110 and at the other end cylindrical Hohlräumel 12. The cavities 112 of a segment 64 each receive the webs 110 of the adjacent segment 64 on. The segments 64 can thus be easily pushed together. At one end of each segment 64 there is provided a radially outwardly projecting, axially extending web 114 which is provided with openings for attachment of a serrated strip (not shown). Of course, the position of the cavities 112 and webs 110 of the outer wall 104 and / or the inner wall 106 could be exchanged, just as it is arbitrary whether the web 114 is integrally formed on the leading or trailing end of the segments 64. At the axial ends of the segments 64, flanges 116 are fixed to stub shafts 118 by screws 120 which thread into the cavities 112 (or nuts attached thereto). The segments 64 are made in the embodiment of Figure 4 by injection molding or continuous casting of plastic. They could also be produced from aluminum and in particular by continuous casting.
    By using closed (Figure 4) or open cavities (Figures 2 and 3) forming hollow bodies for the segments 64, the feed roller 34 of the invention builds much easier than previous, built from solid, single-walled metal sheets or solid plastic bodies feed rollers. The inventive embodiments of the feed roller 34 can also be used for one or more or all of the other feed rollers 30, 32, 36 of the forage harvester 10 of FIG. .
    Through the use of plastic avoids rotating metal parts in the
    Neighborhood of the metal detector 40, which allows an increase of its detection threshold. The segments 64 (in all embodiments) and the support body 52 in the embodiment of Figure 2 may also be made of aluminum or stainless steel or any other metal. It may be useful to insert insulating elements between the segments 64 and possibly also between the elements 64 and the support body 52 (embodiment of Figure 2) to reduce eddy currents due to changes in the magnetic field of the metal detector or to avoid.
    The segments 64 of the invention have due to their releasable attachment, whether by frictional attachment (screws) in the embodiments of Figures 2 and 3 or by the positive fixing of the profiles of the segments 64 in the embodiment of Figure 4 further compared to the known, welded constructions Advantage that they can be easily removed in case of damage and repaired or replaced, without having to replace the entire feed roller 34 immediately.
    权利要求:
    Claims (10)
    [1]
    claims
    A feed roller (34) for a forage harvester (10) comprising a plurality of circumferentially successive segments (64) rotatably mounted about an axis of rotation and respective outer, radially extending portions in the form of walls (68, 82). or webs (114) between which there is a flat, circumferentially extending portion in the form of a bottom (70, 88) or outer wall (104), characterized in that the segments (64) are an open or closed cavity comprising stiffening ribs (72, 86) extending between the walls (68, 82) or inner, circumferentially extending walls (106) joined to the outer wall (104) by diagonal connecting walls (108) becomes.
    [2]
    Second feed roller (34) according to claim 1, wherein the segments (64) are detachably mounted. ,
    [3]
    Third feed roller (34) according to claim 1 or 2, wherein the segments (64) are connected to a central support body (52).
    [4]
    4. feed roller (34) according to claim 3, wherein the support body (52) with inner ribs (60) is provided.
    [5]
    5. feed roller (34) according to any one of claims 1 to 4, wherein the stiffening ribs (72, 86) on the inside and / or outside of the segments (64) are mounted.
    [6]
    6. feed roller (34) according to one of claims 1 to 5, wherein the segments (64) have an approximately U-shaped or V-shaped cross-section.
    [7]
    7. feed roller (34) according to any one of claims 1 to 6, wherein the segments (64) are connected directly to each other.
    [8]
    8. feed roller (34) according to claim 7, wherein the segments (64) are positively connected or interconnected by separate connecting elements.
    [9]
    9. collection assembly for a forage harvester with at least two mutually parallel, oppositely driven feed rollers (30, 34), between which a Erntegutstrom can be passed, wherein a metal detector (40) for detecting ferromagnetic foreign bodies in Erntegutstrom in the interior of one of the feed rollers (30) is and the other feed roller (34) is designed according to one of claims 1 to 8 and their segments (64) made of plastic or aluminum.
    [10]
    10. Forage harvester (10) with a chopping unit and a chopper assembly upstream intake assembly according to claim 9.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE10021657C2|2002-08-01|Harvester, especially self-propelled forage harvesters
    EP1228683B1|2004-08-18|Combine with a rotational conveyor
    EP1287732A1|2003-03-05|Harvester head
    EP2842412B1|2016-10-26|Crop processing and/or conveying element for a forage harvester
    DE102012208464B3|2013-07-04|Conditioning device for self-propelled forage harvester, for harvesting plants or parts of plants, has crop residues removing element whose surface is adjacent to roller and arcuately-extended around part of circumference of roller
    BE1025479B1|2019-03-18|Agricultural harvester for processing and conveying crop with a sensor assembly for detecting unwanted hazardous substances and ingredients in the crop
    DE102013211829A1|2014-12-24|Element for supporting and / or guiding crop in a harvester
    BE1021768B1|2016-01-15|FEED ROLLER FOR A FIELD CHEST
    BE1021663B1|2015-12-23|cylinder threshing mechanism
    DE102012201906B4|2017-03-30|Feed assembly for a forage harvester
    EP1844645B1|2010-03-03|Rotor for a straw chopper with knives and fanning elements
    DE102012000301A1|2013-07-11|mower
    EP3449718B1|2021-05-12|Weighing device and harvesting device
    EP3289854B1|2019-09-04|Drive wheel for an inclined conveyor, inclined conveyor and assembly comprising a self-propelled harvesting machine and the inclined conveyor
    DE19916645A1|2000-10-26|Conveyor assembly
    EP2106685B1|2011-04-27|Forage harvester with conditioning device
    DE102018003555A1|2019-11-07|Feed roller for a harvester
    DE102007053568A1|2009-05-14|Harvester, particularly trailer with loading facility and bailing press, has receiving device for receiving product harvested from earth and cross conveyor, which has cross conveyor rollers assigned to lateral edge areas of receiving rotor
    DE102019202066A1|2020-08-20|Discharge spout for a forage harvester
    EP3354126B1|2020-09-23|Cutter and shredding drum for a chaff cutter
    EP1712120B1|2008-04-09|Discharge spout for a forage harvester
    DE102021102161A1|2021-08-12|Cradle
    DE811510C|1951-08-20|Collection box for clippings on mowing machines
    DE102007038092A1|2009-02-12|Conditioning device for a forage harvester
    DE10232802A1|2004-02-12|Maize harvester has reels mounted at ends of conveyor screws for maize kernels which separate leaves and discharge them on to ground
    同族专利:
    公开号 | 公开日
    DE102013200183B3|2014-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3019166A1|1980-05-20|1982-01-07|Claas Ohg, 4834 Harsewinkel|Field chopper with metal detector - has proximity detector in first plastic roller extending towards second one|
    DE3129693A1|1980-10-01|1982-05-19|Sperry Corp., 17557 New Holland, Pa.|"INPUT ROLLER, ESPECIALLY FOR FIELD CHOPPER"|
    DE3228123A1|1981-08-10|1983-02-24|Sperry Corp., 17557 New Holland, Pa.|HARVESTED INPUT ROLLER|
    US5504428A|1994-09-16|1996-04-02|Deere & Company|Magnetic metal detector mounted in a feed roll of a harvisting machine|DE102018003555B4|2018-05-03|2020-03-12|Maschinenfabrik Bernard Krone GmbH & Co. KG|Feed roller for a harvester|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE132001835|2013-01-09|
    DE201310200183|DE102013200183B3|2013-01-09|2013-01-09|Draw-in roller of feed assembly for forage harvester, has segments including stiffening ribs extended between walls, and circumferentially extending walls which are connected to outer walls of segments by diagonal connecting walls|
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