• 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:
    Infeed mechanism (10) for an agricultural machine, with a feeder housing (11) and with a feed roller frame (13), which is displaceable relative to the feeder housing (11), with feed roller pairs forming feed rollers (14, 15, 16, 17), wherein first feed rollers (14, 16) of the feed roller pairs on the feeder housing (11) and second feed rollers (15, 17) of the feed roller pairs are rotatably mounted on the feed roller stand (13), with an adjusting force provide the positioning elements (18), wherein the abutment force of the Anstellelemente (18) tends to shift the second feed rollers (15, 17) of the feed roller pairs towards the first feed rollers (14, 16) of the feed roller pairs with reduction of a nip on the respective feed roller pair, wherein the Anstellelemente of fluid-actuated cylinders (18) are provided, which provide either a tensile force or a compressive force as an adjusting force, wherein when the respective druc kmittelbetätigte cylinder (18) as a contact force provides a compressive force, the maximum extended position provides an end stop for a defined minimum nip, whereas when the respective pressure-medium-actuated cylinder (18) provides a pulling force as the contact force, the maximum retracted position of the end stop for the defined, minimal nip provides.
    公开号:BE1025318B1
    申请号:E2018/5319
    申请日:2018-05-16
    公开日:2019-01-28
    发明作者:Mathias Schmitt；Martin Winkler
    申请人:Claas Saulgau Gmbh；
    IPC主号:
    专利说明:

    Einzuqswerk
    The invention relates to a feed mechanism for an agricultural machine, in particular for a forage harvester.
    EP 0 872 171 B1 discloses a feed mechanism for an agricultural machine with feed rollers that form pairs of feed rollers. A total of four feed rollers are shown, which form two pairs of feed rollers, first, lower feed rollers being rotatably mounted on a feed housing of the feed mechanism, and second, upper feed rollers being rotatably mounted on a feed roller stand, which is displaceable to the feed housing in order to be displaced by a second, upper feed rollers to adjust a nip between the feed rollers of the pairs of feed rollers. The feed mechanism known from this prior art has adjusting elements which are provided by spring elements, the adjusting elements providing an adjusting force which tends to displace the second, upper intake rollers in the direction of the first, lower intake rollers and thus the roller gap at the respective one Reduce feed roller pair. A displacement of the second, upper feed rollers in the direction of the first, lower feed rollers which is brought about by the contact force is limited by connecting devices which, as it were, provide a stop for the movement of the second, upper feed rollers in the direction of the first, lower feed rollers and thus prevent them. that the feed rollers of the feed roller pairs touch. Another feed mechanism of an agricultural machine is known from EP 2 409 563 B1, namely again a feed mechanism with two pairs of feed rollers, each consisting of two feed rollers, namely first, lower feed rollers and second, upper feed rollers, the second, upper feed rollers being conditioned by one Adjusting force, which is provided by adjusting elements designed as spring elements, can be displaced in the direction of the first, lower feed rollers.
    BE2018 / 5319
    In EP 2 409 563 B1 the movement of the second, upper feed rollers in the direction of the first, lower feed rollers of the feed roller pairs is restricted by cables which provide a kind of stop for the movement of the second, upper feed rollers in the direction of the first, lower feed rollers and thus prevent the feed rollers from touching.
    The provision of separate assemblies for the adjusting elements, which limit the movement of the second feed rollers in the direction of the first feed rollers, is structurally complex. Furthermore, during operation, these separate assemblies, which limit the movement of the second feed rollers in the direction of the first feed rollers, can become stuck and thus impair their function.
    The present invention has for its object to provide a novel feed mechanism. This object is achieved by a feed mechanism according to claim 1. In the pull-in mechanism according to the invention, the adjusting elements are provided by pressure-actuated cylinders, which provide either a tensile force or a compressive force as the adjusting force, and when the respective pressure-actuated cylinder provides a compressive force as the adjusting force, the maximum extended position of which provides an end stop for a defined, minimal roller gap. whereas if the respective pressure-actuated cylinder provides a pulling force as the contact force, the maximum retracted position of which provides the end stop for the defined, minimum roller gap.
    The feed mechanism according to the invention can dispense with separate assemblies which limit the movement of the second feed rollers in the direction of the first feed rollers. For this purpose, the adjusting elements of pressure-actuated cylinders are provided, which are dependent
    BE2018 / 5319 of whether they provide a tensile force or a compressive force as a contact force, in their maximally extended position or in their maximally retracted position, an end stop for the defined, minimum roller gap and thus an end stop for the movement of the second feed rollers in the direction of the first Provide feed rollers. As a result, not only can the design effort be reduced, there is also no risk that the function thereof will be impaired.
    The respective pressure-actuated cylinder is preferably designed as a hydraulic cylinder. Hydraulic cylinders are particularly preferred because they are robust and reliable.
    According to an advantageous development of the invention, the respective pressure-actuated cylinder has at least one adjustable fastening eye, via which the defined, minimal roller gap can be adjusted. The length of the hydraulic cylinder or the pressure-operated cylinder can be adjusted via an adjustable fastening eye in order to set the defined, minimal roller gap.
    According to an advantageous development of the invention, the respective pressure-operated cylinder has an integrated end position damping. Integrated end position damping avoids mechanical loads on the feed mechanism, namely when the respective pressure-operated cylinder is shifted into its end position serving as a stop.
    Preferred developments of the invention result from the subclaims and the description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being restricted to this. It shows:
    BE2018 / 5319
    Figure 1 is a view of a side wall of a feed mechanism according to the invention with a minimal roll gap. and
    Fig. 2 is the view of Fig. 1 with the maximum nip.
    The invention relates to a feed mechanism for an agricultural machine, in particular for a forage harvester.
    A feed mechanism 10 for an agricultural machine has a feed housing 11 with opposite side walls 12, as well as feed rollers 14, 15, 16, 17 forming pairs of feed rollers.
    First, lower feed rollers 14, 16 are rotatably mounted on the feed housing 11, the axes of rotation of which are fixed relative to the feed housing 11.
    Second, upper feed rollers 15, 17 are rotatably mounted on a so-called feed roller stand 13 of the feed unit 10, the feed roller stand 13 being displaceable relative to the feed housing 11. The axes of rotation of the second, upper feed rollers 15, 17 are stationary with respect to the feed roller stand 13, but can be displaced relative to the feed housing 11 in order to adjust a distance between the first feed rollers 14, 15 and the second feed rollers 16, 17 of the feed roller pairs.
    Fig. 1 shows the feed mechanism 10 with a minimum distance and therefore a minimal gap between the first feed rollers 14, 15 and the second feed rollers 16, 17 of the feed roller pairs, Fig. 2 shows the feed mechanism 10 with the maximum distance between the feed rollers of the feed roller pairs.
    The feed mechanism 10 has positioning elements which provide a positioning force, the positioning force tending to move the feed roller stand 13 to the feed housing 11 and thus the second feed rollers 15,
    BE2018 / 5319 to move in the direction of the first feed rollers 14, 16, while reducing a feed roller gap on the respective feed roller pair, wherein in the sense of the invention the respective adjusting element is provided by a pressure-actuated cylinder 18 which acts as either a pulling force or a compressive force provides.
    In the exemplary embodiment shown in FIGS. 1 and 2, the pressure medium-actuated cylinder 18 shown, which is preferably designed as a hydraulic cylinder, provides a compressive force around the second, upper feed rollers 15, 17 in the direction of the first, lower feed rollers 14, 16 of the feed roller pairs to shift, the maximum extended position of the pressure-actuated cylinder 18 provides an end stop for a defined, minimum roller gap in the area of the feed roller pair. Beyond this maximum extended position, the second feed rollers 15, 17 cannot be displaced in the direction of the first feed rollers 14, 16, so that separate elements serving as stops for this adjustment movement of the second feed rollers 15, 17 can be dispensed with.
    If, as shown in FIGS. 1 and 2, the pressure-actuated cylinder 18 provides a pressing force as the contact force, its maximum extended position acts as an end stop for the defined, minimum roller gap. On the other hand, when the respective pressure-actuated cylinder provides a tensile force, its maximum retracted position acts as an end stop for the defined, minimum roller gap.
    Then, when crop is conveyed through the infeed unit 10, the infeed rollers can be moved away from one another by the crops against the positioning force.
    In the exemplary embodiment shown, the respective pressure medium-operated
    Cylinder 18 is a cylinder tube 19, which is sometimes also referred to as a cylinder housing, and an extendable one from the cylinder tube 19
    BE2018 / 5319 and piston rod 20 that can be inserted into cylinder tube 19. In the exemplary embodiment shown, the cylinder tube 19 is attached to the feed housing 11 and the piston rod 20 is attached to the feed roller stand 13.
    In contrast to this, it is also possible for the cylinder tube 19 of the respective pressure-operated cylinder 18 to engage the feed roller stand 13 and the piston rod 20 of the respective pressure-operated cylinder 18 to engage the feed housing 11.
    Furthermore, it is possible to use a so-called plunger cylinder as the pressure medium-actuated cylinder 18, which does not have a separate piston, but in which, on the other hand, the piston rod of the same serves as a piston. Such plunger cylinders are known per se to the person skilled in the art here.
    As can be seen in FIGS. 1 and 2, the pressure-actuated cylinder 18, namely the cylinder tube 19 and the piston rod 20 thereof, engages the feed housing 11 and the feed roller stand 13 via fastening eyes 21, 22. At least one of these fastening eyes 21, 22 can be adjusted in order to adapt the pressure-actuated cylinder 18 in FIGS. 1 and 2 in its maximally extended position to the defined, minimum roller gap or to adjust the defined, minimum roller gap.
    It is possible that the fastening eye 21 of the cylinder tube 19 and / or the fastening eye 22 of the piston rod 20 can be adjusted accordingly.
    In contrast to this, it is also possible to provide adjustable fastening means on the feed housing 11 and / or feed roller stand 13, on which the fastening eyes 21, 22 of the pressure-actuated cylinder 18 engage in order to use the adjustable fastening means
    BE2018 / 5319 of feed housing 11 and / or feed roller stand 13 to set the defined, minimum roller gap.
    The respective pressure-actuated cylinder 18 preferably has integrated end position damping. When the piston rod 20 of the respective pressure-actuated cylinder 18 is moved into its maximally retracted or maximally extended position, the integrated end position damping comes into effect and thus prevents impacts on the feed mechanism.
    The pressure-actuated cylinder 18 can be designed as a single-acting cylinder or double-acting cylinder. Then, when the respective pressure-actuated cylinder is designed as a single-acting cylinder, it provides the contact force to displace the second feed rollers 15, 17 in the direction of the first feed rollers 14, 16 and in its maximum extended position in the event of a pressure force as Provision force or in its maximum retracted position to provide an end stop for the minimum roll gap as a setting force in the event of a tensile force.
    In the case of a double-acting cylinder, the roller gap can also be actively enlarged without the action of crop, by providing a force counteracting the positioning force, in order to carry out maintenance work in the area of the feed rollers, for example.
    With the invention, separate components which limit the adjustment movement of the second feed rollers in the direction of the first feed rollers can be dispensed with. Rather, the adjusting element, which is designed as a pressure-actuated cylinder and provides the adjusting force, also integrally provides an end stop in order not to fall below a defined, minimal roller gap.
    BE2018 / 5319
    The respective pressure medium-actuated cylinder 18 can preferably be adapted to the minimum roller gap via its fastening eyes 21, 22, or the minimum roller gap can be adjusted in this way.
    Integrated end position damping ensures that at least one
    End position of the respective pressure-operated cylinder 18 can be reached gently so as to avoid impacts on the feed mechanism.
    BE2018 / 5319
    LIST OF REFERENCE NUMBERS
    Infeed unit Infeed housing Side wall Infeed roller stand Infeed roller Infeed roller Infeed roller Infeed roller Adjusting element Cylinder tube Piston rod Fastening eye Fastening eye
    权利要求:
    Claims (9)
    [1]
    claims
    1. Infeed unit (10) for an agricultural machine, with a feed housing (11) and with a feed roller stand (13), which can be moved relative to the feed housing (11), with feed roller pairs forming feed rollers (14, 15, 16, 17), wherein first feed rollers (14, 16) of the feed roller pairs on the feed housing (11) and second feed rollers (15, 17) of the feed roller pairs on the feed roller stand (13) are rotatably mounted, with adjusting elements providing adjusting force, wherein the adjusting force of the adjusting elements tends to be that to shift the second feed rollers (15, 17) of the feed roller pairs in the direction of the first feed rollers (14, 16) of the feed roller pairs while reducing a roller gap on the respective feed roller pair, characterized in that the adjusting elements are provided by pressure-actuated cylinders (18), which are provided as a contact force provide either a tensile force or a compressive force, whereby if ever because pressure medium-actuated cylinder (18) provides a pressure force as the positioning force, the maximum extended position of which provides an end stop for a defined, minimum roller gap, whereas if the respective pressure medium-actuated cylinder (18) provides a tensile force as positioning force, the maximum retracted position of which provides the end stop for provides the defined, minimum roll gap.
    [2]
    2. Feed mechanism according to claim 1, characterized in that the respective pressure-operated cylinder (18) is designed as a hydraulic cylinder.
    [3]
    3. Feed mechanism according to claim 1 or 2, characterized in that the respective pressure-actuated cylinder is a cylinder tube (19)
    BE2018 / 5319 and a piston rod (20) which can be extended from the cylinder tube (19), the cylinder tube (19) on the feed housing (11) and the piston rod (20) on the feed roller stand (13) or the cylinder tube (19) on the Feed roller stand (13) and the piston rod (20) engages the feed housing (11).
    [4]
    4. Feeding mechanism according to one of claims 1 to 3, characterized in that the respective pressure-operated cylinder (18) has at least one adjustable fastening eye (21, 22), via which the defined, minimal roller gap can be adjusted.
    [5]
    5. Infeed mechanism according to claim 4, characterized in that the cylinder tube (19) and / or the piston rod (20) of the respective pressure-actuated cylinder (18) has an adjustable fastening eye (21, 22), via which the defined, minimal roller gap can be adjusted ,
    [6]
    6. Feeding mechanism according to one of claims 1 to 5, characterized in that the feed housing (11) and / or the feed roller stand (13) have adjustable fastening means for the respective pressure-actuated cylinder (18), via which the defined, minimal roller gap can be adjusted.
    [7]
    7. Feed mechanism according to one of claims 1 to 6, characterized in that the respective pressure-operated cylinder (18) has an integrated end position damping.
    [8]
    8. Infeed mechanism according to one of claims 1 to 7, characterized in that the respective pressure-actuated cylinder (18) is designed as a double-acting cylinder, via which a force acting counter to the contact force can be provided to enlarge the nip compared to the defined, minimal nip.
    BE2018 / 5319
    [9]
    9. Infeed mechanism according to one of claims 3 to 8, characterized in that the respective pressure-operated cylinder (18) is a plunger cylinder in which the piston rod serves as a piston.
    类似技术:
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    DE10362038A1|2005-08-25|Method and device for controlling the contact pressure of a pressure roller to a goods guide roller
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    BE1025992B1|2019-09-10|Feed-in of a forage harvester and method of operating the same
    EP2163149B1|2012-07-04|Intake device for a shredder device of a chaff cutter
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    同族专利:
    公开号 | 公开日
    DE102017111172A1|2018-11-22|
    BE1025318A1|2019-01-21|
    RU2694951C1|2019-07-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    WO2001047342A1|1999-12-27|2001-07-05|New Holland Belgium Nv|Crop processor roll arrangement for a forage harvester|
    EP2123146A1|2008-05-20|2009-11-25|CNH Belgium N.V.|Feed roll control system for a forage harvester|
    EP2305022A1|2009-09-30|2011-04-06|CLAAS Saulgau GmbH|Shredder device for self-propelled harvesters|
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    DE102005059953A1|2005-12-15|2007-07-05|Deere & Company, Moline|Forage|
    DE102006030971A1|2006-07-03|2008-01-17|Claas Selbstfahrende Erntemaschinen Gmbh|Drive system of a agricultural working machine|
    BE1019429A3|2010-07-22|2012-07-03|Cnh Belgium Nv|FOOD DEVICE FOR A FIELD FORMER.|
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    法律状态:
    2019-02-25| FG| Patent granted|Effective date: 20190128 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017111172.7|2017-05-22|
    DE102017111172.7A|DE102017111172A1|2017-05-22|2017-05-22|infeed|
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