• 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:
    It is a round baler for stalk crop with a mounted on a chassis (1) press housing (2) having a chassis fixed housing part (3) and on this housing part (4) about an upper pivot axis (5) pivotally mounted ejector flap (4), with on the chassis-fixed housing part (3) and the ejector flap (4) distributed, a compression chamber circumferentially limiting, connected to a drive press rollers (6, 7) and described with a device for wrapping the pressed stalk bales with a sheath (13). In order to create advantageous construction conditions, it is proposed that the pressure roller (7) of the ejection flap (4), which delimits an ejection opening for the shrouded bales of straw, can be uncoupled from the drive via a clutch (14).
    公开号:AT517477A4
    申请号:T50921/2015
    申请日:2015-10-30
    公开日:2017-02-15
    发明作者:
    申请人:Göweil Maschb Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a round baler for stalk crop with a mounted on a chassis press housing having a chassis-fixed housing part and a hinged to this housing part about an upper pivot axis ejector flap, with distributed to the chassis-fixed housing part and the ejector flap, a compression chamber peripherally limiting, with a drive associated press rolls and with a device for wrapping the pressed straw bales with a sheath.
    For the production of round bales from agricultural stalk material round balers are used, which have arranged on a chassis pressing housing with a pressing chamber, the jacket of drivable, mounted in the press housing press rolls is formed (EP 1 602 270 A1). The picked up by means of a receiving conveyor when driving off the ground stalk material is optionally conveyed after crushing between two press rolls in the press chamber and circulated through the driven press rolls and wound into a bale, by the current supply of winding in the outside of the already formed winding applying Halmguts is increasingly compressed.
    The round bale thus formed is then wrapped within the press chamber with a foil or net before it is ejected. For this purpose, the press housing is divided into a housing part fixed to the chassis and a discharge flap mounted pivotably about this on an upper pivot axis. Since the orbital movement of the crop in the closed pressing chamber causes an upward conveyance of the crop in the region of the discharge flap and is discharged from the compression housing by the lower pressing rollers of the chassis-fixed housing part of the shrouded round bale, the round bale rolling out of the press housing and the pressing rollers rotate the ejector flap in the same direction with the result that the end-side press roller, which limits the ejection opening formed by the ejection flap and rests on the rolling round bale when opening the ejector, is driven in the contact area in opposite directions to the movement of the surface of the round bale. The associated additional burden of the round bale sheathing shell, which is already exposed due to the compaction pressure of the round bale considerable tensile stresses, brings with it the risk of overloading the shell and thus an insufficient cohesion of the round bale.
    The invention is therefore based on the object, a round baler in such a way that the finished round bales can be discharged without jeopardizing its outer shell of the press housing.
    Based on a round baler of the type described above, the invention solves the problem set by the fact that the one discharge opening for the coated straw bales limiting press roller of the ejection flap can be disengaged via a clutch from the drive.
    Since, according to this measure, the drive of the ejection opening bounding press roller of the ejection flap can be switched off via the clutch and due to this shutdown, this press roller is freely rotatable, the ejector flap of the press housing with this freely rotatable press roller on rolling out of the press housing round bales, if the ejector is opened. This means that only compressive forces can be exerted on the round bales on the freely rotatable press roller, resulting in no additional burden, but rather to a relief of the shell due to the radially outward pressure of the pressed straw on the shell. At least the otherwise existing risk of overloading the shell can be avoided and thus secured that the round bale is held together by the shell in its shape.
    If the clutch for the discharge opening limiting press roller is actuated in dependence on the opening angle of the ejection flap, so can in a simple
    Way the timely uncoupling of the ejection opening when opening the ejection flap limiting press roller can be ensured by the press roller drive. If the ejection flap is closed again after ejection of the coated round bale to form a new round bale, then the end-side press roll must be reconnected to the drive via the switching coupling.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows a round baler according to the invention for stalk material in a partly torn schematic side view with the press housing closed, FIG. 2 shows this round baler in a partially torn-off side view with a partially opened ejection flap, FIG.
    Fig. 3 shows a section along the line III-III of FIG. 1 in the region of the clutch for the ejection opening limiting press roller of the ejector flap in a larger scale and
    Fig. 4 is a representation corresponding to FIG. 3 with opened clutch between the drive and the press roller.
    The round baler according to FIGS. 1 and 2 has a mounted on a chassis 1 press housing 2, which is divided into a chassis-fixed housing part 3 and an ejector flap 4, which is mounted pivotable about an upper pivot axis 5 on the chassis-fixed housing part 3. The press housing 2 comprises a press chamber which is bounded on the circumference by driven press rolls 6, 7. The to a round bale 8 aufwickelnde and to be compacted stalk material is received by a receiving conveyor 9 from the ground and optionally promoted after crushing between two forming an inlet pressure rollers 6 in the bale chamber when attached by means of a drawbar 10, for example, to a farm tractor round baler on the on a stalk field is pulled.
    The drive of the press rollers 6, 7 takes place in a conventional manner via a PTO, not shown for reasons of clarity, wherein the individual press rollers 7 provided with outside of the pressing chamber, are provided by a chain 11 drivable sprockets 12. As can be seen from FIG. 1, the chain track is designed such that the ejection flap 4 can be swung up without interrupting the drive of the press rollers 6, 7 assigned to the ejection flap 4. Because of this press roller drive introduced via the receiving conveyor 9 in the pressing chamber stalk material is initially supplied by the subsequent to the press chamber inlet lower press rollers 6 of the chassis fixed housing part 3 of the end side press roller 7 of the ejector 4 before it through the subsequent press rollers 6 along the discharge flap 4 in a Circulating motion is promoted to be performed by the press rollers 6 of the housing part 3 back down. The supplied via the receiving conveyor 9 stalk material is thus wound turn by turn to a stalk straw and increasingly compressed with increasing winding diameter until the finished round bale 8 is covered by a foil or a net to hold the stalk material in the form of a compact round bale 8. The shell 13 provided for the casing is introduced in a conventional manner into the pressing chamber and wound around the straw wrap before the discharge flap 4 is swung up to discharge the coated round bale 8.
    As can be seen from FIG. 2, the round bale 8 rolling out of the press housing 2 during opening of the ejection flap 4 abuts against the end-side press roll 7, which limits the ejection opening forming, which, in the case of a continuous drive of this press roll 7, counteracts one Movement direction of the surface of the round bale 8 extending movement of the press roller 7 would lead in the contact area. In order to avoid the associated with such a drive movement of the press roller 7, additional loads on the round bale 8 sheath 13, the end-side press roller 7 is uncoupled by a clutch 14 from the drive, so that the press roller 7 is held freely rotatable and from the round bale 8 against the Direction of rotation of the remaining press rollers 6 can be taken. Due to this rotational drive of the press roller 7 through the round bale 8 additional tensile stresses of the
    Round bale 8 sheathing sleeve 13 avoided and thus excluded the risk of overloading the shell 13.
    In Figs. 3 and 4, the clutch 14 between the pressing roller 7 and the associated sprocket 12 of the press roller drive is shown in more detail. This clutch 14 is designed as a dog clutch, which is actuated via a shift fork 15 by means of a shift cylinder 16. If the shift cylinder 16 is acted upon, the clutch 14 is displaced from the drawn in Fig. 3 coupling position by moving the claw sleeve in the disengaged position of FIG. 4, in which the drive connection between the press roller 7 and the sprocket 12 is interrupted so that the press roller 7 is kept free to rotate. The application of the switching cylinder 16 is advantageously controlled in dependence on the opening angle of the ejection flap 4 and can take place against a restoring force in order to avoid a two-sided loading of the switching cylinder 16. Via a corresponding sensor, the opening angle can be detected, in which the switching cylinder 16 is to be acted upon. If the ejection flap 14 is closed again after rolling out of the round bale 8 from the housing 2, then the clutch 14 is closed again, so that the end-side press roller 7 of the ejection flap 4 is driven together with the other press rollers 6 to form a new Halmgutwickels.
    权利要求:
    Claims (2)
    [1]
    claims
    1. round baler for stalk crop with a on a chassis (1) arranged press housing (2), which has a chassis fixed housing part (3) and on this housing part (4) about an upper pivot axis (5) swing-mounted ejector flap (4) on the chassis-fixed housing part (3) and the discharge flap (4) distributed, a pressing chamber circumferentially bounding, connected to a drive press rollers (6, 7) and with a device for wrapping the pressed straw bales with a sheath (13), characterized in that the one ejection opening for the coated straw bales limiting press roller (7) of the ejection flap (4) via a clutch (14) can be disengaged from the drive.
    [2]
    2. Round baler according to claim 1, characterized in that the switching clutch (14) for the discharge opening limiting press roller (7) in response to the opening angle of the ejection flap (4) is actuated.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3162187A1|2017-05-03|
    AT517477B1|2017-02-15|
    EP3162187B1|2018-04-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2105644B|1982-09-15|1985-08-21|Sperry Corp|Baling machines|
    DE3314314C2|1983-04-20|1994-10-27|Claas Ohg|Roll baler for agricultural crops with two-part baling chamber housing|
    US6272825B1|1999-09-15|2001-08-14|Hay & Forage Industries|Round baler having hydraulically sequenced clutch and tailgate cylinders|
    DE102004027308A1|2004-06-04|2005-12-29|Welger Maschinenfabrik Gmbh|Round baler for agricultural stalks|DE102019209345A1|2019-06-27|2020-12-31|Deere & Company|Round baler and method of operating a round baler|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50921/2015A|AT517477B1|2015-10-30|2015-10-30|Round baler for stalks|ATA50921/2015A| AT517477B1|2015-10-30|2015-10-30|Round baler for stalks|
    EP16191134.2A| EP3162187B1|2015-10-30|2016-09-28|Round baler for stalk|
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