• 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:
    Shaft flange (3) of an agricultural harvesting machine, in particular a forage harvester, which has a flange section (6) for fastening an assembly (1) of the harvesting machine to be driven, in particular a chopping drum of the forage harvester, and a shaft section (8) for connecting a belt pulley, with a section (11) of the shaft section (8) with at least one shaft seal (12), a section (13) of the shaft section (8) with a bearing (14) and a section (15) of the shaft section (8) with a hub - Section (9) of the belt pulley interacts, the partial section (15) of the shaft section (8), which interacts with the hub section (9) of the belt pulley, a tooth-free lower part section (15a) and a lower part section (15b) with teeth (16), and wherein the shaft section (8) at least continuously in and continuously between those subsections (11, 13) and the tooth-free lower part Lab section (15a) of the subsection (15), which interact with the bearing (14) and the or each shaft seal (12) and the hub section (9) of the belt pulley, is surface hardened.
    公开号:BE1022973B1
    申请号:E2015/5345
    申请日:2015-06-05
    公开日:2016-10-25
    发明作者:Gregor Wehner；Martin Stengele；Bernd Häring
    申请人:Claas Saulgau Gmbh；
    IPC主号:
    专利说明:

    Shaft flange of an agricultural harvester
    The invention relates to a shaft flange of an agricultural harvesting machine according to the preamble of claim 1.
    In agricultural harvesters, such as forage harvesters, shaft flanges are used, which on the one hand have a flange portion for mounting a driven assembly of the harvester and on the other hand, a shaft portion for connecting a pulley. The shaft portion of the shaft flange, which serves to connect a pulley, comprises a first portion which cooperates with at least one shaft seal, a second portion which cooperates with a bearing, and a third portion which cooperates with a hub portion of the pulley. The third section, which cooperates with the hub section of the pulley, comprises a tooth-free lower section and a lower section with teeth.
    In shaft flanges known in the art, the shaft portions thereof are surface-solidified only in the portion of the shaft portion cooperating with the or each shaft seal. Since such shaft flanges are highly loaded assemblies, there is a risk that they break during operation and therefore fail. There is therefore a need for shaft flanges, which are more resilient and therefore less prone to breakage.
    On this basis, the present invention seeks to provide a novel shaft flange of an agricultural harvester, which is less prone to breakage.
    This object is achieved by a shaft flange of an agricultural harvesting machine according to claim 1.
    According to the invention, the shaft section is at least continuous in and through between those sections and the non-toothed base portion of the subsection, which cooperate with the bearing and the or each shaft seal and the hub portion of the pulley, surface hardened. This can reduce the susceptibility to fracture of a shaft flange.
    Preferably, the shaft portion is surface hardened at least continuously in and through between those portions which cooperate with the bearing and the or each shaft seal and the hub portion of the pulley. Hereby, the susceptibility to fracture of a shaft flange can be further reduced.
    In particular, the shaft portion is further in a partial section, on which a clamping element for the hub portion engages, and / or is surface hardened in a transition region to the flange portion. Hereby, the susceptibility to fracture of a shaft flange can be further reduced.
    Particularly preferred is an embodiment in which the shaft portion of the shaft flange is surface hardened continuously between the transition region to the flange portion and an opposite end of the flange portion. Such a shaft flange is heavy duty and less prone to breakage.
    According to an advantageous development of the invention, the shaft section in the surface-hardened area on the surface has a Rockwell hardness between 50 HRC and 60 HRC. Starting from the surface, the hardness of the surface hardened portion of the shaft portion preferably decreases such that the shaft portion in the surface hardened portion has a Rockwell hardness of 40 HRC at a depth between 10 mm and 14 mm from the surface. Such a shaft section has a tensile strength of at least 1800 N / mm 2 up to 2200 N / mm 2 in the region of the surface. In the depth between 10 mm and 14 mm, the tensile strength is still in about 1300 N / mm2. Such a shaft flange is heavy duty. The susceptibility to breakage of the same is considerably reduced.
    Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
    Figure 1 is an assembly to be driven a harvester together with shaft flanges. and
    Fig. 2 shows a detail of Fig. 1 in the region of a drive-side Wellenflan cal.
    The present invention relates to a shaft flange of an agricultural harvesting machine. Such a shaft flange is also referred to as a drive flange.
    1 shows a section of a harvester designed as a forage harvester in the region of a chopper drum 1, wherein a shaft flange 2 or 3 engages on each side of the chopper drum 1. The shaft flange 3 is a drive-side shaft flange and the shaft flange 2 is a driven-side shaft flange. On the drive side shaft flange 3 engages a pulley 4, which is coupled via a drive belt to a drive unit. On the output side shaft flange 2 also engages a pulley 5, via which this output side shaft flange 2 is coupled to a driven from the chopper drum 1 further assembly of the forage harvester.
    FIG. 2 shows a detail of the arrangement of FIG. 1 in the region of the drive-side shaft flange 3. The drive-side shaft flange 3 has a flange section 6, via which the shaft flange 3 is connected to a fastening flange 7 of the chopper drum 1.
    Furthermore, the shaft flange 3 has a shaft section 8, which extends from the flange section 6 in the axial direction of the chopper drum 1. At this shaft portion 8, the pulley 4 engages, namely via a hub portion 9 of the pulley. 4
    In the exemplary embodiment shown, the hub portion 9 and the actual pulley 4 are provided by two separate assemblies, which are connected to one another via screws 10. In contrast, it is also possible that the hub portion 9 is an integral part of the pulley 4.
    For example, it can be seen from FIG. 1 that in the case of the belt pulley 5 acting on the driven-side shaft flange 2, the corresponding hub section 9 is an integral part of the belt pulley 5.
    The shaft section 8 of the shaft flange 3 has a first section 11, on which engage in the embodiment shown two shaft seals. At a thereto adjacent portion 13 of the shaft portion 8 engages a bearing 14, which is a spherical roller bearing in the embodiment shown. Adjacent thereto, a partial section 15 of the shaft section 8 adjoins, on which the hub section 9 of the belt pulley 4 engages. The partial section 15 of the shaft section 8, on which the hub section 9 of the pulley 4 engages, is subdivided into a tooth-free lower section 15 a and a lower section 15 b with toothing 16.
    At the end of the shaft portion 8 of the shaft flange 3, which is opposite to the flange portion 6, which cooperates with the hub portion 9 of the pulley 4 section 15 of the shaft portion 8, the toothing 16-bearing base portion 15 b, with a corresponding toothing 17 of the hub portion 9 of the pulley 4 cooperates for torque transmission. Via a clamping element 18 which cooperates with a clamping disk 19 and a screw 20, the hub portion 9 of the belt pulley 4 pushed onto the shaft portion 8 of the shaft flange 3 is fixed.
    According to the invention, the shaft portion 8 is at least continuous in and through between those sections 11, 13 and the tooth-free lower portion 15a of the section 15, which cooperate with the bearing 14 and the or each shaft seal 12 and the hub portion 9 of the pulley, surface hardened.
    Preferably, the shaft portion 8 is surface hardened at least continuously in and through between those portions 11, 13 and 15 which cooperate with the bearing 14, the shaft seals 12 and the hub portion 9 of the pulley 4.
    In particular, the shaft portion 8 is further surface hardened in the portion 22, on which the clamping element 18 engages for the hub portion 9, and / or in the transition region to the flange portion 7.
    In the embodiment of Fig. 2 illustrates a dashed line that portion 21 of the shaft portion 8 of the shaft flange 3 according to the invention, in which the same is continuously hardened surface hardened. Thus, FIG. 2 shows that this region 21 begins immediately adjacent to the flange section 6 and projects as far as that part section 22 adjacent to the free end of the shaft section 8 on which the clamping element 18 comes to rest. The surface hardening in this region 21 is continuous, that is, uninterrupted in the axial direction and circumferential direction of the shaft section 8.
    The shaft section 3 is surface-hardened such that it has on its surface a Rockwell hardness between 50 HRC and 60 HRC, in particular between 52 HRC and 58 HRC. Starting from the surface, the hardness of the surface hardened portion 21 of the shaft portion 3 decreases such that the shaft portion 3 has a Rockwell hardness of 40 HRC in the surface hardened portion 21 at a depth of between 10 mm and 14 mm from the surface , Such a shaft section 3 has a tensile strength of at least 1800 N / mm 2 up to 2200 N / mm 2 in the area of the surface. In the depth between 10 mm and 14 mm, the tensile strength is still in about 1300 N / mm2.
    Such a shaft flange is heavy duty. The service life of shaft flanges can be increased hereby.
    It should be noted that the output-side shaft flange 2 may be formed in an analogous manner.
    The surface hardening of the shaft section 3 is carried out inductively. In inductive surface hardening, the workpiece is exposed to a changing magnetic field. As a result, the workpiece heats up on the surface up to the red glow. The layer depth of the surface hardening depends on the frequency of the alternating magnetic field, the higher the frequency, the lower the layer depth that is heated. Subsequently, the workpiece is quenched and cured. Details concerning this are familiar to the person skilled in the art.
    REFERENCE SIGNS LIST 1 Chopper drum 2 Shaft flange 3 Shaft flange 4 Pulley 5 Pulley 6 Flange section 7 Mounting flange 8 Shaft section 9 Hub section 10 Screw 11 Section 12 Shaft seal 13 Section 14 Bearing 15 Partial section 15a Lower section 15b Lower section 16 Gearing 17 Gearing 18 Clamping element 19 Clamping plate 20 Screw 21 Section 22 Partial section
    权利要求:
    Claims (7)
    [1]
    1. shaft flange of an agricultural harvesting machine, in particular a forage harvester, which has a flange section (6) for fastening a driven assembly (1) of the harvesting machine, in particular a chopper drum of the forage harvester, and a shaft section (8) for connecting a pulley, 11) of the shaft portion (8) having at least one shaft seal (12), a portion (13) of the shaft portion (8) with a bearing (14) and a portion (15) of the shaft portion (8) with a hub portion (9) of the pulley and wherein the portion (15) of the shaft portion (8) which cooperates with the hub portion (9) of the pulley, a toothed portion lower portion (15 a) and a lower portion (15 b) with toothing (16), characterized in that the Shaft section (8) at least continuously in and through between those sections (11, 13) and the toothing free base portion (15a) of the subsection (15) cooperating with the bearing (14) and the or each shaft seal (12) and the hub portion (9) of the pulley is surface hardened.
    [2]
    2. Shaft flange according to claim 1, characterized in that the shaft portion (8) at least continuously in and through between those sections (11, 13, 15) with the bearing (14) and the or each shaft seal (12) and the hub portion (9) of the pulley cooperate, surface hardened.
    [3]
    3. shaft flange according to claim 2, characterized in that the shaft portion (8) further in a partial section (22) on which a clamping element (18) for the hub portion (9) engages, is surface hardened.
    [4]
    4. shaft flange according to claim 2 or 3, characterized in that the shaft portion (8) is further surface hardened in a transition region to the flange portion (6).
    [5]
    5. shaft flange according to one of claims 1 to 4, characterized in that the shaft portion (8), starting from a transition region to the flange portion (6) to a flange portion (6) opposite end, to which a clamping element (18) for the hub portion (9) attacks, is continuously surface hardened.
    [6]
    6. shaft flange according to one of claims 1 to 5, characterized in that the shaft portion (8) in the surface hardened area on the surface has a Rockwell hardness between 50 HRC and 60 HRC.
    [7]
    7. Shaft flange according to claim 6, characterized in that starting from the surface, the hardness of the surface hardened portion of the shaft portion (8) decreases such that the shaft portion (8) in the surface hardened area at a depth between 10 mm and 14 mm from the Surface has a Rockwell hardness of 40 HRC.
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    同族专利:
    公开号 | 公开日
    DE102014108007A1|2015-12-17|
    BE1022973A1|2016-10-25|
    DE102014108007B4|2016-04-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0153196A2|1984-02-20|1985-08-28|Kanzaki Kokyukoki Mfg. Co., Ltd.|Transmission system for motor vehicles having pto-shafts|
    WO2013018868A1|2011-08-04|2013-02-07|Ntn株式会社|Wheel bearing device|
    WO2013092107A1|2011-12-19|2013-06-27|Agco International Gmbh|Crop processing roller assembly|
    US20140150393A1|2012-11-30|2014-06-05|Claas Saulgau Gmbh|Knife carrier for a chopper drum and chopper drum for a forage harvester|
    DE4302726C2|1992-02-11|2002-02-07|Volkswagen Ag|Toothed shaft connection and method for producing a toothed shaft connection|
    US8128504B2|2006-06-16|2012-03-06|Ntn Corporation|Constant velocity universal joint|
    WO2008088007A1|2007-01-17|2008-07-24|Ntn Corporation|Constant velocity universal joint|
    DE102007022077A1|2007-05-11|2009-01-08|Deere & Company, Moline|Gearbox arrangement for self propelled harvesting machine, has belt pulley, which is connected with internal gear and belt pulley is cylindrical and has cavity, in which planetary gear is arranged|
    JP5202887B2|2007-06-29|2013-06-05|Ｎｔｎ株式会社|Steering joint|CN107960218B|2018-01-30|2019-08-27|临泽县新泽牧草业有限责任公司|A kind of low greenfeed cutter device of doing over again|
    DE102019201353A1|2019-02-01|2020-08-06|Horsch Maschinen Gmbh|Storage unit and agricultural machine with such a storage unit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014108007.6|2014-06-06|
    DE102014108007.6A|DE102014108007B4|2014-06-06|2014-06-06|Shaft flange of an agricultural harvester|
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