• 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 rear axle arrangement for a self-propelled harvesting machine (10) comprises an axle body (56), a trailing arm (58) extending in the forward direction, at the front end of which the axle body (56) is pivotably articulated about a pendulum axle (64) extending in the forward direction (V) is and which is connected at its rear end about an axis (62) extending horizontally and transversely to the forward direction to a frame (12) of the harvesting machine (10), and at least one spring element (60) between the trailing arm (58) and the frame (12) is attached.
    公开号:BE1022328B1
    申请号:E2014/0770
    申请日:2014-10-22
    公开日:2016-03-25
    发明作者:Martin Schäfer；Felix Mergehen
    申请人:Deere & Company；
    IPC主号:
    专利说明:

    Sprung rear axle arrangement of a harvester
    The invention relates to a rear axle assembly for a movable in a forward direction, self-propelled harvester.
    State of the art
    Self-propelled harvesters, such as forage harvesters, combine harvesters or cotton harvesters, are usually equipped with powered front wheels and steerable rear wheels. The front wheels are mounted on the frame of the harvester either rigidly or hydraulically adjustable in height (see WO 93/05640 A1 or DE 199 00 212 A1), while the rear wheels are usually mounted on a rigid axle, which in turn about a horizontally and in the forward direction oriented pendulum axle is pivotally suspended from the frame of the harvester (see for example DD 104 902 A5). The steering angle of the rear wheels is defined by means of an actuator and a steering linkage.
    In order to improve the driving behavior, EP 11 51 656 A2 proposes, in the case of a forage harvester, to oscillate the rear axle in a pendulum manner on a transverse rocker extending transversely to the forward direction. The transverse rocker is in turn hinged to one side of the longitudinal center plane of the forage harvester pivotally mounted on the frame and connected to the other side of the longitudinal center plane with a hydraulic spring arrangement which supports the transverse rocker in the vertical direction. One obtains therefore an asymmetrical structure, which has an unfavorable weight distribution result.
    In general vehicle construction one also finds wheel suspensions with so-called trailing arms, which are suspended at a first end about a horizontally and transversely to the direction of travel axis pivotally. At the trailing arm a rigid axle is suspended pendulum about an axis extending in the direction of travel and resiliently supported on the frame (DE 34 33 312 A1). The transverse pivot axis is located at the rear of the steerable front wheels, as well as in DE 195 28 517 A1. In sprung rear axles, the pivot axis is usually in front of the
    Rear wheels, i. the spring arrangement of the front wheels is reversed, cf. DE 33 33 706 C2, or the suspension front and rear is similar, with the pivot axes of the trailing arm is arranged in front of the wheels (US 4 063 361 A1). Accordingly, starting from the mentioned prior art, the trailing arm would be articulated in front of the rear wheels on the frame and the suspension would be provided in the region of the rear axle or behind it. In harvesting machines, however, the space in front of the rear axle is usually already covered by other components.
    Object of the invention
    The object underlying the invention is seen to provide a sprung rear axle assembly for a self-propelled harvester, in which the mentioned disadvantages are not present or to a lesser extent. solution
    This object is achieved by the teaching of claim 1, wherein in the other claims features are listed, which further develop the solution in an advantageous manner.
    A rear axle assembly for a forward-traveling, self-propelled harvester includes a longitudinally extending transversely to the forward direction and in a rest position to which steerable wheels are attachable or attached, a forwardly extending trailing arm, at the front end of the axle around a in Forward direction extending pendulum axis is pivotally articulated and which is connectable or connected at its rear end about a horizontally and transversely extending to the forward axis with a frame of the harvester, and at least one spring element, which is attachable or attached between the trailing arm and the frame.
    The axle of the rear axle carrying the steerable rear wheels is thus articulated to a trailing arm pivotally about a pendulum axle extending in the forward direction, which in turn extends rearwardly of the rear axle on the frame of the harvester around a horizontally and transversely to the forward direction of the harvester
    Axis is articulated and is supported by a spring element on the frame. The resilient support of the rear wheels thus takes place backwards and above the axle body, i. in places where installation of the required elements is possible without problems.
    In a preferred embodiment, the trailing arm comprises two longitudinal struts spaced apart in the transverse direction. The longitudinal strut can be interconnected by cross struts. Between the cross braces connected to the axle body holding element can be positioned and articulated by the pendulum axis to the crossbars, resulting in a compact design.
    Preferably, an upwardly extending spring element is articulated to the longitudinal struts above the axle body. The spring elements may be articulated with their second ends to a bracket which is fastened to longitudinal members of the frame of the harvester. Similarly, the rear ends of the longitudinal struts can be articulated to a cross member, which is fastened to the longitudinal members of the frame of the harvester.
    The spring element preferably comprises a double-acting hydraulic cylinder whose two chambers are each connected to a pressure accumulator. Furthermore, the hydraulic cylinder can be connected to an automatic level control.
    Working Example
    With reference to the figures, an embodiment of the invention will be explained. Show it:
    Fig. 1 is a schematic side view of a self-propelled harvester in the form of a forage harvester, and
    FIG. 2 is a perspective view of the rear axle assembly of the harvesting machine of FIG. 1. FIG.
    1 shows a harvester 10 in the manner of a self-propelled forage harvester is shown in a schematic side view. The harvester 10 builds on a frame 12 carried by front driven wheels 14 and steerable rear wheels 16 and moved in crop mode in a forward direction V across a field. The operation of the harvesting machine 10 is carried out by a driver's cab 18, from which a header 20 in the form of a pickup is visible. By means of the header 20 picked up from the ground crop, z. As grass or the like is fed via a feed conveyor 22 with Vorpresswalzen, which are arranged within a feed housing 24 on the front side of the forage harvester 10, arranged below the driver's cab 18 chopper 26 in the form of a chopper drum, which chops it into small pieces and it Releases conveyor 28. The drive of the chopper 26 and the conveyor 28 is carried out by an internal combustion engine, not shown, via a driven pulley 48, a belt 50 and pulleys 52, 54. The estate leaves the harvester 10 to a transporting vehicle traveling alongside about a rotatable about an approximately vertical axis and inclination adjustable discharge chute 30. In the following, directional terms, such as side, bottom and top, refer to the forward direction V of the harvester 10, which extends to the right in FIG.
    The rear wheels 16 are attached to a rigid axle beam 56 which is in the normal rest position (i.e., when the harvester 10 is in a horizontal, flat position)
    Underground stands) in a horizontal, oriented transversely to the forward direction V.
    Alignment is located. The axle body 56 is articulated about a forward direction V extending and in the rest position mentioned horizontal pendulum axis 64 at the front end of a trailing arm 58. The trailing arm 58 is in turn with. its rear end about a (in said rest position) horizontally and transversely to the forward direction axis 62 hinged to the frame 12. The
    Storage about the axis 62 can be done by maintenance-free plain bearing bushes or
    Ball or roller bearings. A spring element 60 is hinged at its lower end to the trailing arm 58 and its upper end to the frame 12, each about a horizontal and transversely to the forward direction V extending axis. The arrangement for suspension of the rear axle is therefore located above and to the rear of the
    Achskörpers 56 and thus at a point where they do not conflict with others
    Components of the harvester 10, as arranged in front of the rear axle
    Fuel tank (not shown) is. "
    Figure 2 shows the sprung rear axle assembly in more detail. The axle body 56 is a known per se assembly and consists of screwed housing parts 68, 70, in the interior of which a drive shaft for driving the rear wheels 16 is provided, which is driven by means of a Hydrostaten 66. Hubs 72 are at both outer ends of the axle 56 on the output side of gears 74 and serve to attach the wheels 16. The steering angle of the gear 74 and the hubs 72 and thus the wheels 16 is determined by a steering linkage 76 which is adjustable by means of a steering actuator 78 is.
    At the top of the axle 56 an upwardly extending support member 80 is centrally arranged, which is freely pivotally mounted by a pendulum bearing about the pendulum axis 64 with a rear of the support member 80, rear cross member 82 and arranged in front of the support member 80, front cross member 84 is connected. The cross struts extend transversely to the forward direction and horizontally and are in turn connected at their two ends with a respective longitudinal strut 86, 88 of the trailing arm 58. The longitudinal struts 86, 88 are connected at their rearward ends to the horizontal and transverse forwardly extending axis 62, respectively, with a cross member 90 extending horizontally and transversely. The cross member 90 is end equipped with flanges 92, which are each connected to a longitudinal member 94 of the frame 12. Rearward of the front cross brace 84, the lower end of each of a spring element 60 is hinged to the longitudinal struts 86, 88, the upper ends of which are articulated to a holder 96 designed as a frame construction. The articulation can be effected in each case by a ball joint, as shown in FIG. 2, or by means of a rotary joint with a horizontal axis of rotation oriented transversely to the forward direction. The bracket 96 includes a lower strut 98 and an upper strut 100 connected at their lateral ends by vertical struts 102. The outer vertical struts 102 are also connected at their lower ends to the longitudinal members 94 of the frame 12. ,
    The spring elements 60 are double-acting hydraulic cylinders, whose two chambers are each connected to a pressure accumulator 104, 106. Reference is made to the disclosure of DE 101 07 644 B4. Furthermore, the angle of rotation of one of the longitudinal struts 94 about the axis 62 by means of a sensor (not shown) detected and by a controller 108 to an automatic control of the chambers of the
    Hydraulic cylinders are used in the sense of maintaining a predetermined orientation of the mentioned rotation angle.
    In the illustrated Hinterachsanordnung a conventional axle beam 56 is used, which can also be grown on a harvester 10 without sprung rear axle. In this case, eliminates the trailing arm 58 and the spring elements 60 of Figure 2 and the support member 80 (identical to the embodiment of Figure 1 and 2) axle body 56 (instead of the trailing arm 58) by the pendulum axis 64 to another cross member (not shown), which in turn is directly and rigidly coupled to the longitudinal members 94.
    权利要求:
    Claims (9)
    [1]
    A self-propelled harvester (10), in particular a forage harvester, movable in a forward direction (V) and comprising a frame (12) to which a rear axle assembly is attached, which is transverse to the forward direction (V) and horizontal in a rest position extending axle beam (56) to which steerable wheels (16) are attachable or mounted, a forwardly extending trailing arm (58) at the front end of which the axle beam (56) extends about a pendulum axle (64) extending in the forward direction (V). pivotably articulated and connected at its rear end to the frame about a horizontal and transversely extending forward axis (62), and at least one spring element (60) between the trailing arm (58) and the frame (12) is appropriate.
    [2]
    The self-propelled harvester (10) of claim 1, wherein said trailing arm (58) comprises two transversely spaced apart longitudinal struts (86, 88).
    [3]
    3. Self-propelled harvesting machine (10) according to claim 2, wherein the longitudinal struts (86, 88) are interconnected by transverse struts (82, 84).
    [4]
    4. Self-propelled harvesting machine (10) according to claim 3, wherein between the transverse struts (82, 84) with the Achskörper (56) connected holding element (80) and articulated by the pendulum axis (64) to the cross-struts (82, 84) is articulated ,
    [5]
    5. A self-propelled harvesting machine (10) according to any one of claims 2 to 4, wherein on the longitudinal struts (86, 88) above the axle body (56) in each case an upwardly extending spring element (60) is articulated, and wherein the spring elements (60). are articulated with their second ends to a holder (96) which is fastened or secured to longitudinal members (94) of the frame of the harvester.
    [6]
    A self-propelled harvester (10) according to any one of claims 2 to 5, wherein the rearward ends of the longitudinal struts (86, 88) are hinged to a cross member (90) fixed to longitudinal members (94) of the frame (12) of the harvester (10 ) fastened or attached.
    [7]
    7. Self-propelled harvesting machine (10) according to one of the preceding claims, wherein the spring element (60) comprises a double-acting hydraulic cylinder, whose two chambers are each connected to a pressure accumulator (104,106).
    [8]
    8. A self-propelled harvesting machine (10) according to claim 5, wherein the hydraulic cylinder is connected to an automatic level control.
    [9]
    9. Self-propelled harvesting machine (10) according to one of the preceding claims, wherein on the frame (12) instead of the rear axle optionally a holding element (80) of an axle body (56) via a pendulum axis (64) on one rigidly connected to the frame (12) Cross strut is attachable.
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    同族专利:
    公开号 | 公开日
    DE102013222254A1|2015-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE69913600T2|1998-04-21|2004-09-30|Agco Gmbh & Co.Ohg|Commercial vehicle with a rigid axle|
    EP1151656A2|2000-05-04|2001-11-07|Maschinenfabrik Bernard Krone GmbH|Self-propelled harvester especially forage harvester|
    DE10107644A1|2001-02-15|2002-09-05|Freudenberg Carl Kg|Hydropneumatic suspension for vehicles with heavily changing axle loads|
    US20100168959A1|2008-12-26|2010-07-01|Kubota Corporation|Hydraulic Suspension System for Work Vehicle|
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    EP0604500B1|1991-09-21|1996-06-26|Deere & Company|Vehicle, especially agricultural appliance, with a swivelling device|
    DE19528517A1|1995-08-03|1997-02-06|Same Spa|Axle of an agricultural or construction vehicle|
    DE19900212A1|1999-01-07|2000-08-10|Same Deutz Fahr Spa|Drive axle for vehicles|JP6834837B2|2017-08-03|2021-02-24|井関農機株式会社|Riding lawn mower|
    IT201900002241A1|2019-02-15|2020-08-15|Comep S R L|DEVICE FOR A SELF-LEVELING FRAME OF AN AGRICULTURAL MACHINE|
    DE102019215142A1|2019-10-01|2021-04-01|Deere & Company|Forage harvester with discharge spout supported separately from the transition housing|
    DE102019215143A1|2019-10-01|2021-04-01|Deere & Company|Forage harvester with two-part transition housing|
    DE102019215146A1|2019-10-01|2021-04-01|Deere & Company|Forage harvester with a supporting frame|
    DE102019215598A1|2019-10-11|2021-04-15|Deere & Company|Forage harvester with swiveling transition housing|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE1020132222548|2013-10-31|
    DE201310222254|DE102013222254A1|2013-10-31|2013-10-31|Sprung rear axle arrangement of a harvester|
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