• 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 self-propelled agricultural harvesting machine comprises a frame which rests on means engaged with the ground and is movable in a forward direction thanks to these, working members (26,28) for transport and / or processing a crop, which can be driven via a drive belt (50) which can be driven by a pulley (48), a first internal combustion engine (32) with a first crankshaft (36) and a second internal combustion engine (34) with a second crankshaft (38). The pulley (48) is or can be in drive connection as desired with one of the internal combustion engines (32 at 34) or the two internal combustion engines (32 at 34). The first crankshaft (34) is or can be brought into drive connection with the pulley (48) via a first belt drive (46) and the second crankshaft (38) is or can be brought into drive connection with the pulley (48) via a second belt drive (84).
    公开号:BE1019096A3
    申请号:E2009/0454
    申请日:2009-07-28
    公开日:2012-03-06
    发明作者:Matthew Dold；Rainer Schofer；Klaus-Josef Vogelsang；Helmut Weis
    申请人:Deere & Co；
    IPC主号:
    专利说明:

    DESCRIPTION
    The invention relates to a self-propelled agricultural harvesting machine, comprising: a frame which is supported on means engaged with the ground and is movable in a forward direction thanks to these, working members for transporting and / or processing a crop, which can be driven via a drive belt which can be driven by a pulley with a horizontal axis of rotation and oriented transversely to the forward direction, a first internal combustion relying on the frame, with a first crankshaft extending horizontally and transversely to the forward direction, and a second internal combustion engine resting on the frame, with a second crankshaft extending horizontally and transversely to the forward direction, the pulley being or may be in drive connection with one of the internal combustion engines or both .
    State of the art
    In the recent past, self-propelled agricultural harvesting machines are equipped with more and more powerful internal combustion engines which, for forage harvesters, can currently supply up to more than 800 kW. Because of relatively small engine production series of such power, such engines are relatively expensive and generally more expensive than two internal combustion engines each having half the power. Furthermore, the total power of the engine is not always required, - it is not necessary for example for transport on a road or for grass harvesting - which leads to a lower efficiency of the engine than for operating at full load, which is why it has been proposed to equip a self-propelled harvesting machine with two internal combustion engines, one of which is switchable in addition to the other internal combustion engine in order to control greater power.
    According to DE 102 004 046 467 A1, the crankshafts of the two internal combustion engines are oriented transversely to the forward direction and horizontally, an internal combustion engine being positioned in front of the other internal combustion engine in the forward direction . A direct gear reducer establishes a link between the two internal combustion engines and the main driveline of the harvesting machine. Between the crankshaft of the rear internal combustion engine and the direct gear reducer is arranged a disconnectable coupling so as to drive the harvesting machine also with only the front internal combustion engine, without having to rotate at the same time the internal combustion engine back. A main driveline of the harvesting machine is driven by a drive belt which rotates about a pulley directly connected to the crankshaft of the front internal combustion engine. The front internal combustion engine drives via the direct-drive gearbox also hydraulic pumps for the movement mechanism and the driving of the feed rollers and the pre-harvest attachment.
    The two internal combustion engines are mounted with the direct-drive gearbox on an auxiliary frame, so that they form a compact, pre-assembled subassembly. This compact subassembly offers advantages during the final assembly of the harvesting machine, since the number of elements to be mounted along the mounting strip remains low, but the disadvantage that the various internal combustion engines are difficult to access. for maintenance. In addition, vibrations can occur during operation in one of the internal combustion engines, which are transmitted to the other internal combustion engine via the auxiliary frame and the direct-train gearbox and lead to undesirable vibrations which increase. finally by resonance due to the mutual interference of the internal combustion engines which takes place via the auxiliary frame and the direct-train gearbox. As a disadvantage of this arrangement, it must further be considered that the front internal combustion engine must always be in use when the harvesting machine is harvesting or rolling, while the rear internal combustion engine is only required for load peaks. and therefore less operating hours than the internal combustion engine before, so that the latter undergoes a substantially higher wear.
    DE 102 006 004 143 A1 describes another self-propelled harvesting machine in the form of a forage harvester which also has two internal combustion engines. In a first embodiment, a drive belt driving the chopper drum and a hoist member surrounds two pulleys which are arranged coaxially with the respective crankshafts of the internal combustion engines and can be connected to the crankshafts by couplings. Couplings can be used to drive either or both of the internal combustion engines and to connect them to the drive belt. However, this construction requires a very small radius of curvature of the drive belt around the pulley of the front internal combustion engine, which causes a great wear of the drive belt. For a second embodiment, the drive belt then surrounds only a pulley connected to the crankshaft of the front internal combustion engine, while the rear internal combustion engine is in driving connection with the crankshaft of the internal combustion engine. before via a second belt drive. A displacement mechanism is driven by a third belt drive by the crankshaft of the rear internal combustion engine. For this embodiment, the internal combustion engines can only be driven together, since there are no detachable couplings between the belt drives and the crankshafts.
    Purpose of the invention
    The object of the invention is to provide a self-propelled agricultural harvesting machine whose driving concept does not present or only to a lesser extent the aforementioned disadvantages of the state of the art.
    Solution
    This object is achieved according to the invention by the teaching of claim 1, the dependent claims having features which improve the solution advantageously.
    A self-propelled harvesting machine comprises a frame which is grounded by ground engaging means, generally wheels or crawler undercarriages, and can be moved in a forward direction at 1 help of the means mentioned. The harvesting machine further has working members for transporting and / or treating the crop, in the case of a forage harvester, for example a chopper drum, a graeder or a grain treatment device, and the case of a combine harvester such as an inclined conveyor or a drummer. The driving of the working members is via a drive belt which is driven on the input side via a pulley with an axis of rotation extending horizontally and transversely to the forward direction, which is or can be fed to its side. in a choice drive connection via a first belt drive with a first crankshaft of a first internal combustion engine and / or via a second belt drive with a second crankshaft of a second internal combustion engine. The internal combustion engines are attached to the frame and their crankshafts extend horizontally and transversely to the forward direction. It is therefore proposed to assign each of the internal combustion engines a belt drive which connects it directly or indirectly, in particular via the other belt drive, to the pulley of the drive belt used to drive the internal combustion engines. working bodies.
    In this way, the internal combustion engines are mechanically decoupled from each other, particularly from the point of view of vibrations, by the belt drives, so that there must be no fear of resonating vibrations. .
    In addition, the two belt drives allow a non-problematic coupling of couplings in order to be able to select for small power demands which internal combustion engines are driven, in order to equalize as much as possible the hours of operation and the degree of wear of the two internal combustion engines. The couplings may be arranged between the respective crankshaft and belt drive, although it is also possible to provide them on the output side of the corresponding belt drive.
    For road traffic, the working elements of the harvesting machine should normally be deactivated. On the other hand, other drives of the harvesting machine must, however, also be driven during running, such as a displacement mechanism or an air conditioning system, so that at least one internal combustion engine must be driven. . The decommissioning of the working members is therefore preferably done with the aid of a third coupling, which is provided upstream of the pulley, that is to say between the pulley and the second, and the case the first belt drive (if the first belt drive drives the pulley directly, ie not via the second belt drive).
    Embodiments With the aid of the figures, two exemplary embodiments of the invention are explained. The drawings show:
    FIG. 1, a schematic side view of a first embodiment of a self-propelled harvesting machine in the form of a forage harvester, FIG. 2, a schematic top view of the drive system of the machine. Figure 3 is a schematic side view of a second embodiment of a self-propelled harvesting machine in the form of a forage harvester, and Figure 4 is a schematic top view of a harvesting machine. the drive system of the harvesting machine of FIG.
    First Embodiment FIG. 1 is a diagrammatic side view of a harvesting machine 10 in the form of a self-propelled forage harvester. The harvesting machine 10 stands on a frame 12, which is supported by front wheels 14 and rear guide wheels 16. The control of the harvesting machine 10 is from a driver's cab 18, from which we can see a pre-harvest attachment 20 in the form of a collector, which could also be replaced by a pre-harvesting attachment for maize harvesting. Fodder harvested from the soil with the aid of the pre-harvest attachment 20, for example grass or the like, is conveyed via an input conveyor 22 with pre-pressing rolls, which are arranged inside an inlet housing 24 at the front of the forage harvester 10, at a chopper 26 in the form of a chopper drum located beneath the driver's cab 18, which shreds it into small pieces and It transmits it to a transport device 28. The chopping device 26 and the transport device 28 are therefore working members for transporting and processing a crop. The crop leaves the harvesting machine 10 to a transport vehicle running next to it via an extraction shaft 30 rotating about an almost vertical axis and adjustable in inclination. In the following, the direction indications, such as laterally, at the bottom and at the top, relate to the forward direction V of the harvesting machine 10, which extends to the right in FIG.
    FIG. 2 shows a view from above of the arrangement of the drive of the harvesting machine 10. In the rear zone of the harvesting machine 10 there are two internal combustion engines 32, 34 which are connected separately with each other. the other to beams and / or cross members of the frame 12. The internal combustion engines 32, 34 are preferably made as diesel engines and generally comprise oil and cooling circuits as well as separate starters. Their power is preferably the same, although it may also be different. The first internal combustion engine 32, at the front, and its crankshaft 36 (the first) extend transversely to the forward direction V of the harvesting machine 10. The second internal combustion engine 34, at the rear, and its crankshaft 38 (the second) also extend transversely to the forward direction V of the harvesting machine 10.
    The first crankshaft is rigidly connected to an output shaft 40, which is in turn coupled to the input side of a first coupling 42. The output side of the first coupling 42 is rigidly connected to a drive pulley 44 of a first belt drive 46, whose receiving pulley 56 is arranged coaxially with the output shaft 58 of the second internal combustion engine 34. The receiving pulley 56 is however not rigidly connected to the output shaft 58, but with a hollow shaft 60 coaxial with the output shaft 58 and surrounding it. Around the drive pulley 44 and the receiving pulley 56 of the first belt drive 46 extends a first drive belt 72, the lower return strand of which is tensioned by a tension roller 80 under tension upwardly. using a spring and / or a hydraulic cylinder (not shown). The first coupling 42, the drive pulley 44 and the output shaft 40 are arranged coaxially with each other and their axes extend horizontally and transversely to the forward direction. The driving pulley 44 and the receiving pulley 56 generally have identical diameters, as shown in FIG. 2, although it is also conceivable to give them different diameters in order to obtain different speeds of rotation of the motors. internal combustion 32, 34, which can contribute to a reduction of vibration generated and / or adaptation of rotation speeds of differently sized internal combustion engines. The first belt drive 46 therefore extends from the first internal combustion engine 32 rearwards to the second internal combustion engine 34.
    The output shaft 58 of the second internal combustion engine 34 extends through the receiving pulley 56 of the first belt drive 46 and through a drive pulley 58 of a second belt drive 84 to the inlet side. a second coupling 86 disposed outside the drive pulley 82, whose output side is in turn connected to the hollow shaft 60, which extends coaxially through the receiving pulley 56 of the first drive by belt 46 and through the drive pulley 82 of the second belt drive 84 and is rotatably secured to the receiving pulley 56 and the drive pulley 82. The output shaft 58 is rotatably with respect to the hollow shaft 60 and can only be rotatably connected to the hollow shaft 60 via the second coupling 86.
    The second belt drive 84 comprises at its front end a receiver pulley 88 which is rotatably connected to a hollow shaft 90 coaxial with the receiver pulley 88, which is in turn rotatably connected to the inlet side of the housing. A third coupling 92. The second belt drive 84 further has a second drive belt 96, the upper return strand of which is tensioned by a tension roller 102 which is pre-tensioned downwards by means of a spring. and / or a hydraulic cylinder (not shown). The output side of the third coupling 92 is connected to a transverse shaft 94 which extends inside the hollow shaft 90 and through the receiving pulley 88. The transverse shaft 94 is rotatably coupled with a pulley 48. The pulley 48 is surrounded by a third drive belt 50 which also surrounds a pulley 52 for driving the transport device 28 and a pulley 54 for driving the chopping device 26. The third drive belt 50 may be tensioned in its upper return strand between pulleys 48 and 52 by an additional tensioning roller (not shown) assigned to it. The driving of a grain treatment device 104 disposed between the chopping device 26 and the transport device 28 is preferably via an additional belt drive (not shown) by the shaft 106 of the pulley 52.
    The hollow shaft 60 carries between the receiving pulley 56 of the first belt drive 46 and the casing of the second internal combustion engine 34 a wheel 108 at the periphery which meshes with another toothed wheel 110, which drives via a third gear 112 and a shaft 114 arranged transversely a pumping unit 116 which serves to supply the hydraulic motors for driving the wheels 14, 16 and a reversible motor 62. The shaft 114 is via a fourth coupling 118 also in driving connection with a pump 120 for the hydraulic supply of a hydraulic motor 78 for driving the pre-harvest attachment 20.
    The transverse shaft 94 is via a gear change transmission 94 in driving connection with the reversible motor 62 or a hydraulic pump 66 with volume absorbed per turn preferably adjustable. The shift transmission 64 is connected via an externally controlled actuator 68, which can in particular be operated hydraulically, pneumatically or electromagnetically, with a drive 70 which also controls an actuator 122 for actuation of the third coupling 92, an actuator 124 for actuating the first coupling 42 and an actuator 126 for actuating the second coupling 86. The hydraulic pump 66 is connected by hydraulic fluid communication to a hydraulic motor 74 which has a volume absorbed per fixed or adjustable tower. and drives via a transmission 76 the pre-pressing rolls of the input conveyor 22. An embodiment of a gearshift transmission 64 is described in more detail in DE 10 2008 002 344 A1, which is published in hereby incorporated by reference.
    Operating mode
    The operating mode of the drive system shown in Figures 1 and 2 is with all this the following. In working operation, the operator can, via a control device 98 located in the driver's cab 18, communicate to the control 70 if one of the two internal combustion engines 32, 34 is needed or both. This selection can also be done in harvesting operation using a power measurement which is performed using a torque sensor inside the kinematic chain of the hashing device 26 or the control commands. The engine of the internal combustion engines 32, 34 gives the control 70 corresponding information or the type of pre-harvest attachment 20 is detected or the harvest rate is measured. For a sufficiently low power requirement, less than the rated power of one of the internal combustion engines 32, 34, a single combustion engine 32 or 34 is respectively put into operation, while the other is stopped. In doing so, the internal combustion engine which has consumed the smallest amount of fuel or has the lowest degree of fouling in the engine oil is preferably selected automatically, which can be determined by means of a sensor. appropriate (see DE 10 225 716 A1). The selection of the internal combustion engine can also be made using the criteria mentioned in DE 102 006 004 143 A1. If the capacities of the two internal combustion engines 32, 34 are different, it is also taken into account when the selection of the internal combustion engine 32 or 34 of the power to be supplied, so that for a power requirement that is greater than the power of the internal combustion engine 32 or 34 the lowest and lower than the power of the combustion engine internal 32 or 34 the most powerful, the most powerful internal combustion engine 32 or 34 is selected. Furthermore, for a road trip that can be selected by means of a corresponding entry in the command 70 with the control device 98, a single internal combustion engine 32 or 34 is automatically put into service.
    If only the first internal combustion engine 32 is to be put into operation, the control 70 gives the actuator 124 the order to close the first coupling 42 and the actuator 126 to open the second coupling 86. Following this the first internal combustion engine 32 in operation drives the hollow shaft 90 via the first belt drive 46 and the second belt drive 84.
    If, similarly, only the second internal combustion engine 34 is to be put into operation, the control 70 gives the actuator 124 the order to open the first coupling 42 and the actuator 126 to close the second coupling 86. Following this, the second internal combustion engine 34 in operation drives the hollow shaft 90 via the second belt drive 84. The first belt drive 46 then turns empty.
    In road traffic operation, the control 70 gives the actuator 122 the order to open the third coupling 92 and an actuator 128 to open the coupling 118. Following this, during road traffic, neither the pulley 48 for the drive belt 50 nor the transverse shaft 94 nor the pump 120 are driven. The two belt drives 46, 84, however, rotate and the pump unit 116 is driven, so that all the elements necessary for road traffic are driven, while the working members necessary for the harvesting operation are stopped. .
    In harvesting operation, the control 70 causes the actuator 122 to close the third coupling 92 and the coupling 118, so that the pump 120 and thus the hydraulic motor 78 for driving the front attachment 20, the pulley 48 and thus the transport device 28 and the chopper 26 and the transverse shaft 94 are also set in motion. In normal harvesting operation, the control 70 instructs the actuator 64 to bring the shift transmission 64 into a position in which the hydraulic pump 66 and thus the hydraulic motor 74 are driven to drive the conveyor. In the event of a crop jam, the hydraulic motor 74 may be reversed, in that its oscillating disk is displaced accordingly. In order to sharpen the knives of the chopper 26 in a rearward rotation with a sharpening device 100, the control 70 can, when the coupling 92 is separated, cause the gearshift transmission 64 in a position in which the reversible motor 62 is in driving connection with the transverse shaft 94 and drives the latter in the opposite direction to normal harvesting operation.
    If only the first internal combustion engine 32 is running and the second internal combustion engine 34 is now also required, the control 70 gives the order to start it with its starter, to bring it to the rotational speed of the first internal combustion engine 32 by means of its motor control and closing the second coupling 86. Conversely, if only the second internal combustion engine 34 is running and the first one is now also required of the first internal combustion engine 32, the command 70 gives the order to start the latter with the aid of its starter, to bring it to the speed of rotation of the second internal combustion engine 34 with the aid of its engine control and closing the first coupling 42.
    Similarly, in the event of a decrease in the power demands, the control 70 may order the first or second internal combustion engine 32 or 34 to be disabled with the application of the criteria mentioned above, in that the first coupling 42 is forced to open by the actuator 124 or the second coupling 86 by the actuator 124, and then the engine control of the engine to be stopped is brought to cut off the fuel supply.
    The drive system shown thus allows trouble-free selection of one or both of the two internal combustion engines 32 or 34. The two belt drives 46, 84 decouple the internal combustion engines 32 and 34 and prevent undesirable resonance transmission or enhancement of mechanical vibrations.
    Second embodiment
    Figures 3 and 4 show a side view and a top view of a second embodiment of a harvesting machine 10 and a corresponding kinematic chain. The elements identical to those of the first embodiment bear the same reference numerals. For the second embodiment also, the first internal combustion engine 32 can be drivingly connected to the pulley 48 via the first belt drive 46, while the second internal combustion engine 34 can be connected to the first one. The essential difference lies in the fact that the first belt drive 46 directly drives the pulley 48, ie not via the second belt drive 84. as in the first embodiment.
    As a result, the two belt drives 46, 84 extend forwardly from the crankshafts 36, 38 of the internal combustion engines 32, 34 and their receiver pulleys 56 and 88 are coaxially disposed relative to one another. other and the transverse shaft 94 and the pulley 84. The first output shaft 40 is connected via its first coaxial coupling 42 to the drive pulley 44, which is coaxial with it, whose axis of rotation is horizontal and extends transversely to the forward direction. The second output shaft 58 extends through a hollow shaft 130 carrying the drive pulley 82 with rotational locking to the inlet side of the second coupling 86, which is coaxial with it, the output side of which is connected to the hollow shaft 130. On the other side of the pulley 82, facing the casing of the second internal combustion engine 34, the hollow shaft 130 is connected to the toothed wheel 108, which drives the pumping unit 116, in particular for the displacement mechanism, via the gears 110 and 112. The receiving pulley 56 of the first belt drive 46 is preferably of the same size as its drive pulley 44, as the receiving pulley 88 of the second belt drive 84 is the same size as its drive pulley 82, although - as mentioned above - the diameters can also be respectively different, in order to allow more or less different speeds of rotation. internal combustion engines 32, 34. The receiving pulleys 56 and 88 are rigidly and coaxially connected to each other by the hollow shaft 60 and with the inlet side of the third coupling 92. The output side of the coupling 92 is connected to the transverse shaft 94, which extends inside the hollow shaft 60 through the receiving pulleys 56, 88 and is rigidly connected to the pulley 48 and to a coaxial gear 132. The gear 132 meshes with a gear 134 which serves to drive the gear shift transmission 64 and with a gear wheel 136 which serves to drive the pump 120.
    Since, when the second internal combustion engine 34 is out of service, the second belt drive 84 must not carry the power from the rear to the front, but in the opposite direction from the hollow shaft 60 to the pumping unit. 116, the lower or upper strand of the second drive belt 96 can be used for power transmission, while the other strand acts as a vacuum strand. In order to take account of this fact, two tension rollers 102 are assigned to the second belt drive, which are attached to a common support 140 which is freely pivotable about an axis 138 extending horizontally and transversely to the forward direction . The two arms of the support 140 are pre-tensioned with respect to each other by the force of a spring and / or hydraulic cylinder (not shown).
    Operating mode
    The operating mode of the drive system according to the second embodiment corresponds to that of the first embodiment. When the two internal combustion engines 32, 34 are required, the controller 70 instructs the actuators 124 and 126 to close the couplings 42 and 86, so that the hollow shaft 60 is driven. The pumping unit 116 is also driven via the gears 108 to 112. In harvesting operation, the control 70 instructs the actuator 122 to also close the third coupling 92, so that the transport device 28 and the chopper 26 are also driven via the pulley 48 and the drive belt 50. Via the gears 132 to 136 are driven the pump 120 for the hydraulic supply of the hydraulic motor 78 for the drive of the pre-harvest attachment 20 and the hydraulic pump 66 for driving the transmission 76 of the pre-pressing rolls of the input conveyor 22. When the third coupling 92 is open, the gearshift transmission 64 can cause the reversible motor 62 in driving connection with the toothed wheel 134 to rotate the chopper 26 back and sharpen it with the aid of the sharpening device 100.
    If only one of the internal combustion engines 32 or 34 is required, the coupling 42 or 86 of the internal combustion engine 32 or 34 which is not to be driven is opened by the control 70 and the corresponding actuator 124 or 126 is open. and the engine control of the respective internal combustion engine 32 or 34 gives the order to shut off the fuel supply.
    权利要求:
    Claims (10)
    [1]
    1. A self-propelled harvesting machine (10), wherein a frame (12) is supported on ground engaging means (14, 16) and is movable in a forward direction by means of these, working members (26, 28) for transporting and / or processing a crop, which can be driven via a drive belt (50) which can be driven by a pulley (48) with a horizontal axis of rotation and oriented transversely to the forward direction, a first internal combustion engine (32) resting on the frame (12), with a first crankshaft (36) extending horizontally and transversely to the forward direction, and a second internal combustion engine (34) resting on the frame (12), with a second crankshaft (38) extending horizontally and transversely to the forward direction, the pulley (48) being or can be in drive connection with one of the motors with internal combustion (32 or 34) or both internal combustion engines (32 and 34), characterized in that the first crankshaft (34) is or can be brought into driving connection with the pulley (48) via a first belt drive (46) and that the second crankshaft (38) is or can be brought into drive connection with the pulley (48) via a second belt drive (84).
    [2]
    Harvesting machine (10) according to claim 1, characterized in that the first crankshaft (36) is or can be brought into driving connection with the pulley (48) only via the first belt drive (46) or via the first belt drive (46) and the second belt drive (84).
    [3]
    Harvesting machine (10) according to claim 1 or 2, characterized in that a separable first coupling (42) is arranged between the first crankshaft (36) and the first belt drive (46).
    [4]
    Harvesting machine (10) according to one of Claims 1 to 3, characterized in that a separable second coupling (86) is arranged between the second crankshaft (38) and the second belt drive (84). .
    [5]
    5. harvesting machine (10) according to one of claims 1 to 4, characterized in that a third coupling (92) is disposed between the pulley (48) and the J. V · n C Μ M WM Μ Μ X W n A-------------V V V V V------------------------...... The first belt drive (84, 46) is used as the first belt drive.
    [6]
    6. Harvesting machine (10) according to one of claims 1 to 5, characterized in that the pulley (48) is in front of the first crankshaft (36) relative to the forward direction, which is at its turn in front of the second crankshaft (38) with respect to the forward direction.
    [7]
    Harvesting machine (10) according to one of claims 1 to 6, characterized in that the pulley (48) is connected to a transmission, in particular a gear change transmission (64), with which a hydraulic pump (66) can be driven, which is or can be connected by fluid communication with a hydraulic motor (74) for driving an input conveyor (22).
    [8]
    Harvesting machine (10) according to one of claims 1 to 7, characterized in that the second belt drive (84) comprises a drive pulley (82) which is connected via a transmission (108-112). to a pumping unit (116) which serves to supply hydraulic power to a displacement mechanism.
    [9]
    Harvesting machine according to claim 8, characterized in that the drive pulley (82) of the second belt drive (84) is connected via a hollow shaft (60) to the transmission (108-112) for the transmission. driving the pumping unit (116) and in that an output shaft (58) of the second internal combustion engine (34) connected to the second crankshaft (36) extends into the hollow shaft (60).
    [10]
    Harvesting machine according to claim 9, claim 8 referring to the second alternative of claim 2 or claim dependent thereon, characterized in that a receiving pulley (56) of the first belt drive ( 46) is attached to the hollow shaft (60) between the transmission (108-112) for driving the pumping unit (116) and the drive pulley (82) of the second belt drive (84).
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    同族专利:
    公开号 | 公开日
    DE102009028055A1|2010-02-11|
    DE102009028055B4|2020-01-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    GB0101557D0|2001-01-22|2001-03-07|Ford New Holland Nv|Drive mechanism for a front attachment of an agricultural harvesting machine and corresponding front attachment|
    DE10225716A1|2002-06-11|2004-01-08|Conti Temic Microelectronic Gmbh|Determining oil change time point for internal combustion engine involves measuring permittivity of engine oil to determine degree of use, verifying result by measuring its optical transmissivity|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102008040976|2008-08-04|
    DE102008040976|2008-08-04|
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