• 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 control device for controlling a closure device (40) arranged on the underside of a channel (64) of a forage harvester (10) located downstream of a cutterhead (26) is provided with an electronic control device (70) which is operated by a power-operated device for moving the closure device ( 40) is connected. The control device (70) is set up to command automatically in the event of release of a parking brake and / or switching on the operation of the chopper drum (26).
    公开号:BE1025904B1
    申请号:E2018/0084
    申请日:2018-07-24
    公开日:2019-08-12
    发明作者:Jürgen Hofer；Rolf Koch；Patrick Mclawhorn；Dominik Mika；Martin Schäfer
    申请人:Deere & Company；
    IPC主号:
    专利说明:

    Control arrangement for controlling a closure device arranged on the underside of a forage harvester channel arranged downstream of a chopper drum
    description
    The invention relates to a control arrangement for controlling a closure device, which is arranged in particular on the underside of a channel of a forage harvester arranged downstream of a chopper drum, with an electronic control device which is connected to an externally operated actuator, which is arranged to move the closure device between a closed and an open position, and an operator interface which enables a manual entry of a command to open the locking device, as well as a forage harvester equipped with it.
    State of the art
    Forage harvesters are used to plant or their
    Pick up fruit stands from a field and cut them into small pieces. The plants standing in the field are usually cut off from the roots remaining in the ground by means of a suitable harvesting attachment and fed to a feed channel of the forage harvester. Alternatively, the plants can be cut off and swathed in previous steps and picked up by means of a pick-up, or only the fruit stands are separated from the plants and conveyed into the feed channel. In the feed channel, the crop mat picked up by means of the header is pre-compacted by interacting pairs of pre-press rollers which feed the crop mat to a chopper drum, by a number of its circumference (and possibly its width)
    BE2018 / 0084 is distributed on chopping knives. The chopping knives cut the crop into small pieces together with a shear bar. The chopped crop (and in particular corn kernels contained therein) is optionally further chopped by means of a post-processing device, conveyed into a discharge chute by means of a post-accelerator and loaded onto a transport vehicle. The chopped crop is used in particular as feed for livestock or for biogas production.
    In the channel between the chopper drum and the
    Post-accelerators (or the post-processing device inserted into this channel) sometimes produce deposits of crop that must be removed before or after a long interruption in the harvesting operation before the harvesting operation is started again. For this purpose, EP 1 972 191 A1 proposes to open a closure device arranged on the underside of the channel by means of a power-operated actuator upon operator input or automatically when the chopper drum or the drive motor of the forage harvester is switched off or when the chopper drum is reversed or ground or when a sensor on the chopper drum or a subsequent processing unit detects that the torque has been exceeded.
    DE 10 2014 008 068 A1 describes a forage harvester in which an opening and closing of a flap underneath a chopper drum takes place automatically if the pressure conditions within the crop chute leading to the crop indicate a crop jam. Manual opening and closing is also provided.
    task
    While the opening of the closing device is automated, the closing of the closing device in the state of the art according to EP 1 972 191 A1 takes place exclusively upon operator input, for which purpose the operator is provided with information about the
    BE2018 / 0084
    Position of the closure device is displayed. However, it is conceivable that the operator forgets to close the locking device and begins chopping or starts a road or field trip. In the first case, undesired crop losses occur, and in the second case the closure device can be damaged in the event of uneven ground or insufficient ground clearance. In the arrangement according to DE 10 2014 008 068 A1, the flap is only opened and closed depending on the pressure conditions within the forage harvester duct carrying the crop or by operator input, i.e. here, too, the operator must have a manually opened flap closed before starting operation.
    The object on which the invention is based is seen in providing a control arrangement for controlling a closure device of a forage harvester arranged downstream of a chopper drum and a forage harvester equipped with such a control arrangement, in which the problems mentioned are not to be feared or to a lesser extent.
    solution
    According to the invention, this object is achieved by the teaching of patent claims 1 and 6, features being listed in the further patent claims which further develop the solution in an advantageous manner.
    A control arrangement for controlling a closure device arranged on the underside or top side of a channel of a forage harvester arranged downstream of a chopper drum, which can be a maintenance and / or ventilation flap and / or a flap to allow the accumulated crop to fall out, is electronic Control device equipped with an externally powered actuator, arranged to move the closure device between a closed and an open position, and an actuator
    BE2018 / 0084
    Operator interface is connected, which enables manual entry of a command to open the closure device. The control device is set up to automatically instruct the actuator to close the closing device in the event of a recognized, predetermined operating condition of the forage harvester. The predetermined operating condition indicates a start of harvesting and / or ferry operation of the forage harvester and / or a rotating chopper drum.
    In other words, the control device recognizes on the basis of an operator input or on the basis of a sensor when the forage harvester is likely to or possibly has already started harvesting or ferry operation or has already started or the chopper drum would have to rotate. In this case, the closure device is automatically made to close. This avoids the problems mentioned above.
    The predetermined operating condition which causes the control device to close the closing device can release a parking brake and / or start the operation of the chopper drum and / or automatically or manually close a cover of a grinding device of the chopper drum and / or an automatically or manually accomplished Recording a grinding operation of the chopper drum and / or the start of an automatically or manually initiated adjustment procedure correspond to a shear bar of the chopper drum and / or commissioning of a water and / or silage additive device. All of these processes can be detected by sensors and / or operator input interfaces and used as triggers for closing the closure device.
    In addition, the control device can command an opening of the closure device if a cover of a grinding device is opened and / or upon operator input
    BE2018 / 0084 command opening of a cover of a grinding device to open the closure device.
    embodiment
    An exemplary embodiment of the invention is explained on the basis of the figures. Show it:
    Fig. 1 is a schematic side view of a forage harvester, Fig. 2 is an enlarged view of the chopper drum and the following channel of the forage harvester of Figure 1 with an actuating closure device, and
    3 shows a flow diagram according to which the control of the actuator of FIG. 2 proceeds during operation.
    1 shows a self-propelled forage harvester 10 in a schematic side view. The forage harvester 10 is built on a frame 12 which is supported by front driven wheels 14 and steerable rear wheels 16. The forage harvester 10 is operated from a driver's cab 18, from which a header 20 in the form of a pickup can be seen. By means of the header 20 harvested crop, z. B. grass or the like is fed via a feed conveyor 22 with pre-press rollers, which are arranged within a feed housing 24 on the front of the forage harvester 10, a chopper drum 26 arranged below the driver's cab 18, which chops it into small pieces in cooperation with a shear bar 102 and it (after passing through a
    Post-processing device with two processor rollers 32, 34, which is required for the maize harvest and brought into an extended position for the grass harvest, as shown in FIGS. 1 and 2, or can be removed) from a conveyor device 28. The material leaves the harvesting machine 10 to a transport vehicle traveling alongside via an ejection elbow 30 which can be rotated about an approximately vertical axis and whose inclination can be adjusted. In the following, directional information, such as the side, bottom and
    BE2018 / 0084 above, on the forward direction V of the harvesting machine 10, which runs to the right in FIG. 1.
    The chopping drum 26 is driven from a pulley 48, which is connected to an internal combustion engine (not shown) via an angular gear, via a drive belt 50, which has a pulley 54 for driving the chopping drum 26 and a pulley 52 for driving the conveying device 28. A grinding device 100 is used to grind the chopper knives of the chopper drum 26. In addition, a metal detector 108 is provided in the lower, front pre-press roller, which may be used to quickly stop the feed conveyor 22, and an operator input device 98 coupled to a controller 70 in the driver's cab 18. Die Operator input device 98 makes it possible to switch the chopper drum 26 on and off, for which purpose a power-operated clutch (not shown in the figures) is inserted into the drive train between a drive motor of the forage harvester 10 and the chopper drum 26, which is controlled by the control device 70. The operator input device 98 also makes it possible to activate and release a parking brake of the forage harvester 10 that cooperates with the front and / or rear wheels 14, 16 and is activated.
    FIG. 2 shows the chopper drum 26 and the channel 64 following it in the crop flow direction, in which, among other things, the processor rollers 32, 34 are arranged. The underside of the channel 64 is formed by walls 36, 38 which are interrupted by a closure device 40. The closure device 40 is designed as a flap which is pivotally connected to the rear wall 38 at the downstream end about a horizontal axis 66. A bracket 46 connects the closure device 40 to the piston rod of an actuator 42 in the form of a double-acting hydraulic cylinder, the housing of which is articulated on the frame 12 at the other end. The actuator 42 is accordingly arranged, the closure device 40 between one
    BE2018 / 0084 closed position, in which it is drawn solid in FIG. 2, and an open position pivoted about axis 66, in which it is shown in broken lines in FIG. A sensor 62 detects the position of the actuator 42 and thus the closure device 40. For possible other embodiments of the actuator 42 and the closure device 40, reference is made to EP 1 972 191 A1, the disclosure of which is incorporated into the present documents by reference. In particular, the walls 36, 38 and the closure device 40 in the closed position could rise much more backwards and upwards than is shown in FIG. 2.
    The actuator 42 is controlled by means of a valve unit 56 which is connected to a pump 60 and a sump. The valve unit 56 is controlled by an electronic control device 70, which in turn is connected to an operator input device 98 and the sensor 62. The operator interface 98 can be designed as a computer terminal with a touch-sensitive screen or keys and / or can include conventional operator elements (such as switches or levers, in particular for the chopper drum and the parking brake).
    In operation, the control device 70 proceeds according to the flow chart of FIG. 3. After the start in step 300, a query is made in step 302 as to whether the closure device 40 is closed, for which purpose the signals from the sensor 62 are used. If this is the case, step 308 follows, otherwise step 304. In step 304, a query is made as to whether the operator interface 98 inputs an input for closing the locking device 40 or an input for releasing a parking brake of the forage harvester 10 or an input for switching on the chopper drum 26 is present.
    In step 304, alternatively or additionally, it can be queried whether a cover (not shown, but cf. EP 1 520 464 A2) of the grinding device 100 is closed and / or by the grinding device 100 manually via the user interface 98
    BE2018 / 0084 or by means of a device for detecting the sharpness of the chopper knives of the chopper drum 26 (cf. DE 10 2011 005 317 A1), the grinding chopper of the chopper drum 26 is automatically initiated. The cover of the grinding device 100 can be closed by hand and detected by the control device 70 by means of a sensor, or it is carried out by means of an actuator which is controlled via the user interface 98 or automatically if the mentioned device for detecting the sharpness of the chopper knives Chopper drum 26 should recognize that a grinding process is to be carried out, or a grinding process is initiated by the operator via the operator interface 98, so that the control device 70 is informed by the device for detecting the sharpness and / or the operator interface 98 of the upcoming grinding process. With the cover closed and during the grinding of the chopping knives, the closure device 40 should be closed in order to prevent sparks from escaping through the opened closure device 40. In addition, it is avoided that the operator or a third party touches the chopping drum 26 rotating during grinding (usually backwards) and injures himself.
    In step 304, alternatively or additionally, it can be queried whether a procedure for adjusting the shear bar 102 relative to the chopper drum 26 is carried out, as is described, for example, in DE 10 2013 201 633 B3. When adjusting the shear bar, the chopper drum 26 generally also rotates, so that it makes sense to close the closure device 40 in order to avoid the risk of the chopper drum 26 being touched by the operator or third parties.
    In step 304, it is alternatively or additionally possible to query whether water and / or ensiling agent is being injected into the crop flow. Such an approach indicates harvesting operations.
    BE2018 / 0084
    If the answer to none of the inquiries is positive in step 304, step 302 follows again and step 306 otherwise, in which the control device 70 instructs the valve unit 56 to move the actuator 42 in order to close the closure device 40 until the sensor 62 reports that the closure device 40 is closed.
    In step 308, a query is made as to whether there is an input from the operator interface 98 for opening the closure device 40. If the answer is negative, step 302 follows again and otherwise step 310, in which the control device 70 instructs the valve unit 56 to move the actuator 42 in order to open the closure device 40 until the sensor 62 reports that the closure device 40 is open is. In step 308, an actuator of the cover of the grinding device 100 can also be commanded by the control device 70 to open the cover.
    Accordingly, the closure device 40 is opened by an operator input via the operator interface 98. It would also be conceivable to provide one or more of the automations provided in EP 1 972 191 A1, the disclosure of which is incorporated by reference into the present documents, for opening the closure device 40. An opening process of the closure device 40 can also be initiated in step 308 if the cover of the grinding device 100 is opened, be it by the operator by hand or upon an input into the operator interface 98 by an actuator. This opening indicates upcoming maintenance work in which an opened closure device 40 is advantageous.
    The closure device 40 is closed by an operator input via the operator interface 98 and automatically whenever the chopper drum 26 is rotated or the parking brake is released or at least one of the other conditions mentioned in step 304 is fulfilled. This ensures that the locking device 40 before driving
    BE2018 / 0084 and / or harvesting operation or when the chopper drum 26 is rotating.
    权利要求:
    Claims (6)
    [1]
    1. Control arrangement for controlling a closure device (40) arranged in particular on the underside of a channel (64) of a forage harvester (10) arranged downstream of a chopper drum (26), with an electronic control device (70), which is operated by an externally powered device, for moving the closure device (40) is connected between a closed and an open position actuator (42) and an operator interface (98), which enables manual entry of a command to open the closure device (40), wherein the control device (70) is set up the To automatically command the actuator (42) upon detection of a predetermined operating condition of the forage harvester (10), to close the closure device (40), characterized in that the predetermined operating condition is based on the start of harvesting and / or driving operation of the forage harvester (10) and / or rotating chopper drum (26) indicates.
    [2]
    2. Control arrangement according to claim 1, wherein the predetermined operating condition of releasing a parking brake and / or starting the operation of the chopper drum (26) and / or automatically or manually closing a cover of a grinding device (100) of the chopper drum (26) and / or an automatically or manually accomplished recording of a grinding process of the chopper drum (26) and / or the start of an automatically or manually initiated adjustment procedure of a shear bar (102) of the chopper drum (26) and / or commissioning of a water and / or silage additive device.
    [3]
    3. Control device according to one of claims 1 or 2, wherein the control device (70) is operable to command opening of the closure device (40) if a cover of a grinding device (100) is opened.
    BE2018 / 0084
    [4]
    4. Control device according to one of claims 1 to 3, wherein the control device (70) is operable upon an operator input to open the closure device (40) towards opening a cover of a grinding device (100)
    [5]
    5 command.
    5. Control arrangement according to one of claims 1 to 4, wherein the control device (70) is operable, the predetermined operating condition by means of a sensor and / or in the
    10 user interface (98) of commands entered.
    [6]
    6. forage harvester (10) with a control arrangement according to one of claims 1 to 5.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP1402768B1|2006-08-02|Detecting device to detect a jam in a harvesting machine
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    EP2853147A1|2015-04-01|Chaff cutter with an accelerating device
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    同族专利:
    公开号 | 公开日
    DE102017215891A1|2019-03-14|
    BE1025904A1|2019-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1520464A2|2003-10-04|2005-04-06|Deere & Company|Chopping device for forage harvester|
    EP1972191A1|2007-03-20|2008-09-24|CLAAS Selbstfahrende Erntemaschinen GmbH|Agricultural harvester|
    DE102014008068A1|2014-05-27|2015-12-03|Maschinenfabrik Bernard Krone Gmbh|Self-propelled forage harvester|
    DE102011005317B4|2011-03-09|2017-08-17|John Deere GmbH & Co. KG|Measuring system for determining the state of wear of chopping knives|
    DE102013201633B3|2013-01-31|2014-03-27|Deere & Company|Device for adjusting position of counter-blade relative to blade of chaff device used in e.g. chaff cutter, has two adjustment drives that move counter-blade in parallel position corresponding to desired cutting gap between both blades|
    法律状态:
    2019-10-10| FG| Patent granted|Effective date: 20190812 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017215891.3A|DE102017215891A1|2017-09-08|2017-09-08|Control arrangement for controlling a closure device arranged on the underside of a channel of a forage harvester arranged downstream of a chopper drum|
    DE102017215891.3|2017-09-08|
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