• 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:
    CUTTING DEVICE FOR AGRICULTURAL MACHINES. Cutting device (2) for agricultural machines with several segments and blade carriers (4), temporarily activated and movable in the opposite direction, extending over the working width of the cutting device (2), with the edges of the knives (6) of said segments, on the occasion of a stroke movement of the blade holder bar segments (4), interact with counter knives, fixedly attached to the cutting device (2). In order to keep the width of the untrimmed strip as small as possible, or even for its total elimination, it is proposed that in the area of a gap (22) that results in the region of the ends (8), facing each other, neighboring blade holder bar segments (4), as a consequence of the movement of the blade holder bar segments (4), which decreases and gradually increases, corresponding to the movement of the blade holder bar segments (4), there being positioned a reaper tongue (10), next to which, in the transverse direction, cutting edges (16) of a knife edge (14) are configured, fixedly arranged in the region of this reaper tongue (10) , and that, in relation to the direction of the advance displacement (V) of the cutting device (2), they project in an oblique direction, so that the edges of (...).
    公开号:BR102015005509B1
    申请号:R102015005509-9
    申请日:2015-03-12
    公开日:2020-10-13
    发明作者:Klemens Surmann；Dirk Webermann；Michael Pokriefke
    申请人:Carl Geringhoff Gmbh & Co. Kg；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a cutting device for agricultural machines with several segments and bar, blade holder, driven and moving at least partially in the opposite direction, extending over the working width of the cutting device. cutting, and the knife edges of these segments, on the occasion of a stroke movement of the blade holder segments, interact, the similarity of cuts, with counter-knives, fixedly fixed on the cutting device.
    [0002] A cutting device is now known from DE 195 24 039 A1. The cutting devices of this species can be used especially in cutting mechanisms for harvesters, but also in mowing mechanisms for grass or for harvesting stalks.
    [0003] The document De 195 24 039 A1 describes the subdivision of a cutting device in at least two sections of the cutting device in order to suppress vibrations and avoid losses due to oscillations. Through a phase shift of the drive frequency by 180 °, the vibration that is produced by one section of the cutting device will be compensated by the other section of the cutting device and, in the most favorable case, will be neutralized. This results in a movement in the opposite direction of the sections of the cutting device, transversely towards the working direction of the cutting device. In the case of a reciprocal movement contrary to the sections of the cutting device in a convergent direction, when they reciprocally distance, a gap arises between them that progressively increases in the course of the movement and that only after reaching the two external dead points in the subsequent movement return, it will close, being closed only a short time when the two sections of the cutting device have reached their internal dead point. When the phase shifts to an extent other than 180 °, the span will be closed only for a short time and alternately, without asymmetric direction, on the right and left sides. In the span region, when the cutting device advances, with the harvest product paralyzed, an unmowed strip appears, which constitutes a loss of the unwanted harvest product.
    [0004] Document DE 203 01 750 U1 discloses such a cutting device. Again, the cutter bar is divided into two parts that are movable in opposite directions, so that sometimes a strip of unharvested crop is generated in the central area of the pillar.
    [0005] It is the object of the present invention to keep the width of the unmowed strip to the smallest extent possible reduced or to avoid it entirely.
    [0006] The task will be solved for a cutting device of this kind, and in the area of a gap that results in the region of the extremities facing each other in relation to neighboring segments of blade holder segments as a result of movements of these segments , decreasing progressively according to the movement of the blade holder bar segments and expanding again, in which a reaper tongue is placed in that region, in which the cutting edges of a cutting edge are configured in the transversal direction. of a knife, fixedly arranged in the area of this reaper tongue and which, in the direction of the advancement of the cutting device, are projected in an oblique direction, so that the cutting edges of this knife edge have a V-shaped arrangement that widens in opposition to direction of advancement and in which, on the outer front sides of the knife edges, mounted on the ends of blade holder bar segments facing each other, where they are con cutting edges are shown which extend parallel to the direction of advancement of the cutting device, with a drive of the blade holder bar segments having a phase shift between 80 ° and 100 °.
    [0007] If the cutting device is equipped with a reaper tongue bar, these tongues that form a counter-edge, moving the edges of the knives in the tongue bars back and forth, results in a clean cut and that comparatively consumes little strength of the stems to be harvested. A reaper tongue bar is comparatively insensitive to stones and other obstacles with reduced maintenance work because there are comparatively few moving components. Through the harvesting tongues, distributed in a bar of harvesting tongues, it is especially possible, when advancing in the direction of a harvest product, to lift stems positioned on the ground with the harvesting tongues before being cut. In this way, additional losses of the harvest product will be avoided, which is of particular importance in the case of harvest product to be cut close to the ground, such as soybeans.
    [0008] With this combination of the set of knife edges and the configuration of the cutting edges provided for in them, it is possible to bridge, through the fixed knife edge, the gap that results as a result of the movement of the segments of the carrier bars blades and which - correspondingly to this movement of the blade holder segments - decreases and increases again. In this case, the V-shaped cutting edges of the fixed knife edge cooperate in the form of a scissors cut with the cutting edges of the knife edges mounted on the ends facing each other in relation to neighboring segments of blade carriers, what happens during its movement of course in the reaper tongues, arranged in the span area, making it possible that the stems of the harvest product, provided for in the region of the fixed knife edge, can be safely cut. In this way, a strip not cut in the gap between the blade holder segments will be avoided. Likewise, due to the arrangement in accordance with the invention, it is possible to provide harvesting tongues in the region of the span and beside it, which suspend the harvest product deposited in the region in the span, in the soil, contributing to avoid losses of harvest by a safe cut.
    [0009] By the phase shift in the actuation of the adjacent segments of the lamina bars in an order of magnitude between 80 ° and 100 ° it is achieved that the force peaks of the two segments of the lamina bars, resulting in the cutting of the stems , present themselves with a time lag, so that the overall strength needs of the cutting set can thus be kept comparatively low. In addition, in the case of a given width of the knife edges and a distance resulting from the reaper tongues, reciprocal geometric relationships result, in which the gap between the blade holder bars is not too large and can be bridged by the cutting edge. fixed knife, the width of which corresponds at least approximately or precisely to the width of the other knife edges. The indicated phase shift from 80 ° to 10 ° is valid for a mechanical drive with rotating shafts, usually with a complete turning of the 360 ° drive shaft, in the case of a hydraulic or electronic control, when the phase shift can also be carried out by hydraulic or electronic means.
    [00010] According to one embodiment of the invention, the reaper tongue arranged in the span area is joined with two other reaper tongues, spaced from the first, and this fixation is performed on a common fixing ruler and the lateral distance of the two other reaper tongues in In relation to the reaper tongue, arranged in the span, it always corresponds at most to the width of a knife edge, moved in this intermediate space. The triple reaper tongue, formed in this way, constitutes a safe conduction for the ends of adjacent blade holder bar segments and the external knife edges stuck there during their travel movements. Due to the distance between the reaper tongues, reduced at most to a width of the knife edge, these tongues can well support a knife edge that moves in this region. During the stroke movement, the external knife edges of the blade holder bar segments will be supported by the reaping tongues, thus being able to make a clean cut. The incidence of fragility breaks is also reduced and the durability of the external knife edges increases when the external knife edges, as a result of better support, may receive less torsional forces.
    [00011] According to an embodiment of the invention, the edges of external knives, mounted on the ends facing each other of adjacent blade holder bar segments, have a width that corresponds at least approximately half the width of the other edges of knife, provided in a segment of the blade holder bar and the knife edge, fixedly fixed in the region of the reaper tongue in the span, has a width that at least approximately corresponds to the width of the other knife edges, arranged in a segment slide bar. Due to the width divided in half by the edges of external knives, in the case of a basic shape approximately trapezoidal, of a complete knife edge on the external front face, a straight cutting edge appears that cooperates satisfactorily with the respective cutting edge of the cutting edge. knives fixedly fixed in the reaper tongue region, in order to cut the stems, the long cutting edge, during a stroke movement, starts to cut the entire cutting edge belonging to the knife edge fixedly and at least in one The terminal position is covered by a reaper tongue, located in the span.
    [00012] According to an embodiment of the invention, two adjacent slide bar segments have a drive that drives the two slide bar segments with phase shift. With phase shift, it is intended to indicate a drive, in which the blade holder bar segments are not movable in synchronism in the opposite direction or in the same direction. For example, the drive can be done using one or more cranks, eccentric push bars, a hydraulic cylinder or an electric motor. The phase shift can be produced through suitable mechanical devices and / or through electrical, electronic or hydraulic circuits. By the phase shift, it is possible that the peak load in the drive section that is generated when a position of the knife edges is reached in relation to the reaper tongues as counter-edges, is present only for one of two carrier bar segments. neighboring blades, in such a way that the peak load is divided in half and with a time lag is presented for the respective blade holder bar that is in the corresponding position. In this way, the drive section can be relieved and can be designed in a lighter way.
    [00013] According to one embodiment of the invention, two adjacent segments of slide bars are driven by a drive disc that is propelled in a rotating direction and whose rotary movement, through connecting rods, eccentrically joined and with phase displacement with the disc actuator, being transferred to tilting levers, movable around the axis of rotation arranged approximately in the central direction and at their ends, spaced in relation to the union with the connecting rod, are joined with the respective segment of the blade holder bar. The actuation of the two segments of the blade holder bar through a drive disk ensures a good mechanical coupling and synchronization of the movements of the two segments of the blade holder bar. The drive can be designed with space and weight savings, which is an important point of analysis in the cutting mechanisms.
    [00014] According to an embodiment of the invention, the actuating disc and the connecting rods are mounted in a closed gear housing which is located on the underside of the cutting device and behind the blade holder bar segments. Due to the closed housing, the drive is maintenance-free. For better protection against impurities, the drive has greater durability and less failure.
    [00015] It is expressly stated that the above described modalities of the invention can be combined or separately, but also in a random combination with the object of claim 1.
    [00016] Other modifications and modalities of the invention may be inferred from the subsequent, detailed description and drawings.
    [00017] The invention will now be explained in more detail based on an example of execution. The Figures show:
    [00018] Fig. 1: a basic sketch of a cutting device, Fig. 2: the cutting device of Fig. 1 with a modified position of the blade holder segments, and Fig. 3: the cutting device of Fig. 1 with another modified position of the blade holder segments.
    [00019] Fig. 1 is a basic sketch of a cutting device 2. The cutting device 2 presents in the execution example two segments of blade carriers 4 which in the execution example are reciprocally separated in the central area of the drawing. In the rotated position, where the blade holder bars 4 segments are located in Fig. 1, the separation of the two blade holder bars 4 segments from each other is not visible, because with their ends 8, facing each other , and the edges of external knives 18 attached there, are immersed in the central reaper tongue 10. Beside the central reaper tongue 10 located in the region of a gap 22, generated when the segments of the blade holder bar 4 move, the cutting device 2 has a variety of other reaper tongues 12 that serve as counter -cutting edge for knife edges 6, attached to the blade holder bar segments 4.
    [00020] Below the reaper tongue 10 there is a fixed knife edge 14 which in Fig. 1 is covered by the external knife edges 18. The fixed knife edge 14 has cutting edges 16 that project obliquely in the direction of feed V.
    [00021] In the execution example, the reaper tongue 10 is joined with adjacent reaper tongues 12, by means of a fixing ruler 24, so that the three reaper tongues 10, 12 start to configure a group constructed of triple reaper tongues. By the connection with the support of the three reaper tongues through the fastener strip 24, especially the reaper tongue 10 is better supported against the changing loads acting on it as a result of the movement of the two segments of the blade holder bar 4. The fastener strip 24 can be connected with the cutting device 2 by means of screws, rivets or other means of fixation.
    [00022] In addition, Fig. 1 shows an example of execution for a drive 25. The drive 26 starts from an actuator disk 28, driven in a rotating manner, with which two eccentric connecting rods 30 are joined. At their ends separated from the drive disk 28, the two connecting rods 30 are joined in a movable form. In the event of a rotating movement of the actuating disc 28, the connecting rods 30 push or pull the tilting levers 32 around the pivot axis 34 according to the pivoting position of the actuating disc 28 in the transverse direction of the cutting direction 2 forward or back. In Fig. 1, the rotating movement of the actuating disc 28 is indicated by an arrow. The movement of the two blade bar segments 4 that arise when the actuator disk 28 turns in the direction of the arrow through the connecting rods 30 and the rocker lever 32, is indicated by short arrows. As the right connecting rod 30 has not yet reached its outermost dead point in the rotated position shown in Fig. 1, in another turn of the actuating disc 28 clockwise, the right segment of the blade holder bar 4 would still move to the left by a short segment. The left connecting rod 30, when turning the actuating disc 28 clockwise, would be pulled to the right so that the left segment of the blade holder bar 4 will also move to the left side.
    [00023] Fig. 2 shows the cutting device 2 with a modified position of the blade holder bar segments 4. The actuator disk 28 - compared to the turning position shown in Fig. 1 - is additionally rotated by a enjoys segment, with which the right connecting rod 30 will have reached its right death point in the transversal direction. With an additional turning of the actuating disk 28 clockwise, the right segment of the blade holder bar 4, induced by the rotary movement transmitted through the connecting rod 30 and the tilting lever 32, would move to the right side. With a continuous rotating movement of the actuating disc 28 clockwise the left connecting rod 30 would be pulled from its position shown in Fig. 2 more to the right so that the left rocker lever 32 on the left segment of the blade holder 4 will move to the left side.
    [00024] In the rotating position of the actuating disk 28, shown in Fig. 2, it can be clearly seen that the knife edge 18 external to the outer segment of the blade holder bar 4 has been removed from the reaper tongue 10 which is in the span region 22. The left external knife edge 18 has a cutting edge 20 on its front side, which, when the external knife edge 18 moves in the direction of the reaper tongue 10 which cooperates with the cutting edge 16 which it is found on knife edge 14 in order to cut stems found in this region of the cutting device 2. When passing knife edge 18 over knife edge 14, a cut similar to scissor movement will result.
    [00025] As the external knife edge 18 of the right segment of the blade holder bar 4 is still located in the reaper tongue 10, the cutting edge 20, which is found in this external knife edge 18, is not yet visible in the Fig. 2. However, in this rotated position of the right segment of the blade holder bar 4, the cutting edge 16 of the knife edge 14 there can be recognized.
    [00026] Fig. 3 shows the two segments of the blade bar 4 close to its outermost dead point, so that the gap 22 between the two knife edges 18 is clearly visible. While with a continuous rotation of the actuating disk 28 in a clockwise direction, the left segment of the blade holder bar 4 will already be moved, again, towards the reaper tongue 10, the right segment of the blade holder bar 4 if distanced a small section of the reaper tongue 10 before starting to move back again. In order to better present the external knife edge 14, the reaper tongue 10 is not shown in Fig. 3. It can be well recognized in Fig. 3 that the stems found in the gap 22 between the cutting edges 16 and 20 of the fixed knife edge 14 and the two external knife edges 18, will be cut securely during a return movement of the two segments of the blade holder bar 4 towards the reaper tongue 10.
    [00027] The invention is not restricted to the preceding example. The specialist will not find it difficult to modify the example of execution to a form that seems appropriate in order to adapt it to a specific use case.
    权利要求:
    Claims (6)
    [0001]
    1. Cutting device (2) for agricultural machinery with several segments and blade bars (4) that extend at least temporarily driven and movable in the opposite direction, extending over the working width of the cutting device (2) , and the edges of the knives (6) of these segments, on the occasion of a movement of the blade bar movements (4), interact with the similarity of scissors cutting, with counter knives fixed fixedly on the cutting device (2) , in which, in the region of a gap (22) which results in the area of the ends (8) facing each other of neighboring segments of blade holder bar segments (4), as a result of the movement of the segments of said bars cutting edges (4), progressively reducing correspondingly to the movement of the blade holder bars segments (4), increasing in the transversal direction, cutting edges (16) of a knife edge (14) are configured ), which is fixed region of this reaper tongue (10), projecting obliquely in the forward direction (V) of the cutting device (2), so that the cutting edges (16) of this knife edge (14) have an arrangement of shape of (V) that extends against the forward direction (V) and provided on the external front sides of the external knife edges (18), provided on the ends (8), facing each other, of neighboring segments of bars blade holder (4), where cutting edges (20) are formed that extend parallel to the forward direction of the cutting device (2), characterized by the fact that a reaper tongue is arranged in the span ( 10), and a drive (26) of the neighboring slide carriers (4) has a phase shift between 80 ° and 100 °.
    [0002]
    2. Cutting device (2) according to claim 1, characterized by the fact that the reaper tongue (10) arranged in the span (22), is joined with two other reaper tongues (12), spaced apart relation to the first tongue, this union being produced by means of a common fastening ruler (24) and the lateral distance of the two other reaping tongues (12) in relation to the reaper tongue (10), arranged in the span (22), always corresponds at least the width of a knife edge (18) moving in this intermediate space.
    [0003]
    Cutting device (2) according to claim 2, characterized by the fact that the external knife edges (18), mounted on the ends (8), facing each other in neighboring segments of carrier bars wools (4), have a width that corresponds, at least, to half the width of the other knife edges (6), provided in a segment of the wool-holder bar (4), and the knife edge (14), fixedly disposed in the reaper tongue region (10) in the span region (22), it has a width that at least approximately corresponds to the width of the other knife edges (6), mounted on a segment of the blade holder bar (4).
    [0004]
    4. Cutting device (2) according to any one of the preceding claims, characterized by the fact that two neighboring segments of blade-holder bars (4) have a drive (26), triggering the two segments with phase shift. blade holder bar (4).
    [0005]
    5. Cutting device (2) according to claim 4, characterized by the fact that two neighboring segments of blade holder bars (4) are driven by a drive disk (28) driven in a rotating manner, whose rotary movement is transferred to the tilting lever (32) by means of connecting rods (30), eccentric and joined with phase displacement with the actuating disk, which are movable around turning axes (34), approximately in the central direction, and in their ends (8), spaced apart in relation to the connection with the corresponding connecting rod (30), are joined with the respective segment belonging to the blade holder bar (4).
    [0006]
    Cutting device (2) according to claim 5, characterized by the fact that the actuating disc (28) and the connecting rods (30) are mounted in a closed gear housing located on the underside of the cutting device cut (2) and behind the blade holder bar segments (4).
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    法律状态:
    2016-05-24| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-02-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-13| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/03/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014003493.3|2014-03-14|
    DE102014003493.3A|DE102014003493A1|2014-03-14|2014-03-14|Cutting device for agricultural machinery|
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