JP2017163868A - Crop reaping mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crop reaping mechanism that is free from a portion not reaped even when reaping crops with different interrow spaces and can reap the crops with the uniform reaping height.SOLUTION: A removable divider 3a positioned in the vicinity of a vehicle body center of left and right drums 21 can be attached and detached, and a removable central divider 3b having a grass-dividing unit 32 of large left and right width can be fitted to a central gap portion of the left and right drums 21. Then, the removable divider 3a is detached when harvesting crops with a narrow interrow, and the removable central divider 3b is attached to enable reaping the crops at the front side of reaping blades 22, and thereby a reaping height can be lowered. Alternatively, the removable divider 3a is attached when reaping the crops with a wide interrow, and the removable central divider 3b is detached.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a crop cutting mechanism of a crop shredding device that can cut and shred different types of forage crops such as corn, rice, and wheat, and more specifically, harvests crops having different striations. The present invention relates to a crop cutting mechanism that makes the cutting height uniform.

  Conventionally, there is a crop shredding device that can cut and shred different types of feed crops such as corn, rice, and wheat (Patent Document 1, etc.). Among such crop shredding devices, a harvesting mechanism of a device that harvests crops by rotating a drum in front of the vehicle body will be described with reference to FIGS.

  10 and 11, reference numeral 8 denotes a cutting mechanism, which includes a pair of drums 81 that rotate about the longitudinal axis direction, and a divider 82 that is provided so as to protrude forward of the pair of drums 81. Configured to have. On the outer peripheral portion of the drum 81, there are provided a cutting blade 83 that is rotatably provided, a claw 84 that moves the crop in the rotating direction above the cutting blade, and the like. An arm 85 extending from the lower side toward the front side and a weeding part 86 attached to the tip portion of the arm are provided. And when harvesting crops such as corn using such a drum 81, the vehicle body is run along the field strips, and the crops are guided by the weeding part 86 to the cutting blade 83, and the cutting blade 83 is used. reap. The crops harvested in this way are collected in the central part of the left and right drums 81, drawn from the stock into the transport unit, and shredded, and then discharged to the rear of the vehicle body via the shooter.

Design Registration No. 1470510

  By the way, when a crop is shredded using such a cutting mechanism, there are the following problems.

  That is, when such a cutting mechanism 8 is attached to the front of the vehicle body, the drum 81 may be attached to the vehicle body in a state where the drum 81 is inclined forward. However, when the drum 81 is attached in a state where it is tilted forward in this way, for example, in the case of harvesting a narrow crop such as rice or wheat, the front of the drum 81 as shown in the lower diagram of FIG. The cutting height is low at the portion, and conversely, the cutting height is high near the side of the drum 81. And if the cutting height becomes high in this way, not only will there be a waste in harvesting, but the appearance on the field will also deteriorate, or it will take time to plow the soil uniformly during the subsequent cultivating work. There was a problem that it took.

  Moreover, not only when the drum is tilted forward in this way, but also when the drum is mounted in a horizontal state, if the tip of the weed portion hits the crop, it will fall down and leave behind the cutting, or Further, there is a problem that the crop height is uneven when the crop is divided into right and left and the stem is bent and the stem is bent, or further, the crop is cut while standing upright.

  Accordingly, the present invention focuses on the above-mentioned problem and provides a crop cutting mechanism that can cut a crop with a uniform cutting height without cutting any residue even when cutting a crop with different striations. Objective.

  That is, in order to solve the above-described problems, the present invention includes a cutting blade provided on the outer peripheral portion of a rotating drum and a plurality of weeding portions provided in front of the drum and guiding crops in the field to the cutting blade side. In the crop harvesting mechanism, which has a divider and guides the crop to the cutting blade side using the weed portion of the divider by running the field while rotating the drum, and can harvest the crop with the cutting blade, The mounting state of the weed portion is supported by the support portion in a changeable manner.

  If comprised in this way, when cutting the crop from which a line differs, it will become possible to attach and cut a weed part in the state corresponding to the line. Moreover, even if the drum is attached to be inclined forward, the cutting height can be lowered by arranging the weeds so that the crop is brought to a position where the cutting height is low. Here, the case where the attachment state of the weed portion is changed includes the case where part of the weed portion can be attached and detached, the case where the position, interval, angle, etc. of the weed portion are changed. .

  Moreover, when attaching such a weeding part, the attachment state of a weeding part is changed by detaching | detaching the divider which has the weeding part from a support part.

  If comprised in this way, just remove the divider which has a weeding part, if the weeding part is unnecessary, remove the divider, and if the weeding part is necessary, attach the divider and attach the weeding part. The mounting state can be changed.

  Further, a pair of left and right drums are provided, and a weed portion having a width overlapping with the left and right cutting blades is attached to the center gap position of the left and right drums.

  If comprised in this way, by attaching this weed part with a large right-and-left width, a crop can be distributed right and left, and it can mow in the front side of a drum, and it can mow at the position where the cutting height is low.

  According to the present invention, there is provided a cutting blade provided on the outer peripheral portion of the rotating drum, and a divider provided in front of the drum and having a plurality of weed portions that guide crops in the field to the cutting blade side, In the crop cutting mechanism in which the crop is guided to the cutting blade side using the weed portion of the divider by rotating the drum while rotating the drum, and the crop can be cut with the cutting blade, the attached state of the weed portion Since the support part is supported so that the change can be made, when the crops having different lines are cut, the weeds can be attached and cut in a state corresponding to the lines. In addition, even if the drum is attached to be tilted forward, it is possible to mow at a low position by arranging the weeds so that the crop is brought to the portion where the cutting height is low. .

1 is a schematic side view showing a crop harvesting apparatus according to an embodiment of the present invention. Plan view of the cutting mechanism in the same form The bottom view of the cutting mechanism in the same form The figure which shows the conveyance mechanism in the form The figure which shows the shredding mechanism in the same form The figure which shows the support part and divider which are attached to the drum of the vehicle body front left side in the same form State diagram of attaching the removable central divider to the central divider in the same form The figure which shows the cutting mechanism at the time of cutting wide crops in the same form The figure which shows the cutting mechanism at the time of cutting a narrow crop in the same form Figure showing the cutting height when cutting wide crops A figure showing the cutting height when cutting narrow crops between rows

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, as shown in FIG. 1, the crop harvesting apparatus 1 according to this embodiment is harvested by a harvesting mechanism 2 that harvests crops using left and right drums 21 that rotate about a vertical axis, and is harvested by the harvesting mechanism 2. A conveyance mechanism 4 (see FIG. 4) that draws and conveys the crop from the stock side to the inside, and a shredding mechanism 5 (see FIG. 5) that shreds the crop conveyed by the conveyance mechanism 4 are provided. The crop shredded by the cutting mechanism 5 is discharged to the rear of the vehicle body and can be supplied as a feed crop. Characteristically, when the drum 21 in front of the vehicle body is tilted forward and attached to the vehicle body The attachment state of the weeding portion 32 can be changed by detachably attaching the divider 3 provided on the front side of the drum 21. Then, by changing the attachment state of the weed portion 32 in this way, when cutting a narrow crop between the streaks, the crop is brought to a low position of the cutting blade 22 of the drum 21 as shown in FIG. Thus, the arrangement state of the weed portion 32 is changed so that the cutting height can be reduced and the cutting can be performed. Hereinafter, the crop harvesting apparatus 1 and its cutting mechanism 2 in the first embodiment will be described in detail.

  First, the harvesting mechanism 2 of the crop harvester is attached to the front of the vehicle body. Here, as shown in FIG. 2 and the like, a pair of left and right drums 21 that rotate about the vertical axis, and the drum 21 It is comprised so that it may have the divider 3 etc. which are provided in the front side. The drum 21 includes a plurality of cutting blades 22 provided on the outer peripheral portion, a plurality of claws 23 provided on the upper side of the cutting blades 22, and the like. 23 is moved in the rotational direction. Further, as shown in FIG. 3 or the like, the divider 3 provided in front of the left and right drums 21 includes an arm 31 extending forward from a support portion 24 provided on the lower side of the drum 21 and a tip of the arm 31. It is comprised so that it may have the weeding part 32 provided in the side, and this weeding part 32 can cultivate the crop of a field and can guide to the cutting blade 22. FIG. The weeding portion 32 is provided with an inclined portion 33 that allows the crop to be directed toward the center of the vehicle body, thereby guiding the crop to the cutting blade 22 while bringing the crop toward the center of the vehicle body. Yes. Further, the central divider 3c provided in the central gap portion of the left and right drums 21 is provided with a rhombus-shaped weed portion 32 having a size corresponding to the width of the central gap at the upper portion of the standing piece 34. By 32, the crop is brought close to the left and right cutting blades 22 so that it can be cut. As described above, when the crop is guided to the cutting blade 22 in a state where the crop is divided by the weeding portion 32 provided in front of the left and right dividers 3, the cutting blade 22 cuts the crop, but at this time, the cutting is not performed. The crops are conveyed in the rotation direction by the claws 23 and the like, and are harvested by the cutting blade 22 in a state where the vicinity of the stock is fixed to the arm 31. Further, crops that are cut by the central gap portion of the left and right drums 21 are divided into right and left by the weeding portion 32 of the central divider 3 c and are cut by the cutting blade 22. The crops that have been cut and mowed by such a weeding portion 32 are collected in the central direction of the vehicle body as a whole, with the upper portion of the crop applied to the tilting bar 25 provided on the upper side of the drum 21. It is drawn from the stock company to the transport section.

  On the other hand, the transport mechanism 4 transports the crop harvested by such a mowing mechanism 2 so that it can be shredded by a shredding mechanism 5 provided on the downstream side. As shown in FIG. 1, the crop is placed in a horizontal state by providing a first transport roller portion 41 composed of a pair of upper and lower rollers and a second transport roller portion 42 composed of a pair of upper and lower rollers on the downstream side. Then, it is conveyed to the shredding mechanism 5.

  Among these, the first transport roller portion 41 on the front side is configured by providing a lower fixed roller 41a and an upper variable roller 41b, and transports a crop by sandwiching a crop between the fixed roller 41a and the variable roller 41b. I try to let them. The fixed roller 41a and the variable roller 41b are provided with intermittent protrusions in the axial direction of the outer peripheral surface so that the crops harvested by the front trimming mechanism 2 can be surely captured. The crop is taken in, and the variable roller 41b sandwiches the crop from above and below.

  On the other hand, the second conveying roller section 42 on the downstream side, like the first conveying roller section 41, is configured by providing an upper fixed roller 42a and a lower variable roller 42b, and is variable with the fixed roller 42a. The crop sandwiched between the first transport roller unit 41 is transported in the stem axis direction by sandwiching the crop in the gap between the rollers 42b.

  As shown in FIG. 5, the shredding mechanism 5 is capable of shredding the crop conveyed by the transport mechanism 4, and includes a cylinder 51 that rotates about an axis in the left-right direction of the vehicle body, A cylinder cutter 52 provided on the outer peripheral portion of the cylinder 51 and a fixed blade 53 provided on the rear side of the fixed roller 42a in the second transport roller portion 42 are provided, and the cylinder cutter 52 is rotated at high speed. Therefore, the crop is sandwiched between the fixed blade 53 and shredded. The cylinder 51 is provided with a plurality of blades 54 for blowing up the chopped crops. By rotating the cylinder 51 at a high speed, the chopped crops are blown up as they are and passed through the shooter 6. So that it is discharged to the rear of the car body.

  A roll forming part 7 (see FIG. 1) is provided at the rear of the vehicle body, and a crop roll is taken into the roll forming part 7 so that a cylindrical roll bale can be formed. Here, the roll forming portion 7 is provided on the rear side of the vehicle body, but the rear side of the vehicle body may be used as a loading platform, and a roll bale may be separately formed by loading the chopped crops there.

  By the way, when the crop that has been cut in this way is shredded, if the configuration in which the crop is shredded by the cylinder cutter 52 is used, the fixed blade 53 is positioned as high as the front side of the center position of the cylinder 51 as shown in FIG. Therefore, crops must be shredded at a high position. On the other hand, since the crop cutting position is in a low part of the ground, it is necessary to incline the cutting mechanism 2 and the transport mechanism 4 to transport the crop diagonally upward. However, when the harvesting mechanism 2 or the like is tilted in this way, when harvesting a narrow crop between the rows, the harvesting height becomes low on the front side of the drum 21, while the harvesting height on the side portion of the drum 21. Will become high. For this reason, in this embodiment, the attachment state of the weeding part 32 can be changed so that the difference in these cutting heights can be made as small as possible.

  The state when changing the attachment state of the weed portion 32 will be described in the case of cutting a wide crop such as corn or the case of cutting a narrow crop such as rice or wheat. To do.

  <When harvesting wide crops between the lines>

  First, when harvesting a crop having an interval of about 75 cm, such as corn, four left and right dividers 3 are attached to the support portion 24 of each drum 21 as shown in FIG. Then, by running on the field, the crops are harvested one by one with each drum 21. At this time, the center part of the divider 3 provided on each of the four left and right sides (that is, the second and third dividers 3). In between) and harvest the crops. Then, the crop is applied to the inclined portion 33 of the weed portion 32 so that the crop can be cut toward the center of the vehicle body.

  <When harvesting narrow crops between the lines>

  On the other hand, when harvesting a narrow crop such as rice or wheat having a length of 30 cm, the left and right drums 21 are used to harvest three crops as shown in FIG. One strip is cut at a position where the cutting blade 22 is low, and one strip on the outside of the vehicle body is moved toward the center of the vehicle body by the inclined portion 33 of the outer weed portion 32 and cut. That is, the middle strip and the outer strip of the vehicle body are cut with a cutting height that is low to some extent. On the other hand, for the one strip near the center of the vehicle body, if it is cut with the four dividers 3 and 3a (the state shown in FIG. 8), the weeding portion 32 of the divider 3a near the center of the vehicle body is used. Further, the crop is moved toward the center of the vehicle body, and is cut near the gap between the left and right drums 21, resulting in a high cutting height (as shown in FIG. 11). Therefore, in this embodiment, as shown in FIG. 9, the divider 3a closest to the vehicle body center portion is removed from the support portion 24 so that the crop of the strip can be directly applied to the cutting blade 22, The detachable central divider 3b having the weed portion 32 having a larger lateral width is attached to the central divider 3c located in the central gap portion of the left and right drums 21. Then, by attaching the weed portion 32 having a large left and right width in this way, the crops in the vicinity of the center are moved as close to the position of the cutting blade 22 as possible so that they can be cut. Here, the width of the weed portion 32 of the detachable central divider 3b is set to a size that overlaps with the cutting blades 22 of the left and right drums 21, so that the crop that hits the weed portion 32 is removed. 22 so that it can be moved forward.

  When attaching / detaching the divider 3 closest to the vehicle body center portion on the front side of the drum 21 (hereinafter referred to as “detachable divider 3 a”), as shown in FIG. 6, a support provided below the drum 21. An insertion hole 36 for inserting the arm 31 of the detachable divider 3a is provided in the part 24 so that the arm 31 of the detachable divider 3a can be inserted therein. A flange portion 37a for fixing the insertion state of the arm 31 is provided in the vicinity of the insertion hole 36, and the flange portion 37b provided on the arm 31 is brought into surface contact with the flange portion 37a and fixed with a bolt. I can do it.

  On the other hand, when attaching the detachable central divider 3b provided in the central gap portion of the left and right drums 21, as shown in FIG. 7, the standing groove 35 provided on the top surface of the weed portion 32 of the detachable central divider 3b is provided with the central divider. It is inserted into the standing piece 34 of 3c, and can be fixed by inserting a bolt from the side.

  In such a configuration, when harvesting narrow crops such as rice and wheat, as shown in FIG. 9, as shown in FIG. 9, the detachable divider 3 a closest to the vehicle body center portion of the drum 21 is removed from the support portion 24, A detachable central divider 3b having a weed portion 32 having a large lateral width is attached to the central divider 3c.

  And the weeding part 32 is arrange | positioned in such a state, and a vehicle is driven along a strip | line, rotating the drum 21. FIG. Then, the crop present at the center front position of each drum 21 is mowed at a low position while being moved toward the center of the vehicle body by the weeding portion 32 of the divider 3, and the crop of the strip located outside the vehicle body is separated from the divider 3. Is cut toward the center of the vehicle body by the inclined portion 33 of the weed portion 32 and cut at a relatively low position of the cutting blade 22.

  On the other hand, for the crops located on the vehicle body center side, since there is no detachable divider 3a, it hits the cutting blade 22 as it is and is cut off at that position, or moved in the rotational direction of the drum 21 and attached to the detachable center. It hits the wide weed portion 32 of the divider 3b and is cut by the front side of the cutting blade 22. As a result, the crop can be cut at a low position.

  <Process after cutting>

  Then, the crops harvested by the harvesting mechanism 2 are collected in the center of the vehicle body by the claws 23 of the drum 21 and taken into the transport mechanism 4 from the stock source side with the upper portion applied to the tilting bar 25. Go.

  When the crop is taken into the transport mechanism 4 in this way, the crop is sandwiched from above and below at the front and rear positions of the first transport roller portion 41 and the second transport roller portion 42, and the crop is fixed downstream in the front and rear direction. It will be conveyed to the side shredding mechanism 5.

  Then, when the crop is transported to the shredding mechanism 5 in this way, the crop is guided to the fixed blade 53 in a state where the vertical movement is suppressed by the fixed roller 42a of the second transport roller portion 42, and rotated from below. The crop is shredded by the incoming cylinder cutter 52. The shredded crop is blown upward by wind pressure from the blades 54 and discharged to the rear of the vehicle body through the shooter 6, and a roll bale for feed is formed by the roll forming unit 7 at the rear of the vehicle body.

  As described above, according to the above-described embodiment, the cutting blade 22 provided on the outer peripheral portion of the rotating drum 21 and the plurality of weeds provided in front of the drum 21 to guide crops in the field to the cutting blade 22 side. A divider 3, 3 a, 3 b, 3 c having a section 32, and a crop cutting blade using the weeding section 32 of the divider 3, 3 a, 3 b, 3 c by running the field while rotating the drum 21 In the cutting mechanism 2 which is guided to the side 22 and can harvest the crop with the cutting blade 22, the support portion 24 is supported so that the attachment state of the weed portion 32 can be changed. In the case of cutting, the weed portion 32 can be attached and cut in a state corresponding to the interval. Thereby, even when the drum 21 is inclined forward, as shown in FIG. 9 and the like, by arranging the weed portion 32 so that the crops are brought close to the portion where the cutting height is low, at a low position It can be made to reap.

  In addition, when attaching such a weed portion 32, when cutting a narrow crop such as rice or wheat, the detachable divider 3a is detached from the support portion 24 so that the cutting height can be lowered. The grass portion 32 can be arranged.

  Further, a weeding portion 32 larger than the central divider 3c is provided at the central gap position between the left and right drums 21, and a detachable central divider 3b having a large weeding portion 32 overlapping the left and right cutting blades 22 is attached. Therefore, the crops 32 can be distributed to the left and right by the weed portion 32 and can be mowed at the front side of the drum 21, and can be mowed at a lower position of the mowing blade 22.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above-described embodiment, the attachment state of the weeding portion 32 can be changed by enabling the attachment / detachment divider 3a to be attached to and detached from the support portion 24. However, as another method, it is provided below the drum 21. The support portion 24 may be provided with a slide groove in the left-right direction of the vehicle body, and the base end portion of the arm 31 may be slid and fixed at an arbitrary position in the left-right direction along the slide groove.

  Alternatively, instead of providing such a slide groove, a plurality of insertion holes are provided, and the attachment position of the divider 3 can be changed by selecting one of the insertion holes and inserting an arm. Also good.

  In addition to changing the mounting position for each divider 3 as described above, the inclined portion 33 is reversed by rotating the weed portion 32 about the axis of the arm 31 to thereby rotate the portion near the center of the vehicle body. It is also possible to guide the crop to the outside of the vehicle body with the grass portion 32, thereby guiding the crop to the front side of the cutting blade 22 so that it can be cut at a low position. When reversing and attaching such a weed portion 32, the weed portion 32 is attached to the arm 31 so that it can be inserted, and the weed portion 32 is reversed and inserted into the tip of the arm 31 to be fixed. It is good to make it change the attachment state of the weeding part 32 by this.

  Furthermore, in the above-described embodiment, the removable central divider 3b is further attached with the central divider 3c attached. However, the removable central divider 3b may be attached after the central divider 3c is removed.

  Moreover, although the said embodiment demonstrated the case where the attachment state of the weeding part 32 at the time of inclining the drum 21 was demonstrated, also in the structure where the drum 21 is a horizontal state, the position of the weeding part 32, You may be able to change an angle etc. so that it can respond to the different crops of a line.

DESCRIPTION OF SYMBOLS 1 ... Crop harvesting apparatus 2 (8) ... Cutting mechanism 21 (81) ... Drum 22 ... Cutting blade 23 ... Claw 24 ... Support part 3, 3a, 3b, 3c ... -Divider 31 ... Arm 32 ... Weeding part 33 ... Inclined part 34 ... Standing piece 35 ... Standing groove 36 ... Insertion holes 37a, b ... Flange part 4 ... Transport mechanism 5 ... Shredding mechanism

Claims (3)

A cutting blade provided on the outer periphery of the rotating drum;
A plurality of dividers that are provided in front of the drum and guide the crops in the field to the cutting blade side;
In the crop harvesting mechanism for cutting the crop by guiding the crop along the strip to the cutting blade side in the weeding part provided on the tip side of the divider by running the field while rotating the drum,
A crop cutting mechanism characterized in that the position of the weed portion of the divider is attached to the support portion in a changeable manner. The crop cutting mechanism according to claim 1, wherein the divider is detachably attached to the support portion. The crop cutting mechanism according to claim 1, wherein a pair of left and right drums are provided, and a weed portion having a width overlapping with the left and right cutting blades is attached to a central gap position between the left and right drums.

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