JP3814022B2 - Cutting rod discharge mechanism of waste cutter device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mechanism for diffusing and discharging a cutting rod in a waste cutter apparatus attached to the rear portion of the combine.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, the configuration of a waste cutter device attached to a combiner has been publicly known. For example, Japanese Utility Model Laid-Open No. 60-68955, Japanese Utility Model Laid-Open No. 61-1000095, and Japanese Utility Model Publication No. 6-39562.
These prior arts provide a spira at the stocker side corresponding site below the disc cutter of the waste cutter device, provide a guide plate that surrounds the area other than the top of the spira, and drop the stock side cut shear toward the tip side It was made to discharge, or a diffusion blade was provided on the stocker side of the spira part to diffuse the cut ridge and discharge it to the already cut side.
[0003]
[Problems to be solved by the invention]
However, when the spira is arranged only on the stock side in this way, the waste will not fall on the end of the stock side and the cut will not be effectively diffused, and the cut will be solidified on the tip side. As a result, there was a problem that the waste was accumulated in the shape of a cocoon, which made it difficult to rot, and the nutrients became stiff. Further, if the spira portion is surrounded by the diffusion cover, the cutting rod is easily clogged, and the waste cutting device becomes large by providing a guide plate for discharging the waste, resulting in an increase in cost.
The present invention is intended to solve these problems.
[0004]
[Means for Solving the Problems]
The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
According to the first aspect of the present invention, in the waste cutter apparatus disposed at the rear portion of the combine, a spira shaft (5) is horizontally mounted below the low speed rotating shaft (6) and the high speed rotating shaft (2), and the spira shaft (5) A spiral spiral wound in the opposite direction is provided on the top of the center, and the cutting spear is sent to the stock side and the tip side. The spira on the tip side is a large-diameter spira (15). A cover that surrounds the front half of the outer periphery of the large-diameter spira (15) in a side view at a portion corresponding to the culm head side of the large-diameter spira (15), with the stock-side spira as a small-diameter spira (18) A body (14) is disposed .
According to a second aspect of the present invention, in the cutting rod discharge mechanism of the discharging cutter device according to the first aspect, a constant gap (L) is formed between the large-diameter spira (15) and the cover body (14). is there.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described.
FIG. 1 is a left side view of the waste cutter apparatus of the present invention, FIG. 2 is a right side view, FIG. 3 is a rear sectional view, FIG. 4 is a perspective view of a spira part, and FIG. FIG. 6 is a diagram for explaining the switching of the locking points.
[0006]
1 and 2, the cutter device C disposed at the rear of the combine is provided with a switching plate 12 on the upper side, and the switching plate 12 is provided with a pivot shaft at the rear side end, and is remote from the shaft as a center. It is provided so that it can be switched by operation. When cutting the waste, it is turned upward to open the upper part of the cutter device C. When the waste is released as it is or tied, it is turned downward. And close. In the cutter device C, the low-speed rotating shaft 6 and the high-speed rotating shaft 2 are horizontally mounted in parallel so as to face each other, and a cutting rod is diffused and discharged below the low-speed rotating shaft 6 and the high-speed rotating shaft 2. A spira shaft 5 to which the spira 15 and 18 are fixed is horizontally mounted on the side plate 30.
[0007]
After the threshing, the waste is conveyed backward by the waste chain and sent to the upper portion of the cutter device C. When cutting the waste, the waste is guided by the switching plate 12 so that the waste is parallel to the low-speed rotating shaft 6. Of the fixed low-speed rotary blades 19, 19, and the large-diameter high-speed rotary blades 20, 20... And the small-diameter high-speed rotary blades 21, 21. The cutting rods cut by the rotation and dropped below the rotary blade are transported and diffused by the rotation of the spirals 15 and 18 fixed on the spiral shaft 5 and discharged.
[0008]
In the waste cutter apparatus C, as shown in FIGS. 1 and 3, the input pulley 1 and the drive sprocket 3 are fixed on one side of the high-speed rotating shaft 2, and the gear 7 on the same side on the low-speed rotating shaft 6. However, sprockets 16 are respectively fixed on the same side of the spiral shaft 5. Further, a counter shaft 24 protrudes rotatably from the side plate of the cutter device C on the same side, and a gear 8 and a sprocket 9 that mesh with the gear 7 are fixed on the counter shaft 24. A chain 4 is wound between the drive sprocket 3, the sprocket 16, and a sprocket 9 fixed to the counter shaft 24, and drives the high speed shaft 2 and the spiral shaft 5 from the input pulley 1. The low speed shaft 6 is driven at a low speed by meshing with the gear 7 having a diameter larger than that of the gear 8 fixed to the counter shaft 24 and rotating in reverse.
[0009]
3, a plurality of low-speed rotary blades 19, 19... And star wheels 22, 22... Are alternately fixed on the low-speed shaft 6 at regular intervals. Further, a plurality of large-diameter high-speed rotary blades 20, 20... Are fixed to the high-speed rotary shaft 2, and a small diameter is provided between the large-diameter high-speed rotary blades 20, 20. The high-speed rotary blades 21... Are fixed one by one or plural, and the star wheels 22, 22... Are arranged between the large-diameter high-speed rotary blade 20 and the small-diameter high-speed rotary blade 21 or between the small-diameter high-speed rotary blades 21. One piece is fixed between each.
[0010]
Further, both sides of the low-speed rotation shaft 6 are rotatably supported by support arms 25 and 25, a lower portion of the left support arm 25 is rotatably supported by the counter shaft 24, and the right support arm 25 is shown in FIG. As shown in FIG. 1, the low-speed shaft 6 is supported by the support shaft 13 and is rotatably supported between the support arms 25 and 25. However, the counter shaft 24 and the support shaft 13 are in concentric positions. Then, as shown in FIG. 6, rotating frames 26 and 26 are further extended upward from the support arms 25 and 25, and the rotating frames 26 and 26 are connected by a lever shaft 10a. At the end of the shaft 10a, a waste cutting length switching lever 10 is fixed. With the waste cutting length switching lever 10, the low-speed rotating shaft 6, the support frames 25 and 25, and the rotating frames 26 and 26 are connected. The support shaft 13 is pivotable.
[0011]
Further, as shown in FIG. 6, a locking tool fulcrum 27 protrudes from the side plate 30 of the cutter device C, and the lever locking tool 11 is pivotally supported by the locking tool fulcrum 27. A first locking recess 28a and a second locking recess 28b are provided on one side of the first locking recess 28a and the second locking recess 28b at predetermined intervals in the longitudinal direction. It can be engaged. A spring 29 is locked to the other side of the lever lock 11 and the first locking recess 28a and the second locking recess 28b are biased in the engaging direction. The side plate of the cutter device C is provided with an opening through which the low-speed rotation shaft 6 can rotate around the counter shaft 24.
[0012]
By configuring in this way, the excision cutting length switching lever 10 can be rotated to change the position where the lever shaft 10a and the lever locking tool 11 are locked, whereby the position of the low speed rotating shaft 6 is changed. It is set as the structure which can be changed. That is, as shown in FIG. 6, when the lever shaft 10 a of the rejection cutting length switching lever 10 is locked by the first locking recess 28 a, the low-speed rotary blade 19 and the large-diameter high-speed rotary blade 20 are seen in the side view of the cutter device C. As shown in FIG. 3, the waste is cut at intervals of the large-diameter high-speed rotary blades 20, 20... And released into the field as a relatively long cut.
[0013]
Then, the lever locking tool 11 is rotated about the locking tool fulcrum 27 to release the engagement, the waste cutting length switching lever 10 is rotated, and the lever shaft 10a is engaged with the second locking recess 28b. When stopped, the low-speed rotary shaft 6 and the high-speed rotary shaft 2 are closer to each other than when locked by the first locking recess 28a, and the low-speed rotary blade 19, the large-diameter high-speed rotary blade 20 and the small-diameter high-speed rotation are viewed from the side of the cutter device C. When the blade 21 overlaps and the cutter device C is driven, the blade 21 is cut at an interval between the large-diameter high-speed rotary blade 20 and the small-diameter high-speed rotary blade 21, and is cut relatively short and released to the field. Further, in order to change the cutting length, the lever locking tool 11 is rotated to release the rejection cutting length switching lever 10, and then the rejection cutting length switching lever 10 is moved from the second locking recess 28b. What is necessary is just to move to the 1st latching recessed part 28a, and to latch the exclusion cutting length switching lever 10 with the lever latching tool 11 again, and a favorite cutting length can be selected.
[0014]
Further, as shown in FIG. 3, the spiral shaft 5 laid horizontally below the low-speed rotation shaft 6 and the high-speed rotation shaft 2 has a stocker side (on the left side) with a substantially half position of the spiral shaft 5 as a boundary. ) And a large-diameter spira 15 are fixed on the tip side (right side), and the large-diameter spira 15 and the small-diameter spira 18 are twisted in opposite directions. Accordingly, by rotating the spira shaft 5, the small-diameter spira 18 conveys the cutting bar on the stock side to the left side (stock side), and the large-diameter spira 15 conveys the cutting bar to the right side (point side). Thus, it is configured such that it can be diffused and diffused in a very wide range and uniformly.
[0015]
The pitch of the large-diameter spira 15 is longer than the pitch of the small-diameter spira 18 so that the cutting spear on the tip side with a volume can be transferred faster and diffusion can be performed efficiently.
In addition, the small-diameter spiraler 18 and the large-diameter spiraler 15 are configured so as to convey the cutting rods to the stock side and the tip side, respectively, when the spiral shaft 5 rotates counterclockwise when viewed from the left side of the cutter device. This is because if the rotation is reversed in the present embodiment, the number of gears and the like increase and the structure becomes complicated, resulting in an increase in cost.
[0016]
Further, as shown in FIGS. 2, 3, and 4, in the portion corresponding to the spear tip side of the spira fixed to the spira shaft 5, that is, in the portion where the large-diameter spira 15 is located, the main body side of the outer periphery of the spira in a side view. The cover body 14 formed in a substantially arc shape that surrounds the front and the lower side of the large-diameter spira 15 is disposed approximately half, so that the cutting rod can be efficiently transferred without being scattered and falling during the transfer. Yes. In addition, a bearing cover 23 is attached to the tip side bearing portion of the spira shaft 5 in order to prevent the cutting rod transferred to the tip side from being wound or stuck on the bearing portion of the spira shaft 5.
[0017]
In this way, the cut stock on the stock side with a volume is transported while being gradually dropped to the stock side, and is diffused and released also to the stock source side transported to the tip side by the waste chain. Further, the cutting spear on the tip side without volume is collected as much as possible by the large-diameter spira 15 and the cover body 14 and is discharged from the rear opening portion so that it can be discharged substantially equally to the left and right.
[0018]
Further, if the gap between the cover body 14 and the large-diameter spira 15 is too small, the cutting rod is easily clogged, and if the gap is too large, the transfer efficiency of the cutting rod decreases. In the meantime, a constant gap L is formed as shown in FIG. The value of the gap L is preferably about 25 mm to 30 mm.
[0019]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
According to the first aspect of the present invention, in the waste cutter apparatus disposed at the rear portion of the combine, the spira shaft 5 is horizontally mounted below the low-speed rotating shaft 6 and the high-speed rotating shaft 2, and the approximate center is placed on the spira shaft 5. As a boundary, it is configured to provide a spiral wound in the opposite direction, and to send the cutting shears to the stock side and the tip side. The spira on the tip side is a large-diameter spira 15 and the spira on the stock side is a small-diameter spira. 18 so that the cutting rod transport direction of the small-diameter spira 18 on the stock side and the large-diameter spira 15 on the tip side is reversed, that is, the cutting rod on the stock side is further to the stock side, and the cutting rod on the tip side is cut. As a result of being configured to be transported to the tip side, the excretion can be diffused and discharged to the field in a very wide range and uniformly.
In addition, since the small-diameter spira 18 is fixed on the stock side and the large-diameter spira 15 is fixed on the tip side, the cutting spear on the tip side is more transferred and diffusion is efficient. As a result, it was possible to make the diffusion state of the cut straw on the strain side and the cut straw on the tip side uniform.
[0020]
Further, since the cover body 14 surrounding the front half of the outer periphery of the large-diameter spira 15 in a side view is disposed in the corresponding portion of the large-diameter spira 15 on the side of the tip of the spearhead, the cutting folds are scattered on the combine side. It can be prevented. In addition, the cutting punch that has been cut and dropped from the cutting blade is immediately transferred to the tip side. Furthermore, the cutting rod transporting action of the large-diameter spira 15 and the cutting rod holding action of the cover body 14 have a synergistic effect, and the spreading of the cutting rod can be performed efficiently.
Further, with this configuration, the cutting rod can be efficiently diffused without adding a large device, so that the cost can be reduced.
[0021]
According to the second aspect of the present invention , the constant gap L is formed between the large-diameter spirer 15 and the cover body 14, so that the transfer and diffusion can be efficiently carried out without clogging the cutting rod.
[Brief description of the drawings]
FIG. 1 is a left side view of a waste cutter apparatus of the present invention.
FIG. 2 is a right side view of the same.
FIG. 3 is a rear sectional view of the same.
FIG. 4 is a perspective view of a spira part.
FIG. 5 is a view showing a gap formed between the spira and the cover body.
FIG. 6 is a diagram for explaining switching of locking points.
[Explanation of symbols]
C Exhaust Cutter Device 2 High Speed Rotating Shaft 5 Spiral Shaft 6 Low Speed Rotating Shaft 14 Cover Body 15 Large Diameter Spira 18 Small Diameter Spira 19 Low Speed Rotary Blade 20 Large Diameter High Speed Rotary Blade 21 Small Diameter High Speed Rotary Blade

Claims (2)

In the waste cutter apparatus disposed at the rear part of the combine, a spira shaft (5) is placed in parallel under the low-speed rotation shaft (6) and the high-speed rotation shaft (2), and is substantially above the spira shaft (5). With the center as the boundary, a spiral spiral wound in the opposite direction is provided, and the cutting spear is sent to the stock side and the tip side. The tip side spira is a large-diameter spira (15). Is a small-diameter spira (18), and a cover body (14) surrounding the front half of the outer circumference of the large-diameter spira (15) in a side view is disposed at the corresponding part of the large-diameter spira (15). A cutting rod discharging mechanism of the discharging cutter device, characterized in that it is provided . 2. A cutter according to claim 1, wherein a constant gap (L) is formed between the large-diameter spira (15) and the cover body (14). The cutting rod discharge mechanism of the device.

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