harvester

Abstract

To provide a harvester that is improved in workability relating to a grass dividing body.SOLUTION: A harvester 1 includes: a reaping part 3 and a grass dividing body 16. The reaping part 3 has a reaping width in a machine body transverse direction. The grass dividing body 16 is positioned in both end parts of the reaping width and divides crop plants into a reaping object and a non-reaping object. The grass dividing body 16 includes a body part 30 and a lower grass dividing body 40. The lower grass dividing body 40 can project and retreat relative to a lower side of the body part 30. The lower grass dividing body 40 preferably includes a plate-like part 41 and a guide part 43. The guide part 43 is fitted to the body part 30 to guide slide movement of the plate-like part 41.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a harvester. [Background technology]

[0002] The harvester described in Patent Document 1 comprises a cutting unit and a grass dividing body (divider). The cutting unit has a cutting width in the width direction of the machine body. The cutting body is located on both sides of the cutting width and divides the crop into cutting targets and non-cut targets. The cutting body comprises a divider body and a bottom partition. The bottom partition is detachably attached to the underside of the divider body. When the bottom partition is attached to the divider body, most of the space formed below the divider body is closed, thereby reducing the amount of lodged crop left uncut. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-51164 Summary of the Invention [Problem to be solved by the invention]

[0004] In the harvester described in Patent Document 1, the work of attaching and detaching the bottom divided body to and from the divider body is complicated.

[0005] An object of the present invention is to provide a harvester with improved workability in relation to grass segments. [Means for solving the problem]

[0006] The harvester of the present invention comprises a cutting unit and a plant dividing body. The cutting unit has a cutting width in the width direction of the machine body. The plant dividing body is located at both ends of the cutting width and divides the crop into cutting targets and non-cutting targets. The plant dividing body has a main body and a lower plant dividing body. The lower plant dividing body can move in and out from below the main body. [Effects of the Invention]

[0007] According to the present invention, a harvester is provided which has improved workability with respect to grass segments. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a left side view of the harvester according to the embodiment. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] This is an enlarged left side view showing the first state of the plant body. [Figure 5] An enlarged left side view showing the second state of the plant body. [Figure 6] FIG. 10 is an enlarged left side view showing the first state of a plant body according to another embodiment. [Figure 7] An enlarged left side view showing the second state of the plant body. [Figure 8] FIG. 10(a) is an enlarged left side view showing a first state of a divided plant body according to yet another embodiment, and FIG. 10(b) is an enlarged back view showing the first state of the divided plant body. [Figure 9] (a) is an enlarged left side view showing the second state of the divided plant body, and (b) is an enlarged back view showing the second state of the divided plant body. [Figure 10] FIG. 4 is a right side view showing the power transmission mechanism of the reaping unit. [Figure 11] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals, and description thereof will not be repeated. In the drawings, an X-axis, a Y-axis, and a Z-axis, which are orthogonal to each other, are shown. The X-axis and the Y-axis are parallel to the horizontal plane, and the Z-axis is parallel to the vertical direction.

[0010] First, the basic structure of a harvester 1 according to an embodiment will be described with reference to Figures 1 to 3. Figure 1 is a left side view of the harvester 1. Figure 2 is a right side view of the harvester 1. Figure 3 is a plan view of the harvester 1. The harvester 1 is, for example, a combine harvester.

[0011] The harvester 1 includes a traveling body 1a supported by a pair of left and right tracks 2 made of rubber crawlers.

[0012] A reaping unit 3 that harvests and collects rice and other grain stalks is connected to the front of the traveling body 1a. The harvesting target of the reaping unit 3 is not limited to rice, but also wheat, soybeans, corn, etc. A threshing unit 9 that threshes the harvested grain stalks supplied from the reaping unit 3 is mounted on the left side of the traveling body 1a.

[0013] The reaping section 3 is equipped with a grain header 12 in the shape of a horizontally long bucket. A raking auger 13 is rotatably supported inside the grain header 12. A raking reel 14 is disposed above the front of the raking auger 13. A clipper-shaped cutting blade 15 is disposed at the front of the grain header 12. Grass dividing bodies 16 are provided on both the left and right sides of the front of the grain header 12.

[0014] The reaping unit 3 has a reaping width in the width direction of the machine body. The grass dividing bodies 16 are located on both sides of the reaping width and divide the crop into reaping and non-reaping areas. That is, the tips of the unharvested culms between the left-hand grass dividing body 16 and the right-hand grass dividing body 16 are raked in by the raking reel 14, and the bases of the unharvested culms are cut by the cutting blade 15. The reaped culms cut by the cutting blade 15 are collected by the rotation of the raking auger 13 and fed into the threshing unit 9.

[0015] An operation unit 5, on which an operator sits, is mounted on the front right side of the traveling body 1a. A grain tank 6, which stores grains threshed by the threshing unit 9, is mounted on the right side of the traveling body 1a and behind the operation unit 5.

[0016] Behind the grain tank 6, a vertical feed auger 62 is connected to the bottom of the grain tank 6. The vertical feed auger 62 extends along the Z-axis direction.

[0017] A grain discharge conveyor 8 is provided above the grain tank 6 and the threshing section 9 to discharge the grains fed by the vertical feed auger 62 to the outside.

[0018] Next, the divided plant body 16 will be described with reference to Figures 1 to 5. Figure 4 is an enlarged left side view showing the divided plant body 16 in a first state. Figure 5 is an enlarged left side view showing the divided plant body 16 in a second state. As shown in Figures 1 and 2, the divided plant body 16 has a cover body 20. Figures 4 and 5 show the state in which the cover body 20 has been removed.

[0019] 4 and 5, the plant segment 16 has a main body 30 and a lower plant segment 40. The lower plant segment 40 can move in and out from the underside of the main body 30.

[0020] The main body 30 has a bent portion 31 made of a plate material. The bent portion 31 forms a space whose upper side is closed.

[0021] The lower dividing body 40 has a sliding structure for extending and retracting. Specifically, the lower dividing body 40 has a plate-shaped portion 41, a flange portion 42, a guide portion 43, and a lock pin 44.

[0022] The plate-shaped portion 41 is a plate material having a substantially parallelogram-shaped outer shape. The flange portion 42 is a thick portion provided on the upper edge portion of the plate-shaped portion 41. The plate-shaped portion 41 has a first hole 41a and a second hole 41b. The first hole 41a is located below the second hole 41b. A third hole may be further formed between the first hole 41a and the second hole 41b.

[0023] The guide portion 43 is attached to the main body portion 30 so as to form a gap between it and the main body portion 30, and guides the sliding movement of the plate-shaped portion 41. The flange portion 42 prevents the plate-shaped portion 41 from falling off the guide portion 43 when the plate-shaped portion 41 slides.

[0024] As shown in Figure 4, when the divided plant body 16 is in the first state, the plate-shaped part 41 protrudes from the main body part 30. The lock pin 44 passes through a hole formed in the guide part 43 and the second hole 41b of the plate-shaped part 41. This fixes the divided plant body 16 in the first state.

[0025] As shown in Figure 5, in the second state of the divided plant body 16, the plate-shaped portion 41 retracts into the main body portion 30. The lock pin 44 passes through a hole formed in the guide portion 43 and the first hole 41a of the plate-shaped portion 41. This fixes the second state of the divided plant body 16. When the plate-shaped portion 41 slides upward, the bending portion 31 of the main body portion 30 restricts the sliding movement of the plate-shaped portion 41, thereby preventing the plate-shaped portion 41 from falling off the guide portion 43 upward.

[0026] In addition, in the divided plant body 16 in the first state shown in Fig. 4, the state of the divided plant body 16 changes from the first state to the second state (Fig. 5) when the plate-shaped part 41 moves in the first sliding direction A1. On the other hand, in the divided plant body 16 in the second state shown in Fig. 5, the state of the divided plant body 16 changes from the second state to the first state (Fig. 4) when the plate-shaped part 41 moves in the second sliding direction A2. The second sliding direction A2 is the opposite direction to the first sliding direction A1.

[0027] Next, another embodiment of the divided plant body 16 will be described with reference to Figures 1 to 3, 6, and 7. Figure 6 is an enlarged left side view showing the divided plant body 16 in a first state. Figure 7 is an enlarged left side view showing the divided plant body 16 in a second state.

[0028] 6 and 7, the plant segment 16 has a main body 30 and a lower plant segment 40. The lower plant segment 40 can move in and out from the underside of the main body 30.

[0029] The lower grass portion 40 has a pivotable structure for extending and retracting. Specifically, the lower grass portion 40 has a plate-shaped portion 41 and a support portion 45.

[0030] The plate-shaped portion 41 is a plate material having an outer shape of a substantially parallelogram. The support portion 45 not only supports the plate-shaped portion 41 rotatably with respect to the main body portion 30, but also can fix the posture of the plate-shaped portion 41.

[0031] In addition, the support portion 45 may be structured to be assembled so that the plate-shaped portion 41 cannot be easily detached from the main body portion 30. In this case, the plate-shaped portion 41 can be rotated relative to the main body portion 30 to change the position of the plate-shaped portion 41, while preventing the plate-shaped portion 41 from falling off the main body portion 30.

[0032] 6, when the divided plant body 16 is in the first state, the plate-shaped part 41 protrudes from the main body part 30. The support part 45 fixes the divided plant body 16 in the first state.

[0033] As shown in Figure 7, when the divided plant body 16 is in the second state, the plate-shaped part 41 retreats into the main body part 30. The support part 45 fixes the divided plant body 16 in the second state.

[0034] In addition, in the divided plant body 16 in the first state shown in Figure 6, the plate-shaped part 41 rotates in the first rotation direction B1, causing the state of the divided plant body 16 to change from the first state to the second state (Figure 7). On the other hand, in the divided plant body 16 in the second state shown in Figure 7, the plate-shaped part 41 rotates in the second rotation direction B2, causing the state of the divided plant body 16 to change from the second state to the first state (Figure 6). The second rotation direction B2 is the opposite direction to the first rotation direction B1.

[0035] Next, still another embodiment of the divided plant 16 will be described with reference to Figures 1 to 3, 8, and 9. Figure 8(a) is an enlarged left side view showing the divided plant 16 in a first state. Figure 8(b) is an enlarged back view showing the divided plant 16 in the first state. That is, Figure 8(b) shows the opposite side of the divided plant 16 in Figure 8(a). Figure 9(a) is an enlarged left side view showing the divided plant 16 in a second state. Figure 9(b) is an enlarged back view showing the divided plant 16 in the second state. That is, Figure 9(b) shows the opposite side of the divided plant 16 in Figure 9(a).

[0036] 8(a) and 9(a), the plant segment 16 has a main body 30 and a lower plant segment 40. The lower plant segment 40 can move in and out from the underside of the main body 30.

[0037] The lower plant segment 40 has a sliding extension / retraction structure that is different from the sliding extension / retraction structure described with reference to Figures 4 and 5. Specifically, as shown in Figures 8(b) and 9(b), the lower plant segment 40 has a plate-shaped portion 41, a protrusion 41c, and a fixing portion 46. The main body 30 also has an elongated hole 30a.

[0038] The plate-shaped portion 41 is a plate material having an outer shape of a substantially parallelogram. The protrusion 41c protrudes, for example, perpendicularly from the plate-shaped portion 41. In the examples of FIGS. 8(b) and 9(b), the protrusion 41c extends in the positive direction of the Y-axis. The protrusion 41c is, for example, a substantially cylindrical pin and has a screw portion (external thread). The protrusion 41c passes through the elongated hole 30a. The elongated hole 30a extends along the first sliding direction A1 and the second sliding direction A2.

[0039] As shown in Figures 8(a) and 8(b), in the first state of the divided plant body 16, the plate-shaped portion 41 protrudes from the main body portion 30. The fixing portion 46 fixes the plate-shaped portion 41 to the main body portion 30, for example, by connecting to a protrusion 41c that penetrates the long hole 30a at the lower end of the long hole 30a. The fixing portion 46 has, for example, a screw portion (female thread). For example, the fixing portion 46 fixes the plate-shaped portion 41 to the main body portion 30 by screwing onto the protrusion 41c. This fixes the first state of the divided plant body 16.

[0040] As shown in Figures 9(a) and 9(b), in the second state of the divided plant body 16, the plate-shaped part 41 retreats into the main body part 30. Then, the fixing part 46 fixes the plate-shaped part 41 to the main body part 30, for example, by connecting to the protrusion 41c that penetrates the long hole 30a at the upper end of the long hole 30a. This fixes the second state of the divided plant body 16.

[0041] In the divided plant body 16 in the first state shown in FIG. 8, the plate-shaped portion 41 moves in the first sliding direction A1 with the protrusion 41c inserted into the slot 30a, thereby changing the state of the divided plant body 16 from the first state to the second state (FIG. 9). In this case, the protrusion 41c moves within the slot 30a from the lower end to the upper end of the slot 30a. On the other hand, in the divided plant body 16 in the second state shown in FIG. 9, the plate-shaped portion 41 moves in the second sliding direction A2 with the protrusion 41c inserted into the slot 30a, thereby changing the state of the divided plant body 16 from the second state to the first state (FIG. 8). In this case, the protrusion 41c moves within the slot 30a from the upper end to the lower end of the slot 30a.

[0042] According to the embodiment described above with reference to FIGS. 1 to 9, a harvester 1 with improved workability with respect to the divided grass bodies 16 is provided.

[0043] The reaping unit 3 will now be described in detail with reference to Figures 1 to 3, 10 and 11. Figure 10 is a right side view showing the power transmission mechanism of the reaping unit 3. Figure 11 is a plan view of the reaping unit 3.

[0044] As shown in FIGS. 1 to 3, the harvester 1 has a reaping unit 3 attached to the front end of a self-propelled traveling body 1a so as to be able to move up and down.

[0045] The traveling machine body 1a has a machine frame 11 installed between a pair of left and right traveling sections 10, 10. On the left side of the machine frame 11, a threshing section 9 that threshes the tips of the harvested stalks and a sorting section 17 that sorts the threshed grain are arranged in upper and lower stages, and behind these are a dust outlet 18 that opens toward the rear and discharges straw and other debris outside the machine into the field. On the right side of the machine frame 11, a driving operation section 5 that performs driving operations is arranged at the front, and behind it is a grain tank 6 that stores the grain (clean grain) sorted by the sorting section 17. Below the rear of the driving operation section 5, an engine 22 and other components are arranged as a power source.

[0046] As shown in Figures 1 to 3, 10 and 11, the harvesting section 3 comprises a rectangular cylindrical feeder house 19 with its axis oriented in the fore-and-aft direction, a horizontally elongated bucket-shaped grain header 12 connected to the front end opening 50 of the feeder house 19, a clipper-shaped cutting blade 15 arranged at the front lower end edge of the grain header 12, a pair of left and right grass dividing bodies 16, 16 formed by extending forward from the front left and right sides of the grain header 12, and a raking reel 14 arranged above the front of the grain header 12.

[0047] The rear end of the feeder house 19 pivots a reaping input shaft 65 with its axis facing left and right to the front of the threshing unit 9, and a lifting cylinder 24 is interposed between the underside of the feeder house 19 and the front end of the body frame 11. By extending and retracting the lifting cylinder 24, the reaping input shaft 65 serves as a lifting fulcrum, allowing the reaping unit 3 to be raised and lowered.

[0048] A supply conveyor 23 is also provided within the feeder house 19, and the sweeping auger 13 is mounted within the grain header 12 so as to be rotatable about a left-right axis. The sweeping reel 14 is mounted between the tips of a pair of left and right reel support arms 24a, 24a whose base ends are pivotally supported on the grain header 12 so as to be rotatable about a left-right axis, and rotates on the tips of the standing stalks while continuously sweeping them into the sweeping auger 13. The operating parts of each of the above-mentioned parts are linked to the engine 22 via respective linkage mechanisms so as to operate appropriately.

[0049] In the harvester 1 configured in this manner, the reaping unit 3 is raised to the desired height above ground (the reaping position for the standing culms) in the field, and the traveling body 1a is traveled in this state. In this way, the standing culms are separated by the separating bodies 16, 16, and the tips of the separated culms are raked in by the raking reel 14, while the cutting blade 15 reaps the culms from the middle to the tip side. The tip side of the culms reaped at the desired reaping position is raked into the grain header 12 by the raking auger 13 and supplied to the threshing unit 9 through the feeder house 19 by the supply conveyor 25. The tip side of the culms supplied to the threshing unit 9 are threshed by the threshing unit 9, and the grains threshed in the threshing unit 9 are sorted by the sorting unit 17. The grains (clean grains) that have been sorted in the sorting section 17 are stored in the grain tank 6. The grains stored in the grain tank 6 are appropriately transported outside the machine by the grain discharge conveyor 8. Then, straw dust and the like that have been separated from the grains in the threshing section 9 are discharged from the dust outlet section 18 to the field outside the machine.

[0050] In the harvesting section 3, as shown in Figures 1, 10, and 11, the raking auger 13 has a rotating support shaft 27 with its axis oriented in the left-right direction suspended between the left and right side walls 21b, 21a of the grain header 12 via bearings or other bearings, and a cylindrical auger body 28 attached concentrically to the outer periphery of the rotating support shaft 27.

[0051] A left spiral conveying piece 53 having a spiral blade shape protrudes from the left side of the outer peripheral surface of the auger body 28 to transport the harvested stalks to the right side, while a right spiral conveying piece 54 having a spiral blade shape protrudes from the right side of the outer peripheral surface of the auger body 28 to transport the harvested stalks to the left side, and a harvested stalk collecting space 51 is formed between the conveying end of the left spiral conveying piece 53 and the conveying end of the right spiral conveying piece 54, positioned just before the front end opening 50 of the feeder house 19.

[0052] In the harvested stalk gathering space 51, a plurality of pairs of fingers 33, which are pairs of straight rod-shaped raking protrusions on the left and right, are arranged at regular intervals around the circumference of the auger body 28. A retraction mechanism 32 is arranged within the auger body 28, and the base ends of the fingers 33 are interlocked and connected to the retraction mechanism 32 so that the fingers 33 intermittently retract from the auger body 28 in a radial direction (the radial direction of the auger body 28).

[0053] The retraction mechanism 32, in conjunction with the rotational movement of the auger body 28, causes the fingers 33 to protrude from the auger body 28 at the upper and front periphery of the auger body 28, and causes the fingers 33 to retract into the auger body 28 at the lower and rear periphery of the auger body 28.

[0054] The fingers 33 protrude from the rotating auger body 28 and perform a crosswise sweeping action on the harvested stalks collected in the harvested stalk collection space 51, while rotating and transporting the harvested stalks rearward, so that the harvested stalks are raked into the feeder house 19 through the front end opening 50. The sweeping auger 13 rotates clockwise in Figure 10, which is a right side view. The protruding width of the fingers 33 from the circumferential surface of the auger body 28 is approximately the same as the protruding width of the left and right spiral conveying pieces 53, 54 from the circumferential surface of the auger body 28.

[0055] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments and can be embodied in various forms without departing from the spirit and scope of the present invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above embodiments. For example, some components may be omitted from all components shown in the embodiments. The drawings mainly show each component in a schematic manner for ease of understanding, and the number of each component shown may differ from the actual number due to the convenience of drawing. Furthermore, the components shown in the above embodiments are merely examples and are not particularly limited, and various modifications are possible without substantially departing from the effects of the present invention. [Industrial Applicability]

[0056] The present invention can be used in the field of harvesters. [Explanation of symbols]

[0057] 1. Harvesting Machine 3 Reaping part 16 minute plant 30 Main body 40 Lower branching plant 41 Plate-shaped part 42 Tsuba 43 Information Department 45 Support part

Claims

1. A reaping unit having a reaping width in the width direction of the machine body; A grass dividing body located at both side ends of the reaping width and dividing the crop into a reaping target and a non-reaping target; Equipped with The plant is a main body; A lower grass body that can move forward and backward from the cutting blade side of the main body portion; A harvester having:

2. The harvester according to claim 1 , wherein the lower grass section has a sliding structure for entering and leaving.

3. The lower part of the plant is A plate-shaped portion; a guide portion attached to the main body portion and guiding the sliding movement of the plate-shaped portion; 3. The harvester of claim 2, comprising:

4. The harvester according to claim 3, wherein the lower grass portion further has a flange portion provided on an upper edge portion of the plate-shaped portion to prevent the plate-shaped portion from falling off the guide portion.

5. The harvester according to claim 3 or 4, wherein the main body restricts upward sliding movement of the plate-shaped portion.

6. The harvester according to claim 1 , wherein the lower grass division body has a pivotable structure for entering and leaving.

7. The lower part of the plant is A plate-shaped portion; a support portion that rotatably supports the plate-shaped portion relative to the main body portion; 7. The harvester of claim 6, comprising:

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