JP4066094B2 - Seedling planting machine - Google Patents

Description

  The present invention relates to a seedling planting machine in which the width of a seedling transplanted in one stroke is wider than the width of a traveling vehicle body.

A large seedling planting machine is configured to mount a seedling planting device having a wide width after a traveling vehicle body having a narrow width so as to transplant seedlings in multiple lines in one stroke. For this reason, the lateral end of the seedling planting device significantly protrudes from the traveling vehicle body, and storage and transportation are inconvenient (see Patent Document 1).
JP-A-6-245605

  Various proposals have been made to solve this problem, but it is still insufficient.

In order to solve the above-mentioned problems, the present invention has a seedling platform (29) inclined forward and extending under the rear end of the seedling platform (29) and has a planting claw (38) at the rear. The provided seedling planting frame (33), the side frame (35) disposed on the left and right side portions of the seedling planting frame (33) and provided with planting claws (38) at the rear, and the seedling planting frame (33) ) and a plurality of floats (57) are provided on a substrate was NaeUe device (2) seedling planting machine mounted on the vehicle body (1) a side-by-side below the side frames (35), seedling mounting table (29 ) Wall plate (30-2, 30-3, 30-8, 30-9) is provided with a first shaft (31) at the upper end thereof, and the outer part of the seedling mounting table (29) is placed on the seedling mounting table (29). ) rotates to said first axis (31) around along the inclined with a folded over seedlings loading table (29) construction of, NaeUe frame A depth adjusting shaft (48) provided at the lower front end of the frame (33) and a side adjusting shaft (50) provided at the lower portion of the side frame (35) and having an axis overlapping the depth adjusting shaft (48). ), The spacing between the rear end of the plurality of floats (57) and the seedling planting frame (33) / side frame (35) is changed to adjust the seedling implantation depth, The side adjustment shaft (50) can be separated from the depth adjustment shaft (48) and protruded obliquely upward from the rear ends of the seedling planting frame (33) and the side frame (35). A support frame (39) is provided, and an inner sleeve (40) protrudes outward from an upper end of a pair of opposing support frames (39), and an outer sleeve (41) protrudes inward. ) And the end of the outer sleeve (41) are different from the first shaft (31). The side frame (35) is rotated around the second axis (42) by connecting through the second axis (42) along the inclination of the table (29), and the seedling planting frame is rotated. (33) A seedling transplanter configured to be folded on top was used.

Therefore, if the seedling placing table (29) and the side frame (35) of the seedling planting device (2) are in the seedling transplanting operation state, the side adjusting shaft (50) is connected to the depth adjusting shaft (48). The seedling planting frame (33) and the planting claws (38) provided at the respective rear portions of the side frame (35) disposed on the left and right sides of the seedling planting frame (33) are placed on the seedling mounting table (29) . The seedlings are transplanted to the field, and in a single stroke, transplanting of a plurality of seedlings that are significantly wider than the width of the traveling vehicle body (1) can be performed. Further, when rotated depth adjustment shaft (48), the depth adjustment shaft (48) and the deep-adjusting shaft linked side adjustment shaft to (48) and (50) is turning operation, the float (57) The distance between the rear end portion and the seedling planting frame (33) / side frame (35) is changed to adjust the planting depth of the seedling.

On the other hand, when the seedling planting machine is stored in the warehouse or moved, the side adjustment shaft (50) is separated from the depth adjustment shaft (48), and the outer portion of the seedling mounting base (29) is moved.該苗the platform first axis (31) along the slope (29) folded by rotating around over the seedling mounting table (29), NaeUe frame - arm (33) and side frame - arm (35) An inner sleeve (40) and an outer sleeve (41) projecting from the upper end of a support frame (39) projecting obliquely upward from the rear end are connected and the first shaft (31) When the side frame (35) is rotated and folded onto the seedling planting frame (33) by the second shaft (42) along the inclination of the seedling mounting platform (29) different from the seedling stand, the seedling is easily obtained. The horizontal width of the planting device (2) is narrowed, and the above storage and movement are easily performed.

  Accordingly, since the side adjustment shaft 50 can be separated from the depth adjustment shaft 48, the outer side portion of the seedling table 29 and the side frame 35 are simply folded, so that the side adjustment shaft 50 can be compactly stored and moved when not in use. This is convenient.

Next, an embodiment of the present invention will be described.
A seedling transplanter 2 is mounted on the traveling vehicle body 1 to form a seedling transplanter.
The traveling vehicle body 1 is configured as follows. A main gear box 4 and a rear wheel gear box 5 are provided before and after the frame 3, and front wheels 6 and 6 and rear wheels 7 and 7 are arranged on the outer sides thereof. The engine 8 is provided on the frame 3, and the power is transmitted to the front wheels 6, 6 and the rear wheels 7, 7 via the transmission in the main gear box 4, and these are rotated on the paddy field. Thus, the traveling vehicle body 1 is made to travel. The cockpit 9 is provided on the engine 8 and the steering handle 11 is provided on the front handle frame 10 so that the front wheels 6 and 6 are steered and the traveling direction of the traveling vehicle body 1 is changed. Yes. The support columns 12, 12 are provided on both sides of the handle frame 10, and five shelves 13, 13,. On each shelf 13, four sheets of spare mat seedlings (or seedling boxes containing mat seedlings) having a size of about 30 cm × 60 cm are placed side by side in the front-rear and left-right directions. Moreover, each shelf 13 can be provided so that right and left may be rotated around the center axis | shaft and folded.

  The auxiliary seat 16 can be configured as shown in FIGS. Since this is not the main point, it is not shown in FIG. That is, the column 14 extends upward from the frame 3 after the cockpit 9, and a pair of rails 15, 15 are fixed horizontally. An auxiliary seat 16 is movably attached to the rails 15 and 15. A rack 17 is provided between the rails 15 and 15, and a pinion of a motor 18 provided in the auxiliary seat 16 bites this. A step 19 projects rearward from the auxiliary seat 16 on which a petal 20 is attached. Then, when an assistant on the auxiliary seat 16 steps on and tilts the petal 20 to the left, the motor 18 rotates and the auxiliary seat 16 moves to the left, and when the petal is tilted to the right, the motor 18 reverses and the auxiliary seat is rotated. 16 is made to move to the right. When the upper seat portion of the auxiliary seat 16 is provided so as to rotate about the vertical axis, the operation of taking a spare mat seedling from the shelf 13 and replenishing it to the seedling mount 29 described later is performed smoothly.

  The support column 21 extends upward from the rear part of the frame 3, and the front and rear ends of a pair of links 22, 22 parallel to the top and bottom are rotatably attached to the rear vertical frame 23. The front end of the hydraulic cylinder 24 is attached to the frame 3, the piston rod 25 extends obliquely upward from this, and the lower end of the arm 26 integral with the upper link 22 is connected to the protruding end. When the oil discharged from the pump is supplied to the hydraulic cylinder 24 by switching the lift valve 82 (FIG. 9), the piston rod 25 protrudes and the vertical frame 23 rises. When the oil returns to the tank, the vertical frame 23 descends. As is well known, the operation of the lift valve 82 is artificially performed by operating the lift lever on the left side of the cockpit 9 and automatically performed by the operation of the sensor float 57 described later. Then, after the vertical frame 23 is lowered by the operation of the lift lever and the sensor float 57 comes into contact with the mud surface, the vertical movement of the tip of the sensor float 57 is automatically performed.

  The seedling planting device 2 is configured as follows. A seedling gear box 27 is swingably attached to the lower part of the vertical frame 23 by a rolling shaft 28. A seedling mount 29 inclined forward is arranged on the seedling gear box 27 and is movably attached to the left and right. The seedling mounting table 29 is divided into ten partitions 29-1, 29-2,... 29-10 by partition walls in the front-rear direction, and the mat seedlings are mounted vertically in each. In addition, the seedling mount 29 has wall plates 30-2, 30-3, 30-8, and 30-9 that are in contact with the sections 29-2 and 29-3 and 29-8 and 29-9 extending upward, respectively. The upper end of each is rotatably provided by shafts 31, 31 along the inclination of the seedling mount 29. When not in use, the sections 29-1 and 29-2 and the sections 29-9 and 29-10 are turned 180 degrees around the shafts 31 and 31 so as to be folded (FIG. 3). An auxiliary base 29a is foldably attached to the front end.

  A pair of sleeves 32, 32 are fixed to the left and right of the seedling gear box 27 (FIGS. 4, 5), and three seedling frames 33, 33, 33 provided in parallel are connected to the rear of the seedling mount 29. Extends below the edge and later. A seedling receiving plate 34 having an L-shaped cross section is attached to the seedling planting frames 33, 33, 33 so as to block the rear end of the seedling mounting base 29. In addition, both sides of the seedling receiving plate 34 are constituted by divided plates 34a, 34a, and are provided so as to be rotatable around the vertical axis (FIG. 3) or detachable with respect to the inner seedling receiving plate 34. A pair of side frames 35, 35 are disposed outside the rear end portions of the left and right seedling planting frames 33, 33, and rotating cases 37, 37 are fixed to both ends of the respective horizontal shafts 36, 36. . A pair of implantation claws 38, 38 are provided on each rotating case 37, and when the rotating case 37 is rotated by the horizontal shaft 36, the planetary gears therein turn and maintain a similar posture and move downward. In the initial stage, one seedling is cut off from the end of the mat seedling protruding from the seedling mount 29 through the seedling receiving opening of the seedling receiving plate 34 or the divided plates 34a, 34a, and transplanted to the field at the lower end. It has become.

  Support frames 39, 39,... Protrude obliquely upward from the rear ends of the left and right seedling planting frames 33, 33 and the side frames 35, 35. The inner sleeves 40, 40 and the outer sleeves 41, 41 protrude outward and inward from the upper ends of the pair of opposing support frames 39, 39,... It rotates around the inclined axes 42, 42,... Along which the side frames 35, 35 are folded up 90 degrees. Specifically, as shown in FIG. 6, a step portion 41 a provided at the inner end of the outer sleeve 41 is provided so as to fit into the outer end of the inner sleeve 40. The shafts 42 and 42 are fixed to the end of the inner sleeve 40, and the inner end portions of the support plates 43 and 43 are rotatably attached thereto. The bolts 44, 44,... Passed through the long holes 43a, 43a,... At the outer ends of the support plates 43, 43 are provided so that the outer sleeve 41 can be moved left and right. When the stoppers 46 and 46 are folded by hanging 46a, the support plates 43 and 43 are drawn to the left. Therefore, the stoppers 46 and 46 are raised to remove the rings 46a and 46a from the hooks 45 and 45, and the outer sleeve 41 is pulled out to remove the stepped portion 41a from the inner sleeve 40, and then the outer sleeve 41 or the side frame. Raise 35. Then, they rotate around the shafts 42 and 42 and are folded. When restored, the inner sleeve 40 and the outer sleeve 41 are firmly fixed and integrated as shown in FIG. A spring 47 (FIG. 4) is provided between the inner sleeve 40 and the outer sleeve 41, and the folded side frames 35, 35 are attracted by this to keep the posture.

  A depth adjusting shaft 48 (FIG. 4) is attached to the lower abdomen of the front end of the seedling planting frame 33, and is rotated by an operator's lever (not shown) operation. A pair of auxiliary frames 49, 49 project forward from the side frames 35, 35, and side adjustment shafts 50, 50 whose axis centers overlap the depth adjustment shaft 48 are rotatably attached thereto. Yes. When the square shafts 51 and 51 are attached to the side adjustment shafts 50 and 50 so as to be movable left and right and move inwardly, the inner ends thereof engage with the outer ends of the depth adjustment shafts 48, respectively. The adjustment shafts 50 and 50 are made to unite. The operating rods 52 and 52 are attached to the side adjustment shafts 50 and 50 so as to be movable left and right, and are connected to the square shafts 51 and 51 by connecting rods 53 and 53. The operating rods 52 and 52 can be pulled out by springs 54 and 54 and turned by knobs 55 and 55, and the inner ends thereof are screwed into nuts 56 and 56 integral with the depth adjusting shaft 48. It is. Therefore, in FIG. 4, when the knob 55 is turned and the operating rod 52 is pulled away from the nut 56, the operating rod 52 is pulled by the spring 54 and moved further outward, and the inner end of the square shaft 51 is the depth adjusting shaft. Apart from the outer end of 48, the side adjustment shaft 50 is separated from the depth adjustment shaft 48. In addition, if this is operated reversely, these will unite | combine like FIG. The folding of the side frames 35, 35 is performed after separating them.

  Five floats 57, 57,... Arranged side by side are arranged under the seedling planting frames 33, 33, 33 and the side frames 35, 35, respectively. Arms 58, 58,... Extend obliquely downward from the depth adjusting shaft 48 and the side adjusting shafts 50, 50, and the respective projecting ends and the rear portions of the floats 57, 57,. When 1 moves forward, it slides on the mud surface while swinging around its horizontal axis. When the depth adjusting shaft 48 rotates, the rear ends of the arms 58, 58,... Move up and down, and the distance between the rear ends of the floats 57, 57,... And the frames 33, 33, 33, 35, 35 changes. The seedling implantation depth is adjusted. The central float 57 becomes a sensor float, and the above-described lift valve 82 is automatically operated by an input from this.

  The power transmission path of the seedling planting device 2 is configured as shown in FIG. That is, the power of the engine 8 is transmitted from the input shaft 59 to the main shaft 60. The power reaches the lead cam shaft 62 via the transmission 61, and the rotation of this causes the horizontal movement bar 63 to reciprocate left and right, so that the seedling table 29 is reciprocated to the left and right. The tooth rings 64, 64, 64 are provided on the main shaft 60, and the tooth rings 65, 65, 65 are fixed to the horizontal shafts 36, 36, 36 of the seedling planting frames 33, 33, 33. 66, 66, 66 are wound. Tooth rings 67, 67 are fixed to the outer lateral shafts 36, 36, and tooth rings 69, 69 are fixed to the inner ends of the inner shafts 68, 68 in the inner sleeves 40, 40, respectively. Chains 70, 70 are wound around. The claws 72a, 72a pushed outward by the springs 71, 71 are provided at the outer ends of the inner shafts 68, 68, and the claws 72b, 72b fixed to the outer shafts 73, 73 in the outer sleeves 41, 41 Biting (Fig. 6). The claws 72a and 72a and the claws 72b and 72b are constituted by shaft couplings 72 and 72 that are separated from each other when the sleeves 41 and 41 move outward. The tooth rings 74, 74 are fixed to the outer ends of the outer shafts 73, 73, the tooth rings 75, 75 are fixed to the outer lateral shafts 36, 36, and a corresponding pair of chains 76, 76 are wound around each other. The horizontal shafts 36, 36,... Are rotated by the rotation of the main shaft 60 so that the rotating cases 37, 37,.

  A resistance rod 77 is provided on the float 57 so as to be driven by a motor 78 with its tip penetrating into mud (FIGS. 7 and 8). The current value 79 of the motor 78 is input to the control device 80, and the vehicle speed value 81 input from the traveling vehicle body 1 is used to determine the hardness of the mud where the float 57 is muddy (FIG. 9). ). The control device 80 outputs to the lift valve 82 by the input from the sensor float 57. When the tip of the sensor float 57 sliding on the mud surface is too high, the control device 80 sends oil to the hydraulic cylinder 24 to raise the seedling planting device 2. If the tip is lowered too much, the oil in the hydraulic cylinder 24 is returned to the tank and the seedling planting device 2 is lowered. When the mud is judged to be “hard” by the judgment of the mud, the sensitivity of the raising / lowering system of the seedling planting device 2 is insensitive, and when the mud is judged to be “soft”, For example, the control target value of the front and rear inclination of the sensor float 57 can be corrected so that the sensitivity of the sensor float 57 becomes sensitive.

  As shown in FIGS. 10 and 11, the cylinder 83 is fixed upward at the rear part of the outer seedling planting frame 33, the outer sleeve 41 is extended inward, and the cylinder 84 is fixed downward at the inner end. Are provided so as to be pivotable. And it is comprised so that rotation in the seedling planting frame 33 may be transmitted to the horizontal axis 36 of the side part frame 35 with the gearwheel, shaft, etc. in cylinder 83,84. Then, when not in use, the outer rotating cases 37, 37, the float 57, etc. rotate around the cylinder 83 and are folded as shown by the chain line in FIG. 10, so that the lateral width of the seedling planting device 2 is narrowed.

Side view of seedling planting machine according to the present invention The plan view Plan view with both ends of the seedling plant folded Plan view of part 1 Part of the transmission mechanism diagram Part of the enlarged cut plan view Plan view of the float The plan view Block circuit diagram of the lifting device Plan view of part of another seedling planting device The side view

Explanation of symbols

1: traveling vehicle body, 2: seedling planting device, 29: seedling mounting table, 30-2 , 30-3 , 30-8 , 30-9: wall plate, 31: shaft, 33: seedling planting frame, 35: side portion Frame: 38: Implanted claw, 39: Support frame, 40: Inner sleeve, 41: Outer sleeve, 42: Shaft, 48: Depth adjustment shaft, 50: Side adjustment shaft, 57: Float

Claims (1)

A seedling stand (29) inclined forward, a seedling planting frame (33) provided with a planting claw (38) at the rear and extending below the rear end of the seedling stand (29); A side frame (35) disposed on the left and right sides of the seedling planting frame (33) and provided with a planting claw (38) at the rear, and laterally below the seedling planting frame (33) and the side frame (35). In a seedling planting machine in which a seedling planting device (2) provided with a plurality of floats (57) arranged on the vehicle body (1) is mounted, the wall plates (30-2, 30-3) of the seedling mount (29) , 30-8,30-9) upper end is provided a first axis (31) of said first shaft outer portion along the slope of該苗mounting base (29) of the seedling mounting table (29) ( 31) Rotating around and folding onto the seedling mount (29), and the depth provided at the lower front end of the seedling planting frame (33) The plurality of floats (57) is provided by adjusting the rotation of a side adjustment shaft (50) provided below the adjustment shaft (48) and the side frame (35) and having an axial center overlapping the depth adjustment shaft (48). The distance between the rear end portion and the seedling planting frame (33) / side frame (35) is changed to adjust the planting depth of the seedling, and the side adjusting shaft (50) is adjusted to the depth adjusting shaft (50). 48), and a support frame (39) projecting obliquely upward from the rear ends of the seedling planting frame (33) and the side frame (35) is provided so as to be opposed to each other. The inner sleeve (40) protrudes outward from the upper ends of the pair of supporting frames (39), the outer sleeve (41) protrudes inward, and the ends of the inner sleeve (40) and the outer sleeve (41) are connected to the first sleeve . The second axis (4) along the inclination of the seedling mount (29) different from the axis (31) of 2) A seedling planting machine configured to be connected via 2) to rotate the side frame (35) around the second axis (42) and fold it onto the seedling planting frame (33).

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