JPH09313006A - Transplanter for simultaneous soil pudding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transplanter for simultaneous soil pudding, excellently rollable, by supporting a pudding apparatus and a planting apparatus on a rolling spindle in a good balance. SOLUTION: This apparatus supports a planting apparatus in an inclining way in the right and left direction on a rolling spindle 31 installed at the rear part of a traveling machine body 1. A pudding apparatus 5 for carrying out soil pudding at the front part of a planting part is attached to the planting apparatus. In the operation, a driving shaft 8 for driving the planting part from the traveling machine body 1 is separately laid at one side of the rolling spindle 31. A driving shaft 9 for driving the pudding apparatus 5 from the traveling machine body 1 is set separately from the rolling spindle 31 at the other side of the driving shaft 8 for the planting part. The planting apparatus is provided with the planting part for rows of odd number and the width of a sliding body 71 fixed at the front of the central planting part is made wider than the width of a rotor 5d laid at the center of the pudding apparatus 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous scraping transplanter capable of simultaneously scraping and planting seedlings.

[0002]

2. Description of the Related Art In a conventional simultaneous scraping transplanter, a scraping device is provided in front of the planting part of the planting device so that the planting work can be performed at the same time as the scraping work. The center portion of the planting device in the width direction is supported so as to be tiltable in the left-right direction with respect to the rolling support shaft, and it is 2
The drive shaft (vertical axis) of the book is configured to drive the planting part and the scraping device, respectively.

[0003]

The scraping apparatus in the above-described conventional scraping simultaneous transplanter is constructed by attaching a plurality of scraping rotors to a rotor shaft arranged in a lateral direction. In an even-numbered, for example, six-row transplanter, three rotors of the same length are fixed to the rotor shaft, and three T-shaped sliding bodies (floats) in plan view are provided behind the rotors. They are placed and grafts are made on both sides of these gliders.

In this surrogate simultaneous transplanting machine, the width of the center rotor in the center of the three rotors is wide enough to extend over two or more seedlings to be transplanted on both sides of the sliding body following the rotors. Is formed in. Therefore, the portion to which the drive shaft that obtains the drive force from the traveling machine body side that drives the rotor shaft is connected is deviated from the axial line of the rolling support shaft because it is necessary to avoid the center rotor. It must be.

Further, a bevel gear is used in the portion where the drive shaft transmits power to the rotor shaft to change the power transmission direction from the vertical axis to the horizontal axis. The rotor case (input case) is large in order to transmit the power. Due to such structural limitations, the drive shaft (vertical axis) that drives the rotor shaft from the traveling body side passes a position deviated considerably from the axis of the rolling support shaft in order to sufficiently avoid the center rotor. As described above, the drive shaft is displaced from the rolling support shaft as described above, and since there is a large rotor case in this displaced position, the considerable weight of both the drive shaft and the rotor case is increased. It is located at a position distant from the axis of the rolling support shaft, and has a structure that worsens the balance of the simultaneous transplanting machine.

As described above, the simultaneous scraping and transplanting machine having a poor balance has a problem that the planting device is tilted and rotated on the left side, that is, the rolling property is poor and deep and shallow planting of seedlings occurs.

[0007]

In order to solve the above-mentioned conventional problems, the simultaneous scratch transplanter of the present invention has an odd number of row planting devices 6 at the rear of the traveling machine body 1 via a rolling shaft 31. The planting device 6 is supported so as to be tiltable in the left-right direction.
In the simultaneous scraping transplanter equipped with the scraping device 5 for scraping on the front side of the planting part 62, the scraping device provided in the front part of the planting part 62 in the center of the planting device 6. The width of the rotor 5d of No. 5 is one width, and the drive shaft 8 for driving the planting portion 62 from the traveling machine body 1 is provided separately from one side of the rolling support shaft 31. A drive shaft 9 for driving the scraping device 5 is provided separately from the rolling support shaft 31 on the other side of the drive shaft 8 for the planting portion. That is, the simultaneous scratch transplanter according to the present invention,
The drive shaft 8 is arranged on one side and the drive shaft 9 is arranged on the other side around the rolling support shaft 31.

Further, the planting device 6 is provided with the planting portions 62, especially for an odd number of rows, and further, the width of the rotor 5d provided in the center of the scraping device 5 is slidably provided in the front portion of the planting portion 62. The width is narrower than the width of the body 71.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. A is a transplanter according to the present invention, which is provided with an engine 1E, a steering handle 2 including a steering handle, a seat and the like from the front on the upper part of a machine body 1 having front wheels 1a and rear wheels 1b, and a planting depth at the rear part of the machine body 1. A hitch 30 is provided at the rear end of the lifting mechanism 3 including a top link, a lower link, etc., which is lifted and lowered by a hydraulic cylinder mechanism of automatic control (not shown), and a rolling spindle that projects rearward from the hitch 30. 31 (FIG. 3), the center portion in the width direction of the planting device 6 provided with the scraping device 5 is axially supported so as to be tiltable (rolling) to the left and right via a metal part.

In the planting device 6, a planting machine frame 60 having a metal portion fitted to the rolling spindle 31 is provided with a seedling table 61 and planting claws (planting portion) for five-row planting. ) 62 is attached, and the transmission case 6 is attached.
A float type sliding body 7 is provided below 3 by the following arrangement shown in FIG. 3 so as to be vertically movable via front and rear support links 7a and 7b (FIG. 2).

That is, the sliding body 7 has two T-shaped sliding bodies 70 for two rows on each side of which seedlings for one row are planted, and one section is formed on the rear side, which is cut out at an intermediate portion thereof. One-row runner on which seedlings are planted (center float)
71 is installed. In addition, in this embodiment, the central single-strip sliding body 71 is linked to an automatic hydraulic pressure sensing control mechanism (planting depth control mechanism) having the same configuration as the conventional one. The up-and-down movement of the up-and-down mechanism operates the up-and-down mechanism 3 up and down to make the planting depth constant.

Further, as shown in FIG.
Is a rotary shaft 6 that is supported by a transmission case 63 on both sides of a rotor shaft 50 that is laterally provided in the planting width in front of the sliding body 7.
5 is rotatably supported by support arms 66, 66 extending through 5, and a vertical adjustment mechanism 67 with a handle, which is provided on the side of the planting machine frame 60, is connected to the support arm 66. By operating 67, the scraping device 5 is moved up and down so that the scraping depth can be adjusted.

Further, the planting device 6 includes the rolling support shaft 3
1 is provided on the rear side of the extension line of the center axis P of the first slide body 7.
The center of No. 1 and the planting claws 62 associated therewith are arranged, and the rotary shaft 63a (FIG. 3) pivotally supported in the transmission case 63 is located at a predetermined distance H to the right of the rolling support shaft 31. The bevel gears 8a and 8b provided in the input case formed in a bulging manner by the drive shaft 8 which is spaced apart and driven from the machine body 1 side are rotationally driven, and the left and right reciprocating movements of the seedling stand 61 and the planting claws are performed. The operation of planting 62 seedlings is performed.

At this time, the drive shaft 8 drives the planting device 6 by "rotating right" when viewed from the rear of the machine body 1, so that the driving reaction force of the drive shaft 8 causes the right-side sliding body 70 and the margin. When the scraping device 5 is actuated by the ground contact pressure in the field in a direction in which the planting device 6 is lifted upward on the right side about the rolling spindle 31, the scraping device 5 acts to cancel it.

The rotor shaft 50 is provided in the rotor case 51 axially mounted at an intermediate portion thereof by the drive shaft 9 extending rearward from the machine body 1 side and "counterclockwise" when viewed from the rear side of the machine body 1. The bevel gears 9a and 9b drive the drive shaft 9 in the scraping rotation direction. The drive shaft 9 is driven leftward from the rolling support shaft 31 by a predetermined distance L, so that the drive reaction force of the drive shaft 9 causes the left drive shaft to move to the left side. Planing body 7
0 and the scratching device 5 act to cancel the planting device 6 when the planting device 6 is lifted up on the left side around the rolling spindle 31 by the ground reaction force of the field. In this way, the rolling reaction of the planting device 6 is suppressed by the driving reaction forces of the drive shaft 8 and the drive shaft 9 in the opposite directions, and good planting work with less vibration can be performed.

The drive shafts 8 and 9 are individually driven by the transmission system shown in FIG. That is, the power transmitted from the engine E is transmitted from the front mission 1F that supports the front shaft 1a and is transmitted in a variable speed manner through the drive shaft 8 to the planting portion (planting claw) 62 of the planting device 6 and the seedling mounting. The platform 61 and the like are driven, and the front mission 1F is input to the rear mission 1R that supports and transmits the rear wheels 1b via the traveling PTO shaft 1S, and the drive shaft 9 is branched and transmitted from the rear mission 1R. The substituting device 5 is configured to rotate.

With this power transmission structure, both drive shafts 8,
Numeral 9 rotates in opposite directions on both sides of the rolling support shaft 31 (FIG. 3), so that mutual driving reaction forces can be canceled. Then, the transmission case 63 of the planting device 6 that is transmitted from the drive shafts 8 and 9 and the case portion of a heavy structure formed by internally mounting a bevel gear or the like on the input portion of the scraping device 5 are the rolling support shaft 31. Since they are provided on the left and right in a well-balanced manner as shown in FIG. 3, the tilting in the left-right direction can be smoothly performed around the rolling support shaft 31 along the ground of the planting device 6. The drive shaft 8 can be extended through the upper part of the rotor gap portion of the scraping device 5,
In a side view, the transmission case 63 and the rotor case 51 can be brought close to each other to simplify the structure of the transmission case 63.

Further, as shown in FIG. 5, the rotor shaft 50 (FIG. 3) is formed by connecting the outer circumferences of the left and right frame plates 53 having shaft stopper holes 52 at predetermined intervals with a scraping plate 55. And
As shown in FIG. 3 and the like, the cage rotors 5a to 5d are made to have different lengths, respectively, so that the fronts of the planting claws 62 can be accurately scraped, and they are individually spaced from each other. Is pivoted on.

That is, the longest rotors 5a, 5a are arranged on both outer sides, the second-order rotors 5b, 5c are arranged on the inner side through the mounting intervals of the support arms 66, and the shortest rotors (center The rotor 5 is located on the right side of the rotor case 51, and its center line is the center float 7 described above.
It is provided so as to coincide with that of No. 1. The rotors 5a to 5d arranged in this manner accurately scrape the planting strips in front of the rear planting claws 62, so that seedlings can be planted well.

Further, as described above, since the rotors configured to be short for each planting portion can be provided in a state in which the adjacent intervals are sufficiently widened, the rotor 5a is scratched from within this interval when scraping.
The forward mud flow caused by ~ 5d can be easily released to the rear, and the miniaturized rotor can reduce the manufacturing cost, and facilitates the attachment / detachment replacement work when the rotor is damaged. There are advantages such as being able to.

On the other hand, the width of the central center rotor 5d is smaller than that of the center float 71. Therefore, while the center rotor 5d precisely scrapes the front of the planting claw 62 at the rear of the center rotor 5d, the uncultivated soil surface is left on both sides of the soil, and the wide soil area on both sides of the soil surface is expanded. The center float 71 is slid over and slid.

Therefore, the center float 71 linked with the hydraulic automatic detection control mechanism can accurately detect the hard cultivated soil surface at both sides of the center portion of the planting device.
It is possible to satisfactorily slide while preventing subsidence, and the center float can be suitably used as a high-performance sensing float for automatic control of planting depth.

[0023] The simultaneous transplanting machine configured as described above is
In the plowed and flooded field, while moving the planting device 6 down and sliding the sliding body 7 to the surface of the ground, the scraping device 5 is rotated by the drive shaft 9 so that the planting part 62 and the seedling table 61 are moved. Drive shaft 8
, You can plant seedlings at the same time while performing scratching. At this time, the scraping device 5 pushes the muddy water on the ground surface forward as the scraping direction rotates and advances, and this muddy water flow passes through the mounting intervals formed between the rotors 5a to 5d and is discharged backward. Therefore, the muddy water flow is not forcedly discharged from both sides of the scraping device 5, and the tilting of the planted seedlings can be favorably prevented.

Further, each rotor, which is formed as a single unit with a short length for each planting claw 62, can precisely scrape the ground for each planting row even if there are local irregularities on the ground surface. As a result, seedlings can be planted well. In addition, the planting device 6 accurately controls the planting depth with the center float 71 and controls the planting up and down through the elevating mechanism 3, so that the seedlings can be satisfactorily planted at a constant depth.

The rolling action centering on the rolling support shaft 31 can be smoothly performed without being hindered by the driving reaction force of the drive shafts 8 and 9, and is located on both outer sides of the planting device 6. The planting operation can be satisfactorily performed while preventing the seedlings 62 from being deeply or shallowly planted by the planting claws 62.

[0026]

According to the present invention, the following effects can be obtained by the configuration described above. According to the invention of claim 1, the drive shaft of the planting portion and the drive shaft of the scraping device are provided separately from each other on the rolling support shaft that supports the central portion of the planting device in a rollable manner. The input case portion, which is a heavy-weight structure of both drive shafts, can be configured to be distributed to the left and right in a well-balanced manner around the rolling spindle.

Therefore, the lateral tilting of the planting device due to the unevenness of the field can be accurately performed, and the transmission case of the planting device and the rotor case of the scraping device can be downsized. be able to. Further, in a planting device having an odd number of planting portions, a single rotor can be easily installed in front of the planting portion located at the center. According to the invention of claim 2, in front of the sliding body of the planting portion located in the center, the scraping is performed by the rotor which is narrower than the sliding body, so that the sliding body has a hard cultivated soil surface in the central portion of the planting device. Can be accurately sensed on both sides of it, and can slide well while preventing subsidence, while optimizing the sliding body as a high-performance sensing float for automatic control of planting depth. You can

[Brief description of drawings]

FIG. 1 is a side view of a simultaneous scraping transplanter.

FIG. 2 is a side view of the planting device and the scraping device.

FIG. 3 is a development view showing a main part of the planting device and the scraping device of FIG. 2;

FIG. 4 is a perspective view showing a main part of the planting device and the scraping device of FIG. 3;

FIG. 5A is a front view of a rotor, and FIG. 5B is a side view of FIG.

FIG. 6 is a transmission system diagram.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Traveling machine (machine) 5 Scraping device 5a, 5b, 5c, 5d Rotor 6 Planting device 7 Sliding body 8, 9 Drive shaft 50 Rotor shaft 51 Rotor case 62 Planting claw (planting part) 63 Transmission case 71 Center Float (central runner)

Front page continued (72) Inventor Kotoku Takami 667 Izaiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Agricultural machinery Co., Ltd.

Claims (2)

[Claims] 1. A rear part of the traveling machine body 1 supports an odd-numbered row planting device 6 so as to be tiltable in the left-right direction via a rolling shaft 31, and a front side of a planting part 62 of the planting device 6. In the simultaneous scraping transplanter equipped with the scraping device 5 for performing scraping with, the width of the rotor 5d of the scraping device 5 provided at the front part of the planting part 62 at the center of the planting device 6 is set to 1 A drive shaft 8 for driving the planting portion 62 from the traveling machine body 1 is provided separately from one side of the rolling support shaft 31 and has a width for a strip, and a drive for driving the skid device 5 from the traveling machine body 1. A simultaneous scraping transplanter, characterized in that the shaft 9 is provided on the other side of the drive shaft 8 for the planting portion so as to be separated from the rolling support shaft 31. 2. The planting device 6 is provided with planting portions 62 for an odd number of rows, and the rotor 5d is provided at the center of the scraping device 5.
2. The simultaneous scraping and transplanting machine according to claim 1, wherein the width of each is smaller than the width of the sliding body 71 provided in the front part of the planting portion 62.