JPH1056835A - Transplanter with simultaneous puddling function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject transplanter designed to prevent planted seedlings from being forced down through suppressing muddy water flow discharge from float sides and smoothly conduct the water supply control operation for the field. SOLUTION: This transplanter is so designed that a planting device 6 corresponding to plural rows are supported on the rear portion of the traveling machine body and a float group 7 composed of outer floats 70 situated on both outsides of a planting width and a medium float 71 situated inside them, etc., is set up under the planting unit of the planting device, and there is mounted a puddling device 5 to conduct puddling operation in front of the float group. In this case, the medium float set at the center of the planting width is provided with a channel 73 allowing muddy water to flow therethrough, the front end portion of the medium float 71 is made to stand against the rotor mount interval of the puddling device 5 and seedlings corresponding to one row are planted behind the channel 73.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous scratching and transplanting machine capable of simultaneously scratching and planting a seedling.

[0002]

2. Description of the Related Art Conventionally, a sowing machine for simultaneous transplanting, in which a cultivated field is flooded and a seedling is planted simultaneously with a sowing process, is shown in FIG.
As shown in FIG. 1, a float group 7 composed of an outer float 70 and a middle float 71 is supported below a planting device 6 (FIG. 1) mounted on a multi-row planting type rice transplanter. The device 5 is configured to be driven to rotate.

The planting device 6 is commonly used as a conventional planting device 6 of a rice transplanter without the substitute device 5, and the middle float 71 has a wide width similar to that of the outer float 70. It is formed in a shape having a front end sled portion. The front-rear distance k between the front-end sled portion of the float and the scraping device 5 is arranged close to each other in order to reduce the body length.

[0004]

However, in the conventional simultaneous scraping transplanter configured as described above, the float front end is T-shaped and is arranged in a wide width, and furthermore, it is close to the forward scratching device 5. doing. Therefore, the rotor mounting interval 5 between the substitute devices 5
The so-called blocking state, in which the sewage flowing backward through k and the sewage pumped backward by the rotor stays in a state where the sewage merges into the forward and backward distance k between the scraping device 5 and the float group 7. Become. In this state, the stagnant sewage and the like are discharged from both sides of the float 7 outwardly and vigorously.

[0005] The muddy water flow has a momentum due to the pumping action generated by the rotation of the rotor, causing drawbacks such as pushing down the already planted shoots. Further, the muddy water blocked by the float group 7 causes a large running resistance. . Because of such a problem due to sewage, when performing the simultaneous planting work, after performing the above work in a state where the water impregnated in the field was once dropped to reduce the occurrence of muddy water flow, There was a problem that complicated water management was required, such as the need to supply and refill water again.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a simultaneous scraping transplanter according to the present invention supports a plurality of planting devices 6 at a rear portion of a traveling machine body 1 and has the same structure. A float group 7 consisting of an outer float 70 located on both outer sides of the planting width and a middle float 71 located inside the planting part 62 below the planting portion 62 of the device 6 is provided, and a scratching is performed on the front side thereof. In the substitute simultaneous transplanting machine equipped with the device 5, the middle float 71 installed at the center of the planting width of the float group 7 is formed with a passage 73 at the center thereof, which allows the passage of muddy water. The front end of the float 71 is arranged to face the rotor mounting interval of the scraping device 5, and one row of seedlings is planted behind the passage 73.

Further, the outer float 70 is formed in a straight shape substantially parallel to the outside of the middle float 71 and is attached to the outer float 70. A wide passage 75 for passing muddy water is formed between the outer float 70 and the middle float 71. The front ends of the middle float 70 and the middle float 71 are disposed so as to face the rotor mounting interval of the scraping device 5.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. A in FIG. 1 is a transplanter according to the present invention, which is provided with an engine E, a steering wheel 2, a steering wheel, a seat, and the like from the front on an upper part of a body 1 having a front wheel 1a and a rear wheel 1b. A hitch 30 is provided at the rear end of the elevating mechanism 3 composed of a top link, a lower link, etc., which is moved up and down by a hydraulic cylinder mechanism of automatic planting depth control (not shown). The central part in the width direction of the planting device 6 provided with the scraping device 5 is supported on the rolling support shaft 31 (FIG. 3) so that the central portion in the width direction can be freely tilted (rolled) left and right via a metal portion.

The planting device 6 includes a rolling support shaft 31.
A transmission case 63 in which a seedling mounting table 61 and a planting portion 62 having planting claws for five-row planting are arranged is mounted on a planting machine frame 60 formed with a metal portion that fits into a metal part. Under the transmission case 63, a float group 7 composed of a float type sliding body can be moved up and down via front and rear support links 7a and 7b (FIG. 2) by the following arrangement shown in FIG. Is provided.

That is, the float group 7 composed of the above-mentioned sliding body
Are provided on both outer sides of the planting width, and a wide T-shaped two-piece outer float 7 on each side of which a single seedling is planted.
0, 70 and a pair of right and left middle floats provided inside the outer floats 70, 70 and formed in a pair of right and left narrow widths so that a single row of seedlings can be planted at the center thereof. 71, 71.

The front part of the outer float 70 has a projecting sliding surface 7b projecting to both sides so as to form a sliding surface wider than the sliding surface 7a between the strips. Leveling. The sled-shaped tips of the middle floats 71, 71 have a semicircular arc shape with little resistance to muddy water flow, and a passage 73 formed between the middle floats 71, 71.
Is arranged so that the front of the planting position can be replaced by a central rotor 5d, which will be described later, and the floats 71, 71 are leveled while sliding on the unscratched portions on both sides of the rotor 5d. I have. Also, outside the middle floats 71, 71,
Passages 75, 75 between the insides of adjacent outer floats 70, 70
Are formed respectively. Therefore, three passages 75 are arranged behind the scratching device 5.

The front ends of the outer float 70 and the middle float 71 are arranged on the same line in the horizontal direction, and a front-rear distance K is provided behind the scraping device 5 to relax and relieve the force of the muddy water flow at the time of scratching. The muddy water and mud, which is communicated with the passages 73 and 75 and the outside of the outer float 70 and is scraped by the scraping device 5, and the muddy water and mud (hereinafter referred to as muddy water) pushed forward by the float group 7 on the front surface thereof. I have to.

In this embodiment, the middle float 71 in the center of the float group 7 is connected to a hydraulic automatic sensing control mechanism (planting depth control mechanism) having the same configuration as that of the prior art. The up-and-down mechanism 3 is operated up and down by the up and down movement of 71 when sliding on the ground to make the planting depth constant. As shown in FIG. 3, the scraping device 5 is configured such that both sides of a rotor shaft 50 provided laterally to the planting width in front of the sliding body 7 are rotated by a rotating shaft 65 that is supported by a transmission case 63. One end is supported and rotatably supported by support arms 66, 66 extended rearward, and a vertical adjustment mechanism 67 with a handle provided on the side of the planting machine frame 60 shown in FIG.
6 is provided so as to be able to move the scraping device 5 up and down by operating the up-and-down adjusting mechanism 67 to adjust the scraping depth.

Further, in the planting device 6, the center of the middle floats 71, 71 and the planting claw 62a related thereto are arranged behind the extension of the center axis P of the rolling support shaft 31 (FIG. 3). The lateral rotating shaft 63a supported in the transmission case 63 is separated from the rolling support shaft 31 by a predetermined distance H to the right by the drive shaft 8 driven from the body 1 side. The bulging input unit case 63b
It is rotatably driven through bevel gears 8a and 8b provided therein, and performs reciprocating left and right movements of the seedling mounting table 61 and an operation of planting the planting claws 62.

At this time, the drive shaft 8 is rotated "clockwise" as viewed from the rear of the machine body 1 to drive the planting device 6, so that the drive float 8 and the right outer float 70 and the When the scraping device 5 is actuated in the direction of lifting the planting device 6 upward on the right side about the rolling support shaft 31 due to the contact pressure of the field, it acts to cancel this.

The rotor shaft 50 of the laterally disposed scraping device 5 is rotatably supported in the rotor case 51 at an intermediate portion thereof, extends rearward from the body 1 side, and is viewed from the rear of the body 1. The drive shaft 9 is "left-rotated" and is driven in the scraping rotation direction via bevel gears 9a and 9b. The driving shaft 9 is provided with the rolling support shaft 31 disposed at the center.
The left sliding body 70 and the scraping device 5 are driven by a predetermined reaction distance L to the left from the left side.
When the planting device 6 is lifted up on the left side around the rolling support shaft 31 by the ground contact reaction force of the field and is activated,
It works so as to cancel this. When the drive shaft 8 for driving the planting device 6 and the drive shaft 9 for driving the scraping device 5 are driven in opposite directions, the reaction force generated by the driving shaft 8 is used. Rolling can be suppressed, and a good planting operation with less vibration can be performed.

The drive shafts 8 and 9 are separately driven by the transmission system shown in FIG. That is, the power transmitted from the engine E is transmitted from the front transmission 1F, which supports the front wheel 1a to be able to change the speed, via the drive shaft 8, the planting portion (planting claw) 62 of the planting device 6 and the seedling mounting. Stand 61
Etc. are driven. The front transmission 1F supports the rear wheel 1b via the traveling PTO shaft 1S,
The input is input to the rear mission 1R to be transmitted, and the drive shaft 9 is branched and transmitted from the rear mission 1R to rotationally drive the scraping device 5.

With this power transmission configuration, the two 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. As shown in FIG. 3, a transmission case 63 of the planting device 6 transmitted from each of the drive shafts 8 and 9 and a heavy-weight case portion formed by internally mounting a bevel gear or the like at an input portion of the substitute device 5 are provided. Since it is provided on the left and right sides of the rolling support shaft 31 in a well-balanced manner, the tilting in the left-right direction around the rolling support shaft 31 along the ground of the planting device 6 can be performed smoothly.

The driving shaft 8 is provided with a rotor 5d of the scraping device 5.
5c can be passed through, so that the transmission case 63 and the rotor case 51 can be made closer to each other in a side view to simplify the configuration of the transmission case 63. As shown in FIG. 5, the rotor shaft 50 is formed in a cage shape by connecting the outer peripheries of left and right frame plates 53 having shaft stopper holes 52 at predetermined intervals with a scratching plate 55. Then, as shown in FIG. 3 and the like, the cage-shaped rotors 5a to 5d are formed to have different lengths, and the rotors 5a to 5d adjacent to each other are formed so that the front of each planting portion 62 can be properly scraped. They are individually fixed to the shaft with a mounting interval of 5k between 5d.

That is, the longest rotors 5a, 5a are arranged on both outer sides of the scraping device 5, the next length rotors 5b, 5c are arranged between the two support arms 66, and the shortest rotor (5 The center rotor 5d is arranged on the right side of the rotor case 51, and its center line is aligned with the above-mentioned middle floats 71, 71.
Are arranged so as to coincide with the center line. The five rotors 5a to 5d arranged as described above accurately scrape the planting streak in front of each planting claw 62a of each planting portion 62 arranged rearward, and Planting can be performed well.

Further, the five rotors which are short for each planting portion as described above are provided in a state where the mounting interval 5k is sufficiently widened between adjacent rotors. Through the interval 5k, the muddy water flow generated by the rotors 5a to 5d at the time of scraping can be accurately released backward. Since the rotors 5a to 5d configured as described above can be manufactured easily, the manufacturing cost can be reduced, and the attachment / detachment replacement work can be facilitated when the rotor is damaged. There are advantages.

Also, three float groups 7 each including the outer float 70 and the middle float 71 having a grounded portion formed in parallel are provided between the rotors 5a to 5d so as to have a mounting interval of 5k. ing. On the other hand, as shown in FIG. 3, the width of the center rotor 5d disposed at the center is formed to be narrower than the width of the center float 71. Therefore,
By this center rotor 5d, the front of the central planting portion 62 at the rear is properly scraped, leaving unscratched cultivated soil surfaces on both sides thereof, and the cultivated soil surfaces on both sides are followed by a narrow medium. The contact surfaces of the floats 71, 71 are slid and leveled.

Therefore, the middle float 71 connected to the automatic hydraulic pressure sensing control mechanism can accurately sense the hard cultivated soil surface at the center of the planting device 6 and can slide smoothly while preventing settlement. The float 71 can be used as a sensing float for automatic control of planting depth. The simultaneous scratching transplanter A configured as described above lowers the planting device 6 in the cultivated and flooded field and slides the float group 7 composed of the sliding bodies on the ground surface, Is rotated by the drive shaft 9, and the planting portion 62 and the seedling mounting table 61 are further driven by the drive shaft 8.
The seedlings can be planted at the same time while performing the scraping by driving with.

Each of the rotors 5a to 5d formed in a single unit with a short length for each of the planting claws 62a can accurately scrape the ground for each planting streak even if there are local irregularities on the ground surface. The seedlings can be satisfactorily planted. 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. At this time, the scraping device 5 scrapes out muddy water on the ground surface as the scraping direction rotates and proceeds. Since this muddy water flow passes through the mounting interval 5k formed between the rotors 5a to 5d and is drained rearward, the muddy water flow from both sides of the float disposed behind the scraping device 5 as in the conventional device. Is no longer drained vigorously, and tilting of the planted seedling at this site can be prevented well.

The muddy water that has passed through the mounting intervals 5k, 5k...
In a state where the momentum is reduced by hitting the front end sled surface of the 0 and middle floats 71, the muddy water flows rushed by the respective rotors 5a to 5d are joined while passing through the central passage 73 and the side passage 75 to the rear. The muddy water, which stays at the front-rear interval k and tries to vigorously drain to both outer sides of the float group 7 like the conventional device, is formed at the center of the middle float 71 because it is discharged smoothly. The air is efficiently discharged backward from the passage 73 and the passage 75 formed on the side of the passage 73.

Further, most of the muddy water flow can be released through the width of the float group 7 composed of a plurality of floats through the passage 75 formed between the straight middle float 71 and the outer float 70. , Both outer floats 70, 70
Can reduce the amount of muddy water drained from the side and reduce the momentum, and it is possible to satisfactorily prevent the planted seedlings that have already been planted from being pushed down.

The unscratched portions of the rotor mounting intervals 5k, 5k... Are the middle float 71 and the outer floats 70, 70.
Is pressed into the ground by its own weight to form a leveled float mark, so that this portion does not protrude from the water surface and weed growth can be prevented. Therefore, when performing the simultaneous planting work like a conventional apparatus, it is possible to omit the step of once dropping water impregnated in the field, or to reduce the degree of dropping water. It is possible to provide advantages such as saving water consumption and simplifying water management.

Next, an embodiment of the present invention shown in FIGS. 7 and 8 will be described. The middle floats 71, 71 in FIG.
0 does not provide a projecting sled (protruding sliding surface) on both sides of the front,
By forming the front and rear portions in a semi-circular shape with a straight, equal-width sliding surface 7a, a wide passage 75 parallel to the outside of the middle float 71 and the inside of the outside float 70 is formed,
The width of the sliding surface 7a of the outer float 70 is made wider than that of the middle float 71 so that both sides of the planting device 6 can be stably grounded.

As a result, a wide passage 75 can be secured between the middle float 70 and the outer float 71, and the muddy water is discharged through the passage 75 to further promote the discharge in the planting width. In this way, drainage from the side of the front end of the float group 7 is suppressed, and the front float 70 and the middle float 71, which have a straight shape as a whole, reduce muddy water pre-pressing and efficiently perform simultaneous planting work with small running resistance. Can do it. Further, it has features such as providing a simple and inexpensive float configuration.

The middle floats 71, 71 can be formed independently as described above, but as shown in FIG. 8 (A), the front upper portions of the left and right middle floats 71, 71 are connected in a downward U-shape. It is preferable to integrally form the member with a member 76 and to form a passage 73 between the floats 71 and 71. Also, as shown in FIG.
It is also possible to connect the lower surface of the first member with a connecting member 76 so that the muddy water flows above the lower surface. In any case, the middle floats 71, 71 are arranged in parallel like a ski, and a passage 73 or a passage 73 is formed therebetween to actively guide the flowing water backward.

[0032]

According to the present invention, the following effects can be obtained by the configuration described above. When performing simultaneous planting work,
The muddy water stream sent backward from the scraping device 5 is a middle float 71
The drainage in the planting width is promoted through the passage 73 formed by the above. Therefore, the muddy water flow discharged from the front of the outer floats 70, 70 toward the outside can be suppressed, and the momentum can be weakened, whereby the pushing down of the seedlings already planted can be prevented.

In addition, it is possible to perform a good simultaneous planting work with a small amount of running resistance. In addition, since the front ends of the outer float 70 and the middle float 71 can be brought into contact with a muddy water stream which is vigorously discharged from the rotor mounting interval of the scraping device 5 so as to pass through the passage in a weakened state, the passage is reduced. Seedlings can be planted well inside.

[Brief description of the drawings]

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

FIG. 2 is a side view of a planting device and a substitute device.

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

FIG. 4 is a perspective view showing a main part of the planting device and the substitute 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.

FIG. 7 is a plan view showing another embodiment of the float.

FIG. 8A is a perspective view of another embodiment of the middle float.
(B) shows a perspective view of still another embodiment.

FIG. 9 is a plan view of a comparative example having a conventional float shown in comparison with the present invention.

[Explanation of symbols]

5a, 5b, 5c, 5d Rotor 6 Planting device 7 Float (sliding body) 8, 9 Drive shaft 50 Rotor shaft 51 Rotor case 62 Planting claw (planting part) 63 Transmission case 70 Outer float 71 Medium float (Center float) ) 73,75 passage

Claims (2)

[Claims] 1. A plurality of planting devices 6 are supported at the rear of the traveling machine body 1 and outer floats 70 located on both outer sides of the planting width below the planting portion 62 of the planting device 6. And a float group 7 consisting of a middle float 71 and the like located inside the float
And a simultaneous scratching transplanter equipped with a scratching device 5 for scratching on the front side thereof, wherein a middle float 71 installed at the center of the planting width of the float group 7 has a central portion. A passage 73 that allows the passage of muddy water is formed, and the front end of the middle float 71 is disposed so as to face the rotor mounting interval of the substitute device 5, and one row of seedlings is planted behind the passage 73. A simultaneous scratch substitute transplanter characterized by being configured to attach. 2. An outer float 70 is formed in a straight shape substantially parallel to the outside of the middle float 71 and is attached to the outer float 70. A wide muddy water passage 7 is provided between the outer float 70 and the middle float 71.
5. The simultaneous scratching and transplanting machine according to claim 1, wherein the outer float 70 and the middle float 71 are formed such that the front ends of the outer float 70 and the middle float 71 face the rotor mounting interval of the scraper 5.