JPH05137421A - Seedling transplanting device of riding type rice transplanter - Google Patents

Abstract

PURPOSE:To improve maintenance property by protrudingly and upward installing a transmission case for transmitting a rotating power of a planting arm, providing an output shaft on the upper end and transmitting the power to fertilizer and a chemicals-spraying device. CONSTITUTION:An auxiliary transmission case 16 for transmitting a rotating power of a planting arm 2 is protrudingly installed upward from the rear of a planting transmission case 15. An output shaft 17 capable of transmitting to a fertilizer 20 and a chemicals-spraying device 24 is provided at the upper end of an auxiliary transmission case located on the upper side than the moving locus of a planting arm.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a riding type rice transplanter,
Various auxiliary work devices (eg, seedling planting device at the rear of the machine)
The present invention relates to a configuration for connecting a fertilizer application device, a chemical spray device, etc.

[0002]

2. Description of the Related Art In a riding type rice transplanter, as disclosed in, for example, Japanese Patent Application Laid-Open No. 2-195839, a fertilizer application device (see FIG. 1 of the above publication, in which fertilizer is embedded in a rice field at the same time as planting seedlings. In some cases, 2) and a drug spraying device (3 in FIG. 1 of the above publication) for spraying a drug for weeding or the like on the planted seedling are connected to the rear part of the seedling planting device. When the fertilizer applicator and the chemical spraying device are connected and driven, the rotational power of the planting arm (8 in FIG. 1 of the above publication) is applied to the rod (1 of FIG.
5, 34) is converted into reciprocating power and is transmitted to each of the fertilizer applying device and the chemical spraying device. This is because the rotation power of the planting arm has sufficient torque, and even if the fertilizer applicator and the chemical spraying device are driven, it can be driven with a relatively large margin. This is because it is necessary to operate in accordance with the timing of.

[0003]

As described above, when the rotational power of the planting arm is taken out by connecting the rod to the planting arm itself, the locus of movement of the planting arm and the locus of movement of the rod are calculated. The rod must be placed so that it does not interfere. Further, since the planting arm is at a lower position of the seedling planting device and the input parts of the fertilizer applicator and the chemical spraying device are at a higher position, the above-mentioned transmission rod becomes very long. Therefore, when disassembling and assembling work, it is necessary to handle the long rod while paying careful attention to the position where it is arranged.Moreover, unless the hands are put in the complicated part near the planting arm to connect the rods. Therefore, there is room for improvement in terms of maintainability. It is an object of the present invention to improve maintainability when connecting a fertilizer application device and a chemical spraying device to a seedling planting device.

[0004]

A feature of the present invention is that a planting transmission case extends rearward from the underside of a seedling stand, and a planting arm for planting seedlings is planted at the rear of the planting transmission case. The seedling planting device of the riding-type rice transplanter that is rotatably supported is configured as follows. An auxiliary transmission case for extracting and transmitting the rotational power of the planting arm is installed so as to extend upward from the rear part of the planting transmission case, and an assistant located above the movement path of the planting arm behind the seedling stand. At the upper end of the transmission case, an output shaft is provided which can take out the rotational power of the planting arm and transmit it to the fertilizer applicator and the drug spraying device which are connected to the seedling planting device.

[0005]

With the above construction, when the fertilizer application device 20 and the chemical spraying device 24 are connected to the rear part of the seedling planting device as shown in FIG. 2, for example, the planting arm 2 is provided behind the seedling stand 4.
Since the output shaft 17 is located at a relatively high position above the movement locus of, the output shaft 17 and the fertilizer application device 20
Across the input unit 22 of the and the input unit 32 of the drug spraying device 24,
When the power transmission mechanisms 23 and 33 (power transmission chains, push-pull type rods, etc.) are installed, the length of the power transmission mechanisms 23 and 33 becomes shorter than that of the conventional structure. Since the transmission mechanisms 23 and 33 are installed above the movement locus of the planting arm 2, the planting arm 2 can be planted without paying particular attention to the movement locus of the planting arm 2 and other devices. The transmission mechanisms 23 and 33 can be disassembled and assembled without putting a hand in a complicated part near the arm 2.

[0006]

As described above, when the fertilizer application device and the chemical spraying device are connected to the rear part of the seedling planting device, a transmission mechanism (a transmission chain, a push-pull type rod, etc.) shorter than the conventional structure can be easily provided. It became possible to disassemble and assemble, and it was possible to improve maintainability and workability.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, three sets of planting transmission cases 15 extend rearward from the rear part of the planting transmission case 1, and a pair of planting arms are provided at the rear end of the planting transmission case 15. A rotary drive type planting plate 3 having 2 is supported. The seedling placing table 4 is provided on the upper part of the planting transmission case 15, and the float 5 is provided on the lower part of the planting transmission case 15 to configure a seedling planting device of a riding type rice transplanter. Further, in the planting plate 3, the lower rotation side portion of the planting arm 2 is bent inward to form a convex portion 3a. After planting the seedlings by the planting arm 2 as shown in FIG. 3a is configured to press and solidify the mud on the left and right of the seedling.

As shown in FIGS. 1 and 2, an auxiliary transmission case 16 is installed so as to extend upward from the rear end of the planted transmission case 15, and the upper end of the auxiliary transmission case 16 (after the seedling stand 4 is shown). Side, position on the upper side of the locus of movement of the planting arm 2)
The output shaft 17 is provided in the left-right direction of the machine body. In the auxiliary transmission case 16, a transmission chain 19 is laid across the drive shaft 18 and the output shaft 17 of the planting plate 3, and is configured to transmit the rotational power of the planting plate 3 to the output shaft 17. There is.

The fertilizer application device 20 is connected to and supported by the seedling planting device. Next, the fertilizer application device 20 will be described. Figure 1
Also, as shown in FIG. 2, a pair of groove cutting plates 6 are fixed to the left and right of the float 5, and a groove making device 7 is fixed to each of the groove cutting plates 6. The grooving device 7 is configured by bending a flat plate into a U-shaped cross section, and digs a shallow groove in the rice field as the riding-type rice transplanter progresses.

The transmission case 8 is connected to the output shaft 17 of the auxiliary transmission case 16, and the groove cutting rotor 9 is rotatably supported at the rear end of the transmission case 8. A transmission chain 21 that transmits the power from the shaft 17 to the groove cutting rotary body 9 is arranged. The groove-rotating body 9 is provided with a plurality of sets of fertilizer holding recesses (not shown) on the outer periphery thereof and a push-out member (not shown) for pushing out the fertilizer in the recesses. It is configured to be rotationally driven counterclockwise in FIG. 2 by power. As a result, fertilizer is fed from the pipe 12 described below into the concave portion of the groove-cutting rotary body 9, and when the concave portion reaches the deepest part of the paddy field by the rotation of the groove-cutting rotary body 9, the fertilizer in the concave portion is pushed out by the pushing member. Is pushed into the field.

On the other hand, as shown in FIGS. 1 and 2, on the frame 10 fixed to the auxiliary transmission case 15, one set of hoppers 13 for storing fertilizer and three sets of feeding mechanisms 14 are provided.
Are connected and supported. A pipe 11 is connected from the left and right feeding mechanisms 14 to the left and right groove making devices 7, and a pipe 12 is connected from the central feeding mechanism 14 to the groove cutting rotary member 9. The drive shaft 22 common to the three feeding mechanisms 14
The drive shaft 22 and the auxiliary transmission case 1 are installed.
The transmission chain 23 is laid across the six output shafts 17, and the power from the output shaft 17 causes three sets of the feeding mechanism 14
Is configured to drive.

With the above structure, the grooving device 7 digs a shallow groove beside the seedling as the seedling is planted by the planting arm 2, and the fertilizers from the left and right feeding mechanisms 14 dig the grooving device 7. It is sent into the groove. Then, the fertilizer from the central feeding mechanism 14 is fed to the groove cutting rotary body 9, and the fertilizer is fed to a deep position between the left and right seedlings by the groove cutting rotary body 9.

A drug spraying device 24 is connected to and supported by the seedling planting device. Next, the drug spraying device 24 will be described. As shown in FIG. 1 and FIG. 2, a frame 25 extends rearward from the planted transmission case 15, and the chemical spraying device 24
The main body 26 is connected and supported, and a drug storage hopper 27 is connected to the upper portion of the main body 26. Inside the main body 26, while rotating around the axis of the vertical axis, a predetermined amount of the medicine in the hopper 27 is taken out and guided into the pipe 28, and a medicine falling from the pipe 28 is splashed over the entire line. The rotary blade 30 is arranged.

The rotary blade 30 shown in FIG. 2 is rotationally driven at a high speed by a motor 31. On the other hand, the input shaft 32 for the perforated plate 29 is arranged at the front part of the main body 26, and the transmission chain 33 is laid across the output shaft 17 and the input shaft 32 of the auxiliary transmission case 16. As a result, the power of the auxiliary transmission case 16 rotationally drives the perforated plate 29 to take out the medicine, and the rotary blade 30 disperses the medicine over the entire line.

[Other Embodiments] In the above-described embodiment, the output shaft 17 is arranged in the lateral direction of the machine body. However, the output shaft 17 is projected rearward from the auxiliary transmission case 16 (the machine longitudinal direction). May be.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

[Fig. 1] Planted transmission case, auxiliary transmission case and output shaft,
Rear view near fertilizer application

[Figure 2] Side view of the vicinity of the seedling planting device, auxiliary transmission case and output shaft, fertilizer application device, and chemical spray device

FIG. 3 is a front view showing a state in which a pair of planting plates press the left and right sides of the seedling.

[Explanation of symbols]

 2 Arm with planting 4 Seedling stand 15 Transmission case with planting 16 Auxiliary transmission case 17 Output shaft 20 Fertilizer application device 24 Chemical spraying device

Claims (1)

[Claims] 1. A planting transmission case (15) extends rearward from a lower side of a seedling stand (4), and a planting arm (2) for planting seedlings is provided at a rear portion of the planting transmission case (15). A seedling planting device for a riding-type rice transplanter that is rotatably driven by planting, wherein an auxiliary transmission case (16) for extracting and transmitting rotational power of the planting arm (2) is used for the planting transmission case ( 1
5) It is installed so as to extend upward from the rear part, and at the upper end of the auxiliary transmission case (16) located above the movement locus of the planting arm (2) behind the seedling stand (4), A riding type rice transplanter provided with an output shaft (17) capable of transmitting the rotational power of the planting arm (2) to the fertilizer application device (20) connected to the seedling planting device and the chemical spray device (24). Seedling planting device.