JPH09163819A - Furrower of machine for sowing dry unhulled rice on row - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a furrower of a dry unhulled rice seed row-sowing machine, capable of opening furrows on the surface of a field and simultaneously sowing dry unhulled rice seeds in the furrows to prevent the seeds from birds, because the unhulled rice seeds are eaten by the birds before the germination of the rice seeds, when the dry unhulled rice seeds are scattered on the surface of the field for a sowing work, and further capable of easily changing the widths of the furrows into various sizes. SOLUTION: In this furrower of a dry unhulled rice seed row-sowing machine wherein a rotary furrower 1 comprising rotators 4, 4 and a plate 6 having a furrowing tool 5 nipped with the rotators 4, 4, outwardly projected from the outer peripheries of the rotators 4, 4 and having a large diameter is attached to a shaft 3 laterally projected from the lower end of each chain case 2, the nipped width of the plate 6 is kept constant, and the width of the furrowing tool 5 is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grooving device for a dry paddy row seeder. The present invention relates to a ditcher for a dry-seed row seeder, in which seeding grooves are formed on the drained surface of the ground after scraping, and seeds are sown with the dry rice having the water content immediately before germination.

[0002]

2. Description of the Related Art In conventional paddy row seeding, seed paddy is sprayed directly on the entire surface of the field, or seed paddy is sown in the hole while making a hole on the surface of the field.

[0003]

In such a conventional device in which seed pad is sprayed directly on the entire surface of the field, seed paddy is eaten by the bird after spraying, and seeds that germinate disappear.
The method of spot-seeding rice seed in the hole while making a hole on the surface of the field with a stick had a drawback that the seed rice that did not enter the hole could be eaten by the bird unless the falling pitch of the hole and the seed rice matched.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to eliminate such drawbacks of the conventional device, and has taken the following technical means. That is, on the rotary shaft 3 protruding laterally from the lower end of the chain case 2, there are provided the rotary members 4 and 4 and the large-diameter grooving tool 5 which is held by the rotary shaft 4 and projects further outward from the outer periphery of the rotary members 4 and 4. In the dry-seed row seeder 7 to which the rotary grooving device 1 including the plate 6 is attached, the holding width of the plate 6 is made constant and the width of the grooving tool 5 is changed in size. The device.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated example is a dry paddy rice seeder 7 which is attached to a rear part of a mobile agricultural machine 8 such as a tractor so as to be able to move up and down. There is. In the dry paddy row seeder 7 attached to the hitch 9 of the mobile agricultural machine 8, PTO power is input to the drive shaft 29 via the universal joint 10, and the rotation of the drive shaft 29 is transmitted to the rotary shaft 3 below the chain case 2. To be done. The rotary shaft 3 has a plurality of chain cases 2, 2. . Each of which protrudes from the lower part of each of the left and right sides to attach a pair of left and right rotary groovers 1, 1 to the mounting bolts 11,
It is attached at 11. 20 is a lock pin.

Rotary Groover 1, 1. . . Upper chain case 2,2. . From the bottom to the lower frame 31,3
1. . Of the main cover 32, 32. . And covers the upper part of the rotary grooving device 1. The upper frame 34 protruding rearward from the main frame 33 attached to the hitch 9 is provided with a seed dropping part in which a seeding hopper 35 and a feeding roll 36 are installed, and a seed pad 38 is fed from the lower end of the seeding pipe 38 through a seeding conduit 37. Fall into the groove. Reference numeral 39 denotes a gauge pipe, which supports the weight of the whole dry paddy seeder 7 and stabilizes the depth of the seeding groove formed by the groove making tool 5 of the rotary groove making device 1.

The rotary grooving device 1 includes inner and outer rotating bodies 4a and 4b.
And the plate 6 held between the inner and outer rotating bodies 4a and 4b.
The outer circumference of the plate 6 is a grooving tool 5 having a diameter larger than that of the outer circumference of the rotating body 4. The grooving tool 5 is an open groove having a triangular cross section, and the cylindrical rotator 4 is pressed against the surface of the paddy field drained after scraping to drive the grooving tool 5 into a protruding shape. Accordingly, a triangular groove along the traveling direction is opened on the surface of the field. By replacing the shape of the groove making tool 5 with a wide groove making tool 5a as shown in FIG. 2, it is possible to easily change to a wide seeding groove or a groove having a changed depth, and the beak of the bird does not reach the seed paddy. The depth and width can be changed.

Next, these attachment / detachment changes will be described in detail. The inner rotating body 4a is provided inside the drive pipe 12 attached to the rotary shaft 3 in the radial direction from a boss 14 attached via a bearing 13 on the inner side of the drive pipe 12.
5. . Mounting ring 1 integrally mounted on the inner circumference of the rotating body 4a
6 parts are bolts 17, 17. . It is attached so that it can rotate freely. A mounting disk 18 is integrally provided at the center of the drive pipe 12 in the longitudinal direction. Reference numeral 19 is a mounting hole for mounting the lock pin 20 described above.

The outer rotating body 4b is provided with a mounting ring 16a which is mounted on the inner circumference of the cylindrical portion of the driven pipe 21 and which is rotatably mounted on the outer circumference of the driven pipe 21 through a bearing 22.
4a to the stay 15a protruding in the radial direction from the bolt 2
3,23. . . Installed with Also, the driven pipe 2
A rim 24 is integrally attached to the inner end of the plate 1, and the mounting holes 25, 2 of the plate 6 are attached to the outer peripheral side of the rim 24.
5. . Is a mounting bolt 26, 26. . ., The central hole 27 of the plate 6 further engages with the engaging pins 28, 28. . Only the rotation is restricted by, and the driven pipe 21 is attached to the rotary shaft 3 by the above-mentioned mounting bolt 11 so that the grooving tools 5 and 5a can be driven and rotated in the outward protruding shape of the rotating body 4. The thickness T1 and T2 of the plate 6 of FIGS.
When a is wide at the protruding outer portion of the rotating body 4, the dimension in the axial longitudinal direction does not change at the time of mounting.

The entire dry rice seeder 7 is moved up and down by the vertical movement of the hitch 9 by an actuator (not shown) of the mobile agricultural machine 8. Then, as shown in FIG. 8, the grooves 30, 30. . . Part of the seed rolls containing water up to the germination state at the position of the work posture shown in FIG. 5, and then cutting off the water to such an extent that the rice grains loosen each other.
Weigh 6 parts and sow from the sowing tube 38.

9 and 10 show another form of the groove making tool, which will be described below. On the rotary shaft 3, a cylindrical inner rotary body 40, an intermediate rotary body 41, and an outer rotary body 42 are mounted around the drive pipe 43 and the driven pipe 44 in substantially the same manner as in the first example. There is. Then, on the outer periphery of the intermediate rotating body 41, a mounting ring 46 in which the grooving tool 45 is mounted in a brim is formed.
It is detachably attached with a screw 47. The inner diameter D of the mounting ring 46 is larger than that of the inner and outer rotating bodies 40 and 42, and the mounting ring 46 is replaceable by simply removing the screw 47.
Therefore, the width and height of the groove making tool 45 can be easily changed, and the time for reassembling can be shortened.

[0012]

As described above, according to the present invention, the rotary shafts 4, 4 protruding laterally from the lower end of the chain case 2 and the rotary bodies 4, 4 held by the rotary shafts 4, 4 are further outward from the outer circumferences of the rotary bodies 4, 4. In the dry paddy rowing machine 7 to which the rotary grooving device 1 including the plate 6 having the large diameter grooving device 5 protruding from is attached, the holding width of the plate 6 is made constant and the width of the grooving device 5 is changed. Therefore, even if the grooving width of the grooving tool 5 is changed, the total length in the axial longitudinal direction of the rotary grooving tool 1 does not change, and the adjacent rotary grooving machine 1 is assembled without worrying about it. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional rear view of the entire main part.

FIG. 2 is an enlarged cross-sectional view of another configuration of the main part groove tool.

3 is an explanatory exploded view of the inner rotating body of FIG. 1. FIG.

4 is an explanatory exploded view of the outer rotating body of FIG. 1. FIG.

FIG. 5 is an overall side view attached to a mobile agricultural machine.

FIG. 6 is an overall perspective view.

FIG. 7 is a rear view of the entire main part rotary grooving device.

FIG. 8 is a rear cross-sectional view showing a groove forming state of the groove forming tool.

FIG. 9 is a sectional rear view of the entire rotary grooving device of another embodiment.

FIG. 10 is an enlarged cross-sectional view of the main part groove making tool of FIG. 9;

[Explanation of symbols]

 1 Rotating Grooving Machine 2 Chain Case 3 Rotating Shaft 4 Rotating Body 5 Grooving Tool 6 Plate 7 Dry Rice Seeding Machine

Claims (1)

[Claims] 1. Rotating bodies 4, 4 and a rotating body 4, which is held by the rotating body 3, which is provided on a rotating shaft 3 protruding laterally from a lower end of a chain case 2.
4 In the dry paddy seeder 7 to which the rotary grooving device 1 including the plate 6 having the large diameter grooving device 5 protruding further outward from the outer periphery is attached, the holding width of the plate 6 is made constant. 5
The grooving device of the dry paddy row seeder is characterized in that the width of the paddle is changed.