JPS60118104A - Irrigating seeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seeding machine for flooding, and more specifically, the depth or width of the groove created by the groove maker of the seeding device attached to the traveling vehicle body can be adjusted to suit the hardness or softness of the paddy topsoil. This automatically adjusts the seeding depth according to the seeding depth.

Generally, a seeder for flooding uses one seed (generally paddy seeds).
The seeds did not germinate unless they were sown at a certain depth of about 3 Crn, and it was difficult to control the seedlings because they would be washed away. Not only could the seeds not be sown and the seeds would not germinate, but there were also areas where the seeds would not germinate.

Also, as a general concept, when creating a seeding furrow with a furrow machine, it is difficult to cultivate when the topsoil of a paddy field is hard. I was under the illusion that I could not plant the furrow at the specified furrow depth unless I deepened the depth by +1 yen, so I sowed the seeds with a deeper ij/, 7 when the topsoil was hard, and made it shallower when the topsoil was soft. However, in paddy fields, this incorrect operation was carried out in order to avoid the phenomenon of the surrounding muddy water entering the trench and crushing it as soon as the trench was cut. Under conventional recognition? The 1η゛i of 1"1v depth had the disadvantage that it was difficult to maintain an accurate sowing depth and germination was not uniform.

This invention has developed an automatically controlled seeding machine that improves the conventional incorrect seeding depth adjustment, eliminates variations in seeding depth caused by hardness and softness of paddy topsoil, and maintains a highly accurate seeding depth. A. To achieve this objective, the present invention aims to improve the subsequent germination and growth of seeds by dispersing them into the topsoil of paddy fields using a seeding device (7) attached to a traveling vehicle body (1). When the topsoil is hard, reduce the depth of the groove or increase the width of the groove. narrow,
When the topsoil is soft, the structure of the seeder for flooding is linked to deepening the trench depth or widening the trench width. The seeding depth can be maintained at a predetermined depth, but unexpected situations such as seeds being washed away by muddy soil resulting in clumped seeds, seeds not germinating due to the seeding depth being too deep, or uneven germination occurring. It has the effect of preventing.

One embodiment of the present invention will be described in detail with reference to the drawings. (1) is a running vehicle body; in the illustrated example, it is a riding type vehicle body, but it may be a walking type vehicle body.

(2) is a bonnet that covers the engine (not shown); (3)
) is the front wheel, (4) is the rear wheel, (5) is the steering wheel, and (6) is the control seat.

(7) is a seeding device, and the seeding machine frame (8)]: +i
iJ+12 A lift mechanism (9) is installed at the rear of the KT middle body (1).
).This lift mechanism (9
) consists of an upper link (9a), a lower link (9b), and a hydraulic cylinder device 01.A seeding machine frame (8) is connected to the lower link (9a) and the lower link (9b) via a hitch link (9CWe) so that it can roll freely. The sowing machine frame (8) is installed so that it can be moved downward by -1- by the oil production circuit shown in Fig. 3. 01) is a hydraulic tank, 0O is a hydraulic pump, and α■ is a hydraulic switch. Pulp, (10a,) is a cylinder,
(1, Ob) indicates a piston.

0 → is a seed hopper, Q gu is a feeding device, and this 71 Manopa Q4) and feeding device are integrated at the top and bottom,
The hopper Q4) is configured so that the seeds in the hopper Q4) are fed out downward little by little. Then, with a scale of 71", Koninoto installs a transmission part in the sowing machine frame (8) 2)
Frame (16a)-(16b)-(16'l:))
In the illustrated example, six units are arranged on the left and right. θη・(1 and 0 floats are leveling floats for leveling the topsoil surface, respectively.The rear part is pivoted with a pin 0, and the front part is attached with a link so that it can move freely up and down.

Then, the hydraulic switching pulp α is interposed between the ground leveling flow (leveling flow) Qη in the center and the machine frame (8), and this float 0
When the no is pushed up high, the piston (10b) will protrude and the seeding machine frame (8) will rise, and if it moves too far down, the piston (101)) will be retracted and the seeding machine frame (8) will be lowered. The ground pressure of the ground leveling float αη is always maintained at an appropriate level.

al) is a seed-flowing pipe, the base of which is connected to the lower part of the above-mentioned feeding device 0-yen, and the seeds are thrown into a groove which is made by a groove-making device which will be described later.

(A) is a furrower, and in the embodiments shown in Figures 1, 4 and 5, the lower part of the arm is pivoted at the upper and lower intermediate parts to the sowing machine frame (8) with pins (A). The upper part of the arm Q4 is pivotally connected to the piston (261) of the hydraulic cylinder device (c) for controlling the seeding depth, and the piston (2
6h) protrudes, the bottom surface (220) of the groove creator (a)
The structure is such that the depth of the groove created by moving downward becomes deeper. The structure of the groove cutter (a) itself in this embodiment is ship-shaped in plan view, consisting of very ordinary left and right side plates (22a) and (22b) and a bottom plate (22C) provided only at the front.

In addition, the work 7 shown in FIGS. 6 to 8. ! , 7 H; ÷ is configured such that the side plates (22d) and (22f) on the left side 71 are rotatably attached around a support shaft that is lowered from the seeding machine frame (8), The lever (24a) replacing the arm (E) is attached to the left and right side plates (22(1), (2)
The left and right side plates (22
d) and (22f) j: U117. It has been completed. In addition, (a) always has left and right side plates (22d) and (2
21°) shows a spring that biases in the direction of reducing the distance.

The hydraulic circuit of the hydraulic cylinder device (c) is as shown in Fig. 3, in which 翺 is a hydraulic pump, l'l) is a hydraulic switching pulp, and (26a) is a cylinder 2).

01) is a topsoil hardness detector, 1) via a bracket 02 in front of the soil leveling float 01) in the central part of ii.
The tenth piece of art (31a) is pivotally mounted so that the first part of the piece enters into the topsoil, and the spring part (1.
The configuration is such that the boar sensor arm (31a) is held in the direction of penetrating deeply into the topsoil.

The spring (c) may be tensioned between the machine frame (8), but in the embodiment, the hydraulic cutoff valve C1,1
The sensor arm (31) is attached to the lower pressure arm (■) installed to press the ground leveling flow (07) on the support frame to which the sensor arm (31) is attached.
In a), when the topsoil is hard and is being rotated backwards and upwards, the upward movement resistance of the leveling flow (αη) is increased, and conversely, when the topsoil is soft and is being rotated forward and downwardly, the upward movement resistance is reduced. are doing.

Then, connect this sensor arm (31a) and the hydraulic switching valve of the hydraulic cylinder device (c) with a wire (
sensor arm (31a) when the topsoil is hard.
When the groove rotates backward and upward, the piston (26b) of the hydraulic cylinder device (c) is retracted and the groove creator @ is lowered to deepen the groove depth or narrow the groove width,
On the other hand, when the topsoil is soft and the sensor arm (31a) rotates forward and downward, raise the trencher (a) to make the trench shallower or to widen the trench width. It is configured in such a way that it is linked.

Note that (to) and (b) in the figure are soil covering pieces that are integrally provided to the leveling float a and 08.

(c) is the hydraulic sensitivity adjustment lever, which is connected to the lower pressure arm (b).
The lower pressure arm (B) is connected to a wire (G) via a spring θO so that the lower pressure can be changed. θ1) indicates a hydraulic operating lever for manually switching the hydraulic switching valve 03, and 0 indicates a planting clutch lever.

Next, to explain the upper action in detail, the traction suspension (1)
When each part is rotated by transmission while towing the seeding device (7), as the degree of sinking of the towing vehicle body (1) changes depending on the plowing depth of the paddy field, the ground pressure of the soil leveling flow 1-(1) changes. , moves downward by 2" with respect to the sowing machine frame (8). Then, when the float α moves upward greatly, the hydraulic switching valve 03
1 to the side where the piston (10b) protrudes to raise the sowing machine frame (8), and when moving down significantly, switch it to the opposite direction to lower it, and control the lowering so that the 1c order is always correct. do.

Is the groove maker (a) at the appropriate depth? , +7[L,
Seeds are taken out from the seed hopper 04) by the feeding device α0 into the created groove, and the seeds flow through the seed flow pipe 12+).
It will be sown through [1].

In this way, the seeding work is carried out, but since the hardness of the water 111 topsoil changes depending on the soil quality and the state of plowing, when the topsoil is soft, the sensor arm of the detector 01)
The tension of the spring (G) causes the cutter to rotate significantly forward and downward, loosening the wire (C).

Then, the hydraulic switching valve (to) is connected to the piston (26b).
e Switch so that it protrudes, and in the case of the embodiment shown in Figures 1-4 and 5, move the groove creator (A) downward as shown by the temporary line in Figure 4 via the arm (C). Increase the groove depth for rotational adjustment.

Therefore, the topsoil is bare, and even if the surrounding mud flows in, the groove depth will not become extremely shallow, and seeds will be sown in this state.

Conversely, when the topsoil is hard, the sensor arm 01) rotates backward and upward against the spring 0 as the vehicle travels, thereby pulling the wire. In this case, the hydraulic switching valve (1) is disconnected so that the piston (36111) is retracted, and the groove cutter (a) is rotated upward in the opposite manner to the above, thereby shallowing the groove depth. For this reason, the seeds are sown in the trenches as they have been cut, and at approximately the same depth as in the case of the topsoil.

In addition, in the case of the embodiment shown in Figures 6 to 8, when the topsoil is soft, the lower side of the cam rod (24a) rotates forward, so the cam groove Vh is widened and the groove width is widened. As a result, seeds are sown to the center of the trench before it is crushed by mud, and the seeding depth is maintained constant. On the other hand, when it is hard,
The groove width is not widened ('li/+'1i) and the groove is formed in a state where the resistance is small.

As described above, even when plowing is done on hard or soft topsoil, the seeds are sown at a constant seeding depth and accurate seeding work is performed.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a partially simplified plan view, and Fig. 3 is a partially simplified plan view.
The figure is a hydraulic circuit diagram, Fig. 4 is a side view of the main part, Fig. 5 is a plan view thereof, Fig. 6 is a side view of the separate material section, Fig. 7 is a side view of the main part, and Fig. 8 is a side view of the main part. The figure is a plan view thereof. Symbols in the figure (1) indicate a traveling vehicle body, (7) a seeding device, (c) a Vj groove cutter, and C3]) a detector. Patent Applicant Name Iseki Agricultural Machinery Co., Ltd. Representative Takashi Iseki Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Same

Claims (1)

[Claims] The topsoil hardness detector 0 detects whether the paddy topsoil is hard or soft. ), when the topsoil is hard, the trench depth is made shallower or the trench width is narrowed, and when the topsoil is soft, the trench depth is deepened or the trench width is widened. Seeding machine for flooding.