JPH0331122Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) When row-seeding wheat, it is said that sowing the seeds over a wide width is effective in increasing yield.

Therefore, this invention relates to a wide-width seeding device for sowing wheat in wide rows.

(Prior art) In the conventional seeding device of this type,
A leveling plate is attached to the front of the seed box as described in Japanese Patent No. 153212.

(Problem to be solved by the invention) The conventional coulter opener 1 consists of a pair of discs with blades on the periphery, arranged in a V-shape that widens at the rear, and rotatably supported, for fertilization and seeding. When forming a groove A, the floor of the groove A is W as shown in Figure 4.
It becomes a letter shape.

In addition, in the above-mentioned conventional leveling device before sowing, since there is a distance between the leveling plate 2 and the seed drop opening 5 at the upper part of the rear seeding plate 4 of the seed box 3, the inside of the groove is not used before sowing. Even if the soil is finished with the leveling plate 2, the soil on both shoulders of the trench will collapse back into the trench until the seeds are sown.

Therefore, the seeds that fall from the seed drop opening 5 of the seed box 3, hit the seed diffusion plate 6, spread in the groove, and are sown are then spread inward by the rear both-side covering metals 7 to push the soil on both sides inward. When the seeds are covered with soil, they are returned to the inside along with the soil, resulting in a narrower sowing width.

Furthermore, since the leveling plate is perpendicular to the ground, the leveling plate must have appropriately soft elasticity. On the other hand, when the lower part of the leveling plate curves backwards due to ground resistance during work, the curvature is large, and the lower edge of the leveling plate moves up and down due to the magnitude of the grounding resistance.The bottom of the groove becomes wavy. The problem is that it is impossible to estimate an increase in revenue.

(Means for solving the problem) Therefore, in order to solve the above problem, this invention consists of a pair of disks with blades on the periphery, which are arranged in a V-shape that expands at the rear so that they can rotate freely. A pivotally supported coulter opener 1 is provided below the front of a frame 15 of the seeding machine b, and a seed box 3 is attached to the middle part of the frame 15, and a seed drop opening of the rear seeding board 4 of the seed box 3 is installed. A seed diffusion plate 6 is arranged behind the seed box 5, and a triangular recess 23 is provided at the center of the lower edge of the leveling plate mounting arm 21 whose front part is fixed to the seed box 3.
At the same time, the upper end of the elastic flat plate 2 is installed so that it bites into the groove A formed by the coulter opener 1, and the elastic flat plate 2 is tilted backwards and downwards, and is installed just below the seed drop opening 5 to widen the width. Configure the seeding device.

(Function) The coulter opener 1 forms a groove A with a W-shaped floor as shown in FIG. As shown in Fig. 5, the floor of the groove A is leveled at the lower part of the groove A, and the seed spreading plate 6 is inserted from the seed drop opening 5 of the seed box 3 into the groove A immediately after the flattening. Sow widely through the soil.

(Example) The drawing shows a multi-row fertilization seeding machine according to an embodiment of this invention, and its structure will be explained with reference to the drawing.
Reference numeral 8 denotes a machine frame of a multi-row fertilizer seeding machine, and a triangular mounting frame 9 fixed on the center of the front end thereof is connected to a three-point link hitch 10 of a tractor, although the upper and lower sides are not shown. The main shaft 11 is horizontally mounted so as to be freely rotatable.

12 is a fertilizer tank of the fertilizer applicator a, and a rotary shaft 13 (not shown) has a rotary agitator in the bottom. Provide a splash body. A coulter opener 1 is disposed below the fertilizer tank 12, and includes a pair of discs with blades on the periphery arranged in a V-shape that expands at the rear and rotatably supported. The lower end of a fertilizer drop gutter 14 vertically arranged with its upper opening facing the rear of the delivery port of the coulter opener 1 faces into the rear of the coulter opener 1.

b indicates a seeding machine placed behind the fertilizer applicator a;
Reference numeral 15 denotes an underframe of the seeding machine b, the front end of which is rotatably fitted onto the main shaft 11, and the seed box 3 is attached to the intermediate part. 16 is an input shaft suspended horizontally on the front part of the seed box 3;
Reference numeral 17 denotes a seed transfer plate disposed close to the front of the seeding plate 4, which is constructed by a rolling shaft 18, and the front end of the rolling shaft 18 is connected to the input shaft 16 by a bevel gear mechanism 19. 20 is a seed hopper attached above the seed box 3. The seed dispersion plate 6 is made by bending the horizontal piece of a shaped iron plate in a backward shape, and also bending the rear horizontal piece in a forward direction.
The upper end of the vertical piece is fixed to the seeding board 4 with the top of the ∧-shaped bent horizontal piece facing the rear of the seed drop opening 5. Reference numeral 21 denotes a leveling plate mounting arm, which is formed by bending an iron plate into a shape and bending the tip of the horizontal piece diagonally backward and downward, and its front vertical piece is fixed to the front of the seed box 3 with bolts and nuts 22. The upper end of the elastic flat plate 2 is made of rubber or the like and has a triangular recess 23 in the center of the lower edge on the rear surface of the rear bending piece;
The backing plate 24 is applied and fixed with bolts and nuts 25 inserted into those holes, and the leveling plate 2 is installed by tilting backward and downward, and the leveling plate 2 is placed just before the seed drop opening 5 of the seed box 3. Position it at the bottom. 26 is the underframe 1 behind the covering metal 7.
This is a pressure roller that is rotatably supported on the rear end of 5.

27 is a wheel installed on both sides of the middle part of the machine frame 8 by an axle 28, and the axle 28, the main shaft 11, and the main shaft 1
1, a rotating shaft 13, and an input shaft 16, respectively, are connected by a chain transmission mechanism. 29 is a saddle provided on the rear end of the machine frame 8.

Next, its effect will be explained. Put the machine in the field,
Fertilizer in tank 12, wheat seeds in hopper 20
When the seeds are poured into the seed boxes 3 and the tractor is started to move the machine forward, the wheels 27 rotate on the ground, and from the axle 28 via the transmission mechanism and the main shaft 11, the rotary shaft 13 drives the tank 12.
Input shaft 1
6, from which the bevel gear mechanism 19 and the rotating shaft 18
The transfer plate 17 is rotated via. Therefore, the fertilizer in the tank 12 is splashed into the falling gutter 14 while being stirred by the stirring splasher, and the fertilizer is transferred to the falling gutter 1.
4 falls into the coulter opener 1 from the lower end. Further, the seeds in the seed box 3 sequentially enter the radial grooves of the transfer plate 17 and are lifted along the seeding plate 4.
It falls from the drop port 5, hits the top of the diffuser plate 6, spreads left and right, and falls. Then, the pressing roller 26 rotates in contact with the ground, thereby supporting the underframe 15, and the coulter opener 1, leveling plate 2, and earth covering metal 7 are each properly dug into the soil, and the machine advances.

Therefore, fertilizer is applied by the coulter opener 1 into a groove for fertilization and seeding, which has a W-shaped bed as shown in FIG. The soil on both sides of groove A is scraped off using the leveling plate 2 and brought to the lower part of groove A to make the floor of groove A flat as shown in Figure 5. Then, the seeds in the trench are covered with soil on both sides using soil covering metals 7, and the top is compacted with rollers 26 to complete the fertilization and seeding work.

At this time, when the leveling plate 2 hits an obstacle such as a stone, the elasticity of the leveling plate 2 and the elasticity of the leveling plate mounting arm 21 combine to cause them to bend smoothly, and the leveling plate 2 can easily escape the obstacle. and proceed.

(Effects of the invention) This invention has the following remarkable effects because the wide seeding device is configured as described above.

(1) Since the seed diffusion plate is placed behind the seed drop opening of the seed box, the seeds that fall from the seed drop opening immediately hit the seed diffusion plate and spread left and right and fall, resulting in good seed dispersion and fall. It will be done.

(2) A leveling plate with a triangular recess in the center of the lower edge moves through the W-shaped groove formed by the coulter opener, and the leveling plate scrapes away the soil on both sides of the groove to the lower part of the groove. The floor of the groove is flattened, and the seeds are spread and sown from the seed drop opening of the seed box into the groove immediately after the flattening. Therefore, (a) Since the leveling plate does not have a central lower part, the grounding resistance applied to the leveling plate is small, and the leveling action in the groove can be performed smoothly and well.

(b) The floor of the ditch is leveled using a leveling plate, and the seeds are sown before the soil on both shoulders of the ditch collapses back into the ditch.
Yield can be increased by sowing widely over the entire width of the furrow.

(3) Attach the upper end of an elastic flat plate with a triangular recess in the center of the lower edge to the rear bent piece of the flat plate mounting arm, tilting it backward and downward. Therefore, (a) Even if the flat plate is made of a suitably hard elastic plate,
Good soil escape and smooth work.

(b) The backward curvature of the lower part of the leveling plate due to the ground resistance is reduced, and the vertical movement of the lower edge of the leveling plate due to the magnitude of the grounding resistance is small, so the floor of the groove can be formed flat.

(4) The elasticity of the leveling plate and the elasticity of the leveling plate mounting arm combine to allow the leveling plate to escape from obstacles such as stones, resulting in less damage to the leveling plate.

(5) The structure is simple, it can be manufactured easily and inexpensively, and its operation is light and smooth.

[Brief explanation of the drawing]

Fig. 1 is a side view of a multi-row fertilization seeding machine according to an embodiment of this invention, Fig. 2 is an enlarged side sectional view of the main sowing parts of the same, Fig. 3 is a front view, and Figs. 4 and 5 are FIG. 4 is a front sectional view illustrating the operation of the working state, and FIG. 4 shows the state of the groove formed by the coulter opener, and FIG. 5 shows the state of the groove immediately after the leveling plate has passed through the groove. DESCRIPTION OF SYMBOLS 1... Coulter opener, 2... Elastic leveling plate, 3... Seed box, 4... Seeding plate, 5... Seed drop opening, 6... Seed spreading plate, b... Seeding machine, 15...
...Underframe, i...groove.

Claims (1)

[Scope of utility model registration request] A coulter opener, which consists of a pair of discs with blades on the periphery arranged in a V-shape that widens at the rear and supported rotatably, is installed at the front lower part of the underframe of the seeding machine, and is installed in the middle part of the underframe. Attach a seed box to the seed box, place a seed dispersion plate behind the seed drop opening of the rear seeding plate of the seed box, and attach the front part to the diagonally backward downward bent piece of the leveling plate mounting arm, which is fixed to the seed box. A triangular recess is provided in the center of the lower edge, and the upper end of the elastic flat plate is installed, which bites into the groove formed by the coulter opener, and the elastic flat plate is tilted backward and downward to open the seed drop opening. A wide seeding device installed just below.