JPH0724481B2 - Shaping plate driving device in furrow shaping machine - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a ridge shaping device that prevents a ridge from collapsing by hitting the side surfaces of the ridge to shape the shape.

(Prior Art) A ridge shaping plate of a conventional ridge shaping device is composed of one plate on each of the left and right sides whose upper side is opened outward. The side surface of the ridge shaped by such a thing becomes a slope with a constant inclination angle from top to bottom.

(Problems to be solved by the invention) When the slope of the ridge is a slope having a constant angle from the top to the bottom as described above, it is inevitable that many ridges are formed on a cultivated land of a limited size such as a house. In addition, the ridges are steeply inclined and easily collapsed, and the width of the groove bottom between the ridges is narrowed, which makes it difficult for an operator to pass through. On the contrary, if the slope is made gentle and the groove bottom is wide, the number of ridges that can be formed in the cultivated land per unit area is reduced and the crop yield is reduced.

The present invention aims to overcome the above drawbacks.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a soil scavenger plate at the rear of a tilling rotor, and a pair of ridge shaping plates provided on the left and right of the rear surface of the soil scavenger plate are disposed laterally of the machine body. In a furrow shaping machine that reciprocates toward and moves forward while striking the side surface of the furrow, the pair of left and right furrow shaping plates are divided into an upper shaping plate and a lower shaping plate, respectively.

Then, the upper edge of the lower shaping plate is flexibly connected to the lower edge of the upper shaping plate about the connecting shaft.

The lower ends of a pair of rocking rods are pivotally attached to the left and right sides of the bottom surface of the back surface of the soil scavenging plate, and the respective upper ends thereof are pivotally attached to the insides of the left and right upper shaping plates.

Also, fixing rods are fixed along the inside of the left and right lower shaping plates, and the upper ends of the fixing rods project above the upper edges of the lower shaping plates.

Further, a pair of left and right swinging arms that swing back and forth around a support shaft provided on the back surface of the soil discharging plate is provided.

One end of each of a pair of left and right upper shaping plate connecting rods is pivotally attached to each tip of the left and right swing arms.
The other ends of these upper shaping plate connecting rods are respectively pivoted to the pivot points of the upper shaping plate and the swing rod.

Further, one end of each of a pair of left and right lower shaping plate connecting rods is pivotally attached to the central portion of the swing arm, and each other end of the lower shaping plate connecting rods is connected to each upper end of the pair of fixing rods.

Then, the swing arm is reciprocally swung by the power of the groove shaping machine to reciprocate the upper shaping plate toward the side of the machine at a swing angle larger than that of the lower shaping plate.

(Operation) The swinging arm makes a reciprocating swinging motion in which the tip forms an arc around the support shaft fixed to the soil discharging plate. Since the upper shaping plate is connected to the tip of the swing arm and the lower shaping plate is connected to the center of the swing arm, the upper shaping plate moves to the left and right more than the lower shaping plate.

Further, since the lower edge of the upper shaping plate and the upper edge of the lower shaping plate are connected, the lower edge of the upper shaping plate is restricted by the small lateral movement of the lower shaping plate. On the other hand, since the upper edge of the upper shaping plate moves greatly, the swing angle of the upper shaping plate is large.

The upper shaping plate shapes the upper part of the ridge, and the lower shaping plate shapes the lower part of the ridge. Therefore, the upper part of the ridge has a gentle slope and the lower part has a steep slope.

(Example) An example will be described with reference to the drawings.

As shown in FIG. 2, the furrow shaping machine is connected to the tiller 42. 44 is a front wheel for height adjustment, which raises the rear part of the machine when the mounting position is raised and lowers it when lowered.

51 is a drive wheel 51 of the cultivator 42, which is rotated by the power of the engine 50.

The cultivating rotor 45 is provided in front of the upper and lower shaping plates 1 and 2. The cultivating rotor 45 performs functions such as cutting soil and picking up soil.

Then, the engine 50 mounted on the rear part of the cultivator 42 is connected to the sprocket 43 on the rear part of the ridge-grooving machine,
Chain around 43 and sprocket 4. As described later, the sprocket 4 is connected to the upper and lower shaping plates 1 and 2 via a swing arm 46 and the like.

FIG. 1 is a rear view of a shaping plate drive device embodying the present invention as seen from the rear.

1,1 is a pair of left and right upper shaping plates, and 2,2 is a pair of left and right lower shaping plates. The lower edge of the upper shaping plate 1 and the upper edge of the lower shaping plate 2 are flexibly connected by connecting shafts 3,3. To do.

A swing plate connecting rod 8 is attached to a central shaft 5 of the sprocket 4 via a crank 6. A connecting rod 7 connects the crank 6 and the rocking plate connecting rod 8.

The triangular rocking plate 9 is provided with three shafts 10, 11 and 12 at each apex, the shaft 10 is at the lower end of the rocking plate connecting rod 8, and the shaft 11 is an earth discharging plate.
At 25, the shaft 12 is connected to one end of the first rod 13, respectively.

Further, the other end of the first rod 13 and one end of the upper shaping plate connecting rod 14 are connected by a shaft 15, and the other end of the upper shaping plate connecting rod 14 and the upper shaping plate 1 on the right side of FIG. 1 are connected by a shaft 16. .

Next, the first rod 13 is connected to the tip of the swing arm 46 by the shaft 15. A connecting arm 47 is integrally joined to the other end of the swing arm 46. Further, the swing arm 46 has a shaft at its center.
18 is connected to the lower shaping plate connecting rod 19. The other end of the lower shaping plate connecting rod 19 is connected by a shaft 20 to a fixed rod 21 integrally fixed along the inside of the lower shaping plate 2 on the right side.

Next, the swing arm 46 is attached to the earth plate at the shaft 17 at its lower end.
25 swingably connected. The other end of the connecting arm 47 is connected to one end of the second rod 22 by the shaft 23. 2nd rod 22
The other end of is connected to one end of a connecting arm 49 by a shaft 24.

The connecting arm 49 has a swing arm 48 on the left side at the other end.
It is integrally joined to one end of. Then, the swing arm 48 is
Connect to the soil plate 25 at 26. The other end of the swing arm 48 is connected by a shaft 27 to one end of an upper shaping plate connecting rod 28. The other end of the upper shaping plate connecting rod 28 is connected to the left upper shaping plate 1 by a shaft 29.

The swing arm 48 has a shaft 30 at the center thereof connected to the seventh rod 31 at one end thereof. The other end of the lower shaping plate connecting rod 31 has a shaft 32
Is connected to the fixed rod 33 integrally fixed along the inner side of the lower shaping plate 2 on the left side.

The rocking rod 35 is connected to the earth discharging plate 25 at one end by a shaft 34, and is connected at the other end to an upper shaping plate connecting rod 14 connected to the inside of the upper shaping plate 1 by a shaft 16. The rocking rod 37 has a shaft 36 and an earth plate 25
And one end thereof and the other end of the upper shaping plate connecting rod with a shaft 29.
It is connected to 28 and is provided at a position symmetrical to the swing rod 35.

Further, as shown in FIG. 4 and FIG.
The projecting piece 39 provided on the front part of the side surface and the projecting piece 40 provided on the front part of the side surface of the lower shaping plate 2 are bent to cover the flexible plate 38 in an integrated manner. The upper and lower shaping plates 1 and 2 on the opposite side are also covered with one flexible plate 38 in the same manner.

On the inner front edge of the upper shaping plate 1, a sliding plate 53 that slides along the back surface of the earth discharging plate 25 is welded. Similarly, a sliding plate 54 that slides along the back surface of the soil discharging plate 25 is also welded to the inner front edge of the lower shaping plate 2.

Then, when the sprocket 4 is rotated by the power of the engine 50, the power is transmitted by the shafts 5 and 7, the crank 6, the rocking plate connecting rod 8 and the rocking plate 9 of the crank mechanism, which results in FIG. 1 (A). , (B) and FIG. 6, the shaping plates 1, 1, 2, 2 move left and right while swinging about the shafts 34 and 36. At this time, since the upper shaping plate connecting rods 14 and 28 that move the upper shaping plates 1 and 1 are located above the lower shaping plate connecting rods 19 and 31 that move the lower shaping plates 2 and 2, they greatly move, A ridge having a loose upper portion A and a sloping lower portion B can be shaped, and the groove bottom C can be wide even if the gap between the ridges is narrowed (see FIG. 3).

As described above, when the projecting pieces 39, 40 provided on the front portion of the side surface are bent and the upper shaping plate 1 and the lower shaping plate 2 are integrally covered with the flexible plate 38, the upper shaping plate 1 and the lower shaping plate 2 are formed. Dirt does not enter the gap 41 between them. Therefore, the rocking motion of the upper shaping plate 1 and the lower shaping plate 2 becomes smooth without being disturbed by the soil in between. Since there are no gaps 41, the ridges can be shaped from top to bottom without a break. Further, the flexible plate 38 does not roll up as the machine body advances.

(Effects of the Invention) The present invention is divided into an upper shaping plate and a lower shaping plate, and the upper shaping plate largely changes the inclination to move left and right, and the lower shaping plate moves left and right without significantly changing the inclination. The effect is that the upper part and the lower part can be shaped with different inclination angles.

In addition, the upper and lower shaping plates on the left and right expand at the same time,
Since it is reduced and a part of the shaping plate does not come into contact with the ridges when the machine body moves, the machine body can easily move forward.

[Brief description of drawings]

FIG. 1 is a rear view of a ridge shaping device according to an embodiment of the present invention, (A) shows a state where left and right shaping plates are contracted inward,
(B) shows the state expanded to the outside, respectively. 2 is a side view of the entire ridge shaping machine, FIG. 3 is a sectional view of a ridge shaped by the ridge shaping device of the present invention, FIG. 4 is an enlarged side view of a shaping plate, and FIG. 5 is an enlarged section thereof. 6 and 6 are mechanical views showing the operation of the shaping plate. 1,1 is the upper shaping plate, 2,2 is the lower shaping plate, 3,3 is the connecting shaft, 14,
28 is an upper shaping plate connecting rod, 19 and 31 are lower shaping plate connecting rods, 21 and 33 are fixed rods, 25 is an earth discharging plate, 35 and 37 are swing rods, 38 is a flexible plate, and 45 is a plowing rotor. , 46 and 48 are swinging arms, and 50 is the engine of the groove shaping machine.

Claims (2)

[Claims] 1. A ridge groove provided on the rear side of a tilling rotor, and a pair of ridge shaping plates provided on the left and right sides of the rear surface of the cultivator plate reciprocates toward the side of the machine and strikes the side surface of the ridge to advance. In the shaping machine, while dividing the pair of left and right ridge shaping plates into an upper shaping plate and a lower shaping plate, respectively, the lower edge of the lower shaping plate is flexibly connected with the lower edge of the upper shaping plate using a connecting shaft as a fulcrum. The lower ends of a pair of rocking rods are pivotally attached to the left and right sides of the bottom surface of the back surface of the earth-discharging plate, and the respective upper ends thereof are pivotally attached to the insides of the left and right upper shaping plates, and inside the left and right lower shaping plates. A fixed rod is fixed along the lower shaping plate, the upper end of the fixed rod is projected above the upper edge of the lower shaping plate, and a pair of left and right swinging arms are provided for reciprocating swinging around a support shaft provided on the back surface of the soil discharging plate as a fulcrum. , And a pair of left and right upper alignments at the tip of each of the left and right swing arms. One end of the plate connecting rod with respective to pivotally,
The other ends of these upper shaping plate connecting rods are pivotally attached to the pivot points of the upper shaping plate and the swing rod, respectively, and one end of a pair of left and right lower shaping plate connecting rods is attached to the central portion of the swing arm. Each of them is pivotally attached, and each other end of the lower shaping plate connecting rod is connected to each upper end of the pair of fixing rods. However, the swing arm is reciprocally swung by the power of the groove shaping machine to move the upper portion. A shaping plate drive device which reciprocates the shaping plate toward the side of the machine body at a swing angle larger than that of the lower shaping plate. 2. The shaping plate driving device according to claim 1, wherein the left and right outer side surfaces of the upper shaping plate and the lower shaping plate are covered with one flexible plate.