JPH05336810A - Rice transplanter - Google Patents

Abstract

(57) [Summary] (Correction) [Composition] In a rice transplanter equipped with a fertilizer applicator that performs fertilization work at the same time as planting work, the rear wheel and the planting claws 17 seedling planting position 6
The float 35 is attached between 0, the rear end of the float 35 is located in front of the seedling planting position 60 of the planting claw 17, and the fertilizer application section 61 of the fertilizer applicator is located near the rear part of the float 35 to the planting claw 17. It is arranged in front of the seedling planting position 60. [Effect] Compared to the conventional structure in which the rear part of the float is extended to the rear of the planting position of the planting claws, the existing seedlings can be prevented from leaning toward the float 35 side, and the planting posture and planting depth of the seedlings can be stabilized. The rice planting work can be speeded up easily, and the fertilizer application part 61 can be easily attached by using the float 35, and the fertilizer from the fertilizer application part 61 can be attached by using the groove of the float 35. It can be properly dropped to a predetermined depth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter equipped with a seedling table and a planting claw for continuously performing seedling planting work.

[0002]

2. Description of the Related Art Heretofore, there has been a technique in which a planting portion is provided on the machine so as to be swingable right and left by a predetermined angle, and left and right side floats are attached to the lower surface side of the planting portion to perform a multi-row planting operation. .

[0003]

In the above-mentioned prior art, since the spring is interposed between the main body and the planting part and the load of the planting part is shared by the side floats, the ground contact bottom area of the side floats can be easily achieved. Due to the movement of the side floats, it is easy to cause a staggered state in which the planted seedlings lean toward the float side due to the movement of the side float, and in the stiff field, the traces of the floats are easily formed as grooves, and the seedling planting posture and There was a problem that the planting depth could not be easily stabilized and the working speed was limited.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a rice transplanter equipped with a fertilizer applicator for performing fertilizing work simultaneously with planting work, a float is provided between the rear wheel and the seedling planting position of the planting nail. Installation, the rear end of the float is located in front of the seedling planting position of the planting nail, and the fertilizer application section of the fertilizer applicator is arranged in the vicinity of the rear of the float and in front of the seedling planting position of the planting nail. Compared with the conventional structure in which the rear part of the float is extended to the rear of the seedling planting position of the planting claw, it is possible to prevent the existing planted seedlings from leaning toward the float side, and to stabilize the seedling planting posture and planting depth. In addition to being able to easily speed up the work, the fertilizer application part can be easily attached by using the float, and the fertilizer from the fertilizer application part can be appropriately dropped to a predetermined depth by using the groove of the float. Is.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view of the float portion, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same. In the figure, (1) is a traveling vehicle on which an operator rides, and a vehicle body on which an engine (2) is mounted. Connect the rear end of the frame (3) to the mission case (4),
The front wheels (6) for traveling the paddy field are supported in front of the mission case (4) through the axle case (5), and the transmission cases (7) are continuously provided on both sides of the rear part of the mission case (4) to transmit the transmission. The rear wheel (8) for traveling paddy fields is supported on the rear end of the case (7). Then, on both sides of the hood (9) covering the engine (2), etc.
0) is mounted and the mission case (4) is formed by the body cover (12) forming the step (11).
Etc. and cover the driver's seat (1
3) is attached, and a steering handle (14) is provided at the rear of the hood (9) in front of the driver's seat (13).

Further, (15) in the figure is a planting section comprising a seedling table (16) for planting 6 rows, a plurality of planting claws (17), etc. Forward tilting seedling stand (1
6) is supported by the planting case (20) via the lower rail (18) and the guide rail (19) so as to be slidable left and right, and at the same time, the rotary case (21) is rotated at a constant speed in one direction. The nail case (22) (22), which is a pair of planting arms, is disposed in a symmetrical position about the rotation axis of the case (20) and is supported by the case (20). Attach the planting claws (17) (17) to the. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. The link frame (27) by connecting a support frame (24) to the rear side of the traveling vehicle (1).
Lifting cylinder (2) that lifts and lowers the planting part (15) via the
8) is connected to the lower link (26), and the front and rear wheels (6) and (8) are driven to move and move at a substantially constant speed, and at the same time, the stock is placed from the seedling stand (16) that slides back and forth to the left and right. The seedlings are picked up by the planting claws (17), and the seedlings are continuously planted.

Further, reference numeral (29) in the figure denotes a traveling speed change lever,
(30) is a planting lift lever, (31) is a planting sensitivity adjusting lever, (32) is a traveling clutch pedal, and (33) (3
3) is a brake pedal, (34) is a center float for equalizing two sections, (35) is a side float for equalizing two sections,
(36) is a lateral strip fertilizer applicator, and (37) is a chemical sprayer.

Further, as shown in FIGS. 4 and 5, seedling stand columns (38) are erected on the front sides of both sides of the planting case (20).
The shoe (39) at the upper end of the column (38) is slidably fitted into the guide rail (19), and the cylinder bracket (40) is integrally fixed to the upper portion of the support frame (24) to form a hydraulic rolling member as a rolling member. A cylinder (41) is attached to the bracket (40) via a support shaft (42), and both ends of a piston rod (43) of the cylinder (41) are linked to left and right columns (38) and (38).
4) Connected via (44), the piston rod (43) of the cylinder (41) is reciprocated left and right, and the planting portion (15) is centered on the rolling fulcrum shaft (23).
Is configured to be tilted to the left and right.

Further, as shown in FIGS. 6 and 7, a planting depth adjusting shaft (46) which is a planting depth adjusting member for connecting a planting depth adjusting lever (45) is rotatably provided under the planting case (20). The center float (34) is attached to the lower side of the planting case (20) through the planting depth adjustment link (47) of the shaft (46), and the front and rear links (48) (4).
Side float (35) is planted through case (2)
0) Supports the lower side, side float (35)
One end side of each link (48) (49) is connected to the bracket (50) on the upper surface via the pins (51) (52), and the pin of the column (38) is connected to the long hole (53) of the front link (48). (54) is slidably inserted, and the rear link (49) is connected to the bracket (55) of the planting case (20) through the pin (56) and the long hole (57). And each link (48) (4
The side float (35) is attached via 9).

Further, the link (47) of the planting depth adjusting shaft (46)
The side float (35) is linked to the center of the rear float (34) by the lever (45) by connecting the middle of the rear link (49) to the a) via the support shaft (58).
The side float (35) is located on the rear side of the rear wheel (8) and the concave portion (59) of the V-shape in plan view for taking in the earth mass lifted by the rear wheel (8) is side-floated. It is formed on the lower part of the front surface of (35), and a side float (35) is attached between the rear wheel (8) and the seedling planting position (60) of the planting claw (17) to attach the side claw (17). The rear end of the float (35) is located in front of the seedling planting position (60) of (1), and the mud on the rear side of the rear wheel (8) is taken into the lower surface of the side float (35) to evenly spread the paddy field for two rows. After flattening, plant nails (1
The seedlings are planted by 7), the fertilizer chute (61) is fixed to the rear side of the side float (35), and the fertilizer from the fertilizer applicator (36) is embedded in the soil by the chute (61). ing.

Further, as shown in FIGS. 2, 4 and 8, an automatic switch (62) for automatically controlling the rolling cylinder (41) and an ON / OFF operation of the lifting lever (30) are turned on in conjunction with the operation of engaging the planted clutch. A planting switch (63), a horizontal sensor (64) provided on the planting case (20) for detecting the lateral inclination angle of the planting part (15), and a body cover (1)
2) is provided with an angular velocity sensor (65) for detecting left and right tilting speed (tilt motion speed or acceleration), and each switch (62) (63) and sensor () are provided in a horizontal control circuit (66) composed of a microcomputer. 64) and (65) are connected, and an electromagnetic switching type rolling valve (67) for operating the rolling cylinder (41) is connected to the control circuit (66).

Then, as shown in the flow chart of FIG. 9, when the automatic switch (62) and the planting switch (63) are turned on, the inclination angle detection value of the horizontal sensor (64) and the angular velocity detection value of the angular velocity sensor (65) are detected. Is input, and based on the output of each sensor (64) (65), horizontal control by fuzzy reasoning is performed, and the lateral inclination of the planting part (15) is corrected to support it substantially horizontally to the rice field, When the switch (63) is turned off, the planting portion (15) is returned to the center of the traveling vehicle (1) so as to be substantially horizontal. Based on the detection results of the sensors (64) (65). Since the rolling cylinder (41) is automatically controlled by judging the actual tilting motion of the planting part (15) by fuzzy reasoning, the detection delay of the horizontal sensor due to inertial force is corrected, and the rolling cylinder (41) vehicle by (1)
Since it is not necessary to provide a cushioning material such as a spring at the connecting portion between the planting portion and the planting portion (15), the load shared by the planting portion (15) by the side float (35) is set to substantially zero, and the wheel traces are erased and the headland is leveled. It is only necessary to form the bottom surface of the side float (35) in such a shape that flattening can be performed, and the bottom area of the side float (35) can be formed smaller than before so that the overall front-back length of the float (35) can be shortened. Is configured.

Further, as shown in FIGS. 1, 7, and 10,
After the bracket (70) for fixing the fertilizer application groove body (69) to the bottom surface of the side float (35) with the bolt (68), and holding and fixing the front side between the bottom surface of the float (35) and the top surface of the groove operation body (69). The side is erected, and the middle portion of the fertilizer chute (61), which is the fertilizer application portion of the fertilizer applicator (36) in U-shape in plan view, is brought into contact with the rear surface of the groove making body (67) and the bracket (70), and the bolt (71). ) (72), and the fertilizer chute (61) near the rear part of the float (35).
7) It is arranged in front of the seedling planting position (60) and the fertilizer application soil soil plates (73) (73) are attached to the soil soil arm (74).
It is integrally fixed to the rear end side, and the front part of the soil arm (74) is rotatably connected to the pin (52) of the bracket (50). The fertilizer discharge port of the fertilizer applicator (36) and the fertilizer chute ( 61) The upper end side is connected by the fertilizer delivery pipe (75), the fertilizer from the fertilizer chute (61) is dropped into the groove of the groove body (67), and the fertilizer is embedded by the soil soil plate (73). When the soil soil plate (73) is unnecessary in a soft field, the hook (77) of the soil soil arm (74) is hooked on the pin (76) of the rear link (49) to form the soil soil plate (73).
Is configured to be lifted and supported in a non-acting position.

Further, as shown in FIG. 11, two rows of planting claws (17) are provided on the rear side of the center float (34), and one row of planting claws is provided on the rear side of the side float (35). Provided with nails (17) (17), four-row seedling mounting table (16)
The planting part (15) for four-row planting can be configured by mounting the above, and the side float (35) used for five- or six-row planting is also used for four-row planting. be able to.

[0015]

As is apparent from the above embodiments, the present invention is a rice transplanter equipped with a fertilizer applicator (36) that performs fertilizer application work at the same time as the planting work, and the rear wheel (8) and the planting claw (17). )
A float (35) is attached between the seedling planting positions (60) of the plant, and the rear end of the float (35) is located in front of the seedling planting position (60) of the planting claw (17), and the fertilizer applicator is also used. The fertilizer application part (61) of (36) is arranged near the rear part of the float (35) in front of the seedling planting position (60) of the planting claw (17). Compared to the structure that extends behind the seedling planting position, it can prevent the existing planted seedlings from leaning toward the float (35) side, stabilize the seedling planting posture and planting depth, and facilitate speeding up rice planting work. At the same time, the fertilizer application part (61) can be easily attached by using the float (35), and the fertilizer from the fertilizer application part (61) can be applied to a predetermined depth by using the groove of the float (35). In addition, it can be properly dropped.

[Brief description of drawings]

FIG. 1 is a side view of a float portion.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the planting part.

FIG. 5 is a front view of the same.

FIG. 6 is a side view of the float portion.

FIG. 7 is a plan view of the same.

FIG. 8 is a horizontal control circuit diagram of the planting section.

FIG. 9 is a flowchart of the previous figure.

FIG. 10 is a plan view of a float portion.

FIG. 11 is a plan view showing a modified example of FIG.

[Explanation of symbols]

 (8) Rear wheel (17) Nail with planting (35) Side float (36) Fertilizer (60) Nail with planting position with planting (61) Fertilizer chute (fertilizer application part)

Claims (1)

[Claims] 1. In a rice transplanter equipped with a fertilizer applicator that performs fertilization work at the same time as planting work, a float is attached between the rear wheel and the seedling planting position of the planting nail, and the seedling planting position of the planting nail is installed. A rice transplanter characterized in that the rear end of the float is positioned further forward, and the fertilizer application section of the fertilizer applicator is disposed near the rear of the float and in front of the seedling planting position of the planting nail.