JPS63214A - Planting device of rice planter - 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 "Industrial Application Field" The present invention rotatably supports a rotary case in a planting case, and a sun gear provided at the center of rotation of the rotary case supports a plurality of plantings via a planetary gear. The present invention relates to a planting device for a rice transplanter, in which the claws are connected and supported, and seedling planting work is performed by the rotational movement of a rotary case.

"Prior art" Utility patent application No. 1710, 1986, which has already been filed by the applicant
In this type of planting device such as No. 95, an eccentric gear is used for the sun gear and planetary gear installed inside the rotary case, and when the rotary case rotates, the planetary gear rotates at an inconstant speed around the sun gear. There is a means for appropriately changing the claw posture.

``Problem to be solved by the invention'' However, in this case, the amount of change in the planting claw posture, that is, the swing angle of the planting claw, is set to a constant state depending on the eccentricity of the sun gear and planetary gear, and gear replacement etc. Unless otherwise specified, the conversion amount will not be changed, and the planting trajectory by the planting claw is also fixed.

"Means for Solving the Problems" Therefore, the present invention includes a sun gear rotation control element that freely changes the claw posture of the planting claw during the rotation of the rotary case, and the rotation control element can be used to control any planting claw. It is configured to obtain a trajectory.

"Function" According to the present invention, the swing angle of the planting claw is freely changed according to the rotation angle of the rotating core case of the rotary case by appropriately controlling the rotation of the sun gear by the rotation control element. This makes it possible to set an arbitrary planting claw trajectory, and as a result, it is not only possible to easily convert the planting claw to the desired seedling removal posture and seedling planting posture, but also to change these postures. By converting, it is possible to interrupt seedling harvesting by setting the 2g1 node for seedling removal and planting depth, or by removing the planting claw trajectory from the seedling stand, which improves work efficiency. be.

"Example" Embodiments of the present invention will be described in detail below based on the drawings.

Figure 1 is an explanatory cross-sectional view of the rotary case part, Figure 2 is a side view of the riding rice transplanter, and Figure 3 is a plan view of the same.
is the vehicle on which the worker rides, and the rear end of the body frame (3) on which the engine (2) is mounted is attached to the transmission case (
4), and the front wheels (6) for water E1 running are supported on both sides of the front part of the transmission case (4) via the front axle case (5), and Transmission case (which is the axle case on both sides)
7) are arranged in series, and a rear wheel (8) for running in paddy fields is supported at the rear end of the transmission case (7). and the engine (2)
Bonnet covering (9) Spare seedling stand (IQ) on both sides outside
and covering the transmission case (7) etc. with a vehicle body cover (12) forming a step (11);
The driver's seat (13) is attached to the upper part of the vehicle body cover (+2), and the bonnet (9) is attached in front of the driver's seat (13).
A steering handle (14) is provided at the rear.

Furthermore, (15) in the figure is a planting section that has a seedling stand (16) for multi-row planting, multiple planting claws (17), etc. Place the mounting platform (+8) on the guide rail (
18) and guide rails (19), the planting case (20) is supported so as to be slidable in both directions,
As shown in the figure, a rotary case (21) that rotates at a constant speed in the - direction is supported by the planting case (20), and claw cases (
22a) (22b), and
) Attach the planting claw (17) on the tip. In addition, a support frame (24) is provided on the front side of the planting case (2o) via a rotation fulcrum shaft (23), and a support frame (24) is provided via a three-point link mechanism (27) including a lift link (25) and a lower link (26). A support frame (24) is connected to the rear side of the traveling vehicle (1), and the front and rear wheels (8
) (8) is driven to move at a substantially constant speed, and at the same time, the seedlings for one plant are taken out from the seedling platform (16), which slides back and forth from side to side, using the planting claws (17), and rice planting work is carried out continuously. Configure it to do this.

In addition, (23) in Figure 1 is the travel gear shift lever, (30) is for raising/lowering the planting, (31) is the sensitivity adjustment lever for planting, (
32) is the launch pedal for driving, (33) (33) is the left and right brake pedal, (34)... is the funnel for [E1 side flat river, planting depth 5 @ link (35) etc. Said 7O-) (34) on the lower side of the planting case (20)...
・Supports

Furthermore, as shown in FIGS. 5 and 6? , awakening・l&tai(16
) Seedling removal plate (38) with the guide rail (18) provided at the lower end.
) Seedling removal rd37) and claw case (22a) (
The two planting claws (+7) (+7) provided on the rotary case (21) are moved alternately through the rotary case (22b), and two planting claws (+7) ( +
7) so that two seedlings are planted.

As shown in FIG. 1, a planting claw drive shaft (38) serving as an output shaft is rotatably supported at the rear end of the planting case (20),
The rotary case (21) (2
1) are fixedly supported symmetrically. Also, inside the rotary case (21) are each pair of positive sun gears (39) of the same number.
a) (39b) and positive idle gear (40a) (40b)
and a positive planetary gear (41a) (4lb), the planting claw drive +II (38) f, n the sun gear (39a
) (39b) and the intermediate shaft (42
a) Idle gear (40a) via (42b) (4
0b) and the claw case shaft (44a) which is fixed to each claw case (22a) (22b) with bolts (43).
(44b) and the planetary moya (41a) (41b)
The central two sun gears (39a) (38b)
Two planetary gears (41a) (4lb) are constantly meshed in a row through idle gears (40u) (4ob), respectively, symmetrically.

Furthermore, first and second motors (
45a) (45b) are fixed to the planting case (20), and the sun gears (39a) (39b) (7) are integrally fixed to the planting case (20) side.
6b) is the output gear (
47a) (47b) via transmission gears (48a) (48b), and the motors (45a) (45b)
) by appropriately driving the claw case shaft (
Claw cases (22a) (22) centered around 44a) (44b)
b) is provided so as to be rotated.

Further, the claw case shafts (44a) (44b) are connected to the cam shaft (44b).
9) is inserted freely through the camshaft (49).
The one end of the camshaft (48) is fixedly supported by the rotary case (21) through the position adjustment plate (50) and the pole (51) in a rotatable manner, and the other end of the camshaft (48) is fixedly supported by the claw case (22a).
) (22b), attach the bushing arm (5
3) and the extrusion cam (54), and the planting claw (
Bushrod (52) when 17) rushed into the field.
Advance the seedlings held between the planting claws (17) and push out the seedlings (17a).
) is configured to be pushed out into the soil.

By the way, the rotary case rotation angle sensor (55) detects each rotation angle every 8 rotations of the rotary case (21).
The planting case (20) is equipped with a rotary case rotation zero temperature sensor (56) that detects a reference zero degree for detecting one rotation of the rotary case (21).
The β1 degree sensor (5
5) is installed to detect the change in rotation angle during one revolution of the rotary case (21) based on the detection of each tooth of the sprocket (57), and a rotation transmission member (58) that fixes the input sprocket (57). The zero temperature sensor (5B) is installed near the circumferential surface of the rotary case (21) to detect the reference zero temperature of the rotary case (21) based on the rotation of the transmission member (58). Then, when the rotary case (2) rotates, the motor ( 45a) (45b)
The claw case shaft (44a) (44a) is driven in forward and reverse directions.
4b) is before and after the seedling removal position of the planting claw (17)!
-" - The rotation of the claw case shafts (44a) (4jb) is slower than the rotation of the rotary case (21), and the seedling planting position of the rotary case (21) is set at Due to the rotation of the rotary case (21), the claw case shaft (4)
4a) and (44b) are rotated quickly so that the movement planting locus (intersection) of the planting claws (17) draws a vertically long closed loop oval. In other words, the claw case shaft (44a)
(44b) has the planting claw (17) facing upward before and after the seedling extraction position, while the planting claw (17) faces upward before and after the seedling planting position.
It is configured so that the posture is facing downward.

FIG. 7 shows a control circuit for the motors (45a) (45b), in which the claw cases (22a) (22
The control circuit (60) includes a swing angle forming circuit (58) that sets the swing angle (58) to appropriately change the swing angle to a desired swing angle, and connects the angle sensor (55) and zero degree sensor (56) to a rotation angle detection circuit. (61) to the M control circuit (60), and the first and second motors (45a) (4
5b) is connected to the control circuit (80) via the first and second drive circuits (f32') (63), and each of the sensors (55
) (Rotary case (21) based on the detection of 5[i)
According to the rotation angle of the claw cage; 1. (22a) (2
2b) to a predetermined swing angle preset by the forming circuit (59).
) is configured to drive and control.

This embodiment is constructed as described above, and has a planting claw drive shaft (3
8), by continuously rotating the rotary case (21) in the - direction at a constant speed in the longitudinal direction of the aircraft, the claw cases (22a) at both ends of the rotary case (21) (
22b) is rotated around the axis of the drive shaft (38), but when the spinal pressure sun gears (39a) and (39b) are stationary, even when the rotary case (21) is rotating, the case ( 21) In the same way when stopping, remove the claw case (22a) (22
b) - Maintains a fixed posture and does not make any swinging movements.

In other words, when the rotary case (21) rotates once,
A planetary gear (41a) (4) is attached to the case (21).
1b) also rotates once, so that the claw case (22a) (
22b) can be maintained in a fixed position, and the sun gear (
By rotating 39a and 39b forward and backward from this stationary state, the rotation of the planetary gears (41a and 4lb) becomes faster or slower, and the claw case (22a)
The attitude of (22b) is changed upward or downward as appropriate.

Thus, the control circuit (60) operates and each motor (45)
a) When (45b) is drive-controlled based on the detection of each sensor (55) (56) (7), the rotary case (21
To explain the case where the claw case (2Q (22,) is set to swing up and down (59) according to each rotation angle of the rotary case (21) as shown in Figures 1IJ4 to 5) If the reference zero degree (0°) is set when the vertical direction of the rotary case (21) is held in the horizontal and horizontal state, the rotary case (21) reaches the upper and lower end positions when it rotates approximately 90'' in the direction of the arrow in Figure 5 from this state. Claw case (22a) (
22b) are indicated by the solid and broken line waveforms in the same figure. The solid line waveform corresponds to the claw case (22a), and the broken line waveform corresponds to the claw case (22a).
22b). ), the motor (45a) (
45b) are respectively driven in forward or reverse rotation to rotate the sun gears (39a) and (39b). As a result, the rotation of the planetary gear (41a) is faster than normal, and the rotation of the planetary gear (4lb) is slower than normal.
As shown by the imaginary lines in the figure, the claw case (22a) changes its angle α attitude upward, and the claw case (22b) changes its angle α attitude downward to maximize its swing angle.

As the rotary case (21) further rotates from this state, its swing angle is gradually reduced, and when the case (21) rotates 180'', it returns to the standard posture at the O degree position and the swing angle is reduced to Oo. At the same time, when the case (21) rotates beyond 180', the swing angle is gradually increased again, and when the case (21) is rotated by 270 degrees, the swing angle is maximized as when it is rotated by 90 degrees. (21) One rotation middle claw case (22a) (22b
) is in an upward posture at an angle α, the seedlings are taken out, and when the claw cases (22a) and (22b) are in a downward posture at an angle α, the seedlings are planted.

Figure 9 shows waveforms (a) and (b) that cause various swing movements of the claw case (22) during one rotation of the rotary case (21).
) (c) (d) (e)\ to the formation circuit (59)
The maximum swing angle is set to a < b.
＜c＜die tami no III
22a) and (22b) have different maximum swing angle positions, and any of these 15 swing movements can be easily performed by controlling the drive of the motors (45a) and (45b) based on these.

In addition, as shown in waveform (g), the maximum swing amount in the upward and downward directions can be varied, and it is also possible to set the downward movement time during one rotation to be longer.

(8) Each of the above-mentioned sensors <55) (58) is the planting claw drive shaft (
38) by detecting the rotation of the rotary case (
21), but the drive shaft (38) and! ! Any rotating shaft that has a numerical ratio relationship may be used.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a sun gear (39a) provided at the center of rotation of the rotary case (21).
In the structure in which a plurality of planting claws (+7) (+7) are connected and supported by (39b) via punetari gears (41a) and (41b), the planting claws (17) are lowered during rotation of the rotary case (21). It is equipped with sun gear rotation control elements (45a) (45b) that freely change the posture, and the rotation control elements (45a) (45b) can be used to control any planting claw track # (Q
), the planting claw (17) can be easily converted to the desired seedling take-out posture adapted to the position of the seedling platform (16) and the upright planting posture adapted to the field conditions, resulting in good rice planting. Not only can this work be done, but by changing these postures, the amount of seedlings to be taken out and the height of the planting area can be adjusted, or by removing the planting claw trajectory from the M platform (16), seedling removal can be interrupted. It has remarkable effects such as improving work efficiency.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional explanatory diagram of the rotary case part, Figure 2 is an overall side view, Figure 3 is a plan view of the same, Figure 4 is a partial side view of the planting part, and Figure 5 is an enlarged view of the same part. Figure 6 is an explanatory diagram showing the main drive system, Figure 7 is a control circuit diagram, Figure 8 is a diagram showing the relationship between the rotation angle of the rotary case and the swing angle of the claw case, and Figure 9. is an explanatory diagram of another modification.

Claims (1)

[Claims] A structure in which a plurality of planting claws are connected and supported by a sun gear provided at the rotational center of the rotary case via a planetary gear, comprising a sun gear rotation control element that freely changes the claw posture of the planting claws during rotation of the rotary case, A planting device for a rice transplanter, characterized in that the rotation control element is configured to obtain an arbitrary planting claw trajectory.