JPS62111610A - Planting apparatus 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 comprises a seedling platform that reciprocates from side to side, and a planting claw that takes out one seedling from the seedling platform and plants it continuously. The present invention relates to a planting device for a rice transplanter that performs rice transplanting work.

"Prior art" Conventionally, as shown in Japanese Patent Application Laid-Open No. 199309,
A technology has been developed that includes a rotary case that rotates at a constant speed in one direction, and has planting claws arranged symmetrically around the rotational axis of the rotary case.

"Problems to be Solved by the Invention" In the prior art, the position of the planting case to which the rotary case is attached was formed higher than the lifting plate of the seedling stand.
The rotary case drive system must be bent inside the planting case, and the rotary case drive system cannot be easily simplified. There were problems such as the planting trajectory of the planting claw became wider in the longitudinal direction of the aircraft, making it difficult to easily obtain an appropriate seedling cutting and planting posture for the planting claw.

"Means for Solving the Problems" However, the present invention provides a device in which a planting claw is attached to a rotary case that rotates at a constant speed in one direction via a claw case, and in which the planting claw is attached to the rotary case or the claw case and the lower side thereof The rotary case and the float are arranged in a rotating manner so that they do not interfere with each other even when the upper surface of the circular leveling float is overlapped in side view.

``Function'' Therefore, the drive system can be easily simplified by lowering the mounting position of the rotary case than before, and an appropriate planting claw posture can be easily obtained with respect to the seedling stand or the field surface. Moreover, since the top surface of the float can be easily brought close to the rotation trajectory of the rotary case when viewed from the side, a sufficient planting depth adjustment range for raising and lowering the support position of the float can be obtained, and the structure is simpler than the conventional one. It is functionally configurable.

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

Fig. 1 is a side view of the planting section, Fig. 2 is a side view of the riding rice transplanter, and Fig. 3 is a plan view of the same. The rear end of the vehicle body frame (3) on which 2) is mounted is connected to the transmission case (4),
The front wheels (6) for running water E+J are supported on both sides of the front part of the transmission case (4) via the front axle case (5), and the transmission case (4), which is an axle case, is mounted on both sides of the rear part of the transmission case (4). 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). Then, a front support (10) is attached to the outside of both sides of the bonnet (9) that covers the engine (2), and the transmission case (7), etc. is covered with a vehicle body cover (12) forming a step (11). , the vehicle body cover (
12) Attach the driver's seat (13) to the upper part, and
3) A steering handle (14) is provided at the rear of the bonnet (9) in front of the vehicle.

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 platform (16) on the guide rail (
1 day) and the planting case (19) via the guide rail (19).
20) so as to be slidable back and forth in the left and right directions, and nail cases (22) (22) are arranged at symmetrical positions with respect to the axis, and the planting nails (17) are attached to the nail cases (22).

In addition, a center pin (2
3) is provided with a support frame (24), and travels via a three-point linkage mechanism (27) including a top link (25) and a lower link (26). (1) A support frame (24) is connected to the rear side, and a lifting cylinder (2nd) is provided to raise and lower the planting part (15) via the link mechanism (27), and the front and rear wheels (El) ( 8) is driven to move at a substantially constant speed, and at the same time slides back and forth from side to side.
6) - Take out the bacteria from the planting nail (17),
The system is configured to perform rice planting work continuously.

In addition, (29) in the figure is the travel gear shift lever, (30) is the planting lift lever, (31) is the planting sensitivity of 31, and (32).
) is the latch pedal for running, (33) (33) is the left and right brake pedal, (34)... is the float for leveling the rice field, and the planting case ( 20) The float (34)... is supported on the lower side.

Further, as shown in Fig. 5, the seedling take-out port (37) of the seedling take-out plate (38) provided at the lower end of the seedling stand (1B) is connected to the rotary case (21) via the five-claw case (22). The two planting claws (17) (1?) provided are moved alternately, and one rotation of the rotary case (21) removes the two planting claws (1?).
7) According to (17), it is configured so that two plants are planted.

Next, as shown in FIGS. 6 and 7, a planting claw drive shaft (38) is rotatably supported at the rear end of the value (-j case (20)), and a rotary shaft is attached to both ends of the drive shaft (38). Case (2
1) (21) is fixed symmetrically, and the sprocket (40) on which the planting claw drive chain 7 (39) is suspended is freely rotatably supported in the middle of the drive shaft (38), and the upper stop cam is the upper stop mechanism. The sprocket (40) is interlocked and connected to the drive shaft (3rd) through a unit clutch (42) equipped with a clutch lever (41), and the clutch shaft (44) is rotated by rotating the clutch lever (43). The eccentric pin (45) engages with the valley of the cam (41), and the rotation of the cam (41) causes the clutch claw on the cam (41) side to engage the sprocket) (40)
Pull it away from the clutch pawl of the unit clutch (42).
While disconnecting the unit clutch (42), the rotary case (21) rotates half a turn and the cam (41) engages the unit clutch (42).
a cam (4) with which said eccentric pin (45) engages in a disconnectable manner;
The troughs of 1) are provided at two locations at 180 degree intervals, so that two stopping positions are formed during one rotation of the rotary case (21).

Further, a sun gear (46) is loosely fitted to the planting claw drive shaft (38), and the sun gear (46) is fixed to the planting case (20) through the 1-phase adjustment lever (47) so as to be able to freely adjust the phase. An idle gear (48) and a planetary gear (48) having the same number of teeth as the sun gear (46) are provided.

Then, the idle gear (48) is fixed via the intermediate shaft (50), and the pawl case shaft (51) is fixed to the pawl case (22).
The planetary gear (48) is pivotally supported inside the rotary case (21) through the
) (48) (49) for each axis (3B) (50) (
51), and planetary gears (49) (49) are always engaged with the sun gear (46) via idle gears (48) (48). 48), the rotary case (21) is rotated at a constant speed via the planting claw drive shaft (3B), and the planting claws (17) at both ends of the rotary case (21) are fixedly supported.
(17) alternately with the seedling outlet (
37) and the rotary case (21).
) in conjunction with the rotation of the gears (46), (48), and (4).
9), the claw case shaft (51) is rotated at a non-uniform speed, and the claw case shaft (51) is rotated at a non-uniform speed through the rotation of the rotary case (21) from after cutting out the seedlings to the circular surface of the seedling platform (16). When planting seedlings on a circular surface, the rotation of the claw case shaft (51) is made slower than the rotation of the rotary case (21) until reaching the seedling take-out port (37). 37) The rotation of the rotary case (21) and the rotation of the claw cage (51) are approximately equal in the vicinity and near the rice field planting part, so that the planting trajectory of the planting claw (17) is vertically elongated in front of the rotary case (21). It is configured to be formed into an oval shape.

Moreover, the position adjustment lever (5) is attached to the rotary case (21).
2), one end of the camshaft (53) is fixed in a rotationally adjustable manner, and the camshaft (53) is loosely fitted to the claw case shaft (51).
The camshaft (53) is connected via a bush arm (55) to a bush rod (54) that penetrates through the middle and is connected to the extrusion claw (17a) for forced planting, and the planting claw (17)
When the bushing enters the field, the bushing rod (54) is advanced through the camshaft (53) and bushing arm (55), and the push-out claw (17a) pushes the seedlings held between the planting claws (17) into the soil. It is configured to output.

Furthermore, as shown in FIG. 1, flexible and elastic seedling extraction guides (56) are provided on both sides of the seedling extraction port (37), the upper ends of which are fixed and the lower ends of which extend downward.
) Plant so that one of the planting claws (17) provided at both ends is placed in the seedling removal guide (5G), and one of the planting claws (1?) provided at both ends are stopped above the float (34). The rotary case (21) is attached to the claw drive shaft (3 days) by setting the angle and the disengagement timing of the unit clutch (42) of the upper stop cam (41) at the respective positions agi. The planting claws (17) that stop between the two sides are held between the seedling removal guides (56),
While holding the seedlings in the planting claw (17), hold the planting claw (17) IL on the way from the field surface to the seedling extraction port (37), the lower side of the claw case (22), and the lower side of the rotary case (21). It is positioned above the upper end of the already planted seedlings (57) to prevent the planting claws (17) or the claw case (22) on the rear side of the machine from pushing down the final planted seedlings.

In addition, as shown in Figures 1 and 8, the planting claw drive shaft (38
), the rear end side of the planting case (20) is extended substantially linearly in the longitudinal direction of the aircraft, and the drive shaft (38 ) is disposed at a low position, and the rotary case (21) is disposed above the top surface of the float (30), and the rotary case (21) is disposed above the top surface of the float (30).
1) A four part (34a) is formed on the upper surface of the float (34) directly below, and the lower end side rotation locus of the rotary case (21) passes through the concave part (34a), and the rotary case (
The rotary case (21) and the float (34) can be arranged so that they do not interfere with each other even if the upper surface of the float (21) and the float (30) overlap in side view.

This embodiment is constructed as described above, and has a planting claw drive shaft (3
By rotating the rotary case (21) continuously at a constant speed in one direction in the longitudinal direction of the aircraft around this, the claw case shaft (51) is rotated through each gear (4B) (48) (49). rotates at a non-uniform speed, moves the planting claw (17) to the seedling cutting position in front of the direct outlet (37), and shifts the planting claw (17) to the planting position while entering the field, respectively. One seedling is planted by half a rotation of the rotary case (21), and by performing a planting stop operation via the clutch lever (43), the eccentric bin (45) is placed in the upper stop cam (41).
) comes into contact and disconnects the unit clutch (42), causing the first
Flow through the planting nails (17) on the front side as shown in the figure) (34
) The seedlings are stopped within the upper seedling retrieval guide (5B), and the seedlings that are cut and held by the planting claws (17) are prevented from falling off by the seedling retrieval guide (58), thereby eliminating the occurrence of missing plants when planting is restarted. At the same time, the rear planting claw (17) is stopped above the float (34) at a higher position than the upper end of the final planted seedling (57),
Preventing the planting claw (17) from rushing into the rice field and disturbing the rice field, and also ensuring that the planting claw (17) holds the cut seedlings,
It also prevents the planting claws (17) or the claw case (22) from coming into contact with the already planted seedlings and causing them to fall down.

In addition, by operating the planting depth adjustment link (35), the planting case (20) (34) is supported in close proximity to the rotary case (21), even when rice planting is carried out in a deep planting state. (34) Although the top surfaces overlap, the rotary case (21) passes through the recess (34a), so the flow) (34) It does not interfere with the top surface, so it is installed inside the planting case (20). The drive system of the rotary case (21) such as the chain 7 (39) can be formed approximately linearly and approximately parallel to the upper surface of the float (34), and the planting claw (
17) The planting locus can be formed to be narrow and vertically long in the longitudinal direction of the aircraft, and the seedling cutting and planting postures of the planting claws can be properly obtained, and the setting of the planting claw posture is also easy. It can be done.

Furthermore, as shown in FIG. 9, the rotary case (21) is attached behind the rear end of the float (34), and the float (34) is positioned outside this rotation locus, so that the upper surface of the float (34) and the rotary case (21) are connected. It is also possible to prevent interference.

Further, as shown in FIG. 10, the left and right width of the tail part (34b) of the float (34) is formed to be smaller than the mounting interval of the left and right rotary cases (21) (21) on both sides of the planting case (20),
As the rotary case (21) passes outside the tail portion (34b) of the float (34), the rotary case (21)
1) and the upper surface of the float (34) can also be prevented.

In addition, as shown in Fig. 11, the tail of the float (30) (34
c) is formed into an inverted U-shape, and a rotary case (21) is arranged above the inverted U-shape.
) and flow) (34) Interference with the upper surface can also be prevented.

Further, as shown in Fig. 12, the rotary case (21) (2
1) Through hole (34d) (34) (flow directly below) (34)
4d) and rotate the rotor 1 case (21) so as to pass through the through hole (34d) to prevent interference between the rotary case (21) and the top surface of the float (30).

In addition, as shown in Fig. 13, the tail (3) of the float (34)
4e) is formed into an inverted U-shape, and a through hole (34f) is opened in the tail portion (34e) directly below the rotary case (21), and the float (34) is formed symmetrically, and the through hole (34f) is formed symmetrically.
4F) Rotate the rotary case (21) so that the rotary case (21) and float (34) pass through the inside.
Interference with the top surface can also be prevented.

In addition, as shown in Figures 11 and 13, the planting case (2
0) It is also possible to arrange a single rotary case (21) in a cantilevered manner on the - side, and the planting of the seedling stand (16) can be done in the number of rows or in the arrangement configuration of floats (30). Double-end support for a pair of left and right rotary cases (21) (21),
It goes without saying that the cantilever support of the rotary case (21) of the tunnel can be selected, and the support structure of the planting claws (17) or the floats (34) can be arbitrarily configured depending on the number of planting rows.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a rotary case (21) that rotates at a constant speed in one direction and a claw case (22).
In the device in which the planting claw (17) is attached through the rotary case (21) or the claw case (22) and the top surface of the field surface leveling flow provided below (34) overlap in side view. The rotary case (
21) and the float (34) can be arranged in a manner that allows the mounting position of the rotary case (21) to be lower than before, making it easier to simplify the drive system and It is possible to easily obtain an appropriate planting claw posture with respect to the mounting table (16) or the rice field, and the flow (flow as viewed from the side with respect to the rotary case (21) rotation trajectory) (34
) Since the upper surface can be easily approached, a sufficient range of planting depth adjustment can be obtained by raising and lowering the support position of flow (34), and the structure can be made more simple and functional than the conventional one. It has the following effects.

Side view, Figure 2 is the overall side view, Figure 3 is the same plan view,
Fig. 4 is a side view of the planting section, Fig. 5 is a plan view of the same, Fig. 6 is a sectional side view, Fig. 7 is a sectional plan view of t±, Fig. 8 is a plan view of the float, and Figs. FIG. 13 is an explanatory diagram of a float showing another embodiment.

(17) ... Planting claw (21) ... Rotary case (22) ... Claw case (34) ... Float applicant Yanmar Agricultural Machinery Co., Ltd., 11 10 people j4b

Claims (1)

[Claims] In a device in which planting claws are attached to a rotary case that rotates at a constant speed in one direction via a claw case, even if the rotary case or claw case and the upper surface of a float for field leveling provided on the lower side thereof overlap in side view. A planting device for a rice transplanter, characterized in that a rotary case and a float can be arranged in a state where they do not interfere with each other.