JPH07112379B2 - Rice transplanter planting device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field] The present invention comprises a seedling placing table that reciprocates left and right, and a planting claw for picking up and planting one seedling from the seedling placing table. TECHNICAL FIELD The present invention relates to a planting device of a rice transplanter for performing rice transplanting work.

"Prior Art" Conventionally, as shown in Japanese Patent Laid-Open No. 60-199309, a rotary case that rotates at a constant speed in one direction is provided, and two planting claws are symmetrically arranged around a rotary shaft center of the rotary case. The deployed technology was developed.

[Problems to be Solved by the Invention] In the above-mentioned conventional technology, the number of planting claws can be increased or decreased to change the number of planting rows by increasing or decreasing the number of rotary cases attached. There is a problem in that it is necessary to remarkably change the planting claw drive system and the like, and the design cannot be easily changed.

"Means for Solving the Problem" Therefore, the present invention is a planting device for a rice transplanter, in which a rotary case that rotates at a constant speed in one direction is attached to a planting case, and the planting claw is attached to the rotary case via the claw case. At
A bearing frame that is rotatably provided in the planted case is provided opposite to the rotary case, and the claw cases are respectively attached to the rotary case and the bearing frame via the claw case shaft and the fixed shaft that are shorter than the planting strips. A claw case shaft and a claw case of approximately the same length as the receiving strut are provided between the claw case shaft and the cam shaft for actuating the planting claws of the claw case in a detachable manner, and the rotary case and the bearing The feature is that the number of claw cases mounted between frames can be increased or decreased.

[Operation] Therefore, the number of claw case attachments can be increased or decreased by attaching or detaching the claw case shaft and the cam shaft to increase or decrease the number of planted claws attached.
The number of planting threads can be easily changed without changing the number of rotary cases installed, and the number of pawl cases that are arranged side by side between the rotary case, the bearing, and the frame can be easily increased, without increasing the number of rotary cases. The planting portion can be easily enlarged in multiple lines, and the multi-row large planting drive structure can be simplified and the manufacturing cost can be easily reduced.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a plan view of the planting section, Fig. 2 is a side view of the riding rice transplanter, and Fig. 3
The figure shows the same plane. In the figure, (1) is a traveling vehicle on which an operator rides, and the rear end of a vehicle body frame (3) carrying an engine (2) is connected to a mission case (4). The front wheels (6) for paddy field traveling are supported on both front sides of (4) through front axle cases (5), and a transmission case (7), which is an axle case, is connected to both rear sides of the transmission case (4). Then, the rear wheel (8) for traveling the paddy field is supported at the rear end of the rolling case (7). And the hood (9) that covers the engine (2)
The seedling stand (10) is attached to the outside on both sides, and the transmission case (7) and the like are covered with a vehicle body cover (12) forming a step (11), and a driver's seat (13) is provided above the vehicle body cover (12). ) 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, in the figure, (15) is a planting part having a multiple row planting table (16) and a plurality of planting claws (17) ... The (16) is supported by the planting case (20) via the guide rail (18) and the guide rail (19) so as to be slidable left and right, and is rotated at a constant speed in one direction as shown in FIG. The rotary case (21) is arranged in the planted case (20), and the rotary case (21) is provided with claw cases (22) and (22) symmetrically with respect to the axis of the rotary shaft. Attach the planting claw (17) to 22). Further, a support frame (24) is provided on the front side of the planting case (20) through a center pin (23), and a top link (25) is provided.
The support frame (24) is connected to the rear side of the traveling vehicle (1) through the three-point link mechanism (27) including the lower link (26), and the planting portion (15) is connected through the link configuration (27). Equipped with a lifting cylinder (28) for lifting and lowering the rear wheel (6)
(8) is driven to move at a substantially constant speed, and at the same time, the seedlings for one plant are taken out by the planting claws (17) from the seedling table (16) that slides back and forth from side to side, and the rice planting work is continuously performed. Configure to do.

Further, in the figure, (29) is a traveling speed change lever, (30) is a planting lifting lever, (31) is a planting sensitivity adjusting lever, (32) is a traveling clutch pedal, (33) and (33) are left and right brake pedals,
Denoted at (34) are equalizing floats for flattening the surface, which support the floats (34) below the planting case (20) via a planting depth adjusting link (35) and the like.

Further, as shown in FIG. 4, the nail case (22) is provided with respect to the seedling taking-out port (37) of the seedling taking-out plate (36) provided at the lower end of the seedling placing table (16).
The two planting claws (17) (17) provided on the rotary case (21) are alternately moved via the (22), and the two planting claws (17) are rotated by one rotation of the rotary case (21). According to (17), two seedlings are planted.

Next, as shown in FIG. 5 and FIG. 6, the planting claw drive shaft (38) is rotatably supported at the rear end of the planting case (20),
The rotary case (21) is fixed to the drive shaft (38), and the sprocket (40) for suspending the planting pawl drive chain (39) is pivotally supported in the middle of the drive shaft (38) to attach the chain (39). It is linked to the drive shaft (38).

Further, the sun gear (46) is loosely fitted to the planting pawl drive shaft (38), and the sun gear (46) is moved through the phase adjusting lever (47).
The sun gear (46) with the same number of teeth as the sun gear (46).
8) and a planetary gear (49). The idle gear (48) is supported by the intermediate shaft (50), and the planetary gear (49) is supported by the claw case shaft (51) fixed to the claw case (22) inside the rotary case (21). In addition, the respective gears (46) (48) (49) are eccentrically supported by the respective shafts (38) (50) (51), and the sun gear (46) also includes idle gears (48) (48). The planetary gears (49) and (49) are constantly meshed with each other via the. The sun gear (46) is fixedly supported on the planting case (20), and the rotary case (21) is mounted via the planting claw drive shaft (38). Rotate at a constant speed,
The planting claws (17) (17) at both ends of the rotary case (21) are alternately moved to the seedling take-out port (37) at the lower end of the tilt of the seedling mounting table (16), and are interlocked with the rotation of the rotary case (21). Through the gears (46) (48) (49) and the claw case shaft (5
Rotate 1) at a non-constant speed so that the rotation of the nail case shaft (51) is slower than the rotation of the rotary case (21) after cutting the seedlings on the seedling mounting table (16) to the rice field, and planting seedlings on the rice field. The rotation of the claw case shaft (51) is made faster than the rotation of the rotary case (21) between the later and the seedling take-out port (37), and the seedling take-out port (37) is rotated.
The rotation of the rotary case (21) and the rotation of the claw case shaft (51) are made to be approximately the same in the vicinity and near the paddy planting part, and the planting claw (1
The drive shaft (38) at the center of the rotary case (21) is positioned inside the circular shape in side view formed by the planting locus of 7).

Further, the position adjusting lever (52) is attached to the rotary case (21).
And fix one end of the cam shaft (53) through the
The cam shaft (51) to be loosely fitted is penetrated through the middle of the cam shaft (53), and the cam shaft (56) is connected to the push rod (54) connected to the push-out claw (17a) for forced planting via the push arm (56). 53) are connected, the push rod (54) is advanced through the cam shaft (53) and the push arm (55) when the planting claw (17) plunges into the rice field, and is planted by the pushing claw (17a). The seedlings sandwiched between the nails (17) are extruded into the soil.

Further, a bearing frame (56) arranged to face the rotary case (21) is supported by the planting case (20) by a support shaft (57), and a cam shaft (53) is attached to a fixed shaft (58) of the frame (56). ) The end portion is rotatably fitted and the end portion of the claw case shaft (51) is rotatably supported by the fixed shaft (58). The claw case shaft (51) is attached to the claw case (22). Bolts (59) and detachably connect the camshaft (5
3) are separatedly separated by a key by the key (60), and two sets of 8 claws are installed on the core of the claw case shaft (51) installed between the rotary case (21) and the bearing frame (56). Attach 16 planting claws (17) to the multiple type.

Also, as shown in Fig. 1, left and right planting cases (20) (20)
The central planting case (20) and the central planting case (20) are connected by a horizontal shaft case (20a) that can be separated for each line, and the transmission shaft (61) that can be separated for one line is connected for the horizontal shaft case (20a). Sprocket (62) (63), chain (64), and safety clutch (65) that are inserted into the center of the planting case (20).
The planted pawl input shaft (66) is connected to the transmission shaft (61) via the shaft, and the planted pawl drive chain (39) is suspended on the sprocket (67) of the transmission shaft (61). The planting claws (17) for the rows are attached to the same rotary case (21) so that they can be increased and decreased, and all the planting claws (17) can be driven by one path of the planting claw drive chain (39). Is configured.

As is apparent from the above, the rotary case (21) that rotates in one direction at a constant speed is attached to the planting case (20), and the planting claw (17) is attached to the rotary case (21) via the claw case (22).
In a planting device of a rice transplanter to be mounted, a bearing frame (56) rotatably provided in the planting case (20) is installed opposite to the rotary case (21), and a claw case shaft (51) shorter than a planting space is provided. And claw cases (22) and (22) on the rotary case (21) and the bearing frame (56) via the fixed shaft (58)
And the claw case shaft (51) and the claw case (22), which are approximately the same length as the planting strip, are detachably mounted between the claw cases (22) and (22). Attached Claw (17)
The cam shaft (60) for activating the claw case is detachably inserted into the claw case shaft (51) so that the number of claw cases (22) mounted between the rotary case (21) and the bearing frame (56) can be increased or decreased. There is.

The present embodiment is configured as described above, and the claw case shaft (5
1) and cam shaft (53) are removed, and rotary case (21)
The number of planting claws (17) mounted between the bearing frame (56) and the bearing frame (56) can be increased or decreased, and the horizontal shaft case (20a) and transmission shaft (6)
1) is removed and the space between the left and right planting cases (20) (20) is changed according to the number of planting claws (17) installed. As shown in FIG. 17) ..., as shown in FIG. 8, 8 planting nails (17) for 4 rows, and 12 planting nails (17) for 6 rows as shown in FIG. It is attached to the rotary case (21) to form the planting part (15) of even planting strips.

Further, FIGS. 10 to 12 show a modified example, in which a horizontal axis case (20b) having a different size from the horizontal axis case (20a) of FIG. 7 is provided so as to face the center planting claw (17). By arranging the central planting case (20), the planting part (15) of an odd number of planting strips can be configured. As shown in FIG. ), And as shown in Fig. 11, 10 planting claws (17) for 5 rows, and 14 planting claws (17) for 7 rows as shown in Fig. 12, rotary case It can also be arranged between the (21) and the bearing frame (56).

Further, FIGS. 13 and 14 show a modified example of the side drive structure, in which a bearing portion (20c) is continuously provided behind the planting case (20) in the center, and a shaft is provided on both sides of this bearing portion (20c). (57)
The bearing frames (56) (56) are mounted via the (57), and the planting claw drive chains (39) (39) are installed inside the left and right planting cases (20) (20) respectively. Case (20)
The rotary cases (21) and (21) are respectively supported by the (20), and the planting units (15a) (15a) are provided with three planting claws (17) for three rows as shown in FIG. 2 sets are arranged side by side to form the 6-row planting part (15), while 4 rows 8 as shown in FIG.
Planting unit (15a) (15) with a planting nail (17) ...
Two sets of a) will be installed side by side to form an 8-row planting section (15).

Further, FIGS. 15 to 18 show a modification of the center drive structure, in which the planting claw drive chain (39) is inserted into the planting case (20d) extending rearward from the center of the planting section (15). The left and right rotary cases (21) (2
1) is provided, and the bearing frame (56) (5
6) is arranged, and the planting units (15a) (15a) are arranged on both sides of the chain (39) with the 15th
As shown in the figure, 2 sets of 4 planting claws (17) ...
The row planting unit (15a) (15a) is configured as a four-row planting section (15), and as shown in FIG. 16, four rows for two rows and six rows for three rows 6
Book-planting claws (17) ... constitute two-row and three-row planting units (15a) (15a) to form a five-row planting section (15), and as shown in FIG. Two sets of three-row planting units (15a) (15a) are constructed by book-planting claws (17) to form a six-row planting section (15), and as shown in FIG. Two sets of four-row planting units (15a) (15
(a) is configured as an eight-row planting part (15), and the drive system for the planting claw (17) and the rotary case (21) is configured to be the shortest.

Further, FIGS. 19 and 20 show a modified example of a structure in which a center drive and a side drive are combined, and a central planting unit (15b) provided with four planting claws (17) ... The planting claw drive chains (39) (39) are extended, and the left and right planting units (15a) (15a) are arranged on both outsides thereof. As shown in FIG. While three sets of planting units (15a) (15a) (15b) provided with attachment claws (17) ... are arranged side by side to form a 6-row planting part (15), as shown in FIG.
Two sets of 6 planted nails (17) ... and 2 planted nails (1
7) 3 sets of planting units (15a) (15a) (15
b) are arranged side by side to form an eight-row planting section (15), and the planting claw drive system path is branched left and right.

"Effects of the Invention" As is apparent from the above embodiments, according to the present invention, the rotary case (21) that rotates at a constant speed in one direction is attached to the planting case (20), and the claw case (22) is attached to the rotary case (21). In the planting device of the rice transplanter that attaches the planting claw (17) via
A bearing frame (56) that is rotatably provided in the planting case (20) is placed opposite to the rotary case (21), and the rotary is provided via a pawl case shaft (51) and a fixed shaft (58) that are shorter than the spacing between the planting lines. The claw cases (22) and (22) are attached to the case (21) and the bearing frame (56) respectively, and the claw cases (22)
A claw case shaft (51) and a claw case (22), which are approximately the same length as the planting line, are detachably provided between the (22) and the claw case (2
The cam shaft (60) that differentially moves the planting pawl (17) of 2) is detachably inserted into the pawl case shaft (51), and the pawl case (22) between the rotary case (21) and the bearing frame (56). ) The number of attachments can be increased or decreased. By attaching and detaching the claw case shaft (51) and the cam shaft (60), the number of claw case (22) attachments can be increased or decreased to increase the number of planted claws (17). , The number of planting threads can be easily changed without changing the number of rotary cases (21) installed, and the claw cases (22) can be easily installed side by side between the rotary case (21) and the bearing frame (56). It is possible to increase the number of multiple-rows of the planting part (15) easily without increasing the number of rotary cases (21), simplifying the multiple-rows large-sized planting drive structure and reducing the manufacturing cost. Is what you can do.

[Brief description of drawings]

FIG. 1 is a plan view of a planting part showing an embodiment of the present invention, and FIG.
The figure is a side view of the whole, FIG. 3 is the same plan view, FIG. 4 is a side view of the planting portion, FIG. 5 is a partial side view of the same, FIG. 6 is a sectional plan view, and FIGS. Is a plan view showing an example of changing the number of planting rows of the side drive structure shown in FIG. 1, FIGS. 13 and 14 are plan views showing a modification example of the side drive structure, and FIGS.
The figure is a plan view showing an example of changing the number of planting threads of the center drive structure, and FIGS. 19 and 20 are plan views showing a modification of the center drive structure. (17) …… Planted claw (20) …… Planted case (21) …… Rotary case (22) …… Claw case (51) …… Claw case shaft (56) …… Bearing frame (58) …… Fixed shaft (60) …… Cam shaft

Claims (1)

[Claims] 1. A rice transplanter in which a rotary case (21) that rotates at a constant speed in one direction is attached to a planting case (20), and the planting claw (17) is attached to the rotary case (21) via a claw case (22). In a planting device for a machine, a bearing frame (56) rotatably provided in the planting case (20) is provided opposite to the rotary case (21), and a claw case shaft (51) and a fixed shaft shorter than the planting line are provided. Rotary case through (58) (21)
Also, the claw cases (22) and (22) are attached to the bearing frame (56), respectively, and the claw case shaft (51) and the claw case (22) between the claw cases (22) and (22) are approximately the same length as the planting line. ) Is detachably provided, and the cam shaft (60) for actuating the planting claw (17) of the claw case (22) is detachably inserted into the claw case shaft (51), and the rotary case (21) and the bearing are attached. Frame (5
A planting device for a rice transplanter characterized in that the number of nail cases (22) between 6) can be increased or decreased.