JPH0620369B2 - Rice planting equipment for rice transplanters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rotary type for planting rice seedlings in a rice transplanter after dividing the seedlings one by one from a seedling mat on a seedling table and then planting the seedlings in a field. The present invention relates to a seedling planting device.

[Conventional technology]

Conventionally, this type of rotary seedling plant has been used as the actual device
As described in Japanese Patent No. 8104, a rotary case is attached to a rotary shaft that is horizontally supported by a rice transplanter machine and is driven to rotate by power transmission from a power source. Is to support the planting shafts at equal positions on the circumference centered on the rotation axis, and to mount the planting rods with the split claws on the respective planting shafts, the split claws on the planting rods are attached to the machine body. While being installed so as to face the seedling mounting table, a non-rotating sun gear is arranged in the center of the rotating body case with respect to the rotating body case. By transmitting gears between the planetary gears and the intermediate gears in the rotating body case, each of the planting rods is the same as in the case of the conventional vertical rocking type seedling planting apparatus only by the rotational movement of the rotating body case. Keep the posture of facing the seedling mount. It is configured to pivot movement in the vertical direction.

[Problems to be solved by the invention]

However, in this conventional rotary seedling planting device, since the intermediate gear is located at a portion on a line connecting the rotary shaft and the planting shaft, the distance from the rotary shaft to the planting shaft becomes long, so There is a problem that the body case becomes large, and eventually the rotary type seedling plant becomes large and heavy.

An object of the present invention is to reduce the size and weight of the rotary type seedling planting device.

[Means for solving problems]

In order to achieve this object, the present invention is to horizontally support the body of a rice transplanter, and to attach a rotating body case to a rotating shaft that is driven to rotate by power transmission from a power source, the rotating body case, Planting shafts are rotatably supported at equal positions on the circumference centered on the rotation axis, and a planting rod with a split claw is attached to each planting shaft, and the split claws on the planting rod are attached to the machine body. On the other hand, a sun gear that is non-rotating with respect to the rotating body case is arranged at the center position in the rotating body case while being mounted so as to face the stand, and the sun gear and the planetary gear on the planting shaft are arranged. In the seedling planting device, in which a gear transmission between the rotating shaft and the planting shaft is performed through an intermediate gear in the rotating body case, the intermediate gear is arranged at a position displaced laterally with respect to a line connecting the rotating shaft and the planting shaft. It was configured to be installed.

[Work]

When the rotator case rotates, the planting shaft that interlocks with the non-rotating sun gear provided at the center through the intermediate gear and the planetary gear rotates in the direction opposite to the direction of rotation of the rotator case. The planting rod with the split claw attached to
In a state of facing the direction of the seedling mounting table will be swiveling around the center of rotation of the rotating body case,
During the turning motion, when descending from the side facing the seedling mounting table from top to bottom, one seedling is split from the seedling mat on the seedling mounting table by the split claw at the tip of the planting rod, and then the lower limit of the descending The planting operation is carried out in the vicinity of the field, and thereafter the action of rising from the field scene is repeated to perform seedling planting work.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 is a transmission case in the body of a rice transplanter,
A boss body 2 horizontally protrudes from a side surface of the transmission case 1, and the power of an engine (not shown) mounted on the rice transplanter body is transmitted to the inside of the boss body 2 through a sprocket 3 '. The hollow rotary shaft 3 which is driven to rotate is inserted,
A hollow rotating body case 4 is fitted to the protruding end of the rotating shaft 3 from the boss body 2, and the rotating body case 4 is configured to rotate in the right direction of arrow A in a side view. ing.

A central shaft 5 is rotatably inserted into the hollow rotary shaft 3 with respect to the rotary shaft 3, and a protruding end of the central shaft 5 into the rotary body case 4 is attached to the rotary body case 4. On the other hand, a non-rotating sun gear 6 is fitted.

At the inner end of the transmission case 1 of the central shaft 5 to which the sun gear 6 is attached, a phase adjusting mechanism 7 that holds the sun gear 6 unrotatably and adjusts the phase position of the sun gear 6 is provided. There is. The phase adjusting mechanism 7 is configured as follows, for example. That is, a sleeve 8 slidably fitted on the central shaft 5 is provided, and a pin 9 integral with the sleeve 8 is provided.
Is engaged with the groove 10 formed in the central shaft 5, while the lever 11 projecting from the sleeve 8 is connected to the screw shaft 12 provided outside the transmission case 1, so that the central shaft 5 and the sun are connected. While holding the gear 6 non-rotatable, the groove 10 in the central shaft 5 is inclined with respect to the axis of the central shaft 5, and the sleeve 8 slides by the turning operation of the screw shaft 12. Is configured to adjust the phase position of the sun gear 6.

The support shafts 13 are provided at both left and right ends in the rotary body case 4, that is, at two locations of a circumferential plant having a radius R centered on the center of the rotary shaft 3.
Is rotatably supported in parallel with the central axis 5 with respect to the rotating body case 4, a hollow planting shaft 14 is rotatably fitted to the spindle 13, and one end of the planting shaft 14 is rotated. The planting rod 15 which projects to the outside of the body case 4 and has the split claw 16 at the projecting end is provided with the split claw 16 in the planting rod 15.
Is attached so as to face the seedling mounting table 17, while a line 21 connecting the central shaft 5 and the planting shaft 14 is provided in the rotating body case 4 at an intermediate position between the central shaft 5 and the planting shaft 14.
The intermediate shaft 18 is rotatably supported parallel to both shafts at a position laterally displaced by an appropriate distance (l) with respect to the intermediate shaft 1.
8 is an intermediate gear 19 that constantly meshes with the sun gear 6.
Is rotatably provided.

Then, on the planting shaft 14 in the rotating body case 4,
A planetary gear 20 that is always meshed with an intermediate gear 19 on the intermediate shaft 18 is fitted and interlocked so that the planting shaft 14 makes one rotation by one rotation of the rotating body case 4.

In this configuration, when the rotating body case 4 revolves in the right direction of the arrow A by the rotating shaft 3 thereof, the intermediate gear 19 meshing with the sun gear 6 that cannot rotate with respect to the transmission case 1 rotates with the revolution of the rotating body 4. And rotates in the right direction of arrow B by the same rotation angle as that of the revolution. The planting shaft 14 that interlocks with the intermediate gear 19 via the planetary gear 20 rotates in the left direction of the arrow C, that is, in the direction opposite to the revolution direction of the rotating body case 4 by the rotation of the intermediate gear 19, so that the planting shaft 14 The planting rod 15 to be attached to will rotate about the rotating shaft 3 while being oriented in the direction of the seedling table 17, and the split claw 16 in the planting rod 15 will be shown in FIG. 1 and FIG. As shown by the chain double-dashed line,
I will draw 2.

During this turning motion, when the side facing the seedling mounting table 17 is lowered from the top to the bottom, one seedling is split from the seedling mat on the seedling mounting table 17 at the tip of the dividing claw 16 and then the The seedlings are planted in the field scene 23 in the vicinity of the lower limit of descending, and then exercised so as to rise above the field scene 23 to perform seedling planting work.

In addition, the number of the planting rods 15 is not limited to two in the above-mentioned embodiment, but it is also possible to make one, or to make a plurality of three or more equally divided in the circumferential direction. As in the example, the mounting base of the planting 15 on the planting shaft 14 and the portion to which the split claw 16 is attached or the tip of the split claw 16 are appropriately dimensioned in the axial direction of the rotary shaft 3 in the plan view of FIG. By shifting only S), it is possible to avoid collision interference between the tip of the split claw 16 and the base of the planting rod 15.

〔effect〕

As described above, according to the present invention, the planting rod provided in the rotating body case is rotated by the non-rotating sun gear at the center of the rotating body case, the planetary gear on the planting shaft, and the intermediate gear meshing with these gears. In a configuration in which the intermediate gear is pivotally moved in the vertical direction with the posture state facing the direction of the seedling mounting table in the same manner as in the case of the conventional vertical rocking type seedling planting apparatus only by the rotational movement of the body case, the intermediate gear, By arranging at a position displaced laterally with respect to the line connecting the rotating shaft and the planting shaft, the distance from the rotating shaft to the planting shaft can be determined by comparing the intermediate gear with the rotating shaft and the planting shaft as in the conventional case. The rotary type seedling planting device can be remarkably reduced in size and weight because it can be made shorter than the case of being located on the connecting line, in other words, the length of the rotating body case can be made shorter.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a front view, Fig. 2 is a plan view, Fig. 3 is an enlarged sectional view taken along line III-III in Fig. 1, and Fig. 4 is IV- in Fig. 3. FIG. 4 is a sectional view taken along line IV. 1 ... Transmission case, 3 ... Rotating shaft, 4 ... Rotating body case, 5 ... Central shaft, 6 ... Sun gear, 14 ... Planting shaft, 15 ... Planting rod, 16 ... Dividing claw, 19 …… Intermediate gear, 20 …… Planetary gear.

Claims (1)

[Claims] 1. A rotary body case is attached to a rotary shaft that is horizontally supported by a rice transplanter machine body and is rotationally driven by power transmission from a power source, and the rotary body case is centered on the rotary shaft. Support the planting shaft in equal parts on the circumference of
The planting rods with the split claws are attached to the planting shafts so that the split claws in the planting rods are directed toward the seedling mounting table attached to the machine body, while the center position in the rotating body case is In a seedling planting device, in which a non-rotating sun gear is arranged with respect to a rotating body case, and a gear is transmitted between the sun gear and a planetary gear on the planting shaft via an intermediate gear in the rotating body case. The seedling planting device for a rice transplanter, wherein the intermediate gear is arranged at a position displaced laterally with respect to a line connecting the rotating shaft and the planting shaft.