JPH0739209A - Rice transplanter provided with fertilizing apparatus - Google Patents

Abstract

PURPOSE:To obtain a rice transplanter provided with a fertilizing apparatus facilitating the take-out of residual seedlings and enabling the connection and disconnection work of an interlocking mechanism of a planting mechanism and a fertilizing apparatus in high efficiency. CONSTITUTION:This rice transplanter provided with a fertilizing apparatus has a fertilizing apparatus 2 placed above a planting mechanism 5 for planting a seedling taken out from the lower end of a seedling holding table 4 of a seedling planting apparatus 1 and having a fertilizer delivery roll rotating in a state interlocked with the planting mechanism through an interlocking member. The fertilizing apparatus 2 is supported on a vertical frame 23 erected on the frame 3 of the seedling planting apparatus 1 in a state switchable between the lower working position and the upper retracting position. The interlocking member is composed of a rotary shaft to integrate and connect the driving shaft of the planting mechanism 5 with a rotary shaft 18 for driving the delivery roll. A connection part switchable between a state separated in the axial direction and an integrally rotating connected state is placed in the middle of the interlocking part of the interlocking member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mounts a fertilizer application at a position above a planting mechanism for taking out seedlings from the lower end of a seedling stand in a planting device and planting a linking member from the planting mechanism. The present invention relates to a rice transplanter with a fertilizer application, which is configured to rotate the fertilizer feeding roll in the fertilizer application by interlockingly interlocking with each other.

[0002]

2. Description of the Related Art In the above rice transplanter with a fertilizer application, the fertilizer application is conventionally mounted in a fixed position on a support frame erected from a planting transmission case, as disclosed in Japanese Utility Model Publication No. 4-120414. As the linking member, one end is pivotally connected to a portion slightly eccentric from the rotary shaft center of the member that is driven to rotate around the horizontal axis in the planting mechanism, and the other end side is the drive shaft of the fertilizer feeding roll. And a push-pull operation rod pivotally connected to a drive arm that is linked via a one-way rotation clutch.

[0003]

In the above-mentioned conventional structure, since the tall fertilizer application device is present on the rear upper side of the seedling stand over almost the entire planting width, the planting work is completed in a certain field, for example. When performing a work of taking out the placed seedlings that are slightly left on the seedling stand later, this fertilizer application is a hindrance, which makes the work difficult. Therefore,
As a method for solving the above-mentioned problems, a fertilizer application device is provided so as to be vertically slidable with respect to a vertical frame erected from a planting transmission case, and the fertilizer application device is configured to be largely retracted upward when the remaining seedlings are taken out, In addition, in order to release the linkage of the feeding drive linkage member with the slide movement, a structure in which the middle portion of the push-pull operation rod is provided so as to be connectable and separable has been considered. According to the above-mentioned improved structure, the outer side of the lower side of the seedling stand is largely opened by the upward retraction of the fertilizer application device, and the remaining seedlings can be easily taken out, but the linking member is constituted by the push-pull operation rod. Since it has a structure that functions as a rigid body so that it can be pushed and pulled during drive operation and is separated, the structure of the connection part becomes complicated, and the connection and separation work is also troublesome. However, there was still room for improvement. The object of the present invention is to make it possible to easily take out the remaining seedlings by the slide structure of the fertilizer application device, and reasonably configure the synchronous interlocking structure of the feeding roll and the planting mechanism to allow the slide movement of the fertilizer application device. The point is to be able to work efficiently.

[0004]

The feature of the present invention is that in the rice transplanter with a fertilizer application described at the beginning, the fertilizer application work is performed on a lower side of a vertical frame standing from the frame of the seedling planter. The link member is supported so that the vertical position can be freely changed between a position and a position retracted upward.
The drive shaft of the planting mechanism and the drive rotating shaft of the feeding roll are configured to be interlockingly connected to each other, and in the linking intermediate part of the linking member, a state in which they are separated along the axial center direction is integrated. The point is that a connection portion that can be switched between a moving connection state and a movable connection state is provided.

[0005]

[Function] If the fertilizer application is set to the work position on the lower side, the downflow route between the fertilizer feeding section and the field scene where the fertilizer is supplied is shortened, and smooth fertilization work in which fertilizer clogging is unlikely to occur can be performed. , When taking out the placed seedlings that are a little left on the seedling stand after the work is completed, by changing the fertilizer application position to the upper retracted position, the outside of the lower part of the seedling stand is greatly opened, and the seedling removing work can be performed. Easy to do. Moreover, the linking member for linking the planting operation and the fertilizer feeding operation in a synchronized state is provided with a rotary shaft for directly linking the drive shaft of the planting mechanism and the rotary shaft for driving the feeding roll. In this configuration, and the linking member of this rotating shaft structure is separated along the axial direction, it is possible to switch between the linked state and the separated state with a simple structure. The work can be done easily. Further, since the shaft rotation structure is used, the posture is stable even after the separation, and there is no adverse effect such that the linking member in the separated state oscillates in a free state like the pivotally connected structure and interferes with the work.

[0006]

EFFECTS OF THE INVENTION Therefore, during the seedling planting work, the fertilizer application apparatus is retracted upward while the fertilizer clogging and the like are less likely to occur, and the fertilizer application device is retracted upward, so that the seedling stand after the planting work is completed. The remaining seedlings can be taken out easily without being disturbed by a tall fertilizer application device, and when the fertilizer application device is moved back and forth, the separation and connection work of the linking mechanism between the planting mechanism and the fertilizer feeding roll can be performed. It can be done easily and work efficiency is improved.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
Shows the rear part of the rice transplanter with fertilizer application. This rice transplanter is equipped with a fertilizer application device 2 that connects a seedling planting device 1 to a rear part of a traveling machine body (not shown) via a link mechanism so that the planting device can be vertically moved and fertilize a field on the side of each planting row. is there.

The seedling planting device 1 has a seedling stand 4 supported so as to be capable of reciprocating lateral movement with respect to a planting transmission case 3 which also serves as a frame, and one seedling from the lower end of the seedling stand 4. It is provided with a planting mechanism 5 that is taken out and planted in a field, a grounding float 6 that slides while leveling on a field scene, and the like. In the planting mechanism 5, seedling take-out claws 8 are attached to the lateral side of the rear end of the planting transmission case 3 and to both sides of a rotating case 7 whose center is rotatably supported. When the rotation case 7 is rotationally driven by the power transmitted through the chain transmission mechanism 10 in the planting transmission case 3, the planted claw support case 9 thus pivotally supported so as to be rotatable relative to the inside of the case 7. It is configured such that the planting claw support case 9 is relatively rotationally driven so that the planting claw 8 draws a predetermined seedling takeout locus via a gear mechanism (not shown) provided in the above.

The fertilizer applicator 2 is provided with a storage hopper 11 for storing fertilizer and a feeding mechanism 12 for feeding the fertilizer by a predetermined amount from the lower side thereof, and the fertilizer fed by the feeding mechanism 12 is passed through a downflow pipe 13. Groover 1
4 is configured to guide the flow down into the groove created in the field scene. The fertilizer application device 2 is disposed above the planting mechanism 5, and is configured to rotate the fertilizer feeding roll 16 in an interlocking linkage from the planting mechanism 5 via the linking member 15. The linking member 15 is a rotary shaft that interlocks and connects the drive shaft 17 of the planting mechanism 5 and the drive rotary shaft 18 of the feeding roll 16. That is, as shown in FIG. 4, the bevel gear 19 is attached to the rotation case drive shaft 17 supported by the planted transmission case 3, and the bevel gear 20 is attached to the rotation support shaft 18 of the fertilizer feeding roll 16. The bevel gears 21 and 21 attached to both upper and lower ends of the linking member 15 having a transmission shaft structure in which 19 and 20 are arranged along the vertical direction are interlocked with each other and rotated in association with the drive of the planting mechanism 5. The drive shaft 18 is rotationally driven,
The fertilizer is continuously fed and supplied through the fertilizer feeding roll 16.

Further, the fertilizer application device 2 is provided so that the vertical position can be freely changed between a fertilizer feeding operation position on the lower side and a position where it is moved upward and retracted. That is, as shown in FIGS. 2 and 3, the vertical frame 23 is erected from the planted transmission case 3, and the fertilizer application side support frame 24 is slid with respect to the vertical frame 23 via the rolling rollers 25. Locking holes 26, 2 which are freely supported and are formed in the vertical frame 23 at the lower working position and the upper retracted position, respectively.
6 is provided with a lock tool 27 that is engaged with and held in position. In this manner, after the seedling planting work is completed, when the remaining seedlings are present on the seedling placing table 4, the fertilizer application device 2 can be slid to the retracted position so that the remaining seedlings can be easily taken out. I am doing it.

In order to allow the sliding movement of the fertilizer applicator 2 as described above, the middle part of the downflow pipe 13 is constructed so as to be separably connectable with the sliding movement.
Further, the rotating shaft type linking member 15 and the case 29 surrounding the linking member 15 are configured to be separated in the middle of the upper and lower portions as the fertilizer application device 2 slides upward. Further, when the fertilizer application device 2 is slid from the retracted position to the working position on the lower side, the occlusal connecting portion S is configured so that the upper and lower divided portions 15a and 15b of the linking member 15 are automatically brought into the occlusal interlocking state. That is, the lower split portion 15a is attached to the occlusal interlocking cylinder shaft 30.
Is splined by a spring 31 so as to be elastically retractable downward, and the cylindrical shaft 30 and the upper divided portion 15b are interlocked with each other. Therefore, when the fertilizer application device 2 is slid downward and the axis of the tubular shaft 30 and the upper split portion 15b are aligned with each other, the tubular shaft 30 elastically moves upward, and the tubular shaft 30
And the upper divided portion 15b are configured to be in an occlusal interlocking state. With such a configuration, when the fertilizer application device 2 slides, the work of separating and connecting the interlocking mechanism of the feeding mechanism 12 and the planting mechanism 5 is not required, and the work efficiency is significantly improved.

The connecting portion S of the linking member 15 may be separated at the occlusal portion of the lower bevel gear 21 instead of being provided in the middle of the shaft portion.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of the rear part of rice transplanter

FIG. 2 is a side view of the fertilizer application in an upward retracted state.

[Figure 3] Rear view of the fertilizer applicator

FIG. 4 is a vertical cross-sectional side view of a connecting member disposition portion.

[Explanation of symbols]

 1 Seedling planting device 2 Fertilizer application device 3 Frame 4 Seedling stand 5 Planting mechanism 15 Linking member 16 Fertilizer feeding roll 17 Drive shaft 18 Rotating shaft S Connection part

Claims (1)

[Claims] 1. A fertilizer application device (2) is attached to the upper part of a planting mechanism (5) for taking out seedlings from a lower end portion of a seedling placement table (4) in the seedling planting device (1) and mounting the fertilizer application device (2). A rice transplanter with a fertilizer application configured to rotate the fertilizer feeding roll (16) in the fertilizer application (2) in an interlocking linkage from the attachment mechanism (5) via a linking member (15), A vertical frame (23) erected from the frame (3) of the seedling planting device (1) supports the fertilizer application device (2) so that the vertical position of the fertilizer application device (2) can be freely changed between a lower working position and an upper retracted position. In addition, the linking member (15) is composed of a rotation shaft that interlocks and connects the drive shaft (17) of the planting mechanism (5) and the drive rotation shaft (18) of the feeding roll (16). Then, in the middle of the linking of the linking member (15), along the axial direction A rice transplanter with a fertilizer application that is provided with a connection part (S) that can be switched between a separated state and a connected state that rotates integrally.