JPH07170821A - Seedling transplanter - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] A compact seedling planting unit is provided behind the vehicle body to facilitate transplantation work from the driver's seat. [Construction] In a seedling transplanter 1 equipped with a seedling planting section 4 via a lifting link 3 at the rear part of a traveling vehicle body 2, a hitching member supported by the lifting link 3 is connected to a planting main body frame, The planting main drive case 37 and the seedling picking section are supported, and the seedling placing section is supported by side frames integrally formed on the left and right outer sides of the main body frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear-mounting type seedling transplanting machine in which a rear part of a vehicle body is towed with a seedling transplanting machine to perform seedling planting work.

[0002]

2. Description of the Related Art In this seedling transplanting machine, the seedling planting section becomes large in size because it requires a space for laterally feeding the seedling mounting table in the left-right direction or the front-rear direction, and this tendency tends to occur as the number of rows increases. There was a problem that became more remarkable.

[0003]

For this reason, the mutual balance between the vehicle body and the seedling planting section may be unbalanced, or the seedling splicing from the driver's seat to the seedling planting section or the visibility may be poor. However, there is a problem that not only the stability and safety are lacking, but also the work efficiency is poor.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a seedling transplanting machine having a rear part of a traveling vehicle body equipped with a seedling planting portion through an elevating link, a hitching member supported by the elevating link connects a planting main body frame. Then, the main body frame supports the planting main drive case and the seedling picking section, and the side frames integrally formed on the left and right outer sides of the main body frame support the seedling placing section. The machine is equipped with a compact and well-balanced seedling planting section that feeds the seeds in the front-rear direction, making it easy to replenish seedlings and check work from the driver's seat while maintaining good maneuverability of the traveling vehicle. Therefore, it is possible to enable a transplanting work with excellent work efficiency and safety.

In addition, the seedling planting section has a multi-row transplanting unit in the left-right direction, and each transplanting unit is provided so that the standing posture of the planting can be adjusted to the left and right. The reduced and compact structure facilitates the transplant assisting work from the driver's seat, and also facilitates the adjustment of the striation of each transplant unit, thereby improving the workability.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view of the planting portion, and FIG. 2 is a plan view thereof. In the figure, (1) is behind a tractor (2) which is a traveling vehicle body, and a parallel link mechanism (3) which is a lifting link is interposed. In a transplanter equipped with a planting section (4) that can be raised and lowered, a planting hitch member (5) attached to the rear end of the parallel link mechanism (3) is attached to the planting main frame (6) of the planting section (4). And the left and right transplantation units (7a) and (7b) for performing the two-row planting work are supported by the main frame (6).

Each of the transplanting units (7a) and (7b) has a seedling picking nail (10) for picking up one pot of seedlings from the seedling tray (9) on the seedling mounting table (8), and the seedling picking nail (10). ), A hopper-shaped seedling planting claw (11) for planting a pot seedling for one strain, and a cultivating soil roller (12) for covering the seedling after planting with a lifting mechanism (13). When the planting claw (11) moving up and down along an elliptical locus is lifted, the seedlings supplied and dropped from the seedling picking claw (10) are received, and at the time of descending, the planting holes are opened and the planting holes are opened. I am configuring.

As shown in FIGS. 3 to 8, the seedling table (8)
Is an elastic seedling tray (9) which is installed in a substantially vertical shape in a longitudinal and longitudinal direction so as to be fed laterally in the longitudinal direction of the machine body. The main body frame (14) of the transplanting units (7a) and (7b) is ) And a guide shaft (16) fixed to a side frame (14a) integrated with the side frame (14a) slidably support the upper and lower back sides of the seedling stand (8), and the lateral feed screw shaft (17). ) To the base mover (18),
By rotating the screw shaft (17), the seedling mount (8) is reciprocally moved forward and backward.

The seedling table (8) has a front side plate (19).
The vertical feed drive and idle sprocket (23) (24) are provided between the upper and lower sides of the rear plate (20) and the vertical feed drive and idle sprocket shafts (21) (22), and these sprocket (23) (24) are provided. The floating sprocket (25) (26) (27) for the extension seedling stand is provided on the upward extension line of the sprocket via the sprocket shafts (25a) (26a) (27a) and between each sprocket (23)-(27). A vertical feed chain (29) having a vertical feed pin (28) to be engaged with each cell outer bottom depression of the seedling tray (9) is stretched,
The vertical feed drive mechanism (32) is operated by the vertical feed cam (31) of the vertical feed drive shaft (30) interlocking with the screw shaft (17) at the end of the front and rear transverse feed of the seedling mounting table (8), and the sprocket (23). ) Is rotated by a certain amount to vertically feed the seedling tray (9).

Further, the PTO shaft (33) of the tractor (2)
Drive force from drive shaft (34) and input shaft (35)
And a drive frame (37) for inputting to the drive shaft (36) through the bevel gear (35a), and a drive system (38) for planting the nails (11) for planting the main body frame (14) Then, the spline engagement type one-rotation clutch (40) of the planting drive case (37) is attached to the planting output shaft (39) of the planting drive system (38) for driving the planting claw (11).
And a transmission case with a plant (44) for interlocking and coupling the drive shaft (36) through the deceleration counter shafts (41) (42) and the limiter type unit clutch (43) and input-connecting the planted output shaft (39). ) Is connected to the output shaft (45) of the limiter type safety clutch (46), the rotary case (47) and the planting arm (48) constituting the lifting mechanism (13), and the planting claw (11) is interlocked. The upper and lower planting operation of the nail (11) is performed.

Furthermore, a seedling taking drive system (52) having a seedling taking drive shaft (51) for driving the seedling taking arm (49) of the seedling taking nail (10) and the rotary case (50),
The lateral feed screw shaft (1
7) A switching gear case (53) for changing gears, and a vertical feed chain (29) for each left and right lateral feed end of the seedling stand (8).
Drive sprocket shaft (21) and seedling extraction claw (10)
Seedling table drive system which is a seedling placing section having a vertical feed drive shaft (30) and the like for rotating the seedling pushing cams (55) of the seedling pushing pins (54) that act from below the seedling placing table (8) when picking up the seedlings. (56), a seedling-taking drive take-out shaft (57) interlockingly connected to the counter shaft (42) of the drive case (37), a continuously variable stock belt (58) for plant stock adjustment, and a planting plant on the take-out shaft (57). Clutch shaft (60) for interlocking connection via an attached clutch (59) (also functions as a limiter type safety clutch)
And rotating the clutch shaft (60) by rotating the seedling-taking drive shaft (5
1) is provided between the seedling taking output shaft (61), the operation cam (62) for operating the one-rotation clutch (40) and the seedling taking output shaft (61), and the seedling taking nail (10) and the seedling planting. Attached claw (1
1) A seedling taking drive system (64) which is a seedling taking section having a planting timing mechanism (63) for properly maintaining the operation timing with 1), and the seedling taking output shaft (61) of the drive case (37) The output driving force is separated by the seedling taking drive shaft (51) into a seedling taking drive system (52) and a seedling stand drive system (56), and each drive is performed. The left and right seedling mounting tables (8) are arranged such that when one moves rearward, the other moves forward so that the movements are in opposite directions to suppress the occurrence of vibration.

The left and right transplantation units (7a) (7
b) is provided so that it can be moved laterally and laterally so as to be adjustable for the striation, and the planting drive system (38) is vertically rotatable within a certain range around the planting output shaft (39). A pivotal support plate that can follow the unevenness of the ridges and that swingably supports around the hexagonal drive shaft (36) of the planting drive case (37) at the lower front end of each transplant unit (7a) (7b). (65) through a fastening plate (66) and a tightening bolt (67), and a horizontal frame (6) at the front end of the main frame (6).
While the left and right positions are connected to and supported by a), the grounding load change state of the soil roller (12) connected to the planted transmission case (44) via the guard arm (68) and the planting depth lever (69) is changed. , The planting lifting device (71) of the tractor (2) that lifts and lowers the planting part (4) by detecting it with the ground pressure sensor (70) provided on the output shaft (39) of the ground pressure sensor (70). It drives on the basis of the detection to perform the pitching control of the planting part (4).

As shown in FIGS. 6 to 7, in the rear-view drive system (38), a frame frame (71) supporting the drive system (38) in a rear view is pivoted to the hitch member (5) side as a fulcrum shaft. (7
It is configured so that the left and right tilt angles can be freely adjusted via 2), and the striation adjustment can be performed by adjusting the right and left angle of the left and right planting drive system (38).

As shown in FIG. 5, the empty tray collecting member (73) provided on the rear side of the seedling placing table (8) is pivoted on the collecting guide (74) at the end of the vertical feeding of the vertical feeding chain (29). It is provided so as to be openable to the left and right outside via a shaft (75), and when the transplanting machine (1) is running, for example, the recovery lever (76) is provided in an upper position on the storage lever (76) provided on the upper side. 73) While the front end side is engaged and held to reduce the width of the left and right airframes, at the time of transplantation work, the recovery member (73) is opened to the left and right as shown by the phantom line in the figure to expand the recovery space and expand the empty tray ( 9a) is configured so as to enable multiple collection.

The present embodiment is configured as described above, and when the seedling placing table (8) in each of the transplanting units (7a) and (7b) is moved forward and backward, the seedling take-out claws from the front and rear direction of the seedling tray (9). (10) and the seedling extruding pin (54) are synchronously operated to take out seedlings, and the taken-out seedlings are inherited by the nails (11) for planting seedlings.

Then, behind the tractor (2), a planting section (4) for moving the vertically elongated seedling table (8) back and forth is arranged,
The main body frame (14) of the transplant unit (7a) (7b) on the left-right center side is provided with main drive parts such as the transplant drive case (37) and the planting drive system (38), and is provided outside the main frame (14). Side frame (14a) integrally formed
A seedling table drive system (56) such as a seedling table (8) is provided in the to provide a compact structure in which the right and left balance of the planting section (4) is good, and the driver's seat (2a) of the tractor (2). Also, the workability can be improved by facilitating seedling supply and work confirmation.

9 to 10 show another example of the structure of the empty tray collecting device. An empty tray storing part (77) having a step is provided at the rear end of the collecting guide (74), and the storing part ( 77) An open / close holding plate (78) for holding the left and right ends of the empty tray (9a) from below is provided at the open end so that the entire empty tray (9a) is placed on the holding plate (78).
The sensor (79) detects this, and the solenoid (80) opens the holding plate (79) left and right, and the lower storage part (77).
The empty trays (9a) are dropped in the above to be stacked and stored in a multi-layered form.

Reference numeral (81) is a supply guide plate for the seedling tray (9), and an auxiliary guide plate (82) is slidably provided on the upper end of the guide plate (81), and these guide plates (81) (82) are provided. The guide length of is configured to be appropriately expanded.

FIG. 11 shows the left and right transplantation unit (7a).
The drive cases (37) with plants (7b) are combined into one center case (37a) at the center, and the seedling drive system (6)
4) is also integrated into one and provided on the main body frame (14) of the transplantation units (7a) and (7b) to make the planting part (4) lighter and more compact, and to stably maintain the machine body. It is shown.

[0020]

As is apparent from the above embodiments, the present invention is directed to a seedling transplanting machine (1) equipped with a seedling planting section (4) at the rear of a traveling vehicle body (2) through an elevating link (3). , The planting main body frame (14) is connected to the hitch member (5) supported by the lifting link (3), and the main body frame (1)
4) support the main drive case (37) with planting and the seedling picking section (64), and support the seedling placing section (56) on the side frames (14a) integrally formed on the left and right outer sides of the main body frame (14). Therefore, the rear part of the traveling vehicle body (2) is equipped with, for example, a seedling mounting table (8) and a seedling planting section (4) of a method of laterally feeding in a compact and well-balanced manner,
The maneuverability of the traveling vehicle body (2) is improved, and the driver's seat (2a) facilitates seedling replenishment and work confirmation.
It is possible to enable transplant work with excellent work efficiency and safety.

In addition, the seedling planting section (4) has a multi-row transplantation unit (7a) (7b) in the left-right direction, and each transplantation unit (7a) (7b) tilts the planting standing posture to the left and right. Since it is adjustable, the seedling planting part (4) has a compact structure with a reduced front-rear width, and the driver's seat (2
Not only the transplanting assisting work from a) is facilitated, but also the striation adjustment of each transplantation unit (7a) (7b) is facilitated, and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a planting section.

FIG. 2 is an overall plan view of a planting part.

FIG. 3 is an overall rear view of the planting section.

FIG. 4 is a plan view of a transplanter drive unit.

FIG. 5 is a side view of a seedling mounting table.

FIG. 6 is a side view of a nail portion with a seedling plant.

FIG. 7 is a rear view of the nail portion with seedlings.

FIG. 8 is an explanatory diagram of a drive system.

FIG. 9 is a side view illustrating an empty tray collecting unit.

FIG. 10 is a rear view of an empty tray collecting unit.

FIG. 11 is an explanatory diagram of another drive system.

[Explanation of symbols]

 (1) Transplanter (2) Tractor (traveling vehicle) (3) Parallel link mechanism (elevating link) (4) Planting part (5) Hitch member (8) Seedling stand (14) Main frame (14a) side frame (37) Drive case (56) Seedling table drive system (seedling placement section) (64) Seedling drive system (seedling section)

Claims (2)

[Claims] 1. In a seedling transplanter equipped with a seedling planting section at the rear part of a traveling vehicle body via an elevating link, a hitching member supported by the elevating link connects a planting main body frame to the main body frame. A seedling transplanter, characterized in that it is provided so as to support the drive case and the seedling picking section, and to support the seedling placing section on side frames integrally formed on the left and right outer sides of the main body frame. 2. A seedling transplanting machine, wherein the seedling planting section has a multi-row transplanting unit in the left-right direction, and each transplanting unit is provided so that the standing posture of the planting can be adjusted to the left and right.