JPS601537Y2 - Drive structure in seedling feeding device of transplanter - Google Patents

Description

[Detailed description of the invention] This invention is a seedling feeding device for a transplanter that is composed of a vertical conveyance belt device and a horizontal conveyance seedling box device. This invention relates to a drive structure that causes intermittent reciprocating movement in a direction orthogonal to the movement direction of a belt device.

In this case, a planting device 2 connected to a planting mission 1 is provided on a traveling machine A, and a vertical conveyor belt device 3 is provided above the planting device 2, which moves intermittently in one direction, and is perpendicular to the belt device 3. A horizontal conveying seedling box device 4 that reciprocates intermittently in the direction is adjacent to the transfer end portion of the belt device 3, and seedlings 6 are supplied to the planting device 2 from a seedling holding box 5 provided on the seedling box device 4. In the constructed seedling supply device B of the transplanter, the drive device 7 of the seedling box device 4 is interlocked and connected to the planting mission 1 via the reciprocating clutch device 8, and the clutch device 8
By providing a drive structure configured to perform the switching by the transfer operation of the seedling box device 4, the reciprocating switching clutch device is directly linked with the transfer operation of the seedling box device, and the reciprocating operation of the switching seedling box device can be performed. The purpose is to ensure that the seedling supply work is carried out smoothly and reliably.

To explain the embodiment shown in the drawings, A is a traveling machine as a transplant machine, and the engine is installed in the front part of the machine base 9.
0 is mounted on the tower, and a running wheel 12 which is interlocked and connected to the engine 10 via a transmission 11 is pivotally supported at the lower part of the machine base 9, and a guide wheel 13 is supported at the front part of the machine base 9, and a guide wheel 13 is supported at the rear part. An operation handle 14 is provided in series.

Reference numeral 2 denotes a planting device, which is composed of a link mechanism 15 provided in the front-rear direction of the machine body A and a seedling holder 16 supported at the tip of the link mechanism 15, and a pair of F-shaped links shifted in the front-rear direction. 17. Swinging arm 18 whose base end of 17 is pivotally supported on the machine stand 9
A crank arm 19 is pivotally supported at the tip of the link 17.17, and the seedling holder 16 is supported between the tips of the links 17.17.

The crank arm 19 is supported by a crankshaft 20 that is pivotally supported on the planting mission 1, and the crankshaft 20 is operatively connected to a planting main shaft 21 that is pivotally supported on the planting mission 1.

The planting main shaft 21 is operatively connected to the engine 10 via a drive transmission 22.

In addition, the seedling holder 16 rotatably supports a pair of half-cup bodies 23.23, which are obtained by dividing an inverted conical cylinder in half, at the tips of the links 17.17, and inside the half-cup bodies 23.23. The lower end opening of the seedling guide tube 24 is supported by a seedling guide tube 24 whose upper end opening is circular.

When transplanting the seedlings 6 using the planting device 2, the link mechanism 15 linked to the crankshaft 20 is rotated in conjunction with the traveling of the machine body A, and the seedling holder 16 is rotated as the link mechanism 15 rotates. The device is moved up and down along the trajectory shown by the imaginary line in FIG.

The seedlings 6 are supplied to the planting device 2 at the time when the seedling holder 16 rises to the upper end of the trajectory. The half-cup body 23.23 penetrates into the field by lowering the seedling holder 16 as the seedling holder 16 rotates, and then the half-cup body 23
．． 23, a planting hole is created, and the seedling 6 is dropped into the planting hole. Next, the seedling holder 16 is raised while closing the half-cup body 23. It is a continuous transplant.

The seedling feeding device B is constituted by a pair of longitudinal conveying belt devices 3.3' and a horizontal conveying seedling box device 4 adjacent to the end of the transition of the belt devices 3.3'.

The vertical conveyor belt devices 3.3' are arranged in parallel above the center of the machine body A at a distance t, and the respective belt devices 3.3' are arranged alternately from the front to the rear of the machine body A. Drive sprockets 27.2 are mounted on drive rollers 26.26', which are pivotally supported on the machine frame 25, respectively.
7' are provided facing each other, and an idler sprocket 28 is pivotally supported between the sprockets 27 and 27'.
A driving chain 725 connected to the drive chain 3 is connected to the conveying shaft 30 which is connected to the crankshaft 26.
By attaching intermittent chains 731.31' orthogonally at regular intervals on both sides of the belt, and linking the intermittent chains 31.31' to the drive sprockets 27,27', the vertical conveyor belt device 3.3 ' can be shifted intermittently at regular intervals.

In addition, the vertical conveyor belt device 3.3' has a row of seedlings 3 in the transfer direction.
2, a partition rod 33 is installed between the front and rear ends of the belt device 3.3', and the partition rods 33 are arranged in parallel in the horizontal direction at the same interval as the above-mentioned constant interval t. Seedling placement rows 32 divided by 33 are formed in parallel in the horizontal direction.

Further, each belt device 3.3' is provided with a protruding partition line 34 perpendicular to the transfer direction, and the partition line 34 divides the seedling placement row 32 in the vertical direction, and the seedlings 6 are placed within the partitioned frame. A large number of seedlings 6 are placed one by one on the belt device 3.3' in parallel in the vertical and horizontal directions.

The horizontal conveying seedling box device 4 is adjacent to the end of the transfer of the vertical conveying belt device 3.3', and moves back and forth intermittently in a direction perpendicular to the transfer direction of the belt device 3.3'.

The seedling box device 4 includes seedling holding boxes 5 arranged in parallel in the transfer direction, and a pair of bottom supports that constitute the bottom plate of the seedling holding box 5 and a floating belt 35, 35'. The inside of an outer box 36 with an open top and bottom is partitioned by a partition wall 37 at the same intervals as the above-mentioned constant interval t, and one more seedlings than the number of the above-mentioned seedling placement rows 32 are arranged in parallel.

The bottom support is the floating belt 35, and the 35' is the belt device 3.
．． It is pivoted below the end of the transition of each belt device 3.3' at a distance t' which is the same as the above-mentioned constant distance t in a direction perpendicular to the direction of transition of belt device 3.3'.

Both ends of the outer box 36 are supported by floating belts 35.35', and a seedling holding box 5 with the floating belts 35.35' as a bottom plate is movably installed between the floating belts 35.35'.

The drive device 7 of the seedling box device 4 includes a pin rack 38 attached to the side surface of the outer box 36 adjacent to the belt device 3.3';
It is composed of an intermittent rotating pinion 39 that meshes with the bin rack 38, and is operatively connected to the conveyance shaft 30 via a reciprocating clutch device 8.

The reciprocating clutch device 8 supports a pinion shaft 40 perpendicularly to the conveyance shaft 30, and supports a pair of notched bevel gears 41, 41' on the pinion shaft 40 in a freely movable manner, facing each other.
A partially toothed bevel gear 42 that meshes with the bevel gears 41 and 41' is provided on the conveyor shaft 30, fixed between the notched bevel gears 41 and 41' in the rotational direction, and fitted so as to be slidable in the axial direction. The mated clutch 43 is pivotally supported, and locking pawls 44 are provided on both sides of the clutch 43.
．． 44', and a locking body 45.45' that engages with the locking pawl 44.44' is formed on the opposite surface of the notched bevel gear 41.41'.

Then, by rotation of the conveyor shaft 36, the notched bevel gear 41.4
1' is a device that constantly performs intermittent rotation in the opposite direction via a partially toothed bevel gear 42. In this state, by switching the clutch 43, the intermittent rotation pinion 39 is rotated in the forward and reverse directions and meshes with the same pinion 39. Via the pin racks 38, the horizontal conveying seedling box device 4 can be moved back and forth intermittently in a direction perpendicular to the direction of movement of the vertical conveying belt device 3.3'.

The switching of the reciprocating switching clutch device 8 is linked to the shifting operation of the horizontally conveying seedling box device 4. Push bodies 46.46 are attached to both ends of the outer box 36, and the pushing bodies 46.4 are attached to both ends of the outer box 36.
The crank lever 47 that comes into contact with the clutch fork 4
8 via a link 49, and the horizontal conveyance seedling box device 4
At the end of the transition in each direction, the crank lever 47 is pressed and rotated by the pusher 46, and the clutch 43 can be switched by rotating the clutch fork 48 in conjunction with the rotation.

The locking method 50 is fitted into one end of the crank lever 47, in which a ball receiver 51 that engages with the locking ball 50 is recessed in the clutch case 52, and the locking method 50 is inserted into the spring 53. By pressing the crank lever 47, the rotational position of the crank lever 47 is maintained.

Numeral 54 denotes seedling fall resistance plates independently pivoted at the upper end opening of the seedling holding box 5, and are held so as to rotate downward against the spring as a bullet.

Therefore, when transferring the seedlings 6 from the vertical conveyance belt device 3.3' to the horizontal conveyance seedling box device 4, the same belt The device 3 is moved intermittently once to drop the seedlings 6 in the front row into the seedling holding box 5.

Also, due to this intermittent transition, the seedlings 6 in the second row are moved to the front row.

Further, in this case, the reciprocating clutch device 8 is in a switched state, and the seedling box device 4 is connected to the other belt device 3'.
It can be moved intermittently to the side.

Then, the seedling box device 4 is moved intermittently, and the seedlings 6 held by the floating belt 35 in the seedling holding box 5 are sequentially and intermittently conveyed by the floating belt 35 and dropped sequentially from the interval t'. It supplies the seedlings into the seedling holder 16 which moves up and down below.

Then, the seedlings 6 are transferred from the belt device 3' to the seedling box device 4 that has moved to the end of the transfer of the other belt device 3', and the reciprocating switching clutch device 8 is activated at the end of the transfer of the seedling box device 4. Switching In the same way as the transfer from the belt device 3 described above, the other belt device 3' delivers the seedlings 6 to the seedling box device 4, and then the seedling box device 4 is intermittently moved in the opposite direction to transfer the seedlings in the seedling holding box 5. The seedlings 6 can be continuously supplied to the planting device 2 by similarly supplying the seedlings 6 into the seedling holder 16 at intervals t' and repeating the same operation sequentially from the initial operation.

The intermittent reciprocating movement of the horizontal conveying seedling box device 4 is performed by the intermittent rotating pinion 39 rotating in the forward and reverse directions and the pin rack 38 meshing with each other. The pinion shaft 40 is meshed with the bevel gear 42 to freely rotate, and is maintained in an intermittent rotation state in mutually opposite directions.

By switching the clutch 43 in this state, the intermittent rotation of the notched bevel gears 41, 41' can be transmitted to the pinion 39 via the clutch 43, and the pinion 39 can be rotated intermittently in the forward and reverse directions.

The switching operation of the clutch 43 is linked to the transition operation of the seedling box device 4, and at the end of the transition of the seedling box device 4, the pushing body 46 and the crank lever 47 come into contact and rotate the crank lever 47. , the clutch 43 can be slid left and right via the clutch fork 48 that is linked to the rotation, and the clutch 43 can be switched by engaging the locking pawl 44, 44' and the locking body 45, 45'. can.

Since the present invention is configured as described above, the reciprocating clutch device can be directly linked to the transition operation of the seedling box device, and the reciprocating movement of the seedling box device can be performed smoothly, and the seedling feeding operation can be performed reliably. There are benefits to be gained.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the transplanter showing the drive structure in the seedling supply device of the transplanter of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a view taken along the arrow I-I line in Fig. 1, and Fig. 4 The figure is an enlarged cutaway view showing the drive structure of the vertical conveyance belt device, FIGS. 5 and 6 are enlarged views of the main parts of the present invention, and FIG. 7 is a cutaway view taken along the line n=n in FIG. 6. 1: Planting mission, 2: Planting device, 3: Vertical conveyance belt device, 4: Horizontal conveyance seedling box device, 5: Seedling holding box, 6: Seedling, 7
: Drive device, 8: Reciprocating clutch device, A: Traveling machine, B: Seedling feeding device.

Claims (1)

[Scope of utility model registration request] A planting device 2 interlocked with the planting mission 1 is provided on the traveling machine A, and a vertical conveyor belt device 3 that moves intermittently in one direction is provided above the planting device 2. A horizontally conveying seedling box device 4 that reciprocates intermittently is adjacent to the transfer end portion of the belt device 3, and is configured to supply seedlings 6 to the planting device 2 from a seedling holding box 5 provided in the seedling box device 4. In the seedling feeding device B of the transplanter, a pair of floating belts 35 and 35' which form the bottom of the seedling holding box 5 are arranged on the left and right with a distance t' maintained for dropping the seedlings, and each floating belt 35
, 35' are opened at the top and bottom and the inside is partitioned for each seedling. Both ends of the seedling holding box 5 are fixed respectively, and an intermittent rotating pinion 39 is engaged with a pin rack 38 provided on the side wall of the seedling holding box 5. 39 is interlocked and connected to the conveyance shaft 30 which is interlocked to the planting mission 1 via a reciprocating switching clutch device 8 so as to freely rotate in forward and reverse directions, and the switching operation of the clutch device 8 is controlled by a pusher body connected to the seedling holding box 5. 46. A drive structure in a seedling feeding device of a transplanter configured to perform the transition operation of 46.