JP2870892B2 - Seedling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a seedling planter for planting and fertilizing seedlings in a cultivated portion while partially cultivating soil corresponding to a planting position. It is about.

[Prior Art] Conventionally, Japanese Unexamined Patent Publication No. 62-3704 discloses a tilling device for partially tilling soil corresponding to a planting position, and a seedling for planting a seedling in a place tilled by the tilling device. There are seedling transplanters provided with a planting device and a fertilizing device for fertilizing a portion plowed by the tillage device. In this case, the tilling depth of the tilling device was set to be deeper than the depth of seedling by the seedling planting device and deeper than the depth of fertilizing by the fertilizing device.

[Problems to be solved by the invention]

Although the above-mentioned conventional seedling transplanter is capable of saving labor in rice planting work, the tilling depth of the tilling device is set to be deeper than the seedling depth, and further, is set to be deeper than the fertilization depth. There is a problem that the tillage is required to drive the tillage device to a deep portion of the soil where neither the fertilizer nor the fertilizer can penetrate, and that it is difficult to work at high speed.

Therefore, the present invention relates to a seedling planter for planting and fertilizing a seedling in a cultivated place while partially cultivating the soil corresponding to the planting position. It is an object to increase the working speed.

[Means for solving the problem]

In order to solve the above problems, the present invention provides a tilling device 25 for partially tilling soil corresponding to a planting position, and a seedling planting device for planting a seedling in a place tilled by the tilling device 25
20, and in a seedling plant provided with a fertilizer device 21 for fertilizing a place plowed by the tillage device 25, the tillage depth by the tillage device 25 is deeper than the seedling depth by the seedling planting device 20, and The seedling planting machine is characterized in that the fertilization depth is set to be substantially the same as the fertilization depth by the fertilizing device 21.

[Action]

This seedling planter partially plows the soil corresponding to the planting position by the tilling device 25, the seedling planting device 20 plants the seedlings at the place tilled by the tilling device 25, and The fertilizer 21 also applies fertilizer to the places where the tilling device 25 has cultivated the bone. At this time, the tillage device 25 is deeper than the seedling depth by the seedling planting device 20, and
The fertilizer is tilled to the same depth as the fertilizer application device 21.

〔The invention's effect〕

According to the present invention, while partially tilling the soil corresponding to the planting position, the seedlings are planted and fertilized at the cultivated portions, so that labor for rice planting can be saved. Moreover, the tillage device 25
Tilling depth by the seedling planting device 20 is deeper than the seedling planting depth, and, since it was set to approximately the same depth as the fertilization depth by the fertilizer device 21, seedling planting and fertilization is performed in the tilling soil, that is,
Seedling plant 20 and fertilizer 21 on hard soil under cultivated soil
The seedling planting device 20 and the fertilizer application device 21 are pushed up to invade, and the seedling planting and fertilizing depth can be reduced to an appropriate depth without being reduced. Besides,
The tilling device 25 tills the seedling planting device 20 and the fertilizer application device 21 to the minimum necessary depth, and therefore, the driving torque of the tilling device 25 is reduced as much as possible, and the working speed is reduced. Can be speeded up.

〔Example〕

1 to 8, a vehicle body 1 has a steerable steering wheel 2, a front wheel 3, and a rear wheel 4, and a cockpit 5
The front wheel 3 and the rear wheel 4 are transmitted by an engine 6 mounted on the lower side of the vehicle to form a four-wheel drive tractor. At the rear end of the vehicle body 1, wheel transmission cases 7 protrude rearward on both left and right sides, and the rear wheels 4 are mounted on the rear ends of the wheel transmission cases 7 by axles 8.

The seedling plant 9 has an upper link to the rear end of the vehicle body 1.
10 and lower link 11 to move freely and connect,
The lift is controlled by expansion and contraction of the lift cylinder 12 communicating with the hydraulic circuit. Reference numeral 13 denotes a transmission shaft which is connected to an input shaft 14 of the seedling plant 9 from a power take-out shaft at the rear of the vehicle body to transmit the power.

Regarding the configuration of the seedling plant 9, a seedling plant body that is rotatably connected by a rolling shaft 16 to a rear link 15 that connects the upper link 10 and the rear end of the lower link 11.
Under the seedling plant 17, a float 18 supporting the weight of the seedling plant while sliding on the soil surface is provided.
Are arranged at appropriate intervals, and on the upper side, a seedling tank 19 for accommodating soiled seedlings and feeding the seedlings to the rear lower end while reciprocating in the left and right direction is provided, and the rear portion is opposed to each seedling tank 19. Planting apparatus 20 for separating and planting seedlings fed out in a predetermined number of plants
And a fertilizer 21 for accommodating and feeding fertilizer is arranged above the rear part, and a tilling claw 22 for tilling the soil surface is mounted on a tilling transmission case 24 with a tilling shaft 23 on the front side. Tillage equipment
25 are arranged. The groove generator 26 is integrally mounted on the float 18 in front of the seedling planting position.

The seedling-planting machine body 17 is equipped with a transmission device for transmitting each part of the seedling tank 19, the seedling-planting device 20, the fertilizer device 21, the tilling claw 22 and the like from the input shaft 14, and the tilling transmission case 24 includes left and right sides. The tilling claw 22 peepingly rotates between the left and right rear wheels 4 and the rear part of the outside part, and is provided so as to protrude toward a center part between the front left and right rear wheels 4 and a position substantially facing the outside part. You have set up a relationship. The tilling claws 22 are arranged around a tilling shaft 23 projecting to the left and right sides from the rear end of each tilling transmission case 24 so as to span a predetermined tilling width, and are configured to partially tilling.

The float 18 is provided so that a front end portion thereof is vertically rotated by a float shaft 27 with respect to a rear portion of the seedling plant 17 and leveles while sliding on the soil surface. Of these, the float 18 at the center is opposed so as to level the tillage marks formed by the tillage claw 22 at the center located between the rear wheels 4, and the floats 18 at the left and right outer portions are arranged so that the float 18 at the left and right sides is opposed to the tillage claw 22 on the outside. Wheel marks and till marks, etc., are leveled. A cut-out seedling planting portion is formed at the rear of each float 18, and the seedling planting device 20 is operated at the seedling planting portion to carry out seedling planting. On the front side of the part, a groove forming device 26 integral with the float 18 is formed to an appropriate depth, and is protruded downward from the bottom surface of the float 18 to form a fertilization groove by sliding the float 18. The groove generator 26 is opposed to the partial till width of each till claw 22.

In addition, the vertical movement of the float 18 controls the expansion and contraction of the hydraulic elevating cylinder 12, so that the soil depth, the tillage inclination, etc.
The raising and lowering of the seedling plant 9 is controlled, and the uniformity by each float 18 is controlled.
The pitching control is performed so as to keep the seedling depth and the like constant. Also, the seedling plant 9 is mounted on a rolling shaft.
A configuration is adopted in which rolling control is performed so that each float 18 is slid on the soil surface by rotating it around 16 (equivalent to the drawing).

The fertilizer application device 21 includes a fertilizer tank 28 that stores fertilizer, a feeding device 29 that feeds the fertilizer in the fertilizer tank 28,
It comprises a fertilizer application pipe 30 for guiding the fertilizer fed from 29 down to the groove formed by the groove generator 26, and the like.
It is configured to transmit power via the internal transmission device.

When performing the seedling planting operation by running the vehicle body 1, the lifting cylinder 12 is shortened, the float 18 is grounded, and the planting posture is set. With the rotation of each tilling shaft 28, partial tilling is performed with the tilling claws 22, and the cultivated soil surface is slid and leveled with the float 18 while grooving to a certain depth with the grooving device 26. Let it do. Seedlings are planted by the planting apparatus 20 on the side of the soil surface fertilized in this way.

When the vehicle body 1 to the seedling plant 9 or the like changes up or down or tilts to the left or right due to a change in the depth tillage of the soil surface or the like, the float 18 detects this and performs pitching control, rolling control, and the like. The deeper the soil, the float in the center
When the cylinder 18 is turned upward, the lifting cylinder 12
The pitching control valve of the hydraulic circuit is switched, the elevating cylinder 12 is extended, the upper and lower links 10, 11 are raised and rotated, and the seedling plant 9 is raised, and conversely, the soil surface is When it is hard and shallow, the float 18 at the center is rotated downward, and the seedling plant 9 is lowered, so that the float 18
Is maintained and controlled so that the ground pressure becomes constant.

In the rolling control, the left and right floats 18 are controlled so as to have a constant ground pressure.
When the pressure difference is increased by moving up and down more than a certain amount, the rolling cylinder is expanded and contracted by a rolling control valve or the like, and the seedling transplanting device 9 is rotated around the rolling shaft 16 so as to be parallel to the soil surface in the left-right direction. Rolling control is performed so that

When the seedling planting device 9 is pitched or rolled in this manner, the respective tilling devices 25 are pitched or rolled integrally with the seedling plant body 17 and are controlled so as to be parallel to the soil surface, The tilling depth can be maintained constant, and the relationship between the grooving device 26 for grooving within the partial tilling width cultivated by the tilling device 25 and the seedling planting device 20 is also maintained at a constant position. Thus, accurate fertilization and seedling planting operations can be performed.

The state where the seedlings are planted and fertilized within the partial tillage width is as shown in FIG. Further, as shown in this drawing, the tilling depth by the tilling device 25 is deeper than the seedling depth by the seedling planting device 20 and the fertilizing device 21
, Ie, the same depth as the lowermost position of the groove generator 26 provided to guide the fertilizer into the soil.

4 to 6, points different from the previous example will be described. The tilling device 25 is configured such that the tilling device 25 is detachably attached to the seedling plant body 17, and the tilling machine body 31 in which each tilling transmission case 24 is disposed.
Is superimposed on the power take-off shaft 32 at the center of the seedling plant 17
The power take-off shaft 32 and the input shaft 33 on the side of the cultivator 31 are engaged with each other to form an interlocking structure, and the two bodies 17 and 31 are fastened with bolts 34.

7 to 9, the difference from the above embodiments is that fertilizer is flowed down and guided by the fertilizer pipe 35 of the fertilizer 21 to the front position where the fertilizer is tilled by the tilling device 25, and fertilizer is applied on the soil surface. Fertilizer, and immediately after tilling with the tilling claw 22, the fertilizer is mixed with the soil surface to form a full-layer fertilizer.

In this case, the fertilizer application pipes 30 and 35 are mounted so that the fertilizer application apparatus 21 is mounted on the rear part of the vehicle body 1 and the fertilizer fed from the feeder apparatus 29 is blown by a blower 36 provided in the engine 6 room.
Has a branch configuration.

The fertilizer application pipe 30 is configured to be flexible so that the fertilizer can be injected when the seedling plant 9 is pitched or rolled, and does not cause resistance in these controls. I have.

At the time of seedling planting, the fertilizer sprayed from the fertilizer pipe 35 is fertilized by the tillage device 25 of each row and is in a state of full-layer fertilization, and is further deepened at a predetermined depth position while being grooved by the groove generator 26 on the rear side. Fertilized. For this reason, the seedlings after planting have good growth by first full-layer fertilization, and subsequently maintain good growth by deep-layer fertilization, and can simplify the operation by performing full-layer fertilization and deep-layer fertilization simultaneously.

Further, a tilling clutch of the tilling device 25 is further provided in the seedling plant body 17 or the cultivating body 31, and the cultivating clutch is interlocked with the wire 37 so as to be interlocked with the elevation of the upper and lower links 10, 11, and the seedling planting device. When lowering 9, the tilling clutch is engaged. At the base of the upper link 10 is provided a connecting piece 38 for connecting the distal end of the inner wire to the vehicle body 1.
The distal end of the outer wire is received by the wire seat 39 integral with the wire seat 39, and the wire 37 is operated by the forward and backward movement of the connecting piece 38 with respect to the wire seat 39.

In addition, regarding the on / off operation of the tilling clutch, a configuration in which the float 18 is grounded by raising and lowering the seedling plant 9 to turn on the tilling clutch, a configuration in which the tilling claw 22 is grounded to turn on the tilling clutch, There is a configuration in which the tillage clutch is turned on by operating the lowering position of the operation lever for operating the planting device 9 up and down. In any case, if the operation interlocking timing is set so that the tilling clutch is turned on at the operation position before turning on the power transmission of the seedling planting device 9, it is not possible to set the time when planting seedlings or grooving. Tillable tilling can be performed without generating tilling soil.

10 and 11, the difference from the above embodiments is that the rakes 40, 4
1, the outer rake 41 is mounted on the outer tilling transmission case 24 so as to be vertically rotatable. The rakes are switched and interlocked so that the rakes of the rakes take a substitute posture. This operation is linked by the telescopic cylinder 42 and the wire 43 of the hydraulic circuit. Rake 40 is a tiller
It is provided on the seedling plant 31 or on the seedling plant 17, and is provided so that the uneven portion between the floats 18 is scraped and leveled. The lifting cylinder 12 may be used in place of the telescopic cylinder 42.

12 and 13, the difference from the above-described embodiments is that a rake 41 that can freely enter and exit the seedling plant 17 is provided with a marker 44 that draws a mark on the soil surface. .

FIG. 14 and FIG. 15 show another configuration, of which FIG.
In the drawing, the difference from the above embodiments is that
It is provided so as to form a groove in the untiled soil outside the tillage mark by the tillage device 25, and is attached to the center of the rear end of the float 18. Further, the groove generator 26 may be provided at the center of the front end of the float 18.

Further, in FIG. 15, a different point from the above-mentioned embodiments is that the groove generator 26 is not provided. Therefore, the fertilized pipe 35 is used to plow the fertilized soil surface with the tillage device 25 to apply fertilizer to all layers, and thereafter, after the tillage is leveled by the float 18 to plant seedlings.

Therefore, the seedling planter includes a tillage device 25 that partially plows the soil corresponding to the planting position, a seedling planting device 20 that seeds a seedling at a location plowed by the tillage device 25, Tillage equipment
By providing a fertilizer application device 21 that fertilizes the area plowed by 25, the seedlings are planted and fertilized while the soil is partially plowed corresponding to the planting position. Labor saving can be achieved.

In addition, the tillage depth of the tillage
And the fertilization depth is set to be substantially the same as the fertilization depth by the fertilizer 21, so that seedlings and fertilization are performed in the cultivated soil, that is, the seedling transplanter is mounted on the hard soil below the cultivated soil. Seedling plant 20
In addition, the seedling planting and fertilization can be performed at an appropriate depth without the seedling planting depth and the fertilizer application depth becoming shallow as the fertilizer application device 21 is pushed up. In addition, the tillage device 25 will till the seedling planting device 20 has penetrated and the fertilizer device 21 has penetrated to the minimum necessary depth, and therefore, the drive torque of the tillage device 25 has been reduced as much as possible, Work speed can be increased.

[Brief description of the drawings]

 Each drawing will be briefly described below. Fig. 1: Side view of the fuselage Fig. 2: Partial plan view of the fuselage Fig. 3: Rear view of the part indicated by the arrow III in Fig. 1 Fig. 4: Side view showing a partially different configuration Fig. 5 Fig. 4: Side view of the disassembled state of the part viewed from the arrow V in Fig. 4. Fig. 6: Perspective view of the disassembled state of the part viewed from the arrow V of Fig. 4. Fig. 7: Plan view showing a partly different structure. Fig. 7: Side view of a part of the thing shown in Fig. 7 Fig. 9: Plan view showing a part of the action of the thing shown in Fig. 8 Fig. 10: Plan view showing a partly different structure Fig. 11: Fig. 12: Side view showing a partly different configuration Fig. 13: Partial plan view of the one shown in Fig. 12 Fig. 14: Plan view showing the operation of another configuration Fig. 15: Plan view showing the operation of another configuration The main symbols are briefly described below. 20: Seedling plant 21: Fertilizer 25: Tillage

Claims (1)

(57) [Claims] 1. A tilling device 25 for partially tilling soil corresponding to a planting position, a seedling planting device 20 for planting seedlings in a place tilled by the tilling device 25, and the tilling device 25 In a seedling plant provided with a fertilizer device 21 for applying fertilizer to a place plowed by the above, the tillage depth by the tillage device 25 is determined by the seedling planting device.
A seedling transplanter characterized in that the seedling depth is set to be deeper than the seedling depth by the fertilizer 20 and substantially the same as the fertilization depth by the fertilizer 21.