JPH0441793Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a technology that allows the amount of fertilizer to be changed steplessly in a side row fertilizer applicator of a rice transplanter equipped with a rotary planting device. It is.

(b) Prior Art Conventionally, in a rice transplanter with a reciprocating planting mechanism, when a side row fertilizer applicator was attached, the drive of the fertilizer applicator was transmitted from the drive shaft of the planting arm of the planting device. It is. That is, the roll drive shaft of the fertilizer applicator was rotated by the crank motion of an arm provided on the drive shaft via a link, an arm, and a one-way clutch. The amount of seed sown was adjusted by changing the position of the pivot of the link and arm, which changed the radius of rotation, and the amount of rotation of the one-way clutch, in other words, the amount of rotation of the feed roll. .

(c) Problems to be solved by the invention If the structure is such that the pivot position is changed as described above,
Only a certain length could be changed, and subtle adjustments were not possible. In addition, since reciprocating motion is changed to rotational motion, smooth rotational motion cannot be achieved, and problems arise when rotating at high speeds.

(d) Means for solving the problem In view of the above points, the present invention is constructed as follows.

In a rice transplanter equipped with a rotary planting device and a side row fertilizer applicator, an output pulley 30 is provided so that it can be integrated or attached to the rotary arm 14 that supports the planting claw 8, and the output pulley 30 is attached to the roll drive shaft 32. A split pulley 33 is fitted, and a V-belt 31 is hung between the two so that the amount of fertilizer applied can be adjusted steplessly.

(e) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

Figure 1 is an overall side view of a riding rice transplanter equipped with a side row fertilizer applicator. Figure 2 is a rear view of the planting device and fertilizer applicator. Third
The figure is also a side view. FIG. 4 is a rear view of the fertilizer applicator drive section.

To explain the overall configuration with reference to FIG. 1, a work implement mounting device A is provided rearwardly protruding from the rear of the traveling device T, and a planting device B is mounted so that it can be raised and lowered using a hydraulic cylinder. The planting device B consists of a float 13, a seedling stand 4, a planting claw 8, etc., and has a side-row fertilizer applicator C attached to the rear.

As shown in FIGS. 2 and 3, the planting device B and the side row fertilizer applicator C are installed by attaching the front end of the planting device case 5 to the work equipment mounting device B, and then attaching the planting device case 5
A seedling stand 4 is placed on top and is slid back and forth from side to side. The planting claw 8 is synchronized with the reciprocating sliding of the seedling platform 4.
Each plant is cut out and planted in the soil.
The planting device B is a rotary-type planting device,
Support cases 17, 17 are fixed to both ends of the beam 15 that protrudes laterally from the front end of the planting mission case 5, and the planting mission case 5 and the support case 1 are connected to each other.
The planting claws 8 are arranged rotatably between 7 and 17. That is, the drive shaft 12 is protruded from the rear side of the planting mission case 5, and the rotary arm 14
The center of the rotary arm 14 is pivotally supported on the rear sides of the support cases 17, 17 on both sides, and two upper and lower links 9, 9 are pivotally supported between the rotary arms 14, 14. The planting nails 8, 8 are supported. The rotation of the rotary arm 14 and the planting claw 8 draws a rotation trajectory D shown in FIG. 3 to perform the planting work.

Said planting mission case 5, support case 1
A float 13 is arranged at the lower part between 7 and 17 so that the planting depth can be adjusted with a lever 11, and frames 16, 19, 19 are erected at the rear ends of the planting mission case 5 and support cases 17, 17. Fertilizer C
is attached. The fertilizer applicator C consists of a hopper 20, a feeding device 21, and a guide hose 22. Fertilizer is put into the hopper 20, and the feeding device 2
Fertilizer is delivered in fixed amounts by the rotation of the delivery roll in 1, and the fertilizer is delivered to the furrower 2 by the guide hose 22.
It leads to 3. A groove cutter 23 is fixed to the rear side of the float 13 to dig a groove, and a guide plate 24 having a U-shape when viewed from above is attached to the rear surface of the groove cutter 23, and the guide hose 22 is fitted therein. 25 is a soil plate.

The present invention has a configuration for driving the feeding device 21 of the fertilizer applicator C, and as shown in FIG. 1
4 or the output pulley 30 is fixed to the drive shaft 12. A split pulley 33 is fitted onto the roll drive shaft 32, and a V-belt 31 is stretched between the output pulley 30 and the split pulley 33.
34 is a tension pulley. Note that the output pulley 30 may be integrally formed with the claw case 14,
It may be configured so that it can be attached. Split pulley 33
a fixed part 33a fixed to the roll drive shaft 32;
It consists of a sliding part 33b that is slidably fitted onto the roll drive shaft 32, and a hawk fitting part 33c is fixed to the sliding part 33b, and is biased by a spring 35 in the direction of narrowing the gap. Then, the hawk 36 is fitted into the hawk fitting portion 33c, and the hawk 36 is fitted into the hawk fitting portion 33c.
The other end is pivotally supported by a wire 37 connected to a fertilizer amount adjustment lever provided on the driver's seat.

(f) Function of the invention With this configuration, the power from the planting mission case 5 is transmitted from the output pulley 30 on the drive 12 to the split pulley 33 fixed to the roll drive shaft 32 via the V belt 31. , and the feeding device 21 is activated. The rotation speed of the roll drive shaft 32, that is, the amount of fertilizer applied can be adjusted by pushing and pulling the wire 37 connected to the fertilizer amount adjustment lever, and the hawk 36 rotates, and the split pulley 33
The interval is changed steplessly to obtain the desired rotation speed, that is, the amount of fertilizer applied. Then,
If the interval between the split pulleys 33 is widened, the V-belt 31 will move toward the center of the pulleys, the rotation speed will increase, and the amount of fertilizer applied will increase. On the other hand, if you narrow it down, V-belt 31
moves to the outside of the pulley, the rotational speed decreases, and the amount of fertilizer applied decreases.

(G) Effects of the invention Due to the above-described structure and operation, the present invention has the following effects.

First, the amount of fertilizer applied can now be adjusted steplessly using the split pulley without changing the position of the pivot points of the arm and link, making it possible to make a wide range of subtle adjustments.

Secondly, since power is not obtained from crank motion but from rotary motion, fertilization work can be done smoothly without intermittent motion, and it can withstand high-speed rotation. It has also become compatible with rotary planting equipment.

[Brief explanation of the drawing]

Figure 1 is a side view of a riding rice transplanter equipped with a side-row fertilizer applicator. Figure 2 is a rear view of the planting device and the fertilizer applicator.
FIG. 4 is a rear view of the fertilizer applicator drive unit. C... Fertilizer applicator, 8... Planting claws, 14... Rotary arm, 30... Output pulley, 31... V
Belt, 32...roll drive shaft, 33...split pulley.

Claims (1)

[Scope of utility model registration request] In a rice transplanter equipped with a rotary planting device and a side row fertilizer applicator, an output pulley 30 is provided so that it can be integrated or attached to the rotary arm 14 that supports the planting claw 8, and the output pulley 30 is attached to the roll drive shaft 32. A drive device for a side-row fertilizer applicator, characterized in that a split pulley 33 is fitted and a V-belt 31 is applied to both of them so that the amount of fertilizer applied can be adjusted steplessly.