JPH0140424Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention allows fertilizer application work to be carried out while performing the original agricultural work, and also allows for good fertilizer management, such as being able to hold a large amount of fertilizer without impairing the front-to-back balance of the vehicle body. Regarding the agricultural vehicle that can hold the fertilizer, in detail, auxiliary tanks for dispensing fertilizer are provided near each of the plurality of fertilization points on the vehicle body, and the granular fertilizer stored in one main tank is transported to each of the auxiliary tanks. It relates to a device equipped with a device for

In such agricultural vehicles, when configuring the fertilizer conveyance device, for example, when the main tank is placed above the auxiliary tanks, pipes are provided to connect the main tank and each of the auxiliary tanks separately. A rotating body is installed to feed the fertilizer in the tank to each pipe, so that the fertilizer from the main tank is moved by its own weight within each pipe.In this case, if each pipe is bent, Since it is no longer possible to allow the fertilizer to fall smoothly under its own weight, there are significant restrictions on the installation position of each pipeline, which is an inconvenience in that the installation positions of the auxiliary tank and the main tank cannot be freely selected. It was hot.

For this reason, the inventor of the present invention considered a means for inserting a spiral rotating body for transporting fertilizer made of spring wire into each of the above-mentioned pipes, but in this case, each of the rotating body and the pipe It is difficult to use the pipe properly over a long period of time due to wear due to relative rocking, and in order to rotate the spiral rotating body smoothly, the pipe must be bent with a small radius of curvature or at multiple points. Therefore, even in this case, there was a problem in that it was difficult to freely select the installation positions of both tanks.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to improve the fertilizer conveying device so that the installation positions of both tanks can be freely selected, and to improve durability. The object of the present invention is to simplify the structure for this purpose.

In the above-mentioned agricultural vehicle, the present invention provides that the fertilizer conveyance device includes a main pipe connected to the main tank, a plurality of auxiliary pipes branched out from the main pipe and connected to each of the auxiliary tanks separately, and the It is characterized by being equipped with an air supply device connected to the main pipe to supply air for pumping fertilizer.

Next, the effects of the feature configuration of the present invention will be described.

In other words, by pneumatically transporting fertilizer,
Even if the conveying pipe bends quite sharply or in many places, the fertilizer can be conveyed reliably as desired, so each of the main and auxiliary tanks can be adjusted to improve workability, such as vehicle body balance and fertilizer replenishment. It has become possible to freely install the agricultural vehicle in an appropriate position, taking into account such factors, and it has become possible to rationally design the entire agricultural vehicle.

Moreover, since there are no mechanically moving parts for transporting fertilizer in the pipeline, the transport device can be
It has excellent durability with extremely little wear and tear.

In addition, especially according to the present invention, a plurality of auxiliary pipes are branched out from the main pipe through which air for pumping fertilizer is supplied to supply fertilizer, so that, for example, the main tank and the auxiliary tank Compared to providing a plurality of pipes that connect the In addition, only one main pipe line needs to be connected to the main tank, and the shape of the main tank can be prevented from becoming complicated due to the pipe connection. It was possible to achieve a simple structure that is advantageous in terms of design and manufacturing.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a pair of left and right front wheels 1, 1,
At the rear of a passenger vehicle body equipped with a pair of left and right rear wheels 2, 2, a driver's seat 3, etc., there is a slanted seedling stand 4 that moves back and forth laterally with a constant stroke, and a pine-shaped seedling W placed on it is placed at the rear of the vehicle body. A seedling planting device 7 equipped with a plurality of planting claws 5 for taking out and planting seedlings one by one, and a plurality of floats 6 for leveling the muddy surface is connected via upper and lower swing links 8a and 8b. Connected so that it can be raised and lowered,
Furthermore, a hydraulic cylinder 9 for raising and lowering the seedling planting device is provided to constitute a riding type rice transplanter.

A plurality of furrowers 10 which also serve as fertilizer release tools and which form grooves U for fertilization on the lateral sides of each of the seedling planting locations by the plurality of planting nails 5 are connected and supported to the seedling planting device 7. , a leveling plate 11 that fills the groove U after fertilizer is supplied
is attached to the actuator 10, and a plurality of auxiliary tanks 14 each equipped with a rotary body 13 for feeding out fertilizer having grooves 13a for entering fertilizer grains formed on the periphery are connected and supported to the seedling planting device 7. , a flexible pipe 12 is provided to guide and supply the granular fertilizer discharged from each of the auxiliary tanks 14 to the plurality of furrowers 10, so that the fertilization work can be carried out at the same time as the seedling planting work as the aircraft advances. It is configured so that it can be done.

A main tank 16 for storing powdery fertilizer to be supplied to the auxiliary tank 14 is attached to the rear of the vehicle body, a main pipe 17 for transporting fertilizer is extended from the main tank 16, and a joint 18 A plurality of flexible auxiliary pipes 17a branched out through the auxiliary tank 14 are each separately connected to the auxiliary tank 14, and an electric blower 19 for supplying air for pumping fertilizer is connected to the upper side of the main pipe 17. and a small hole 2 for discharging air for pressure feeding fertilizer into the auxiliary tank 14.
0, thereby forming a fertilizer conveying device for pneumatically conveying the fertilizer in the main tank 16 into the auxiliary tank 14.

A damper 21 for opening and closing the discharge port 16a of the main tank 16 is biased toward the closing side by a helical spring 22, and a surface 23a is formed to receive air from the blower 19 for opening operation. That is, the damper 21 is automatically opened and closed only when the blower 19 is operated to transport fertilizer.

The present invention can be applied to various agricultural vehicles such as rice transplanters, tillers, and planting machines for various crops.

Further, in carrying out the present invention, the air supply device 19 such as a blower may be manually started and stopped, and the amount of fertilizer in the auxiliary tank 14 may be maintained within a set range. It may be automatically activated based on information from a sensor that detects the amount of fertilizer in the auxiliary tank 14.

Further, it is preferable to provide a pressure regulating valve in each of the auxiliary pipes 17a to make the distribution amount the same. For example, when the auxiliary conduit 17a is formed of a flexible pipe as in the embodiment, as shown in FIG.
It is preferable to provide a folding holding member 23.

[Brief explanation of the drawing]

FIG. 1 is a side view of a riding rice transplanter, FIG. 2 is a schematic side view of a fertilizing device, FIG. 3 is a schematic plan view of the device, and FIG. 4 is a sectional view of an applied example. 14... Auxiliary tank, 16... Main tank, 17
...Main pipe line, 17a...Auxiliary pipe line, 19...Air supply device.

Claims (1)

[Scope of Claim for Utility Model Registration] Separate auxiliary tanks 14 for feeding fertilizer are provided near each of the plurality of fertilization points on the vehicle body, and
The agricultural vehicle is equipped with a device for conveying powdery fertilizer stored in one main tank 16 to each of the auxiliary tanks 14, and the fertilizer conveying device connects a main pipe line 17 connected to the main tank 16, and a branch line 17 connected to the main tank 16, and a branch line 17 connected to the main tank 16. It is characterized by comprising a plurality of auxiliary pipes 17a which are discharged and connected to each of the auxiliary tanks 14 separately, and an air supply device 19 which is connected to the main pipe 17 to supply air for pressure feeding fertilizer. agricultural vehicle. The agricultural vehicle according to claim 1, wherein the auxiliary tank 14 is formed with a small hole 20 for discharging the air for pressurizing the fertilizer.