JPH0140422Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an agricultural vehicle that is provided with an auxiliary tank for delivering fertilizer near the fertilization area of the vehicle body, and is also provided with a main tank and a fertilizer conveyance device for supplying powdered fertilizer to the auxiliary tank.

In the above agricultural vehicle, the device for conveying powdery fertilizer from the main tank 7 to the auxiliary tank 8 has conventionally been installed in the seventh tank.
As shown in the figure, both tanks 7 and 8 are connected to each other via a flexible pipe 25, and within this pipe 25, a helical rotating body for transporting fertilizer made of a spring wire is connected to a motor 31. It was constructed by inserting 32.
However, in order for the spiral rotating body 32 to rotate smoothly within the conduit 25, it is necessary to avoid bending the conduit 25 with a small radius of curvature or in many places. Tank 7 and
Due to restrictions on the positional relationship of the auxiliary tank 8, it becomes impossible to design the entire agricultural vehicle as desired.
There are drawbacks in terms of manufacturing, and since the conduit 25 and the spiral rotating body 32 rotate in contact with each other, it cannot withstand long-term use and has a drawback in terms of life.

In view of the above points, the present invention improves the fertilizer conveying device so that the positional relationship between the main tank and the auxiliary tank can be freely selected, and also makes the conveying device durable for long-term use. The purpose of this invention is to prevent clogging of pipes from occurring easily due to such improvements.

The characteristic configuration of the present invention is that, in the above-mentioned agricultural vehicle, the fertilizer conveying device is connected to a conduit connecting both the tanks and to an air supply connected to the upper side of the conduit for supplying air for pressurizing the fertilizer. The air supply device is provided with an air supply device, and an upstream pipe portion is formed in the pipe line so as to be located downstream of a connection point of the air supply device.

The effects of the characteristic configuration of the present invention are as follows. In other words, by pneumatically transporting fertilizer from the main tank to the auxiliary tank, fertilizer can be supplied as expected and reliably even if the transport pipe bends quite sharply or in many places. Now you can freely install it in the most appropriate position, taking into account balance and workability when replenishing fertilizer.
It has become possible to rationalize the overall design of agricultural vehicles.

Furthermore, since there is no mechanically movable part for conveying the fertilizer in the pipe, the conveying device can be made to have excellent durability with extremely little wear and tear.

On the other hand, if a pneumatic transport type is simply adopted, there is no function to prevent the natural flow of fertilizer due to vibrations of the aircraft, so the pipes may become clogged with fertilizer due to driving when the fertilizer supply is stopped, and pneumatic transport may be restarted. There is a risk that the fertilizer will not be able to start, but according to the present invention, the natural flow of fertilizer can be prevented by the action of the upstream pipe.
Such troubles can be effectively avoided, and the configuration thereof is extremely simple, which is advantageous in terms of manufacturing and cost.

Next, examples will be shown.

As shown in FIG. 1, a pair of left and right driving front wheels 1
and a traveling body A equipped with a pair of left and right driving rear wheels 2.
A planting device B for planting five rows is connected to the rear of the device via one top link 3 and a pair of left and right lower links 4 so as to be movable up and down. 103 soil leveling floats 11 and 5 planting claws 12 that are reciprocated and circulated between the seedling take-out port of each seedling platform 10 and the mud surface.
Equipped with a driving unit 6 and a spare seedling stand 9 on the front side of the traveling body A, a main tank 7 for storing fertilizer in the space around the driver's seat 14, and a seedling stand of the planting device B. An auxiliary tank 8 attached to a support column 5 and a fertilizer application device C equipped with a trencher 22 and the like below the tank are arranged to constitute a riding-type rice transplanter capable of applying fertilizers.

To elaborate further on the above-mentioned fertilization composition,
As shown in FIGS. 2 and 3, the fertilizer conveying device D is configured by opening the swingable lid 34 and supplying the granular fertilizer supplied to the main tank 7 to the auxiliary tank 8. A conduit 2 formed by a hose or pipe across the lower part of the tank 7 and the upper part of the auxiliary tank 8.
5 is provided at the starting end of the conduit, and an up conduit section 35 is formed by a U-shaped curved conduit when viewed from the side, and at the bottom thereof there is provided a supply line installed under the driver's seat 14. An air supply port 28 is provided to blow out the air supplied from the air supply pipe 27 from the air device 26, and the fertilizer flowing down naturally from the main tank 7 is transferred to the pipe by the air from the air supply port 28. 25, even if the pipe line 25 is sharply and complicatedly bent, it can be reliably conveyed to the auxiliary tank 8. Also, when the air supply from the air supply port 28 is stopped, the air can flow naturally from the main tank 7. The structure is such that the continuous natural flow of fertilizer can be prevented by clogging the upstream pipe section 35 with the fertilizer.

The auxiliary tank 8 is configured to separate fertilizer and air using a cyclone type separation function and to exhaust only air from the exhaust port 30, and a fertilizer delivery roll driven to rotate at a constant speed is installed at the bottom of the auxiliary tank 8. 20 and a row number selection shutter 21 linked to the planting device B, and five furrowers 22 arranged correspondingly to each planting location are connected to separate fertilizer supply pipes 23.
The grooves are connected to the auxiliary tank 8, and fertilizer is then supplied by gravity to the furrower 22 that requires fertilization according to the number of planted rows, thereby fertilizing the inside of the furrow.

As shown in FIGS. 4 and 5, the driver's seat 14 is mounted so as to be rotatable in the front and rear directions by a pivot part 16b, and rotatably in the left and right directions in a horizontal plane by a pivot part 16a. , supported in the usage position by elastic supports 15 provided at four locations,
Further, the lock pin 17 is fitted into the lock hole 18 to prevent rotation in the left and right direction, and
The locking pin 17 is fitted into the guide groove 19 so that it can be rotated in the left and right directions, so that the driver's seat 14 is maintained in a predetermined orientation during operation, and the driver's seat 14 can be used, for example, when replenishing seedlings. If it is necessary to change the orientation of driver seat 1,
The driver's seat 14 is simply rotated after the driver's seat 4 is tilted forward and the lock pin 17 is removed from the lock hole 18.

Next, another example will be shown. As shown in FIG. 6, the lower part of the main tank 7 is shaped like a bump,
A partition plate 33 may be provided inside to form the upward conduit section 35, and the specific structure for forming the upward conduit section 35 can be freely changed.

The present invention can be applied to various agricultural vehicles that require fertilization work, such as agricultural vehicles that apply fertilizer while cultivating, and can also be applied to agricultural vehicles that are configured to transport various powdered materials such as seeds. It can also be used for

[Brief explanation of the drawing]

1 to 6 show an embodiment of the agricultural vehicle according to the present invention, in which FIG. 1 is an overall side view, FIG. 2 is a perspective view of the main parts, and FIG. 4 is a partially cutaway sectional view of the main part of the driver's seat, FIG. 5 is a view taken along the - line in FIG. 4, and FIG. 6 is a sectional view of the main part showing another embodiment. FIG. 7 is a partially cutaway sectional view of a conventional fertilizer conveying device. D...Fertilizer conveyance device, 7...Main tank, 8...
Auxiliary tank, 25... pipe line, 26... air supply device,
35...Upstream pipe section.

Claims (1)

[Scope of utility model registration request] An agricultural vehicle is provided with an auxiliary tank 8 for feeding out fertilizer near the fertilization area of the vehicle body, and is also provided with a main tank 7 for supplying powdered fertilizer to the auxiliary tank, and a fertilizer transport device D, wherein the fertilizer transport device D comprises: A pipe line 25 connecting the two tanks, and an air supply device 26 connected to the upper side of the pipe line to supply air for pressurizing the fertilizer are provided, and the air supply device 26 is connected to the pipe line 25. The agricultural vehicle is characterized in that an upstream pipe section 35 is formed downstream of the point.