Agricultural machinery

Abstract

To provide an agricultural work machine capable of protecting a fertilization driving motor against submergence or damage.SOLUTION: An agricultural work machine 100 includes a traveling machine body 3, a fertilizer tank 41, a fertilization pump 42, and a fertilization driving motor 45. The traveling machine body 3 is supported by front wheels 1 and rear wheels 2 so as to travel in a fixed traveling direction D. The fertilizer tank 41 stores a paste fertilizer or a liquid fertilizer. The fertilization pump 42 discharges the paste fertilizer or the liquid fertilizer in the fertilizer tank 41. The fertilization driving motor 45 drives the fertilization pump 42. The fertilization driving motor 45 is arranged below an engine hood 9 arranged on the front side of the traveling machine body 3. Or, the fertilization driving motor 45 is arranged more on a front side than an axle 1A of the front wheel 1 in a traveling direction.SELECTED DRAWING: Figure 4

Description

Technical Field

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[0001] The present invention relates to an agricultural working machine.

Background Art

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the agricultural working machine described in Patent Document 1, if the installation position of the fertilizer drive motor is incorrect, there is a risk that the fertilizer drive motor may be submerged during agricultural work or damaged by contact with an object outside the vehicle.

[0005] An object of the present invention is to provide an agricultural working machine capable of protecting a fertilizer drive motor from being submerged or damaged. [[ID=J0]]

Means for Solving the Problems

[0006] The agricultural machine of the present invention comprises a traveling body, a fertilizer tank, a fertilizer pump, and a fertilizer drive motor. The traveling body is supported by front and rear wheels so as to travel in a constant direction. The fertilizer tank stores paste fertilizer or liquid fertilizer. The fertilizer pump dispenses the paste fertilizer or liquid fertilizer from the fertilizer tank. The fertilizer drive motor drives the fertilizer pump. The fertilizer drive motor is located under a bonnet positioned on the front side of the traveling body. Alternatively, the fertilizer drive motor is located in front of the front wheel axle in the direction of travel. [Effects of the Invention]

[0007] According to the present invention, an agricultural implement is provided that can protect the fertilizer drive motor from submersion or damage. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view of an agricultural machine according to an embodiment. [Figure 2] This is a front view of an agricultural machine. [Figure 3] This is a perspective view of an agricultural machine. [Figure 4] Another perspective view of agricultural machinery. [Figure 5] This is a magnified perspective view of a part of an agricultural machine. [Figure 6] This is a block diagram of the control circuit for an agricultural machine. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts will be denoted by the same reference numerals and will not be repeated in the description.

[0010] An embodiment of the agricultural implement 100 will be described with reference to Figures 1 to 5. Figure 1 is a side view of the agricultural implement 100. Figure 2 is a front view of the agricultural implement 100. Figures 3 and 4 are perspective views of the agricultural implement 100 from various directions. Figure 5 is a partially enlarged perspective view of the agricultural implement 100. The agricultural implement 100 is, for example, a riding rice transplanter with a fertilizer application function.

[0011] As shown in Figures 1 to 5, the agricultural implement 100 comprises a traveling body 3 and a planting implement 6. The traveling body 3 is supported by front wheels 1 and rear wheels 2 so as to travel in a constant direction D. The position of the axle 1A of the front wheel 1 is lower than the position of the axle 2A of the rear wheel 2. The planting implement 6 is connected to the rear of the traveling body 3 so as to be able to move up and down.

[0012] The vehicle body 3 has a bonnet 9 located at the front and a control unit 12 located behind the bonnet 9 where various control devices are arranged. The control unit 12 is equipped with a seat 13 in which the operator sits.

[0013] The agricultural implement 100 further comprises a fertilizer tank 41, a fertilizer pump 42, a fertilizer nozzle 43, a fertilizer drive motor 45, and a protective member 91. The fertilizer tank 41, fertilizer pump 42, fertilizer drive motor 45, and protective member 91 are positioned in front of the axle 1A of the front wheel 1 in the direction of travel D. The fertilizer nozzle 43 is positioned behind the axle 2A of the rear wheel 2 in the direction of travel D.

[0014] The fertilizer tanks 41 are located on the left and right sides of the bonnet 9 and store paste fertilizer or liquid fertilizer. The fertilizer tanks 41 are located at both ends of the width direction W of the traveling machine 3, which intersects with the direction of travel D.

[0015] The fertilizer pumps 42 are positioned below the left and right fertilizer tanks 41, respectively, and dispense paste fertilizer or liquid fertilizer from the fertilizer tanks 41.

[0016] A plurality of fertilizer nozzles 43 are provided below the rear part of the planting work machine 6, and guide the paste fertilizer or liquid fertilizer fed out by the fertilizer pump 42 to be discharged onto the field. A switching valve (not shown) is interposed in the fertilizer pipe between the fertilizer pump 42 and the fertilizer nozzle 43. The agricultural work machine 100 may further have a fertilizer return pipe from the switching valve to the fertilizer tank 41.

[0017] The fertilizer drive motor 45 is a single electric motor or hydraulic motor that drives the left and right fertilizer pumps 42. The fertilizer drive motor 45 is disposed above the axle 1A of the front wheel 1 at a position below the fertilizer tank 41 and in the middle of the left and right fertilizer tanks 41.

[0018] The protection member 91 is disposed in front of the fertilizer drive motor 45 in the traveling direction D so as to protect the fertilizer drive motor 45. Preferably, as shown in FIG. 5, the protection member 91 is bent into an L-shaped cross section and protects at least the front and lower portions of the fertilizer drive motor 45. The protection member 91 has a ventilation hole 91A that allows air to pass through the fertilizer drive motor 45. The ventilation hole 91A has an air-cooling effect on the fertilizer drive motor 45. The protection member 91 may also have a function of preventing contact with the rotary shaft 45A from the fertilizer drive motor 45 to the fertilizer pump 42.

[0019] Next, referring to FIGS. 1 to 6, the control circuit of the agricultural work machine 100 will be described. FIG. FIG. 6 is a block diagram of the control circuit of the agricultural work machine 100.

[0020] As shown in FIG. 6, the agricultural work machine 100 further includes a positioning unit 58, an input unit 59, a control unit 50, and a storage unit 51.

[0021] The input unit 59 inputs fertilizer information including a map showing the distribution of the fertilizer application amount in the field. The positioning unit 58 acquires the position information of the traveling machine body 3.

[0022] The storage unit 51 includes a storage device and stores data and computer programs. The storage unit 51 includes a main storage device such as a semiconductor memory.

[0023] The control unit 50 includes a processor such as a CPU (Central Processing Unit) and controls the fertilizer drive motor 45 by executing a computer program stored in the control unit 50 or the storage unit 51. Specifically, the control unit 50 controls the fertilizer drive motor 45 to change the amount of fertilizer dispensed by the fertilizer pump 42 while the mobile unit 3 is in motion, according to fertilizer information and position information. The control unit 50 is configured to control the driving force of the fertilizer drive motor 45 so that the amount of paste fertilizer dispensed by the fertilizer pump 42 can be adjusted steplessly.

[0024] According to the above embodiment, since the fertilizer drive motor 45 is positioned above the axle 1A of the front wheel 1, the fertilizer drive motor 45 can be protected from submersion. This is because the size of the front wheel 1 is usually set to have a radius that is larger than the height of the field surface relative to the plow pan (i.e., the water depth) so that the agricultural implement 100 does not become immobile. Furthermore, since the fertilizer drive motor 45 is positioned above the axle 1A of the front wheel 1, the fertilizer drive motor 45 can be protected from damage caused by contact with objects outside the vehicle.

[0025] Embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the embodiments described above, and can be implemented in various forms without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining the multiple components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. The drawings are schematic representations mainly of each component for ease of understanding, and the number of each component shown may differ from the actual number due to the convenience of drawing creation. Also, each component shown in the above embodiments is just an example and is not particularly limiting, and various modifications are possible without substantially departing from the effects of the present invention.

[0026] In this embodiment, the fertilizer tank 41, the fertilizer pump 42, and the fertilizer drive motor 45 are positioned in front of the axle 1A of the front wheel 1, but are not limited to this configuration. The fertilizer tank 41 and the fertilizer pump 42 may be positioned behind the seat 13, on either the left or right side, or on both sides. The fertilizer drive motor 45 may be positioned below the fertilizer tank 41 and midway between the rear wheels 2, in front of and above the axle 2A of the rear wheel 2.

[0027] <Notes on the invention> The agricultural machine of the present invention comprises a traveling body, a fertilizer tank, a fertilizer pump, and a fertilizer drive motor. The traveling body is supported by front and rear wheels so as to travel in a constant direction. The fertilizer tank stores paste fertilizer or liquid fertilizer. The fertilizer pump dispenses the paste fertilizer or liquid fertilizer from the fertilizer tank. The fertilizer drive motor drives the fertilizer pump. The fertilizer drive motor is positioned above the axle of the front wheel. [Industrial applicability]

[0028] This invention is applicable to the field of agricultural machinery. [Explanation of symbols]

[0029] 1 Front wheel 1A axle 2 Rear wheels 2A axle 3. Mobile Unit 41 Fertilizer tank 42 Fertilizer pump 43 Fertilizer nozzle 45 Fertilizer application drive motor 50 Control Unit 58 Positioning Unit 59 Input section 91 Protective member 91A Ventilation holes 100 Agricultural machinery D Direction of travel W (width direction)

Claims

1. A vehicle body supported by the front and rear wheels to move in a constant direction, A fertilizer tank for storing paste fertilizer or liquid fertilizer, A fertilizer pump for dispensing the paste fertilizer or liquid fertilizer from the fertilizer tank, A fertilizer drive motor that drives the fertilizer pump and Equipped with, The fertilizer application drive motor is located below the bonnet on the front side of the traveling machine and above the axle of the front wheel, in an agricultural implement.

2. The fertilizer application drive motor is further provided with a protective member, The agricultural implement according to claim 1, wherein the protective member is positioned in front of the fertilizer drive motor in the direction of travel.

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