Riding type rice transplanter

Abstract

To prevent clogging by using a large amount of sufficiently warmed and dried air for conveying a fertilizer in a riding type rice transplanter for spraying the fertilizer while traveling on a paddy field.SOLUTION: In the riding type rice transplanter which travels by the power of an engine 8 mounted on the front part of a traveling vehicle body 2 and scatters powdery fertilizer in a fertilizer tank to a field by blowing by sucking air around the engine 8 by a blower 5 mounted on the rear part of the traveling vehicle body 2, the engine 8 is covered with an engine cover 7, a front intake port 7B directed forward and a radiator intake port 7A directed sideways are provided on the engine cover 7, and a duct intake port 9A communicating with the blower 5 is provided from the inside of the engine cover 7.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a riding rice transplanter that transplants seedlings and spreads fertilizer in paddy fields. [Background technology]

[0002] A paddy field work vehicle, a riding rice transplanter that transplants seedlings and fertilizes them at the same time, is described in Patent Publication No. 7118018.

[0003] This riding rice transplanter is equipped with a fertilizer tank and seedling transplanter at the rear of the vehicle, and while the seedlings are being transplanted, the suction and airflow of a blower mounted on the side of the fertilizer tank sends granular fertilizer to the vicinity of the transplanted seedlings, allowing fertilization to be carried out at the same time as the seedlings are being transplanted.Since this seedling transplanting work is carried out while traveling through rice paddies, the granular fertilizer is moistened and hardens in the fertilizer transport path, preventing it from being impossible to spread, so the blower that transports the fertilizer draws in warm air from around the engine and uses it for transport. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7118018 Summary of the Invention [Problem to be solved by the invention]

[0005] In the riding rice transplanter, the blower draws in air around the engine, warming it and using the air to transport granular fertilizer. However, if the air around the engine is not warmed up sufficiently, the fertilizer may clog the spray nozzle near the field.

[0006] To provide a riding rice transplanter that spreads fertilizer while traveling in a paddy field, and that prevents clogging by using a large amount of air that has been sufficiently heated and dried for transporting the fertilizer. [Means for solving the problem]

[0007] The above-mentioned object of the present invention is achieved by the following technical means.

[0008] The invention of claim 1 is a riding rice transplanter that runs on the power of an engine 8 mounted on the front of the running body 2, sucks in air around the engine 8 with a blower 5 mounted on the rear of the running body 2, and spreads powdered fertilizer in a fertilizer tank onto a field by blowing air, characterized in that the engine 8 is covered with an engine cover 7, and the engine cover 7 is provided with a front air intake 7B facing forward and a radiator air intake 7A facing sideways, and a duct air intake 9A leading from inside the engine cover 7 to the blower 5.

[0009] The invention of claim 2 is a riding rice transplanter characterized in that a positioning support pipe 11 on which a positioning device 12 is mounted is erected on the running body 2, and engine oil is circulated through the positioning support pipe 11.

[0010] The invention of claim 3 is a riding rice transplanter characterized in that a heat pump device 15 is provided between the inside of the engine cover 7 and the fuel tank 16 and air filter 17, and the heat pump device 15 sends heat from the air inside the engine cover 7 to the fuel tank 16 and around the air filter 17, thereby warming them. [Effects of the Invention]

[0011] In the invention of claim 1, the engine 8 is covered with the engine cover 7, and outside air that flows as the traveling body 2 travels is taken in through the front air intake 7B located in front of it, and a large amount of outside air is taken into the engine cover 7 through the radiator 10 by suction from the radiator air intake 7A located on the side, and the air that passes through the radiator 10 to be heated and the air that enters through the front air intake 7B and is heated around the engine 8 is sent from the duct air intake 9A of the engine cover 7 through the duct 9 to the blower 5, and the large amount of heated air forcefully sends the granular fertilizer in the fertilizer tank to the fertilizer spraying port, so that the fertilizer does not clog the transport route and the field spraying can be performed well.

[0012] In the invention of claim 2, the positioning device 12 is supported at a high position on the traveling vehicle body 2 by the positioning support pipe 11, and engine oil is circulated through this positioning support pipe 11 to cool the engine 8 effectively.

[0013] In the invention of claim 3, the air inside the engine cover 7 on the heat absorption side of the heat pump device 15 is cooled by absorbing heat, and the fuel tank 16 and air filter 17 on the heat exhaust side of the heat pump device 15 are warmed, improving fuel supply and combustion in the engine 8 and improving engine output. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a side view showing a main part of a riding rice transplanter according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is a schematic plan view showing the internal configuration of the engine cover. [Figure 4] FIG. 2 is an enlarged side view of the engine. [Figure 5] FIG. 10 is a front view showing a cooling water cooler of the positioning support pipe. [Figure 6] FIG. 1 is an explanatory diagram of heat transfer using a heat pump device. [Figure 7] FIG. 10 is a schematic rear view showing left and right delineation markers. [Figure 8] FIG. 2 is a schematic rear view showing the planting device. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0016] FIG. 1 shows a side view of a riding rice transplanter, and does not show the driver's seat, the fertilizer tank mounted behind it, the seedling tank for carrying seedlings, or the seedling transplanting device.

[0017] The traveling body 2 has an engine 8 mounted on the front, covered by an engine cover 7, and a pair of front left and right front wheels 3, 3 and a pair of rear left and right rear wheels 4, 4 attached to the lower part of the traveling body 2 for driving and traveling.

[0018] A duct 9 is placed at the bottom of the running body 2 and is connected to a blower 5 located at the rear of the running body 2 from the side of the engine cover 7, so that air is drawn in from inside the engine cover 7 and the granular fertilizer dispensed from the fertilizer tank is transported and released near the seedling planting section of the seedling transplanting device using a large amount of air.

[0019] FIG. 2 is a front perspective view of the engine cover 7, with a radiator intake port 7A provided on the right side for passing outside air drawn in by a fan in the internal radiator 10, a front intake port 7B provided at the front lower part for taking in outside air as the vehicle moves into the engine cover 7, and a duct intake port 9A for the duct 9 provided at the rear of the engine cover 7 for taking in a large amount of outside air that has been warmed inside the engine cover 7, which is then sucked in by the blower 5 through the duct intake port 9A and transported to the granular fertilizer.

[0020] In Figure 4, a positioning device 12 that receives radio waves from positioning satellites to determine the position of the vehicle body 2 on a map is supported by positioning support pipes 11 that stand on the left and right sides of the engine cover 7. This positioning support pipe 11 is hollow and allows engine oil from the engine 8 to circulate inside. Figure 5 shows a configuration in which a radiator-like cooling water cooler 14 is installed across the left and right positioning support pipes 11, allowing engine oil to be cooled more effectively by passing it through the cooling water cooler 14. A visor 13 is installed in front of the cooling water cooler 14 to prevent hot air passing through the cooling water cooler 14 from directly hitting the operator sitting in the cockpit. A windmill pump that rotates with wind is installed on the positioning support pipe 11 to circulate the water in the cooling water cooler 14 and circulate the engine oil. A manual pump is installed on the positioning support pipe 11 to allow engine oil to drain. In addition, the upper part of the positioning support pipe 11 is made of copper pipe with good thermal conductivity, and the other parts are made of lead pipe with low thermal conductivity, which improves the heat exchange effect of the engine oil. Furthermore, it is also possible to use transmission oil from a continuously variable transmission instead of engine oil.

[0021] FIG. 6 shows a configuration in which a heat pump device 15 is provided between the engine cover 7 and the fuel tank 16 and air filter 17. A refrigerant such as carbon dioxide is compressed and released within the heat pump device 15 to transfer heat, thereby removing heat from the hot air in the engine cover 7 and releasing the heat to the fuel tank 16 and air filter 17 side, thereby heating and cooling the air in the engine cover 7.

[0022] Furthermore, if the duct 9 of the blower 5 is removed and a suction hose is connected, the fertilizer can be sucked from the fertilizer bag on the ground and poured into the fertilizer tank, which makes it easier to supply the fertilizer to the fertilizer tank.

[0023] Next, we will describe the control for ensuring the safe operation of each part of the riding rice transplanter. 1. A float link sensor is provided to detect the rise and fall of the float, and the validity of the planting switch input is determined by the rise and fall detection value. 2. A ground sensor is installed on the link of the rake to detect contact with the ground, and the detection value is used to determine the validity of the planting switch input. 3. An ultrasonic sensor is provided on the traveling vehicle body 2 to measure the distance to the water surface or ground in the field, and when the distance outside the field is detected, the planting switch input is enabled. 4. The above is determined when the traveling vehicle body 2 is horizontal. 5. A slope sensor is installed on the lifting link of the planting section, and the validity of the planting switch input is determined by the inclination of the link. 6. A conductivity sensor is installed on the left and right inside of the wheel to detect conductivity, and the validity of the planting switch input is determined by the amount of current passing through (only possible in the field). 7. Due to the electrical conductivity of the cultivator (mud clogging detection unit), when the seedling tank unit is in a planting state in the field, the planting switch input is enabled. 8. A sensor is provided to detect the extension and contraction of the planting lifting cylinder, and the validity of the planting switch input is determined based on the extension and contraction state. 9. An expansion / contraction sensor is installed in the expansion / contraction section of the seedling tank when it is raised or lowered, and the validity of the planting switch input is determined at a specified expansion / contraction. 10. A pendulum sensor that detects lifting and lowering is provided on the planting lifting link, and the validity of the planting switch input is determined at a predetermined lifting and lowering. 11. An object that moves inside the planting lifting link square tube is installed as the planting section is raised and lowered, and a limit switch is installed at the end of the link. The moving object presses the limit switch to detect the raised and lowered state of the planting section, and when the planting section is lowered, the planting on switch is turned on. 12. A proximity switch is provided on the planting rod of the planting section, and a mechanism and control are provided to neutralize the opening of the HST based on the value of the proximity switch. 13. Workers carry a smart key, and a smart key recognition device is installed on the operation panel or in the hood, which uses radio waves to recognize the distance from the smart key, allowing them to start the engine and enter planting when the distance is within a certain range. 14. When the smart key recognition device determines that the operator is located near the driver's seat, it allows the engine to start and the operator to enter planting. 15. A car wash button is provided on the smart key, and when pressed, the stem stops at a position where the car can be washed. Also, the car can be washed only when the smart key recognition device at the rear of the vehicle is out of the recognition range. 16. A seat sensor is installed in the driver's seat to detect when someone is seated and activate the input switch for the electric seedling rail. 17. By placing either the left or right line drawing marker 20L or 20R shown in Figure 7 on the field, the planting clutch is engaged, making it possible to drive the planting device 18. 18. Front plate guards 22L, 22R are provided to protect the left and right sides of the planting device 18 shown in Figure 8, and an attachment sensor 23 is provided on the planting section rear frame 24 to detect attachment, and when attached, the planting clutch engages, enabling the planting device 18 to be driven. The front plate guards 22L, 22R can also be attached by inserting them into the left and right ends of the planting section frame 21. [Explanation of symbols]

[0024] 2 Running vehicle 5 Blower 7 Engine cover 7A radiator intake 7B Front air intake 8 Engine 9 Duct 9A Duct intake 10 Radiator 11 Positioning support pipe 12 Positioning equipment 15 Heat pump equipment

Claims

1. This riding rice transplanter runs on the power of an engine (8) mounted on the front of a running body (2), and uses a blower (5) mounted on the rear of the running body (2) to suck in air around the engine (8) and spray powdered fertilizer in a fertilizer tank onto a field by blowing air. The riding rice transplanter is characterized in that the engine (8) is covered with an engine cover (7), and the engine cover (7) is provided with a front intake port (7B) facing forward and a radiator intake port (7A) facing sideways, and a duct intake port (9A) leading from inside the engine cover (7) to the blower (5).

2. A riding rice transplanter characterized in that a positioning support pipe (11) on which a positioning device (12) is mounted is erected on a traveling vehicle body (2), and engine oil is circulated through the positioning support pipe (11).

3. A riding rice transplanter characterized in that a heat pump device (15) is provided between the inside of an engine cover (7) and a fuel tank (16) and an air filter (17), and the heat pump device (15) sends heat from the air inside the engine cover (7) to the fuel tank (16) and the air filter (17) and heats them.

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