Harvesting machine

Abstract

In harvesting machines, the function of the dustproof net installed over the cooled part is enhanced to prevent crop debris, dust, and other contaminants from adhering to the cooled part. [Solution] The system is equipped with an air intake port 29 located laterally outward from the unit to be cooled 16, a dustproof net 33 provided in the air intake port 29, and a fan 17 provided adjacent to the unit to be cooled 16. As the fan 17 rotates, outside air from laterally outward from the unit flows along the left-right direction, passes through the dustproof net 33, passes through the air intake port 29, and is supplied to the unit to be cooled 16 as cooling air. The dustproof net 33 has a protruding portion 40 that extends laterally outward from the air intake port 29.

Description

Technical Field

[0004]

[0001] The present invention relates to a cooling structure for a cooled part in a harvesting machine.

Background Art

[0002] In a combine, which is an example of a harvesting machine, as disclosed in Patent Document 1, a radiator (corresponding to a cooled part) and a fan are provided on the right side of the machine body. Since the fan is rotationally driven, outside air outside the right side of the machine body flows along the left - right direction and is configured to be supplied to the radiator as cooling air.

[0003] In Patent Document 1, a flat dust - proof net is provided on the right outer side of the radiator, and outside air passes through the dust - proof net and is supplied to the radiator. Adhesion of crop debris, dust, etc. to the radiator is prevented by the dust - proof net.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent harvesting machines, there has been a demand for further preventing adhesion of crop debris, dust, etc. to the cooled part. The present invention aims to prevent adhesion of crop debris, dust, etc. to the cooled part by enhancing the function of the dust - proof net provided for the cooled part in a harvesting machine.

Means for Solving the Problems

[0006] The harvesting machine of the present invention comprises a machine body equipped with a traveling device, a cooling section provided on the machine body, an air intake provided on the machine body's side relative to the cooling section, a dustproof net provided at the air intake, and a fan provided adjacent to the cooling section and driven to rotate. As the fan rotates, outside air from the side of the machine body flows in a left-right direction, passes through the dustproof net and the air intake, and is supplied to the cooling section as cooling air. The dustproof net has a protruding portion that extends outward from the air intake towards the side of the machine body.

[0007] According to the present invention, as the fan is driven to rotate, outside air from the side of the machine flows along the left-right direction, passes through the dustproof net, and through the intake port, and is supplied to the part to be cooled as cooling air. In this case, the dustproof net has a protruding portion that extends outward from the intake port toward the side of the machine.

[0008] According to the present invention, compared to a dustproof net configured as a flat plate, the surface area of ​​the dustproof net can be increased by having protruding portions. A larger surface area of ​​the dustproof net increases the likelihood that crop debris and dust will be captured by the net.

[0009] According to the present invention, the protruding portion of the dustproof net protrudes in a direction away from the part to be cooled and outward from the machine body. Therefore, compared to a flat dustproof net, the protruding portion of the dustproof net is further away from the part to be cooled, and the distance that outside air travels from the protruding portion of the dustproof net to the part to be cooled becomes longer. As the distance the outside air travels from the protruding part of the dustproof net to the area being cooled increases, crop debris and dust, even if they pass through the protruding part of the dustproof net, are more likely to fall downwards before reaching the area being cooled.

[0010] According to the present invention, the dustproof net's function can be enhanced by increasing its surface area and the distance over which outside air passes through the protruding portion of the dustproof net before reaching the cooled area. This enhanced function prevents crop debris, dust, and other particles from adhering to the cooled area.

[0011] In the present invention, it is preferable that an internal dustproof net is provided between the cooled part and the dustproof net.

[0012] According to the present invention, as the fan is driven to rotate, outside air from the side of the machine flows along the left-right direction, passes through the dustproof net and the internal dustproof net, and is supplied to the cooled part as cooling air. In addition to the dustproof net with enhanced functionality as described above, the provision of an internal dustproof net is advantageous in that it prevents crop debris, dust, etc. from adhering to the cooled part.

[0013] In the present invention, it is preferable that the engine is provided at a position on the inner side of the machine body relative to the part to be cooled, and that the fan is provided between the part to be cooled and the engine and is rotationally driven by the power of the engine.

[0014] According to the present invention, the fan is driven to rotate by the power of the engine, and the cooling air that passes through the part to be cooled passes through the fan, passes around the engine, and exits on the opposite side of the part to be cooled. As the cooling air that has passed through the part to be cooled passes around the engine, the hot air around the engine is also expelled to the opposite side of the part to be cooled, which is advantageous in terms of engine cooling.

[0015] According to the present invention, as described above, the dustproof net's functionality is enhanced, reducing the amount of crop debris and dust that enters the area around the engine, thereby protecting the equipment surrounding the engine.

[0016] In the present invention, it is preferable that the protruding portion has an upper portion extending laterally outward from the intake port to the machine body, a lower portion extending laterally outward from the intake port to the machine body, a front portion extending laterally outward from the intake port to the machine body, a rear portion extending laterally outward from the intake port to the machine body, and a side portion connected across the extended end of the upper portion, the extended end of the lower portion, the extended end of the front portion, and the extended end of the rear portion, and located at a position away from the intake port laterally outward from the machine body.

[0017] According to the present invention, the protruding portion of the dustproof net has an upper surface portion, a lower surface portion, a front surface portion, a rear surface portion, and a side surface portion. The side surface portion of the protruding portion of the dustproof net is connected to the respective extended ends of the upper surface portion, lower surface portion, front surface portion, and rear surface portion of the dustproof net, and is positioned along the air intake port.

[0018] This allows for a larger surface area of ​​the dustproof net by utilizing the top, bottom, front, rear, and side surfaces of the protruding portion of the dustproof net, without requiring the protruding portion of the dustproof net to extend excessively outward from the air intake. To increase the surface area of ​​the dustproof net, it is not necessary to extend the protruding portion of the dustproof net excessively outward from the air intake, thus allowing for a more compact design around the dustproof net.

[0019] In the present invention, it is preferable that the protruding portion is configured in the shape of a truncated square pyramid having the upper surface, the lower surface, the front surface, the rear surface, and the side surface.

[0020] According to the present invention, the protruding portion of the dustproof net is configured in the shape of a truncated square pyramid having an upper surface, a lower surface, a front surface, a rear surface, and a side surface, thereby simplifying the configuration of the protruding portion of the dustproof net.

[0021] In the present invention, it is preferable that a dust-proof cover is provided to cover the dust-proof net from the lateral outer side of the machine body, a dust-proof portion through which outside air can pass is provided at the upper part of the dust-proof cover, and a shielding portion through which outside air cannot pass is provided at the lower part of the dust-proof cover.

[0022] According to the present invention, a dust-proof cover is provided to cover the dust-proof net from the lateral outer side of the machine body. In the dust-proof cover, a dust-proof portion through which outside air can pass is provided at the upper part of the dust-proof cover, and a shielding portion through which outside air cannot pass is provided at the lower part of the dust-proof cover. Outside air at a high position with less crop debris, dust, etc. passes through the dust-proof portion of the dust-proof cover and enters the inside of the dust-proof cover, and is supplied to the dust-proof net.

[0023] Thereby, due to the fact that it is outside air at a high position with less crop debris, dust, etc., and the fact that crop debris, dust, etc. are caught in the dust-proof portion of the dust-proof cover, the amount of crop debris, dust, etc. reaching the dust-proof net is reduced. Reducing the amount of crop debris, dust, etc. reaching the dust-proof net is advantageous in terms of increasing the possibility that crop debris, dust, etc. are caught by the dust-proof net, and is advantageous in terms of preventing the adhesion of crop debris, dust, etc. to the cooled portion.

[0024] In the present invention, the protruding portion has an upper surface portion extending from the intake port toward the lateral outer side of the machine body, a lower surface portion extending from the intake port toward the lateral outer side of the machine body, a front surface portion extending from the intake port toward the lateral outer side of the machine body, a rear surface portion extending from the intake port toward the lateral outer side of the machine body, and a lateral surface portion connected across the extending end portions of the upper surface portion, the lower surface portion, the front surface portion, and the rear surface portion, and is located at a position away from the intake port toward the lateral outer side of the machine body. It is preferable that the upper end portion of the shielding portion is located above the lower end portion of the lateral surface portion.

[0025] According to the present invention, the protruding portion of the dust-proof net has an upper surface portion, a lower surface portion, a front surface portion, a rear surface portion, and a lateral surface portion. The lateral surface portion of the protruding portion of the dust-proof net is connected across the extending end portions of each of the upper surface portion, the lower surface portion, the front surface portion, and the rear surface portion of the dust-proof net, and is in a posture along the intake port.

[0026] As a result, even if the protruding portion of the dust-proof net is not protruded more than necessary from the intake port toward the lateral outside of the machine body, the upper surface portion, lower surface portion, front surface portion, rear surface portion, and lateral surface portion of the protruding portion of the dust-proof net can increase the surface area of the dust-proof net. In order to increase the surface area of the dust-proof net, it is not necessary to protrude the protruding portion of the dust-proof net more than necessary from the intake port toward the lateral outside of the machine body, so that the configuration in the vicinity of the dust-proof net can be made compact.

[0027] According to the present invention, in the configuration of the dust-proof net described above, the upper end portion of the shielding portion of the dust-proof cover is located above the lower end portion of the lateral surface portion of the protruding portion of the dust-proof net, and the dust-proof portion of the dust-proof cover is provided at a relatively high position with respect to the dust-proof net. The outside air enters the inside of the dust-proof cover through the dust-proof portion of the dust-proof cover, and then changes its direction and flows downward inside the dust-proof cover to reach the dust-proof net. Therefore, the outside air that enters the inside of the dust-proof cover is likely to have its speed reduced. Similarly, the speed of crop debris, dust, etc. that enter the inside of the dust-proof cover through the dust-proof portion of the dust-proof cover is also likely to be reduced.

[0028] As a result, when crop debris, dust, etc. reach the dust-proof net, it is difficult for the crop debris, dust, etc. to pass through the dust-proof net, and the possibility of being caught by the dust-proof net is increased. Therefore, it is advantageous in terms of preventing the adhesion of crop debris, dust, etc. to the cooled portion.

Brief Description of the Drawings

[0029] [Figure 1] It is a right side view of a sugarcane harvester. [Figure 2] It is a plan view near the engine. [Figure 3] It is a front view near the engine. [Figure 4] It is a longitudinal front view near the dust-proof net and the dust-proof cover. [Figure 5] It is a perspective view of the dust-proof net. [Figure 6]This is a perspective view of the dust cover. [Modes for carrying out the invention]

[0030] Figures 1 to 6 show an example of a sugarcane harvester. In Figures 1 to 6, F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, D indicates the downward direction, R indicates the right direction, and L indicates the left direction.

[0031] (Overall configuration of a sugarcane harvesting machine) As shown in Figure 1, the harvesting unit 3 and the first conveying device 4 are connected to form the machine body 8, and the first conveying device 4 extends diagonally upward and backward from the rear of the harvesting unit 3.

[0032] The right and left front wheels 1 are located on the right and left sides of the harvesting unit 3. The upper cutting device 7 is located on the upper part of the harvesting unit 3 and positioned above and in front of the harvesting unit 3. The right and left rear wheels 2 are located on the lower rear part of the first conveying device 4, and the machine body 8 is supported by the front wheels 1 and rear wheels 2.

[0033] A sorting device 5 is provided vertically at the rear of the first conveying device 4, and a second conveying device 6 extends diagonally upward from the bottom of the sorting device 5. An operating unit 9 is provided on top of the harvesting unit 3, and an engine 10 (see Figures 2 and 3) is provided on the upper front of the first conveying device 4.

[0034] (Operating status of the sugarcane harvesting machine) As shown in Figure 1, as the machine 8 moves forward, the upper leaves of the crops in the field are cut by the upper cutting device 7, and the crops are introduced into the harvesting section 3. The crops introduced into the harvesting section 3 are bent forward, their bases are cut, and they are supplied from the base to the first conveying device 4. The crops supplied to the first conveying device 4 are transported diagonally upward and backward along the first conveying device 4, and are cut to a predetermined length at the rear end of the first conveying device 4 before being supplied to the top of the sorting device 5.

[0035] The crops supplied to the top of the sorting device 5 fall to the front of the second conveying device 6. A sorting fan (not shown) is provided at the top of the sorting device 5, and a sorting airflow is generated by the sorting fan and directed upwards inside the sorting device 5. Inside the sorting device 5, the crops fall to the front of the second conveying device 6 below, and impurities are separated from the crops by the sorting airflow and discharged from the top of the sorting device 5.

[0036] The crops that fall to the front of the second conveying device 6 are transported diagonally upward by the second conveying device 6. A transport vehicle (not shown) is running alongside the sugarcane harvester, and the crops are released from the rear of the second conveying device 6 onto the transport vehicle's loading platform.

[0037] (Configuration near the engine) As shown in Figures 1, 2, and 3, the engine 10 is located above the front of the first conveying device 4, oriented in the left-right direction. The radiator 11, oil cooler 12, and blower fan 13 are located above the rear of the first conveying device 4. The guide duct 14 extends diagonally forward and downward from the radiator 11, oil cooler 12, and blower fan 13 toward the area of ​​the engine 10.

[0038] As shown in Figures 2 and 3, the turbocharger 15 is located at the front of the engine 10, the intercooler 16 is located to the right of the engine 10, and the engine 10 is located on the inner side of the aircraft body 8 relative to the intercooler 16.

[0039] A fan 17 is located on the right side of the engine 10. The fan 17 is located between the intercooler 16 and the engine 10, adjacent to the intercooler 16, and is rotationally driven by the power of the engine 10.

[0040] The air cleaner 18 and pre-cleaner 19 are located above the intercooler 16 and fan 17. Pipe 20 connects the air cleaner 18 to the turbocharger 15. Pipe 21 connects the turbocharger 15 to the intercooler 16. Pipe 22 connects the intercooler 16 to the intake manifold 10a of the engine 10.

[0041] The muffler 23 is located on the left side of the engine 10. The exhaust pipe 24 extends from the turbocharger 15 and is connected to the muffler 23, and extends upward from the muffler 23.

[0042] A transmission case 25 is attached to the left side of the engine 10, and multiple hydraulic pumps 26 are attached to the transmission case 25. Power from the engine 10 is transmitted from a transmission mechanism (not shown) inside the transmission case 25 to the hydraulic pumps 26, driving the hydraulic pumps 26. The hydraulic fluid from the hydraulic pumps 26 is supplied to the harvesting unit 3, the first conveying device 4, the blower fan 13, etc., and the harvesting unit 3, the first conveying device 4, the blower fan 13, etc.

[0043] A box-shaped cover 27 that covers the transmission case 25 and hydraulic pump 26 is provided on the left side of the machine body 8. The top, front, rear, and left side surfaces of the cover 27 are made of flat plates that prevent air from passing through, while the bottom surface is open downwards.

[0044] (Overview of cooling near the engine) As shown in Figures 1, 2, and 3, outside air above the aircraft body 8 is supplied as combustion air from the pre-cleaner 19 through the air cleaner 18 and via pipe 20 to the turbocharger 15. The combustion air is supplied from the turbocharger 15 to the intercooler 16 via pipe 21, and from the intercooler 16 to the intake manifold 10a of the engine 10 via pipe 22. The exhaust from the engine 10 operates the turbocharger 15 and is discharged above the aircraft body 8 through the muffler 23 and exhaust pipe 24.

[0045] As the blower fan 13 is driven to rotate, outside air from above the aircraft 8 flows forward as cooling air and is supplied to the oil cooler 12 and radiator 11. The air then passes through the oil cooler 12 and radiator 11, and through the guide duct 14 to the area of ​​the engine 10.

[0046] When the fan 17 is driven to rotate, outside air from the right side of the aircraft 8 flows to the left as cooling air, is supplied to the intercooler 16, and flows through the intercooler 16 to the area of ​​the engine 10.

[0047] Cooling air from the oil cooler 12 and radiator 11, and cooling air from the intercooler 16, merge in the area of ​​the engine 10 and flow from the area of ​​the engine 10 to the left of the fuselage 8, and are discharged downward from the lower surface of the cover 27. As a result, the hot air surrounding the engine 10 flows to the left of the fuselage 8 together with the cooling air and is discharged, promoting the cooling of the engine 10, and also cooling electrical components (not shown) located near the engine 10.

[0048] The blower fan 13 and fan 17 are periodically driven in reverse for a set period of time. This blows debris attached to the oil cooler 12 and radiator 11 backward, and debris attached to the intercooler 16 outwards to the right.

[0049] (Support structure of the intercooler 16 by the support frame 28) As shown in Figures 2, 3, and 4, the support frame 28 is attached to the upper right part of the front of the first conveying device 4. The support frame 28 has a top surface 28a, a bottom surface 28b, a front surface 28c, a rear surface 28d, and a left side surface 28e, and is configured in a box shape.

[0050] The upper surface 28a, lower surface 28b, front surface 28c, rear surface 28d, and side surface 28e of the support frame 28 are made of flat plates through which air cannot pass. An opening 28f is provided in the side surface 28e of the support frame 28, and the fan 17 is positioned in the opening 28f of the support frame 28. The right side of the support frame 28 is open and serves as an air intake 29.

[0051] On the side surface 28e of the support frame 28, the mounting frame 30 is attached to the upper and lower portions of the opening 28f of the support frame 28, and the intercooler 16 is attached to the mounting frame 30.

[0052] The intercooler 16 is located inside the support frame 28, overlapping with the front portion 28c and rear portion 28d of the support frame 28 in a front view, and overlapping with the upper portion 28a and lower portion 28b of the support frame 28 in a plan view.

[0053] (Configuration of the internal dustproof net 32) As shown in Figures 3 and 4, the upper and lower mounting frames 31 are attached to the front portion 28c and rear portion 28d of the support frame 28. The internal dustproof net 32 ​​is attached to the mounting frame 31. The internal dustproof net 32 ​​is positioned closer to the intercooler 16 than the air intake port 29 of the support frame 28, and is located close to the right side of the intercooler 16.

[0054] The internal dustproof net 32 ​​is configured to be larger than the intercooler 16. The upper edge of the internal dustproof net 32 ​​is located above the upper edge of the intercooler 16, and the lower edge of the internal dustproof net 32 ​​is located below the lower edge of the intercooler 16.

[0055] The internal dustproof net 32 ​​is located inside the support frame 28, overlapping with the front portion 28c and rear portion 28d of the support frame 28 in a front view, and overlapping with the upper portion 28a and lower portion 28b of the support frame 28 in a plan view. The internal dustproof net 32 ​​is located between the intercooler 16 and the dustproof net 33, which will be described later.

[0056] (Configuration of dustproof net 33) As shown in Figures 2, 3, and 4, the dustproof net 33 is attached to the air intake port 29 of the support frame 28. As shown in Figures 4 and 5, the dustproof net 33 is constructed by attaching a sheet-like dustproof member to a frame made up of connected elongated frames 41, 42, and 43.

[0057] The frame 41 is attached to the right lateral outer edge of the upper surface 28a, lower surface 28b, front surface 28c, and rear surface 28d of the support frame 28, thereby attaching the dustproof net 33 to the air intake port 29 of the support frame 28. The dustproof net 33 is removable from the air intake port 29 of the support frame 28.

[0058] The dustproof net 33 has an upper portion 34, a lower portion 35, a front portion 36, a rear portion 37, a side portion 38, and a lower side portion 39. The upper portion 34, the lower portion 35, the front portion 36, the rear portion 37, the side portion 38, and the lower side portion 39 are made of a sheet-like dustproof material through which air can pass.

[0059] The upper portion 34 is attached to the upper frames 41, 42, and 43 and extends outward to the right of the aircraft body 8 from the upper frame 41 (air intake 29 of the support frame 28). The lower portion 35 is attached to the lower frames 41, 42, and 43 and extends outward to the right of the aircraft body 8 from the lower frame 41 (air intake 29 of the support frame 28).

[0060] The front section 36 is attached to the front frames 41, 42, and 43 and extends outward to the right of the aircraft body 8 from the front frame 41 (air intake 29 of the support frame 28). The rear section 37 is attached to the rear frames 41, 42, and 43 and extends outward to the right of the aircraft body 8 from the rear frame 41 (air intake 29 of the support frame 28).

[0061] The side section 38 is attached across the frame 43 and extends to the respective extended ends of the upper section 34, lower section 35, front section 36, and rear section 37, and is located away from the air intake 29 of the support frame 28 to the right and outward of the aircraft body 8. The lower side surface portion 39 is attached to the lower frame 41 and is located below the lower surface portion 35.

[0062] The dustproof net 33 has an upper portion 34, a lower portion 35, a front portion 36, a rear portion 37, and a side portion 38. A protruding portion 40 is provided on the dustproof net 33 that protrudes from the air intake 29 of the support frame 28 toward the right side outward of the machine body 8, and the protruding portion 40 is configured in the shape of a truncated square pyramid.

[0063] As shown in Figure 4, in front and side views, the lower end of the side portion 38 of the dustproof net 33 (the upper end of the bottom portion 35) (the lower frame 43) is located above the lower end of the intercooler 16 and the lower end of the internal dustproof net 32, and below the upper end of the intercooler 16 and the upper end of the internal dustproof net 32. In front and side views, the upper end of the side surface 38 (lower end of the top surface 34) (upper frame 43) of the dustproof net 33 is located above the upper end of the intercooler 16 and the upper end of the internal dustproof net 32.

[0064] (Composition of dust cover 50) - 1 As shown in Figures 1, 2, and 3, a dust cover 50 that covers the dust net 33 from the side outside the machine body 8 is attached to the support frame 28. As shown in Figures 4 and 6, the dust cover 50 is constructed by attaching a sheet-like dustproof member and a flat plate to a frame made up of connected elongated frames 64, 65, 66, 67, 68, 69, 70, and 71.

[0065] The front frame 69 of the dust cover 50 is attached to the end of the front portion 28c of the support frame 28 so as to be able to swing around an axis P1 along the vertical direction. The state shown in Figures 2, 3, and 4 is when the dust cover 50 is operated to the closed position that covers the dust net 33. In the closed position, the dust cover 50 extends above the support frame 28, and the upper part of the dust cover 50 is located to the right and outward of the air cleaner 18.

[0066] From the state shown in Figures 2, 3, and 4, the dust cover 50 is opened outwards to the right of the machine body 8 around the axis P1, thereby opening the area around the dust net 33, making it easy to attach and detach the dust net 33.

[0067] (Configuration of dust cover 50) - 2 As shown in Figures 4 and 6, the dust cover 50 has an upper surface portion 51, an upper front portion 52, an upper rear portion 53, an upper right side portion 54, an upper left side portion 55, a middle upper portion 56, a middle front portion 57, a middle rear portion 58, a middle side portion 59, a lower surface portion 60, a lower front portion 61, a lower rear portion 62, and a lower side portion 63.

[0068] The top surface 51, upper front surface 52, upper rear surface 53, upper right side surface 54, and upper left side surface 55 are attached to the upper parts of frames 64, 66, 67, 68 and frame 65. The top surface 51 is made of a flat plate that air cannot pass through. The upper front surface 52, upper rear surface 53, upper right side surface 54, and upper left side surface 55 are made of sheet-like dustproof material that air can pass through.

[0069] The middle upper section 56, middle front section 57, middle rear section 58, and middle side section 59 are attached to the lower parts of frames 67, 68 and frame 65, and to the upper part of frame 69. The middle upper section 56 is made of a flat plate that air cannot pass through. The middle front section 57, middle rear section 58, and middle side section 59 are made of sheet-like dustproof material that air can pass through.

[0070] The states shown in Figures 4 and 6 are those in which an airtight shielding plate 44 is attached to the middle front section 57, middle rear section 58, and middle side section 59 from the inside of the dust cover 50, and air cannot pass through the middle front section 57, middle rear section 58, and middle side section 59.

[0071] The shielding plate 44 can be individually removed from the middle front section 57, the middle rear section 58, and the middle side section 59. When the shielding plate 44 is removed, air can pass through the middle front section 57, the middle rear section 58, and the middle side section 59.

[0072] The lower surface portion 60, the lower front portion 61, the lower rear portion 62, and the lower side portion 63 are attached to the lower parts of frames 68, 70, 71, and frame 69. The lower surface portion 60, the lower front portion 61, the lower rear portion 62, and the lower side portion 63 are made of flat plates that air cannot pass through.

[0073] (Positional relationship between dustproof net 33 and dustproof cover 50) As shown in Figures 2 and 4, the top surface 51, upper front surface 52, upper rear surface 53, upper right side surface 54, and upper left side surface 55 of the dust cover 50 are located above the air intake 29 of the support frame 28, the internal dust net 32, and the intercooler 16.

[0074] The middle front section 57, middle rear section 58, and middle side section 59 (shielding plate 44) of the dust cover 50 are located to the right of the upper half of the air intake port 29 of the support frame 28, to the right of the upper half of the internal dust net 32, and to the right of the upper half of the intercooler 16.

[0075] The lower front portion 61, lower rear portion 62, and lower side portion 63 of the dust cover 50 are located to the right of the lower half of the air intake port 29 of the support frame 28, to the right of the lower half of the internal dust net 32, and to the right of the lower half of the intercooler 16.

[0076] In the dust cover 50, when the shielding plate 44 is removed from the middle front section 57, the middle rear section 58, and the middle side section 59, the upper ends of the parts that air cannot pass through become the upper ends (frames 68) of the lower front section 61, the lower rear section 62, and the lower side section 63 of the dust cover 50.

[0077] In this case, the upper ends (frames 68) of the lower front portion 61, lower rear portion 62, and lower side portion 63 of the dust cover 50 are located above the lower end (upper end of the bottom portion 35) (lower frame 43) of the side portion 38 of the dust net 33, and below the upper end (lower end of the top portion 34) (upper frame 43) of the side portion 38 of the dust net 33.

[0078] In the dust cover 50, when the shielding plate 44 is attached to at least one of the middle front portion 57, the middle rear portion 58, and the middle side portion 59, the upper end of the portion to which air cannot pass becomes the upper end (frame 67) of the middle front portion 57 (middle rear portion 58, middle side portion 59) to which the shielding plate 44 is attached in the dust cover 50.

[0079] In this case, the upper end (frame 67) of the middle front section 57 (middle rear section 58, middle side section 59) to which the shielding plate 44 of the dust cover 50 is attached is located above the lower end (upper end of the bottom section 35) (lower frame 43) of the side section 38 (lower end of the top section 34) (upper frame 43) of the dust net 33, in both front and side views, and above the upper end (lower end of the top section 34) (upper frame 43) of the side section 38 (top section 34) of the dust net 33.

[0080] (Airflow from dust cover 50 and dust net 33 to intercooler 16) As shown in Figures 4 and 6, when the dust cover 50 has shielding plates 44 attached to the middle front section 57, the middle rear section 58, and the middle side section 59, the fan 17 is driven to rotate, causing outside air from the right side of the machine body 8 to enter the dust cover 50 as cooling air, passing through the upper front section 52, the upper rear section 53, the upper right side section 54, and the upper left side section 55, and flowing downwards inside the dust cover 50.

[0081] If the shielding plate 44 is removed from the middle front section 57 (middle rear section 58, middle side section 59) of the dust cover 50, in addition to the aforementioned cooling airflow, outside air from the right side outward of the aircraft body 8 passes through the middle front section 57 (middle rear section 58, middle side section 59) from which the shielding plate 44 has been removed, and enters the interior of the dust cover 50 as cooling air.

[0082] Cooling air entering the dust cover 50 passes through the dust net 33 (top section 34, bottom section 35, front section 36, rear section 37, side section 38, lower side section 39), through the air intake 29 of the support frame 28, and enters the interior of the support frame 28. Cooling air that enters the interior of the support frame 28 passes through the internal dust net 32 ​​and is supplied to the intercooler 16.

[0083] (First alternative embodiment of the invention) In the dustproof net 33, the protruding portion 40 may be configured in the shape of a truncated cone. The dustproof net 33 may be provided with multiple protruding portions 40 in the shape of a truncated square pyramid or a truncated cone. In the dust cover 50, the upper surface portion 51 may be made of a sheet-like dustproof material through which air can pass.

[0084] (Second alternative embodiment of the invention) Instead of the intercooler 16, a radiator 11, an oil cooler 12, or the like may be provided as the part to be cooled.

[0085] (Third alternative form of the invention) The cooling unit, fan 17, internal dustproof net 32, dustproof net 33, and dustproof cover 50 may be provided on the left side of the aircraft body 8. In this configuration, outside air from the left lateral outward side of the aircraft body 8 flows to the right, becoming cooling air that passes through the dust cover 50, dust net 33, and internal dust net 32 ​​before being supplied to the part to be cooled.

[0086] (Fourth alternative embodiment of the invention) The cooling section may be located in the center of the left and right sides of the aircraft body 8. In this configuration, the fan 17, internal dust net 32, dust net 33, and dust cover 50 may be provided on the right side of the part to be cooled, or on the left side of the part to be cooled.

[0087] (Fifth alternative embodiment of the invention) The internal dustproof net 32 ​​may be provided at the air intake port 29 of the support frame 28. In this configuration, the internal dustproof net 32 ​​is preferably attached to the support frame 28 such that it covers the entire portion of the air intake port 29 of the support frame 28.

[0088] (Sixth alternative embodiment of the invention) A crawler-type running gear (not shown) may be provided on the machine body 8 instead of the front wheels 1 and rear wheels 2.

[0089] (Correspondence with claims)-1 The front wheels 1 and rear wheels 2 correspond to the running gear. The intercooler 16 corresponds to the part being cooled.

[0090] In the dust cover 50, the upper front section 52, the upper rear section 53, the upper right side section 54, the upper left side section 55, the middle front section 57 from which the shielding plate 44 has been removed, the middle rear section 58 from which the shielding plate 44 has been removed, and the middle side section 59 from which the shielding plate 44 has been removed correspond to the dust-proof sections.

[0091] In the dust cover 50, the middle front section 57 to which the shielding plate 44 is attached, the middle rear section 58 to which the shielding plate 44 is attached, the middle side section 59 to which the shielding plate 44 is attached, the bottom section 60, the lower front section 61, the lower rear section 62, and the lower side section 63 correspond to the shielding sections.

[0092] In the dustproof net 33, the lower frame 43 corresponds to the lower end of the side surface 38. In the dust cover 50, when the shielding plate 44 is attached to at least one of the middle front portion 57, the middle rear portion 58, and the middle side portion 59, the frame 67 located above the shielding plate 44 corresponds to the upper end of the shielding portion. In the dust cover 50, when the shielding plate 44 is removed from the middle front portion 57, the middle rear portion 58, and the middle side portion 59, the frame 68 corresponds to the upper end of the shielding portion.

[0093] (Correspondence with claims)-2 The aircraft is equipped with a body 8 that has a running gear (1 front wheel, 2 rear wheels). The aircraft body 8 is equipped with a cooling section (intercooler 16). An air intake port 29 is provided on the side of the aircraft body 8 relative to the part to be cooled (intercooler 16). A dustproof net 33 is provided at the air intake port 29. A fan 17 is provided adjacent to the part to be cooled (intercooler 16) and is driven to rotate. As the fan 17 rotates, outside air from the side of the machine body 8 flows along the left-right direction, passes through the dustproof net 33, passes through the intake port 29, and is supplied as cooling air to the part to be cooled (intercooler 16). The dustproof net 33 has a protruding portion 40 that extends outward from the air intake 29 toward the side of the aircraft body 8.

[0094] (Correspondence with claims)-3 The protruding portion 40 has an upper portion 34 extending laterally outward from the air intake 29 toward the aircraft body 8, a lower portion 35 extending laterally outward from the air intake 29 toward the aircraft body 8, a front portion 36 extending laterally outward from the air intake 29 toward the aircraft body 8, a rear portion 37 extending laterally outward from the air intake 29 toward the aircraft body 8, and a side portion 38 that is connected across the extended end of the upper portion 34, the extended end of the lower portion 35, the extended end of the front portion 36, and the extended end of the rear portion 37, and is located at a position away from the air intake 29 toward the aircraft body 8.

[0095] The protruding portion 40 is configured in the shape of a truncated square pyramid, having an upper surface portion 34, a lower surface portion 35, a front surface portion 36, a rear surface portion 37, and a side surface portion 38.

[0096] (Correspondence with claims)-4 An internal dustproof net 32 ​​is provided between the cooled section (intercooler 16) and the dustproof net 33.

[0097] The engine 10 is located on the inner side of the airframe 8 relative to the cooled section (intercooler 16). A fan 17 is installed between the part to be cooled (intercooler 16) and the engine 10, and is rotationally driven by the power of the engine 10.

[0098] (Correspondence with claims)-5 A dust cover 50 is provided that covers the dust net 33 from the outside of the side of the aircraft body 8. Dust sections that allow outside air to pass through (upper front section 52, upper rear section 53, upper right side section 54, upper left side section 55, middle front section 57 with the shielding plate 44 removed, middle rear section 58 with the shielding plate 44 removed, middle side section 59 with the shielding plate 44 removed) are provided on the top of the dust cover 50.

[0099] A shielding section (a middle front section 57 to which a shielding plate 44 is attached, a middle rear section 58 to which a shielding plate 44 is attached, a middle side section 59 to which a shielding plate 44 is attached, a bottom section 60, a lower front section 61, a lower rear section 62, and a lower side section 63) that prevents outside air from passing through is provided at the bottom of the dust cover 50.

[0100] The upper ends of the shielding portions of the dust cover 50 (the middle front portion 57 to which the shielding plate 44 is attached, the middle rear portion 58 to which the shielding plate 44 is attached, and the middle side portion 59 to which the shielding plate 44 is attached) are located above the lower ends of the side portion 38 of the dust net 33. The upper ends of the shielding portions (lower front portion 61, lower rear portion 62, and lower side portion 63) of the dust cover 50 are located above the lower ends of the side portion 38 of the dust net 33. [Industrial applicability]

[0101] This invention can be applied not only to sugarcane harvesters, but also to conventional and self-propelled combine harvesters, as well as other harvesting machines such as edamame harvesters. [Explanation of symbols]

[0102] 1. Front wheel (running mechanism) 2. Rear wheels (running mechanism) 8. Body 10 エンジン 16 インタークーラ(cooled part) 17 ファン 29 sucking mouth 32 Internal dustproof ネット 33 Dustproof ネット 34. Upper face 35 Lower part 36. Front 37 Back of face 38. Horizontal face 40 Highlighted parts 43 フレーム(lower end) 50 dustproof カバー 52. Upper front section (dustproof section) 53. Upper rear face (dustproof section) 54. Upper right horizontal section (dustproof section) 55. Upper left horizontal section (dustproof section) 57. Front section (dustproof section) (shielding section) 58. Middle and rear face (dustproof section) (masking section) 59. Middle horizontal section (dustproof section) (shielding section) 60. Lower part (covered part) 61. Lower front part (covering part) 62. Lower back of the face (covered area) 63. Lower horizontal face (covered area) 67 フレーム(upper end) 68 フレーム(upper end)

Claims

1. A vehicle equipped with a running gear, The cooling section provided on the aforementioned aircraft, With respect to the part to be cooled, an air intake port is provided at a position laterally outward of the machine body, A dustproof net is provided at the aforementioned air intake, A fan is provided adjacent to the part to be cooled and is driven to rotate, As the fan is driven to rotate, outside air from the side of the unit flows along the left-right direction, passes through the dustproof net, passes through the air intake, and is supplied to the part to be cooled as cooling air. The dustproof net of the harvesting machine has a protruding portion that extends outward from the air intake to the side of the machine body.

2. The harvesting machine according to claim 1, further comprising an internal dustproof net provided between the cooled section and the dustproof net.

3. An engine is provided, located on the inner side of the aircraft body relative to the part to be cooled. The harvesting machine according to claim 1, wherein the fan is provided between the part to be cooled and the engine and is rotationally driven by the power of the engine.

4. The aforementioned protruding portion, An upper portion extending laterally outward from the air intake port of the aircraft, The lower portion extending outward from the air intake port, The front portion extending outward from the air intake, A rear portion extending laterally outward from the aforementioned air intake, The harvesting machine according to claim 1, having a side surface that is connected across the extended end of the upper surface, the extended end of the lower surface, the extended end of the front surface, and the extended end of the rear surface, and is located at a position away from the air intake port to the side of the machine body.

5. The harvesting machine according to claim 4, wherein the protruding portion is configured in the shape of a truncated square pyramid having the upper surface, the lower surface, the front surface, the rear surface, and the side surface.

6. The aforementioned dustproof net is provided with a dustproof cover that covers the side outside of the aircraft body. A dustproof section that allows outside air to pass through is provided on the upper part of the dustproof cover. The harvesting machine according to claim 1, wherein a shielding section that prevents outside air from passing through is provided at the lower part of the dust cover.

7. The aforementioned protruding portion, An upper portion extending laterally outward from the air intake port of the aircraft, The lower portion extending outward from the air intake port, The front portion extending outward from the air intake, A rear portion extending laterally outward from the aforementioned air intake, It has a side surface that is connected across the extended end of the upper surface, the extended end of the lower surface, the extended end of the front surface, and the extended end of the rear surface, and is located at a position away from the intake port to the side of the machine body. The harvesting machine according to claim 6, wherein the upper end of the shielding portion is located above the lower end of the side surface portion.

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