JP7370839B2 - combine - Google Patents

Description

The present invention relates to a combine harvester equipped with an engine room.

A combine harvester is known in which the engine room is enlarged and an exhaust gas purification device (DPF, SCR), etc. are housed in the engine room (see, for example, Patent Document 1).

JP2017-216884A

In this type of combine harvester, it is proposed to use the space in the engine room to place electrical components, but if the electrical components are placed in the engine room, the electrical components will be affected by the heat generated by exhaust gas purification equipment. There is a risk.

The present invention was created for the purpose of solving these problems in view of the above-mentioned actual circumstances. and an air cleaner that is housed in the engine room and purifies the air supplied to the engine, the air cleaner being above the blower fan and above the blower fan. An electrical component is disposed in the air blowing path, downstream of the air cleaner in the air blowing path, and an exhaust gas purification device is housed in the engine room and purifies the exhaust gas of the engine; a partition member disposed along the blowing direction of the blower fan and partitioning the space above the engine into one space and the other space; the exhaust gas purification device is disposed in the one space; The combine harvester is characterized in that an electrical component is placed in the other space and attached to the partition member .
A second aspect of the invention provides a driver's seat, a wall that partitions the driver's seat and the engine room, and an opening formed in the wall that allows maintenance of the electrical components from the driver's seat side. and an opening/closing cover that covers the opening in an openable/closable manner, and the opening and the opening/closing cover are arranged on a side of the driver's seat, the combine harvester according to claim 1. .

According to the invention of claim 1, the air cleaner is disposed above the blower fan and in the blower path of the blower fan, and furthermore, the electrical components are placed downstream of the air cleaner in the blower path, so that the air cleaner is placed in the engine compartment. Not only can you use the space inside to place electrical components, but you can also reduce the effect of heat on electrical components by cooling them using the cooling air flowing into the air cleaner.
In addition, a partition member is provided above the engine along the direction of air blowing by the blower fan, and partitions the space above the engine into one space and the other. is placed in the other space, it is possible not only to reduce the possibility that the electrical components will be affected by the heat generated by the exhaust gas purification device, but also to guide the cooling air to the air cleaner to the electrical components using the partition member. Further, since the electrical components are attached to the partition member, the structure can be simplified by eliminating the need for a dedicated attachment member.
According to the invention of claim 2, since the opening and opening/closing cover for maintaining the electrical components are arranged on the side of the driver's seat, even though the electrical components are arranged in the engine compartment, the opening and closing cover for maintaining the electrical components Maintenance can be easily performed.

FIG. 1 is a right side view of a combine harvester according to an embodiment of the present invention. FIG. 1 is a left side view of a combine harvester according to an embodiment of the present invention. FIG. 1 is a plan view of a combine harvester according to an embodiment of the present invention. FIG. 2 is a left side view showing the operating section and engine room of the combine harvester according to the embodiment of the present invention. It is a rear view showing an engine room of a combine concerning an embodiment of the present invention. FIG. 2 is a right side view showing the operating section and engine room of the combine harvester according to the embodiment of the present invention. FIG. 2 is a right side view showing the operating section (with the removable cover and driver's seat removed) and engine room of the combine according to the embodiment of the present invention. FIG. 1 is a perspective view showing a cabin according to an embodiment of the present invention. FIG. 2 is a perspective view of the cabin according to the embodiment of the present invention, with the right front pillar omitted. FIG. 2 is a perspective view showing the cabin according to the embodiment of the present invention with the driver's seat removed. FIG. 2 is a perspective view showing a state in which the detachable cover of the cabin according to the embodiment of the present invention is removed. 1 is a diagram of a driver seat and a driver seat support device according to an embodiment of the present invention, in which (a) is a side view of the driver seat and the driver seat support device, and (b) is a front view of the driver seat and the driver seat support device. . FIG. 2 is a right side view showing the operating section and engine room of the combine harvester according to the embodiment of the present invention. FIG. 2 is a left side view showing the operating section and engine room of the combine harvester according to the embodiment of the present invention. It is a rear view showing an engine room of a combine concerning an embodiment of the present invention.

Embodiments of the present invention will be described below based on the drawings. In FIGS. 1 to 3, 1 is a combine harvester, and the combine 1 is connected to a traveling machine body 4 having a crawler-type running section 3 below a body frame 2, and to the front part of the traveling machine body 4 so as to be able to rise and fall freely. a threshing section 6 which is arranged on the left side of the traveling machine body 4 and threshes and sorts grains from the stem culms cut by the preprocessing section 5, and a threshing section which is arranged on the right side of the traveling machine body 4 A grain tank 7 that stores the grains sorted by the grain tank 6 and a discharge auger 8 that discharges the grains in the grain tank 7 to the outside of the machine are arranged on the right side of the traveling machine body 4 and on the front side of the grain tank 7. and an operating section 9.

The driving section 9 includes a cabin 10 that covers a driving space, and in the driving space covered by the cabin 10, a driving seat 11 on which an operator sits and various operating tools are arranged. The cabin 10 has a doorway 10a on the right side, and an operator gets on and off the vehicle through the doorway 10a. The cabin 10 also includes a sliding door 12 that covers the entrance 10a, and the entrance 10a is opened and closed based on the sliding operation of the door 12.

As shown in FIGS. 4 to 6, an engine room 15 that accommodates an engine 14 and the like is formed below the rear of the driver's seat 11 and in front of the grain tank 7. A radiator 16 and a blower fan 17 are arranged near the right side of the engine 14, and as the blower fan 17 is driven, engine cooling air is introduced into the engine room 15 from the right side of the fuselage via the dustproof net 15a. . The engine room 15 is covered at the front, rear, and upper part, and has an open air exhaust port 15b on the left side. As a result, the engine cooling air introduced into the engine room 15 passes through the radiator 16, passes in front, behind, and above the engine 14, and is discharged from the left side of the engine room 15.

The engine 14 is connected to an intake path for introducing intake air from outside the engine and an exhaust path for discharging exhaust gas outside the engine. A precleaner 18 and an air cleaner 19 are provided in the intake path, and the outside air purified by the precleaner 18 is passed through an intake connection pipe 20 that connects the intake outlet of the precleaner 18 and the intake inlet of the air cleaner 19. Air that is sucked into the air cleaner 19 and purified by the air cleaner 19 is sucked into the engine 14 via an intake pipe 21 that connects the intake outlet of the air cleaner 19 and the intake port of the engine 14 .

The exhaust path is provided with a particulate matter removal device 22 (DPF: Diesel Particulate Filter) and a nitrogen oxide purification device 23 (SCR: Selective Catalytic Reduction) as exhaust gas purification devices, so that the exhaust gas of the engine 14 is Exhaust gas is discharged to the particulate matter removal device 22 through an exhaust pipe 24 that connects the exhaust port of the engine 14 and the exhaust inlet of the particulate matter removal device 22, and the exhaust gas purified by the particulate matter removal device 22 is , is discharged to the nitrogen oxide purification device 23 via an exhaust connection pipe 25 that connects the exhaust outlet of the particulate matter removal device 22 and the exhaust inlet of the nitrogen oxide purification device 23. The exhaust gas purified by the nitrogen oxide purification device 23 is discharged to the outside of the aircraft via a tail pipe 26 that is connected at one end to the exhaust outlet of the nitrogen oxide purification device 23 and has an exhaust outlet 26a at the other end. be done.

Incidentally, the precleaner 18 is a device that generates a vortex using the force of intake air to separate large particles in the intake air, and the air cleaner 19 is a device that filters the intake air with a replaceable element. The particulate matter removal device 22 is a device that removes particulate matter from exhaust gas, and removes the collected particulate matter by combustion or the like in order to eliminate clogging caused by the collected particulate matter. A reproduction means is provided. Further, the nitrogen oxide purification device 23 is a device that purifies nitrogen oxides in the exhaust gas. Specifically, it injects urea water into the exhaust gas and converts the nitrogen oxides contained in the exhaust gas into nitrogen, water vapor, etc. Convert it to make it harmless.

The air cleaner 19, particulate matter removal device 22, and nitrogen oxide purification device 23 are arranged in a space above the engine 14. In the space above the engine 14, a horizontal frame portion 51 of a support frame 50 (see FIGS. 14 to 16), which is erected on the fuselage frame 2 behind the engine 14, is arranged. An air cleaner 19, a particulate matter removal device 22, and a nitrogen oxide purification device 23 are installed. In this embodiment, the air cleaner 19 is arranged directly above the engine 14 (blow fan 17), and the particulate matter removal device 22 is arranged behind the air cleaner 19. A nitrogen oxide purification device 23 is arranged above. According to such an arrangement, the particulate matter removal device 22 and the nitrogen Since the oxide purification device 23 is cooled, the heat generation of the particulate matter removal device 22 and the nitrogen oxide purification device 23 can be suppressed. Note that the support frame 50 includes left and right vertical frames 52 erected on the body frame 2 and a plurality of horizontal frames 51 that connect the left and right vertical frames 52 to each other.

Next, the configuration of the cabin 10 (operating section 9) will be explained with reference to FIGS. 7 to 12.

The cabin 10 includes a wall portion 30 that partitions the driving section 9 and the engine room 15 below the driver's seat 11. The wall portion 30 vertically rises from the rear end of the floor portion 31 of the cabin 10 and includes a vertical surface portion 32 that covers the front of the engine 14 , and extends in an inclined shape so as to recede upward from the upper end of the vertical surface portion 32 . An inclined surface part 33 that covers the front and upper part of the upper space. The inclined surface portion 33 also includes two openings 34 and 35 for maintenance that communicate the driving section 9 and the engine room 15, and opening/closing covers 61 and 62 that cover the openings 34 and 35 in an openable and closable manner. .

The inclined surface part 33 is provided in a wide range from below the driver's seat 11 to the rear of the driver's seat 11, and the first opening 34 is provided in the inclined surface part from below the driver's seat 11 to the rear of the driver's seat 11. It is formed so that substantially the entire height direction of 33 is open. Further, the second opening 35 has a smaller opening area than the first opening 34 and is formed on the left side of the driver's seat 11. Therefore, when opening and closing the first opening 34, it is necessary to attach and detach the driver's seat 11, but when opening and closing the second opening 35, it is not necessary to attach and detach the driver's seat 11.

The first opening/closing cover 61 includes a recess 61a in the middle part in the height direction into which a part of the driver's seat 11 enters. The driver's seat 11 includes a seat part 11a and a backrest part 11b rising from the rear end of the seat part 11a, and the rear end of the seat part 11a and the lower end of the backrest part 11b are first opened and closed. It is arranged so as to fit into the recess 61a of the cover 61.

A driver seat support device 36 that supports the driver seat 11 in an adjustable manner is attached to the wall portion 30. The driver's seat support device 36 of this embodiment includes a height adjusting section 38 that allows the height of the driver's seat 11 to be adjusted according to the operation of the height adjustment lever 37, and a height adjustment section 38 that allows the height of the driver's seat 11 to be adjusted according to the operation of the height adjustment lever 37; 11, and a mounting portion 41 that is provided integrally with the height adjustment portion 38 and attached to the wall portion 30.

The attachment portion 41 of the driver seat support device 36 is fastened only to the front facing surface of the wall portion 30. Specifically, the mounting part 41 includes a downward extending part 41a that extends downward from the lower end of the height adjusting part 38 and has two fastening parts T1 and T2 arranged vertically, and It is provided with a rear extending portion 41b that extends rearward and downward from the upper end in an inclined shape and has two fastening portions T3 and T4 arranged side by side. The fastening portions T3 and T4 are fastened to the inclined surface portion 33 (first opening/closing cover 61) of the wall portion 30.

As described above, since the mounting portion 41 of the driver seat support device 36 is fastened only to the front facing surface of the wall portion 30, the driver seat support device 36 and the driver seat 11 can be attached to the wall by simply releasing the fastening operation from the front. It becomes possible to easily remove it from the section 30. For example, an operator who has disembarked from the aircraft can access the fastening parts T1 to T4 through the entrance/exit 10a and remove the driver's seat support device 36 and the driver's seat 11.

Next, the characteristic configuration of the present invention will be explained with reference to FIGS. 13 to 15.

Electrical components 70 are arranged within the engine room 15. The electrical components 70 of this embodiment arranged in the engine room 15 include a NOX sensor 71 that is a sensor related to an exhaust gas purification device, an engine ECU 72 that controls the engine 14, a flasher unit 74 that includes a plurality of relays 73, and a plurality of This includes a fuse box 75 containing fuses of the type shown in FIG.

Further, in the engine room 15, a blower fan 17 is arranged above the engine 14 along the air blowing direction (left and right direction), and the space above the engine 14 is divided into a first space S1 (rear space) and a second space S2. A partition member 80 is provided to partition the front space into a front space. Further, since the partition member 80 is arranged above and adjacent to the air cleaner 19, the first space S1 and the second space S2 can also be expressed as being partitioned by the air cleaner 19 and the partition member 80.

A particulate matter removal device 22 and a nitrogen oxide purification device 23 are arranged in the first space S1, and an electrical component 70 is arranged in the second space S2. According to this arrangement, not only can the electrical components 70 be placed using the space in the engine room 15, but also the electrical components 70 can be prevented from being affected by the heat generated by the particulate matter removal device 22 and the nitrogen oxide purification device 23. You can reduce the possibility of being affected. Further, an air exhaust port 15b is provided on the left side of the engine room 15, and the cooling air from the air blower fan 17 is directed to the particulate matter removing device 22 and the nitrogen oxides, as shown by arrows in FIGS. 13 and 15. It is supplied to the purification device 23 and also to the electrical components 70 located downstream of the air cleaner 19. Thereby, it is possible to suppress the heat generation of the particulate matter removal device 22 and the nitrogen oxide purification device 23, and also to suppress the influence of heat generation on the electrical components 70. In addition, since the first space S1 is further away from the driver's seat 11 than the second space S2, the possibility that the operator's working environment will be degraded due to heat generated by the particulate matter removal device 22 and the nitrogen oxide purification device 23 is reduced. can.

The partition member 80 of this embodiment is a metal plate, and is attached to the horizontal frame 51 of the column frame 50. A NOX sensor 71, an engine ECU 72, and a flasher unit 74 are attached to the front surface of the partition member 80 in this order from the left side. In this way, the partition member 80 can also be used as a mounting member for the electrical component 70, thereby simplifying the structure. Note that the fuse box 75 is disposed below the flasher unit 74 and is supported by the horizontal frame 51 of the column frame 50 via a dedicated mounting member 76.

As shown in FIG. 15, when viewed from the front, the NOX sensor 71 and engine ECU 72 are arranged to overlap with the first opening 34, and the flasher unit 74 and fuse box 75 are arranged to overlap with the second opening 35. has been done. According to such an arrangement, although the electrical component 70 is disposed in the engine room 15, maintenance of the electrical component 70 is performed from the driver section 9 side through the first opening 34 and the second opening 35. be able to. In particular, the flasher unit 74 and fuse box 75, which are maintained more frequently than the NOX sensor 71 and engine ECU 72, overlap the second opening 35 formed on the left side of the driver's seat 11, so the driver's seat 11 must be removed. Maintenance can be easily performed by simply removing the second opening/closing cover 62. Further, since the fuse box 75 of this embodiment is arranged to be inclined parallel to the inclined surface part 33 of the wall part 30, visibility through the second opening part 35 and maintainability can be improved. I can do it.

According to the present embodiment configured as described above, there is an engine room 15 that accommodates the engine 14, a blower fan 17 that supplies cooling air into the engine room 15, and a blower fan 17 that is housed in the engine room 15 and is supplied to the engine 14. The combine 1 is equipped with an air cleaner 19 that purifies the air, the air cleaner 19 is arranged above the blower fan 17 and in the blowing path of the blowing fan 19, and the air cleaner 19 is disposed downstream of the air cleaner 19 in the blowing path. , since the electrical components 70 are arranged, not only can the electrical components 70 be arranged using the space in the engine room 15, but also the electrical components 70 can be cooled by using the cooling air to the air cleaner 19. 70 can be reduced.

The combine 1 also includes a driver's seat 11, a wall 30 that partitions the driver's seat 11 and the engine room 15, and a wall 30 that is formed on the wall 30 and that enables maintenance of the electrical components 70 from the driver's seat 11 side. The second opening 35 and the second opening/closing cover 61 cover the second opening 35 in an openable/closable manner. Although the electrical component 70 is disposed within the engine room 15, maintenance of the electrical component 70 can be easily performed.

The combine 1 also includes a particulate matter removal device 22 and a nitrogen oxide purification device 23, which are housed in an engine room 15 and purify exhaust gas from the engine 14, and are arranged above the engine 14 along the direction of air blowing by a blower fan 17. and a partition member 80 that partitions the space above the engine 14 into one first space S1 and the other second space S2, and the particulate matter removal device 22 and the nitrogen oxide purification device 23 Since the electrical component 70 is disposed in the other second space S2 and is attached to the partition member 80, the electrical component 70 absorbs the heat generated by the particulate matter removal device 22 and the nitrogen oxide purification device 23. Not only can the partition member 80 be used to guide the cooling air from the air cleaner 19 to the electrical components 70, but also the structure can be improved by eliminating the need for a dedicated mounting member for the electrical components 70. can be simplified.

Note that the present invention is not limited to the embodiments described above, and various modifications and changes can be made within the scope of the gist of the present invention as set forth in the claims. For example, in the embodiment described above, the particulate matter removal device 22 and the nitrogen oxide purification device 23 are shown as the exhaust gas purification device, but either one or other exhaust gas purification device may be used.

1 Combine harvester 9 Operating section 11 Driver seat 14 Engine 15 Engine room 15b Air exhaust port 17 Ventilation fan 19 Air cleaner 22 Particulate matter removal device 23 Nitrogen oxide purification device 30 Wall portion 34 First opening 35 Second opening 61 First opening/closing Cover 62 Second opening/closing cover 70 Electrical components 71 NOX sensor 72 Engine ECU
73 Relay 74 Flasher unit 75 Fuse box 80 Partition member S1 First space S2 Second space

Claims (2)

an engine room that houses the engine;
a blower fan that supplies cooling air into the engine room;
A combine, comprising: an air cleaner housed in the engine room and purifying air supplied to the engine,
The air cleaner is disposed above the blower fan and in the airflow path of the blower fan,
Electrical components are arranged downstream of the air cleaner in the ventilation path , and
an exhaust gas purification device that is housed in the engine room and purifies exhaust gas from the engine;
a partition member disposed above the engine along the blowing direction of the blower fan and partitioning the space above the engine into one space and the other space;
The exhaust gas purification device is arranged in the one space,
The electrical component is arranged in the other space and attached to the partition member.
A combine harvester characterized by: driver seat and
a wall partitioning between the driver's seat and the engine room;
an opening formed in the wall portion that allows maintenance of the electrical components from the driver's seat side;
an opening/closing cover that covers the opening in an openable/closable manner;
The combine harvester according to claim 1, wherein the opening and the opening/closing cover are arranged on a side of the driver's seat.

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