JP7449145B2 - combine - Google Patents

Description

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

Patent Document 1 discloses a combine harvester in which an engine room and an air cleaner room are separated. In this case, if a cleaning port is formed in the cover that covers the engine room or air cleaner room, and the engine is maintained through the cleaning port, the space for providing the cleaning port is limited, so the maintainability of the engine is reduced. The problem is that it is difficult to secure.

On the other hand, Patent Document 2 discloses a combine harvester that eliminates the partition between the engine room and the air cleaner room. This has the advantage that the cleaning port has a high degree of freedom in design, making it easier to access the engine.

JP2017-216945A Japanese Patent Application Publication No. 2018-174822

However, in the combine harvester described in Patent Document 2, when the electrical components are arranged using the space in the engine room, there is a possibility that dust may easily adhere to the electrical components.

The present invention was created with the aim of solving these problems in view of the above- mentioned circumstances . A combine harvester in which an engine control unit and electrical components are disposed in an engine room , wherein a partition space is formed in the engine room and partitioned by the engine control unit and a mounting bracket for the engine control unit as a wall, and the partition arranging the electrical components in the space, further comprising a wall partitioning between the driver's seat and the engine compartment, and providing an openable and closable opening in a portion of the wall facing to the side of the driver's seat; It is characterized in that the electrical components arranged in the partitioned space can be accessed through the opening .
The invention according to claim 2 is the combine harvester according to claim 1, comprising: a driving control section on which a worker rides; a support frame disposed at the rear of the engine room and supporting a rear part of the driving control section; The engine control unit and the electrical component are further provided with the following, and the engine control unit and the electrical component are supported by the support frame via the mounting bracket.
The invention according to claim 3 is the combine harvester according to claim 1 or 2 , wherein a second opening that can be opened and closed and has a larger opening area than the opening is provided in a portion of the wall that faces behind the driver's seat. and the engine control unit is accessible through the second opening.
The invention of claim 4 is the combine harvester according to any one of claims 1 to 3, further comprising: a blower fan that supplies cooling air into the engine room; and a blower fan that is housed in the engine room and supplies cooling air to the engine. The engine control unit further includes an air cleaner that purifies the air that is transmitted, the air cleaner being disposed in a blowing path of the blowing fan, and the engine control unit being disposed downstream of the air cleaner in the blowing path. .

According to the invention of claim 1, a partitioned space is formed in the engine room using the engine control unit and the mounting bracket of the engine control unit as a wall, and electrical components are arranged in the partitioned space. Even though electrical components are placed inside, dust adhesion to the electrical components can be suppressed. Further, since the partition space in the engine room is formed using the engine control unit and its mounting bracket, an increase in parts cost can also be suppressed.
Furthermore, an opening that can be opened and closed is provided in the part of the wall that partitions the driver's seat and the engine compartment facing to the side of the driver's seat, and electrical components placed in the partitioned space can be accessed through the opening. Therefore, even if electrical components such as fuses that are frequently replaced are arranged in the partitioned space, the electrical components can be easily accessed without removing the driver's seat.
According to the invention of claim 2, since the engine control unit and the electrical components are supported by the support frame via the mounting bracket, the engine control unit and the electrical components can be strongly supported while suppressing an increase in the number of parts. , the engine control unit and electrical components can be arranged compactly in the engine room.
According to the third aspect of the invention, a second opening that can be opened and closed and has a larger opening area than the opening is provided in a portion of the wall that faces behind the driver's seat, and the engine control unit is installed through the second opening. Since the engine control unit can be accessed through the second opening having a large opening area, work such as replacing the engine control unit can be performed.
According to the fourth aspect of the present invention, since the cooling air from the blower fan passes through the air cleaner and hits the engine control unit, it is possible to suppress the influence of heat generated from the engine on the engine control unit.

1 is an overall perspective view of a combine harvester according to an embodiment of the present invention. It is a perspective view showing the frame composition of a combine. FIG. 3 is a perspective view showing a state in which the door frame is removed from FIG. 2; FIG. 4 is a perspective view showing a state in which the driver frame is removed from FIG. 3; 5 is a front view showing the configuration of FIG. 4. FIG. 5 is a side view showing the configuration of FIG. 4. FIG. 5 is a rear view showing the configuration of FIG. 4. FIG. 5 is a plan view showing the configuration of FIG. 4. FIG. FIG. 3 is a perspective view of a driving control section. 10 is a perspective view showing a state in which covers are removed from FIG. 9. FIG. FIG. 2 is a perspective view of main parts showing how the engine control unit and electrical components are attached. FIG. 3 is a front view of main parts showing the flow of air by a blower fan.

Embodiments of the present invention will be described below based on the drawings. In FIG. 1, 1 is a combine harvester, and the combine 1 includes a traveling machine body 4 having a crawler-type running section 3 below a body frame 2, and a pre-processing machine connected to the front part of the traveling machine body 4 so as to be able to rise and fall. A threshing section 5 is arranged on the left side of the traveling machine body 4 and threshes and sorts grains from the stem culm harvested by the pre-processing section 5. A grain tank 7 that stores the grains that have been removed, a discharge auger 8 that discharges the grains in the grain tank 7 to the outside of the machine, and an operation system that is arranged on the right side of the traveling machine body 4 and in front of the grain tank 7. A control section 9 is provided.

As shown in FIGS. 2 to 8, a plurality of frame members are provided on the fuselage frame 2 to constitute a driving control section 9 and an engine room 10. As shown in FIGS. Specifically, a strut frame 12 is provided upright behind the mounting position of the engine 11 on the fuselage frame 2, a step frame 13 is provided in front of the mounting position of the engine 11 on the fuselage frame 2, and the rear side is connected to the strut frame 12. The driving part frame 14 is connected to a step frame 13 on the front side, a connecting frame 15 connects the support frame 12 and the step frame 13, and a door frame 16 covers the outside of the engine 11.

In addition, as shown in FIG. 7 etc., the support frame 12 includes left and right vertical frames 17L and 17R extending upward from the fuselage frame 2, and an upper horizontal frame that connects the upper ends of the left and right vertical frames 17L and 17R. 18U, and an intermediate horizontal frame 18M that connects the intermediate portions of the left and right vertical frames 17L and 17R.

As shown in FIG. 9, the engine room 10 is covered at the front and above by a front cover 19 (wall) provided on the driver frame 14, and at the rear by a rear cover 20 provided on the support frame 12. The right side is covered by a side cover 21 provided on the door frame 16 so as to be openable and closable, and the left side is open.

As shown in FIG. 12, etc., a radiator 22 and a blower fan 23 are arranged near the right side of the engine 11, and as the blower fan 23 is driven, the inside of the engine room 10 is passed from the right side of the fuselage through a dustproof net 24. Engine cooling air is introduced. The engine cooling air introduced into the engine room 10 passes through the radiator 22, passes in front of, behind, and above the engine 11, and is discharged from the left side of the engine room 10.

The engine 11 is connected to an intake path for introducing intake air from outside the engine, and an exhaust path for discharging exhaust gas to the outside of the engine. A precleaner (not shown) and an air cleaner 24 are provided in the intake path, and outside air purified by the precleaner is sucked into the air cleaner 24, and the air purified by the air cleaner 24 is sucked into the engine 11. Ru. The air cleaner 24 is disposed in a space above the engine 11 and is supported by the support frame 12 and the connection frame 15. Note that the explanation of the exhaust route will be omitted.

As shown in FIGS. 1, 9, 10, etc., the driving control section 9 is separated from the engine room 10 by a front cover 19, and a driver's seat 25 is removably disposed in front of the front cover 19. ing.

As shown in FIGS. 9 and 10, the front cover 19 has two openings 26 and 27 for maintenance that communicate the operation control section 9 and the engine room 10, and each opening 26 and 27 can be opened and closed. Opening/closing covers 28 and 29 are provided. The first opening 26 has a smaller opening area than the second opening 27 and is formed on the left side of the driver's seat 25. Further, the second opening 27 is formed to open over a wide range from below the driver's seat 25 to the rear of the driver's seat 25. Therefore, when opening and closing the second opening 27, it is necessary to attach and detach the driver's seat 25, but when opening and closing the first opening 26, there is no need to attach and detach the driver's seat 25.

Next, the characteristic configuration of the present invention will be explained with reference to FIGS. 2 to 12.

The engine room 10 includes, as electrical and electronic components, an engine control unit 30 (engine ECU) that controls the engine 11, a flasher unit 31 that blinks the turn signal, and electrical equipment such as fuses 32a, 32b, relays 32c, and 32d. Components 32 are arranged. The flasher unit 31 is an electrical component that does not affect the reaping work even if it breaks down, and the electrical components 32, such as fuses 32a, 32b, relays 32c, 32d, affect the reaping work if they melt or break down, and the engine control unit 30 and This is an electrical component that is replaced more frequently than the flasher unit 31.

As shown in FIGS. 10 to 12, a partition space S is formed in the engine room 10, and is partitioned by an engine control unit 30 and mounting brackets 33 and 34 for the engine control unit 30 using walls W. Electrical components 32 are arranged at S.

The mounting brackets 33 and 34 include an upper mounting bracket 33 and a lower mounting bracket 34 that project forward from the upper end of the column frame 12 (vertical frame 17L). The upper mounting bracket 33 and the lower mounting bracket 34 are provided with an interval in the vertical direction, and by mounting the engine control unit 30 on the right side of the upper mounting bracket 33 and the lower mounting bracket 34 in a bridging manner. A wall W is formed.

As shown in FIG. 12, the wall W is located on the upstream side of the partition space S in the flow direction of the engine cooling air from the blower fan 23, and prevents the engine cooling air from hitting the electrical components 32 in the partition space S. prevent. Thereby, although the electrical component 32 is disposed within the engine room 10, it is possible to suppress the adhesion of dust to the electrical component 32. Moreover, since the partition space S in the engine room 10 is formed using the engine control unit 30 and its mounting brackets 33 and 34, an increase in parts costs can also be suppressed.

Further, the engine control unit 30 forming the wall W is exposed to engine cooling air, and an air cleaner 24 is disposed in the engine cooling air blowing path from the blower fan 23 to the engine control unit 30. Since the engine cooling air from the blower fan 23 passes through the air cleaner 24 and hits the engine control unit 30, the influence of heat generated from the engine 11 on the engine control unit 30 can be suppressed.

The upper mounting bracket 33 and the lower mounting bracket 34 are provided with electrical component mounting portions 33a and 34a extending from the left side into the partition space S. A relay 32d is attached to the upper electrical component mounting portion 33a, and a relay 32d is attached to the lower electrical component mounting portion 33a. Fuses 32a, 32b and a relay 32c are attached to the electrical component attachment portion 34a on the side. In this way,
Since the engine control unit 30 and the electrical components 32 can be supported by the support frame 12 via the mounting brackets 33 and 34, the engine control unit 30 and the electrical components 32 can be strongly supported while suppressing an increase in the number of parts. The engine control unit 30 and electrical components 32 can be arranged compactly in the engine room 10. Note that in this embodiment, the flasher unit 31 is installed on the right side of the lower mounting bracket 34 and below the engine control unit 30, but the installation position of the flasher unit 31 is inside the partition space S. Good too.

Further, as shown in FIG. 10, the electrical components 32 arranged in the partitioned space S can be accessed from the operation control unit 9 side through the first opening 26. In this way, even if electrical components 32 such as fuses 32a, 32b, relays 32c, 32d, etc. that are frequently replaced are arranged in the partitioned space S, the electrical components 32 can be easily accessed without removing the driver's seat 25. Can be done.

Further, as shown in FIG. 10, the engine control unit 30 and the flasher unit 31 are accessible from the operation control unit 9 side via the second opening 27. In this way, the engine control unit 30 and the flasher unit 31 can be replaced through the second opening 27 having a large opening area.

According to the present embodiment configured as described above, the combine 1 has the engine control unit 30 and the electrical components 32 arranged in the engine room 10 housing the engine 11, and the engine control unit 30 is installed in the engine room 10. A partitioned space S is formed using the mounting brackets 33 and 34 of the engine control unit 30 as a wall W, and the electrical components 32 are arranged in the partitioned space S, so the electrical components 32 are arranged in the engine room 10. However, it is possible to suppress the adhesion of dust to the electrical components 32. Moreover, since the partition space S in the engine room 10 is formed using the engine control unit 30 and its mounting brackets 33 and 34, an increase in parts costs can also be suppressed.

Further, the combine 1 further includes a driving control section 9 on which a worker rides, a support frame 12 that is arranged at the rear of the engine room 10 and supporting the rear part of the driving control section 9, and mounting brackets 33 and 34. Since the engine control unit 30 and the electrical components 32 are supported by the support frame 12, the engine control unit 30 and the electrical components 32 can be strongly supported while suppressing an increase in the number of parts. The control unit 30 and the electrical components 32 can be arranged compactly.

The combine 1 further includes a driver's seat 25 and a front cover 19 that partitions between the driver's seat 25 and the engine room 10, and a portion of the front cover 19 facing the side of the driver's seat 25 can be opened and closed. Since the first opening 26 is provided and the electrical components 32 disposed in the partitioned space S can be accessed through the first opening 26, it is possible to access the electrical components 32 arranged in the partitioned space S. Even if the electrical components 32 are arranged, the electrical components 32 can be easily accessed without removing the driver's seat 25.

Further, a second opening 27 that can be opened and closed and has a larger opening area than the first opening 26 is provided in a portion of the front cover 19 facing behind the driver's seat 25, and the engine can be controlled through the second opening 27. Since the unit 30 is made accessible, work such as replacing the engine control unit 30 can be performed through the second opening 27 having a large opening area.

The combine 1 further includes a blower fan 23 that supplies cooling air into the engine room 10 and an air cleaner 24 that is housed in the engine room 10 and purifies the air supplied to the engine 11. Since the engine control unit 30 is disposed in the ventilation path of the ventilation fan 23 and downstream of the air cleaner 24 in the ventilation path, the engine cooling air from the ventilation fan 23 passes through the air cleaner 24 and hits the engine control unit 30. As a result, the influence of heat generated from the engine 11 on the engine control unit 30 can be suppressed.

1 Combine harvester 9 Operation control unit 10 Engine room 11 Engine 12 Support frame 19 Front cover 23 Blower fan 24 Air cleaner 25 Driver seat 26 First opening 27 Second opening 30 Engine control unit 31 Flasher unit 32 Electrical components 32a, 32b Fuse 32c, 32d Relay 33, 34 Mounting bracket

Claims (4)

driver seat and
Equipped with an engine room that houses the engine,
A combine harvester in which an engine control unit and electrical components are arranged in the engine room ,
A partitioned space is formed in the engine room using the engine control unit and the mounting bracket of the engine control unit as a wall, and the electrical component is disposed in the partitioned space , and
further comprising a wall partitioning between the driver's seat and the engine compartment,
A combine harvester characterized in that an opening that can be opened and closed is provided in a portion of the wall portion facing to the side of the driver's seat, and the electrical components arranged in the partitioned space can be accessed through the opening. . A driving control section where a worker rides,
further comprising a support frame disposed at the rear of the engine room and supporting a rear part of the operation control section,
The combine harvester according to claim 1, wherein the engine control unit and the electrical component are supported by the support frame via the mounting bracket. A second opening that can be opened and closed and has a larger opening area than the opening is provided in a portion of the wall facing behind the driver's seat, and the engine control unit can be accessed through the second opening. The combine harvester according to claim 1 or 2, characterized in that: a blower fan that supplies cooling air into the engine room;
further comprising an air cleaner housed in the engine room and purifying air supplied to the engine,
The air cleaner is arranged in a ventilation path of the ventilation fan,
The combine harvester according to any one of claims 1 to 3, wherein the engine control unit is arranged downstream of the air cleaner in the ventilation path.

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