JP2022104754A - Work vehicle - Google Patents

Abstract

To provide a work vehicle in which the arrangement of a member in the periphery of a battery is devised.SOLUTION: In a combine harvester 1, for example, a constitution that can deploy a reaping device to the left side is adopted, since the front side of a battery 22 arranged on the right front end of a main frame 2 is opened with the deployment of the reaping device, the battery 22 can be accessed from the front side. An ECU 23 controlling the operation of an engine 6 is arranged on the right side with respect to the battery 22 by avoiding the front side of the battery 22.SELECTED DRAWING: Figure 3

Description

The present invention relates to a work vehicle such as a combine.

For example, in a combine, a reaping device is arranged at the front portion, and a main frame is provided behind the reaping device. A cabin containing operating members such as a driver's seat, operating levers, and operating pedals is supported on the front end of the main frame. The combine driver (worker performing the harvesting work) can board the cabin and perform various operations such as running and steering of the combine.

Below the cabin, a battery for supplying power to the electrical components mounted on the combine is arranged. The combine employs a configuration in which the cabin can be deployed (moved) to the right and / or the reaper can be deployed to the left, and the cabin and / or reaper can be deployed to allow frontal access to the battery. Become.

Japanese Unexamined Patent Publication No. 2020-137467

Since the direction of access to the battery is restricted, it is necessary to devise the arrangement of the members around the battery.

An object of the present invention is to provide a work vehicle in which the arrangement of members around the battery is elaborate.

In order to achieve the above object, the work vehicle according to one aspect of the present invention is arranged and operated on the moving portion, the battery accessible from one side in the front-rear direction, and the outside in the left-right direction with respect to the battery. Includes a control unit that controls the operation of the unit.

According to this configuration, the control unit that controls the operation of the operating unit is arranged on the outside in the left-right direction with respect to the battery, while the battery can be accessed from one side in the front-rear direction. With such an arrangement, it is possible to prevent the control unit from interfering with access to the battery and improve the workability of checking and replacing the battery.

The work vehicle according to another aspect of the present invention includes a moving unit, a battery arranged so as to be accessible from one side, and a control unit arranged avoiding one side with respect to the battery to control the operation of the operating unit. including.

According to this configuration, the control unit that controls the operation of the operating unit is arranged so as to avoid the one side with respect to the battery, where the battery can be accessed from one side. With such an arrangement, it is possible to prevent the control unit from interfering with access to the battery and improve the workability of checking and replacing the battery.

It is preferable that the electric wire is connected to the control unit so as to avoid one side of the control unit. As a result, it is possible to prevent the electric wire connected to the control unit from obstructing access to the battery.

The work vehicle further includes a battery base that supports the battery, and the control unit may be attached to the battery base.

In this configuration, the control unit can be installed in a stable state by utilizing the battery stand that supports the battery.

The operating unit is located on one side and the opposite side of the battery and control unit, and the work vehicle is located between the battery and control unit and the operating unit, and separates the battery and control unit from the operating unit. It may be configured to further include a wall-shaped separator.

In this configuration, by providing the separator, it is possible to prevent the waste heat from the operating portion from sneaking into the battery and the control unit side. Therefore, the battery and the control unit can be protected from heat damage (heat damage) from the operating unit.

The moving part may be an engine, and in this case, the heat generated by the moving part is large, so that the separator functions particularly effectively.

According to the present invention, it is possible to improve the workability of checking and replacing the battery by elaborating the arrangement of the members around the battery.

It is a right side view of the combine which concerns on one Embodiment of this invention. It is a plan view of a combine. It is a perspective view which shows the structure on the front end part of a main frame. It is a left side view which shows the battery and the ECU.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Overall composition of combine>
FIG. 1 is a right side view of the combine 1 according to the embodiment of the present invention. FIG. 2 is a plan view of the combine 1.

Combine 1 is an example of a harvester that cuts culms and threshs from culms while traveling in a field.

As shown in FIG. 1, the combine 1 includes a main frame 2 which is a structure in which a plurality of steel materials are combined. Further, the combine 1 employs a pair of left and right crawlers 3 as a traveling device having an ability to run through rough terrain such as a field. The main frame 2 is supported by a pair of left and right crawlers 3.

The crawler 3 is provided with a drive sprocket 4 as a drive wheel. An axle 5 is connected to the drive sprocket 4 so as not to rotate relative to each other. The power of the engine 6 (see FIG. 5) is transmitted to the axle 5 via the power transmission mechanism 7 (see FIG. 3). The engine 6 is a diesel engine with an exhaust turbine type supercharger. The power transmission mechanism 7 includes, for example, an HST (Hydro Static Transmission) and a gear mechanism. The engine 6 and the power transmission mechanism 7 are supported by the main frame 2. The power transmission mechanism 7 is arranged on the center portion in the left-right direction (vehicle width direction) at the front end portion of the main frame 2, and the engine 6 approaches the right side of the power transmission mechanism 7 on the rear side of the power transmission mechanism 7. It is placed out.

A cutting device 11 is provided in front of the main frame 2 and at the front of the combine 1. The reaping device 11 reaps the culm planted in the field as the combine 1 advances.

A threshing device 12, a cabin 13, and a grain tank 14 are supported on the main frame 2.

The threshing device 12 is arranged on the left portion of the main frame 2 as shown in FIG. The threshing device 12 transports the stock root side of the culm cut by the reaping device 11 to the rear by a threshing feed chain, and supplies the tip side of the culm to the handling chamber for threshing.

The cabin 13 is arranged closer to the right side on the front end portion of the main frame 2. The cabin 13 provides a space for the driver to board, and in the space, for example, an operation member such as a driver's seat on which the driver sits, an operation lever, and an operation pedal are arranged. As shown in FIG. 1, the bottom plate portion 15 that provides the floor of the cabin 13 is on the right side of the power transmission mechanism 7 and is separated upward from the right front end portion of the main frame 2. The portion of the cabin 13 on the left side of the bottom plate portion 15 protrudes above the power transmission mechanism 7, and the rear portion protrudes above the engine 6.

An entrance / exit 16 is formed on the right side surface of the cabin 13, and a door 17 for opening / closing the entrance / exit 16 is provided. The driver of the combine 1 (the worker who performs the harvesting work) can open the door 17 and get on and off the cabin 13 from the entrance 16 and the cabin 13.

The Glen tank 14 is arranged behind the cabin 13 at a distance from the cabin 13. The grain tank 14 provides a space in which paddy (grains) can be stored. The paddy removed from the culm by the threshing device 12 is transported to the grain tank 14 and stored in the grain tank 14. An unloader 18 is connected to the grain tank 14, and the paddy stored in the grain tank 14 can be carried out by the unloader 18 and discharged to the outside of the machine.

<Battery and ECU placement>
FIG. 3 is a perspective view showing a configuration on the front end portion of the main frame 2.

The right front end of the main frame 2 is formed as a battery base 21. Since the bottom plate portion 15 of the cabin 13 is separated upward from the battery base 21 which is the right front end portion of the main frame 2, a space is created between the battery base 21 and the bottom plate portion 15. In this space, a battery 22 for storing electric power supplied to electrical components mounted on the combine 1 and an ECU (Electronic Control Unit) 23 for controlling the engine 6 are arranged.

The battery 22 is placed on the battery base 21 and fixed to the battery base 21 by the battery fixture 24.

FIG. 4 is a left side view showing the battery 22 and the ECU 23.

The ECU 23 is arranged on the right side and the rear side of the battery 22 and partially overlaps with the battery 22 in the front-rear direction (the rear end portion of the battery 22 and the tip portion of the ECU 23 overlap in the left-right direction). .. A stay 25 is attached to the ECU 23. On the other hand, at the front end portion of the battery base 21, a substantially U-shaped gate portion 26 opened downward when viewed from the front side is fixed to the battery base 21. An arm 27 extending to the rear side is fixed to the right side portion of the gate portion 26 by welding. The stay 25 is fixed to the connecting member 28 with bolts 31, and the connecting member 28 is fixed to the arm 27 with bolts 32, so that the ECU 23 can use the battery via the stay 25, the connecting member 28, the arm 27, and the gate portion 26. It is supported by the stand 21.

Two harnesses 33 and 34 are connected to the ECU 23. The harnesses 33 and 34 are arranged so as to extend from the rear of the ECU 23 toward the ECU 23. Connectors 35 and 36 are attached to the tips of the harnesses 33 and 34, respectively, and the connectors 35 and 36 are coupled to the ECU 23 from below.

On the right side of the ECU 23, a step 37 used for raising and lowering the cabin 13 is provided. A protective plate 38 formed by bending a thin metal plate is provided between the ECU 23 and the step 37. As a result, it is possible to prevent the toes of the foot (shoe) stepping on the step 37 from hitting the ECU 23.

Behind the ECU 23, as shown in FIG. 3, an oil filter 41 for removing foreign matter from the transmission oil used in the power transmission mechanism 7 and a transmission oil cooler fin 42 for cooling the transmission oil are provided. They are arranged side by side in the front and back. Further, above them, an HST oil cooler fin 43 for cooling the HST oil used in the HST is arranged, and on the right side of the HST oil cooler fin 43, an intercooler for cooling the intake air to the engine 6 is arranged. The fins 44 are arranged.

A wall-shaped first separator 45 extending in the left-right direction is provided between the engine 6 and the battery 22 and the ECU 23. Further, between the first separator 45 and the battery 22 and the ECU 23, a wall-shaped second separator 46 is provided that extends so as to be located on the rear side toward the right side. Further, a wall-shaped third separator 47 extending in the front-rear direction is provided between the engine 6 and the oil filter 41, the transmission oil cooler fin 42, the HST oil cooler fin 43, and the intercooler fin 44. By providing the third separator 47, it is possible to suppress the exhaust heat from the engine 6 from reaching the oil filter 41, the transmission oil cooler fin 42, the HST oil cooler fin 43 and the intercooler fin 44, and the cooling performance thereof is improved. Can be planned.

<Action effect>
The combine 1 employs a configuration in which the reaping device 11 can be deployed to the left side, and the deployment of the reaping device 11 opens the front side of the battery 22 arranged at the right front end of the main frame 2, so that the battery The 22 can be accessed from the front side.

The ECU 23 that controls the operation of the engine 6 is arranged on the right side with respect to the battery 22 so as to avoid the front side of the battery 22. With such an arrangement, it is possible to prevent the ECU 23 from hindering access to the battery 22 and improve the workability of inspection and replacement of the battery 22.

An oil filter 41, a transmission oil cooler fin 42, an HST oil cooler fin 43, and an intercooler fin 44 are arranged behind the ECU 23. As a result, it is possible to prevent the oil filter 41, the transmission oil cooler fin 42, the HST oil cooler fin 43 and the intercooler fin 44 from obstructing access to the battery 22, and improve the workability of inspection and replacement of the battery 22. Can be planned.

Further, the harnesses 33 and 34 connected to the ECU 23 are connected to the ECU 23 from the lower side while avoiding the front side of the ECU 23. This prevents the harnesses 33 and 34 from wrapping around to the front side of the battery 22 and prevents the harnesses 33 and 34 from interfering with access to the battery 22.

The ECU 23 is attached to the battery base 21 via the stay 25, the connecting member 28, the arm 27, and the gate portion 26. As a result, the ECU 23 can be installed in a stable state by using the battery base 21 that supports the battery 22.

The engine 6 is arranged at a position on the left side with respect to the battery 22 and the ECU 23, and a wall-shaped first separator 45 and a second separator 46 are provided between the engine 6 and the battery 22 and the ECU 23. This makes it possible to prevent the waste heat from the engine 6 from sneaking into the battery 22 and the ECU 23 side. Therefore, the battery 22 and the ECU 23 can be protected from damage (heat damage) due to heat from the engine 6.

<Modification example>
Although the embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.

For example, in the above-described embodiment, the combine 1 provided with the harvesting device 11 and the threshing device 12 as working devices is taken as an example of the working vehicle, but the present invention harvests vegetables such as carrots, radishes, edible beans, and cabbage. A harvester equipped with a harvesting and transporting device as a working device, a rice planting machine equipped with a seedling planting device as a working device, a direct sowing machine equipped with a sowing device as a working device, a tractor equipped with a plow as a working device, and a bucket as a working device. It can be applied to various work vehicles such as a construction work vehicle to be equipped.

In addition, various design changes can be made to the above-mentioned configuration within the scope of the matters described in the claims.

1: Combine (work vehicle)
6: Engine (moving part)
21: Battery stand 22: Battery 23: ECU (control unit)
33, 34: Harness (electric wire)
45: First separator (separator)
46: Second separator (separator)

Claims (6)

The moving part and
Batteries arranged so that they can be accessed from one side in the front-rear direction,
A work vehicle including a control unit located outside in the left-right direction with respect to the battery and controlling the operation of the operating unit. The moving part and
Batteries arranged so that they can be accessed from one side,
A work vehicle comprising a control unit that is arranged away from the one side of the battery and controls the operation of the operating unit. The work vehicle according to claim 1 or 2, wherein an electric wire is connected to the control unit while avoiding the one side with respect to the control unit. Further including a battery base, which supports the battery,
The work vehicle according to any one of claims 1 to 3, wherein the control unit is attached to the battery stand. The moving unit is arranged at a position opposite to the one side with respect to the battery and the control unit.
The invention according to any one of claims 1 to 4, further comprising a wall-shaped separator arranged between the battery and the control unit and the operating unit, and separating the battery and the control unit from the operating unit. The work vehicle described. The work vehicle according to claim 1 to 5, wherein the moving unit is an engine.

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