JP6707042B2 - Passenger management machine - Google Patents

Description

The present invention relates to a passenger management machine.

2. Description of the Related Art Conventionally, a passenger management machine that performs various intermediate management work on crops is known. The riding management machine is, for example, for spraying a medicinal solution onto a crop while entering a ridge of a field and running. The passenger management machine described in Patent Document 1 below is a boom sprayer, and this boom sprayer includes a body frame that is long in the front-rear direction, and rotates front and rear wheels to the left and right of the front and rear portions below the body frame. Have possible. A center boom is provided at the front of the body frame, and foldable side booms are provided at both ends of the center boom. A driver's seat is arranged in the front part, a chemical tank is arranged in the middle part, and an engine room is arranged in the rear part on the body frame, and an engine for driving wheels is arranged in the engine room.

Here, although there is no specific description in Patent Document 1, various parts other than the engine are arranged in the engine room. Specifically, a radiator for cooling engine coolant (radiator liquid), a radiator cooling fan for cooling the radiator, an oil cooler for cooling hydraulic oil for boom drive, etc., an oil cooler are cooled. Generally, a cooling fan for an oil cooler is arranged, and in addition, an air cleaner and a battery for an engine, a power sprayer for spraying a chemical liquid, and the like are generally arranged.

JP, 2014-073096, A

Since various parts are arranged in the engine room as described above, there has recently been a demand for a reduction in the number of parts in the engine room and a reduction in size (space saving).

The present invention has been made to solve such a problem, and an object of the present invention is to provide a passenger management machine that can reduce the number of parts in an engine room, reduce costs, and downsize the engine room. And

The riding management machine (100) according to the present invention is disposed below the vehicle body frame (3) and both sides in the left-right direction orthogonal to the front-back direction of the vehicle body frame (3), and is capable of traveling in the vehicle body frame (3). (4), a driver's seat (5) and an engine room (6) arranged on the body frame (3), and an engine (for driving the traveling device (4) in the engine room (6) ( 19) in which a cooling fan (20) is provided on one side of the engine (19) in the left-right direction and an engine is provided on one side of the cooling fan (20). A radiator (21) for cooling the coolant and an oil tank (22) for hydraulic oil are arranged in parallel in this order on one side of the radiator (21).

According to such a passenger management machine (100), in the engine room (6), the cooling fan (20), the radiator (21), the oil tank ( Since 22) are arranged side by side in this order, both the engine coolant of the radiator (21) and the hydraulic fluid of the oil tank (22) can be cooled by one cooling fan (20), which is conventionally required. An oil cooler for cooling oil and a cooling fan for cooling the oil cooler are unnecessary. Therefore, the number of parts can be reduced and the cost can be reduced. In addition, the number of parts can be reduced in this way, and the engine (19), the cooling fan (20), the radiator (21), and the oil tank (22) are arranged side by side in the left-right direction, so that the engine room (6) is moved forward and backward. Can be miniaturized in any direction.

Here, if the engine air cleaner (24) and the battery (25) are arranged above the oil tank (22), the engine room can be further downsized in the front-rear direction.

Further, the traveling device (4) is driven by the HST method, and is connected to the output shaft of the engine (19) and driven to the other side of the engine (19) in the left-right direction, and at the same time, hydraulic oil is supplied. If the hydraulic tandem pump (26) for supplying the generated hydraulic pressure to the hydraulic motor (28) for rotating the drive wheel (16) of the traveling device (4) is arranged, the engine room (6) is The size can be further reduced in the front-back direction. In addition, since there is no mechanical conduction element between the engine (19) and the drive wheel (16), the degree of freedom in layout in the engine room (6) is increased, and the parts are further arranged side by side in the horizontal direction. It is possible to further reduce the size in the front-rear direction. Further, when the drive wheel (16) is a rear wheel (rear wheel drive), a hydraulic motor (28) for rotating the drive wheel (16), a hydraulic tandem pump (26), an oil tank (22), etc. Since the hydraulic elements of the above can be integrated on the rear side of the vehicle body frame (3), the hydraulic hose can be shortened.

Further, when the power sprayer (29) for spraying the chemical liquid is arranged above the hydraulic tandem pump (26), the engine room (6) can be further downsized in the front-rear direction.

As described above, according to the present invention, the number of parts in the engine room can be reduced, the cost can be reduced, and the engine room can be downsized in the front-rear direction.

It is a left side view showing a passenger management machine concerning an embodiment of the present invention, and is a left side view showing only an engine room in a room. It is a right side view showing a passenger management machine concerning an embodiment of the present invention, and is a right side view showing only the engine room inside the room. FIG. 2 is a plan view showing the passenger management machine according to the embodiment of the present invention, and is a plan view showing a state in which the inside of the engine room is exposed. It is the perspective view which looked at the riding management machine concerning the embodiment of the present invention from the back, and is a perspective view showing the state where the inside of the engine room was exposed. It is a rear view showing a passenger management machine concerning an embodiment of the present invention, and is a perspective view showing the state where the inside of an engine room was exposed.

Hereinafter, preferred embodiments of a passenger management machine according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a left side view showing a riding management machine according to an embodiment of the present invention, FIG. 2 is a right side view of the riding management machine, FIG. 3 is a plan view of the riding management machine, and FIG. 4 is a riding management machine. FIG. 5 is a perspective view of the passenger management machine seen from the rear, and FIG. 5 is a rear view showing the passenger management machine. In each drawing, the inside of the engine room is visible. In this embodiment, the riding management machine will be described as a self-propelled boom sprayer.

As shown in FIGS. 1 to 5, the self-propelled boom sprayer 100 includes a vehicle 1 and a boom nozzle device 2 for spraying a chemical solution from the vehicle 1. In the following description, “front”, “rear”, “left”, and “right” are directions with reference to the self-propelled boom sprayer 100.

The vehicle 1 includes a substantially rectangular body frame 3 that is long in the front-rear direction. A traveling device 4 capable of traveling the vehicle body frame 3 is provided below both sides of the vehicle body frame 3 in the left-right direction orthogonal to the front-rear direction. Further, a driver's seat 5 is arranged in the front part on the body frame 3, an engine room 6 (see FIGS. 1 and 2) is arranged in the rear part, and a chemical liquid is placed between the driver's seat 5 and the engine room 6. A chemical liquid tank 7 for storing is stored.

A four-bar linkage device 8 is installed at the front end of the vehicle body frame 3 so as to extend forward. The boom nozzle device 2 is supported by the vehicle body frame 3 via the four-bar linkage device 8. By operating the four-bar linkage device 8 by the expansion and contraction operation of the hydraulic cylinder 9, the center boom 10 of the boom nozzle device 2 fixed to the front link of the four-bar linkage device 8 is moved up and down. .. As a result, the vertical position of the boom nozzle device 2 is adjusted.

The center boom 10 of the boom nozzle device 2 extends in the left-right direction of the vehicle body frame 3. Side booms 11 and 11 are connected to the left and right ends of the center boom 10, respectively. The side booms 11, 11 are rotatable with respect to the center boom 10 about a rotation center shaft 30 (see FIG. 3) located at both ends of the center boom 10. A nozzle pipe 12 is attached to each of the center boom 10 and each side boom 11, and each nozzle pipe 12 is provided with a plurality of nozzles 13 for spraying a chemical solution along the longitudinal direction. Each side boom 11 is driven by a hydraulic cylinder 14 (see FIG. 3 ), is folded as shown when the chemical liquid is not sprayed, and is stored in a lateral position with respect to the vehicle 1 in an obliquely rearward and upward state. When spraying the chemical liquid, the side booms 11 and 11 are spread out in a straight line with respect to the center boom 10.

The traveling device 4 includes a traveling wheel and a crawler 15. The traveling wheels are sprocket wheels (driving wheels: driving wheels) 16 arranged at the rear of the body frame 3 below the engine room 6 and on both sides in the left-right direction, and at the front of the body frame 3 below the driver seat 5 and in the left-right direction. It has idler wheels (idle wheels: guide wheels) 17 arranged on both sides, and a plurality of road wheels (traveling wheels) 18 on the ground side. These wheels 16-18 are rotatably supported on the vehicle body frame 3 side, and the crawlers 15 are wound around the wheels 16-18. The traveling device 4 is driven by a hydrostatic transmission (hereinafter referred to as HST) (details will be described later).

In the engine room 6, as shown in FIGS. 3 to 5, an engine 19 is arranged substantially in the center. Hereinafter, each component of the engine room 6 will be described. A radiator cooling fan 20 is arranged on one side of the engine 19 in the left-right direction, that is, on the left side, a radiator 21 is arranged on the left side of the radiator cooling fan 20, and on the left side of the radiator 21. Is provided with an oil tank 22 for hydraulic oil. The radiator 21 and the radiator cooling fan 20 are covered with a radiator cover 23.

An air cleaner 24 for the engine and a battery 25 for starting the engine are arranged above the oil tank 22.

A hydraulic tandem pump 26 is arranged on the other side of the engine 19 in the left-right direction, that is, on the right side. The hydraulic tandem pump 26 is connected to an output shaft extending leftward in the engine 19 via a coupling 27 (see FIGS. 4 and 5). The hydraulic tandem pump 26 is driven by the engine 19 and supplies the hydraulic pressure generated by using hydraulic fluid to a hydraulic motor 28 (described in detail later).

Further, above the hydraulic tandem pump 26, a power sprayer 29 for spraying a chemical liquid driven by the engine 19 is arranged (see FIGS. 2 and 4).

The hydraulic motor 28 is arranged inside the sprocket wheel 16 and is supported on the vehicle body frame 3 side. The hydraulic motor 28 converts the hydraulic pressure from the hydraulic tandem pump 26 into a rotational force to rotate the sprocket wheel 16. The hydraulic motor 28 and the hydraulic tandem pump 26 constitute an HST, and the HST enables traveling by the traveling device 4.

The hydraulic oil used for the hydraulic tandem pump 26 and the hydraulic motor 28 circulates between the oil tank 22 and the hydraulic hose.

In such a self-propelled boom sprayer 100, the hydraulic tandem pump 26 is driven by the engine 19 and the hydraulic pressure generated by using the hydraulic fluid is converted into the rotational force by the hydraulic motor 28, so that the sprocket wheels on both the left and right sides are converted. 16 rotates, and the traveling device 4 can travel. Further, when the hydraulic cylinders 9 and 14 of the boom nozzle device 2 are extended, the side booms 11 and 11 are expanded so as to be aligned with the center boom 10. In this state, the power sprayer 29 is driven, the chemical liquid in the chemical liquid tank 7 is supplied to the nozzle pipe 12, and the chemical liquid is sprayed from the nozzle 13.

According to the self-propelled boom sprayer 100 of this embodiment, the cooling fan (cooling fan for radiator) 20, the radiator 21, and the oil tank 22 are arranged side by side in this order on the left side of the engine 19 in the engine room 6. Therefore, both the engine coolant of the radiator 21 and the hydraulic oil of the oil tank 22 can be cooled by one cooling fan 20, and the oil cooler for cooling the hydraulic oil and the oil cooler for cooling the oil cooler, which have been conventionally required, can be cooled. No cooling fan is required. Therefore, the number of parts can be reduced and the cost can be reduced. In addition, the number of parts can be reduced as described above, and the engine 19, the cooling fan 20, the radiator 21, and the oil tank 22 are arranged side by side in the left-right direction, so that the engine room 6 can be downsized in the front-rear direction.

Further, since the engine air cleaner 24 and the battery 25 are arranged above the oil tank 22, the engine room 6 can be further downsized in the front-rear direction.

Further, the traveling device 4 is driven by the HST system, and is driven on the right side of the engine 19 by being connected to the output shaft of the engine 19 and supplies the hydraulic pressure generated by using the hydraulic fluid to the hydraulic motor 28. Since the hydraulic tandem pump 26 is arranged, the engine room 6 can be further downsized in the front-rear direction. In addition, since there is no mechanical conduction element between the engine 19 and the sprocket wheel 16, the degree of freedom in layout in the engine room 6 is increased, and each component can be further arranged side by side in the left-right direction, and further in the front-back direction. It can promote miniaturization. Further, the sprocket wheel 16 which is a drive wheel is used as a rear wheel, and hydraulic elements such as a hydraulic motor 28, a hydraulic tandem pump 26 and an oil tank 22 for rotating the sprocket wheel 16 are integrated on the rear side of the vehicle body frame 3. Therefore, the hydraulic hose can be shortened.

Further, since the power sprayer 29 for spraying the chemical liquid is arranged above the hydraulic tandem pump 26, the engine room 6 can be further downsized in the front-rear direction.

Further, since the engine room 6 can be downsized in this way, the visibility of the rear portion of the self-propelled boom sprayer 100 can be improved.

Although the present invention has been specifically described based on its embodiment, the present invention is not limited to the above embodiment. For example, in the above embodiment, the traveling device 4, the sprocket wheel 16, and the idler wheel are used. The type in which the crawler 15 is wound around a traveling wheel such as 17 is also applicable, but it is also applicable to a type in which the traveling wheel is used as front and rear wheels.

Further, the respective parts of the engine room 6 may be arranged in a reverse arrangement in the left-right direction with the engine 19 interposed therebetween. For example, the cooling fan 20, the radiator 21, and the oil tank 22 are arranged along the right side of the engine 19. The hydraulic tandem pumps 26 may be arranged in order, and the hydraulic tandem pump 26 may be arranged on the left side of the engine 19.

Further, in the above-described embodiment, the driving of the traveling device 4 is of the HST type, which is particularly preferable, but the present invention can be applied to a type in which the driving force of the engine 19 is transmitted to the driving wheel via a mechanical transmission element. ..

Further, in the above-described embodiment, the riding management machine is a self-propelled boom sprayer, but the riding management machine is applicable to all riding management machines that perform intermediate management work such as weeding, cultivating, additional fertilizer, soil gathering, and control work.

3... Body frame, 4... Traveling device, 5... Driver's seat, 6... Engine room, 15... Crawler, 16... Sprocket wheel (driving wheel), 17... Idler wheel, 18... Road wheel, 19... Engine, 20... Cooling Fan, 21... Radiator, 22... Oil tank, 24... Air cleaner, 25... Battery, 26... Hydraulic tandem pump, 28... Hydraulic motor, 29... Power atomizer, 100... Self-propelled boom sprayer (passenger management machine).

Claims (4)

The vehicle body frame (3), a traveling device (4) disposed below both sides of the vehicle body frame (3) in the left-right direction orthogonal to the front-rear direction, and capable of traveling the vehicle body frame (3), and the vehicle body frame ( 3) A driver's seat (5) and an engine room (6) arranged above, and an engine (19) for driving the traveling device (4) is arranged in the engine room (6). It is a passenger management machine (100),
A cooling fan (20) is provided on one side of the engine (19) in the left-right direction, and a radiator (21) for cooling engine coolant is provided on one side of the cooling fan (20), and the radiator ( 21) A passenger management machine (100), characterized in that an oil tank (22) for hydraulic oil is arranged in parallel in this order on one side of one side. The passenger management machine (100) according to claim 1, wherein an engine air cleaner (24) and a battery (25) are disposed above the oil tank (22). The drive of the traveling device (4) is of HST type,
On the other side of the engine (19) in the left-right direction, it is driven by being connected to the output shaft of the engine (19), and the hydraulic pressure generated using the hydraulic fluid is applied to the traveling device (4). 3. The passenger management machine (100) according to claim 1 or 2, further comprising a hydraulic tandem pump (26) arranged to supply a hydraulic motor (28) for rotating the drive wheel (16). The passenger management machine (100) according to claim 3, wherein a power sprayer (29) for spraying a chemical liquid is disposed above the hydraulic tandem pump (26).

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