JP2018121577A - Traveling spray machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traveling spray machine in which an adverse effect never extends to the spraying from a spraying unit by an air flow even if the air flow is discharged from the inside of a traveling machine body toward the front.SOLUTION: A traveling spraying machine includes a traveling machine body 4, a spraying unit 14 provided in front of the traveling machine body 4, blowing means 21 provided in the traveling machine body 4, and air flow guides 22, 25 for diverting an air flow A generated by the blowing means 21 and discharged toward the front of the traveling machine body 4 from the spraying unit 14. According to this arrangement, the air flow A generated by the blowing means 21 and discharged toward the front of the traveling machine body 4 is guided so as to be diverted from the spraying unit 14 by the air flow guides 22, 25. Accordingly, an adverse effect is not extended to the spraying from the spraying unit 14 due to the air flow A.SELECTED DRAWING: Figure 3

Description

The present invention relates to a traveling spreader that spreads medicines and the like while traveling.

As an example of a traveling spreader, a medicine for controlling crops from the spraying unit while traveling with a water-cooled engine mounted on the traveling aircraft body, with a downward spraying unit in front of a riding-type traveling aircraft body The thing which spreads etc. is known (refer patent document 1).

In such a traveling spreader, as described in paragraph 0015 of FIG. 4 and FIG. 4, a cooling fan is disposed at a rear position of the engine in the engine room at the front of the traveling machine body. A radiator is disposed at a rear position of the fan. Then, outside air is sucked from the outside of the bonnet by driving the cooling fan, and the outside water is applied to the radiator to cool the cooling water. The airflow hitting the radiator is discharged out of the engine room through slits on the front and side surfaces of the bonnet.

JP 2001-301668 A

According to the conventional configuration, spraying particles such as medicine sprayed from the spraying part are blown off by the cooling air discharged from the front of the bonnet to the front of the traveling machine body, and the effectiveness of spraying the medicine or the like is increased. There is a problem of being obstructed.

In addition, since the radiator and the cooling fan are arranged behind the engine opposite to the standard position, the cooling water flow path connecting the engine and the radiator is operatively connected to the engine and the cooling fan. There is a problem that handling of the cooling fan drive path is complicated, and the assembly and maintenance of the cooling device in the engine room are poor.

The present invention has been made in view of the circumstances as described above, and even if an air flow is discharged from the inside of the traveling machine body to the front, this air flow does not adversely affect the spray from the spray unit. Is to provide a machine.

Furthermore, the present invention is to provide a traveling machine body in which both the flow path of cooling water between the engine and the radiator and the drive path between the engine and the cooling fan can be made simple and compact. It is what.

In order to solve the above problems, a traveling spreader according to the present invention is created by a traveling machine body, a spraying unit provided in front of the traveling machine body, a blowing unit provided in the traveling machine body, and the blowing unit. And an airflow guide that deflects the airflow discharged toward the front of the traveling machine body from the spraying portion (Claim 1).

ADVANTAGE OF THE INVENTION According to this invention, it can spread from a spreading part, making a traveling body drive | work. During the spraying operation, the airflow created by the air blowing means and discharged toward the front of the traveling machine body is guided by the airflow guide so as to deviate from the spraying portion. For this reason, the airflow does not adversely affect the spraying from the spraying part.

The direction in which the airflow is guided by the airflow guide (the direction of deflection) can be appropriately set according to the arrangement position of the spraying unit, the direction of spraying from the spraying unit, and the like. For example, when the spraying is performed downward from the spraying unit, it is preferable that the airflow is guided upward or laterally outward of the traveling machine body by the airflow guide.

As a preferred embodiment, an engine is mounted on a front portion of the traveling machine body, a radiator and a cooling fan are disposed at a front position of the engine, and the blowing unit is the cooling fan. (Claim 2).

In this case, since the radiator and the cooling fan are arranged at the front position of the engine, the flow path of the cooling water between the engine and the radiator and the drive path between the engine and the cooling fan are both It can be simple and compact. In addition, since the cooling air flows more efficiently than the conventional arrangement in which the cooling fan is provided behind the engine, the cooling efficiency is improved.

In the said aspect, since the cooling fan exists in the front position of an engine, the airflow created with a cooling fan blows off strongly toward the front from the inside of a traveling body. However, since the airflow guide is provided, there is no fear that the spraying from the spraying part will be adversely affected.

As a preferred embodiment, the vertical position of the spraying portion can be changed within a predetermined height range, and the airflow guide is disposed so as to act effectively regardless of the change in the vertical position of the spraying portion. It can also be set as the aspect (Claim 3).

In this case, the most appropriate spraying according to the situation at the spraying site and the type of sprayed material can be performed by appropriately changing the vertical position of the spraying unit. In addition, the airflow guide works effectively regardless of the change in the vertical position of the spraying section, so the vertical position of the spraying section can be freely adjusted within a specified height range without worrying about the adverse effects of airflow on the spraying. Can be changed.

As a preferred embodiment, the airflow guide is provided with a lift device that supports the spraying unit on the traveling machine body and allows the vertical position of the spraying unit to be changed, and the spraying unit is in the lowest lowered position. The airflow guide is fixed to the lift device such that the airflow guide is substantially horizontal, and the airflow guide rises and the airflow diverting action is produced as the spraying unit is raised by the operation of the lift device. (Claim 4).

In this case, since the airflow guide is substantially horizontal when the spraying portion is at the lowest position, a downward bulge is not formed by the airflow guide. Therefore, the airflow guide does not get in the way when the traveling machine body travels. On the other hand, the airflow guide rises as the spraying unit rises due to the operation of the lift device, and the airflow deflecting action by the airflow guide is exhibited. Therefore, there is no adverse effect caused by the airflow discharged from the inside of the traveling machine body during the spraying performed by raising the spraying part.

1 is an overall perspective view of a traveling spreader according to an embodiment of the present invention. It is the perspective view which disclosed the inside of the front part of the traveling spreader of FIG. In the traveling spreader of FIG. 1, it is the side view which simplified and showed the inside of the front part of a traveling body. The state where the boom is lowered to the lowest position is indicated by a two-dot chain line, and the state where the boom is raised to the highest position is indicated by a solid line. In FIG. 3, it is a perspective view of the state which lowered | hung the boom to the lowest position. In FIG. 3, it is a perspective view of the state which raised the boom to the highest position. It is a principal part simplified side view of other embodiment of this invention. It is a principal part simplified plan view of other embodiment of this invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, with reference to FIG. 1, the whole structure of the traveling spreader which concerns on one Embodiment of this invention is demonstrated. The traveling spreader 1 of FIG. 1 is a spreader for agricultural work as an example, and is for spraying medicines and the like on agricultural products while traveling in the field.

The traveling spreader 1 of FIG. 1 includes a riding-type traveling machine body 4 that is movable forward and backward by front wheels 2 and 2 and rear wheels 3 and 3. The driver sits down on the driver's seat 5 and operates the traveling spreader 1 while operating operation members such as the steering handle 6 and various operation levers 7.

A boom type spraying member 9 is supported at the front portion of the traveling machine body 4 via a parallel linkage type lift device 8 so as to be movable up and down. The spreading member 9 includes a central boom 10 that is horizontally fixed to the lift device 8, and a left boom 11 and a right boom 12 that are foldably connected to both left and right ends of the central boom 10. A nozzle pipe 13 is supported on each boom 10, 11, 12, and a large number of spray nozzles 14 serving as spray sections are arranged at predetermined intervals in each nozzle pipe 13. Each nozzle tube 13 communicates with a chemical tank 15 mounted on the traveling machine body 4 behind the driver's seat 5 via a spray pump (not shown).

The left and right booms 11, 12 are changed in posture between a folded position (position shown in FIG. 1) extending along the left and right sides of the traveling machine body 4 and an extended position extending from the central boom 10 to the left and right outwards of the traveling machine body 4. Is possible. During the spraying operation, the left and right booms 11 and 12 are fixed at the extended position. Thereby, wide spreading can be performed while making the traveling body 4 travel. In spraying, by moving the spraying member 9 up and down by the lift device 8, the spray ground height can be appropriately changed within a predetermined height range. As shown in FIG. 2, the change in the ground clearance is performed by a pair of left and right linear motion actuators 16 installed between the traveling machine body 4 and the lift device 8 (in FIG. 2, only the actuator on the left side of the traveling machine body 4 is shown). Controlled).

On the other hand, the left and right booms 11 and 12 are fixed at the folding positions shown in FIG. 1 when the traveling spreader 1 is not sprayed or stored in a warehouse. Thereby, the left and right booms 11 and 12 do not get in the way during non-spraying movement or storage. The posture change of the left and right booms 11 and 12 is controlled by linear motion actuators (not shown) installed between the central boom 10 and the left and right booms 11 and 12, respectively.

An engine room 18 is defined by a bonnet 17 at the front of the traveling machine body 4. A water-cooled internal combustion engine 19 is disposed in the engine room 18 as shown in FIG. The engine 19 drives the rear wheels 3 and 3 of the traveling machine body 4 and also drives a spraying pump, a pump for supplying power to the actuator 16, and the like. A radiator 20 is disposed in front of the engine 19. Since the radiator 20 is disposed in front of the engine 19 and close to the engine 19, the flow path of the cooling water between the radiator 20 and the engine 19 can be made simple and compact.

As shown in FIG. 3, a cooling fan 21 is disposed between the radiator 20 and the engine 19 as air blowing means. This cooling fan 21 is also driven by the engine 19. The cooling fan 21 blows air to the front of the traveling machine body 4 and blows air to the radiator 20 to cool the cooling water. Since the cooling fan 21 is disposed in front of the engine 19 and at a position close to the engine 19, the drive path between the engine 19 and the cooling fan 21 can be made simple and compact.

The airflow A created by the cooling fan 21 passes through the radiator 20 and is discharged forward from the front opening 17a of the bonnet 17. Here, if no measures are taken, there is a concern that the airflow A discharged from the front opening 17a of the bonnet 17 may adversely affect the spray from the spray nozzle 14 of the central boom 10. That is, there is a concern that the airflow A blows off the droplets sprayed from the spray nozzle 14 of the central boom 10 toward the crop, and the spraying effect of the chemical solution or the like cannot be obtained. Therefore, in the present embodiment, a first airflow guide 22 is provided for deflecting the airflow A discharged forward from the interior of the traveling machine body 4 from the spray nozzle 14 of the central boom 10.

As shown in FIGS. 2 and 3, the first airflow guide 22 is fixed to the front surface of the radiator 20. The first airflow guide 22 includes a plurality of upper and lower air guide plates 23 and a frame body 24 that supports these air guide plates 23. The left and right ends of each air guide plate 23 are fixed to the frame body 24 (see FIG. 2), and the upper surface of each air guide plate 23 extends obliquely upward from the front surface of the radiator 20 to the front of the traveling machine body 4. (See FIG. 3).

As shown in FIG. 3, the airflow A created by the cooling fan 21 and discharged forward passes through the radiator 20 and is then guided to the respective air guide plates 23 of the first airflow guide 22. Thus, spraying from the spray nozzle 14 of the central boom 10 is avoided and blown through to the front upper oblique direction F1 of the traveling machine body 4. For this reason, it is prevented that the spray from the spray nozzle 14 of the central boom 10 located in front of the traveling machine body 4 is adversely affected.

By the way, in the present embodiment, the ground level can be changed within a predetermined height range H by the action of the lift device 8. For this reason, even when the spraying ground height is changed within the predetermined height range H, it is necessary to prevent the airflow A discharged from the traveling machine body 4 from adversely affecting the spraying. Therefore, the first airflow guide 22 is disposed so as to operate effectively regardless of the change in the vertical position of the spray nozzle 14 of the central boom 10.

In FIG. 3, the state of the link device 8 in which the spreading member 9 is lowered to the lowest position is indicated by a two-dot chain line, and the state of the link device 8 in which the scattering member 9 is raised to the highest position is indicated by a solid line. As can be seen from FIG. 3, even when spraying is performed with the spraying member 9 raised to the highest position, the airflow A discharged from the traveling machine body 4 is sprayed by the action of the first airflow guide 22. It is considered that the spraying from the spraying nozzle 14 is not adversely affected because it is deflected obliquely upward F1 so as to avoid 14. On the other hand, when the air flow guided by the lowermost air guide plate 23 in the first air flow guide 22 is diffused up and down, a part thereof disturbs the spray from the spray nozzle 14. The situation is also predicted.

Therefore, in the present embodiment, the second airflow guide 25 is provided in order to surely prevent the airflow that has passed through the first airflow guide 22 from becoming an obstacle to spraying from the spray nozzle 14 at the rising position. It is. The second airflow guide 25 is located between the spray nozzle 14 in the raised position and the first airflow guide 22, and the airflow leaked from the first airflow guide 22 is passed from the spray nozzle 14 in the raised position. Acts to deflect or block.

As shown in FIG. 3, the second airflow guide 25 is fixed to the lift device 8 so as to be in a substantially horizontal state when the spray nozzle 14 of the central boom 10 comes to the lowest lowered position by the operation of the lift device 8. ing. And as the spray nozzle 14 of the central boom 10 rises due to the operation of the lift device 8, the second airflow guide 25 rises and airflow deflecting action or airflow blocking action is produced.

As shown in FIGS. 4 and 5, the second airflow guide 25 does not interfere with the operation of the lift device 8, and has an area that allows the airflow diverting action or airflow blocking action to be effectively performed. It consists of a thin plate.

In the present embodiment, by appropriately changing the vertical position of the spray nozzle 14 by the lift device 8, the most appropriate spraying according to the height of the crop and the type of sprayed material can be performed. Further, since the first airflow guide 22 operates effectively regardless of the change in the vertical position of the spray nozzle 14 of the central boom 10, the spraying can be performed without worrying about the adverse effect on the spraying by the discharged airflow A. The vertical position of the nozzle 14 can be freely changed within a predetermined height range H.

Further, since the second airflow guide 25 is substantially horizontal when the spray nozzle 14 of the central boom 10 is in the lowest lowered position, the second airflow guide 25 does not form a downward bulge. Therefore, it can prevent that the 2nd airflow guide 25 contacts a crop. On the other hand, the second airflow guide 25 rises as the spray nozzle 14 is raised by the operation of the lift device 8, and the airflow deflecting action or airflow blocking action by the second airflow guide 25 is exhibited. Therefore, it is possible to reliably prevent adverse effects caused by the airflow A discharged from the interior of the traveling machine body 4 during spraying performed by raising the spray nozzle 14.

In the present embodiment, the first airflow guide 22 and the second airflow guide 25 are provided so that the airflow A discharged from the traveling machine body 4 is deflected from the spray nozzle 14 of the central boom 10 in two stages. It is. Instead, as shown in FIG. 6, a single-plate airflow guide 26 having a large area is fixed in front of the radiator 20, and the airflow diverting action toward the front obliquely upward F <b> 2 is achieved by this single airflow guide 26. It can also be played.

In addition, the following modes can also be adopted as other embodiments of the present invention.

(1) The present invention is not limited to a traveling spreader that sprays liquid, and can also be applied to a traveling spreader that sprays particles.

(2) The airflow A discharged from the inside of the traveling machine body 4 to the outside is not limited to that created by the cooling fan 21 for blowing air to the radiator 20. The airflow guides 22, 25, and 26 can be applied to airflow from other air blowing means provided in the traveling machine body.

(3) The direction in which the airflow is deflected by the airflow guide is not limited to the diagonally upper front of the traveling machine body 4. For example, in the case of the traveling spreader 1 shown in FIG. 1, an airflow guide 27 as shown in FIG. 7 as viewed from above can be provided in front of the radiator 20. The airflow guide 27 acts to divert the airflow A discharged from the traveling machine body 4 to the left and right outward F3 of the traveling machine body 1.

(4) The mode of the lift device 8 is not limited to the parallel linkage type. It may be of a type in which the spraying part (spraying nozzle 14) is moved up and down linearly.

(5) The area of the second airflow guide 25 is increased so that the airflow deflecting action is exerted on the entire range of the vertical position of the spray nozzle 14 with only the second airflow guide 25, and the first airflow guide 25 The airflow guide 22 can also be abolished.

DESCRIPTION OF SYMBOLS 4 Traveling machine body 8 Lift apparatus 14 Spreading part 19 Engine 20 Radiator 21 Blower means (fan for cooling)
22, 25, 26, 27 Airflow guide A Airflow H Predetermined height range

Claims (4)

A traveling machine body, a spraying part provided in front of the traveling machine body, a blowing means provided in the traveling machine body, and an air flow created by the blowing means and discharged to the front of the traveling machine body from the scattering part. A traveling spreader comprising: an airflow guide that deflects. 2. The traveling spreader according to claim 1, wherein an engine is mounted on a front portion of the traveling machine body, a radiator and a cooling fan are disposed at a front position of the engine, and the blowing unit is the cooling fan. The vertical position of the spraying part can be changed within a predetermined height range, and the airflow guide is disposed so as to act effectively regardless of the change in the vertical position of the spraying part. Traveling spreader as described in. A lift device is provided that supports the spraying part on the traveling machine body and allows the vertical position of the spraying part to be changed, so that the airflow guide is in a substantially horizontal state when the spraying part is at the lowest lowered position. 4. The traveling spray according to claim 1, wherein the airflow guide is fixed to the lift device, and the airflow guide rises and an airflow diverting action is produced as the spraying unit is raised by operation of the lift device. Machine.

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