JPH09252702A - Spray section of self-propelled pest controlling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen the range of agrochemical application by using a pest controlling machine mounted with a case housed with swingable plural nozzles mounted on a traveling vehicle so as to conduct pest controlling work for fruit trees, etc. SOLUTION: This spray section D is made up of a nozzle swing case 22 housed with a swing driving mechanism to swing plural nozzles 30, 30... transversely and independently of one another and a drive set up on a support 21 stood on the machine body and designed to swingably drive the nozzle swing case longitudinally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a nozzle rocking type control machine mounted on a traveling vehicle for controlling fruit trees and the like.

[0002]

2. Description of the Related Art Conventionally, as a self-propelled control machine, a technique of diffusing and spraying a chemical solution discharged from a nozzle by a fan like a speed sprayer has been known, but in orchards of shelves, the surface of leaves is covered. In many cases, the chemical was not applied, and the back surface was almost free from the chemical, resulting in uneven spraying. Therefore, a technique has been known in which a plurality of nozzles are simultaneously swung back and forth and left and right to spray in an elliptical shape. For example, it is a technique disclosed in Japanese Patent Laid-Open No. 7-255349.

[0003]

However, in the conventional nozzle swing type self-propelled control machine, since the nozzles are simultaneously swung back and forth and left and right to spray in an elliptical shape, and the leaves are swung while spraying. The chemicals are applied to the front and back of the leaves, but since the nozzles in the spraying section were arranged in a fan shape, a large number of nozzles were required, and the rocking mechanism and the vibration were large. Therefore, a nozzle having a sufficient reach distance is used so that it can be swung by a compact swing mechanism.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In a self-propelled control machine having a spray section at the rear of the machine body, a nozzle rocking case containing a rocking drive mechanism that rocks a plurality of nozzles separately in the left-right direction with respect to the traveling direction of the machine body is installed upright on the machine body. The spray unit is configured by a front-back swing drive unit that is disposed on the support member and swings the nozzle swing case in the front-back direction with respect to the machine body traveling direction.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view of a self-propelled insect control machine, FIG. 2 is a side view showing a swinging mechanism of a nozzle swing type spray section of the present invention, and FIG.
Is a rear view showing the swinging mechanism of the spray section, FIG. 4 is a front view sectional view showing the drive mechanism inside the nozzle swinging case, and FIG. 5 is a side view sectional view showing the connection between the nozzle and the chemical solution hose.

First, the overall structure of the self-propelled control machine will be described with reference to FIG. A chassis 9 is fixedly mounted on a crawler traveling device A around which the left and right crawlers 10 are wound, a driving section B is formed on a front portion of the chassis 9, and a roof 20 is arranged above the driving section B. Covers. The driving section B
An operation column 12 is erected at the front of the operation column 1.
A steering lever 3 and a parking brake lever 4 are arranged on the upper side of the steering wheel 2. A driver's seat 11 is disposed in the left-right center of the rear part of the driver's part B, a side column 40 is provided on the left side of the driver's seat 11, a main gear shift lever 5, an auxiliary gear shift lever, and a power sprayer 2.
A dynamic injection clutch lever for activating, a cock for opening and closing the water supply to the spray section D at the rear part, and the like are arranged.

On the chassis 9 at the rear of the driver's seat 11, a tank chamber 13 is provided in the front part to mount a chemical liquid tank, and a power chamber 14 is provided in the rear part to drive the traveling drive and the power sprayer. The engine E, the mission case, the hand spraying hose reel, the battery 19, the power sprayer 2 and the like are housed, and these are covered with a cover. The covers are arranged on the left and right sides so that the covers can be opened by flipping them upward centering on the center of the upper part. An upper lid for introducing a chemical liquid is provided on the upper portion of the tank chamber 13.

Next, the spraying section D of the present invention arranged on the rear portion of the chassis 9 will be described. In the present embodiment, several nozzles are swingably arranged in the spraying section D, and the spraying section D is changed to a supporting column 21 which is a supporting member erected at the rear portion of the chassis 9 and whose vertical mounting position is changed. It is fixed as possible. As shown in FIG. 2, the spraying section D includes a nozzle swing case 22.
And several (three in this embodiment) nozzles 30.3
0.30 and the swing drive mechanism C of the nozzle 30.

The nozzle rocking case 22 is formed in a substantially cylindrical shape and houses a rocking drive mechanism C. The nozzle 3
No. 0 adopts a reach-distance type nozzle capable of spraying a chemical solution to a distant place, and the injection port 30a is formed in an L shape in a side view.
And a pipe portion 30b that rotatably supports the injection port 30a.
And the tips of the injection ports 30a, 30a, 30a are arranged so as not to overlap in a side view when rotating. The pipe portion 30b is pivotally supported in the front-back direction of the nozzle swing case 22. The swing drive mechanism C of the nozzle 30 is shown in FIG.
~ As shown in Fig. 5, the pipe portions 30b, 30b, 3
The gears 23, 24, 25 are fixedly mounted on the center of 0b in the front-rear direction. The gears 23, 24, 25 have the same number of teeth, and the number of teeth is smaller than that of the small-diameter gears 24, 25. It is composed of a large diameter gear 23 with many
, And the small diameter gear 25 is meshed with the small diameter gear 24 so that the small diameter gear 24 and the small diameter gear 25 rotate in reverse.

Further, stays 27, 27 project from the side surface of the large-diameter gear 23, and bolt holes are opened in the stays 27, 27. On the other hand, the adjustment link 28 that constitutes the link mechanism is formed in an L shape in a front view and a side view, a long hole 28c is opened in a lateral plate 28b of the adjustment link 28, and a long hole 28c portion of the horizontal plate 28b is formed. It is inserted between the stays 27 and 27 and fixed by bolts 31 so that the position of the elongated holes 28c can be adjusted. A pivot shaft 28a is provided at the other end of the adjustment link 28, and pivotally supports one end of a link arm 37.

A swing motor 29 is housed and fixed in the nozzle swing case 22, a worm gear 33 is fixedly mounted on an output shaft 32 of the swing motor 29, and a worm wheel 34 is meshed with the worm gear 33. The worm wheel 34 is fixed on a drive shaft 35 rotatably supported by the nozzle swing case 22. The drive shaft 35
A rotary link 36 is fixedly provided on the upper side, and the other end of the link arm 37 is pivotally supported on the other end of the rotary link 36 by a pivot shaft 36a.

With this construction, the swing motor 29
When driven, the rotary link 36 and the link arm 37 perform a crank motion to reciprocally rotate the large-diameter gear 23 within a certain angle via the adjustment link 28, and the large-diameter gear 23
The small-diameter gear 24 and the small-diameter gear 25 are rotated at a larger angle than the large-diameter gear 23 in association with the rotation of the nozzles 30, and the nozzles 30 and 30 are swung as shown by arrows in FIG. I try to spray a lot above. However, the swing range can be changed by adjusting the position of the elongated hole 28c of the adjustment link 28 by the bolt 31, and the gears 23, 24 ,.
The position of the overlapping sprays can also be changed by replacing 25.

The front ends of the pipe portions 30b, 30b project forward from the front wall 22a of the nozzle rocking case 22, and chemical liquid hoses 39, 39 are connected to the end portions thereof so that the chemical liquid pressure-fed from the power sprayer 2 can be connected. It is possible to spray.
In the past, since the chemical solution hose 39/39 was directly connected to the pipe portion 30b, when the nozzles 30/30 are swung, the pipe portions 30b / 30b also rotate, and the chemical solution hose 39 is twisted. The mounting screw portion of the chemical liquid hose 39 was loosened to cause leakage of the chemical liquid, and the service life was shortened. For this reason, the chemical liquid hose 39 is designed to have a sufficient length to absorb the twist. In this embodiment, as shown in FIG. 5, the pipe portion 30b and the chemical liquid hose 39 are connected by a rotatable bush 41, and the end of the pipe portion 30b is connected to the socket 41a and the chemical liquid hose 39. Fix the plug 41b to the chemical hose 39
Is shortened.

Further, in the present invention, the spraying operation is performed while the nozzle rocking case 22 is rocked in the front-back direction by the front-back rocking drive section. The front-back rocking drive section is shown in FIGS. As shown, a holding cylinder 45 having a shaft center in the left-right direction is fixed to the upper portion of the support column 21 standing upright from the rear end of the chassis 9 so that the vertical position can be adjusted. Bearings 46, 46 are provided on the inner surface of the holding cylinder 45 to rotatably support the support shaft 44. The side surface of the nozzle rocking case 22 is fixed to the end of the support shaft 44, and the spraying section D is rotatable about the support shaft 44 in the front-rear direction.

An arm 47 is projected from the lower surface of the nozzle rocking case 22, and a pivot shaft 47 is provided below the arm 47.
By a, one end of the horizontal link 48 is pivotally supported, and the pivot link 49 is pivotally supported at the other end of the horizontal link 48. The other end of the rotation link 49 is fixed to the output shaft 51 of the drive motor 50. The drive motor 50 is mounted on a stay 52 fixed to the support column 21. When the drive motor 50 is driven in this way, the rotary link 49 is rotated, and the nozzle swing case 22 is swung in the front-back direction via the horizontal link 48. As another embodiment, the nozzle swing case 22 is not pivotally supported by the support column 21, but the arm 47 is not supported.
And the horizontal link 48 are integrally configured as a bell crank arm, and a pivot shaft 47a is pivotally supported on the support column 21, and the horizontal link 48 and the rotary link 49 are pivotally connected by a long hole to drive. The nozzle swing case 22 may be configured to swing in the front-rear direction by driving the motor 50, and the configuration of swinging the nozzle back and forth is not limited.

With such a configuration, the spray part D is simultaneously rocked back and forth while the nozzles 30 of the spray part D are rocked to the left and right, and the driving of the drive motor 50 is adjusted. The spray from each nozzle 30.30 is oscillated in a circular or elliptical motion, and the forward movement of the machine body is also added during the spraying work, and the chemical solution from the chemical solution tank 20 is moved by the power sprayer. It is sprayed in a spiral shape from the above, and the leaves of the fruit tree are rocked so that the leaves can be uniformly attached to the front and back of the leaves for the control work. However, by changing the lengths of the horizontal link 48 and the rotary link 49, which are the link mechanism driven by the drive motor 50, it is possible to change the back-and-forth swing amount,
The radius or eccentricity of the circle or ellipse of each nozzle 30, 30 is also changed. If the direction in which the nozzles 30, 30 swing and the direction in which the spray section D swings are at a right angle, the spray section D
The direction in which the nozzle is rotated is not limited, and the spray from the nozzles 30 can be formed in a spiral shape even if the nozzle is swung in the left-right direction.

[0017]

As described above, the present invention has the following advantages. That is, it is possible to reduce the number of nozzles, simplify hose piping, simplify the nozzle swinging mechanism, reduce the number of parts, reduce the number of assembly steps, and reduce the cost. Can be achieved. Also, since a nozzle with a long reach for spraying the chemical liquid is used, the force can be applied to the leaves to adhere the chemical liquid to the front and back of the leaves, and it is possible to reduce uneven spraying, and in one stroke work. Since it is possible to spray a wide area from the top to the bottom of the tree, it is possible to eliminate the reciprocating work such as additional coating and double coating, it is possible to shorten the working time and improve the working efficiency. did it.

[Brief description of drawings]

FIG. 1 is an overall side view of a self-propelled control machine.

FIG. 2 is a side view showing a swinging mechanism of a nozzle swinging type spray section of the present invention.

FIG. 3 is a rear view showing the swinging mechanism of the spray section.

FIG. 4 is a front view cross-sectional view showing a drive mechanism inside a nozzle swing case.

FIG. 5 is a side view sectional view showing the connection between the nozzle and the chemical solution hose.

[Explanation of symbols]

 D Spraying part 21 Supporting column 30 Nozzle 48 Horizontal link 49 Rotating link 50 Drive motor

Claims (1)

[Claims] 1. A self-propelled control machine having a spray section at the rear of the machine body, and a nozzle rocking case accommodating a rocking drive mechanism for individually rocking a plurality of nozzles in the left-right direction with respect to the machine traveling direction, A self-propelled pest control characterized in that a spraying section is constituted by a front-back swing drive section which is arranged on a support member which is erected on the machine body and which swings and drives the nozzle swing case in the front-back direction with respect to the traveling direction of the machine body. Spray section of the machine.