JP3466260B2 - Nozzle swing mechanism of self-propelled control machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle swing mechanism of a self-propelled pest control device mounted on a traveling vehicle for controlling fruit trees. 2. Description of the Related Art Conventionally, when a pest control operation for a fruit tree or the like is performed while traveling, a self-propelled control device such as a speed sprayer, a boom sprayer towed by a tractor, or a self-propelled device mounted on a traveling vehicle. It is known that the control is carried out by a type of pest control machine, and these self-propelled pest control devices are composed of an engine, a chemical tank, a pump, a nozzle, a blower, etc., and inhale and pressurize the chemical in the tank by a pump. It was configured to spray from the nozzle, or sprayed from the lower part of the fruit tree by blowing up further with a blower, but because spraying may be performed unevenly or unnecessary spraying, the applicant assigns a plurality of nozzles, It was proposed that the spraying be performed by swinging so that the swing trajectory becomes circular. [0003] However, in the control operation according to the prior art, since the trajectory of the nozzle is circular, a overlapping portion is formed between the trajectories of the nozzle, and the overlapping portion has a nozzle. A large amount of the medicine sprayed from the spray was sprayed on the overlapped portion, resulting in uneven spraying and inefficient control. [0004] The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. Correct multiple nozzles 1 of self-propelled control machine
The nozzle 1 can be swung back and forth and left and right by disposing it in a fan shape when viewed from the front.
Nozzle rotation in the front-back direction of the nozzle 1
The shaft 11 is disposed on the nozzle set table 2 with a slant in the front-rear direction.
And make the front and rear swing amount of the nozzle 1 larger than the left and right swing amount.
The trajectory of the nozzle swings obliquely long in the front-rear direction.
It is configured to draw, and the center locus R of the nozzle 1
The tangent T to the center locus R ′ of the nozzle 1 is
In the nozzle adjacent to the center locus R of the nozzle 1
The configuration is such that the heart trajectories R 'do not overlap . Next, the operation will be described. In controlling the fruit tree, when a motor is driven, a plurality of nozzles on a plurality of nozzle set tables swing obliquely back and forth, left and right, and the swing amount Is larger in the oblique front and rear than in the left and right, so the swing trajectory of the nozzle becomes an elliptical shape having a long axis in the oblique front and rear direction,
The overlapping portion of the swing trajectory is made smaller, so that the overlapping portion of the sprayed medicine also becomes smaller. In addition, since the major axis direction of the ellipse is inclined with respect to the traveling direction of the main body, the movement becomes an intermediate movement between the circular movement and the left-right reciprocating movement, so that the medicine can be sprayed without waste and without unevenness. become. Next, an embodiment will be described. FIG. 1 is a front view showing a nozzle swing mechanism of a self-propelled control device, FIG. 2 is a side view thereof, FIG. 3 is an overall side view of the self-propelled control device, and FIG. 5 is a plan view showing the center locus of the nozzle, FIG. 6 is a side view of an embodiment in which a plurality of nozzles are arranged in front and rear,
FIG. 7 is a front view of the same. Self-propelled pest control unit is running section A
The spraying machine B is mounted thereon. First, in FIG. 3, the traveling section A is composed of a crawler traveling apparatus 21. A free wheel 21a is provided at a front end of a track frame 21e, a driving wheel 21b is provided at a rear end, and free rollers 21c and 2 are provided at a lower center.
Are arranged, and these idler wheels 21a and drive wheels 21
b, raceway belt 21 between idler rollers 21c
The drive wheel 21b is supported by an axle projecting from a transmission case (not shown). A chassis 22 is disposed on track frames 21e of the crawler traveling devices 21 via support plates 22a. A front frame 23 extends forward from the front of the chassis 22. A step 23a is provided in the center of the front frame 23,
3, a seat 25 is arranged on the center of the rear part, and an operation column 26 is erected at the center of the front end of the step 23a.
A steering operation lever 26a protrudes from the upper part of the motor 6. Next, the spraying machine B will be described. As shown in FIG. 3 and FIG.
2, a medicine tank 28, an engine E, a power sprayer P, and a nozzle 1 are arranged in this order from the front, and the medicine tank 28 is arranged behind the seat 25, and the medicine tank 28 is arranged forward from the medicine tank 28 above the seat 25. The canopy 27 is protruded to prevent the sunshade and the sprayed medicine from being applied. At the rear of the chemical tank 28, the engine E and the power sprayer P are mounted in the left-right direction, covered by a cover 29, and the base of the nozzle 1 is similarly covered by a cover 30 to be independent. And open it up. The engine E drives the drive wheels 21b via the transmission case to drive the crawler-type traveling device 21.
Is driven at the same time as the power sprayer P is driven, and the power sprayer P sucks the medicine from the medicine tank 28 and sprays the medicine from the nozzles 1.1 of the spraying section N. The spray operation panel 32 is located on the left side of the seat 25.
Is provided so that the start / stop of spraying and the discharge amount can be adjusted. Next, the nozzle swing mechanism of the self-propelled pest control device of the present invention will be described. In FIG. 1 and FIG. 2, a plurality of nozzles 1, 1.
Are arranged radially in a fan shape when viewed from the front, and the nozzle set bases 2,... Are substantially concentric with the nozzles 1, 1. It is arranged in. First, the oblique front-back swing mechanism of the nozzles 1, 1 ... will be described. At the center of the lower surface of the nozzle set table 2, the nozzle link 4
4 are protruded in parallel toward the center (in the direction of the left-right rotation shaft 7), and a nozzle rotation stay 9 is fixedly provided on the front side. Here, when viewed from the front, the nozzle rotating stay 9 has a longer length in the front-rear direction on the right stay 9R than on the left stay 9L, and both the left and right stays 9R and 9L are arranged to be inclined rightward in the traveling direction of the main body. Has been established. In the present embodiment, the right stay 9R is longer than the left stay 9L, and both the left and right stays are inclined by 45 ° to the right in the traveling direction. The right stay 9R is longer than the right stay 9R, and both the left and right stays may be disposed on the left side in the traveling direction, and the directionality of the inclination is not particularly limited. A substantially semicircular oscillating link 3 disposed in the left-right direction is interposed between the nozzle links 4, 4. It is fixed to. The front-rear rotation shaft 8 is rotatably mounted on pivot supports 12a at the upper part of the rotation support frames 12.
The lower end is attached and fixed at the position on the rear left and right upper surfaces of the nozzle set table 20. A connecting plate 17 is fixed to a middle part of the front-rear rotation shaft 8 so as to protrude forward.
Are pivotally connected, and the lower end 16a of the joint 16 is
Are pivotally connected to a middle part of the link plate 15. The lower end 16a and the distal end 16b are formed of a spherical joint or the like, and are rotatable forward, backward, left and right. Next, a description will be given of the left-right rotating mechanism of the nozzles 1, 1.... The shaft 11 is suspended in the front-rear oblique direction, and the nozzle rotation shaft 11 is rotatably supported by a shaft support 13 b of the pedestal 13. Connecting arm 13a which is bent and erected
It is fixed at the tip. The pedestal 13 is attached and fixed to the nozzle support frame 10. The nozzle support frame 10 is substantially trapezoidal in front view, and the pedestals 13, 13. Set bases 2, 2 ... 1 each for nozzles 1, 1, ...
Are arranged upright to form a spraying section N, and the nozzles 1, 1... Of the spraying section N can be arranged in a fan shape above the swing link 3. In this embodiment, the spraying unit N includes nine nozzles 1.1,.
The number of nozzles 1 is not particularly limited. A left-right rotating stay 5 is fixedly provided at the center of the lower surface of the nozzle support frame 10, and a left-right rotating shaft 7 is mounted on the left-right rotating stay 5 in the front-rear direction. . The left and right rotation shaft 7 is supported by a shaft support 14 a fixedly provided on the upper surface of the rotation support table 14, and the rotation support table 14 is located at the position of the front center upper surface of the nozzle base 20. It is attached and fixed. A pivot shaft 5a is protruded rearward from a lower end portion of the rear longitudinal portion of the left-right rotating stay 5, and the pivot shaft 5a is provided at one end of a link plate 15. It is pivoted at 15a. The link plate 1
The other end of 5 is provided with a pivotal support 15b, and the drive shaft Ma of the motor M is provided with an eccentric shaft Mb. Then, the motor M is driven to drive the eccentric shaft Mb.
Is rotated, the pivot portion 15b of the link plate 15 makes a circular motion, the link plate 15 oscillates left and right while the pivot portion 15a oscillates left and right, and the lower end portion 16a of the joint 16 moves elliptically. I do. When the link plate 15 swings left and right, the left and right rotating stay 5 swings left and right,
The nozzle support frame 10 swings left and right with the left and right rotation shaft 7 as a fulcrum, and the nozzles 1, 1... The elliptical movement of the lower end 16a of the joint 16 causes the joint 16 to move up and down, and the connecting plate 17 to which the upper end 16b of the joint 16 is pivoted to rotate up and down. The swing link 3 swings back and forth, the nozzle links 4 swing back and forth, and the nozzle 1 of the spraying section N is supported by the nozzle rotation shaft 11 as a fulcrum, which is suspended rightward in front view. 1... Swing obliquely back and forth. Further, the amount of oblique swinging of the nozzle 1 is set to be larger than the amount of swinging left and right, and as shown in FIG.
The center locus R of, with respect to the main body traveling direction F, draw a long oval obliquely longitudinal direction, parallel to the tangent line T is body traveling direction F of the center locus R 'of adjacent nozzles, the nozzle 1
Between the center locus R of the nozzle and the center locus R 'of the adjacent nozzle
The gap C is formed so as not to overlap. Further, as another embodiment for eliminating the unevenness of control, as shown in FIGS. 6 and 7, it is possible to arrange two sets of front and rear spray parts N, each having a front and rear and left and right swing mechanism. , The drive shaft Ma is extended to connect the middle part to the connection case 19.
And the front row of link plates 15 and the rear row of link plates 15 'are pivotally connected at positions where the phase of the eccentric crankshaft Mb' is shifted by 180 degrees. As a result, when the front row nozzles 1, 1... Are at the left end of the left and right swing, the rear row nozzles 1 ′, 1 ′,.
Is at the right end, the overlapping portion is reduced at the front and rear positions, the dispersion of the spraying amount of the medicine in the left and right direction is reduced, and even if the vehicle speed of the traveling section A is increased, the nozzles of a plurality of rows are arranged in one row. Spray unevenness is reduced more than that of In this embodiment, two or more rows of nozzles are used. However, three or four rows may be used, and the number of rows is not particularly limited. Further, three nozzles 1 are arranged on the three nozzle set tables 2, but the number of the nozzle set tables 2 and the number of the nozzles 1 are not particularly limited. The present invention is configured as described above, and has the following effects. That is, the plurality of nozzles 1, 1... On the plurality of nozzle set bases 2 are swung obliquely back and forth and left and right to make an elliptical motion and spray the chemical solution onto the fruit trees, thereby blowing up the medicine by the wind force of the blower. Even if not
With a simple mechanism, the medicine can be easily sprayed on the fruit tree, and since the medicine is not sprayed in one direction, the unevenness of spraying does not occur, and the performance of attaching the medicine to the fruit tree can be improved. Also, the swing trajectory of the nozzle is
It becomes an elliptical shape having a long axis in the oblique front-rear direction, so that the overlapping portion of the swing locus can be reduced, and the overlapping portion of the sprayed medicine also becomes smaller. Further, since the major axis direction of the ellipse is inclined with respect to the traveling direction of the main body, the medicine can be sprayed without waste and without unevenness.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a nozzle swing mechanism of a self-propelled control device. FIG. 2 is also a side view. FIG. 3 is a side view of the self-propelled control device. FIG. 4 is also a plan view. FIG. 5 is a plan view showing a center locus of a nozzle. FIG. 6 is a side view of an embodiment in which a plurality of nozzles are arranged in front and rear rows. FIG. 7 is also a front view. [Description of Signs] B Spraying work machine M Motor Ma Motor axis Mb Eccentric axis N Spraying section R Center trajectory 1 Nozzle 2 Nozzle set base 3 Swing link 4 Nozzle link 7 Left and right rotation axis 8 Front and rear rotation axis 9 Nozzle rotation Stay 10 Nozzle support frame 11 Nozzle rotation axis

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP2-150051 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01M 7/00

Claims (1)

(57) [Claims] [Claim 1] A plurality of nozzles 1 of a self-propelled pest control device are viewed from the front.
It is arranged in a fan shape, and the nozzle 1 can swing back and forth, left and right
In the configuration shown in FIG.
1 is arranged on the nozzle set table 2 at an angle in the front-back direction.
And make the longitudinal swing amount of the nozzle 1 larger than the lateral swing amount.
The trajectory of the nozzle swings obliquely long in the front-rear direction.
It is configured to draw, and the center locus R of the nozzle 1
The tangent T to the center locus R ′ of the nozzle 1 is
In the nozzle adjacent to the center locus R of the nozzle 1
A nozzle swing mechanism for a self-propelled pest control device, wherein the heart trajectory R 'is configured not to overlap .