JP3466258B2 - Nozzle swing speed adjustment mechanism of self-propelled control machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
The present invention relates to a mechanism for adjusting the swinging speed of a nozzle of a self-propelled pest control device for performing pest control work on fruit trees. 2. Description of the Related Art Conventionally, when performing pest control work on a fruit tree or the like while traveling, it is mounted on a self-propelled control machine such as a speed sprayer, a boom sprayer or a traveling vehicle towed by a tractor or the like. It is known to carry out with self-propelled pests. These self-propelled pest control machines are composed of an engine, a chemical tank, a pump, a nozzle, a blower, and the like. The chemical in the tank is sucked and pressurized by a pump, sprayed from a nozzle, or further blown up by a blower to produce fruit trees. Was configured to be sprayed from below. However, there is a case where spraying is uneven or unnecessary spraying is performed. Therefore, the present applicant has proposed that spraying is performed by swinging the nozzle. [0003] However, in the control operation in the prior art, the amount sprayed from the nozzle is determined by the water pressure from the pump of the power sprayer, is substantially constant, and the number of rotations of the fan is controlled. Is also substantially constant. Also, when performing spraying work with a nozzle oscillating control device, spraying work is performed at a reduced speed in places where fruit trees are dense, and spraying work is performed at a higher speed in rough places, regardless of running speed Since the swing is constant, when the traveling speed is high, the swing speed is low and unevenness may occur. Therefore, an object of the present invention is to provide a self-propelled pest control device capable of swinging in proportion to a traveling speed and reducing scattering unevenness. [0004] The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In self-propelled pests, multiple
The nozzle 1 is arranged in a fan shape in rear view, and the nozzle 1
Slur set table 2 is connected to the back and forth and left and right swing mechanism,
It is configured to swing back and forth and left and right, and swings back and forth and left and right.
The drive source of the mechanism is a single variable speed motor M,
Rotating the eccentric shaft Mb of the variable speed motor M,
The link plate 15 is configured to swing left and right.
Swinging left and right with the left and right rotating shaft 7 as a fulcrum
The stay 5 swings right and left, and the left and right rotating stay 5
The nozzle support frame 10 is swung right and left to
Nozzle 1 supported on frame 10 swings right and left
And a joint 16 connected to the link plate 15 is provided.
And the joint 16 is used as a fulcrum about the front-rear rotation shaft 8.
The swing link 3 is swung back and forth, and the swing link 3
Move the nozzle link 4 provided on the nozzle support frame 10 back and forth
The nozzle 1 supported by the nozzle link 4
It is configured to swing back and forth around the slewing rotation shaft 11,
The one rotation speed variable motor M is provided with rotation speed control means;
Connected and the operator controls the speed dial 37.
Speed can be changed at will and the rotation speed control means
Connected to the line speed detection means, the nozzle in proportion to the traveling speed
The speed of swinging back and forth and right and left of the set table 2 can be adjusted . Next, the operation will be described. When performing control work on fruit trees, the variable speed motor is driven, and a plurality of nozzles on a plurality of nozzle sets are rocked back and forth and left and right by a back and forth and left and right swing mechanism. The dynamic speed can be changed by changing the speed control means of the variable speed motor, and furthermore, the speed control means operates in conjunction with the running speed detecting means to drive the front and rear and left and right swing speeds of the nozzle. It becomes possible to swing in proportion to the speed. Next, an embodiment will be described with reference to the drawings. 1 is a rear view showing a nozzle swing mechanism of a self-propelled pest control device, FIG. 2 is a side view thereof, and FIG. 3 is a skeleton diagram of a mechanism using an axle of a traveling unit as a driving source for nozzle swing. 4 is a control block plan view of a mechanism that uses a variable motor as a driving source for the swinging of the nozzle and links the swinging speed with the vehicle speed, and FIG. 5 is a side view of the self-propelled control device. The self-propelled pest control machine has a spraying machine B mounted on a traveling section A. First, in FIG. 5, the traveling portion A is composed of a crawler traveling device 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 21c are provided at a lower center.
Are arranged, and a track band 21d is wound around the idler wheel 21a, the drive wheel 21b, the idler rollers 21c, 21c,.
It is supported by a more protruding axle 34. 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 at the center of the front frame 23, and a seat 25 is provided at the center of the rear of the front frame 23.
An operation column 26 is erected at the center of the front end, and a steering operation lever 26a is protruded above the operation column 26. Next, the spraying machine B will be described. The spraying machine B includes a medicine tank 28, an engine E, a power sprayer (not shown),
, The medicine tank 28 is arranged behind the seat 25, and the canopy 27 projects forward from the medicine tank 28 above the seat 25 so as to prevent the shaded and sprayed medicine from being applied. At the rear of the chemical tank 28, the engine E and the power sprayer are mounted in the left-right direction, covered by a cover 29, and the base of the nozzle 1 is also covered by a cover 30.
, And can be opened independently independently of each other. Further, the engine E drives the driving wheels 21b via the transmission case to drive the crawler type traveling device 21, and at the same time, also drives the power sprayer, and the power sprayer removes the medicine from the medicine tank 28. It is configured to suck and spray from the nozzles 1, 1,... Of the spraying section N. The spray operation panel 8 is located on the left side of the seat 25.
2 is provided so that the start / stop of spraying and the discharge amount can be adjusted. Next, a nozzle swing speed adjusting mechanism of the self-propelled pest control device of the present invention will be described. 1 and 2, a plurality of nozzles 1, 1... Are arranged in a fan shape when viewed from the front, and are erected on the upper surface of the nozzle set tables 2, 2,. .. Have a circular arc shape in rear view, and are arranged concentrically with the nozzles 1, 1. First, the back-and-forth swing mechanism of the nozzles 1,... Will be described. In the center of the lower surface of the nozzle set table 2, the nozzle links 4.4 are parallel to the front and rear positions via a fixing member 2 a at the center side ( (A left-right rotation shaft 7 direction), and a nozzle rotation stay 9 is fixed to the front side. 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 left-right rotation mechanism of the nozzles 1 will be described. A nozzle rotation shaft 11 is supported on the nozzle rotation stay 9 in the left-right direction. The nozzle rotation shaft 11 is rotatably supported by a shaft support portion 13 b of a pedestal 13. Is fixed to the tip of a connecting arm 13a which is bent upright on the pedestal 13 in an inverted L-shape. The pedestal 13 is attached and fixed to the nozzle support frame 10.
Reference numeral 0 denotes a substantially trapezoidal shape when viewed from the rear, and pedestals 13, 13, 13 are attached and fixed to the upper surface and the left and right inclined surfaces, and the nozzle set table 2,
Each of the nozzles 2 and 2 is provided with the nozzles 1.1.1 as a set of three nozzles to form the spraying section N, so that the middle spraying section N1, the right spraying section N2, and the left spraying section N3 are divided into three. And the nozzles 1.1 of the spray units N1, N2, N3
.. Can be arranged in a fan shape above the oscillating link 3. In this embodiment, the nozzles 1, 1... Are divided into three as a set of three nozzles, and are divided into a middle spray portion N1, a right spray portion N2, and a right spray portion N3.
However, the numbers of the nozzles 1 and the spray units N are 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 pivotally supported via a shaft support 14 a fixedly provided on the upper surface of the rotation support table 14, and the rotation support table 14 is positioned at the front center upper surface of the nozzle set table 20. It is attached and fixed. A pivot shaft 5a is projected rearward from a lower end portion of a rear longitudinal portion of the left-right rotation stay 5, and the pivot shaft 5a is provided at one end of a link plate 15. It is pivotally supported by the support 15a. A pivot 15b is provided at the other end of the link plate 15, and an eccentric shaft Mb connected to a drive shaft Ma of the motor M is pivotally supported. In this embodiment, a variable rotation speed motor capable of adjusting the rotation speed of the motor is employed as the motor M. 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 4.4 swing back and forth, and the nozzles 1.1 of the nozzle N with the nozzle rotation shaft 11 as a fulcrum.
・ ・ Sways back and forth. The motor M is a variable rotation speed motor, and the rotation speed of the motor M is changed in accordance with the working condition so that the swing speed of the nozzles 1,. Make up. That is, as shown in FIG.
The motor M is connected via a drive circuit D to a controller C as rotation speed control means. The controller C is connected to a speed adjustment dial 37 as speed adjustment means and a vehicle speed sensor S as travel speed detection means. S is disposed on the axle 34 (or at a stage prior to deceleration in the transmission case 33). Therefore, the operator can arbitrarily change the speed by using the speed adjusting dial 37. The speed is detected by the vehicle speed sensor S, the signal is input to the controller C, and the speed is adjusted to the vehicle speed by the controller C. It is also possible to calculate the number of revolutions and output it to a drive circuit D, which drives the motor M to swing the nozzles 1,... In proportion to the vehicle speed. Another driving mechanism is shown in FIG.
I have. The bevel gear 31 is fixed to the axle 34, and the bevel gear 32 is meshed with the bevel gear 31, and the bevel gear 3
The second shaft is inserted into the speed change mechanism G to reduce or increase the speed, and the other end of the output shaft 35 of the speed change mechanism G is fixed to a rotary plate 36 having the eccentric shaft Mb fixed thereto. More link plate 1
5 is cranked to swing the nozzle. Therefore,
The nozzles 1, 1... Swing in proportion to the traveling speed. The present invention is configured as described above, and has the following effects. That is, by spraying the agent to the fruit tree by swinging the nozzle arranged in a fan shape back and forth and left and right, it is possible to enhance the adhesion performance of the agent to the fruit tree,
In addition, the swing speed of the nozzle can be adjusted arbitrarily, and the nozzle can be swung in proportion to the running speed. By changing the rocking speed in proportion, it is possible to further reduce the unevenness in spraying the medicine.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear view showing a nozzle swing mechanism of a self-propelled control device. FIG. 2 is also a side view. FIG. 3 is a skeleton diagram of a mechanism that uses an axle of a traveling unit as a driving source of nozzle oscillation. FIG. 4 is a control block diagram of a mechanism in which a variable motor is used as a driving source for oscillating a nozzle and an oscillating speed is linked to a vehicle speed. FIG. 5 is a side view of the self-propelled control device. [Description of Signs] B Spraying work machine C Controller E Engine G Transmission mechanism M Motor N Spraying unit 1 Nozzle 2 Nozzle set table 3 Swing link 4 Nozzle link 5 Left-right rotating stay 7 Left-right rotating shaft 8 Front-rear rotating shaft 9 Nozzle rotating stay 10 Nozzle support frame 11 Nozzle rotating shaft 15 Link plate 16 Joint 34 Axle

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-91433 (JP, A) JP-A-5-13569 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01M 7/00

Claims (1)

(57) [Claim 1] In a self-propelled pest controller, a plurality of nozzles 1
Are arranged in a fan shape in rear view, and the nozzle 1 is attached thereto.
Connect the set base 2 to the front and rear and left and right swing mechanism, and
And a swing mechanism for swinging back and forth and left and right.
Is a single variable speed motor M,
By rotating the eccentric shaft Mb of the variable number motor M,
The plate 15 is configured to swing left and right.
The left and right rotation stays 5 swing right and left, and the left and right rotation
The nozzle support frame 10 is swung right and left by the tab 5.
The nozzle 1 supported by the nozzle support frame 10
And configured to swing, also provided a joint 16 which is connected to the link plate 15,
The joint 16 swings around the pivot shaft 8 as a fulcrum.
The link 3 is rocked back and forth, and the rocking link 3
The nozzle link 4 provided on the support frame 10 back and forth.
The nozzle 1 supported by the nozzle link 4 is moved
It is configured to swing back and forth with the rotation shaft 11 as a fulcrum, and the one rotation speed variable type motor M is provided with rotation speed control means.
Connected and the operator controls the speed dial 37.
Speed can be changed at will and the rotation speed control means
Connected to the line speed detection means, the nozzle in proportion to the traveling speed
A swinging speed adjusting mechanism for a nozzle of a self-propelled pest control machine, wherein the speed of swinging back and forth and right and left of the set table 2 can be adjusted.