JPH10248468A - Structure for vertical movement of atomization nozzle of liquid chemical spraying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical moving device for an atomization nozzle capable of linking the drive of a liquid chemical pump and the vertical movement of an atomization nozzle, adjusting the vertical movement width and position of the nozzle and adjusting the atomizing direction of liquid further. SOLUTION: A driving belt 11 for transmitting driving power by being tensed by the press contact of a tension roller 10 is hung between a first driving pulley 8 and a second driving pulley 9. A linking belt 20 is hung between a first linking pulley 18 fixed on the same axis as the second driving pulley 9 and a second linking pulley 19 loosely fitted to the driving shaft 3a of a prime mover. The rear end part 22a of a wire 22 is connected to the eccentric position of the second linking pulley 19, the tip part 22b of the wire is connected from an upper part to the suitable position of an atomization nozzle rod supporting member 28 freely vertically provided on a guide support 27, the plural connection parts 23 of the rear end part of the wire 22 are constituted at the eccentric position of the side face of the second linking pulley 19 preferably and the tip part of the wire 22 is freely attachably and detachably connected to the atomization nozzle rod supporting member 28. The lower end direction of an atomization nozzle rod 36 is constituted so as to be freely moved and fixed to an outer side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to spraying a liquid such as a disinfectant solution, a liquid fertilizer or water (hereinafter referred to as "chemical solution") while traveling in a furrow of a vegetable or the like cultivated in a garden house or the like. The present invention relates to a spray nozzle vertical movement structure of a chemical spraying device.

[0002]

2. Description of the Related Art Conventionally, as described above, a chemical spraying apparatus for spraying a chemical while traveling in a furrow of vegetables or the like cultivated in a horticultural house or the like has already been provided. In these chemical spraying apparatuses, the spray nozzles of the chemical are moved up and down while moving the spray nozzle up and down in order to improve the spraying efficiency.

Conventionally, a loop chain, a parallel crank, a link mechanism, a cam mechanism, and the like have been used for the vertical movement of the chemical liquid spray nozzle.

[0004]

According to the present invention, the driving of the chemical pump and the vertical movement of the spray nozzle are mechanically linked, and the vertical movement width and the vertical movement position of the spray nozzle are adjusted in accordance with the growing vegetables and the like. It is another object of the present invention to provide a spray nozzle vertically moving structure of a chemical liquid spraying apparatus having a simple structure capable of adjusting a spray direction of a chemical liquid.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a method in which a first drive pulley fixed to a drive shaft of a motor and a second drive pulley fixed to a drive shaft of a chemical pump. A drive belt that is tensioned by the pressure contact of the tension roller to transmit power is stretched over, and is loosely fitted to a first interlock pulley coaxially fixed to the second drive pulley and a drive shaft of the motor. The interlocking belt is stretched between the second interlocking pulleys, the rear end of the wire is connected to the eccentric position of the side surface of the second interlocking pulley, and the front end of the wire is provided on the guide support so as to be vertically movable. The spray nozzle rod support portion is connected from above to an appropriate position.

More preferably, a plurality of connecting portions at the rear end of the wire are formed at eccentric positions on the side surface of the second interlocking pulley so that the vertical movement width of the spray nozzle can be adjusted. The tip end of the spray nozzle rod support member is configured to be detachable so that the vertical movement position of the spray nozzle can be adjusted, and furthermore, the spray nozzle rod support member attached to the spray nozzle rod support member can be adjusted. The lower end direction is configured to be movable and fixed to the outside so that the spray direction of the chemical solution or the like by the spray nozzle can be adjusted.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side perspective view of an example of a chemical spraying device equipped with the spray nozzle vertical movement structure of the present invention, FIG. 2 is a partially omitted side view of the spray nozzle vertical movement part of FIG. 1, and FIG. 3 is a part of FIG. FIG. 4 is an enlarged view, FIG. 4 is a partially omitted front view of the spray nozzle section, and FIG. 5 is a rear perspective view of the spray nozzle section.

In the illustrated embodiment, the chemical spraying device is of a self-propelled crawler type. A chemical liquid tank 1 is provided at a substantially central portion of a machine body B, a spray nozzle portion 2 constituting the present invention is provided at a front portion, and a prime mover is provided at a rear portion. For example, an air-cooled four-cycle internal combustion engine 3, a chemical pump 4, such as a multiple plunger pump,
A drive control device 7 for the spray nozzle unit 2 is provided together with a handle 5, a spray operation lever 6, a traveling operation lever, a fuel tank, and the like (not shown).

First, the drive control device 7 for the spray nozzle unit 2 will be described with reference to FIG. That is, the engine 3
A first driving pulley 8 having a relatively small diameter is fixedly mounted on the driving shaft 3a, and a second driving pulley 9 having a diameter twice as large as the first driving pulley 8 is fixedly mounted on the driving shaft 4a of the chemical liquid pump 4. Is done.

A drive belt 11 is loosely stretched between the first drive pulley 8 and the second drive pulley 9, and the tension roller 10 is pressed against the drive belt 11 by operating the spray operation lever 6. By nervous,
Power is transmitted from the first drive pulley 8 on the engine 3 side to the second drive pulley 9 on the chemical liquid pump 4 side.

The pressing and releasing of the tension roller 10 is performed by the spray operation lever 6 provided on the handle 5. One example is shown in FIG.

That is, the base end of a swing lever 12 having the tension roller 10 rotatably provided at the swing end thereof is swingably supported on the machine body B side by a pivot pin 13, and the swing lever 12 The lower end of the interlocking rod 14 is connected to a suitable position in the middle in the longitudinal direction by a pivot pin 15, and the upper end of the interlocking rod 14 is connected to the spray operation lever 6 via a spring 16 as necessary.

The tension roller 10 can be pressed against the drive belt 11 or released by turning on and off the spray operation lever 6. In the drawing, reference numeral 17 denotes a return spring for the swing lever 12 and the tension roller 10.

Further, a small-diameter first interlock pulley 18 is fixedly mounted coaxially with the second drive pulley 9 fixedly mounted on the drive shaft 4a of the chemical liquid pump 4, and further provided on the drive shaft 3a of the engine 3. Then, a second interlock pulley 19 having a diameter approximately three times that of the first interlock pulley 18 is loosely fitted.

That is, the second interlocking pulley 19 is loosely fitted to the drive shaft 3a of the engine 3, and is driven from the chemical pump 4 side independently of the drive shaft 3a. An interlock belt 20 is stretched between the interlock pulley 19 and the first interlock pulley 18. In the figure,
21 is a tension roller of the interlock belt 20.

Further, a flexible stainless steel wire 22 is provided at an eccentric position near the outer periphery of the second interlocking pulley 19.
The rear end 22a (hereinafter, simply referred to as "wire 22") is connected. In the illustrated embodiment, the second interlocking pulley 19
An adjustment plate 24 having an appropriate number of wire connection holes 23 with different effective radii from the center 3a is fixed to a position near the outer periphery deviated from the center of the side surface (the drive shaft 3a of the engine 3). , The wire connecting hole 23 of the adjusting plate 24
Is configured as a connecting portion of the rear end 22a of the wire 22.

The mounting direction of the adjusting plate 24 is as follows.
The present invention is not limited to the state shown in the drawing, and may be simply attached radially from the center 3a. The point is that the rear end portion 22a of the wire 22 can be connected to any position in the outer peripheral direction from the center 3a of the second interlocking pulley 19 in order.

According to the above construction, when the rear end portion 22a of the wire 22 is connected near the center of the second interlocking pulley 19, the vertical stroke of the wire 22 accompanying the rotation of the second interlocking pulley 19 is reduced. When the rear end portion 22a of the wire 22 is connected near the outer periphery distant from the center of the second interlock pulley 19, the wire 2
2, the vertical stroke becomes large.

Therefore, the vertical movement width of the spray nozzle rod support member 28 described later can be adjusted to match the height of the cultivated vegetables and the like. The adjustment plate 24 having the appropriate number of connection holes 23 is not limited to the side surface of the second interlocking pulley 19, and may be projected from the outer periphery of the second interlocking pulley 19 in the radial direction. In this case, the vertical stroke of the wire 22 can be further increased.

The wire 22 is guided above the machine body B, and is positioned at an appropriate position on a spray nozzle rod support member 28 described later that moves up and down along the guide column 27 from the upper end of the guide column 27 described later. Connected from above. In the figure, 25 is a guide roller, 26 is a guide and protection cover for the wire 22, and also functions as a reinforcing stay for the guide column 27.

Next, the spray nozzle unit 2 will be described. The spray nozzle portion 2 is provided with the guide column 27 provided upright at the front of the body B, and the spray nozzle rod support member 28 provided on the guide column 27 so as to be vertically movable.
And

A specific example is shown in FIGS. That is, the guide column 27 is composed of two left and right guide rods 27a and 27 arranged in the up-down direction in parallel with each other.
The guide rollers 29, 29, 29, 29 are arranged at appropriate intervals above and below the outer sides of the respective guide rods 27a and between the two guide rods 27a, 27a. , 29 and both guide rods 27
a, the guide rollers 29 are rotatably supported in the front and rear directions, and the support plates 3 are moved back and forth so as to move up and down integrally by sandwiching the two guide rods 27a from the front and rear.
The spray nozzle rod support member 28 is provided with 0 and 30 provided.

The spray nozzle rod support member 28 having the above-described structure is
It can move up and down along a guide column 27 composed of the two guide rods 27a, 27a, and a tip 22b of the wire 22 is connected to an appropriate position from above. That is, in the illustrated embodiment, a pulley 31 is provided at the upper end of the guide column 27, an extension of the wire 22 is hung on the pulley 31, and the pulley 31 is guided downward. It is detachably connected to a wire fixing portion 32 provided on the back support plate 30.

As shown in FIG. 3, the wire fixing part 32 shown in the illustrated embodiment has a male screw rod 33 and the male screw rod 3.
3, the tip 22b of the wire 22 is wound around the male screw rod 33, and the like.
It is configured so that it can be easily removed by tightening with the nut 34 and firmly connecting it, and by loosening the nut 34. However, the wire fixing portion 32 can be easily changed to another configuration.

According to the above configuration, the vertical movement position of the spray nozzle rod support member 28 can be easily adjusted according to the required height of cultivated vegetables and the like.
That is, if the spray nozzle rod support member 28 is positioned at the required height of the guide column 27 and the tip 22b of the wire 22 is connected to the wire fixing portion 32, the position is determined as a reference. Thus, the spray nozzle rod support member 28 can be moved up and down.

Next, on the left and right sides of the spray nozzle rod support member 28, an appropriate number of spray nozzles 35 are attached at appropriate intervals in the vertical direction, and further, a spray nozzle rod connected with a chemical hose H at an appropriate position. 36, 36 are attached. In the illustrated embodiment, the spray nozzle rods 36, 36 are provided on both left and right sides of the spray nozzle rod support member 28, respectively, and the lower ends thereof are configured to be movable outward and fixed.

That is, the spray nozzle rod support member 28
A horizontal rail 37 is provided at the upper end of the horizontal rail 37.
The spray nozzle rods 36 are attached to the outside of the respective tilting rods 39 in parallel with each other at the positions 8 and 38.

Further, an adjusting plate 41 having an appropriate number of adjusting holes 40 at predetermined intervals in the vertical direction is extended in the lower center of the spray nozzle rod supporting member 28, and the adjusting holes 40 at appropriate positions of the adjusting plate 41 are extended. The upper ends of two right and left expanding rods 42, 42 are detachably fastened to the part by bolts 43, and the lower ends of the two expanding rods 42, 42 are respectively attached to the tilting rods 39, 42.
At the lower end of 39, it is fastened by shafts (bolts) 44,44. In the drawing, reference numeral 45 denotes a return spring of the spray nozzle rod support member 28.

According to the above configuration, the bolts 43 and the like are removed, and the upper ends of the expanding rods 42 are moved to any one of the adjusting holes 40 located below the adjusting plate 41 to be fixed. For example, the lower ends of the expanding rods 42, 42 are moved inward or outward, respectively, and at the same time, the tilting rods 39,
The lower ends of the spray nozzle rods 39 and the spray nozzle rods 36 are also moved outward.

That is, as shown by the imaginary line in FIG. 4, for example, the two spray nozzle rods 36, 36 have a C-shape, and the spray nozzles 35 face upward. as a result,
For example, a chemical solution can be sprayed slightly upward on cultivated vegetables and the like, and the chemical solution can be more effectively sprayed on the back of leaves and the like of the vegetables and the like.

In order to carry out the work in the above embodiment, the engine 3 is started, the body B is moved to the ridge, etc.
Operate the spray operation lever 6 to operate the tension roller 1
0 is pressed against the drive belt 11.

As a result, the drive belt 11 is tensioned, and power is transmitted to the second drive pulley 9 fixed to the drive shaft 4 a of the chemical pump 4, so that the chemical pump 4 is moved about the drive shaft 3 a of the engine 3. It is driven at half the rotation speed, and the second interlocking pulley 19 is moved on the driving shaft 3a of the engine 3 by the first interlocking pulley 18 and the interlocking belt 20 fixed to the driving shaft 4a of the chemical pump 4. It is rotated at one sixth the rotation speed.

When the second interlocking pulley 19 is rotated,
The wire 22 connected to the eccentric position is moved up and down, and the spray nozzle rod support member 28 connected to the tip 22b repeats up and down movement along the guide column 27, and is attached to the spray nozzle rod support member 28. The spray nozzle rods 36, 36 and the spray nozzle 35 are moved up and down integrally to spray the chemical solution.

Further, when adjusting the vertical movement width of the spray nozzle 35, as described above, the second interlocking pulley 1
It is sufficient to adjust the connection position of the rear end portion 22a of the wire 22 with respect to the wire 9; when adjusting the vertical movement reference position, the material of the spray nozzle rod holding member 28 is positioned at a desired height on the guide column 27 After that, the spray nozzle rod holding member 28
The tip portion 22b of the wire 22 may be connected to the wire fixing portion 32.

Further, when the spray direction of the chemical solution is upward, as described above, the spray nozzle rod support member 2 is used.
By moving the fastening positions of the upper ends of the expanding rods 42, 42 downward with respect to 8, the tilting rods 39, 39, that is, the lower end directions of the spray nozzle rods 36, 36 are moved outward, and as a result, the spray The nozzle 35 faces upward, and upward spraying of a chemical solution or the like becomes possible.

[0036]

According to the first aspect of the present invention having the above structure,
The drive of the chemical pump and the vertical movement of the spray nozzle are mechanically and reliably linked with a simple configuration. According to claim 2, the vertical movement width of the spray nozzle can be easily adjusted, for example, in accordance with growing vegetables and the like. According to the third aspect, the vertical movement position of the spray nozzle can be adjusted.
According to this, the effect of changing and adjusting the spray direction of the chemical solution or the like is obtained.

[Brief description of the drawings]

FIG. 1 is a side perspective view of an example of a chemical spraying device equipped with a spray nozzle vertical movement structure of the present invention.

FIG. 2 is a partially omitted side view of the spray nozzle vertical movement structure of FIG.

FIG. 3 is a partially enlarged view of FIG. 2;

FIG. 4 is a partially omitted front view of a spray nozzle unit.

FIG. 5 is a rear perspective view of a spray nozzle unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 prime mover 3a prime mover drive shaft 4 chemical liquid pump 8 first drive pulley 9 second drive pulley 10 tension roller 11 drive belt 18 first interlocking pulley 19 second interlocking pulley 20 interlocking belt 22 wire 22a rear end of wire 22b wire 23 Tip of wire 23 Connection part of wire 27 Guide support 28 Spray nozzle rod support member 36 Spray nozzle rod

Claims (4)

[Claims] A first drive pulley (8) fixed to a drive shaft (3a) of a motor (3) and a second drive pulley (9) fixed to a drive shaft (4a) of a chemical pump (4). ), A drive belt (11), which is tensed by the pressure contact of the tension roller (10) to transmit power, is stretched, and is further coaxially fixed with the second drive pulley (9). Pulley (18) and drive shaft (3a) of the prime mover (3)
An interlocking belt (20) is stretched between second interlocking pulleys (19) loosely fitted to the rear end of the wire (22) at an eccentric position of the second interlocking pulley (19). And a tip (22b) of the wire (22).
Is connected from above to an appropriate position of a spray nozzle rod support member (28) provided on the guide column (27) so as to be vertically movable, the spray nozzle vertical movement structure of the chemical liquid spraying device. 2. A plurality of connecting portions (23) of a rear end portion (22a) of the wire (22) are formed at an eccentric position on a side surface of the second interlocking pulley (19). 2. A spray nozzle vertical movement structure of the chemical liquid spraying device according to 1. 3. A tip (22b) of the wire (22).
The spray nozzle vertical movement structure of the chemical liquid spraying device according to claim 1 or 2, wherein the spray nozzle is detachably connected to the spray nozzle rod support member (28). 4. The chemical solution according to claim 1, wherein a lower end of the spray nozzle rod (36) attached to the spray nozzle rod support member (28) is configured to be movable outward and freely fixable. Spray nozzle up and down movement structure of spraying device.