JPH02268858A - Chemical sprayer - Google Patents

Abstract

PURPOSE:To uniformly spray the chemicals of a required quantity and to carry out an operation with ease by providing an actuator which drives a driving mechanism in synchronization with the traveling speed of a machine body in accordance with the signal from a sensing mechanism. CONSTITUTION:A 1st switch 33 which is operated by a cam body 32 is provided near the cam body 32 and a 2nd switch 36 to be operated to turn on when an operating lever 35 of a transplanting clutch 34 to start and stop a seedling transplanting device is operated to an engagement position is provided. A main switch 38, the 2nd switch 36, the 1st switch 33 and anelectromagnetic solenoid 27 are connected in series to a power source 37. The electromagnetic solenoid 27 is then intermittently energized in synchronization with the traveling speed of the machine body when the machine body is driven to travel at the time of the operation. As a result, the delivery mechanism D is driven at the speed synchronized with the traveling speed of the machine body to uniformly spray the chemicals. The cam body 32 and the 1st switch 33 are termed in combination as the sensing mechanism S.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a chemical spraying device, and more particularly, to a device for spraying a chemical onto a field or field.

[Conventional technology]

Taking a sprayer as an example of a conventional chemical dispersion device,
Devices for spraying chemicals on fields or farmland are equipped with a tank for storing liquid chemicals, a nozzle for spraying chemicals, etc. When spraying chemicals, workers carry the tank on their backs, etc. They enter fields, etc. and carry out work.

It should be noted that in order to spray granular chemicals such as herbicides, there is no suitable equipment such as the above-mentioned sprayer, and workers enter fields etc. during work and spray the chemicals manually.

[Problem to be solved by the invention]

However, as mentioned above, even when a sprayer is used, the worker must enter the field and walk on foot to spray the chemicals, which tends to result in uneven distribution of the chemicals. Moreover, there is room for improvement since it leads to forcing workers to do heavy labor.

Also, to explain about herbicides, herbicides are substances that have the effect of inhibiting the growth of plants, so if you spray too much, it will not only hinder the growth of weeds but also seedlings. If the amount is too small, it may not be effective in weeding, so we need a technique that allows the chemical to be evenly distributed over the entire surface of the field without putting a heavy burden on the worker. desired.

The purpose of the present invention is to provide a rational device that can uniformly spray the required amount of chemicals to the field even when spraying chemicals on a large field or field, and that allows the operator to do the work easily. The main point is that it is structured in a specific manner.

[Means to solve the problem]

A feature of the present invention is that it is equipped with a feeding mechanism that delivers a predetermined amount of medicine from the storage section by being driven by a predetermined amount, and also receives a signal synchronized with the drive speed of the drive system based on the drive speed of the drive system of the aircraft body. It is equipped with a sensing mechanism for taking out the feed, and an actuator that drives the feeding mechanism in synchronization with the traveling speed of the aircraft based on the signal from the sensing mechanism, and its functions and effects are as follows. It is.

[Function] When the above characteristics are configured as shown in FIGS. 1 and 2, for example, by running the machine body (4) during work, the feeding mechanism (D) is operated in a proportional relationship synchronized with the running speed.
is driven, so even if the traveling speed is adjusted high or low, the amount of chemical sprayed per unit traveling distance can be maintained at a predetermined amount.
Moreover, during this work, the operator only needs to perform the work of controlling the traveling direction of the machine body (4).

In other words, unlike conventional chemical spraying in which the amount of chemical sprayed is adjusted manually by the operator, the chemical (17) is sprayed based on the distance traveled by the aircraft (4), so the amount per unit area is The amount of chemical sprayed can be maintained with high accuracy, and the storage part (18) and delivery mechanism (D
) and an actuator (27), there is no need for the operator to carry out spraying operations as in the past, and there is no need for the operator to walk around the field carrying the medicine.

〔Effect of the invention〕

Therefore, even when spraying chemicals on a large field or farmland, it is necessary to have a rationally constructed device that can uniformly spray the required amount of chemicals on the field, etc., and that allows the operator to do the work easily. It is.

〔Example〕

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

As shown in Figure 2, a pair of left and right front and rear wheels (1), (2
) and a seedling planting device (A) connected to the rear end of a traveling body (4) having a driver's seat (3) via a link mechanism (6) that is raised and lowered by the operation of a hydraulic cylinder (5). Configure a type of rice transplanter.

As shown in the same figure and FIG. 3, the seedling planting device (A) has a transmission case (
7), three chain cases (8)... and a seedling stand (
9), a pair of planting arms (11) provided for each rotating case (10) driven by the power of this chain case (8), (11), and three soil leveling flows) (12) The seedling planting device (8) includes a fertilizing device (B) that supplies fertilizer to the field at the same time as seedling planting, and a seedling planting device (B) that supplies fertilizer to the field at the same time as seedling planting. At the same time, it is equipped with a chemical spraying device (C) that sprays herbicide onto the field.

In addition, the fertilizer application device (B) has a feeding section (
14), a guide hose (15), and a groove cutter (16).

Further, as shown in FIGS. 3 to 8, the drug dispersing device (C) includes a hopper (18) serving as a storage section for storing the drug (I7), and a device that sends out the drug (17) in the hopper. A feeding mechanism (D), a rotating body (19) that diffuses the drug (17) from the feeding mechanism (D), and a guide member (20) that averages out the spread drug (17) and sends it to the field side. Further, as shown in FIG. 6, the feeding mechanism (D) feeds the granular chemical (17) (herbicide) from the guide tube (21) provided at the bottom of the hopper (18). A receiver is placed inside the opening (22a), and the rotating body (19) is
The disk material (22) that is sent out and this disk material (2
2) and a drive unit that rotates the motor.

Further, this drive unit is connected to an arm (2) provided on a support shaft (24) of a disk material (22) via a one-way clutch (25).
6), an electromagnetic solenoid (27) (an example of an actuator) whose plunger portion (27a) is connected to the arm (26), and a spring (28) for restoring the arm (26). Electromagnetic solenoid (27) L,
By intermittently energizing the disc material (22)
The medicine (17) is delivered by rotating the medicine (17).

This rice transplanter also ensures uniform chemical spraying.
It has a system that drives the feeding mechanism (D) at a speed that is synchronized with the traveling speed of the aircraft body (4).

That is, as shown in Figures 1 and 2, the transmission shaft (31) that transmits power from the mission case (29) at the front of the aircraft to the transmission case (30) of the rear wheel (2) has a cam body (3
2) is provided, and this cam body (32) provides 0N-OF
A first switch (33) to be operated is provided near the cam body (32), and an operating lever (35) of a planting clutch (34) for driving and stopping the seedling planting device (A) is provided.
) is operated to the "on" position, a second switch (36) is provided, which is operated to turn on the power supply (37), and the main switch (38), the second switch (36), and the second switch (36). By connecting the 1 switch (33) and the electromagnetic solenoid (27) in series, you can use the planting clutch (34) during work.
When the aircraft (4) is run while the machine is engaged and operated, the electromagnetic solenoid (27) is intermittently energized in synchronization with the running speed, and as a result, the aircraft (4)
By driving the dispensing mechanism (D) at a speed synchronized with the traveling speed in step 4), uniform chemical spraying is performed.

Incidentally, the cam body (32) and the first switch (33) are collectively referred to as a sensing mechanism (S).

Further, the rotating body (19) has a wing body (19a) for diffusing the drug (17), and an electric motor (39).
The guide member (20) is shaped like a box that opens downward.

[Another Embodiment] In addition to the embodiments described above, the present invention includes, for example, a sensing mechanism configured with a non-contact rotation sensor, a feeding mechanism configured with a roll material driven around a horizontal axis, and Various implementations are possible, such as configuring the actuator with a pulse motor.

Further, the present invention can also be implemented by using a constant displacement pump as the feeding mechanism and a synchronous motor as the actuator in order to spray the liquid medicine.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the drug dispersion device according to the present invention, and the first embodiment
The figure is a block circuit diagram of the drive system of the feeding mechanism, Figure 2 is an overall side view of the rice transplanter, Figure 3 is a side view of the seedling planting device, chemical spraying device, etc., and Figure 4 is the seedling planting device, chemical agent, etc. A back view of the spraying device, etc.; Figure 5 is a plan view of the seedling planting device, chemical spraying device, etc.;
Figure 6 is a sectional view of the feeding mechanism, and Figure 7 is from ■-■ in Figure 6.
8 is a sectional view taken along the line ■--■ in FIG. 6. (4)... Aircraft, (17)... Drug,
(18)...Reservoir, (27)...Actuator, (D)...Feeding mechanism, (
S)...Sensing mechanism.

Claims (1)

[Claims] By being driven by a predetermined amount, the drug (
17) by a predetermined amount, and based on the drive speed of the traveling system of the aircraft (4),
A sensing mechanism (S) that outputs a signal synchronized with the driving speed of the traveling system, and based on the signal from this sensing mechanism (S), the feeding mechanism (D) is activated in synchronization with the traveling speed of the aircraft body (4). A drug dispersion device comprising an actuator (27) for driving.