JP2001300374A - Liquid chemical spraying device for riding tending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid chemical spraying device for a riding tending machine, which is capable of precisely controlling the liquid quantity in a liquid chemical tank. SOLUTION: The liquid chemical spray device is mounted in a riding tending machine and the liquid quantity in the liquid chemical tank 3 is detected by providing a pressure sensor 4 on the bottom of the liquid chemical tank 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical spraying device for a riding management machine to be mounted on a riding management machine.

[0002]

2. Description of the Related Art Conventionally, chemical spraying devices such as a speed sprayer and a boom sprayer are well known, and there are a device mounted on a riding control device such as a tractor and a self-propelled device. The conventional chemical liquid spraying device detects the liquid level on the liquid surface as a means for detecting the liquid amount in the chemical liquid tank, but the detection accuracy is poor because the liquid level on the liquid surface fluctuates greatly due to vibration and shaking of the apparatus. There is a disadvantage that. In addition, since the gauge of the liquid in the chemical tank is located behind the driver's seat, it is not clear unless the operator has to check it visually. is there. In addition, if there is no means capable of detecting a spray amount per unit area or a chemical solution amount according to the spray area, wasteful use of a chemical solution is likely to occur, and furthermore, a problem of environmental pollution due to discharge may occur.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a chemical spraying apparatus for a riding management machine capable of accurately detecting a liquid amount in a chemical tank. Is to provide. Another object of the present invention is to provide a chemical dispensing device for a passenger management machine that can perform an efficient operation by notifying a preset remaining amount of a chemical solution. Another object of the present invention is to provide a chemical dispensing device for a passenger management machine that can detect a liquid amount according to a work plan by notifying that the injection amount is a preset injection amount. Still another object is to provide a chemical spraying device for a passenger management machine, which can display a chemical liquid amount according to a work plan and can improve operability by eliminating waste.

[0004]

In order to achieve the above object, a first aspect of the present invention is a chemical spraying device mounted on a passenger management machine, wherein a pressure sensor is provided at the bottom of the chemical tank to measure the amount of the liquid in the chemical tank. It is a chemical spraying device for a riding management machine to be detected. According to a second aspect of the present invention, there is provided a chemical spraying device mounted on a passenger management machine, comprising a means for detecting a remaining amount of liquid in a chemical tank and notifying that the remaining amount of liquid is equal to or less than a set amount. Device. According to a third aspect of the present invention, in the chemical spraying device mounted on the riding management machine, a means for detecting a liquid amount in the chemical liquid tank and informing that the liquid amount reaches a set amount when the chemical liquid is injected into the chemical liquid tank is provided. It is a chemical spraying device for a riding management machine. Furthermore, a fourth aspect of the present invention is directed to a chemical liquid spraying device mounted on a riding management device, comprising a means for displaying a chemical solution amount and a water amount required for spraying from input values of spraying conditions.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a riding management machine 1 equipped with a chemical spraying device, which is provided with a chemical tank 3 behind a driver's seat 2. FIG. 2 is a vertical cross-sectional view of the chemical liquid tank 3. A pressure sensor 4 is provided at the bottom of the chemical liquid tank 3 to detect the amount of liquid in the chemical liquid tank 3. The relationship between the sensor value (voltage) of the pressure sensor 4 and the amount of liquid in the chemical liquid tank 3 has a one-to-one correspondence, for example, as shown in FIG.

Since the surface water level of the chemical 5 in the chemical tank 3 fluctuates greatly due to the vibration of the machine and the shaking during work traveling as shown in FIG. In the method of detecting the liquid amount in the chemical liquid tank 3 based on the surface water level, the detection accuracy is very poor. On the other hand, in the present embodiment, since the liquid amount is detected by the pressure sensor 4 provided at the bottom of the chemical liquid tank 3, the liquid amount in the chemical liquid tank 3 is hardly affected by the above-mentioned vibration and shaking. It can be detected with high accuracy.

FIGS. 4 and 5 show another embodiment of the present invention, which is a block diagram and a control flowchart of the remaining amount detecting means, respectively. In the present embodiment, the chemical solution tank 3
The remaining amount of liquid in the inside is measured, and it is notified that the remaining amount becomes equal to or less than a preset amount. As shown in FIG.
Is connected to the remaining amount setting value input means and the liquid amount sensor, and the output side is connected to the notifying means. Then, as shown in the flow of FIG. 5, a preset remaining amount setting value is read, and the liquid amount in the chemical liquid tank is measured by the liquid amount sensor. When the remaining amount of liquid becomes equal to or less than the above-mentioned remaining amount setting value, a notification is made.

In this case, the above-mentioned pressure sensor is used as the liquid amount sensor and is installed at the bottom of the chemical liquid tank 3. The notification means includes a buzzer, lighting of a lamp, and the like. Further, the set value of the remaining amount can be set arbitrarily. Usually, an appropriate remaining amount is set at the notification stage so as not to hinder the subsequent work setup. As described above, in the present embodiment, the operator is notified that the liquid remaining amount is set in advance, so that the operator does not need to perform the operation while paying attention to the liquid remaining amount in the tank, and can perform an efficient operation. .

FIGS. 6 and 7 show another embodiment of the present invention, and are a block diagram and a control flowchart of a travelable distance informing means, respectively. In this embodiment,
The amount of the liquid in the chemical liquid tank 3 is detected, the distance that can be traveled with the current predetermined spraying is calculated from the amount of the liquid and the vehicle speed, and a notification is made when the distance falls below a preset value (distance).

As shown in FIG. 6, a vehicle speed sensor and a liquid amount sensor are connected to the input side of the CPU, and a notification means is connected to the output side. Then, as shown in the flow of FIG. 7, a preset distance setting value is read, and the vehicle speed is measured by the vehicle speed sensor and the liquid amount in the chemical tank is measured by the liquid amount sensor. Next, a travelable distance is calculated based on the measured vehicle speed and the liquid amount under the current spraying conditions, and a notification is made when the distance becomes equal to or less than the distance set value. According to the present embodiment, even when the remaining amount of liquid in the tank is low, the notification is performed in a state in which the vehicle can travel for a certain distance or more. Therefore, it is possible to eliminate the inconvenience of returning the work and to efficiently supply the liquid.

FIGS. 8 and 9 show another embodiment of the present invention, which is a block diagram and a control flowchart of a liquid amount monitoring means, respectively. In the present embodiment, the chemical solution tank 3
When the liquid medicine is injected into the inside, the liquid amount is monitored and it is notified that the liquid amount reaches a preset liquid amount. As shown in FIG. 8, the input side of the CPU is connected to the tank liquid amount set value input means and the liquid amount sensor, and the output side is connected to the notifying means. Then, as shown in the flow of FIG. 9, a preset tank liquid amount set value is read, and the liquid amount in the chemical liquid tank is measured by the liquid amount sensor at the time of injecting the chemical liquid. If the infused liquid amount is equal to or greater than the above set value, a notification is issued.

The set value of the tank liquid amount is determined on the basis of the liquid amount according to the work plan, and the required liquid amount is calculated by the CPU by inputting the spray amount per unit area and the spray area. Automatic setting may be performed based on this.
According to the present embodiment, since the amount of liquid according to the work plan can be detected, useless use of the chemical liquid can be avoided, so that costs can be reduced and environmental pollution due to excessive discharge of the chemical liquid can be prevented.

FIGS. 10 and 11 show still another embodiment of the present invention, and are a block diagram and a control flowchart of a required liquid amount display means, respectively. In this embodiment,
The required amount of chemical solution and the required amount of water are calculated and displayed from the input values of the spray amount and the spray area per unit time or unit area.

As shown in FIG. 10, on the input side of the CPU, a spray amount input means, a spray area input means, a work speed input means,
A liquid volume sensor and the like are connected, and a display means is connected to the output side.
Then, as shown in the flow of FIG. 11, the input values of the spray amount and the spray area per unit time or unit area which are set in advance are read, and the chemical solution amount and the water amount necessary for spraying are calculated from these input values. The result is displayed on a monitor or the like. The amount of application varies depending on the purpose, such as conventional application, small amount application, and leaf application. Further, instead of or in addition to the spray amount and the spray area, the input value of the working speed can be used for calculating the required liquid amount. According to the present embodiment, the amount of liquid according to the work plan can be easily known, so that the operability of the work is improved, and the wasteful use of the liquid does not occur, which contributes to cost reduction and prevention of environmental pollution. .

Further, as another embodiment, an area that can be sprayed (or a travelable distance) can be calculated from the remaining amount of liquid in the tank, the amount of spraying, and the working speed, and the display can be performed. In this case, the remaining liquid amount is obtained by the pressure sensor, the spray amount is obtained by the spray amount adjustment position, and the work speed is obtained by the detection of the vehicle speed sensor. However, it is also possible to adopt a form in which the operator inputs these data. . According to the present embodiment, the area that can be sprayed (or the travelable distance) can be known from the remaining amount of liquid in the tank during the operation, so that the loss of the liquid according to the operation area can be minimized. I can do it.

[0016]

As described in detail above, the present invention provides
In the chemical spraying device attached to the passenger management machine, a pressure sensor is provided at the bottom of the chemical tank to detect the liquid amount in the chemical tank, so that the chemical tank is not affected by the vibration or shaking of the machine. The liquid amount in the inside can be detected with high accuracy. In addition, the present invention includes a means for detecting the remaining amount of the liquid in the chemical solution tank and notifying that the remaining amount of the liquid is equal to or less than the set amount. .

Further, the present invention includes means for detecting the amount of liquid in the chemical liquid tank when injecting the chemical liquid into the chemical liquid tank, and notifying that the amount of liquid has reached the set amount, so that the injection amount becomes equal to the preset amount. Since the notification is made, the liquid amount according to the work plan can be detected. Further, the present invention includes means for displaying the amount of chemical solution and the amount of water necessary for spraying from the input values of the spraying conditions, so that the amount of chemical solution according to the work plan is displayed, so that the operability can be improved without waste.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a riding management machine provided with a chemical solution spraying device according to the present invention.

FIG. 2 is a longitudinal sectional view of a chemical solution tank.

FIG. 3 is a diagram illustrating a relationship between a detection value of a pressure sensor and a liquid amount in a tank.

FIG. 4 is a block diagram of a remaining amount detection unit.

FIG. 5 is a flowchart thereof.

FIG. 6 is a block diagram of a travelable distance detecting means.

FIG. 7 is a flowchart thereof.

FIG. 8 is a block diagram of an injection liquid amount detection unit.

FIG. 9 is a flowchart thereof.

FIG. 10 is a block diagram of a required chemical liquid amount display means.

FIG. 11 is a flowchart thereof.

[Description of Signs] 1 Passenger management machine 2 Driver's seat 3 Chemical tank 4 Pressure sensor 5 Chemical

Claims (4)

[Claims] 1. A chemical spraying device for a passenger management machine, comprising: a pressure sensor provided at a bottom portion of the chemical tank to detect a liquid amount in the chemical tank. 2. A passenger management machine according to claim 1, further comprising means for detecting a remaining amount of the liquid in the chemical tank and notifying that the remaining amount of liquid is equal to or less than a set amount. Chemical spraying device. 3. A chemical spraying device to be mounted on a passenger management machine, wherein, when a chemical is injected into the chemical tank, means is provided for detecting a liquid amount in the chemical tank and notifying that the liquid amount has reached a set amount. Characteristic spraying device for riding management machine. 4. A chemical spraying device for a riding management machine, comprising: a means for displaying a chemical solution amount and a water amount required for spraying from an input value of a spraying condition.