JPH0819318A - Fertilizer application working machine - Google Patents

Abstract

PURPOSE:To surely and rapidly recognize the occurrence of a fertilizer clogging. CONSTITUTION:This fertilizer application working machine is capable of sensing the pump operation with sensors PS1, PS2 and PS3 of fertilizer application pumps, outputting an operation signal to a driving circuit 27 with an alarm controlling means 22 when at least one of flow sensors NS1, NS2 and NS3 of fertilizer application nozzles senses the stop of the fertilizer flow and operating an alarm buzzer BZ so as to perform the operation of sound production, further outputting a prescribed signal to driving circuits 24, 25 and 26, performing the operation to light an alarm lamp corresponding to the fertilizer application nozzle in which clogging occurs in the alarm lamps L1, L2 and L3 and carrying out the stop operations so as not to operate the alarm lamps L1, L2 and L3 and the alarm buzzer BZ with an alarm controlling means 22 without regard to the information from the flow sensors NS1, NS2 and NS3 when the sensors PS1, PS2 and PS3 of the fertilization application pumps sense the stop of the pumps.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a fertilizer application nozzle for supplying fertilizer to a field, and a fertilizer flow path for connecting the fertilizer application nozzle and a fertilizer tank. The present invention relates to a fertilizer application machine that includes a fertilizer supply path that supplies a nozzle to a field.

[0002]

2. Description of the Related Art Conventionally, the above working machine has not been provided with a special means for judging whether or not fertilizer can be supplied to a field.

[0003]

[Problems to be Solved by the Invention] Conventionally, when clogging occurs in the fertilizer supply channel such as solidification of fertilizer in the fertilizer supply channel,
There was a case where the fertilizer could not be fully spread to the field without realizing it. An object of the present invention is to provide a fertilizer application machine that can easily and promptly recognize and promptly deal with the case where the fertilizer supply path is clogged.

[0004]

In order to achieve the object, a fertilizer application machine according to the present invention is the same as the one described at the beginning, and a flow sensor for detecting the presence or absence of fertilizer flow in the fertilizer supply passage, and an operation of the fertilizer pump. Pump sensor, which detects
A clogging alarm device is provided, and when the pump sensor detects pump operation and the flow sensor detects flow stop, the alarm device automatically operates and the pump sensor When the stop is detected, the alarm device is provided with an alarm control means that links the flow sensor and the pump sensor with the alarm device so as to automatically stop the alarm device. .

[0005]

[Function] In the case of pasty fertilizer, when the fertilizer pump drive is stopped, the fertilizer remains in the fertilizer supply path. Therefore, when the fertilizer work is temporarily stopped, such as turning the machine at the end of the field, Even if the fertilizer supply path is not clogged, the flow sensor will detect no flow. However, in this case, since the fertilizer pump is stopped, the alarm control means stops the alarm device based on the stop information from the pump sensor, and the alarm device does not perform the alarm operation. When the fertilizer supply channel is actually clogged, even if the fertilizer application pump is operated, the fertilizer does not flow in the fertilizer supply channel, or the fertilizer supply channel becomes difficult to flow, and the flow sensor enters a detection state of no flow. When trying to work in this clogged state, the fertilizer pump is activated, so the alarm control means operates the alarm device based on the operation information from the pump sensor and the no flow information from the flow sensor, and the alarm device is activated. Activates an alarm.

[0006]

[Effect of the Invention] When the fertilizer supply channel is clogged, the fertilizer cannot be supplied to the field or becomes insufficient. Therefore, fertilizer flows through the fertilizer supply channel without detecting whether or not the fertilizer application pump is operating. Even if the alarm device is configured to be operated only by detecting whether the fertilizer is supplied or not, it is possible to determine whether or not the fertilizer can be supplied at the time of working as desired. However, in this case, for example, when turning the aircraft at the end of the field, despite the fact that the alarm device has activated and no clogging has actually occurred,
There is a possibility that the fertilizer cannot be supplied. On the other hand, according to the present invention, the alarm device operates only when working due to the action of the pump sensor, so that when the fertilizer supply path is clogged, the alarm device operates to quickly and accurately recognize and immediately We were able to clear the blockages and perform a well-finished work in which the fertilizer was supplied as desired.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a link mechanism 5 which can be vertically swung by a lift cylinder 4 is provided at the rear of a wheeled self-propelled vehicle equipped with a driver's seat 1, a spare seedling storage device 2, a fertilizer tank 3 and the like. The work device 6 is connected so that it can be moved up and down through the structure, and power is transmitted from the self-propelled machine to the work device 6 through the rotary shaft 7, so that a plurality of seedlings can be planted in the field and paste-like. A riding type paddy work machine capable of supplying fertilizer is configured.

As shown in FIG. 2 and FIG. 3, a plurality of planting mechanisms 9 are provided in the rear part of the transmission case 8 forming the working machine body in parallel with the lateral direction of the machine body, and the seedlings are provided in the front part of the transmission case 8. A mounting table 10 is provided, and a plurality of ground floats 11 arranged in parallel in the machine lateral direction are attached to the bottom of the transmission case 8,
Enables seedling planting work. That is, each of the plurality of planting mechanisms 9 ... Is mounted on the transmission case 8 so as to be rotatable about the axis X1.
a and a pair of planting arms 9b mounted on the planting drive case 9a so as to be rotatable about the axis X2.
9b, the pair of planting arms 9b and 9b revolves around the axis X1 while rotating around the axis X1 as the planting drive case 9a is driven, and the planting claw provided on one of the planting arms 9b. 9c and the planting claw 9c provided on the other planting arm 9b are alternately cut from the mat-like seedlings placed on the seedling placement table 10 and taken out from the block seedlings to be planted in the field. Perform a planting exercise.

As shown in FIGS. 1 to 4, one of the grounding floats 11 is arranged so as to be located one by one near the seedling planting mechanism 9 and arranged in parallel in the lateral direction of the machine body.
A plurality of fertilizer application nozzles N1 or N2 or N3 attached to the fertilizer, and a fertilizer having a plurality of fertilizer application pumps P1, P2 or P3 connected to the fertilizer tanks N1, N2 and N3. A fertilizer supply path 13 to the field is configured by the flow path 12 to enable fertilization work.

That is, the fertilizer channel 12 is the fertilizer tank 3
Suction hose 12a extending from the work device 6 to the working device 6, and the suction hose 12a is connected and the drain valve 1
4, a plurality of suction hoses 12c, which are respectively connected to the plurality of fertilizer application pumps P1, P2, P3, ..., and a plurality of fertilizer application pumps P1, P2. , P3 are separately connected to two fertilizer application nozzles N1, N2, N3, respectively, and are formed by a plurality of discharge hoses 12e ... Each of the fertilizer application pumps P1, P2, and P3 is configured to drive the plunger P by a pump driver 16 that is reciprocally swingably attached to the pump support base 15 around the axis X3 as shown in FIGS. 2 and 5. With a plunger pump, a bending / extending link 17 mounted over the pump driving body 16 and the pump support base 15, an interlocking rod 18 extending from the bending / extending link 17, the interlocking rod 18 being rotatably connected to the drive case 9a. It is configured to be driven by being transmitted from the planting mechanism 9 via a power take-out body 19 which is integrally rotatably connected. As shown in FIG. 6, each of the fertilizer application nozzles N1, N2, N3 includes a fertilizer discharge port 21 located on the rear side of the grooving plate 20, and the grooving plate 20 discharges into a groove formed in the mud portion of the field. The fertilizer is supplied from the hose 12e.

That is, pasty fertilizer is stored in the fertilizer tank 3, and all the planting mechanisms 9 ... Are driven. Then, the fertilizer supply path 13 takes out the fertilizer in the tank from the fertilizer tank 3 to the working device 6 by the fertilizer pumps P1, P2, P3, and applies the fertilizer to the two fertilizer nozzles N1, N1 on the left lateral end of the machine by the fertilizer pump P1. Two fertilizer application nozzles N2 and N2 in the center of the machine by the pump P2, and two fertilizer application nozzles N3 and N on the right lateral end of the machine by the fertilizer application pump P3.
The paste-like fertilizer from the fertilizer tank 3 is supplied to each of the three. Then, the two planting mechanisms 9 on the left lateral end of the fuselage,
No. 9 supplies the paste-type fertilizer separately to the field mud soil located near the two-row seedling planting points where the planting work is performed, by the two fertilizing nozzles N1 and N1, respectively, and 2 in the center of the machine body is supplied.
Paste fertilizers are separately supplied by two fertilizer application nozzles N2 and N2 to the field mud located separately near the two-row seedling planting locations where the individual planting mechanisms 9 and 9 plant the work, and the right lateral end of the machine body is supplied. The two fertilizer application nozzles N3 and N3 separately supply the paste fertilizer to the field mud soils that are respectively located near the two seedling planting locations where the two planting mechanisms 9 and 9 are planted.

As shown in FIG. 6, fertilizer application nozzles N1, N
The flow sensor NS1 or NS2 or NS3 is attached to the upper end of each of No. 2 and N3, and as shown in FIG.
1 or PS2 or PS3, and as shown in FIG. 7, all three flow sensors NS1, NS2, NS3, and all detection switches PS1, PS2, PS3, which are linked by the alarm control means 22, by the alarm control means 22 Warning lamps L1, L2, L3 and one alarm buzzer BZ are provided on the operation panel 23 of the self-propelled aircraft.

Each of the flow sensors NS1, NS2, NS3 generates a pulse signal by rotating a rotary blade (not shown) which rotates when the paste-like fertilizer flows inside. Alarm control means 22
When the rotary blades rotate, the paste-like fertilizer is flowing through the fertilizer supply path 13, and when the rotary blades are stopped, it is detected that the fertilizer flow in the fertilizer supply path 13 is stopped. The detection result of is transmitted to the alarm control means 22 as an electric signal.

Each of the detection switches PS1, PS2 and PS3 is attached to the pump support base 15. When the fertilizer pump P1 or P2 or P3 is driven, the magnet body 22 attached to the pump drive body 16 as the detection target body of the detection switch PS1 or PS2 or PS3 reciprocally swings the pump drive body 16 so that the detection switch PS1 is detected. Or moving in and out of the detection range of PS2 or PS3,
The detection switch PS1, PS2 or PS3 generates a pulse signal and outputs it to the alarm control means 22. As a result, in the detection switch PS1, PS2 or PS3, the fertilizer pump P1 or P2 or P3 is activated by moving the magnet body 22 within the detection range of the detection switch PS1, PS2 or PS3, and
It is detected that the fertilization pump P1 or P2 or P3 is stopped due to the absence of the movement of No. 1, and the detection result of each is transmitted to the alarm control means 22 as an electric signal.

The alarm control means 22 comprises a microcomputer, and based on the information from the flow sensors NS1 to NS3 and the information from the detection switches PS1 to PS3, the drive circuits 24 for the alarm lamps L1 to L3 and the alarm buzzer BZ respectively. By outputting a predetermined signal to 25, 26 or 27, the alarm lamps L1 to L3 and the alarm buzzer BZ are automatically operated. That is, when each of the detection switches PS1, PS2, PS3 for the fertilizer application pump is in the detection state of the pump stop, the alarm control means 22.
Is an alarm lamp L for all drive circuits 24-27 in preference to information from all flow sensors NS1, NS2, NS3.
1, L2, L3 or all the alarm lamps L1, L by outputting a signal for stopping the alarm buzzer BZ
2, L3 and alarm buzzer BZ flow sensor NS1-
Stop operation is performed so that it does not operate regardless of the information from NS3. And the detection switch PS1 for the fertilizer pump
~ PS3 detects pump operation, flow sensor NS1,
When at least one of NS2 and NS3 detects the flow stop, the alarm control means 22 outputs a signal for activating the alarm buzzer BZ to the drive circuit 27 to operate the alarm buzzer BZ to sound. . At the same time, it is determined which of the flow sensors NS1, NS2, NS3 is in the flow stop detection state, and the alarm lamps L1, L2, L are determined based on the determination result.
The alarm lamp L1 that determines which of the three is to be activated and is determined to be activated
Alternatively, by outputting a signal to activate the alarm lamp to the drive circuit 24, 25 or 26 of L2 or L3, the flow sensor NS1 in the state of detecting the flow stop.
Alternatively, the alarm lamp L1 or L2 or L3 corresponding to NS2 or NS3 is operated to be turned on.

In short, when the fertilizer supply passage 13 is clogged during fertilizer application, the fertilizer pump P1
The fertilizer does not flow through the fertilizer supply path 13 even if P3 is driven.
Then, the alarm control means 2 based on the information from the flow sensors NS1 to NS3 and the pump sensors PS1 to PS3.
In order for 2 to operate the alarm operation, the alarm buzzer BZ sounds and issues a warning of clogging, and at the same time, a part or all of the alarm lamps L1 to L3 are activated to give a warning of clogging. This makes it possible to recognize that the fertilizer supply path 13 is clogged and the fertilizer cannot be supplied to the field. Then, when only some of the alarm lamps L1 to L3 are lit, by knowing which alarm lamp is lit, which fertilizer nozzle N1 in the fertilizer supply path 13 is known. Alternatively, it can be determined whether or not it is clogged at N2 or N3. When the fertilizer application work is temporarily stopped such as turning the machine body at the end of the field, the fertilizer supply pumps P1 to P3 are stopped, so that the fertilizer supply path 13 does not flow even if the fertilizer supply path 13 is not clogged. The sensors NS1 to NS3 will detect a flow stop. However, in this case, since the alarm control means 22 operates to stop the alarm based on the information from the pump sensors PS1 to PS3, neither the alarm buzzer BZ nor the alarm lamps L1 to L3 operate.

[Other Embodiments] Fertilizer application nozzle N on the left lateral end of the machine body
In detecting whether or not the fertilizer application pump P1 for supplying fertilizer to No. 1 and the fertilizer application pump P3 for supplying fertilizer to the fertilizer application nozzle N3 on the right side end of the machine are operating, the detection switches PS1 and PS3 used in the above-described embodiment are used. Alternatively, the detecting means PS1 or PS3 shown in FIG. 8 may be adopted for implementation.

That is, the detection switch 29 for detecting whether the main clutch CL1 for turning on and off the transmission from the engine to the traveling mission and the work mission is on or off based on the operating position of the main clutch operating pedal 28, work Detection switch 31 for detecting whether the work clutch CL2 for turning on and off the power transmission from the power transmission to the work device 6 is turned on and off based on the operating position of the work clutch operating lever 30, and the planting mechanism 9 on the left lateral end side of the machine body A fertilizing nozzle N1 on the left lateral end of the machine is detected by a detection switch 33 that detects whether each of the clutches CL3 for turning on and off the power transmission to and from each other is detected based on the operating position of the operating lever 32 of each of the clutches CL3. The detection means PS1 for the fertilizer application pump P1 for supplying fertilizer is constituted. That is, the detection results of the detection switches 29, 31, 33 are transmitted to the alarm control means 22, and all the detection switches 2 are detected.
When 9, 31, and 33 detect that the clutch is engaged, it is detected that the fertilizer application pump P1 is operating, and the detection switch 2
When at least one of the detection switches 9, 31, 33 detects clutch disengagement, it detects that the fertilizer application pump P1 is stopped.

Further, the operating lever 3 of each thread clutch CL4 determines whether each thread clutch CL4 for turning on and off the transmission to the planting mechanism 9 on the right lateral end of the machine is on or off.
The fertilizer pump that supplies fertilizer to the fertilizer nozzle N3 on the right lateral end of the machine by the detection switch 35 that detects the operating position of No. 4, the detection switch 29 of the main clutch CL1, and the detection switch 31 of the work clutch CL2. A detection means PS3 for P3 is constructed. That is, the detection results of the detection switches 29, 31, 35 are transmitted to the alarm control means 22, and when all the detection switches 29, 31, 35 detect the clutch engagement, it is detected that the fertilizer pump P3 is operating. When at least one of the detection switches 29, 31, 35 detects the clutch disengagement, it detects that the fertilizer application pump P3 is stopped. Therefore, the detection switches PS1 to PS3,
The detecting means PS1 and PS3 are replaced by pump sensors PS1 to PS
Collectively referred to as 3.

When the fertilizer application nozzle is provided with the flow sensor as in the above-mentioned embodiment, it is advantageous to determine which nozzle has caused the clogging even if a plurality of fertilizer application nozzles are provided. A flow sensor may be provided at a position located on the tank side of the branch tool 12d.

If a plurality of alarm lamps as an alarm device are provided as in the above-mentioned embodiment and the location of the clogging can be determined by knowing which of the alarm lamps has operated, the location of the clogging can be determined. Although there is an advantage in that it is possible to quickly know and quickly perform the work of clearing the clogging, it is possible to implement it by providing only one alarm device.

The present invention can be applied not only to a working machine that can perform fertilization work at the same time as seedling planting work, but also to a dedicated fertilization work machine that performs only fertilization work alone. Therefore, these working machines are collectively called fertilizer working machines.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of the entire riding type paddy work machine

FIG. 2 is a side view of the working device.

[Figure 3] Rear view of the seedling planting section

[Figure 4] Illustration of fertilizer supply path

FIG. 5 is a side view of the fertilizer pump installation portion.

FIG. 6 is a side view of an arrangement portion of a fertilizer application nozzle.

FIG. 7 is a block diagram showing a control system of an alarm buzzer and an alarm lamp.

FIG. 8 is an explanatory view showing another structure of the pump detecting means.

[Explanation of symbols]

 3 Fertilizer tank 12 Fertilizer flow path 13 Fertilizer supply path 22 Alarm control means P1, P2, P3 Fertilizer pump N1, N2, N3 Fertilizer nozzle PS1, PS2, PS3 Pump sensor NS1, NS2, NS3 Flow sensor L1, L2, L3, BZ Alarm device

Claims (1)

[Claims] 1. A fertilizer application nozzle (N1, which supplies fertilizer to a field.
N2, N3) and this fertilizer application nozzle (N1, N2,
Fertilizer channel (12) connecting N3) and fertilizer tank (3)
With a fertilizer pump (P1, P2, P
3) A fertilizer application machine comprising: a fertilizer supply path (13) for supplying the fertilizer nozzles (N1, N2, N3) from the fertilizer tank (3) to an agricultural field by the fertilizer supply path (13). Flow sensor (NS1, NS2, NS3) for detecting the presence or absence of fertilizer flow, pump sensors (PS1, PS2, PS3) for detecting the operation and stop of the fertilizer application pumps (P1, P2, P3), and a clogging alarm device. (BZ, L1, L2, L3), the pump sensors (PS1, PS2, PS3) detect pump operation, and the flow sensors (NS1, NS
(2, NS3) detects the flow stop, the alarm device (BZ, L1, L2, L3) is automatically operated, and the pump sensor (PS1, PS2, PS3) detects the pump stop. The alarm device (BZ, L
1, L2, L3) are automatically stopped so that the flow sensor (NS1, NS2, NS3), the pump sensor (PS1, PS2, PS3) and the alarm device (BZ, L1, L2, L3) are stopped. A fertilizer application machine provided with an alarm control means (22) which is associated with.