JP4742529B2 - Fertilizer applicator - Google Patents

Description

  The present invention relates to a fertilizer applicator that applies fertilizer to a farm field from a fertilizer hopper by a feeding unit.

  2. Description of the Related Art Conventionally, there is a fertilizer applicator that is installed in a farming machine such as a rice transplanter and applies fertilizer simultaneously with rice transplanting work. In this fertilizer applicator, fertilizer is supplied from a plurality of feeding portions provided with the fertilizer in the fertilizer hopper in parallel to the left and right to the fertilizer through the conduits, and the fertilizer is discharged from the fertilizer.

  In the fertilizer applicator, a feed amount adjustment mechanism for adjusting the feed amount of the fertilizer of the feed portion is provided in each of the plurality of feed portions, and the plurality of feed amount adjustment mechanisms are operated by operating the feed amount adjustment handle. There is an example of changing and adjusting the amount. For example, in the example of Patent Document 1, an electric motor for driving the feeding unit is provided and controlled in the vehicle side for this change adjustment, and the feeding amount of the feeding unit can be automatically changed.

  However, it is necessary to adjust the feed amount by adjusting the dial to the desired scale position prior to the fertilization work by the agricultural machine, and when changing the feed amount during the fertilization work, stop and dial the dial. There was a need to adjust. For this reason, there is a problem in that if the amount of fertilization is finely adjusted, the work efficiency is reduced.

In addition, as the large-scale maintenance of the field is progressing, the ground force unevenness in one field is increasing. The geological unevenness often has a specific tendency due to the influence of cut embankment at the time of creation, and there is a strong demand for changing the amount of fertilization by dividing the field into several sections. In the current technology, the fertilizer application amount can be changed during the operation, but the change of the fertilizer application amount is complicated, and an expensive control system (accurate GPS, computer) is separately required, which is not realistic. And from the viewpoint of cost reduction, environmental load reduction and high value-added agricultural product production, fertilizer saving and proper application are required.
JP 2002-272231 A

  An object of the present invention is to provide a fertilizer applicator capable of finely adjusting the fertilizer application amount in order to reduce fertilizer and achieve proper application with a simple configuration without causing a reduction in work efficiency.

In the fertilizer applicator (15), the fertilizer in the fertilizer hopper (31) is transferred from the feeding section (19) to the fertilizer section (33) via the conduit (32) and fertilized in the field. In order to select a setting value to be used from a plurality of setting values set by the fertilizing amount setting means (86) capable of inputting a plurality of setting values as a set fertilizing amount per unit area. Fertilizing amount selection means (89), feeding amount changing means (41) for changing the feeding amount of the feeding portion (19), and the feeding amount based on the set value selected by the fertilizing amount selection means (89) A control unit (92) for controlling the changing unit (41), a rotation number detecting unit (40) of the feeding unit (19), and a field setting unit for selecting a field number;
A plurality of set fertilization amounts can be set for the field number selected by the field setting means, and the feeding amount changing means (41) is controlled based on the set fertilization amount. .

The invention of claim 2 comprises a rotation speed detection section (40) of the feeding section (19), a detection time setting means for setting a target time for detecting the total number of rotations of the feeding section (19), and the rotation speed detection section ( 40) Based on the detection of 40), a control unit (92) for calculating the total number of rotations of the feeding unit (19) within the time set by the detection time setting means, and information on the total fertilizer application amount based on the total number of rotations are displayed. A display unit (85b) is provided.

According to the invention of claim 1, a plurality of set values for defining the fertilizer amount per unit area are input and held in the fertilizer application amount setting means, and used by the fertilizer application amount selecting means from among the plurality of set values When the set value to be selected is selected, the feed amount corresponding to the selected set value is determined, and the feed operation of the feed unit is changed by the feed amount changing means according to the feed amount.
Thus, since the fertilizer is configured so that a desired fertilizing amount can be selected from a plurality of set fertilizing amounts that can be arbitrarily set, the set fertilizing amount can be easily switched during work, for example, Even if the fertilizer concentration in the soil is different locally, the amount of fertilization can be changed correspondingly and the fertilizer concentration in the entire field can be made uniform.
In addition, data corresponding to the field number selected by the field setting means and a plurality of set fertilization amounts are stored in the control unit (92), and a plurality of corresponding automatically are selected by selecting the field number before starting the work. The set fertilizer amount can be called and the set fertilizer amount can be easily switched during work.
Therefore, for example, an expensive control system such as a high-precision GPS or computer is not required, and the field is divided into several sections corresponding to the geological unevenness that has a specific tendency due to the influence of cut embankment at the time of creation. The amount of fertilizer can be automatically changed, and fertilizer can be saved and proper application can be made, thereby reducing costs, reducing environmental impact, and producing high-value-added agricultural products.

According to the invention of claim 2 , in addition to the effect of the invention of claim 1 , the display unit displays information on the total fertilization amount based on the total number of rotations of the feeding unit (19) within the time appropriately set by the detection time setting means. (85b) can be displayed, and the feed amount can be changed with reference to the displayed information.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2 are a side view and a plan view of an example of a riding type rice transplanter equipped with a fertilizer applicator. The rider-type rice transplanter 1 is provided with an engine 3 as a drive source substantially at the center of the body frame 2, and a front wheel 6 driven by a power from the engine 3 via a hydraulic continuously variable transmission 4 and a main transmission 5. , 6 and rear wheels 7,7.

A cockpit 8 is provided above the engine 3, and a seedling planting portion 10 is attached to the rear of the body frame 2 via a link mechanism 9. The seedling planting portion 10 is hydraulically moved up and down. A lifting cylinder 11 is provided. Moreover, it is the structure which is transmitted and act | operated by the planting transmission shaft 14 via the planting clutch 13 which turns on / off the power from the main transmission 5 . On the right side of the cockpit 8, a planting / elevating lever 16 for performing a turning on / off operation of a fertilizer machine 15 and a seedling planting unit 10 to be described later and an elevating operation of the seedling planting unit 10 is disposed.

  The planting clutch 13 receives power from the main transmission 5 and transmits it to the planting transmission shaft 14 and also transmits to the fertilizer transmission rod 18 of the fertilizer applicator 15. The planting transmission shaft 14 can switch the speed with respect to the input rotational speed and receive power from the planting clutch 13 to shift the operating speed of the seedling planting unit 10 with respect to the traveling speed of the machine body. On the other hand, the fertilizer transmission rod 18 is transmitted at a predetermined transmission ratio from the input side because it is necessary to operate the feeding portion 19 of the fertilizer application 15 at a predetermined speed with respect to the traveling speed of the machine body.

  In this example, the seedling planting unit 10 has a six-row planting structure, and includes a seedling mounting table 20 and seedling planting devices 21 for six strips. The planting transmission shaft 22 receives the power of the planting transmission shaft 14 from the planting transmission unit 22. It is configured to operate. Further, at the lower part of the seedling planting part 10, a center float 23a is provided at the center and side floats 23b, 23b are provided at both sides so as to slide in the field. The seedling mounting table 20 carries a mat seedling and reciprocates left and right to supply seedlings one by one to the seedling outlet 21a of each strip and to transfer the seedlings downward. The transmission case of the planting transmission unit 22 also serves as a frame, and a clutch is provided in the transmission case, and the operation of the seedling planting device is turned on and off in units of two.

(Fertilizer)
The fertilizer applicator 15 is provided in front of the seedling planting unit 10. This fertilizer machine 15 includes a fertilizer hopper 31 for storing granular fertilizer to be dispersed in a field, a feeding portion 19 for each strip, a conduit 32 for each strip for guiding fertilizer conveyance, and a fertilizer at the tip of the conduit 32. 33 ... and the feeding transmission part 25 which drives the feeding amount of the feeding part 19 ... so that adjustment is possible, the ventilation part 26, etc. are provided.

(Feeding section)
As shown in the cross-sectional view of FIG. 3, the feeding portion 19 is configured by a feeding roller 34 supported by a feeding shaft 35 at the lower end of a fertilizer hopper 31 with a shutter. On the outer peripheral surface of the feed roller 34, feed grooves 34a are provided at every predetermined angle in the rotational direction, and the feed shafts 35 are arranged side by side in the vehicle width direction, and these are integrated in the vehicle width direction. It is rotated by gear transmission from the feeding drive shaft 36. Further, a brush 34b that is in contact with the outer peripheral surface of the roll 34 is provided on the front side of the supply roll 34, and is configured to scrape off the fertilizer overflowing from the supply grooves 34a. The feeding roll 34 stores the granular fertilizer dropped and supplied from the fertilizer hopper 31 in the feeding groove 34a, and the fertilizer is fed every predetermined amount by the rotation of the feeding roll 34 through the outlet 19b. 32...

(Feeding transmission part)
The feeding transmission unit 25 for driving the feeding units 19 is disposed between the feeding units 19 and 19 adjacent to each other as shown in FIGS. A feeding amount adjusting mechanism 41 that automatically adjusts the feeding amount of the feeding portion 19 by the actuator 53 and an adjustment amount detecting portion (rotation speed detecting portion) 40 by a stroke sensor that detects the adjusting amount are provided adjacent to the transmission portion 25.

  The feeding transmission unit 25 is connected to the crankshaft 13b output from the planting clutch 13 and is operated in a substantially vertical direction through a fertilizer transmission rod 18 and a forward and backward direction from the fertilization transmission rod 18 via a counter link 42 for direction change. And an adjustment rod 43 that moves forward and backward, and a one-way clutch 44 to which the adjustment rod 43 is connected. The one-way clutch 44 is attached to the feeding drive shaft 36, and the feeding shaft 35 is rotated in one direction by gear transmission.

  The one-way clutch 44 is arranged in two stations, and two opposing rods 46a and 46b that are opposed to each other via a counter link 45 that reverses the direction between them are connected to the outer periphery of each to constitute a reciprocating rotation mechanism. By connecting the adjusting rod 43 to one of them, the feeding shaft 35 can be continuously rotated in the reciprocating stroke of the adjusting rod 43.

  The feed amount adjustment mechanism 41 is connected to an expansion / contraction rod 51 that extends and contracts via a screw mechanism and a rear end portion 51b of the expansion / contraction rod 51, and swings to adjust the position of the support shaft 42a of the counter link 42. The fulcrum adjustment link 52 that is pivotally supported by the support shaft 52a and the electric motor 53 for expansion / contraction adjustment directly connected to the front end portion of the expansion / contraction rod 51 are configured. The telescopic rod 51 is pivotally supported by the feeding transmission unit 25 so that it can swing by a support shaft 51c, and an adjustment amount detection unit that detects the amount of expansion / contraction of the telescopic rod 51 via a connecting member 54 extending laterally. 40. The adjustment amount detection unit 40 is parallel to the telescopic rod 51 and on the axis of the support shaft 51c of the telescopic rod 51 at a position sandwiching the feeding transmission unit 25 on the side of the feed amount adjusting mechanism 41. To support the shaft.

  The fulcrum adjusting link 52 swings about the support shaft 52a, thereby changing the shaft support position of the counter link 42 according to the swing position of the telescopic rod 51 extending and contracting, and the fertilizer transmission rod 18 moves up and down at a constant stroke. In operation, the advance / retreat amount of the adjustment rod 43 connected to the one-way clutch 44 is changed, so that the rotation amount of the one-way clutch 44 can be changed according to the extension / contraction of the extension / contraction rod 51.

(Feeding amount adjustment control)
For operation of the feed amount adjusting mechanism (feed amount changing means) 41, an input operation unit for setting the feed amount and a control for adjusting and controlling to a predetermined feed amount by a feedback signal from the adjustment amount detecting unit 40 are provided. The electric motor 53 is adjusted and controlled by this control. For example, an input operation unit 55 shown in FIG. 6 is provided to input the specific gravity of the fertilizer and the amount of fertilizer applied per area, and the necessary target feed amount is calculated. The electric motor 53 is configured to be electronically controlled so as to maintain the expansion / contraction position of the expansion / contraction rod 51 corresponding to the target feeding amount.

(Blower part, etc.)
The blower unit 26 is configured such that a blower 62 provided on the side of the feeding unit 19... Is driven by a power source of a battery 61 disposed at the front portion of the machine body frame 2. The communication air is sent to the feeding unit 19 via the. The fertilization air chamber 63 is configured to be long in the left-right direction on the front side of the feeding portion 19... And the blower 62 is attached to the left end portion of the air chamber 63. By the pressure air received in the air chamber 63, the fertilizer in the feeding sections 19 is conveyed from the conduits 32 to the fertilizer sections 33 and dispersed on the field. The fertilization air chamber 63 is configured integrally with the fertilizer recovery pipe 64 and has a substantially rectangular side cross section. The fertilizer hopper 31 and the feeding portion 19 are provided at the rear portion of the body frame 2 that is immediately behind the cockpit 8. The fertilizer collecting pipe 64 communicates with the front side of the feeding roll 34, and takes out and collects the granular fertilizer remaining in the fertilizer hopper 31 and the feeding unit 19 after the work is completed. The fertilizer 33 is attached to the floats 23a and 23b so that fertilizer is supplied to the side of the seedling planting position of the field of each row by the seedling planting unit 10 with a grooving device or the like. Yes.

  The riding type rice transplanter 1 with the fertilizer 15 having the above-described configuration is configured such that the fertilizers 33 in the fertilizer hopper 31 are provided from the six feeding portions 19 provided in parallel on the left and right via the respective conduits 32. The fertilizer is transferred to ... and the fertilizer is discharged from the fertilizer 33, so that the fertilizer is applied to the field for six strips. Even during fertilization work, the fertilization amount (fertilizer weight) can be changed and set by the input operation unit 55 for adjusting the feed amount according to the difference in the fertilization state of the field. In addition, as an example of changing and setting the fertilizer application amount (fertilizer weight) depending on the difference in the fertilization state of the field, it is possible to reduce the amount of fertilizer fed in order to run the aircraft redundantly at the edge of the field.

  The fertilizer applicator 15 having the above-described configuration is provided with the feeding transmission unit 25 between the feeding units adjacent to each other. It can arrange | position in the center of the width direction. At the time of fertilization, each feeding unit 19 is driven via the feeding transmission unit 25, and the feeding amount adjusting mechanism 41 controls the actuator 53 with a signal from the adjusting amount detection unit 40, thereby increasing the amount according to the command. The feeding amount can be adjusted with accuracy.

  Therefore, the fertilizer machine 15 can easily configure the transmission system of the feeding unit by arranging the feeding unit 19 at the center of the machine body even when the plurality of feeding units 19 are arranged horizontally long. The efficiency can be made uniform. Furthermore, when it arrange | positions so that the feeding transmission part 25 may be pinched | interposed between the feeding amount adjustment mechanism 41 and the adjustment amount detection part 40, while being able to improve the adjustment precision of feeding amount by the balance property of the left-right direction, Since the space is formed on both sides of the feeding transmission unit 25 when the amount adjusting mechanism 41 and the adjustment amount detecting unit 40 are removed, the maintenance of the feeding transmission unit 25 can be facilitated.

  Next, another embodiment of the feeding amount adjusting mechanism of the feeding transmission unit 25 will be described. As shown in FIG. 7 and FIG. 8 and FIG. 9 as viewed in the direction of the arrow A in FIG. It arrange | positions between and transmits motive power to the delivery axis | shaft 35. FIG. On the side of the feeding transmission unit 25, a feeding amount adjusting mechanism 71 is integrally formed with the adjusting amount detecting unit 40 and arranged. Similarly to the above, the feed amount adjusting mechanism 71 includes an electric motor 53 for automatic adjustment, and a stroke sensor as the adjustment amount detecting unit 40 is connected in parallel with the telescopic rod 51.

  The actuator such as the electric motor 53 is configured by being directly connected to the feed amount adjusting mechanism 71, so that both can be secured on the same axis, so that the actuator can be driven with low torque without transmission loss. By arranging it forward, the efficiency of installation and maintenance can be improved. In addition, the adjustment amount detection unit 40 can be integrated with the feed amount adjustment mechanism 71 to prevent a time lag and stroke loss and improve the adjustment system.

  The electric motor 53 of the feeding amount adjusting mechanism 71 is disposed in front of the fertilizer hopper 31 of the feeding portion 19, and a rolling fulcrum 31a is provided so that the fertilizer hopper 31 can roll over backward. The fertilizer hopper 31 has a rollover space behind the electric motor 53 and can roll over the fertilizer hopper without interfering with the electric motor 53. Therefore, the maintainability of the feeding portion 19 can be improved. it can.

  As shown in FIG. 10, the feed amount adjusting mechanism 71 is configured to be replaceable with a handle 72 for manual operation instead of the actuator. The electric motor 53 is configured as a replaceable unit, so that when the electric motor 53, the adjustment amount detection unit 40, the control processing unit, or the like has a failure, the feeding amount can be adjusted by operating the handle 72. Therefore, fertilization work can be continued due to equipment troubles.

  The operation unit and the display unit for setting the operation of the fertilizer applicator 15 have an operation unit 85a at the center of the steering handle 81 of the control unit and a display unit 85b as shown in FIG. By arranging the upper end of the steering column 81a so as to be visible inside the steering handle 81, it is possible to set the specific gravity of the fertilizer, the feed amount, and the like.

  Specifically, as shown in an enlarged view in FIG. 12, the operation unit 85 a is centered on a “fertilization setting” switch (fertilization amount setting means) 86 that switches a target to be set to specific gravity and fertilization amount. Switch buttons 87a and 87b for "increase" and "decrease" operations, "cumulative reset" switch button 88, "variable" switch button (fertilizing amount selection means) 89 for switching the set value on the left side, ON lamp 89a for switching state display, etc. Is configured in a touch panel type. Further, as shown in an enlarged view in FIG. 13, the display unit 85 b includes a display unit 90 that displays items such as “dispersion setting”, “specific gravity”, “fertilization amount”, and “total”, and a switch button 91 that switches the display item. Is arranged and configured.

  By arranging the “variable” switch button 89 of the operation unit 85a at the center of the steering handle 81, the amount of fertilization can be changed at any time by operating the button during work travel, thereby improving workability. it can. In addition, even during traveling, the operator can plant the plant without breaking his driving posture. On the other hand, in the conventional unit in which the adjustment operation part and the display part are integrated on the meter panel, the operation posture may be lost due to the adjustment operation through the steering wheel. It is possible to solve the problem and improve the straight traveling performance. Furthermore, by configuring the switch buttons in a touch panel shape that does not protrude from the steering top surface, even when seedling supply and fertilizer supply at the time of rice transplanting work, work can be performed without being caught by the switch buttons.

  With regard to the display unit 85b, in the conventional unit where operation and display are integrated, it is difficult to see the shadow of the grip of the handle 81. However, by configuring the display unit 85b as described above, display items can be easily displayed. Since it can be visually recognized, it is possible to eliminate a situation in which the driving posture is lost when the display is confirmed.

  As shown in the input / output configuration diagram of FIG. 14, the control unit 92 that processes the operation setting of the fertilizer machine 15 by the operation unit 85a and the display unit 85b includes fertilizer application in addition to the related devices of the operation unit 85a and the display unit 85b. An adjustment amount detection stroke sensor (adjustment amount detection unit) 40 and an adjustment amount changing electric motor 53 for adjusting the supply amount are connected to the supply unit 19 of the machine 15.

  Specifically, as shown in the flowchart of FIG. 15, the specific setting processing procedure displays specific gravity setting values as initial processing by the engine key switch (S1 to S3). Next, by checking the variable switch 89 (S4), “normal” and “variable” are alternately switched according to the switch operation. Specifically, “normal”, that is, lamp off and normal set value display (S6a) for the switching process (S4a to S4c) for the control flag C according to the operation of the variable switch, the variable lamp 89a and the fertilizer application amount display 90. , S7a), or “variable”, that is, alternately switching to lamp on and variable setting value display (S6b, S7b), and maintaining the state by checking the control flag C (S5) until the next operation of the variable switch 89 To do.

  Next, if the fertilization setting switch 86 is checked (S8), if it is on, fertilization setting processing (S9) described later is performed. If it is off, the electric motor for changing the adjustment amount based on the specific gravity setting value and the fertilization amount setting value. 53 (S10), and the display items are switched in the order of “specific gravity”, “fertilization amount”, and “total” in accordance with the next operation of the display changeover switch 91 (S11, S12).

  The fertilization setting process (S9) will be described in detail. As shown in the flowchart of FIG. 16, the set value of the display item is increased and changed according to the operation of the “increase” switch 87a. (S21 to S23) Further, the set value of the display item is decreased and changed according to the operation of the “decrease” switch 87b, and the changed set value is displayed (S24 to S26). This process is repeated until the fertilizer setting switch 86 is checked (S27) until the next display item is displayed in the order of “specific gravity”, “fertilizer amount”, and “total” (S28).

  In addition, as shown in the flowchart of FIG. 17, the total calculation is performed based on the rotation sensor value of the feeding roll 34 (S 31), and the total value is calculated according to the operation of the total reset switch 88. Clear (S32, S33).

  The agricultural machine fertilizer 15 having the above-described configuration is configured so that a desired fertilizing amount can be changed from a set fertilizing amount that can be arbitrarily set by a selection operation in the control units 81 and 81a. Since the fertilizer amount can be switched to the same level, even if the soil fertilizer concentration is different locally in the field, the fertilizer amount can be changed correspondingly to achieve uniform fertilizer concentration throughout the field. .

Next, display processing of yield information for switching fertilizer amount will be described.
In the fertilization work traveling, the display unit 85b is configured to display yield information. Specifically, as shown in FIG. 18, the field address, area, fertilization amount, fertilizer type, specific gravity, etc. are input in advance, and yield information for the previous year is registered for each field mesh, and the yield By adopting a configuration in which the type of fertilizer can be determined with reference to the information or the fertilizer application amount can be changed while running, for example, the fertilizer application amount can be increased in a portion with a low yield, and variation in yield can be prevented.

A display process for displaying the yield information will be described with reference to the flowchart of FIG. In the following, the same processing steps as those described above are denoted by the same reference numerals, and description thereof is omitted.
In the range excluding the display process (S1 to S8), the fertilization setting switch 86 checks (S8), and if it is on, the fertilization setting process (S9a) described below is performed. Based on the specific gravity setting value and the fertilizer application amount setting value, an output is made to the adjustment amount changing electric motor 53 (S10).

  The fertilization setting process (S9a) will be described in detail. As shown in the flowchart of FIG. 20, after the field address display blinks (S41), the blinking items are sequentially switched at the timing when the display changeover switch is turned on ( S42, S43). The blinking items are switched endlessly in the order of “field address”, “area”, “fertilizer amount”, “fertilizer type”, and “specific gravity”.

Including the subsequent “increase” and “decrease” 87a and 87b switch processes (S21 to S26), the display changeover switch sequentially switches the blinking until the fertilizer setting switch 86 check (S27) is turned on (S42, S43). ) Can be repeated to set each item.
In this way, fertilization work can be performed by changing the conditions for each field as in the example of FIG.

  Further, as in the running example of FIG. 22 in which the fertilization work is automatically switched, the set feeding amount Fn (set fertilizing amount) and the rotation of the feeding unit are corresponded to the field number by the first teaching process as in the example of FIG. A control table in which the total number is set is created, and thereafter fertilization can be performed in an automatic mode along this control table. In this example, a case where the entire field is divided into two sections using two kinds of set feed amounts and fertilization work is performed so that different feed amounts are obtained in the respective areas is shown. The processing procedure can automatically switch the fertilizing process based on the total number of rotations of the feeding section, as in the flowchart of FIG. In addition, it is good also as a structure which replaces with the rotation total of the said delivery part, and switches a fertilization process automatically based on the traveling distance of the body by the rotation speed detection of a traveling wheel.

  Also, a work start button and work end button serving as detection time setting means for setting a target time for detecting the total number of rotations of the feeding part 19 are provided, and the feeding part from when the work start button is pressed until the work end button is pressed. The total number of rotations of 19 is calculated from the detection value of the adjustment amount detection unit (rotation number detection unit) 40 and its elapsed time, and the total fertilization amount (fertilizer input amount) based on the calculated total number of rotations and the bulk density of the fertilizer is calculated. It is displayed on the display unit 85b. Thereby, the total fertilization amount immediately before actually fertilized can be calculated systematically, and the feed amount can be changed with reference to the displayed total fertilizer amount.

  In addition, this invention is not limited to the fertilizer machine with which a rice transplanter is equipped, It is applied to the agricultural machine in general. Moreover, it can replace with the said fertilizer and can also be used as a chemical spreader which spreads a granular chemical | medical agent.

It is a whole side view of the riding type rice transplanter concerning an example equipped with a fertilizer applicator. It is a top view of the riding type rice transplanter of FIG. It is sectional drawing of a delivery part. It is a top view of a feeding transmission part. FIG. 5 is a side view of the feeding transmission unit in FIG. 4. This is the control input operation unit. It is a top view of the feeding transmission part which concerns on another structural example. It is a side view of the feeding transmission part of FIG. It is A arrow directional view of FIG. It is a principal part structural example of a feed amount adjusting mechanism. It is an arrangement | positioning front view of an operation part and a display part. FIG. 12 is an enlarged view of a display example of the operation unit in FIG. 11. It is an enlarged view of the example of a display of the display part of FIG. It is an input-output system diagram of a control part. It is a flowchart of a setting process procedure. It is a flowchart of a fertilizer setting process. It is a flowchart of a process of total calculation. It is an example of a display of the yield information of a display part. It is a flowchart which displays yield information. It is a flowchart of the fertilization setting process of a yield information display. This is an example in which fertilization conditions are provided for each field. It is the driving | running | working example which switches fertilization work automatically. It is an example of the control table created by the teaching process. It is a processing procedure figure by teaching.

1 Ride type rice transplanter (agricultural work machine)
6 front wheel 7 rear wheel 8 cockpit 10 seedling planting section 14 planting transmission shaft 15 fertilizer machine 19 feeding section 31 fertilizer hopper 32 conduit 33 fertilizer section 40 adjustment amount detection section (rotation speed detection section)
41 Feed amount adjustment mechanism (feed amount changing means)
55 Input operation unit 71 Feed amount adjustment mechanism (feed amount changing means)
81a Steering column (control section)
81 Steering handle (control part)
85a Operation section 85b Display section 86 Fertilizer application setting means 89 Variable switch (fertilizer application quantity selection means)
92 Control unit

Claims (2)

In a fertilizer applicator (15) for transferring fertilizer in the fertilizer hopper (31) from the feeding section (19) to the fertilizer section (33) via the conduit (32) and applying fertilizer to the field,
In order to select a setting value to be used from a plurality of setting values set by the fertilizing amount setting means (86) capable of inputting a plurality of setting values as a set fertilizing amount per unit area. Fertilizing amount selection means (89), feeding amount changing means (41) for changing the feeding amount of the feeding portion (19), and the feeding amount based on the set value selected by the fertilizing amount selection means (89) A control unit (92) for controlling the changing unit (41), a rotation number detecting unit (40) of the feeding unit (19), and a field setting unit for selecting a field number;
A plurality of set fertilization amounts can be set for the field number selected by the field setting means, and the feeding amount changing means (41) is controlled based on the set fertilization amount. Fertilizer applicator . Speed detecting portion of Repetitive out portion (19) and (40), and detection time setting means for setting a target time for detecting the rotation total number of the feeding portion (19), based on the detection of the rotation speed detector (40) A control unit (92) for calculating the total number of rotations of the feeding unit (19) within the time set by the detection time setting means, and a display unit (85b) for displaying information on the total fertilization amount based on the total number of rotations. The fertilizer applicator according to claim 1 , wherein the fertilizer applicator is provided.

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