JPH0947204A - Self-propelled chemical spraying vehicle - Google Patents
Self-propelled chemical spraying vehicleInfo
- Publication number
- JPH0947204A JPH0947204A JP7224587A JP22458795A JPH0947204A JP H0947204 A JPH0947204 A JP H0947204A JP 7224587 A JP7224587 A JP 7224587A JP 22458795 A JP22458795 A JP 22458795A JP H0947204 A JPH0947204 A JP H0947204A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- spraying
- self
- vehicle
- flow rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Catching Or Destruction (AREA)
- Special Spraying Apparatus (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、均一に薬剤を散
布できる自走式薬剤散布車に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled chemical spraying vehicle capable of uniformly spraying chemicals.
【0002】[0002]
【従来の技術】特開平1−159071号公報では、自
走式薬剤散布車の車速に関係なく、圃場への薬剤の散布
密度の均一化を図るため、車速及び散布流量を検出し
て、実際の散布密度を計算し、これが目標値になるよう
に、ノズルの噴霧圧を制御している。車速は車輪の回転
速度から検出している。2. Description of the Related Art In Japanese Unexamined Patent Publication No. 1-159071, a vehicle speed and a spraying flow rate are actually detected by detecting a vehicle speed and a spraying flow rate in order to equalize a spraying density of a drug on a field regardless of the vehicle speed of a self-propelled drug spraying vehicle. The spraying density of is calculated, and the spray pressure of the nozzle is controlled so that this becomes the target value. The vehicle speed is detected from the rotation speed of the wheels.
【0003】一方、田植機の有効利用を図るため、田植
機台車に、植付け装置に代えて、ブームスプレーヤ等を
装着し、水稲圃場へ薬剤散布を行うことが行われてい
る。On the other hand, in order to effectively utilize the rice transplanter, a boom sprayer or the like is attached to the truck of the rice transplanter instead of the planting device to spray the chemicals on the paddy rice field.
【0004】[0004]
【発明が解決しようとする課題】自走式水田用薬剤散布
車により水稲圃場へ薬剤を散布する場合、水田では自走
式水田用薬剤散布車の車輪のスリップ率がおおむね5〜
20%に達するので、特開平1−159071号公報の
ように、原動機から車輪までの動力伝達系の所定要素の
回転速度を検出しても、その回転速度から求まる車速
は、実際の車速から大幅にずれた値となってしまい、均
一散布を果たすことは困難である。特に、自走式水田用
薬剤散布車では、希釈率の低い濃厚な薬剤を散布するこ
とがあり、そのような場合、スリップ率の大に因る実車
速からの検出車速のずれは、均一散布に大きな悪影響を
与える。DISCLOSURE OF INVENTION Problems to be Solved by the Invention When a chemical is sprayed on a paddy rice field by a self-propelled paddy chemical spraying vehicle, the slip ratio of the wheels of the self-propelled paddy chemical spraying vehicle is generally 5 to about 5 in the paddy field.
Since it reaches 20%, even if the rotational speed of a predetermined element of the power transmission system from the prime mover to the wheels is detected as in Japanese Patent Laid-Open No. 1-159071, the vehicle speed obtained from the rotational speed is significantly different from the actual vehicle speed. However, it is difficult to achieve uniform spraying. In particular, a self-propelled paddy chemical spraying vehicle may spray a concentrated chemical with a low dilution rate.In such a case, the deviation of the detected vehicle speed from the actual vehicle speed due to the large slip ratio is applied uniformly. Have a great adverse effect on.
【0005】また、目標散布流量又は目標噴霧圧等は、
薬剤の種類、作物の種類、生育状況、圃場の状態等、散
布状況により相違するが、特開平1−159071号公
報等では、目標散布流量等を作業者が薬剤の種類や圃場
の状況等から決めて設定する必要がある。Further, the target spray flow rate or target spray pressure, etc.
Although it varies depending on the application condition such as the type of drug, the type of crop, the growth condition, the condition of the field, etc., in Japanese Patent Laid-Open No. 1-159071, the operator determines the target application flow rate from the type of drug and the condition of the field. It is necessary to decide and set.
【0006】この発明の目的は、重要な検出因子となる
車速を正確に検知して、より良好な均一散布を達成でき
る自走式薬剤散布車を提供することである。この発明の
他の目的は、薬剤の種類や作物の種類等の散布状況に応
じた制御を簡単に切替えることができる自走式薬剤散布
車を提供することである。An object of the present invention is to provide a self-propelled chemical spraying vehicle capable of accurately detecting a vehicle speed which is an important detection factor and achieving better uniform spraying. Another object of the present invention is to provide a self-propelled chemical spraying vehicle capable of easily switching the control according to the spraying status such as the type of drug or the type of crop.
【0007】[0007]
【課題を解決するための手段】この発明の自走式薬剤散
布車(10)は次の(a)〜(c)の構成要素を有してい
る。 (a)車輪(16,18)とは別個に設けられて走行地(34)の
表層(38)を転動し車輪(16,18)よりスリップ率の小さい
車速検出用回転体(98) (b)車速検出用回転体(98)の回転速度を検出する回転
速度検出器(82) (c)車速検出用回転体(98)の出力から車速を求めこの
車速に関係して散布流量を制御する散布流量制御手段(7
6)The self-propelled chemical spraying vehicle (10) of the present invention has the following components (a) to (c). (A) A vehicle speed detecting rotor (98) that is provided separately from the wheels (16, 18) and rolls on the surface layer (38) of the running place (34) and has a smaller slip ratio than the wheels (16, 18) (98) ( b) Rotation speed detector (82) that detects the rotation speed of the vehicle speed detection rotor (98) (c) Obtain the vehicle speed from the output of the vehicle speed detection rotor (98) and control the spray flow rate in relation to this vehicle speed Spraying flow control means (7
6)
【0008】自走式薬剤散布車(10)は車輪(16,18)の駆
動により走行地(34)を走行する。車速検出用回転体(98)
は、自走式薬剤散布車(10)の走行に伴って、走行地(34)
の表層(38)を転動し、走行地(34)におけるスリップ率
は、車速検出用回転体(98)の方が車輪(16,18)より小さ
くなる。車速検出用回転体(98)の回転速度は、回転速度
検出器(82)により検出され、車速が回転速度検出器(82)
の検出値に基づいて演算される。散布流量制御手段(76)
は、車速検出用回転体(98)の回転速度から演算された車
速に基づいて散布流量を変更し、車速に関係なく適切な
かつ均一な散布密度になるようにする。The self-propelled chemical spraying vehicle (10) runs on the running place (34) by driving the wheels (16, 18). Rotating body for vehicle speed detection (98)
Along with the traveling of the self-propelled chemical spraying vehicle (10),
The slip ratio of the vehicle speed detection rotating body (98) is smaller than that of the wheels (16, 18) by rolling on the surface layer (38) of the vehicle. The rotation speed of the vehicle speed detection rotating body (98) is detected by the rotation speed detector (82), and the vehicle speed is detected by the rotation speed detector (82).
Is calculated based on the detected value of. Spray flow control means (76)
Changes the spraying flow rate based on the vehicle speed calculated from the rotation speed of the vehicle speed detecting rotating body (98) so that an appropriate and uniform spraying density is obtained regardless of the vehicle speed.
【0009】この発明の別の自走式薬剤散布車(10)で
は、さらに、散布流量制御手段(76)は、薬剤(54)を噴射
するノズル(30)の噴霧圧を変化させて、散布流量を制御
する。In another self-propelled chemical spraying vehicle (10) of the present invention, the spraying flow rate control means (76) further changes the spraying pressure of the nozzle (30) for spraying the chemicals (54) to spray. Control the flow rate.
【0010】散布流量制御手段(76)は、ノズル(30)の噴
霧圧を増減して、薬剤(54)の散布流量を変更する。ノズ
ル(30)の噴霧圧が増大するに連れて、ノズル(30)からの
薬剤(54)の噴射流量が増大し、散布流量が増大すること
になる。The spray flow rate control means (76) increases or decreases the spray pressure of the nozzle (30) to change the spray flow rate of the drug (54). As the spray pressure of the nozzle (30) increases, the injection flow rate of the drug (54) from the nozzle (30) increases and the spraying flow rate increases.
【0011】この発明の別の自走式薬剤散布車(10)は、
さらに、次の(d)及び(e)を有している。 (d)散布状況に対応する車速−噴霧圧の関係データを
記憶し交換自在になっているメモリ手段(80) (e)メモリ手段(80)のデータに基づいて車速からノズ
ル(30)の噴霧圧の目標値を演算してノズル(30)の噴霧圧
を演算目標値に制御する散布流量制御手段(76)Another self-propelled chemical spraying vehicle (10) of the present invention is
Furthermore, it has the following (d) and (e). (D) Memory means (80) for storing the vehicle speed-spray pressure relational data corresponding to the spraying condition and being exchangeable (e) Spraying the nozzle (30) from the vehicle speed based on the data of the memory means (80) Dispersion flow rate control means (76) that calculates the target value of pressure and controls the spray pressure of the nozzle (30) to the calculated target value
【0012】自走式薬剤散布車(10)による圃場(34)への
薬剤(54)の散布に先立ち、薬剤(54)の種類、作物の種
類、生育状況、及び/又は圃場(34)の状態等、散布状況
に対応するメモリ手段(80)が、選択されて、自走式薬剤
散布車(10)へ装着される。メモリ手段(80)には、それに
対応す散布状況時に最適な散布密度を達成するための車
速−噴霧圧の関係データが記憶されている。散布流量制
御手段(76)は、選択されたメモリ手段(80)の車速−噴霧
圧の関係データに照らして検知車速から噴霧圧を演算
し、この演算噴霧圧にノズル(30)の噴霧圧を合わせるよ
う制御する。こうして、作業者は、散布状況に応じたメ
モリ手段(80)を選択して、装着することにより、散布状
況に応じた均一散布のための制御を簡単に設定できる。Prior to the application of the drug (54) to the field (34) by the self-propelled drug spraying vehicle (10), the type of the drug (54), the type of crop, the growth state, and / or the field (34) The memory means (80) corresponding to the spraying state such as the state is selected and mounted on the self-propelled chemical spraying vehicle (10). The memory means (80) stores the vehicle speed-spray pressure relational data for achieving the optimum spraying density in the spraying condition corresponding thereto. The spray flow rate control means (76) calculates the spray pressure from the detected vehicle speed in light of the vehicle speed-spray pressure relationship data of the selected memory means (80), and the spray pressure of the nozzle (30) is calculated as the calculated spray pressure. Control to match. Thus, the operator can easily set the control for uniform spraying according to the spraying status by selecting and mounting the memory means (80) according to the spraying status.
【0013】この発明の別の自走式薬剤散布車(10)で
は、さらに、車速検出用回転体(98)は、走行地(34)の表
層(38)に先端部を引っ掛ける突出棒(102)を周方向へ適
宜間隔で備えている。In another self-propelled chemical spraying vehicle (10) of the present invention, the vehicle speed detecting rotator (98) further includes a protruding rod (102) for hooking the tip end on the surface layer (38) of the running place (34). ) Are provided at appropriate intervals in the circumferential direction.
【0014】車速検出用回転体(98)は、突出棒(102)の
先端部を走行地(34)の表層(38)に引っ掛けつつ、回転す
る。表層(38)への突出棒(102)の先端部の引っ掛けによ
る車速検出用回転体(98)の回転は、回転速度の単なる摩
擦による転動に比し、小さいスリップ率となる。The vehicle speed detecting rotator (98) rotates while hooking the tip of the protruding rod (102) on the surface layer (38) of the running place (34). The rotation of the vehicle speed detecting rotary body (98) due to the hooking of the tip end portion of the protruding rod (102) on the surface layer (38) has a small slip ratio as compared with the rolling of the rotational speed simply due to friction.
【0015】この発明の別の自走式薬剤散布車(10)は、
水稲圃場(34)用である。Another self-propelled chemical spraying vehicle (10) of the present invention is
For paddy field (34).
【0016】自走式薬剤散布車(10)は水稲圃場(34)を車
輪(16,18)により走行し、車速検出用回転体(98)は、自
走式薬剤散布車(10)の走行に伴って、水稲圃場(34)のぬ
かるみ(38)を転動しつつ、移動する。The self-propelled chemical spraying vehicle (10) runs on the paddy rice field (34) by wheels (16, 18), and the vehicle speed detecting rotor (98) runs on the self-propelled chemical spraying vehicle (10). Along with this, the paddy field (34) moves while rolling on the muddy (38).
【0017】この発明の別の自走式薬剤散布車(10)で
は、走行地(34)の表層(38)を摺動して車速検出用回転体
(98)の高さを適切位置に保持する摺動体(104)を有して
いる。In another self-propelled chemical spraying vehicle (10) of the present invention, a vehicle speed detecting rotary member is slid on a surface layer (38) of a running place (34).
It has a sliding body (104) for holding the height of (98) at an appropriate position.
【0018】摺動体(104)は、水稲圃場(34)等の走行地
(34)の表層(38)を摺動する。車速検出用回転体(98)は、
高さ方向へ摺動体(104)と一定の関係に設定されている
結果、走行地(34)に対して所定高さに保持されつつ、走
行地(34)の表層(38)を円滑に転動し、スリップ率をより
小さくされる。The sliding body (104) is a running place such as a paddy rice field (34).
Slide on the surface layer (38) of (34). The vehicle speed detection rotor (98)
As a result of the fixed relationship with the sliding body (104) in the height direction, the surface layer (38) of the running place (34) can be smoothly rolled while being kept at a predetermined height with respect to the running place (34). And the slip rate is made smaller.
【0019】[0019]
【発明の実施の形態】以下、図面を参照してこの発明を
説明する。図6及び図7は自走式水田用薬剤散布車10の
側面図及び背面図である。自走式水田用薬剤散布車10
は、乗用型自走式田植機の田植機台車12と、この後部に
装着されたブームスプレーヤ14とを有している。田植機
台車12は、乗用型自走式田植機では、後部に植付装置を
取り付けられており、自走式水田用薬剤散布車10として
使用する場合は、植付装置を取り外され、代わりにブー
ムスプレーヤ14を取り付けられる。田植機台車12は、前
輪16及び後輪18の駆動により自走し、前輪16は操舵輪を
兼ねる。作業者としての運転者は、田植機台車12の運転
席20へ乗り込む。ブームスプレーヤ14は、薬剤54(図
1)を貯留する薬剤タンク22を有し、後部には、左ブー
ム24、中ブーム26、右ブーム28を備え、左ブーム24及び
右ブーム28は、散布時の拡開位置と収納時の縮閉位置と
に切替自在になっている。複数個のノズル30は、下向き
とされ、左ブーム24、中ブーム26、及び右ブーム28に沿
ってほぼ等間隔で配列されている。往復ポンプ32は、薬
剤タンク22内から薬剤54を吸入して、ノズル30へ圧送
し、ノズル30から薬剤54が噴射される。水田34は、地盤
36と、その上層のぬかるみ38とを含み、稲40はぬかるみ
38に根を広げている。前輪16及び後輪18は、地盤36に支
持され、地盤36との摩擦により地盤36上を転動する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 6 and 7 are a side view and a rear view of the self-propelled paddy chemical spray vehicle 10. Self-propelled paddy chemical sprayer 10
Has a rice transplanter truck 12 of a riding type self-propelled rice transplanter, and a boom sprayer 14 attached to the rear portion thereof. The rice transplanter trolley 12 is a riding type self-propelled rice transplanter, and a planting device is attached to the rear part, and when used as a self-propelled paddy chemical spraying vehicle 10, the planting device is removed, and instead. Boom sprayer 14 can be attached. The rice transplanter truck 12 is self-propelled by driving front wheels 16 and rear wheels 18, and the front wheels 16 also serve as steered wheels. The driver as an operator gets into the driver's seat 20 of the rice transplanter truck 12. The boom sprayer 14 has a medicine tank 22 that stores a medicine 54 (FIG. 1), and has a left boom 24, a middle boom 26, and a right boom 28 at the rear portion thereof. The switch can be switched between the expanded position and the closed position when stored. The plurality of nozzles 30 face downward and are arranged along the left boom 24, the middle boom 26, and the right boom 28 at substantially equal intervals. The reciprocating pump 32 inhales the medicine 54 from the medicine tank 22, pressure-feeds it to the nozzle 30, and ejects the medicine 54 from the nozzle 30. Paddy 34 is the ground
The rice 40 is mud containing 36 and the upper layer 38
Has rooted in 38. The front wheels 16 and the rear wheels 18 are supported by the ground 36 and roll on the ground 36 due to friction with the ground 36.
【0020】図1はブームスプレーヤ14の薬剤系統図で
ある。ブームスプレーヤ14(図5及び図6)のPTO軸
46の回転動力は、プーリ48、ベルト50、及びプーリ52を
介して往復ポンプ32のクランク軸へ伝達される。往復ポ
ンプ32は、プーリ52からの回転動力により駆動され、薬
剤タンク22内の薬剤54を、ストレーナ56及び吸入管路58
を介して吸入し、吐出管路62へ吐出する。調圧弁60は、
往復ポンプ32の吐出側へ接続され、吐出管路62の液圧を
調整する。余液管路64は調圧弁60から余液を薬剤タンク
22へ戻す。各ノズルパイプ66は、図7の左ブーム24、中
ブーム26、及び右ブーム28のそれぞれに吊設され、各ノ
ズルパイプ66には、複数個のノズル30がほぼ等間隔に下
向きに取付けられている。吐出管路62は、下流側で各ノ
ズルパイプ66に対応して分岐し、往復ポンプ32の吐出口
からの薬剤54を各ノズルパイプ66へ導く。全体開閉コッ
ク68は、吐出管路62の上流側の全体部に配設され、該全
体部の開閉を行う。部分開閉コック70は、吐出管路62の
下流側の各枝部に配設され、該枝部の開閉を行う。制御
装置72は、1個のRAMカード80を挿入、装着されるカ
ード挿入スロット74と、演算及び制御信号を生成する演
算・制御部76とを有している。バッテリ78は制御装置72
へ電力を供給する。RAMカード80は、散布に使用する
薬剤54の種類、稲40の生育時期、及び/又は水田34の状
態等の散布状況ごとに1枚ずつ用意され、各RAMカー
ド80には、各散布状況において最適な散布密度を達成す
る車速−噴霧圧の関係データを記憶されている。電磁ピ
ックアップ82は車速に対応する周波数のパルスを生成
し、圧力センサ84は吐出管路62の全体部における液圧を
検出する。電磁ピックアップ82及び圧力センサ84の出力
は演算・制御部76ヘ送られ、正逆転自在のサーボモータ
86は、演算・制御部76からの制御信号により作動して、
調圧弁60の調圧値を変更する。FIG. 1 is a drug system diagram of the boom sprayer 14. Boom sprayer 14 (Figs. 5 and 6) PTO shaft
The rotational power of 46 is transmitted to the crankshaft of the reciprocating pump 32 via the pulley 48, the belt 50, and the pulley 52. The reciprocating pump 32 is driven by the rotational power from the pulley 52 to transfer the medicine 54 in the medicine tank 22 to the strainer 56 and the suction conduit 58.
It is inhaled through and is discharged to the discharge pipe line 62. The pressure regulating valve 60 is
It is connected to the discharge side of the reciprocating pump 32 and adjusts the hydraulic pressure of the discharge pipe line 62. The residual liquid line 64 is a chemical tank for the residual liquid from the pressure regulating valve 60
Return to 22. Each nozzle pipe 66 is hung on each of the left boom 24, the middle boom 26, and the right boom 28 of FIG. 7, and a plurality of nozzles 30 are attached to each nozzle pipe 66 downward at substantially equal intervals. There is. The discharge pipe line 62 branches on the downstream side corresponding to each nozzle pipe 66, and guides the medicine 54 from the discharge port of the reciprocating pump 32 to each nozzle pipe 66. The entire opening / closing cock 68 is arranged in the entire upstream side portion of the discharge pipe 62 and opens / closes the entire portion. The partial opening / closing cock 70 is arranged at each branch portion on the downstream side of the discharge pipeline 62 and opens / closes the branch portion. The control device 72 has a card insertion slot 74 into which one RAM card 80 is inserted and mounted, and an arithmetic / control unit 76 for generating arithmetic and control signals. Battery 78 is control device 72
Supply power to. One RAM card 80 is prepared for each spraying condition such as the type of the medicine 54 used for spraying, the growing time of the rice 40, and / or the state of the paddy field 34. Stored is vehicle speed-spray pressure relationship data that achieves optimum spray density. The electromagnetic pickup 82 generates a pulse having a frequency corresponding to the vehicle speed, and the pressure sensor 84 detects the hydraulic pressure in the entire discharge pipe 62. The outputs of the electromagnetic pickup 82 and the pressure sensor 84 are sent to the calculation / control unit 76, and the servo motor can rotate forward and backward.
86 operates by a control signal from the arithmetic / control unit 76,
Change the pressure adjustment value of pressure adjustment valve 60.
【0021】図2及び図3は車速検出装置90の側面図及
び背面図である。ロッド92は、上端部において枢支ピン
94を介してフレーム95に枢支され、中間部のステー97に
おいて上げ下ろしワイヤ96を掛けられ、上げ下ろしワイ
ヤ96の引張に従って枢支ピン94の周りに揺動する。回転
体98は、ロッド92の下端部の二股部99の間に挿入されて
二股部99の下端部に回転自在に軸支される円板100と、
円板100の周方向へ等角度間隔で配列されて円板100から
放射方向へ突出する複数個の突出棒102とを有してい
る。突出棒102の先端は、水田34のぬかるみ38に適切に
引っ掛かるように、尖らされている。電磁ピックアップ
82は、円板100の回転に同期してパルスを生成する。2 and 3 are a side view and a rear view of the vehicle speed detecting device 90. The rod 92 has a pivot pin at the upper end.
It is pivotally supported by the frame 95 via 94, and the raising and lowering wire 96 is hooked on the stay 97 in the middle part, and swings around the pivoting pin 94 according to the pulling of the raising and lowering wire 96. The rotating body 98 is a disc 100 that is inserted between the forked portions 99 at the lower end of the rod 92 and is rotatably supported by the lower end of the forked portions 99.
A plurality of protruding rods 102 are arranged at equal angular intervals in the circumferential direction of the disc 100 and project from the disc 100 in the radial direction. The tip of the protruding rod 102 is sharpened so as to be properly hooked on the muddy portion 38 of the paddy field 34. Electromagnetic pickup
82 generates a pulse in synchronization with the rotation of the disc 100.
【0022】図4は摺動板104の平面図である。図2〜
図4において、摺動板104は、ステー108を介して二股部
99の下端部に結合し、前端部には前方へ向かって斜めに
上昇する反り部106を有している。長孔110は、摺動板10
4の水平部に形成され、回転体98の回転中に突出棒102を
摺動板104の下側へ突出自在にしている。散布作業中
は、上げ下ろしワイヤ96が弛緩状態にされ、摺動板104
はぬかるみ38の上面に着き、非散布時では、上げ下ろし
ワイヤ96が上方へ引かれ、回転体98及び摺動板104は地
面より適切な高さへ浮かされる。FIG. 4 is a plan view of the sliding plate 104. Figure 2
In FIG. 4, the sliding plate 104 is a forked portion via a stay 108.
A warp portion 106 that is coupled to the lower end portion of 99 and that obliquely rises forward is provided at the front end portion. The long hole 110 is the sliding plate 10
It is formed in the horizontal part of 4 and allows the protruding rod 102 to freely protrude to the lower side of the sliding plate 104 while the rotating body 98 is rotating. During the spraying work, the raising and lowering wire 96 is set to the loose state, and the sliding plate 104
When it reaches the upper surface of the muddy mouse 38 and when it is not sprayed, the raising and lowering wire 96 is pulled upward, and the rotating body 98 and the sliding plate 104 are floated to an appropriate height above the ground.
【0023】図5は調圧弁60の構造図である。調圧口11
6は、往復ポンプ32の吐出口の近傍において吐出管路62
へ連通し、余液口118は余液管路64へ接続されている。
ボール120は、余液口118側から弁座122へ就座自在にな
っていて、調圧口116と余液口118との接続を制御する。
弁棒124は、上端部においてガイド132に嵌入し、ボール
120と一体的に上下動する。ベローズ126は、弁棒124の
変位を許容しつつ、弁棒124の周部のシールを行う。ハ
ウジング128内には、上側から順番に、ばね座134、圧縮
コイルばね130、及びガイド132が嵌装され、ばね座134
及びガイド132はそれぞれ弁棒124及びねじ136により圧
縮コイルばね130側への押圧力を受ける。ねじ136は、ハ
ウジング128の上端部に螺合し、回転に伴ってハウジン
グ128内への挿入量を変化して、圧縮コイルばね130の予
荷重、すなわち調圧弁60の調圧値を調整する。減速機13
8は、ブラケット140を介してハウジング128の上端部に
固定され、回転アーム142を介してねじ136を回転させ
る。減速機138は、サーボモータ86からの回転を減速し
た回転速度で回転アーム142を回転させ、ねじ136の螺進
量を制御する。FIG. 5 is a structural diagram of the pressure regulating valve 60. Pressure adjusting port 11
6 is a discharge pipe line 62 near the discharge port of the reciprocating pump 32.
The residual liquid port 118 is connected to the residual liquid pipe 64.
The ball 120 is freely seated on the valve seat 122 from the spill port 118 side and controls the connection between the pressure adjusting port 116 and the spill port 118.
The valve rod 124 fits into the guide 132 at the upper end,
It moves up and down together with 120. The bellows 126 seals the peripheral portion of the valve rod 124 while allowing the displacement of the valve rod 124. In the housing 128, a spring seat 134, a compression coil spring 130, and a guide 132 are fitted in order from the upper side, and the spring seat 134 is attached.
The guide 132 and the guide 132 receive a pressing force to the compression coil spring 130 side by the valve rod 124 and the screw 136, respectively. The screw 136 is screwed onto the upper end of the housing 128, and changes the amount of insertion into the housing 128 with rotation, thereby adjusting the preload of the compression coil spring 130, that is, the pressure adjustment value of the pressure adjustment valve 60. Reducer 13
8 is fixed to the upper end of the housing 128 via a bracket 140, and rotates a screw 136 via a rotating arm 142. The speed reducer 138 rotates the rotary arm 142 at a rotational speed that is the speed at which the rotation from the servo motor 86 has been reduced, and controls the amount of advance of the screw 136.
【0024】図8は例えば水稲圃場用に用意される3種
のRAMカード80に記憶されている車速(実車速)−噴
霧圧の関係特性を示すグラフである。RAMカードA〜
Cは次の散布状況に設定されている。各散布状況下、最
適な散布密度を達成する車速−噴霧圧の関係が各RAM
カードA〜Cに記憶されている。 A:10アールに100リットル B:10アールに50リットル C:10アールに25リットルFIG. 8 is a graph showing the relationship between vehicle speed (actual vehicle speed) and spray pressure stored in three types of RAM cards 80 prepared for paddy rice fields, for example. RAM card A ~
C is set to the following spraying situation. The relationship between the vehicle speed and the spray pressure that achieves the optimum spray density under each spray condition is shown in each RAM.
It is stored in the cards A to C. A: 100 liters for ares B: 50 liters for arels C: 25 liters for arels
【0025】自走式水田用薬剤散布車10の作用について
説明する。自走式水田用薬剤散布車10の運転を行う散布
作業者は、薬剤54の種類、稲40の生育状況、水田34の状
態等の散布状況を的確に把握し、その散布状況に対応す
るRAMカード80を選択する。水田34用には、RAMカ
ード80は図8のように3種用意され、その中から最も適
切なRAMカード80が選択され、制御装置72のカード挿
入スロット74に装着される。上げ下ろしワイヤ96が弛緩
され、車速検出装置90は、重力により枢支ピン94の周り
を下方へ揺動し、摺動板104がぬかるみ38の表面に着地
する。全体開閉コック68及び全部の部分開閉コック70が
開いて、自走式水田用薬剤散布車10を走行させると、薬
剤タンク22内の薬剤54は、往復ポンプ32により吸引され
て、吐出管路62を介して左右方向へ水平一列の各ノズル
パイプ66へ送られ、各ノズルパイプ66のノズル30から水
田34へ噴射される。The operation of the self-propelled paddy chemical spray vehicle 10 will be described. The spraying operator who operates the self-propelled paddy chemical spraying vehicle 10 accurately grasps the spraying status such as the type of the chemical 54, the growth status of the rice 40, the state of the paddy field 34, and the RAM corresponding to the spray status. Select card 80. For the paddy field 34, three kinds of RAM cards 80 are prepared as shown in FIG. 8, and the most suitable RAM card 80 is selected from the RAM cards 80 and mounted in the card insertion slot 74 of the control device 72. The raising and lowering wire 96 is relaxed, and the vehicle speed detecting device 90 swings downward around the pivot pin 94 due to gravity, and the sliding plate 104 lands on the surface of the muddy portion 38. When the whole opening / closing cock 68 and all the partial opening / closing cocks 70 are opened and the self-propelled paddy chemical spray vehicle 10 is run, the chemical 54 in the chemical tank 22 is sucked by the reciprocating pump 32, and the discharge conduit 62 Is sent to each horizontal horizontal row of nozzle pipes 66 through the nozzles, and is jetted from the nozzles 30 of each nozzle pipe 66 to the paddy field 34.
【0026】田植機台車12の前輪16及び後輪18は、ぬか
るみ38を貫いて、ぬかるみ38の下の地盤36に接触して、
回転し、自走式水田用薬剤散布車10を水田34において前
進させる。その際、摺動板104は、反り部106によりぬか
るみ38への潜り込みを防止されつつ、ぬかるみ38の表面
を摺動して、回転体98を適切な高さに保持する。円板10
0の突出棒102は、摺動板104の長孔110を通過して、先端
においてぬかるみ38の表面に突き刺さって、ぬかるみ38
に引っ掛かり状態になり、自走式水田用薬剤散布車10の
前進に伴って円板100を回転させる。回転体98は、少な
くとも前輪16及び後輪18よりは小さいスリップ率で、あ
るいはほぼスリップ無しで水田34を転動する。電磁ピッ
クアップ82は、円板100の回転に同期したパルス、すな
わちほぼ真の車速に近い車速に比例する周波数のパルス
を生成する。The front wheels 16 and the rear wheels 18 of the rice transplanter bogie 12 penetrate through the mud 38 and come into contact with the ground 36 below the mud 38,
It rotates and advances the self-propelled paddy chemical spray vehicle 10 in the paddy field 34. At this time, the sliding plate 104 slides on the surface of the muddy portion 38 while holding the warp portion 106 from slipping into the muddy portion 38, and holds the rotating body 98 at an appropriate height. Disk 10
The protruding rod 102 of 0 passes through the long hole 110 of the sliding plate 104, pierces the surface of the muddy 38 at the tip, and the muddy 38
The disk 100 is rotated as the self-propelled paddy field chemical spraying vehicle 10 moves forward. The rotating body 98 rolls in the paddy field 34 with a slip ratio smaller than that of at least the front wheels 16 and the rear wheels 18, or with almost no slip. The electromagnetic pickup 82 generates a pulse synchronized with the rotation of the disc 100, that is, a pulse having a frequency proportional to a vehicle speed that is substantially close to the true vehicle speed.
【0027】演算・制御部76は、電磁ピックアップ82及
び圧力センサ84から車速に比例する周波数のパルス及び
吐出管路62における液圧を入力される。さらに、カード
挿入スロット74のRAMカード80のデータに照らして車
速から噴霧圧を演算し、圧力センサ84の検出圧が演算値
となるように、サーボモータ86へ制御信号を送って、調
圧弁60の圧縮コイルばね130の予荷重を変更する。こう
して、水田34における薬剤54の散布密度は、車速に関係
なく所望の値になる。The calculation / control unit 76 receives a pulse having a frequency proportional to the vehicle speed and a hydraulic pressure in the discharge conduit 62 from the electromagnetic pickup 82 and the pressure sensor 84. Further, the spray pressure is calculated from the vehicle speed in accordance with the data of the RAM card 80 in the card insertion slot 74, and a control signal is sent to the servo motor 86 so that the detected pressure of the pressure sensor 84 becomes the calculated value, and the pressure regulating valve 60 The preload of the compression coil spring 130 is changed. Thus, the spraying density of the chemical agent 54 in the paddy field 34 becomes a desired value regardless of the vehicle speed.
【0028】ブームスプレーヤ14を畑地で使用するとき
は、ブームスプレーヤ14を田植機台車12の代わりに農業
用トラクタに装着する。また、畑地での突出棒102及び
摺動板104の損傷を回避するために、回転体98を外し
て、ローラを二股部99に軸支し、そのローラの回転速度
を電磁ピックアップ82により検出するようにして、使用
する。When the boom sprayer 14 is used in the field, the boom sprayer 14 is attached to the agricultural tractor instead of the rice transplanter truck 12. Further, in order to avoid damage to the protruding rod 102 and the sliding plate 104 in the field, the rotating body 98 is removed, the roller is pivotally supported by the forked portion 99, and the rotation speed of the roller is detected by the electromagnetic pickup 82. To use.
【0029】RAMカード80に代えて、フロッピディス
ク、CD−ROM等、その他の小型、携帯、及び交換自
在のメモリ手段を使用することも可能である。Instead of the RAM card 80, it is also possible to use other small, portable and exchangeable memory means such as a floppy disk, a CD-ROM or the like.
【図1】ブームスプレーヤの薬剤系統図である。FIG. 1 is a drug system diagram of a boom sprayer.
【図2】車速検出装置の側面図である。FIG. 2 is a side view of a vehicle speed detection device.
【図3】車速検出装置の背面図である。FIG. 3 is a rear view of the vehicle speed detection device.
【図4】摺動板の平面図である。FIG. 4 is a plan view of a sliding plate.
【図5】調圧弁の構造図である。FIG. 5 is a structural diagram of a pressure regulating valve.
【図6】自走式水田用薬剤散布車の側面図である。FIG. 6 is a side view of a self-propelled paddy field chemical spraying vehicle.
【図7】自走式水田用薬剤散布車の背面図である。FIG. 7 is a rear view of the self-propelled paddy field chemical spraying vehicle.
【図8】例えば水稲圃場用に用意される3種のRAMカ
ードに記憶されている車速−噴霧圧の関係特性を示すグ
ラフである。FIG. 8 is a graph showing vehicle speed-spray pressure relationship characteristics stored in, for example, three types of RAM cards prepared for paddy field.
10 自走式水田用薬剤散布車(自走式薬剤散布車) 16 前輪(車輪) 18 後輪(車輪) 30 ノズル 34 水田(走行地、水稲圃場、圃場) 38 ぬかるみ(表層) 54 薬剤 76 演算・制御部(散布流量制御手段) 80 RAMカード(メモリ手段) 82 電磁ピックアップ(回転速度検出器) 98 回転体(車速検出用回転体) 102 突出棒 104 摺動板(摺動体) 10 Self-propelled chemical sprayer for paddy field (self-propelled chemical sprayer) 16 Front wheel (wheel) 18 Rear wheel (wheel) 30 Nozzle 34 Paddy field (running area, paddy field, field) 38 Muddy (surface layer) 54 Chemical agent 76 Calculation -Control unit (dispersion flow rate control means) 80 RAM card (memory means) 82 Electromagnetic pickup (rotation speed detector) 98 Rotating body (rotating body for vehicle speed detection) 102 Projection rod 104 Sliding plate (sliding body)
Claims (6)
て走行地(34)の表層(38)を転動し前記車輪(16,18)より
スリップ率の小さい車速検出用回転体(98)、(b)前記
車速検出用回転体(98)の回転速度を検出する回転速度検
出器(82)、及び(c)車速検出用回転体(98)の出力から
車速を求めこの車速に関係して散布流量を制御する散布
流量制御手段(76)、を有していることを特徴とする自走
式薬剤散布車。1. (a) For detecting a vehicle speed which is provided separately from the wheels (16, 18) and rolls on the surface layer (38) of the running place (34) and has a smaller slip ratio than the wheels (16, 18). Rotating body (98), (b) A vehicle speed is obtained from the output of the rotating speed detector (82) for detecting the rotating speed of the vehicle speed detecting rotating body (98), and (c) the vehicle speed detecting rotating body (98). A self-propelled chemical spraying vehicle having spraying flow rate control means (76) for controlling the spraying flow rate in relation to the vehicle speed.
を噴射するノズル(30)の噴霧圧を変化させて、散布流量
を制御することを特徴とする請求項1記載の自走式薬剤
散布車。2. The spraying flow rate control means (76) comprises a medicine (54).
The self-propelled chemical spraying vehicle according to claim 1, wherein the spraying flow rate is controlled by changing the spraying pressure of the nozzle (30) for injecting the.
の関係データを記憶し交換自在になっているメモリ手段
(80)、及び(e)前記メモリ手段(80)のデータに基づい
て車速から噴霧圧の目標値を演算して前記ノズル(30)の
噴霧圧を演算目標値に制御する前記散布流量制御手段(7
6)、を有していることを特徴とする請求項2記載の自走
式薬剤散布車。3. (d) Memory means for storing and exchanging vehicle speed-spray pressure relational data corresponding to a spraying condition.
(80), and (e) the spray flow rate control means for calculating a target value of the spray pressure from the vehicle speed based on the data of the memory means (80) and controlling the spray pressure of the nozzle (30) to the calculated target value. (7
6. The self-propelled chemical spraying vehicle according to claim 2, further comprising:
4)の表層(38)に先端部を引っ掛ける突出棒(102)を周方
向へ適宜間隔で備えていることを特徴とする請求項1〜
3のいずれかに記載の自走式薬剤散布車。4. The vehicle speed detecting rotary body (98) is mounted on a running place (3).
4. The surface layer (38) of 4) is provided with projecting rods (102) for hooking the tip portion at appropriate intervals in the circumferential direction.
3. The self-propelled chemical spraying vehicle according to any one of 3 above.
請求項1〜4のいずれかに記載の自走式薬剤散布車。5. The self-propelled chemical spraying vehicle according to any one of claims 1 to 4, which is for a paddy rice field (34).
速検出用回転体(98)の高さを適切位置に保持する摺動体
(104)を有していることを特徴とする請求項5記載の自
走式薬剤散布車。6. A sliding body which slides on a surface layer (38) of a running place (34) and holds the height of the vehicle speed detecting rotary body (98) at an appropriate position.
The self-propelled chemical spraying vehicle according to claim 5, which has (104).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7224587A JPH0947204A (en) | 1995-08-10 | 1995-08-10 | Self-propelled chemical spraying vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7224587A JPH0947204A (en) | 1995-08-10 | 1995-08-10 | Self-propelled chemical spraying vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0947204A true JPH0947204A (en) | 1997-02-18 |
Family
ID=16816076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7224587A Pending JPH0947204A (en) | 1995-08-10 | 1995-08-10 | Self-propelled chemical spraying vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0947204A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999037405A1 (en) * | 1998-01-26 | 1999-07-29 | Hedegaard Albert | A sprayer boom |
WO2006021207A1 (en) * | 2004-05-10 | 2006-03-02 | Frank Poulsen | System for selective treatment of plants in row |
JP2006174818A (en) * | 2004-12-20 | 2006-07-06 | Circle Iron Work Co Ltd | Apparatus for confirming and regulating amount delivered in fertilizer/seeder and chemical sprayer by controlling rotational speed of motor for driving delivery roller |
JP2008178819A (en) * | 2007-01-25 | 2008-08-07 | Maruyama Mfg Co Ltd | Controller for spraying of chemical |
JP2012196157A (en) * | 2011-03-18 | 2012-10-18 | Yanmar Co Ltd | Spray-working machine |
-
1995
- 1995-08-10 JP JP7224587A patent/JPH0947204A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999037405A1 (en) * | 1998-01-26 | 1999-07-29 | Hedegaard Albert | A sprayer boom |
US6454183B1 (en) | 1998-01-26 | 2002-09-24 | Albert Hedegaard | Sprayer boom |
WO2006021207A1 (en) * | 2004-05-10 | 2006-03-02 | Frank Poulsen | System for selective treatment of plants in row |
US8027770B2 (en) | 2004-05-10 | 2011-09-27 | Frank Poulsen | System for selective treatment of plants in a row |
JP2006174818A (en) * | 2004-12-20 | 2006-07-06 | Circle Iron Work Co Ltd | Apparatus for confirming and regulating amount delivered in fertilizer/seeder and chemical sprayer by controlling rotational speed of motor for driving delivery roller |
JP4693032B2 (en) * | 2004-12-20 | 2011-06-01 | 日本甜菜製糖株式会社 | How to adjust the feeding amount |
JP2008178819A (en) * | 2007-01-25 | 2008-08-07 | Maruyama Mfg Co Ltd | Controller for spraying of chemical |
JP2012196157A (en) * | 2011-03-18 | 2012-10-18 | Yanmar Co Ltd | Spray-working machine |
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