JPS5813301A - Draft control apparatus of agricultural tractor - Google Patents

Draft control apparatus of agricultural tractor

Info

Publication number
JPS5813301A
JPS5813301A JP11102981A JP11102981A JPS5813301A JP S5813301 A JPS5813301 A JP S5813301A JP 11102981 A JP11102981 A JP 11102981A JP 11102981 A JP11102981 A JP 11102981A JP S5813301 A JPS5813301 A JP S5813301A
Authority
JP
Japan
Prior art keywords
draft
indicator
sensor
agricultural tractor
tractor
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
Application number
JP11102981A
Other languages
Japanese (ja)
Inventor
吉藤 博章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Agricultural Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanmar Agricultural Equipment Co Ltd filed Critical Yanmar Agricultural Equipment Co Ltd
Priority to JP11102981A priority Critical patent/JPS5813301A/en
Publication of JPS5813301A publication Critical patent/JPS5813301A/en
Pending legal-status Critical Current

Links

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  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Agricultural Machines (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は例えばトップリンク及びロアーリンクからなる
三点リンク機構を介してトラクタの後方に、ロータリ耕
耘作業機型いけプラウ耕耘作業機詰装置に関し、ロアー
リンクに付加される牽引抵抗力を計測するドラフトセン
サの計測信号を表示するためのドラフト表示器と、前記
ドラフト表示器の基準値を是正する零点調節器とを備え
、前記ロアーリンクを介して連結する農作業機を一定姿
勢に保持した状面−7−yラフト表示器及び零点調節s
i用vでドラフトセンサσ)バランス調節を行すうもの
7゛、前記ドラフトセンサの牽引制御絶対1をドラフト
表示器を用いて容易に認識し得、前記農作業機の傅降操
作並びに耕耘作業時に参けるプラウ調節などを簡便に行
りえ、農用トラクタの沈下及びスリップなどを防いT適
正に走行$1し得ると共に、前記ドラフト表示器を兼用
することによってドラフトセンサのバランス調節を零点
調節器を用いて極めて簡単に行ない得、農作業開始時=
flHはその途中に$1いてドラフトセンサのt14J
[”化などに応じてドラフトセンサによって検出する牽
引抵抗力の基準値を簡潔な操作″r適正に得らnるよう
にした農用トラクタの牽引制御装置を提供しようとする
ものTある。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary tiller-type plow tiller loading device that is attached to the rear of a tractor via a three-point linkage mechanism consisting of, for example, a top link and a lower link. A draft indicator for displaying a measurement signal of a draft sensor that measures traction resistance force, and a zero point adjuster for correcting a reference value of the draft indicator, and the agricultural machine connected via the lower link is fixed at a certain level. State held in position -7-y raft indicator and zero point adjustment s
A draft sensor σ) that performs balance adjustment in i and v, and the traction control absolute 1 of the draft sensor can be easily recognized using a draft indicator, and can be used for reference during lowering operation of the agricultural machine and plowing work. It is possible to easily adjust the plow, etc., prevent sinking and slipping of the agricultural tractor, and ensure proper running of the agricultural tractor.By also serving as the draft indicator, the balance of the draft sensor can be adjusted using the zero point adjuster. It is very easy to do, and when you start farming =
flH has a $1 draft sensor t14J on the way.
It is an object of the present invention to provide a traction control device for an agricultural tractor in which a standard value of traction resistance force detected by a draft sensor can be appropriately obtained by a simple operation.

以下本発明の実施例を図面に基ついて詳述する第1図は
トラクタtllの後方に農作業機Tあるプラウ耕耘作業
機(21を装設し念側面図1゛あわ、図中131はトラ
クタillのエンリン、(4)はIfri記エン:2ン
(31に連設するクラ7千ケース、(5)は前記クララ
生ケース14)に連設するミッションケース、+61H
f1輪、(7)ケ後輪、(8)は前記ミッションケース
(61の両側に車軸ケース191を介して突設させる後
車軸、1101は前記ミッションケース(5)の後側に
突設させるPTO軸、+lll ij前記ミッションケ
ース(5)に上載する油圧ケース、(1zは前記油圧ケ
ース1111上方に拳付ける運転席、(131は前記運
転席(121前方に設ける操向ハンVルであhl リフ
トアームl141及びボコンションコントロールレパー
(151を前記油圧ケース1111に敢付け、前記レバ
−+151操作によってリフトアーム(14)を昇降揺
−させるように形成する。
Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 shows a side view of a plow cultivating machine (21) equipped with an agricultural machine T behind a tractor tll. In the figure, 131 is a tractor (4) is a 7,000 case connected to Ifri En: 2 (31), (5) is a mission case connected to the above case 14), +61H
f1 wheel, (7) rear wheels, (8) a rear axle protruding from both sides of the transmission case (61 via the axle case 191), and 1101 a PTO protruding from the rear side of the transmission case (5). (1z is the driver's seat that is placed above the hydraulic case 1111, (131 is the steering handle provided in front of the driver's seat (121); hl lift An arm l141 and a bocontion control lever (151) are attached to the hydraulic case 1111 so that the lift arm (14) can be raised and lowered by operating the lever +151.

第1図及び第2図に示す如く、多連形のプラウ(16)
・・・並びに尾輪171をプラウ耕耘作業機(2)に備
え、左右一対のロアーリンク+18+J91.並びにト
ップリンク:・: 蜘からなる三点リンク機構嬶)を介してトラクタil+
の後方に血記作業機(2)を昇降可能に装設する。上記
油田ケース+111の後側にトップリンクヒン’;dを
介してトップリンク(20)を、また機体の一部を構成
するミッションケース(5)両側の車軸ケースl!31
 +91にロアーリンクシャフト+231 +231 
i介して左右のロアーリンクa81 J9) f夫々連
結させると共に、前記ロアーリンク+181491にリ
フトロッド1241 (261’に介してリフトアーム
11411141 f連結させ、前20アーリンク+1
81 J91中間にボルト及び接着剤などによってドラ
フトセンサ1261 +261を一体的に取付け、前記
プラウ耕耘作業機12)の牽引抵抗力によってロアーリ
ンク1181J91に生じる歪を前記センサ(2のによ
って検出するように形成する。
As shown in Figures 1 and 2, a multiple plow (16)
. . . and a tail wheel 171 are provided on the plow cultivating machine (2), and a pair of left and right lower links +18+J91. And the top link: ・: The tractor il+ via the three-point linkage mechanism consisting of a spider
A blood log work machine (2) is installed at the rear of the machine so that it can be raised and lowered. The top link (20) is attached to the rear side of the oil field case +111 via the top link hinge';d, and the axle case l on both sides of the mission case (5) that forms part of the fuselage! 31
+91 + lower link shaft +231 +231
The left and right lower links a81 J9) f are connected through i, and the lift rod 1241 is connected to the lower link +181491 (lift arm 11411141 f is connected through 261', and the front 20 lower links +1
A draft sensor 1261 + 261 is integrally attached to the middle of 81 J91 with bolts and adhesive, and is formed so that the strain caused in the lower link 1181J91 by the traction resistance force of the plow cultivating machine 12) is detected by the sensor (2). do.

第3図に示す如く、上記リフトアーム(14)を揺動駆
動させる油圧シリンダ(271を上記油圧ケース旧1に
内設させると共に、上記エンジン(31によって1動す
る油圧ポンプ12杓を前記シリンダレηに接続させる3
位首3ボ一トg電磁油圧切換弁であるソレノイドバルブ
29)を股は、前記ポンプ128)の油圧力によってリ
フトアーム1141 i介してロアーリンクt181 
J9) f 井降制御するように形成する。
As shown in FIG. 3, a hydraulic cylinder (271) for swinging the lift arm (14) is installed inside the hydraulic case old 1, and a hydraulic pump 12, which is driven once by the engine (31), is connected to the cylinder η. Connect to 3
The solenoid valve 29), which is an electrohydraulic switching valve, is connected to the lower link t181 via the lift arm 1141i by the hydraulic pressure of the pump 128).
J9) f Formed to control Ibori.

第4図に示す如く、上記rラフトセンサー澗は抵抗器+
30) 13111321(331fブリツzン接続し
た歪ゲージ(舖ヲ含み、前記歪ゲー:ン(至)の計測信
号を変換出力する差動アン−/ Flll+ 2備える
と共に、ロアーリンク、18N91に付加さnる牽引抵
抗力である歪ゲージ@の計測信誉ヲ表示するためのドラ
フト表示器!361を前記アンフ回の出力側に接続させ
、そして前記ドラフト表示器(至)の4flE値(零表
示)を是正する;点調節器@全歪ゲージ(財)に接続さ
せ、ロアーリンク−国、19)に付加される牽引抵抗力
が零の状態でrラフト表示器13filが零になるよう
に;点調節器のを操作し、ドラフトセンサである歪ゲー
:)(至)のバランス調節を行い、前記歪ゲーコン財1
などの特性変化並びに温度変化などによる計測誤差を補
正するように形成する。17t、上記作業機(21の牽
引抵抗が適正負荷で上記歪ゲー:)(至)の出力が設定
以下である刀)否かを判定するための制御回路1331
i設け、前記歪ゲーコン財1の出力検出値を設定する牽
引抵抗調釦I印を前記回路■に備えると共に、差動アン
゛し■の出力側を前記回路■に、また前記回iシ■をソ
レノイドバルブレ9)の各ソレノイ’ (29a )(
29b)に夫々電気接続させ、前記作業機(2)の牽引
抵抗が設定以上に増加したときにソレノイドバルブ12
9)を防換えてリフトアーム(14)を上昇駆動し、前
記作業機(2)を適宜持上げるように形成する。前記ソ
レノイドバルブc29)のソレノイド(29a )(2
9b )に電気接続させる上昇及び下降スイッチ+40
11411 iポ受ジョンコントロールレバー 115
1に連動連結させ、該レバー+151によって各スイッ
チ(4■(411のいずれかをオン作動させ、手[lE
l]操作によってリフトアームf141 f適宜昇降駆
動すると共に、前記制御面w!I■にブザー+421を
接続さv1前記作業機121の牽引抵抗が増大して前記
回路■にリフトアーム(14)上昇出力か生じたとき、
前記回路■のその上昇出力によって前記ブザー(必を鳴
らせて牽引過負荷を報知するように形成するものである
As shown in FIG.
30) 13111321 (includes a strain gauge connected to the 331f strain gauge), is equipped with a differential amplifier/Fllll+ 2 that converts and outputs the measurement signal of the strain gauge, and is attached to the lower link and 18N91. A draft indicator !361 for displaying the measurement confidence of the strain gauge @, which is the traction resistance force, is connected to the output side of the amplifier circuit, and the 4flE value (zero display) of the draft indicator (to) is corrected. Connect it to the point regulator @ Total Strain Gauge (Incorporated) so that the r raft indicator 13fil becomes zero when the traction resistance force added to the lower link country, 19) is zero; Point regulator , adjust the balance of the draft sensor, the strain gauge :) (to), and adjust the balance of the strain gauge
It is formed to correct measurement errors due to characteristic changes such as temperature changes, etc. 17t, a control circuit 1331 for determining whether or not the above-mentioned working machine (the sword in which the traction resistance of 21 is an appropriate load and the output of the above-mentioned strain game: ) (to) is below the setting)
A traction resistance adjustment button I mark for setting the output detection value of the strain gauge controller 1 is provided in the circuit (2), and the output side of the differential amplifier (2) is connected to the circuit (2), and the output side of the differential amplifier (2) is connected to the circuit (2). Solenoid valve valve 9) for each solenoid' (29a) (
29b) respectively, and when the traction resistance of the working machine (2) increases beyond a set value, the solenoid valve 12
9), the lift arm (14) is driven upward, and the working machine (2) is appropriately lifted. Solenoid (29a) (2) of the solenoid valve c29)
9b) rise and fall switch electrically connected to +40
11411 i-po receiver control lever 115
1, turn on any of the switches (4) (411) using the lever +151, and turn the hand [lE
l] By operation, the lift arm f141 f is moved up and down as appropriate, and the control surface w! Buzzer +421 is connected to I■ v1 When the traction resistance of the working machine 121 increases and lift arm (14) upward output is generated in the circuit ■,
The increased output of the circuit (2) causes the buzzer to sound to notify of traction overload.

本発明は上記の如く構成してpね1第1図のようにトラ
クタillの後方にプラウ耕耘作業機121ヲ連結し、
前記作業機(2)を牽引して田畑を耕起する場合、深耕
或いは耕土か硬めと八にi′++が作業機(21の牽引
抵抗か増大し、その牽引抵抗がロアーリンク+181.
191に付加され、そして前記牽引抵抗によって口ァー
リンクt181.191か歪むと、これ2hラフトセン
サ(26)である歪ゲージ□□□によって検出し、in
ga歪ゲーコゲ−コンに接続した差動アンプaq出力が
設定以上に大きくなると、制御回路C(81を介してソ
レノイドバルブ(29)を防換え、庇圧シ11ンダ(2
71klliIi<動してリフトアーム(14)を上昇
作動し、前記歪ゲーコン(3A1の出力か設定以下にな
る迄i1T+2作業機+21を持上げて浅耕作業を行い
、前記作業機(2)を設定以下の牽引抵抗で移1させる
もので、前記耕耘作業全開始すると攻などに2いて、ト
ラクタfl) ’に停止させ、前記作業機12)ヲ耕上
上面に隆下させ念とA、IIIもロアーリンク+18i
 、+91に付加さnる牽引抵抗力か零の状慇でFラフ
ト表示器田が零になるように零点調節器1(支)を操作
し、歪ゲージ(腸のバランス調節ケ行なうもの。
The present invention is constructed as described above, and as shown in FIG.
When plowing a field by towing the working machine (2), if the soil is deep or hard, i'++ will increase the traction resistance of the working machine (21), and the traction resistance will be increased by the lower link +181.
191, and when the mouth link t181.191 is distorted due to the traction resistance, this is detected by the strain gauge □□□, which is a 2h raft sensor (26), and the in
When the aq output of the differential amplifier connected to the ga distortion game controller becomes larger than the setting, the solenoid valve (29) is replaced via the control circuit C (81) and the eaves pressure cylinder (2
71klliIi < move to raise the lift arm (14), lift the i1T+2 working machine + 21 until the output of the strain gauge controller (3A1) becomes below the setting, perform shallow plowing work, and lower the working machine (2) below the setting. When the plowing work is fully started, the tractor is stopped by the tractor fl)', and the work equipment 12) is raised to the upper surface of the plowing surface, and A and III are also lowered. link+18i
, operate the zero point adjuster 1 (support) so that the F raft display field becomes zero when the traction resistance force added to +91 is zero, and use the strain gauge (for adjusting the balance of the intestines).

である。It is.

以上実施1例から明らかなように本発明は、ロアII’
、II・ 一すンクJ811191に付加される牽す:1・抵抗力
を計測するVラフトセンサー26)の計測信号を表示す
ふためのFラフト表示器■と、前記じラフト表示器13
61の基準値を是正する零点調節器■とを備え、前記ロ
アーリンク+181.191 f介して連結する農作業
機(2)ヲ一定姿勢に保持した状崗でドラフト表示器(
至)及び零点調節器(至)を用いてドラフトセンサ(2
61のバランス調節を行なうもので、前記ドラフトセン
サ尚)の牽引制御絶対量全ドラフト表示5136+を用
いて容易に認識でき、前記農作業機12)の昇降操作並
びに耕耘作業時にpけるプラウ調節などを簡便に行なう
ことができ、農用トラクタillの沈下及びスリップな
どを防いで適正に走行路−できると共に、前2gラフト
表示器(支))ヲ兼用することによってドラフトセンサ
ー26)のバランス調節を零点調節器−を用いて極めて
簡単に行なうことができ、農作業開始時或いはその途中
においてrラフ社センサ(ロ))の特性変化などに応じ
てFラフトセンサ+261によって検ムする牽引抵抗力
の基準値を簡潔な操作で過正に得ることかで酉る等の顕
著な効果を奏するものである。
As is clear from the first embodiment, the present invention is applicable to the lower II'
, II. Added to Issunk J811191: 1. F raft indicator ■ for displaying the measurement signal of the V raft sensor 26) that measures the resistance force, and the same raft indicator 13 as mentioned above.
The draft indicator (2) is equipped with a zero point adjuster (2) for correcting the standard value of 61, and the draft indicator (
Draft sensor (2) using the zero point adjuster (2) and zero point adjuster (2)
It can be easily recognized using the traction control absolute amount total draft display 5136+ of the draft sensor 12), making it easy to raise and lower the agricultural implement 12) and adjust the plow during plowing work. It is possible to prevent the agricultural tractor from sinking and slipping, and to maintain a proper running path.The zero point adjuster also doubles as the front 2g raft indicator (support) to adjust the balance of the draft sensor 26). - This can be done extremely easily using the F Raft Sensor + 261, and the reference value of the traction resistance force measured by the F Raft Sensor +261 can be easily determined at the start of farming work or during the course of the work, depending on changes in the characteristics of the R Raft Sensor (B)). If you get too much of it through manipulation, it will bring about remarkable effects such as getting drunk.

、:・11.1, :・11.1

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す農用トラクタの側面図
、第2図は要部の平面図、第3図は同油圧回路図、第4
図は同ブロックダイアダラムである。 12)・・・プラウ耕耘作業Mk(農作業機)+18i
、+9)・・・ロアーリンク 126)・・・ドラフトセンサ 媚)・・・ドラフト表示器 ■・・・零点m部器 出願人  ヤンマー農機株式会社 代理人 藤  原  忠  治
Fig. 1 is a side view of an agricultural tractor showing one embodiment of the present invention, Fig. 2 is a plan view of the main parts, Fig. 3 is a hydraulic circuit diagram of the same, and Fig. 4
The figure shows the same block diagram. 12)...Plow tillage work Mk (agricultural machine) +18i
, +9)...Lower link 126)...Draft sensor)...Draft indicator■...Zero point m part Applicant: Yanmar Agricultural Machinery Co., Ltd. Agent Tadashi Fujiwara

Claims (1)

【特許請求の範囲】[Claims] ロアーリンクに付加される牽引抵抗力を計測するドラフ
トセンサの計測信号を表示するためのドラフト表示器と
、前記ドラフト表示器の基準値を是正する零点調節器と
を備え、前記ロアーリンクを介して連結する農作業機を
一定姿勢に保持したIr咀T l’クラフト示器及び零
J:J調節器を用いてドラフトセンサのバランス調節を
行うように構成したことを特徴とする農用トラクタの牽
引制御装置。
A draft indicator for displaying a measurement signal of a draft sensor that measures the traction resistance force applied to the lower link, and a zero point adjuster for correcting a reference value of the draft indicator, A traction control device for an agricultural tractor, characterized in that the device is configured to adjust the balance of a draft sensor using a craft indicator and a zero J:J adjuster that hold a connected agricultural working machine in a constant position. .
JP11102981A 1981-07-15 1981-07-15 Draft control apparatus of agricultural tractor Pending JPS5813301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11102981A JPS5813301A (en) 1981-07-15 1981-07-15 Draft control apparatus of agricultural tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11102981A JPS5813301A (en) 1981-07-15 1981-07-15 Draft control apparatus of agricultural tractor

Publications (1)

Publication Number Publication Date
JPS5813301A true JPS5813301A (en) 1983-01-25

Family

ID=14550586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11102981A Pending JPS5813301A (en) 1981-07-15 1981-07-15 Draft control apparatus of agricultural tractor

Country Status (1)

Country Link
JP (1) JPS5813301A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168307A (en) * 1984-02-10 1985-08-31 井関農機株式会社 Reference point controller of plowing depth detector in plowing detpth automatic control apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675005A (en) * 1979-11-26 1981-06-20 Kubota Ltd Soil treating machine with automatic lifting control mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675005A (en) * 1979-11-26 1981-06-20 Kubota Ltd Soil treating machine with automatic lifting control mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168307A (en) * 1984-02-10 1985-08-31 井関農機株式会社 Reference point controller of plowing depth detector in plowing detpth automatic control apparatus

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