JPH03108311U

JPH03108311U -

Info

Publication number: JPH03108311U
Application number: JP1597790U
Authority: JP
Priority date: 1990-02-20
Filing date: 1990-02-20
Publication date: 1991-11-07

Description

[Brief explanation of drawings]

第１図は電子制御式作業機昇降装置付きのトラ
クタに、ロータリ耕耘装置を付設した状態の側面
図、第２図はコントローラＣと、その上面に付設
したリフト昇降スイツチ１と、耕深設定ダイヤル
２と、ポジシヨンセレクトスイツチ３の平面図、
第３図はリフトアーム７の回動基部に付設したリ
フト角センサ４の後面図、第４図はポジシヨンレ
バー８に付設したポジシヨンレバーセンサ５の側
面図、第５図は同じく後面図、第６図はロータリ
耕耘装置のリアカバー９の基部に設置したリアカ
バーセンサ６の側面図、第７図は同じく後面図、
第８図はコントローラＣを中心とした電気回路図
、第９図は制御ブロツク線図、第１０図は油圧制
御回路図、第１１図は本考案の電子制御式作業機
昇降装置の制御フローチヤート図、第１２図は変
位量と変化率ｋにより演算する修正値を示す図面
、第１３図は耕深変化曲線のそれぞれの場合にお
ける修正係数を示す図面である。ｘ……変位設定値、ａ……変位量による修正値
、ｂ……変化率による修正値、ｋ……変化率、１
……リフト昇降スイツチ、２……耕深設定ダイヤ
ル、３……ポジシヨンセレクトスイツチ、４……
リフト角センサ、５……ポジシヨンレバーセンサ
、６……リアカバーセンサ、７……リフトアーム
、８……ポジシヨンレバー、９……リアカバー。 Figure 1 is a side view of a rotary tiller attached to a tractor equipped with an electronically controlled work equipment lift, and Figure 2 is a controller C, lift lift switch 1 attached to its top, and tillage depth setting dial. 2 and a plan view of the position select switch 3,
3 is a rear view of the lift angle sensor 4 attached to the rotation base of the lift arm 7, FIG. 4 is a side view of the position lever sensor 5 attached to the position lever 8, and FIG. 5 is a rear view of the same. FIG. 6 is a side view of the rear cover sensor 6 installed at the base of the rear cover 9 of the rotary tillage device, and FIG. 7 is a rear view as well.
Fig. 8 is an electric circuit diagram centered on controller C, Fig. 9 is a control block diagram, Fig. 10 is a hydraulic control circuit diagram, and Fig. 11 is a control flowchart of the electronically controlled working machine lifting device of the present invention. FIG. 12 is a diagram showing correction values calculated based on the displacement amount and rate of change k, and FIG. 13 is a diagram showing correction coefficients in each case of the plowing depth change curve. x... Displacement setting value, a... Correction value based on displacement amount, b... Correction value based on rate of change, k... Rate of change, 1
...Lift elevation switch, 2...Plowing depth setting dial, 3...Position selection switch, 4...
Lift angle sensor, 5... Position lever sensor, 6... Rear cover sensor, 7... Lift arm, 8... Position lever, 9... Rear cover.

Claims

[Scope of utility model registration request]

In a configuration in which a work equipment attached to a tractor is raised and lowered by an electronically controlled work equipment lifting device and the plowing depth of the work equipment is controlled to the optimal position, the state of change in plowing depth is determined by the amount of displacement from the set value and the set value. An electronically controlled operation characterized in that the flow rate of the electromagnetic proportional valve is specified by a rate of change indicating whether the object is approaching or moving away from the object, and the flow rate of the electromagnetic proportional valve is corrected by a correction value specified by the amount of displacement and the rate of change. Machine lifting device.