JPS61184759U

JPS61184759U -

Info

Publication number: JPS61184759U
Application number: JP6895885U
Authority: JP
Priority date: 1985-05-10
Filing date: 1985-05-10
Publication date: 1986-11-18

Description

[Brief explanation of the drawing]

第１図は本考案に係るパワーシヨベルの制御装
置の一実施例を示すブロツク図、第２図は第１図
に示した実施例におけるバケツトの高さの演算を
説明するための図、第３図は第１図に示した実施
例におけるバケツトの高さ設定器を示す平面図、
第４図は第１図に示した実施例における関数発生
器の作用を説明するためのグラフ図、第５図は一
般的なパワーシヨベルの部分図である。１…ブーム操作用レバー、２，１２…関数発生
器、３，１３…リレースイツチ、５，１５…アン
プ、６，１６…流量調整弁、７…ブームシリンダ
、８，１８…ポテンシヨメータ、１０…アーム操
作用レバー、１１…加算器、１７…アームシリン
ダ、２１…操作量検出器、２２…スイツチ、２３
…リレースイツチ、２４…演算器、２５…高さ設
定器、２６…比較器、１０１…バケツト、１０２
…アーム、１０３…ブーム。 FIG. 1 is a block diagram showing an embodiment of the power shovel control device according to the present invention, FIG. 2 is a diagram for explaining the calculation of the bucket height in the embodiment shown in FIG. 1, and FIG. is a plan view showing the bucket height setting device in the embodiment shown in FIG. 1;
FIG. 4 is a graph for explaining the operation of the function generator in the embodiment shown in FIG. 1, and FIG. 5 is a partial diagram of a general power shovel. 1... Boom operation lever, 2, 12... Function generator, 3, 13... Relay switch, 5, 15... Amplifier, 6, 16... Flow rate adjustment valve, 7... Boom cylinder, 8, 18... Potentiometer, 10 ... Arm operating lever, 11... Adder, 17... Arm cylinder, 21... Operation amount detector, 22... Switch, 23
...Relay switch, 24...Calculator, 25...Height setter, 26...Comparator, 101...Bucket, 102
...Arm, 103...Boom.

Claims

[Scope of Claim for Utility Model Registration] (1) A boom control system that operates a boom cylinder at a speed according to the operation signal based on a boom operation signal indicating the amount of operation of the boom operation lever, and In a power shovel equipped with an arm control system that operates an arm cylinder at a speed corresponding to an arm operation signal indicating the amount of operation, the boom operation lever is operated by more than a predetermined amount in a direction to raise the boom. means for detecting that the boom operation lever is operated by the predetermined amount or more, and means for providing the arm control system with an arm operation command signal that causes the arm to rotate in the same direction as the boom rotation direction at that time. A power shovel control device equipped with (2) The power shovel control device according to claim 1, wherein the arm operation command signal changes depending on the amount of operation of the boom operation lever. (3) The power shovel control device according to claim 1, wherein the arm operation command signal is a signal having a predetermined value that causes the arm to rotate at high speed. (4) means for detecting the height of the bucket of the power shovel; and means for setting the height of the bucket;
The control device for a power shovel according to claim 1, further comprising means for stopping the boom cylinder and the arm cylinder when the height of the bucket reaches a preset height. (5) The means for stopping the boom cylinder and the arm cylinder is configured to provide a signal to the boom control system and the arm control system so that the current speed of the boom cylinder and the arm cylinder gradually decreases to zero. The power shovel control device described in 4).