A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
WORK MACHINE
PROBLEM TO BE SOLVED: To provide a work machine equipped with an electric operation device which allows an operator to sense the state of the work machine by means of an operation feeling of an operation member.SOLUTION: A work machine includes: a driving device 51 for driving a working unit 50; and an electric operation device 24 for operating the working unit 50. The operation device 24 includes: a reaction-force applying device 40 that applies a reaction force to a lever 38 operated from a neutral position to return the lever 38 to the neutral position; a pressure sensor 23 that detects a driving hydraulic pressure of a driving motor 33 as a state-indicator value of the work machine relating to the movement of the working unit 50; a control-value deriving unit 56 that derives a motor-current value for controlling the reaction-force applying device 40 according to the driving hydraulic pressure detected by the pressure sensor 23; and a reaction force controller 57 that controls a reaction-force motor 43 of the reaction-force applying device 40 such that the reaction-force applying device 40 applies a reaction force to the lever 38 according to the motor-current value derived by the control-value deriving unit 56.SELECTED DRAWING: Figure 2
【課題】電気式の操作装置を搭載した作業機械において、操作者が操作部材の操作感覚を通じて作業機械自体の状態を知覚できるようにする。【解決手段】作業機械は、作動部５０を駆動する駆動装置５１と、作動部５０を操作するための電気式の操作装置２４と、を備え、操作装置２４は、中立位置から操作されたレバー３８に対してそのレバー３８を中立位置側へ戻す反力を付与する反力付与装置４０と、作動部５０の動作に関わる作業機械の状態指標値として駆動モータ３３の駆動用油圧を検出する圧力センサ２３と、反力付与装置４０を制御するためのモータ電流値を、圧力センサ２３により検出された駆動用油圧に応じた値で導出する制御値導出部５６と、反力付与装置４０が制御値導出部５６により導出されたモータ電流値に応じた反力をレバー３８に対して付与するように反力付与装置４０の反力用モータ４３を制御する反力制御部５７と、を有する。【選択図】図２
WORK MACHINE
PROBLEM TO BE SOLVED: To provide a work machine equipped with an electric operation device which allows an operator to sense the state of the work machine by means of an operation feeling of an operation member.SOLUTION: A work machine includes: a driving device 51 for driving a working unit 50; and an electric operation device 24 for operating the working unit 50. The operation device 24 includes: a reaction-force applying device 40 that applies a reaction force to a lever 38 operated from a neutral position to return the lever 38 to the neutral position; a pressure sensor 23 that detects a driving hydraulic pressure of a driving motor 33 as a state-indicator value of the work machine relating to the movement of the working unit 50; a control-value deriving unit 56 that derives a motor-current value for controlling the reaction-force applying device 40 according to the driving hydraulic pressure detected by the pressure sensor 23; and a reaction force controller 57 that controls a reaction-force motor 43 of the reaction-force applying device 40 such that the reaction-force applying device 40 applies a reaction force to the lever 38 according to the motor-current value derived by the control-value deriving unit 56.SELECTED DRAWING: Figure 2
【課題】電気式の操作装置を搭載した作業機械において、操作者が操作部材の操作感覚を通じて作業機械自体の状態を知覚できるようにする。【解決手段】作業機械は、作動部５０を駆動する駆動装置５１と、作動部５０を操作するための電気式の操作装置２４と、を備え、操作装置２４は、中立位置から操作されたレバー３８に対してそのレバー３８を中立位置側へ戻す反力を付与する反力付与装置４０と、作動部５０の動作に関わる作業機械の状態指標値として駆動モータ３３の駆動用油圧を検出する圧力センサ２３と、反力付与装置４０を制御するためのモータ電流値を、圧力センサ２３により検出された駆動用油圧に応じた値で導出する制御値導出部５６と、反力付与装置４０が制御値導出部５６により導出されたモータ電流値に応じた反力をレバー３８に対して付与するように反力付与装置４０の反力用モータ４３を制御する反力制御部５７と、を有する。【選択図】図２
WORK MACHINE
作業機械
HIEKATA TAKASHI (author) / INOUE KOJI (author) / ASANO TATSURO (author)
2016-09-05
Patent
Electronic Resource
Japanese
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