HYDRAULIC DRIVING DEVICE

PROBLEM TO BE SOLVED: To perform an accurate controlling for an operation of an arm member while restricting occurrence of pressure loss and consumption of hydraulic oil.SOLUTION: A hydraulic driving device for controlling an operation of an arm member constituting a working arm comprises a motor; a...

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Bibliographische Detailangaben
1. Verfasser:	HAGA MASAKAZU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To perform an accurate controlling for an operation of an arm member while restricting occurrence of pressure loss and consumption of hydraulic oil.SOLUTION: A hydraulic driving device for controlling an operation of an arm member constituting a working arm comprises a motor; a hydraulic pump driven by the motor; at least two hydraulic cylinders connected to the hydraulic pump in a closed circuit, and driven by hydraulic oil discharged from the hydraulic pump so as to drive one arm member under operation in a different extending or retracting direction to each other in respect to an operating direction of one arm member; and a flow control device for controlling a direction and a flow rate of hydraulic oil supplied from the hydraulic pump to each of at least two hydraulic cylinders. 【課題】圧力損失の発生や圧油の消費を抑制しつつ、腕部材の動作を精度よく制御する。【解決手段】油圧駆動装置は、作業腕を構成する腕部材の動作を制御する油圧駆動装置であって、原動機と、原動機により駆動される油圧ポンプと、油圧ポンプに閉回路接続され、油圧ポンプから吐出される圧油により駆動され、一の腕部材の動作方向に対して、互いに異なる伸縮方向に動作することで一の腕部材を駆動する少なくとも２つの油圧シリンダと、油圧ポンプから少なくとも２つの油圧シリンダのそれぞれに供給される圧油の方向および流量を制御する流れ制御装置とを備える。【選択図】図２