A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTANT PRESSURE CONTROL HYDRAULIC DRIVING DEVICE
PROBLEM TO BE SOLVED: To obtain a desired thrust or braking force of a hydraulic actuator while suppressing the pressure acting on a pressure chamber on the drive side or the control side of the hydraulic actuator to the minimum pressure.SOLUTION: A constant pressure control hydraulic driving device of the present invention includes transformers 7 and 8 for controlling a pressure and a flow rate of pressurized liquid supplied to cylinders 10 and 11. The transformer 7 and 8 are constituted by mechanically connecting input and output axes together of three variable displacement hydraulic pumps/motors 7a, 7b, 7c and 8a, 8b, 8c, respectively. One of the variable displacement hydraulic pumps/motors 7b and 8b is connected to a constant pressure source 1 via a high-pressure pipe line 13 and a low-pressure pipe line 14; The other of the variable displacement hydraulic pumps/motors 7b and 8b is connected to the cylinder 10 and 11 via a first conduit line 15 and 16 respectively while being connected to the constant pressure source 1 via the low-pressure pipe line 14; and the other of the variable displacement hydraulic pumps/motors 7c and 8c is connected to the cylinder 10 and 11 via a second conduit line 18 and 19 respectively while being connected to the constant pressure source 1 via the low-pressure pipe line 14.
【課題】液圧アクチュエータの駆動側または制動側の圧力室に作用する圧力を必要最低限に抑制しながら所望の液圧アクチュエータ推力または制動力を得られるようにした。【解決手段】本発明は、シリンダ１０，１１に供給される圧液の圧力と流量を制御するトランスフォーマ７，８が、それぞれ３つの可変容量型液圧ポンプ・モータ７ａ，７ｂ，７ｃ，８ａ，８ｂ，８ｃの入出力軸を機械的に連結して構成されている。１つの可変容量型液圧ポンプ・モータ７ｂ，８ｂは、定圧力源１に高圧管路１５及び低圧管路１４を介して接続され、別の１つのポンプ・モータ７ａ，８ａは、シリンダ１０，１１に第１管路１５，１６を介して接続され、かつ定圧力源１に低圧管路１４を介して接続され、さらに別の１つのポンプ・モータ７ｃ，８ｃは、シリンダ１０，１１に第２管路１８，１９を介して接続され、かつ定圧力源１に低圧管路１４を介して接続されるようにしてある。【選択図】図１
CONSTANT PRESSURE CONTROL HYDRAULIC DRIVING DEVICE
PROBLEM TO BE SOLVED: To obtain a desired thrust or braking force of a hydraulic actuator while suppressing the pressure acting on a pressure chamber on the drive side or the control side of the hydraulic actuator to the minimum pressure.SOLUTION: A constant pressure control hydraulic driving device of the present invention includes transformers 7 and 8 for controlling a pressure and a flow rate of pressurized liquid supplied to cylinders 10 and 11. The transformer 7 and 8 are constituted by mechanically connecting input and output axes together of three variable displacement hydraulic pumps/motors 7a, 7b, 7c and 8a, 8b, 8c, respectively. One of the variable displacement hydraulic pumps/motors 7b and 8b is connected to a constant pressure source 1 via a high-pressure pipe line 13 and a low-pressure pipe line 14; The other of the variable displacement hydraulic pumps/motors 7b and 8b is connected to the cylinder 10 and 11 via a first conduit line 15 and 16 respectively while being connected to the constant pressure source 1 via the low-pressure pipe line 14; and the other of the variable displacement hydraulic pumps/motors 7c and 8c is connected to the cylinder 10 and 11 via a second conduit line 18 and 19 respectively while being connected to the constant pressure source 1 via the low-pressure pipe line 14.
【課題】液圧アクチュエータの駆動側または制動側の圧力室に作用する圧力を必要最低限に抑制しながら所望の液圧アクチュエータ推力または制動力を得られるようにした。【解決手段】本発明は、シリンダ１０，１１に供給される圧液の圧力と流量を制御するトランスフォーマ７，８が、それぞれ３つの可変容量型液圧ポンプ・モータ７ａ，７ｂ，７ｃ，８ａ，８ｂ，８ｃの入出力軸を機械的に連結して構成されている。１つの可変容量型液圧ポンプ・モータ７ｂ，８ｂは、定圧力源１に高圧管路１５及び低圧管路１４を介して接続され、別の１つのポンプ・モータ７ａ，８ａは、シリンダ１０，１１に第１管路１５，１６を介して接続され、かつ定圧力源１に低圧管路１４を介して接続され、さらに別の１つのポンプ・モータ７ｃ，８ｃは、シリンダ１０，１１に第２管路１８，１９を介して接続され、かつ定圧力源１に低圧管路１４を介して接続されるようにしてある。【選択図】図１
CONSTANT PRESSURE CONTROL HYDRAULIC DRIVING DEVICE
定圧力制御液圧駆動装置
YAMASHITA RYOHEI (author)
2015-11-02
Patent
Electronic Resource
Japanese
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