A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC UNIT
PROBLEM TO BE SOLVED: To provide a hydraulic unit that can be used for output reinforcement of a hydraulic work machine and emergency escape.SOLUTION: A hydraulic unit 11 includes; an engine 12 which has larger output than an engine of a hydraulic work machine; a hydraulic pump 13 which has higher pressure than a hydraulic pump of the hydraulic work machine and can discharge hydraulic oil at a large flow rate; a first control valve 14 and a second control valve 15 which change the path of the hydraulic oil whose pressure is raised by the hydraulic pump; a first cutoff valve 17 including an oil tank 20 where the hydraulic oil is reserved and provided for piping extending from the hydraulic pump to a first control valve; a second cutoff valve 19 provided for piping extending to a second control valve; and a third cutoff valve 22 provided for piping extending from the oil tank to the hydraulic pump. A first external connection part 25 on the side of the first control valve is provided with first A-port hydraulic piping 27, first B-port hydraulic piping 28, and drain piping 29, and a second external connection part 26 on the side of the second control valve is provided with second output hydraulic piping 31 and pump suction piping 35.
【課題】 油圧式作業機の出力増強用及び緊急脱出用として用いることができる油圧ユニットを提供する。【解決手段】 油圧ユニット１１は、油圧式作業機のエンジンより大きな出力を有するエンジン１２と、油圧式作業機の油圧ポンプより高圧で、大流量の作動油を吐出可能な油圧ポンプ１３と、油圧ポンプで昇圧した作動油の経路を切り替える第１制御弁１４及び第２制御弁１５と、作動油を貯留するオイルタンク２０とを備えるとともに、油圧ポンプから第１制御弁に至る配管に設けられた第１遮断弁１７、第２制御弁に至る配管に設けられた第２遮断弁１９、オイルタンクから油圧ポンプに至る配管に設けられた第３遮断弁２２を備え、第１制御弁側の第１外部接続部２５には、第１Ａポート油圧配管２７、第１Ｂポート油圧配管２８、ドレン配管２９を設け、第２制御弁側の第２外部接続部２６には、第２出力油圧配管３１とポンプ吸入配管３５とを設ける。【選択図】 図１
HYDRAULIC UNIT
PROBLEM TO BE SOLVED: To provide a hydraulic unit that can be used for output reinforcement of a hydraulic work machine and emergency escape.SOLUTION: A hydraulic unit 11 includes; an engine 12 which has larger output than an engine of a hydraulic work machine; a hydraulic pump 13 which has higher pressure than a hydraulic pump of the hydraulic work machine and can discharge hydraulic oil at a large flow rate; a first control valve 14 and a second control valve 15 which change the path of the hydraulic oil whose pressure is raised by the hydraulic pump; a first cutoff valve 17 including an oil tank 20 where the hydraulic oil is reserved and provided for piping extending from the hydraulic pump to a first control valve; a second cutoff valve 19 provided for piping extending to a second control valve; and a third cutoff valve 22 provided for piping extending from the oil tank to the hydraulic pump. A first external connection part 25 on the side of the first control valve is provided with first A-port hydraulic piping 27, first B-port hydraulic piping 28, and drain piping 29, and a second external connection part 26 on the side of the second control valve is provided with second output hydraulic piping 31 and pump suction piping 35.
【課題】 油圧式作業機の出力増強用及び緊急脱出用として用いることができる油圧ユニットを提供する。【解決手段】 油圧ユニット１１は、油圧式作業機のエンジンより大きな出力を有するエンジン１２と、油圧式作業機の油圧ポンプより高圧で、大流量の作動油を吐出可能な油圧ポンプ１３と、油圧ポンプで昇圧した作動油の経路を切り替える第１制御弁１４及び第２制御弁１５と、作動油を貯留するオイルタンク２０とを備えるとともに、油圧ポンプから第１制御弁に至る配管に設けられた第１遮断弁１７、第２制御弁に至る配管に設けられた第２遮断弁１９、オイルタンクから油圧ポンプに至る配管に設けられた第３遮断弁２２を備え、第１制御弁側の第１外部接続部２５には、第１Ａポート油圧配管２７、第１Ｂポート油圧配管２８、ドレン配管２９を設け、第２制御弁側の第２外部接続部２６には、第２出力油圧配管３１とポンプ吸入配管３５とを設ける。【選択図】 図１
HYDRAULIC UNIT
油圧ユニット
TOMITA YASUKIMI (author) / NASU HIDEAKI (author)
2015-08-13
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING