A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REVOLUTION CONTROL DEVICE, AND REVOLUTION-TYPE WORK MACHINE COMPRISING THE SAME
To provide a revolution control device capable of suppressing a decrease in deceleration torque during deceleration of a revolution motor, and to provide a revolution-type work machine comprising the same.SOLUTION: A revolution control device 101 comprises: a hydraulic pump 21 discharging hydraulic oil; a revolution motor 11 operating by being supplied with the hydraulic oil; a revolution control valve 31 interposed between the hydraulic pump 21 and the revolution motor 11; a revolution operation device 41 receiving a revolution operation by an operator; and a controller 70 performing deceleration control adjusting deceleration torque to decelerate the revolution motor 11. The revolution control valve 31 has a valve body 31B capable of operating in a range including a first operating range that opens a meter-out passage and closes a meter-in passage and a second operating range that opens the meter-out passage and the meter-in passage. The controller 70 performs deceleration control while maintaining a state in which the valve body 31B is disposed within the first operating range.SELECTED DRAWING: Figure 3
【課題】旋回モータの減速時における減速トルクの低下を抑制できる旋回制御装置及びこれを備えた旋回式作業機械を提供する。【解決手段】旋回制御装置１０１は、作動油を吐出する油圧ポンプ２１と、作動油が供給されることにより作動する旋回モータ１１と、油圧ポンプ２１と旋回モータ１１との間に介在する旋回制御弁３１と、オペレータによる旋回操作を受ける旋回操作器４１と、旋回モータ１１を減速させるための減速トルクを調節する減速制御を行うコントローラ７０と、を備える。旋回制御弁３１は、メータアウト通路を開いてメータイン通路を閉じる第１動作範囲とメータアウト通路及びメータイン通路を開く第２動作範囲とを含む範囲において動作することが可能な弁体３１Ｂを有する。コントローラ７０は、弁体３１Ｂが第１動作範囲内に配置された状態を維持しながら減速制御を行う。【選択図】図３
REVOLUTION CONTROL DEVICE, AND REVOLUTION-TYPE WORK MACHINE COMPRISING THE SAME
To provide a revolution control device capable of suppressing a decrease in deceleration torque during deceleration of a revolution motor, and to provide a revolution-type work machine comprising the same.SOLUTION: A revolution control device 101 comprises: a hydraulic pump 21 discharging hydraulic oil; a revolution motor 11 operating by being supplied with the hydraulic oil; a revolution control valve 31 interposed between the hydraulic pump 21 and the revolution motor 11; a revolution operation device 41 receiving a revolution operation by an operator; and a controller 70 performing deceleration control adjusting deceleration torque to decelerate the revolution motor 11. The revolution control valve 31 has a valve body 31B capable of operating in a range including a first operating range that opens a meter-out passage and closes a meter-in passage and a second operating range that opens the meter-out passage and the meter-in passage. The controller 70 performs deceleration control while maintaining a state in which the valve body 31B is disposed within the first operating range.SELECTED DRAWING: Figure 3
【課題】旋回モータの減速時における減速トルクの低下を抑制できる旋回制御装置及びこれを備えた旋回式作業機械を提供する。【解決手段】旋回制御装置１０１は、作動油を吐出する油圧ポンプ２１と、作動油が供給されることにより作動する旋回モータ１１と、油圧ポンプ２１と旋回モータ１１との間に介在する旋回制御弁３１と、オペレータによる旋回操作を受ける旋回操作器４１と、旋回モータ１１を減速させるための減速トルクを調節する減速制御を行うコントローラ７０と、を備える。旋回制御弁３１は、メータアウト通路を開いてメータイン通路を閉じる第１動作範囲とメータアウト通路及びメータイン通路を開く第２動作範囲とを含む範囲において動作することが可能な弁体３１Ｂを有する。コントローラ７０は、弁体３１Ｂが第１動作範囲内に配置された状態を維持しながら減速制御を行う。【選択図】図３
REVOLUTION CONTROL DEVICE, AND REVOLUTION-TYPE WORK MACHINE COMPRISING THE SAME
旋回制御装置及びこれを備えた旋回式作業機械
KAWAMOTO MASAHIRO (author) / ONO YOHEI (author) / FUJITA YUICHIRO (author) / KOIWAI KAZUSHIGE (author) / YUZUMOTO NATSUKI (author)
2024-02-15
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING