JP6618253B2 - 施工具駆動用油圧装置 - Google Patents
施工具駆動用油圧装置 Download PDFInfo
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- JP6618253B2 JP6618253B2 JP2014255348A JP2014255348A JP6618253B2 JP 6618253 B2 JP6618253 B2 JP 6618253B2 JP 2014255348 A JP2014255348 A JP 2014255348A JP 2014255348 A JP2014255348 A JP 2014255348A JP 6618253 B2 JP6618253 B2 JP 6618253B2
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- solenoid
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Description
Claims (1)
- 施工具を駆動する油圧アクチュエータへの作動油の供給方向を正方向と逆方向と停止とに切り換えるソレノイド方向切換弁と、該ソレノイド方向切換弁を作動させる各ソレノイドへの通電を正方向と逆方向と停止とに切り換える切換スイッチと、ソレノイド方向切換弁が停止位置になったときに前記油圧アクチュエータからの作動油の流出を規制する絞りとを備えた施工具駆動用油圧装置において、前記切換スイッチと前記ソレノイド方向切換弁との間の電気回路に、前記切換スイッチを正方向又は逆方向に設定したときに、異なる方向の通電回路を遮断する接点をそれぞれ設けるとともに、前記切換スイッチの正方向又は逆方向の設定を解除したときに、前記接点をあらかじめ設定された時間だけ遮断状態に保持するオフディレータイマを設け、前記接点は通常時は通電状態を保持する常閉式であり、前記オフディレータイマの作動により接点が離れて前記通電回路を遮断し、前記ソレノイド方向切換弁を中立の停止位置に保持し、前記絞りは作動油の流出を規制することを特徴とする施工具駆動用油圧装置。
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JP2014255348A JP6618253B2 (ja) | 2014-12-17 | 2014-12-17 | 施工具駆動用油圧装置 |
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JP2014255348A JP6618253B2 (ja) | 2014-12-17 | 2014-12-17 | 施工具駆動用油圧装置 |
Publications (2)
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JP2016113849A JP2016113849A (ja) | 2016-06-23 |
JP6618253B2 true JP6618253B2 (ja) | 2019-12-11 |
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JP2014255348A Active JP6618253B2 (ja) | 2014-12-17 | 2014-12-17 | 施工具駆動用油圧装置 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109209334A (zh) * | 2018-11-30 | 2019-01-15 | 恒天九五重工有限公司 | 一种防止水平定向钻机启动时产生故障的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6122156A (ja) * | 1984-07-06 | 1986-01-30 | ダイキン工業株式会社 | 冷凍機の制御装置 |
JPH05149071A (ja) * | 1991-11-26 | 1993-06-15 | Sanwa Shutter Corp | 建築用電動シヤツターにおける安全装置 |
JP3252188B2 (ja) * | 1993-08-12 | 2002-01-28 | 株式会社加藤製作所 | ケリーバー駆動油圧モータの制御装置 |
JPH0889680A (ja) * | 1994-09-21 | 1996-04-09 | Ikeda Bussan Co Ltd | 本縫いミシン |
JP3535104B2 (ja) * | 2001-01-31 | 2004-06-07 | 日本車輌製造株式会社 | 施工具駆動用油圧装置 |
JP4688828B2 (ja) * | 2007-02-20 | 2011-05-25 | 住友建機株式会社 | 舗装機械 |
IT1403419B1 (it) * | 2010-12-23 | 2013-10-17 | Soilmec Spa | Metodo ed apparato per la perforazione del terreno. |
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