Pressurizing oil cylinder control hydraulic system and drilling machine

The utility model discloses a pressurized oil cylinder control hydraulic system, which belongs to the technical field of hydraulic control and comprises a pressurized oil cylinder, a bidirectional balance valve, an overflow valve, a first hydraulic control one-way valve and a second hydraulic contro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZENG SU, ZHOU SHENGGUI, XU CAIXING
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a pressurized oil cylinder control hydraulic system, which belongs to the technical field of hydraulic control and comprises a pressurized oil cylinder, a bidirectional balance valve, an overflow valve, a first hydraulic control one-way valve and a second hydraulic control one-way valve. An oil inlet of the first hydraulic control one-way valve is connected with an oil inlet of the second hydraulic control one-way valve through an overflow valve, an oil outlet of the first hydraulic control one-way valve is connected with a rod cavity, and an oil outlet of the second hydraulic control one-way valve is connected with a rodless cavity. And a hydraulic control port of the first hydraulic control one-way valve and a hydraulic control port of the second hydraulic control one-way valve are respectively connected with the floating pulling signal oil path. The pressurization oil cylinder control hydraulic system can be used for various working conditions needing floating pressurization, th