Pile pressing-in machine and automatic compensation control mechanism of walking oil cylinder of pile pressing-in machine

The utility model discloses a pile press and a walking oil cylinder automatic compensation control mechanism thereof, the walking oil cylinder automatic compensation control mechanism comprises a walking oil cylinder and a compensation oil cylinder, and further comprises a control valve communicated...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZENG SU, ZHOU SHENGGUI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a pile press and a walking oil cylinder automatic compensation control mechanism thereof, the walking oil cylinder automatic compensation control mechanism comprises a walking oil cylinder and a compensation oil cylinder, and further comprises a control valve communicated with a rod cavity and a rodless cavity of the walking oil cylinder, the rod cavity of the walking oil cylinder is communicated with a rod cavity of the compensation oil cylinder, and the rodless cavity of the compensation oil cylinder is communicated with a rodless cavity of the control valve. A rodless cavity of the walking oil cylinder is communicated with a rodless cavity of the compensation oil cylinder. According to the automatic compensation control mechanism for the walking oil cylinder, the piston rod of the compensation oil cylinder can be controlled to stretch out in a self-adaptive mode through the reversing valve, in this way, self-adaptive length compensation can be conducted on the original fixed str