Hydraulic pressure driven directional deflecting device

The directional deflecting device driven by water pressure comprises an inner pipe assembly and an outer pipe assembly. The inner pipe assembly comprises an inner through pipe, a needle roller bearing, an inner short connecting pipe and a plane bearing; the outer pipe assembly comprises an outer thr...

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Bibliographische Detailangaben
Hauptverfasser: TAN LICHENG, TAN XIONGWEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The directional deflecting device driven by water pressure comprises an inner pipe assembly and an outer pipe assembly. The inner pipe assembly comprises an inner through pipe, a needle roller bearing, an inner short connecting pipe and a plane bearing; the outer pipe assembly comprises an outer through pipe, an outer short connecting pipe, a directional slip, a deflecting slip, an elastic elementA and an elastic element B; when the outer through pipe provided with the directional slip and the deflecting slip is arranged on the inner through pipe in a sleeving mode, an annular space A and anannular space B are formed between the outer through pipe and the inner through pipe, one side of the annular space B is communicated with the flow guide hole in the inner through pipe, and the otherside of the annular space B is connected with the flow drainage channel in the outer through pipe. The directional core-taking drilling tool is applied to directional core-taking drilling, during working, high-pressure water fl