Device for installing freezing pipe in inclined freezing hole
The invention relates to a device for installing a freezing pipe in an inclined freezing hole. The device is characterized by comprising an adapter connector, an upper center tube and a lower center tube. The upper center tube is provided with a pair of conical roller bearings, inner rings of the be...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to a device for installing a freezing pipe in an inclined freezing hole. The device is characterized by comprising an adapter connector, an upper center tube and a lower center tube. The upper center tube is provided with a pair of conical roller bearings, inner rings of the bearings are matched with the upper center tube, outer rings of the bearings are matched with an oil cylinder barrel, a piston is arranged on the upper center tube in a sleeving mode to serve as a piston rod at the same time, an oil cylinder end cover is provided with a sealing ring and a dustproof ring, and the upper center tube is in threaded connection with the lower center tube; the lower center tube is provided with a joining sleeve, a push-pull rod, a slip, a dovetail groove with the taper, a Y-shaped sealing ring and a guide block. The device is connected with a main shaft of an inclined shaft drilling machine, the freezing pipe can be tightly wedged through a hydraulic system, the inner diameter of the freezing pipe can be sealed through the Y-shaped sealing ring, and drilling fluid can be circulated while the freezing pipe is installed; meanwhile, a freezing tubular column is rotated by a power head through the upper center tube, the lower center tube and the slip on the lower center tube, and freezing tube installing in the inclined freezing hole is achieved in technology. |
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