Pumping unit wellhead spiral wire rope pumping rod sealing device
The invention specifically discloses a pumping unitwellhead spiral wire rope pumping rod sealing device. The problems that the existing pumping unit wellhead sealingis poor in sealing effect andprone to damaging, and maintenance is time-consuming and laborious are solved. Arotating sleeve sleeves th...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention specifically discloses a pumping unitwellhead spiral wire rope pumping rod sealing device. The problems that the existing pumping unit wellhead sealingis poor in sealing effect andprone to damaging, and maintenance is time-consuming and laborious are solved. Arotating sleeve sleeves the middle part of a spiral steel wire rope pumping rod, a sealing gasket, a spiral sealing packing block, and sleeve-shaped oil scraping ring seats are arranged between the rotating sleeve and the spiral steel wire rope pumping rod, each of the sleeve-shaped oil scraping ring seatsareinternally provided with an oil scraping ring, sealing glands are arrangedat the axial outer ends of the two sleeve-shaped oil scraping ring seats, and the sealing glandsare screwed with bolts; an oil storage box is arranged above a sleeve-shaped flange, a sleeve-shaped connecting seat is arranged between the sleeve-shaped flange and the oil storage box, and a thrust bearing, a bearing, and an oil seal are arranged in the sleeve-shaped |
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