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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Bibliographische Detailangaben
Hauptverfasser: AN LIANBAO, FAN SHIYAO, PENG YONGNING, LIANG XINWEN, PEI ZIMIN, HAO FANGFANG, YAN HUANJING, LYU TUWEI, LIANG YINGJING, LYU NING, WEN SHIMING, GUO DEXIU, WANG QIHUI, WU DONGDONG
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