Packing is right to combined type beam -pumping unit polished rod
The utility model relates to a packing is right to combined type beam -pumping unit polished rod, this packing is right to combined type beam -pumping unit polished rod includes: nylon direction packing, conical wear -resisting packing, set upright or straight the hole, press cap, polished rod, incl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a packing is right to combined type beam -pumping unit polished rod, this packing is right to combined type beam -pumping unit polished rod includes: nylon direction packing, conical wear -resisting packing, set upright or straight the hole, press cap, polished rod, inclined plane, the pressure cap is installed to the upper end of nylon direction packing, and the medial surface of nylon direction packing is the inclined plane, and the internally mounted of nylon direction packing has conical wear -resisting packing, the center of conical wear -resisting packing is equipped with rights the hole, press the center of cap also to be equipped with the endocentric hole of rightting with the position that conical wear -resisting packing corresponds, the polished rod run through perpendicularly press cap and conical wear -resisting packing insert right downthehole, packing by two kinds of different materials is constituteed, the combined type polished rod is right the packing and can be r |
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