Rotary drilling rig mast and assembling method of rotary drilling rig mast
The invention provides a rotary drilling rig mast, which comprises a plurality of mast sections in sequential connection in the length direction, wherein each mast section comprises a hollow mast body, a first connecting assembly and a second connecting assembly; the first connecting assembly and th...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a rotary drilling rig mast, which comprises a plurality of mast sections in sequential connection in the length direction, wherein each mast section comprises a hollow mast body, a first connecting assembly and a second connecting assembly; the first connecting assembly and the second connecting assembly are connected at the two opposite ends of the hollow mast body; the first connecting assembly of each mast section is connected with the second connecting assembly of the adjacent mast section; at least one assembly of the first connecting assembly and the second connecting assembly comprises a connecting plate, a connecting surrounding plate and a reinforcing rib plate; the connecting plate is welded onto the hollow mast body; the connecting surrounding plate is welded with the connecting plate, is positioned in the hollow mast body and is welded with the hollow mast body; and the reinforcing rib plate is positioned in an accommodating space formed by surrounding the connecting surroun |
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