Multi-hole-site lifting mechanism for driller platform of workover rig

• Main Authors: ZHANG JIANHONG, YANG SHUAI, YI LONGGANG, LIU ZHENGQIN, LU XIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a multi-hole-site lifting mechanism for a driller platform of a workover rig. The multi-hole-site lifting mechanism comprises a derrick rear support, a rail, a roller support, two roller assemblies and the driller platform. The track comprises two sub-tracks which are arranged in parallel, the two sub-tracks are welded to the side face of the derrick rear support, the track faces of the two sub-tracks are oppositely arranged, and a plurality of through holes are evenly formed in the sub-tracks at intervals; the two roller assemblies are arranged at the two ends of the roller support and embedded in the rail faces of the corresponding sub-rails. And the driller platform is connected with the roller bracket. The roller mechanism vertically rolls along the track, the lifting device is operated to stably lift the roller support, the through hole in the sub-track is aligned with the pin shaft hole in the fixing plate, then the pin shaft is inserted and pulled out, adjustment of multipl