Screw head protection device

• Main Authors: LYU JIANYUN, WU MAOYANG, ZHANG JINHUA, DONG MENG, MU YANBING, LIU CHENGTAO
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• 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 provides a screw rod screw head protection device, which comprises a screw rod protection screw head and a sliding mechanism, the screw rod protection screw head is a cylinder with an opening at one end, an inner thread is arranged on the inner side of the opening and can be in threaded connection with a male buckle end of a screw drill, and the sliding mechanism is arranged on the screw rod protection screw head. The sliding mechanism comprises a connecting base and universal balls arranged on the connecting base, and the universal balls face the outer side of the connecting base and are evenly distributed at the end of the connecting base. The screw and screw head protection device can be applied to the process of loading and unloading a screw drilling tool on a coal bed gas drilling machine rod loading mechanism, and the screw drilling tool screw head is protected when the screw drilling tool is loaded and unloaded, so that the problem that the screw and screw head is abraded when the scr