Fastening device special for preventing gob-side roadway shoulder anchor cable from being cut off

• Main Authors: LIU XIAOHU, ZHOU GANG, WANG CHENGLAI, SHEN ZHIPING, MA DEPENG, ZHAO CHUNXIAO
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2022
• 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 special fastening device for preventing a gob-side roadway shoulder anchor cable from being cut off. An existing roadway shoulder anchor cable is not resistant to shearing, and a break angle is easily generated at a base plate when a stratum deforms. Therefore, the special fastening device comprises a base plate, a lock hoop and a lock catch, and is characterized by further comprising a cylindrical rolling shaft, a platform is arranged in the middle section of the cylindrical rolling shaft, a vertical through hole is formed in the platform, a matched anchor cable penetrates through the vertical through hole, the lock hoop is pressed on the platform, and the lock catch is arranged on the base plate. And the outer circumferential surfaces of the cylindrical rolling shafts on the two sides of the vertical through hole are pressed on the outer surfaces of the base plates. During installation, the axis of the cylindrical rolling shaft is perpendicular to the vertical cross section of