Liftable adjusting device for end hydraulic support of underground gob-side entry retaining

• Main Authors: WANG YING, DONG SHUAI, CHEN HAIYANG, REN PEILIANG, ZHANG SHUAI, LIAN HAOLEI, LIU CHAO, GUO LIN, FAN JIANMIN, HE WEI, MEI GUOLONG, WANG YONGKUN, XIE XIAOFENG, DUAN YAPENG, LI QIANG, GUO HUA, LI GANG, SHANGGUAN PENG, YU FUDE
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model relates to a liftable adjusting device for an underground gob-side entry retaining end hydraulic support, which belongs to the field of coal mine mechanical equipment and comprises afront top beam, a front top beam hydraulic column, a rear top beam, a rear top beam hydraulic column and a base. The base is arranged below the front top beam and is close to the joint of the front top beam and the rear top beam; the front top beam is connected with the base through a front top beam hydraulic column; the rear top beam is connected with the base through a rear top beam hydraulic column; the bottom end of the rear top beam hydraulic column is fixed to the base, and the top end inclines towards the rear top beam. The front top beam is hinged with the rear top beam; the rear topbeam hydraulic column is controlled by the operating handle to stretch out and draw back to enable the included angle a between the rear top beam and the horizontal plane to be larger than or equal to0 and smaller than 90 degr