Automatic come and go pulley device

• Main Authors: Wang Ben, Cui Li, Wang Jianjie, Liu Yuanfang, Yang Sheng, Liu Debin, Liu Dan, Zhao Nanjing, Gao Songhao, Li Zhiming, Duan Wenliang, Hong Changmin, Wu Hao, Ma Chongjun, Guan Fanyi, Qiao Fuzhen
• Format: Patent
• Language: Chinese; English
• Published: 24.08.2016
• 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 an oil well light maintenance operation?technology field, in particular to automatic come and go pulley device. The device's coaster is installed on the coaster track and can be slided on the coaster track, coaster track one end is fixed with the energy storage box, the energy storage box includes the casing, the casing center is equipped with the axle, install the bearing between axle and the casing, install the wind spring in the casing, wind spring one end links to each other with the axle, the bearing lid is connected to the casing lower extreme, the gland is connected to the casing upper end, the gland outer end is connected with and keeps off the rope ware, epaxial end passes the gland, install the bearing between axle and the gland, the fixed cover of epaxial end is equipped with the cylinder, the crown of roll end is equipped with the retaining ring and passes through the bolt fastening, the winding has wire rope on the cylinder, the coaster is connected to the wire rope o