公开(公告)号：US09926784B2

公开(公告)日：2018-03-27

申请号：US15031666

申请日：2015-11-30

申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

发明人： Bingwen Li ,  Jianyun Hong ,  Jun Liu ,  Jiyun Zhao ,  Shiqi Chen ,  Liang Zhao

IPC分类号： E21D23/04 ,  E21D23/00

CPC分类号： E21D23/04 ,  E21D23/0008 ,  E21D23/006

摘要： A float-swing hydraulic support, including a top beam, shield beam, elevating frame, base, adjusting jack, two float hydraulic columns, base raising unit, advancing unit, face guard unit, telescopic beam unit, hydraulic control valve block, and a valve block support. The columns are between the top beam and base, with upper ends ball-hinged to the top beam and lower ends ball-hinged to the base; the telescopic beam unit is in the front end of the top beam, and the face guard unit is hinged to the beam unit; the upper end of the shield beam is hinged to the top beam, the lower end is hinged to the upper end of the frame; the upper end of the jack is hinged to the shield beam, the lower end hinged to the base; the ends of the advancing unit are hinged to a scraper conveyor and the base, respectively.