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1. (WO2018086509) METHODS FOR MOUNTING AND ERECTING MECHANICAL CONSTANT-RESISTANCE SINGLE PROP

Pub. No.:    WO/2018/086509    International Application No.:    PCT/CN2017/109693
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Wed Nov 08 00:59:59 CET 2017
IPC: E21D 15/582
E21D 15/00
Applicants: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
中国矿业大学
Inventors: MIAO, Xiexing
缪协兴
CHEN, Yanlong
陈彦龙
ZHANG, Jixiong
张吉雄
ZHANG, Qiang
张强
WU, Yu
吴宇
DENG, Xuejie
邓雪杰
Title: METHODS FOR MOUNTING AND ERECTING MECHANICAL CONSTANT-RESISTANCE SINGLE PROP
Abstract:
A method for mounting a mechanical constant-resistance single prop, comprising: (1) fitting a rod body (5) within a cylinder body (3) and adjusting the fitting length according to an actual section height of a cut hole or a roadway in a mine; (2) nesting a steel ball sleeve (6) between the rod body (5) and the cylinder body (3), so that the rod body (5) presses the steel ball sleeve (6) to form self-locking; (3) fixedly connecting a limiting cover to the fitting portion of the rod body (5) and the cylinder body (3); (4) mounting and locking a top tray (4) to the upper end of the rod body (5); and (5) vertically erecting the parts of a mechanical constant-resistance single prop that are assembled in the step (4) and mounting the parts on a base. The present invention implements easy, quick and efficient mounting, and saves labor and material resources.