Title:
METHODS FOR MOUNTING AND ERECTING MECHANICAL CONSTANT-RESISTANCE SINGLE PROP
Document Type and Number:
WIPO Patent Application WO/2018/086509
Kind Code:
A1
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.
Inventors:
MIAO XIEXING (CN)
CHEN YANLONG (CN)
ZHANG JIXIONG (CN)
ZHANG QIANG (CN)
WU YU (CN)
DENG XUEJIE (CN)
CHEN YANLONG (CN)
ZHANG JIXIONG (CN)
ZHANG QIANG (CN)
WU YU (CN)
DENG XUEJIE (CN)
Application Number:
PCT/CN2017/109693
Publication Date:
May 17, 2018
Filing Date:
November 07, 2017
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
E21D15/582; E21D15/00
Foreign References:
CN106499420A | 2017-03-15 | |||
CN106499421A | 2017-03-15 | |||
CN106285737A | 2017-01-04 | |||
CN104879145A | 2015-09-02 | |||
CN105179402A | 2015-12-23 | |||
US4431348A | 1984-02-14 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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