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Patent Searching and Data


Title:
HOLE-DRILLING MECHANICAL ARM
Document Type and Number:
WIPO Patent Application WO/2021/103768
Kind Code:
A1
Abstract:
A hole-drilling mechanical arm. The center of a rotating base (9) serves as a circle center, the mechanical arm serves as a radius, and height determination is performed in a circle-drawing mode, ensuring the perpendicularity of the hole-drilling arm (21) to the position where a working point is located. By means of controlling the rotational angle between a height adjustment arm and an angle adjustment arm (17), the straightness of the mechanical arm is ensured. The folding mechanical arm is convenient to transport, and is suitable for regions of different working radii. The height and angle of the mechanical arm are adjustable, solving the problem of difficulty in drilling holes for suspended support frames at different heights in the inner wall of the arc of a subway tunnel. Using a mechanical arm hole-drilling structure, labor investment is reduced, costs are saved, and working efficiency is improved.

Inventors:
WANG DAWEI (CN)
JI XIAOYING (CN)
ZHAO GANG (CN)
CHENG SHUANG (CN)
QI MENGXING (CN)
XU SHIBIN (CN)
QIU XIAOJIE (CN)
WU XIONG (CN)
WU WEI (CN)
Application Number:
PCT/CN2020/116293
Publication Date:
June 03, 2021
Filing Date:
September 18, 2020
Export Citation:
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Assignee:
CHINA RAILWAY NO 9 GROUP ELECTRICAL ENG CO LTD (CN)
International Classes:
B25J9/02; E21B7/02
Foreign References:
CN107427868A2017-12-01
CN108044597A2018-05-18
CN111648720A2020-09-11
CN111660277A2020-09-15
CN111677457A2020-09-18
CN206048530U2017-03-29
CN206233858U2017-06-09
JPS58186538A1983-10-31
JPH11303420A1999-11-02
CN202684916U2013-01-23
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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