Title:
ROCKBURST-ORIENTED WHILE-DRILLING DEVIATION-CORRECTING DEVICE FOR ANTI-BURST DRILLING ROBOT
Document Type and Number:
WIPO Patent Application WO/2023/159940
Kind Code:
A1
Abstract:
A rockburst-oriented while-drilling deviation-correcting device for an anti-burst drilling robot. A deviation-correcting structure is provided between a drill bit and an auger. A drill bit connection rod (2) passes through the center of an electric control machine (15) to be connected to the auger, the drill bit connection rod (2) being coaxial with the electric control machine (15). A plurality of oil pumps (11) are evenly arranged along the circumference of the drill bit connection rod (2), the top of each oil pump (11) being connected to a corresponding oil cylinder (6) by means of an oil feeding pipe (8) and an oil discharge pipe (10), that is, each oil pump (11) being cooperated with the corresponding oil cylinder (6) to work independently. An oil cylinder piston (5) is connected to the interior of each oil cylinder (6), an offset block (1) being fixed at an end of each oil cylinder piston (5). The offset blocks (1) are in contact with a coal wall to apply reverse displacement and counter-acting force to the auger and the drill bit, and deflection force and deflection displacement of a drilling robot during a drilling process are counteracted according to different extension and retraction quantities of the oil cylinders (6), and therefore correction of deviation and torsion of an auger mechanism can be achieved.
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Inventors:
SI LEI (CN)
WANG ZHONGBIN (CN)
KANG MINGXIA (CN)
TAN CHAO (CN)
YAN HAIFENG (CN)
LIU XINHUA (CN)
WEI DONG (CN)
LIANG BIN (CN)
ZOU XIAOYU (CN)
ZHAO LALA (CN)
GU JINHENG (CN)
DAI JIANBO (CN)
WANG QINGFENG (CN)
XIN DEZHONG (CN)
WANG ZHONGBIN (CN)
KANG MINGXIA (CN)
TAN CHAO (CN)
YAN HAIFENG (CN)
LIU XINHUA (CN)
WEI DONG (CN)
LIANG BIN (CN)
ZOU XIAOYU (CN)
ZHAO LALA (CN)
GU JINHENG (CN)
DAI JIANBO (CN)
WANG QINGFENG (CN)
XIN DEZHONG (CN)
Application Number:
PCT/CN2022/121662
Publication Date:
August 31, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
CHINA COAL TECH & ENGINEERING GROUP CHONGQING RESEARCH INSTITUTE CO LTD (CN)
CHINA COAL TECH & ENGINEERING GROUP CHONGQING RESEARCH INSTITUTE CO LTD (CN)
International Classes:
E21B7/10
Foreign References:
| CN114635644A | 2022-06-17 | |||
| CN109763777A | 2019-05-17 | |||
| CN101858198A | 2010-10-13 | |||
| CN110821407A | 2020-02-21 | |||
| CN110630179A | 2019-12-31 | |||
| CN110185391A | 2019-08-30 | |||
| JP2002155690A | 2002-05-31 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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