Title:
DIGITAL DEVICE AND METHOD FOR MEASURING THE AXIAL LOAD OF A TORQUE-SHEAR-TYPE HIGH STRENGTH BOLT
Document Type and Number:
WIPO Patent Application WO/2011/159022
Kind Code:
A2
Abstract:
The present invention relates to a digital device and a method for measuring the axial load of a torque-shear-type high strength bolt. One embodiment of the digital device of the present invention includes: a main body portion which is connected to an electromotive wrench fastening a torque-shear-type high strength bolt; a measurement portion disposed at the main body portion to measure the axial load of the torque-shear-type high strength bolt by using a quantity of the electricity from the electromotive wrench; a power supply portion disposed at the main body portion and including a power lead-in portion for receiving an external power supply and a power lead-out portion for supplying the power to the electromotive wrench; and a display portion displaying the axial force value measured by the measurement portion.
Inventors:
LEE, Hyeon-Ju (Green Growth Research Institute, Korea Electric Power Research Institute Munji-dong, Yuseong-gu, Daejeon 305-760, 305-760, KR)
이현주 (대전 유성구 문지동 한전전력연구원 녹색성장연구소, 305-760 Daejeon, 305-760, KR)
NAH, Hwan-Seon (Green Growth Research Institute, Korea Electric Power Research Institute Munji-dong, Yuseong-gu, Daejeon 305-760, 305-760, KR)
이현주 (대전 유성구 문지동 한전전력연구원 녹색성장연구소, 305-760 Daejeon, 305-760, KR)
NAH, Hwan-Seon (Green Growth Research Institute, Korea Electric Power Research Institute Munji-dong, Yuseong-gu, Daejeon 305-760, 305-760, KR)
Application Number:
KR2011/003299
Publication Date:
December 22, 2011
Filing Date:
May 03, 2011
Export Citation:
Assignee:
KOREA ELECTRIC POWER CORPORATION (411 Youngdong-Daero, Gangnam-gu, Seoul 135-791, 135-791, KR)
한국전력공사 (서울시 강남구 영동대로 411, 135-791 Seoul, 135-791, KR)
LEE, Hyeon-Ju (Green Growth Research Institute, Korea Electric Power Research Institute Munji-dong, Yuseong-gu, Daejeon 305-760, 305-760, KR)
이현주 (대전 유성구 문지동 한전전력연구원 녹색성장연구소, 305-760 Daejeon, 305-760, KR)
한국전력공사 (서울시 강남구 영동대로 411, 135-791 Seoul, 135-791, KR)
LEE, Hyeon-Ju (Green Growth Research Institute, Korea Electric Power Research Institute Munji-dong, Yuseong-gu, Daejeon 305-760, 305-760, KR)
이현주 (대전 유성구 문지동 한전전력연구원 녹색성장연구소, 305-760 Daejeon, 305-760, KR)
International Classes:
G01L5/12; B25B21/00; G01L5/00; G01L5/24
Attorney, Agent or Firm:
NAM, Choong Woo et al. (3F Kyungbin Bldg, 517-18 Dogok-dong, Gangnam-gu, Seoul 135-854, 135-854, KR)
Claims: