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Title:
SINGLE BAR SAME GROUP AUTOMATIC TENSIONING AND LOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/014884
Kind Code:
A1
Abstract:
A single bar same group automatic tensioning and locking device, comprising a tensioning beam (1) and a plurality of tensioning modules arranged in parallel, each tensioning module comprising a jack (2) and a tensioning rod (3), the jack (2) being mounted within the tensioning beam (1), the bottom of the jack (2) being fixed to the tensioning beam (1), the top of the jack (2) being connected to one end of the tensioning rod (3), the other end of the tensioning rod (3) extending out from the tensioning beam (1), the tensioning module also being provided with a force measurement sensor. The tensioning and locking device simultaneously carries out synchronous tensioning of single prestress steel bars, single bar independent sensors control a tensioning force, and the tensioning force is automatically locked after automatic tensioning has been carried out, so that a tensioning force value is uniform, stable and small in error, automatic machinery replaces manual operations, work accuracy and production yield are increased, and production costs are lowered.

Inventors:
WANG, Jijun (Railway Engineering Research Institute Of China Academy Of Railway Sciences, No.2 Daliushu Road, Haidian District, Beijing 1, 100081, CN)
XIE, Tieqiao (No.62 Shuangjiang Road, Beichen District, Tianjin 9, 300499, CN)
ZHANG, Songqi (No. 24, South Yang Road Shahe Town, Changping District, Beijing 6, 102206, CN)
WANG, Meng (Railway Engineering Research Institute Of China Academy Of Railway Sciences, No.2 Daliushu Road, Haidian District, Beijing 1, 100081, CN)
TIAN, Guihua (No.62 Shuangjiang Road, Beichen District, Tianjin 9, 300499, CN)
ZHAO, Yong (Railway Engineering Research Institute Of China Academy Of Railway Sciences, No.2 Daliushu Road, Haidian District, Beijing 1, 100081, CN)
WANG, Shuyi (No. 24, South Yang Road Shahe Town, Changping District, Beijing 6, 102206, CN)
ZHANG, Chongsheng (No.62 Shuangjiang Road, Beichen District, Tianjin 9, 300499, CN)
SHI, Cheng (Railway Engineering Research Institute Of China Academy Of Railway Sciences, No.2 Daliushu Road, Haidian District, Beijing 1, 100081, CN)
ZHANG, Xin (No.62 Shuangjiang Road, Beichen District, Tianjin 9, 300499, CN)
Application Number:
CN2017/100898
Publication Date:
January 25, 2018
Filing Date:
September 07, 2017
Export Citation:
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Assignee:
CHINA ACADEMY OF RAILWAY SCIENCES RAILWAY ENGINEERING RESEARCH INSTITUTE (No.2 Daliushu Road, Haidian District, Beijing 1, 100081, CN)
SIVERY DRAGON PRESTRESSED MATERIALS CO., LTD TIANJIN (No.62 Shuangjiang Road, Beichen District, Tianjin 9, 300499, CN)
BEIJING TIEKE SHOUGANG RAIL-TECH. CO., LTD (No. 24, South Yang Road Shahe Town, Changping District, Beijing 6, 102206, CN)
International Classes:
B28B23/04
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Floor 16, Tower A Indo Building,A48 Zhichun Road, Haidian District, Beijing 8, 100098, CN)
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