Automatic nut screwing device for prestress tensioning machine

The utility model discloses an automatic nut screwing device for a prestress tensioning machine, which comprises a hexagonal lock nut, an inner hexagonal sleeve, a cylindrical bearing block, a driven sprocket, a driving sprocket, at least one chain and an oil motor. The hexagonal lock nut is spirall...

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Bibliographic Details
Main Authors ZHU JIANZHOU, ZHANG HOUCHAN
Format Patent
LanguageChinese
English
Published 13.04.2011
Subjects
BUILDING
BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE
FIXED CONSTRUCTIONS
FORMS
HANDLING BUILDING MATERIALS ON THE SITE
REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS
SCAFFOLDING
SHUTTERING
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Summary:The utility model discloses an automatic nut screwing device for a prestress tensioning machine, which comprises a hexagonal lock nut, an inner hexagonal sleeve, a cylindrical bearing block, a driven sprocket, a driving sprocket, at least one chain and an oil motor. The hexagonal lock nut is spirally and rotatably arranged on a threaded pull rod of the tensioning machine, the chains connect the driven sprocket with the driving sprocket, and the oil motor drives the driving sprocket to rotate and is supported on the outer surface of the bearing block. The automatic nut screwing device can automatically lock the nut when the tensioning machine tensions a reinforcing steel bar in a prestressing manner, and overcomes the shortcomings of low efficiency, large labor intensity and high dangerousness of manual nut screwing.
Bibliography:Application Number: CN20102292939U