Patent ID: 8154168

Claim:
A fixing enhancement mechanism for large iron core, comprising: an iron core composed of several arc-shaped bodies, the arc-shaped bodies being successively connected in an annular form with their curvature centers coinciding with each other; and two end rings coaxially fixedly connected to two axial ends of the iron core respectively for keeping the iron core in the annular form, the fixing enhancement mechanism being characterized in that the fixing enhancement mechanism further comprises an enhancement section having several rod-shaped enhancement members, first ends and second ends of the enhancement members being respectively connected to the end rings, whereby the enhancement members are bridged between the end rings in abutment with outer arc surfaces of the arc-shaped bodies of the iron core; wherein several pairs of through holes are respectively formed on the end rings, the through holes having axes in parallel to the axis of the iron core, several pairs of threaded holes at the first and second ends of the enhancement members corresponding to the through holes respectively, several pairs of connection bolts being respectively passed through the through holes and screwed in the threaded holes; wherein each through hole is axially sequentially divided into a large diameter section, a small diameter section and an annular shoulder section defined between the large diameter section and the small diameter section, the small diameter section being coaxially serially connected to the threaded hole of the enhancement member.