31-08-2011 дата публикации
Номер: CN0102166744A
Принадлежит:
The invention discloses a device for horizontally installing a heavy nut, which comprises a lifting lug, a lifting ring, a plurality of bolts, a plurality of ball bodies and a transition lantern ring, wherein the lifting lug is arranged on the lifting ring, the transition lantern ring is arranged in the lifting ring, more than two bolt holes are symmetrically arranged in the outer cylindrical surface of the lifting ring by using a center shaft where the lifting lug is in, the outer surface of the transition lantern ring is provided with an arc groove in the circumference direction, the bolts are arranged in the bolt holes, and the ball bodies are arranged in contact parts of the bolt holes and the arc groove in the transition lantern ring and the lifting ring. The device is used for improving the traditional installing mode so as to increase lifting stability; and the steel balls are arranged on the lifting ring, and sliding friction is changed into rolling friction, thus the labor intensity ...
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