The invention provides a supporting leg with good stability for a portal crane. The supporting leg with good stability for the portal crane comprises a cross beam and supporting leg structures fixed to the two sides of the bottom end of the cross beam, wherein each supporting leg structure comprises two n-shaped frames, cross frames at the top ends of the corresponding two n-shaped frames are crossed and fixedly connected, the cross frames at the top ends of the corresponding two n-shaped frames are fixedly connected with the bottom end of the cross beam, the bottom ends of side frames of thecorresponding two n-shaped frames are jointly and fixedly connected with a base, and the two side frames of each n-shaped frame are conically shrunk from the bottom end to the corresponding transverseframe at the top end. According to the supporting leg, each supporting leg structure is designed into the corresponding two n-shaped frames, and the corresponding two n-shaped frames are arranged inthe crossed mode, so that the overall stability performance is improved, and weight reduction is facilitated on the basis that the structural strength is enhanced.
本发明提供了一种门式起重机用的稳定性好的支腿,该门式起重机用的稳定性好的支腿包括:横梁,以及固定在所述横梁底端两侧的支腿结构;其中,所述支腿结构均包括两个n形架,所述两个n形架顶端的横架呈十字交叉状并固定连接,且所述两个n形架顶端的横架均与所述横梁底端固定连接,所述两个n形架的侧架底端共同固定连接有底座,且每个n形架的两个侧架均自底端向顶端的横架锥形收缩。本发明通过将支腿结构设计为两个n形架,并且两个n形架十字交叉设置,这样有助于提高整体稳定性能,而且在加强结构强度的基础上,有助于减重。
Supporting leg with good stability for portal crane
一种门式起重机用的稳定性好的支腿
2021-01-29
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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European Patent Office | 2023
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