| 摘要 |
Provided is a crane jib transition structure, including a jib section, a transition section and a supporting structure. The jib section matches with the transition section, and they fixedly connect to each other. The upper end of the supporting structure fixedly connects to the upper end of the side of the jib section. The bottom end of the supporting structure fixedly connects to the bottom end of the corresponding side of the transition section. The middle part of the supporting structure fixedly connects to the connection point between the side of jib section and the corresponding side of transition section. Therefore, the crane jib transition structure can not only achieve the strength of a crane jib transition structure, but also achieve the strength and the overall stability of a crane jib, by using the supporting structure connecting to between the crane jib section and transition section. |
| 主权项 |
1. A crane jib transition structure, including a jib section, a transition section and a supporting structure, said jib section having an upper end, a bottom end with an end face, and end two sides each extending between the upper and bottom ends of the jib section, said transition section having an upper end with an end face, a bottom end, and two sides each extending between the upper and bottom ends of the transition section, the end face of the transition section having the same size with the end face of the jib section, and the upper end of the transition section and the bottom end of the jib section fixedly connecting to each other at a part between a side of the jib section and a side of the transition section, the supporting structure having an upper end, a bottom end and a middle part, the upper end of said supporting structure fixedly connecting to a side of the upper end of said jib section, the bottom end of said supporting structure fixedly connecting to a side of the bottom end of the transition section, the middle part of said supporting structure fixedly connecting to the part between the side of the jib section and the side of the transition section, said supporting structure being a box beam structure or a truss jib structure. |
