The invention belongs to the technical field of cranes, particularly relates to a main beam, and provides a main beam of a crane and the crane. A main beam of the crane comprises an upper chord beam, a lower chord beam and a diagonal bracing unit, and the diagonal bracing unit is in a herringbone shape and is composed of a long diagonal bracing piece and a short diagonal bracing piece. The bottom ends of the long and short diagonal bracing pieces are connected with the lower chord beam, the top end of the short diagonal bracing piece is connected to the middle of the long diagonal bracing piece in the length direction, or the top ends of the long and short diagonal bracing pieces are connected with the upper chord beam, and the bottom end of the short diagonal bracing piece is connected to the middle of the long diagonal bracing piece in the length direction; every two adjacent diagonal bracing units form a diagonal bracing unit group, and the diagonal bracing unit groups are arranged in the extension direction of a main beam of the crane; the long inclined strut pieces in the same inclined strut unit group are adjacently arranged in the extending direction of the main beam of the crane, or the short inclined strut pieces in the same inclined strut unit group are adjacently arranged in the extending direction of the main beam of the crane, and the technical problem that in the prior art, X-shaped inclined strut units or V-shaped inclined strut units of the main beam are inconvenient to machine can be solved.
本发明属于起重机技术领域,具体涉及一种主梁,提供了一种起重机的主梁及起重机。起重机的主梁包括上、下弦梁及斜撑单元,斜撑单元为“人”字形,由长斜撑件和短斜撑件组成;长、短斜撑件的底端均和下弦梁连接、短斜撑件的顶端连接在长斜撑件的长度方向的中部,或者长、短斜撑件的顶端均和上弦梁连接、短斜撑件的底端连接在长斜撑件的长度方向的中部;每相邻两个斜撑单元形成一个斜撑单元组,各斜撑单元组沿起重机的主梁的延伸方向排布;同一斜撑单元组中的长斜撑件沿起重机的主梁的延伸方向相邻布置,或者同一斜撑单元组中的短斜撑件沿起重机的主梁的延伸方向相邻布置,能够解决现有技术中主梁的X形斜撑单元或V形斜撑单元加工不便的技术问题。
Main beam of crane and crane
一种起重机的主梁及起重机
17.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |