The invention discloses a boom structure for a mast crane, which is a detachable double-arm combined structure with two symmetrical sides, and comprises a bottom cross beam, a root section, a standard section, a reinforcing section, a lower-layer connecting beam, an upper-layer connecting beam, a head section, a head cross beam, an auxiliary arm, a boom, an amplitude variation system and a propeller strut, the root section is connected with the bottom cross beam and the standard section, the standard section is connected with the reinforcing sections, the reinforcing sections on the two sides of the arm frame are connected through the lower-layer connecting beam and the upper-layer connecting beam, the head section is connected with the uppermost-layer reinforcing section and the head cross beam, and the auxiliary arm is installed on the head cross beam; and the other end of the amplitude variation system is connected with the propeller strut. The arm support is of a double-arm structure, the arm sections can be detached and interchanged, machining, manufacturing, assembling and disassembling are convenient, and the process requirement is lowered; synchronous stress of the two sets of single arm structures is guaranteed, and overweight and overwidth of transportation are avoided.
本发明公开了一种桅杆起重机用臂架结构,所述臂架为可拆分的两侧对称的双臂组合结构,包括底部横梁、根部节、标准节、加强节、下层连梁、上层连梁、头部节、头部横梁、副臂、臂架、变幅系统和人字架;所述根部节连接底部横梁和标准节,标准节与加强节连接,臂架两侧的加强节通过下层连梁和上层连梁连接,头部节连接最上层加强节和头部横梁,副臂安装在头部横梁上;变幅系统一端与头部横梁连接,另一端连接人字架。本发明臂架为双臂结构,臂节之间可拆分、可互换,方便了加工制作和安拆,降低了工艺要求;保证了两组单臂结构的同步受力,避免了运输的超重和超宽。
Boom structure for mast crane
一种桅杆起重机用臂架结构
2023-11-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |
Boom type mast of a high-rise tower crane and mounting mode of boom type mast
Europäisches Patentamt | 2020
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