Landing gear for stepping moving type propeller strut of floating crane and landing steps of landing gear

Abstract

The invention discloses a landing gear for a stepping moving type propeller strut of a floating crane and landing steps of the landing gear, relates to the field of cranes, and in particular relates to a landing gear of a propeller strut of a heavy floating crane and landing steps of the landing gear. The structure of the landing gear comprises a propeller strut, a platform and a boat body, wherein the platform is arranged on the boat body; the propeller strut is hinged with the platform; the landing gear is characterized in that an upper screw rod assembly is arranged at the lower part of the propeller strut; a lower screw rod assembly is arranged in the position corresponding to the upper screw rod assembly at the upper part of the platform; the upper end and the lower end of a support bracket are respectively hinged with an upper guide pulley on the upper screw rod assembly and a lower guide pulley on the lower screw rod assembly. The landing gear has the characteristics that the landing gear is safe and reliable, the elevation speed is high, the structure is novel, the machining is simple and convenient, the use is convenient, and the like, so that the novel landing gear for the stepping moving type propeller strut of the floating crane integrates the reliability, the economy and the practicability.

Description

Technical field [0001] The step-by-step mobile herringbone landing device of a floating crane and the landing steps thereof of the present invention relate to the field of cranes, in particular to the landing device of the herringbone of a heavy floating crane and the landing steps thereof. Background technique [0002] At present, with the increase in the number of offshore / inland river bridges and culverts, only the leveling of the boom cannot guarantee the smooth passage of floating cranes (especially heavy floating cranes) through bridges and culverts. Therefore, the gables at the highest point of the floating crane’s navigable state must be capable of landing Features. [0003] The lift-off function of the herringbone refers to the lowering of the herringbone to the minimum height limit when passing a bridge or culvert, and then lifting the herringbone to the normal working position after passing. [0004] There are two traditional ways for floating cranes to raise and lower wi...

AI Technical Summary

Problems solved by technology

[0006] (1) There is no self-locking function, and other safety protection devices must be installed to prevent the sudden fall of the herringbone frame

Images