Hoisting traction mechanism of arm line-like cantilever crane

Abstract

The invention discloses a hoisting traction mechanism of an arm line-like cantilever crane, which comprises a winding drum, main beams, an underframe and a hoisting hook and is characterized in that: the underframe is provided with a hoisting driving device and a winding drum, and is arranged in a neutral position in the middle of the lower parts of the two main beams, a guide pulley is fixed on one side of the winding drum, a reversing pullet is fixed at the upper end of the main beam, two fixed pulleys are fixed on a wheel box of an operating trolley, a movable pulley is assembled with the hoisting hook together, a balance pulley is arranged on a fixed frame and fixed on an end beam through connecting bolts, and wire ropes are fixed on two sides of a winding drum stop ring by pressure plates. The hoisting traction mechanism has the advantages that the hoisting traction mechanism can ensure the hoisting of the arm line-like cantilever crane, has low cost, ensures that the wire ropes entering the winding drum are arranged orderly in the hoisting process, prevents the messy ropes and prolongs the service life of the wire ropes.

Description

technical field [0001] The invention relates to a hoisting traction mechanism, which is especially suitable for use on arm-type cantilever cranes with relatively large lifting capacity, relatively large cantilever, and relatively high lifting height. Background technique [0002] Due to the rapid development of my country's shipbuilding industry, the existing arm-type cantilever cranes have small cantilever and lifting heights, and most of the lifting mechanisms use electric hoists and self-running trolley structures. The lifting height (23.5 meters) and the large cantilever (arm length 11.5 meters) are no longer suitable for frequent use. This mechanism can effectively reduce the wheel pressure of the horizontal track and the inertial impact caused by the starting or braking of the trolley. The hoisting and running mechanisms are all drawn by hoists. Contents of the invention [0003] The task of the present invention is to propose a lifting method that can satisfy the li...

AI Technical Summary

Problems solved by technology

[0002]With the rapid development of my country's shipbuilding industry, most of the existing arm-type cantilever cranes use electric hoist and self-running trolley as the lifting mechanism due to the small cantilever and lifting height The structure of these two mechanisms is no longer suitable for places with large tonnage (12T), large lifting height (23.5 meters), and large cantilever (arm length 11.5 meters).

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