Crawler crane capable of performing double-hook lifting and structure design method thereof

Abstract

The invention relates to a crawler crane capable of performing double-hook lifting and a structure design method thereof. The crawler crane capable of performing double-hook lifting comprises a main arm and an auxiliary arm, wherein a main hook is suspended on one end of the main arm and an auxiliary hook is suspended on one end of the auxiliary arm; both the main hook and the auxiliary hook can be used for performing lifting separately or can cooperate for lifting. The crawler crane can meet the special lifting requirements of consumers, the working efficiency of the crawler crane is enhanced, two hooks can be suspended simultaneously under an auxiliary arm working condition, the lifting capabilities of the main arm and the auxiliary arm can be achieved, the two hooks can be used for performing lifting simultaneously, the application range of the crawler crane is expanded sufficiently and the market competitiveness of the crawler crane is enhanced.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a crawler crane capable of hoisting with double hooks and a structural design method. Background technique [0002] The operating conditions of crawler cranes are generally divided into main arm operating conditions and auxiliary arm operating conditions. The main arm of the crawler crane has a large lifting capacity, but its hoisting scope and seating height are limited. The jib (including fixed jib or tower jib) of crawler crane, as the key load-bearing structural part of the jib system of crawler crane, can greatly expand the scope of hoisting operation of crawler crane, and is one of the common working conditions for users. The jib system is generally composed of each jib section of the jib, jib bracket, jib front pull plate (cable), jib rear pull plate (cable) and jib anti-tilt device, and is installed on the top of the main jib. The installation is more complicated th...

AI Technical Summary

Problems solved by technology

The choice of hoisting conditions can only be made in advance. If it needs to be replaced, the boom can only be dropped on the ground again and installed in advance. Therefore, the interchange between crawler cranes must be dismantled. Installation, complex operation, low work efficiency

And in some special hoisting fields, such as: shield machine hoisting, hoisting of long chemical components, etc., it is necessary to lift two cranes at the same time, and the double hooks cooperate to realize the flipping action of the hoisted object (as shown in Figure 2 (a), Fig. 2(b), and Fig. 2(c)), the simultaneous lifting of two cranes requires the cooperation of different operators, which has certain difficulty in cooperation and low work efficiency

[0004] It can be seen that the actual engineering adaptability of the current crawler cranes is small, the limitations are large, the operation is complicated, and the work efficiency is low. Moreover, in the current crane design specifications, considering factors such as structural strength and overall machine stability, each Only one hook is allowed under working conditions

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