Hybrid-driven front-handling hoisting crane containing single two-degrees-of-freedom closed-loop subchain

Abstract

The invention discloses a hybrid-driven front-handling hoisting crane containing a single two-degrees-of-freedom closed-loop subchain. The hybrid-driven front-handling hoisting crane comprises a crane boom and a crane boom extending and lifting mechanism, wherein the crane boom and the crane boom extending and lifting mechanism are arranged based on a frame, the crane boom comprises a rotating arm and a lifting arm, the lower end of the rotating arm is hinged with the rear part of the frame, the rear end of the lifting arm is hinged with the upper end of the rotating arm, and the front end of the lifting arm is provided with a clamping device; and the crane boom extending and lifting mechanism comprises a connecting rod assembly which is symmetrically arranged on both sides of a position on the lower front side of the crane boom, the connecting rod assembly comprises a front rocking rod, a front connecting rod, a rear connecting rod and a rear rocking rod, the lower end of the front rocking rod is hinged with the front part of the frame, the lower end of the front connecting rod is hinged with the upper end of the front rocking rod, the lower end of the rear rocking rod is hinged with the middle part of the frame, the lower end of the rear connecting rod is hinged with the upper end of the rear rocking rod, and the upper end of the rear connecting rod and the upper end of the front connecting rod are mutually hinged in the rear middle part of the lifting arm so as to form a compound hinge. The crane disclosed by the invention has the advantages of small motion inertia, flexible track output, high precision, good stiffness and dynamic performance, high reliability, and the like.

Description

(1) Technical field: [0001] The invention relates to port hoisting machinery, in particular to a mixed-driven front-loading crane with a single two-degree-of-freedom closed-loop sub-chain. (2) Background technology: [0002] The container reach stacker crane (also known as the container reach stacker) is an important port machinery, which has the advantages of convenient operation and high stacking layers, and plays an important role in various port container handling, stacking and transportation operations. . As disclosed in CN103332220A, CN101723256A, CN202322093U, CN2773035, and CN201890746U, the container reach cranes are all driven by the combined drive of the telescopic oil cylinder and the pitch oil cylinder to complete the task. [0003] However, the above-mentioned traditional container reach cranes are all purely hydraulically driven, and their hydraulic systems have disadvantages such as high requirements for parts processing and assembly, high manufacturing, mai...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the present invention proposes a single two-degree-of-freedom closed-loop sub-chain mixed-drive reach stacker, which mainly solves the problem of high processing and assembly requirements, high maintenance costs, short service life, and oil leakage of traditional hydraulic container reach stacker cranes. and other technical issues

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