Two-degree-of-freedom hybrid drive controllable hoisting crane

Abstract

The invention discloses a two-degree-of-freedom driving controllable hoisting cane comprising a hoisting arm arranged based on a frame, a hoisting arm lifting mechanism and a hoisting arm extending mechanism, wherein the hoisting arm comprises a rotating arm and an extending arm, the lower end of the rotating arm is hinged with the rear middle part of the frame, the rear end of the extending arm is hinged with the upper end of the rotating arm, and a clamping device is installed at the front end of the extending arm; the hoisting arm lifting mechanism is arranged at the front lower part of the hoisting arm and comprises a lifting rocker rod and a lifting connection rod, the lower end of the lifting rocker rod is hinged to the front part of the frame, the lower end of the lifting connection rod is hinged with the upper end of the lifting rocker rod, and the upper end of the lifting connection rod is hinged with the rear middle part of the extending arm; the hoisting arm extending mechanism is arranged at the rear upper part of the hoisting arm and comprises a protraction rocker rod and a protraction connection rod, the lower end of the protraction connection rod is hinged to the rear part of the frame, the rear end of the protraction connection rod is hinged to the upper end of the protraction rocker rod, and the front end of the protraction connection rod is hinged with the middle front part of the extending arm. The crane has the advantages of small movement inertia, flexible track output, high precision, good rigidity, good dynamic performance, high reliability and the like.

Description

[0001] (1) Technical field: [0002] The invention relates to port hoisting machinery, in particular to a two-degree-of-freedom mixed drive controllable hoisting crane. [0003] (2) Background technology: [0004] 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. [0005] 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, maintenance, and ...

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a two-degree-of-freedom mixed-drive controllable lifting crane, which mainly solves the technical problems of traditional hydraulic container front-loading cranes, such as high processing and assembly requirements, high maintenance costs, short service life, and oil leakage.

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