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南通航运职业技术学院学报[ISSN:1006-6977/CN:61-1281/TN]

Title:: The System Design and Characteristic Analysis of Variable Frequency Hydraulic Crane

Author(s):: CAI Dong-lin; Dept. of Marine Engineering, Nantong Vocational & Technical Shipping College

Keywords:: crane; hydraulic system; variable frequency speed adjustment; characteristic analysis

摘要:: 传统的液压起货机存在效率低、噪音大、维护成本高等问题，难以满足现代节能环保的发展要求。变频液

压调速从源头上解决功率匹配问题，电机始终处在高效率的工作状态，避免了电机和液压泵的高速连续运

转，提高了设备的可靠性、使用寿命和能源利用率。本文提出在起货机上运用变频液压调速系统的设计方

案，并对其工作特性进行了分析。

Abstract:: The traditional hydraulic crane has the problems of low efficiency, loud noise and high

maintenance cost, which can hardly meet the requirement for the development of modern energy

saving and environmental protection. The variable frequency hydraulic speed adjustment solves

the power matching problem from its origin. The electric motor always works in a high-

efficiency condition to avoid high-speed continuous running of the motor and hydraulic pump,

and to improve the reliability, service life and energy utilization ratio of the equipment.

This article puts forward the design scheme of variable frequency hydraulic speed adjustment

system on the crane and makes an analysis of its operating characteristics.

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更新日期/Last Update: 2019-12-03