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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
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No.9 Gaoguannong,Daxue Road,Hangzhou,China
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meem_contribute@163.com
Abstract: Aiming at the problem of load scale and safe operation of the high orderpicking truck, an auto scale method based on hydraulic circuit pressure measurement was proposed and applied to safe operation of the forklift truck. According to the working principle of the forklift system, the advantages and disadvantages of several scale methods were analyzed comparatively. The mathematical relationship between pressure of the lifting hydraulic cylinder and the cargo weight was obtained by theoretical analysis of the system dynamic model in the process of cargo lifting. The hardware composition of the forklift scale system including the sensor, the main controller, the display and the communication link was provided. The least square method was utilized to obtain the pressure-weight curve by function fitting. The safe operation of the forklift truck was researched by combining the scale technology with the height measurement technology of the forklift system through the wire draw encoder. The scale test results show that the scale error limit of the forklift scale system under the high load condition based on the pressure measurement of the lifting hydraulic cylinder is≤3%. The load auto scale and safe operation of the order-picking truck are realized autonomously at the same time.
Key words: high order-picking forklift; pressure measurement; auto scale technology;the least square method; safe operation
WANG Ban, WANG Xin-jie, YE Guo-yun, et al. Hydraulic auto scale system of high order-picking Forklift and its application［J］.Journal of Mechanical & Electrical Engineering, 2021,38(12):1636-1640,1646.
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
