连续压机入口段液压比例控制系统的设计  

Design of Hydraulic Proportional Control System for Infeed Section of Continuous Press

作　　者：陈光伟[1] 陈相宇 曲发义[3] 花军[2] 朱良宽[2] 王丙军 Chen Guangwei;Chen Xiangyu;Qu Fayi;Hua Jun;Zhu Liangkuan;Wang Bingjun(Northeast Forestry University,Harbin 150040,P.R.China;BBMG TINTAN(Tangshan)Wood Panels Co.,LTD)

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040 [2]东北林业大学,哈尔滨150040 [3]东北林业大学研究生院,哈尔滨150040 [4]金隅天坛(唐山)木业有限公司

出　　处：《东北林业大学学报》2021年第6期124-129,共6页Journal of Northeast Forestry University

基　　金：国家林业局“948”项目(2014-4-46);中国博士后科学基金面上项目(2013M541330)。

摘　　要：结合连续压机入口段的结构及其压制板坯时热压板的变形要求、板坯的排气需求、入口段加压油缸的各项控制要求,应用液压比例控制系统的设计方法,设计了连续压机入口段液压比例控制系统的结构,分析了系统进行同步位移控制与压力控制的工作原理;以中间加压油缸为基准,划分了控制单元,建立了系统的开环传递函数,经参数设计得到单元控制系统数学模型。以生产12 mm厚纤维板为例,利用Matlab、AMESim软件对系统的稳定性、响应的快速性及加压油缸的位移同步性能等进行了仿真分析,结果表明:设计的液压比例控制系统各项性能指标,满足连续压机入口段的生产需求。Combing with the structure of the entrance section of the continuous press,the deformation requirements of the hot pressing plate,the exhaust requirements of the slab and the control requirements of the pressure cylinder in the entrance section,the structure of the hydraulic proportional control system in the entrance section of the continuous press was designed by using the design method of the hydraulic proportional control system.The working principle of the synchronous displacement control and pressure control of the system was analyzed.Dividing the control unit based on the intermediate pressure cylinder.The open-loop transfer function of the system was established,and the mathematical model of the unit control system was obtained by parameter design.Taking the production of 12 mm MDF as an example,the stability,response speed,and displacement synchronization performance of the pressure cylinder were simulated and analyzed by MATLAB and AMESim software.The results show that the performance indexes of the hydraulic proportional control system would meet the production demand of the inlet section of the continuous press.

关 键 词：连续式平压热压机 连续压机入口段 液压比例控制系统 

分 类 号：TS642[轻工技术与工程] TP273[自动化与计算机技术—检测技术与自动化装置]