摘要
分析无卡轴旋切机的工作原理,推导了旋切过程中刀刃进给速度与圆木直径的数学模型,并推导出液压系统流量计算公式,从而得出旋切过程中液压缸的流量必须随刀刃进给速度按一定规律变化,以保证旋切机正常工作的结论。根据变速进给模型,设计了无卡轴旋切机的液压系统;建立了闭环控制系统的数学模型,并验证了控制系统的稳定性。使用新型液压系统后,无卡轴旋切机的寿命提高,系统的能耗降低、噪声减小,且易操作。
Working principle of log-core veneer lathe was analyzed in detail. The mathematical model between the tool feeding speed and the diameter of the log core was established and the formula of hydraulic cylinder flow was deduced. From these, a conclusion that the flow of hydraulic cylinder must be changed with the feeding speed according to a certain rule can be gained, which can be used to make the lathe work well. By the variable-speed feeding model, the hydraulic system was designed. The mathematical model of the closed loop control system was established and its stability was verified. Using the new hydraulic system, the lifetime of the log-core veneer lathe is longer, the energy consumption is reduced, the noises are lower, and the operation is more easy.
出处
《机床与液压》
北大核心
2011年第20期65-68,共4页
Machine Tool & Hydraulics
关键词
无卡轴旋切机
数学模型
液压系统
流量控制
控制系统
Log-core veneer lathe
Mathematical model
Hydraulic system
Flow control
Control system
