摘要
提出带式输送机离散化原理,分析胶带离散单元和重锤受力关系,建立基于AMESim的制动系统以及输送机整体模型,对其制动过程进行了数值计算。研制了一台带速测试装置,现场测试了一条输送机的速度曲线,经比较仿真及实测的停车总时间误差为0.9%、平均加速度误差为10.2%。基于上述模型,对另一条长距离大型带式输送机在电动停机过程、断电自然停机过程两种制动方式下的速度、制动力矩以及重锤位移等动态参数进行了数值分析。
The paper puts forward the discretization theory of the belt conveyer,analyzes the relation between the belt discrete unit and the force on the heavy-hammer,introduces the AMESim-based braking system and conveyer model,and performs numerical calculation for the braking process. The paper develops a belt speed testing device and tests the speed curve of a conveyor on site. Through comparison,the error between the stimulated and measured total shutdown time is0. 9%,and the average acceleration error is 10. 2%. Based on the above model,the numerical analysis is performed on the speed,braking moment,and heavy-hammer displacement and other dynamic parameters under two braking conditions including power-driven shutdown and outage shutdown of another long-distance large-scale belt conveyer.
出处
《起重运输机械》
2015年第6期92-95,共4页
Hoisting and Conveying Machinery
