茶叶揉捻压力检测装置设计与试验  

Design and experiment of the measuring device for the twisting pressure of tea twisting equipment

作　　者：张俊 郑乐 张富贵[1,2] 胡正军 黄海松 闫建伟[1,2] Zhang Jun;Zheng Le;Zhang Fugui;Hu Zhengjun;Huang Haisong;Yan Jianwei(College of Mechanical Engineering,Guizhou University,Guiyang,550025,China;Key Laboratory of Modern Manufacturing Technology,Ministry of Education,Guiyang,550025,China;Guizhou Jinsanye Mechanical Manufacturing Limited Company,Bijie,551800,China)

机构地区：[1]贵州大学机械工程学院,贵阳市550025 [2]现代制造技术教育部重点实验室,贵阳市550025 [3]贵州金三叶机械制造有限公司,贵州毕节551800

出　　处：《中国农机化学报》2024年第7期114-121,共8页Journal of Chinese Agricultural Mechanization

基　　金：国家重点研发计划项目(2021YFD1100307);贵州省山地智能农业装备研发与应用科技创新人才团队项目(黔科合平台人才[2019]5616号)。

摘　　要：茶叶揉捻压力是影响茶叶揉捻品质的重要因素,对茶叶揉捻压力开展实时检测,是实现茶叶自动化加工的关键。在分析揉捻加压相关部件的受力情况与揉捻作用区域的分布基础上,运用SW-DAMS耦合仿真方法分析不同揉捻压力检测方法对应的感知传感器接触力学特性与作用力变化情况,对比优化出揉捻压力最佳检测点位于揉盖上端。确定压力传感器结构及量程,设计揉捻压力检测装置,完成压力校准及检测试验。结果表明:揉捻标准转速为45 r/min时,选用的环形压力感知传感器内部直径为32 mm、高度为20 mm,连接法兰高度为40 mm,压力输出精度达到0.1%,无超调现象;样机的生产率为65 kg/h,碎茶率为1%,动态压力数值随揉捻过程在3~35 N之间实时变化,能够满足自动化茶叶生产线对揉捻压力的检测要求。Tea rolling pressure is an important factor that affects the quality of tea rolling.Real-time detection of tea rolling pressure is the key to realize automatic tea processing.In this paper,based on the analysis of the force situation of the related components of the rolling pressure and the distribution of the rolling action area,the SW-DAMS coupling simulation method was used to analyze the contact mechanical characteristics and force changes of the sensing sensors corresponding to different rolling pressure detection methods,and the best detection point of the rolling pressure was located at the upper end of the gland.At the same time,the structure and measuring range of the pressure sensor were determined,and the rolling pressure detection device was designed to complete the pressure calibration and detection test.The results showed that when the standard rolling speed was 45 r/min,the selected annular pressure sensing sensor had an internal diameter of 32 mm,a height of 20 mm,connecting flange height 40 mm,a pressure output accuracy of 0.1%,and no overshoot.The productivity of the prototype was 65 kg/h,and the broken tea rate was 1%.The dynamic pressure changed in real time between 3-35 N with the rolling process,which could meet the requirements of automatic tea production line for testing the rolling pressure.

关 键 词：茶叶揉捻机 揉捻压力 压力检测 运动仿真 

分 类 号：S225.29[农业科学—农业机械化工程]