便携式采茶机切割器运动仿真与试验  

Simulation and Experiment of Reciprocating Cutter Kinematic of Portable Tea Picking Machine

作　　者：杜哲[1] 胡永光[1] 王升[1] 

机构地区：[1]江苏大学农业装备工程学院,镇江212013

出　　处：《农业机械学报》2018年第S1期221-226,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：江苏省六大人才高峰项目(2015-ZBZZ-021);江苏高校优势学科建设工程项目(2014-37)

摘　　要：利用ADAMS软件对双动割刀往复式切割器进行运动仿真研究,依据仿真结果,应用响应面法对一次切割率、重割率和漏割率进行分析,确定齿距20 mm、齿高19 mm、刀机速比1. 05为最优组合。此时,一次切割率、重割率和漏割率分别为76. 45%、21. 34%和2. 50%。利用双动割刀往复式切割器进行田间试验,并与仿真结果进行对比分析。结果表明,一次切割率实测值与模拟值绝对误差小于6%,漏割率实测值与模拟值绝对误差小于2%。此方法可为便携式采茶机切割器的参数优化提供理论依据。Tea picking is one of the important links to tea production process,and the cutter is an important part of picking device. In order to reliably measure the primary cutting rate,repeated cutting rate and leakage rate of reciprocating cutter of portable tea picking machine,the reciprocating cutter was taken as an object of simulation and experiment. The kinematics simulation of cutter was studied by using ADAMS,and an experimental analysis of the primary cutting rate,repeated cutting rate and leakage rate was made by using response surface methodology based on simulation data. The results showed that the optimal combination of tooth pitch,tooth depth and cutting speed index were 20 mm,18. 61 mm and1. 05,respectively. For ease of processing,tooth pitch,tooth depth and cutting speed index were chosen to be 20 mm,19 mm and 1. 05,respectively. At this time,the values of primary cutting rate,repeated cutting rate and leakage rate were 76. 45%,21. 34% and 2. 50%,respectively. The results of the experimental research on the developed double-acting blade reciprocating cutter were compared with simulation data. The results showed that the range of leakage rate and primary cutting rate were 0. 79% ~3. 64% and 70. 55% ~ 79. 90% when the tooth pitch,tooth depth and cutting speed index were 20 mm,19 mm and 1. 05,respectively. While the error of leakage rate and primary cutting rate between the simulation and experimental data were 2% and 6%,respectively. The method provided a theoretical basis for optimizing the parameters of portable tea picking machine.

关 键 词：切割器 便携式采茶机 运动仿真 试验 

分 类 号：S225.99[农业科学—农业机械化工程]