农业机械学报2024，Vol.55Issue(2)：90-100,11.DOI:10.6041/j.issn.1000-1298.2024.02.008
俯仰式播种单体仿形性能检测试验台设计与试验
Design and Test of Pitching Seeding Unit Profiling Performance Testing Bench
摘要
Abstract
In order to solve the problem that it is difficult to test the performance of seeding unit profiling mechanism,a pitching seeding unit profiling performance testing bench was designed.The composition and working principle of the test bench were described,and the high-speed transmission system,hydraulic lifting system,monitoring system and key components were designed.ANSYS Workbench was applied to carry out static analysis and modal analysis on the whole test stand and key components to verify the reasonableness of the structural design.In order to test the actual testing effect of the pitching seeding unit profiling performance testing bench,taking the seeding unit of Debont 1205 tractor-type no-till precision planter as the research object,the first test was carried out with the hydraulic rod extension and conveyor belt speed as the test factors,and with the error of the monitoring system as the evaluation indexes.After confirming the accuracy of the monitoring system,the maximum error of angle sensor of the monitoring system was 0.69 mm within the range of hydraulic rod extension of 0～200 mm,and the maximum error of the photoelectric encoder was 0.18 km/h within the range of conveyor belt speed of 8～19 km/h.After confirming the accuracy of the monitoring system,taking the speed of the monocoque as the test factor,the data of the land's undulation curve was collected at speeds of 8 km/h,10 km/h and 12 km/h for the objective of the test curve,the absolute error average of the terrain undulation simulation curve as an indicator of the single-factor test,the test concluded that the designed test bench can effectively simulate the field ground undulation frequency and the amount of undulation,the absolute error average value was 1.86 mm,which can meet the needs of seeding monomer profiling performance testing.关键词
高速播种机/仿形机构/试验台架/农田地形/液压系统Key words
high speed seeder/profiling mechanism/test bench/farmland topography/hydraulic system分类
农业科技引用本文复制引用
衣淑娟,李怡凯,陈继国,王淞,赵斌..俯仰式播种单体仿形性能检测试验台设计与试验[J].农业机械学报,2024,55(2):90-100,11.基金项目
黑龙江省重点研发计划重大项目(2022ZX05B02-02)和黑龙江省"百千万"工程科技重大专项支撑行动计划项目(2020ZX17B01-3) （2022ZX05B02-02）
