【摘要】 为进一步提高超级稻有序排列播种精度,对振动式排种器振动板的横向振动特性进行了研究。首先阐述了振动式排种器的工作原理,建立了振动板横向振动的力学模型,并对稻种在振动板上的跃起运动进行分析;再利用振动测试采集仪等设备对振动板进行振动测试,分析了激振频率、振动板角对振动板横向振动的影响,得到板面的横向振动规律,提出了排种器振动板上导向板布置的区域为:400mm×300mm;再连接V型槽输送已定向排序稻种的设计方案。试验结果表明,在激振频率为4.5Hz、振幅为3.5mm、振动板倾角为10°、导向板曲率为2.65时,该设计方案可以有效避免稻种的跃起,实现均匀有序播种,满足超级稻有序、连续播种的要求。更多还原

【Abstract】 The transverse vibration feature of the vibrating plate of vibrating-type seed metering device is studied with a view to further improve the seeding accuracy in an ordered arrangement of super hybrid rice.The design scheme is as follows.Firstly,the operational principle of vibrating type seed metering device is stated,a mechanical model of transverse vibration of vibrating plate is built,and analysis on the leaping movement of rice seed on vibrating plate is made;then vibration test of vibrating plate is made with vibration test acquisition instrument and other equipment,the effect of excitation frequency and the angle of vibrating plate on transverse vibration of vibrating plate is analyzed,and the laws of transverse vibration of plate are drawn,and it is pointed out that the area for arranging guide plate on vibrating plate of seed metering device is:400×300mm;a V-shaped trough is connected for conveying rice seeds that have been arranged in a certain direction.Experimental results show that when excitation frequency is 4.5 Hz,amplitude is 3.5mm,the inclination of vibrating plate is 10°,and the curvature of guide plate is 2.65,implementing the design scheme can effectively prevent rice seed from leaping,realize uniformly and orderly seeding,and meet the requirements for ordered and continuous seeding of super hybrid rice.更多还原