预破土组合振动深松铲的设计与试验  

Design and Test of Combined Vibration Subsoiler with Pre-ripper

作　　者：罗斌 孔羿勋 杨丹彤[3] 张祺睿 邓敏 郑丁科[3] Luo Bin;Kong Yixun;Yang Dantong;Zhang Qirui;Deng Min;Zheng Dingke(Guangzhou Panyu District Agricultural Technology Extension Service Station,Guangzhou 511400,China;CRCC Hightech Equipment Corporation Ltd.,Kunming 650215,China;Key Laboratory of Key Technology on Agricultural Machine and Equipment,Ministry of Education,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]广州市番禺区农业技术推广服务站,广东广州511400 [2]中国铁建高新装备股份有限公司,云南昆明650215 [3]华南农业大学南方农业机械与装备关键技术省部共建教育部重点实验室,广东广州510642

出　　处：《现代农业装备》2021年第2期34-37,50,共5页Modern Agricultural Equipment

基　　金：国家糖料产业体系岗位专家项目(CARS-170404)。

摘　　要：为了避免在深松铲铲柄上开破土刃口而降低深松铲的强度,本文将破土刃口与铲柄分离开进行独立设计,形成内弧半径为150 mm的专有弧形破土器,承担对土壤的切割作用,减轻深松作业阻力。本文通过田间试验验证了预破土器对深松减阻的效果,确定了预破土器的最佳安装位置,试验结果表明,在振幅5 mm、振频10 Hz、前进速度1.44 km/h、耕深约为500 mm时,预破土组合深松铲比无破土器深松铲的耕作阻力减小12.46%~22.87%,平均减小18.48%,减阻效果明显。预破土器的安装位置需要根据深松深度的要求确定,在本试验的深松深度条件下,3号位置的减阻效果最好。此研究为研制结构简单、减阻高效的深松机具设备提供了理论依据。In order to avoid cutting edge on the handle of subsoiler and reducing its strength,the soil breaking edge is separated from the shovel handle for independent design,and a special arc-shaped soil pre-ripper with inner arc radius of 150 mm is formed to cut the soil and reduce the resistance of subsoiling operation.In this paper,the effect of soil pre-ripper on drag reduction is verified by field test,and the best installation position of the pre-ripper on subsoiler is determined.The experimental results show that,when the amplitude is 5 mm,the vibration frequency is 10 Hz,the forward speed is 1.44 km/h,and the tillage depth is about 500 mm,the tillage resistance of the combined subsoiling shovel with pre-ripper can be reduced by 12.46%~22.87%,with an average reduction of 18.48%,and the drag reduction effect is obvious.The best installation position of the soil pre-ripper is determined according to the subsoiling depth,under the condition of subsoiling depth in this paper,the drag reduction effect of position No.3 is the best.This study provides a theoretical basis for the development of subsoiling machines and equipment with simple structure and high drag reduction efficiency.

关 键 词：土壤深松 振动深松 预破土 组合深松铲 

分 类 号：S233.1[农业科学—农业机械化工程]