郭辉,高国民,周伟,吕全贵,郝良军.轮式自走方捆打捆机行走速度控制系统设计与试验[J].农业机械学报,2019,50(12):107-114.
GUO Hui,GAO Guomin,ZHOU Wei,LU Quangui,HAO Liangjun.Design and Test of Automatic Control System for Walking Speed of Wheeled Self propelled Square Baler[J].Transactions of the Chinese Society for Agricultural Machinery,2019,50(12):107-114.
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轮式自走方捆打捆机行走速度控制系统设计与试验   [下载全文]
Design and Test of Automatic Control System for Walking Speed of Wheeled Self propelled Square Baler   [Download Pdf][in English]
投稿时间:2019-04-09  
DOI:10.6041/j.issn.1000-1298.2019.12.012
中文关键词:  轮式自走方捆打捆机  行走速度  自动控制  道路试验
基金项目:国家重点研发计划项目(2016YFD0701300)
作者单位
郭辉 新疆农业大学 
高国民 新疆农业大学 
周伟 新疆农业大学 
吕全贵 新疆农业大学 
郝良军 新疆新研牧神科技有限公司 
中文摘要:为解决目前轮式自走方捆打捆机行走速度自动控制问题,设计了一种基于工作负荷反馈的轮式自走方捆打捆机行走速度控制系统。分析了带传动无级变速装置的工作原理和控制特性,进行了控制系统的总体设计与液压回路设计,确定了无级变速装置传动比与油缸伸长量的数学模型。道路增、减负荷试验表明,在设置阈值为0.2km/h、允许偏差为0.1km/h时,最大动态偏差小于5%,最大余差小于1%,速度达到稳定所需调整时间小于5s。该控制系统根据机具模拟负荷自动控制行走速度,可实现自动行走控制与手动行走控制的切换,为轮式自走农业机械通用底盘行走速度的智能调节提供了参考。
GUO Hui  GAO Guomin  ZHOU Wei  LU Quangui  HAO Liangjun
Xinjiang Agricultural University,Xinjiang Agricultural University,Xinjiang Agricultural University,Xinjiang Agricultural University and Xinjiang Machinery Research Institute Ltd., Co
Key Words:wheeled self propelled square baler  walking speed  automatic control  road test
Abstract:Aiming at the problem of automatic control of walking speed of wheeled self propelled square baler, an automatic control system of walking speed of wheeled self propelled square baler based on workload feedback was designed. The working principle and control characteristics of the belt transmission CVT were analyzed. The overall design of the control system and design of hydraulic circuit were completed. The mathematical model of the transmission ratio and cylinder elongation of CVT was established. In order to balance the speed and stability of the vehicle speed adjustment, the control system program was divided into vehicle speed adjustment control and vehicle speed stability control, which ensured that the vehicle speed adjustment control program can achieve the target vehicle speed in a short time; the stability control program was designed to stabilize the speed of the vehicle under subsequent working conditions. For road load increasing and load reducing test, the threshold value was 0.2km/h and the allowable deviation was 0.1km/h. The maximum dynamic deviation was less than 5%, and the maximum residual deviation was less than 1%. It took less than 5s for the speed to reach stability. The control system can automatically control the speed according to the simulated load of the machine, and can realize the switching between the automatic walking control and the manual walking control, which provided a certain reference value for the intelligent adjustment of walking speed of general chassis of wheeled self walking combine harvester.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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