我国玉米收获机械发展现状

Present Development of China's Maize Harvesters

针对国外玉米收获机不适合我国高含水率玉米收获的情况,详细介绍我国玉米联合收获机械的类型及研制现状,分析单行、背负式、牵引式、多行自走式、穗茎兼收型和不对行玉米收获机的特点,总结目前市场上常见的4YW-Q型、4YZ-4型、4YB-4型、4YW-2型和4YW-2(3)型玉米收获机的技术参数及性能,旨在为玉米收获机的选购及研制提供参考。

Foreign-made maize harvesters are unfit for collecting China＇s maize of high moisture. This article deals with the categories and present research of China’s maize harvester. Characters of such harvesters as single line-backpack type, pull-type, multiline-selfpropelled, mixed collection of spike and stem type are summarized. The technical parameters and performance of such harvesters as 4YW-Q type.4YZ-4 type,4YB-4 type,4YW-2 type, and 4YW-2（3）type are presented so as to provide reference for farmers’ selection and for further research.