The utility model discloses a novel corn cutting table which comprises a corn ear picking table and a stalk cutting and feeding device, wherein, the corn ear picking table is provided with a corn ear picking device and a corn ear transmitting device that are fixedly connected, the stalk cutting and feeding device is provided with a stalk cutting device and a stalk feeding device that are fixedly connected, the corn ear picking table and the stalk cutting and feeding device are respectively articulated in front of a corn harvester body, and a cutting table rotating device that can drive the corn cutting table to rotatablely lift and drop is arranged between the stalk and feeding device and the machine body; a cutting table transfer device that can drive the corn ear picking table to rotatablely lift and drop is arranged between the corn ear picking table and the stalk cutting and feeding device. The novel corn cutting table can simultaneously realize the corn ear picking and the stalk cutting operations, in addition, the structure is compact, the corn ear picking and the stalk cutting operations can be respectively controlled, and the operation, the installation and the maintenance are convenient.
A new control strategy was presented which combined the advantage of the electric power assist control strategy and the real-time optimization control strategy. Based on the new control strategy and the configuration and performance requirement of the hybrid tow tractor, the logic control system was designed which had five states and 20 transitional phases, the actual relationship between ICE and electric motor on light-duty was extracted from the testing data, at the same time the distribution of torque was optimized in real-time with PD controlling method. The testing results showed that the control system achieved the control objectives which were expected and transferred power smoothly under state-switch.
<正> 从2005年全国自主出口品牌建设工作会议上获悉,虽然我国已成为世界第3大贸易国,但在2005年度"世界品牌500强"中,中国只有4个。目前我国有170多类产品的产量居世界第一位,但却少有世界水平的品牌,是典型的"制造大国,品牌小国"。进入世界500强,是一种荣誉,也是世界对企业经济实力和
改革开放以来,随着我国农业机械化水平的迅速提高,联合收割机的使用越来越普遍,特别是作为一种致富的工具,越来越受到用户的重视和欢迎.而广大用户在使用联合收割机过程中时常反映"跑粮"问题,针对这个问题,多年来,我们不断深入收获现场,联系实际,和用户一起分析研究、解决问题.同时,我们又从理论分析到模拟试验,再到田间试验.经过长期对问题的分析、研究和探讨,有以下几方面的认识,仅供参考.
