Tractor Monitoring of Sweet Corn and Dent Corn Harvester

甜玉米和凹陷玉米收获的拖拉机监测1.甜玉米田的采摘需要功率为6~9马力，凹陷玉米地的功率要求为8~10马力。对于配备0.7~1.0吨玉米料斗的机器，需要一台70马力的拖拉机进行田间作业。凹陷玉米的田间穗部损失小于1%。爆破板对甜玉米籽粒的损伤很小。2)录像机图像观察。爆破辊的周向速度设定为3.0m/S，玉米秸秆在不到0.5秒的瞬间就能粉碎到地面。3)脱壳试验在1.4~1.8千克/米的压力下，螺旋胶辊对甜玉米的脱壳扭矩为0.4~1.5千克/米。脱壳辊的圆周速度为0.9~1.3m/S，对于凹陷玉米，合适的钢胶辊组合速度为300~450rpm。4)玉米采摘机的拖拉机监测新开发的拖拉机监测系统配备了几个传感器来测量工作条件：秸秆传感器、高度传感器、多普勒雷达传感器和料斗液位传感器。这些传感器在垃圾条件下表现出良好的性能。

Tractor Monitoring of Sweet Corn and Dent Corn Harvester1) Power Requirement of Corn PickerPower tequirement at the sweet corn field was 6to9hp and 8to10hp at the dent corn field. For the machine equipped with corn hopper of 0.7to1.0 ton, a 70hp class tractor was requested to conduct the field practice. Field ear loss was lesser then 1%for dent corn. There was very few grain damage of sweetcorn by the use of snapping plates.2) Observation by VTR picturePeripheral speed of a snapping roll was set at 3.0m/s. Corn stalks were able to be shattered to the ground at the moment less than 0.5 sec. At the end of harvest season, grain damage was increasing by a snapping operation.3) Husking TestHusking torque of sweet corn by a helical rubber roll was 0.4 to 1.5 kgf-m at the dracts of 1.4 to 1.8. Peripheral speed of husking roll was 0.9 to 1.3m/s. Proper speed of a steel and rubber roll combination was recognized as 300 to 450 rpm for dent corn. Husking resistance of a dent corn was almost one third of a sweet corn.4) Tractor Monitoring of Corn PickerA newly developed tractor monitoring system was equipped to measure the operating conditions by the use of several sensors as follows : the stalk sensor, the height sencor, Doppler radar sensor and hopper level sensor. These sensors showed good performance at trashy field conditions.