两行玉米收获机割台设计与试验

Design and Experiment of Two-row Corn Harvester Header

设计了两行玉米收获机割台的总体结构,理论分析了割台关键部件结构参数和运动参数,根据设计参数利用Pro/E建立了割台的三维模型。通过室内试验台测试了割台在不同转速下消耗的功率和噪声水平。试验结果表明,该割台在空转时消耗的功率偏大,噪声水平偏高。更换不同设计参数的拨禾链轮进行对比,试验表明在低转速下消耗的功率减小但在高速下消耗的功率增大。

In order to reduce the consumption power and improve the working performance when corn snapping unit is working,the overall structure of corn snapping unit was designed,then the key structure and kinematic parameters were analyzed in theory.After that,the 3-D model of corn snapping unit was established by using Pro/E according to the design parameters.Finally,the power and noise level were tested at the different rotate speeds in testing bed.The results showed that the consumption power and noise level were too high when this corn snapping roll was working without load.After changing the finger rotor,the consumption power rose at low speed and dropped at high speed in contrast to before changing.