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首页> 外文期刊>農業機械學刊 >ANALYSIS OF MECHANISM DESIGN FOR MOTION PERFORMANCE OF THE SWING NOZZLE LINKAGE - CRANK CENTER LOCATED ON THE MOTION LINE OF SLIDER
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ANALYSIS OF MECHANISM DESIGN FOR MOTION PERFORMANCE OF THE SWING NOZZLE LINKAGE - CRANK CENTER LOCATED ON THE MOTION LINE OF SLIDER

机译：滑动机构摆线摆动喷嘴连杆-曲轴中心运动性能的机理设计分析。

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摘要

The self-propelled spraying equipment with swing nozzle carrier, which simulates the operator handle spraying gun, would improve the spraying deposition of particles on the back leaves in a pesticide application. This study analyzes the displacement, velocity and acceleration of a crank - slider linkage for swing nozzles. Mechanism analysis using Matlab program could evaluate the motion trajectories precisely, and found that the displacements of slider r{sub}3 at upper and lower stroke was unequal, which could not be obtained by drawing manually. The nozzle lever r{sub}4 keeps horizontal when the crank rotates from its initial position, P{sub}y must be fixed above the middle of moving path of point D. Then, the tilt-up and tilt-down ranges of the nozzle lever r{sub}4 were not symmetrical. The maximum linear velocities of slider r{sub}3 occurs both at θ{sub}1 more than 180° and less than 360°, where the time A{sub}c was zero. When P{sub}y was fixed in the middle of moving path of point D, the nozzle lever r{sub}4 will keep in the tilt-down position when the crank stays at the initial position, the tilt-up and tilt-down ranges of nozzle lever r{sub}4 were symmetrical. So, the factors that affect the tilt range of r{sub}4 were the position of P relative to D, or, the length of r{sub}1 and r{sub}2. Analysis of mechanism design combined with programming could obtain design data quickly when the linkage parameters changed reasonably.
机译：具有摇摆式喷嘴架的自走式喷涂设备，可模拟操作员手柄喷枪，在农药应用中，可改善颗粒在后叶上的喷涂沉积。这项研究分析了摆式喷嘴曲柄-滑块联动装置的位移，速度和加速度。使用Matlab程序进行的机构分析可以精确地评估运动轨迹，发现滑块r {sub} 3在上下行程处的位移是不相等的，这是无法通过手动绘制获得的。当曲柄从其初始位置旋转时，喷嘴杆r {sub} 4保持水平，必须将P {sub} y固定在点D的移动路径中间。然后，喷嘴杆r {sub} 4不对称。滑块r {sub} 3的最大线速度在θ{sub} 1大于180°且小于360°时出现，其中时间A {sub} c为零。当P {sub} y固定在D点的移动路径中间时，当曲柄停留在初始位置时，喷嘴杆r {sub} 4将保持在向下倾斜位置，向上倾斜和向下倾斜喷嘴杆r {sub} 4的向下范围是对称的。因此，影响r {sub} 4倾斜范围的因素是P相对于D的位置，或r {sub} 1和r {sub} 2的长度。当连杆参数合理变化时，机构设计分析与程序设计相结合可以快速获得设计数据。

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