| 立轴柱形变螺距螺旋开沟机临界转速分析 |
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| 引用本文： | 李平,蒋恩臣,丁乔.立轴柱形变螺距螺旋开沟机临界转速分析[J].农机化研究,2005(1):129-130,133. |
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| 作者姓名： | 李平 蒋恩臣 丁乔 |
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| 作者单位： | 1. 塔里木农垦大学,新疆,阿拉尔,843300
2. 东北农业大学,黑龙江,哈尔滨,150030 |
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| 摘 要： | 通过对螺旋开沟机所输土块的运动及受力情况进行分析可知：当土块与坑壁之间的摩擦力能阻止土块随叶片旋转时，土块在螺旋叶片上所受作用力相互平衡。由此，推导山立轴柱形变螺距螺旋开沟机的临界转速。此即为保证土壤在螺旋而上上升的基本条件，而实际转速则大于临界转速。该分析为进一步设计立轴柱形变螺距螺旋开沟机提供了依据。
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| 关 键 词： | 开沟机 土块 土壤 螺旋叶片 运动 平衡 旋转 变螺距 坑壁 形变 |
| 文章编号： | 1003-188X(2005)01-0129-02 |
A discussion on the critical speed of the upright cylinder helix ditching machine of the variable pitch |
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| LI Ping,JIANG En-chen,DING Qiao.A discussion on the critical speed of the upright cylinder helix ditching machine of the variable pitch[J].Journal of Agricultural Mechanization Research,2005(1):129-130,133. |
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| Authors: | LI Ping JIANG En-chen DING Qiao |
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| Abstract: | By analyzing of the motion and received-forces conditions of a soil unit body on the spiral of the helix ditching machine during soil lifting, When the friction between the soil and the side of hole can stop the rotation of a soil unit body together with helix blade, The receive-forces of the soil is balance each other. Thus, Calculating the critical rotational speed of the helix ditching machine. It is a basic condition that can guaranteed the soil moving upward on the helix surface. The actual rotational speed is bigger than it. The analyzing supplies a foundation for the further design. |
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| Keywords: | agricultural engineering helix ditching machine analysis cylinder variable pitch critical speed |
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