539 352履带拖拉机－单级最终传动装置设计（全套CAD图+说明书+翻译）
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上传时间：2016-10-10
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- 关 键 词：
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履带
拖拉机
最终传动
装置
设计
cad
原图
中英文
翻译
- 资源描述：
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终传动装置设计
摘要
履带式拖拉机能够正常行驶，拖拉机驱动轮需要足够的驱动力。这就需要一套能够增加传动系的传动比的专署机构。它将进一步降低驱动轮转速，从而提高驱动轮的转矩，这就是所谓的最终传动。同时履带式拖拉机的最终传动还用来提高后桥的离地间隙。所以最终传动要有适当的传动比；保证后桥处有足够的离地间隙；齿轮要具有较高的支承刚度；靠近驱动轮布置的最终传动尤其要有可靠的密封。
外置式外啮合圆柱齿轮最终传动，使最终传动成为一个独立部件，便于拆装和维修。这种结构的主、从动齿轮在壳体内的支持可以布置成简支梁式，对提高支撑刚度有利。主动轮的啮合条件降低了轮齿上的载荷，提高了承载能力，但结构复杂。
最终传动的传动比较大，齿轮和轴受载严重，径向尺寸受到轮辋尺寸和离地间隙的限制而不能太大。为了在结构紧凑的情况下，保证齿轮有足够的强度，外啮合圆锥齿轮的最终传动常常采用较大的齿宽和较少的齿数。为了保持齿轮的良好啮合，必须保证两齿轮轴中心线的平行度。
关键词：主动齿轮，最终传动，直齿，保护板
- 内容简介：
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