机械5

YZ16全液压振动压路机传动系统设计 摘要 振动压路机是利用其自身的重力和振动压实各种建筑和筑路材料。在公路建设中，振动压路机最适宜压实各种非粘性土壤、碎石、碎石混合料以及各种沥青混凝土而被广泛应用。目前国产振动压路机以中小吨位和机械传动方式为主，而性能优良的全液压重型振动压路机主要依赖于进口。之所以出现处于这种状况是由于全液压压路机液压传动系统结构比较复杂并且各类液压元件加工复杂，为彻底改变这种现状本文对现有压路机液压系统进行调研，研制出结构优良的全液压压路机传动系统。 本文在理论分析和计算的基础上，完成了YZ16型振动压路机液压系统的设计，在方案、结构和设计方法上进行了创新：采用全液压的传动方案，通过3个相互独立的液压回路实现行驶、振动和转向三大基本功能，与机械传动相比在压实效果、爬坡能力、质量分配、操作控制和整体布局方面具备更大优势。转向结构采用铰接式车架折腰转向的方案，转弯半径孝机动性好、前后轮迹重迭、重心低、驾驶员视野开阔。同时本文对分动箱的机构进行了详细的设计计算，为缩小分动箱的体积本次采用齿面硬度达60HRC的齿轮和双列滚柱轴承的结构。 关键词：振动压路机；设计；液压系统；分动箱 Abstract Vibratory roller is to use its ow
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nsfer case 目录 摘要1 Abstract 2 第一章绪论5 1.1压路机的定义5 1.2课题研究的目的和意义5 1.3国内压实机械和压实技术概况6 1.4国外压实机械和压实技术现状7 第二章传动系统总体结构设计9 第三章液压系统设计10 3.1行走液压系统的设计10 3.1.1全轮驱动液压压路机的优点10 3.1.2全轮驱动液压压路机的缺点11 3.2振动液压系统设计11 3.2.1开式液压震动系统11 3.2.2闭式液压振动系统12 3.2.3工作装置液压振动系统形式的选用13 3.3转向液压系统设计13 3.4液压系统原理图16 第四章液压系统计算与选型17 4.1液压系统17 4.1.1行走液压系统17 4.1.2振动液压系统17 4.1.3转向液压系统18 4.2各液压系统所需功率计算18 4.2.1行驶液压系统所需功率计算18 4.2.2转向液压系统所需功率计算19 4.2.3振动液压系统所需功率计算19 4.3主要液压元件计算选型20 4.3.1行驶液压系统20 4.3.2振动液压系统21 4.3.3转向液压系统22 第五章分动箱设计25 5.1分动箱结构设计25 5.2分动箱设计计算25 5.2.1动力参数计算25 5.2.2行驶级齿轮传动设计26 5.2.3转向-振动级齿轮传动设计28 5.2.4输入轴的设计29 5.2.5输出轴1的设计30 5.2.6输出轴2的设计30 5.2.7轴强度的校核31 第六章传动系统的保养与维修32 6.1传动系统保养32 6.2传动系统的维修33 6.2.1常见故障排除33 结论36 参考文献37 致谢38