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1、本科机械毕业设计论文 CAD 图纸 QQ 401339828 I图书分类号：密 级：摘要本课题是设计一个液力传动变速箱，液力传动变速箱是汽车中的驱动设备，广泛的应用于叉车、牵引车、挖掘车等工业车辆中。随着人们对液力传动的性能及其优越性认识的逐渐深入，液力传动装置的应用也越来越广泛。根据本次设计的的要求，本论文是一个驱动 60 吨的液力传动变速箱设计过程。液力传动变速箱主要由变速箱、液力变矩器、油泵总成与主调压阀和溢流阀组件、操纵阀组件、离合器和液压控制等部分组成。由液力变矩器提供转矩和具有前进二档、后退二档共四个档位的动力换档变速箱。液力变矩器使该液力传动变速箱具有液力传动输出的自动适应性，能
2、随着外负载的变化而相应改变其输出扭矩和转速，而且要求能够吸收和消除来自发动机和外负载对传动系统的冲击振动。所采用的换档方式要求操纵简单、方便，起动平稳，较大地减轻操作者劳动强度。本课题通过液力传动变速箱主要参数的设计，用三维设计软件 UG 来实现液力传动变速箱的零部件造型和整机造型。在液力传动变速箱设计过程中，在投入生产之前利用计算机进行装配仿真，及时纠正设计中的不足。关键词关键词 液力传动变速箱；液力变矩器；离合器；操纵阀本科机械毕业设计论文 CAD 图纸 QQ 401339828 IIAbstractThis topic is to a design a hydraulic Transmi
3、ssion Gearbox, hydraulic transmission gearbox is in a vehicle equipments, widely used in forklift trucks, tractors, mining trucks and other industrial vehicles. As people drive on the hydraulic performance and advantages of the gradually deepening understanding, application of the hydraulic transmis
4、sion is also more extensive. According to the requirements of this design, this thesis is a drive of 60 tons of hydraulic power transmission design process. Mainly by the transmission hydraulic transmission gearbox, torque converter, oil pump assembly with the main pressure regulating valve and pres
5、sure relief valve components, control valve components, clutch and hydraulic control components. Provided by the hydraulic torque converter and a forward second gear, second gear back a total of four stalls in the power shift transmission. So that the hydraulic torque converter transmission with hyd
6、raulic transmission output gear automatic adaptation to changes in external load with corresponding changes in its output torque and speed, but also requires the ability to absorb and remove from the engine and the outer load on the transmission of shock and vibration. The approach requires control
7、gear used in simple, easy, smooth start, more to reduce the labor intensity of operators.The subject of the main parameters of transmission through the hydraulic transmission design, which uses the three-dimensional design software to achieve hydraulic transmission gearbox UG parts modeling and mach
8、ine modeling. In the hydraulic drive transmission design process into production before the assembly by computer simulation, and promptly correct design deficiencies. Keywords Hydraulic Transmission Gearbox Torque Converter Clucth Control Valve本科机械毕业设计论文 CAD 图纸 QQ 401339828 I目目 录录1 绪论.11.1 引言.11.2 国内外研究现状.11.3 研究的目的和意义.11.4 本课题的主要研究内容.22 总体方案的设计.32.1 主要技术参数和工作原理.32.2 结构介绍.33 变速箱的设计.63.1 变速箱传动方案的设计.63.2 前进挡设计.73.2.1 前进挡挡数的确定.73.2.2 前进挡齿轮的设计.73.3 变速箱齿轮主要参数的计算和强度校核.73.3.1 齿轮参数计算.73.3.2 齿轮强度校核.103.4 轴与轴承的设计与校核.173.5 变速箱的总装配图.234 液力变矩器的设计.244.1 引言.244.2 液力变矩器的结构与工作原理.
