履带车辆双功率流转向装置的液压系统及操纵系统设计(有cad图).docxVIP

履带车辆双功率流转向装置的液压系统及操纵系统设计 摘 要 机械液压双功率流转向系统是履带车辆的一种新型转向方式，也就是发动机功率在变速箱的输入轴上分流，一路功率流向变速箱，一路功率流向由变量泵、定量马达及其他控制元件组成的液压转向调速系统。此种转向机构具有转向时平均速度不降低，转向工作效率高，左右履带的速度差能够无级调节，可实现由方向盘操纵进行精确的方向控制，机动性好等许多优点。有效的改善了履带车辆的转向性能。此系统设计的关键就是实现双功率流履带 车辆的平稳转向。故本文在参考东方红 1302R 橡胶履带拖拉机的一些参数的情况下，着重介绍了机械液压双功率流转向系统的液压系统及转向操纵系统 的设计方案和工作原理，对液压系统中液压元件，如变量泵、定量马达等进行了设计计算，并合理的选取了系统中所需的液压元件，并使各元件间匹配合理，使其达到最佳的工作状态。同时对设计的液压系统和操纵系统进行了转向性能的初步计算，其结果表明此种设计方案参数匹配合理，能较好的满足履带车辆的转向要求。 关键词： 履带车辆，双功率流，液压系统，操纵系统，转向机构 1 / 29 DESIGNING STEERING CONTROL HYDRAULIC SYSTEM OF DOUBLE POWER FLOW TRACKED VEHICLE ABSTRACT Mech-hydraulic double power flow steering is a new technique for tracked vehicles turning systems, This is engine power is broken down in the gearbox input shaft.A part of power flows to gearbox, the other part of power flows to variable pumps, motors and other control components of hydraulic steering regulate speed system . Such turning mechanical have the average speed is not reduced and high efficiency when vehicle.Tracked about the speed difference can be no class regulation, by the steering wheel can be manipulated to achieve accurate direction control, good mobility and many other advantages. An improvement of the tracked vehicle to the performance. The system design is the key to achieving double-tracked vehicle power flow in a smooth shift. It is in reference to the DongFangHong-1302 R rubber tracked tractor some of the parameters of the circumstances, focus on the mechanical-hydraulic power transfer to the system of hydraulic systems and steering control system design and the working principle, for hydraulic components of hydraulic system, such as variable pump, quantitative motors for the design, and the selection of a reasonable system of hydraulic components, to make a reasonable match between components. to enable it to achieve the best working conditions. Meanwhile in the design of hydraulic systems and manipulation of the system performance to the preliminary calculation, T