摘要社会发展迅速，道路施工设备也应该变得越来越便捷，才能满足需求。在众多机械设备中，人们常常容易见的压路机就是其中的一种。压路机是属于压实设备，是一种不可缺少的工具，在压实、路面压实方面的技术也在不断更新，但是在国内，静作用压路技术远远比不上国外那么先进，我国的这种技术相对落后，它的操作系统大多都是采用的传统的机械传动，从整体来看，操作起来是非常沉重的，此时，我们必然要利用创新技术，必然要开发全液压压路机来替代传统的压路机。72319

我在利用书上的理论知识对压路机传动系统作了分析之后，又通过一系列数据的计算，终于完成了对YL25型轮胎压路机液压系统的设计。在现有YL25系列压路机的基础上，传动方案的改变，我们可以把原来的机械传动改为液压驱动。整个机床的液压系统有两个部分，包括行走和转向，与机械传动相比，液压传动的轮胎压路机的压实效果、爬坡能力、操作控制和整体布置等更具有优势。采用铰接式液压伺服转向，液压反馈采用液压转向装置，使整机灵活、转弯半径小，轨道重叠，铺层表面质量更好，操作更方便。总的来说，驱动系统采用全液压驱动，它是一个封闭的回路，前轮是用来实现压路机的压实作业，同时，压路机的转向和摆动也是通过前轮来实现，在这里，前轮采用的是机械式摆动式轮胎悬架装置。后轮跟车架刚性连接，由高速电机直接驱动轮侧减速器，减速器壳体与固定悬架连接在车体上。后轮有2个轴向柱塞马达，每一个都是由两轮驱动实现行走和工作。

该论文有图4幅，表8个，参考文献50篇。

毕业论文关键词：轮胎压路机  液压系统  驱动系统  行走转向

The Hydraulic System´s Design of The YL25 Tire Roller 

Abstract Rapid social development, road construction equipment should also become more convenient, to meet demand。 Among the many mechanical devices, it is often easy to see roller is one of them。 Roller compaction equipment belongs, is an indispensable tool, compaction, road compaction aspects of technology are constantly updated, but in the country, the role of the static pressure of the road far less foreign technology so advanced, our this technology is relatively backward, the traditional mechanical transmission most of its operating systems are used, on the whole, the operation is very heavy at this time, we are bound to take advantage of innovative technologies, we will have to develop an alternative to full hydraulic roller traditional roller

I use the book on the theory of the roller drive system is analyzed later, and by calculating a series of data, and finally completed the YL25 type tire roller hydraulic system design。 On the basis of existing YL25 series of rollers on the drive to change the program, we can read the original mechanical transmission hydraulic drive。 The whole machine hydraulic system has two parts, including walking and turning, compared with mechanical transmission, hydraulic transmission compaction effect tire roller, climbing ability, operational control and overall layout and so has more advantages。 Articulated hydraulic servo steering, hydraulic feedback hydraulic steering system make the machine flexible, small turning radius, orbital overlap, overlay better surface quality, more convenient operation。 Overall, the drive system is fully hydraulic drive, it is a closed loop, the front wheel is used to achieve the compaction roller, while the roller steering and swing through the front wheels is achieved, where the front wheel It uses mechanical tire swing suspension device。 With rear frame is rigidly connected by a high speed motor direct drive wheel side reducer, reducer housing fixed suspension connected to the vehicle body。 The rear wheel has two axial piston motors, each of which is realized by a two-wheel drive and walk to work。