机械单驱与全液压双驱单钢轮振动压路机的性能对比

发布时间：2018-01-12 11:18

本文关键词：机械单驱与全液压双驱单钢轮振动压路机的性能对比　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：单钢轮振动压路机在公路施工中是不可或缺的压实设备，主要用于基层、底基层及填方的压实作业。实践经验表明，基层压实度每提高1%，基础承载能力便可提高10%。由此可见底基层、基层及填方的压实度对公路的承载能力及使用寿命有着非常重要的作用。单钢轮振动压路机有两种驱动方式，，机械单驱与全液压双驱的性能对比分析研究可以为公路施工中单钢轮振动压路机的选用与使用提供参考。本文首先根据国内某两个厂家的单钢轮振动压路机的性能参数，计算分析确定了当量压实能力相当的对比机型：26吨机械单驱式与20吨全液压双驱式单钢轮振动压路机，为了准确的对比两台样机的压实作业性能及牵引爬坡性能，对其相关的主要性能参数进行了试验测试分析。然后通过理论分析与试验研究相结合的方法对两台样机的压实作业性能及牵引爬坡性能进行了对比分析研究。在压实作业性能对比中，首先介绍了土壤的振动压实机理及与压实相关的物理性能参数，其次理论分析了单钢轮振动压路机质量参数、振动参数、驱动方式及压实作业速度对其压实作业质量的影响并通过击实试验确定了试验土壤的最佳含水量与最大干密度，最后试验研究分析了两台样机以最佳工况对相同试验土壤进行压实作业后土壤压实度、压实度均匀性、表面平整度的对比情况。在牵引爬坡性能对比中，首先介绍了全液压双驱式单钢轮振动压路机前后轮的动力分配情况并对其驱动轮动力半径进行了标定，其次对两台样机由最大驱动力、最大附着力及坡道稳定性所决定的爬坡性能进行了对比分析，最后通过最大牵引力试验对比分析两台样机各档前进、后退牵引过程中的牵引力变化情况，并验证理论分析的样机最大爬坡能力。最后对两台样机的起步起振与停车停振性能、操作性能、智能监测与自动控制性能、工况适应性与安全性及运营总费用等进行了对比分析研究。
[Abstract]:Single steel wheel vibratory roller is an indispensable compaction equipment in highway construction. It is mainly used in compaction operation of base, base and fill. Practical experience shows that the compaction degree of base is increased by 1%. This shows that the compaction of the base, base and fill has a very important effect on the bearing capacity and service life of the highway. There are two driving modes for the single wheel vibration roller. The comparative analysis and study of mechanical single drive and full hydraulic double drive can provide a reference for the selection and application of single steel wheel vibratory roller in highway construction. In this paper, firstly, according to the performance parameters of a single steel wheel vibratory roller made by two domestic manufacturers. The comparison of equivalent compaction capacity is obtained by calculation and analysis. The type of single drive type: 26 ton mechanical single drive type and 20 ton full hydraulic double drive type single steel wheel vibratory roller are determined. In order to accurately compare the compaction performance and traction climbing performance of the two prototypes, the related main performance parameters were tested and analyzed. Then the compaction performance and traction slope climbing performance of the two prototypes are compared and analyzed by combining theoretical analysis with experimental research. In compaction performance comparison, firstly, the vibratory compaction mechanism of soil and the physical performance parameters related to compaction are introduced. Secondly, the quality parameters and vibration parameters of single steel wheel vibratory roller are analyzed theoretically. The effect of driving mode and compaction speed on the quality of compaction was studied. The optimum moisture content and maximum dry density of soil were determined by compaction test. Finally, the comparison of the compaction degree, compaction uniformity and surface smoothness of the two prototypes on the same test soil under the best working condition was studied. In the comparison of traction climbing performance, the dynamic distribution of front and rear wheels of full hydraulic double drive single steel wheel vibratory roller is introduced and the dynamic radius of driving wheel is calibrated. Secondly, the performance of the two prototypes determined by the maximum driving force, the maximum adhesion and the stability of the ramp are compared and analyzed. Finally, through the maximum traction test, the two prototypes are compared to analyze the advance of the two prototypes. The variation of tractive force in the process of backward traction is verified, and the maximum climbing ability of the prototype analyzed by theory is verified. Finally, the performance of starting and stopping vibration, operation performance, intelligent monitoring and automatic control, working condition adaptability and safety, and total operating cost of the two prototypes are compared and analyzed.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U415.521

【参考文献】