双频振动实验滚轮设计+CAD图纸
关键字：振动压路机；双频振动；压实；激振频率
Dual-frequency vibration test wheel design
Abstract：Vibratory Roller uses its own gravity and vibration to compact a variety of building and road construction materials. In highway construction, vibratory roller which is wildly used is most suitable to compact non-cohesive soils, gravel, crushed stone mixture and a variety of asphalt concrete. the overall technological level of Chinese roller compared with foreign countries are still gaps, mainly: model insufficiency, heavy and extra-heavy-duty roller production quantity and less variety, the lack of special compaction equipment, comprehensive technical and economic indicators and automatic control which is still lower than the international advanced level. Due to the complex composition and different particle of the material to be compacted, and during materials compaction, physical and mechanical properties changing, leading to multiple natural frequency and changing material. This paper describes the use of dual-frequency vibration mechanism to strengthen the compaction process, the use of multiple excitation frequency synthesizer vibratory compaction method, make compaction equipment excitation frequency and the frequency of the compacted material close in order to improve the quality of compaction and compaction efficiency.
Keywords： Vibratory rollers；dual-frequency vibration; compaction; excitation frequency
目录
1 绪论1
1.1 压路机的应用简述1
1.2 压实的意义1
1.3 压实的基本原理2
1.4 压实机械的分类2
1.5 压路机的国内外发展概况3
1.6 压路机的发展趋势5
1.7 课题的基本内容5
2 整体方案设计6
2.1 总体结构设计6
2.2 传动结构设计6
2.3 振动结构设计8
3 传动设计10
3.1 振动机构10
3.2 行走机构10
3.3 带轮的设计10
4 振动设计12
4.1 振动系统12
4.2 齿轮设计15
4.3 轴的设计16
4.4 偏心块的设计18
4.5 减振块的设计19
5 润滑与密封的设计21
5.1 润滑的设计21
5.2 密封的设计22
6 关键元件的选型和校核23
6.1 轴承与轴与校核承端盖的选择23
6.2 键的选择与校核25
结论26
谢辞27
参考文献28
1 绪论
1.1 压路机的应用简介
压路机是一种以特制钢轮或光面轮胎为作业装置的压实施工机械，广泛应用于道路工程、机场港口、矿山水坝、市政建设等对土石填方及路面铺装材料的压实作业，其作用是增加工作面的密实度，从而提高工作面的结构强度和刚度，增强抗渗透能力和气候稳定性，降低或消除沉陷，最终达到提高工程承载能力、延长使用寿命、降低文修费用的目的。由于压实作业的工况千差万别，压实机械系列和品种规格繁多，可将其简单划分为压路机、夯实机和垃圾压实机等。压路机(工作装置为滚轮)又分为自行式、手扶式和拖式，夯实机(工作装置为平板)又分为冲击平板夯和振动平板夯等。结合中国压路机技术和产品发展的具体情况，可以将压路机分为静碾光轮压路机、单钢轮振动压路机、双钢轮振动压路机、组合式压路机、轮胎压路机、轻型压路机(5 t以下单钢轮、双钢轮及手扶式)和其他特种压路机(拖式、中击式等)等几大系列。