毕业设计论文汽车起重机支腿液压系统设计 .doc

摘要 PAGE IV PAGE IV 汽车起重机支腿液压系统的设计 摘 要 本设计在分析汽车起重机的功能、组成和工作特点的基础上，并结合国内外汽车起重机的运用现状和发展趋势，设计了一款中小吨位汽车起重机底盘支腿液压系统。在设计本机液压系统中，通过阅读大量国内外相关资料和调研市场上已存在产品，对中小吨位汽车起重机的功能和工作原理进行了深入的了解和分析，具体分析了汽车起重机液压系统的功能、组成、工作特点以及系统类型，总结出液压传动在汽车起重机应用中的优缺点。根据汽车起重机的工作特点对支腿液压系统进行典型工况分析，确定了液压系统要求；结合液压系统原理拟定支腿液压系统底盘分布图、支腿液压管路图。根据汽车起重机的技术参数对液压系统进行了设计计算，确定了液压系统元件；并结合支腿机构的主要参数对支腿机构强度校核与稳定性分析，对支腿回路的组成原理和性能进行分析；通过对系统压力损失的验算和发热校核，检验液压系统设计的合理性。 关键词：汽车起重机； 液压系统； 支腿液压； 设计计算 Hydraulic system design of Outrigger of truck crane ABSTRACT The design analysis of truck crane on the basis of the functions, composition and characteristics of work, application situation and development trend of domestic and international truck crane, designed a hydraulic system for small and medium tonnage truck crane chassis legs. In the design of the hydraulic system, by reading a lot of relevant information already exists on the market and research products at home and abroad, for small and medium tonnage truck crane capabilities and in-depth understanding and analysis of the working principle, specific analysis of crane hydraulic system characteristics and system functions, composition, work type, summary of advantages and disadvantages in application of hydraulic truck crane. Legs according to the characteristics of truck crane hydraulic system analysis of typical conditions, determine the hydraulic system requirements; combination of hydraulic system for hydraulic system developed leg base map, the hydraulic support leg pipe. According to the technical parameters of the crane on the design and calculation of hydraulic systems, hydraulic system components were identified and combined with leg mechanism of main parameters on leg strength and stability analysis of mechanism, composition theory and performance analysis of the leg loops through to system pressure loss calculation and heat checking, inspection of hydraulic system design of rationality. KEY WORDS: Truck crane Hydraulic system, Outrigger hydraulic, Design calculati