100t履带起重机回转液压系统设计及改进

发布时间：2018-05-14 10:36

本文选题：履带起重机 + 回转机构　；参考：《山东大学》2011年硕士论文

【摘要】：全液压履带式起重机是当今工程施工中非常重要的工具设备之一,随着我国经济建设的发展,特别是工程建设的发展,对其需求量越来越大,同时对其性能的要求也越来越高。液压回转机构作为起重机的重要机构之一,其各项性能的好坏直接影响到整个起重机的技术性能。在我们实现生产设计过程中,液压系统设计均依靠经验和类比的方法,再辅助于计算机检测系统,最后通过样机来检验设计是否合理。通过对液压系统的检测分析,可以在设计查找出错误之处,并进行完善和二次优化选型。本文以TEREX拓能(山东)重型机械制造有限公司开发制作的PR100(100t)全液压履带实际项目为背景基础,对该起重机回转系统进行了设计计算和选型分析。 (1)分析多种回转机构及回转液压系统,并对100t履带起重机的回转液压系统进行了计算和选型。 (2)测量分析了影响回转液压系统技术特性的主要因素,并对液压履带起重机的回转机构电气控制系统提出了新的要求。 (3)对液压履带起重机回转液压系统进行了改进设计,并利用减缓液压冲击和波动的方法,得出通过并联阻尼的方法,能够大幅降低回转运动的冲击。本文主要阐明液压系统的工程计算和液压元件选型计算,其目的是为指导履带起重机回转液压系统的改进、优化和设计提供了理论依据和优化方法,同时将阻尼阀选用引入到履带起重机的液压系统设计当中,具有指导设计生产的实际意义。
[Abstract]:Full-hydraulic crawler crane is one of the most important tools and equipments in engineering construction nowadays. With the development of economic construction in China, especially the development of engineering construction, the demand for crawler crane is increasing, and the requirement for its performance is becoming higher and higher. As one of the important mechanisms of crane, hydraulic rotary mechanism has a direct impact on the technical performance of the whole crane. In the process of realizing the production design, the hydraulic system design depends on the experience and analogy method, and then assists in the computer inspection system. Finally, the prototype is used to verify whether the design is reasonable or not. By testing and analyzing the hydraulic system, we can find out the mistakes in the design, and perfect and optimize the selection of the hydraulic system. Based on the actual project of full hydraulic crawler developed by TEREX Tone (Shandong) heavy Machinery Manufacturing Co., Ltd., this paper makes design calculation and type selection analysis on the rotary system of the crane. 1) analyze various kinds of rotary mechanism and rotary hydraulic system, and calculate and select the rotary hydraulic system of 100t crawler crane. The main factors affecting the technical characteristics of rotary hydraulic system are analyzed, and new requirements for the electrical control system of rotary mechanism of hydraulic crawler crane are put forward. In this paper, the hydraulic system of hydraulic crawler crane is improved, and the method of reducing hydraulic shock and fluctuation is used to reduce the impact of rotary motion by the method of parallel damping. This paper mainly expounds the engineering calculation and hydraulic component selection calculation of hydraulic system. The purpose of this paper is to provide the theoretical basis and optimization method for improving, optimizing and designing the rotary hydraulic system of crawler crane. At the same time, the selection of damping valve is introduced into the hydraulic system design of crawler crane, which has the practical significance of guiding the design and production.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH213.7

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