文档介绍：太原科技大学
毕业设计说明书
(2008届)
ZL50装载机
反转单连杆工作装置设计
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ZL50装载机反转六连杆工作装置设计
摘要
装载机是工程机械的主要机种之一,广泛用于建筑、矿山、水电、桥梁、铁路、公路、港口、码头等国民经济各部门。本文中参阅了大量的土方机械的设计参考书,其中大多数是有关装载机方面的,有的是工作装置单一构件的设计,有的则是整个工作装置的设计,并且有许多有关工作装置优化设计方面,各参考所涉及到的装载机虽然型号不同,研究的方法也有差异,但综合起来基本上也概述了现行的设计方法。国外装载机发展迅速,而我国装载机在设计上存在很多问题,其中主要集中在可靠性、结构设计强度等方面。而工作装置对于装载机来说又是重中之重,所以工作装置的设计好坏直接影响到装载机的使用寿命以及工作效率等。虽然现在市场上的装载机已经日趋成熟,但对其进行改进设计仍有非常重要的意义,尤其是装载机的工作装置。装载机工作装置的转斗六连杆机构是由与液压缸,铲斗相关联的两个四连杆机构组合而成。轮式装载机在作业时,靠改变液压缸的长度来使铲斗获得所要求的收斗角和卸料角。机构中各杆件长度及其结构参数确定后,需要对该机构作某些特定计算,以判断机构设计的正确性。在工作循环中速度与加速度变化合理;油缸活塞行程为最佳值;工作装置运动平稳、无干涉、无死点、无自锁;动臂从最底位置到最大卸载高度的举升过程中,保证铲斗中物料不洒落;在卸载后,动臂下放至铲掘位置铲斗能自动放平。
关键词工程机械,装载机,工作装置
The Turn Withershins 6-link Work Equipment Design of ZL50 Wheel Loaders
Abstract
The loader is one of the main kind of the engineering machinery, used in every department of national economy such as the building , mine , water and electricity , bridge , railway , highway , port , quay extensively. In this article has referred the massive folk recipes machinery design reference book, majority is the related car loader aspect, some are works the equipment ponent design, some then is the entire work installment design, and has many related work installments optimization design aspect, each reference involves to the car loader although the model is different, the research method also has the difference, but synthesized basically has also outlined the present design method. The overseas loader development is rapid, but our country car loader has very many problems in the design, mainly concentrates in aspect and so on reliable, structural design intensity. But works the installment regarding the loader to say also is extremely important, therefore the work installment design is good and bad affects directly the car loader service life as well as the working efficiency and so on . Although in the present market car loader already day by day was mature, but carried on the improvement design to it still to