支撑掩护式液压支架总体方案及立柱设计.doc

支撑掩护式液压支架总体方案及立柱设计 摘要 在采煤工作面煤炭生产过程中 ，为了防止顶板冒落，维持一定的工作空间，保证工人安全和各项工作的正常运行，必须对顶板进行支护 。而液压支架是高压液体用为动力，由液压元件与金属构件组成支护控制顶板的设备，它能实现支撑、切顶、移架和推移输送机等一整套工序，实践表明液压支架具有支护性能好、强度高、移架速度快，安全可靠等优点。液压支架与可弯曲输送机和采煤炭机组成综合机械化采煤设备，它的应用对增架采煤工作面产量、提高劳动生产率，降低成本 ，减轻工人体力劳动和保证安全生产是不可缺少的有效措施。因此液压支架是技术上先进， 经济合理，安全上可靠、是实现采煤综合机械自动化不可缺少的主要设备。 煤炭是工业的食粮，能源生产和消费结构中以煤为的格局不会改变，实践证明大力发展综合机械化采煤。研制和使用液压支架是非常关键的，我国从六十年代开始研制支撑式液压支架。液压支架在我国煤矿使用二十年的历史，从消化引进设备开始，到现在自行研制开发，我们已积累了丰富的经验，这些经验进行总结和提高都是很重要的。到目前为止，在我们煤矿中使用的支架的类型很多。本论语文设计的是关于煤层厚度在3.0～3.6m。直接顶为2类，老顶级别为三级的支撑掩护式液压支架的设计。和液压支架中的重要组成部件，立柱的设计。 关键字：液压支架、立柱、掩护、支撑 ABSTRACT The coal is our country’s conventional energy, along with the national economy development, the coal required quantity is more and more big, synthesis mechanization mining coal has a lot of merits: big output, high efficiency, low cost, the improvement of work environment, the reduction of unwieldy physical labor, and so on . Picks the working surface in the synthesis, the hydraulic pressure support is one of main equipment, it is a extremely important link to reasonably and correctly design the hydraulic pressure support, in order to adapt the different mining coal condition. The hydraulic pressure support has used for many years in our country’s coal mine, accumulated rich experience, and introduces the overseas advanced technology unceasingly, it is imperative to carry on the summary and the enhancement in this foundation. In order to adapt to the need of mining coal working surface, whose coal bed thickness is 3.0~3.6m、directly gore is second kind、the rank of old is first, therefore we has designed the support shield type hydraulic pressure support and an important part, column design.The column has the function of withstanding roof load and adjusting the height of roof holding. Key words: coal; mechanization; bracket; column 目录 前言………………………………………………………………………………1 1支撑掩护式液压支架的概述…………………………………………2 1.1 设计的原始条件……………………………………………………………2 1.2 支撑掩护式液压支架的特征参