综采工作面选型设计(论文).docVIP

摘要 本设计主要研究了综采工作面采煤机、液压支架、刮板输送机的选型设计。综合机械化采煤是指完成落煤、装煤、运煤以及顶板支护等一系列机械化的总称。本设计中所研究的煤层为采高2.米的中厚煤层，是较为常见的，所以选型较为容易，采煤机型号的选择主要根据煤层硬度、厚度、倾角等因素来选取，选型后还要计算采煤机的主要参数，采高、截深、生产力、牵引速度、牵引力、截割速度、装机功率。本设计中选用了MG160/375-W采煤机，本采煤机在我国使用较为普遍。在运输方面本设计选用了跟MG160/375-W配套型输送机，并对输送机的输送能力以及刮板链的强度进行了验算。在顶板支护中根据顶板的稳定性选用了支撑掩护式支架，架型需要根据采高、工作阻力等来确定，本设计中选用了型，也是使用较为普遍的一种架型 Abstract The design of shearer, scraper conveyor, hydraulic support design. The comprehensive mechanized coal mining is the completion of coal, coal, coal and roof support and a series of mechanized. The research in the design of the coal seam mining height of 2.8 m thick coal seam, is more common, so the selection is relatively easy, shearer choice of models mainly based on coal seam hardness, thickness, angle select, selection also calculate the main parameters of the coal mining machine, mining height, the cutting depth, productivity, traction speed, traction, the cutting speed, the installed power. This design uses the MG160\/375-W coal mining machine, the shearer is more common in china. In transportation design selected matching with MG160\/375-W SGB-764\/320 type conveyor, conveyor and transport capacity and strength of the scraper chain is checked. In the roof support according to the stability of the roof with chock-shield support, frame type according to the mining height, resistance to determine, this design uses the ZY 6000\/20\/40, is a widely used type. Keywords:fully mechanized coal face;design;shearer;scraper conveyor;hydraulic support 目录摘要 I Abstract II 0言 1 1 采煤机的选型 2 1.1.1 采煤机的发展概况 2 1.1.2 采煤机的发展史 2 1.1.3 我国采煤机的发展展望 3 1.2 采煤机的组成及分类 3 1.2.1 采煤机的分类 3 1.2.2 采煤机组成 4 1.2.3 机械化采煤类型 4 1.3 初选采煤机 5 1.4 滚筒的确定 6 1.4.1 滚筒直径 6 1.4.2 滚筒的截深 7 1.4.3 滚筒的转速 7 1.5 采煤机生产率 8 1.5.1 理论生产率 8 1.5.2 技术生产率 8 1.5.3 实际生产率 9 1.6 采煤机允许的最大牵引速 9 1.7 采煤机功率 10 1.7.1 预计装机功率 10 1.7.2 截割功率 10 1.8 牵引和辅助功率 10 1.8.1 采煤机的牵引功率 10 1.8.2 辅助装置功率 10 1.8.3 装机功率 10 1.8.4 采煤机牵引力 11 1.9 服务年限 11 2 支护设备的选型 12 2.1 液压支架的组成 12 2.2 液压支架的工作原理 13 2.2.1 降柱 13 2.2.2 移架 13