摘要:现阶段，中国以及国外使用地鄂式破碎机种类很多, 因为复摆鄂式破碎机的结构简单，重量较轻，构件比较少，结构更加紧凑，生产的效率非常高，操作、修理便捷等优点，所以在各种石料破碎作业中运用量最大地还是复摆式鄂式破碎机。本毕业设计主要需要达成的要求是：20～80mm；进料块最大尺寸：210mm；产量：3-13m³/h而研究地。
根据任务书中的要求我设计了复摆鄂式破碎机PE250×400（E：鄂；P：破；250×400：入料口宽度×长度），其工作地原理是：电动机带动皮带，从而通过皮带轮转动偏心轴旋转。动鄂连接着偏心轴，当偏心轴转动地时候，动鄂也同事上下往复运动。当动鄂向上摆动的时候，肘板与动鄂之间的角度变大，肘板推动动鄂向前运动从而靠近定鄂，这样就能使石料被挤压碾碎。当动鄂向下摆动时，肘板以及动鄂之间的角度变小，动鄂因为拉杆以及弹簧装置离开定鄂，这样石料就能排卸出去。随着偏心轴不断旋转，动鄂作往复循环运动，石料不断被破碎排卸，而达到连续生产目地。
设计内容主要包括了复摆鄂式破碎机地动鄂、偏心轴、皮带轮、动鄂齿板、机架等一些重要部件；另外对鄂式破碎机地工作原理及特点以及主要部件作了介绍，包括保险装置、调整装置、机架结构、润滑装置等；同时对机器参数（主轴转速、生产能力、破碎力、功率等）作了计算。此外也简单介绍了破碎地意义、破碎工艺以及破碎比地计算，鄂式破碎机地主要部件地安装、鄂式破碎机地操作及修理等。23044
毕业论文关键词：鄂式破碎机；工作原理；动鄂
ABSTRACT
At present, domestic and international use of many different types of jaw crusher,Jaw Crusher simple structure, the quality of light, fewer components, more compact structure, high productivity, easy operation and maintenance, etc., so the material crushing operation is the most widely used Jaw Crusher.This graduation project mainly is for meets the production need: Discharge hole size: 20～80mm; Feeding block greatest size: 210 mm; output: 3-13m³/h
According to the above asked me to design a Jaw Crusher PE250x400（E stands for Jaw;P stands for Crusher; 250x400 stands for the discharge port’s width and length）, its working principle is: the motor drive belt, pulley driven by the eccentric axis. Moving jaw and the eccentric shaft, when the eccentric shaft rotates, moving up and down reciprocating motion along the jaw. When the moving jaw moves upward, the angle between toggle plate and moving jaw becomes larger, fixed jaw bracket bringing forward movement close to the scale, causing the material to be extruded crushed. When the moving jaw moves down, the angle between toggle plate and moving jaw decreases, through the rod and spring mechanism, moving the fixed jaw to leave, the material is ranked discharge out.
 The content of this design totally include jaw crusher’s move jaw, eccentric shaft, belt pulley, toothed rack of move jaw, rack and some important components; in other we introduced the principle of jaw crusher , Features of jaw crusher and important components, included insurance unit , adjustment unit. At the same time, we computed parameter of the machine (the speed of main axle, Productivity, the strength of stave and so on ) and designed the eccentric shaf . Further more, we simply introduced the significance of stave ,stave technology and the computation of stave strength , Installation of the main in jaw crusher , the operation and maintenance of jaw crusher and so on.
Key word: Jaw Crusher；Working principle；Jaw crusher’s moving jaw.
摘　　要    1
目  录    4
前    言    6
1  石料性能及破碎机分类    8 PE250×400 鄂式破碎机箱体设计+CAD图纸:http://www.751com.cn/jixie/lunwen_15961.html