《反击式破碎机的设计》-毕业论文设计（学术).doc

摘要 在国民经济建设中，水泥是不可或缺的基础原材料。作为重要的基础产业，水泥行业的发展程度成为一个国家社会发展水平和综合实力的重要衡量指标。我国经济正处于高速发展期，基础设施建设成为国内投资最主要的方式。因此，水泥作为最主要的原材料之一，必然也处于扩张阶段水泥生产过程中，大部分原料要进行粉碎，如石灰石、黏土、铁矿石、煤等。石灰石是生产水泥用量最大的原料，开采后的粒度较大，硬度较高，因此石灰石的破碎在水泥厂的物料破碎中占有比较重要的地位。 破碎过程要比粉磨过程经济方便，合理选择破碎设备非常重要，物料入磨前，尽可能将大物料破碎至均匀、细小的粒度，以减轻粉磨设备的负荷，提高磨机产量，同时也有利于物料的均匀化，提高配料的准确性。破碎机种类包括：颚式破碎机，反击式破碎机，冲击式破碎机、圆锥破碎机、锤式破碎机、旋回式破碎机、复合式破碎机等。 反击式破碎机由转子，上盖，底座，后架四大部分组成，上盖既是破碎机的外壳，又是与内部结构相辅相成的组成部分，上盖内部的衬板对于石料破碎的粒度和破碎机的工作效率起到至关重要的作用。 上盖的设计既要要求外形的美观又要具有实用性，一台机器外观设计过于花俏会造成加工工艺复杂、制造成本上升，过于臃肿，会造成运输困难的同时也增加了制造的成本。我在设计过程中着眼于功能性，节约材料，机身轻便，外形大方几个方面，特别是制作材料的选取，选择的材料要兼具经济性和耐用性。 关键词：水泥，石灰石，反击式破碎机，上盖 Abstract In national economic construction, cement is the indispensable basis of raw materials. As an important basic industry, cement industry development has become a national and social development level and comprehensive strength is important measure index. The economy of our country is in the period of rapid development, infrastructure construction has become the main mode of domestic investment. Therefore, the cement as the main raw material, also in the expansion phase.In the process of cement production, most of the raw material to be crushed, such as limestone, clay, iron ore, coal and other. Limestone is the production of cement dosage is the biggest raw material, after mining of large size, high hardness, therefore limestone crusher in cement plant material crushing occupies a fairly important position. Crushing process than grinding process is economical and convenient, reasonable selection of crushing equipment is very important, the material into the grinding, as far as possible the large crushing to uniform, fine granularity, so as to reduce the grinding equipment load, improve mill output, but also conducive to the material uniformity, high accuracy of batching. Categories include: crusher jaw crusher, impact crusher, impact crusher, cone crusher, hammer crusher, gyratory crusher, compound crusher etc.. Strike back type crushing machine is com