破碎机结构及工作原理研究学位论文.doc

河南理工大学(函授院)毕业论文
破碎机的结构及工作原理研究
摘要
破碎机是冶金、化工、矿山、电力、陶瓷、水泥、建筑和筑路等工业部门广泛应用的主要设备,每年有大量的原料和再利用的废料都需要进行粉碎处理。现就题目要求设计有关石灰石的反击式破碎机。综合考虑,本次设计选择单转子反击式破碎机,可针对不同的破碎粒度进行反击破碎。
本次设计的原型为PF1520型反击式破碎机。在设计过程中,根据最大给料粒度设定转子直径和转子长度,由此初步设计转子轴,并根据转子转速和直径等参数校验转子是否满足弯扭强度要求。其次对破碎腔进行设计,主要设计一、二级反击板。设计时既要考虑让反击面尽可能的接近转子外圆的渐开线方程,又要符合反击板实际的制造情况。当反击板的位置确定后,破碎腔里其它零部件的设计参数和尺寸就基本确定了。再根据转子的转速和破碎腔的结构计算破碎机的生产率并选择合适的电机,最终完成破碎机的结构设计。
Abstract
Impact crushers are applied to such each department as the cement plant , power plant ,etc. in a large amount, so its design has an extensive prospect and experience that can be used for reference. Its design essence is, formerly after total conceptual design, a design which points each main spare part , question of installing and making a reservation etc., and carry on the intensity to check and test to the specific part, and in relevant thematic parts, analysis paring question that the life-span of very beginning of the hammer lengthens in detail . In the design of each spare part , should include the choice , sureness , demand processed , structure craft satisfication of the size of the material , and the demand for cooperating with other parts, etc.. When the intensity is checked , should use relevant formulae , carry on the analysis of the dangerous position, need to check form , mapping , calculation ,etc.. Then to to install , work course , work situation after predict that carries on more overall inspection whole, give consideration to the question in such respects as maintaining and safety ,etc. at the same time . Finally , choose to analyse in machining accuracy , public errand to two groundwork parts, economy and dependability that the breaker soed as to ensure is designed finally.
目录
1 引言 1
反击式破碎机和破碎机的分类 1
击式破碎机的类型: 1
破碎机的分类: 1
反击式破碎机的优缺点 1
反击式破碎机的优点: 1
反击式破碎机的缺点: 2
反击式破碎机的规格和型号 2
2 反击式破碎机的工作原理及破碎实质 3
反击式破碎机的工作原理 3
反击式破碎机的破碎实质 3
破碎的目的和意义 3
矿石的力学性能与反击式破碎机的选择 3
破碎过程的实质 4
3 反击