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五、主要零部件的计算鉴于待碎物料的物理性能不一,破碎理论也不完善,物料在冲击破碎时破碎力的大小缺乏可靠的计算依据,所以冲击式破碎机主要件的强度计算通常是参考其他破碎机(主要是锤式破碎机)的数据进行粗略估算或凭借经验选取的。这里,我们参照了一些有关资料,根据我们的体会,归纳并提出了一些计算方法。这些方法无论在论理上或逻辑上都还存在着不少问题,故仅供参考使用。计算时,可采用几种方法同时进行,将其计算结果进行对比,再参照现有设备加以确定。 1.破碎力的确定以往,在确定物料的破碎力时,通常沿用如下计算方法:根据试验室试验得知,在颚式破碎机破碎岩石强度极限为2500～2700公斤/厘米~2、弹性模量为8×10~5公斤/厘米~2、其断
Fifth, the calculation of the main components In view of the physical properties of materials to be broken, broken theory is not perfect, the material crushing force in the impact of the size of the lack of reliable basis for the calculation, so the impact strength of the main pieces of the crusher is usually calculated Refer to the data for other crushers (mainly hammer crushers) for a rough estimate or empirically chosen. Here, we refer to some relevant information, according to our experience, summarized and put forward some calculation methods. There are still many problems in these methods both theoretically and logically, so they are for reference only. Calculations, several methods can be used at the same time, the results of their comparison, and then refer to the existing equipment to be identified. 1. Broken force determination In the past, to determine the crushing force of the material, the following calculation method is usually used: According to the laboratory test, the crushing strength of the jaw crusher is 2500-2700 kg / cm 2, the elastic modulus The amount of 8 × 10 ~ 5 kg / cm ~ 2, the off