圓錐破碎機(jī)襯板磨損研究
本文選題:圓錐破碎機(jī) + 運(yùn)動(dòng)學(xué)。 參考:《燕山大學(xué)》2015年碩士論文
【摘要】:破碎機(jī)作為破碎礦石物料主要設(shè)備,廣泛應(yīng)用于礦山、建筑、冶金等行業(yè)當(dāng)中。圓錐破碎機(jī)因其破碎粒度范圍廣、效率高等優(yōu)點(diǎn)在破碎過(guò)程中起著不可替代的作用。由于圓錐破碎機(jī)工作環(huán)境惡劣,正常工作時(shí)破碎機(jī)襯板磨損嚴(yán)重,需經(jīng)常更換。隨著破碎的物料總量不斷增加,巨大的鋼耗支出和更換襯板帶來(lái)的時(shí)間浪費(fèi)嚴(yán)重制約著圓錐破碎機(jī)的效率。因此,加強(qiáng)對(duì)破碎機(jī)襯板的磨損研究十分必要,亟需開發(fā)高效、節(jié)能環(huán)保的圓錐破碎機(jī)。文章就圓錐破碎機(jī)襯板磨損狀況進(jìn)行以下研究工作。為了更好地計(jì)算襯板表面的破碎力,基于圓錐破碎機(jī)運(yùn)動(dòng)學(xué)理論和破碎機(jī)腔型幾何結(jié)構(gòu)分析,提出了一種新的破碎機(jī)兩襯板間距的方法,進(jìn)而建立了一種新的計(jì)算襯板表面破碎力的方法,得到了襯板表面的破碎力分布規(guī)律。通過(guò)采用經(jīng)驗(yàn)公式計(jì)算襯板表面平均破碎力,驗(yàn)證了模型的合理性和可靠性,為研究襯板表面的磨損量奠定了基礎(chǔ)。為了更好的預(yù)測(cè)襯板壽命,基于襯板表面破碎力計(jì)算模型,提出新的計(jì)算襯板表面磨損量的計(jì)算模型。通過(guò)與現(xiàn)場(chǎng)實(shí)測(cè)數(shù)據(jù)進(jìn)行比對(duì),驗(yàn)證其有效性,從而能夠更好地預(yù)測(cè)襯板壽命。為了減少襯板表面磨損量,研究了破碎機(jī)結(jié)構(gòu)參數(shù)和工藝參數(shù)對(duì)襯板磨損狀況的影響規(guī)律,并選取動(dòng)錐底角、偏心套轉(zhuǎn)速和進(jìn)動(dòng)角研究變量進(jìn)行優(yōu)化設(shè)計(jì),并計(jì)算優(yōu)化后襯板表面磨損量驗(yàn)證其可靠性。同時(shí)通過(guò)理論推導(dǎo),得到一種新的耐磨腔型的設(shè)計(jì)模型,并通過(guò)計(jì)算襯板表面磨損量驗(yàn)證其耐磨性優(yōu)于原腔型,其對(duì)設(shè)計(jì)破碎機(jī)腔型有一定的參考價(jià)值。
[Abstract]:As the main equipment of crushing ore material, crusher is widely used in mining, construction, metallurgy and other industries. Cone crusher plays an irreplaceable role in the crushing process because of its wide range of crushing granularity and high efficiency. Because the working environment of cone crusher is bad, the liner of crusher is worn seriously under normal working condition, so it needs to be replaced frequently. With the increasing of the total amount of broken materials, the efficiency of cone crusher is seriously restricted by the huge steel consumption and the waste of time caused by the replacement of linings. Therefore, it is necessary to strengthen the research on the wear of crusher liner, and it is urgent to develop an efficient, energy saving and environmental protection cone crusher. In this paper, the following research work is carried out on the wear condition of the lining of cone crusher. In order to better calculate the crushing force on the surface of lining plate, based on kinematics theory of cone crusher and geometric structure analysis of crusher cavity, a new method of distance between two linings of crusher is put forward. Then a new method to calculate the breakage force on the liner surface is established, and the distribution of the breakage force on the liner surface is obtained. The rationality and reliability of the model are verified by calculating the average breakage force of the liner surface by empirical formula, which lays a foundation for the study of the wear rate of the liner surface. In order to better predict the life of the liner, a new model for calculating the wear on the surface of the liner is proposed based on the model of the crushing force on the surface of the liner. The validity of the method is verified by comparing it with the field measured data, which can better predict the life of the liner. In order to reduce the surface wear of the liner, the influence of the crusher structure and process parameters on the wear of the liner was studied, and the dynamic cone bottom angle, eccentric sleeve speed and precession angle were selected to optimize the design. The reliability is verified by calculating the surface wear of the optimized liner. At the same time, through theoretical derivation, a new design model of wear-resistant cavity is obtained, and its wear resistance is proved to be superior to that of the original cavity by calculating the wear quantity of liner surface, which has certain reference value for the design of crusher cavity.
【學(xué)位授予單位】:燕山大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TD451
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