复摆颚式破碎机的整体设计【cad高清图纸和说明书全套】
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河南理工大学万方科技学院本科毕业设计(论文)中期检查表指导教师: 王 得 胜 职称: 教 授 所在院(系): 机械与动力工程学院 教研室(研究室): 机械设计教研室 题 目 大型颚式破碎机的整体设计学生姓名张娇龙专业班级08机设2班 学号0828070144一、选题质量:(主要从以下四个方面填写:1、选题是否符合专业培养目标,能否体现综合训练要求;2、题目难易程度;3、题目工作量;4、题目与生产、科研、经济、社会、文化及实验室建设等实际的结合程度)该设计符合本科阶段培养专业设计能力,能够很好地训练学生的机械综合能力,理论与实践的结合,开拓视野,培养了学生创新的意识;本题目难易中等,符合本科毕业设计要求;工作量大,需要认真查阅资料,扎实学好专业知识,与任课老师,相关的技术人员沟通,认真完成毕业论文。该课题与实践紧密结合,在日常生活中,它主要应用在冶金,矿山,化工,水泥,电力等工业部门。大大提高了生产力,节约了成本。随着工业的迅速发展,破碎机的发展应用,大大提高了工业用料的质量。该设计在社会领域涉及到实验室,学校,工厂等部门。取得较大的经济利益,能为各行发展提供有力的保障。二、开题报告完成情况:到现在为止已明确的确定了课题的设计方向;并对复摆式颚式破碎机总体结构进行了设计;已经开始对破碎机各主要零部件进行了设计计算,并有了突破性进展,设计过程已经快速展开,确定了工作的内容和方法;同时,已完成了对相关资料的查阅,对课题有了总体的分析。开题报告顺利完成。三、阶段性成果:1、通过对大型颚式破碎机的了解,再加上有关书籍的介绍,算是对大型颚式破碎机有了一个大概的了解。前期阶段主要是对有关于大型颚式破碎机的各方面的文献和资料进行搜集,为设计以后的设计做了必要的准备。 2、中期阶段主要是依据参考资料,从上面找到一些关于关于大型颚式破碎机的信息,首先对其零部件有了大致的了解,其次是已有了大概的设计方法,并开始了一些基本的结构设计。3、正在进行装配图的proe画图和设计说明书。四、存在主要问题:由于这是我第一次单独进行大型颚式破碎机的总体设计,所以刚开始进展的并不是很顺利。而我对这方面的知识掌握比较少,所以需要在图书馆和网上查找更多的相关资料,对有关颚式破碎机的知识进行更深入的了解。不过我坚信,只要自己努力和在指导老师的指引下,我能把各方面的问题逐个击破,最终顺利完成毕业设计。五、指导教师对学生在毕业实习中,劳动、学习纪律及毕业设计(论文)进展等方面的评语指导教师: (签名) 年 月 日河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文Influence of some rock strength properties on jaw crusherperformance in granite quarryAbstractAbstract:The influence of rock strength properties on Jaw Crusherperformance was carried out to determine the effect of rock strengthon crushing time and grain size distribution of the rocksInvestigation was conducted on four different rock samples namely marbledolomite1imestone and granite which were representatively selected from fragmented lumps in quarriesUnconfined compressive strength and Point load tests were carried out on each rock sample as well as crushing time and size analysisThe results of the strength parameters of each sample werecorrelated with the crushing time and the grain size distribution of the rock types。The results of the strength tests show that granite has the highest mean value of 101.67 MPa for Unconfined Compressive Strength(UCS)test6.43 MPa for Point Load test while dolomite has the least mean value of 30.56 MPa for UCS test and 0.95MPa for Point Load test。According to the International Society for Rock Mechanic OSRM)standardthe granite rock sample maybe classified as having very high strength and dolomite rock sample,low strengthAlso,the granite rock has the highest crushing time(2 1O s)and dolomite rockhas the least value(50 s)Based on the results of the investigation,it was found out that there is a great influence of strength properties on crushing time of rock types1 Introduction The strength of a material refers to the materials ability to resist an applied forceStrength property of rock is the ability of the rock material to resist failure when load is applied without yielding or fractureThe mechanical properties of rock depend upon 河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文the interaction between the crystals,particles and cementation material of which it is composedThe yield strength of a material isan adequate indicator of the materials mechanical strength and is the parameter that predicts plastic deformation in the materialfromwhich one can make informed decisions on how to increase the strengthof a material depending on its micro-structural properties and the desired end effectStrength is considered in terms of compressive strength,tensile strength,and shear strength,namely the limit states of compressive stress,tensile stress and shear stress, respectivelyAccording to Reference,the effect of dynamic loading is probably the most important practical part of the strength of materials,especially the problem of fatigueRepeated loading often initiates brittle cracks,which grow slowly until failure occursIt is of paramount importance to first carryout size reduction of an oreor rock material on a laboratory scale for the ore or rock material to be profitably andeconomically processed industriallyThis permitsthe determination of parameters such as liberation size,grindability,coarse to medium to fine proportion in any product of the crushing and grinding equipment and the proportion of values of gangues in the finesJaw Crusher is used for crushing rockmaterial in mines and quarries。It provides the latest technology in heavy duty crusher design that delivers high production,infinite setting adjustment,larger feed opening bolted mainframe,cast swing,jaw holder and optional positioning of the crusher support feet to suit installation requirementThis crusher is designed for exceptional heavy and continuous application with heavy duty part foroptimum operation and long life and this can be influenced by the strength properties of the rockThe influence of rock strength property can result to the loss of capacity to perform the stipulatedfunction for which jaw crusher was designed The UCS was the main quantitative method for characterizing the strength of rock materialsPoint load test is used to determine rock strength indexesin geotechnical practiceRock lithologies were classified into 河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文general categories and conversion factors were determined for each categoryThis allows for intact rock strength data to be made available through point load testing for numerical geotechnical analysis and empirical rock mass classification systems such as the Coal Mine Roof Rating(CMRR) Crushing is an integral portion for mineral processing operations and is critical for the preparation of ore for downstream process formineral processing operationsCrushing of quarried rock is carried out in stages,with the primary crushing stage typically carried out using jaw crusher and subsequent(secondary and tertiary)From field observation,the greater the number of crushing stage,the higher theamount of fine produced as a proportion of total plant throughoutThe type of crusher used also directly controls the amount of fines produced A recent study of quarry fines looked at possible relationship between quarry plant operation and the generation of quarry finesThe conclusion drawn have been criticallyrevealed that hard rock aggregate plant production is directly proportional to the number of crushing stages;it increases with an increase in production stageLow reduction fines generation at each stage especially where the rock or mineral are fragile,however,the cumulative fines production may be higher than a process using fewer stages with higher reduction The panicle size analysis is the method used to determine the particle size distribution or the grain size distribution of rockore materialsIn practice,close size control of feed to mineral processing equipment is required in order to reduce the size effect and make the relative motion of the particles separation dependentThe particle size distribution of a matedal is important in understanding its physical and chemical propeniesIt affects the strength and load bearing properties of rocksThe easiest conventional method of determining mineral particle size is sieve analysis,where grain size is separated on sieve of different sizes河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文apertures using Sieve ShakerThus the particle size distribution is defined in tems of discrete size ranges and measured in micronIt isusually determined over a list of size ranges that covers nearly all the sizes present in the sample Some methods of determination allowmuch narrower size ranges to be defined that can be obtained by use of sieves and are applicable to panicle sizes outside the range available in sievesHowever,the idea of notionalsievethatretainsparticles above a certain size andpassespanicles below that size is universally used in presenting panicle size distribution data of all kindsThe size distribution may be expressed as arangeanalysis,in which the amount in each size range is listed in order of fineness of particlesIt may also be presented incumulative formin which thetotal of all sizesretainedorpassedby a single notionalsieveis given for a range of sizesRange analysis is suitable when a particular ideal midrange panicle size is being sought while cumulative analysis is used where the anlount of under-size orover-sizemust be controlled2 Materials and method The rock samples used for the investigation were obtained from different quarries in NigeriaDolomite,limestone and marble sampleswere collected from Edo State and granite rock samples from Ondo State。 NigeriaFive boulders of each rock type of dimension 90 cm50 cm50 cm were representatively selected from recently blasted portion of the rocks which were ftee from natural defects,that is,discontinuities such as cracks,joints,fractures etc were packed properly to avoid damage during transportationFor the unconfined compressive strength test,the rock sample was cut into square shape with dimension of 60 mm60 mm with masonry saw andVernier caliper was used to measure the dimensionAlsofor the point load test,the rock samples were broken into irregular shape 河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文with sledge hammerVernier caliper was used to measure the diameter and length of irregular shaped rock samples from the different locationsThe mean value for length ad diameter was detemined 。 The rock samples were prepared and tested in the laboratory to Intemational Society for Rock Mechanics Standard for each strength test carried out using Masonry Saw Machine and Compression Testing Machine and Point Load Tester respectivelyThe readings were taken and recordedThe size reduction of equal weighed of the rock sampleswas done using Laboratory Jaw crusher and the particle size distribution was carried out in notional set of sieves using Sieve ShakerThe crushing times were taken and recorded and the weights ofsamples retained on the sieves recorded for size distributionThe rock sample were cut into square shape by using masonry cutting machine,the cut samples were smooth,free of abrupt irregularities and strengthFive specimen of each of the rock samples were tested and the failure load was recorded for each test as the failure was observed axlally in the compressive testing machine Some lumps of the different rock types were then crushed using theLaboratory Jaw crusher and taken record of the crushing timesThe screening of the crushed rock samples was carried out in a set of sieve using the Laboratory Sieve ShakerThe sieve was arranged in the order of decreasing apenure:4700,2000,1700,11 80,850,600,425,and 212 by placing the sieve that has the largestopening at the top and the least opening at the bottomA tight fitting pan or receiver was placed below the bottom sieve to receive the finest grained which is referred to as undersizeThe crushed sample was placed on the top sieve and a lid was used to cover it to prevent escape of the rock sample during me processThe set of the sieve was then placed in a sieve shaker which vibrates the sieve for proper screeningThis operation was carried out on each of the rock sample for five minutesThis was achieved by using the automatic control timer of the sieve shakerAfter the screening analysis,the 河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文retained sample on each sieve was measured on weigh balance and recorded to the cotresponding sieve opening size河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文颚式破碎机在花岗岩采掘中受岩石强度性能的影响颚式破碎机在花岗岩采掘中受岩石强度性能的影响摘要摘要: 岩石强度性能的影响在颚式破碎机性能上取决于破碎的时间和岩石粒度分配。 调查被分为了四个不同的岩石样品,既是从采掘场支离破碎的块状中挑选出的具有代表性的大理石,白云石,石灰石,和花岗岩样品。 对每种样品都做了在相同的破碎时间和粒级分析下的无测限抗压强度和集中载荷试验。 每一种样品的受力参数都和它们的破碎时间和各自岩石类型的粒度分配一一的关联起来。强度载荷试验表明花岗岩是最高的达到101.67MP的无测限抗压强度,6.43MP的点载荷试验,然而白云石在无测限抗压强度只达到了30.56,在点载荷试验的为0.95MP。 通过国际社会岩石机械强度标准,花岗岩样品被分类为了具有很高的强度白云石为较低的强度。而且,花岗岩具有着最高的破碎时间(21.秒),白云石具有最少的破碎时间值(5.0秒)。基于试验的结果可以看到,各种岩石类型的破碎时间受到很多强度性能的影响。介绍介绍 材料的强度关系到这种材料抵抗外部压力的能力。 岩石的强度性能是当负载没有屈服或者断裂时岩石材料抵抗破坏的能力。 岩石的力学性质取决于晶体之间的相互作用,它是由颗粒和胶结物质组成。 材料的屈服强度是材料的机械强度的指标参数也是预测材料塑性变形的依据,从此可以从其微观结构特性和期望效果中对如何提高材料的强度做出明智的决定。 强度被认为分别是抗压强度,抗拉强度,抗剪强度,即对压应力,拉应力和剪应力极限状态计算。 据参考,动态负载效应可能是材料强度的最重要实践部分,尤其是在疲劳问题上。 重复载荷常常会产生裂缝,当其增长缓慢直到发生故障。最为重要的就是在实验室规模的矿石破碎使之工业加工的有利性和经济性。 在任何破碎和研磨设备产品中贵重细磨矿石就被限制例如释放大小,可磨性参数测定,由粗中细比例参数。颚式破碎机在矿山和采石场用于破碎岩石材料。它提供河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文了在重型破碎机设计的最新技术,以实现高产量、 更大的进料口、 分离大型机、 回转度、可满足安装要求的颚式破碎机支架和可选支撑脚定位。这种破碎机是为了异常重载连续运行中受岩石强度性能影响达到最佳效果操作和长寿命而设计的。岩石强度性能的影响可能会导致颚式破碎机设计中规定功能的丧失。 无测限抗压强度测试的主要特征就是岩石材料强度的定量方法。 点载荷试验用于在岩土工程实践中确定岩石强度指数。岩石岩性分为一般类和确定每个类别的转换因子。这使得完整的岩石强度的数据将提供岩土工程数值分析与实证岩体分类系统,例如煤矿顶板点荷载试验。粉碎是矿物加工工程的组成部分,是为下步选矿工艺行动做准备的关键。 破碎岩石的开采是分阶段进行,与初级阶段粉碎进行通常使用颚式破碎机和随后的部分(二级和三级)。 从野外观察,更大数量的粉碎阶段,在整个生产过程中更高的精细粉碎生产比例。 所用破碎机还直接的控制着生产过程中的精细破碎的总额一个最近的研究看起来可能关联着矿山设备操作和矿场精细生产。 得出的结论显示,已精细的坚硬的岩石料生产的与岩石的破碎级数是成正比关系的,在生产阶段它随之而不断增长。 减少在生产每一阶段过程中粉末的比例,特别是在岩石或者矿物是易碎的,然而,生产的累积粉末可能比一个使用较少的阶段具有更高的还原过程。 在粒度分析来确定粒子尺寸分布或岩石/矿石物料粒度分布的方法,在实践中,矿物饲料加工设备,需要密切尺寸控制,以减少规模效应,使颗粒的分离依赖相对运动,了解它的物理和化学性质对材料的粒度分布是重要的。 它影响了岩石的强度和承载性能,最简单的矿物颗粒的大小决定的常规方法是筛分析,在晶粒尺寸大小不同的分离/孔筛筛振动筛使用。因此,粒度分布是定义在离散尺寸范围条款和微米测量。 它通常是在一个确定的尺寸范围涵盖几乎所有的列表的大小样品中。 测定的一些方法允许的范围更窄的大小来定义,可以通过获得和使用的筛适用于此种以外的可用尺寸范围筛选等级。 粒度分布可以表示其中在各尺寸范围排列在颗粒细度等级为一个范围的分析。 它可能也存在于“累积排列”在所有尺寸给定的范围中被一个抽象意义上的“筛子”一系列的尺寸所给定的 “保留”和“通过”。 极差分析是适合当在一个特定的理想中档正在寻求粒径分析的方法,而累积分析是用来分析那些必须被控制的低于尺寸和超过尺寸的部分。河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院本科毕业论文2.材料与方法材料与方法 在尼日利亚岩石样品用来调查研究从不同采石场获得的样品。 白云石,石灰岩和大理石样品才子埃多州,花岗岩才子翁多州。 尼日利亚,五维为90厘米50厘米50厘米的石块代表性从最近由于自然的缺陷形成的其中部分。 就是说,如不连续裂缝,连接,破碎等方面进行妥善包装,以避免在运输过程中损坏。 对于无侧限抗压强度试验,岩石样品被切砖机和游标卡尺测量尺寸来切成60毫米60毫米的方形。 而且,对于点载荷测试,岩石样品用雪橇锤分成了不规则的形状。游标卡尺来测量直径从不同的地点和不规则形的岩石样品长度。长度平均值为直径量测定。 岩石样品制备和岩石力学强度标准的实验室测试,每个测试由国际协会进行使砌体锯床和压缩试验机,分别对其进行点载荷实验。 已采取的读数和记录,同等的岩石样品缩减粉碎是利用实验室破碎机和颗粒大小分布的摇动筛粉器来模拟筛选的。 粉碎时间被分别采取和记录,样品在筛子上粒度分布的重量也被记录。 岩石样本被砖石切割机切成了方形,切割样品很光滑,没有不规则的生硬的部分。 五种岩石样品进行了测试,每个式样在其被破坏时都记录为了其破坏荷载记录,从抗压强度试验机中可以观察到。一些不同岩石样品的肿块被实验室颚式破碎机破碎而且记录下来其破碎的时间,该破碎岩石样品进行了筛选筛载使用实验室筛振动筛。筛网被安排在了递减的:4700,2000,1700,11 80,850,600,425,和212 ,通过将筛具在其顶部保持最大的开度,在底部保持最小的开度。一个紧密配合的的盘被放置在了筛的底部,为了接收好的尺寸不足的颗粒。在粉碎样品放置于有盖的顶筛中是用来掩盖它,是在工作中防止岩石样本飞走。然后这个筛子放置在一个摇动筛粉器下,利用震动做一个适当的筛选。 这个操作是在每个岩石样品中为5 分钟。 这是通过使用该振动筛,自动定时控制的。筛选分析后,每个保留样品测量体重平衡和记录筛孔径。河南理工大学万方科技学院本科毕业设计(论文)开题报告题目名称颚式破碎机的整体设计学生姓名张娇龙专业班级08机设二班学号0828070144一、 选题的目的和意义:目的:改革开放30年以来。我国颚式破碎机机械制造业经历了引进消化吸收国外先进技术、合作设计、合作制造、自主设计的发展道路,特别是在实施国务院关于加快振兴装备制造业若干意见的推动下,颚式破碎机机械制造业基本实现了两大转变:一是产品开发由仿制型向自主创新型转变:二是经济运行由粗放型向效益型转变。2000年以来,在国内基础工业和基础建设大发展的拉动下,颚式破碎机机械产品市场需求旺盛,工业总产值和销售额年增长稳定在32%-40%。但我国颚式破碎机机械总体与国际先进水平相比要落后15-20年,在达到上世纪90年代和当代国际先进水平的产品中,其技术来源大多为上世纪80年代中期以后引进国外先进技术和与国外技术合作下,经不断的消化、吸收、改进的产品。国内市场颚式破碎机产品的市场占有率不足80%,在进口的产品中大多为大、精、尖和成套性很强的产品,这为颚式破碎机机械的研究创造了难得的发展机遇。意义:粉碎是石料生产线矿物加工中不可缺少的一种工艺过程,粉碎的任务是提供具有一定粒度、粒度组成和充分解离而又不过粉碎的加工原料,以便下一步的加工、处理和使用。伴随近年来工业技术的发展,在新材料的出现和新用途拓展的同时,物料破碎也在增大。到2008年全国矿石采掘总量己达82.05亿吨,不难想象,将这些矿石粉碎所需要的颚式破碎机机械是多么的多。颚式破碎机类型很多,但得到广泛应用的还是传统颚式破碎机,据不完全统计,目前全国约有100余家颚式破碎机制造厂,所生产的颚式破碎机品种规格有20个以上,全国年产量约1万台,所生产的颚式破碎机结构不尽合理,强度不足又浪费材料。据天利石料生产线介绍,目前颚式破碎机的设计是根据传统的经验结论,而不是科学的计算方法进行的,都是按经验确定各个部件的形状和尺寸,来用这种设计方法,很难设计出既经济又满足强度和刚度要求的颚式破碎机。在当前经济回暖的大环境下,特别是在建设节约型、环境友好型社会的要求下,颚式破碎机企业要生存和发展、要缩短差距和赶上世界先进水平,在满足强度和刚度的条件下对颚式破碎机进行基于有限元理论的结构分析与减重优化研究具有重要的意义.二、 国内外研究综述:颚式破碎机是由美国人布雷克发明的。自第一台颚式破碎机问世以来,至今已有140余年的历史。在此过程中,其结构得到不断地完善。由于颚式破碎机结构简单、制造容易、工作可靠、使用维修方便等优点,所以在冶金、矿山、建材、化工、煤炭等行业使用非常广泛。为了改善颚式破碎机性能和提高工作效率,国内外曾研制过各种异型颚式破碎机。早年,德闲和前苏联都曾研制过液压驱动的颚式破碎机。其特点是提高动颚摆动次数借以增
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