2619 顎式破碎機(jī)的整體設(shè)計(jì)

2619 顎式破碎機(jī)的整體設(shè)計(jì),顎式破碎機(jī),整體,總體,設(shè)計(jì) 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文Influence of some rock strength properties on jaw crusherperformance in granite quarryAbstract：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 rocks．Investigation was conducted on four different rock samples namely marble．dolomite．1imestone and granite which were representatively selected from fragmented lumps in quarries．Unconfined compressive strength and Point load tests were carried out on each rock sample as well as crushing time and size analysis．The 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)test．6.43 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)standard．the granite rock sample maybe classified as having very high strength and dolomite rock sample，low strength．Also，the granite rock has the highest crushing time(2 1．O s)and dolomite rockhas the least value(5．0 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 types．1 IntroductionThe strength of a material refers to the materials ability to resist an applied force．Strength property of rock is the ability of the rock material to resist failure when load is applied without yielding or fracture．The mechanical properties of rock depend upon 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文the interaction between the crystals，particles and cementation material of which it is composed．The yield strength of a material isan adequate indicator of the material’s mechanical strength and is the parameter that predicts plastic deformation in the material．fromwhich one can make informed decisions on how to increase the strengthof a material depending on its micro-structural properties and the desired end effect．Strength is considered in terms of compressive strength，tensile strength，and shear strength，namely the limit states of compressive stress，tensile stress and shear stress， respectively．According to Reference，the effect of dynamic loading is probably the most important practical part of the strength of materials，especially the problem of fatigue．Repeated loading often initiates brittle cracks，which grow slowly until failure occurs．It 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 industrially．This 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 fines．Jaw 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 requirement．This 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 rock．The 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 materials．Point load test is used to determine rock strength indexesin geotechnical practice．Rock lithologies were classified into 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文general categories and conversion factors were determined for each category．This 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 operations．Crushing 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 throughout．The 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 fines．The 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 stage．Low 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 rock／ore materials．In 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 dependent．The particle size distribution of a matedal is important in understanding its physical and chemical propenies．It affects the strength and load bearing properties of rocks．The easiest conventional method of determining mineral particle size is sieve analysis，where grain size is separated on sieve of different sizes／河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文apertures using Sieve Shaker．Thus the particle size distribution is defined in tems of discrete size ranges and measured in micron．It 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 sieves．However，the idea of notional‘sieve’that‘retains’particles above a certain size and‘passes’panicles below that size is universally used in presenting panicle size distribution data of all kinds．The size distribution may be expressed as a‘range’analysis，in which the amount in each size range is listed in order of fineness of particles．It may also be presented in‘cumulative form’in which thetotal of all sizes‘retained’or‘passed’by a single notional‘sieve’is given for a range of sizes．Range analysis is suitable when a particular ideal mid—range panicle size is being sought while cumulative analysis is used where the anlount of ‘under-size’ or‘over-size’must be controlled．2 Materials and methodThe rock samples used for the investigation were obtained from different quarries in Nigeria．Dolomite，limestone and marble sampleswere collected from Edo State and granite rock samples from Ondo State。 Nigeria．Five boulders of each rock type of dimension 90 cm×50 cm×50 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 transportation．For the unconfined compressive strength test，the rock sample was cut into square shape with dimension of 60 mm×60 mm with masonry saw andVernier caliper was used to measure the dimension．Also．for the point load test，the rock samples were broken into irregular shape 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文with sledge hammer．Vernier caliper was used to measure the diameter and length of irregular shaped rock samples from the different locations．The 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 respectively．The readings were taken and recorded．The 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 Shaker．The crushing times were taken and recorded and the weights ofsamples retained on the sieves recorded for size distribution．The rock sample were cut into square shape by using masonry cutting machine，the cut samples were smooth，free of abrupt irregularities and strength．Five 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 times．The screening of the crushed rock samples was carried out in a set of sieve using the Laboratory Sieve Shaker．The 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 bottom．A tight fitting pan or receiver was placed below the bottom sieve to receive the finest grained which is referred to as undersize．The 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 process．The set of the sieve was then placed in a sieve shaker which vibrates the sieve for proper screening．This operation was carried out on each of the rock sample for five minutes．This was achieved by using the automatic control timer of the sieve shaker．After the screening analysis，the 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文retained sample on each sieve was measured on weigh balance and recorded to the cotresponding sieve opening size．河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文顎式破碎機(jī)在花崗巖采掘中受巖石強(qiáng)度性能的影響摘要： 巖石強(qiáng)度性能的影響在顎式破碎機(jī)性能上取決于破碎的時(shí)間和巖石粒度分配。調(diào)查被分為了四個(gè)不同的巖石樣品，既是從采 破碎的 的 性的大理石， 石，石 石，和 巖樣品。 樣品 了在 同的破碎時(shí)間和粒 分 的 強(qiáng)度和? ￠￡?￥。 ? 樣品的§currency1'“ 和??的破碎時(shí)間和?fi巖石fl 的粒度分配??的–??·。強(qiáng)度￠￡?￥ 巖是??的??101.67MP的 強(qiáng)度，6.43MP的”￠￡?￥，?… 石在 強(qiáng)度‰??了30.56，在”￠￡?￥的為0.95MP。 ? `′?巖石機(jī)?強(qiáng)度ˉ?， 巖樣品被分fl為了 ˙?的強(qiáng)度 石為¨ 的強(qiáng)度?！?， 巖 ???的破碎時(shí)間 21.??， 石 ?ˇ的破碎時(shí)間— 5.0??。 于?￥的 ?，? 巖石fl 的破碎時(shí)間§?˙ 強(qiáng)度性能的影響。介紹的強(qiáng)度– ? currency1的能currency1。巖石的強(qiáng)度性能是 ￠? a 時(shí)巖石 破?的能currency1。巖石的currency1學(xué)性?取決于?o 間的 ，?是 ?粒和 ? ?。 的 a強(qiáng)度是 的機(jī)?強(qiáng)度的ˉ'“ 是? ?性??的 ，從 從 微觀 構(gòu)特性和期望效如何提? 的強(qiáng)度 智的決定。強(qiáng)度被認(rèn)為分別是 強(qiáng)度， 拉強(qiáng)度， 剪強(qiáng)度，即 應(yīng)currency1，拉應(yīng)currency1和剪應(yīng)currency1極 態(tài)計(jì)算。 '考，動(dòng)態(tài) ￠效應(yīng) 能是 強(qiáng)度的?重要實(shí)踐 分，尤 是在疲勞問(wèn)題上。重復(fù)￠￡常常?產(chǎn)生 縫， 增長(zhǎng)緩慢直?發(fā)生故障。?為重要的就是在實(shí)￥室規(guī)模的礦石破碎使 工業(yè)加工的 利性和經(jīng)濟(jì)性。在任何破碎和研磨設(shè)備產(chǎn)品 貴重細(xì)磨礦石就被 制例如釋放大小， 磨性'“ 定， 粗 細(xì)比例'“。顎式破碎機(jī)在礦山和采石 于破碎巖石 。?提供河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文了在重 破碎機(jī)設(shè)計(jì)的?新技術(shù)， 實(shí)現(xiàn)?產(chǎn)量、更大的進(jìn) 口、分 大 機(jī)、回轉(zhuǎn)度、 滿(mǎn)足安裝要求的顎式破碎機(jī) 架和 撐腳定位。 破碎機(jī)是為了異常重￠連續(xù)運(yùn)行 §巖石強(qiáng)度性能影響???佳效 操 和長(zhǎng)壽命…設(shè)計(jì)的。巖石強(qiáng)度性能的影響 能?導(dǎo)致顎式破碎機(jī)設(shè)計(jì) 規(guī)定功能的喪失。 強(qiáng)度 ?的主要特征就是巖石 強(qiáng)度的定量方法。”￠￡?￥ 于在巖土工程實(shí)踐 確定巖石強(qiáng)度 “。巖石巖性分為?般fl和確定 個(gè)fl別的轉(zhuǎn)換因子。 使得完整的巖石強(qiáng)度的“ 將提供巖土工程“—分 與實(shí)證巖o分fl 統(tǒng)，例如煤礦頂板”￡￠?￥。粉碎是礦 加工工程的 ? 分，是為 步 礦工 行動(dòng) ?備的– 。破碎巖石的 采是分 進(jìn)行，與 粉碎進(jìn)行 常使 顎式破碎機(jī)和 的 分 和 ?。從 觀 ，更大“量的粉碎 ，在整個(gè)生產(chǎn)?程 更?的 細(xì)粉碎生產(chǎn)比例。 破碎機(jī) 直 的 制?生產(chǎn)?程 的 細(xì)破碎的 ?個(gè)? 的研 ?· 能–??礦山設(shè)備操 和礦 細(xì)生產(chǎn)。得 的 論 ， 細(xì)的 的巖石 生產(chǎn)的與巖石的破碎 “是? 比– 的，在生產(chǎn)? …不 增長(zhǎng)。 ˇ在生產(chǎn) ? ?程 粉 的比例，特別是在巖石礦 是 碎的，?…，生產(chǎn)的 粉 能比?個(gè)使 ¨ˇ的 更?的 ?程。在粒度分 ·確定粒子?￠分￡ 巖石?礦石 粒度分￡的方法，在實(shí)踐，礦 ￥ 加工設(shè)備，?要§currency1?￠ 制， ˇ規(guī)模效應(yīng)，使?粒的分 ' 運(yùn)動(dòng)，了“?的 理和?學(xué)性? 的粒度分￡是重要的。?影響了巖石的強(qiáng)度和?￠性能，??fi的礦 ?粒的大小決定的常規(guī)方法是fl分 ,在?粒?￠大小不同的分 ? flfl–動(dòng)fl使 。因 ，粒度分￡是定?在 ??￠· ??和微? 量。? 常是在?個(gè)確定的?￠· ?”?… 的‰ 的大小樣品 。 定的? 方法? 的· 更`的大小·定?， ?′得和使的fl? 于 的 ?￠· fl ? 。粒度分￡ 在??￠· ˉ‰在?粒細(xì)度? 為?個(gè)· 的分 。? 能 ?在于˙ ˉ‰¨在?￠ 定的· 被?個(gè)?? ?上的˙fl子¨? ‰的?￠ 定的 ˙??¨和˙ ?¨。極ˇ分 是?— 在?個(gè)特定的理 在 求粒 分的方法，… 分 是 ·分 被 制的 于?￠和 ??￠的 分。河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文2.材料與方法 在 利 巖石樣品 ·調(diào)查研 從不同采石 ′得的樣品。 石，石 巖和大理石樣品 子 ， 巖 子 。 利 ， ?為90 ?×50?×50 ?的石 性從? 于fi?的a ??的 分。就是 ，如不連續(xù) 縫，連 ，破碎?方 進(jìn)行 ??裝， ?o在運(yùn) ?程 ?。 于強(qiáng)度?￥，巖石樣品被currency1 機(jī)和 ˉ?? 量?￠·currency1?60 ?×60 ?的方??！?， 于”￠￡ ?，巖石樣品 ?分?了不規(guī) 的?。 ˉ??· 量直 從不同的 ”和不規(guī) ?的巖石樣品長(zhǎng)度。長(zhǎng)度??—為直 量 定。巖石樣品制備和巖石currency1學(xué)強(qiáng)度ˉ?的實(shí)￥室 ?， 個(gè) ? `??進(jìn)行使?o 和 ?￥機(jī)，分別 進(jìn)行”￠￡實(shí)￥。 采取的 “和記錄，同?的巖石樣品 粉碎是利 實(shí)￥室破碎機(jī)和?粒大小分￡的搖動(dòng)fl粉器·模擬fl 的。粉碎時(shí)間被分別采取和記錄，樣品在fl子上粒度分￡的重量 被記錄。巖石樣本被 石currency1割機(jī)currency1?了方?，currency1割樣品˙光滑，? 不規(guī) 的生 的分。 巖石樣品進(jìn)行了 ?， 個(gè)式樣在 被破?時(shí) 記錄為了 破?￡￠記錄，從 強(qiáng)度?￥機(jī) 觀 ?。? 不同巖石樣品的腫 被實(shí)￥室顎式破碎機(jī)破碎…?記錄 · 破碎的時(shí)間，該破碎巖石樣品進(jìn)行了fl fl￠使 實(shí)￥室fl–動(dòng)fl。fl網(wǎng)被安ˉ在了遞 的：4700，2000，1700，11 80，850，600，425，和212 ， ?將fl 在 頂 ?持?大的 度，在底 ?持?小的 度。?個(gè)緊§配—的的盤(pán)被放置在了fl的底 ，為了 收好的?￠不足的?粒。在粉碎樣品放置于 ”的頂fl 是 ·掩”?，是在工 防止巖石樣本飛走。? 個(gè)fl子放置在?個(gè)搖動(dòng)fl粉器 ，利 震動(dòng) ?個(gè)? 的fl 。 個(gè)操 是在 個(gè)巖石樣品 為5分鐘。 是 ?使 該–動(dòng)fl，fi動(dòng)定時(shí) 制的。fl 分 ， 個(gè)??樣品 量o重?衡和記錄fl 。河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文摘 要國(guó)內(nèi)使用的顎式破碎機(jī)類(lèi)型很多, 復(fù)擺顎式破碎基結(jié)構(gòu)簡(jiǎn)單，制造容易、工作可靠、使用維修方便，所以常見(jiàn)的還是傳統(tǒng)的復(fù)擺顎式破碎機(jī)。本畢業(yè)設(shè)計(jì)主要是為滿(mǎn)足生產(chǎn)需求出料口尺 寸：10~40mm；進(jìn)料塊最大尺寸：125mm；產(chǎn)量：5~16噸而研究的。根據(jù)以上要求我設(shè)計(jì)了復(fù)擺顎式破碎機(jī)。設(shè)計(jì)分析了 顎式破碎機(jī)的發(fā)展現(xiàn)狀和研究顎式破碎機(jī)的意義及復(fù)擺顎式破碎機(jī)機(jī)構(gòu)尺寸對(duì)破碎性能的影響，計(jì)算確定了設(shè)計(jì)參數(shù)。設(shè)計(jì)內(nèi)容主要包括了復(fù) 擺顎式破碎機(jī)的動(dòng)顎、偏心軸、皮帶 、 基、動(dòng)顎 、機(jī) 要 ； 對(duì)顎式破碎機(jī)的工作 理及 和主要 作了 ，包括 、 、機(jī) 結(jié)構(gòu)、 ； 對(duì)機(jī) 參數(shù) 主軸 、生產(chǎn)能 、破碎 、?￠ ￡作了計(jì)算以及對(duì)偏心軸作了設(shè)計(jì)。? ￥簡(jiǎn)單 了破碎的意義、破碎工? 和破碎§的計(jì)算，顎式破碎機(jī)的主要 的currency1 、顎式破碎機(jī)的'作及維修 ?！??：復(fù)擺顎式破碎機(jī)；傳動(dòng)； ?fiAbstractfl m–??· ??– ? ??” ???…–? ??‰ m??‰, m ?? –? ?`?m ??” ???…–?河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文′??– …?? ?…– ? ??????–? ? ?·m `– ???? ???–, –??‰ m????? ???–,ˉ–`·??`– ” ?˙, ??–?·–?? ?– ?·? ?? ??–, ? mm ? ? ??? ·?· ??`¨ m ?? –? ?`?m ??” ???…–? ?…·? ??? ???· ? –?·?? ·? m?·?`‰ ? ?––? ?…– ? ? ?· ? –m?? ??`–? ?· –?10~40mm,?–– ?` ˙ ?· –?125mm??? ???5~16 ? ?? ? ˇ ? ·?? ? ?…– ?? ?– ?–—?·?–m–??? –?·?? ?¨ m ?? –? ?`?m ??” ???…–? fl–?·?? ?? ???`‰?·? ? ?…– ??”¨???…–? ? –?–` m–?? ?–?–?? ?·????· ? ?? ?…– ?·??·?· ?? – ?ˉ–?–?? … ·? ??” ???…–? ?? ?·??–` ? ??`– ??” ???…–? ? ? ???…·??· – –?? ?m?? –, ?` ?`??– –?·?? ???m–?–?? ?…– m?·? ??–?? ??…– –?·?? ·? `? – ? m ?? –? ?`?m ??” ???…–? ??”, ?? – –???· ?…???, ?``–‰, ? ?? ??· ?, m ???`– ??” `??–, ?? ˙ ?? ? m– ·m ?????m ?–??? ·? ? ·?· ? ? ?…– ??” ???…–? ” ?˙·?? ?·? · `– ?? …??? ?–?·??· ?? m?·? m ?–??? ??– ·??? ? – , ·? `? ·?? ?…–·?????? – –?· –, ? ????·?? –?· –, ???m– ???? ???–, `???· ??· ?–?· – ?? ?…– ??m– ?·m– ???m–?–? ? ?…– m? …·?– ? ·? `– ? –– ,? ? ?· ? ? ? ·?‰, ???…·?? ? ? –, ”–? ”–?– ?` ?`??– ?? ?…–– –???· ?…??? –?·?? ? ? ·?· ? ?`? ?·m `‰ ·??? ? – ?…–?·??·?· ?? – ? ????–, ???…·?? ???· ?` ?`??· ?, ?…– m?·?m ?–?? ? ??” ???…–?, ??” ???…–? ·????``??· ? –???· ? ?? ?– ?·? –‰ ” ? ?? ? m ?? –? ?`?m ??” ???…–? ?????m·??· ? ”–??河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文目 錄前 言...............................................................1一 選題背景.......................................................31 發(fā)展現(xiàn)狀與意義概述............................................32 顎式破碎機(jī)的特點(diǎn)..............................................43顎式破碎機(jī)的分類(lèi)...............................................6第一章 物料破碎及其意義.............................................81．1 物料破碎及其意義.............................................81．1．1 破碎的目的.............................................8（1） 制備工業(yè)用碎石................................................81．2 破碎物料的性能及破碎比......................................91．2．1 粒度及其表示方法.......................................91.2.2 礦石的破碎及力學(xué)性能....................................10第二章 基本結(jié)構(gòu)及工作原理.........................................122.1 基本結(jié)構(gòu).....................................................122.2 工作原理.....................................................12第三章 主要參數(shù)的設(shè)定及內(nèi)容........................................143.1已知條件......................................................143.2設(shè)計(jì)內(nèi)容......................................................143.3設(shè)計(jì)要求......................................................14第四章 參數(shù)的選擇和計(jì)算............................................164.1 顎式破碎機(jī)的結(jié)構(gòu)及運(yùn)轉(zhuǎn).......................................164.2 結(jié)構(gòu)參數(shù)的選擇與計(jì)算.........................................164.2.1 給礦口與排礦口的尺寸.....................................164.2.2 鉗角.....................................................174.2.3破碎腔的高度..............................................18河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文4.2.4 動(dòng)顎擺動(dòng)行程和偏心距.....................................184.3主要參數(shù)的計(jì)算................................................204.3.1 動(dòng)顎的擺動(dòng)次數(shù)（偏心軸的轉(zhuǎn)速）...........................204.3.2 生產(chǎn)能力................................................224.3.3 破碎力..................................................234.4 各個(gè) 件的 力分 ...........................................24第 章 主要 件結(jié)構(gòu)尺寸的計(jì)算與選擇..............................27.1 動(dòng)機(jī) 的計(jì)算與選擇.......................................27.1.1 ......................................................27.1.2 動(dòng)機(jī)的選擇.............................................29.2 及 的設(shè)計(jì).............................................30.2.1.計(jì)算 .................................................30.2.2 的結(jié)構(gòu)設(shè)計(jì)............................................34.3偏心軸的設(shè)計(jì)計(jì)算..............................................3 .3.1 偏心軸主要尺寸的 定.....................................3 .3.2偏心軸的 ..............................................37第 章 主要 件的設(shè)計(jì)及結(jié)構(gòu)分 ..................................406.1動(dòng)顎..........................................................406.2 ..........................................................406.3 ..........................................................406.4機(jī) 結(jié)構(gòu)......................................................416. ......................................................426.6 ......................................................436.7 ......................................................44結(jié).............................................................4 .............................................................46參 文?...........................................................48