【正文】 受的是刮泥阻力和刮臂、刮板等自重的作用。此外，對(duì)數(shù)螺旋線是一變曲率曲線，刮板制造比較困難，因而在設(shè)計(jì)中可以簡(jiǎn)化成直線刮板的形式，刮板與刮臂中心線的夾角為45度，相互平行排列。其重疊度為刮板長(zhǎng)度投影的10%15%，一般為150—250mm。通常設(shè)計(jì)的刮板高度要比污泥層厚度高出一個(gè)固定值。使用單輪緣車輪時(shí)，當(dāng)兩側(cè)車輪運(yùn)行不同步，它可起到自動(dòng)調(diào)節(jié)的安全保護(hù)作用。 圖 218鋼車輪與鋼軌的配合 圖219導(dǎo)向靠輪與池壁的間距實(shí)心膠輪的形式有壓配式、螺旋連接式和固定式三種，如圖220所示，輪緣的尺寸D（mm）為實(shí)心膠輪的外徑，b（mm）為實(shí)心膠輪寬度，D1(mm)為輪輞外徑，D2（mm）為實(shí)心膠輪制造時(shí)的定位基準(zhǔn)。周邊傳動(dòng)刮泥機(jī)車輪的行駛是靠驅(qū)動(dòng)車輪和軌道之間的粘著力工作的，工作的調(diào)節(jié)是必須使驅(qū)動(dòng)輪的驅(qū)動(dòng)力小于粘著力，如果取得輪與鋼軌間或膠輪與混凝土面的粘著力不夠時(shí)，則出現(xiàn)驅(qū)動(dòng)輪打滑現(xiàn)象。初次沉淀池是一級(jí)污水處理廠的主題處理構(gòu)筑物，或作為二級(jí)污水處理廠的預(yù)處理構(gòu)筑物設(shè)在生物處理構(gòu)筑物的前面。 初次沉淀池的工藝性能： 沉淀時(shí)間 表面負(fù)荷 30～70 沉淀污泥含水率 98% 污泥斗容積 按污泥量停留2d計(jì)聯(lián)軸器是用于連接不同機(jī)構(gòu)中兩軸，使之同回轉(zhuǎn)，并傳遞轉(zhuǎn)矩的一種部件。其最高轉(zhuǎn)速應(yīng)滿足工作轉(zhuǎn)速的要求。對(duì)大型設(shè)備和不便檢修的場(chǎng)合，還應(yīng)能在不需軸向移動(dòng)的情況下裝拆聯(lián)軸器或更換易損件。1) 剛性聯(lián)軸器（1） 套筒聯(lián)軸器（2） 凸緣聯(lián)軸器（3） 夾殼聯(lián)軸器（4） 緊箍咒夾殼聯(lián)軸器2) 撓性聯(lián)軸器（1） 無(wú)彈性元件撓性聯(lián)軸器（2） 非金屬?gòu)椥栽闲月?lián)軸器（3） 金屬?gòu)椥栽闲月?lián)軸器在深知所設(shè)計(jì)產(chǎn)品的工況及技術(shù)要求的情況下，選擇聯(lián)軸器應(yīng)考慮以下問(wèn)題：a）所需傳遞轉(zhuǎn)矩大小、載荷性質(zhì)及產(chǎn)品對(duì)緩沖和減振方面的要求；b）軸的轉(zhuǎn)速高低和引起的離心力大??；c）兩軸對(duì)位移大小（徑向位移、軸向位移、角位移）；d）聯(lián)軸器的制造、安裝、維修、成本。選擇或校核時(shí)的主要依據(jù)是聯(lián)軸器實(shí)際所需傳遞的轉(zhuǎn)矩，由于各種機(jī)械的轉(zhuǎn)矩變化規(guī)律常較復(fù)雜，不易精確確定，通?？砂礄C(jī)械設(shè)計(jì)上計(jì)算轉(zhuǎn)矩來(lái)選擇或校核。表21 工作機(jī)特性動(dòng)力機(jī)特性工作機(jī)特性轉(zhuǎn)矩變化小轉(zhuǎn)矩變化沖擊載荷中等轉(zhuǎn)矩變化沖擊載荷大電動(dòng)機(jī)、汽輪機(jī)~~~多缸內(nèi)燃機(jī)~~~單、雙缸內(nèi)燃機(jī)~~~取=聯(lián)軸器的規(guī)格選擇：聯(lián)軸器的規(guī)格選擇：查手冊(cè)選取套筒聯(lián)軸器Ⅰ型聯(lián)軸器。板梁的彎矩和剪力,如圖31(b)、31(c)所示。從排泥機(jī)械總體來(lái)看,均按均布荷載計(jì)算影響不大。 所得彎矩圖形如圖31(b)所示,為一條投影長(zhǎng)度、高度為的拋物線。 通常板梁的許用撓度不大于。綜上所得=65215N單位長(zhǎng)度上的重力為最大彎矩為其中K——載荷系數(shù)，一般取1~最大剪力為如圖33所示，各組合斷面的特性為∟95568為 8為 －8300為 ，∟95568為 其中I為慣性矩，A為截面積按平面圖形的幾何性質(zhì)，先計(jì)算組合圖形的形心軸位置。1）桁架自重載荷分配： 按4節(jié)點(diǎn)分配： 中間節(jié)點(diǎn) 兩端節(jié)點(diǎn) 2）活載分配：，總活載W==14400N 按4節(jié)點(diǎn)分配： 中間節(jié)點(diǎn) 兩端節(jié)點(diǎn) 結(jié)論 經(jīng)過(guò)三個(gè)多月的努力，通過(guò)在圖書館、網(wǎng)上查閱有關(guān)資料，了解了刮泥機(jī)的結(jié)構(gòu)，并且加深了對(duì)刮泥機(jī)運(yùn)行過(guò)程、機(jī)械結(jié)構(gòu)系統(tǒng)的認(rèn)識(shí)，更加熟悉掌握了機(jī)械設(shè)計(jì)、機(jī)械制圖方面的知識(shí)和能力。致謝 光陰似箭，轉(zhuǎn)眼間大學(xué)四年的生活在匆忙中即將過(guò)去。本論文是在導(dǎo)師藺超文老師的精心的指導(dǎo)和幫助下完成的。您們多年如一日地默默奉獻(xiàn)著，支持著我完成學(xué)業(yè)。 Including singleand multiring chain ring chain, chain link can take many forms change, see Figure a) to c), the basic structure shown in Figure 2. 8 do Features: knife apply to the larger capacity of the occasion, the space of the small number of generally applicable to the tool in the 30120. Only increase the length of the chain tool will increase the number should not be increased circumferential speed of its moment of inertia of the knife does not increase the disc as large.(4) linear bination knife and the knife library The linear knife simple structure in Figure , tool single order, the capacity of small knife, used for CNC lathe and drill press on. Because the location of fixed knife, ATC pleted action by the spindle without manipulator. The cutter knife is generally the turret bination turret with a bination of the disc cutter knife and the chain bination. Every single knife the knife certificates of smaller, faster tool change. There are also some intensive drum wheel, and the latticetype magazine for the knife, the knifeintensive though. Small footprint, but because of structural constraints, basically not used for single processing center, the concentration used for FMS for the knife system. Tool storage capacityTool storage capacity of the first to consider the needs of processing, from the use of point of view, generally 10 to 40 knives, knife will be the utilization of the high, and the structure is pact. Tool options(1) choose to order processing tool according to the order, followed Add to the knife every knife in the Block. Each tool change, the order of rotation of a cutter knife on location, and remove the need knives, has been used by the cutter knife can be returned to the original Block, can also order Add Block, a knife. However, as the knife in the tool in different processes can not be repeated use of the knife must increase the capacity and。,1982.[13] （精）.化學(xué)工業(yè)出版社，1986.附錄附錄1英語(yǔ)原文：Design Of Tool Machine Prop Research significanceThe original knife machine control procedures are designed individually, not used tool management system, features a single parison, the knife only has to find the tool knife, knife positioning the shortest path, axis tool change, but does not support largescale tool. Automatic knife in the knife election, in the puter memory knifeelection on the basis of using the Siemens 840 D features, and the election procedures knife more concise, and plete the space Daotao View. ATC use the knife rapid pletion of STEP7 programming, and have been tested in practice. In the positioning of the knife, PLC controlled modular design method, which future production of similar machines will be very beneficial, it is easy to use its other machine. Automatic tool change systems will be faster growth, reduced tool change time, increase the positioning accuracy tool is an important means to help NC technology development. Tool and inventory ponents of modern production is an important link in the management, especially for large workshop management. The traditional way of account management, and low efficiency, high error rate, and not sharing information and data, tools and the use of state can not track the life cycle, are unable to meet the current information management needs. With actual production, we have to establish a workshop tool for the threedimensional tool storage system to meet the knife workshop with auxiliary storage and management needs. The system uses optimization technology, a large number of puter storage inventory information, timely, accurate, and prehensive tool to reflect the inventory situation. The entire system uses a graphical interface, manmachine dialogue tips from the Chinese menu, select various functions can be realized and the importation of all kinds of information. Management system using online help function. Through the workshop management, network management and sharing of information. Have automated inventory management, warehousing management tool, a tool