【正文】 forementioned converter noise theory, expert systems and existing converter automatic control system of bining to form the BOF lance guncontrol expert system, guiding a high degree of adjustment of oxygen gun. Lance gun expert knowledge base system is the use of oxygentank unit and its impact on dissolution of the noise intensity with the relationship between the development of production. In the knowledge base to ensure that at least a blowing process, determine the status of furnace, splash early warning, early warning and returned to stem the best of Java and other areas of knowledge. These elements are strong between the simultaneous existence of close ties and knowledge base of knowledge are major reserves of strength with the noise of the relationship between the situation. Knowledge Base recorded in different kinds of steel, iron smelting at the different ponents of the gunoperation process. Converter work through the process of recording, I BOF noise strong trend, as provided by the expert system blowing into the first stage to stage 2 of the methods and judgement in the decarbonization of oxygen in the course of the gun in a short period of time repeatedly submerged blowing And exposed the state judge blowing method. In the production of records when the furnace splash in the minimum noise and I happened to the stem, the maximum noise, in the process of blowing prevent splash back to dry and to provide control methods. To receive a higher optimization blowing process, dephosphorization speed, through the state to adjust the sound intensity oxygen decarburization gun position to ensure the rapid and dephosphorization to ensure that the gunin a more appropriate location. Reasoning, using experts in the field thinking the same methods and rules of the incident match the reasoning strategy, such a method of reasoning of the system can be used by the production structure in the knowledge base that flexibility in the use of knowledge. For the gunlance expert system, to consider and to prevent splash back to the stem, in no splash and back to dry on the basis of guncontrol will be in the best of Java near the curve. If a bad phenomenon, using the knowledge base to process, through the judgement of the incident with the knowledge of the rules to match the degree of oxygen gun action to adjust. Manmachine interface system through the network for data exchange, userfriendly data entry, surveillance, gun control oxygen converter process and equipment to the scene through the acquisition of data, and knowledge acquisition functions to facilitate the identification of reasoning. 3 system simulation test. A lance gun expert knowledge base system and the simulation system through the establishment of an imminent splash of oxygen for the gun and the guncontrol effects simulation analysis . The experts pared the scene in the sound system and strong record in the knowledge base, the imminent splash draw the conclusions, the expert system based on the gunlance guide in the knowledge base of knowledge and reduce gunbit, So that the gunand has reached the minimum threshold of the gun in order to eliminate the possibility of a splash. The selection of data after the initial Java district of the system by experts after the start guncontrol, 4 min scale slag partial dry, raising the gun in a timely manner, to increase the slag FeO in the content, improve the slag Mobility, making back to stem the trend to ease. After the residue of the good, sound intensity curve to the splash of mobile trends, expert systems will reduce gun in order to prevent the occurrence of spla。 I have to slag under the bubble of oxygen gun at the vents direct p sound intensity。結(jié) 束 語氧槍是轉(zhuǎn)爐煉鋼過程中必不可少的設(shè)備，吹氧條件的好壞直接影響產(chǎn)品質(zhì)量和其生產(chǎn)能力。（2）冷卻水流量高于認定值的120%時，切斷氧氣、煤氣源，提槍到停放位。出于從安全角度考慮，頂槍燃燒控制單元采用德國SMS MEVAC公司針對頂槍特性專門研制的基于硬邏輯方式的控制器，完全避免了軟邏輯帶來的危險。在頂槍內(nèi)壁通有冷卻水。過濾器的算法公式為： ()式中：F為T時間周期內(nèi)的累積誤差的平均值；X為某時刻的進水流量；Y為某時刻的出水流量。由[機械設(shè)計]表151查得， 截面上由于軸肩而形成理論應(yīng)力集中系數(shù)和按附表32查取。從應(yīng)力集中對軸的疲勞強度的影響來看，截面C處過盈配合引起的應(yīng)力集中最嚴重。鍵的工作長度，鍵與輪轂的接觸高度；由式可得： () 因此該鍵符合要求。類型選擇為了隔離振動與沖擊，選用彈性套柱銷聯(lián)軸器載荷計算 公稱轉(zhuǎn)矩 由[機械設(shè)計]表141查得，故由式得計算轉(zhuǎn)矩為型號選擇從GB432385中查得TL13型彈性套柱銷聯(lián)軸器的許用轉(zhuǎn)矩為，許用最大轉(zhuǎn)速為，軸徑為120~170mm之間，故合用。m/2= (mm)②蝸輪查《機械設(shè)計手冊3》 z4=61；變位系數(shù)X4=+驗算傳動比 i2=z4/z3=61/1=61這時傳動比誤差為（）/61≈=% 5%是允許的。Kβ（1）選擇蝸桿傳動類型 根據(jù)GB/T100851988的推薦，采用漸開線蝸桿（ZI）（2）選擇材料蝸桿用45號鋼，因希望效率高些，耐磨性好些，故蝸桿螺旋齒面要求淬火，硬度為45~55HRC。KHαd1t=1= (mm) mnt=(d1t因此考慮在蝸輪蝸桿減速級前，再加一級斜齒圓柱齒輪減速。z1 =17②計算功率Pca查《機械設(shè)計》表96得工作情況系數(shù)KA=P鏈 =Pr綜上所述：選用方案2。由液壓缸帶動機架完成旋轉(zhuǎn)。遠程自動操作是指操作員直接在HMI上設(shè)定槍位，經(jīng)過PLC比較后，自動控制槍的升降，該方式為正常生產(chǎn)操作方式，并帶所有控制聯(lián)鎖。相比之下，下動法頂槍質(zhì)量較輕由頂槍完成升降和旋轉(zhuǎn)運動更容易實現(xiàn)，也方便機構(gòu)的設(shè)計和維修。（3） 采用大抽氣能力的確蒸汽噴射真空泵，裝備有真空自動控制系統(tǒng)和高壓水清洗裝置。目前國內(nèi)外RH真空處理都向插入管長壽命化、處理功能多樣化、處理連續(xù)化、生產(chǎn)過程控制全自動化方向發(fā)展。起停。RH法是德國魯爾鋼（Ruhrstahl）公司和真空泵廠家赫拉烏斯（Heraeus）公司共同設(shè)計的。在西歐、日本、美國得到普遍推廣,僅日本就有40余臺,%,新日鐵大分廠、川崎制鐵水島廠已全量進行RH真空精煉。 遼寧科技大學本科生畢業(yè)設(shè)計 第 III 頁 R真空處理頂槍升降及旋轉(zhuǎn)機構(gòu)設(shè)計畢業(yè)論文目錄摘要 IAbstract II1. 緒 論 1 RH法介紹 1 RH真空處理裝置的特點 3 3 4 4 5 6 6 7 8 8 8 10 10 105. 傳動系統(tǒng)設(shè)計 13 13 15 15 15 22 27 27 28 28 30 30 30 30 31 32 34 40 頂槍冷卻水控制 40 頂槍安全控制策略 41 42 42 42結(jié) 束 語 44致 謝 45參考文獻 46 遼寧科技大學本科生畢業(yè)設(shè)計 第 4 頁 1. 緒 論 RH法介紹隨著科學技術(shù)的進步和我國工業(yè)的飛速發(fā)展，人們對鋼鐵的性能和質(zhì)量有了更高的要求。至今,全世界已有100余臺。其中RH工藝是較為常見的方法。 （3） 電氣傳動順序控制，即對爐外精煉所有的電氣設(shè)備按工藝所要求的順序進行控制、聯(lián)鎖。雖然爐外精煉有許多不同的工藝流程，但上述功能都是一樣的。鐵合金稱量和加料系統(tǒng)設(shè)有精調(diào)與細調(diào)，以確保合金化的精度和速度。由于上動法需要真空室完成旋轉(zhuǎn)運動，考慮其重量較大，對機構(gòu)的剛度要求較高，加工制造也相對困難許多，因此上動法不為常用。遠程手動方式是操作員直接在操作站上點擊“上升”“下降”按鈕，控制頂槍升降。() 方案2：采用升降旋轉(zhuǎn)機構(gòu)電動機通過減速器和鏈傳動帶動小車完成升降運動。方案2：液壓缸型號固定，購買、安裝都很方便。①選擇鏈輪齒數(shù)查《機械設(shè)計手冊3》=17，z2=i根據(jù)減速器的工作情況初選圓柱蝸桿減速器