【正文】
BG 型泥泡與其他液壓泥泡相比較,其優(yōu)點(diǎn)為:(1)外形尺寸小,車(chē)輪裝在炮身上,使泥泡總高度降低為 1762mm,低于 MHG 泥泡和其他泥泡,可安裝在風(fēng)口平臺(tái)下面,為機(jī)械化更換風(fēng)口創(chuàng)造了條件。25m??2244..5Qvd???由于液壓泥炮是高爐爐前的液壓設(shè)備,高溫條件下,泥炮的工作介質(zhì)應(yīng)選為不易燃燒的純?nèi)姿狨?,該油液不易燃燒,即使燃燒也能很快撲滅,不?huì)發(fā)生大火災(zāi),正常運(yùn)轉(zhuǎn)后油的運(yùn)動(dòng)粘度 ,油的密度為 。????取標(biāo)準(zhǔn)值,回油管道內(nèi)徑 ,39。2hm 最小導(dǎo)向長(zhǎng)度的確定對(duì)于液壓缸,最小導(dǎo)向長(zhǎng)度 應(yīng)滿(mǎn)足2H20LD??式中 —液壓缸的最大行程2L —液壓缸的內(nèi)徑D則 ,取2409652Hm???265H?活塞寬度 一般 ,取2B??:??由于 ,一般 ,取80Dm?隔套長(zhǎng)度 由需要的最小導(dǎo)向長(zhǎng)度 決定,即2C2H????2165720lB???????因此 ??????14 缸體長(zhǎng)度的確定缸體內(nèi)部長(zhǎng)度 24072neilLBm???缸體外部總長(zhǎng)度 39。11492856waineillhm??9 打泥油缸的最大流量根據(jù)流體連續(xù)性原理 20max1DQ??????????式中 —打泥油缸直徑, ;0D032 —泥塞移動(dòng)速度, ;1????22 s? ?????????????? 打泥管道尺寸的確定取液壓系統(tǒng)壓油管道允許流速 25mVs則管道直徑 ????取標(biāo)準(zhǔn)值,壓油管道內(nèi)徑 ,12m.?取液壓系統(tǒng)回游管道允許流速 39。帶有導(dǎo)槽 10 的門(mén)行框架 4 與轉(zhuǎn)臂 6 剛性連接,導(dǎo)槽口的角度是固定的,但炮身 1 和走形輪是用螺栓和斜楔連接,這不但使整體更換炮身和車(chē)輪比較方便而且能通過(guò)調(diào)整墊片調(diào)節(jié)炮身的傾斜角度。隨著高爐大型化和高壓操作技術(shù)的實(shí)現(xiàn)以及爐前操作機(jī)械化的要求,液壓泥炮將會(huì)得到更廣泛的使用,從而取代電動(dòng)泥炮,成為將來(lái)泥炮機(jī)構(gòu)中的主宰。關(guān)鍵詞: 液壓傳動(dòng)、泥泡、BG 型Design and application of casting process of die bendingIIABSTRACTWith the blast furnace volume continues to expand, improvement of the furnace top pressure, using anhydrous taphole clay and blast furnace tuyere platform requires a certain space, and casthouse of stemming requirements, over a long period of use electric mud gun has not meet the needs of the development of blast furnace production. Therefore, to be replaced by the better performance of short hydraulic clay gun. And previous use blast furnace equipment of electric mud bubble pared, hydraulic mud bubble with mud making large thrust, pacted mud, pressing force is stable, pact structure, convenient operation, better adapt to the blast furnace, the advantages of high pressure, oil pressure device is not installed in the mud gun body, thus simplifying the mud gun structure. In view of the merits of the hydraulic clay gun and electric gun shortings, both at home and abroad in the development of the hydraulic clay gun, so that the hydraulic mud gun technology has been developed rapidly. The hydraulic clay gun is mainly posed of five parts: the clay beating mechanism, a pressing mechanism, a rotating mechanism, a locking mechanism and hydraulic control system.Key words: Hydraulic transmission、Mud bubbles、Type BG1第一章 緒論泥炮又稱(chēng)為堵出鐵口機(jī)器。本論文在 BG 型液壓泥泡的基礎(chǔ)上進(jìn)行設(shè)計(jì),通過(guò)從打泥機(jī)構(gòu),壓炮機(jī)構(gòu),旋轉(zhuǎn)裝置三個(gè)方面進(jìn)行了全方位的計(jì)算分析,以達(dá)到設(shè)計(jì)要求。其由打泥機(jī)構(gòu)、壓緊機(jī)構(gòu)、回轉(zhuǎn)機(jī)構(gòu)、鎖緊機(jī)構(gòu)和液壓裝置組成。這里采用無(wú)縫鋼管,則 ;??? ??10aMP??所以 ??????取 。maxFmax?max0P??式中 —壓炮力,已知 ;P170PKN —最小張緊力,對(duì)于液壓泥泡,一般 ,取 ;0 023KN:025P?max0514F???由上可得液壓缸內(nèi)徑11???????取標(biāo)準(zhǔn)值可取 ;290m又 ,所以活塞桿直徑 。n362O由下圖可見(jiàn): ??coscosneRC?????????tancossinQBeDBCeD???????????其中 ??22cosWT??? 22inDB?取 , , , ,20Cm100m?90e, 。160mLr3aMPminr 液壓油箱的確定液壓油箱在不同條件下,影響散熱的條件很多,通常按壓力范圍來(lái)考慮,有油箱容量經(jīng)驗(yàn)公式為: pVaq??式中 —液壓泵額定流量;pq —經(jīng)驗(yàn)系數(shù),冶金機(jī)械取 ;a10a則 106pVqL???? 電機(jī)的選擇在電動(dòng)機(jī)的工作循環(huán)過(guò)程中,液壓泵的流量變化較大,因而須分別計(jì)算出各個(gè)動(dòng)作階段所需功率,驅(qū)動(dòng)功率取平均功率。液控單向閥的額定流量為 200L/min,額定壓力損失為 。同時(shí)我還要感謝在我學(xué)習(xí)期間給我極大關(guān)心和支持的同學(xué)和朋友。?? 液壓系統(tǒng)的散熱功率液壓系統(tǒng)的散熱渠道主要是油箱表面,前面初步求得油箱的有效容積為 。對(duì)于一般液壓傳動(dòng)系統(tǒng)來(lái)說(shuō),主要是進(jìn)一步確切地計(jì)算液壓回路各段的壓力損失,容積損失及系統(tǒng)效率,壓力沖擊和發(fā)熱溫升等。339。213,取 。10 md????????39。油缸座上裝有擋泥環(huán)和漏泥孔,可以有效地防止泥泡落到油缸活塞桿上。泥炮由打泥機(jī)構(gòu)和回轉(zhuǎn)機(jī)構(gòu)組成,它沒(méi)有專(zhuān)門(mén)的壓炮機(jī)構(gòu)和鎖緊裝置,依靠回轉(zhuǎn)機(jī)構(gòu)使炮嘴壓緊在出鐵口的泥套上。1液壓泥炮液壓系統(tǒng)的畢業(yè)設(shè)計(jì) 目 錄摘 要 ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????IABSTRACT ??????????????????????????????????????????????????????????????????????????????????????