外文翻譯--起重機(jī)的工作需要更多的科學(xué)技術(shù)-其他專業(yè)-文庫(kù)吧資料
2025-01-27 00:38本頁(yè)面
【正文】 oist crane is be used to the hydroelectric power station. It is installed in the expanded workshop of Fengman water and electricity is used to installing,examining and repairing the waterturbine generator set and its accessorial equipments in the water and electricity station are large or mediumsize. These equipments have a high request on the load of bridge type hoist crane , so they also have a high request on the capability of the reducer. Grab bridge bridge crane is running on the elevated track, the car driven by the lifting of materials crawl grab a bridgecrane. Bridge laying on both sides along the elevated track on the vertical run, lifting trolley along the bridge in laying the track on the horizontal run, a rectangular scope of work, you can make full use of space below the bridge lifting material from Ground equipment hindered. Grab bridge cranes widely used in power plants, Mei Chang, and other needs of bulk material handling of the occasion, because of the heavy equipment, transportation difficulties installation, testing the quality of their products in general need in the field. Therefore, control equipment requirements for wiring, small size and portability. And the use of fixedsite conditions, also called a random testing equipment manual control functions to ensure the safety of operation. With the lifting of the transport requirements of the mechanical control continuously improve, more and more advanced means of control. At present the domestic bridge crane control system requires people at the scene to control, control methods are backward. In small and mediumsized crane, the most direct control over the use of controllers, car running, Lord, vice hook upgrade, dropped weights and speed Crane work needs more technology. Construction of tower cranes are the main vertical transportation equipment and also a measure of construction panies and equipment strength of the important logo, in today39。operator training39。Lorain Motocrane39。他們應(yīng)獨(dú)立于安裝和維修的各方面，這由客觀決定。技術(shù)人員應(yīng)該隨著實(shí)際經(jīng)驗(yàn)的提升，直接從制造商哪里獲得標(biāo)準(zhǔn)訓(xùn)練?？吹阶约旱募覉@變成了塵埃和碎片的紐約市居民，會(huì)對(duì)處理這些問(wèn)題的方式感到震驚。 當(dāng)這些需要得到滿足，起重機(jī)作業(yè)應(yīng)進(jìn)行嚴(yán)格按照有關(guān)制造商的指示，工程原則和政府的法律。這是并不復(fù)雜，它是更多地了解知道正確的序列需要做什么，然后按照下列步驟，一個(gè)又一個(gè)，確保每一步在做下一步前成功完成。 攀爬架的設(shè)計(jì)，在制造商之間存在不同，但設(shè)計(jì)的步驟在原則上是相似的。在黑暗中 工作和延長(zhǎng)工作時(shí)間是時(shí)有發(fā)生的。攀登人員容易遭受到影響安全性至關(guān)重要的決策所帶來(lái)的壓力。問(wèn)題與這種類型的現(xiàn)成的知識(shí)是，多年來(lái)，留下來(lái)的非常少，但最重要的細(xì)節(jié)卻丟失了。攀登行動(dòng)更是一個(gè)風(fēng)險(xiǎn)的行動(dòng)，其災(zāi)難性非常高。雇主通常允許任何工人發(fā)信號(hào)指揮起重機(jī)上工地 ，盡管最佳做法是需要合格的人這樣做。你會(huì)如何感覺(jué)，下一次你決定要坐飛機(jī)？在加利福尼亞州，掌握一對(duì)剪刀在頭發(fā)沙龍比操作有潛在危險(xiǎn)的起重機(jī)械需要更多的時(shí)間訓(xùn)練。一周的學(xué)習(xí)將給予一些人足夠的 知識(shí)足以通過(guò)認(rèn)證考試，然后他們可以跳轉(zhuǎn)到的起重機(jī)的駕駛室。不過(guò)，建造業(yè)是把不合格人員放在建 筑起重機(jī)的駕駛位上，甚至沒(méi)有通過(guò)今天的測(cè)試。最近塔式起重機(jī)倒塌在一個(gè)繁忙的紐約市建筑地盤應(yīng)敲響警鐘，提醒我們問(wèn)題的存在，并加強(qiáng)我們目前安全的做法。其安全問(wèn)題仍然是建筑施工中的憂患 。隨著塔式起重機(jī)在施工現(xiàn)場(chǎng)的廣泛使用，由塔式起重機(jī)引發(fā)的傷亡事故也越來(lái)越多，給人民的生命 財(cái)產(chǎn)帶來(lái)重大損失。在中小型起重機(jī)中 , 大都采用控制器直接控制大、小車運(yùn)行 , 主、副鉤提升、下降重物及調(diào)速。隨著對(duì)起重運(yùn)輸機(jī)械控制要求的不斷提高 ,控制手段也越來(lái)越先進(jìn)。所以要求控制設(shè)備接線方便，體積小便于攜帶。橋架沿鋪設(shè)在兩側(cè)高架上的軌道縱向運(yùn)行，起重小車沿鋪設(shè)在橋架上的軌道橫向運(yùn)行，構(gòu)成矩形的工作范圍，就可以充分利用橋架下面的空間吊運(yùn)物料，不受地面設(shè)備的阻礙。水電站內(nèi)設(shè)備一 般都是大中型設(shè)備，對(duì)橋式起重機(jī)的載荷要求較高，所以對(duì)減速器性能要求較
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