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機(jī)械工程及其自動(dòng)化專業(yè)外文資料翻譯--流體傳動(dòng)(更新版)

  

【正文】 te the work of the turbinedriven rotary rush. My hydraulic ponents in the development of faster, 2020 hydraulic coupled devices produced about 70,000 National Taiwan. Widely used for Daishishusongji, rail carriers, ball mill, airpressors, pressors, pumps and fuel pumps, and other equipment, transmission, improve transmission quality and energy conservation. My hydraulic coupled with the current maximum output rotational speed for 6500r/min, minimum power to , the maximum power to 7100kW. Hydraulic trend is coupled with a high rotational speed and power. International hydraulic coupled device products to the most famous German Fuk under special pany, according to information that has reached 20200r/min rotational speed and power to 55000kW products, which are still visible in considerable gap. Of course, the power of the big oil hydraulic ponents for hydraulic transmission requirements higher. Hydraulic Bianjuqi mainly for engineering machinery, machinery and diesel oil. Hydraulic Bianjuqi main internal bustion engine with matching applications, the scope of its rotational speed in 2020~3000r/min. Mechanical engineering applications more, the greatest power 700HP about output about 70,000 Taiwan. Oil machinery applications less power to 1500HP. Diesel applications less power up 3000HP. Nien transmission fluid is a liquid transmission doors emerging disciplines in the country are still at an infancy stage. Because liquid Nien transmission products (such as fluid mechanics using Nien) and hydraulic transmission products (such as governorhydraulic coupled device) Notwithstanding the different nature, but because of similar performance and the same purposes (governor energy), in a number of technical activities (such as the formulation of development plans, standards, technology management, orders, and other activities) are regarded as the same type, with the hydraulic industry monalities, it is another chapter on the work of its product mix and transmission oil. Firstly, the performance characteristics of the oil and hydraulic transmission hydraulic transmission oil development not only as a transmission medium for work, but also to provide lubrication bearings and gear while the carrier is further bad fever, heat away. Hydraulic transmission oil is a plex and require specialized research topics, which is directly related to the reliability of hydraulic ponents, transmission efficiency and service life. Should arouse the attention of extensive indepth study. Hydraulic transmission oil should meet the following requirements: First. A suitable lowviscosity liquid viscosity, liquid indicate friction within small, mobile resistance small loss may reduce hydraulic ponents hydraulic losses。它是一些半有機(jī)硅的聚合物或共聚物,含有重復(fù)的硅氧單元為元機(jī)骨干,并沿著聚合鏈的硅原子上取代烴基,一般不含支鏈。 汽車發(fā)動(dòng)機(jī)在適宜溫度下才能有較高的燃油效率,過(guò)冷過(guò)熱均不適宜。其傳動(dòng)油系由美國(guó)帶來(lái)。 除上述要求外,工作液體還應(yīng)具有防銹作用、抗泡沫能力、凝點(diǎn)要低、閃點(diǎn)應(yīng)高、不易揮發(fā)、無(wú)毒等。當(dāng)控制壓力足夠大時(shí),主、從動(dòng)摩擦片粘合,變?yōu)橹甭?lián)傳動(dòng)。 屬下列情況之一時(shí),需要更換新油: 含水量大于 %時(shí); 在 50℃ 時(shí)的粘度 比新油高出 6 厘沲時(shí);機(jī)械雜質(zhì) (苯不溶物 )達(dá)到 %時(shí);出現(xiàn)水溶性酸堿或有高的酸值時(shí); 泡沫過(guò)多影響傳動(dòng)功率時(shí)。 要有較大的重度 由于液力元件傳遞的力矩和功率與工作液體的重度成正比,故液體重度越高越好。 液粘傳動(dòng)是液體傳動(dòng)一門新興學(xué)科,在我國(guó)尚處于起步階段。液力偶合器的發(fā)展趨勢(shì)是高轉(zhuǎn)速、大功率。 液力傳動(dòng)的基本元件是液力偶合器和液力變矩器。液壓傳動(dòng)基于帕卡定律,以液體的壓能來(lái)傳遞動(dòng)力;液力傳動(dòng)基于歐拉方程,以液體動(dòng)量短的變化來(lái)傳遞動(dòng)力;液粘傳動(dòng)基于牛頓內(nèi)摩擦定律,以液體的粘性來(lái)傳遞動(dòng)力。當(dāng)前我國(guó)液力偶合器的最高輸出轉(zhuǎn)速為6500r/min,最小功率為 ,最大功率為 7100kW。內(nèi)燃機(jī)車應(yīng)用更少,功率高達(dá) 3000HP。同時(shí)要求液體粘溫性要好,以便在高溫或低溫時(shí)仍能保持有效的潤(rùn)滑和密封。 內(nèi)燃機(jī)車有專用油,要求使和 壽命不小于 2020 小時(shí),要求新設(shè)備裝油初次運(yùn)行 100小時(shí)和 500 小時(shí)之后進(jìn)行第一、第二次換油,進(jìn)行濾清后仍可使用。從動(dòng)摩擦片及輸出軸與工作機(jī)相聯(lián),輸出轉(zhuǎn)速隨控制壓力而變化,球狀油缸的控制壓力大,則片間油膜變薄,則輸出轉(zhuǎn)速升高,反之亦然。 (4)有較高的比熱容和較高的熱導(dǎo)率 。我國(guó)山西安太堡煤礦的帶式輸送機(jī)用的是較小規(guī)格。工作過(guò)程中油膜厚度不變,通過(guò)改變充油量和油膜受剪切面積的大小來(lái)調(diào)速。 硅油風(fēng)扇離合器所用硅油是一種合成潤(rùn)滑油,并非由石油提煉得來(lái)。 Hydraulic transmission based on Oula equation to the liquid changes to the short wheel drive transmission
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