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機械專業(yè)畢業(yè)設(shè)計外文翻譯--什么是液壓-液壓系統(tǒng)-wenkub

2023-05-19 00:17:41 本頁面
 

【正文】 ariety of mineral oil, emulsion oil hydraulic molding Hop categories. Hydraulic principle It consists of two cylinders of different sizes and position of fluid in the fluid full of water or oil. Water is called hydraulic press。s first hydraulic press. Media work in 1905 will be replaced by oilwater and further improved. World War I (19141918) after the extensive application of hydraulic transmission, especially after 1920, more rapid development. Hydraulic ponents in the late 19th century about the early 20th century, 20 years, only started to enter the formal phase of industrial production. 1925 Vickers (F. Vikers) the invention of the pressure balanced vane pump, hydraulic ponents for the modern industrial or hydraulic transmission of the gradual establishment of the foundation. The early 20th century Constantine (G ? Constantimsco) fluctuations of the energy carried out by passing theoretical and practical research。 operating machinery engineering machinery, construction machinery, agricultural machinery, automobiles, etc.。 ship deck crane (winch), the bow doors, bulkhead valves, such as the stern thruster 。液壓泵的結(jié)構(gòu)形式一般有齒輪泵、葉片泵和柱塞泵。壓力控制閥又分為益流閥 (安全閥 )、減壓閥、順序閥、壓力繼電器等;流量控制閥包括節(jié)流閥、調(diào)整閥、分流集流閥等;方向控制閥包括單向閥、液控單向閥、梭閥、換向閥等。 液壓的原理 它是由兩個大小不同的液缸組成的,在液缸里充滿水或油。于是,小活塞對液體的壓強為 P=F1/SI, 能夠大小不變地被液體向各個方向傳遞 ”。 液壓傳動的發(fā)展史 液壓傳動和氣壓傳動稱為流體傳動,是根據(jù) 17 世紀(jì)帕斯卡提出的液體靜壓力傳動原理而發(fā)展起來的一門新興技術(shù), 1795年英國約瑟夫 ?布拉曼 (Joseph Braman,17491814),在倫敦用水作為工作介質(zhì) ,以水壓機的形式將其應(yīng)用于工業(yè)上 ,
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