液壓畢業(yè)設(shè)計外文翻譯-液壓系統(tǒng)(參考版)
2025-01-23 03:46本頁面
【正文】 militaryindustrial control devices used in artillery, ship antirolling devices, aircraft simulation, aircraft retractable landing gear and rudder control devices and other devices. 6 The concept of gear pump is very simple, that it is two of the most basic form of the same size gear in a close cooperation of mutual engagement with the rotating shell, the shell39。 ship deck crane (winch), the bow doors, bulkhead valves, such as the stern thruster 。 civil water projects with flood control the dam gates and devices, bed lifts installations, bridges and other manipulation of institutions。 operating machinery engineering machinery, construction machinery, agricultural machinery, automobiles, etc.。s hydraulic drive, set up in 1956, Hydraulic Industry. Nearly 20 to 30 years, the development of Japan39。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。s law, small piston to the pressure of the pressure through the liquid passed to the large piston, piston top will go a long way to go. Based crosssectional area of the small piston is S1, plus a small piston in the downward pressure on the F1. Thus, a small piston on the liquid pressure to P = F1/SI, Can be the same size in all directions to the transmission of liquid. By the large piston is also equivalent to the inevitable pressure P. If the large piston is the crosssectional area S2, the pressure P on the piston in the upward pressure generated F2 = PxS2 Crosssectional area is a small multiple of the piston crosssectional area. From the type known to add in a small piston of a smaller force, the piston will be in great force, for which 5 the hydraulic machine used to suppress plywood, oil, extract heavy objects, such as fing steel. History of the development of hydraulic And air pressure drive hydraulic fluid as the transmission is made according to the 17th century, Pascal39。 directional control valve includes a oneway valve , oneway fluid control valve, shuttle valve, valve and so on. Under the control of different ways, can be divided into the hydraulic valve control switch valve, control valve and set the value of the
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