外文翻译- 液压系统概述.docx

1、外文资料与中文翻译外文资料：Hydraulic SystemHydraulic presser drive and air pressure drive hydraulic fluid as the transmission is made according to the 17th century, Pascals principle of hydrostatic pressure to drive the development of an emerging technology, the United Kingdom in 1795 Braman Joseph (Joseph Brama

2、n ,1749-1814), in London water as a medium to form hydraulic press used in industry, the birth of the worlds first hydraulic press. Media work in 1905 will be replaced by oil-water and further improved.AftertheWorld War I (1914-1918),becauseof theextensive application of hydraulic transmission, espe

3、c- ially after 1920, more rapid development. Hydraulic components in the late 19th century about the early 20th century, 20 years, only started to enter the formalphase of industrial production. 1925 Vickers (F. Vikers) the invention of the pressure balanced vane pump, hydraulic components for the m

4、odern industrial or hydraulic transmission of the gradual establishment of the foundation. The early 20th century G Constantimscofluct - uations of the energy carried out by passing theoretical and practical research; in 1910 on the hydraulic trans- mission (hydraulic coupling, hydraulic torque conv

5、erter, etc.) contributions, so that these two areas of develo-pment.The Second World War (1941-1945) period, in the United States 30%of machine tool applications in the hydraulic transmission. It should be noted that the development of hydraulic transmission in Japan than Europeand the United States

6、 and other countries for nearly 20 years later. Before and after in 1955, the rapid development of Japans hydraulic drive, set upin 1956, Hydraulic Industry. Nearly 20 to 30 years, the development of Japans fast hydraulic transmission, a world leader.Hydraulic transmission There are many outstanding

7、 advantages, it is widely used,such as general industr- ial use of plastics processing machinery, the pressure of machinery, machine tools,etc.;operating machineryengineering machinery, constructionmachinery, agricultural machinery,automobiles,etc.;iron and steelindu-stry metallurgical machinery, li

8、fting equipment, such as roller adjustment device; civil water projects with flo- od control and dam gate devices, bed lifts installations, bridges and other manipulation of institutions; speed turbine power plant installations,nuclearpowerplants,etc.;shipfromthedeckheavy machinery (winch), the bow

9、doors, bulkhead valve, stern thruster, etc.; special antenna technology giant with control devices, measu- rement buoys, movements such as rotating stage; military-industrialcontrol devices used in artillery, ship anti- rolling devices, aircraft simulation, aircraft retractable landing gear and rudd

10、er control devices and other devi- ces.A complete hydraulic system consists of five parts, namely, power components, the implementation of co- mponents, control components, auxiliary components and hydraulic oil.The role of dynamic components of the original motive fluid into mechanical energy to th

11、e pressure that the hydraulic system of pumps, it isto power the entire hydraulic system. The structure of the form of hydra- ulic pump gears are generally pump, vane pump and piston pump.Implementation of components (such as hydraulic cylinders and hydraulic motors) which is the pressure of the liq

12、uid can be converted to mechanical energy to drive the load for a straight line reciprocating movement or rotational movement.Control components (that is, the various hydraulic valves) in the hydraulic system to control and regulate the pressure of liquid, flow rate and direction. According to the d

13、ifferent control functions, hydraulic pressure control valve can be divided into valves, flow control valves and directional control valve. Pressurecontrol valves are divided into benefits flow valve (safety valve), pressure relief valve, sequence valve, pressure relays, etc.; flow control valves in

14、cluding throttle, adjusting the valves, flow diversion valve sets, etc.; directional control valve includes a one-way valve , one-way 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

15、and set the value of the ratio control valve.Auxiliary components, including fuel tanks, oil filters, tubing and pipe joints, seals, pressure gauge, oil level, such as oil dollars.Hydraulic oil in the hydraulic system is the work of the energy transfer medium, there are a variety of mineral oil, emu

16、lsion oil hydraulic molding Hop categories.The role of the hydraulic system is to help humanity work. Mainly by the implementation of components to rotate or pressure into a reciprocating motion.Hydraulic system and hydraulic power control signal is composed of two parts, the signal controlof some parts of the hydraulic power used to drive the control valve m