Water lubricated bearing technology development ( 1)

Ship ship areas: the application and industrialization of water lubricated rubber bearings, the developed countries such as America, Britain, Russia, Canada, Germany, Denmark, Japan, Finland, earlier research, and then starts late in our country. In 1980, the United States naval engineering laboratory developed the soil water motor. In 1988, developed the 14 mpa pressure, flow rate of 451 l. / min water homework tools ISFI and the university of Delaware in 1988 and successfully developed the 6. 2 mpa, 191. Min plunger, in 1978, the British DF1 successfully developed with seawater driven underwater operation tools. In 1988 by ceramic and enhanced polymer materials made from sea water pump and motor. Developed by 14 mpa water (1995 Fresh water) , the normal operation life is 500 h, the British hayward qin le company, in the absence of water lubricated sliding bearing is adopted in packing pump structure, the shaft material for martensitic stainless steel or carbon steel sheet surface mirror, and bearing shell material for asbestos filled phenolic resin. Canada's soup into golden co. , LTD. , in the boat box axis bearing water lubrication system, adopted in stainless steel bearings bearing on a layer of polymer composite materials. German Hauhmco company produced is suitable for the HFA to the plunger spring series of products of the water. Hamburg university of technology with ceramic materials trial-produced the axial plunger pump, vickers ( 维氏硬度计) And Mitchell ( Michell) Company is in deep well pump and submersible pump adopt water lubrication rubber bearing, and bearing shell with rubber material. Denmark Danfoss company design and produce a series of pure water hydraulic components, all friction pair with water lubrication, and popularization and application in forging press, food machinery, etc. Japan original mitsubishi heavy industries, such as research and manufacture the series of pure water element, 21 mpa water pressure, rotating speed of 1800 r/min, the volumetric efficiency was 80%, and the total efficiency of 81%. Japan also produced under 12 km deep water complete sets of hydraulic system. In addition, the Japanese are used in centrifugal and Marine centrifugal pump the water lubricated bearing. In large internal combustion engine oil tankers in boiler feed pump, fruit with self-contained water embellish sliding bearing, bearing materials for carbon alloy. Toshiba also developed on the steam turbine generator and the turbine generator like water embellish sliding bearing. Finland produce applied to drag the high pressure water pump, speed is 10000 min of high-speed motor, the rotor is solid ( The laminated) , the outer diameter of 70 mm, corresponding to 100000 min peripheral speed of 367 m/s, heavy motor 40 kg. Via the inverter for high speed, motor, motor bearing for the water hydraulic lubrication bearing, stator for class F insulation. And Winterthur Swiss IBAG company Technical university developed HF170HA40HKV type of spindle, the bearing lubrication water static pressure bearing, speed up to 40000 / min, about 37 kw power, Fischer company Hrdro F motorized spindle also collects water hydrostatic bearing lubrication, speed is 360007 / min, the power of 67 kw. Yoshimoto of Tokyo university of science and technology, developed the surface with spiral groove cone type water lubricated bearing, its rotational speed 12000 / min, circuit board used for micro hole machining since 1985, the state key laboratory of mechanical transmission, chongqing university developed in collaboration with chongqing pentium technology development co. , LTD