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High pressure and low noise radial piston pump JBP series features
Abstract: This paper introduces the development and production of radial piston pump at home and abroad. The structural characteristics and performance indexes of YPG pump with high and low noise were mainly described, and the prospect and application of the product were also briefly analyzed. Keywords: Radial piston pump Structural characteristics Performance indicators With the continuous development of science and technology, the automation of modern equipment is getting higher and higher. The hydraulic transmission and control system is widely used in all walks of life for its advantages of high transmission power, high control precision, fast response speed, easy integration of electro-hydraulic and hydraulic control. As the hydraulic system power source - hydraulic pump requirements are getting higher and higher. Radial piston pump with its high working pressure, impact. Long service life, high control precision and low noise, which arouse the attention of the domestic and international hydraulic pump manufacturers and the favor of the manufacturers. It is widely used in metallurgy, mining, forging, injection molding, shipbuilding, heavy machinery and equipment. The development and production of radial piston pump at home and abroad The radial piston pump can be divided into valve distribution and shaft distribution with two major categories. Valve distribution radial piston pump has the disadvantage of high failure rate and low efficiency. The international development of the 70,80 generation shaft radial flow radial piston pump to overcome the valve with radial piston pump deficiencies. Due to the structural features of the radial pump, Shaanxi set the axial flow radial piston pump axial piston pump than the impact resistance, long life, high control accuracy. Making it an excellent high-pressure pump, representing the international advanced level of hydraulic pump manufacturing. However, it has high technology content and is difficult to manufacture and manufacture. Only a few companies in the world, such as BOSCH and VOITH, can produce. The Bosch company can only produce 90mL eight specifications of the pump, Voith company only produces 110 a 250mL / r specifications of the pump. Since the late 1980s and early 1990s, many research institutes and manufacturers began to research and develop such products in our country, but none of them made any substantial progress. Mainly because of the need to deepen in theory, in the actual production can not solve the rotor and the distribution axis, slipper and stator pairs of friction pair burn problem. Some manufacturers in the rotor bore by casting bearing alloy and other methods to overcome burning research, but the effect is not satisfactory, this approach is used in small displacement pump, although it can prevent the problem of friction co-firing, but the pump life not long. By our famous hydraulic expert Professor Lu Wang and material experts Professor Leng Bingjun and his group after years of research and development, has made "over balanced pressure compensation and double row radial piston pump" and "a new type of high pressure Displacement double rotor radial piston pump "two technology patents," alloy austenite-bainitic ductile iron development and application of "a national new material technology achievements. The achievement of these technical achievements made the development of radial piston pump in our country make breakthrough progress in the design theory and material technology. Lanzhou Yongxin Technology Co., Ltd. to the above two patents and a new material technology achievements for the support of the successful development and production of JBP series of electromechanical controlled radial piston pump, the State Ministry of Science and Technology "85" research and national science and technology Torch Program Project. The pump in a number of enterprises conducted 2-3 years of industrial assessment test, excellent performance.