Water hydraulic technology is developing rapidly at present. The water hydraulic piston pump has become a key component in the field of water hydraulic technology. The paper describes the invention of a new mechanism which translates rotational movement into linear motion for application in a water hydraulic piston pump. The kinematic and dynamitic models of the mechanism were built and simulation was accomplished based on the mathematic models. Simulation results were analyzed and compared with a traditional swashplate slipper pump. Comparison results indicated that this mechanism could reduce the number of tribology pairs and reaction force between piston and cylinder block. The lateral force was only 1/18 of that for a swashplate slipper piston pump. The value of product between pressure and velocity (PV value) for the piston was small, resulting in a great reduction in friction and wear for the piston–cylinder couples. The new pump was tested in a flow test apparatus. The experimental results showed that the pump achieved a volumetric efficiency of up to 92% at the required flow rate and operating pressure. The pump was found to have steady and excellent operating characteristics. This research contributes to the overall development of water hydraulic technology.
Design and Research on the New Type Water Hydraulic Axis Piston Pump
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received May 2, 2015; final manuscript received January 13, 2016; published online February 24, 2016. Assoc. Editor: Allen C. Smith.
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Zuti, Z., Shuping, C., Xiaohui, L., Yuquan, Z., and Weijie, S. (February 24, 2016). "Design and Research on the New Type Water Hydraulic Axis Piston Pump." ASME. J. Pressure Vessel Technol. June 2016; 138(3): 031203. https://doi.org/10.1115/1.4032577
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