Design of Minimum Diameter of Piston Neck in Swashplate Axial Piston Pump

被引：0
|
作者：
Li Y. [1 ,2 ]
Zhang J. [1 ]
Zhang Z. [1 ]
Wang X. [1 ]
Zhang J. [1 ]
Kong X. [1 ,2 ]
机构：
[1] College of Mechanical Engineering, Yanshan University, Qinhuangdao
[2] Hebei Heavy Machinery Hydrodynamic Transmission and Control Laboratory, Qinhuangdao
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2024年 / 60卷 / 04期
关键词：
piston neck; static reliability; stress field simulation; stress-strength interference; swashplate axial piston pump;
D O I：
10.3901/JME.2024.04.430
中图分类号：
学科分类号：
摘要：
In order to solve the problem of the swashplate axial piston pump causing the plunger neck fracture under high speed and high pressure, the design and verification of the plunger neck of the plunger pump are studied, and the design method of the minimum diameter of the plunger neck is proposed. Based on the force analysis of the plunger shoe assembly in the drain area, a force model of the plunger neck under high pressure is established. Based on the stress-strength interference distribution theory, combined with the stress distribution of the plunger neck and the fatigue strength of the plunger, the expression of the fatigue reliability of the plunger neck is proposed, and the minimum diameter of the neck of the plunger of the axial piston pump is obtained. The finite element method was used to perform static simulation analysis of the plunger with the minimum neck diameter, and the safety check of the plunger strength was realized by combining the stress cloud diagram. Under the rated working conditions, the axial piston pump designed according to the design method of the minimum diameter of the plunger neck was tested with volumetric efficiency and mechanical efficiency, the design criteria are used to verify the design of the plunger neck of the axial piston pump of similar products，and the rationality of the proposed design method of the minimum diameter of the plunger neck was verified. © 2024 Chinese Mechanical Engineering Society. All rights reserved.
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页码：430 / 437
页数：7
相关论文
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